Alignment deviation detection method and apparatus thereof, data compensation method and apparatus thereof
US11852921B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 27, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0693
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An alignment deviation detection method and apparatus of a display panel, a data compensation method and apparatus. The method includes: providing a first data signal for causing the dimming screen to display an alignment dimming picture including a first alignment pattern; providing a second data signal for causing the display screen to display an alignment display picture including a second alignment pattern; under a control of the first data signal, making the dimming screen display the alignment dimming picture, and under a control of the second data signal, making the display screen display the alignment display picture; according to a display situation of the second alignment pattern, determining an alignment state between the display screen and the dimming screen. An orthographic projection of the second alignment pattern on the dimming screen is preset to be at least partially aligned with and at least partially deviated from the first alignment pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.