JPS6431129A - Driving device - Google Patents
Driving deviceInfo
- Publication number
- JPS6431129A JPS6431129A JP18829887A JP18829887A JPS6431129A JP S6431129 A JPS6431129 A JP S6431129A JP 18829887 A JP18829887 A JP 18829887A JP 18829887 A JP18829887 A JP 18829887A JP S6431129 A JPS6431129 A JP S6431129A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- power source
- liquid crystal
- selection signal
- scanning
- 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
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
PURPOSE:To obtain a driving device for a display panel which eliminates a flicker of display by providing a means which outputs a 1st scanning selection signal with one polarity voltage and a 2nd scanning selection signal with the other polarity voltage, a means where a signal side driving means outputs an alternating voltage, etc. CONSTITUTION:On a ferroelectric liquid crystal panel 111 where matrix electrodes are arranged, scanning lines 112 and data lines 113 are wired while intersecting each other and ferroelectric liquid crystal is arranged between the scanning lines 112 and data lines at the intersection parts. A scan-side driving voltage generating power source 119 outputs voltages V1, V2 and Vc the voltage V1 and V2, for example, are used as a power source for the scanning selection signal, and the voltage Vc is used as a power source for scan nonselection signals. Ferroelectric liquid crystal of chiral smetic C phase (SmC*) or H phase (SmH*) is used suitably as bistable liquid which is used by this driving method. Consequently, a flicker is eliminated and display quantity is improved.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62188298A JPH07109457B2 (en) | 1987-07-27 | 1987-07-27 | Liquid crystal device |
| US07/164,504 US5182549A (en) | 1987-03-05 | 1988-03-04 | Liquid crystal apparatus |
| EP88103538A EP0281160B1 (en) | 1987-03-05 | 1988-03-07 | Liquid crystal apparatus |
| DE3853893T DE3853893T2 (en) | 1987-03-05 | 1988-03-07 | Liquid crystal device. |
| US08/274,155 US5488388A (en) | 1987-03-05 | 1994-07-14 | Liquid crystal apparatus |
| US08/471,157 US6046717A (en) | 1987-03-05 | 1995-06-06 | Liquid crystal apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62188298A JPH07109457B2 (en) | 1987-07-27 | 1987-07-27 | Liquid crystal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6431129A true JPS6431129A (en) | 1989-02-01 |
| JPH07109457B2 JPH07109457B2 (en) | 1995-11-22 |
Family
ID=16221169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62188298A Expired - Fee Related JPH07109457B2 (en) | 1987-03-05 | 1987-07-27 | Liquid crystal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07109457B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0413273U (en) * | 1990-05-24 | 1992-02-03 | ||
| JPH0618852A (en) * | 1992-06-30 | 1994-01-28 | Sharp Corp | Driving method for ferroelectric liquid crystal display device |
| US5995076A (en) * | 1996-01-16 | 1999-11-30 | Canon Kabushiki Kaisha | Liquid crystal apparatus using different types of drive waveforms alternately |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180937A (en) * | 1987-01-23 | 1988-07-26 | Citizen Watch Co Ltd | Driving method for matrix type liquid crystal display body |
-
1987
- 1987-07-27 JP JP62188298A patent/JPH07109457B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63180937A (en) * | 1987-01-23 | 1988-07-26 | Citizen Watch Co Ltd | Driving method for matrix type liquid crystal display body |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0413273U (en) * | 1990-05-24 | 1992-02-03 | ||
| JPH0618852A (en) * | 1992-06-30 | 1994-01-28 | Sharp Corp | Driving method for ferroelectric liquid crystal display device |
| US5995076A (en) * | 1996-01-16 | 1999-11-30 | Canon Kabushiki Kaisha | Liquid crystal apparatus using different types of drive waveforms alternately |
| KR100258169B1 (en) * | 1996-01-16 | 2000-06-01 | 미다라이 후지오 | Liquid Crystal Apparatus using different Types of Drive Waveforms alternately |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07109457B2 (en) | 1995-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |