Method for repairing anti-fingerprint coating on surface of display screen cover plate

Abstract

The invention discloses a method for repairing an anti-fingerprint coating on the surface of a display screen cover plate. The method comprises the following steps: firstly, adding an AF main agent into an AF diluent, uniformly mixing, and standing, so that the AF main agent is uniformly dispersed to obtain an AF repairing liquid; the siloxane terminal in the active component perfluoropolyether siloxane in the AF main agent is hydrolyzed into silicon hydroxyl in advance; dipping the non-dust cloth in absolute ethyl alcohol, wiping the whole surface of the display screen cover plate once, drying by a blower, dipping the non-dust cloth in an AF diluent, wiping once, and drying by the blower; after the AF repairing liquid is uniformly sprayed on the surface of the screen cover plate, the AF repairing liquid is leveled for 3-5 seconds, and the display screen cover plate is uniformly wiped once in the transverse direction by using dust-free cloth; the spraying and leveling actions are repeated according to the same method, the display screen cover plate is evenly wiped once in the vertical direction through the dust-free cloth, and standing is conducted at the room temperature; and removing redundant AF on the surface. The method is good in repairing effect, easy to operate, low in cost and free of secondary damage to products.

Description

Technical Field

[0001] The present invention relates to the field of repairing anti-fingerprint coatings on display screen cover plates, and in particular to a method for repairing anti-fingerprint coatings on display screen cover plates. Background Art

[0002] With the rapid development of consumer electronics, substrates such as glass, sapphire, and resin are widely used in the manufacture of display cover panels due to their excellent light transmittance and durability. To enhance the user experience, anti-fingerprint coatings (AF coatings) are widely used on the surfaces of mobile phones, computers, tablets, and in-vehicle displays. This enhances the smoothness of the display, reduces the adhesion of fingerprints and oil stains, and maintains the clarity and aesthetics of the display.

[0003] However, during the actual production and assembly of display screens, due to reasons such as workmanship, human operation, transportation, tooling, etc., some products may have poor AF coating, such as local scratches and low water drop angles. If these defective products are directly scrapped, it will increase the cost of the manufacturer. During the long-term use of touch products by users, the surface AF coating will face problems such as scratches from sharp objects, finger touch, fabric friction, corrosion from sweat or chemical reagents, and light aging, resulting in local damage, performance degradation or overall failure of the AF coating on the screen surface, and even inconsistent gloss and discoloration, which greatly affects the overall aesthetics of the product and the user experience.

[0004] Existing AF coating repair methods have numerous drawbacks. They require stripping the original AF coating before applying AF coating via spraying or PVD deposition. This can lead to secondary damage, unsatisfactory repair results, a complex and inefficient repair process, and high costs. These issues limit the widespread adoption of AF coating repair technology, forcing consumers to replace the entire display screen when the AF coating is damaged, increasing both cost and time.

[0005] Therefore, the industry urgently needs an AF coating repair method with good repair effect, simple operation, low cost, and no secondary damage to the product, so as to solve the problems existing in the existing technology and improve the product's service life and user satisfaction. Summary of the Invention

[0006] In order to solve the problems of local damage, overall performance degradation or failure of the anti-fingerprint coating on the surface of the display cover, a AF coating repair method is provided, which has good repair effect, simple operation, low cost and will not cause secondary damage to the product.

[0007] The purpose of the present invention is to provide an AF coating repair method with good repair effect, simple operation, low cost and no secondary damage to the product, in order to solve the problem of local damage, overall performance degradation or failure of the anti-fingerprint coating on the surface of the display cover.

[0008] To achieve the above object, the present invention provides a method for repairing an anti-fingerprint coating on a display cover surface, which is characterized by comprising the following steps:

[0009] S1. Preparation of AF repair solution; adding the AF main agent to the AF diluent, mixing evenly and then standing to allow the AF main agent to be evenly dispersed to obtain the AF repair solution; the siloxane ends of the active ingredient perfluoropolyether siloxane in the AF main agent have been pre-hydrolyzed into silanol groups;

[0010] S2. Clean the surface of the product to be repaired: Use a dust-free cloth dipped in anhydrous ethanol to wipe the entire surface of the display cover. After drying with a hair dryer, wipe the entire surface of the display cover with a dust-free cloth dipped in AF thinner again. After drying with a hair dryer, wipe off any residual fingerprints, sweat, and other dirt on the surface of the screen cover.

[0011] Steps S1 and S2 can also be switched in order or performed simultaneously;

[0012] S3. AF liquid spray repair: Evenly spray the AF repair liquid obtained in S1 onto the surface of the screen cover treated in S2. Allow the AF repair liquid to flow for 3-5 seconds, then wipe the screen cover evenly along the horizontal direction with a dust-free cloth. Repeat the spraying and leveling steps in the same way, then wipe the screen cover evenly along the vertical direction with a dust-free cloth. Then, let the screen stand at room temperature for 0.5-2 hours.

[0013] S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe the screen cover after step S3 to remove excess AF on the surface.

[0014] Furthermore, in the step S1, the weight ratio of the active ingredient in the AF main agent is 20%.

[0015] Furthermore, in the step S1, the weight ratio of the AF main agent to the AF diluent is 1:500-1:100.

[0016] Furthermore, in the step S1, the AF main agent is A510Z from Shenzhen Yicheng New Materials Co., Ltd.

[0017] Furthermore, in the step S2, the display screen cover is a high-aluminum, microcrystalline, or high-aluminum + AR glass cover with an AF coating whose water contact angle is attenuated to a range of 60-70° before being wiped with anhydrous ethanol.

[0018] Furthermore, the anti-fingerprint coating repair method is applied to the repair of anti-fingerprint coatings on glass, sapphire, and resin substrate cover plates, display screen modules, as well as mobile phones, Pads, computer screens, car displays, and terminal product surfaces.

[0019] Furthermore, the repair method is also applicable to repairing AF coatings on product surfaces that have local damage, performance degradation, or overall failure.

[0020] The beneficial effects of the present invention are:

[0021] 1. In the technical solution provided by the present invention, the siloxane ends in the active ingredient perfluoropolyether siloxane in the AF main agent have been hydrolyzed into silanol groups in advance. After coating, they can quickly undergo dehydration condensation reaction with the hydroxyl groups on the surface of the substrate to form chemical bonds, and can achieve excellent wear resistance without baking.

[0022] 2. It can repair the AF coating on the surface of products with local damage, performance degradation or overall failure, and has a wide range of applications.

[0023] 3. There is no need to strip the original AF, and the repair process does not require heating. The operation is simple and will not cause secondary damage to the product. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below. The examples of the embodiments are intended to explain the present invention and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they are performed according to the techniques or conditions described in the literature in this area or according to the product specifications. Reagents or instruments used that do not specify the manufacturer are all conventional products that can be obtained commercially.

[0025] In order to simulate the repair effect of AF coating, high-aluminum, microcrystalline, and high-aluminum + AR glass cover plates with the water contact angle of the AF film layer attenuated to the range of 60-110° were used for verification.

[0026] Comparative Example 1:

[0027] The high-aluminum, microcrystalline, and high-aluminum + AR glass cover plates were treated with Yicheng E510 AF solution (main agent: diluent = 1:250) according to the conventional AF spraying process: glass cover plate cleaning → Plasma treatment → AF spraying (45g / ㎡) → baking (150℃ / 30min) → cooling and standing at room temperature for 2h → cleaning.

[0028] Example 1:

[0029] S1. Preparation of AF repair solution: Add the AF base to the container containing the AF diluent in a weight ratio of 1:500. Cover the container and shake it for 1-2 minutes. Let it stand for 10-20 minutes to evenly disperse the AF base. The AF repair solution is ready for use.

[0030] Repackaging of the liquid: Pour the AF repair liquid into a commercially available push-type spray bottle and set aside.

[0031] S2. Clean the surface of the glass cover to be repaired: Use high-aluminum, microcrystalline, or high-aluminum + AR glass cover with an AF coating water contact angle attenuated to 60-70°. Dip a dust-free cloth in anhydrous ethanol and wipe the entire surface of the glass cover. After drying it with a hair dryer, use a dust-free cloth dipped in AF thinner to wipe the entire surface of the screen cover and blow it dry with a hair dryer to wipe off residual fingerprints, sweat, and other dirt on the surface of the screen cover.

[0032] Steps S1 and S2 can also be switched in order or performed simultaneously;

[0033] S3. AF liquid spray repair: After evenly spraying the AF liquid in the push-type spray bottle on the surface of the screen cover, let the AF liquid flow for 3-5 seconds, and wipe it evenly along the horizontal direction of the screen cover with a dust-free cloth; then repeat the above spraying and leveling actions in the same way, and then wipe it evenly along the vertical direction of the screen cover with a dust-free cloth, and then let the glass cover stand at room temperature for about 1 hour.

[0034] S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe and remove excess AF on the surface of the screen cover.

[0035] Example 2:

[0036] S1. Preparation of AF repair solution: Add the AF base to the container containing the AF diluent in a weight ratio of 1:250. Cover the container and shake it for 1-2 minutes. Let it stand for 10-20 minutes to evenly disperse the AF base. The AF repair solution is ready for use.

[0037] Repackaging of the liquid: Pour the AF repair liquid into a commercially available push-type spray bottle and set aside.

[0038] S2. Clean the surface of the glass cover to be repaired: Use high-aluminum, microcrystalline, or high-aluminum + AR glass cover with an AF coating water contact angle attenuated to 60-70°. Dip a dust-free cloth in anhydrous ethanol and wipe the entire surface of the glass cover. After drying it with a hair dryer, use a dust-free cloth dipped in AF thinner to wipe the entire surface of the screen cover and blow it dry with a hair dryer to wipe off residual fingerprints, sweat, and other dirt on the surface of the screen cover.

[0039] Steps S1 and S2 can also be switched in order or performed simultaneously;

[0040] S3. AF liquid spray repair: After evenly spraying the AF liquid in the push-type spray bottle on the surface of the screen cover, let the AF liquid flow for 3 to 5 seconds, and wipe it evenly along the horizontal direction of the screen cover with a dust-free cloth; then repeat the above spraying and leveling actions in the same way, and then wipe it evenly along the vertical direction of the screen cover with a dust-free cloth, and then let the glass cover stand at room temperature for about 1 hour.

[0041] S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe and remove excess AF on the surface of the screen cover.

[0042] Example 3:

[0043] S1. Preparation of AF repair solution: Add the AF base to the container containing the AF diluent in a weight ratio of 1:100. Cover the container and shake it for 1-2 minutes. Let it stand for 10-20 minutes to evenly disperse the AF base. The AF repair solution is ready for use.

[0044] Repackaging of the liquid: Pour the AF repair liquid into a commercially available push-type spray bottle and set aside.

[0045] S2. Clean the surface of the glass cover to be repaired: Use high-aluminum, microcrystalline, or high-aluminum + AR glass cover with an AF coating water contact angle attenuated to 60-70°. Dip a dust-free cloth in anhydrous ethanol and wipe the entire surface of the glass cover. After drying it with a hair dryer, use a dust-free cloth dipped in AF thinner to wipe the entire surface of the screen cover and blow it dry with a hair dryer to wipe off residual fingerprints, sweat, and other dirt on the surface of the screen cover.

[0046] Steps S1 and S2 can also be switched in order or performed simultaneously;

[0047] S3. AF liquid spray repair: After evenly spraying the AF liquid in the push-type spray bottle on the surface of the screen cover, let the AF liquid flow for 3 to 5 seconds, and wipe it evenly along the horizontal direction of the screen cover with a dust-free cloth; then repeat the above spraying and leveling actions in the same way, and then wipe it evenly along the vertical direction of the screen cover with a dust-free cloth, and then let the glass cover stand at room temperature for about 1 hour.

[0048] S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe and remove excess AF on the surface of the screen cover.

[0049] Example 4:

[0050] S1. Preparation of AF repair solution: Add the AF base to the container containing the AF diluent in a weight ratio of 1:250. Cover the container and shake it for 1-2 minutes. Let it stand for 10-20 minutes to evenly disperse the AF base. The AF repair solution is ready for use.

[0051] Repackaging of the liquid: Pour the AF repair liquid into a commercially available push-type spray bottle and set aside.

[0052] S2. Clean the surface of the glass cover to be repaired: Use high-aluminum, microcrystalline, or high-aluminum + AR glass cover with an AF coating water contact angle attenuated to the range of 90-100°. Dip a dust-free cloth in anhydrous ethanol and wipe the entire surface of the glass cover. After drying it with a hair dryer, use a dust-free cloth dipped in AF thinner to wipe the entire surface of the screen cover and blow it dry with a hair dryer to wipe off residual fingerprints, sweat, and other dirt on the surface of the screen cover.

[0053] Steps S1 and S2 can also be switched in order or performed simultaneously;

[0054] S3. AF liquid spray repair: After evenly spraying the AF liquid in the push-type spray bottle on the surface of the screen cover, let the AF liquid flow for 3 to 5 seconds, and wipe it evenly along the horizontal direction of the screen cover with a dust-free cloth; then repeat the above spraying and leveling actions in the same way, and then wipe it evenly along the vertical direction of the screen cover with a dust-free cloth, and then let the glass cover stand at room temperature for about 1 hour.

[0055] S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe and remove excess AF on the surface of the screen cover.

[0056] Example 5:

[0057] S1. Preparation of AF repair solution: Add the AF base to the container containing the AF diluent in a weight ratio of 1:250. Cover the container and shake it for 1-2 minutes. Let it stand for 10-20 minutes to evenly disperse the AF base. The AF repair solution is ready for use.

[0058] Repackaging of the liquid: Pour the AF repair liquid into a commercially available push-type spray bottle and set aside.

[0059] S2. Clean the surface of the glass cover to be repaired: Use high-aluminum, microcrystalline, or high-aluminum + AR glass cover with an AF coating water contact angle attenuated to the range of 100-110°. Dip a dust-free cloth in anhydrous ethanol and wipe the entire surface of the glass cover. After drying it with a hair dryer, use a dust-free cloth dipped in AF thinner to wipe the entire surface of the screen cover and blow it dry with a hair dryer to wipe off residual fingerprints, sweat, and other dirt on the surface of the screen cover.

[0060] Steps S1 and S2 can also be switched in order or performed simultaneously;

[0061] S3. AF liquid spray repair: After evenly spraying the AF liquid in the push-type spray bottle on the surface of the screen cover, let the AF liquid flow for 3 to 5 seconds, and wipe it evenly along the horizontal direction of the screen cover with a dust-free cloth; then repeat the above spraying and leveling actions in the same way, and then wipe it evenly along the vertical direction of the screen cover with a dust-free cloth, and then let the glass cover stand at room temperature for about 1 hour.

[0062] S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe and remove excess AF on the surface of the screen cover.

[0063] The test results of Examples 1-5 and the comparative example are shown in Table 1.

[0064] Table 1 Test results of Examples 1-5 and Comparative Examples

[0065]

[0066] As can be seen from Table 1, there is no significant difference in the performance of the AF coating after repair by the repair methods of Examples 1-5 and the performance of the AF coating treated by the conventional AF spraying process in Comparative Example 1. However, the method of the present invention is simpler and less costly, and does not cause secondary damage to the product. It can be used to repair anti-fingerprint coatings on glass, sapphire, resin and other substrate cover plates, display modules, as well as mobile phones, Pads and computer screens, car displays and other terminal product surfaces.

[0067] In summary, the present invention provides a method for repairing the anti-fingerprint coating on the surface of a display cover plate, which has the advantages of good repair effect, simple operation, low cost, and no secondary damage to the product. The performance of the repaired AF coating is no significantly different from that of a normal AF coating. The method can be used to repair the anti-fingerprint coating on cover plates of substrates such as glass, sapphire, and resin, display modules, as well as mobile phones, pads, computer screens, car displays, and other terminal products.

[0068] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A method for repairing an anti-fingerprint coating on a display cover surface, characterized in that: The following steps are involved: S1. Preparation of AF repair solution: Add the AF main agent to the AF diluent, mix evenly, and then let it stand to evenly disperse the AF main agent to obtain the AF repair solution; the siloxane ends of the active ingredient perfluoropolyether siloxane in the AF main agent have been pre-hydrolyzed into silanol groups; S2. Clean the surface of the product to be repaired: Use a dust-free cloth dipped in anhydrous ethanol to wipe the entire surface of the display cover. After drying with a hair dryer, wipe the entire surface of the display cover with a dust-free cloth dipped in AF thinner again. After drying with a hair dryer, wipe off any residual fingerprints, sweat, and other dirt on the surface of the screen cover. Steps S1 and S2 can also be switched in order or performed simultaneously; S3. AF liquid spray repair: Evenly spray the AF repair liquid obtained in S1 onto the surface of the screen cover treated in S2. Allow the AF repair liquid to flow for 3-5 seconds, then wipe the screen cover evenly along the horizontal direction with a dust-free cloth. Repeat the spraying and leveling steps in the same way, then wipe the screen cover evenly along the vertical direction with a dust-free cloth. Then, let the screen stand at room temperature for 0.5-2 hours. S4. Cleaning: Use a dust-free cloth dipped in anhydrous ethanol or AF thinner to wipe the screen cover after step S3 to remove excess AF on the surface.

2. The method for repairing the anti-fingerprint coating on the surface of a display screen cover according to claim 1, wherein: In the step S1, the weight ratio of the active ingredient in the AF main agent is 20%.

3. The method for repairing the anti-fingerprint coating on the surface of a display screen cover according to claim 1, wherein: In the step S1, the weight ratio of the AF main agent to the AF diluent is 1:500-1:

100.

4. The method for repairing the anti-fingerprint coating on the surface of a display screen cover according to claim 1, wherein: In the step S1, the AF main agent is A510Z produced by Shenzhen Yicheng New Materials Co., Ltd.

5. The method for repairing the anti-fingerprint coating on the surface of a display screen cover according to claim 1, wherein: In the step S2, before being wiped with anhydrous ethanol, the display screen cover is a high-aluminum, microcrystalline, or high-aluminum+AR glass cover with an AF coating whose water contact angle is attenuated to a range of 60-70°.

6. The method for repairing the anti-fingerprint coating on the surface of a display screen cover according to claim 1, wherein: The anti-fingerprint coating repair method is applied to the repair of anti-fingerprint coatings on glass, sapphire, and resin substrate cover plates, display screen modules, as well as mobile phones, pads, computer screens, car displays, and the surfaces of terminal products.

7. The method for repairing the anti-fingerprint coating on the surface of a display screen cover according to claim 1, wherein: The repair method is also applicable to repairing AF coatings on product surfaces that have local damage, performance degradation, or overall failure.

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