JPH0277985U

JPH0277985U -

Info

Publication number: JPH0277985U
Application number: JP15699188U
Authority: JP
Priority date: 1988-11-30
Filing date: 1988-11-30
Publication date: 1990-06-14

Description

[Brief explanation of drawings]

第１図は本考案に係る液晶画像表示装置の第１
の構成（実施例）を示すブロツク図、第２図は第
１図の主要部における信号波形図、第３図は画像
再現されるライン映像信号を示す信号波形図、第
４図は第１図における駆動映像信号と再現映像信
号の関係を説明する図、第５図は本考案の第２の
構成（実施例）を示すブロツク図、第６図は第５
図中のサンプルホールド回路の概略を示す回路図
、第７図は第５図における映像信号の間引き状態
を説明する図である。１，１７……判別手段（判別回路）、３……間
引手段（間引回路）、５……Ｙラインドライバ手
段（Ｙラインドライバ回路）、７，１９……Ｘラ
インドライバ手段（Ｘラインドライバ回路）、９
，２１……コントロール回路、１１，２３……サ
ンプルホールド回路、１３……液晶表示手段（Ｌ
ＣＤパネル）、１５……画素、２５，２７，２９
……スイツチ回路、３１……出力バツフア回路、
Ｓ_１〜Ｓ_６……スイツチ、Ｃ_１〜Ｃ_４……コンデ
ンサ。 FIG. 1 shows a first example of a liquid crystal image display device according to the present invention.
2 is a signal waveform diagram showing the main parts of FIG. 1, FIG. 3 is a signal waveform diagram showing a line video signal for image reproduction, and FIG. 4 is a diagram showing the main part of FIG. 1. FIG. 5 is a block diagram showing the second configuration (embodiment) of the present invention, and FIG.
FIG. 7 is a circuit diagram schematically showing the sample and hold circuit in the figure, and is a diagram explaining the thinning state of the video signal in FIG. 5. 1, 17...discrimination means (discrimination circuit), 3... thinning means (thinning circuit), 5... Y line driver means (Y line driver circuit), 7, 19... X line driver means (X line driver circuit), 9
, 21...control circuit, 11, 23...sample hold circuit, 13...liquid crystal display means (L
CD panel), 15... pixels, 25, 27, 29
...Switch circuit, 31...Output buffer circuit,
_S1 to _S6 ...Switch, _C1 to _C4 ...Capacitor.

Claims

[Scope of Claim for Utility Model Registration] (1) Discrimination means for determining whether the number of horizontal scanning lines is greater than a predetermined reference number of horizontal scanning lines; a thinning means for thinning out the horizontal synchronizing signal every predetermined number; and a thinning means for thinning out the horizontal synchronizing signal by a predetermined number; liquid crystal display means arranged in the Y line direction; A liquid crystal image display device comprising: Y line driver means for sequentially driving the one pixel line in the liquid crystal display means in the Y line direction. (2) Discrimination means for determining whether the number of horizontal scanning lines is greater than a predetermined reference number of horizontal scanning lines; A liquid crystal display means in which the pixel lines are arranged in the Y line direction corresponding to the number of horizontal scanning lines, and a video signal for a plurality of lines is defined as one section in accordance with the discrimination result from the discrimination means, and the one pixel and A liquid crystal image display device comprising: Y line driver means for driving sequentially in the line direction;