Integrated touch module structure

Abstract

The embodiment of the utility model relates to the technical field of touch modules. The utility model further relates to an integrated touch module structure which comprises an upper polarization piece, the upper polarization piece comprises a PVA layer main body, the outer surface of the PVA layer main body is coated with an optical adhesive layer, and the optical adhesive layer is used for isolating the PVA layer main body from water vapor. According to the upper polarizer, the upper polarizer replaces a traditional upper polarizer, the optical adhesive layer can completely wrap the PVA layer main body, the PVA layer main body layer is prevented from being eroded by water vapor and losing the polarization characteristic, the PVA layer main body is protected, meanwhile, a TAC layer and a PSA adhesive layer on the traditional upper polarizer are reduced structurally, the corresponding thickness of a product is reduced, and the product quality is improved. And the optical adhesive layer can be directly connected with the cover plate main body and the upper glass, so that adhesive layers for connection are reduced, and the thickness of the product is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of touch modules, and more specifically, to an integrated touch module structure. Background Art

[0002] Integrated touch module is a technology that integrates touch function into display module, which is mainly used in terminals such as mobile phones, tablet computers, smart watches, industrial control, medical equipment, smart home equipment, car GPS products, etc. The main advantage of integrated touch module is that it provides a more intuitive and convenient human-computer interaction method, allowing users to operate the device by touching the corresponding position on the screen.

[0003] The upper polarizer and cover plate of the existing integrated touch module are bonded and fixed by OCA optical glue, but in a humid environment, the PVA layer of the upper polarizer is easily corroded by moisture, resulting in abnormal display. Therefore, we improve this and propose an integrated touch module structure.

[0004] For example, a Chinese patent (publication number: CN220357266U) discloses a waterproof polarizer, and the specification discloses: Polarizers are widely used in the field of display imaging. Polarizers used on display screens can reduce the occurrence of adverse phenomena such as reflections or reflections that affect the viewing experience, and can improve the display effect of the display screen to a certain extent, improve the light effect, and improve the experience. However, polarizers may easily have water vapor penetrate into the polarizers in a high temperature environment, causing the polarizers to be yellowish and shortening their service life. The above patents can prove the defects of the existing technology. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the utility model is that the PVA layer of the upper polarizer is easily corroded by moisture in a humid environment.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An integrated touch module structure includes an upper polarizer, wherein the upper polarizer includes a PVA layer body, the outer surface of the PVA layer body is coated with an optical adhesive layer, and the optical adhesive layer is used to isolate the PVA layer body from water vapor.

[0008] As an improved manner of the utility model, one side of the PVA layer body is connected to a display module component, and a side of the PVA layer body away from the display module component is provided with a protective component.

[0009] As an improved manner of the present invention, a light source portion is further provided on a side of the display module component away from the upper polarizer, and the light source portion is used to provide a light source for the display module component.

[0010] As an improved manner of the present utility model, the protective component is a cover plate body, and the cover plate body is connected to a side of the upper polarizer away from the display module component.

[0011] As an improved manner of the present invention, the display module component includes an upper glass, and the upper glass is connected to a surface of the upper polarizer away from the cover plate body.

[0012] As an improved approach of the present invention, the upper glass and the cover plate body are both connected to the PVA layer body.

[0013] As an improved manner of the utility model, the display module component further comprises a lower piece of glass, and the lower piece of glass is connected to a surface of the upper piece of glass away from the upper polarizer.

[0014] As an improved manner of the utility model, the display module component further includes a lower polarizer, and the lower polarizer is connected to a surface of the lower glass away from the upper polarizer.

[0015] As an improved manner of the present invention, the light source portion is connected to the lower polarizer.

[0016] As an improved method of the utility model, the light source is a backlight assembly, and the backlight assembly is connected to the side of the lower polarizer away from the lower glass.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem in the prior art that the PVA layer of the upper polarizer is easily corroded by moisture in a humid environment, the upper polarizer set in the present application replaces the traditional upper polarizer with the upper polarizer. The optical adhesive layer can completely wrap the PVA layer body to prevent the PVA layer body from being corroded by water vapor and losing its polarization properties. While protecting the PVA layer body, the structure also reduces the TAC layer and PSA adhesive layer on the traditional upper polarizer, thereby reducing the corresponding thickness of the product. Moreover, the optical adhesive layer can be directly connected to the cover plate body and the upper glass, reducing the adhesive layer used for connection, further reducing the thickness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the upper polarizer provided in this application;

[0020] Figure 2 A schematic diagram of the structure of the integrated touch module provided in this application;

[0021] Figure 3 This is a schematic structural diagram of the display module components of the integrated touch module structure provided in this application.

[0022] Indicated in the figure:

[0023] 1. Upper polarizer; 101. PVA layer body; 102. Optical adhesive layer; 2. Cover plate body; 3. Upper glass; 4. Lower glass; 5. Lower polarizer; 6. Backlight assembly. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] As described in the background art, the upper polarizer and the cover plate of the existing integrated touch module are bonded and fixed by OCA optical adhesive. However, in a humid environment, the PVA layer of the upper polarizer is easily corroded by moisture, resulting in display abnormality.

[0026] In order to solve this technical problem, the utility model provides an integrated touch module structure.

[0027] Specifically, please refer to Figure 1-Figure 3 , the integrated touch module structure specifically includes:

[0028] The upper polarizer 1 comprises a PVA layer body 101 , an outer surface of the PVA layer body 101 is coated with an optical adhesive layer 102 , and the optical adhesive layer 102 is used to isolate the PVA layer body 101 from water vapor.

[0029] The integrated touch module structure provided by the utility model, the upper polarizer 1 set in the present application, replaces the traditional upper polarizer with the upper polarizer, and the optical adhesive layer 102 can completely wrap the PVA layer body 101 to prevent the PVA layer body 101 from being corroded by water vapor and losing its polarization characteristics. While protecting the PVA layer body 101, the structure also reduces the TAC layer and PSA adhesive layer on the traditional upper polarizer, so that the corresponding thickness of the product is thinned, and the optical adhesive layer 102 can be directly connected to the cover plate body 2 and the upper glass 3, reducing the adhesive layer used for connection, and further reducing the thickness of the product.

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Embodiment 1 of the integrated touch module structure of the utility model

[0034] like Figure 1-Figure 3 As shown, the integrated touch module structure of the utility model includes: an upper polarizer 1, the upper polarizer 1 includes a PVA layer body 101, the outer surface of the PVA layer body 101 is coated with an optical adhesive layer 102, and the optical adhesive layer 102 is used to isolate the PVA layer body 101 from water vapor. The upper polarizer 1 is set to replace the traditional upper polarizer, and the optical adhesive layer 102 can completely wrap the PVA layer body 101 to prevent the PVA layer body 101 from being corroded by water vapor and losing its polarization characteristics;

[0035] The traditional upper polarizer is composed of two TAC layers, one PVA layer and one PSA adhesive layer, while the present application is only composed of an optical adhesive layer 102 and a PVA layer main body 101. The structure also reduces the TAC layer and PSA adhesive layer on the traditional upper polarizer, making the product thinner accordingly. In addition, the traditional integrated touch module processing technology requires the polarizer to be attached first and then bonded with the OCA.

[0036] The present application adopts an integrated structure of the PVA layer body 101 and the optical adhesive layer 102, which can be directly used for bonding, without the need to use additional OCA optical adhesive for bonding after bonding the polarizer, which can save a process, reduce the adhesive layer for connection, and further reduce the thickness of the product;

[0037] PVA refers to polyvinyl alcohol film used in the manufacturing field of polarizers. It is the core raw material of polarizers. Its main function is to realize the polarization function. Specifically, PVA film can absorb bidirectional molecules, such as iodine molecules, and make these molecules orderly distributed by stretching and orienting, so that the PVA film has the function of polarization. This polarization function determines the key optical indicators of the polarizer, such as polarization performance, transmittance, and hue.

[0038] The optical adhesive layer 102 may be OCA optical adhesive or SCA optical adhesive;

[0039] OCA optical adhesive is a special adhesive used to bond transparent optical components. It belongs to the category of pressure-sensitive adhesive. OCA optical adhesive is colorless and transparent, with extremely high light transmittance greater than 99% and low haze less than 0.8%. After curing, the refractive index of the adhesive layer is close to that of the bonded optical component. In addition, OCA optical adhesive has high bonding strength within the operating temperature range, low elastic modulus of the adhesive layer, small shrinkage deformation after curing, and is resistant to light aging and moisture and heat aging. It can be cured at room temperature or medium temperature. The main advantages of OCA optical adhesive include high cleanliness, high light transmittance, low haze, uniform adhesive layer thickness, high flatness, high adhesion, and high bonding strength after bonding. At the same time, it can adapt to the bonding of a variety of materials, such as soft to soft, soft to hard, and hard to hard, so its bonding material applicability is wide;

[0040] SCA optical adhesive is a substitute for OCA optical adhesive. It has many similarities with OCA optical adhesive in performance and application. SCA optical adhesive has excellent film fluidity and adhesion. SCA optical adhesive has strong adhesion after bonding and is not easy to rebound, debond or fall off, thereby improving the stability and reliability of the product.

[0041] Embodiment 2 of the integrated touch module structure of the utility model

[0042] like Figure 1-Figure 3 As shown, the integrated touch module structure of the utility model includes: an upper polarizer 1, the upper polarizer 1 includes a PVA layer body 101, the outer surface of the PVA layer body 101 is coated with an optical adhesive layer 102, and the optical adhesive layer 102 is used to isolate the PVA layer body 101 from water vapor.

[0043] One side of the PVA layer body 101 is connected to a display module component, and one side of the PVA layer body 101 away from the display module component is provided with a protective component, and the protective component is used to protect the display module component.

[0044] Further, such as Figure 2-Figure 3 As shown, a light source portion is further provided on a side of the display module component away from the upper polarizer 1 , and the light source portion is used to provide light source for the display module component to meet display requirements.

[0045] Further, such as Figure 2As shown, the protective component is a cover body 2, and the cover body 2 is connected to the side of the upper polarizer 1 away from the display module component. In daily use, the integrated touch module is often touched or collided, and the cover body 2 can effectively reduce scratches and damages, and protect the screen from external physical impact damage; when strong indoor light shines on the integrated touch module, the cover body 2 can reduce reflection, improve image clarity and display effect, so that users can see the content more clearly; the cover body 2 can also reduce blue light radiation, reduce eye fatigue and discomfort, and play a certain protective role on the user's eyesight; using the cover body 2 can reduce direct contact with the screen, and dirt such as stains and fingerprints will not directly adhere to the display module components, which makes cleaning simpler and more convenient.

[0046] Further, such as Figure 2 As shown, the display module assembly includes an upper glass 3 , and the upper glass 3 is connected to a surface of the upper polarizer 1 away from the cover plate body 2 .

[0047] Further, such as Figure 2 As shown, the upper glass 3 and the cover plate body 2 are both connected to the PVA layer body 101 .

[0048] Further, such as Figure 2 As shown, the display module component also includes a lower glass 4, which is connected to the side of the upper glass 3 away from the upper polarizer 1. The main functions of the upper glass 3 and the lower glass 4 are to constitute the physical structure of the display module component and provide support for other components. At the same time, they also have the responsibility of protecting internal components and preventing external physical impact and damage.

[0049] Further, such as Figure 2 As shown, the display module component also includes a lower polarizer 5, which is connected to the side of the lower glass 4 away from the upper polarizer 1. The lower polarizer 5 plays a vital role in the display module component. It is a key component for converting the light beam generated by the backlight assembly 6 into polarized light. When natural light passes through the lower polarizer 5, the light with a vibration direction perpendicular to the transmission axis of the lower polarizer 5 will be absorbed, leaving only the polarized light with a vibration direction parallel to the transmission axis of the lower polarizer 5. In this way, the polarized light can be further modulated and processed by the liquid crystal layer to finally produce a display image.

[0050] Further, such as Figure 2 As shown, the light source portion is connected to the lower polarizer 5 .

[0051] Embodiment 3 of the integrated touch module structure of the utility model

[0052] like Figure 1-Figure 3As shown, the integrated touch module structure of the utility model includes: an upper polarizer 1, the upper polarizer 1 includes a PVA layer body 101, the outer surface of the PVA layer body 101 is coated with an optical adhesive layer 102, and the optical adhesive layer 102 is used to isolate the PVA layer body 101 from water vapor.

[0053] One side of the PVA layer body 101 is connected to a display module component, and one side of the PVA layer body 101 away from the display module component is provided with a protective component, and the protective component is used to protect the display module component.

[0054] Further, such as Figure 2-Figure 3 As shown, a light source portion is further provided on a side of the display module component away from the upper polarizer 1 , and the light source portion is used to provide light source for the display module component to meet display requirements.

[0055] Further, such as Figure 2 As shown, the protective component is a cover plate body 2, and the cover plate body 2 is connected to a side of the upper polarizer 1 away from the display module component.

[0056] Further, such as Figure 2 As shown, the display module assembly includes an upper glass 3 , and the upper glass 3 is connected to a surface of the upper polarizer 1 away from the cover plate body 2 .

[0057] Further, such as Figure 2 As shown, the upper glass 3 and the cover plate body 2 are both connected to the PVA layer body 101 .

[0058] Further, such as Figure 2 As shown, the display module component also includes a lower glass 4, which is connected to the side of the upper glass 3 away from the upper polarizer 1. The main functions of the upper glass 3 and the lower glass 4 are to constitute the physical structure of the display module component and provide support for other components. At the same time, they also have the responsibility of protecting internal components and preventing external physical impact and damage.

[0059] Further, such as Figure 2 As shown, the display module component also includes a lower polarizer 5, which is connected to the side of the lower glass 4 away from the upper polarizer 1. The lower polarizer 5 plays a vital role in the display module component. It is a key component for converting the light beam generated by the backlight assembly 6 into polarized light. When natural light passes through the lower polarizer 5, the light with a vibration direction perpendicular to the transmission axis of the lower polarizer 5 will be absorbed, leaving only the polarized light with a vibration direction parallel to the transmission axis of the lower polarizer 5. In this way, the polarized light can be further modulated and processed by the liquid crystal layer to finally produce a display image.

[0060] Further, such as Figure 2 As shown, the light source portion is connected to the lower polarizer 5 .

[0061] like Figure 2 As shown, the light source is a backlight assembly 6, which is connected to the side of the lower polarizer 5 away from the lower glass 4. The main function of the backlight assembly 6 is to provide bright light, so that the displayed text image is clearer and brighter. The backlight assembly 6 is usually composed of an LED lamp and a transparent light guide plate, which can provide soft background lighting. This lighting not only reduces visual fatigue, but also improves the overall quality of the product; specifically, the components of the backlight assembly 6 each play an important role. For example, the backlight source such as an LED lamp emits light, the reflector reflects the light of the backlight source onto the light guide plate and enhances the brightness, and the light guide plate is responsible for evenly distributing the light so that it radiates to the entire screen. In addition, the substrate is used to support the entire backlight part and ensure its stability.

[0062] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An integrated touch module structure, characterized in that: include: An upper polarizer (1), the upper polarizer (1) comprising a PVA layer body (101), the outer surface of the PVA layer body (101) being coated with an optical adhesive layer (102), the optical adhesive layer (102) being used to isolate the PVA layer body (101) from water vapor.

2. The integrated touch module structure according to claim 1, characterized in that: One side of the PVA layer body (101) is connected to a display module component, and a side of the PVA layer body (101) away from the display module component is provided with a protective component.

3. The integrated touch module structure according to claim 2, characterized in that: A light source portion is also provided on a side of the display module component away from the upper polarizer (1), and the light source portion is used to provide a light source for the display module component.

4. The integrated touch module structure according to claim 3, characterized in that: The protective component is a cover plate body (2), and the cover plate body (2) is connected to a side of the upper polarizer (1) away from the display module component.

5. The integrated touch module structure according to claim 4, characterized in that: The display module component comprises an upper glass (3), wherein the upper glass (3) is connected to a surface of the upper polarizer (1) away from the cover plate body (2).

6. The integrated touch module structure according to claim 5, characterized in that: The upper glass (3) and the cover plate main body (2) are both connected to the PVA layer main body (101).

7. The integrated touch module structure according to claim 6, characterized in that: The display module component further comprises a lower glass (4), wherein the lower glass (4) is connected to a surface of the upper glass (3) away from the upper polarizer (1).

8. The integrated touch module structure according to claim 7, characterized in that: The display module component further comprises a lower polarizer (5), wherein the lower polarizer (5) is connected to a surface of the lower glass (4) away from the upper polarizer (1).

9. The integrated touch module structure according to claim 8, characterized in that: The light source part is connected to the lower polarizer (5).

10. The integrated touch module structure according to claim 9, characterized in that: The light source section is a backlight assembly (6), and the backlight assembly (6) is connected to a surface of the lower polarizer (5) away from the lower glass (4).

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