Display panel, pixel driving circuits, and display device
US12324311B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Apr 13, 2022 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Nov 11, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/123
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display panel, a pixel driving circuit, and a display device are provided. Driving transistors include a first transistor and a second transistor connected in parallel. An absolute value of a threshold voltage of the first transistor is greater than an absolute value of a threshold voltage of the second transistor. A carrier mobility of the first transistor is greater than a carrier mobility of the second transistor. A driving current is affected by characteristics of the second transistor and an increase speed is slowed down, which improves a problem of color unevenness of the display panel at low brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.