Abstract:
An adjusting method of display parameter and a liquid crystal display (LCD) system are provided. The adjusting method includes: obtaining a first luminance value and a second luminance value when a LCD panel displaying a minimum grayscale image and a maximum grayscale image respectively; based on the first luminance value, the second luminance value and a standard Gamma curve of the LCD panel, obtaining each target luminance value conforming to the standard Gamma curve and corresponding to each grayscale; based on the target luminance value of each grayscale and a relationship between grayscale voltage and luminance obtained in advance, obtaining a target grayscale voltage of each grayscale; and adjusting a grayscale voltage of each grayscale to be the target grayscale voltage of the grayscale to thereby achieve Gamma adjustment. By the above method, automatic adjustment of display parameter for the LCD panel can be achieved.
Abstract:
An adjustment circuit for measuring an optical parameter is disclosed. The adjustment circuit includes an optical sensing module for detecting an optical signal and converting the detected optical signal into a voltage signal; an amplification module for amplifying the voltage signal; an A/D conversion module for converting the amplified voltage signal into a digital signal; a control module for analyzing the digital signal for generating an analyzed result; a signal generating module for outputting a frequency square wave signal according to the analyzed result; and an adjustment module for adjusting an amplification factor of the amplification module according to the frequency square wave signal. The circuit of the present disclosure is easy, and an automatic measurement can be implemented.