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Energy-saving device and method for liquid crystal screen and energy-saving liquid crystal screen

A liquid crystal screen, energy-saving control technology, applied in the direction of instruments, static indicators, etc., can solve the problem of excessive energy consumption of the liquid crystal screen, and achieve the effect of reducing energy consumption, good energy saving effect, and ensuring display quality.

Active Publication Date: 2011-05-04
KONKA GROUP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an energy-saving LCD screen, aiming to solve the problem of excessive energy consumption of the LCD screen in the prior art and improve the energy-saving effect of the LCD screen

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  • Energy-saving device and method for liquid crystal screen and energy-saving liquid crystal screen

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Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0038] When the LCD screen displays some pictures smaller in size than the LCD screen, its borders generally display a black screen, such as when a 16:9 LED side-backlit LCD screen displays images in 4:3 mode. When the liquid crystal screen is in a similar display mode, the invention properly reduces the brightness of the LED light on the side backlight board of the frame where the black screen area is located, thereby ensuring the display image quality of the liquid crystal screen and obtaining a better energy-saving effect on the liquid crystal screen. The invention can be applied to the liqui...

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Abstract

The invention provides an energy-saving device and method for a liquid crystal screen and an energy-saving liquid crystal screen. Four rectangular frames of the energy-saving liquid crystal screen are respectively provided with at least one side backlight plate, and the liquid crystal screen also comprises a side backlight plate driving circuit and an energy-saving control module, wherein the side backlight plate driving circuit is corresponding to the side backlight plate on one rectangular frame, and is used for controlling the brightness of an LED (light emitting diode) lamp on the side backlight plate; and the energy-saving control module is used for sending a control instruction to the side backlight plate driving circuit when the liquid crystal screen is at the mediate display mode, and instructs the side backlight plate driving circuit to reduce the brightness of the LED lamp on the side backlight plate of the frame in which a blank screen region is located. In the invention, the brightness of the LED lamp on the side backlight plate of the frame in which the blank screen region is located is reduced appropriately when the liquid crystal screen is at the mediate display modes, thus not only is the whole brightness impression of a display image not influenced, but also the energy consumption of the side backlight plate is reduced. The liquid crystal screen has preferable energy-saving effect as well as the display quality of the liquid crystal screen is ensured.

Description

【Technical field】 [0001] The invention belongs to the technical field of liquid crystal televisions, and in particular relates to a device and method for saving energy on a liquid crystal screen and an energy-saving liquid crystal screen. 【Background technique】 [0002] In recent years, LED (Light Emitting Diode) backlight technology has developed rapidly, gradually entered industrialization and formed a certain scale. Compared with traditional technologies, LED has obvious energy-saving advantages. Even saving a small amount of energy can alleviate energy consumption and environmental pollution to a certain extent, which is of great positive significance. [0003] figure 1 It is a plane structure diagram of a 42-inch 16:9 LED side-backlit LCD screen. As shown in the figure, the side-backlit LCD screen generally includes left backlight panels 101 arranged on the left and right sides of the LCD screen (when the LCD screen normally displays images) and the right backlight 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
Inventor 张君松
Owner KONKA GROUP
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