Photoalignment method and photoalignment device
US11275275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2020 |
| Grant date | Mar 15, 2022 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a photoalignment method and a photoalignment device, including: adjusting direction of light ray emitted from light source so that first angle is formed between that and XOY plane, and second angle is formed between projection of that on XOY plane and Y-axis; adjusting angle of polarizing plate so that it is parallel to XOY plane, and its light transmission axis is parallel to projection of that on XOY plane; moving array substrate along negative direction of Y-axis to perform exposure operation on array substrate; and moving color filter substrate, which rotated by 180 degrees, in negative direction of Y-axis to perform exposure operation on color filter substrate, wherein color filter substrate has exposure regions which are completely identical, in position and number, to those of array substrate, and each exposure region is exposed to light in identical direction to that of corresponding exposure region of array substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.