ELECTRONIC DEVICE
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`CROSS-REFERENCE TO RELATED APPLICATION(S)
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`[0001] This application claims priority to and benefits of Korean Patent Application No. 10-
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`2021-0113486 under 35 U.S.C. § 119, filed on August 26, 2021, in the Korean Intellectual
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`Property Office, the entire contents of which are incorporated herein by reference.
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`BACKGROUND
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`1. Field of disclosure
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`[0002] The disclosure relates to an electronic device including an area with improved
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`transmittance.
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`2. Description of the Related Art
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`[0003] An electronic device includes various electronic components, such as a display panel
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`and an electronic module. The electronic module includes a camera, an infrared sensor, or a
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`proximity sensor. The electronic module is disposed under the display panel. An area of the
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`display panel has a transmittance higher than a transmittance of another area of the display
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`panel. The electronic module receives an external input through the area or provides an output
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`through the area.
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`[0004] It is to be understood that this background of the technology sectionis, in part, intended
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`to provide useful background for understanding the technology. However, this background of
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`the technology section may also include ideas, concepts, or recognitions that were not part of
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`what was knownor appreciated by those skilled in the pertinent art prior to a corresponding
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`effective filing date of the subject matter disclosed herein.
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`SUMMARY
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`[0005] The disclosure provides an electronic device including an area with improved
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`transmittance in an active area.
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`[0006] The disclosure provides a display panel having a uniform lifespan over a display area
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`with respect to a selected luminance and having improved lifespan in the display area
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`corresponding to an electronic module.
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`[0007] Embodiments provide an electronic device that may include a display panel including
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`a first area including a light blocking area and a transmission area,a first pixel disposed in the
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`first area, a second area adjacent to the first area, and a second pixel disposed in the second
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`area, an input sensor disposed on the display panel, the input sensor including at least one
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`insulating layer and a conductive layer, a black matrix disposed on the at least one insulating
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`layer, a first color filter layer disposed on the at least one insulating layer, the first color filter
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`overlappingthefirst pixel in a plan view, and a secondcolorfilter layer disposed on theat least
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`one insulating layer, the second color filter overlapping the second pixel in a plan view. A
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`thickness ofthe first color filter layer may be smaller than a thickness of the second color filter
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`layer.
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`[0008] The thickness of the first color filter layer may be equal to or greater than about 60%
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`of the thickness of second colorfilter layer and may be equal to or smaller than about 90% of
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`the thickness of the second colorfilter layer.
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`[0009] A difference between the thicknessofthe first color filter layer and the thickness of the
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`second color filter layer may be equal to or greater than about 0.3 micrometers and may be
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`equal to or smaller than about 1.5 micrometers.
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`[0010] Each ofthe first pixel and the second pixel may include at least one first sub-pixel, at
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`least one second sub-pixel, and at least one third sub-pixel. Each ofthe at least one first sub-
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`pixel, the at least one second sub-pixel, and the at least one third sub-pixel may emit a light
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`having a different color from each other. Each ofthe first colorfilter layer and the second color
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`filter layer may includeafirst sub-color filter, a second sub-colorfilter, and third sub-color
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`filter. The first sub-color filter, the second sub-colorfilter, and the third sub-colorfilter each
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`may respectively overlap the at least one first sub-pixel, the at least one second sub-pixel, and
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`the at least one third sub-pixel, in a plan view.
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`[0011] In the first colorfilter layer, the first sub-color filter, the second sub-colorfilter, and the
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`third sub-colorfilter may each have a thickness thatis different from each other. In the second
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`color filter layer, the first sub-color filter, the second sub-color filter, and the third sub-color
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`filter may each have a thicknessthatis different from each other.
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`[0012] A difference betweena thickness ofthe first sub-colorfilter of the first color filter layer
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`and a thicknessof the first sub-color filter of the second color filter layer may be substantially
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`similar to a difference between a thickness of the second sub-colorfilter of the first color filter
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`layer and a thickness of the second sub-colorfilter of the second colorfilter layer.
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`[0013] A difference between a thickness of the third sub-colorfilter of the first color filter layer
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`and a thickness ofthe third sub-colorfilter of the second colorfilter layer may be greater than
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`a difference between a thickness of the first sub-colorfilter of the first color filter layer and a
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`thickness of the first sub-color filter of the second colorfilter layer.
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`[0014] An arrangementofthe at least onefirst sub-pixel, the at least one second sub-pixel, and
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`the at least one third sub-pixel of the first pixel,
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`and an arrangementofthe at least onefirst
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`sub-pixel, the at least one second sub-pixel, and the at least one third sub-pixel of the second
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`pixel may be different from each other.
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`[0015] In the first pixel, the at least one first sub-pixel may include twofirst sub-pixels, the at
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`least one second sub-pixel may include four second sub-pixels, and the at least one third sub-
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`pixel may include twothird sub-pixels. The four second sub-pixels may be spaced apart from
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`each other in a first direction. One of the two first sub-pixels and one of the two third sub-
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`pixels may be spacedapart from each other in a seconddirection intersecting the first direction
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`with the four second sub-pixels interposed between the one of the twofirst sub-pixels and the
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`one of the two third sub-pixels. Another one of the twofirst sub-pixels may be spaced apart
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`from the one of the two third sub-pixels in the first direction. Another one of the two third sub-
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`pixels may be spaced apart from the one of the twofirst sub-pixels in the first direction.
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`[0016] Each of the four second sub-pixels may have a short side extending in thefirst direction
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`and a long side extending in the second direction. Each of the twofirst sub-pixels and each of
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`the two third sub-pixels may have a long side extending in thefirst direction and a short side
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`extending in the second direction. The short side of each of the twofirst sub-pixels faces the
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`short side of each of the two third sub-pixels that are spaced apart. The long side of each of the
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`twofirst sub-pixels and the long side of each of the two third sub-pixels face the short side of
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`at least one of the four second sub-pixels.
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`[0017] One of the two first sub-pixels may have right sides that extend in the first direction
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`and may havefirst connection sides that connectthe right sides adjacent to each other. Thefirst
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`connection sides extend in an oblique direction with respect to the first direction and the second
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`direction.
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`[0018] One of the two third sub-pixels may haveleft sides that extend in the first direction and
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`may have second connection sides that connectthe left sides adjacent to each other. The second
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`connection sides may extendin a direction intersecting the oblique direction.
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`[0019] In the second pixel, the at least one second sub-pixel may include two second sub-
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`pixels spaced apart from each other in the second direction. Theat least one first and sub-pixel
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`of the second pixel and the at least one third sub-pixel of the second pixel may be spaced apart
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`from each other in the second direction.
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`[0020] In the first pixel, the at least one second sub-pixel and the at least one third sub-pixel
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`may be spaced apart from each otherinafirst direction. In the first pixel, the at least onefirst
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`sub-pixel may be spaced apart from the at least one second sub-pixel and the at least one third
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`sub-pixel in a second direction intersecting the first direction. In thefirst pixel, the at least one
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`second sub-pixel and the at least one third sub-pixel each may have a short side extending in
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`the first direction and a long side extending in the second direction, and the at least one first
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`sub-pixel may havea long side extendingin thefirst direction and a short side extending in the
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`second direction. In the first pixel, the long side of the at least one first sub-pixel may overlap
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`the short side of each of the at least one second sub-pixel and the at least one third sub-pixel,
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`in the second direction.
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`[0021] The second pixel may havea circular shape or a quadrangular shape.
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`[0022] Each ofthe first pixel and the second pixel may includetransistors and a light emitting
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`diode electrically connected to at least one of the transistors. The display panel may include a
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`base layer, a buffer layer disposed on the base layer, and a light blocking layer disposed
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`between the buffer layer and the transistors. The light blocking layer may overlap the light
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`blocking area of the first area in a plan view, and may not overlap the transmission area of the
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`first area in a plan view.
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`[0023] The display panel may include inorganic insulating layers disposed on the light
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`blocking layer and an organic insulating layer disposed on the inorganic insulating layers. The
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`inorganic insulating layers may overlap the transmission area in a plan view and surround a
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`transmission opening that exposesat least a portion of the buffer layer. The organic insulating
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`layer may be disposed in the transmission opening, and may cover the exposed portion of the
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`buffer layer.
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`[0024] Thefirst color filter layer and the black matrix may overlap the light blocking area of
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`the first area, in a plan view, and may not overlap the transmission area of the first area. The
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`secondcolorfilter layer and the black matrix may overlap the secondarea, in a plan view.
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`[0025] The display panel further includes an overcoat layer disposed on the first color filter
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`layer and the second colorfilter layer. At least a portion of an upper surface of the black matrix
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`may be coveredby the first color filter layer and second colorfilter layer. A portion of the
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`uppersurface of the black matrix adjacent to the transmission area may be coveredbythe first
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`color filter layer. Another portion of the upper surface of the black matrix may be covered by
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`the overcoatlayer.
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`[0026] The electronic device further may include an electronic module overlapping the first
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`area in a plan view,
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`the electronic module being disposed under the display panel. The
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`electronic module mayinclude at least one ofa light emitting module, a light receiving module,
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`and a camera module.
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`[0027] According to the above, the color filter layer disposed in the area overlapping the
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`electronic module has a thickness thinner than a thickness of the color filter layer disposed in
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`the area that does not overlap the electronic module. As the light transmittance in the area
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`overlapping the electronic module increases, a luminouslifespan is improved. Accordingly,
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`the electronic device has a uniform luminouslifespan over an entire area of the display area.
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`BRIEF DESCRIPTION OF THE DRAWINGS
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`[0028] The above and other advantages of the disclosure will become more apparent by
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`describing in detail embodiments thereof with reference to the attached drawings, in which:
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`[0029] FIG.
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`1 is a schematic perspective view showing an electronic device according to an
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`embodimentof the disclosure;
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`[0030] FIG. 2A is an exploded schematic perspective view showing an electronic device
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`according to an embodimentofthe disclosure;
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`[0031] FIG. 2B is a block diagram showing an electronic device according to an embodiment
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`of the disclosure;
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`[0032] FIG. 3 is schematic diagram of an equivalent circuit showing a pixel according to an
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`embodimentof the disclosure;
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`[0033] FIG. 4 is an enlarged schematic plan view showing an area PP’ of FIG. 2A;
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`[0034] FIG. 5A is a schematic cross-sectional view taken along a line I-I’ shownin FIG.4;
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`[0035] FIG. 5B is a schematic cross-sectional view taken along a line II-I’ shownin FIG.4;
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`[0036] FIG. 6A is a schematic cross-sectional view taken along a line II-III’ shownin FIG.4;
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`[0037] FIG. 6B is a schematic cross-sectional view taken along a line IV-IV’ shownin FIG.4;
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`[0038] FIG. 7 is an enlarged schematic plan view showing an area QQ’ of FIG.4;
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`[0039] FIG. 8A is a schematic plan view showing a display area according to an embodiment
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`of the disclosure; and
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`[0040] FIG. 8B is a schematic plan view showinga display area according to an embodiment
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`of the disclosure.
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`DETAILED DESCRIPTION OF THE EMBODIMENTS
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`[0041] In the disclosure, it will be understood that when an element(or area, layer, or portion)
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`is referred to as being “on,”
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`“connected to,” or “coupled to” another elementorlayer, it can be
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`directly on, connected or coupled to the other elementor layer or intervening elements or layers
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`may be present.
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`[0042] Like numerals refer to like elements throughout. In the drawings, the thickness, ratio,
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`and dimension of components are exaggerated for effective description of the technical content.
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`[0043] In the specification and the claims,
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`the term “and/or” is intended to include any
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`combination of the terms “and”and “or” for the purpose of its meaning andinterpretation. For
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`example, “A and/or B” may be understood to mean “A, B, or A and B.” The terms “and” and
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`“or”? may be used in the conjunctive or disjunctive sense and may be understood to be
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`equivalent to “and/or.”
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`[0044] In the specification and the claims, the phrase “at least one of” is intended to include
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`the meaning of “at least one selected from the group of” for the purpose of its meaning and
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`interpretation. For example, “at least one of A and B” may be understood to mean “A, B, or A
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`and B.”
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`[0045] It will be understood that, although the terms first, second, etc. may be used herein to
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`describe various elements, these elements should not be limited by these terms. These terms
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`are only usedto distinguish one element from another element. Thus,a first element discussed
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`below could be termed a second element without departing from the teachings of the disclosure.
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`Asused herein, the singular forms, “a,” “an,” and “the” are intendedto include the plural forms
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`as well, unless the context clearly indicates otherwise.
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`ce
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`[0046] Spatially relative terms, such as “beneath,” “below,” “lower,”
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`“above,”
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`“upper,” and
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`the like, may be used herein for ease of description to describe one element or feature's
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`relationship to another element(s) or feature(s) as illustrated in the figures.
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`[0047] It will be further understood that the terms “includes” and/or “including” when used in
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`this specification, specify the presence of stated features, integers, steps, operations, elements,
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`and/or components, but do not preclude the presence or addition of one or more other features,
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`integers, steps, operations, elements, components, and/or groups thereof.
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`[0048] “About,” “substantially,” or “approximately” as used herein is inclusive of the stated
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`value and means within an acceptable range of deviation for the particular value as determined
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`by one of ordinary skill in the art, considering the measurement in question and the error
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`associated with measurementofthe particular quantity (i.e., the limitations of the measurement
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`system). For example, “about” may mean within one or morestandard deviations, or within +
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`30%, 20%, 10%, 5% of the stated value.
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`[0049] Unless otherwise defined, all terms (including technical and scientific terms) used
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`herein have the same meaning as commonly understood by one of ordinary skill in the art to
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`whichthis disclosure belongs. It will be further understood that terms, such as those defined
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`in commonly used dictionaries, should be interpreted as having a meaning that is consistent
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`with their meaning in the context of the relevant art and will not be interpreted in an idealized
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`or overly formal sense unless expressly so defined herein.
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`[0050] Hereinafter,
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`the disclosure will be explained in detail with reference to the
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`accompanying drawings.
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`[0051] FIG. 1 is a schematic perspective view showing an electronic device 1000 according to
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`an embodimentof the disclosure. FIG. 2A is an exploded schematic perspective view showing
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`the electronic device 1000 according to an embodimentof the disclosure. FIG. 2B is a block
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`diagram showing the electronic device 1000 according to an embodimentof the disclosure.
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`FIG. 3 is schematic diagram of an equivalent circuit diagram showing a pixel PX1j according
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`to an embodimentof the disclosure.
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`[0052] The electronic device 1000 may beadevice activated in responseto an electrical signal.
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`The electronic device 1000 may include various embodiments. For example, the electronic
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`device 1000 may include a tablet computer, a notebook computer, a computer, a smart
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`television, or the like. In an embodiment, a smartphonewill be described as an example of the
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`electronic device 1000.
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`[0053] The electronic device 1000 may display an image IM through a display surface FS,
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`whichis substantially parallel to a plane formed by axesin the first direction DR1 and the
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`second direction DR2. The display surface FS may face toward the third direction DR3. The
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`display surface FS, through which the image IM is displayed, may correspondto a front surface
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`of the electronic device 1000 and a front surface FS of a window 100.
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`[0054] Hereinafter, the display surface and the front surface of the electronic device 1000 and
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`the front surface of the window 100 will be assigned with the same reference numeral. The
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`
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`image IM mayincludeastill image as well as a video. FIG. 1 shows a clock widget and
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`application icons as examples of the image IM.
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`[0055] In an embodiment, front (or upper) and rear (or lower) surfaces of each memberof the
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`electronic device 1000 may be defined with respect to a direction in which the image IM is
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`displayed. The front and rear surfaces may be opposite to each otherin the third direction DR3,
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`and a normalline direction of each of the front and rear surfaces may be substantially parallel
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`to the third direction DR3. A separation distance between the front and rear surfaces may
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`correspondto a thickness in the third direction DR3 of a display module 300 (refer to FIG.
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`2A).
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`[0056] According to an embodiment, the electronic device 1000 may sense a user input TC
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`applied thereto from the outside. The user input TC may include various types of external
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`inputs, such as a part of a user's body, light, heat, or pressure. In an embodiment, the user input
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`TC is shownas a handof the user applied to the front surface of the electronic device 1000,
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`however, this is merely an example. As described above, the user input TC may be provided
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`in various forms. The electronic device 1000 may sense the user input TC applied to a side or
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`rear surface of the electronic device 1000 depending onits structure, however, it should not be
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`limited to a specific embodiment.
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`[0057] In an embodiment, a first area Al may be defined in a transmission area TA. Thefirst
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`area Al maybe anarea of the display module 300overlapping an electronic module 400. In
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`FIG. 2A, the first area Al is illustrated as a circular shape disposed at an upper right end,
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`however, the first area Al should not be limited thereto. According to an embodiment,thefirst
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`area Al may havevarious shapesin the display module 300 depending on the shape of the
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`electronic modules 400, and the numberoffirst areas Al may vary according to the number of
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`electronic modules 400. However, the embodiments should not be particularly limited.
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`[0058] The electronic device 1000 may receive external signals required for the electronic
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`module 400 via the first area Al or may provide output signals from the electronic module 400
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`to the outside via the first area Al. According to the disclosure, as the first area Al is defined
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`to overlap the transmission area TA,the size of a bezel area BZA defining (or surrounding)
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`the transmission area TA may decrease. This will be described in detail below.
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`[0059] Referring to FIG. 2A, the electronic device 1000 may include the window 100, a
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`housing 200, the display module 300, and the electronic module 400. In an embodiment, the
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`window 100 and the housing 200 may be coupled to each other to provide an exterior of the
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`electronic device 1000.
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`[0060] The window 100 may include an insulating panel. For example, the window 100 may
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`include a glass material, a plastic material, or a combination thereof.
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`[0061] The front surface FS of the window 100 may define the front surface of the electronic
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`device 1000 as described above. The transmission area TA may be an optically transparentarea.
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`For example, the transmission area TA maybe an area havinga visible light transmittance of
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`about 90% or more.
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`[0062] The bezel area BZA may be an area having a relatively lower transmittance as
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`compared with the transmission area TA. The bezel area BZA may define a shape of the
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`transmission area TA. The bezel area BZA may be disposed adjacent to the transmission area
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`TA and may surroundthe transmission area TA.
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`[0063] The bezel area BZA may have a selected color. The bezel area BZA may be defined by
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`a bezel layer provided separately from a transparent substrate defining the transmission area
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`TA or may be defined by an ink layer that may be inserted into the transparent substrate, or
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`may be formed by coloring the transparent substrate.
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`[0064] The display module 300 may include an electronic panel EP anda driving circuit IC.
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`[0065] The electronic panel EP may display the image IM and maysense the user input TC
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`(refer to FIG. 1). The electronic panel EP may include a front surface IS in which a display
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`area DA and anon-display area NDA are defined. The display area DA may be an area activated
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`in response to an electrical signal.
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`[0066] In an embodiment, the display area DA may be an area where image IM is displayed,
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`and user input TC is sensed. The display area DA may be an area in which pixels PX,
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`described below, are arranged.
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`[0067] The transmission area TA may overlap at least the display area DA. For example, the
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`transmission area TA mayoverlapall or at least a portion of the display area DA. Accordingly,
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`the user may view the image IM and may provide the user input TC via the transmission area
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`TA, however, the embodiments are not limited thereto. In other examples, the area through
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`which the image IM is displayed and the area through whichthe external input TC is sensed
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`may be separated from each otherin the display area DA.
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`[0068] The non-display area NDA may be covered by the bezel area BZA. The non-display
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`area NDA maybe disposed adjacent to the display area DA. The non-display area NDA may
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`surround the display area DA. The non-display area NDA may be an area through whichthe
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`image IM is not displayed. A driving circuit or a driving line to drive the display area DA may
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`be disposed in the non-display area NDA.
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`[0069] In an embodiment, the electronic panel EP may be assembledin a flat state in which
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`the display area DA and the non-display area NDA face the window 100, however,
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`the
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`embodiments are not limited thereto. In other examples, a portion of the non-display area NDA
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`of the electronic panel EP may be curved. The portion of the non-display area NDA may be
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`bent toward the rear surface of the electronic device 1000, and thus, the bezel area BZA in the
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`front surface of the electronic device 1000 may be reduced. According to an embodiment, the
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`electronic panel EP may be assembled while a portion of the display area DA is in a curved
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`state. Further,
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`the non-display area NDA may be omitted from the electronic panel EP
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`according to an embodimentofthe disclosure.
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`[0070] The display area DA mayincludethe first area Al and a second area A2. Thefirst area
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`Al may havea relatively higher light transmittance than that of the second area A2. Thefirst
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`area Al may be defined as an area of the display module 300, which overlaps an area where
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`the electronic module 400 is disposed in the housing 200. In an embodiment, thefirst area Al
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`is shownas having a circular shape, however, the embodimentsare not limited thereto. In other
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`examples, the first area Al may have a variety of shapes, such as a polygonal shape, an oval
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`shape, a shape with at least one curvedline, or other shape.
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`[0071] The second area A2 may be defined adjacent to the first area Al. In an embodiment,
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`the second area A2 may surroundtheentire of the first area Al, however, the embodiments are
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`not limited thereto. In other examples, the second area A2 may be defined adjacent to only a
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`portion of an edge ofthe first area Al and should notbe particularly limited.
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`[0072] Referring to FIG. 2B, the electronic panel EP of the display module 300 mayinclude a
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`display panel 310 and an input sensor 320. The display panel 310 may include components to
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`generate the image IM (refer to FIG. 1). The image IM generatedbythe display panel 310 may
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`be displayed on the display surface IS (refer to FIG. 2A) through the transmission area TA
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`(refer to FIG. 2A) and viewedby the user.
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`[0073] The input sensor 320 may sense the user input TC (refer to FIG. 1) applied thereto from
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`the outside. As described above, the input sensor 320 may sense the user input TC applied to
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`the window 100 (refer to FIG.1).
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`[0074] Referring to FIG. 2A, the electronic panel EP may include a flat portion FN and a
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`bending portion BN. The flat portion FN may be assembledto be substantially parallel to a
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`plane defined by axesin the first direction DR1 andin the second direction DR2. The display
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`area DA maybe definedin the flat portion FN.
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`[0075] The bending portion BN may extend and may be bent from the flat portion FN. The
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`bending portion BN may be assembledto be bent from the flat portion FN and disposed on a
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`rear side of the flat portion FN. Since the bending portion BN overlaps the flat portion FN in
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`a plane when being assembled, the bezel area BZA ofthe electronic device 1000 may decrease.
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`In other examples, and the bending portion BN may be omitted from the electronic panel EP.
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`[0076] The driving circuit IC may be mounted on the bending portion BN. The driving circuit
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`IC may be provided as a chip. However, the embodiments are not limited thereto. In other
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`examples, the driving circuit IC may be electrically connected to the electronic panel EP via a
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`flexible circuit board after being provided to a separate circuit board.
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`[0077] The driving circuit IC may be electrically connected to the display area DA and may
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`apply electrical signals to the display area DA. For example, the driving circuit IC may include
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`a data driving circuit and may apply data signals to pixels arranged in the display area DA.
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`According to an embodiment, the driving circuit IC may include a touch driving circuit and
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`may be electrically connected to the input sensor disposed in the display area DA. In other
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`examples, the driving circuit IC may include additional circuits and may apply a variety of
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`electrical signals to the display area DA, andare notparticularly limited.
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`[0078] Although not shown in figures, the electronic device 1000 may further include a main
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`circuit board electrically connected to the electronic panel EP and the driving circuit IC. The
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`main circuit board may include various driving circuits that drive the electronic panel EP as
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`well as a connector to provide power. The main circuit board may be a rigid printed circuit
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`board (PCB), however, in other examples, the main circuit board may be a flexible circuit
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`board, andis not particularly limited.
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`[0079] The electronic module 400 may be disposed under the display module 300. The
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`electronic module 400 may receive the external inputvia the first area Al or may output signals
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`via the first area Al. According to the disclosure, as the first area Al havingarelatively high
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`transmittance is defined in the display area DA,the electronic module 400 maybe disposed to
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`overlap the display area DA. Accordingly, an increase in size of the bezel area BZA (and an
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`increase in the size of the non-display area NDA) may be prevented.
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`[0080] Referring to FIG. 2B, the electronic device 1000 may include the display module 300,
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`a power supply module PM,a first electronic module EM1, and a secondelectronic module
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`EM2. The display module 300, the power supply module PM,thefirst electronic module EM1,
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`and the second electronic module EM2 maybe electrically connected to each other.
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`[0081] The power supply module PM may supply power required to operate the electronic
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`device 1000. The power supply module PM may include a battery module.
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`[0082] The first electronic module EM1 and the second electronic module EM2 mayinclude
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`various functional modules to operate the electronic device 1000. Thefirst electronic module
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`EM1 may be mounteddirectly on a mother boardthat is electrically connectedto the electronic
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`panel EP or maybe electrically connected to the mother board via a connector (not shown)
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`after being mounted on a separate substrate.
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`[0083] The first electronic module EM1 may include a control module CM, a wireless
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`communication module TM, an image input module IIM, an audio input module AIM, a
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`memory MM,and an external
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`interface IF. Some modules among the modules may be
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`electrically connected to the mother board through a flexible circuit board without being
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`mounted on the mother board.
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`[0084] The control module CM may control the overall operation of the electronic device 1000.
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`The control module CM maybe, butnot limited to, a microprocessor. For example, the control
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`module CM mayactivate or deactivate the display module 300. The control module CM may
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`control other modules, such as the image input module IIM, the audio input module AIM,or
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`the like, based on a touch signal provided from the display module 300.
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`[0085] The wireless communication module TM may transmit/receive a wireless signal
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`to/from other terminals using a Bluetooth or Wi-Fi link. The wireless communication module
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`TM may transmit/receive a voice signal using a general communication line. The wireless
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`communication module TM mayinclude a transmitter TM1 that modulates a signal to be
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`transmitted and transmits the modulated signal and a receiver TM2 that demodulates the
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`received signal.
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`[0086] The image input module ITM may process an imagesignal and may convert the image
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`signal into image data that may be displayed through the display module 300. The audio input
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`module AIM mayreceive an external sound signal through a microphonein a record mode or
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`a voice recognition mode and may convert the external sound signalto electrical voice data.
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`[0087] The external interface IF may serve as an interface between the control module CM
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`and external devices, such as an external charger, a wired/wireless data port, a card sockete.g.,
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`a memory card and a SIM/UIMcard,etc.
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`[0088] The second electronic module EM2 mayinclude an audio output module AOM,a light
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`emitting module LM, a light receiving module LRM, and a camera module CMM. The
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`components may be mounted directly on the mother board, may be electrically connected to
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`the electronic panel EP via a connector (not shown) after being mounted on a separate substrate,
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`or maybe electrically connected to the first electronic module EM1.
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`[0089] The audio output module AOM mayconvert the sound data provided from the wireless
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`communication module TM or the sound data stored in the memory MM and may output the
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`converted sound data to the outside.
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`[0090] The light emitting module LM maygenerate a light and may outputthe light. The light
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`emitting module LM may emit an infrared ray. The light emitting module LM mayinclude an
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`LEDelement. The light receiving module LRM maysensethe infrared ray. The light receiving
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`module LRM maybe activated when an infrared ray having a selected level or higheris sensed.
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`The light receiving module LRM mayinclude a complementary metal oxide semiconductor
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`(CMOS) sensor. The infrared ray generated by and output from the light emitting module LM
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`may be reflected by an external object, e.g., a user’s finger or face, and t