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1. WO2008068920 - GRADATION VOLTAGE CORRECTION SYSTEM AND DISPLAY APPARATUS UTILIZING THE SAME

Publication Number WO/2008/068920
Publication Date 12.06.2008
International Application No. PCT/JP2007/063536
International Filing Date 06.07.2007
IPC
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
for 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
34
by control of light from an independent source
36
using liquid crystals
G PHYSICS
02
OPTICS
F
DEVICES 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
1
Devices 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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3
Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20
for 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)
G02F 1/133 (2006.01)
G09G 3/20 (2006.01)
CPC
G09G 2320/0285
G09G 2320/041
G09G 2320/043
G09G 2320/0666
G09G 2360/145
G09G 3/3413
Applicants
  • シャープ株式会社 SHARP KABUSHIKI KAISHA [JP/JP]; 〒5458522 大阪府大阪市阿倍野区長池町22番22号 Osaka 22-22, Nagaike-cho, Abeno-ku, Osaka-shi, Osaka 5458522, JP (AllExceptUS)
  • 太田裕己 OHTA, Yuuki; null (UsOnly)
  • 濱田哲也 HAMADA, Tetsuya; null (UsOnly)
Inventors
  • 太田裕己 OHTA, Yuuki; null
  • 濱田哲也 HAMADA, Tetsuya; null
Agents
  • 特許業務法人池内・佐藤アンドパートナーズ IKEUCHI SATO & PARTNER PATENT ATTORNEYS; 〒5306026 大阪府大阪市北区天満橋1丁目8番30号OAPタワー26階 Osaka 26th Floor, OAP TOWER 8-30, Tenmabashi 1-chome Kita-ku, Osaka-shi, Osaka 5306026, JP
Priority Data
2006-32957506.12.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) GRADATION VOLTAGE CORRECTION SYSTEM AND DISPLAY APPARATUS UTILIZING THE SAME
(FR) SYSTÈME DE CORRECTION DE TENSION DE GRADATION ET DISPOSITIF D'AFFICHAGE UTILISANT UN TEL SYSTÈME
(JA) 階調電圧補正システム、及びこれを用いた表示装置
Abstract
(EN)
In gradation voltage correction system (14b) capable of correction of gradation voltages fed to multiple pixels, disposed in liquid crystal display apparatus (1) built so as to allow color display, there is provided not only color sensor (chromaticity change acquiring section) (13) for acquisition of any chromaticity change of illuminating light from light emitting diode (4) but also correction determining section (14c) capable of determining a gradation voltage correction value for each color of red, green and blue pixels on the basis of detection (acquisition) results from the color sensor (13).
(FR)
La présente invention concerne un système de correction de tension de gradation (14b) capable d'une correction de tensions de gradation alimentées à une pluralité de pixels, disposés dans un dispositif d'affichage à cristaux liquides (1) construit pour permettre l'affichage couleur, dans lequel est prévu non seulement un capteur de couleurs (section d'acquisition de changement de chromaticité) (13) pour l'acquisition de tout changement de chromaticité de la lumière d'éclairage provenant d'une diode électroluminescente (4) mais également une section de détermination de correction (14c) capable de déterminer une valeur de correction de tension de gradation pour chaque couleur de pixels rouges, verts et bleus en fonction des résultats de détection (d'acquisition) provenant du capteur de couleurs (13).
(JA)
 カラー表示可能に構成された液晶表示装置(1)に設けられるとともに、複数の画素に供給される階調電圧を補正する階調電圧補正システム(14b)において、発光ダイオード(4)からの照明光の色度の変化を取得するためのカラーセンサ(色度変化取得部)(13)を設置するとともに、カラーセンサ(13)からの検出(取得)結果を基に、赤色、緑色、及び青色の画素の色毎に、階調電圧の補正値を決定する補正決定部(14c)を設ける。
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