Liquid crystal display of displaying different colours to present image in specific period

Abstract

The invention is a liquid crystal display (LCD), comprising a color filter, a first light source arranged on the back of the color filter and able to generate light in the first wavelength range, a second light source arranged on the back of the color filter and able to generate light in the second wavelength range and a logic unit to switch on the first light source and switch off the second light source in the first period of time in a special cycle and switch on the second one and switch off the first one in the second period of time in the special cycle. And the color filter comprises plural light filtering blocks, each comprising a first subblock to remove the light in the first and second wavelength ranges, a second subblock to remove the light in a third wavelength range and a third subblock to allow the light in the first, second and third wavelength ranges to pass.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display capable of displaying different colors within a specific period to present images. Background technique [0002] Please refer to figure 1 , figure 1 It is an exploded schematic view of a prior art liquid crystal display 100 . The liquid crystal display 100 includes a color filter 110 , a liquid crystal display layer 120 , and a light source generator 130 . The color filter 110 includes a plurality of filter blocks 112 , and each filter block includes a blue sub-block B, a green sub-block G, and a red sub-block R. The blue sub-block B is used to remove light outside the blue wavelength range (420nm-470nm), that is, the blue sub-block B only allows blue light to pass through, and the green sub-block G is used to remove the green light wavelength range (500nm-570nm), that is, the green sub-block G only allows green light to pass through, and the red sub-block ...

AI Technical Summary

Problems solved by technology

[0006] However, a general dynamic image presents 60 frames per second, that is, each liquid crystal display pixel 222 of the liquid crystal display layer 220 must change its liquid crystal tilt angle 180 times in one second, so the liquid crystal display 200 must have a high performance. Frequency driver IC, and it must be matched with a specific type of liquid crystal display technology, which will not only increase the product cost, but also have a certain degree of difficulty in implementation

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