Organic light emitting display and method of compensating for threshold voltage thereof
US9330605B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0233
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display and a method of compensating for a threshold voltage thereof are disclosed. The organic light emitting display includes a display panel including a plurality of pixels, a gate driving circuit generating first and second threshold voltage sensing gate pulses, a data driving circuit which supplies a threshold voltage sensing data voltage to the pixels in response to the first threshold voltage sensing gate pulse and detects a source voltage of a driving thin film transistor (TFT) of each pixel as a sensing voltage in response to the second threshold voltage sensing gate pulse, and a timing controller which modulates input digital video data for the image display based on a change in the sensing voltage and generates digital compensation data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.