JPS6438729A - Liquid crystal matrix panel driving circuit - Google Patents
Liquid crystal matrix panel driving circuitInfo
- Publication number
- JPS6438729A JPS6438729A JP19464687A JP19464687A JPS6438729A JP S6438729 A JPS6438729 A JP S6438729A JP 19464687 A JP19464687 A JP 19464687A JP 19464687 A JP19464687 A JP 19464687A JP S6438729 A JPS6438729 A JP S6438729A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- period
- matrix panel
- crystal matrix
- 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.)
- Pending
Links
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
PURPOSE:To prevent the deterioration of a contrast ratio even in case of a liquid crystal matrix panel in which the number of scanning side electrodes exceeds the number of effective scanning lines of one field portion, by executing a driving method by which the number of times of selection per unit time of an arbitrary picture element is not decreased even if an interlace scan is executed. CONSTITUTION:As for a scanning side electrode of a liquid crystal matrix panel, one piece each in an effective scanning period and a horizontal retrace line period, that is, two pieces are selected in one horizontal scanning period, and in one field period, the scanning side electrode corresponding to the number of effective scanning lines of one frame (two fields) period is selected. In such a way, even if an interlace scan is executed by using a liquid crystal matrix panel in which the number of scanning side electrodes exceeds the number of effective scanning lines of one field portion, all the scanning side electrodes can always select every field, and the number of times of selection per unit time of a picture element is not decreased than usual, therefore, the deterioration of a contrast ratio can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19464687A JPS6438729A (en) | 1987-08-04 | 1987-08-04 | Liquid crystal matrix panel driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19464687A JPS6438729A (en) | 1987-08-04 | 1987-08-04 | Liquid crystal matrix panel driving circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6438729A true JPS6438729A (en) | 1989-02-09 |
Family
ID=16327972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19464687A Pending JPS6438729A (en) | 1987-08-04 | 1987-08-04 | Liquid crystal matrix panel driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438729A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980058471A (en) * | 1996-12-30 | 1998-10-07 | 김영환 | LCD |
JP2001209357A (en) * | 2000-01-28 | 2001-08-03 | Toshiba Corp | Planar display device |
-
1987
- 1987-08-04 JP JP19464687A patent/JPS6438729A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980058471A (en) * | 1996-12-30 | 1998-10-07 | 김영환 | LCD |
JP2001209357A (en) * | 2000-01-28 | 2001-08-03 | Toshiba Corp | Planar display device |
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