Touch screen structure

Abstract

The utility model provides a touch screen structure which comprises a visual area and a key area, a touch function layer of the visual area is a touch sensor, a touch function layer of the key area is a touch FPC (flexible printed circuit), the touch FPC comprises a touch element area, and the element area comprises a touch IC (integrated circuit); the touch FPC is connected with the touch sensor in a binding manner; the touch sensor wire is connected and conducted with the touch IC through the internal wire of the touch FPC; and the touch sensor can be connected with the complete machine mainboard through an I2C interface arranged on the touch FPC. And the touch sensor is a touch film sensor or a touch glass sensor. The touch screen further comprises a cover plate, and an OCA optical adhesive layer is arranged between the cover plate and the touch sensor in an attached mode. According to the touch screen scheme of the visual area touch sensor and the key touch FPC, the problems that the touch sensor is limited by the size, the utilization rate of large board typesetting is low, and materials are wasted are solved; the problem that under the condition of a large size, due to the design of an integral touch sensor of a visual area and a key area, the touch sensor exceeds the maximum size manufacturing capacity of equipment, and consequently goods cannot be manufactured is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of touch display, in particular to a touch screen structure. Background Art

[0002] The conventional design of the current touch screen is to design the VA display area and the key area as a whole. In this case, due to size limitations, the layout utilization rate of the large panel is low, resulting in material waste, or in the case of large size, the VA area and the key area are designed as a touch sensor as a whole, and the touch sensor exceeds the maximum size manufacturing capacity of the equipment, resulting in the inability to produce. Therefore, it is necessary to propose a method to improve the layout utilization rate of the touch sensor, reduce waste (can reduce costs) and solve the problem that some large-size touch screens cannot be produced due to exceeding the equipment capacity. Utility Model Content

[0003] The purpose of the utility model is to propose a touch screen solution with a visual area touch sensor and a button touch FPC. Specifically, the technical solution of the utility model is: a touch screen structure, including a visual area and a button area, the touch function layer of the visual area is a touch sensor, the touch function layer of the button area is a touch FPC, the touch FPC includes a touch component area, and the component area includes a touch IC; the touch FPC is bound and connected to the touch sensor; the touch sensor wiring is connected and conducted with the touch IC through the internal wiring of the touch FPC; the touch sensor can be connected to the mainboard of the whole machine through the I2C interface provided on the touch FPC.

[0004] As a preferred technical solution, the touch sensor is a touch film sensor or a touch glass sensor.

[0005] As a preferred technical solution, it also includes a cover plate, and an OCA optical adhesive layer is bonded between the cover plate and the touch sensor.

[0006] As a preferred technical solution, the thickness of the OCA optical adhesive layer is 50-100 μm.

[0007] As a preferred technical solution, the touch sensor is arranged under the cover.

[0008] As a preferred technical solution, the touch sensor also includes a glass anti-shatter layer.

[0009] As a preferred technical solution, the cover plate includes buttons, and the touch FPC is adhered to the buttons by double-sided adhesion.

[0010] As a preferred technical solution, a protective adhesive layer is provided at the lower end of the connection between the touch FPC and the touch sensor.

[0011] As a preferred technical solution, the protective adhesive layer is a black adhesive layer.

[0012] As a preferred technical solution, a reinforcing plate is provided on the back side of the component area.

[0013] The beneficial effects of the utility model are as follows: a touch screen solution of a viewing area touch sensor plus a button touch FPC is proposed, which solves the problem that the touch sensor is limited by size, the utilization rate of large-board layout is low, and material waste occurs; it solves the problem that in the case of large size, the viewing area and the button area are designed as an integrated touch sensor, and the touch sensor exceeds the maximum size manufacturing capacity of the equipment, resulting in the inability to produce goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of a front view of a touch screen structure according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of a rear view of a touch screen structure according to an embodiment of the utility model.

[0017] Explanation of the reference numerals: viewing area 1; button area 2; touch FPC 3; component area 31; I2C interface 32; reinforcement plate 33; double-sided adhesive 4; protective adhesive 5; cover plate 6; button 61; touch sensor 7. DETAILED DESCRIPTION

[0018] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of example embodiments to those skilled in the art.

[0019] In addition, described feature, structure or characteristic can be combined in the first or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application.But, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without the first or more in the specific details, or other methods, components, devices, steps etc. can be adopted.In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the present application.

[0020] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0021] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0022] It should be noted that the “plurality” mentioned in this article refers to two or more.

[0023] Example

[0024] like Figure 1-2 As shown, this embodiment proposes a touch screen structure, including a viewing area and a key area. The touch function layer of the viewing area is set as a touch sensor, and the touch function layer of the key area is set as a touch FPC. In this way, the separate settings can improve the layout utilization rate of the touch sensor large board and solve the problem that the requirements of the production cannot be met under the requirements of specific large-size products.

[0025] Preferably, the touch FPC includes a touch component area, and the component area includes a touch IC; the touch FPC is bound and connected to the touch sensor, and after the connection, the touch sensor wiring is connected to the touch IC through the internal wiring of the touch FPC. Finally, the touch sensor can be connected to the whole machine motherboard through the I2C interface provided on the touch FPC.

[0026] Preferably, the touch sensor may be a touch film sensor or a touch glass sensor. Specifically, the structural layers included in these two structures should be conceivable to those skilled in the art, and will not be elaborated here.

[0027] Furthermore, the touch screen structure also includes a cover plate, and the cover plate and the touch sensor are bonded together through an OCA optical adhesive layer. Furthermore, the touch sensor is arranged below the cover plate. The thickness of the OCA optical adhesive layer can be 50 to 100 μm.

[0028] Preferably, the touch sensor further includes a glass anti-shatter layer. By providing the synergistic effect of the glass anti-shatter layer and the OCA optical adhesive layer, the cushioning effect after the cover plate falls can be effectively improved to prevent the cover plate from breaking.

[0029] Preferably, Figure 2 As shown, the cover includes a button, and the touch FPC and the button are adhered together by double-sided adhesive.

[0030] Preferably, a protective adhesive layer is provided at the lower end of the junction between the touch FPC and the touch sensor, to prevent the touch sensor and the touch FPC from being pulled and thus affecting the function of the whole device. The protective adhesive layer is a black adhesive layer.

[0031] Furthermore, a reinforcing plate is provided on the back of the component area, and the reinforcing plate can be set as a PI reinforcing plate or a steel plate reinforcing plate.

[0032] In summary, the touch screen structure disclosed in the present application divides the viewing area and the button area into two independent parts, which are connected together through binding and wiring, thereby effectively improving the utilization rate of large-board layout and solving the difficulty in manufacturing some specific large-size products.

[0033] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A touch screen structure, characterized in that: It includes a viewing area and a button area, the touch function layer of the viewing area is a touch sensor, the touch function layer of the button area is a touch FPC, the touch FPC includes a touch component area, and the component area includes a touch IC; the touch FPC is bound and connected to the touch sensor; the touch sensor wiring is connected and conducted with the touch IC through the internal wiring of the touch FPC; the touch sensor can be connected to the whole machine mainboard through the I2C interface provided on the touch FPC.

2. A touch screen structure according to claim 1, characterized in that: The touch sensor is a touch film sensor or a touch glass sensor.

3. A touch screen structure according to claim 2, characterized in that: It also includes a cover plate, and an OCA optical adhesive layer is bonded between the cover plate and the touch sensor.

4. A touch screen structure according to claim 3, characterized in that: The thickness of the OCA optical adhesive layer is 50-100 μm.

5. The touch screen structure according to claim 3, characterized in that: The touch sensor is arranged below the cover plate.

6. A touch screen structure according to claim 3, characterized in that: The touch sensor also includes a glass anti-shatter layer.

7. The touch screen structure according to claim 3, characterized in that: The cover plate includes a button, and the touch FPC is adhered to the button by double-sided adhesion.

8. The touch screen structure according to claim 1, characterized in that: A protective adhesive layer is provided at the lower end of the connection between the touch FPC and the touch sensor.

9. A touch screen structure according to claim 8, characterized in that: The protective adhesive layer is a black adhesive layer.

10. A touch screen structure according to any one of claims 1 to 9, characterized in that: A reinforcing plate is provided on the back side of the component area.

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