JPS6472122A - Electrooptic device using tft array - Google Patents
Electrooptic device using tft arrayInfo
- Publication number
- JPS6472122A JPS6472122A JP22817887A JP22817887A JPS6472122A JP S6472122 A JPS6472122 A JP S6472122A JP 22817887 A JP22817887 A JP 22817887A JP 22817887 A JP22817887 A JP 22817887A JP S6472122 A JPS6472122 A JP S6472122A
- Authority
- JP
- Japan
- Prior art keywords
- gate line
- stage
- current
- last
- holding capacitor
- 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
Landscapes
- Liquid Crystal (AREA)
Abstract
PURPOSE:To prevent an abnormal voltage from being applied to the holding capacitor of a current stage and to improve the display quality by applying a gate pulse to the gate line of the current stage after a time constant determined by at least the resistance and capacity of the gate line of the last stage. CONSTITUTION:The current stage gate pulse 11 is applied to the current stage gate line 3 after time is elapsed by the time constant tau determined by the capacity of the last-stage gate line 2. Thus, the TFT array is driven to write a signal in the holding capacitor 5 by the TFT 7 on the current-stage gate line 3 in an area where variation in the transient variation of the last-stage gate line 3 is sufficiently small. Consequently, an abnormal voltage is prevented from being applied to the holding capacitor 5 to improve the display quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22817887A JPS6472122A (en) | 1987-09-11 | 1987-09-11 | Electrooptic device using tft array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22817887A JPS6472122A (en) | 1987-09-11 | 1987-09-11 | Electrooptic device using tft array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6472122A true JPS6472122A (en) | 1989-03-17 |
Family
ID=16872436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22817887A Pending JPS6472122A (en) | 1987-09-11 | 1987-09-11 | Electrooptic device using tft array |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6472122A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63118128A (en) * | 1986-11-05 | 1988-05-23 | Oki Electric Ind Co Ltd | Driving method for active matrix type liquid crystal display device |
| JPS6460161A (en) * | 1987-08-31 | 1989-03-07 | Matsushita Electric Ind Co Ltd | Method for driving active matrix liquid crystal panel |
-
1987
- 1987-09-11 JP JP22817887A patent/JPS6472122A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63118128A (en) * | 1986-11-05 | 1988-05-23 | Oki Electric Ind Co Ltd | Driving method for active matrix type liquid crystal display device |
| JPS6460161A (en) * | 1987-08-31 | 1989-03-07 | Matsushita Electric Ind Co Ltd | Method for driving active matrix liquid crystal panel |
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