Display module structure

Abstract

The utility model discloses a display module structure which comprises a backlight iron frame and a display module FPC, a graphite sheet is installed on the backlight iron frame, and a first avoiding hole and a second avoiding hole are formed in the graphite sheet; a grounding exposed copper part is arranged on the display module FPC and is connected with the backlight iron frame through the second avoiding hole. According to the display module structure provided by the utility model, the first protective paper is additionally arranged on the bonding pad on the backlight FPC, the first protective paper is enlarged and exceeds the appearance of the backlight FPC, the first avoiding hole is formed in the corresponding graphite sheet, and the first protective paper is adhered to the backlight iron frame along the backlight FPC, so that the display module FPC can be fixed; and meanwhile, the graphite sheet at the corresponding position does not need to be provided with a larger avoiding hole, and compared with an existing graphite sheet, the area of the graphite sheet is smaller, so that the area of the graphite sheet is increased, and the heat dissipation effect of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of display modules, and particularly relates to a display module structure. Background Art

[0002] A display module is a device used to display various information such as text, images, and videos. With the development of electronic technology, display modules are widely used in people's lives, bringing convenience to people's lives. As the screen sizes of mobile phones and the like are getting larger and the brightness of display modules is getting higher, more LEDs need to be assembled in the backlight module of the display module, which leads to overheating of the light source in the backlight module.

[0003] Currently, the back surface of the common display module FPC111 after bending is as Figure 1 shown. In order to dissipate the heat generated during the operation of the display module in a timely manner, a graphite sheet 113 is added to the backlight iron frame 112. And as Figure 2 shown, components are installed on the front surface of the display module FPC111. As Figure 3 shown, a conductive double-sided tape 114 is usually added and pasted and fixed between the grounded copper exposed part 116 and the backlight iron frame 112 after the display module FPC111 is bent. In this way, a relief hole 115 needs to be opened in the graphite sheet 113 corresponding to the position where the conductive double-sided tape 114 is pasted, thereby reducing the heat dissipation area of the graphite sheet 113 and resulting in a reduction in the heat dissipation performance of the product. Summary of the Utility Model

[0004] Based on this, in order to solve the above technical problems, it is necessary to provide a display module structure. By enlarging the first protective paper and making it exceed the outer shape of the backlight FPC, a first relief hole is opened at the corresponding graphite sheet, and the first protective paper is pasted along the backlight FPC onto the backlight iron frame. At this time, the display module FPC can be fixed, so that the conductive double-sided tape in this area can be cancelled. At the same time, a relatively large relief hole does not need to be opened in the corresponding graphite sheet. Compared with the existing graphite sheet, the opening area is smaller, the area of the graphite sheet is increased, and the heat dissipation effect of the product is improved.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A display module structure includes:

[0007] A backlight iron frame, on which a graphite sheet is installed, and a first relief hole and a second relief hole are opened on the graphite sheet;

[0008] A display module FPC, on which a grounded copper exposed part is provided, and the grounded copper exposed part is connected to the backlight iron frame through the second relief hole;

[0009] A backlight FPC, components, a first protective paper, and a second protective paper. One end of the backlight FPC is provided with a pad and is connected to the display module FPC through the first protective paper. The components are connected to the display module FPC through the second protective paper. The first protective paper extends to the outside of the display module FPC and is adhesively fixed to the backlight iron frame through a first avoidance hole.

[0010] Further, both adjacent sides of the first protective paper extend to the outside of the display module FPC, and the first avoidance hole is an L-shaped structure.

[0011] Further, a conductive double-sided tape is adhered to the grounding copper exposed part, the other side of the conductive double-sided tape is adhesively fixed to the backlight iron frame, and the second avoidance hole has the same size as the conductive double-sided tape.

[0012] Further, the grounding copper exposed part is located at the right edge of the front side of the display module FPC, a conductive cloth is adhered to the grounding copper exposed part, the conductive cloth extends to the outside of the display module FPC and is adhesively fixed to the backlight iron frame through a second avoidance hole.

[0013] Further, the conductive cloth is a single-sided sticker.

[0014] Further, the conductive cloth extends upward to the display module FPC, and the extension distance of the conductive cloth is - millimeters.

[0015] Further, the first protective paper extends - millimeters to the outside of the display module FPC, and the width of the grounding copper exposed part is - millimeters.

[0016] Further, a cover plate, a bonding adhesive, an upper polarizer, an upper glass sheet, a lower glass sheet, a lower polarizer, and a backlight are sequentially connected inside the backlight iron frame.

[0017] Further, an auxiliary double-sided tape is adhered to the middle of the display module FPC, and the other side of the auxiliary double-sided tape is adhesively fixed to a graphite sheet.

[0018] Further, a plurality of air vents are formed in the graphite sheet, and the size of the air vents is - millimeters.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The display module structure provided by the present utility model adds a first protective paper to the pads on the backlight FPC. Since the first protective paper is enlarged and extends beyond the outer shape of the backlight FPC, a first avoidance hole is opened at the corresponding graphite sheet. The first protective paper is pasted along the backlight FPC onto the backlight iron frame. At this time, the display module FPC can be fixed, so that the double-sided adhesive for conduction in this area can be cancelled. At the same time, a relatively large avoidance hole does not need to be opened in the graphite sheet at the corresponding position, and the opening area of the graphite sheet is smaller than that of the existing one, increasing the area of the graphite sheet and improving the heat dissipation effect of the product.

[0021] The display module structure provided by the present utility model adds a grounding copper exposure part to the right side edge of the display module FPC and adds a conductive cloth above. The conductive cloth has single-sided adhesiveness. The conductive cloth is pasted onto the grounding copper exposure part of the display module FPC and extends to the second avoidance hole to bond with the backlight iron frame. The conductive cloth can conduct the grounding copper exposure part on the display module FPC and the backlight iron frame while also fixing the display module FPC, so that the double-sided adhesive for conduction on the other side can be cancelled, and at the same time, the antistatic ability of the product is not affected.

[0022] The display module structure provided by the present utility model uses a graphite sheet to accelerate the dissipation of heat generated by the backlight module. Since ventilation holes are added to the graphite sheet and the ventilation holes penetrate both sides of the graphite sheet, the graphite sheet can quickly exhaust air during pasting, thereby preventing bubbles from being generated between the graphite sheet and the backlight iron frame during the pasting process, which is beneficial to improving the yield rate of graphite sheet pasting and has a better heat dissipation effect. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the back of the existing display module structure;

[0024] Figure 2 It is a schematic diagram of the front of the existing display module structure;

[0025] Figure 3 It is a schematic diagram of the display module FPC of the existing display module structure being opened;

[0026] Figure 4 It is a schematic diagram of the enlarged first protective paper of the display module structure provided by the present utility model;

[0027] Figure 5 It is a schematic diagram of the display module FPC of the display module structure provided by the present utility model being opened;

[0028] Figure 6 It is a schematic diagram of the added conductive cloth of the display module structure provided by the present utility model;

[0029] Figure 7 It is a schematic diagram of the display module FPC of the display module structure provided by the present utility model being opened;

[0030] Figure 8 It is a right - view sectional schematic diagram of the display module structure provided by the present utility model;

[0031] Figure 9 It is a schematic diagram of the display module structure provided by the present utility model with an additional auxiliary double - sided tape.

[0032] The markings in the figure are explained as follows:

[0033] 1. Backlight iron frame; 2. Graphite sheet; 3. First avoidance hole; 4. Second avoidance hole; 5. Display module FPC; 6. Grounding copper exposure part; 7. Pad; 8. Backlight FPC; 9. Components; 10. First protective paper; 11. Second protective paper; 12. Auxiliary double - sided tape; 13. Vent hole; 101. Cover plate; 102. Bonding adhesive; 103. Upper polarizer; 104. Upper glass sheet; 105. Lower glass sheet; 106. Lower polarizer; 107. Backlight; 601. Conductive double - sided tape; 602. Conductive cloth. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] As described in the background art, the avoidance holes opened in the graphite sheet of the existing display module are relatively large, reducing the heat dissipation area of the graphite sheet and resulting in the problem of reduced heat dissipation performance of the product.

[0036] To solve this technical problem, the present utility model provides a display module structure, which does not need to open relatively large avoidance holes and improves the heat dissipation effect of the product.

[0037] Specifically, please refer to Figures 4 - 9 , the display module structure specifically includes:

[0038] Backlight iron frame 1, display module FPC 5, backlight FPC 8, components 9, first protective paper 10 and second protective paper 11. A graphite sheet 2 is installed on the backlight iron frame 1. The graphite sheet 2 is provided with a first avoidance hole 3 and a second avoidance hole 4. A ground copper exposed part 6 is provided on the display module FPC 5. The ground copper exposed part 6 is connected to the backlight iron frame 1 through the second avoidance hole 4. One end of the backlight FPC 8 is provided with a pad 7 and is connected to the display module FPC 5 through the first protective paper 10. The components 9 are connected to the display module FPC 5 through the second protective paper 11. The first protective paper 10 extends to the outside of the display module FPC 5 and is adhesively fixed to the backlight iron frame 1 through the first avoidance hole 3.

[0039] For the display module structure provided by the present utility model, by adding the first protective paper 10 on the pad 7 of the backlight FPC 8, since the first protective paper 10 is enlarged and exceeds the outer shape of the backlight FPC 8, a first avoidance hole 3 is opened at the corresponding graphite sheet 2, and the first protective paper 10 is pasted along the backlight FPC 8 to the backlight iron frame 1. At this time, the display module FPC 5 can be fixed, so that the conductive double-sided tape in this area is cancelled. At the same time, a relatively large avoidance hole does not need to be opened at the corresponding position of the graphite sheet 2. Compared with the existing graphite sheet 2, the opening area is smaller, the area of the graphite sheet 2 is increased, and the heat dissipation effect of the product is improved.

[0040] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0041] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] Please refer to Figures 1 - 3 ., a display module structure, which includes a backlight iron frame 1, a display module FPC 5, a backlight FPC 8, components 9, a first protective paper 10 and a second protective paper 11. A graphite sheet 2 is installed on the backlight iron frame 1. The graphite sheet 2 is provided with a first avoidance hole 3 and a second avoidance hole 4. A ground copper exposed part 6 is provided on the display module FPC 5. The ground copper exposed part 6 is connected to the backlight iron frame 1 through the second avoidance hole 4. One end of the backlight FPC 8 is provided with a pad 7 and is connected to the display module FPC 5 through the first protective paper 10. The components 9 are connected to the display module FPC 5 through the second protective paper 11. The first protective paper 10 extends to the outside of the display module FPC 5 and is adhesively fixed to the backlight iron frame 1 through the first avoidance hole 3.

[0044] Please refer to Figures 4 - 9 , by adding a first protective paper 10 on the pad 7 of the backlight FPC8, since the first protective paper 10 is enlarged and exceeds the outer shape of the backlight FPC8, a first avoidance hole 3 is opened at the corresponding graphite sheet 2, and the first protective paper 10 is pasted onto the backlight iron frame 1 along the backlight FPC8. At this time, the display module FPC5 can be fixed, so that the conductive double-sided tape in this area can be cancelled. At the same time, the graphite sheet 2 at the corresponding position does not need to be opened with a larger avoidance hole, and the opening area of the existing graphite sheet 2 is smaller, increasing the area of the graphite sheet 2 and improving the heat dissipation effect of the product.

[0045] Further optimize the display module structure provided in Embodiment 1. Specifically, as Figure 4 and Figure 5 shown, both adjacent sides of the first protective paper 10 extend to the outside of the display module FPC5, and the first avoidance hole 3 is an L-shaped structure; a conductive double-sided tape 601 is bonded at the grounding copper exposed part 6, and the other side of the conductive double-sided tape 601 is bonded and fixed to the backlight iron frame 1, and the second avoidance hole 4 is the same size as the conductive double-sided tape 601.

[0046] Through the above structural design, since the enlarged first protective paper 10 exceeds the outer shape of the backlight FPC8 and is an L-shaped structure, the first protective paper 10 can be more firmly pasted onto the backlight iron frame 1 along the backlight FPC8, thus preventing the display module FPC5 from detaching from the backlight iron frame 1.

[0047] Further optimize the display module structure provided in Embodiment 1 or 2. As Figure 6 and Figure 7 shown, the grounding copper exposed part 6 is located at the right edge of the front side of the display module FPC5. A conductive cloth 602 is bonded at the grounding copper exposed part 6, and the conductive cloth 602 extends to the outside of the display module FPC5 and is bonded and fixed to the backlight iron frame 1 through the second avoidance hole 4;

[0048] With such a structural design, by adding a grounding copper exposed part 6 on the right side of the display module FPC5 and adding a conductive cloth 602 above it, the conductive cloth 602 has single-sided adhesiveness. The conductive cloth 602 is pasted onto the grounding copper exposed part 6 of the display module FPC5 and extends to the second avoidance hole 4 to be bonded to the backlight iron frame 1. The conductive cloth 602 can conduct the grounding copper exposed part 6 on the display module FPC5 and the backlight iron frame 1 while also fixing the display module FPC5, so that the conductive double-sided tape on the other side can be cancelled, and at the same time, the antistatic ability of the product is not affected.

[0049] The conductive cloth 602 is a single-sided sticker, and the conductive cloth 602 extends to the upper side of the display module FPC5. The extension distance of the conductive cloth 602 is 5-6 mm; the first protective paper 10 extends 5-6 mm outside the display module FPC5, and the width of the grounding copper exposed part 6 is 5-6 mm.

[0050] Such a setting can better bond with the backlight iron frame 1. When the adhesion of the paste is small, the width can be increased. The specific width is not specifically limited again. Increasing the width can increase the adhesion, so that the phenomenon of falling off will not occur.

[0051] In the display module structure provided by the above embodiments, further optimization is carried out, such as Figure 8 and Figure 9 As shown, a cover plate 101, a bonding adhesive 102, an upper polarizer 103, an upper glass sheet 104, a lower glass sheet 105, a lower polarizer 106, and a backlight 107 are sequentially connected inside the backlight iron frame 1; an auxiliary double-sided sticker 12 is bonded to the middle of the display module FPC5, and the other side of the auxiliary double-sided sticker 12 is fixedly bonded to the graphite sheet 2, so that the display module FPC5 and the backlight iron frame 1 can be firmly bonded together; a plurality of air vents 13 are provided on the graphite sheet 2, and the size of the air vents 13 is 1-2 mm.

[0052] With such a structural design, by using the graphite sheet 2 to accelerate the dissipation of the heat generated by the backlight module, since the air vents 13 are added to the graphite sheet 2 and the air vents 13 penetrate both sides of the graphite sheet 2, the graphite sheet 2 can quickly exhaust air during pasting, so that air bubbles can be prevented from being generated between the graphite sheet 2 and the backlight iron frame 1 during the pasting process, which is beneficial to improving the yield rate of the graphite sheet 2 pasting and has a better heat dissipation effect.

[0053] The use process of the display module structure provided by the present invention is as follows:

[0054] By adding the first protective paper 10 on the pad 7 of the backlight FPC8, since the first protective paper 10 is enlarged and exceeds the outer shape of the backlight FPC8, a first avoidance hole 3 is opened at the corresponding graphite sheet 2. The first protective paper 10 is pasted onto the backlight iron frame 1 along the backlight FPC8. At this time, the display module FPC5 can be fixed, so that the double-sided adhesive for conducting electricity in this area can be cancelled. At the same time, a larger avoidance hole does not need to be opened in the graphite sheet 2 at the corresponding position. Compared with the existing graphite sheet 2, the opening area is smaller, the area of the graphite sheet 2 is increased, and the heat dissipation effect of the product is improved. By adding a grounding copper exposed part 6 on the right side edge of the display module FPC5 and adding a conductive cloth 602 above it, the conductive cloth 602 has single-sided adhesiveness. The conductive cloth 602 is pasted onto the grounding copper exposed part 6 of the display module FPC5 and extends to the second avoidance hole 4 to bond with the backlight iron frame 1. The conductive cloth 602 can conduct the grounding copper exposed part 6 on the display module FPC5 and the backlight iron frame 1, and at the same time can fix the display module FPC5, so that the double-sided adhesive for conducting electricity on the other side can be cancelled, and the antistatic ability of the product is not affected.

[0055] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all the embodiments. The preferred embodiments of the present utility model are given in the drawings, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent substitution on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. A display module structure, characterized in that: It includes: A backlight iron frame (1), wherein a graphite sheet (2) is mounted on the backlight iron frame (1), and a first avoidance hole (3) and a second avoidance hole (4) are formed on the graphite sheet (2); A display module FPC (5), wherein a grounding exposed copper portion (6) is provided on the display module FPC (5), and the grounding exposed copper portion (6) is connected to the backlight iron frame (1) via a second avoidance hole (4); A backlight FPC (8), components (9), a first protective paper (10) and a second protective paper (11); one end of the backlight FPC (8) is provided with a solder pad (7) and is connected to a display module FPC (5) via the first protective paper (10); the components (9) are connected to the display module FPC (5) via the second protective paper (11); the first protective paper (10) extends to the outside of the display module FPC (5) and is bonded and fixed to the backlight iron frame (1) via a first avoidance hole (3).

2. The display module structure according to claim 1, characterized in that: Two adjacent sides of the first protective paper (10) extend to the outside of the display module FPC (5), and the first avoidance hole (3) is an L-shaped structure.

3. The display module structure according to claim 2, characterized in that: A conductive double-sided tape (601) is bonded to the grounded exposed copper portion (6), the other side of the conductive double-sided tape (601) is bonded and fixed to the backlight iron frame (1), and the second avoidance hole (4) is the same size as the conductive double-sided tape (601).

4. The display module structure according to claim 2, characterized in that: The grounding exposed copper portion (6) is located at the right edge of the front face of the display module FPC (5); a conductive cloth (602) is bonded to the grounding exposed copper portion (6); the conductive cloth (602) extends to the outside of the display module FPC (5) and is bonded and fixed to the backlight iron frame (1) through the second avoidance hole (4).

5. The display module structure according to claim 4, characterized in that: The conductive cloth (602) is a single-sided sticker.

6. The display module structure according to claim 4, characterized in that: The conductive cloth (602) extends toward the upper side of the display module FPC (5), and the extension distance of the conductive cloth (602) is 5-6 millimeters.

7. The display module structure according to claim 4, characterized in that: The first protective paper (10) extends 5-6 mm outside the display module FPC (5), and the width of the grounding exposed copper portion (6) is 5-6 mm.

8. The display module structure according to claim 1, characterized in that: The backlight iron frame (1) is connected in sequence to a cover plate (101), a bonding adhesive (102), an upper polarizer (103), an upper glass (104), a lower glass (105), a lower polarizer (106) and a backlight (107).

9. The display module structure according to claim 1, characterized in that: An auxiliary double-sided tape (12) is bonded to the middle of the display module FPC (5), and the other side of the auxiliary double-sided tape (12) is bonded and fixed to the graphite sheet (2).

10. The display module structure according to claim 9, characterized in that: The graphite sheet (2) is provided with a plurality of air holes (13), and the size of the air holes (13) is 1-2 mm.

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