A method and terminal for adjusting backlight brightness

A technology of backlight brightness and luminosity, used in cathode ray tube indicators, static indicators, instruments, etc., can solve problems such as failure to achieve uniform visibility, brightness cannot keep up with changes in the environment, etc., to avoid backlight flicker, Show the best results

Active Publication Date: 2019-12-06
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The environment in which users use smart phones is often changeable. It may be in the evening or at noon, indoors or outdoors. , the smart phone needs to make corresponding adjustments according to the environment, but during

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  • A method and terminal for adjusting backlight brightness
  • A method and terminal for adjusting backlight brightness
  • A method and terminal for adjusting backlight brightness

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Embodiment Construction

[0043] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0045] Since the environment of the user when using the smart device is often changeable, in order to obtain a uniform display effect, the smart device must make corresponding adjustm...

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Abstract

The embodiments of the present invention relate to a method for adjusting backlight brightness and a terminal. The method comprises: acquiring a parameter of an image, wherein the parameter comprises one or more of an image change rate, a chrominance ratio, a spatial resolution and image brightness; according to the parameter of the image and a pre-set parameter threshold value, determining the speed for adjusting backlight brightness of a display device, wherein the pre-set parameter threshold value corresponds to the parameter of the image and comprises one or more of an image change rate threshold value, a chrominance ratio threshold value, a spatial resolution threshold value and an image brightness threshold value; by acquiring the parameter of the image, determining the speed for adjusting the backlight brightness of the image according to the parameter of the image; and according to a luminance value of an external environment and the parameter of the image, determining a target brightness where the backlight brightness of the display device is to be adjusted, and according to the determined adjustment speed, adjusting the backlight brightness of the image to the target brightness. By means of a suitable adjustment speed, a user can be prevented from seeing a backlight flicker, and at the same time, the best display effect of an image can be achieved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method and a terminal for adjusting the brightness of a backlight. Background technique [0002] In the era of smart phones, LCD display effect and standby time have increasingly become the focus of attention of smart phones. LCD backlight brightness is closely related to display effect and power consumption. When the brightness of the LCD backlight is appropriate, the display capability of the LCD can be fully utilized; however, when the brightness of the LCD backlight is too low, the display content of the LCD will become dim, with low contrast and poor visibility; when the brightness of the LCD backlight is too high, Although the display effect is not bad, it is more harmful to the eyes, and the power consumption is very large, which affects the use time of the smart phone. [0003] In addition, LCD is a passive light-emitting display, and the display effect...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G5/10
CPCG09G3/36G09G5/10
Inventor 郭玉华钟光华
Owner HUAWEI TECH CO LTD
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