Method of driving display panel and display apparatus for performing the same
US8773339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2011 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Jan 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0214
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of driving a display panel includes applying a common voltage to the display panel, sensing a frequency of the display panel to generate a frequency signal, adjusting a gain of an operational amplifier based on the frequency signal, receiving a feedback common voltage from the display panel, and compensating the common voltage using an input resistor, the operational amplifier and a feedback resistor based on the feedback common voltage to apply the compensated common voltage to the display panel. The operational amplifier includes an inverting input terminal connected to the input resistor, a non-inverting input terminal to which a reference common voltage is applied and an output terminal. The feedback resistor is between the inverting input terminal and the output terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.