Liquid crystal display as well as control method and device thereof
The technology of a liquid crystal display and a control method, which is applied in the field of devices, liquid crystal displays, and liquid crystal display control methods, can solve the problems of long display time, poor power supply effect, unsuitable display, etc., so as to ensure display effect and reduce power consumption Effect
Inactive Publication Date: 2014-09-10
BOE TECH GRP CO LTD
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[0003] And existing liquid crystal display generally has the setting of power saving, after the picture of liquid crystal display stops setting time, its backlight module and sequence controller can be closed, but, in order to avoid directly shutting down because of short-term picture stop Display, usually the time for this control to turn off the display is set relatively long, the effect of saving power on the whole will not be as expected, and the operation of directly turning off the display is not applicable to the situation where the display is displaying a picture
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[0018] The specific implementation manners of the liquid crystal display control method and device and the liquid crystal display provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0019] The inventor of the present application found that when the liquid crystal display displays a picture, if most areas of the picture are displayed with low brightness, for example, the picture shows a sword with a black background, and the proportion of the sword in the entire display picture is relatively small. , then we can think that the average brightness of the picture is low. At this time, by comparing the display effects of different backlight brightness emitted by the backlight module, it can be seen that the viewer's eyes have no effect on the picture when they perceive the high-brightness backlight and the low-brightness backlight. Therefore, the inventor thinks that when the display module displays su...
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The invention discloses a liquid crystal display as well as a control method and device thereof. When a display module in the liquid crystal display displays a low-brightness picture, a display effect of the picture can not be influenced in case of reducing the backlight brightness emitted by the backlight module; and different working currents can be loaded when the display module displays the pictures with different brightness, so that the displayed picture brightness can be determined by detecting the working current of the display module. Therefore, in the control method of the liquid crystal display provided by the embodiment of the invention, the corresponding relationship between the working current of the display module and a driving current of the backlight module is established in advance according to the principle, then the driving current of the backlight module is adjusted according to the detected working current of the display module so as to reduce the backlight brightness emitted by the backlight module when the picture with low brightness is displayed, thus achieving the effects of reducing power consumption of the backlight module and saving electricity on the basis of ensuring the display effect.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a control method and device for a liquid crystal display and a liquid crystal display. Background technique [0002] At present, due to the increasing importance of environmental protection awareness, the demand for energy conservation is also receiving increasing attention. The liquid crystal display commonly used in daily life is a passive light-emitting device, which is composed of a display module, that is, a liquid crystal display screen and a backlight module. Among them, the power consumption of the backlight module accounts for most of the power consumption of the entire liquid crystal display. [0003] And existing liquid crystal display generally has the setting of power saving, after the picture of liquid crystal display stops setting time, its backlight module and timing controller can be closed, but, in order to avoid directly shutting down because of short-term pic...
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IPC IPC(8): G09G3/34G09G3/36
Inventor 戴其兵
Owner BOE TECH GRP CO LTD