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Method and device for controlling backlight

A technology of backlight and light-emitting unit, which is applied in the field of electronics to achieve the effect of improving efficiency and improving the degree of intelligence

Active Publication Date: 2016-03-30
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present invention provides a method and device for controlling the backlight, which is used to solve the technical problem in the prior art that it cannot be automatically turned on according to the brightness in the environment and whether the user needs to use the keyboard

Method used

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  • Method and device for controlling backlight
  • Method and device for controlling backlight

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Experimental program
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Effect test

Embodiment 1

[0046] Please refer to figure 1 , the embodiment of the present application provides a method for controlling the backlight, including:

[0047] S101: Collect a first brightness value of an environment where an input device including at least one key is located.

[0048] There are various ways to measure the brightness value in the environment. In the embodiment of the present invention, the brightness value of the environment can be determined by collecting infrared rays and ultraviolet rays in the environment. Specifically, the implementation process of collecting the first brightness value of the environment where the input device including at least one key is located may be:

[0049] Firstly, collecting infrared rays or ultraviolet rays of an environment where an input device including at least one key is located;

[0050] Then, the intensity of the infrared rays or the ultraviolet rays is converted into an electrical signal intensity, and the first brightness value of t...

Embodiment 2

[0081] Please refer to figure 2 , the embodiment of the present application also provides a device for controlling the backlight, including:

[0082] A light collection module 201, configured to collect a first brightness value of an environment where an input device including at least one button is located;

[0083] The first control module 202 is connected to the light collection module, and is used to judge whether the first brightness value is less than a preset brightness value, and obtain a first judgment result, when the first judgment result indicates that the first brightness When the value is lower than the preset brightness value, a distance detection command is generated;

[0084] A distance detection module 203, connected to the first control module, configured to execute the distance detection instruction to detect and obtain an actual distance value between an operating body and the input device;

[0085] The second control module 204 is connected to the distan...

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Abstract

The invention discloses a backlight control method and apparatus. The method comprises: acquiring a first brightness value of the environment of an input device comprising at least one button; determining whether the first brightness value is smaller than a preset brightness value, and obtaining a first determination result; when the first determination result shows that the first brightness value is lower than the preset brightness value, generating a distance detection instruction; executing the distance detection instruction and detecting to obtain an actual distance value between an operation body and the input device; determining whether the actual distance is smaller than a preset distance value, and obtaining a second determination result; when the actual distance value is smaller than the preset distance value, generating a backlight starting instruction; and executing the backlight starting instruction, and starting at least one luminescence unit corresponding to the at least one button. According to the invention, through detecting the brightness value of the environment and the distance between the operation body and the input device, the turning-on and turning-off of backlight can be automatically controlled, and the technical problem of incapability of automatic backlight control in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a method and device for controlling a backlight. Background technique [0002] With the development of science and technology, various electronic devices emerge in an endless stream, such as notebook computers, smart phones, etc., which greatly improve people's quality of life. At present, when people use computers, they almost all use keyboards to complete information input. [0003] When the user is not familiar with the position of the keyboard keys and the light is relatively dark, the user needs to enable the corresponding backlight of the keyboard. To control the backlight of the keyboard, the user needs to press a button or multiple buttons to turn on the backlight before using the backlight function. backlight. [0004] In the process of realizing the technical solutions in the embodiments of the present application, the inventors of the present application found tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02
Inventor 郭锐
Owner LENOVO (BEIJING) LTD
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