A structure-stable coated cover plate and a display module thereof

Abstract

This utility model relates to a structurally robust coated cover plate and its display module, comprising: a chromium boride layer, a chromium carbide layer, and a cobalt-chromium-tungsten alloy layer coated on the upper surface of the glass cover plate; a thermochromic ink layer screen-printed on the lower surface of the glass cover plate; a niobium nitride layer and a tantalum carbide layer coated on the thermochromic ink layer; grooves and multiple through holes provided around the glass cover plate; a protrusion and a buckle provided at one end of the housing; the protrusion cooperating with the groove of the glass cover plate to limit the glass cover plate; and the buckle passing through the through holes to connect the glass cover plate to the housing. The assembly is simple, the structure is robust, and repair and maintenance are convenient. The cobalt-chromium-tungsten alloy, chromium carbide, and chromium boride layers together provide excellent wear resistance, effectively protecting the surface of the glass cover plate from scratches. A thermochromic ink layer is screen-printed on the frame area on the back of the glass cover plate, and niobium nitride and tantalum carbide are coated below the ink area to prevent damage to the ink layer and extend its service life.

Description

Technical Field

[0001] This utility model relates to the field of display screen manufacturing technology, and in particular to a structurally stable coated cover plate and its display module. Background Technology

[0002] With the rapid development of consumer electronics, the performance requirements for display covers in fields such as smartphones, tablets, and automotive displays are increasing. Glass covers are widely used due to their excellent light transmittance, texture, and wear resistance. Traditionally, the fixation between glass covers and metal or plastic housings mainly relies on double-sided tape. While this method is widely used, it has several inherent drawbacks: complex assembly process: precise cutting and pasting of double-sided tape is required, demanding high levels of operator skill and a clean production environment, increasing assembly steps and time costs; stability depends on adhesive: the connection strength depends entirely on the performance of the adhesive. After long-term use, the adhesive may lose its adhesion due to aging, high temperature and humidity environments, chemical corrosion, etc., posing a risk of cover loosening or even falling off. Reliability is relatively low, especially under impact or vibration; adhesive overflow and appearance issues: adhesive may overflow during pressure application (overflow), contaminating the edges of the cover or the surface of the housing, affecting the product's appearance and quality. Meanwhile, the presence of the adhesive layer itself may also create undesirable gaps or shadows visually; difficult to repair: once the adhesive is applied, it will be extremely difficult to remove the cover for repair or replacement, which may easily cause damage to the cover or the casing, resulting in poor repairability; cost factors: high-quality special double-sided tape is expensive, and its application process also consumes labor costs.

[0003] Therefore, the industry urgently needs a solution for fixing glass covers and housings that can simplify assembly processes, improve connection stability and reliability, enhance appearance, facilitate repair and maintenance, and eliminate the need for double-sided tape. Summary of the Invention

[0004] This utility model discloses a structurally stable coated cover plate and display module, aiming to solve the technical problems existing in the prior art.

[0005] The present invention adopts the following technical solution:

[0006] On one hand, this utility model provides a structurally stable coated cover plate, a glass cover plate, wherein the glass cover plate has grooves and multiple through holes around its perimeter; a chromium boride layer, which is disposed on the front side of the glass cover plate to enhance its resistance to high temperatures and corrosion; a chromium carbide layer, which is disposed on the chromium boride layer to enhance the scratch resistance of the glass cover plate; a cobalt-chromium-tungsten alloy layer, which is disposed on the chromium carbide layer to enhance the scratch resistance and wear resistance of the front side of the glass cover plate; and a thermochromic ink layer. A thermochromic ink layer is disposed on the back of the glass cover plate; a niobium nitride layer is disposed on the thermochromic ink layer, and the niobium nitride layer is used to enhance the wear resistance of the thermochromic ink layer; a tantalum carbide layer is disposed on the niobium nitride layer, and the tantalum carbide layer is used to enhance the wear resistance of the thermochromic ink layer; a housing is provided at one end of the housing, the protrusion and the buckle are provided, the protrusion cooperates with the groove of the glass cover plate to limit the glass cover plate, and the buckle passes through the through hole to connect the glass cover plate to the housing.

[0007] In some preferred embodiments, the thickness of the chromium boride layer is between 30 nanometers and 50 nanometers.

[0008] In some preferred embodiments, the thickness of the chromium carbide layer is between 15 nanometers and 25 nanometers.

[0009] In some preferred embodiments, the thickness of the cobalt-chromium-tungsten alloy layer is between 30 nanometers and 50 nanometers.

[0010] In some preferred embodiments, the thickness of the thermochromic ink layer is between 8 micrometers and 12 micrometers.

[0011] In some preferred embodiments, the thickness of the niobium nitride layer is between 10 nanometers and 20 nanometers.

[0012] In some preferred embodiments, the thickness of the tantalum carbide layer is between 20 nanometers and 30 nanometers.

[0013] Secondly, this utility model provides a display module, which includes the aforementioned coated cover plate.

[0014] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0015] This utility model mainly provides a structurally stable coated cover plate and display module. The coated cover plate includes: a glass cover plate with grooves and multiple through holes around its perimeter; a chromium boride layer disposed on the front side of the glass cover plate to enhance its high-temperature resistance and corrosion resistance; a chromium carbide layer disposed on top of the chromium boride layer to enhance its scratch resistance; a cobalt-chromium-tungsten alloy layer disposed on top of the chromium carbide layer to enhance the scratch resistance and wear resistance of the front side of the glass cover plate; a thermochromic ink layer disposed on the back side of the glass cover plate; and a niobium nitride layer disposed on top of the thermochromic ink layer. The first layer enhances the wear resistance of the thermochromic ink layer; the second layer, tantalum carbide, is placed on top of the niobium nitride layer and further enhances the wear resistance of the thermochromic ink layer. The housing has a buckle with a protrusion and a buckle at one end. The protrusion engages with the groove of the glass cover to limit its position. The buckle passes through the through hole to connect the glass cover to the housing. Assembly is simple, facilitating repair and maintenance. The structure is robust, and the use of cobalt-chromium-tungsten alloy, chromium carbide, and chromium boride layers provides excellent wear resistance, effectively protecting the glass cover surface from scratches. The thermochromic ink layer is screen-printed on the frame area on the back of the glass cover. Niobium nitride and tantalum carbide are plated below the ink area to prevent damage to the ink layer and extend its service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below, forming part of this utility model. The illustrative embodiments of this utility model and their descriptions explain this utility model and do not constitute an improper limitation of this utility model. In the accompanying drawings:

[0017] Figure 1 A front view of a glass cover plate provided in an embodiment of the present utility model;

[0018] Figure 2 A side view of a coated cover plate provided in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the coated cover plate and the housing provided in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the casing provided in one embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 101. Glass cover plate; 1011. Groove; 1012. Through hole; 102. Chromium boride layer; 103. Chromium carbide layer; 104. Cobalt-chromium-tungsten alloy layer; 105. Thermochromic ink layer; 106. Niobium nitride layer; 107. Tantalum carbide layer; 108. Housing; 1081. Buckle; 1082. Protrusion. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. In the description of this utility model, it should be noted that the term "or" is generally used to include the meaning of "and / or," unless otherwise expressly stated otherwise.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a magnetic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this application, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0025] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] With the rapid development of consumer electronics, traditional glass covers, while meeting basic protection needs, have limitations in terms of wear resistance, scratch resistance, corrosion resistance, and visual appeal. Especially in high-end markets such as smartphones, tablets, and automotive displays, users not only expect products to have superior durability but also seek unique aesthetic experiences and interactive functions.

[0027] To address the problems existing in the prior art, this application / utility model provides a structurally stable coated cover plate and display module. Figure 1 A front view of a glass cover plate provided in an embodiment of the present utility model; Figure 2 A side view of a coated cover plate provided in an embodiment of the present utility model; Figure 3This is a schematic diagram of the connection structure between the coated cover plate and the housing provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the casing provided in one embodiment of the present invention. Figure 1-4 As shown, the coated cover plate includes: a glass cover plate 101, with grooves 1011 and multiple through holes 1012 around its perimeter; a chromium boride layer 102, disposed on the front side of the glass cover plate 101, possessing thermal stability and corrosion resistance, used to enhance the high-temperature resistance and corrosion resistance of the front side of the glass cover plate 101; a chromium carbide layer 103, disposed on the chromium boride layer 102, possessing high hardness and wear resistance, used to enhance the scratch resistance of the glass cover plate 101; and a cobalt-chromium-tungsten alloy layer 104, disposed on the chromium carbide layer 103, possessing high hardness and wear resistance, used to enhance the scratch resistance and wear resistance of the glass cover plate 101. Wear resistance; thermochromic ink layer 105, which is disposed on the back of glass cover plate 101; niobium nitride layer 106, which is disposed on the thermochromic ink layer 105 and enhances the wear resistance of the thermochromic ink layer 105; tantalum carbide layer 107, which is disposed on the niobium nitride layer 106 and enhances the wear resistance of the thermochromic ink layer 105; housing 108, one end of housing 108 is provided with protrusion 1082 and buckle 1081, protrusion 1082 cooperates with groove 1011 on glass cover plate 101 to limit the glass cover plate 101, and buckle 1081 passes through through hole 1012 to connect glass cover plate 101 to housing 108.

[0028] Preferably, a chromium boride layer 102, a chromium carbide layer 103, and a cobalt-chromium-tungsten alloy layer 104 are sequentially plated on the front side of the glass cover 101. Utilizing the high hardness and high wear resistance of these three materials, the cobalt-chromium-tungsten alloy, chromium carbide, and chromium boride layers together provide excellent wear resistance, effectively protecting the surface of the glass cover from scratches and maintaining good performance even in harsh environments. The niobium nitride layer 106 and the tantalum carbide layer 107 serve as inner protective layers, effectively preventing scratches on the thermochromic ink layer 105, while also providing additional chemical and thermal stability, jointly extending the service life of the glass cover 101.

[0029] Preferably, the glass cover 101 is connected to the housing by the groove 1011 on the glass cover 101 engaging with the protrusion 1082 on the housing 108, and by the buckle 1081 on the housing 108 passing through the through hole 1012 on the glass cover 101. This method is simple to assemble, has a stable structure, is easy to repair and maintain, and can also save the use of double-sided foam.

[0030] In some preferred embodiments, the thickness of the chromium boride layer 102 is between 30 nanometers and 50 nanometers.

[0031] Preferably, chromium boride is an inorganic compound that is silvery-white or gray crystalline powder. Chromium boride not only has high hardness, but also good thermal stability and corrosion resistance. It can effectively resist the effects of high temperature and corrosive environment on the cover plate and protect the underlying structure. Therefore, a 30-50 nanometer thick chromium boride layer 102 is deposited on the glass cover plate 101, which can maintain good scratch resistance and wear resistance even in harsh environments.

[0032] In some preferred embodiments, the thickness of the chromium carbide layer 103 is between 15 nanometers and 25 nanometers.

[0033] Preferably, chromium carbide is a gray powder with a metallic luster, and its micro Vickers hardness (50g load) is 2700 kg / mm. 2 Chromium carbide is a high-melting-point inorganic material that performs well in high-temperature environments. Therefore, depositing a 15-25 nanometer layer of chromium carbide 103 on the boronized chromium layer 102 can further enhance the scratch resistance of the glass cover 101 and form a synergistic effect with the cobalt-chromium-tungsten alloy layer 104 to improve the overall performance.

[0034] In some preferred embodiments, the thickness of the cobalt-chromium-tungsten alloy layer 104 is between 30 nanometers and 50 nanometers.

[0035] Preferably, copper-chromium-zirconium alloy is known for its high hardness, high strength and excellent wear resistance. It has excellent high-temperature performance and can maintain high strength and hardness at high temperatures. It also shows better resistance to hot corrosion than other high-temperature alloys above 1000℃. Therefore, depositing a 30-50 nanometer thick cobalt-chromium-tungsten alloy layer 104 on the chromium carbide layer 103 can effectively improve the scratch resistance and wear resistance of the glass cover plate 101 surface, while also having good chemical stability and corrosion resistance.

[0036] In some preferred embodiments, the thickness of the thermochromic ink layer 105 is between 8 micrometers and 12 micrometers.

[0037] Preferably, thermochromic inks can change color according to temperature changes, increasing the fun and interactivity of products. Through screen printing, a variety of patterns and colors can be designed to enhance the aesthetics of products.

[0038] In some preferred embodiments, the thickness of the niobium nitride layer 106 is between 10 nanometers and 20 nanometers.

[0039] Preferably, niobium nitride is a material with high hardness and high wear resistance, high thermal and chemical stability, and resistance to neutron radiation. It can effectively prevent the ink layer from being scratched. Therefore, depositing a 10-20 nanometer thick niobium nitride layer 106 can not only protect the thermochromic ink layer 105 from environmental influences, but also extend the service life of the thermochromic ink layer 105.

[0040] In some preferred embodiments, the thickness of the tantalum carbide layer 107 is between 20 nanometers and 30 nanometers.

[0041] Preferably, tantalum carbide is a light brown metallic cubic crystalline powder with a high melting point (3880℃), high hardness (Mohs hardness 9, close to diamond) and excellent chemical stability. Therefore, depositing a tantalum carbide layer on the niobium nitride layer 106 can effectively prevent the thermochromic ink layer 105 from being scratched and extend the service life of the thermochromic ink layer 6.

[0042] Secondly, this utility model provides a display module, which includes the aforementioned coated cover plate.

[0043] This utility model achieves a comprehensive improvement in the performance of the glass cover 101 by combining materials with different properties. First, a layer of chromium boride 102, a layer of chromium carbide 103, and a layer of cobalt-chromium-tungsten alloy 104 are sequentially plated on the front side of the glass cover 101. The outermost layer of the front side of the glass cover 101 is the cobalt-chromium-tungsten alloy layer 104, which significantly improves the scratch resistance of the surface of the glass cover 101 with its high hardness, high strength, and wear resistance. Then comes the chromium carbide layer 103, which further enhances the wear resistance and works synergistically with the cobalt-chromium-tungsten alloy layer 104. The chromium boride layer 102 serves as the bottom layer, providing excellent thermal stability and corrosion resistance, and protecting the underlying structure. On the back edge area of ​​the glass cover 101, thermochromic ink is used for screen printing, giving the product a unique sense of fun and interactivity. At the same time, the screen printing process is flexible and versatile, allowing for the customization of diverse patterns and enhancing the product's aesthetics. To prevent damage to the thermochromic ink layer 105, a niobium nitride layer 106 and a tantalum carbide layer 107 are sequentially deposited below the thermochromic ink layer 105. These two materials not only have high hardness and high wear resistance, but also effectively prevent the thermochromic ink layer 105 from being scratched, and provide chemical and thermal stability protection, ensuring the long-term stability and durability of the entire coating structure. This multi-layer coating structure design realizes a comprehensive upgrade of the glass cover 101 and meets the high-performance requirements of high-end electronic products for the glass cover 101.

[0044] Then, when the glass cover 101 is connected to the housing 108, the glass cover 101 is connected to the housing by the engagement of the groove 1011 on the glass cover 101 with the protrusion 1082 on the housing 108, and by the buckle 1081 on the housing 108 passing through the through hole 1012 on the glass cover 101. This structure is stable, convenient and simple, and can also save double-sided foam. It further improves the stability of the coating structure and has a simple structure.

[0045] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A structurally robust coated cover plate, characterized in that, include: A glass cover plate, wherein the glass cover plate has grooves and multiple through holes around its perimeter; A chromium boride layer is disposed on the front side of the glass cover to enhance the glass cover's resistance to high temperatures and corrosion. A chromium carbide layer, wherein the chromium carbide layer is disposed on the chromium boride layer, is used to enhance the scratch resistance of the glass cover. A cobalt-chromium-tungsten alloy layer is disposed on the chromium carbide layer to enhance the scratch resistance and wear resistance of the glass cover. A thermochromic ink layer is disposed on the back of the glass cover plate; A niobium nitride layer is disposed on the thermochromic ink layer, and the niobium nitride layer is used to enhance the wear resistance of the thermochromic ink layer; A tantalum carbide layer is disposed on the niobium nitride layer, and the tantalum carbide layer is used to enhance the wear resistance of the thermochromic ink layer; The housing has a protrusion and a buckle at one end. The protrusion engages with the groove of the glass cover to limit the glass cover. The buckle passes through the through hole to connect the glass cover to the housing.

2. The coated cover plate according to claim 1, characterized in that, The thickness of the chromium boride layer is between 30 nanometers and 50 nanometers.

3. The coated cover plate according to claim 1, characterized in that, The thickness of the chromium carbide layer is between 15 nanometers and 25 nanometers.

4. The coated cover plate according to claim 1, characterized in that, The thickness of the cobalt-chromium-tungsten alloy layer is between 30 nanometers and 50 nanometers.

5. The coated cover plate according to claim 1, characterized in that, The thickness of the thermochromic ink layer is between 8 micrometers and 12 micrometers.

6. The coated cover plate according to claim 1, characterized in that, The thickness of the niobium nitride layer is between 10 nanometers and 20 nanometers.

7. The coated cover plate according to claim 1, characterized in that, The thickness of the tantalum carbide layer is between 20 nanometers and 30 nanometers.

8. A display module, characterized in that, The display module includes the coated cover plate as described in any one of claims 1-7.

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