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Method for reducing backlight power consumption of display device and apparatus thereof

A display device and backlight technology, applied in the field of communication, can solve the problem of waste of backlight power consumption of display devices

Inactive Publication Date: 2012-10-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method and device for reducing power consumption of the backlight of a display device, and solves the technical problem in the prior art that the backlight power consumption of the display device is wasted due to the stable and constant supply of the backlight

Method used

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  • Method for reducing backlight power consumption of display device and apparatus thereof
  • Method for reducing backlight power consumption of display device and apparatus thereof
  • Method for reducing backlight power consumption of display device and apparatus thereof

Examples

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Embodiment 1

[0025] figure 1 It is a flowchart of a method for reducing backlight power consumption of a display device according to an embodiment of the present invention, please refer to figure 1 :

[0026] S01. Adjust the gray-scale brightness of the pre-displayed content of the display device to output a PWM wave with a corresponding duty cycle;

[0027] S02. Control the on-off of the backlight source of the display device according to the PWM wave with a corresponding duty cycle output in step S01;

[0028] The following takes the backlight source of the LCD on the mobile phone as an example to further describe this embodiment in detail.

[0029] In this embodiment, CABC (Content Adaptive Brightness Control, adaptive brightness adjustment according to picture content) technology can be used to set a content analyzer circuit in the LCD driver IC, and the mobile phone processor can transmit the data of a pre-displayed picture to the driver IC , the content analyzer circuit calculates...

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Abstract

The invention discloses a method for reducing the backlight power consumption of a display device and an apparatus thereof. The method comprises the following steps of adjusting the gray scale brightness of a content which is prepared to be displayed on the display device so as to output a PWM wave with a corresponding duty ratio, and controlling on and off of a backlight source according to the PWM wave with the corresponding duty ratio. According to the method and the apparatus, through the above scheme, a technical problem of the waste of the backlight power consumption of the display device caused by a stable and incessant mode of the backlight source in the prior art is solved.

Description

technical field [0001] The technical field of the present invention relates to a method and a device for reducing backlight power consumption of a display device, in particular. Background technique [0002] With the development of electronic technology, the functions of electronic devices such as mobile terminals, TVs, and MIDs (mobile Internet devices) that are widely used are becoming more and more diverse, such as mobile phones. , GPS, games, web browsing functions, sending and receiving e-mails, schedule management, online shopping, downloading various rich software and other functions in one. Electronic devices have more and more functions, on the one hand to meet the application requirements of users, on the other hand, it also increases the power consumption of the backlight of the display device. [0003] At present, the backlight control of most display devices adopts the normal supply method, such as mobile phones, the LCD backlight control on the mobile phone ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/34G09G2320/064G09G2330/022G09G2320/0646G09G3/3406G09G3/36
Inventor 喻俊峰赵斌
Owner ZTE CORP
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