Edge repairing process of glass cover plate

Abstract

According to the edge repairing technology of the glass cover plate, the necessary processes (manual surface oil wiping, jig lower cover assembling and bearing film attaching) of spraying edge repairing are omitted through attaching and then silk-screen edge repairing, the raw material and labor cost is greatly reduced, on the basis, the product structure characteristics are combined, specific silk-screen parameters are selected, and the edge repairing efficiency is greatly improved. The first pass yield and the production efficiency are obviously improved; and moreover, the controllability of the silk-screen printing ink is obviously higher than that of the spray printing ink, so that the finally obtained finished product is light-proof, smooth in edge and not easy to fall off.

Description

Technical Field

[0001] The present invention relates to the field of glass product processing, and in particular to a glass cover plate edge filling process. Background Art

[0002] With the demand of the consumer market, more and more glass cover plates are developing towards 2.5D and 3D. However, this type of glass cover plate has a certain degree of curvature, and it is difficult for the membrane to fit it completely. In addition, the curved edge of this type of glass cover plate is relatively weak and is prone to breaking when subjected to external impact.

[0003] The traditional glass cover processing process is: lamination + carrier film + plasma decontamination + assembly jig lower cover + spraying a layer of ink + surface drying + spraying a second layer of ink + surface drying + wiping the surface oil + final baking. However, spraying ink edge filling not only requires manual use of thinner to wipe the surface oil, but also has high costs and low finished product pass rate.

[0004] Silk screen printing is the world's most adaptable and widely used printing method. Many technicians intend to replace the spray ink in traditional glass cover plates with silk screen ink. However, when faced with products with complex structures, the edge filling effect obtained by this replacement is unsatisfactory. Therefore, how to achieve better edge filling effect through silk screen printing is an urgent problem that technicians in this field need to solve. Summary of the Invention

[0005] In order to solve the technical problems existing in the background technology, the present invention proposes a process for filling the edge of a glass cover plate, which comprises the following steps:

[0006] The glass cover plate covered with the membrane is screen-printed with ink multiple times.

[0007] In the present invention, the inventor has made a breakthrough in setting the traditional spray filling to silk screen filling. On the one hand, the ink is highly controllable during silk screen printing, and there will be no ink flying phenomenon. The edge of the silk screen ink is relatively smooth, and the necessary operations of the traditional spray filling process - manual wiping of surface oil, assembly of the jig lower cover and lamination of the carrier film can be eliminated, which greatly reduces the labor cost (reduced by 84.6% of labor cost) and raw material cost (ink consumption is reduced by 93.75%, see Comparative Example 1, when one kilogram of ink is sprayed, only 500 products can be filled, while when silk screen printing, 8,000 products can be filled). The reduction in labor cost also greatly improves the efficiency of the process flow (efficiency is increased by 80%); on the other hand, silk screen printing on a glass cover plate covered with a film instead of silk screen printing first and then covering the film can also effectively improve the product's light transmittance and lamination strength.

[0008] The multiple silk-screen printing edge fillings include a first silk-screen printing and a second silk-screen printing, and the first silk-screen printing ink and the second silk-screen printing ink have the same coverage.

[0009] Generally, when the thickness of screen printing ink reaches 0.003-0.004mm, the ink is still translucent under strong light. However, if the ink is printed too thickly in one time, some products will become translucent. Too many screen printing times will lead to problems such as reduced efficiency and positioning deviation. Therefore, screen printing the ink twice can effectively balance the production pass rate and efficiency.

[0010] The thickness of the first silk-screen printing ink is 8-14 μm, and the thickness of the second silk-screen printing ink is 16-28 μm.

[0011] After the first screen printing is completed, the first screen printing ink is subjected to surface drying, and after the second screen printing is completed, the second screen printing ink is subjected to final baking;

[0012] Preferably, the final baking temperature is 60-100° C., and the final baking time is 30-80 minutes.

[0013] The mesh size of the screen used for the silk-screen filling is 30-120T, the screen tension is 18-22N, the screen angle is 50-90°, the printing speed is 80-100MM / S, the ink return speed is 200-300MM / S, the scraper hardness is 80 degrees, the scraper angle is 35-75°, the screen photosensitive adhesive thickness is 12-16μm, the mesh spacing is 2-5mm, and the scraper ink scraping pressure is to press down 0.3mm after the scraper contacts the glass cover plate.

[0014] The glass cover plate covered with a membrane comprises a membrane and a glass substrate, wherein the glass substrate comprises a smooth surface and a side surface, and the intersection edge between the smooth surface covered with the membrane and the side surface of the glass substrate has a chamfered structure, wherein the chamfer angle is 45° and the chamfer width is 0.1 mm;

[0015] Preferably, the glass substrate is a 2D glass substrate or a 2.5D glass substrate.

[0016] In the present invention, the silk-screen edge filling method is highly applicable and can be applied to 2D glass substrates, 2.5D glass substrates and 3D glass substrates.

[0017] The film covers the smooth surface of the glass substrate. The smooth surface of the glass substrate has an inner shrinkage edge not covered by the film, and the width of the inner shrinkage edge is 0.2-0.3 mm.

[0018] The silk screen ink continuously covers the 1-3 mm edge of the diaphragm and the inner shrinkage and chamfer structures of the smooth surface of the glass substrate not covered by the diaphragm.

[0019] In the present invention, the ink forms a continuous ink layer on the edge, inner shrinkage and chamfered surface of the diaphragm, which not only makes the diaphragm fit more closely with the glass substrate, but also fills the gaps on the surface of the glass cover plate to prevent the product from having light transmission. The ink is in a fluid state during printing, and there is a height difference between the diaphragm and the glass panel. The appropriate inner shrinkage can avoid the ink fault phenomenon and prevent light transmission. In addition, the reason for not using a conventional screen angle is that the inventor accidentally discovered that using a conventional screen angle will cause the silk-screened product to have different colors / light transmission.

[0020] The width of the chamfered structure covered by the silk screen ink is 0.01-0.07 mm.

[0021] In the present invention, the ink does not need to fully cover the chamfered surface. As long as it covers the chamfer width within 0.07 mm, the requirement of being opaque can be achieved. When light is incident on the chamfer from the edge of the smooth surface, refraction or total reflection will occur. When the ink coverage width matches the area where the light is refracted, there will be no light transmission.

[0022] The method further includes plasma cleaning the glass cover plate before the ink is silk-screened on the glass cover plate covered with the membrane.

[0023] Beneficial effects of the present invention:

[0024] (1) The screen printing edge filling process for glass cover plates of the present invention significantly reduces labor and raw material costs while effectively improving efficiency and pass rate;

[0025] (2) The silk-screen printing edge filling process of the glass cover plate of the present invention is highly applicable and can be applied to 3D and other curvature products;

[0026] (3) By covering the specific area with ink, the bonding strength between the film and the glass substrate is effectively increased and the light transmission phenomenon is improved;

[0027] (4) The ink forms a continuous covering layer on the edge of the diaphragm, the inner shrinkage edge and the chamfered bevel edge. The formed edge structure can effectively improve the impact performance of the glass cover and thus reduce the edge chipping rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a partial side view of the glass cover before screen printing ink in Example 1;

[0029] Figure 2 This is a front view of the glass cover before screen printing ink in Example 1;

[0030] Figure 3 This is a partial front view of the glass cover before the ink is screen-printed in Example 1;

[0031] Figure 4 This is a schematic diagram of the product before the glass cover plate is screen-printed with ink in Example 1;

[0032] Figure 5 This is a schematic diagram of the product after the glass cover plate is screen-printed with ink in Example 1. DETAILED DESCRIPTION

[0033] To facilitate understanding of the present invention, the present invention will be described more fully below in conjunction with specific embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0035] The technical solution of the present invention is described more clearly and completely below with reference to specific embodiments and comparative examples.

[0036] Example 1

[0037] This embodiment provides a process for filling the edge of a glass cover plate, and the steps are as follows:

[0038] S1. Laminating a film (0.15 mm thick) to the smooth surface of a 2.5D glass substrate (0.15 mm thick, 0.10 mm chamfer, 45°). The edge of the film is 0.17 mm inwardly contracted from the edge of the glass substrate to obtain a 2.5D glass cover.

[0039] S2. Design the product appearance with a 1:1 line width and a 2mm film pattern, and transfer the film pattern to the stencil;

[0040] S3, plasma-treating the 2.5D glass cover plate to remove oil stains from the 2.5D glass cover plate, placing the plasma-treated 2.5D glass cover plate on a baking tray, performing a first silk-screen printing on the 2.5D glass cover plate, wherein the thickness of the first silk-screen printing ink is 10 μm, performing a surface drying treatment on the 2.5D glass cover plate after the first silk-screen printing, wherein the surface drying temperature is 25° C. and the surface drying time is 90 seconds, performing a second silk-screen printing on the 2.5D glass cover plate after the surface drying treatment, wherein the thickness of the second silk-screen printing ink is 20 μm, and then placing the second silk-screen printing 2.5D glass cover plate in an oven for final baking, wherein the final baking temperature is 80° C. and the final baking time is 60 minutes;

[0041] The first and second silk screen printings mentioned above were both printed using a fully automatic turntable machine. The baking tray was placed at the loading position for 150 pieces at a time. The robot automatically took the pieces and placed them on the fixture for full-automatic silk screen printing. The parameter settings are as follows: screen mesh: 60T, screen tension: 20N, screen angle is 60°, printing speed: 90MM / S, ink return speed: 270MM / S, scraper hardness: 80 degrees, scraper pressure: after contacting the glass surface, press down 0.3mm, scraper angle: 60°, vacuum suction: 0.6Mpa, screen photosensitive adhesive thickness: 15μm, screen and platform distance: 3mm.

[0042] Depend on Figure 2 It can be seen that when the glass cover is observed against the light before the screen printing edge filling, the inner edge shrinkage and light transmission phenomenon are very obvious. Figure 4 and Figure 5 It can be seen that after the glass cover is edge-filled, the light transmission phenomenon disappears. Figure 4 The bright edge is the inward-shrinking edge. Since the edge has not been filled at this time, the inward-shrinking edge will show light when viewed against the light. Figure 5 The white line frame is the padding area.

[0043] Example 2

[0044] This embodiment provides a process for filling the edge of a glass cover plate, and the steps are as follows:

[0045] S1. Laminating a film (0.15 mm thick) to the smooth surface of a 2.5D glass substrate (0.15 mm thick, 0.10 mm chamfer, 45°), with the edge of the film retracted 0.3 mm from the edge of the glass substrate, to obtain a 2.5D glass cover.

[0046] S2. Design the product appearance with a 1:1 line width and a 2mm film pattern, and transfer the film pattern to the stencil;

[0047] S3, plasma-treating the 2.5D glass cover plate to remove oil stains on the 2.5D glass cover plate, placing the plasma-treated 2.5D glass cover plate on a baking tray, performing a first silk-screen printing on the 2.5D glass cover plate, wherein the thickness of the first silk-screen printing ink is 10 μm, performing a surface drying treatment on the 2.5D glass cover plate after the first silk-screen printing, wherein the surface drying temperature is 25° C. and the surface drying time is 90 seconds, performing a second silk-screen printing on the 2.5D glass cover plate after the surface drying treatment, wherein the thickness of the second silk-screen printing ink is 20 μm, and then placing the second silk-screen printing 2.5D glass cover plate in an oven for final baking, wherein the final baking temperature is 70° C. and the final baking time is 80 minutes;

[0048] The first and second screen printing processes were both performed using a fully automatic turntable machine. The baking tray was placed at a loading position of 150 sheets at a time. The robot automatically placed the sheets on the jig for full-automatic screen printing. The parameters were set as follows: screen mesh: 100T, screen tension: 22N, screen angle: 80°, printing speed: 80MM / S, ink return speed: 200MM / S, scraper hardness: 80 degrees, scraper pressure: after contacting the glass surface, press down 0.3mm, scraper angle: 35°, vacuum suction: 0.6Mpa, screen photosensitive adhesive thickness: 15μm, and screen-to-platform distance: 5mm.

[0049] Example 3

[0050] This embodiment provides a process for filling the edge of a glass cover plate, and the steps are as follows:

[0051] S1. Laminating a film (0.15 mm thick) to the smooth surface of a 2.5D glass substrate (0.15 mm thick, 0.10 mm chamfer, 45°). The edge of the film is 0.25 mm inward from the edge of the glass substrate. After lamination, a 2.5D glass cover is obtained.

[0052] S2. Design the product appearance with a 1:1 line width and a 2mm film pattern, and transfer the film pattern to the stencil;

[0053] S3, plasma-treating the 2.5D glass cover plate to remove oil stains from the 2.5D glass cover plate, placing the plasma-treated 2.5D glass cover plate on a baking tray, performing a first silk-screen printing on the 2.5D glass cover plate, wherein the thickness of the first silk-screen printing ink is 8 μm, performing a surface drying treatment on the 2.5D glass cover plate after the first silk-screen printing, wherein the surface drying temperature is 25° C. and the surface drying time is 60 seconds, performing a second silk-screen printing on the 2.5D glass cover plate after the surface drying treatment, wherein the thickness of the second silk-screen printing ink is 25 μm, and then placing the second silk-screen printing 2.5D glass cover plate in an oven for final baking, wherein the final baking temperature is 90° C. and the final baking time is 50 minutes;

[0054] The first and second screen printings mentioned above were both printed using a fully automatic turntable machine. The baking tray was placed at a loading position of 150 sheets each time, and the robot automatically took and placed them on the fixture for fully automatic screen printing. The parameter settings were as follows: screen mesh: 120T, screen tension: 18N, screen angle: 65°, printing speed: 100MM / S, ink return speed: 300MM / S, scraper hardness: 80 degrees, scraper pressure: after contacting the glass surface, press down 0.3mm, scraper angle: 75°, vacuum suction: 0.8Mpa, screen photosensitive adhesive thickness: 12μm, and the distance between the screen and the platform: 2mm.

[0055] Example 4

[0056] This embodiment provides a process for filling the edge of a glass cover plate, and the steps are as follows:

[0057] S1. Laminating a film (0.15 mm thick) to the smooth surface of a 2.5D glass substrate (0.15 mm thick, 0.10 mm chamfer, 45°). The edge of the film is 0.25 mm inward from the edge of the glass substrate. After lamination, a 2.5D glass cover is obtained.

[0058] S2. Design the product appearance with a 1:1 line width and a 2mm film pattern, and transfer the film pattern to the stencil;

[0059] S3, plasma-treating the 2.5D glass cover plate to remove oil stains from the 2.5D glass cover plate, placing the plasma-treated 2.5D glass cover plate on a baking tray, performing a first silk-screen printing on the 2.5D glass cover plate, wherein the thickness of the first silk-screen printing ink is 14 μm, performing a surface drying treatment on the 2.5D glass cover plate after the first silk-screen printing, wherein the surface drying temperature is 25° C. and the surface drying time is 90 seconds, performing a second silk-screen printing on the 2.5D glass cover plate after the surface drying treatment, wherein the thickness of the second silk-screen printing ink is 16 μm, and then placing the second silk-screen printing 2.5D glass cover plate in an oven for final baking, wherein the final baking temperature is 80° C. and the final baking time is 60 minutes;

[0060] The first and second screen printing processes were both performed using a fully automatic turntable machine. The baking tray was placed at a loading position of 150 sheets at a time. The robot automatically placed the sheets on the fixture for full-automatic screen printing. The parameters were set as follows: screen mesh: 70T, screen tension: 20N, screen angle: 70°, printing speed: 80MM / S, ink return speed: 230MM / S, scraper hardness: 80 degrees, scraper pressure: after contacting the glass surface, press down 0.3mm, scraper angle: 50°, vacuum suction: 0.5Mpa, screen photosensitive adhesive thickness: 15μm, and screen-to-platform distance: 5mm.

[0061] Example 5

[0062] This embodiment provides a process for filling the edge of a glass cover plate, and the steps are as follows:

[0063] S1. Laminating a film (0.15 mm thick) to the smooth surface of a 2.5D glass substrate (0.15 mm thick, 0.10 mm chamfer, 45°), with the edge of the film retracted 0.3 mm from the edge of the glass substrate, to obtain a 2.5D glass cover.

[0064] S2. Design the product appearance with a 1:1 line width and a 2mm film pattern, and transfer the film pattern to the stencil;

[0065] S3, plasma-treating the 2.5D glass cover plate to remove oil stains from the 2.5D glass cover plate, placing the plasma-treated 2.5D glass cover plate on a baking tray, performing a first silk-screen printing on the 2.5D glass cover plate, wherein the thickness of the first silk-screen printing ink is 10 μm, performing a surface drying treatment on the 2.5D glass cover plate after the first silk-screen printing, wherein the surface drying temperature is 25° C. and the surface drying time is 90 seconds, performing a second silk-screen printing on the 2.5D glass cover plate after the surface drying treatment, wherein the thickness of the second silk-screen printing ink is 28 μm, and then placing the second silk-screen printing 2.5D glass cover plate in an oven for final baking, wherein the final baking temperature is 100° C. and the final baking time is 30 minutes;

[0066] The first and second screen printing processes were both performed using a fully automatic turntable machine. The baking tray was placed at a loading position of 150 sheets at a time. The robot automatically placed the sheets on the jig for full-automatic screen printing. The parameters were set as follows: screen mesh: 75T, screen tension: 21N, screen angle: 55°, printing speed: 90MM / S, ink return speed: 270MM / S, scraper hardness: 80 degrees, scraper pressure: after contacting the glass surface, press down 0.3mm, scraper angle: 45°, vacuum suction: 0.7Mpa, screen photosensitive adhesive thickness: 12μm, and screen-to-platform distance: 4mm.

[0067] Comparative Example 1

[0068] This comparative example proposes a glass cover edge filling process, the steps of which are the same as those in Example 1, except that the silk screen printing in step S2 is replaced by spraying.

[0069] In Comparative Example 1, the traditional spray filling process is adopted. Regarding the operating steps, spraying relies on the deposition of atomized ink particles, and flying ink is inevitable during spraying. This flying ink phenomenon wastes ink, and in the process of spray filling, in order to make the ink cover the ideal range, it is necessary to fit the carrier film to the sprayed surface before spraying, and it is also necessary to assemble the lower cover of the fixture to prevent the ink from contaminating the workbench. The final product still needs to be manually wiped of the surface oil, while when silk-screen filling, the above-mentioned complicated operations can be omitted; regarding the raw material cost, when spraying, 1 kilogram of ink can only fill the edges of 500 products, when silk-screen printing, one kilogram of ink can also fill the edges of 8,000 products; regarding labor cost, under the same conditions, 3 people are required to start the spray filling machine and 10 people are required to wipe the surface oil, while silk-screen filling only requires 2 people.

[0070] Comparative Example 2

[0071] This comparative example proposes a process for filling the edge of a glass cover plate, and the steps are the same as those in Example 1, except that the order of steps S1 and S3 is swapped.

[0072] In Comparative Example 2, when screen printing is performed first and then the edges are filled, on the one hand, the thickness of the screen printing ink can only reach 6 μm at most, and the ink of this thickness is translucent under strong light; on the other hand, when screen printing is performed first and then laminating, the ink cannot cover the chamfered edges through screen printing, further aggravating the translucency phenomenon; further, since there must be a certain error between lamination and screen printing, when screen printing is performed first and then laminating, there is always a gap between the membrane and the ink, and the final product is very translucent.

[0073] Comparative Example 3

[0074] This comparative example proposes a glass cover edge filling process, the steps of which are the same as those in Example 1, except that the first and second silk screen printings in step S3 are combined into one silk screen printing operation, and the total thickness of the two silk screen printing inks in Example 1 (30 μm) is kept the same as the silk screen printing ink thickness (30 μm) in Comparative Example 3.

[0075] In Comparative Example 3, although the screen printing ink thickness (30 μm) is theoretically not light-transmissive, since a thicker ink is screen-printed at one time, the ink will collapse at the edge of the chamfered surface due to gravity or surface tension, forming a "jagged" or "wavy" boundary (error ≥ 0.1 mm), resulting in a low pass rate.

[0076] Comparative Example 4

[0077] This comparative example proposes a glass cover edge filling process, the steps of which are the same as those in Example 1, except that in step S1, "the edge of the diaphragm is 0.2 mm inward compared to the edge of the glass substrate" is replaced with "the edge of the diaphragm is 0.05 mm inward compared to the edge of the glass substrate."

[0078] In Comparative Example 4, since the edge of the diaphragm is much smaller than the edge of the glass substrate indentation, the ink will cover the edge of the diaphragm, forming a "step fault" and causing light transmission.

[0079] Comparative Example 5

[0080] This comparative example proposes a glass cover edge filling process, and its steps are the same as those in Example 1, except that the "film image with a 1:1 line width and 2 mm design product shape" in step S1 is replaced with "film image with a 1:1 line width and 0.3 mm design product shape".

[0081] In Comparative Example 5, since the ink coverage does not include the edge of the diaphragm, the ink will also have a fault phenomenon, which will not only cause light to penetrate, but also reduce the tightness of the bonding between the diaphragm and the glass substrate, causing the diaphragm to delaminate at the edge.

[0082] The above examples and comparative examples were subjected to performance tests, and the test results are shown in Table 1:

[0083] The peel strength test was carried out in accordance with GB / T2792-1995 “Test method for 180° peel strength of pressure-sensitive adhesive tapes”. The peel strength of the film on the surface of the glass cover was measured using an electronic universal testing machine at a peel rate of 300 mm / min.

[0084] Table 1 Performance tests of various embodiments and comparative examples

[0085] sample Peel strength (N / cm) Is it translucent? First pass rate (%) Example 1 23.3 no 60 Example 2 21.6 no 53 Example 3 22.5 no 58 Example 4 25.1 no 55 Example 5 21.8 no 60 Comparative Example 1 19.1 yes 20 Comparative Example 2 13.7 Yes, severe light transmission 15 Comparative Example 3 15.8 yes 31 Comparative Example 4 17.4 yes 23 Comparative Example 5 11.6 yes 27

[0086] It can be seen from the above embodiments and comparative examples that the ink is uncontrollable and the pass rate is low when spraying to fill the edges, but simply replacing spraying with screen printing cannot directly achieve a better filling effect. The coverage range of the screen printing ink and the specific operation of the screen printing filling have a decisive effect on the filling effect.

[0087] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A glass cover edge filling process, characterized in that: The edge filling process comprises the following steps: The glass cover plate covered with the membrane is screen-printed with ink multiple times.

2. The edge filling process of the glass cover plate according to claim 1, characterized in that: The multiple silk-screen printing edge fillings include a first silk-screen printing and a second silk-screen printing, and the first silk-screen printing ink and the second silk-screen printing ink have the same coverage.

3. The edge filling process of the glass cover plate according to claim 1 or 2, characterized in that: The thickness of the first silk-screen printing ink is 8-14 μm, and the thickness of the second silk-screen printing ink is 16-28 μm.

4. The edge filling process of the glass cover according to any one of claims 1 to 3, characterized in that: After the first screen printing is completed, the first screen printing ink is subjected to surface drying, and after the second screen printing is completed, the second screen printing ink is subjected to final baking; Preferably, the final baking temperature is 60-100° C., and the final baking time is 30-80 minutes.

5. The process for filling the edge of a glass cover according to any one of claims 1 to 4, characterized in that: The mesh size of the screen used for the silk-screen filling is 30-120T, the screen tension is 18-22N, the screen angle is 50-90°, the printing speed is 80-100MM / S, the ink return speed is 200-300MM / S, the scraper hardness is 80 degrees, the scraper angle is 35-75°, the screen photosensitive adhesive thickness is 12-16μm, the mesh spacing is 2-5mm, and the scraper ink scraping pressure is to press down 0.3mm after the scraper contacts the glass cover plate.

6. The edge filling process of the glass cover according to any one of claims 1 to 5, characterized in that: The glass cover plate covered with a membrane comprises a membrane and a glass substrate, wherein the glass substrate comprises a smooth surface and a side surface, and the intersection edge between the smooth surface covered with the membrane and the side surface of the glass substrate has a chamfered structure, wherein the chamfer angle is 45° and the chamfer width is 0.1 mm; Preferably, the glass substrate is a 2D glass substrate or a 2.5D glass substrate.

7. The glass cover edge filling process according to claim 6, characterized in that: The film covers the smooth surface of the glass substrate. The smooth surface of the glass substrate has an inner shrinkage edge not covered by the film, and the width of the inner shrinkage edge is 0.2-0.3 mm.

8. The glass cover edge filling process according to claim 6 or 7, characterized in that: The silk screen ink continuously covers the 1-3 mm edge of the diaphragm and the inner shrinkage and chamfer structures of the smooth surface of the glass substrate not covered by the diaphragm.

9. The glass cover edge filling process according to any one of claims 6 to 8, characterized in that: The width of the chamfered structure covered by the silk screen ink is 0.01-0.07 mm.

10. The glass cover edge filling process according to any one of claims 1 to 9, characterized in that: The method further includes plasma cleaning the glass cover plate before the ink is silk-screened on the glass cover plate covered with the membrane.

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