Display device and driving method
US12249286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2023 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Dec 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device is disclosed. The display device comprises: a driving transistor drives a light emitting element; a scanning transistor connected between a first node of the driving transistor and a data line; and a sensing transistor connected between a second node of the driving transistor and a reference voltage line, wherein a period of time during which a characteristic value of the sensing transistor is sensed includes a voltage control period, a voltage tracking period, and a sampling period, and during the voltage control period, a first sensing voltage is supplied to the data line, a second sensing voltage is supplied to a third node of the driving transistor, a third sensing voltage is supplied to gate nodes of the scanning transistor and the sensing transistor, and a fourth sensing voltage is supplied to the reference voltage line. Accordingly, changes of characteristic values of the sensing transistor are sensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.