Display device
US10678077B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2019 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Apr 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device comprises a backlight module, a display panel disposed on the backlight module, and an electrically controlled viewing angle switching device disposed on the backlight module and disposed in a stacking manner with the display panel. The display panel comprises a panel module and a first polarizer. There is an air layer or a bonding layer between the electrically controlled viewing angle switching device and the display panel. The panel module is disposed between the first polarizer and the electrically controlled viewing angle switching device. The electrically controlled viewing angle switching device comprises a liquid crystal cell, at least one phase compensation film and two second polarizers. The liquid crystal cell is disposed between the two second polarizers. The display device can switch between an anti-peeping mode and a sharing mode in an electrically controlled manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.