Transition film of flat panel display and a method using the same
US7399562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jul 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133562
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A flat panel display comprising a liquid crystal module, a backlight module, and a transition film is disclosed. The backlight module provides light to the liquid crystal module, and the transition film is disposed above the liquid crystal module. The transition film comprises a material capable of filtering light of specific wavelengths. The material can be organic dye material phthal-ocyanine Copper (CuPc) or C32H16N8Cu. The transition film can be an evaporation layer, so the transition film can be formed on the polarizer of the liquid crystal module. The transition film has a transparency ratio with respect to blue light and a transparency ratio with respect to red light, and the ratios range from 0.5 to 0.95. The transparency ratio with respect to blue light is greater than that with respect to red light. The backlight module comprises one or more light emitting diodes (LEDs) to provide light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.