Method of driving an organic light emitting diode (OLED) pixel, a system for driving an OLED pixel and a computer-readable medium
US8749456B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Oct 4, 2010 |
| Grant date | Jun 10, 2014 |
| Priority date | — |
| Expiry date | Dec 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A new drive scheme is provided for OLED displays that uses a pulsed drive mode. The pulsed drive mode results in a reduced duty cycle for pixel operation. The peak OLED current is increased correspondingly to maintain a constant average luminance over the frame period so that there is no brightness loss. The method, system and computer-readable medium according to the present innovation uses a blanking signal to set the OLED pixel to black by discharging a capacitive element prior to re-programming the OLED pixel during a next synchronization cycle. An organic light emitting diode (OLED) pixel system is provided. A computer-readable medium having stored thereon computer-executable instructions is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.