Display device and driving method thereof
US9349313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2013 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Jul 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a light emitting diode that emits a light in response to a current supplied thereto, a constant current circuit that includes a first transistor to control an amount of the current supplied to the light emitting diode, and a pixel circuit that includes a switching circuit including a second transistor to switch the supply of the current to the light emitting diode and a capacitor including a first terminal connected to a gate terminal of the second transistor and a second terminal connected to a signal line that changes a voltage of the other terminal. The first transistor and the second transistor are connected between a first power supply line and an anode of the light emitting diode including a cathode connected to a second power supply line in series.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.