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A display device and display method

A display device, liquid crystal display technology, applied in instruments, nonlinear optics, optics, etc., can solve the problems of difficult color liquid crystal display modules, high LED performance requirements, high product cost and product yield, etc. Product cost and product yield problems, the significance of large promotion, the effect of rapid switching

Active Publication Date: 2022-07-29
TRULY SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Switching LEDs at such a high frequency requires high performance of LEDs, and the product cost and product yield are big problems. This is one of the reasons why it is difficult to popularize color LCD modules using RGB backlight technology.

Method used

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  • A display device and display method
  • A display device and display method
  • A display device and display method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 As shown, a display device includes a black and white liquid crystal display screen 1 and an RGB backlight source 2, and the black and white liquid crystal display screen 1 and the RGB backlight source 2 are stacked.

[0027] The black and white liquid crystal display screen 1 includes, from bottom to top, a lower polarizer 11 , a lower substrate 12 , a lower transparent electrode layer 13 , a liquid crystal layer 14 , an upper transparent electrode layer 15 , an upper substrate 16 and an upper polarizer 17 .

[0028] The RGB backlight source 2 includes a red light emitting device 21, a green light emitting device 22 and a blue light emitting device 23 for respectively providing three primary color light sources of R, G and B, and for controlling the three primary color light sources of R, G and B respectively. The red light valve 25, the green light valve 26 and the blue light valve 27 passing through; at least one of the red light emitting device 21, the...

Embodiment 2

[0041] like image 3 As shown, a display method, applied to the display device described in Embodiment 1, includes:

[0042] Synchronously control the switches of the red light emitting device 21, the green light emitting device 22, the blue light emitting device 23 and the black and white liquid crystal display screen 1;

[0043] The switches of the red light valve 25, the green light valve 26 and the blue light valve 27 are controlled time-sharing, and the three primary color light sources of R, G, and B are provided to the black and white liquid crystal display screen in a time-sharing manner.

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Abstract

The invention discloses a display device, comprising a black and white liquid crystal display screen and an RGB backlight source. The red light emitting device, the green light emitting device and the blue light emitting device; the RGB backlight also includes a red light valve, a green light valve and a blue light valve for respectively controlling the passage of the three primary color light sources of R, G and B, The red light emitting device, the green light emitting device, the blue light emitting device and the black and white liquid crystal display screen are controlled and switched synchronously, and the red light valve, the green light valve and the blue light valve are time-divisionally controlled to switch to the The black and white liquid crystal display screen provides three primary color light sources of R, G and B in time-sharing. The display module can realize the rapid switching of the three primary color light sources of R, G, and B, reduce the product cost, improve the product yield, and has great promotion significance. The present invention also provides a display method.

Description

technical field [0001] The present invention relates to display technology, and in particular, to a display device and a display method. Background technique [0002] In addition to the widely used RGB filter film technology, the existing color liquid crystal display module also has RGB backlight technology. [0003] In the RGB backlight source, there are three primary colors of R, G and B LEDs, and the LEDs of the R, G and B primary colors are controlled by time-sharing to light up in sequence, and then cooperate with a black and white liquid crystal display screen without RGB filter film to use human beings. The visual residual characteristics of the eye (in 0.1S after a person sees an object, even if the object disappears, there is still a residual image in the human eye), the backlight color is switched in a short time, so that the three primary colors of R, G and B are The afterimage is superimposed in the human eye to form a full-color display. [0004] The RGB backl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133621G02F1/133613G02F1/133622
Inventor 廖亿彬季金李孟祥
Owner TRULY SEMICON