Panel display device
US9140928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Sep 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13362
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A panel display device is provided, which includes: a transparent back panel having a first surface and a second surface, where the first surface is adapted for reflecting incident lights from the outside, and the second surface is adapted for transmitting lights from the outside; a backlight source, disposed at one side of the second surface of the transparent back panel, which is adapted for emitting lights to the transparent back panel; a polarized grating, disposed at one side of the first surface of the transparent back panel, which includes a plurality of grating strips with gaps formed between neighboring grating strips, where the polarized grating enables the incident lights from the transparent back panel to be polarized and then pass through the gaps; a semiconductor switch array; and a transmission light valve array. The panel display device of the disclosure increase the utilization efficiency of lights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.