Liquid crystal display device and backlight module thereof
US8902377B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Mar 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a backlight module which comprises a waveguide, an optical film, an elastic frame, and dowel pins. Wherein at least corners of the optical film is securely attached to the elastic frame, and wherein the dowel pints are attached to the elastic frame, and the optical film is disposed on top of the waveguide. Wherein corners of the optical film are provided with openings with which the optical films are readily positioned with respect to the waveguide by extending the dowel pins through the openings. And wherein the strength of the dowel pins is stronger than the strength of the elastic frame. The present invention further provides a liquid crystal display device incorporated with the backlight module disclosed above. By this arrangement, once the positioning of the optical films can he ensured, the optical quality of the backlight module can also be ensured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.