Liquid crystal display device realizing a small size by reducing number on input/output terminals
US5861862A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Feb 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reduction in the number of input/output terminals of the scan electrode drive circuit or signal electrode drive circuit to enable a compact liquid crystal display device. The scan direction is established by the polarity relationship between the sequential scan start signal TPR of the scan electrode drive circuit and the sequential scan timing signal CK. The left-to-right direction of the output data is established by the polarity relationship of the display data latch signal CL of the signal electrode drive circuit and the signal electrode drive voltage output signal CL2. By doing this, the number of input/output terminals required on the scan electrode drive circuit or the signal electrode drive circuit is reduced, enabling implementation of a compact liquid crystal display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.