| 摘要 |
A method and a device for correcting light brightness of a projector are provided to enable a user to comfortably view a computer screen projected from the projector even if luminous intensity around is changed by correcting the brightness of light projected from the projector based on a gamma value changed in a computer. A light sensor(100) detects the light, and the computer(200) receives a signal from the light sensor, and includes an application program(210), a database(220), and a system information registry(230). The projector(300) receives the signal from the computer and projects an image to a screen. The computer compares the luminous intensity around measured in the light sensor with a threshold stored in the database, determines a correction level by loading a value stored in the database based on a comparison result, and changes the gamma value corresponding to the determined correction level. The value stored in the database considers intensity of the light absorbed to a screen(400).
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