Liquid crystal display and its automatic regulating method

Abstract

The liquid crystal display (LCD) device includes a LCD faceplate, a scan drive, a data drive, a driving controller, a light sensor, a light source, and a backlight drive circuit (BDC). The scan drive provides scan signal to the LCD faceplate. The data drive provides image signal to the LCD faceplate. The driving controller controls the scan drive, and the data drive to drive the LCD faceplate to display image. Sensing external light, the light sensor generates a light-sensing signal. BDC is in use for driving luminescence of the light source to provide light beam for the LCD faceplate. Receiving and recognizing the light-sensing signal, BDC can determine frequency and brightness of external light based on the light-sensing signal. Then, BDC controls luminescence brightness, and luminescence frequency based on frequency and brightness of external light.

Description

【Technical field】 [0001] The invention relates to a liquid crystal display and an automatic adjustment method thereof. 【Background technique】 [0002] At present, liquid crystal displays have gradually replaced traditional cathode ray tube (CathodeRay Tube, CRT) displays, and because liquid crystal displays have the advantages of lightness, thinness, and low power consumption, they are widely used in portable DVDs, visual music players, fields such as mobile phones and notebook computers. [0003] Please refer to FIG. 1 , which is a schematic diagram of a liquid crystal display 100 disclosed in the prior art. The liquid crystal display 100 includes a liquid crystal display panel 110 , a scanning driver 120 , a data driver 130 , a driving controller 140 , a light source 160 and a backlight driving circuit 170 . The backlight driving circuit 170 drives the light source 160 to emit light to provide the required light for the liquid crystal display panel 110 to display. The d...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the liquid crystal display cannot automatically adjust its display frequency and brightness according to the frequency and brightness of the external light source in the prior art, it is necessary to provide an automatic adjustment of the display frequency and brightness according to the frequency and brightness of the external light source. LCD Monitor

[0006] In order to solve the problem that the liquid crystal display cannot automatically adjust its display frequency and brightness according to the frequency and brightness of the external light source in the prior art, it is necessary to provide an automatic adjustment of the display frequency and brightness according to the frequency and brightness of the external light source. Liquid crystal display driving method

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