Automatic laptop screen dimming system

Abstract

The invention discloses an automatic laptop screen dimming system. A photoelectric sensor is installed nearby a laptop camera and is in electrical output connection with an ADCO809 digital-to-analog converter, the ADCO809 digital-to-analog converter is in electrical output connection with a single-chip microcomputer which is in two-way electrical output connection with a voltage regulator, and an electric image tube is in two-way electrical connection with the single-chip microcomputer. The brightness value displayed by the electric image tube is transmitted to the single-chip microcomputer, the brightness value sensed by the photoelectric sensor and the screen brightness value of the current electric image tube are recorded through the single-chip microcomputer, the voltage value adapted to screen brightness of the current environment is achieved through calculation of the single-chip microcomputer, the laptop screen is capable of being self-regulated according to the surrounding environment, energy sources are saved, and user's eyes can be protected to the greatest degree.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to an automatic dimming system for a notebook computer screen. Background technique [0002] The brightness of the notebook screen can be adjusted manually, but the brightness of the screen cannot be automatically adjusted according to the environment. The brightness value of the notebook screen cannot be changed according to the surrounding environment, which will affect the operation of the notebook computer. eye discomfort to the eyes of the user, in view of the above problems, we propose a notebook computer screen automatic dimming system. Contents of the invention [0003] The object of the present invention is to provide an automatic dimming system for a notebook computer screen to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present invention provides the following technical solutions: a notebo...

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Problems solved by technology

[0002] The brightness of the notebook screen can be adjusted manually, but the brightness of the screen cannot be automatically adjusted according to the environment. The brightness value of the notebook screen cannot be changed according to the surrounding environment, which will affect the operation of the notebook computer. eye discomfort to the eye of the user, in view of the above problems, we propose a notebook computer screen automatic dimming system

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