Image display device and driving method of the same
US8842112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2008 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Jan 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display device equalizes an amount of shift in Vth of a driving element for each pixel. Provided are a light-emitting element (D1) that emits light corresponding to current flowing therethrough; a driving element (Q1) that is connected to the light-emitting element (D1) and controls light emission of the light-emitting element (D1); and a controller (U1) that detects a threshold voltage of the driving element (D1) and controls an applied voltage to the driving element (D1) based on the detected threshold voltage. The controller (U1) applies voltages for a reverse or forward bias to the driving element (D1) based on a comparison result between the threshold voltage and a predetermined threshold when the light-emitting element (D1) does not emit light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.