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1. WO2006098448 - LIQUID CRYSTAL DISPLAY DEVICE

Publication Number WO/2006/098448
Publication Date 21.09.2006
International Application No. PCT/JP2006/305451
International Filing Date 17.03.2006
IPC
G02F 1/133 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
G02F 1/1343 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1343Electrodes
G02F 1/1368 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362Active matrix addressed cells
1368in which the switching element is a three-electrode device
G09G 3/20 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G09G 2300/0443
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
04Structural and physical details of display devices
0439Pixel structures
0443with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
G09G 2300/0447
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
04Structural and physical details of display devices
0439Pixel structures
0443with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
0447for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
G09G 2300/0876
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2300Aspects of the constitution of display devices
08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
0876Supplementary capacities in pixels having special driving circuits and electrodes instead of being connected to common electrode or ground; Use of additional capacitively coupled compensation electrodes
G09G 2310/08
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
08Details of timing specific for flat panels, other than clock recovery
G09G 2320/0276
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0271Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
0276for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
G09G 2320/028
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
028by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
Applicants
  • シャープ株式会社 SHARP KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • 北山 雅江 KITAYAMA, Masae (UsOnly)
  • 下敷領 文一 SHIMOSHIKIRYOH, Fumikazu (UsOnly)
  • 塩見 誠 SHIOMI, Makoto (UsOnly)
Inventors
  • 北山 雅江 KITAYAMA, Masae
  • 下敷領 文一 SHIMOSHIKIRYOH, Fumikazu
  • 塩見 誠 SHIOMI, Makoto
Agents
  • 奥田 誠司 OKUDA, Seiji
Priority Data
2005-08076018.03.2005JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIQUID CRYSTAL DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE A CRISTAUX LIQUIDES
(JA) 液晶表示装置
Abstract
(EN)
A pixel includes a first and a second sub-pixel and a plurality of auxiliary capacity trunks independent from one another. Each of the auxiliary capacity trunks is electrically connected via an auxiliary capacity wire to one of the auxiliary capacity opposing electrodes of the first and the second sub-pixel. The vertical scan period of the input video signal is divided into at least two sub-frames. In each of the sub-frames, a display signal voltage is written into each pixel. Two vertical scan periods in which the input video signals are continuous contain a sequence of two continuous sub-frames where a display signal voltage is written with the same polarity and a sub-frame where the polarity of the display signal voltage is inversed. The auxiliary capacity opposing voltage includes, in each of the sub-frames, a first waveform vibrating with a first cycle of the horizontal scan period multiplied by an integer not smaller than 2 and a second waveform in which an effective value of the auxiliary capacity opposing voltage is set to a predetermined constant value for each vertical scan period of a predetermined number of continuous input video signals. Moreover, the first waveform has a phase different by 180 degrees between the sub-frames having a polarity and an inversed polarity.
(FR)
L'invention se rapporte à un pixel qui comprend un premier et un second sous-pixel et une pluralité de circuits capacitifs auxiliaires indépendants les uns les autres. Chacun de ces circuits capacitifs auxiliaires est raccordé électriquement par l'intermédiaire d'un câble de capacité auxiliaire à l'une des électrodes opposées du premier et du second sous-pixel. La période de balayage vertical du signal vidéo d'entrée est divisée en au moins deux sous-images. Dans chacune de ces sous-images, une tension du signal d'affichage est appliquée à chaque pixel. Deux périodes de balayage vertical, au cours desquelles les signaux vidéo d'entrée sont continus, contiennent une séquence de deux sous-images continues dans lesquelles la tension du signal d'affichage présente la même polarité, et une sous-image dans laquelle tension du signal d'affichage présente une polarité inverse. Les tensions opposées de la capacité auxiliaire comprennent, dans chacune des sous-images, une première forme d'ondes dont l'oscillation correspond à un premier cycle de la période de balayage horizontal multiplié par un nombre entier égal ou supérieur à 2, et une seconde forme d'onde, la valeur effective des tensions opposées de la capacité auxiliaire étant fixée à une valeur constante prédéterminée pour chaque période de balayage vertical d'un nombre prédéterminé les signaux vidéo d'entrée continus. La première forme d'onde présente en outre un déphasage de 180 degrés entre les sous-images d'une première polarité et celles de la polarité inverse.
(JA)
 画素は第1および第2副画素を有し、互いに電気的に独立な複数の補助容量幹線を有する。各補助容量幹線は、第1および第2副画素が有する補助容量対向電極のいずれかに補助容量配線を介して電気的に接続されており、入力映像信号の垂直走査期間が2以上のサブフレームに分割され、各サブフレームにおいて各画素に表示信号電圧が書き込まれ、入力映像信号の連続する2つの垂直走査期間内において、表示信号電圧が同極性で書き込まれるサブフレームが2つ連続しその後のサブフレームで表示信号電圧の極性が反転するシークエンスを含む。補助容量対向電圧は各サブフレームにおいて、水平走査期間の2以上の整数倍の第1周期で振動する第1波形と、連続する所定数の入力映像信号の垂直走査期間毎に補助容量対向電圧の実効値が所定の一定値をとるように設定されている第2波形とを含み、かつ、極性が反転するサブフレーム間で第1波形の位相が180°異なる。                                                                             
Also published as
EP6729440
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