公开(公告)号：US09275584B2

公开(公告)日：2016-03-01

申请号：US14158648

申请日：2014-01-17

Applicant: GETAC TECHNOLOGY CORPORATION

Inventor： Chun-Chi Wang ,  Yo-Ching Wu

IPC: G09G3/34

CPC classification number: G09G3/3406 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2320/064 ,  G09G2380/00

Abstract: A brightness control apparatus and a brightness control method are provided. A conversion unit converts a first pulse width modulating signal, indicating brightness of a display, into a DC signal. An analog to digital conversion unit converts the DC signal into a second pulse width modulating signal according to at least one of an environmental condition and a load state of an electronic device, wherein the second pulse width modulating signal controls the brightness of the display.

Abstract translation: 提供亮度控制装置和亮度控制方法。 转换单元将指示显示器的亮度的第一脉冲宽度调制信号转换为DC信号。 模数转换单元根据电子设备的环境条件和负载状态中的至少一个将DC信号转换成第二脉冲宽度调制信号，其中第二脉冲宽度调制信号控制显示器的亮度。