Dynamic white balance controller of display backlight module

This invention relates to a dynamic white balance controller of a display backlight module, in which several LEDs are disposed in a light box such that each of the LEDs can emit red, blue, or green light to create white light by the combination thereof. In addition, a color sensor is also disposed i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HWANG, CHIUAN, CHANG, CHI-KONG, LIAO, LUN-DE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DISPLAY EDUCATION PHYSICS SEALS
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Beschreibung
Zusammenfassung:	This invention relates to a dynamic white balance controller of a display backlight module, in which several LEDs are disposed in a light box such that each of the LEDs can emit red, blue, or green light to create white light by the combination thereof. In addition, a color sensor is also disposed in the light box for sensing the wavelength of the light and outputting the wavelength to a control unit. The control unit can then output a control signal in light of the wavelength to a voltage driving unit capable of driving the LEDs. Therefore, this invention can dynamically compensate the wavelength default value of the white balance when the colors of the backlight module decay.