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A liquid crystal display television and a method and apparatus for adjusting a backlight driving voltage of the same

A technology for driving and adjusting a device for backlighting, which is applied to parts of color TVs, parts of TV systems, TVs, etc., can solve the problems of slow response speed of LCD TV backlights.

Active Publication Date: 2016-11-09
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, an object of the present disclosure is to provide a method for adjusting the driving voltage of the backlight, which is used to solve the problem in the prior art that the response speed of the LCD TV backlight is relatively slow during the driving process of the backlight
[0007] In addition, another object of the present disclosure is to provide a backlight driving voltage adjustment device and an LCD TV, which are used to solve the problem of slow response speed of the LCD TV backlight in the driving process of the backlight in the prior art

Method used

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  • A liquid crystal display television and a method and apparatus for adjusting a backlight driving voltage of the same
  • A liquid crystal display television and a method and apparatus for adjusting a backlight driving voltage of the same
  • A liquid crystal display television and a method and apparatus for adjusting a backlight driving voltage of the same

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Embodiment Construction

[0037] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0038] figure 2 It is a block diagram of an LCD TV according to an exemplary embodiment, such as figure 2 As shown, the LCD TV 100 includes an image processing unit 110 , a backlight driving voltage adjustment device 130 and a backlight source 150 .

[0039] Wherein, the image processing unit 110 is used for generating backlight data according to the input image signal.

[0040] The d...

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Abstract

The disclosure relates to a liquid crystal display television and a method and apparatus for adjusting a backlight driving voltage of the same. The method for adjusting the backlight driving voltage includes: obtaining voltage feedback data by comparing a reference driving current and a backlight driving current during a driving process of a backlight source; carrying out over-voltage adjusting on the voltage feedback data to generate over-voltage feedback data; and adjusting the backlight driving voltage according to the overvoltage feedback data to perform over-voltage driving of the backlight source thorough the adjusted backlight driving voltage. Through adoption of the liquid crystal display television and the method and apparatus for adjusting the backlight driving voltage of the same provided by the disclosure, the responding speed of backlight of the liquid crystal display television in the backlight driving process can be raised.

Description

technical field [0001] The present disclosure relates to the technical field of liquid crystal televisions, in particular to a liquid crystal television and an adjustment method and device for backlight driving voltage thereof. Background technique [0002] In the traditional dynamic backlight control technology, the DC / DC converter in the LCD TV usually generates the backlight driving voltage for driving the backlight. At the same time, the LCD TV also generates a voltage feedback or current feedback to the DC / DC converter to Adjust the backlight driving voltage output by the DC / DC converter, and then drive the backlight to work normally. [0003] In the driving process of the backlight, as the number of backlights in the backlight gradually increases, the load power of the backlight also increases, and the DC / DC converter needs to output a higher backlight driving voltage to drive the backlight . [0004] However, since the DC / DC converter cannot quickly adjust the backl...

Claims

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Application Information

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IPC IPC(8): H04N5/63G09G3/34
CPCG09G3/3406H04N5/63G09G3/342G09G3/3648G09G2310/08G09G2320/0252G09G2320/064G09G2320/0653G09G2320/0686G09G3/3696G09G2300/0819G09G2320/0204G09G2320/0626
Inventor 张玉欣
Owner HISENSE VISUAL TECH CO LTD
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