Capacitive touch display frame structure

Abstract

The utility model relates to a capacitive touch display frame structure, which belongs to the technical field of display panels and comprises a back plate, an adhesive tape and a TOC (total organic carbon) component, and the rear side wall of the back plate is connected with the adhesive tape by arranging connecting screws. The backlight module has the beneficial effects that the back plate, the adhesive tapes and the TOC assembly are arranged, VHB adhesive tapes are firstly adhered to the upper and lower adhesive tapes, then the backlight is adhered to the platform, the upper and lower adhesive tapes are sequentially placed in the backlight module according to positions, and then the adhesive tapes are connected with the backlight module through screws, so that the backlight module can be conveniently assembled and disassembled. The method comprises the steps that firstly, a ground side sectional material and a ground side adhesive tape are locked together, after locking, the ground side sectional material and the ground side adhesive tape are locked and attached to a backlight module, then all the backlight module locked with the adhesive tape is horizontally placed on a pressing platform, a release film of a VHB adhesive tape is pre-torn by a section, subsequent tearing is facilitated, TOC is placed in the backlight module, and after gaps of the four edges are confirmed, the backlight module is fixed to the pressing platform. And after the press fit is completed, the subsequent assembly can be carried out.

Description

A bezel structure for a capacitive touch display Technical Field

[0001] This utility model relates to the field of display panel technology, specifically to a frame structure for a capacitive touch display. Background Technology

[0002] Influenced by consumer display devices, narrow bezels are gradually becoming the mainstream trend for large-size capacitive touch devices. However, the current aluminum bezel solution makes it difficult to narrow the bezel overall. Moreover, due to the limitations of the capacitive screen structure, the adhesive strip and outer frame need to be disassembled and reassembled to meet the process requirements. The disassembly solution increases the variety of parts. From a design perspective, it is an excellent design to achieve these functions with the simplest structure while ensuring that the functionality and assembly are not problematic.

[0003] For factories, each additional part added to the same product increases management costs. For the production department, each additional part increases the workload of assembly workers, thereby increasing process costs. Moreover, each additional part increases the error rate of assembly workers. In the current fiercely competitive market environment, controlling product costs is one of the main means to improve the competitiveness of one's own products.

[0004] For aluminum frames, the simpler the cross-section mold, the lower the mold opening cost. Fewer features and simpler surface treatment result in lower unit prices for the parts. Regarding the surface treatment of aluminum frames alone, conventional surface treatment processes, such as cleaning, sandblasting, anodizing, cleaning again, and coating, involve a series of steps.

[0005] Compared to the aluminum frame that has just been machined by CNC, the cost will increase by 20%. Therefore, in order to address the two issues of narrow bezel and cost control, our company has developed a bezel solution with no aluminum frame on three sides (around 100mm). Summary of the Invention

[0006] To address the problems mentioned in the background art, this utility model provides a bezel structure for a capacitive touch display, comprising a back plate, a frame, adhesive strips, and a TOC component. This structure addresses the issue that for aluminum bezels, a simpler cross-sectional mold results in lower mold opening costs, fewer features, and simpler surface treatments lead to lower unit prices. However, considering only the surface treatment of aluminum bezels, conventional processes such as cleaning, sandblasting, anodizing, cleaning again, and coating increase costs by 20% compared to a CNC-machined aluminum bezel. Therefore, this invention addresses the issues of narrow bezels and cost control.

[0007] The technical solution of this utility model is: a frame structure for a capacitive touch display, including a back plate,

[0008] The back panel is connected to the adhesive strip and TOC assembly by connecting screws. The adhesive strip is bonded with VHB tape. One side wall of the adhesive strip and the TOC assembly are attached to one side inner wall of the back panel, and the top of the TOC assembly is flush with the top of the side wall of the back panel. The adhesive frame is fixedly installed on the rear inner wall of the back panel.

[0009] Furthermore, the adhesive strip is arranged in a rectangular frame shape.

[0010] Furthermore, the connecting screw penetrates the rear side wall of the threaded plug-in back plate and the bottom wall of the adhesive strip.

[0011] Furthermore, a reflective sheet is provided inside the back plate, a diffuser plate is provided on the top of the reflective sheet, and a composite film is pasted on the top of the diffuser plate, with the adhesive frame located on the outside of the diffuser plate.

[0012] Furthermore, the TOC assembly includes a CG board, a TP board, and an OC board. The top of the sidewall of the CG board and the back panel are flush. The CG board is connected to the TP board by optical adhesive. The OC board is located at the bottom of the TP board, and the two are bonded together by optical adhesive. The top of the VHB tape is bonded to the TP board.

[0013] This utility model provides an improved frame structure for a capacitive touch display, which has the following improvements and advantages compared with the prior art:

[0014] The assembly consists of a backplate, adhesive strips, and a TOC (Total Organisation) component. First, VHB tape is applied to the top, bottom, left, and right adhesive strips. Then, the backlight is attached to the platform. The top, bottom, left, and right adhesive strips are then placed into the backlight module in their designated positions. Screws are used to connect the adhesive strips to the backlight module. Next, the ground-side profile is secured to the ground-side adhesive strip. After securing them together, they are attached to the backlight module. The backlight module, now fully secured with adhesive strips, is placed horizontally on the pressing platform. A section of the VHB tape release film is pre-torn for easy removal later. The TOC is placed into the backlight module. After confirming the gaps on all four sides, assembly and pressing are performed. After the parts are pressed together, subsequent assembly can proceed. The touch display device's bezel is formed by flipping the back panel. This method achieves a narrow bezel for the touch display device without adding any components or processes, and even eliminates the need for a finishing component. This significantly enhances the product's competitiveness. Compared to other methods on the market that involve additional disassembly or new processes for narrow bezels, this solution offers substantial improvements in both cost and assembly. It eliminates the traditional top, bottom, left, and right aluminum frames, using the back panel's flipped edges for the top and left sides, retaining only the internal adhesive strip. Removing these three aluminum frame components firstly reduces the material cost of the touch display device, and secondly, it lowers assembly costs by eliminating these three components. It allows for the use of a minimal number of parts, greatly reducing the risk of assembly errors. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 is a partial cross-sectional schematic diagram of this utility model;

[0017] Figure 2 is an enlarged structural schematic diagram of point A in Figure 1 of this utility model;

[0018] Explanation of reference numerals in the attached diagram: 1. VHB tape; 2. Adhesive strip; 3. Adhesive frame; 4. Connecting screw; 5. Backplate; 6. TOC assembly; 61. CG board; 62. TP board; 63. OC board; 7. Composite film; 8. Diffuser plate; 9. Reflective sheet. Detailed Implementation

[0019] The present invention will now be described in detail with reference to Figures 1 and 2, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are not applicable.

[0020] For example, all of them fall within the scope of protection of this utility model.

[0021] This utility model provides an improved frame structure for a capacitive touch display, as shown in Figures 1-2. It includes a back plate 5, a frame 3, an adhesive strip 2, and a TOC assembly 6. The rear side wall of the back plate 5 is connected to the adhesive strip 2 via connecting screws 4. VHB tape 1 is adhered to the adhesive strip 2. One side wall of the adhesive strip 2 and the TOC assembly 6 are attached to one inner side wall of the back plate 5, and the top of the TOC assembly 6 is flush with the top of the side wall of the back plate 5.

[0022] The adhesive frame 3 is fixedly installed on the inner rear wall of the back panel 5. The adhesive strip 2 is rectangular. The connecting screw 4 passes through the threaded connection between the inner rear wall of the back panel 5 and the bottom wall of the adhesive strip 2. With the back panel 5, adhesive strip 2 and TOC assembly 6, first, VHB tape 1 is applied to the top, bottom and left / right adhesive strips 2. Then, the backlight is applied to the platform. The top, bottom and left / right adhesive strips 2 are placed into the backlight module in sequence according to their positions. Then, the adhesive strips 2 are connected to the backlight module with screws. Then, the ground side profile is locked together with the ground side adhesive strip 2. After locking, they are locked together to the backlight module. Next, place all the backlight modules with the adhesive strips 2 locked horizontally onto the pressing platform. Pre-tear a section of the release film from the VHB tape 1 for easier removal later. Place the TOC into the backlight module, confirm the gaps on all four sides, and then assemble and press. After pressing, subsequent assembly can proceed. The touch display device's bezel is created by flanging the backplate 5. This method achieves a narrow bezel for the touch display device without increasing the component structure or manufacturing process, and even eliminates the need for a component for surface finishing. This offers a significant advantage in enhancing product competitiveness.

[0023] Compared to other solutions on the market that involve additional disassembly or the use of new processes to create narrow bezels, this solution offers significant improvements in both cost and assembly, directly eliminating the need for traditional top, bottom, left, and right aluminum frames.

[0024] Using the backplate 5 with a folded edge to create the outer frame of the touch display device around the top, retaining only the inner adhesive strip 2, eliminates three parts of the aluminum outer frame around the top. This firstly reduces the material cost of the touch display device, and secondly, it reduces assembly costs by eliminating these three parts. It can be achieved with the fewest possible parts, which greatly reduces the risk of assembly errors by personnel. The bezel width of the touch display device is narrowed from 3.4mm to 0.8mm, which greatly reduces the material and process costs of the capacitive touch device and improves the ease of assembly.

[0025] The back panel 5 has a reflective sheet 9 inside, and a diffuser plate 8 is set on top of the reflective sheet 9. A composite film 7 is attached to the top of the diffuser plate 8. The frame 3 is located on the outside of the diffuser plate 8. The diffuser plate 8 and the reflective sheet 9 improve the light distribution and enhance the display quality, while the composite film 7 enhances the stability of the display effect.

[0026] TOC component 6 includes CG board 61, TP board 62, and OC board 63. CG board 61 is flush with the top of the side wall of the back panel 5. CG board 61 is connected to TP board 62 by optical adhesive. OC board 63 is located at the bottom of TP board 62, and the two are bonded together by optical adhesive. The top of VHB tape 1 is bonded to TP board 62. TOC component 6's CG board 61, TP board 62, and OC board 63 are tightly connected by optical adhesive, ensuring consistency in touch and display effects. CG board 61 is flush with the top of the back panel 5, ensuring optical performance. The combination of TOC component 6 and optical adhesive achieves the integration of touch and display. The frame 3 further reinforces the entire structure, ensuring display stability and touch accuracy.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A frame structure for a capacitive touch display, comprising a back plate (5), a frame (3), an adhesive strip (2), and a TOC assembly (6), characterized in that: The rear side wall of the back plate (5) is connected to the adhesive strip (2) by a connecting screw (4). The adhesive strip (2) is bonded with VHB tape (1). One side wall of the adhesive strip (2) and the TOC assembly (6) are attached to one side inner wall of the back plate (5), and the top of the TOC assembly (6) is flush with the top of the side wall of the back plate (5). The adhesive frame (3) is fixedly installed on the rear inner wall of the back plate (5).

2. The bezel structure of the capacitive touch display as described in claim 1, characterized in that: The adhesive strip (2) is set in a rectangular frame shape.

3. The bezel structure of the capacitive touch display as described in claim 1, characterized in that: The connecting screw (4) penetrates the rear side wall of the threaded plug back plate (5) and the bottom wall of the adhesive strip (2).

4. The bezel structure of the capacitive touch display as described in claim 1, characterized in that: The back plate (5) is provided with a reflective sheet (9) inside, and a diffuser plate (8) is provided on the top of the reflective sheet (9). A composite film (7) is pasted on the top of the diffuser plate (8), and the frame (3) is located on the outside of the diffuser plate (8). 5.The frame structure of the capacitive touch display of claim 1, wherein: The TOC assembly (6) includes a CG board (61), a TP board (62) and an OC board (63). The top of the sidewall of the CG board (61) and the back plate (5) are flush. The CG board (61) is connected to the TP board (62) by optical adhesive. The OC board (63) is located at the bottom of the TP board (62) and the two are bonded together by optical adhesive. The top of the VHB tape (1) is bonded to the TP board (62).

Images