Polaroid with touch control function
By integrating a touch metal wire layer on the polarizer and bonding it with OCA and PSA adhesive layers, combined with a PMMA layer, the problems of large thickness and high cost of traditional touch screens are solved, and the touch screen design of thin and light devices is realized.
Patent Information
- Application Number
- CN202422935417.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Due to the layout of the multi-layer structure and the selection of materials, the traditional touch screen design has a large overall thickness, increased manufacturing costs, and cannot meet some application scenarios that have strict requirements on device thickness.
By integrating a touch metal wire layer on the polarizer, bonding it with an OCA adhesive layer and a PSA adhesive layer, and combining it with a PMMA layer to enhance structural stability, simplify the manufacturing process and reduce costs.
While achieving the touch function of the polarizer, the overall thickness is reduced, the production cost is lowered, and the structural stability and display effect are improved, meeting the needs of thin and light devices.
Smart Images

Figure CN223450282U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to touch screen technical field, concretely is a kind of polaroid with touch. BACKGROUND
[0002] Polaroid is an optical assembly, mainly used to convert natural light into polarized light. Natural light contains light waves vibrating in all directions, and polaroid can selectively allow light waves in a certain direction to pass through, while absorbing light waves in other directions. This feature makes polaroid play an important role in various optical devices, especially in liquid crystal display (LCD). Polaroid is widely used, in addition to being used as a key component in liquid crystal display, it is also used in photography, optical instruments, sunglasses and other fields. In liquid crystal display, polaroid mainly plays the role of light switch, by controlling the passing and not passing of light, the brightness change of image is realized, so as to form display picture.
[0003] The traditional touch screen design due to the layout of multi-layer structure and the selection of material, lead to the overall thickness is larger, manufacturing cost increases, and can not meet some strict requirements of the thickness of the application scene of device. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the traditional touch screen design due to the layout of multi-layer structure and the selection of material, lead to the overall thickness is larger, manufacturing cost increases, and can not meet some strict requirements of the thickness of the application scene of device and so on.
[0005] The utility model realizes above-mentioned purpose by following technical scheme: provide a kind of polaroid with touch, including front polaroid, the side of the front polaroid is equipped with upper substrate glass, the lower side of the upper substrate glass is connected and is equipped with color filter, the lower side of the color filter is connected and is equipped with liquid crystal layer, the lower side of the liquid crystal layer is connected and is equipped with lower substrate glass, the lower side of the lower substrate glass is connected and is equipped with rear polaroid, OCA glue layer is adhered on the front polaroid, the OCA glue layer is adhered with touch metal wire layer.
[0006] Further, the OCA glue layer is adhered on the front polaroid, the OCA glue layer includes the first OCA glue layer adhered on the lower side of the front polaroid, the touch metal wire layer is adhered on the first OCA glue layer, and the touch metal wire layer is adhered with the upper substrate glass by the second OCA glue layer.
[0007] Further, the OCA adhesive layer is adhered on the front polarizing plate, the OCA adhesive layer comprises a third OCA adhesive layer adhered on the lower side of the front polarizing plate, the touch metal wire layer is adhered on the third OCA adhesive layer, the touch metal wire layer and the front polarizing plate are further adhered through a PSA adhesive layer, one side of the touch metal wire layer is provided with a PMMA layer, the PMMA layer and the touch metal wire layer are adhered through the third OCA adhesive layer, and the PMMA layer and the upper substrate glass are adhered through a fourth OCA adhesive layer.
[0008] Compared with the prior art, the utility model has the advantages that:
[0009] 1. The utility model discloses a touch layer is integrated on the polarizing plate through the OCA adhesive layer, so that the polarizing plate adds the touch effect under the function attribute of itself, reduces the overall thickness, simplifies the manufacturing process, and effectively reduces the production cost.
[0010] 2. The PMMA layer is arranged on one side of the touch metal wire layer and adhered with the touch metal wire layer and the upper substrate glass through the OCA adhesive layer, which can enhance the stability of the structure and prevent interlayer peeling. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 The first ONCELL no Cover Glass touch solution under the polarizing plate;
[0012] Figure 2 The second ONCELL no Cover Glass touch solution under the polarizing plate.
[0013] In the figure: 1-front polarizing plate, 2-upper substrate glass, 3-color filter, 4-liquid crystal layer, 5-lower substrate glass, 6-rear polarizing plate, 7-OCA adhesive layer, 8-touch metal wire layer, 9-PSA adhesive layer, 10-PMMA layer, 11-thin film transistor layer, 41-liquid crystal, 42-ITO layer, 71-first OCA adhesive layer, 72-second OCA adhesive layer, 73-third OCA adhesive layer, 74-fourth OCA adhesive layer. DETAILED DESCRIPTION
[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0016] Example 1:
[0017] like Figure 1 The polarizer with a touch function shown in the figure includes a front polarizer 1. An upper glass substrate 2 is provided on one side of the front polarizer 1. A color filter 3 is connected to the lower side of the upper glass substrate 2. A liquid crystal layer 4 is connected to the lower side of the color filter 3. A lower glass substrate 5 is connected to the lower side of the liquid crystal layer 4. A rear polarizer 6 is connected to the lower side of the lower glass substrate 5. An OCA adhesive layer 7 is adhered to the front polarizer 1, and a touch metal wire layer 8 is adhered to the OCA adhesive layer 7.
[0018] The front polarizer 1 is bonded with an OCA adhesive layer 7, which includes a first OCA adhesive layer 71 bonded to the underside of the front polarizer 1. A touch metal wire layer 8 is bonded to the first OCA adhesive layer 71. The touch metal wire layer 8 is bonded to the upper glass substrate 2 via a second OCA adhesive layer 72. By directly disposing the touch metal wire layer 8 on the front polarizer 1 using the OCA adhesive layer, the polarizer not only retains its original functional properties but also adds touch functionality, thereby reducing the overall thickness and production cost.
[0019] Example 2:
[0020] like Figure 2 The polarizer with a touch function shown in the figure includes a front polarizer 1. An upper glass substrate 2 is provided on one side of the front polarizer 1. A color filter 3 is connected to the lower side of the upper glass substrate 2. A liquid crystal layer 4 is connected to the lower side of the color filter 3. A lower glass substrate 5 is connected to the lower side of the liquid crystal layer 4. A rear polarizer 6 is connected to the lower side of the lower glass substrate 5. An OCA adhesive layer 7 is adhered to the front polarizer 1, and a touch metal wire layer 8 is adhered to the OCA adhesive layer 7.
[0021] The OCA adhesive layer 7 is adhered to the front polarizer 1, the OCA adhesive layer 7 comprises a third OCA adhesive layer 73 adhered to the lower side of the front polarizer 1, the third OCA adhesive layer 73 is adhered with the touch metal wire layer 8, the touch metal wire layer 8 is further adhered with the front polarizer 1 through the PSA adhesive layer 9, one side of the touch metal wire layer 8 is provided with a PMMA layer 10, the PMMA layer 10 is adhered with the touch metal wire layer 8 through the third OCA adhesive layer 73, and the PMMA layer 10 is adhered with the upper substrate glass 2 through a fourth OCA adhesive layer 74;
[0022] The PSA adhesive can form firm adhesion when slight pressure is applied, and the PSA adhesive can be removed without leaving residue. Figure 2 In the embodiment, the PSA adhesive layer 9 is used to adhere the front polarizer 1 and the touch metal wire layer 8, which can ensure that the two layers are tightly combined and prevent separation between the layers, and compared with other adhesion methods, the use of the PSA can simplify the structure, more quickly complete the assembly of components, reduce production time and cost, and improve production efficiency; the PMMA layer 10 is arranged between the touch metal wire layer 8 and the upper substrate glass 2 to enhance the structure; the optical adhesive used is not limited to the PSA adhesive, and other liquid optical adhesives, such as LOCA liquid optical adhesive, can also be used.
[0023] The difference from the embodiment 1 is that the PSA adhesive layer 9 and the PMMA layer 10 are used as adhesion and reinforcing materials, and the PMMA layer 10 is introduced in the embodiment to enhance the structure and ensure the touch performance, which helps to enhance the strength and stability of the overall structure and reduce damage caused by external force. Figure 2 The PMMA layer 10 is introduced in the embodiment to enhance the structure and ensure the touch performance, which helps to enhance the strength and stability of the overall structure and reduce damage caused by external force.
[0024] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be encompassed by the present application. Any reference signs in the claims should not be considered as limiting the claims involved.
[0025] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A polarizer with a touch function, comprising a front polarizer (1), an upper substrate glass (2) provided on one side of the front polarizer (1), a color filter (3) connected to the lower side of the upper substrate glass (2), a liquid crystal layer (4) connected to the lower side of the color filter (3), a lower substrate glass (5) connected to the lower side of the liquid crystal layer (4), a rear polarizer (6) connected to the lower side of the lower substrate glass (5), and characterized in that: An OCA adhesive layer (7) is adhered to the front polarizer (1), and a touch metal wire layer (8) is adhered to the OCA adhesive layer (7).
2. The polarizer with touch function according to claim 1, wherein: The OCA adhesive layer (7) is adhered to the front polarizer (1), and the OCA adhesive layer (7) includes a first OCA adhesive layer (71) adhered to the lower side of the front polarizer (1), the touch metal wire layer (8) is adhered to the first OCA adhesive layer (71), and the touch metal wire layer (8) is adhered to the upper substrate glass (2) via a second OCA adhesive layer (72).
3. The polarizer with touch function according to claim 1, wherein: The OCA adhesive layer (7) is adhered to the front polarizer (1), and the OCA adhesive layer (7) includes a third OCA adhesive layer (73) adhered to the lower side of the front polarizer (1); the touch metal wire layer (8) is adhered to the third OCA adhesive layer (73); the touch metal wire layer (8) and the front polarizer (1) are also adhered via a PSA adhesive layer (9); a PMMA layer (10) is provided on one side of the touch metal wire layer (8); the PMMA layer (10) and the touch metal wire layer (8) are adhered via the third OCA adhesive layer (73); and the PMMA layer (10) and the upper substrate glass (2) are adhered via a fourth OCA adhesive layer (74).