(19) Japan Patent Office (JP)
`
`(12) Japanese Unexamined Patent
`Application Publication (A)
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`
`
`
`(11) Japanese Unexamined Patent
`Application Publication Number
`H11-16683
`(43) Publication date: January 22, 1999
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`
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`Identification codes
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`(51) Int. Cl.6
` H05B 37/02
` F21S 1/02
` G09F 13/20
`//F21P 3/00
`
` FI
`H05B 37/02
`J
`F21S 1/02
`M
`G09F 13/20
`G
`F21P 3/00
`A
`Request for examination: Not yet requested Number of claims: 3 FD (Total of 8 pages)
`
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`(21) Application number
`
`
`Japanese Patent
`Application H9-180291
`
`(71) Applicant
`
`(22) Date of application
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`June 23, 1997
`
`(71) Applicant
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`(72) Inventor
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`(72) Inventor
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`(74) Agent
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`596080813
`Masanori MINATO
`3-6-26 Wakakusa, Utsunomiya-shi, Tochigi
`397019807
`Satoshi TAMAOKI
`4-7-5 Yagiyama-Minami, Taihaku-ku, Sendai-shi,
`Miyagi
`Masanori MINATO
`3-6-26 Wakakusa, Utsunomiya-shi, Tochigi
`Satoshi TAMAOKI
`4-7-5 Yagiyama-Minami, Taihaku-ku, Sendai-shi,
`Miyagi
`Patent Attorney Kazutoshi NAKAMURA
`
`
`(54) [TITLE OF THE INVENTION] LIGHT-EMITTING DISPLAY DEVICE
`
`(57) [ABSTRACT]
`[PROBLEM] To provide a light-emitting display device
`which is compatible with a conventional electric bulb set,
`can be driven easily by AC 100 V, can save electric power,
`has a long life, and can easily change the brightness or
`color of emitted light.
`[MEANS FOR SOLVING] Two light-emitting diodes with
`different luminescent colors are connected in antiparallel ‒
`that is, the directions of the two light-emitting diodes are
`reversed. A basic unit is formed by connecting the anodes
`and cathodes of the respective light-emitting diodes, and
`the light-emitting diodes are lit by a commercial power
`supply. A light-emitting display device is formed by
`connecting a plurality of such basic units in series.
`
`
`
`
`
`0001
`
`Santa's Best and Polygroup
`Exhibit 1007
`IPR2016-01066
`U.S. Pat. No. 6,285,140
`
`

`
`[SCOPE OF THE PATENT CLAIMS]
`[CLAIM 1] A light-emitting display device comprising a
`first light-emitting diode having first luminescent color and
`a second light-emitting diode having a second luminescent
`color, the first and second light-emitting diodes being
`connected in antiparallel; the first light-emitting diode
`being driven at the time of one polarity of an AC power
`supply; and the second light-emitting diode being driven at
`the time of another polarity of the AC power supply.
`[CLAIM 2] A light-emitting display device comprising a
`plurality of light-emitting units connected in series, the
`light-emitting units being formed by connecting, in three-
`stage series, units comprising a first light-emitting diode
`having a first luminescent color and a second light-emitting
`diode having a second luminescent color connected in
`antiparallel; the device being driven by a commercial AC
`power supply.
`[CLAIM 3] The light-emitting display device according to
`claim 1 or 2 having a control circuit for controlling a
`voltage, current, or conduction angle of at least one polarity
`of the commercial AC power supply.
`[DETAILED DESCRIPTION OF THE INVENTION]
`[0001] The present invention relates to a light-emitting
`display device. More particularly, the present invention
`relates to a light-emitting display device which can be used
`for electric decoration used to decorate Christmas trees or
`street trees, electric decoration provided on store signs, or
`danger marking for road construction or the like.
`[0002]
`formed by
`[PRIOR ART] Conventionally, a device
`connecting multiple electric bulbs in series or in parallel
`has been used as electric decoration such as electric
`decoration for small household Christmas trees as well as
`electric decoration for store signs or the like and danger
`marking lights for construction sites. In addition, lately
`there are many places where rows of trees along streets are
`decorated with electric bulbs in order to improve the night
`view in cities or for Christmas or year-end events.
`[0003] FIG. 10 illustrates an example of a electric bulb set
`used for electric decoration such as a Christmas tree.
`Symbols L101 to L150 are ordinary small electric bulbs,
`wherein two chains, comprising a chain in which 25
`electric bulbs from electric bulb L101 to L125 are
`connected in series and a chain in which 25 electric bulbs
`from electric bulb L126 to L150 are connected in series, are
`connected in parallel to form one set. Symbol P111 in the
`drawing is a plug connected to an AC 100 V commercial
`power supply. A 4 V voltage is applied to each of the
`electric bulbs by applying AC 100 V to terminals 112 and
`113 of the plug so as to light the bulbs.
`[0004] In addition, the electric bulbs can be made to blink
`at constant intervals by using electric bulbs with a bimetal
`strip for any one of the electric bulbs ‒ for example, L125
`and L150 ‒ of the chains of the electric bulb set.
`[0005] By decorating a tree by connecting one or a plurality
`of the electric bulb sets in parallel, a Christmas tree, for
`example, is formed. In households, various colors can be
`expressed by adding color to the glass itself of the electric
`bulbs or adding a colored resin-based cover. In order to
`prevent confusion with traffic signals outdoors, electric
`
`Japanese Unexamined Patent Application Publication H11-16683
`(2)
`
`bulbs are often only lit continuously in a color close to
`orange. Such a electric bulb set can be used easily and is
`inexpensive since it can be lit by simply connecting directly
`to an AC 100 V power supply.
`[0006] However, the average life of a electric bulb used for
`the purposes described above is only about 1,000 hours,
`and when used for a long period of time, there are electric
`bulbs that do not light due to a broken filament. When 25
`electric bulbs are connected in series in one chain, as in
`FIG. 10, all 25 of the electric bulbs simultaneously fail to
`light when there is even one electric bulb with a broken
`filament. When attempting to repair the chain by replacing
`a electric bulb, it is practically impossible to distinguish a
`electric bulb that is broken from one that is not from its
`appearance, so it takes a large amount of effort and time to
`find and replace a broken electric bulb.
`[0007] On the other hand, in comparison to electric bulbs,
`light-emitting diodes have higher efficiency, do not
`generate heat, and have a longer life, so they are typically
`used for display devices. When light-emitting diodes are
`used for the electric decoration described above, not only is
`the power consumption low, but the life is also extremely
`long, so the need to replace the bulbs is practically
`eliminated. Moreover, since the diodes are placed in a
`transparent resin-based package, there is no risk of the glass
`breaking, as in the case of electric bulbs, which makes the
`diodes particularly suitable for outdoor use.
`[0008] Configurations in which light-emitting diodes are
`arranged in a matrix have recently been used in direction
`boards and the like for roads or train stations. FIG. 11
`illustrates one segment of a matrix of light-emitting diodes,
`wherein D201 is a red light-emitting diode and D202 is a
`green light-emitting diode, for example. The cathode of the
`red light-emitting diode D201 and the cathode of the green
`light-emitting diode D202 are connected to form a common
`electrode terminal 211. An anode terminal 212 of the red
`light-emitting diode D201 and an anode terminal 213 of the
`green light-emitting diode D202 are independent electrode
`terminals which are housed in a single transparent resin-
`based package. In such a segment, the diodes are lit red
`when a DC voltage of approximately 1.5 to 2 V is applied
`between the anode terminal 212 of the red light-emitting
`diode D201 and the common electrode terminal 211, green
`when a DC voltage of approximately 1.5 to 2 V is applied
`between the anode terminal 213 of the green light-emitting
`diode D202 and the common electrode terminal 211, and
`orange when a voltage is applied to both simultaneously. A
`DC current of approximately 1 to 100 mA is applied.
`[0009] FIG. 12 illustrates a matrix of m×n of the light-
`emitting diodes illustrated in FIG. 11. D211 to D2mn are
`light-emitting diodes, C21 to C2m are control lines of
`common electrodes of the cathodes, R21 to R2n are control
`lines of the anodes of the red light-emitting diodes, and
`G21 to G2n are control lines of the anodes of the green
`light-emitting diodes. By selecting given rows and columns
`of the matrix with a control circuit and applying a current,
`it is possible to display characters of any three colors of
`red, green, and orange.
`[0010] However, in order to use such light-emitting diodes
`for electric decoration, even if a complex control circuit for
`
`
`
`0002
`
`

`
`driving the matrix is made unnecessary, a total of at least
`three signal lines including two signal lines for red and
`green and a common ground line are required to drive one
`chain of light-emitting diodes. Therefore, the diodes cannot
`be easily connected to an AC 100 V power supply and used
`in the same manner as a conventional electric bulb set.
`[0011]
`[PROBLEM TO BE SOLVED BY THE INVENTION] An object of
`the present invention is to provide a light-emitting display
`device which is compatible with a conventional electric
`bulb set and can be easily driven by AC 100 V.
`[0012] Another object of the present invention is to provide
`a light-emitting display device which saves electric power
`and has a long life. Another object of the present invention
`is to provide a light-emitting display device with which the
`brightness or color of emitted light can be changed easily.
`[0013] Yet another object of the present invention is to
`provide a control device suitable for the light-emitting
`display device described above.
`[0014]
`[MEANS FOR SOLVING THE PROBLEM] In the light-emitting
`display device of the present invention, the direction of two
`light-emitting diodes with different luminescent colors are
`reversed, and a basic unit is formed by connecting the
`anodes and cathodes of the respective light-emitting diodes.
`An AC voltage for driving the device is set by connecting a
`plurality of such basic units in series. That is, the voltage is
`aligned with the driving voltage of the electric bulbs
`requiring compatibility. As a result, the device can be lit
`with a conventional commercial power supply ‒ that is, AC
`100 V.
`[0015] The brightness or color of the light-emitting diodes
`is changed by independently controlling the voltage,
`current, or conduction angle with respect to the positive
`half-cycle and the negative half-cycle of one AC cycle. If
`no particular control is administered, the two light-emitting
`diodes will emit light simultaneously, resulting in a mixed
`color of both light-emitting diodes. In addition, by using
`either of the AC polarities, it is possible to emit light of
`either one of the colors.
`[0016]
`[EMBODIMENT OF THE INVENTION] FIG. 1 illustrates a basic
`unit of the light-emitting display device of the present
`invention. In FIG. 1(a), a red light-emitting diode D11 and
`a green light-emitting diode D12 are connected in parallel
`in opposite directions. That is, the anode of the red light-
`emitting diode D11 and the cathode of the green light-
`emitting diode D12, and the cathode of the red light-
`emitting diode D11 and the anode of the green light-
`emitting diode D12 are respectively connected to one
`another to form two electrodes or terminals 13 and 14.
`[0017] When an AC voltage of 1.5 to 2 V is applied
`between the electrodes 13 and 14 as a peak value, the red
`light-emitting diode D11 and the green light-emitting diode
`D12 are lit so that the light appears orange. In addition,
`using a thyristor or the like, it is possible to light only the
`red light-emitting diode D11 by applying a voltage for only
`the positive half-cycle of one AC cycle, and it is possible to
`light only the green light-emitting diode D12 by applying a
`voltage for only the negative half-cycle.
`
`Japanese Unexamined Patent Application Publication H11-16683
`(3)
`
`[0018] The current flowing through the light-emitting
`diodes is ordinarily preferably set to approximately 1 to
`100 mA in order to suppress the thermal breakdown
`thereof. Therefore, resistors may be connected in series to
`the
`light-emitting diodes. FIG. 1(b)
`illustrates a
`configuration in which a resistor R11 and a resistor R12 are
`respectively connected between the anode of the red light-
`emitting diode D11 and the electrode 13 and between the
`cathode of the green light-emitting diode D12 and the
`electrode 13. The resistances of the inserted resistors are set
`so that the voltage drop at both ends of the resistors is
`approximately 0.1 to 1 V when a desired current flows
`through the device. In addition, the respective resistors may
`also be connected between the cathode of the red light-
`emitting diode D11 and the electrode 14 and between the
`anode of the green light-emitting diode D12 and the
`electrode 14.
`[0019] FIG. 1(c) illustrates an example in which a resistor
`R13 is connected in series on the electrode 13 side for both
`the light-emitting diodes D11 and D12. A constant-current
`element such as a field effect transistor or a bipolar
`transistor may also be inserted in series instead of a
`resistor.
`[0020] FIG. 1(d) illustrates an example in which constant-
`voltage elements T11 and T12 comprising field effect
`transistors are connected in series to the anode sides of the
`light-emitting diodes D11 and D12 respectively connected
`in antiparallel.
`[0021] The AC voltage for driving the light-emitting
`display device of the present invention can be changed
`based on how many stages of the basic units illustrated in
`FIG. 1 are connected.
`[0022] FIG. 2 illustrates a light-emitting unit in which the
`basic units illustrated in FIG. 1 are connected in three-stage
`series, wherein D21, D23, and D25 are red light-emitting
`diodes, and D22, D24, and D26 are green light-emitting
`diodes. When driven by applying an AC voltage with a
`peak value of 4.5 to 6 V between the electrodes or
`terminals 21 and 22 of the basic units, the diodes are lit
`with an orange color relatively close to the color of an
`electric bulb. When a reverse voltage is applied to either of
`the light-emitting diodes, a forward voltage is applied to the
`other light-emitting diodes, so there is no need for a bleeder
`resistor for uniformly distributing the reverse voltage to
`each of the light-emitting diodes. Further, as described
`above, when only one of the polarities of the AC voltage is
`used, it is possible to light either only red or only green
`diodes. Ordinarily, a transparent or translucent resin-based
`package having optical directivity in one direction is used
`as a package for the light-emitting diodes. However, in a
`light-emitting display device for electric decoration, it is
`preferable for the emitted light to be visible from various
`directions. Therefore, a polyhedral reflective plate which
`reflects light in various directions may be provided inside a
`resin mold.
`[0023] FIG. 3 illustrates a resin-molded light-emitting unit.
`FIG. 3(a) is an example in which a polyhedral reflective
`plate is provided inside a resin mold, and FIG. 3(b) is an
`example in which a polyhedral mount part is used.
`[0024] In FIG. 3(a), 31 is a mount part on which each light-
`
`
`
`0003
`
`

`
`emitting diode is arranged in the same plane, 32 is a resin
`mold, 33 is a polyhedral reflective plate, 34 is an opening
`part of the reflective plate, and the arrows indicate the
`directions in which light advances. Each light-emitting
`diode is connected to a power supply via electrode
`terminals 21 and 22 in the same manner as in FIG. 2. In
`FIG. 3(b), 31 is a polyhedral mount part, and each light-
`emitting diode is disposed on each surface of the mount
`part. In either case, by using the same connection port
`shape as that of an electric bulb in the resin molds, the
`diodes can be used directly by simply exchanging them
`with the electric bulbs of a conventional electric bulb set.
`[0025] In FIGS. 3(a) and (b), a light-emitting diode chip is
`used for each light-emitting diode, but it is also possible to
`configure a light-emitting unit by using commercially
`available resin-sealed
`light-emitting diodes as
`light-
`emitting diodes, providing the light-emitting diodes on a
`substrate such as a printed wiring board, and combining the
`diodes with the sockets of a conventional electric bulb set.
`[0026] FIG. 4 illustrates a light-emitting display device in
`which 25 of the light-emitting units illustrated in FIG. 2 are
`connected in series, wherein the device is driven by AC
`100 V, as in the case of a conventional electric bulb set.
`Symbols D401 to D450 are the light-emitting units. Two
`chains, comprising a chain in which 25 light-emitting units
`from D401 to D425 are connected in series and a chain in
`which 25 light-emitting units from D426 to D450 are
`connected in series, are connected in parallel, and a 4 V
`voltage is applied to each light-emitting unit in the same
`manner as in the aforementioned electric bulb set so as to
`form one set. Symbol P41 in the drawing is a plug
`connected to an AC 100 V commercial power supply.
`When the light-emitting display device is driven by AC 100
`V, it is lit orange, but by using one of the polarities of AC
`100 V, it is possible to light the device either red or green.
`This color can be controlled based on which polarity of one
`AC cycle is used, which eliminates the need for a complex
`circuit or multiple signal lines.
`[0027] FIG. 5 illustrates a circuit for controlling the
`luminescent color of the light-emitting display device, and
`FIG. 5(a) is a control circuit for lighting the device either
`red or green. Symbol D51 is a rectification diode having a
`reverse voltage resistance of at least 100 V, 51 and 52 are
`AC voltage input terminals for the control circuit, and 53
`and 54 are output terminals of the control circuit. By
`connecting one diode D51 in series, it is possible to
`determine the luminescent color of the light-emitting
`diodes based on the orientation of the diodes.
`[0028] As illustrated in FIG. 5(b), the lit color can be
`changed easily by changing the connection state of the
`rectification diode D51 with a switch S51. By using such a
`control circuit, the device can be used not only for electric
`decoration, but also for various applications such as
`switching display for "enter" and "do not enter" or
`switching display for "safe" and "dangerous" in road
`construction or the like, for example.
`[0029] As illustrated in FIG. 5(c), rectification diodes D51
`
`
`Japanese Unexamined Patent Application Publication H11-16683
`(4)
`
`and D52 are connected in two different directions, and the
`diodes are respectively shorted by switches S51 and S52.
`By shorting both diodes with the switches, the light-
`emitting display device is driven by an AC voltage and is
`therefore lit orange. The device can also be lit red or green
`by shorting either one of the diodes.
`[0030] FIG. 5(d) illustrates a circuit for controlling the
`luminescent color of the light-emitting display device using
`a control circuit of an active device. For example, T51 is a
`thyristor for controlling the positive half-cycle, T52 is a
`thyristor for controlling the negative half-cycle, C51 is a
`power supply part, C52 is a gate control part, and C53 is a
`control signal generation part. By using a timer circuit as a
`control signal generation part and controlling
`the
`conduction and non-conduction of each
`thyristor
`in
`accordance with the time, it is possible to control the lit
`color based on the time. For example, the device can be lit
`with any pattern such as orange blinking or a repeating
`pattern from orange to red, green, and then extinguished
`lights. Of course, by controlling the conduction angle of the
`half-cycles of different polarities of the AC voltage with
`the thyristors T51 and T52, the brightness of each light-
`emitting diode can be changed, and colors between red and
`green can also be changed continuously.
`[0031] Further, by using a vibration or shaking detection
`circuit as a control signal generation part, it is possible to
`form an electric decoration device in which the luminescent
`color changes as vibration due to wind is detected. The
`control signal generation part may also be a temperature
`detection circuit, a humidity detection circuit, or an air
`pressure detection circuit.
`[0032] A thyristor is used as an active device in the
`example described above, but an electrostatic induction
`thyristor, a gate turnoff thyristor (GTO), an insulated gate
`bipolar transistor (IGBT), a triac, or the like may also be
`used.
`[0033] FIG. 6 illustrates an example in which one control
`circuit described above is coupled with the light-emitting
`display device illustrated in FIG. 4, wherein C61 is a
`control circuit. This control circuit is connected between
`the plug P41 connected to an AC 100 V commercial power
`supply and the light-emitting display device so that the
`luminescent color or emission intensity are controlled.
`[0034] FIG. 7 illustrates an example in which the control
`circuit described above is incorporated into an AC 100 V
`relay connector. In FIG. 7(a), C71 is a control circuit part,
`P71 is a plug that can be plugged into an AC 100 V outlet,
`and P72 is a female plug into which an AC 100 V plug can
`be inserted. A relay connector is formed by P71, C71, and
`P72. In addition, P73 and U71 are the plug and light-
`emitting display device illustrated in FIG. 4. With such a
`configuration, it is possible to insert, remove, or replace a
`control circuit as necessary. For example, when the control
`circuit C71 is the circuit illustrated in FIG. 5(a), it is
`possible to change the luminescent color based on the
`manner in which P71 or P72 is connected.
`[0035] In addition, it is also possible to use a plug socket
`
`
`
`0004
`
`

`
`P75 into which a plurality of plugs can be inserted so as to
`connect a plurality of light-emitting display devices U71
`and U72 to one control circuit part via plugs 73 and 74, as
`illustrated in FIG. 7(b), or to connect a relay connector
`having control circuit parts C71 and C72 with the same or
`different functions to a plurality of light-emitting display
`devices U71 and U72, as illustrated in FIG. 7(c).
`[0036] Further, even when a control circuit is incorporated
`into each of a plurality of light-emitting display devices, it
`is also possible to systematically control all of the control
`circuits without newly using a signal line. In order to do so,
`a high-frequency thyristor control signal should be sent so
`as to be superimposed with AC 100 V, and a band-pass
`filter which detects specific high-frequency signals should
`be used as the control signal generation part of the light-
`emitting display device.
`[0037] FIG. 8 illustrates a block connection diagram of the
`control circuits for the light-emitting display devices
`described above, wherein 81 is an AC 100 V power supply,
`82 is a low-pass filter, 83 is a high-frequency control signal
`generation circuit, U81 to U86 are light-emitting display
`devices, and C81 to C86 are control circuits for the light-
`emitting display devices. The connections between each of
`the blocks are basically realized by only one pair of wires
`for transmitting a commercial AC voltage of 100 V.
`[0038] In the control signal generation circuit 83, a high-
`frequency signal having a voltage of 1 to 10 V at a
`frequency of 1 kHz to 100 kHz, for example, is generated
`as a control signal and superimposed with a commercial
`AC voltage of 100 V. This high-frequency signal should be
`a high-frequency signal having a frequency which can be
`divided with a band-pass filter or a high-pass filter and an
`amplitude sufficiently smaller than the amplitude of the AC
`voltage for driving. The low-pass filter 82 is for preventing
`the occurrence of problems due to the leaking of the
`superimposed high-frequency signal to the power supply
`side 81. Superimposed high-frequency signals are detected
`by band-pass filters inside the control circuits C81 to C86,
`and the light-emitting states of the light-emitting display
`devices U81 to U86 are controlled by control circuits C81
`to C86 such as those illustrated in FIG. 5(d).
`[0039] One method of control using the control circuits
`C81 to C86 is to control the lighting, extinguishing, or
`blinking of each of the light-emitting display devices using
`six control signals f1 to f6 so that the control circuit C81
`detects the control signal f1 and lights the light-emitting
`display device U81 and the control circuit C82 detects f2
`and lights the light-emitting display device U82. In this
`case, a plurality of control signals may be generated
`simultaneously.
`[0040] Another method of control using the control circuits
`C81 to C86 is to use two control signals f1 and f2 so that
`when the control circuits C81 to C86 detect the control
`signal f1, the positive half-cycle of the AC voltage is
`activated and the light-emitting display devices U81 to U86
`are made to emit red light, and when the control signal f2 is
`detected, the negative half-cycle of the AC voltage is
`activated so that the light-emitting display devices are made
`to emit green light. By generating the control signals f1 and
`f2 simultaneously, the light-emitting display devices U81
`and U86 emit orange light. The two control methods
`described above may also be combined.
`
`Japanese Unexamined Patent Application Publication H11-16683
`(5)
`
`[0041] FIG. 9 illustrates a mode in which a plurality of the
`light-emitting display devices of the present invention are
`connected in series. Each of D901 to D925 represents the
`light-emitting display device illustrated in FIG. 4, and 25 of
`these devices are connected in series. Symbol P91 is a plug
`connected to an AC 100 V commercial power supply, and
`P92 is a female plug into which an AC 100 V plug can be
`inserted.
`[0042] With such a configuration, in comparison to the
`connection method illustrated in FIG. 4, one extra wire 91
`is required, but exactly the required number of light-
`emitting display devices can be connected in series when
`executing this method. In this case, the respective light-
`emitting display devices are electrically connected in
`parallel.
`[0043] It is sufficient for the current applied to the light-
`emitting diodes to be approximately 10 mA per chain, so
`even if 100 light-emitting display devices are connected,
`the total current is approximately 1 A, which eliminates the
`need for thick wiring. In addition, the trouble associated
`with wire connection can be reduced when laying out
`electric decoration.
`[0044] To control the lighting state of each of the light-
`emitting display devices, the control circuit C91 is inserted,
`as illustrated in FIG. 9(b). By using a control method such
`as that illustrated in FIG. 8, the lighting state can be
`controlled in the same manner as when the devices are
`connected in parallel.
`[0045] A combination of red and green was described
`above as the combination of the colors of the light-emitting
`diodes, but the luminescent colors are not limited to these
`colors, and various combinations such as red and blue or
`green and blue are possible. In addition, only an AC
`voltage was described as the driving power supply, but the
`device may also be driven by controlling the height or
`width of pulses having positive and negative polarities with
`active devices.
`[0046]
`[EFFECT OF THE INVENTION] With the present invention, a
`light-emitting display device which is compatible with a
`conventional electric bulb set, can be driven easily with AC
`100V, can save electric power, has a long life, and does not
`newly require a signal line for control is obtained, and a
`control device capable of easily controlling the brightness
`or color of the emitted light of the light-emitting display
`device is also obtained.
`[BRIEF DESCRIPTION OF THE DRAWINGS]
`FIG. 1 illustrates a basic unit of the light-emitting display
`device of the present invention.
`FIG. 2 illustrates a light-emitting unit in which the basic
`units illustrated in FIG. 1 are connected in three-stage
`series.
`FIG. 3 illustrates a case in which the light-emitting unit
`illustrated in FIG. 2 is resin-molded.
`FIG. 4 illustrates a light-emitting display device in which
`25 of the light-emitting units illustrated in FIG. 3 are
`connected in series, wherein the device is driven by AC
`100 V in the same manner as in a conventional electric bulb
`set.
`FIG. 5 illustrates a control circuit for controlling the
`luminescent light of the light-emitting display device of the
`present invention.
`
`
`
`0005
`
`

`
`Japanese Unexamined Patent Application Publication H11-16683
`(6)
`
`FIG. 6 illustrates an example in which one control circuit is
`coupled with the light-emitting display device illustrated in
`FIG. 4.
`FIG. 7 illustrates an example in which a control circuit is
`incorporated into an AC 100 V relay connector.
`FIG. 8 illustrates a block connection diagram of the control
`circuits for the light-emitting display devices.
`FIG. 9 illustrates a mode in which a plurality of light-
`emitting display devices of the present invention are
`connected in series.
`FIG. 10 illustrates an electric bulb set used in conventional
`electric decoration.
`FIG. 11 illustrates one segment of a matrix of conventional
`light-emitting diodes.
`FIG. 12 illustrates a matrix of m×n of the light-emitting
`diodes illustrated in FIG. 11.
`[EXPLANATION OF SYMBOLS]
`D11...red light-emitting diode, D12...green light-emitting
`diode, T11, 12...constant-current elements, D21, D23,
`D25...red light-emitting diodes, D22, D24, D26...green
`
`[FIG. 1]
`
`light-emitting diodes, 31...mount part, 31-...polyhedral
`mount part, 32...resin mold, 33...polyhedral reflective plate,
`34...opening part of reflective plate, D401-D450...light-
`emitting units, P41...plug connected
`to DC 100 V
`commercial power supply, D51, D52...rectification diodes,
`S51, S52...switches, 51, 52...DC voltage input terminals for
`control circuit, 53, 54...output terminals of control circuit,
`C51...power
`supply part, C52...gate
`control part,
`C53...control signal generation part, T51, T52...thyristors,
`C61...control circuit part, C71...control circuit part,
`P71...plug which can be inserted into AC 100 V outlet,
`P72...female plug into which AC 100 V plug can be
`inserted, U71, U72...light-emitting display devices, 81...AC
`100 V power supply, 82...low-pass filter, 83...high-
`frequency
`control
`signal generation
`circuit, U81-
`U86...light-emitting display devices, C81-C86...control
`circuits
`for
`light-emitting display devices, D901-
`D925...light-emitting
`display
`devices,
`91...wiring,
`C91...control circuit
`
`
`
`[FIG. 2]
`
`[FIG. 3]
`
`[FIG. 11]
`
`
`
`
`
`0006
`
`

`
`Japanese Unexamined Patent Application Publication H11-16683
`(7)
`
`[FIG. 5]
`
`[FIG. 4]
`
`25 UNITS
`
`25 UNITS
`
`[FIG. 6]
`
`25 UNITS
`
`[FIG. 8]
`
`25 UNITS
`
`[FIG. 10]
`
`
`
`
`
`0007
`
`

`
`Japanese Unexamined Patent Application Publication H11-16683
`(8)
`
`[FIG. 7]
`
`[FIG. 9]
`
`[FIG. 12]
`
`25 UNITS
`
`25 UNITS
`
`
`
`0008
`
`

`
`FT
`
`fa
`
`TRANSPERFECT
`
`City of New York, State of New York, County of New York
`
`1, Wendy Poon, hereby certify that the document “JPH11l6683A” is to the best of my
`
`knowledge and belief, a true and accurate translation from Japanese into English.
`
`111/endy Poon
`
`Sworn to before me this
`
`April 25, 2016
`
`AL
`
`Signature, Notary Public
`
`Stamp, Notary Public
`
`LANGUAGE AND TECHNOLOGY SOLUTIONS FOR GLOBAL BUSINESS
`
`0009
`
`

`
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