Pixel circuit and driving method thereof, array substrate and display apparatus
US11615747B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2019 |
| Grant date | Mar 28, 2023 |
| Priority date | — |
| Expiry date | Mar 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0242
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a pixel circuit and a driving method thereof, an array substrate and a display apparatus. The pixel circuit includes a pixel sub-circuit. The pixel sub-circuit includes a first adjusting circuit and a second adjusting circuit. The first adjusting circuit is configured to receive a first data signal and a light emitting control signal to control a magnitude of a driving current used for driving a light emitting element to emit light; the second adjusting circuit is configured to receive a second data signal and a time control signal to control a time duration in which the driving current is applied to the light emitting element; and the time control signal changes within a time period during which the light emitting control signal allows the driving current to be generated. The pixel circuit can control the time duration in which the driving current is applied to the light emitting element, so that the light emitting element can realize display of various grayscales by controlling the light emitting time of the light emitting element, on the premise that the light emitting element operates at a relatively high current density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.