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Method and device for adjusting backlight brightness of terminal screen

A technology of backlight brightness and terminal, which is used in devices with sensors, cathode ray tube indicators, telephone communications, etc., and can solve problems such as backlight brightness changes, screen flicker, and user experience impact

Inactive Publication Date: 2016-08-24
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the daily use of the mobile terminal, such a situation often occurs, for example: under the same fixed ambient light condition, if the tilt angle of the mobile terminal changes, the brightness of the backlight of the mobile terminal will change. The change of tilt angle will directly affect the light intensity entering the light hole of the mobile terminal, so the value collected by the light sensor will change at this time, but the real ambient light will not change at this time, which will cause misadjustment of the screen. The brightness of the backlight will cause the screen to flicker, seriously affecting the user experience

Method used

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  • Method and device for adjusting backlight brightness of terminal screen
  • Method and device for adjusting backlight brightness of terminal screen

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Embodiment 1

[0034] Embodiment 1 of the present invention provides a method for adjusting the brightness of a backlight of a terminal screen, and this embodiment will be described in detail below with reference to the accompanying drawings. figure 1 It is a flow chart of the method of Embodiment 1 of the present invention, please refer to figure 1 , the method of the embodiment of the present invention includes the following steps:

[0035] Step S101, when the terminal turns on the automatic backlight mode, obtain the currently collected ambient light intensity value L and the tilt angle value A of the terminal, and set the current screen backlight brightness according to the currently collected ambient light intensity value L;

[0036] Specifically, when the mobile terminal turns on the automatic backlight mode, the mobile terminal will start the ambient light intensity value L collected by the light sensor. At this time, the mobile terminal can obtain the ambient light intensity value L ...

Embodiment 2

[0054] Embodiment 2 of the present invention provides a device for adjusting the brightness of the backlight of the terminal screen, please refer to figure 2 , The device of the embodiment of the present invention includes a light intensity acquisition module 1, an inclination angle acquisition module 2, a calculation module 3, a judgment module 4, an execution module 5, and a backlight brightness adjustment module 6. The functions of the above modules will be described in detail below.

[0055] The light intensity acquisition module 1 is used to obtain the currently collected ambient light intensity value L when the terminal turns on the automatic backlight mode; and when the collected ambient light intensity value changes, obtain the changed actual ambient light intensity value M .

[0056] Specifically, when the mobile terminal activates the light sensor to collect the ambient light intensity value in real time, the light intensity acquisition module 1 can acquire the ambi...

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Abstract

The invention discloses a method and a device for adjusting backlight brightness of a terminal screen. When the terminal starts an automatic backlight mode and the acquired ambient light intensity value L and an ambient light intensity value acquired subsequently change, a change value of tilt angles of the terminal at before-after two times is calculated, according to the preset mapping relationship between change values of different tilt angles and each corresponding light intensity attenuation ratio, the ambient light intensity value L and the light intensity attenuation ratio corresponding to the tilt angle change value are combined to calculate a theoretical ambient light intensity value obtained after an angle change happens to the terminal, if the actual ambient light intensity value M is larger than the theoretical ambient light intensity value, the screen backlight brightness of the terminal is adjusted according to the actual ambient light intensity value M, or otherwise, the backlight brightness of the terminal screen is not adjusted. After the method and the device are applied, when the ambient light intensity changes, the terminal can truly recognize whether the real ambient light changes, and thus, the backlight brightness of the terminal screen can be accurately adjusted.

Description

technical field [0001] The present invention relates to the technical field of mobile terminals, and more specifically, relates to a method and a device for adjusting the brightness of a backlight of a terminal screen. Background technique [0002] The intelligent adjustment of the screen backlight brightness of the mobile terminal is carried out according to the ambient light intensity. First, the current ambient light intensity is detected by the light sensor, and then the backlight brightness of the terminal screen is adjusted according to different ambient light intensities corresponding to different backlight levels. Through intelligent backlight adjustment, users can read softly, without glare, and save power. [0003] However, in the daily use of the mobile terminal, such a situation often occurs, for example: under the same fixed ambient light condition, if the tilt angle of the mobile terminal changes, the brightness of the backlight of the mobile terminal will chan...

Claims

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Application Information

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IPC IPC(8): G09G5/10H04M1/725
CPCG09G5/10H04M2250/12H04M1/72454
Inventor 张强
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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