FPC reinforcing plate, display module and display equipment

Abstract

The utility model provides an FPC stiffening plate, display module and display equipment, the FPC stiffening plate comprises a first plate body and a second plate body, the first plate body is provided with a plurality of first through holes, one side of the first plate body is connected with the second plate body, the second plate body is provided with a plurality of second through holes, the second through holes correspond to the first through holes in position, and the first through holes are connected with the second plate body. The diameter of the second through holes is smaller than that of the first through holes, and air guide grooves are communicated between the adjacent second through holes and located in the faces, facing the first plate body, of the second plate bodies. Through the arrangement of the first through holes and the second through holes, exhaust during thermocompression bonding is facilitated, the diameter of the first through holes is larger than that of the second through holes, air can enter the first through holes preliminarily and rapidly and then is exhausted through the second through holes, and the air guide grooves enable exhaust to be uniform and rapid. The second plate body with the small hole area is connected to the face, with the large hole area, of the first plate body, so that the FPC reinforcing plate further has the physical strength.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, and in particular to an FPC reinforcement plate, a display module and a display device. Background Art

[0002] Smart vehicles are becoming increasingly popular, and they often come equipped with onboard display modules. These modules are typically composed of an LCD panel, driver IC, FPC, and other supporting materials.

[0003] To meet consumer demand, automotive display modules are typically larger and contain more electronic components. To accommodate the driver IC, a large number of these components are typically connected to the FPC. However, FPC materials are relatively soft and easily deform under stress, making the soldered leads of electronic components prone to falling off. Therefore, a reinforcing plate is added to the back of the FPC to secure it, increase its strength, and prevent deformation.

[0004] The connection between the existing reinforcement plate and FPC relies on conductive adhesive. After adding a layer of conductive adhesive between the reinforcement plate and the FPC, they are fixed by hot pressing. However, during the hot pressing process, due to the large deformation of the FPC, the air in the middle cannot be quickly discharged during pressing. As a result, after a period of pressing, the air in the reinforcement plate and FPC returns to normal atmospheric pressure, causing local pressing bubbles, further leading to undesirable phenomena such as bulging and component detachment. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an FPC reinforcement plate, a display module and a display device, aiming to solve the problem in the existing technology that the FPC and the reinforcement plate cannot be quickly and evenly exhausted when pressed together.

[0006] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0007] A FPC reinforcement plate includes a first plate body and a second plate body, wherein a plurality of first through holes are provided on the first plate body, the first through holes pass through the first plate body, one side of the first plate body is connected to the second plate body, a plurality of second through holes are provided on the second plate body, the second through holes pass through the second plate body, the second through holes correspond to the positions of the first through holes, the diameter of the second through holes is smaller than the first through holes, and adjacent second through holes are connected to air guide grooves, the air guide grooves are located on the side of the second plate body facing the first plate body, and the side of the first plate body facing away from the second plate body is used for bonding the FPC.

[0008] Compared with the prior art, the beneficial effect of the present invention is that by setting a plurality of first through holes and a plurality of second through holes, exhaust between the FPC and the first board body is facilitated during heat pressing. The diameter of the first through hole is larger than the diameter of the second through hole, which facilitates the air to initially and quickly enter the first through hole and then be discharged through the second through hole. The diameter of the second through hole is smaller. If the exhaust between the FPC and the first board body is uneven or more air needs to be exhausted, the air will be squeezed in some of the second through holes, and the exhaust speed will be slower than that of the second through holes in other positions, which will still easily generate bubbles. The air guide groove will promptly guide the squeezed air to the second through holes in other positions, so that the exhaust is uniform and fast. Opening holes through the board body will reduce the strength of the reinforcement plate. The second board body with a smaller hole area is connected to the side of the first board body with a larger hole area, so that the FPC reinforcement plate also has physical strength.

[0009] Furthermore, the diameter of the second through hole is 0.5 mm.

[0010] Furthermore, the distance between adjacent second through holes is 20 mm to 30 mm.

[0011] Furthermore, the thickness of the second plate is greater than the thickness of the first plate.

[0012] Furthermore, the diameter of the first through hole is 1 mm to 1.5 mm.

[0013] Furthermore, the depth of the air guide groove is less than half of the thickness of the second plate.

[0014] A display module includes an FPC, and the display module also includes an FPC reinforcement plate as described in any one of the above technical solutions.

[0015] A display device comprises an FPC reinforcement plate as described in any one of the above technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the FPC reinforcement plate in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of the FPC reinforcement plate in the embodiment of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the second plate body in the FPC reinforcement plate in an embodiment of the present utility model;

[0019] Description of main component symbols:

[0020]

[0021]

[0022] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] See also Figures 1 to 3 The FPC reinforcement plate in the embodiment of the present invention includes a first plate 100 and a second plate 200. The second plate 200 is thicker than the first plate 100. The first plate 100 is provided with a plurality of first through-holes 110, which extend through the first plate 100 and have a diameter of 1 mm to 1.5 mm. Preferably, both the first plate 100 and the second plate 200 are made of steel and are connected and fixed by welding. The first through-holes 110 are circular holes with a diameter of 1.2 mm.

[0027] One side of the first plate body 100 is connected to the second plate body 200. A plurality of second through holes 210 are provided on the second plate body 200. The second through holes 210 pass through the second plate body 200. The diameter of the second through holes 210 is 0.5 mm. The distance between adjacent second through holes 210 is 20 mm to 30 mm. The second through holes 210 correspond to the positions of the first through holes 110. The diameter of the second through holes 210 is smaller than that of the first through holes 110. Adjacent second through holes 210 are connected to air guide grooves 220. The air guide grooves 220 are located on the side of the second plate body 200 facing the first plate body 100. The depth of the air guide grooves 220 is less than half of the thickness of the second plate body 200. The side of the first plate body 100 facing away from the second plate body 200 is used for bonding the FPC. Preferably, the second through hole 210 is coaxial with the first through hole 110, and the distance between adjacent second through holes 210 is selected to be 20 mm. The first board 100 is attached to the FPC through conductive glue. The operator can apply part of the conductive glue to the first through hole 110. Specifically, the conductive glue can pass through the first through hole 110 and connect to the surface of the second board 200, which is beneficial to increase the bonding strength between the conductive glue and the FPC reinforcement plate, and the first through hole 110 can provide space for the conductive glue to be slightly deformed by heat. It can be understood that the traditional reinforcement plate is vented by opening small holes in a single board body. In order to ensure the physical strength of the reinforcement plate, the hole diameter is small. The small hole diameter leads to slow exhaust speed, and the air is squeezed in the hole, which is still prone to bubbles, bulging, etc. If the aperture is increased, the structural strength of the reinforcement plate is reduced, and it is difficult to balance the exhaust speed and the strength of the plate body. By setting the first plate body 100 and the second plate body 200, the first plate body 100 adopts a plate body with large-aperture through holes, which can perform preliminary rapid exhaust and accommodate air for buffering. The second plate body 200 adopts a plate body with small-aperture through holes and is thicker than the first plate body 200, which increases the supporting force of the first plate body 100 for the FPC, so that the FPC reinforcement plate as a whole has higher physical strength and is not easy to deform, thereby protecting the electronic components on the FPC. The air guide groove 220 makes the FPC reinforcement plate exhaust uniform, and the holes with more air discharge the air to the holes with less air through the air guide groove 220, and the air guide groove 220 itself also provides a buffer space for exhaust.

[0028] The present invention further provides a display module, including an FPC. The display module further includes the FPC reinforcement plate as described in the above embodiment.

[0029] The utility model also provides a display device, comprising the FPC reinforcement plate as described in the above embodiment.

[0030] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An FPC reinforcement plate, characterized in that: It includes a first plate body and a second plate body, a plurality of first through holes are provided on the first plate body, the first through holes pass through the first plate body, one side of the first plate body is connected to the second plate body, a plurality of second through holes are provided on the second plate body, the second through holes pass through the second plate body, the second through holes correspond to the positions of the first through holes, the diameter of the second through holes is smaller than the first through holes, and adjacent second through holes are connected to air guide grooves, the air guide grooves are located on the side of the second plate body facing the first plate body, and the side of the first plate body facing away from the second plate body is used for bonding FPC.

2. The FPC reinforcement plate according to claim 1, characterized in that: The diameter of the second through hole is 0.5 mm.

3. The FPC reinforcement plate according to claim 1, characterized in that: The distance between adjacent second through holes is 20 mm to 30 mm.

4. The FPC reinforcement plate according to claim 1, characterized in that: The thickness of the second plate is greater than that of the first plate.

5. The FPC reinforcement plate according to claim 1, characterized in that: The diameter of the first through hole is 1 mm to 1.5 mm.

6. The FPC reinforcement plate according to claim 1, characterized in that: The depth of the air guide groove is less than half of the thickness of the second plate.

7. A display module, comprising an FPC, characterized in that: The display module further includes the FPC reinforcement plate according to any one of claims 1 to 6.

8. A display device, characterized in that: It comprises the FPC reinforcement plate according to any one of claims 1 to 6.

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