Liquid crystal display apparatus
US11270659B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Mar 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0626
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display apparatus includes: a liquid crystal display panel having a first substrate, a second substrate, and a vertical alignment type liquid crystal layer; and a control circuit configured to generate a display signal voltage. The first substrate has pixel electrodes to which the display signal voltage is applied, and a first alignment film. The second substrate has a counter electrode to which a common voltage is applied, and a second alignment film. Each pixel has liquid crystal domains having different reference alignment directions defined by the first and second alignment films. The pixel electrode has slits. The control circuit is configured to generate, as the display signal voltage, a voltage obtained by adding a predetermined offset voltage to an original voltage corresponding to a gray level. The offset voltage is substantially the same for gray levels higher than or equal to a predetermined intermediate gray level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.