Touch display module

Abstract

The utility model belongs to touch -control display technical field, concretely is a kind of touch -control display module, at least includes: touch module: the touch module is flexible touch module, including upper touch electrode and lower touch electrode;The lower touch electrode is integrated in display module, located display module upper polaroid upper surface, upper polaroid lower surface or color filter upper surface;Upper touch electrode periphery is provided with black frame, and the black frame is located upper touch electrode upper surface or lower surface;The touch module contains FPC, and the touch chip and peripheral circuit of the touch module are located on FPC, or touch chip and peripheral circuit are located on PCB board, while FPC is connected with PCB board;First laminating adhesive: for laminating upper touch electrode and display module;Display module. The utility model has simple structure, low process difficulty, high production efficiency, and can reach the requirement of traditional On-Cell structure touch light and thin.

Description

Technical Field

[0001] This utility model belongs to the field of touch display technology, specifically a touch display module. Background Technology

[0002] As electronic devices continue to develop and become more widespread, touch modules, as key components for human-computer interaction, have received much attention for performance and structural optimization.

[0003] Traditional touch module structures often have limitations. For example, early resistive touch modules, while relatively simple in structure, suffered from limited resolution, low touch accuracy, and susceptibility to wear, making it difficult to meet the requirements of modern electronic devices for high-definition, sensitive touch, and durability. Capacitive touch modules subsequently emerged, utilizing the capacitance changes between the human body and electrodes to achieve touch sensing. They offer better touch sensitivity and durability. However, their multi-layered design results in a relatively thick overall module, posing a challenge for thinner and lighter electronic devices (such as high-end smartphones and tablets) in terms of space occupation and potential impact on the overall device's slimness.

[0004] Therefore, there is an urgent need in this field for an innovative touch display module structure that can overcome the inherent limitations of the above-mentioned technical routes and achieve breakthroughs in the thickness and weight of touch display modules without sacrificing performance, reliability and cost-effectiveness, so as to meet the needs of next-generation consumer electronics products. Utility Model Content

[0005] This utility model provides a touch display module that can adopt a zero-bonding cover plate, frame-bonded cover plate, or cover plate-free solution. It has the advantages of low process difficulty and high production efficiency, while achieving the requirements of thin and light touch screens based on traditional On-Cell structure.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A touch display module, comprising at least: Touch module: The touch module is a flexible touch module, including an upper touch electrode and a lower touch electrode; the lower touch electrode is integrated into the display module and is located on the upper surface of the upper polarizer, the lower surface of the upper polarizer, or the upper surface of the color filter of the display module; a black border is provided around the upper touch electrode, and the black border is located on the upper or lower surface of the upper touch electrode; the touch module includes an FPC, and the touch chip and peripheral circuit of the touch module are located on the FPC, or the touch chip and peripheral circuit are located on the PCB board, and the FPC is connected to the PCB board; First bonding adhesive: used to bond the upper touch electrodes and display module; Display module.

[0007] Preferably, the touch module includes a cover plate and a second adhesive for bonding the cover plate to the upper touch electrode. The cover plate is either a flexible cover plate or a rigid cover plate. Preferably, the cover plate is a flexible cover plate, using an AG base film or a hardened base film, with a hardness of at least 3H.

[0008] Preferably, a black border is provided around the cover plate, and the black border is provided on the upper or lower surface of the cover plate.

[0009] Preferably, the black border is formed by printing with black ink or by pasting with black adhesive material. The width of the black border is 0.1-40mm, the thickness of the black border formed by black ink does not exceed 30μm, and the thickness of the black border formed by black adhesive material does not exceed 100μm.

[0010] Preferably, the total thickness of the upper touch electrode and the first adhesive does not exceed 0.65 mm.

[0011] Preferably, the upper touch electrode includes an upper touch electrode substrate and an upper touch electrode touch function layer, wherein the upper touch electrode touch function layer is disposed on the upper surface or the lower surface of the upper touch electrode substrate; when the upper touch electrode touch function layer is disposed on the upper surface of the upper touch electrode substrate, the touch module further includes a cover plate and a second adhesive for bonding the cover plate to the upper touch electrode.

[0012] Preferably, the upper touch electrode substrate is a functionalized base film, and the functionalization method includes one or more of anti-glare, anti-fingerprint, anti-reflection, hardening, and anti-reflection. The functionalized layer of the functionalized base film is located on the non-conductive surface of the upper touch electrode substrate, and its hardness is at least 1H.

[0013] Preferably, the flexible cover plate is made of a functionalized film, and the functionalization method includes one or more of the following: anti-glare, anti-fingerprint, anti-reflection, hardening, and anti-reflection. The functionalized layer of the functionalized film is located on the upper surface of the flexible cover plate.

[0014] Preferably, the size of the touch display module is 1-150 inches.

[0015] The touch display module of this utility model adopts a coverless design, which reduces the use of one cover plate and can effectively reduce the thickness of the touch display module. At the same time, the lower touch electrode is integrated into the display module, which further effectively reduces the thickness and weight of the touch display module.

[0016] In this invention, the non-conductive surface refers to the surface opposite the touch function layer of the touch electrode.

[0017] In this invention, the functionalized films used for the upper touch electrode substrate and the flexible cover plate are both flexible films. The materials used in their manufacture include one of polyester (PET), cyclic olefin polymer (COP), colorless polyimide (CPI), polypropylene (PP), polyethylene (PE), and triacetate cellulose (TAC). Optionally, the functionalized film includes a post-processing base film. The post-processing methods include, but are not limited to, one or more of anti-reflective treatment, anti-reflective treatment, hardening treatment, and anti-glare treatment. The thickness of the base film is 10-300 μm.

[0018] Touch display modules aim to integrate the advantages of traditional structures while overcoming their shortcomings, such as greater thickness, higher cost, or room for improvement in touch accuracy. Through innovative structural layouts and manufacturing processes, they achieve efficient and precise touch functionality within a more compact structure. Manufacturing processes can utilize semiconductor manufacturing technology, thin-film deposition technology, and photolithography technology.

[0019] The adhesive used in this invention can be OCA optical adhesive, etc. The system connection of a touch display module typically relies on an FPC (flexible printed circuit board). One end of the FPC is bonded to the touch sensor traces using anisotropic conductive adhesive (ACF), and the other end is connected to a printed circuit board (PCB). This FPC and PCB setup achieves higher space utilization, better structural stability, and lower overall cost while ensuring module performance and reliability.

[0020] Compared with the prior art, the technical effects of this utility model are as follows: 1. Compared with traditional touch modules, this utility model can effectively reduce the overall thickness of the module. This greatly saves internal space and helps the device achieve a thinner and lighter structural design while maintaining its original functions.

[0021] 2. This utility model can detect the touch position more accurately, and the positioning error of the touch coordinate can be controlled within a very small range, effectively avoiding misoperation and providing users with a smoother and more accurate touch display interaction experience.

[0022] 3. This utility model has a simple structure. By simplifying some manufacturing processes and optimizing material usage, the production cost of the module can be reduced. While ensuring the quality of touch function, the cost can be effectively controlled, thereby enhancing the market competitiveness of the product.

[0023] 4. This utility model reduces the obstruction and interference of display light, improves the light transmittance of the screen, enhances the uniformity of display brightness and contrast, and improves the user's visual experience when viewing the screen.

[0024] 5. This utility model innovatively utilizes a black border pattern design, which greatly enhances the light-blocking effect and more effectively covers the edge lines of the touch module. Attached Figure Description

[0025] In the accompanying drawings, the same reference numerals represent the same or similar components. For ease of understanding, some components in the drawings are infinitely enlarged. The specific shapes in the drawings are unrelated to the actual shapes of the components and are only for identification and explanation. Obviously, those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] Figure 1 This is a schematic diagram of the stacked structure of the touch display module according to an embodiment of the present invention; Figure 2 This is a schematic diagram of another touch display module stacked structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of another touch display module stacked structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the stacked structure of a touch display module according to another embodiment of the present invention; Figure 5 This is a schematic diagram of the stacked structure of a touch display module according to another embodiment of the present invention; Figure 6 A schematic diagram showing the black border around the upper touch electrode of this utility model; Figure 7 A schematic diagram showing the black border around the cover plate of this utility model; Figure 8 This utility model's touch module includes an FPC, and the touch chip and its peripheral circuits of the touch module are located on the FPC. Figure 9 This is a schematic diagram showing the touch chip and its peripheral circuits located on a PCB board, with the FPC connected to the PCB board.

[0027] Figure label: 100 is the touch module stacked structure; 101 is the FPC; 102 is the PCB board; 110 is the upper touch electrode; 111 is the upper touch electrode substrate; 112 is the upper touch electrode touch function layer; 113 is the upper touch electrode functionalization layer; 114 is the black border; 122 is the lower touch electrode; 130 is the second adhesive; 140 is the cover plate; 141 is the cover plate substrate; 142 is the cover plate functionalization layer; 143 is the black border; 200 is the first adhesive; 300 is the display module; 301 is the stacked structure of the display module's other components besides the components shown; 311 is the upper polarizer of the display module; 321 is the color filter of the display module. Detailed Implementation

[0028] The following are examples of embodiments of this utility model. Those skilled in the art should understand that the listed embodiments are only some embodiments of this utility model and should not be regarded as specific limitations on this utility model.

[0029] Example 1 The touch display module described in this embodiment includes: Touch module: The touch module is a flexible touch module, including an upper touch electrode and a lower touch electrode; the upper touch electrode includes an upper touch electrode substrate, an upper touch electrode touch function layer, and may also include an upper touch electrode functionalization layer; the upper touch electrode substrate adopts an anti-glare, anti-reflection, anti-fingerprint, hardened base film or a combination thereof, and its hardness is at least 1H; the lower touch electrode is integrated into the display module and is located on the upper surface of the upper polarizer, the lower surface of the upper polarizer, or the upper surface of the color filter of the display module; A black border 114 is provided around the upper touch electrode 110, and the black border 114 is located on the upper surface or the lower surface of the upper touch electrode 110 (e.g., ...). Figure 6 (as shown) The touch module includes an FPC 101, and the touch chip and its peripheral circuitry of the touch module are located on the FPC 101 (e.g., Figure 8 (As shown), or the touch chip and its peripheral circuitry are located on PCB board 102, while FPC 101 is connected to PCB board 102 (as shown). Figure 9 (as shown) First bonding adhesive: used to bond the upper touch electrodes and display module; Display module.

[0030] like Figure 1 The diagram shows a schematic of the stacked structure of the touch display module in this embodiment. The stacked structure 100 includes, from top to bottom, an upper touch electrode functional layer 113, an upper touch electrode substrate 111, an upper touch electrode touch function layer 112, a first adhesive 200, a lower touch electrode 122, an upper polarizer 311 for the display module, and other component stacked structures 301 of the display module excluding the upper polarizer. Specifically, the upper touch electrode functional layer 113, the upper touch electrode substrate 111, and the upper touch electrode touch function layer 112 constitute the upper touch electrode 110, and the upper polarizer 311 and other component stacked structures 301 of the display module excluding the upper polarizer constitute the display module 300. The upper touch electrode touch function layer 112 is located on the lower surface of the upper touch electrode substrate 111, the upper touch electrode functional layer 113 is located on the upper surface of the upper touch electrode substrate 111, and the lower touch electrode 122 is located on the upper surface of the upper polarizer 311 of the display module.

[0031] Or, such as Figure 2As shown, the touch display module stacked structure 100 includes, from top to bottom, an upper touch electrode functional layer 113, an upper touch electrode substrate 111, an upper touch electrode touch function layer 112, a first adhesive 200, an upper polarizer 311 of the display module, a lower touch electrode 122, and other components of the display module stacked structure 301 excluding the upper polarizer. The upper touch electrode touch function layer 112 is located on the lower surface of the upper touch electrode substrate 111, the upper touch electrode functional layer 113 is located on the upper surface of the upper touch electrode substrate 111, and the lower touch electrode 122 is located on the lower surface of the upper polarizer 311 of the display module.

[0032] Or, such as Figure 3 As shown, the touch display module stacked structure 100 includes, from top to bottom, an upper touch electrode functional layer 113, an upper touch electrode substrate 111, an upper touch electrode touch function layer 112, a first adhesive 200, an upper polarizer 311, a lower touch electrode 122, a color filter 321, and other components of the display module stacked structure 301 excluding the upper polarizer and the color filter. The upper touch electrode touch function layer 112 is located on the lower surface of the upper touch electrode substrate 111, the upper touch electrode functional layer 113 is located on the upper surface of the upper touch electrode substrate 111, and the lower touch electrode 122 is located on the upper surface of the color filter 321.

[0033] The total thickness of the touch module and the first adhesive does not exceed 0.65 mm.

[0034] The other components of the display module, excluding the upper polarizer, can be layered structures such as a color filter, liquid crystal layer, thin film transistor layer, and lower polarizer, which are required for the display module.

[0035] The black border is formed by printing with black ink or by pasting with black adhesive material. The width of the black border is 0.1-40mm. The thickness of the black border formed by black ink does not exceed 30μm, and the thickness of the black border formed by black adhesive material does not exceed 100μm.

[0036] The upper touch electrode substrate adopts a functionalized base film. The functionalization of the base film includes one or more of the following: anti-glare, anti-fingerprint, anti-reflection, hardening, and anti-reflection. Its functionalized layer is located on the non-conductive surface of the substrate.

[0037] The touch display module has a size of 1-150 inches.

[0038] Example 2 The touch display module described in this embodiment includes: Cover plate 140: A black border 143 is provided around the cover plate, and the black border 143 is located on the upper or lower surface of the cover plate 140 (e.g., Figure 7 (as shown) Second adhesive: used to bond the cover plate and the upper touch electrode; Touch module: The touch module is a flexible touch module, including an upper touch electrode and a lower touch electrode; the upper touch electrode includes an upper touch electrode substrate, an upper touch electrode touch functional layer, and may also include an upper touch electrode functionalization layer; the lower touch electrode is located on the upper surface of the upper polarizer, the lower surface of the upper polarizer, or the upper surface of the color filter of the display module; the touch module includes an FPC 101, and the touch chip and its peripheral circuits of the touch module are located on the FPC 101 (e.g., Figure 8 (As shown), or the touch chip and its peripheral circuitry are located on PCB board 102, while FPC 101 is connected to PCB board 102 (as shown). Figure 9 (as shown) First bonding adhesive: used to bond the upper touch electrodes and display module; Display module.

[0039] like Figure 4 The diagram shown is a schematic of the stacked structure of the touch display module in this embodiment. The stacked structure 100 includes, from top to bottom, a cover plate functional layer 142, a cover plate substrate 141, a second adhesive 130, an upper touch electrode substrate 111, an upper touch electrode touch functional layer 112, a first adhesive 200, and a display module 300. The cover plate functional layer 142 and the cover plate substrate 141 together form the cover plate 140; the upper touch electrode substrate 111 and the upper touch electrode touch functional layer 112 together form the upper touch electrode 110; the lower touch electrode is located on the upper surface of the upper polarizer, the lower surface of the upper polarizer, or the upper surface of the color filter in the display module 300 (not shown in this schematic, but can be referenced). Figures 1-3 The related structure. The upper touch electrode touch function layer 112 is located on the lower surface of the upper touch electrode substrate 111.

[0040] Or, such as Figure 5 As shown, the touch display module stacked structure 100 includes, from top to bottom, a cover plate functional layer 142, a cover plate substrate 141, a second adhesive 130, an upper touch electrode touch functional layer 112, an upper touch electrode substrate 111, a first adhesive 200, and a display module 300. The cover plate functional layer 142 and the cover plate substrate 141 together form the cover plate 140; the upper touch electrode substrate 111 and the upper touch electrode touch functional layer 112 together form the upper touch electrode 110; the lower touch electrode is located on the upper surface of the upper polarizer, the lower surface of the upper polarizer, or the upper surface of the color filter in the display module 300 (not shown in this schematic diagram, but can be referenced). Figures 1-3The related structure. The upper touch electrode touch function layer 112 is located on the upper surface of the upper touch electrode substrate 111.

[0041] The total thickness of the touch module and the first adhesive does not exceed 0.65 mm.

[0042] The cover plate is a flexible cover plate, using AG base film or hardened base film, with a hardness of at least 3H; the flexible cover plate uses a functionalized film, and the functionalization of the film includes one or more of the following: anti-glare, anti-fingerprint, anti-reflection, hardening, and anti-reflection, and its functionalized layer is located on the upper surface of the flexible cover plate.

[0043] The black border is formed by printing with black ink or by pasting with black adhesive material. The width of the black border is 0.1-40mm. The thickness of the black border formed by black ink does not exceed 30μm, and the thickness of the black border formed by black adhesive material does not exceed 100μm.

[0044] The touch display module has a size of 1-150 inches.

[0045] For any content not described in detail in this utility model, conventional technical knowledge in the field can be used.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A touch display module, characterized in that, At least including: Touch module: The touch module is a flexible touch module, including an upper touch electrode and a lower touch electrode; the lower touch electrode is integrated into the display module and is located on the upper surface of the upper polarizer, the lower surface of the upper polarizer, or the upper surface of the color filter of the display module; a black border is provided around the upper touch electrode, and the black border is located on the upper or lower surface of the upper touch electrode; the touch module includes an FPC, and the touch chip and peripheral circuit of the touch module are located on the FPC, or the touch chip and peripheral circuit are located on the PCB board, and the FPC is connected to the PCB board; First bonding adhesive: used to bond the upper touch electrodes and display module; Display module.

2. The touch display module according to claim 1, characterized in that, The touch module includes a cover plate and a second adhesive for bonding the cover plate to the upper touch electrode. The cover plate is either a flexible cover plate or a rigid cover plate.

3. The touch display module according to claim 2, characterized in that, The cover plate is surrounded by a black border, which is located on the upper or lower surface of the cover plate.

4. The touch display module according to claim 1 or 3, characterized in that, The black border is formed by printing with black ink or by pasting with black adhesive material. The width of the black border is 0.1-40mm. The thickness of the black border formed by black ink does not exceed 30μm, and the thickness of the black border formed by black adhesive material does not exceed 100μm.

5. The touch display module according to claim 1, characterized in that, The total thickness of the upper touch electrode and the first adhesive does not exceed 0.65 mm.

6. The touch display module according to claim 1, characterized in that, The upper touch electrode includes an upper touch electrode substrate and an upper touch electrode touch function layer. The upper touch electrode touch function layer is disposed on the upper surface or the lower surface of the upper touch electrode substrate. When the upper touch electrode touch function layer is disposed on the upper surface of the upper touch electrode substrate, the touch module also includes a cover plate and a second adhesive for bonding the cover plate to the upper touch electrode.

7. The touch display module according to claim 6, characterized in that, The upper touch electrode substrate adopts a functionalized base film, and the functionalization method includes one of anti-glare, anti-fingerprint, anti-reflection, hardening, and anti-reflection. The functionalized layer of the functionalized base film is located on the non-conductive surface of the upper touch electrode substrate.

8. The touch display module according to claim 2, characterized in that, The flexible cover plate uses a functionalized film, and the functionalization method includes one of anti-glare, anti-fingerprint, anti-reflection, hardening, and anti-reflection. The functionalized layer of the functionalized film is located on the upper surface of the flexible cover plate.

9. The touch display module according to claim 1, characterized in that, The touch display module has a size of 1-150 inches.

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