JPH0290888U - - Google Patents
Info
- Publication number
- JPH0290888U JPH0290888U JP16955288U JP16955288U JPH0290888U JP H0290888 U JPH0290888 U JP H0290888U JP 16955288 U JP16955288 U JP 16955288U JP 16955288 U JP16955288 U JP 16955288U JP H0290888 U JPH0290888 U JP H0290888U
- Authority
- JP
- Japan
- Prior art keywords
- frame
- signal
- horizontal synchronization
- captured
- synchronization signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Digital Computer Display Output (AREA)
- Liquid Crystal Display Device Control (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案に係る液晶表示装置を示すブロ
ツク図、第２図は本考案に係るパルス成形回路を
示す図、第３図は第２図の各部の信号波形を示す
図である。そして図面中、
１は液晶コントローラ、２はフレームバツフア
メモリ、３は液晶モジユール、５，９はフリツプ
フロツプ、７はナンド回路、８はカウンタである
。
FIG. 1 is a block diagram showing a liquid crystal display device according to the present invention, FIG. 2 is a diagram showing a pulse shaping circuit according to the present invention, and FIG. 3 is a diagram showing signal waveforms of various parts in FIG. In the drawing, 1 is a liquid crystal controller, 2 is a frame buffer memory, 3 is a liquid crystal module, 5 and 9 are flip-flops, 7 is a NAND circuit, and 8 is a counter.
Claims (1)
に、その水平同期信号に対応させて１フレーム中
の画像信号をフレームメモリに取り込む一方、取
り込まれた画像情報を読み出し、１フレームにお
いて所定数の水平同期信号で画像表示をするよう
にした液晶表示装置において、 前記ビデオ信号の１フレームにおける水平同期
信号の数が前記液晶表示装置の１フレームにおけ
る水平同期信号の数より少ない場合に、その差に
基づいて前記ビデオ信号の垂直同期信号と水平同
期信号とから前記垂直同期信号の周期よりも長い
周期のパルスであつて、前記画像信号を取り込む
べきフレームを中心として当該フレームの前後に
おける前記パルス間に前記差に等しい水平同期信
号を数えることができるパルスを成形するパルス
成形回路を設け、このパルス成形回路によるパル
スを新たな垂直同期信号として画像信号の前記フ
レームメモリへの取り込みを行なうようにしたこ
とを特徴とする液晶表示装置。[Claims for Utility Model Registration] In addition to synchronizing with the vertical synchronization signal of the video signal, the image signal in one frame is captured into the frame memory in correspondence with the horizontal synchronization signal, and the captured image information is read out and one frame In a liquid crystal display device configured to display an image using a predetermined number of horizontal synchronization signals, when the number of horizontal synchronization signals in one frame of the video signal is smaller than the number of horizontal synchronization signals in one frame of the liquid crystal display device. , based on the difference between the vertical synchronization signal and the horizontal synchronization signal of the video signal, a pulse having a period longer than the period of the vertical synchronization signal, which is centered around the frame in which the image signal is to be captured, and which is located before and after the frame in which the image signal is to be captured. A pulse shaping circuit for shaping pulses capable of counting horizontal synchronization signals equal to the difference between the pulses is provided, and the pulses produced by the pulse shaping circuit are used as new vertical synchronization signals to import the image signal into the frame memory. A liquid crystal display device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16955288U JPH0290888U (en) | 1988-12-28 | 1988-12-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16955288U JPH0290888U (en) | 1988-12-28 | 1988-12-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0290888U true JPH0290888U (en) | 1990-07-18 |
Family
ID=31459719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16955288U Pending JPH0290888U (en) | 1988-12-28 | 1988-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0290888U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6292995A (en) * | 1985-10-18 | 1987-04-28 | シャープ株式会社 | Liquid crystal display unit |
-
1988
- 1988-12-28 JP JP16955288U patent/JPH0290888U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6292995A (en) * | 1985-10-18 | 1987-04-28 | シャープ株式会社 | Liquid crystal display unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0290888U (en) | ||
| JPS60100847U (en) | Device with display interface | |
| JPS62149087U (en) | ||
| JPS59180567U (en) | detection circuit | |
| JPS63139645U (en) | ||
| JPS6398589U (en) | ||
| JPS62135281U (en) | ||
| JPS61377U (en) | television receiver | |
| JPH01172094U (en) | ||
| JPS5911356U (en) | Transaction processing device display device | |
| JPS6085474U (en) | Vertical pulse separation circuit | |
| JPS61137993U (en) | ||
| JPH0221869U (en) | ||
| JPS58108473U (en) | Speed sense display device | |
| JPS6413856U (en) | ||
| JPH0438176U (en) | ||
| JPH0425383U (en) | ||
| JPS63146896U (en) | ||
| JPS5881725U (en) | Magnetic head position indicator | |
| JPH03120182U (en) | ||
| JPS5977199U (en) | Two-part panel image display device | |
| JPS5828467U (en) | synchronous circuit | |
| JPH02113170U (en) | ||
| JPS59164382U (en) | control monitoring system | |
| JPS59189376U (en) | Color printer device using R, G, B input method |