Driving method for OLED display panel
US10170051B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2017 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Jul 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides driving methods for OLED display panel. One method uses an improved driving circuit: disposing a sensing line (S(a)) corresponding to two columns of pixels (P), the a-th sensing line (S(a)) synchronously detecting threshold voltages of the light-emitting sub-pixels of odd-numbered rows in (2a−1)-th column pixels (P) and of even-numbered rows in 2a-th column pixels (P); or, the a-th sensing line (S(a)) synchronously detecting threshold voltages of the light-emitting sub-pixels of even-numbered rows in (2a−1)-th column pixels (P) and of odd-numbered rows in 2a-th column pixels (P); to perform detection on half of the sub-pixels in OLED display panel, to reduce the number of sensing lines by half to save cost. Another method improves the driving signal timing sequence to reduce the number of detection times of the sensing lines by half with obtaining the threshold voltages of all the sub-pixels of the OLED display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.