Display device and method of operating the same
US8988410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Apr 16, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3655
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display panel includes a display pixel displaying an image in response to a common voltage and a data voltage and a sensing pixel outputting a feedback voltage in response to the common voltage and a reference voltage; and a driving circuit unit supplying the data voltage and the reference voltage to the display pixel and the sensing pixel, respectively. The driving circuit unit includes a common voltage estimating part comparing the reference voltage and the feedback voltage to generate a counter signal having a counter value that is stepwise varied according to the comparing of the reference voltage and the feedback voltage; and a common voltage adjusting part stepwise varying the common voltage supplied to the display panel in response to the counter value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.