A liquid crystal display device and method for producing backlight thereof

Abstract

The invention belongs to the field of liquid crystal display and provides a liquid crystal display device and a backlight generation method thereof. The liquid crystal display device includes a liquid crystal panel and a backlight system. The backlight system includes a plurality of light-emitting clusters, and each light-emitting cluster includes RGB three Each light-emitting group is composed of a plurality of LED light-emitting units with different emission lines. The method for producing a wide-spectrum liquid crystal backlight provided by the present invention includes arranging a plurality of LED light-emitting units with different light-emitting lines to combine to form a light-emitting cluster; selecting multiple light-emitting units in the light-emitting cluster to form three light-emitting groups of RGB, and according to the light-emitting The color needs to set the driving parameters for each LED light-emitting unit separately, and use the field sequential display method to drive the three light-emitting groups of RGB in time-sharing. The liquid crystal display device provided by the present invention can better restore or approach the real colors of natural scenery because of the wide spectral range of the backlight source, making viewing more comfortable.

Description

technical field [0001] The invention belongs to the field of liquid crystal display, in particular to a liquid crystal display device and a method for producing a backlight source thereof. Background technique [0002] In the natural world where people live, the spectrum of visible light of objects observed by eyes is rich and often continuous. However, for a liquid crystal display device using a common CCFL or LED backlight, the light emitted by the backlight source is discontinuous in several limited spectral bands. The color we see from the LCD TV is the result of mixing the above discontinuous spectral segments. This method is a simplified processing method for complex colors. It can only basically reproduce the original color of the scene. The color of the actual object has a large difference in the spectral composition. figure 1 , figure 2 , image 3 The difference between the reflection spectrum of the natural object of the same color and the display spectrum of ...

AI Technical Summary

Problems solved by technology

However, the spectral line bandwidth of the backlight RGB LED of the liquid crystal display device is much lower than that of the imaging three primary colors. This kind of spectral line color with a narrow half-peak width to simulate a spectral line color with a wide half-peak width will cause The distortion of the image color of the liquid crystal display device often presents a color that is too green or too red. Although the color gamut of the backlight color of the liquid crystal display device is very wide, the realism of the image is poor, and it is more suitable for continuous spectrum light than people. Compared with the natural environment, there is a big difference

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