Cover plate structure capable of increasing surface hardness

Abstract

The utility model discloses a cover plate structure for increasing surface hardness, which comprises a cover plate body, a backlight module is arranged on one side of the cover plate body, a coating layer for increasing the surface hardness is arranged on the surface of the cover plate body, and the coating layer comprises a first film layer, a second film layer and a third film layer which are sequentially stacked from top to bottom. The cover plate structure has the effects of increasing the surface hardness and enabling the cover plate body to prevent blue light and glare.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a cover plate structure with increased surface hardness. Background Art

[0002] Liquid crystal display devices have been widely used in various information, communication and consumer electronic products due to their advantages of light weight, small size and low power consumption. The liquid crystal display module is the core display device in the liquid crystal display device, and the liquid crystal display module is mainly composed of a cover plate, a liquid crystal display screen and a backlight module.

[0003] The cover plate in the prior art is an ordinary glass cover plate, which is located at the top layer of the electronic device in daily use and is exposed to the outside and easily scratched. However, the hardness of the glass cover plate is not high enough and it is easily scratched in daily use, thereby affecting the service life of the cover plate. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a cover plate structure with increased surface hardness.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A cover plate structure for increasing surface hardness comprises: a cover plate body, a backlight module is arranged on one side of the cover plate body, a coating layer for increasing surface hardness is arranged on the surface of the cover plate body, and the coating layer comprises a first film layer, a second film layer and a third film layer stacked in sequence from top to bottom.

[0007] In one embodiment, the material of the first film layer is titanium oxide, and the material of the second film layer is silicon oxide.

[0008] In one embodiment, the thickness of the first film layer is 20 nm, the thickness of the second film layer is 40 nm, and the thickness of the third film layer is 60 nm.

[0009] In one embodiment, the coating layer has two layers, and the two coating layers are sequentially stacked on the surface of the cover plate body.

[0010] In one embodiment, a first layer of semi-transparent white ink is screen-printed on the lower surface of the cover body, the first layer of semi-transparent white ink covers the entire lower surface of the cover body, and the transmittance of the first layer of semi-transparent white ink is 60%.

[0011] In one embodiment, a second layer of semi-transparent white ink is disposed below the first layer of semi-transparent white ink, and the transmittance of the second layer of semi-transparent white ink is 60%.

[0012] In one embodiment, a third layer of semi-transparent white ink is disposed below the second layer of semi-transparent white ink, and the transmittance of the third layer of semi-transparent white ink is 60%.

[0013] In one embodiment, the thickness of the first layer of semi-transparent white ink, the second layer of semi-transparent white ink, and the third layer of semi-transparent white ink are all 7 um.

[0014] In one embodiment, the first layer of semi-transparent white ink, the second layer of semi-transparent white ink and the third layer of semi-transparent white ink are sequentially screen-printed on the lower surface of the cover body, and the first layer of semi-transparent white ink, the second layer of semi-transparent white ink and the third layer of semi-transparent white ink are arranged in a stepped manner.

[0015] In one embodiment, a first foam double-sided adhesive and a second foam double-sided adhesive are provided between the cover body and the backlight module for bonding and fixing. The first foam double-sided adhesive is located between the third layer of semi-transparent white ink and the backlight module, and the second foam double-sided adhesive is located between the first layer of semi-transparent white ink and the backlight module. The thickness of the second foam double-sided adhesive is 7um greater than that of the first foam double-sided adhesive.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] 1. The utility model provides a cover plate structure with increased surface hardness by arranging two coating layers stacked sequentially on the surface of the cover plate body to increase the surface hardness of the cover plate body and make the cover plate body have the effect of anti-blue light and anti-glare. When external light enters the cover plate body, the cover plate body can reflect a part of the blue light, making it more comfortable for human eyes to watch, and the surface hardness of the cover plate body is enhanced to avoid being scratched;

[0018] 2. The utility model provides a cover plate structure for increasing the surface hardness by arranging a first layer of semi-transparent white ink, a second layer of semi-transparent white ink and a third layer of semi-transparent white ink in a stepped distribution, so that after the light of the backlight module shines into the backlight module, the cover plate body presents a step-by-step gradient ink effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0020] Figure 1 The utility model is a schematic structural diagram of a cover plate structure with increased surface hardness.

[0021] Description of the drawings: 10, cover body; 20, backlight module; 30, coating layer; 31, first film layer; 32, second film layer; 33, third film layer; 40, first layer of semi-transparent white ink; 50, second layer of semi-transparent white ink; 60, third layer of semi-transparent white ink; 70, first foam double-sided adhesive; 80, second foam double-sided adhesive. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0023] A cover plate structure with increased surface hardness, referring to Figure 1 , including a cover body 10. The cover body 10 is a glass cover, the thickness of the cover body 10 is 1-3 mm, a backlight module 20 is arranged on one side of the cover body 10, and the cover body 10 provides hardness support for the backlight module 20.

[0024] Reference Figure 1 The surface of the cover body 10 is provided with a coating layer 30, and the coating layer 30 has two layers, and the two coating layers 30 are sequentially stacked on the surface of the cover body 10. The coating layer 30 is composed of three layers, and the coating layer 30 includes a first film layer 31, a second film layer 32, and a third film layer 33 stacked sequentially from top to bottom, wherein the material of the first film layer 31 is titanium oxide, the material of the second film layer 32 is silicon oxide, and the material of the third film layer 33 is a mixture of titanium oxide and silicon oxide.

[0025] Reference Figure 1 The thickness of the first film layer 31 is 20nm, the thickness of the second film layer 32 is 40nm, and the thickness of the third film layer 33 is 60nm. The two coating layers 30 are sequentially arranged on the surface of the cover body 10 by magnetic co-sputtering, so that the cover body 10 has the effect of preventing blue light and glare. When external light enters the cover body 10, the cover body 10 can reflect a part of the blue light, making it more comfortable for human eyes to watch, and the two coating layers 30 increase the surface hardness of the cover body 10, making the cover body 10 not easy to be scratched.

[0026] Reference Figure 1 The lower surface of the cover body 10 is screen-printed with a first layer of semi-transparent white ink 40 , which covers the entire lower surface of the cover body 10 , and the transmittance of the first layer of semi-transparent white ink 40 is 60%.

[0027] Further, refer to Figure 1 , the thickness of the first layer of semi-transparent white ink 40 is 7 um.

[0028] Reference Figure 1A second layer of semi-transparent white ink 50 is disposed below the first layer of semi-transparent white ink 40 . The first layer of semi-transparent white ink 40 and the second layer of semi-transparent white ink 50 are arranged in a stepped manner. The transmittance of the second layer of semi-transparent white ink 50 is 60%.

[0029] Further, refer to Figure 1 , the thickness of the second layer of semi-transparent white ink 50 is 7 um.

[0030] Reference Figure 1 A third layer of semi-transparent white ink 60 is arranged below the second layer of semi-transparent white ink 50, and the second layer of semi-transparent white ink 50 and the third layer of semi-transparent white ink 60 are arranged in a stepped manner. The first layer of semi-transparent white ink 40, the second layer of semi-transparent white ink 50 and the third layer of semi-transparent white ink 60 are sequentially silk-screened on the lower surface of the cover body 10, and the first layer of semi-transparent white ink 40, the second layer of semi-transparent white ink 50 and the third layer of semi-transparent white ink 60 are arranged in a stepped manner, so that after the light of the backlight module 20 is irradiated into the backlight module 20, the cover body 10 presents a step-by-step gradient ink effect.

[0031] Reference Figure 1 The first foam double-sided adhesive 70 and the second foam double-sided adhesive 80 for bonding and fixing are arranged between the cover body 10 and the backlight module 20. The first foam double-sided adhesive 70 is located between the third layer of semi-transparent white ink 60 and the backlight module 20, and the second foam double-sided adhesive 80 is located between the first layer of semi-transparent white ink 40 and the backlight module 20. The first foam double-sided adhesive 70 and the second foam double-sided adhesive 80 are respectively located near the edges of both sides of the cover body 10. The thickness of the second foam double-sided adhesive 80 is greater than that of the first foam double-sided adhesive 70, and the thickness of the second foam double-sided adhesive 80 is 14um greater than that of the first foam double-sided adhesive 70. The second foam double-sided adhesive 80 compensates for the thickness difference between the second layer of semi-transparent white ink 50 and the third layer of semi-transparent white ink 60, so that the left and right sides of the cover body 10 are bonded and fixed to the backlight module 20.

[0032] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cover plate structure with increased surface hardness, characterized in that: include: A cover plate body (10), a backlight module (20) being arranged on one side of the cover plate body (10), a coating layer (30) being arranged on the surface of the cover plate body (10) for increasing the surface hardness, the coating layer (30) comprising a first film layer (31), a second film layer (32) and a third film layer (33) stacked in sequence from top to bottom.

2. A cover plate structure with increased surface hardness according to claim 1, characterized in that: The material of the first film layer (31) is titanium oxide, and the material of the second film layer (32) is silicon oxide.

3. A cover plate structure with increased surface hardness according to claim 2, characterized in that: The thickness of the first film layer (31) is 20 nm, the thickness of the second film layer (32) is 40 nm, and the thickness of the third film layer (33) is 60 nm.

4. A cover plate structure with increased surface hardness according to claim 3, characterized in that: The coating layer (30) has two layers, and the two coating layers (30) are stacked in sequence on the surface of the cover plate body (10).

5. The cover plate structure with increased surface hardness according to claim 1, characterized in that: A first layer of semi-transparent white ink (40) is screen-printed on the lower surface of the cover plate body (10), the first layer of semi-transparent white ink (40) covers the entire lower surface of the cover plate body (10), and the transmittance of the first layer of semi-transparent white ink (40) is 60%.

6. A cover plate structure with increased surface hardness according to claim 5, characterized in that: A second layer of semi-transparent white ink (50) is arranged below the first layer of semi-transparent white ink (40), and the transmittance of the second layer of semi-transparent white ink (50) is 60%.

7. A cover plate structure with increased surface hardness according to claim 6, characterized in that: A third layer of semi-transparent white ink (60) is provided below the second layer of semi-transparent white ink (50), and the transmittance of the third layer of semi-transparent white ink (60) is 60%.

8. A cover plate structure with increased surface hardness according to claim 7, characterized in that: The thickness of the first layer of semi-transparent white ink (40), the second layer of semi-transparent white ink (50) and the third layer of semi-transparent white ink (60) are all 7 um.

9. A cover plate structure with increased surface hardness according to claim 8, characterized in that: The first layer of semi-transparent white ink (40), the second layer of semi-transparent white ink (50) and the third layer of semi-transparent white ink (60) are sequentially screen-printed on the lower surface of the cover plate body (10), and the first layer of semi-transparent white ink (40), the second layer of semi-transparent white ink (50) and the third layer of semi-transparent white ink (60) are arranged in a stepped manner.

10. A cover plate structure with increased surface hardness according to claim 9, characterized in that: A first foam double-sided adhesive (70) and a second foam double-sided adhesive (80) for bonding and fixing are arranged between the cover body (10) and the backlight module (20); the first foam double-sided adhesive (70) is located between the third layer of semi-transparent white ink (60) and the backlight module (20); the second foam double-sided adhesive (80) is located between the first layer of semi-transparent white ink (40) and the backlight module (20); the thickness of the second foam double-sided adhesive (80) is 7 um greater than the thickness of the first foam double-sided adhesive (70).

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