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公开(公告)号：US12027127B2
公开(公告)日：2024-07-02
申请号：US18265651
申请日：2021-10-19
发明人： Kiwon Lee , Youngjin Lim , Chenghui Yan
CPC分类号： G09G3/3406 , G09G3/36 , G09G2320/041 , G09G2320/0626 , G09G2330/021
摘要： A control method for a backlight circuit includes: obtaining a plurality of pieces of dimming data in a preset period of time; determining total accumulated electric energy received by the backlight source according to the plurality of pieces of dimming data in the preset period of time; and generating a first voltage control signal when the total accumulated electric energy reaches a preset electric energy threshold. The dimming data is used to control a backlight source to emit light. The preset period of time is from an initial moment of continuous light emission of the backlight source to a current moment. The first voltage control signal is used to reduce the working voltage of the backlight source. When the total accumulated electric energy reaches the preset electric energy threshold, reducing the working voltage of the backlight source does not affect a light emitting brightness of the backlight source.
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