Foam attached watermarking-resistant structure of touch display module

Abstract

The utility model relates to the technical field of touch control equipment, in particular to a touch control display module foam attached watermarking prevention structure which comprises a TP film, a foam rubber frame is arranged on the back face of the TP film, bent exhaust grooves are formed in the upper side and the lower side of an inner cavity of the foam rubber frame, a receiver hole is formed in the top of the front face of the TP film, and a waterproof layer is arranged on the receiver hole. A front camera hole is formed in one side of the receiver hole, the top of the front face of the foam rubber frame is the same, a dustproof tearing film adheres to the front face of the TP film, the TP film comprises a PET film layer, a thermoplastic polyurethane elastomer layer, an anti-static layer, an anti-blue-light layer and an anti-reflection layer from top to bottom, the foam rubber frame comprises foam, and the top of the foam rubber frame is the same as the top of the front face of the TP film. A first double-faced adhesive tape is bonded to the top of the foam, a heavy release film is bonded to the side, away from the foam, of the first double-faced adhesive tape, a second double-faced adhesive tape is bonded to the bottom of the foam, and after the touch screen is attached to the module, exhaust can be conducted in the visible area through the bent exhaust groove, and watermarks are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of touch control equipment, in particular to a touch control display module foam laminating waterproof print structure. Background Art

[0002] A touch screen (TP for short), also known as a touch screen or a touch panel, is an inductive liquid crystal display device that can receive input signals such as contacts. With the rapid development of electronic technology, electronic products, especially large-screen smartphones, have become indispensable products for humans and are closely related to human life. A touch-sensitive electronic display screen generally includes a touch module and a display module. Users can directly touch the touch module to make the display module display different images. When the touch screen is assembled, the touch module and the display module are glued together through a piece of foam glue. However, in the prior art, after the touch screen and the display module are assembled, the foam glue around the visible area is glued and sealed. After being vacuum-adsorbed and packaged, the visible area cannot be exhausted, resulting in watermarks caused by the contact between the touch screen and the visible area of ​​the module under the influence of air pressure. Utility Model Content

[0003] The purpose of the utility model is to provide a touch display module foam laminating waterproof print structure to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A touch display module foam-laminated waterproof print structure comprises a TP film, a foam glue frame is arranged on the back of the TP film, bent exhaust grooves are provided on the upper and lower sides of the inner cavity of the foam glue frame, an earpiece hole is provided on the top of the front side of the TP film, a front camera hole is provided on one side of the earpiece hole, the top of the front side of the foam glue frame is the same, and a dust-proof tear film is adhered to the front side of the TP film.

[0006] As a preferred solution of the utility model, the total thickness of the TP film and the foam rubber frame is 0.175mm±0.005mm, and the TP film includes a PET film layer, a thermoplastic polyurethane elastomer layer, an antistatic layer, an anti-blue light layer and an anti-reflection layer from top to bottom.

[0007] As a preferred solution of the utility model, the PET film layer, the thermoplastic polyurethane elastomer layer, the antistatic layer and the anti-blue light layer are bonded to each other by OCA optical glue, and the anti-blue light layer and the anti-reflection layer are connected by a pressure-sensitive adhesive.

[0008] As a preferred solution of the utility model, the outer frame width of the foam glue frame is 68.2mm±0.15mm, the inner cavity width of the foam glue frame is 63.2mm±0.15mm, the outer frame length of the foam glue frame is 144.9mm±0.15mm, and the inner frame length of the foam glue frame is 125.1mm±0.15mm.

[0009] As a preferred solution of the utility model, the foam adhesive frame includes foam, the top of the foam is bonded with a first double-sided tape, the side of the first double-sided tape away from the foam is bonded with a heavy release film, the bottom of the foam is bonded with a second double-sided tape, and the side of the second double-sided tape away from the foam is bonded with a light release film.

[0010] As a preferred solution of the utility model, a tear strip is fixedly connected to the bottom of the light release film, and the thickness of the tear strip is 0.005 mm.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, by opening bending exhaust grooves on both sides of the inner frame of the foam rubber frame, after the touch screen and the foam rubber frame are bonded together, vacuum adsorption packaging is performed, and the visible area can be vented through the bending exhaust grooves, thereby eliminating watermarks caused by the contact between the touch screen and the module in the visible area due to the influence of air pressure.

[0013] 2. In the present invention, the PET film layer and the thermoplastic polyurethane elastomer layer are combined with OCA optical glue to enhance the strength of the TP film and improve the impact resistance. The anti-reflection layer reduces the visual interference of the touch screen and improves the overall visual effect of the touch screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the back structure of the utility model;

[0015] Figure 2 This is a structural diagram of the foam rubber frame of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the TP membrane of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the foam rubber frame of the utility model.

[0018] In the figure: 1. TP film; 2. Foam adhesive frame; 201. Heavy release film; 202. First double-sided tape; 203. Foam; 204. Second double-sided tape; 205. Light release film; 3. Bend exhaust groove; 4. Earpiece hole; 5. Front camera hole; 6. Dust-proof tear film; 7. Tear strip; 101. PET film layer; 102. Thermoplastic polyurethane elastomer layer; 103. Anti-static layer; 104. Anti-blue light layer; 105. Anti-reflection layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. 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 make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0023] For examples, see Figure 1 , Figure 2 , the utility model provides a technical solution:

[0024] A touch display module foam laminating water mark prevention structure comprises a TP film 1, a foam adhesive frame 2 is arranged on the back of the TP film 1, bending exhaust grooves 3 are provided on the upper and lower sides of the inner cavity of the foam adhesive frame 2, a handset hole 4 is provided on the top of the front of the TP film 1, a front camera hole 5 is provided on one side of the handset hole 4, the top of the front of the foam adhesive frame 2 is the same, a dust and tear film 6 is bonded to the front of the TP film 1, and the visible area can be vented through the bending exhaust groove 3 to eliminate watermarks caused by the contact between the touch screen and the visible area of ​​the module laminating due to the influence of air pressure.

[0025] like Figure 3 As shown, the total thickness of the TP film 1 and the foam rubber frame 2 is 0.175 mm ± 0.005 mm. The TP film 1 includes a PET film layer 101, a thermoplastic polyurethane elastomer layer 102, an antistatic layer 103, an anti-blue light layer 104 and an anti-reflection layer 105 from top to bottom. The PET film layer 101, the thermoplastic polyurethane elastomer layer 102, the antistatic layer 103 and the anti-blue light layer 104 are bonded to each other by OCA optical glue, and the anti-blue light layer 104 and the anti-reflection layer 105 are connected by a pressure-sensitive adhesive.

[0026] like Figure 1 , Figure 2 As shown, the outer frame width of the foam glue frame 2 is 68.2mm±0.15mm, the inner cavity width of the foam glue frame 2 is 63.2mm±0.15mm, the outer frame length of the foam glue frame 2 is 144.9mm±0.15mm, and the inner frame length of the foam glue frame 2 is 125.1mm±0.15mm.

[0027] like Figure 1 , Figure 4 As shown, the foam adhesive frame 2 includes foam 203, the top of the foam 203 is bonded with a first double-sided adhesive 202, the side of the first double-sided adhesive 202 away from the foam 203 is bonded with a heavy release film 201, the bottom of the foam 203 is bonded with a second double-sided adhesive 204, the side of the second double-sided adhesive 204 away from the foam 203 is bonded with a light release film 205, and the bottom of the light release film 205 is fixedly connected with a tear strip 7, and the thickness of the tear strip 7 is 0.005mm.

[0028] The working process of the utility model is as follows: when in use, the heavy release film 201 is torn off to expose the first double-sided adhesive 202, which is then bonded to the back of the TP film 1 by the first double-sided adhesive 202, and the PET film layer 101 and the thermoplastic polyurethane elastomer layer 102 are combined by OCA optical glue to enhance the strength of the TP film 1 and improve the impact resistance. The anti-reflection layer 105 reduces the visual interference problem of the touch screen and improves the overall visual effect of the touch screen. The anti-static layer 103 can improve the anti-static property of the TP film 1 and effectively reduce The damage caused by static electricity to the touch screen can improve the quality of the touch screen. The anti-blue light layer 104 can protect the eyes. The surface of the TP film 1 is provided with a dust-proof tear film 6 to avoid wear of the TP film 1 during transportation. The light release film 205 can be torn off through the tear strip 7 to reveal the second double-sided adhesive 204, which is adhered to the surface of the touch screen. The vacuum adsorption packaging is carried out, and the visible area can be vented through the bent exhaust groove 3 to eliminate the watermark caused by the contact of the visible area of ​​the touch screen and the module due to the influence of air pressure, thereby improving the bonding effect.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A touch display module foam laminating waterproof print structure, comprising a TP film (1), characterized in that: A foam rubber frame (2) is arranged on the back of the TP film (1), and bent exhaust grooves (3) are arranged on the upper and lower sides of the inner cavity of the foam rubber frame (2). A handset hole (4) is arranged on the top of the front of the TP film (1), and a front camera hole (5) is arranged on one side of the handset hole (4). The top of the front of the foam rubber frame (2) is the same, and a dustproof tear film (6) is bonded to the front of the TP film (1).

2. The touch display module foam laminating waterproof print structure according to claim 1, characterized in that: The total thickness of the TP film (1) and the foam rubber frame (2) is 0.175 mm±0.005 mm, and the TP film (1) comprises, from top to bottom, a PET film layer (101), a thermoplastic polyurethane elastomer layer (102), an antistatic layer (103), an anti-blue light layer (104), and an anti-reflection layer (105).

3. The touch display module foam laminating waterproof print structure according to claim 2, characterized in that: The PET film layer (101), the thermoplastic polyurethane elastomer layer (102), the antistatic layer (103) and the anti-blue light layer (104) are bonded to each other via OCA optical glue, and the anti-blue light layer (104) and the anti-reflection layer (105) are connected via a pressure-sensitive adhesive.

4. The touch display module foam laminating waterproof print structure according to claim 1, characterized in that: The outer frame width of the foam glue frame (2) is 68.2 mm ± 0.15 mm, the inner cavity width of the foam glue frame (2) is 63.2 mm ± 0.15 mm, the outer frame length of the foam glue frame (2) is 144.9 mm ± 0.15 mm, and the inner frame length of the foam glue frame (2) is 125.1 mm ± 0.15 mm.

5. The touch display module foam laminating waterproof print structure according to claim 1, characterized in that: The foam adhesive frame (2) comprises foam (203), the top of the foam (203) is bonded with a first double-sided adhesive tape (202), a side of the first double-sided adhesive tape (202) away from the foam (203) is bonded with a heavy release film (201), the bottom of the foam (203) is bonded with a second double-sided adhesive tape (204), and a side of the second double-sided adhesive tape (204) away from the foam (203) is bonded with a light release film (205).

6. The touch display module foam laminating waterproof print structure according to claim 5, characterized in that: A tear strip (7) is fixedly connected to the bottom of the light release film (205), and the thickness of the tear strip (7) is 0.005 mm.

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