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Display device

A display device and display component technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as laser safety hazards, liquid crystal material damage, light pollution, etc., and achieve the goal of reducing screen reflectivity, changing brightness, and reducing screen blue light output. Effect

Pending Publication Date: 2021-06-04
苏州视奥光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the application of large-size LCD panels in education and commercial offices, people generally use laser pointers as pointers or pointers for speeches. Since the LCD panel is completely black, especially the panel needs light in the visible light range. Therefore, the common red, green, and blue lasers almost all penetrate the liquid crystal display panel and are incident on the middle liquid crystal layer. Not only cannot display the laser pointing bright spot, but it is easy to cause damage to the liquid crystal material and damage the liquid crystal. display panel
In addition, when a large-size LCD displays a picture, the external light may be reflected by the smooth surface of the LCD panel, and the laser beam incident by the laser pointer will also be reflected, causing light pollution and laser safety hazards

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like figure 1 As shown, in this embodiment, the display component 101 is a liquid crystal display, which includes a substrate 101a, a liquid crystal layer 101b, and an opposite substrate 101c. Specifically, in this embodiment, the substrate 101a may be an array substrate, and the opposite substrate 101c may be a color filter substrate. Of course, one of the substrate 101a or the opposite substrate 101c is a color filter on array (COA) or an array on color filter (AOC) substrate, while the other is a simple substrate without arrays and color filters. set it on. Certainly, the display component 101 may also be a plasma display panel (PDP), a liquid crystal display on silicon (LCoS), a quantum dot laser TV, a liquid crystal laser TV, etc., which are not specifically limited in this embodiment.

[0025] In this embodiment, the bidirectional filter layer 103 is bonded to the display component 101 with the adhesive layer 102. After the bidirectional filter layer 103 is bond...

Embodiment 2

[0035] like figure 2 As shown, in this embodiment, the display component 101 and the bidirectional filter layer 103 are bonded through the adhesive layer 102 . The two-way filter layer 103 is located between the display component 101 and the light conversion layer 201. On the one hand, the two-way filter layer 103 can block and intercept the laser beam of a specific wavelength from the direction of the light conversion layer 201, avoiding the remaining light after passing through the light conversion layer 201 The laser beam continues to be incident into the display assembly 101, causing damage to the display assembly 101; at the same time, the bidirectional filter layer also filters the blue-violet light emitted by the display assembly 101 when displaying images, reducing the output rate of blue-violet light and avoiding the display assembly 101. The emitted blue-violet light passes through the light conversion layer 201 and exits, affecting the eyes of the viewing user.

...

Embodiment 3

[0041] like image 3 As shown, this embodiment is similar to Embodiment 1. The anti-glare layer 302 can be obtained by performing surface atomization treatment on the PET base film, including roughening the PET film to form an anti-glare layer. Cutting, grinding, fine grinding, electrolytic grinding and other methods. In this embodiment, the anti-glare layer 302 has a rough surface on the outermost side, that is, a side away from the bidirectional filter layer 103 , and has a flat and smooth surface on a side close to the bidirectional filter layer 103 .

[0042] The difference from Embodiment 1 is that the light conversion layer 301 in this embodiment not only has the function of the light conversion layer 105 in Embodiment 1, that is, realizes the conversion of the wavelength of the incident laser beam, but also the light conversion layer 301 It has the function of the anti-glare layer 106 , that is, it serves the purpose of bonding and laminating the two-way filter layer 1...

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Abstract

The invention discloses a display device which comprises an anti-glare layer, a light conversion layer, a bidirectional filter layer, an adhesive layer and a display assembly, wherein the anti-glare layer is located on the light conversion layer and scatters a laser beam with a specific wavelength emitted by a laser indicating pen, and the light conversion layer absorbs the laser beam with the specific wavelength emitted by the laser indicating pen and emits visible light at the same time; the light conversion layer comprises a photoluminescence material and has high transmittance on visible light of 450 nm and 650 nm emitted by the display assembly, and the bidirectional filtering layer is located between the display assembly and the light conversion layer and is used for intercepting a laser beam of a specific wavelength emitted by the laser indicating pen and filtering blue-violet light emitted by the display assembly; and the adhesive layer is bonded and covered between the light conversion layer and the bidirectional filter layer, and all the functional layers are combined with the display assembly to form the display device. The device can solve the problems that in the prior art, indicating bright spots of a laser pen cannot be displayed, and the surface reflectivity is high.

Description

technical field [0001] The invention relates to a display device, which can be used in the technical field of laser light emitting illumination. Background technique [0002] With the advancement of science and technology, various information devices are constantly being introduced, such as cathode ray tube (CRT), plasma display panel (PDP), digital optical processor (DLP), liquid crystal display on silicon substrate (LCoS), organic light-emitting diode ( OLED), Field Emission Display (FED), Quantum Dot Laser TV, LCD Laser TV, etc. Among them, liquid crystal displays have become the mainstream of display screens due to their advantages of power saving, low radiation, and small space occupation. Large-size LCD monitors are getting closer and closer to home and business offices. In the business applications of 50-100-inch display screens, LCD monitors have even gradually replaced the original projection, becoming the preferred choice for school classrooms, office meetings, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCG02F1/133514
Inventor 程波涛
Owner 苏州视奥光电科技有限公司