AMOLED display driving device with switching frame rate
US10964259B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2020 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jul 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0435
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An AMOLED display driving device is switchable among plural frame rates, and includes a timing control unit, a panel driving unit, and an emission duty ratio control unit. Based on an input frame rate, the timing control unit changes the display time and V-blanking time in the frame period corresponding to the frame rate by extending V-blanking time, so that the display time in the frame period corresponding to the frame rate is equal to a standard display time. Based on the input frame data and frame timing, the panel driving unit drives an AMOLED display panel to display the input frame on the AMOLED display panel according to the changed display time and V-blanking time in the frame period corresponding to the frame rate. During the frame period corresponding to the frame rate, the emission duty ratio control unit applies plural emission pulses to the AMOLED display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.