Manufacturing method of smoked cover plate and hidden liquid crystal display screen

Abstract

The invention discloses a manufacturing method of a smoked cover plate and a hidden liquid crystal display screen. The manufacturing method of the smoked cover plate comprises the following steps: step 1, providing a glass cover plate; 2, a layer of semi-permeable printing ink is manufactured on the glass cover plate in a crack coating or spin coating mode, the transmittance of the semi-permeable printing ink is achieved by controlling the thickness of the semi-permeable printing ink or manufacturing small holes in the position of the semi-permeable printing ink, and the diameter of the small holes ranges from 10 micrometers to 100 micrometers; 3, manufacturing a protective layer on the semi-permeable printing ink; and 4, window printing ink is manufactured on the protective layer. Spin coating uniformity is superior to crack coating, but a large amount of spin coating materials are wasted, as the spin coating is whole-surface coating, the crack coating can be selected in a specific area, the edge of the glass cover plate needs to be wiped during spin coating, and the conveying mode of the glass cover plate, such as edge clamping, is required. The smoking cover plate manufactured by the method is low in cost and relatively high in hardness, so that the product competitiveness of the smoking cover plate is improved.

Description

Technical Field

[0001] This invention relates to the field of concealed display technology, and more specifically, to a method for manufacturing a smoked cover plate and a concealed liquid crystal display. Background Technology

[0002] Smoked cover glass is an industry term for semi-transparent cover glass. Semi-transparent cover glass allows a display screen to become a hidden display, a new trend in the display industry in recent years. Various manufacturers have introduced their own methods for achieving smoked cover glass, including adding pigments to the OCA optical adhesive to change its color, or printing the desired color onto a plastic (PET / PC) film using gravure printing. The ultimate goal is to achieve a hidden display effect when the screen is off, while still allowing the display content to be read when the screen is on.

[0003] These traditional manufacturing methods produce smoked covers that are expensive and have low hardness, reducing the product's competitiveness. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to manufacture a smoked cover plate that is low in cost and has high hardness, so as to improve the product competitiveness of smoked cover plates.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solution: To solve the above-mentioned technical problems, the present invention provides a method for manufacturing a smoke-curing cover plate, which includes the following steps: Step 1: Provide a glass cover; Step 2: Apply a layer of semi-transparent ink to the glass cover plate by seam coating or spin coating. The transmittance of the semi-transparent ink is achieved by controlling the thickness of the semi-transparent ink or by creating small holes in the semi-transparent ink. The diameter of the small holes is 10μm-100μm. Step 3: Create a protective layer on the semi-transparent ink; Step 4: Apply window ink to the protective layer.

[0006] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the thickness of the protective layer is 10nm-300nm.

[0007] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the protective layer is manufactured by magnetron sputtering.

[0008] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the protective layer is made of a transparent material.

[0009] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the material of the protective layer is silicon dioxide, silicon nitride, niobium oxide, or titanium oxide.

[0010] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the colors of the semi-transparent ink and the window ink are in a unified system.

[0011] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the semi-transparent ink and the window ink are both black, red or green.

[0012] In a preferred embodiment of the method for manufacturing the smoked cover plate provided by the present invention, the thickness of the window ink is 5μm-25μm.

[0013] A concealed liquid crystal display screen comprising a smoked cover plate manufactured by the method described in any of the preceding claims.

[0014] As a preferred embodiment of the hidden liquid crystal display screen provided by the present invention, it further includes a display module, wherein the smoked cover plate is fully bonded to the display module.

[0015] The present invention has the following beneficial effects: Spin coating has better uniformity than seam coating, but spin coating wastes more material. Since spin coating is a full-area coating, seam coating can be applied to specific areas. Spin coating requires wiping the edges of the glass cover and has requirements for the way the glass cover is transported, such as by clamping the edges.

[0016] The advantage of creating semi-transparent ink by controlling the thickness of the semi-transparent ink is that it requires less equipment and does not need high exposure accuracy; the disadvantage is that the image color in the AA area will be superimposed with the hue of the semi-transparent ink, thus changing the displayed hue.

[0017] The disadvantage of creating pinholes in semi-transparent ink is that it requires high exposure and bonding precision from the equipment, and a special exposure mold with a specific pattern needs to be made for each display pixel model to prevent moiré patterns. Its advantage is that the color of the displayed image in the AA area will not change.

[0018] The smoked cover plate produced by the method of the present invention has low cost and high hardness, thereby improving the product competitiveness of the smoked cover plate. Attached Figure Description

[0019] To more clearly illustrate the solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a smoke-filled cover plate provided by the present invention.

[0021] Explanation of icon numbers: 1. Glass cover plate; 2. Semi-transparent ink; 3. Protective layer; 4. Window ink. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Example 1, please refer to Figure 1 This invention provides a method for manufacturing a smoke-curing cover, which includes the following steps: Step 1: Provide a glass cover plate 1; Step 2: Apply a layer of semi-permeable ink 2 to the glass cover plate 1 by seam coating or spin coating. The transmittance of the semi-permeable ink 2 is achieved by controlling the thickness of the semi-permeable ink 2 or by creating small holes in the semi-permeable ink 2. The diameter of the small holes is 10μm-100μm. Step 3: Create a protective layer 3 on the semi-transparent ink 2; Step 4: Apply window ink 4 to the protective layer 3.

[0027] In this embodiment, the thickness of the semi-permeable ink 2 is controlled between 0.5μm and 5μm.

[0028] Spin coating has better uniformity than seam coating, but spin coating wastes more material. Since spin coating is a full-area coating, seam coating can be applied to specific areas. Spin coating requires wiping the edges of the glass cover plate 1 and has requirements on the way the glass cover plate 1 is transported, such as by clamping the edges.

[0029] The advantage of creating semi-transparent ink 2 by controlling the thickness of the semi-transparent ink 2 is that it requires less equipment and does not need high exposure accuracy; the disadvantage is that the image color in the AA area will be superimposed with the hue of the semi-transparent ink 2, thus changing the displayed hue.

[0030] The disadvantage of creating small holes in the semi-transparent ink is that it requires high exposure and bonding accuracy of the equipment, and a special exposure mold needs to be made according to each display pixel model to create a specific pattern to prevent moiré stripes. Its advantage is that the display image color in the AA area will not change.

[0031] The smoked cover plate produced by the method of the present invention has low cost and high hardness, thereby improving the product competitiveness of the smoked cover plate.

[0032] Furthermore, the thickness of the protective layer 3 is 10nm-300nm.

[0033] Furthermore, the protective layer 3 is fabricated using magnetron sputtering.

[0034] Furthermore, the material of protective layer 3 is a transparent material.

[0035] Furthermore, the protective layer 3 is made of silicon dioxide, silicon nitride, niobium oxide, or titanium oxide, which can protect the semi-transparent ink 2 without affecting the overall color tone of the light-transmitting area; the insulating optical coating does not affect the touch function of the product.

[0036] Furthermore, the colors of the semi-transparent ink 2 and the window ink 4 are in a unified system.

[0037] Furthermore, both the semi-transparent ink 2 and the window ink 4 are black, red, or green.

[0038] Furthermore, the thickness of the window ink 4 is 5μm-25μm, which mainly depends on the opacity of the window ink 4. If the opacity of the window ink 4 is good, it can be made thinner.

[0039] Example 2: The present invention also provides a hidden liquid crystal display screen, which includes a smoked cover plate manufactured by the method of manufacturing a smoked cover plate as described in any of the above embodiments.

[0040] Furthermore, it also includes a display module, with the smoked cover plate fully bonded to the display module.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A method for manufacturing a smoked cover plate, characterized in that, It includes the following steps: Step 1: Provide a glass cover; Step 2: Apply a layer of semi-transparent ink to the glass cover plate by seam coating or spin coating. The transmittance of the semi-transparent ink is achieved by controlling the thickness of the semi-transparent ink or by creating small holes in the semi-transparent ink. The diameter of the small holes is 10μm-100μm. Step 3: Create a protective layer on the semi-transparent ink; Step 4: Apply window ink to the protective layer.

2. The method for manufacturing the smoked cover plate according to claim 1, characterized in that, The thickness of the protective layer is 10nm-300nm.

3. The method for manufacturing the smoked cover plate according to claim 1, characterized in that, The protective layer is fabricated using magnetron sputtering.

4. The method for manufacturing the smoked cover plate according to claim 1, characterized in that, The protective layer is made of a transparent material.

5. The method for manufacturing a smoked cover plate according to claim 4, characterized in that, The protective layer is made of silicon dioxide, silicon nitride, niobium oxide, or titanium oxide.

6. The method for manufacturing a smoked cover plate according to claim 1, characterized in that, The colors of semi-transparent inks and window inks are based on a unified system.

7. The method for manufacturing a smoked cover plate according to claim 1, characterized in that, Both semi-transparent inks and window inks are black, red, or green.

8. The method for manufacturing a smoked cover plate according to claim 1, characterized in that, The thickness of the window ink is 5μm-25μm.

9. A concealed liquid crystal display screen, characterized in that, It includes a smoked cover plate manufactured by the method of manufacturing a smoked cover plate as described in any one of claims 1-8.

10. The concealed liquid crystal display screen according to claim 9, characterized in that, It also includes a display module, and the smoked cover plate is fully bonded to the display module.

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