Backlight module with two sets of LEDs, liquid crystal display and control method for driving the backlight module
US9726930B2 · kind B2 · utility
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Key dates
| Filing date | Jun 18, 2013 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Jul 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module, a liquid crystal display and a control method for driving the backlight source, the backlight module comprising an LED backlight source and a driving circuit, the LED backlight source comprising first LEDs each formed of a blue light chip, red phosphor powder and green phosphor powder, and second LEDs each formed of a blue light chip, a green light chip and red phosphor powder, and the driving circuit comprising driving circuit modules for driving the first LEDs and the second LEDs respectively. The liquid crystal display includes the above-mentioned backlight module and the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.