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发明授权
CN106297674B 一种背光亮度控制方法、装置及显示设备 有权

一种背光亮度控制方法、装置及显示设备
摘要：
本发明公开了一种背光亮度控制方法、装置及显示设备，主要内容包括：根据每个背光分区的背光值确定每个背光分区的背光占空比，确定当前背光模组中包含的多个背光区域，并统计每个背光区域的平均背光值，根据每个背光区域的平均背光值以及预设的增益曲线，查找每个背光区域对应的增益值，并根据增益值对相应的背光区域的背光电流值进行调整，确定出每个背光区域中增益背光电流值，以该背光区域的增益背光电流值和该背光区域中每个背光分区的背光占空比生成驱动信号，以控制该背光区域中每个背光分区的背光亮度，从而，使得不同背光区域的背光电流值不同，可以更为有效地提升显示过程中画面的图像层次感和对比度。
摘要（英）：

Some embodiments of the invention disclose a method and apparatus for controlling backlight brightness, and a display device, and the method for controlling backlight brightness includes: determining a backlight duty ratio of each backlight zone according to a backlight value of each backlight zone; determining a plurality of backlight areas in the current backlight module, and calculating statistically the average backlight value of each backlight area; searching for a gain corresponding to each backlight area according to the average backlight value of the backlight area, and a preset gain curve, and determining a backlight current value of the backlight area to which a gain is applied, according to the gain; and generating a driver signal according to the backlight current value of the backlight area to which the gain is applied, and the backlight duty ratio of each backlight zone in the backlight area to control backlight brightness of each backlight zone in the backlight area, so that there are different backlight current values of the different backlight areas, thus improving more effectively the contrast and the hierarchical sense of an image being displayed.

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