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Brightness adjusting method for terminal screen and mobile terminal

A technology of screen brightness and mobile terminal, applied in the field of communication, can solve the problem of loss of color details and so on

Active Publication Date: 2016-09-28
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An embodiment of the present invention provides a brightness adjustment method of a terminal screen to solve the problem of serious loss of color details when the screen brightness is low

Method used

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  • Brightness adjusting method for terminal screen and mobile terminal
  • Brightness adjusting method for terminal screen and mobile terminal
  • Brightness adjusting method for terminal screen and mobile terminal

Examples

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no. 1 example

[0031] refer to figure 1 , which shows a flowchart of a method for adjusting brightness of a terminal screen according to the present invention, which may specifically include the following steps:

[0032] Step 101, when receiving a screen brightness adjustment signal, adjust the brightness of the terminal screen to a preset brightness value;

[0033] When receiving a signal to adjust the brightness of the screen to a certain brightness value triggered by the user, the brightness of the terminal screen is adjusted to a preset brightness value.

[0034] Because, when the screen brightness of the screen is low, the color details that the screen can display will be seriously lost. In order to reduce the problem that color details will be lost, the brightness of the terminal screen may be adjusted to a fixed brightness value when the user adjusts the brightness of the screen to a certain low brightness value. At this fixed brightness value, the screen can still better express co...

no. 2 example

[0051] refer to figure 2 , which shows a flow chart of Embodiment 2 of a method for adjusting the brightness of a terminal screen according to the present invention, which may specifically include the following steps:

[0052]Step 201, when receiving a screen brightness adjustment signal, adjust the brightness of the terminal screen to a preset brightness value;

[0053] In a preferred example of the embodiment of the present invention, the adjustment signal of the screen brightness is an adjustment signal of a low screen brightness interval conforming to a preset dark state threshold range;

[0054] For different screens, the corresponding preset dark-state threshold ranges are different, and the specific preset dark-state threshold range can be set as required.

[0055] Specifically, the brightness of the screen is represented by a backlight level interval of 0-255. For an AMOLED screen, the preset dark state threshold range may be a backlight level range of 0-25. When t...

no. 3 example

[0093] refer to Figure 4 , shows a block diagram of a mobile terminal embodiment of the present invention, and the mobile terminal 300 may specifically include the following modules:

[0094] A brightness adjustment module 301, configured to adjust the brightness of the terminal screen to a preset brightness value when receiving a screen brightness adjustment signal;

[0095] A curve acquisition module 302, configured to acquire a gamma curve corresponding to the adjustment signal of the screen brightness;

[0096] A grayscale value extraction module 303, configured to extract the grayscale value of the image when receiving an image to be displayed on the terminal screen;

[0097]A grayscale value adjustment module 304, configured to adjust the grayscale value of the image using the gamma curve acquired by the curve acquisition module 302 to obtain a target grayscale value;

[0098] A display module 305, configured to display the image using the target gray scale value.

...

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Abstract

The embodiments of the invention provide a brightness adjusting method for a terminal screen. The method comprises: when receiving a screen brightness adjusting signal, adjusting the brightness of the terminal screen to a preset brightness value; acquiring a gamma curve corresponding to the screen brightness adjusting signal; when receiving an image to be displayed on the terminal screen, extracting a gray-scale value of the image; adjusting the gray-scale value of the image by adopting the gamma curve to obtain a target gray-scale value; and displaying the image by adopting the target gray-scale value. In the method, after a user executes the operation of reducing the brightness of the screen to preset low brightness, the brightness of the screen is guaranteed at certain brightness to ensure the color detail of the screen; and then the gray-scale value of the image to be displayed on the screen is reduced by adopting the gamma curve to achieve the effect of reducing the brightness. Therefore, the problem that the color detail of the screen is lost while the brightness of the screen is reduced is solved.

Description

technical field [0001] The invention relates to the field of communication technologies, in particular to a method for adjusting brightness of a terminal screen and a mobile terminal. Background technique [0002] With the development of screen technology, AMOLED (Active Matrix Organic Light Emitting Diode, Active Matrix Organic Light Emitting Diode panel) screens with high image quality, ultra-thin, long life, and low power consumption have become the focus of attention. [0003] However, whether it is an AMOLED screen or other existing screens, there is a problem that the color details are seriously lost when the screen brightness is low. Contents of the invention [0004] An embodiment of the present invention provides a method for adjusting brightness of a terminal screen to solve the problem of serious loss of color details when the brightness of the screen is low. [0005] In a first aspect, a method for adjusting brightness of a terminal screen is provided, includi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225G09G5/10
CPCG09G3/3225G09G5/10G09G2320/0276
Inventor 陈一诗张胜利
Owner VIVO MOBILE COMM CO LTD
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