Double-sided adhesive structure for lower brightness enhancement film

Abstract

The utility model discloses a double-sided adhesive structure for a lower brightness enhancement film, which comprises a display screen module, and a backlight film is mounted in the display screen module. A double-sided adhesive is adhered to the bottom of one side of the backlight sheet, and the double-sided adhesive comprises a leakage part, an adhesive part I and an adhesive part II; the double-sided adhesive is adhered to the backlight sheet through an adhesive part II, a lower brightness enhancement sheet is adhered to the adhesive part I at one position of the double-sided adhesive, and a diffusion film black gasket is adhered to the adhesive part I at the other position of the double-sided adhesive; by adding a transparent double-sided adhesive on the back surface of the black gasket of the diffusion film, the edge of the lower brightness enhancement film can be fixed by the transparent double-sided adhesive after the lower brightness enhancement film is assembled on the backlight film, so that the stabilizing effect on the lower brightness enhancement film is greatly improved, and compared with a traditional structure, the adhesive area of the lower brightness enhancement film is greatly increased; therefore, the problem that the lower brightness enhancement film is not firmly pasted and is easy to shift is fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing a lower brightness enhancement sheet, in particular to a double-sided adhesive structure for a lower brightness enhancement sheet. Background Art

[0002] Mobile phone backlight refers to the light source behind the mobile phone screen, which is used to illuminate the pixels on the screen so that users can clearly see the content on the mobile phone screen in a dark environment. Backlight technology is crucial to the display effect and user experience of mobile phone screens.

[0003] Currently, due to the limitation of the internal structure, mobile phone backlight products usually only have two small airtight positions reserved for sticking double-sided tape to fix the lower brightness enhancement sheet. In this case, if the lower brightness enhancement sheet and the double-sided tape are not effectively pressure-maintained during assembly, the lower brightness enhancement sheet may be easily loosely adhered. When the whole machine is subjected to roller, drop and other tests, the lower brightness enhancement sheet may easily shift, resulting in poor display of the mobile phone backlight product and affecting the product yield.

[0004] Therefore, for the above-described situation, we specifically designed a double-sided adhesive structure for the lower brightness enhancement sheet. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-sided adhesive structure for a lower brightness enhancement film, comprising a display screen module, wherein a backlight film is installed inside the display screen module; double-sided adhesive is pasted on the bottom of one side of the backlight film, and the double-sided adhesive includes a leakage portion, an adhesive portion one and an adhesive portion two, the leakage portion is located in the middle of one side of the double-sided adhesive, the adhesive portion one has two locations and is located on the left and right sides of the leakage portion, and the adhesive portion two is located on the other side of the double-sided adhesive; the double-sided adhesive is pasted on the backlight film through the adhesive portion two, the adhesive portion one at one location of the double-sided adhesive is pasted with the lower brightness enhancement film, and the adhesive portion one at the other location of the double-sided adhesive is pasted with a diffusion film black gasket.

[0007] As a further solution of the utility model: the surface of the leakage portion is a smooth structure, and the leakage portion is located between the lower brightness enhancement sheet and the black gasket of the diffusion film.

[0008] As a further solution of the utility model: the width of the double-sided adhesive is the same as the width of the lower brightness enhancement sheet, and the width of the double-sided adhesive is the same as the width of the black gasket of the diffusion film.

[0009] As a further solution of the utility model: an upper brightness enhancement sheet is also installed on the surface of the lower brightness enhancement sheet.

[0010] As a further solution of the utility model: single-sided adhesive is fixed on both sides of the double-sided adhesive and close to one of the adhesive portions, and the sides of the two sheets of single-sided adhesive close to each other are adhesive surfaces.

[0011] As a further solution of the utility model: a release paper 2 is attached to one of the adhesive parts 1 of the double-sided adhesive, and the left and right sides of the release paper 2 are bent 90 degrees and then attached to the adhesive surface of the single-sided adhesive.

[0012] As a further solution of the utility model: after tearing off the second release paper, the sticky surfaces of the two sheets of single-sided adhesive are respectively attached to the two side surfaces of the lower gloss-enhancing sheet.

[0013] As a further solution of the utility model: when the double-sided adhesive is not in use, a release paper is attached to another adhesive portion of the double-sided adhesive, and the size of the release paper is the same as that of the adhesive portion.

[0014] As a further solution of the utility model: when the double-sided adhesive tape is not in use, a release paper three is attached to the bottom adhesive surface of the double-sided adhesive tape, and the size of the release paper three is the same as that of the double-sided adhesive tape.

[0015] As a further solution of the utility model: the double-sided adhesive and the single-sided adhesive are both transparent adhesives.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] In the present application, a transparent double-sided adhesive is added to the back of the black gasket of the diffusion film. After the lower brightness enhancement sheet is assembled on the backlight sheet, the edge of the lower brightness enhancement sheet will be fixed by the transparent double-sided adhesive, thereby greatly increasing the stability of the lower brightness enhancement sheet. Compared with the traditional structure, the adhesive area of ​​the lower brightness enhancement sheet is greatly increased, thereby fundamentally solving the problem that the lower brightness enhancement sheet is not firmly adhered and easy to shift. At the same time, with the single-sided adhesive designed on the double-sided adhesive, the left and right sides of the lower brightness enhancement sheet can be bonded, thereby achieving the purpose of reinforcing the two sides of the lower brightness enhancement sheet, further reducing the possibility of left and right displacement, and can further improve the firmness of the lower brightness enhancement sheet in the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side cross-sectional structural schematic diagram of the display screen module of the utility model;

[0019] Figure 2 This utility model Figure 1 A is an enlarged structural diagram;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the double-sided adhesive of the utility model;

[0021] Figure 4 It is a partial side view structural schematic diagram of the lower brightness enhancement sheet of the utility model adhered to the double-sided adhesive.

[0022] The reference numerals and names in the figures are as follows:

[0023] 1. Display screen module; 2. Backlight; 3. Diffusion film black gasket; 4. Lower brightening sheet; 5. Upper brightening sheet; 6. Double-sided adhesive; 7. Leakage part; 8. Adhesive part one; 9. Adhesive part two; 10. Single-sided adhesive; 11. Release paper one; 12. Release paper two; 13. Release paper three. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 A double-sided adhesive structure for a lower brightness enhancement film comprises a display screen module 1, wherein a backlight film 2 is installed inside the display screen module 1; a double-sided adhesive 6 is pasted on the bottom of one side of the backlight film 2, and the double-sided adhesive 6 is transparent adhesive. The double-sided adhesive 6 comprises a leakage portion 7, an adhesive portion 1 8 and an adhesive portion 2 9, wherein the leakage portion 7 is located in the middle of one side of the double-sided adhesive 6, the adhesive portion 1 8 has two locations and is located on the left and right sides of the leakage portion 7, and the adhesive portion 2 9 is located on the other side of the double-sided adhesive 6; the double-sided adhesive 6 is pasted on the backlight film 2 through the adhesive portion 2 9, the adhesive portion 1 8 at one location of the double-sided adhesive 6 is pasted with a lower brightness enhancement film 4, and the adhesive portion 1 8 at another location of the double-sided adhesive 6 is pasted with a diffusion film black gasket 3, and an upper brightness enhancement film 5 is also installed on the surface of the lower brightness enhancement film 4.

[0026] Specifically, a transparent double-sided adhesive 6 is added to the back of the black gasket 3 of the diffusion film. After the lower brightness enhancement sheet 4 is assembled onto the backlight sheet 2, the edge of the lower brightness enhancement sheet 4 will be fixed by the transparent double-sided adhesive 6, thereby greatly increasing the stability of the lower brightness enhancement sheet 4. Compared with the traditional structure, the adhesive area of ​​the lower brightness enhancement sheet 4 is greatly increased, thereby fundamentally solving the problem that the lower brightness enhancement sheet 4 is not firmly adhered and is easy to shift.

[0027] See also Figure 2-3 In this embodiment, the surface of the leakage portion 7 is a smooth structure, and the leakage portion 7 is located between the lower brightness enhancement sheet 4 and the diffusion film black pad 3.

[0028] Specifically, a leakage portion 7 is provided on the double-sided adhesive 6, and the surface of the leakage portion 7 is smooth and has no adhesive. Since the leakage portion 7 does not contact any structure, the surface of the leakage portion 7 can avoid dust adhering to the surface of the leakage portion 7 due to the adhesive.

[0029] See also Figure 4 In this embodiment, the width of the double-sided adhesive 6 is the same as the width of the lower brightness enhancement sheet 4 , and the width of the double-sided adhesive 6 is the same as the width of the diffusion film black pad 3 .

[0030] Specifically, since the width of the double-sided adhesive 6 is the same as that of the lower brightness enhancement sheet 4 and the diffusion film black gasket 3, the double-sided adhesive 6 can fully play its adhesive role and firmly fix the lower brightness enhancement sheet 4 and the diffusion film black gasket 3 on the backlight sheet 2.

[0031] See also Figure 3-4 In the present embodiment, single-sided adhesive 10 is fixed on both sides of the double-sided adhesive 6 and close to one of the adhesive portions 8. The sides of the two single-sided adhesives 10 close to each other are adhesive surfaces. The single-sided adhesive 10 is transparent adhesive. A release paper 2 12 is attached to one of the adhesive portions 8 of the double-sided adhesive 6. The left and right sides of the release paper 2 12 are bent 90 degrees and attached to the adhesive surface of the single-sided adhesive 10. After the release paper 2 12 is torn off, the adhesive surfaces of the two single-sided adhesives 10 are respectively attached to the two side surfaces of the lower brightening sheet 4.

[0032] Specifically, by designing the release paper 12, when the double-sided adhesive 6 is not in use as a whole, the release paper 12 can be used to shield and protect the sticky surface of the single-sided adhesive 10 to avoid loss of stickiness due to external pollution. At the same time, the single-sided adhesive 10 is arranged on the double-sided adhesive 6, so that the double-sided adhesive 6 can be adhered to the back of the lower brightness enhancement sheet 4 while the single-sided adhesive 10 can be used to adhere to the left and right sides of the lower brightness enhancement sheet 4, thereby further improving the stability of the lower brightness enhancement sheet 4 after installation.

[0033] See also Figure 3 In the present embodiment, when the double-sided adhesive 6 is not in use, a release paper 11 is attached to the other adhesive portion 18 of the double-sided adhesive 6, and the size of the release paper 11 is the same as the size of the adhesive portion 8 at that location; when the double-sided adhesive 6 is not in use, a release paper 3 13 is attached to the bottom adhesive surface of the double-sided adhesive 6, and the size of the release paper 3 13 is the same as the size of the double-sided adhesive 6.

[0034] Specifically, before use, the double-sided adhesive 6 is shielded and protected by release paper 1 11 and release paper 3 13 to protect the adhesive part 1 8 and the adhesive part 2 9 of the double-sided adhesive 6, thereby preventing the adhesive part 1 8 and the adhesive part 2 9 from being contaminated by the outside world, ensuring that the adhesive part 1 8 and the adhesive part 2 9 can continue to maintain their stickiness, which is conducive to the subsequent good bonding effect between the adhesive part 1 8 and the adhesive part 2 9.

[0035] When in use: first tear off the release paper three 13 on the back of the double-sided adhesive 6 to expose the sticky surface on the back of the double-sided adhesive 6, and stick the double-sided adhesive 6 on the backlight sheet 2, then tear off the release paper one 11 to expose the adhesive portion one 8 at one place on the front of the double-sided adhesive 6, and stick the black gasket 3 of the diffusion film on the adhesive portion one 8 here, then tear off the release paper two 12 to expose the adhesive portion one 8 at another place on the front of the double-sided adhesive 6, and stick the bottom back of the lower brightness enhancement sheet 4 on the adhesive portion one 8 here, and stick two pieces of single-sided adhesive 10 on the left and right sides of the lower brightness enhancement sheet 4, after maintaining the pressure on the lower brightness enhancement sheet 4 and the double-sided adhesive 6, finally install the upper brightness enhancement sheet 5 on the lower brightness enhancement sheet 4.

[0036] It should be noted that the top of the lower brightness enhancement sheet 4, that is, the other portion without the double-sided adhesive 6, can be fixed in a conventional manner.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A double-sided adhesive structure for a lower brightness enhancement sheet, characterized in that: It comprises a display screen module (1), wherein a backlight sheet (2) is installed inside the display screen module (1); A double-sided adhesive (6) is adhered to the bottom of one side of the backlight sheet (2), and the double-sided adhesive (6) includes a leakage portion (7), an adhesive portion 1 (8) and an adhesive portion 2 (9), the leakage portion (7) is located in the middle of one side of the double-sided adhesive (6), the adhesive portion 1 (8) has two locations and is located on the left and right sides of the leakage portion (7), and the adhesive portion 2 (9) is located on the other side of the double-sided adhesive (6); The double-sided adhesive (6) is adhered to the backlight sheet (2) via adhesive portion 2 (9); adhesive portion 1 (8) at one location of the double-sided adhesive (6) is adhered to the lower brightness enhancement sheet (4); and adhesive portion 1 (8) at another location of the double-sided adhesive (6) is adhered to the diffusion film black gasket (3).

2. A double-sided adhesive structure for a lower brightness enhancement sheet according to claim 1, characterized in that: The surface of the leakage portion (7) is a smooth structure, and the leakage portion (7) is located between the lower brightness enhancement sheet (4) and the diffusion film black gasket (3).

3. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: The width of the double-sided adhesive (6) is the same as the width of the lower brightness enhancement sheet (4), and the width of the double-sided adhesive (6) is the same as the width of the diffusion film black gasket (3).

4. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: An upper brightness enhancement sheet (5) is also installed on the surface of the lower brightness enhancement sheet (4).

5. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: Single-sided adhesive (10) is fixed on both sides of the double-sided adhesive (6) and close to one of the adhesive portions (8), and the sides of the two sheets of single-sided adhesive (10) close to each other are adhesive surfaces.

6. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: A release paper 2 (12) is attached to one of the adhesive portions 1 (8) of the double-sided adhesive (6), and the left and right sides of the release paper 2 (12) are bent at 90 degrees and then attached to the adhesive surface of the single-sided adhesive (10).

7. A double-sided adhesive structure for a lower brightness enhancement sheet according to claim 6, characterized in that: After tearing off the second release paper (12), the sticky surfaces of the two sheets of single-sided adhesive (10) are respectively attached to the two side surfaces of the lower brightness enhancement sheet (4).

8. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: When the double-sided adhesive tape (6) is not in use, a release paper (11) is attached to the other adhesive portion (8) of the double-sided adhesive tape (6), and the size of the release paper (11) is the same as that of the adhesive portion (8) at that location.

9. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: When the double-sided adhesive tape (6) is not in use, a release paper three (13) is attached to the bottom adhesive surface of the double-sided adhesive tape (6), and the size of the release paper three (13) is the same as that of the double-sided adhesive tape (6).

10. The double-sided adhesive structure for the lower brightness enhancement sheet according to claim 1, characterized in that: The double-sided adhesive (6) and the single-sided adhesive (10) are both transparent adhesives.

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