Display device
US9111893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Feb 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device including pixels, in which each of the pixels includes: a positive power supply line and a negative power supply line; a drive transistor that drives a current in a current path according to a gate-source voltage; an organic EL element including an anode and a cathode that are disposed in the current path; an electrostatic storage capacitor that stores the gate-source voltage by having a first electrode connected to a gate of the drive transistor, and a second electrode connected to a source of the drive transistor; a switch transistor that switches a conduction state between the second electrode and a data line; and a switch transistor for applying a negative power supply line voltage to the first electrode. A potential difference between a first power supply line voltage VDDp and a second power line voltage VEEp decreases with proximity to the center of a display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.