OLED pixel driving circuit, driving method thereof and display device including the same
US10885845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Aug 4, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides an OLED pixel driving circuit, a driving method thereof and a display device including the same. The OLED pixel driving circuit includes: a first transistor, providing driving current to an organic light emitting diode, and comprising a first terminal, second terminal and control terminal coupled to a first node, second node and third node respectively; a power switch unit, coupled between a power supply voltage and the second node; a first switch unit, coupled between a data line and a fourth node to couple a data voltage signal from the data line to the fourth node; a second switch unit, coupled between the third node and the second node to enable the first transistor connected as a diode; a first capacitor, coupled between the fourth node and the first node; and a second capacitor, coupled between the fourth node and the second node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.