Display device and method for driving the same
US10796659B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Apr 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is adopted a gate driver with a system of applying a direct current voltage as an active scanning signal to a gate bus line through a buffer transistor in a unit circuit that composes a shift register, and a display device is provided with a direct current voltage generation circuit that generates the direct current voltage. The direct current voltage generation circuit changes a voltage level of the direct current voltage in each frame period. For example, when a direct current voltage input terminal is provided on a vertical scanning end side, the direct current voltage generation circuit gradually decreases the voltage level of the direct current voltage in each frame period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.