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Display device backlight source power control method and control device

A technology for power control and display devices, applied in optics, nonlinear optics, static indicators, etc., can solve problems such as increased hardware costs and burnout of backlight circuit boards, improve contrast, ensure that hardware costs remain unchanged, and improve Effect of Backlight Luminance Values

Inactive Publication Date: 2017-12-29
MSTAR SEMICON INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventor of the present application has found in the long-term research and development process that in the prior art, it is often achieved by increasing the power of the backlight or the power board, but this method will lead to an increase in hardware costs; in addition, the prior art cannot effectively Avoid exceeding the rated power of a single backlight in the display area and the total rated power of all backlights, so there is a risk of backlight or circuit board burnout when increasing the power of the backlight

Method used

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  • Display device backlight source power control method and control device
  • Display device backlight source power control method and control device
  • Display device backlight source power control method and control device

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Embodiment Construction

[0021] In the following description, specific details are set forth in order to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways other than those described here, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Accordingly, the present invention is not limited to the specific embodiments disclosed below.

[0022] In view of the defects mentioned in the background art, the present invention provides a novel power control method and control device for a backlight source of a display device. The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0023] see figure 1 , figure 1 It is a schematic flowchart of an embodiment of a power control method for a backlight source of a display device according to the present invention.

[0024] In this embodiment, the backlight of t...

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Abstract

The invention discloses a display device backlight source power control method and control device. The backlight source comprises multiple backlight lamps which are arranged in arrays so as to be corresponding to different display areas of the display device. The power control method comprises the steps that the corresponding input power value of each backlight lamp is acquired according to the video data; the input power value of each backlight lamp is adjusted so as to acquire the output power value of each backlight lamp, wherein the adjusting amplitude of the output power value acquired after adjustment of the backlight lamps of high input power value is greater than that of the output power value acquired after adjustment of the backlight lamps of low input power value; and each corresponding backlight lamp is driven according to the adjusted output power value of each backlight lamp. With application of the mode, the contrast of the display device can be enhanced without burnout of the backlight lamps and the backlight source or change of the hardware cost.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a power control method and a control device for a backlight source of a display device. Background technique [0002] With the development of science and technology, display devices with image display functions have become an indispensable tool for people's work and life. At the same time, due to the needs of work and life, people have higher and higher requirements for image display quality. [0003] Wherein, enhancing the contrast of the video or image screen of the display device can improve the display quality of the display device to a certain extent. The inventor of the present application has found in the long-term research and development process that in the prior art, it is often achieved by increasing the power of the backlight or the power board, but this method will lead to an increase in hardware costs; in addition, the prior art cannot effectively To avoid exceedi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406G09G3/3426G09G2320/029G09G2320/0646G09G2320/066G09G2330/021G09G2330/04G09G2360/16G02F1/133602G09G3/3413G09G2320/064
Inventor 伍辉
Owner MSTAR SEMICON INC
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