Liquid crystal display panel adopting single-layer flexible printed circuit film

By introducing heat dissipation auxiliary mechanism and protective structure into the liquid crystal display panel, the heat dissipation problem of single-layer flexible printed circuit film is solved, the heat dissipation efficiency and structural stability are improved, and the normal operation and service life of the liquid crystal display panel is ensured.

CN223272762UActive Publication Date: 2025-08-26JIANGSU ZUNSEN SCI & TECH CO LTD
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Patent Information

Application Number
CN202422747509.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-08-26
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

The existing single-layer flexible printed circuit film has poor heat dissipation performance, which leads to an increase in temperature under long-term high load operation, affecting performance and life.

Method used

The heat dissipation auxiliary mechanism is adopted, including limiting blocks, connectors, insulating pads, heat dissipation fins, copper layers and graphene heat dissipation layers, which improve heat dissipation efficiency through the combination of these components and enhance structural stability through protective strips and reinforcement blocks.

Benefits of technology

It effectively reduces the temperature of the LCD panel, improves the heat dissipation effect, ensures the performance and life of the LCD panel, and enhances the stability of the structure and protection of polarizing modules and glass substrates.

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Abstract

The utility model discloses a liquid crystal display panel adopting a single-layer flexible printed circuit film, which relates to the technical field of liquid crystal display panels, and comprises a backlight module, and one side of the backlight module is fixedly connected with a polarization module. One side of the connecting piece is bonded to the glass substrate and the connecting body, heat generated when the connecting body is used can be transmitted to the connecting piece, then heat volatilization is accelerated through the heat dissipation fins, heat dissipation of the connecting body is achieved, heat dissipation assistance is conducted on the upper side and the lower side of the base material layer through the copper layer and the graphene heat dissipation layer, and heat dissipation efficiency is improved. According to the liquid crystal display panel, the protective strip is used for wrapping and protecting the edge of the polarization module and the edge of the glass substrate, the two ends of the reinforcing block are connected with the protective strip and the connecting body respectively, and therefore the heat accumulation of the base material layer can be reduced, the heat dissipation effect of the liquid crystal display panel is improved, and the performance and the service life of the liquid crystal display panel are guaranteed. And the stability of the connecting main body and the protective strip during installation can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display panels, in particular to a liquid crystal display panel using a single-layer flexible printed circuit film. Background Art

[0002] With the continuous development of the trend of lighter and more portable electronic products and the increasing demand of consumers for high-quality visual experience, single-layer flexible printed circuit film has gradually become popular due to its light, soft and bendable properties, and has broad application prospects.

[0003] For example, Chinese patent CN205910456U discloses a liquid crystal display module with double-sided windows in a single-layer FPC area, which includes an FPC body and a liquid crystal display screen. One end of the FPC body is provided with a connection area connected to the liquid crystal display screen, and the other end is provided with a gold finger connected to the mainboard. An FPC single-layer area and an FPC double-layer area are provided between the connection area and the gold finger. The FPC single-layer area includes a base layer, a copper foil layer provided on the lower surface of the base layer, a first covering film covering the lower surface of the copper foil layer, and a second covering film covering the upper surface of the base layer. A first rectangular window area is provided on the first covering film, and a second rectangular window area is provided on the second covering film. The first rectangular window area, the second rectangular window area and the left and right sides of the FPC single-layer area are spaced apart.

[0004] In the above patent, although the problem of easy tearing of the FPC single-layer bending area is solved by setting a distance between the first window area, the second window area and the FPC single-layer area bracket, the heat dissipation performance of the single-layer flexible printed circuit film is poor. Under long-term high-load operation, it will cause the temperature to rise and affect the performance and life of the liquid crystal display panel. Utility Model Content

[0005] The purpose of the present utility model is to solve the problem in the prior art that the heat dissipation performance of the single-layer flexible printed circuit film is poor, which causes the temperature to rise and affects the performance and life of the liquid crystal display panel under long-term high-load operation. A liquid crystal display panel using a single-layer flexible printed circuit film is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a liquid crystal display panel using a single-layer flexible printed circuit film, including a backlight module, one side of the backlight module is fixedly connected to a polarizing module, one side of the polarizing module is fixedly connected to a glass substrate, one side of the glass substrate is provided with a heat dissipation auxiliary mechanism, the heat dissipation auxiliary mechanism includes a limit block, a connector and an insulating pad, one side of the glass substrate is installed with a connecting body, the connecting body and one side of the glass substrate are bonded to the connector, one side of the connector is engaged with the limit block, one side of the limit block is fixedly connected to the glass substrate, and one side of the connector is fixedly connected to a heat dissipation fin, one side of the connector is overlapped with the insulating pad, an FPC body is provided on the top of the insulating pad, one side of the FPC body is fixedly connected to the connecting body, the FPC body includes a base material layer, a second adhesive layer and a graphene heat dissipation layer, one side of the insulating pad is compounded with the graphene heat dissipation layer, one side of the graphene heat dissipation layer is compounded with the second adhesive layer, and one side of the second adhesive layer is compounded with the base material layer.

[0007] Preferably, one side of the base material layer is compounded with an adhesive layer 1, and the thickness of the adhesive layer 1 is half of that of the base material layer.

[0008] Preferably, one side of the adhesive layer 1 is compounded with a copper layer, and the thickness of the copper layer is the same as that of the adhesive layer 1.

[0009] Preferably, one side of the copper layer is compounded with an insulating adhesive layer, and the thickness of the insulating adhesive layer is the same as that of the insulating pad.

[0010] Preferably, an auxiliary block is provided on one side of the connecting body, one side of the auxiliary block is fixedly connected to the glass substrate, one side of the auxiliary block is plugged with a plug-in block, and one side of the plug-in block is fixedly connected to a protective strip.

[0011] Preferably, one side of the protective strip is snap-connected with a horizontal strip, one side of the horizontal strip overlaps the glass substrate, and the other side of the protective strip is snap-connected with a reinforcement block, and the bottom of the reinforcement block is snap-connected with the connecting body.

[0012] Preferably, one side of the protective strip is connected to a polarizing module, and one side of the polarizing module is bonded to the plug-in block.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, one side of the limit block is engaged with the connector, and one side of the connector is respectively bonded to the glass substrate and the connection body. The heat generated when the connection body is in use can be transferred to the connector, and then the heat dissipation fins accelerate the volatilization of heat to achieve heat dissipation of the connection body. The copper layer and the graphene heat dissipation layer are used to assist in heat dissipation on the upper and lower sides of the substrate layer, thereby reducing heat accumulation in the substrate layer and improving the heat dissipation effect of the liquid crystal display panel, thereby ensuring the performance and life of the liquid crystal display panel.

[0015] 2. In the present invention, one side of the protective strip is fixedly connected to the plug-in block, and one side of the auxiliary block is connected to the glass substrate. One end of the plug-in block is plugged into the auxiliary block, and then the horizontal bar is engaged with the protective strip to connect the protective strips on both sides. The protective strips are used to wrap and protect the edges of the polarizing module and the glass substrate. The two ends of the reinforcement block are respectively connected to the protective strip and the connecting body, which can improve the stability of the connecting body and the protective strip during installation, improve the protection effect of the protective strip on the polarizing module and the glass substrate, and reduce the damage to the glass substrate caused by external force impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention provides a schematic diagram of the three-dimensional structure of a liquid crystal display panel using a single-layer flexible printed circuit film;

[0017] Figure 2 The utility model provides a structural schematic diagram of a reinforcement block of a liquid crystal display panel using a single-layer flexible printed circuit film;

[0018] Figure 3 The utility model provides a schematic diagram of the installation of a connector structure of a liquid crystal display panel using a single-layer flexible printed circuit film;

[0019] Figure 4 The utility model proposes a schematic diagram of the installation of a heat dissipation fin structure of a liquid crystal display panel using a single-layer flexible printed circuit film;

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the local enlarged structure at point A.

[0021] Legend: 1. Protective strip; 2. Backlight module; 3. FPC body; 301. Insulating adhesive layer; 302. Copper layer; 303. Adhesive layer 1; 304. Base material layer; 305. Adhesive layer 2; 306. Graphene heat dissipation layer; 4. Polarizing module; 5. Connector block; 6. Glass substrate; 7. Limit block; 8. Reinforcement block; 9. Connector body; 10. Connector; 11. Heat dissipation fin; 12. Insulation pad; 13. Auxiliary block; 14. Horizontal bar. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: Reference Figure 1 - Figure 5 As shown: A liquid crystal display panel using a single-layer flexible printed circuit film, including a backlight module 2, one side of the backlight module 2 is fixedly connected to a polarizing module 4, one side of the polarizing module 4 is fixedly connected to a glass substrate 6, one side of the glass substrate 6 is provided with a heat dissipation auxiliary mechanism, the heat dissipation auxiliary mechanism includes a limit block 7, a connector 10 and an insulating pad 12, one side of the glass substrate 6 is installed with a connecting body 9, the connecting body 9 and one side of the glass substrate 6 are bonded to the connector 10, one side of the connector 10 is engaged with the limit block 7, one side of the limit block 7 is fixedly connected to the glass substrate 6, and one side of the connector 10 is fixedly connected to a heat dissipation fin 11, one side of the connector 10 is overlapped with the insulating pad 12, and the top of the insulating pad 12 is provided with an FPC main body. Body 3, one side of the FPC main body 3 is fixedly connected to the connecting body 9, the FPC main body 3 includes a base material layer 304, a second adhesive layer 305 and a graphene heat dissipation layer 306, one side of the insulating pad 12 is compounded with the graphene heat dissipation layer 306, one side of the graphene heat dissipation layer 306 is compounded with the second adhesive layer 305, one side of the adhesive layer 2 305 is compounded with the base material layer 304, one side of the base material layer 304 is compounded with the adhesive layer 1 303, the thickness of the adhesive layer 1 303 is half of the base material layer 304, one side of the adhesive layer 1 303 is compounded with the copper layer 302, the thickness of the copper layer 302 is the same as that of the adhesive layer 1 303, one side of the copper layer 302 is compounded with the insulating glue layer 301, the thickness of the insulating glue layer 301 is the same as that of the insulating pad 12.

[0025] The backlight module 2 can be used to support the bottom of the polarizing module 4, and the limit block 7 can be used to reinforce the bonding between the connector 10 and the glass substrate 6 and the connecting body 9, thereby reducing the looseness of the connector 10 and achieving a stable connection between the glass substrate 6 and the connecting body 9. The heat dissipation fins 11 can increase the heat dissipation area of ​​the connector 10, thereby reducing the heat accumulation on the connecting body 9. The adhesive layer 1 303 and the adhesive layer 2 305 can respectively assist in the connection of the two sides of the substrate layer 304. The copper layer 302 and the graphene heat dissipation layer 306 can respectively conduct heat to the two sides of the substrate layer 304, thereby improving the heat dissipation effect of the substrate layer 304. The insulating glue layer 301 and the insulating pad 12 can respectively provide insulation protection for one side of the copper layer 302 and the graphene heat dissipation layer 306, thereby improving the safety of the FPC body 3 during use and facilitating the safe use of the FPC body 3 and the connecting body 9 after combination.

[0026] Example 2: Figure 1 - Figure 3As shown, an auxiliary block 13 is provided on one side of the connecting body 9, and one side of the auxiliary block 13 is fixedly connected to the glass substrate 6. A plug-in block 5 is plugged into one side of the auxiliary block 13, and a protective strip 1 is fixedly connected to one side of the plug-in block 5. A horizontal strip 14 is snap-fitted to one side of the protective strip 1, and one side of the horizontal strip 14 overlaps the glass substrate 6. A reinforcement block 8 is snap-fitted to the other side of the protective strip 1, and the bottom of the reinforcement block 8 is snap-fitted to the connecting body 9. A polarizing module 4 is overlapped on one side of the protective strip 1, and one side of the polarizing module 4 is bonded to the plug-in block 5.

[0027] The auxiliary block 13 can be used to assist in the installation of the protective strip 1 on one side of the glass substrate 6, thereby guiding the insertion of the plug-in block 5 and the auxiliary block 13. The two protective strips 1 can be used to wrap and protect the edges of the polarizing module 4 and the glass substrate 6. The horizontal bar 14 can be used to connect the two protective strips 1, thereby reinforcing the two protective strips 1 and reducing the looseness of the protective strips 1 after installation. The reinforcement block 8 can be used to connect the protective strip 1 to the connecting body 9, thereby reducing the looseness of the connecting body 9 during installation and use between the polarizing module 4 and the glass substrate 6.

[0028] The usage method and working principle of this device: First, the heat generated by the substrate layer 304 during use can be conducted to the copper layer 302 and the graphene heat dissipation layer 306 respectively. The heat conduction of the copper layer 302 and the graphene heat dissipation layer 306 can realize the heat dissipation of the substrate layer 304. A single-layer flexible printed circuit is arranged inside the substrate layer 304. One side of the connector 10 is connected to the connecting body 9. The heat on the surface of the connecting body 9 can be transferred to the connector 10. The heat dissipation fins 11 increase the heat dissipation area of ​​the connector 10, thereby accelerating the volatilization of heat, thereby ensuring the normal use of the connecting body 9 and the FPC body 3. When the entire liquid crystal display panel is in use, the protective strip 1 wraps around the polarizing module 4 and the glass substrate 6. The reinforcement block 8 is engaged with the protective strip 1 to reinforce one side of the protective strip 1. At the same time, one end of the reinforcement block 8 is engaged with the connecting body 9 to reduce the loosening of the connecting body 9 between the glass substrate 6 and the polarizing module 4.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A liquid crystal display panel using a single-layer flexible printed circuit film, comprising a backlight module (2), a polarizing module (4) fixedly connected to one side of the backlight module (2), and a glass substrate (6) fixedly connected to one side of the polarizing module (4), characterized in that: A heat dissipation auxiliary mechanism is provided on one side of the glass substrate (6), and the heat dissipation auxiliary mechanism includes a limit block (7), a connector (10) and an insulating pad (12). A connecting body (9) is installed on one side of the glass substrate (6). The connecting body (9) and one side of the glass substrate (6) are bonded to the connector (10). One side of the connector (10) is engaged with the limit block (7). One side of the limit block (7) is fixedly connected to the glass substrate (6), and one side of the connector (10) is fixedly connected to a heat dissipation fin (11). The connector (10) ) one side is overlapped with the insulating pad (12), an FPC body (3) is provided on the top of the insulating pad (12), one side of the FPC body (3) is fixedly connected to the connecting body (9), the FPC body (3) comprises a base material layer (304), a second adhesive layer (305) and a graphene heat dissipation layer (306), one side of the insulating pad (12) is compounded with the graphene heat dissipation layer (306), one side of the graphene heat dissipation layer (306) is compounded with the second adhesive layer (305), and one side of the second adhesive layer (305) is compounded with the base material layer (304).

2. The liquid crystal display panel using a single-layer flexible printed circuit film according to claim 1, wherein: One side of the base material layer (304) is compounded with an adhesive layer (303), and the thickness of the adhesive layer (303) is half of the base material layer (304).

3. The liquid crystal display panel using a single-layer flexible printed circuit film according to claim 2, wherein: One side of the adhesive layer 1 (303) is compounded with a copper layer (302), and the thickness of the copper layer (302) is the same as that of the adhesive layer 1 (303).

4. The liquid crystal display panel using a single-layer flexible printed circuit film according to claim 3, wherein: An insulating adhesive layer (301) is compounded on one side of the copper layer (302), and the thickness of the insulating adhesive layer (301) is the same as that of the insulating pad (12).

5. The liquid crystal display panel using a single-layer flexible printed circuit film according to claim 1, wherein: An auxiliary block (13) is provided on one side of the connection body (9), one side of the auxiliary block (13) is fixedly connected to the glass substrate (6), one side of the auxiliary block (13) is plugged with a plug-in block (5), and one side of the plug-in block (5) is fixedly connected to a protective strip (1).

6. The liquid crystal display panel using a single-layer flexible printed circuit film according to claim 5, wherein: One side of the protection strip (1) is snap-connected with a horizontal strip (14), one side of the horizontal strip (14) overlaps with the glass substrate (6), and the other side of the protection strip (1) is snap-connected with a reinforcement block (8), the bottom of the reinforcement block (8) is snap-connected with the connection body (9).

7. The liquid crystal display panel using a single-layer flexible printed circuit film according to claim 6, wherein: A polarizing module (4) is overlapped on one side of the protective strip (1), and one side of the polarizing module (4) is bonded to the plug-in block (5).

Citation Information

Patent Citations

  • Two -sided liquid crystal display module who windows of FPC single layer area

    CN205910456U