JPH02119690U

JPH02119690U -

Info

Publication number: JPH02119690U
Application number: JP2809189U
Authority: JP
Priority date: 1989-03-14
Filing date: 1989-03-14
Publication date: 1990-09-26

Description

[Brief explanation of drawings]

第１図は本考案のマトリクス表示装置の原理構
成図、第２図は本考案のマトリクス表示装置の一
実施例の全体構成図、第３図は第２図のメモリ制
御回路の動作波形図、第４図は第２図のラインメ
モリの動作波形図、第５図は第２図のシリアル／
パラレル変換回路の動作を示す波形図、第６図は
第２図の走査制御回路の動作波形図、第７図は従
来のマトリクス表示装置の構成図、第８図は第７
図のデータドライバの構成図、第９図は表示容量
の増大に伴うデータ転送速度の変化を示す説明図
である。１……ラインデータ記憶手段、２……メモリ制
御手段、３……走査制御手段、２０……液晶パネ
ル、２１……走査バス、２２……データバス、２
５……走査ドライバ、２６……データドライバ、
２７……ライインメモリ、２８……シリアル／パ
ラレル変換回路、２９……メモリ制御回路、３０
……走査制御回路。 FIG. 1 is a diagram of the principle configuration of the matrix display device of the present invention, FIG. 2 is a diagram of the overall configuration of an embodiment of the matrix display device of the present invention, and FIG. 3 is an operational waveform diagram of the memory control circuit of FIG. 2. Figure 4 is an operating waveform diagram of the line memory in Figure 2, and Figure 5 is the serial/operating waveform diagram in Figure 2.
FIG. 6 is a waveform diagram showing the operation of the parallel conversion circuit, FIG. 6 is an operation waveform diagram of the scan control circuit in FIG.
FIG. 9 is a diagram illustrating the configuration of the data driver shown in FIG. 9, and is an explanatory diagram showing changes in data transfer speed as the display capacity increases. DESCRIPTION OF SYMBOLS 1... Line data storage means, 2... Memory control means, 3... Scanning control means, 20... Liquid crystal panel, 21... Scanning bus, 22... Data bus, 2
5...Scan driver, 26...Data driver,
27... Line-in memory, 28... Serial/parallel conversion circuit, 29... Memory control circuit, 30
...Scan control circuit.

Claims

[Claims for Utility Model Registration] In a matrix display device having a display panel including a scan bus and a data bus arranged orthogonally and a display element provided at the intersection thereof, a line for storing one line of display data. a data storage means 1, and the storage means 1 stores display data for one line sent at a frequency every N lines;
a memory control means 2 for storing the data in the memory, reading it at a frequency/N and transmitting it to a data driver driving a data bus; and a scan control means 3 for causing a scan driver driving a scan bus to perform interlaced scanning every N lines. A matrix display device characterized by being provided with.