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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: 2014-03-12
LENOVO (BEIJING) LTD
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[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
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Embodiment 1
[0049] Please refer to figure 1 , an embodiment of the present application provides a method for controlling a backlight, including:
[0050] S101: Collect a first brightness value of an environment where an input device including at least one key is located.
[0051] 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:
[0052] First, collecting infrared or ultraviolet of an environment where an input device including at least one key is located;
[0053]Then, the intensity of the infrared rays or the ultraviolet rays is converted into an electrical signal intensity, and the first brightness value of the environment...
Embodiment 2
[0084] Please refer to figure 2 , an embodiment of the present application also provides a device for controlling a backlight, including:
[0085] a light collection module 201, configured to collect a first brightness value of an environment where an input device including at least one key is located;
[0086] The first control module 202, connected to the light collection module, is used to determine whether the first brightness value is less than a preset brightness value, and obtain a first determination result, where the first determination result indicates that the first brightness When the value is lower than the preset brightness value, a distance detection instruction is generated;
[0087] A distance detection module 203, connected with the first control module, is used to execute the distance detection instruction, and detect and obtain the actual distance value between an operating body and the input device;
[0088] The second control module 204, connected to the...
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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 present invention relates to the field of electronic technology, and 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 always use keyboards to complete information input. [0003] When the user is not familiar with the key positions of the keyboard and the light is relatively dark, the user needs to enable the corresponding backlight of the keyboard, and the control of the keyboard backlight requires the user to press a key or multiple keys to turn on the backlight before using the backlight function. Backlight. [0004] In the process of implementing the technical solutions in the embodiments of the present application, the inventor of the present applic...
Claims
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