Writing panel and manufacturing method therefor, and writing board
US11940701B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 12, 2021 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Oct 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13338
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A writing panel includes an array substrate, a flexible substrate disposed opposite to the array substrate, a liquid crystal layer disposed between the array substrate and the flexible substrate, and a plurality of spacers each in a shape of a column disposed on a surface of the array substrate proximate to the liquid crystal layer. The array substrate includes a base and a pixel driving circuit layer disposed on the base, and the pixel driving circuit layer includes a plurality of thin film transistors and a plurality of signal lines. An orthographic projection of each spacer on the base is non-overlapping with orthographic projections of the plurality of thin film transistors and the plurality of signal lines on the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.