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Backlight display control device and backlight display control method

A backlight display and control device technology, which is applied to static indicators, instruments, etc., can solve problems such as light-emitting diode backlight flickering, affecting image display effect, and large backlight changes, so as to achieve a simple and convenient judgment method and avoid excessive changes , The effect of reducing power consumption

Active Publication Date: 2013-05-22
HISENSE VISUAL TECH CO LTD
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Problems solved by technology

[0003] However, when the image scene changes and the backlight changes greatly, the light-emitting diode backlight may flicker and affect the image display effect. flickering problem caused by

Method used

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  • Backlight display control device and backlight display control method
  • Backlight display control device and backlight display control method
  • Backlight display control device and backlight display control method

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Embodiment Construction

[0016] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, characteristics and details of the backlight display control device and backlight display control method of the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Its effect is described in detail below.

[0017] figure 1 It is a block diagram of the backlight display control device of the first embodiment of the present invention. see figure 1 , in this embodiment, the backlight display control device 100 includes a communication interface module 110 , a backlight coefficient calculation module 120 , a scene change judgment module 130 , a filter module 140 and a backlight display module 150 . The backlight display control device 100 will be described in detail below in conjunction with the backlight display control method using the ...

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Abstract

The invention relates to a backlight display control device. The device comprises a communication interface module, a backlight coefficient calculation module, a scene change judgment module, a filtering module and a backlight display module, wherein the backlight coefficient calculation module calculates a backlight coefficient according to first image information of each frame of image from the communication interface module; the backlight coefficient comprises a plurality of backlight coefficient values corresponding to a plurality of image sections of each frame of image; and the scene change judgment module calculates the cumulative sum of absolute values of differences among the backlight coefficient values of the image sections of the current frame of image and the previous frame of image, determines that a scene is not changed and sends the backlight coefficient of the current frame of image to the backlight display module if the cumulative sum is smaller than a predetermined backlight threshold value, and determines that the scene is changed, sends the backlight coefficient of the current frame of image to the filtering module for processing, and sends the processed backlight coefficient to the backlight display module for backlight control if the cumulative sum is greater than the predetermined backlight threshold value. By the backlight display control device and a backlight display control method, flicker caused by too fast backlight change can be effectively controlled by adjusting the backlight coefficient in real time.

Description

Technical field [0001] The invention relates to the backlight technology of liquid crystal display, and in particular to a backlight display control device and a backlight display control method. Background technique [0002] A liquid crystal display (liquid crystal display, LCD) panel is not an active light-emitting device. It needs a backlight source to see images, and the backlight source is the device that consumes the most energy in a liquid crystal display panel. Currently, white light-emitting diodes (light emitting diodes, LEDs) are widely used as backlight sources for liquid crystal display panels due to their advantages of low energy consumption, high luminous efficiency, convenient area control, fast response, and small package. Although the energy consumption of the light-emitting diode backlight is already very low, it is still the main energy-consuming component of the liquid crystal display panel. Therefore, in order to further reduce the energy consumption of...

Claims

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Application Information

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IPC IPC(8): G09G3/34
Inventor 宋尚云赵守磊
Owner HISENSE VISUAL TECH CO LTD
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