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1. (WO2005109393) LIQUID CRYSTAL DISPLAY DEVICE, COLOR MANAGEMENT CIRCUIT, AND DISPLAY CONTROL METHOD

Pub. No.:    WO/2005/109393    International Application No.:    PCT/JP2004/012483
Publication Date: Nov 17, 2005 International Filing Date: Aug 30, 2004
IPC: G02F 1/133
G09G 3/36
Applicants: SHARP KABUSHIKI KAISHA
シャープ株式会社
KONDO, Naoko
近藤 尚子
FURUKAWA, Hiroyuki
古川 浩之
UENO, Masafumi
上野 雅史
YOSHIDA, Yasuhiro
吉田 育弘
Inventors: KONDO, Naoko
近藤 尚子
FURUKAWA, Hiroyuki
古川 浩之
UENO, Masafumi
上野 雅史
YOSHIDA, Yasuhiro
吉田 育弘
Title: LIQUID CRYSTAL DISPLAY DEVICE, COLOR MANAGEMENT CIRCUIT, AND DISPLAY CONTROL METHOD
Abstract:
A color management of the whole screen is performed which corrects, in real time, the mutual affections caused by the primary colors in each of the pixels and the inter-pixel affections without using any complicated correction circuits and which includes prevention of cross-talk over the whole screen. A pixel signal of a predetermined level (m) to be inputted to a pixel electrode is corrected such that the display brightness obtained by the pixel signal is approximately constant independently of the level of pixel signals to be inputted to adjacent pixel electrodes. Pixel signals of a local color, an adjacent color and a second adjacent color, which is a color adjacent to that adjacent color, are used for a calculation to obtain a signal that is to present the local color. That is, a pixel signal to be inputted to a noticed pixel electrode is corrected by use of the pixel signal to be inputted to the noticed pixel electrode, a pixel signal to be inputted to an adjacent pixel electrode that is adjacent to the noticed pixel electrode in a predetermined direction, and a pixel signal to be inputted to a next adjacent pixel electrode that is adjacent to the foregoing adjacent pixel electrode in the predetermined direction. For example, in a case of obtaining a signal (Gn)out, a signal of a local color (Gn)in, a signal of an adjacent color (Bn)in, and a signal of a next adjacent color (Rn+1)in are used for the calculation using conversion formula.