A preparation method of a display cover plate based on a yellow light process and a display screen

Abstract

The application discloses a preparation method of a display cover plate based on a yellow light process, and a display screen, wherein the preparation method comprises the following steps: providing a transparent or semi-transparent substrate, the transparent or semi-transparent substrate comprising a first printing surface and a second printing surface; printing an ink layer with a preset pattern on the surface of the first printing surface by using ink; the ink is exposure and development ink or photoresist ink; performing exposure and development on the ink layer to form a plurality of hollow holes or a plurality of hollow lines on the ink layer, thereby obtaining the display cover plate based on the yellow light process. When the display cover plate based on the yellow light process is used on the display screen, the display cover plate has the characteristics that the preset pattern can be displayed in the off-screen state of the display screen, and the picture displayed on the display screen can be displayed in the on-screen state of the display screen. When the display cover plate based on the yellow light process is used on the vehicle-mounted display screen, the display screen can be integrated with the decoration pattern of the interior trim.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen decoration, and particularly relates to a display cover plate based on a yellow light process and a preparation method thereof. BACKGROUND

[0002] With the vigorous development of the passenger car market, people's requirements for the aesthetics and technological sense of car interiors are getting higher and higher. Many cars, especially high-end car interiors, are decorated with real wood or simulated wood texture effects, which have a strong sense of luxury.

[0003] At present, the area where the vehicle-mounted display screen is located cannot form an integral decoration effect with the surrounding interior parts due to the presence of the display screen, especially when the display screen is in an off-screen state, a black area is formed. In order to make the display screen in the off-screen state blend in with the wood texture effect of the interior parts and have a high-definition display effect when the screen is on, it is necessary to develop a display screen cover plate with a wood texture effect. However, there is no such display screen with a wood texture effect at present.

[0004] Therefore, the prior art still needs to be further improved and promoted. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a preparation method of a display cover plate based on a yellow light process, and to provide a method for preparing a display cover plate based on a yellow light process. The display cover plate prepared by the method can display a preset pattern in the off-screen state of the display screen and can display the picture displayed by the display screen in the on-screen state of the display screen.

[0006] A preparation method of a display cover plate based on a yellow light process, the display cover plate being used for a display screen, wherein the method comprises:

[0007] providing a transparent or translucent substrate, the transparent or translucent substrate comprising a first printing surface and a second printing surface;

[0008] printing an ink layer with a preset pattern on the surface of the first printing surface using ink; the ink is exposure and development ink or photoresist ink;

[0009] exposure and development of the ink layer to form a plurality of hollow holes or a plurality of hollow lines in the ink layer, thereby obtaining the display cover plate; the display cover plate can display a preset pattern in the off-screen state of the display screen and can display the picture displayed by the display screen in the on-screen state of the display screen.

[0010] Optionally, the preparation method of the display cover plate based on the yellow light process, wherein the printing of the ink layer with a preset pattern on the surface of the first printing surface using exposure and development ink specifically comprises:

[0011] At least three layers of different color dot exposure and development inks are printed on the surface of the first printing surface to obtain an ink layer with a wood grain pattern; the dot exposure and development inks include: a semi-transparent blue dot exposure and development ink, a semi-transparent red dot exposure and development ink, a semi-transparent green dot exposure and development ink, a semi-transparent purple dot exposure and development ink, a semi-transparent black dot exposure and development ink, and a semi-transparent yellow dot exposure and development ink.

[0012] Optionally, the method for manufacturing the display cover plate based on the yellow light process further comprises: printing a first white ink layer on the surface of the ink layer with the preset pattern by using a first white ink, and printing a first black ink layer on the surface of the first white ink layer by using a first black ink, before the ink layer is exposed and developed, wherein the first white ink and the first black ink are exposure and development inks or photoresist inks.

[0013] Optionally, the method for manufacturing the display cover plate based on the yellow light process further comprises: printing a light diffusion ink layer on the surface of the black ink layer.

[0014] Optionally, the method for manufacturing the display cover plate based on the yellow light process further comprises: printing a touch ink layer on the second printing surface by using a touch ink.

[0015] Optionally, the method for manufacturing the display cover plate based on the yellow light process further comprises: printing a second black ink layer on the surface of the substrate by using a second black ink, and printing a second white ink layer on the surface of the second black ink layer by using a second white ink, before the step of printing the ink layer with the preset pattern on the surface of the first printing surface by using an ink.

[0016] A method for manufacturing a display cover plate based on a yellow light process, comprising:

[0017] A substrate made of transparent or semi-transparent material is provided, the substrate made of transparent or semi-transparent material comprises a first printing surface and a second printing surface;

[0018] An ink layer with a preset pattern is printed on the surface of the first printing surface by using a dot ink;

[0019] An exposure and development layer is printed on the surface of the second printing surface by using an exposure and development ink or a photoresist ink;

[0020] The exposure and development layer is exposed and developed to form a plurality of hollow holes or a plurality of hollow lines in the exposure and development layer, thereby obtaining the display cover plate based on the yellow light process.

[0021] Optionally, the preparation method of the display cover plate based on the yellow light process, wherein the surface of the second printing surface is printed with the exposure developing layer by using exposure developing ink or photoresist ink, and the method specifically comprises the following steps.

[0022] The third white exposure developing ink or photoresist ink layer is printed on the surface of the third white exposure developing ink or photoresist ink layer by using the third white exposure developing ink or photoresist ink.

[0023] The third black exposure developing ink or photoresist ink layer is printed on the surface of the third white exposure developing ink or photoresist ink layer by using the third black exposure developing ink or photoresist ink, so as to obtain the exposure developing layer.

[0024] Optionally, the preparation method of the display cover plate based on the yellow light process, wherein the shape of the hole comprises a circle, an ellipse, a triangle, a polygon and a petal shape; and the aperture of the hole is 0.01mm to 0.2mm.

[0025] Optionally, the preparation method of the display cover plate based on the yellow light process, wherein the arrangement mode of the plurality of hollow holes comprises parallel arrangement of the same size, cross arrangement of the same size, parallel arrangement of different sizes and cross arrangement of different sizes; and the arrangement mode of the hollow lines comprises parallel arrangement of the hollow lines and the display screen at an angle of 0 to 90 degrees or cross arrangement of two groups of hollow lines at an angle of 5 to 90 degrees.

[0026] Optionally, the preparation method of the display cover plate based on the yellow light process, wherein when the plurality of hollow lines are arranged in parallel, the line distance between two adjacent lines is 0.01mm to 0.5mm.

[0027] Optionally, the preparation method of the display cover plate based on the yellow light process, wherein the line comprises a solid line segment and a dashed line segment, and the length of the solid line segment and the length of the dashed line segment are 0.5mm to 5mm respectively.

[0028] A display screen, comprising a display cover plate prepared by the preparation method.

[0029] Advantages: Compared with the prior art, the exposure developing ink or photoresist ink is used to print the ink layer with a preset pattern on the surface of the transparent or semi-transparent substrate, the ink layer is exposed and developed, and the hollow holes or lines are formed in the ink layer. The display cover plate prepared by the method has the characteristics that the preset pattern can be displayed in the off-screen state of the display screen, and the picture displayed on the display screen can be displayed in the on-screen state of the display screen. When the display cover plate based on the yellow light process is used for the vehicle-mounted display screen, the display screen can be integrated with the decoration pattern of the interior trim. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A preparation method flowchart of the display cover plate based on the yellow light process is provided for the embodiments of the present application.

[0031] Figure 2 A display cover plate structure schematic diagram based on the yellow light process for the display screen is provided for the embodiments of the present application.

[0032] Figure 3 A color overlay dot schematic diagram is provided.

[0033] Figure 4 A schematic diagram of the arrangement of the hollow holes is provided.

[0034] Figure 5 A display screen use state schematic diagram provided by the embodiment 1 is provided.

[0035] Figure 6 A display screen use state schematic diagram provided by the embodiment 2 is provided. DETAILED DESCRIPTION

[0036] The present application provides a preparation method of a display cover plate based on a yellow light process, in order to make the purpose, technical scheme and effect of the present application more clear and explicit, the present application is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. It should be noted that the first black ink layer and the second black ink layer in the text are only used to distinguish the different sides of the substrate, and are not limited. It can be the same kind of ink or different kinds of ink.

[0037] As shown in Figure 1 The present application provides a preparation method of a display cover plate based on a yellow light process, which comprises the following steps:

[0038] S10, a transparent or translucent substrate is provided, which comprises a first printing surface and a second printing surface;

[0039] S20, an ink layer with a preset pattern is printed on the surface of the first printing surface by using ink; the ink is exposure and development ink or photoresist ink;

[0040] S30, exposure and development are performed on the ink layer, a plurality of hollow holes or a plurality of hollow lines are formed on the ink layer, and the display cover plate is obtained.

[0041] Specifically, the corresponding substrate material can be selected according to actual needs, such as selecting a polymer film piece, one surface of the polymer film piece is used as a printing surface (the surface on which the ink layer with a preset pattern is printed), which is the first printing surface, and the other surface of the polymer film piece is the second printing surface.

[0042] Printing ink on the first printing surface to form a preset pattern, such as a wood grain pattern presented by overprinting with semi-transparent dot exposure and development ink, wherein the printing method includes but is not limited to screen printing, plate printing and digital printing. The dot design of multi-color overprinting to present wood grain effect is staggered dot superposition and in-situ dot superposition, as shown in Figure 3 .

[0043] In an implementation manner of the embodiment, a layer of white exposure and development ink and a layer of black exposure and development ink can be printed on the second printing surface, the white exposure and development ink is printed on the surface of the second printing surface, and the black exposure and development ink is printed on the surface of the white exposure and development ink layer. Through exposure and development, a substrate layer with hollow holes or hollow lines can be printed on the second printing surface, and non-exposure and development ink can be printed on the first printing surface. That is to say, different types of inks are printed on both sides of the transparent or semi-transparent substrate, one side is printed with a non-exposure and development ink layer with a wood grain pattern, and the other side is printed with an exposure and development ink layer, and hollow holes or hollow lines are formed through exposure and development.

[0044] In the embodiment, before the step S30, a white ink layer is printed on the surface of the ink layer with a preset pattern by using white exposure and development ink or photoresist ink and black exposure and development ink or photoresist ink, a black ink layer is printed on the surface of the white ink layer, and then exposure and development is used to form a plurality of hollow holes or a plurality of hollow lines. A light diffusion layer is printed on the surface of the black ink layer by using light diffusion ink.

[0045] Further, a touch ink layer can also be printed on the other side (the second printing surface) of the substrate. The surface of the display cover plate has a three-dimensional touch.

[0046] In an implementation manner of the embodiment, before the step S20, a black ink layer is printed on the surface of the substrate by using white exposure and development ink or photoresist ink and black exposure and development ink or photoresist ink, a white ink layer is printed on the surface of the black ink layer, and then an ink layer with a preset pattern is printed on the surface of the white ink layer, and then exposure and development is used to form a plurality of hollow holes or a plurality of hollow lines. The hollow holes or hollow lines formed through exposure and development can increase the light transmittance.

[0047] In the embodiment, a light diffusion layer can also be printed on the surface of the ink layer with a preset pattern after exposure and development. By setting the light diffusion layer, the light that can transmit is more uniform, and interference is prevented.

[0048] In the embodiment, the screen printing screen plate includes, but is not limited to, polyester screen and steel screen, the mesh is 150-500, the thread count is 60-160, the angle between the screen and the screen frame is 0°, 22.5° and 45°. The specific exposure and development process is prior art, which is not limited herein, and the shape of the hollow hole includes, but is not limited to, circle, ellipse, triangle, polygon and petal.

[0049] In the embodiment, the display cover plate prepared based on the yellow light process has a structure as shown in Figure 2 The display cover plate based on the yellow light process includes a substrate 10 and an ink layer 20 with a preset pattern arranged on the surface of the substrate. The display screen includes, but is not limited to, a vehicle-mounted display screen, a computer display screen, a household appliance display screen and the like. The substrate 10 can be glass or a transparent piece processed from a polymer material, the glass includes, but is not limited to, white glass, green glass and coated glass; the transparent piece includes, but is not limited to, a sheet, a film, a plate and a composite plate made of one or more of polycarbonate, acrylic, polyester and polyimide. The ink layer 20 forms a predetermined pattern through multi-color overprinting, and the pattern includes, but is not limited to, a wood grain texture pattern, a flower and plant pattern, a character pattern and a landscape pattern. The ink used to form the ink layer includes, but is not limited to, semi-transparent screen dot exposure and development ink. The semi-transparent screen dot exposure and development ink includes, but is not limited to, semi-transparent black screen dot exposure and development ink, semi-transparent white screen dot exposure and development ink, semi-transparent red screen dot exposure and development ink, semi-transparent yellow screen dot exposure and development ink, semi-transparent blue screen dot exposure and development ink, semi-transparent purple screen dot exposure and development ink and semi-transparent green screen dot exposure and development ink.

[0050] In the embodiment, a composite ink layer 30 is further arranged on the back surface of the substrate, the composite ink layer 30 can be composed of a white exposure and development ink layer and a black exposure and development ink layer, and the composite ink layer 30 can be used as a substrate layer, so that the picture displayed on the display screen is clearer when the display cover plate is used on the display screen.

[0051] In the embodiment, the semi-transparent multi-color exposure and development ink is used to perform overprinting on the surface of the transparent or semi-transparent substrate, and a preset pattern is formed by color collision, so as to obtain the display cover plate. When the display cover plate is used on the display screen, the preset pattern can be displayed when the display screen is off due to the contrast difference between the two surfaces of the display cover plate, and the picture displayed on the display screen when the display screen is on.

[0052] It should be noted that the wood grain pattern is taken as the preset pattern, and the display is taken as a vehicle-mounted display for further explanation of the present application.

[0053] In the embodiment, the preset patterned ink layer is exposed and developed to form a hollow hole or a hollow line, and in the bright screen state, light can pass through the hollow hole or line, thereby increasing the light transmittance of the display cover plate, which is between 0.5% and 70%, and in the bright screen state, the picture can be clearly displayed on the display cover plate, and the preset pattern on the display cover plate can reduce the interference with the picture. The shape of the hole includes but is not limited to a circle, an ellipse, a triangle, a polygon, or a petal shape; and the line can be a long straight line or a line segment (a solid line segment or a dashed line segment). In the bright screen state, the hollow hole or the hollow line can transmit light, and the hollow accuracy is tens of microns, which cannot be distinguished by the naked eye, and the picture displayed in the display module can be clearly seen.

[0054] Exemplarily, the hollow hole is a circular hole, and the hole diameter can be 0.01 mm to 0.05 mm, 0.05 mm to 0.1 mm, 0.1 mm to 0.15 mm, or 0.15 mm to 0.2 mm. The hole spacing can be 0.01 mm to 0.05 mm, 0.05 mm to 0.1 mm, 0.1 mm to 0.15 mm, or 0.15 mm to 0.2 mm.

[0055] As shown in Figure 4 , the arrangement mode of the hollow hole includes but is not limited to a same-size cross arrangement, a same-size parallel arrangement, a different-size cross arrangement, a different-size parallel arrangement, and the like. It should be noted that the same size can refer to the same hole diameter and / or hole spacing of all the holes, and the different size can refer to different hole diameters and / or hole spacings of all the holes.

[0056] Exemplarily, the width of the hollow line can be 0.01 mm to 0.05 mm, 0.05 mm to 0.1 mm, 0.1 mm to 0.15 mm, 0.15 mm to 0.2 mm, 0.2 mm to 0.25 mm, 0.25 mm to 0.3 mm, 0.3 mm to 0.35 mm, 0.35 mm to 0.4 mm, 0.4 mm to 0.45 mm, or 0.45 mm to 0.5 mm. The line spacing between the lines is 0.01 mm to 0.5 mm. The arrangement mode of the lines includes but is not limited to a 0-degree (angle) to 90-degree parallel arrangement with the display screen, and a 5-degree to 90-degree (angle) cross arrangement of two groups of hollow lines.

[0057] Exemplarily, the hollow line is a solid line segment and a dashed line segment, and the length of the solid line segment and the dashed line segment is 0.5 mm to 5 mm. The arrangement mode of the solid line segment and the dashed line segment includes but is not limited to a 0-degree (angle) to 90-degree parallel arrangement with the display screen, and a 5-degree to 90-degree (angle) cross arrangement of two groups of hollow line segments.

[0058] Based on the same inventive concept, the present application also provides a display screen comprising the display cover plate described above. The display screen is a common display screen in the prior art, such as a display screen on a vehicle, and the shape and specific structure thereof are not limited herein.

[0059] The preparation method of the display cover plate based on the yellow light process provided by the present application is further explained and described below through specific preparation examples.

[0060] Example 1

[0061] A 500-mesh steel screen plate for in-situ overprint dots was used to print a first layer of pigment-type semi-transparent blue dot exposure developing ink on a 1.1-mm-thick glass, which was baked at 80°C for 10 minutes; a 500-mesh steel screen plate for in-situ overprint dots was used to print a second layer of pigment-type semi-transparent red dot exposure developing ink on the first layer of pigment-type semi-transparent blue dot exposure developing ink, which was baked at 80°C for 10 minutes; a 500-mesh steel screen plate for in-situ overprint dots was used to print a third layer of pigment-type semi-transparent yellow dot exposure developing ink on the second layer of pigment-type semi-transparent red dot exposure developing ink, which was baked at 80°C for 10 minutes; a 500-mesh steel screen plate for in-situ overprint dots was used to print a fourth layer of pigment-type semi-transparent black dot exposure developing ink on the third layer of pigment-type semi-transparent yellow dot exposure developing ink, which was baked at 80°C for 10 minutes; a 500-mesh steel screen plate was used to print a fifth layer of white exposure developing ink on the fourth layer of semi-transparent black dot exposure developing ink, which was baked at 80°C for 10 minutes; a 500-mesh steel screen plate was used to print a sixth layer of black exposure developing ink on the fifth layer of white exposure developing ink, which was baked at 80°C for 10 minutes; the ink surface was subjected to one-time exposure and one-time developing process to form a hollow line, the line width of the hollow line was 0.3 mm, the line distance of the hollow line was 0.1 mm, the hollow line was a line segment, the length of the dashed line segment was 3 mm, the length of the solid line segment was 2 mm, and the hollow line was arranged in parallel with the screen at an angle of 30 degrees. The product after exposure and development was baked at 180°C for 30 minutes to obtain a display cover plate. The obtained wood grain display screen had a transmittance of 45% at 550 nm. The display cover plate was assembled to the display screen, so that the wood grain effect could be displayed when the screen was turned off, and high-definition display could be realized when the screen was turned on without interference lines. The display effect is shown in Figure 5 .

[0062] Example 2

[0063] A 500-mesh steel screen with in-situ overprint dots was used to print a pigmented semi- transparent blue dot photobase ink on a 1.3-mm thick glass, which was baked at 80°C for 10 minutes; a pigmented semi-transparent red dot photobase ink was then printed on the pigmented semi-transparent blue dot photobase ink layer using a 500-mesh steel screen with in-situ overprint dots, which was baked at 80°C for 10 minutes; a pigmented semi-transparent yellow dot photobase ink was then printed on the pigmented semi-transparent red dot photobase ink layer using a 500-mesh steel screen with in-situ overprint dots, which was baked at 80°C for 10 minutes; a pigmented semi-transparent black dot photobase ink was then printed on the pigmented semi-transparent yellow dot photobase ink layer using a 500-mesh steel screen with in-situ overprint dots, which was baked at 80°C for 10 minutes; a white exposure and development photobase ink was then printed on the pigmented semi-transparent black dot photobase ink layer using a 500-mesh steel screen, which was baked at 80°C for 10 minutes; a black photobase ink was then printed on the white photobase ink layer using a 500-mesh steel screen, which was baked at 80°C for 10 minutes; the ink surface was then exposed and developed once to form a hollow line, the line width of the hollow line was 0.2 mm; the line distance of the hollow line was 0.3 mm; the hollow line was a line segment, wherein the length of the dashed line segment was 3 mm and the length of the solid line segment was 2 mm; the hollow line was arranged in parallel with the screen at an angle of 45 degrees. The product after exposure and development was baked at 180°C for 30 minutes to obtain a display cover plate. The wood texture display screen obtained had a transmittance of 30% at 550 nm. The display cover plate was assembled to the display screen, which could display a wood texture effect when the screen was turned off and could display a high-definition display without interference lines when the screen was turned on. The display effect is shown in Figure 6

[0064] Example 3

[0065] A 500-mesh steel screen with in-situ overprint dots was used to print a pigmented semi- transparent blue dot photobase ink on a 1.3-mm thick glass, which was baked at 80°C for 10 minutes; a pigmented semi-transparent red dot photobase ink was then printed on the pigmented semi-transparent blue dot photobase ink layer using a 500-mesh steel screen with in-situ overprint dots, which was baked at 80°C for 10 minutes; a pigmented semi-transparent yellow dot photobase ink was then printed on the pigmented semi-transparent red dot photobase ink layer using a 500-mesh steel screen with in-situ overprint dots, which was baked at 80°C for 10 minutes; a pigmented semi-transparent black dot photobase ink was then printed on the pigmented semi-transparent yellow dot photobase ink layer using a 500-mesh steel screen with in-situ overprint dots, which was baked at 80°C for 10 minutes.

[0066] ​A 1.1 mm thick glass was printed with a 500 mesh steel screen plate to form a white exposure and development ink layer on the non-printed surface of the green glass, and baked at 80°C for 10 minutes. A 500 mesh steel screen plate was used to print a black exposure and development ink layer on the white exposure and development ink layer, and baked at 80°C for 10 minutes to obtain a composite ink layer. The composite ink layer was subjected to one exposure and one development process to form a hollow line with a line width of 0.1 mm. The line distance of the hollow line was 0.5 mm. The hollow line was a line segment, wherein the length of the dashed line segment was 3 mm and the length of the solid line segment was 2 mm. The hollow line was arranged in parallel with the screen at an angle of 35 degrees. The product after exposure and development was baked at 180°C for 30 minutes to obtain a display cover plate. The wood texture display screen obtained had a transmittance of 25% at 550 nm. The display cover plate was assembled to the display screen to realize the display of wood texture effect when the screen was turned off and high-definition display when the screen was turned on without interference lines.

[0067] Example 4

[0068] A 1.1 mm thick glass was printed with a 500 mesh steel screen plate to form a white exposure and development ink layer on the non-printed surface of the green glass, and baked at 80°C for 10 minutes. A 500 mesh steel screen plate was used to print a black exposure and development ink layer on the white exposure and development ink layer, and baked at 80°C for 10 minutes to obtain a composite ink layer. The composite ink layer was subjected to one exposure and one development process to form a hollow line with a line width of 0.1 mm. The line distance of the hollow line was 0.5 mm. The hollow line was a line segment, wherein the length of the dashed line segment was 3 mm and the length of the solid line segment was 2 mm. The hollow line was arranged in parallel with the screen at an angle of 35 degrees. The product after exposure and development was baked at 180°C for 30 minutes to obtain a display cover plate. The wood texture display screen obtained had a transmittance of 25% at 550 nm. The display cover plate was assembled to the display screen to realize the display of wood texture effect when the screen was turned off and high-definition display when the screen was turned on without interference lines.

[0069] Example 5

[0070] A 500-mesh steel screen printing plate with in-situ overprint dots is used to print a first layer of pigment type semi-transparent blue dot exposure developing ink on a 1.1 mm thick glass, which is baked at 80°C for 10 minutes; a 500-mesh steel screen printing plate with in-situ overprint dots is used to print a second layer of pigment type semi-transparent red dot exposure developing ink on the first layer of pigment type semi-transparent blue dot exposure developing ink, which is baked at 80°C for 10 minutes; a 500-mesh steel screen printing plate with in-situ overprint dots is used to print a third layer of pigment type semi-transparent yellow dot exposure developing ink on the second layer of pigment type semi-transparent red dot exposure developing ink, which is baked at 80°C for 10 minutes; a 500-mesh steel screen printing plate with in-situ overprint dots is used to print a fourth layer of pigment type semi-transparent black dot exposure developing ink on the third layer of pigment type semi-transparent yellow dot exposure developing ink, which is baked at 80°C for 10 minutes; a 500-mesh steel screen printing plate is used to print a layer of white exposure developing ink on the fourth layer of semi-transparent black dot exposure developing ink, which is baked at 80°C for 10 minutes; a 500-mesh steel screen printing plate is used to print a layer of black exposure developing ink on the layer of white exposure developing ink, which is baked at 80°C for 10 minutes; the ink surface is subjected to a one-time exposure and one-time developing process to form hollow holes, the diameter of the hollow holes is 0.3 mm, the pitch of the hollow holes is 0.1 mm, and the hollow holes are arranged in the same size and cross arrangement. A layer of light diffusion ink is printed on the surface of the exposure and development ink layer, which is baked at 180°C for 40 minutes to obtain a display cover plate. The wood texture display screen obtained has a transmittance of 46% at 550 nm.

[0071] In summary, the present application provides a display cover plate preparation method based on a yellow light process and a display screen, which comprises the following steps: providing a transparent or semi-transparent substrate, wherein the transparent or semi-transparent substrate comprises a first printing surface and a second printing surface; printing an ink layer with a preset pattern on the surface of the first printing surface by using ink; the ink is exposure developing ink or photoresist ink; the ink layer is subjected to exposure and development to form a plurality of hollow holes or a plurality of hollow lines on the ink layer, thereby obtaining the display cover plate. Alternatively, a semi-transparent dot ink is used to print an ink layer with a preset pattern on the first printing surface, and an exposure developing ink is used to print an exposure developing layer on the second printing surface to form a plurality of hollow holes or a plurality of lines. When the display cover plate is used on a display screen, it has the characteristics that it can display a preset pattern in the off-screen state of the display screen, and it can display the picture displayed on the display screen in the on-screen state of the display screen. When the display cover plate is used on a vehicle display screen, it can make the display screen and the decoration pattern of the interior trim part integrated.

[0072] It should be understood that the application of the present application is not limited to the above examples, and those of ordinary skill in the art can make improvements or changes according to the above description, and all such improvements and changes shall fall within the protection scope of the appended claims of the present application.

Claims

1. A method for manufacturing a display cover plate based on a yellow light process, the display cover plate being used for a display screen, characterized in that, The method comprises: providing a transparent or semi-transparent substrate, the transparent or semi-transparent substrate comprising a first printing surface and a second printing surface; printing an ink layer with a preset pattern on the surface of the first printing surface by using ink; the ink is exposure development ink or photoresist ink; exposure development is performed on the ink layer to form a plurality of hollow holes or a plurality of hollow lines on the ink layer, thereby obtaining the display cover plate; when the display cover plate is used for a display screen, the display cover plate can display the preset pattern in an off-screen state of the display screen and can display the picture displayed on the display screen in an on-screen state of the display screen; the step of printing the ink layer with a preset pattern on the surface of the first printing surface by using exposure development ink specifically comprises: at least three layers of net dot exposure development ink with different colors are printed on the surface of the first printing surface by using overprint printing, thereby obtaining an ink layer with a wood grain texture pattern; the net dot exposure development ink comprises semi-transparent blue exposure development net dot ink, semi-transparent red exposure development net dot ink, semi-transparent green exposure development net dot ink, semi-transparent purple exposure development net dot ink, semi-transparent black exposure development net dot ink and semi-transparent yellow exposure development net dot ink; before the step of printing the ink layer with a preset pattern on the surface of the first printing surface by using ink, a second black ink layer is printed on the surface of the substrate by using second black ink, and a second white ink layer is printed on the surface of the second black ink layer by using second white ink; the second white ink and the second black ink are both exposure development ink or photoresist ink.

2. The method of claim 1, wherein the method is performed by a yellow light process. before the step of performing exposure development on the ink layer, a first white ink layer is printed on the surface of the ink layer with a preset pattern by using first white ink, and a first black ink layer is printed on the surface of the first white ink layer by using first black ink; the first white ink and the first black ink are both exposure development ink or photoresist ink.

3. The method of manufacturing a display cover plate based on a yellow light process according to claim 2, characterized in that, further comprising: a light diffusion ink layer is printed on the surface of the black ink layer.

4. The method of any of claims 1-3, wherein the method is a yellow light process based method. a touch ink layer is printed on the second printing surface by using touch ink. 5.A method for manufacturing a display cover plate based on a yellow light process, characterized in that, The method comprises: providing a transparent or semi-transparent substrate, the transparent or semi-transparent substrate comprising a first printing surface and a second printing surface; printing an ink layer with a preset pattern on the surface of the first printing surface by using net dot ink; printing an exposure development layer on the surface of the second printing surface by using exposure development ink or photoresist ink; performing exposure development on the exposure development layer to form a plurality of hollow holes or a plurality of hollow lines on the exposure development layer, thereby obtaining the display cover plate based on the yellow light process; the step of printing the exposure development layer on the surface of the second printing surface by using exposure development or photoresist ink specifically comprises: a third white exposure development or photoresist ink layer is printed on the surface of the second printing surface by using third white exposure development or photoresist ink; a third black exposure development or photoresist ink layer is printed on the surface of the third white exposure development or photoresist ink layer by using third black exposure development or photoresist ink, thereby obtaining the exposure development layer.

6. The method of any one of claims 1-5, wherein the method is a yellow light process based method. The arrangement mode of the plurality of hollow holes includes: same size parallel arrangement, same size cross arrangement, different size parallel arrangement, and different size cross arrangement; and the arrangement mode of the hollow lines includes: parallel arrangement of the hollow lines with the display screen at 0-90 degrees or cross arrangement of two groups of hollow lines at 5-90 degrees.

7. A display screen, characterized by Comprise: The display cover plate prepared by the preparation method in any one of claims 1-3 or 5-6. The display cover plate prepared by the preparation method in any one of claims 1-3 or 5-6.

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