JPS54106193A - Driving method for matrix type liquid crystal display unit - Google Patents
Driving method for matrix type liquid crystal display unitInfo
- Publication number
- JPS54106193A JPS54106193A JP1376678A JP1376678A JPS54106193A JP S54106193 A JPS54106193 A JP S54106193A JP 1376678 A JP1376678 A JP 1376678A JP 1376678 A JP1376678 A JP 1376678A JP S54106193 A JPS54106193 A JP S54106193A
- Authority
- JP
- Japan
- Prior art keywords
- positive
- negative
- liquid crystal
- source
- voltage
- 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
Abstract
PURPOSE: To improve the contrast of display by converting the source voltage applied from the source electrode to the positive and negative pulses with the specified rate of pulse width.
CONSTITUTION: Liquid crystal is activated at esch intersection of source electrode line S1, S2, ... and gate electrode line G1, G2,.... In the unit which forms floating capacity 5 with thin membrane transistor TFT3, source voltage Vsi consisting of a pair of positive and negative pulses is applied to the source line located at i. Ratio of positive width to negative width of pulse width is set in such a way that when TFT is off, charging and discharging is made in the positive and negative directions until the effective voltage becomes O electric potential, thus correcting the difference of characteristics on the positive and negative sides of TFT. When the pulses of gate voltage VGj, VGj+1, VGj+2,... are applied to the gate lines from j to j+2 in conformity with the pulse width of source voltage applied to the liquid crystal, the picture elements from ij to ij+2 are written and the picture element of ij+1 is not written. In such a case, the voltage from other written picture element is not applied to the unwritten picture element, thus improving the contrast of display.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53013766A JPS6051119B2 (en) | 1978-02-08 | 1978-02-08 | Driving method of matrix type liquid crystal display device |
GB7904352A GB2016780B (en) | 1978-02-08 | 1979-02-07 | Type liquid crystal display |
GB8101865A GB2064194B (en) | 1978-02-08 | 1979-02-07 | Matrix type liquid crystal display device |
DE2904596A DE2904596C2 (en) | 1978-02-08 | 1979-02-07 | Liquid crystal display matrix |
DE2953769A DE2953769C2 (en) | 1978-02-08 | 1979-02-07 | Liquid crystal display matrix with thin film transistor arrangement |
US06/229,846 US4386352A (en) | 1978-02-08 | 1981-01-30 | Matrix type liquid crystal display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53013766A JPS6051119B2 (en) | 1978-02-08 | 1978-02-08 | Driving method of matrix type liquid crystal display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54106193A true JPS54106193A (en) | 1979-08-20 |
JPS6051119B2 JPS6051119B2 (en) | 1985-11-12 |
Family
ID=11842368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53013766A Expired JPS6051119B2 (en) | 1978-02-08 | 1978-02-08 | Driving method of matrix type liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6051119B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5621193A (en) * | 1979-07-30 | 1981-02-27 | Sharp Kk | Drive method of liquid crystal display unit |
JPS5821863A (en) * | 1981-07-31 | 1983-02-08 | Seiko Epson Corp | Active matrix substrate |
JPS60151615A (en) * | 1984-01-19 | 1985-08-09 | Matsushita Electric Ind Co Ltd | Driving method of liquid-crystal display device |
JPS6156327A (en) * | 1984-08-28 | 1986-03-22 | Canon Inc | Driving method of display panel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01289719A (en) * | 1988-05-17 | 1989-11-21 | Kinugawa Rubber Ind Co Ltd | Weather strip |
JPH02105019U (en) * | 1989-02-06 | 1990-08-21 |
-
1978
- 1978-02-08 JP JP53013766A patent/JPS6051119B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5621193A (en) * | 1979-07-30 | 1981-02-27 | Sharp Kk | Drive method of liquid crystal display unit |
JPS5821863A (en) * | 1981-07-31 | 1983-02-08 | Seiko Epson Corp | Active matrix substrate |
JPH0330308B2 (en) * | 1981-07-31 | 1991-04-26 | ||
JPS60151615A (en) * | 1984-01-19 | 1985-08-09 | Matsushita Electric Ind Co Ltd | Driving method of liquid-crystal display device |
JPS6156327A (en) * | 1984-08-28 | 1986-03-22 | Canon Inc | Driving method of display panel |
Also Published As
Publication number | Publication date |
---|---|
JPS6051119B2 (en) | 1985-11-12 |
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