Display device having a pre-driving voltage for each subpixel
US11587509B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Nov 9, 2021 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Nov 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device compensates a threshold voltage Vth of a driving transistor according to a source follower internal compensation method. The threshold voltage Vth of the driving transistor is sampled in advance before one horizontal period H, so that a sufficient time for sampling the threshold voltage Vth of the driving transistor can be obtained even in a high-speed or high-resolution display device. Furthermore, the compensation rate of the internal compensation circuit is improved to reduce luminance deviation between the pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.