Backlight module with heat dissipation enhanced with coating of mixed materials and display device using same
US8727571B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133628
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a backlight module that enhances heat dissipation of LED light sources and a display device. The backlight module that enhances heat dissipation of LED light sources includes an LED light strip, a back panel, a mixed coating layer including two materials, and a thermal diode/triode. The LED light strip is arranged on the back panel. The mixed coating layer is interposed between the LED light strip and the back panel and contacts both for transfer of heat. The thermal diode/triode is connected to the mixed coating layer to control temperature of the mixed coating layer. In operation, through regulation of temperature, the thermal diode/triode makes vibration frequencies of the two materials of the mixed coating layer consistent with each other at a given temperature. The display device includes the above descried backlight module that enhances heat dissipation of LED light sources. The present invention realizes obstruction free transfer of heat from the LED light strip to the aluminum extrusion or the back panel, eliminating bottleneck of heat conduction path; reduces the temperature of the LED light strip, extending the overall lifespan of the LED …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.