Structure for optimizing conductivity of TFT (Thin Film Transistor) display module

Abstract

The utility model discloses a structure for optimizing conduction of a TFT (thin film transistor) display module, which comprises a display module body, the display module body comprises a display screen and a backlight which are sequentially arranged, the display screen is plated with an ITO (indium tin oxide) film, a backlight iron frame is arranged on one side, far away from the display screen, of the backlight, and the backlight iron frame is arranged on the other side of the display screen. Edge wrapping paper used for conducting connection is arranged between the ITO film and the backlight iron frame, one end of the edge wrapping paper is pasted to the ITO film, and the other end of the edge wrapping paper is connected with the backlight iron frame. The display module has the effect of releasing static electricity on the surface of the display screen by arranging the edge covering paper to replace dotted silver paste to enable the ITO film to be in conductive connection with the backlight iron frame.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a structure for optimizing the conduction of a TFT display module. Background Art

[0002] TFT display screens are widely used in today's society and can be seen everywhere. Through the display screen, information can be expressed more intuitively and vividly. In the industrial and consumer fields, in addition to the products that generally use TFT display screens, such as monitors, telephones, handheld scanners, cameras, etc., many previously unused devices are now also beginning to use TFT display screens, such as remote controls, ovens, refrigerators, etc.

[0003] Most of the TFT displays use full-angle TFT and full-viewing angle TFT module design. Due to anti-static requirements, the TFT glass surface needs to be coated with ITO film and silver paste is applied to connect the ITO film on the TFT display to the FPC ground wire to release the static electricity on the surface of the TFT display to avoid affecting the display effect of the TFT display. However, the use of silver paste to achieve conductivity requires additional operating steps and additional silver paste materials, which increases the cost of the product. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a structure for optimizing the conduction of a TFT display module.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A structure for optimizing the conductivity of a TFT display module comprises: a display module body, wherein the display module body comprises a display screen and a backlight which are arranged in sequence, wherein the display screen is plated with an ITO film, a backlight iron frame is provided on the side of the backlight away from the display screen, and an edge wrapping paper for conductive connection is provided between the ITO film and the backlight iron frame, wherein one end of the edge wrapping paper is adhered to the ITO film, and the other end of the edge wrapping paper is connected to the backlight iron frame.

[0007] In one embodiment, the display screen includes an upper polarizer, an upper layer of glass, a lower layer of glass, and a lower polarizer arranged in sequence, and the ITO film is plated on the upper layer of glass.

[0008] In one embodiment, the edge wrapping paper is arranged in a U-shape, the middle area of ​​the edge wrapping paper is attached to the area of ​​the upper glass beyond the upper polarizer, and the periphery of the edge wrapping paper extends to the backlight iron frame.

[0009] In one embodiment, one section of the wrapping paper is a covering section and the other section is a bonding section. A portion of the covering section of the wrapping paper is bonded to the area of ​​the ITO film that exceeds the upper polarizer, and the other portion is covered to the four sides of the display module body. The bonding section is used to attach to the backlight iron frame.

[0010] In one embodiment, the binding paper includes a base layer and a conductive layer, wherein the base layer is located on a side of the binding paper away from the ITO film and the backlight iron frame, and the conductive layer is used to contact the ITO film and the backlight iron frame.

[0011] In one embodiment, the substrate layer is made of polyethylene or polyethylene terephthalate.

[0012] In one embodiment, the conductive layer is composed of conductive glue, graphene and double-sided tape arranged in sequence, the conductive glue is attached to the substrate layer, the conductive glue has conductivity, and the graphene is arranged on a side of the conductive glue away from the substrate layer.

[0013] In one embodiment, the conductive glue comprises a black acrylate-based conductive adhesive, and the conductive glue is black in color.

[0014] In one embodiment, one side of the double-sided tape is attached to a side of the graphene away from the conductive adhesive, and the other side of the double-sided tape is used to fit with the ITO film and the backlight iron frame.

[0015] In one embodiment, the display screen consists of a central display area and a non-display area arranged outside the display area, and the coverage area of ​​the edging paper is located within the non-display area.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model provides a structure for optimizing the conduction of a TFT display module by providing an edge wrapping paper instead of the operation of applying silver paste, and connects the ITO film of the upper glass of the display screen to the backlight iron frame through the edge wrapping paper to achieve conduction between the ITO film and the backlight iron frame, thereby facilitating the extraction of static electricity on the display screen surface. The design of the edge wrapping paper can quickly extract the static electricity generated on the display screen surface, dissipate the heat generated by the display screen, and have a shading effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1A schematic diagram of the structure of a display screen in a structure for optimizing the conductivity of a TFT display module provided by the utility model;

[0020] Figure 2 A schematic diagram of the front structure of a structure for optimizing the conductivity of a TFT display module provided by the utility model;

[0021] Figure 3 A schematic diagram of the side structure of a structure for optimizing the conductivity of a TFT display module provided by the utility model;

[0022] Figure 4 A schematic diagram of the back structure of a structure for optimizing the conductivity of a TFT display module provided by the utility model;

[0023] Figure 5 A schematic diagram of the stacking structure of edge wrapping paper in a structure for optimizing the conductivity of a TFT display module provided by the utility model.

[0024] Description of the drawings: 10. Display module body; 20. Display screen; 21. Upper polarizer; 22. Upper glass; 23. Lower glass; 24. Lower polarizer; 30. Backlight; 31. Backlight iron frame; 40. ITO film; 50. Binding paper; 501. Coating section; 502. Laminating section; 51. Base material layer; 52. Conductive layer; 521. Conductive adhesive; 522. Graphene; 523. Double-sided adhesive. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0026] A structure for optimizing the conductivity of a TFT display module, referring to Figure 1 , including a display module body 10, the display module body 10 includes a display screen 20 and a backlight 30 arranged in sequence, and the display screen 20 is accommodated in the backlight 30. The display screen 20 includes an upper polarizer 21, an upper glass 22, a lower glass 23 and a lower polarizer 24 arranged in sequence, and the surface of the upper glass 22 is coated with an ITO film 40, and the ITO film 40 is conductive. The size of the upper glass 22 is larger than that of the upper polarizer 21, so that the ITO film 40 coated on the upper glass 22 exceeds the range of the upper polarizer 21 and is exposed to the outside.

[0027] Reference Figure 2 The side of the backlight 30 away from the display screen 20 is a backlight iron frame 31 , and the ITO film 40 on the upper glass 22 needs to be conductively connected to the backlight iron frame 31 , so as to facilitate the release of static electricity on the upper surface of the display screen 20 .

[0028] Reference Figure 2 and Figure 3A wrapping paper 50 for conductive connection is provided between the ITO film 40 and the backlight iron frame 31. One end of the wrapping paper 50 is attached to the ITO film 40 and conductively connected to the ITO film 40. The other end of the wrapping paper 50 is connected to the backlight iron frame 31 to achieve grounding. The wrapping paper 50 is arranged in a square shape. The middle area of ​​the wrapping paper 50 is attached to the area of ​​the upper glass 22 beyond the upper polarizer 21. The periphery of the wrapping paper 50 extends to the backlight iron frame 31.

[0029] Reference Figure 2-4 , one section of the wrapping paper 50 is a wrapping section 501, and the other section is a bonding section 502. A portion of the wrapping section 501 of the wrapping paper 50 is bonded to the area of ​​the ITO film 40 beyond the upper polarizer 21, and the other portion is bonded to the periphery of the four sides of the display module body 10, that is, the periphery of the backlight 30. The wrapping section 501 of the wrapping paper 50 serves to attach the ITO film 40 and coat the periphery of the display module body 10, while the bonding section 502 is used to attach to the backlight iron frame 31, so that the ITO film 40 of the upper glass 22 is connected to the backlight iron frame 31 through the wrapping paper 50, thereby achieving conduction. After the display module body 10 is assembled with the casing, the backlight iron frame 31 will be connected to the ground wire of the casing to facilitate the release of static electricity. The static electricity on the surface of the display screen 20 can be transmitted to the backlight iron frame 31 through the ITO film 40 of the upper glass 22 and the edging paper 50, and released to the ground wire of the casing, thereby avoiding affecting the display of the display screen 20.

[0030] Reference Figure 5 The edging paper 50 includes a substrate layer 51 and a conductive layer 52. The substrate layer 51 is located on the side of the edging paper 50 away from the ITO film 40 and the backlight iron frame 31. The conductive layer 52 is used to contact the ITO film 40 and the backlight iron frame 31 to achieve conductive connection between the edging paper 50 and the ITO film 40 and the backlight iron frame 31.

[0031] Further, refer to Figure 5 , the base material layer 51 is made of polyethylene or polyethylene terephthalate.

[0032] Further, refer to Figure 5, the conductive layer 52 is composed of a conductive glue 521, a graphene 522 and a double-sided adhesive 523 arranged in sequence, the conductive glue 521 is bonded to the substrate layer 51, the conductive glue 521 includes a black acrylate-based conductive adhesive, and the conductive glue 521 is set in black, which can play a shading effect. The graphene 522 is arranged on the side of the conductive glue 521 away from the substrate layer 51. The graphene 522 has good electrical conductivity and thermal conductivity, which can enhance the electrical conductivity and heat dissipation performance of the edge paper 50. One side of the double-sided adhesive 523 is attached to the side of the graphene 522 away from the conductive glue 521, and the other side of the double-sided adhesive 523 is used to bond with the ITO film 40 and the backlight iron frame 31. The multi-layer arrangement of the conductive layer 52 makes the edge paper 50 have good electrical conductivity, heat dissipation and shading properties, which can quickly guide the static electricity generated on the surface of the display screen 20, while dissipating the heat generated by the display screen 20 and having a shading effect.

[0033] Reference Figure 2 The display screen 20 is composed of a display area in the middle and a non-display area arranged outside the display area. The coverage area of ​​the edging paper 50 is located in the non-display area, so as not to affect the normal display function of the display screen 20.

[0034] Reference Figure 2-4 The conductive structure replaces the silver paste by setting the edge paper 50, and connects the ITO film 40 of the upper glass 22 of the display screen 20 to the backlight iron frame 31 through the edge paper 50, so as to achieve the conduction between the ITO film 40 and the backlight iron frame 31, thereby facilitating the static electricity discharge from the surface of the display screen 20. The design of the edge paper 50 can quickly discharge the static electricity generated on the surface of the display screen 20, dissipate the heat generated by the display screen 20, and have a light shielding effect.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A structure for optimizing the conductivity of a TFT display module, characterized in that: include: A display module body (10), the display module body (10) comprising a display screen (20) and a backlight (30) arranged in sequence, the display screen (20) being plated with an ITO film (40), the side of the backlight (30) away from the display screen (20) being a backlight iron frame (31), an edge wrapping paper (50) for conductive connection being arranged between the ITO film (40) and the backlight iron frame (31), one end of the edge wrapping paper (50) being adhered to the ITO film (40), and the other end of the edge wrapping paper (50) being connected to the backlight iron frame (31).

2. The structure for optimizing the conductivity of a TFT display module according to claim 1, characterized in that: The display screen (20) comprises an upper polarizer (21), an upper layer of glass (22), a lower layer of glass (23) and a lower polarizer (24) which are arranged in sequence, and the ITO film (40) is plated on the upper layer of glass (22).

3. The structure for optimizing the conductivity of a TFT display module according to claim 2, characterized in that: The edge wrapping paper (50) is arranged in a U-shape, the middle area of ​​the edge wrapping paper (50) is attached to the area of ​​the upper glass (22) beyond the upper polarizer (21), and the periphery of the edge wrapping paper (50) extends to the backlight iron frame (31).

4. The structure for optimizing the conductivity of a TFT display module according to claim 3, characterized in that: One section of the wrapping paper (50) is a wrapping section (501), and the other section is a bonding section (502). A portion of the wrapping section (501) of the wrapping paper (50) is bonded to the area of ​​the ITO film (40) that exceeds the upper polarizer (21), and another portion is wrapped around the four sides of the display module body (10). The bonding section (502) is used to be attached to the backlight iron frame (31).

5. The structure for optimizing the conductivity of a TFT display module according to claim 4, characterized in that: The edge wrapping paper (50) comprises a base material layer (51) and a conductive layer (52), wherein the base material layer (51) is located on a side of the edge wrapping paper (50) away from the ITO film (40) and the backlight iron frame (31), and the conductive layer (52) is used to contact the ITO film (40) and the backlight iron frame (31).

6. The structure for optimizing the conductivity of a TFT display module according to claim 5, characterized in that: The substrate layer (51) is made of polyethylene or polyethylene terephthalate.

7. The structure for optimizing the conductivity of a TFT display module according to claim 6, characterized in that: The conductive layer (52) is composed of a conductive adhesive (521), graphene (522) and a double-sided adhesive (523) which are arranged in sequence; the conductive adhesive (521) is bonded to the substrate layer (51); the conductive adhesive (521) has electrical conductivity; and the graphene (522) is arranged on a side of the conductive adhesive (521) away from the substrate layer (51).

8. The structure for optimizing the conductivity of a TFT display module according to claim 7, characterized in that: The conductive glue (521) comprises a black acrylate-based conductive adhesive, and the conductive glue (521) is black in color.

9. The structure for optimizing the conductivity of a TFT display module according to claim 8, characterized in that: One side of the double-sided adhesive (523) is attached to a side of the graphene (522) away from the conductive adhesive (521), and the other side of the double-sided adhesive (523) is used to adhere to the ITO film (40) and the backlight iron frame (31).

10. The structure for optimizing the conductivity of a TFT display module according to claim 3, characterized in that: The display screen (20) consists of a central display area and a non-display area arranged outside the display area, and the coverage area of ​​the edge wrapping paper (50) is located within the non-display area.

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