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Method and device for adjusting backlight

A backlight adjustment and backlight brightness technology, applied in the electronic field, can solve problems such as difficulty for users to see the screen content, and the screen is dark

Active Publication Date: 2021-09-28
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, the screen appears dark, making it difficult for the user to see the screen content

Method used

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  • Method and device for adjusting backlight
  • Method and device for adjusting backlight
  • Method and device for adjusting backlight

Examples

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Embodiment Construction

[0047] Reference will now be made in detail to the 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.

[0048] figure 1 It is a flowchart of a method for adjusting a backlight according to an exemplary embodiment. The method can be applied to terminal devices such as mobile phones, tablet computers or smart watches. Such as figure 1 As shown, the method includes step S11 to step S14.

[0049] In step S11, ambient light brightness is acquired.

[0050] In the embodiment of the presen...

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Abstract

The disclosure relates to a backlight adjustment method and device. The method includes: acquiring ambient light brightness; if the ambient light brightness is greater than a brightness threshold, adjusting the screen backlight brightness to be greater than the maximum preset brightness; detecting a temperature value by a first temperature sensor; when the first temperature sensor detects When the temperature value of is greater than the temperature threshold, the brightness of the screen backlight is adjusted to be less than or equal to the maximum preset brightness. The disclosure obtains the brightness of the ambient light, and if the brightness of the ambient light is greater than the brightness threshold, adjusts the brightness of the screen backlight to be greater than the maximum preset brightness, detects the temperature value through the first temperature sensor, and when the temperature value detected by the first temperature sensor is greater than When the temperature threshold is reached, the brightness of the screen backlight is adjusted to be less than or equal to the maximum preset brightness, which can help users see the content of the screen clearly in a strong light environment, and can avoid damage to the screen due to excessive temperature.

Description

technical field [0001] The present disclosure relates to the field of electronic technology, and in particular to a backlight adjustment method and device. Background technique [0002] Terminal devices such as mobile phones usually emit light from the backlight array under the screen, and then obtain uniform backlight through the light guide plate. For example, the backlight array is an LED (Light Emitting Diode, light emitting diode) array. The maximum brightness of the backlight is positively related to the number of backlights in the backlight array and the maximum brightness of each backlight. The brightness of each backlight is positively related to its supply current. The maximum brightness of each backlight is determined by its maximum supply current. Due to structural limitations, for a screen of a specific size, the number of backlights in the backlight array is usually fixed. In addition, since the screen material cannot withstand high temperatures, the power su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406G09G3/3413G09G2320/041G09G2320/0626G09G2330/045G09G2360/144G09G3/36
Inventor 钟桂林李国盛黄海宁
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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