CN-121990768-A - Manufacturing method of fumigating cover plate and hidden liquid crystal display screen

Abstract

The invention discloses a manufacturing method of a fumigated cover plate and a hidden liquid crystal display screen, the manufacturing method of the fumigated cover plate comprises the following steps of providing a glass cover plate, manufacturing a layer of semi-transparent ink on the glass cover plate in a crack coating or spin coating mode, enabling the transmittance of the semi-transparent ink to be achieved in a mode of controlling the thickness of the semi-transparent ink or manufacturing small holes in the semi-transparent ink, enabling the diameter of the small holes to be 10-100 microns, manufacturing a protective layer on the semi-transparent ink, and manufacturing window ink on the protective layer. Spin coating is better than slot coating in uniformity, but spin coating is a whole-surface coating, and can select a specific area, so spin coating needs to wipe the edge of the glass cover plate, and has requirements on the conveying mode of the glass cover plate, such as edge clamping, and the like. The fumigating cover plate manufactured by the method has low cost and higher hardness, so that the product competitiveness of the fumigating cover plate is improved.

Inventors

• WU DESHENG
• ZHONG XIAOYUE
• LI ZHICHENG

Assignees

• 信利光电股份有限公司

Dates

Publication Date

20260508

Application Date

20260120

Claims (10)

1. 1. The manufacturing method of the fumigated cover plate is characterized by comprising the following steps of: Step one, providing a glass cover plate; Step two, manufacturing a layer of semi-permeable ink on the glass cover plate in a crack coating or spin coating mode, wherein the transmittance of the semi-permeable ink is realized in a mode of controlling the thickness of the semi-permeable ink or in a mode of manufacturing small holes in the semi-permeable ink, and the diameters of the small holes are 10-100 mu m; Step three, manufacturing a protective layer on the semi-permeable printing ink; and fourthly, manufacturing window ink on the protective layer.
2. 2. The method of claim 1, wherein the protective layer has a thickness of 10nm to 300nm.
3. 3. The method of claim 1, wherein the protective layer is formed by magnetron sputtering.
4. 4. The method of claim 1, wherein the protective layer is made of a transparent material.
5. 5. The method of claim 4, wherein the material of the protective layer is silicon dioxide, silicon nitride, niobium oxide or titanium oxide.
6. 6. The method of claim 1, wherein the semi-permeable ink and the window ink are of a uniform color.
7. 7. The method of claim 1, wherein the semi-transparent ink and the window ink are black, red or green.
8. 8. The method of claim 1, wherein the window ink has a thickness of 5 μm to 25 μm.
9. 9. A hidden liquid crystal display screen, characterized in that it comprises a fumigated cover plate manufactured by the manufacturing method of a fumigated cover plate according to any one of claims 1 to 8.
10. 10. The hidden lcd screen of claim 9, further comprising a display module, wherein the fumigated cover plate is fully attached to the display module.

Description

Manufacturing method of fumigating cover plate and hidden liquid crystal display screen Technical Field The invention relates to the technical field of hidden display screens, in particular to a manufacturing method of a fumigating cover plate and a hidden liquid crystal display screen. Background The fumigating cover plate is a description of a semipermeable cover plate in the industry, the semipermeable cover plate can enable a display screen to be changed into a hidden display screen, the hidden display screen becomes a new wind direction of the display industry in recent years, and various manufacturers have introduced a realization mode of the individual fumigating cover plate, wherein the implementation mode comprises adding pigment into OCA optical glue to change the OCA optical glue into a required color, or printing the required color on a plastic (PET/PC) film through gravure printing. The final purpose is to achieve the hiding effect of the display screen when the display screen is extinguished, and still read the display content when the display screen is lit. The fumigated cover plate manufactured by the traditional manufacturing method has high cost and lower hardness, and reduces the competitiveness of the product. Disclosure of Invention The invention aims to solve the technical problem of how to manufacture a fumigating cover plate with low cost and high hardness so as to improve the product competitiveness of the fumigating cover plate. The technical problems to be solved by the invention are realized by the following technical scheme: in order to solve the technical problems, the invention provides a manufacturing method of a fumigated cover plate, which comprises the following steps: Step one, providing a glass cover plate; Step two, manufacturing a layer of semi-permeable ink on the glass cover plate in a crack coating or spin coating mode, wherein the transmittance of the semi-permeable ink is realized in a mode of controlling the thickness of the semi-permeable ink or in a mode of manufacturing small holes in the semi-permeable ink, and the diameters of the small holes are 10-100 mu m; Step three, manufacturing a protective layer on the semi-permeable printing ink; and fourthly, manufacturing window ink on the protective layer. As a preferable implementation mode of the manufacturing method of the fumigated cover plate, the thickness of the protective layer is 10nm-300nm. As a preferred implementation mode of the manufacturing method of the fumigated cover plate, the protective layer is manufactured by a magnetron sputtering mode. As a preferred embodiment of the method for manufacturing the fumigated cover plate, the material of the protective layer is a transparent material. As a preferred embodiment of the method for manufacturing the fumigated cover plate, the material of the protective layer is silicon dioxide, silicon nitride, niobium oxide or titanium oxide. As a preferred implementation mode of the manufacturing method of the fumigated cover plate, the color of the semi-transparent ink and the color of the window ink are a unified system. As a preferred implementation mode of the manufacturing method of the fumigated cover plate, the color of the semi-transparent ink and the color of the window ink are black, red or green. As a preferable implementation mode of the manufacturing method of the fumigated cover plate, the thickness of the window ink is 5-25 μm. A hidden liquid crystal display comprising a smoked cover manufactured by the method for manufacturing a smoked cover as described in any one of the above. As a preferred implementation mode of the hidden liquid crystal display screen provided by the invention, the hidden liquid crystal display screen further comprises a display module, and the fumigating cover plate is fully attached to the display module. The invention has the following beneficial effects: Spin coating is better than slot coating in uniformity, but spin coating is a whole-surface coating, and can select a specific area, so spin coating needs to wipe the edge of the glass cover plate, and has requirements on the conveying mode of the glass cover plate, such as edge clamping, and the like. The semi-transparent ink is manufactured by controlling the thickness of the semi-transparent ink, has the advantages of lower equipment requirement and no high exposure precision, and has the defect that the color of the image in the AA area can be overlapped with the color tone of the semi-transparent ink, so that the color tone of the display is changed. The method for manufacturing the small holes at the semi-permeable ink has the advantages that the requirement of manufacturing the small holes on the exposure precision of equipment is high, the requirement on the laminating precision is high, special exposure molds are required to be manufactured according to the display pixels of each model, moire fringes are prevented from being generated, and the color of the dis