Self-adaption control method and system of DLED TV backlight

The invention discloses a self-adaption control method and system of a DLED TV backlight. The method comprises the following steps: based on a heat sensor on a diffuser plate, obtaining a first temperature value in a DLED backlight module optical cavity; judging whether the first temperature value i...

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Bibliographische Detailangaben
Hauptverfasser:	OU HANBIAO, ZHUANG HONGDONG, ZHOU XIAOSONG
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses a self-adaption control method and system of a DLED TV backlight. The method comprises the following steps: based on a heat sensor on a diffuser plate, obtaining a first temperature value in a DLED backlight module optical cavity; judging whether the first temperature value is beyond a preset first temperature threshold or not; if the temperature value is beyond the preset first temperature threshold, controlling the color temperature generated from LED array reduction, and controlling interval narrowing among a plurality of brightening pieces. According to the embodiment, when the temperature value surpasses the temperature threshold, LED array reduction is controlled and color temperature emission is reduced, so that continuous temperature increase is reduced; and besides, a series of supplements for an LED array emitting light source can be achieved due to the intervals among the brightening pieces; when the color temperature decreases, the intervals among the brightening pieces are decreased, so that a certain supplement effect for light brightness can be achieved, and color temperature change due to LED array deletion is reduced.