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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

Inactive Publication Date: 2012-02-22
NANJING CEC PANDA LCD TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] With the development and improvement of liquid crystal display devices, various portable and personalized digital products continue to appear, so they can be operated anytime and anywhere, which is extremely convenient, but when used in public places, the information on the display screen is very easy to be peeped leaked

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as figure 2 As shown, the backlight 11 forms linearly polarized light consistent with the polarization direction of the first polarizer 12 by the first polarizer 12 of the liquid crystal panel 10, and then passes through the 1 / 4 phase retardation film 13 to form a left-handed (or right-handed) circularly polarized light. The polarized light exits directly after passing through the liquid crystal layer 25 and the color filter substrate 15. Since there is no third 1 / 4 phase retardation film 16 and third polarizer 17, when viewing the display screen directly with the naked eye, there is no change in the gray scale of the pixels, Observers will not be able to watch the picture information, and need to wear circular polarized glasses 19 to watch, which plays the role of anti-peeping in the present invention.

Embodiment 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 to view with naked eyes. The movable polarizer 21 can be formed by sticking a second 1 / 4 phase retardation film 23 and a second polarizer 24 on the organic glass 22 in sequence.

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Abstract

The invention discloses an anti-peep liquid crystal display. The liquid crystal display comprises a liquid crystal panel and circular polarized glasses matched with the liquid crystal panel, wherein the liquid crystal panel comprises a color film substrate and an array substrate which are arranged oppositely, and a liquid crystal layer arranged between the color film substrate and the array substrate; and a first 1 / 4 phase delay film and a first polarizer are arranged on the array substrate in turn. The liquid crystal display can prevent a picture on a display screen from being peeped by other people.

Description

technical field [0001] The invention relates to the field of liquid crystal display manufacture, in particular to a peep-proof liquid crystal display. Background technique [0002] With the development of the information technology society, people's demand for display devices has increased. In order to meet this demand, several types of flat panel display devices, such as liquid crystal display devices (LCD), organic light emitting display devices (OLED), and plasma display devices (PDP), have been rapidly developed recently. Among flat panel display devices, liquid crystal display devices are gradually replacing organic light-emitting display devices and plasma display devices due to their advantages of low weight, small volume, and low energy consumption. [0003] Based on the characteristics of large viewing angle and fast response speed, the VA (Vertical Alignment, vertical alignment) display mode has become one of the mainstream display modes of large-size LCD TVs. Tra...

Claims

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Application Information

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IPC IPC(8): G02F1/13363G02F1/1335G02B27/26G02B30/25
Inventor 洪孟逸王海宏
Owner NANJING CEC PANDA LCD TECH
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