Ufllted States Patent
`
`[19]
`
`[11] Patent Number:
`
`5,485,293
`
`Robinder
`
`[45] Date of Patent:
`
`Jan. 16, 1996
`
`lllllllllllllllllIllllllllllllllllllllllllIlllllllllllllllllllllllllllllll
`USO05485293A
`
`[54] LIQUID CRYSTAL DISPLAY INCLUDING
`COLOR TRIADS WITH SPLIT PIXELS
`
`[75]
`
`Inventor: Ronald C. Robinder, Albuquerque,
`NM.
`
`[73] Assigngc; Honeywell Inc" Minngapolis’ Mil-m_
`
`[21] Appl. No: 130,599
`
`Filfidi
`Sep. 29, 1993
`l23l
`Int. Cl.‘ ........................ G02F 1/1335; G02F l/1343
`[51]
`[52] U.S. Cl.
`359/59; 359/68; 345/88;
`_
`345/92
`[58] Field of Search ........................ .. 359/59, 68; 345/88,
`345/92
`
`Assistant Examiner—R0rl Trice
`Attorney, Agent, or Firm—l(enneth J. Johnson; Thomas J.
`Nikolai
`
`[57]
`
`ABSTRACT
`
`An active liquid crystal multi-colored display panel structure
`comprised of triangular triads of colored display pixels
`which are‘ rotated 90°. The displaycomprises a plurality of
`colored pixel electrodes arranged in rows and columns to
`form a matrix, wherein a row control line is provided every
`fife;‘;::5p?§vifffgieggcinfwg::i:::,:::,‘iee;(:3;g1d:sCc"$u:l
`3 mam-X of 720x720 pixel electrodes requires 43'O mw'
`control lines and 1030 column signal lines. The active liquid
`crystal display g[ruc1_ure can be directly driven by a video
`source such that 480 active lines of video signal can be
`mapped directly onto the 720 rows of pixel elements. A
`switching circuit is provided for controlling the arrangement
`of R, G and B pixel signals to the column source lines. The
`triads of pixel elements provided are rotated 90° to maintain
`high msolullon while allowing 3 slandard Video Signal to be
`directly mapped onto the display without additional elec-
`
`[56]
`
`4,745,406
`4,822,142
`4,969,718
`5,006,840
`5,151,689
`
`References Cited
`U_3_ PATENT DOCUMENTS
`‘
`5/1988 Hayashi et al.
`4/I989 Yasui
`11/1990 Noguchiet al.
`4/1991 Hamada etal,
`9/1992 Kabuto el al.
`
`......................... .. 359/68
`
`tronics such as a ping—pong memory.
`
`....................... .3. 359/68
`
`Primary Examiner—William L. Sikes
`
`8 Claims, 4 Drawing Sheets
`
`/20
`
`/./
`
`/42
`//
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`SEC v. Surpass Tech, IPR2015-00887
`SAMSUNG EX. 1029 - 1/11
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`

`
`U.S. Patent
`
`Jan. 16, 1996
`
`Sheet 1 of 4
`
`5,485,293
`
`-I (PRIOR ART)
`
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`

`
`U.S. Patent
`
`Jan. 16, 1996
`
`Sheet 2 of 4
`
`5,485,293
`
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`

`
`U.S. Patent
`
`Jan. 16, 1996
`
`Sheet 3 of 4
`
`5,485,293
`
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`

`
`U.S. Patent
`
`Jan. 16, 1996
`
`Sheet 4 of 4
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`5,485,293
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`SEC v. Surpass Tech, IPR2015-00887
`SAMSUNG EX. 1029 - 5/11
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`

`
`1
`LIQUID CRYSTAL DISPLAY INCLUDING
`COLOR TRIADS WITH SPLIT PIXELS
`
`BACKGROUND OF THE INVENTION
`
`2
`which permits 480 scan lines to be mapped directly onto 720
`rows of pixel dots while retaining the nonnal scanning
`sense.
`
`5,485,293
`
`l. Field of the Invention
`
`5
`
`It is a further object of the present invention to provide a
`liquid crystal multi—colored display panel structure which is
`composed of a plurality of triangular triads of multi—colored
`display pixel electrodes to ensure a high quality picture with
`a high resolution.
`It is still yet a further object of the present invention to
`,d
`1,
`.d
`I
`1
`,
`1
`d d.
`1
`l
`pm,“ ‘rja “ii” Crysta mu 9'60 Ore
`‘Sp 33' pa“? structure
`which incorporates a practical amount of scanning control
`lines and column signal lines, and wherein the colored pixel
`elements are of an acceptable size to provide high resolution
`yet which can be easily marlufaCliircri_
`It is still yet another object of the present invention to
`provide a liquid crystal multi—colored display panel structure
`wherein m6 plurality of triads of pixel elemems am arranged
`and controlled such that unpleasant display artifacts are
`minced
`
`'
`
`The present invention relates to an active—matrix liquid
`crystal multi-color display panel structure, and more par-
`ticularly, to a unique display panel structure comprised of
`generally triangular triads of colored display pixels arranged
`to permit 480 scan lines of data to be mapped directly onto lo
`720 rows of dots while retaining a normal scanning sense.
`.
`.
`.
`H‘ Plscusslén °_f {tie Pm” An
`_
`_
`A°ti"'e'm3triX iiqiilild °rY3t3i _mi:]iti'1F°i°red _di5Ptf3Y I173":
`structures are typica y comprise
`o’ a matrix 0 co ore
`dlsptiatlllpéxgls armpgeilm rows "TdhF°]u:1nn§ and,IV.tl:rhich ate 15
`Eggdrlfazr Sfviigtrflfondggggsszfiec tlngicailzltilcgm rfsggmgl.
`thin-film transistorsgof for exam le YLIIIC aIt)i0 hogs-silicon
`.
`’.
`P.
`’
`.rp
`field-effect design. Typically, multi—colored images are pro-
`duced on liquid crystal display panels by providing colored 20
`filters in association with pixel electrodes across a layer of
`5UMMARY OF THE iNVENTi0N
`liquid crystal. Construction techniques of liquid crystal
`The foregoing features and objects are achieved by pro-
`?_?h;(:§1(:1:idtitgfifrglaiflhfgluggugiiargewfli l:::_r‘::1:(]1tiE:
`viding a liquid crystal multi—colored display panel structure
`’
`y
`p
`.
`-
`.
`.
`.
`control each of the colored filters
`having triads of colored display pixel electrodes which are
`_
`'
`_
`rotated 90°, wherein a scanning control line is provided
`hTtt° Pixel aglrrtngemeilit ‘ind ‘3°nér°ri]5°nerne C33 deterrriing
`every l.5 rows of electrodes and wherein three column
`t e irnage ‘in ii)’« re50 iiiiena an i e iinwanie generate
`signal lines are provided for every two columns of colored
`Picture artifacts asseeiateti with the Partieiiiar Pixel arrange‘
`merit and Ceritrei 5Crierne- Ceristructieii er 3i3tiV°‘iri"tt-rix 30 display pixel electrodes. This design results in one of the
`iirliiin Crystal niiii_ii'e0i0refi di5Pi-"iY Renei Striietiires find
`three colors of display pixel electrodes being bisected
`3’rSrteP°t Elie :5;t6’c9it_t7t1°§i artrilfacts litre diicusiedhin detfiii is
`throughout the display. This arrangement allows 480 scan
`-
`-
`et-
`0-
`a
`a
`to
`egiie 1- ei ii -~ W ie is 3-Seigne
`lines to be mapped directly onto 720 rows of pixel electrodes
`to NEC'Co'rporation, and in [lS.Pat. No. 4,822,142 to Yasui
`while retaining lire normal scarirlirlg Sense. No auxiliary
`and which is assigned to Hosiden Electronics Company, Ltd. 35 memory or line storing is required, and the display panel
`Beth Patents are ine0rP‘0i’3-ted herein by reference
`structure can be manufactured using practical techniques.
`Preeeni reeearen and iieVei0P_rnent efr°rt5_ are e°ntinii'
`The liquid crystal multi—colored display panel structure
`::::::Y..:":t::i;;s;::i*;‘i:‘:::.:‘:::i.:..:’:.::‘;::..:.‘:*:i:,:.:.:';e:.;
`2 S"‘;“3“i§¥y imam 3
`plurality o
`l
`-
`i
`_
`co ore
`isp ay pixe
`e cctro es
`ispose
`triangular arrangements: Corriinoniy referred to as tiiadsv is 40
`thereon to form amatrix having columns in the first direction
`One known design inetiieii Oi iniPr0Vin8 Pieiiiie Cl1i?1iii)' and
`and rows in a second direction. The colored display pixel
`;‘::5r:’ei1itat1i1‘;ri-p':‘ei;_rettrr;§(iiri(8)‘]t:ir"gfrigreatirlglxgiIiilrgeglagriizgifiiig
`electrodes include three types of colors, namely the primary
`colors of red, blue and green. The colored display pixel
`groluhps or “L” shaped grouéis.
`d
`f T
`h
`.
`electrodes in adjacent columns are olfset approximately
`e present invention is
`irecte to aei itatet e mapping 45 one-half distance from one another such that they form a
`of video data from a video source onto a panel which has an
`plurality of generally triangular triads which are rotated 90°
`insulficient number of dots to permit a simple 1:1 mapping
`from conventional and prior art arrangements. Thus, one
`of the incoming data onto the display surface. In particular,
`side of each triad extends in the vertical direction. Aplurality
`the problem addressed is how to map a 480 active line color
`of column signal
`lines are disposed between the pixel
`video onto asurface with 720 rows of 720 columns of pixel 50 columns of the matrix and extend in a first or vertical
`elements or dots. The video data is typically transmitted
`direction. A single signal line is provided between alternate
`from a signal source, such as a digital map comprising 480
`adjacent columns of pixel electrodes, and a pair of signal
`slit samples, each of which is in an analog data stream
`lines are alternately disposed between the other adjacent
`format.
`columns, resulting in three column signal lines for every two
`A display panel having a matrix display which can 55
`columns of pixel electrodes. Thus, the resulting arrangement
`accommodate directly mapping 480 active lines of color
`is an aiiemeiing Paiiein Of One and “Y0 eeiiinin Signni tines
`video signals onto a display surface with 720 rows and 720
`extending between the eeiiinins Dr Pixel eieetr0deS-
`columns of pixel elements display while retaining the nor-
`The second portion of the control structure includes a
`mal scanning sense is desirable to reduce cost and design
`plurality of scanning control lines disposed every one and
`complexity.Arestructured panel comprising pixel electrodes 60 one—half rows of the matrix display and which extend in a
`and interconnects to the dots which permits the panel to be
`second or horizontal direction. These scanning control lines
`scanned directly, with no need for auxiliary memory or
`extend between two pixel electrodes of two different colors
`components is preferred.
`of a triad in alternating columns, such that the scanning line
`OBJECTS OF THE INVENTION
`extends across or bifurcates the third pixel electrode of ihe
`triad of a third color in alternating columns. Thus, each triad
`of pixel electrodes comprises one pixel electrode of a first
`and second color on opposite sides of the horizontal scan-
`
`25
`
`It is accordingly a principal object of the invention to
`provide a liquid crystal multi—colored display panel structure
`
`65
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`3
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`4
`
`5,485,293
`
`ning line, while one bifurcated pixel electrode of the third
`color is defined to the left or right of the first two electrodes,
`such that the triads are interlaced.
`
`5
`
`be produced by a triad of pixels respectively assigned to the
`three primary colors. Thus, a full color picture can be
`produced which is composed of picture elements with
`steplessly varied color tones.
`A plurality of switching transistors are provided, one
`The display panel structure includes control circuitry for
`C011Pl°d to Each 0f [I15 firs‘ and 5€‘3°“d 0010‘ Q/P55 Of Pixel
`connecting and coordinating the column signals between a
`e1ee“'°de5= and ‘me eenneeled ‘O 3‘ lees‘ one er the ‘W0
`control signal bus and the signal lines, which is dependent
`halves ef the mile eoler type of pixel eleeuedee The ‘We
`on whether an odd or even row of pixels is being Scanned
`halves of the third type of electrodes can either be electri-
`Arow drive circuit is connected to the scanning control lines
`Cally Connected together Such that they are both controlled
`lo for dfivin each of the imam of scan lines in S nchmnism
`by one transistor, or a separate transistor can be provided for
`.
`e .
`P .
`y
`.
`.y
`each of the halves. Each transistor is preferably comprised
`mm the h.0nZ°.ma]. 5.°“““‘“g cycle of a video Signal’ “Fe a
`of a thin-film FET having a first terminal or drain connected
`eelumn d“_"e elreull 15 Connected 10 the Column signal lines
`to one of the colored display electrodes, 21 second terminal
`fer 5“_PP1)’1ng 8 Vldeo signal
`to _each_ of the signal
`lines
`or gate connected to one of the signal lines, and the third
`terminal or source connected to one of the column scanning 15 where1mhe‘"p,m°f.thc °°l“_m“ dnvc e"°1m,‘S Connected t°
`lines to control conductivity between the respective first and
`a Comm} “mu” which pmvldes ‘he Vldeo slgnale
`second terminals. The third terminal of the switching tran-
`BRIEF DESCRIPTION OF TEE DRAWINGS
`sistors associated with the colored display electrodes of the
`F]G 1 .
`.
`.
`.
`.
`.
`.
`first and second colors of each triad are defined on opposite
`.
`is a sectional view showing, in a simplified form,
`.
`.
`.
`the enemi construction oi. a
`.or an ii uid C
`Sta] dis la
`sides of the scanning control line. As such, the gate or gates 2o
`dev;°::e_
`pn
`q
`P y
`ry
`associated of the colored display electrodes of the third color
`’
`t
`e of each triad are dis osed on one or the other of
`FIG 2 is ‘_1 View Shewieg 5} relaeen ameng display
`oyppposite sides of the respectIi)ve scanning line. If both halves
`eleelredes wmeh are a”a“_ged 1“ ‘made ef u“'ee‘e°l°red
`of the electrodes of the third type are electrically tied
`d‘5I’]a3_"e1emem eels’ wherem the made are related 90 end
`together, only one switching transistor is required for both 25
`wherein the scanmng control lines for _each row of triads
`halves of the pixel eloou.odoS_ Otherwise” a Separate mm_
`e’_“e“d5 between two electrodes Of dlfierem eelers and
`sistor can control the respective half of the pixel electrode of
`blfuremes one eleelmde of 3 lhlrd eeleri
`the third color type. It is noted that only one scanning control
`FIG. 3 is a view showing the relation among display
`lineis provided for each triad of pixel electrodes. Thus, only
`€I6Ctf0d6S,
`dTiVf5 lines including C0lllfnn and scanning liIl6S.
`one gate pulse is required per triad and the control interface 30
`and the thin film transistors which control the corresponding
`need not be complicated.
`electrodes, wherein a separate thin film transistor is provided
`-
`-
`-
`for each half of the bifurcated electrode, and wherein each
`ihoI]SJi(;(i1i1arl1‘l:ir1iito:f;?: goiiiigléfgl tttiwillzfEgfgighlgigf
`of ‘he three “EH31 lmes ea“ eomrel eleeeedes of “"0
`nals of the switching transistors associated with the pixels of
`two diiferent color types. This provides, for instance, one 35 dlfierent eeler types;
`column signal
`line to be connected to only those pixel
`FIG. 4 is an alternative embodiment Of the pfeffifred
`electrodes of one color type, such as green in adjacent
`invention modified such that one of every three column
`columns. The other two signal lines will each be connected
`signal linBS C0ntI0lS an 6l6CtT0d€ 0i only Ont: C0101‘ type, With
`to the other two types of pixel elecuodes in adjacent
`the other two column signal lines controlling pixel elec-
`columns, such as the blue and red pixel electrodes. The 40
`trodes 0ftW0 different CDIOT types;
`column signal lines will control the pixel electrodes of a
`FIG_ 5 is an yet another alternative embodiment of the
`triad addf6SS€d by the scanning C0ntI‘01 Iin6- In Opefatiflng as
`present invention wherein the bifurcated pixel electrode of
`1115 T0“/5 Of Pixel electrodfls 0f “I3 diSPl3)’ are Scannfid f1'0fn
`each triad of the third color is controlled by a single
`10? to b0lt0ms Whfln Scanning 1115 Odd WW3, 3 C0IU1Tln signal
`switching transistor and each half being electrically con-
`line will control one color, such as red. When scanning the 45 nected to the oihe;
`even rows, the same signal line_ will control the blue color
`other obi-ocisl features and advantages of the prosom
`I’_1"el eleeeedee Agami the "me of every three eolumn
`invention will become apparent to those skilled in the art
`signal lines control electrodes of only one color, such as
`upon reading the following Description of the piofoimd
`green, regardless of whether an even or odd row of pixels is
`Embodiment, mo “Claims”, and by iofom-mg to the drawings
`bemg Seamed‘
`50 herein in which like numerals refer to like elements.
`In another embodiment of the present invention, each of
`the column signal lines is connected to the second terminal
`of the switching transistors associated with the electrodes of
`two dilferent color types. Thus, when scanning odd rows,
`each column signal line will control pixel electrodes of one 55
`color of each triad, and when scanning even rows, the same
`column signal line will control pixel electrodes of each triad
`of the other color. The scanning control
`line which is
`scanned deterrriines which electrode is controlled. The col-
`umn signal lines provide a variable voltage to each of the 60
`scanned pixel electrodes to generate a field in the liquid
`crystal between the respective pixel electrodes and the
`common electrode to control
`the passage of light
`there-
`through. Light having the appropriate wavelength selected
`for the color filter associated with the particular color 65
`display is, thus, passed through the color filter so that a
`picture element in any of a total of eight different colors can
`
`Referring to FIG. 1, there is shown a liquid crystal display
`device which comprises a pair of transparent substrates 10
`and 12 and a liquid crystal 14 sealed therebetween. A
`plurality of transparent square display electrodes are pro-
`vided on the inner surface of one of the transparent sub-
`strates 10 and 12. A transparent common electrode 18 is
`provided on the entire inner surface of the other substrate 12
`opposite electrodes 16. The display electrodes 16 are
`arranged in rows and colurrms and are actively controlled by
`thin film transistors attached to them. The thin film transis-
`tors are controlled by row or scanning drive lines and
`column signal drive lines. A more detailed description of a
`typical prior art colored liquid crystal display device is
`
`DESCRIPTION OF THE PREFERRED
`EMBODIMENT
`
`SEC v. Surpass Tech, |PR2015—OO887
`SAMSUNG EX. 1029 — 7/11
`
`SEC v. Surpass Tech, IPR2015-00887
`SAMSUNG EX. 1029 - 7/11
`
`

`
`5,485,293
`
`5
`
`15
`
`6
`5
`One key feature of the present invention is that only one
`described in U.S. Pat. No. 4,822,142 which is hereby
`incorporated by reference.
`scanning control line 26 is required per triad 22. Hence, only
`one gate pulse needs to be provided, allowing for less
`Referring to FIG. 2,
`the preferred embodiment of an
`complex driving electronics. A control line 26 is provided
`active-matrix liquid crystal multi-colored display panel
`only every 1.5 rows of pixel electrodes 16. This design is
`_
`_
`_
`structure is generally shown at 20. Display 20 is manufac-
`adwllltageelle °VeT I-met
`dlSPlaYS beeallse tlle PlX_el
`tured using well«known techniques, such as techniques used
`eleetredes 16_ ea" be large’ 1“ flfea than Plxel eleetT°de_S 1"
`to create the structure shown in FIG. 1. However,
`the
`d15Pl3Y3 ll3Vl1'l8 3 Sealmlllg lltle tel" eVeT'Y TOW Ol _P1Xel
`preferred embodiment of the present invention is vastly
`electrodes alld lTl'<11'lllt3el_ll’e 15 3lmPllt_led~ lVl0le°VeTs Pl‘l°l' all
`different from prior art displays in that the arrangement and
`dl5Pl_3YS ll-"lVlllg 3 Sealllllllg etftllrel llne tel’ eVel'Y ether TOW
`interconnection of the display electrodes, the row scanning r0
`0f Pixel eleet1”°de5 ere 1tll_el'l01' beeeuse the ‘Smaller elee'
`and column signal drive lines, and the arrangement of the
`trodes of the Present lllVeYltl°“ P1'0}’1tle lllgllef Image llllallll’
`thin film transistors is unique compared to prior art arrange-
`and resolution. Thus, the present invention is unique from
`mama Ir, FIG. 2, dismay rflecrrodes 15 are arranged in rows
`the PTl0l' all due t0 the lmlqlle deslgn arrangement 0t the
`and columns to form a display matrix as shown. The pixel
`scanning control lines and the column signal control lines
`electrodes 16 are comprised of one of three Colors, namely,
`and the rotated triads to achieve a display panel capable of
`the primary colors of red, blue or green. The pixel electrodes
`high quality images yet which can be directly driven by the
`16 are arranged in a pattern producing a plurality of gener—
`control electronics.
`ally triangular interleaved triads of colored display pixels.
`Referring to FIG. 3, the relation of the display electrodes
`Each “lad Compllses 0”‘: Plxel of each of ll“: three pllmary
`26 to the column signal drive “nos 30’ row or Scanning drivc
`colors. These color groups or triads are represented by the
`lines 26, thin film transistors 40 and drive/control circuitry
`czlglgifilniaafiallrllai grguptng Eidfimlfied at 22' Each olmc “lads 20
`42 is illustrated For
`u oses of illustration and clarifica-
`g E S ape an
`avflanapcx S own at24'Apex
`tion consecutive row gr lsiianning control lines 26 have been
`24 is always centered Over a respective mw or scanning
`’
`.
`control line 26. All triads 22 are oriented and interleaved
`labeled lfl’ L2’ ['3 ‘
`'
`.' from top to bottom’ and wherein
`such that the apex 24 of the triads 22 are disposed on either
`the right side or the left side of the triangle as one observes 25 Column Slgnal Control hues 30 are refemnced left [0 “gm as
`C1, C2, C3 .
`.
`. Triads T, and T2 correspond to the triads
`the display with the column drive lines extending in the
`discussed in relation to FIG. 2. Each of pixel electrodes 16
`vertical direction as shown in FIG. 2. Hence, electrodes 16
`are controlled by a respective thin film switching transistor
`in adjacent columns are offset from one another one-half
`40, as will be discussed in greater detail shortly. Circuit 42
`pitch distance, which is half the height of an electrode 16.
`provides controls and drives the column control signals,
`The arrangement of pixel electrodes into triads is well 30
`_
`_
`_
`.
`_
`_
`etmslsllllg 0t Plxel _lllt°lm3ll°_ll» l0 the tlllee'e9l°l' tllsplay
`known for providing a picture of enhanced resolution which
`is free from image moires. However, the arrangement of the
`element Sets
`f0m'l1“8 the Pixel may» 33 Wlll
`“OW be
`triads 22 in accordance with the present invention is unique
`tlesellbetl ll‘ detall
`from the prior art because each triad 22 is rotated 90° such
`Alternate rows of scanning drive lines 26 are driven in
`that one side 28 of each triad 22 extends in the vertical 35
`synchronism with the horizontal sync pulses HM by the
`direction. As shown, one complete pixel electrode 16 of triad
`conventional arrangement of a row register 44 and a row
`22 lies on the other side of the respective scanning control
`drive circuit 46. More specifically, all the odd rows labeled
`line 26, while the third pixel electrode 16 of the triad
`Lr,L3 .
`.
`. are firstsueccssively driven in synchronism with
`proximate apex 24 is divided or bifurcated by control line 26
`the horizontal sync pulses, and then the even row dri vc lines,
`with one-halfof the bifurcated pixel electrode 16 situated on 40 L2, L4 .
`.
`. are driven to complete a picture on the display in
`each side of control line 26. Thus, only one of the three pixel
`an interlaced manner. A switching circuit 50, forming a
`electrodes 16 which form each triad 22 is divided or inter—
`subset of circuit 42 connects the input signal lines R, G and
`sected by a control scanning line 26. None of the pixel
`B to control signal busses 52, 54 and 56 as shown. When the
`electrodes 16 is intersected by any of the column signal
`odd rows of triads are being scanned by the driving elec-
`control lines 30. As shown in FIG. 2, several column signal 45
`tronics via lines L1, L3 .
`.
`.
`, switching circuit 50 routes the
`control lines 30 are provided. Specifically, there are three
`signals R, G and B, labeled as inputs 51, to color signal
`control lines 30 for each triad 22. In other words, there are
`busses 52, S4, and 56, respectively. Thus, signal control line
`three control lines for each two columns of pixel electrodes
`C, provides red pixel information to each of the adjacent red
`16, yielding 50% more signal control lines 30 than columns
`pixel electrodes 16, signal control line C2 provides green
`of pixel electrodes 16. While this arrangement necessitates 50 pixel information to each of the adjacent green pixel elec-
`a higher interconnect density in the horizontal direction and
`trodes, and signal control line C3 provides blue pixel infor-
`also requires additional gray scale driver electronics, current
`mation to each of the adjacent blue pixel electrodes 16.
`and improving technologies for integrated driver electronics,
`Subsequently, when even rows of triads are stroke scanned,
`such as chip-on glass or direct transistor deposition tech-
`via scanning lines, L2, L4 .
`.
`.
`, switching circuit 50 provides
`niques can provide the necessary higher interconnect den— 55
`the R, G and B pixel information to color signal busses S6,
`sities at a reasonable cost.
`52 and 54, respectively. Thus, in the preferred embodiment,
`Still referring to FIG. 2, a first triad group T,, and a
`each signal control line Cr. C2. C3 -
`-
`- can provide pixel
`second triad group T2 are Shown and are Shadad for mus.
`information of two different colors to adjacent columns of
`rrarrorr purposaa Triad groups T1 and T2 are ajsr, corms.
`electrodes 16 as controlled by bus switching circuit 50.
`tently shown in FIG. 3 as will be discussed shortly. Triads 60
`A tertiary counter 60 is provided between terminal 72
`22, typified by triad T1, are all arranged with apex 24 to the
`providing the Hm, horizontal sync pulse and switching
`right in odd rows of triads and in even rows, such as triad T2,
`circuit 50. Counter 60 counts to 240 (half the number of total
`the apex 24 is positioned to the left. This arrangement allows
`scan lines) as the row control electronics completes scanning
`the triads in adjacent rows to interleave and provide a high
`the 240 odd rows of control lines 26. Counter 60 provides
`density of pixel electrodes 16 per unit area. High density, of
`switching circuit 50 a control signal on line 61 to initiate the
`course, translates into high resolution pictures without unde-
`rearrangement of the R, G and B pixel signals to color signal
`sirable display artifacts.
`busses S2, 54 and 56 before the subsequent scanning of the
`
`65
`
`SEC v. Surpass Tech, |PR2015—OO887
`SAMSUNG EX. 1029 — 8/11
`
`SEC v. Surpass Tech, IPR2015-00887
`SAMSUNG EX. 1029 - 8/11
`
`

`
`5,485,293
`
`8
`
`att estarto eac
`
`orizont
`
`scanning cyc e 15
`
`_
`
`1_
`
`_
`
`,
`
`_
`
`of pixel electrodes 16. As shown, both signal control line C,
`and C3 are coupled via switching transistors 40 to each of the
`blue and red pixel electrodes 16 in adjacent columns. When
`signal control line C 1 is providing pixel information to the
`red pixel electrodes 16 of the adjacent columns, signal
`control line C3 is providing pixel information to the blue
`pixel electrodes 16. Thus, as the odd row control lines 26 are
`§.§3’$?§§a ‘3§“i$§f$I§i“‘fi§§“cf°' ,§?§e§°‘§,iEél°ln?l‘i§§Z§?§§
`_
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`l3{T0V1_d€d 0T1_51gn3l 90930] 1m5 C2» {ind blue Plxfll mf°Tm3'
`“On *5 P1'°V1de_d 0“ 5121131 3011301 11”‘? C_3- when _lh'3‘°V°“
`::::.::::t;'..1::::,:2,.:‘:i:::";e:.;.:,:“::t:::%§;.:=:;:if2
`_
`_
`
`7
`to generate one
`even rows of control signals 26. Thus,
`complete frame on the display 20, the odd row control lines
`26 labeled L1, L3 .
`.
`. are scanned first, and then the even
`control lines 26, labeled L2, L4 .
`.
`. are scanned. Switching
`circuit 50 rearranges the R, G and B inputs labeled 51 to 5
`color signal busses 52,54 and 56 only twice every generated
`frame on the pixel array 20.
`fi T‘; i°d"‘E{%‘° *‘“§,‘““‘e° °“-‘“”“‘}’ 23’ ‘-""35 {,“f°;’;‘*‘;i;’“ is
`rst o
`e
`rornt erespective co ore sign
`us
`,
`an
`56 into column registers 62. A clock signal, CLK, having 10
`three times the dot frequency of the input colored video
`ea; etegeegeee
`e
`geese ee
`to a s 1 t register
`.
`c
`orrzont
`sync pu se M 18
`es i tregrster
`is
`of
`eeleeeee-.Thie eeeeeeemeee eemeweee eimelitee the ewieee
`fi?§‘l’£;§§§LS$°Su'ipu?'§r ffiihsilifififiiilli l.;“s£?Ff’?$‘;Z£fi
`ing circuit 50 and control arrangement shown in FIG. 3. One
`70_ Thus
`as the odd or even row drive lines 26 are
`successively driven in synchronism with the horizontal sync 20 C°iu"mfc°.mr1°l’1Suchdas
`H"; 1S wgys dhedlcaled “i one
`eelegj, by
`:t:;°..::::, ;:.::“;i:.:.,..i;::;:;:i 1:. :1:::.:i;i:::::;
`ters
`and row drive circuit 6, pixel data wi
`e provide
`.
`.
`1
`d
`16. A
`,
`h h
`dd
`1
`.
`-
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`by the respective column register 62 via a column driver 71
`fijglaz :5 bein E32“; Elicglg: Vshelggrilxiricligr Cgflgfit
`[0 the respective column Comm] line 30’
`50 is routing tile red pixel signals on R to color signal bus
`Multiple pflrallel column r,egi5te.r 62 can be provided’
`25 52 or 56, and whether the blue pixel signals on B are being
`such that while a gate pulse is active for one of the row
`muted to color Signal bus 56 or 52
`comm] lines 26’ (Such as comm] line L‘)’ the pixgl data for
`Another alternative embodiment -of the present invention
`'
`f h
`'
`1'
`L ,
`‘
`'
`.
`.
`.
`gzfnegje(Egr:33:1atcezniifigsginnglrf£36251: lgzisigrgsgelffig
`is shown in FIG. 5. Here, each of the two blue pixel
`column registers 62. Thus, when the pixel data is provided 30 electrgdes 16hfor 2.1 panlculgr {Sad fizgre elggmtgllly con’
`onoeeeee :::::i.;:e.:;.:;.::e43.:‘;:.::..:;:..mi i:i,.::e
`is being scanned, data for the next row of triads to be
`.
`,
`.
`.
`.
`'
`scanned is being routed to color signal busses 52, 54 and 56
`:11:1;?x:1l:11::;:S::ecsu¥=h:'Sgn0ar111(;,°:rt|re0:Vijfghiiggirflglsgrlgg
`,,or
`zrglrequhleg ggregalggruizgrlzg
`66 Swim mg transistors
`_
`_
`‘
`
`‘
`
`directly driven without auxiliary memory or line storage
`capabilities.
`to me e e
`.
`.
`.
`40, comprised of a FET, is provided for each red and green
`lltrd16 hl,h
`26
`df720
`-
`-
`-.
`theaiiifillrsccatetllnlalue ellelcllrotllzlaelingasconslrdisraecrl ocrfelelglitrlirillz
`pixel electrode 16' FIZT 4:613 also provldgg for each of hhe 40
`.
`.
`.
`.
`'
`'
`l
`1
`'
`'
`. I
`'
`Thus, a standard 480 active line colored video signal can be
`$60 :r1:a:g:::e:le$r:l‘::uod:: zifllidlllgidinleréfizfgelgdslucalfi
`dlrlectly m?pl;"edu°I‘1il° alglslglg) parfil s%1:)cm.re lhafmg 120
`that it is the green electrodes or the red electrodes 16 which
`‘It: llmm E 6 cc 1 es,
`'
`ll:
`.62 2;
`pl,“ elm wdes
`are divided in half. Hence, lirriitation to the exact orientation
`of colored electrodes by color is not to be inferred. As each 45 of tlsszzjalyelgi gjjifirrilnns6:; :a1:ifion;°1:Jl:l;sf:afticeL::3;:
`fggrglollnlfafiifings :ca::[:d’K:1;ir::1pe;t)1rY:e::1$C l;):Eettr0anS;e
`a total of 360 triads of pixels 16 in each row which also
`rendered conductive. The source terminal of each switching
`corresponds to the number of pixel samples per line of the
`transistor 40 is connected to an adjacent control line 30, and
`vilfeo dsollrcii ThuS’1[i-‘.6 videfoh S3(;‘;c§ hiring 480 aclilve
`the drain terminal of each switching transistor 40 is con— 50 Co or;
`lcomm 1:65 W“ h
`dislgln
`Sofurie Samp 65
`nected to the adjacent respective pixel electrode 16. Thus, as
`,can
`‘T’ “gay Ilillppe
`omo t 6‘, Sp ay 0 I 6 present
`the respective switching transistor 40 is rendered conductive d (3[,';11:’:)lt::i3'oI':1:;nt;)1gyU(1?;dlSn2l?2S:)°r3%‘:cgggggfgg
`by the adjacent control line 26, the pixel infzlrrpatioarid or
`a unigue diéplay without requiring a “pin:_p0n:,, mgmory
`voltage on the respective adjacent column sign
`ine r
`, is
`.
`.
`.
`.
`.
`.
`.
`'
`provided through the conductive FET to the respective pixel
`55 Egrglhlge5:33“zlrafiamgégizlnighthfhgorggfgeifcggflfiiéfgli:n
`electrode 16. Thus, pixel information provided on the signal
`lechliliques can be fimplerhemed
`3
`_
`_
`'
`control lines 30 are presented only to the pixel electrodes 16
`_
`adjacent the scanned row control line 26. The pixel infor—
`11 15 T10l_€d
`that the t_Jl'6S6nt matrix architecture could be
`mation for the bifurcated blue pixel electrodes 16 is pro-
`CmP1l‘_3)’§d ldn 0[h°;E3:lY_1X:3Ch“0l?81‘35 33d}V31]ll11C1Ud1cTl18hb:1(§
`vided to each of the pixel electrodes, via the respect