Anti-peep liquid crystal display
A liquid crystal display and liquid crystal layer technology, which is applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of peeping and leakage of information on the display screen, and achieve the effects of reducing processing costs, reducing usage, and improving yield
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[0016] Example 1:
[0017] Such as figure 2 As shown, the backlight 11 is formed by the first polarizer 12 of the liquid crystal panel 10 to form linearly polarized light in the same polarization direction as the first polarizer 12, and then passes through the quarter phase retardation film 13 to form left-handed (or right-handed) circularly polarized light, circular The polarized light exits directly after passing through the liquid crystal layer 25 and the color filter substrate 15. Since there is no third quarter phase retardation film 16 and third polarizer 17, when the display screen is directly viewed with the naked eye, there is no grayscale change of the pixels. The observer will not be able to view the screen information, and needs to wear round-biased glasses 19 for viewing, which plays the anti-peeping effect of the invention.
Example Embodiment
[0018] Example 2:
[0019] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that when normal viewing is required, the circular polarized glasses 19 are no longer worn, but a movable polarizer 21 is installed in front of the liquid crystal panel 10 for viewing with the naked eye. The movable polarizer 21 can be formed by sequentially attaching a second quarter phase retardation film 23 and a second polarizer 24 to the organic glass 22.
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