Methods and storage media for dimming a display screen
US11037529B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2020 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method includes acquiring a parameter value of a display screen to be adjusted; comparing the parameter value to a first set threshold and a second set threshold less than the first set threshold respectively. When the parameter value is equal to or greater than the first set threshold, perform dimming on the display screen, under a one-pulse condition, via both emission dimming mode and source dimming mode, or source dimming mode, to adjust the duty ratio of PWM to a first duty ratio. When the parameter value is less than the first set threshold, and is equal to or greater than the second set threshold, perform dimming on the display screen, under a multi-pulse condition, via both emission dimming mode and source dimming mode, or source dimming mode, to adjust the duty ratio of PWM to a second duty ratio less than the first duty ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.