Method for driving display device
US5488387A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Feb 28, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0247
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A frame thinning out system has been used as a driving method for a display device for creating a gradational display with several brightness levels on the screen of a liquid crystal display device and the like. This driving method creates a gradational display by setting a plurality of frame time periods, during which each of pixels on the screen of the display device are controlled for displaying an image, as one integration time period, and turning on pixels only for a number of specified frame time periods corresponding to a brightness level to be displayed, out of all frame time periods within the integration time period. In this driving method, all pixels of the display device are grouped into multiple groups, each of which is composed of a plurality of pixels contiguous to each other. The number of pixels to be turned on in each frame time period within one integration time period is selected corresponding to the specified gradation data within the same group. Further, the frame time period during which the number of pixels turned on is kept constant and is set to a period short enough such that a human being does not notice display flicker. In this way, viewing a plurality …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.