FPC structure and HUD display module

Abstract

The utility model provides an FPC structure. The FPC structure comprises a main body part, a first bending part and a second bending part, the two sides of the main body part respectively extend to form the first bending part and the second bending part; wherein one end of the first bending part is connected with one end of the main body part and extends from one end of the main body part in the direction perpendicular to the main body part to form an accommodating space; the second bending part comprises a first extension section and a second extension section, and one end of the first extension section is connected with the other end of the main body part and extends from one end of the main body part in the direction perpendicular to the main body part; one end of the second extension section is connected with the other end of the first extension section and extends from the end part of the first extension section to the direction far away from the main body part, and the second extension section is parallel to the main body part. By optimizing the FPC structure, the size of the HUD display module is reduced, and reasonable limiting of components and efficient utilization of the internal space are achieved.

Description

Technical Field

[0001] This utility model relates to the field of FPC, and in particular to an FPC structure and HUD display module. Background Technology

[0002] With the continuous development of vehicle technology, increasingly higher demands are being placed on the convenience and safety of vehicle use. For example, head-up displays (HUDs) have been widely used in vehicles. A head-up display is a device that projects instrument and / or navigation information into the driver's field of vision. The driver can see the instrument and navigation information in front of their eyes without having to look down at the instrument panel or central control display screen below the steering wheel, thereby improving driving safety.

[0003] HUD display modules typically consist of a liquid crystal display panel and a circuit board. A backlight module is also located on one side of the liquid crystal display panel to provide the light source required for the display. However, in existing technologies, the circuit board and backlight module together occupy a significant amount of space on the back of the display panel, resulting in a large HUD display module size. Furthermore, because the backlight module is positioned between the display panel and the circuit board, and the circuit board requires an FPC (Flexible Printed Circuit) for electrical connection to the display panel, misalignment of the stacked components / parts between the display panel and the circuit board can easily occur in practical applications, affecting the stability and reliability of the HUD display module.

[0004] Therefore, how to optimize the FPC structure to reduce the size of the HUD display module, and achieve reasonable component placement and efficient utilization of internal space while ensuring functional integrity, has become an urgent technical problem to be solved. Utility Model Content

[0005] Based on the above situation, the main purpose of this utility model is to provide an FPC structure and HUD display module to effectively reduce the overall size of the HUD display module and achieve reasonable layout of components and efficient utilization of internal space.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] In a first aspect, this utility model discloses an FPC structure for connecting a display panel and a circuit board in a HUD display module, including an FPC body. The FPC body includes a main body, a first bent portion for connecting the display panel, and a second bent portion for connecting the circuit board. The first bent portion and the second bent portion extend from both sides of the main body, respectively.

[0008] Wherein, one end of the first bent portion is connected to one end of the main body portion and extends from one end of the main body portion in a direction perpendicular to the main body portion to form a receiving space, the receiving space being used to receive a backlight on one side of the display panel.

[0009] The second bending portion includes a first extension segment and a second extension segment. One end of the first extension segment is connected to the other end of the main body and extends from one end of the main body in a direction perpendicular to the main body. One end of the second extension segment is connected to the other end of the first extension segment and extends from the end of the first extension segment in a direction away from the main body. The second extension segment is parallel to the main body.

[0010] Optionally, the first bend is in the opposite direction to the extension of the first extension.

[0011] Optionally, the FPC body has a stepped structure.

[0012] Optionally, the first extension and the second extension are in an "L" shape to pass through the wire grooves on the circuit board and connect to the circuit board.

[0013] Optionally, the connection between the first extension segment and the second extension segment is arc-shaped.

[0014] Optionally, the first extension segment and the second extension segment are integrally formed structures.

[0015] Optionally, the main body, the first bending portion, and the second bending portion are integrally formed.

[0016] Optionally, the length of the first extension segment is less than the length of the second extension segment.

[0017] Optionally, the length of the first bend is less than the length of the second bend.

[0018] In a second aspect, this utility model discloses a HUD display module, including the FPC structure disclosed in the first aspect, and also including a display panel, a backlight and a circuit board stacked together;

[0019] The main body is attached to the backlight, the first bent portion bypasses the outside of the backlight and is connected to the display panel, and the first bent portion covers at least a portion of the backlight; the second bent portion passes through the wire groove on the circuit board and is connected to the circuit board.

[0020] Beneficial effects:

[0021] This utility model discloses an FPC structure that connects the circuit board and display panel in a HUD display module. The structure includes a first and second bend formed by the main body and its two sides, achieving optimized spatial layout. The first bend creates space for accommodating devices / components after the FPC is bent. ， This avoids misalignment of various stacked components / parts between the display panel and the circuit board. The second bending section allows it to pass through the groove on the circuit board and be fixedly connected to it. The circuit board connected to the second bending section provides clamping force to the space formed after the FPC is bent, thereby allowing the stacked components / parts between the display panel and the circuit board to be better positioned through the bending space, improving the overall stability and reliability of the HUD display module.

[0022] Other beneficial effects of this utility model will be explained in detail through the introduction of specific technical features and technical solutions in the specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0023] The preferred embodiments of this utility model will now be described with reference to the accompanying drawings. In the drawings:

[0024] Figure 1 This is a schematic diagram of the connection between an FPC structure and a display panel disclosed in this embodiment;

[0025] Figure 2 This is a schematic diagram of the internal structure of a HUD display module disclosed in this embodiment.

[0026] The reference numerals on the accompanying drawings in the instruction manual are as follows:

[0027] 1. FPC body; 11. First bending section; 12. Main body; 13. Second bending section; 131. First extension section; 132. Second extension section; 2. Display panel; 3. Circuit board; 4. Backlight. Detailed Implementation

[0028] The present invention will now be described based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0029] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0030] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0031] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] To optimize the FPC structure and reduce the size of the HUD display module, while ensuring functional integrity and achieving reasonable component placement and efficient utilization of internal space, this embodiment provides an FPC structure. Please refer to [reference needed]. Figure 1 , Figure 1 This is a schematic diagram of the connection between an FPC structure and a display panel 2 disclosed in this embodiment. The FPC structure includes an FPC body 1, which includes a main body 12, a first bent portion 11 for connecting the display panel 2, and a second bent portion 13 for connecting the circuit board 3. The main body 12 is the main part of the FPC structure, and the first bent portion 11 and the second bent portion 13 extend from both sides of it, respectively. One end of the first bent portion 11 is connected to one end of the main body 12 and extends in a direction perpendicular to the main body 12, thereby forming a receiving space for accommodating the backlight 4. This receiving space can accommodate at least a portion of the backlight 4, thereby preventing the various devices / components stacked between the display panel 2 and the circuit board 3 from being misaligned. The second bent portion 13 includes a first extension segment 131 and a second extension segment 132. The first extension segment 131 is connected to the other end of the main body 12 and extends in a direction perpendicular to the main body 12. The second extension segment 132 extends from the end of the first extension segment 131 in a direction away from the main body 12 and is parallel to the main body 12.

[0033] In one embodiment of this application, the FPC body 1 has a stepped structure. Setting the FPC body in a stepped structure allows different components to be accommodated at the bends formed by each step, thereby effectively improving space utilization. Simultaneously, the bends formed by each step limit the display panel 2, backlight 4, and circuit board 3, enhancing the overall structural stability.

[0034] In one specific embodiment, please refer to Figure 1The stepped structure is achieved through the different extension directions of the first extension segment 131 and the second extension segment 132 of the first bend 11 and the second bend 13. This design difference in the extension direction of the first bend 11 and the second bend 13 creates an FPC structure with stepped characteristics, which can adapt to the spatial layout requirements between the display panel 2, the backlight 4, and the circuit board 3 in the HUD display module. For details, please refer to... Figure 2 The first bend 11 extends along the direction of the display panel 2 and the backlight 4, forming a space to accommodate the backlight 4, thereby allowing the first bend 11 to bypass the outside of the backlight 4 and connect with the display panel 2. The first extension 131 of the second bend 13 extends along the direction of the circuit board 3, ensuring that an appropriate space is reserved between the backlight 4 and the circuit board 3 so that the second extension 132 can smoothly pass through the wire groove of the circuit board 3. The above structure achieves a reasonable distribution within a limited space, avoids interference between components, and optimizes the utilization efficiency of the internal space.

[0035] In one embodiment of this application, the first bend 11 extends in the opposite direction to the first extension 131.

[0036] In one specific embodiment, given that the FPC body plays a key bridging role in connecting the display panel 2 and the circuit board 3, the extension direction of its first bend 11 matches the installation requirements of the display panel 2, while the first extension 131 of the second bend 13 faces the circuit board 3, thereby making the overall structure of the HUD display module thinner and reducing its volume, making it more compact.

[0037] In one embodiment of this application, the first extension 131 and the second extension 132 are in an "L" shape to pass through the wire groove of the circuit board 3 and connect to the circuit board 3.

[0038] In one specific embodiment, please refer to Figure 2 The first extension 131 and the second extension 132 of the second bending portion 13 are in an L-shape, which allows the FPC structure to flexibly adapt to circuit boards 3 of different shapes and to connect to the circuit board 3 through the internal wire grooves of the circuit board 3 through a reasonable bending method. The L-shape structure improves space utilization and avoids unnecessary space occupation.

[0039] In one embodiment of this application, the connection between the first extension 131 and the second extension 132 is arc-shaped.

[0040] In one specific embodiment, please refer to Figure 1The connection between the first extension segment 131 and the second extension segment 132 is an arc-shaped design, so that after the second extension segment 132 passes through the circuit board 3, the clamping force of the circuit board 3 on the accommodating space formed by the first bending part 11 will not affect the second bending part 13, thus avoiding stress concentration and improving the reliability of the FPC structure, ensuring that the FPC structure and the circuit board 3 can achieve a stable and intact connection.

[0041] In one embodiment of this application, the first extension 131 and the second extension 132 are integrally formed structures. Furthermore, the main body 12, the first bending portion 11, and the second bending portion 13 are integrally formed structures to enhance the strength of the FPC.

[0042] In one embodiment of this application, the length of the first extension 131 is less than the length of the second extension 132.

[0043] In one specific embodiment, please refer to Figure 1 The length of the first extension segment 131 is designed to be the distance between the circuit board 3 and the backlight, thereby avoiding unnecessary space occupation caused by excessive extension and improving the compactness and space utilization of the HUD display module. The length of the second extension segment 132 is relatively longer than that of the first extension segment 131, so that it extends from the end of the first extension segment 131 to the corresponding connection position of the circuit board 3 and fits against the circuit board 3, ensuring a reliable connection between the FPC structure and the circuit board 3.

[0044] In one embodiment of this application, the length of the first bend 11 is less than the length of the second bend 13.

[0045] In one specific embodiment, since the first bend 11 needs to bypass the backlight 4 and connect to the display panel 2, its length is designed to be relatively short to accommodate the external contour of the backlight 4 and the positional requirements of the display panel 2. The second bend 13, on the other hand, needs to pass through the internal groove between the backlight 4 and the circuit board 3 and connect to the circuit board 3 via the second extension 132. Therefore, its length is relatively long to ensure stable passage through the internal groove of the circuit board 3 and a reliable connection with the circuit board.

[0046] This application also discloses a HUD display module, including the FPC structure disclosed in the above embodiments, and further including a display panel 2, a backlight 4, and a circuit board 3 stacked together; the main body 12 is attached to the backlight 4; the first bending portion 11 bypasses the outside of the backlight 4 and is connected to the display panel 2, and the first bending portion 11 covers at least a portion of the backlight 4; the second bending portion 13 passes through the wire groove on the circuit board 3 and is connected to the circuit board 3.

[0047] In one specific embodiment, please refer to Figure 2 , Figure 2This is a schematic diagram of the internal structure of the HUD display module; one end of the FPC body 1 is connected to the display panel 2, and the other end is connected to the circuit board 3; the backlight 4 is located between the display panel 2 and the circuit board 3.

[0048] In this embodiment, the first bend 11 bypasses the top of the backlight 4 and connects to the display panel 2, forming a receiving space that covers part of the top area of ​​the backlight 4, thereby preventing misalignment of the various devices / components stacked between the display panel 2 and the circuit board 3. The second bend 13 passes through the internal groove of the circuit board 3 and connects to the circuit board 3. After the second bend 13 passes through the groove, the circuit board 3 can provide a clamping force to the receiving space formed by the first bend 11, thereby allowing the display panel 2 and the stacked devices / components between it and the circuit board 3 to be better positioned by the bent receiving space, thus better ensuring the tight stacking of the stacked devices / components.

[0049] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0050] It should be understood that the above-described embodiments are merely exemplary and not restrictive. Without departing from the basic principles of this utility model, any obvious or equivalent modifications or substitutions made by those skilled in the art regarding the above details will be included within the scope of the claims of this utility model.

Claims

1. An FPC structure for connecting a display panel (2) and a circuit board (3) in a HUD display module, characterized in that, The FPC body (1) includes a main body (12), a first bend (11) for connecting the display panel (2), and a second bend (13) for connecting the circuit board (3); the first bend (11) and the second bend (13) extend from both sides of the main body (12) respectively. Wherein, one end of the first bent portion (11) is connected to one end of the main body portion (12) and extends from one end of the main body portion (12) in a direction perpendicular to the main body portion (12) to form a receiving space, the receiving space being used to receive the backlight (4) on one side of the display panel (2); The second bending portion (13) includes a first extension segment (131) and a second extension segment (132). One end of the first extension segment (131) is connected to the other end of the main body portion (12) and extends from one end of the main body portion (12) in a direction perpendicular to the main body portion (12). One end of the second extension segment (132) is connected to the other end of the first extension segment (131) and extends from the end of the first extension segment (131) in a direction away from the main body portion (12). The second extension segment (132) is parallel to the main body portion (12).

2. The FPC structure according to claim 1, characterized in that, The first bend (11) extends in the opposite direction to the first extension (131).

3. The FPC structure according to claim 1, characterized in that, The FPC body (1) has a stepped structure.

4. The FPC structure according to claim 1, characterized in that, The first extension segment (131) and the second extension segment (132) are in an "L" shape to pass through the wire groove on the circuit board (3) and connect to the circuit board (3).

5. The FPC structure according to claim 1, characterized in that, The connection between the first extension segment (131) and the second extension segment (132) is arc-shaped.

6. The FPC structure according to claim 1, characterized in that, The first extension segment (131) and the second extension segment (132) are integrally formed structures.

7. The FPC structure according to claim 1, characterized in that, The main body (12), the first bending part (11) and the second bending part (13) are integrally formed structures.

8. The FPC structure according to claim 1, characterized in that, The length of the first extension segment (131) is less than the length of the second extension segment (132).

9. The FPC structure according to claim 1, characterized in that, The length of the first bend (11) is less than the length of the second bend (13).

10. A HUD display module, comprising the FPC structure according to any one of claims 1-9, characterized in that, It also includes a stacked display panel (2), a backlight (4), and a circuit board (3); The main body (12) is attached to the backlight (4), the first bending part (11) bypasses the outside of the backlight (4) and is connected to the display panel (2), the first bending part (11) covers at least a part of the backlight (4); the second bending part (13) passes through the groove on the circuit board (3) and is connected to the circuit board (3).

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