JPH0245520U - - Google Patents
Info
- Publication number
- JPH0245520U JPH0245520U JP12167788U JP12167788U JPH0245520U JP H0245520 U JPH0245520 U JP H0245520U JP 12167788 U JP12167788 U JP 12167788U JP 12167788 U JP12167788 U JP 12167788U JP H0245520 U JPH0245520 U JP H0245520U
- Authority
- JP
- Japan
- Prior art keywords
- section
- drive voltage
- liquid crystal
- crystal display
- detection signal
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Liquid Crystal Display Device Control (AREA)
Description
第１図は本考案の原理構成を示すブロツク図、
第２図は本考案の一実施例を示すブロツク図、第
３図は本考案の一実施例の動作を説明するための
タイミングチヤート、第４図は本考案の一実施例
における応答特性を示す図、第５図は従来の液晶
表示駆動回路を示すブロツク図、第６図は駆動電
圧印加による受光量の時間的変化を示す図、第７
図は駆動電圧の実効値と応答時間との関係を示す
図である。
１…液晶表示器、２…ゲート部、３…検出部、
４…駆動電圧昇圧部、５…制御部、３０…駆動開
始検出部、４０…切替スイツチ、４１…トランジ
スタ。
Figure 1 is a block diagram showing the principle configuration of the present invention.
Fig. 2 is a block diagram showing one embodiment of the present invention, Fig. 3 is a timing chart for explaining the operation of one embodiment of the present invention, and Fig. 4 shows response characteristics in one embodiment of the present invention. 5 is a block diagram showing a conventional liquid crystal display drive circuit, FIG. 6 is a diagram showing temporal changes in the amount of light received due to application of a driving voltage, and FIG.
The figure is a diagram showing the relationship between the effective value of the drive voltage and the response time. 1...Liquid crystal display, 2...gate section, 3...detection section,
4... Drive voltage boosting section, 5... Control section, 30... Drive start detection section, 40... Changeover switch, 41... Transistor.
Claims (1)
ト部２と、該ゲート部２の動作を制御する制御部
５とを有してなる液晶表示駆動回路において、 前記ゲート部２の動作開始を検出して検出信号
Ｓｄを出力する検出部３と、 前記検出信号Ｓｄが発生すると同時に、前記駆
動電圧を所定の期間だけ昇圧させる駆動電圧昇圧
部４とを設けることを特徴とする液晶表示駆動回
路。[Claims for Utility Model Registration] A liquid crystal display drive circuit comprising a gate section 2 that supplies a predetermined drive voltage to a liquid crystal display 1, and a control section 5 that controls the operation of the gate section 2, comprising: A detecting section 3 that detects the start of operation of the gate section 2 and outputs a detection signal Sd, and a drive voltage boosting section 4 that boosts the drive voltage for a predetermined period at the same time that the detection signal Sd is generated are provided. Characteristic LCD display drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988121677U JPH0749464Y2 (en) | 1988-09-19 | 1988-09-19 | Liquid crystal display drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988121677U JPH0749464Y2 (en) | 1988-09-19 | 1988-09-19 | Liquid crystal display drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0245520U true JPH0245520U (en) | 1990-03-28 |
| JPH0749464Y2 JPH0749464Y2 (en) | 1995-11-13 |
Family
ID=31368905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988121677U Expired - Lifetime JPH0749464Y2 (en) | 1988-09-19 | 1988-09-19 | Liquid crystal display drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749464Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354498A (en) * | 1976-10-28 | 1978-05-17 | Citizen Watch Co Ltd | Driving system of liquid crystal display device |
| JPS5850515A (en) * | 1981-09-22 | 1983-03-25 | Asahi Glass Co Ltd | Liquid crystal driving circuit |
-
1988
- 1988-09-19 JP JP1988121677U patent/JPH0749464Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5354498A (en) * | 1976-10-28 | 1978-05-17 | Citizen Watch Co Ltd | Driving system of liquid crystal display device |
| JPS5850515A (en) * | 1981-09-22 | 1983-03-25 | Asahi Glass Co Ltd | Liquid crystal driving circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749464Y2 (en) | 1995-11-13 |
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