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Brightness calibration method, mobile terminal and storage medium

A technology of mobile terminal and calibration method, applied in the direction of instruments, static indicators, etc., can solve problems such as uncomfortable viewing and glare of the display screen.

Inactive Publication Date: 2019-01-18
XIAMEN MEITU MOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in the brightness of the LCD screen, resulting in the brightest and darkest edge products, after automatic backlight adjustment, some low-brightness displays are too dark to see, and some high-brightness displays are dazzling and uncomfortable to see

Method used

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  • Brightness calibration method, mobile terminal and storage medium
  • Brightness calibration method, mobile terminal and storage medium
  • Brightness calibration method, mobile terminal and storage medium

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Embodiment Construction

[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0023] The maximum brightness value of the LCD screen has a range when it leaves the factory, for example, the brightness value is from 430lux to 550lux or higher, and the maximum brightness value of the LCD screens produced in the same batch is different. Mobile terminals such as mobile phones have the function of automatic backlight adjustment, which reduces the screen brightness when the ambient light is dark, and increases the s...

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Abstract

The invention discloses a brightness calibration method, which is carried out in a mobile terminal. The mobile terminal comprises a liquid crystal display, the liquid crystal display comprises a liquid crystal display screen, a driving chip and a backlight source. The driving chip adjusts the brightness of the backlight source by adjusting a PWM value. Comparing the maximum brightness value with the preset value to determine the PWM value corresponding to the preset value; Adjusting the PWM value corresponding to the maximum luminance value to the PWM value corresponding to the preset value; and performing automatic backlight adjustment based on the PWM value corresponding to the preset value. The scheme can reduce the brightness tolerance of LCD to some extent, thus optimizing the automatic backlighting capability of mobile terminal.

Description

technical field [0001] The present invention relates to the technical field of terminal display, in particular to a brightness calibration method, a mobile terminal and a storage medium. Background technique [0002] A liquid crystal display is mainly composed of a liquid crystal screen and a backlight source, and the backlight source is used to control the display brightness of the liquid crystal display. Because the diffuser, polarizer, glass substrate, liquid crystal, etc. that make up the LCD screen have certain deviations in light transmittance, there are certain differences in the brightness range and other parameters of the liquid crystal display when it leaves the factory. Although liquid crystal display manufacturers control the various materials that make up the liquid crystal display through CPK, and then select the standard display to supply to the terminal manufacturer, but doing so will reduce the yield rate, and the maximum brightness value of the same model o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3406G09G2320/0633
Inventor 苏文益
Owner XIAMEN MEITU MOBILE TECH CO LTD