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Technology for improving visibility of liquid crystal display

A visibility and liquid crystal screen technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as unclear LCD display and reflected light intensity, so as to improve the signal-to-noise ratio and reduce the cost of use

Inactive Publication Date: 2019-06-07
中航华东光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the visibility of the LCD screen has been greatly improved after the above optimization, if the outermost surface of the touch screen is not specially treated, the reflected light it brings is still very strong, so that when the user uses it Sometimes the information displayed on the LCD screen cannot be seen clearly due to strong external reflection

Method used

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  • Technology for improving visibility of liquid crystal display
  • Technology for improving visibility of liquid crystal display
  • Technology for improving visibility of liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, by figure 1 It can be seen that the overall structure of the liquid crystal display 1 with the touch screen 3, because the touch screen 3 and the liquid crystal display 1 have adopted a full bonding technology for refractive index matching, so that the internal structure between the touch screen 3 and the liquid crystal display 1 The reflected light is very weak, and due to the strong specular reflection brought by the smooth surface of the display device, the observer cannot clearly observe the information on the LCD screen 1, so that the information displayed on the LCD screen 1 cannot be clearly and accurately displayed. Read, thus bringing the user's use defects.

[0029] If the signal-to-noise ratio is used to represent the clarity of the observer's reading information, µ represents the signal-to-noise ratio, W represents the effective information light intensity emitted by the LCD screen 1, and I0 represents the reflected light incident on the observ...

Embodiment 2

[0032] In Embodiment 2, in order to enhance the information visibility of the user, it is necessary to reduce the reflected light intensity I0 as much as possible. This technology adopts AG treatment on the smooth surface of the reinforced glass or the surface of the touch screen 3, that is, to increase the roughness of the surface of the display device, thereby forming a layer of frosted interface on the surface.

[0033] Please refer to the attached figure 2 , the surface after AG treatment actually has a lot of tiny particles. When the incident light I is incident on the AG interface, on the one hand, it can be known macroscopically according to the principle of specular reflection that part of the light still exits along the direction of the original reflected light I0 Go out to form I0', and because there are many tiny particles on the surface, from a microscopic analysis, there will be a part of the light that will go out into the air after multiple reflections and refr...

Embodiment 3

[0034] Example 3, if the number of reflections and refractions increases, the angle deflection relative to the original reflected light I0 will be greater, thus finally forming a specular reflected light with the reflected light I0' as the central axis, accompanied by multiple angles around it. Diffuse light I1, I2, I3...as image 3 shown. If the absorption of the interface and the microparticles is not considered, then it can be considered that the original reflected light intensity I0 is equal to the sum of the reflected light after AG treatment, that is:

[0035] I0= I0'+ I1+ I2+ I3+...Ii; i is a positive integer.

[0036] It can be seen from the above formula that I1, I2, I3 and the component Ii of the diffuse reflection light are all greater than 0, so it can be judged that I0>I0', so that the light is reflected to the observer while keeping the ambient light unchanged. The intensity of reflected light in the eye is reduced.

[0037] After AG processing, the reflected ...

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Abstract

The invention provides the technology for improving visibility of a liquid crystal display. The technology for improving visibility of the liquid crystal display comprises a liquid crystal display body, wherein glue is adopted to perform full bonding treatment with a touch screen according to the liquid crystal display body, and the surface of the touch screen is subjected to AG treatment. According to the technology for improving visibility of the liquid crystal display, the design is reasonable, and the use is convenient; the surface of a display area of the liquid crystal display body is subjected to AG treatment to increase the surface roughness so as to increase diffuse reflection of light, the light intensity reflected into the eyes of an observer is reduced, the signal-to-noise ratio of effective information is improved, and the purpose of improving the visibility of the liquid crystal display body is achieved; and meanwhile, the backlight power consumption of the liquid crystaldisplay body is not changed, and the use cost is reduced.

Description

technical field [0001] The invention mainly relates to the technical field of liquid crystal display screens, in particular to a technology for improving the visibility of liquid crystal screens. Background technique [0002] With the development of the times, the display technology has also made remarkable progress, changing with each passing day, and LCD products as display media are also tending to be diversified, and liquid crystal displays of different shapes, functions, and sizes have come out one after another. For example, the display screens currently used in automobiles, airplanes, advertising machines, and industrial equipment consoles are all liquid crystal displays, and in combination with actual use requirements, a touch screen will be attached to the surface of the liquid crystal display screen to form a display and touch panel. Control integration, more user-friendly and convenient in user use. [0003] In such an application background, a multi-layer struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1335
Inventor 赵松
Owner 中航华东光电有限公司
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