Main screen FPC and liquid crystal display module
By introducing a bent arm portion with a smaller width into the main screen FPC, the problem of the lack of shortening the motherboard connection portion in the prior art is solved, resulting in large FPC size and high cost, and the effect of reducing FPC size, reducing cost and stabilizing connection is achieved.
Patent Information
- Application Number
- CN202421451314.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The existing home screen FPC needs to be bent during assembly, which makes the motherboard connection unable to be made too short, resulting in a larger FPC size and higher cost.
By introducing a bent arm portion with a smaller width into the main screen FPC, the motherboard connection portion is connected to the main body portion through the bent arm portion, thereby shortening the actual length of the motherboard connection portion and reducing the size of the FPC.
The size and cost of the main screen FPC are reduced. At the same time, since the width of the bent arm is smaller than that of the motherboard connection, the rebound stress during bending is smaller and the connection is more stable.
Smart Images
Figure CN222786109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to display technology, in particular to a main screen FPC and a liquid crystal display module. Background Art
[0002] like Figure 1 and 2 As shown, the liquid crystal display module mainly includes three parts, namely a liquid crystal panel 1', a backlight module 2' and a mainboard module 3'. The liquid crystal panel 1' is arranged on the front side of the backlight module 2', and the mainboard module 3' is arranged on the back side of the backlight module 2'; the liquid crystal panel 1' and the mainboard module 3' need to be connected through the main screen FPC 4' to transmit control signals.
[0003] The existing main screen FPC4' includes a main body 41', a main screen connection part 42' and a main board connection part 43', and the main screen connection part 42' and the main board connection part 43' are respectively connected to the adjacent two sides of the main body 41'. During assembly, after the main screen connection part 42' of the main screen FPC4' is bound and connected to the liquid crystal panel 1', it is necessary to bend the main body 41' of the main screen FPC4' to the back side of the backlight module 2', and adhere and fix the main body 41' of the main screen FPC4' to the back side of the backlight module 2' by double-sided adhesive, and then bend the main board connection part 43' of the main screen FPC4' and plug and connect it to the main board module 3'.
[0004] In order to meet the bending requirements of the above design, the mainboard connecting portion 43 ′ cannot be made too short, which results in the main screen FPC 4 ′ being relatively large in size and thus having a high cost. Utility Model Content
[0005] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides a main screen FPC, which has a smaller size and a lower cost.
[0006] The utility model provides a liquid crystal display module, comprising the main screen FPC.
[0007] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0008] A main screen FPC comprises a main body part, a main screen connecting part and a main board connecting part, wherein the main screen connecting part is connected to a first side edge of the main body part, the main board connecting part is located outside a second side edge of the main body part, the second side edge is adjacent to the first side edge, the main board connecting part is connected to the main body part through a bent arm part, and the width of the bent arm part is smaller than the width of the main board connecting part.
[0009] Furthermore, one end of the bent arm portion is connected to the second side edge of the main body portion, and the other end of the bent arm portion is connected to the side edge of the mainboard connecting portion that is opposite to the second side edge of the main body portion.
[0010] Furthermore, the bent arm portion is a linear arm.
[0011] Furthermore, one end of the bent arm is connected to a third side of the main body, the third side is opposite to the first side, and the other end of the bent arm is connected to a side of the mainboard connection portion in the same direction as the third side of the main body.
[0012] Furthermore, the bent arm portion is an L-shaped arm.
[0013] A liquid crystal display module comprises a liquid crystal panel, a backlight module, a mainboard module and the above-mentioned main screen FPC, wherein the liquid crystal panel is arranged on the front side of the backlight module, and the mainboard module is arranged on the back side of the backlight module; the main screen connecting part of the main screen FPC is bound and connected to the liquid crystal panel, and the mainboard connecting part of the main screen FPC is plugged and connected to the mainboard module.
[0014] Furthermore, the main body of the main screen FPC is bent by the main screen connecting portion and then bonded and fixed to the back side of the backlight module.
[0015] Furthermore, the mainboard connecting portion of the main screen FPC is bent by the bending arm and then plugged into the mainboard module.
[0016] Furthermore, the mainboard module and the main body are staggered in position on the back side of the backlight module.
[0017] Furthermore, after the mainboard module is fixed to the back side of the backlight module by means of screws, a spacing space is formed between the mainboard module and the backlight module, and the main body is located in the spacing space.
[0018] The utility model has the following beneficial effects: the main screen FPC of the utility model adopts a bending arm portion with a smaller width to connect between the main board connection portion and the main body portion. During assembly, after the main screen connection portion is bound and connected to the liquid crystal panel, the main body portion is bent to the back side of the backlight module and bonded and fixed, and finally the bending arm portion is bent to make the main board connection portion plug-in connected to the main board module; when the total length of the main board connection portion and the bending arm portion is the same as the length of the existing main board connection portion, or even when the total length of the main board connection portion and the bending arm portion is larger than the length of the existing main board connection portion, since the width of the bending arm portion is smaller than the width of the main board connection portion, the total area of the main board connection portion and the bending arm portion is smaller than the area of the existing main board connection portion, so that the size of the main screen FPC is smaller and the cost is lower; and compared with the main board connection portion, the bending arm portion has a smaller width, and the rebound stress during bending is also smaller, and the connection with the main board module is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of an existing liquid crystal display module before the main screen FPC is bent.
[0020] Figure 2 It is a schematic diagram of the structure of an existing liquid crystal display module after the main screen FPC is bent.
[0021] Figure 3 This is a schematic diagram of the unfolded structure of the main screen FPC provided by the utility model.
[0022] Figure 4 This is a schematic diagram of the unfolded structure of another main screen FPC provided by the utility model.
[0023] Figure 5 This is a schematic structural diagram of the liquid crystal display module provided by the utility model before the main screen FPC is bent.
[0024] Figure 6 This is a schematic structural diagram of another liquid crystal display module provided by the utility model before the main screen FPC is bent.
[0025] Figure 7 This is a schematic diagram of the structure of the liquid crystal display module provided by the utility model after the main screen FPC is bent. DETAILED DESCRIPTION
[0026] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] Embodiment 1
[0031] like Figure 3 and 4 As shown, a main screen FPC includes a main body part 41, a main screen connecting part 42 and a main board connecting part 43, wherein the main screen connecting part 42 is connected to a first side edge of the main body part 41, and the main board connecting part 43 is located outside a second side edge of the main body part 41, and the second side edge is adjacent to the first side edge, and the main board connecting part 43 is connected to the main body part 41 through a bending arm part 44, and the width of the bending arm part 44 is smaller than the width of the main board connecting part 43.
[0032] The main screen FPC of the utility model adopts a bending arm portion 44 with a smaller width to connect between the main board connection portion 43 and the main body portion 41. During assembly, after the main screen connection portion 42 is bound and connected to the liquid crystal panel, the main body portion 41 is bent to the back of the backlight module and bonded and fixed. Finally, after the bending arm portion 44 is bent, the main board connection portion 43 is plug-connected with the main board module. When the total length of the main board connection portion 43 and the bending arm 44 is the same as the length of the existing main board connection portion 43, even When the total length of the mainboard connection portion 43 and the bending arm portion 44 is longer than the length of the existing mainboard connection portion 43, since the width of the bending arm portion 44 is smaller than the width of the mainboard connection portion 43, the total area of the mainboard connection portion 43 and the bending arm portion 44 is smaller than the area of the existing mainboard connection portion 43, so that the main screen FPC has a smaller size and a lower cost; and compared with the mainboard connection portion 43, the bending arm portion 44 has a smaller width, and the rebound stress during bending is also smaller, and the connection with the mainboard module is more stable.
[0033] In this embodiment, the direction parallel to the first side is defined as the first direction, and the direction parallel to the second side is defined as the second direction. The length of the mainboard connection portion 43 refers to the size of the mainboard connection portion 43 in the first direction, and the width of the mainboard connection portion 43 refers to the size of the mainboard connection portion 43 in the second direction. The length of the bending arm portion 44 refers to the size of the bending arm portion 44 in the first direction, and the width of the bending arm portion 44 refers to the size of the bending arm portion 44 in the second direction.
[0034] In a specific implementation, Figure 3 As shown, one end of the bending arm portion 44 is connected to the second side edge of the main body portion 41 , and the other end of the bending arm portion 44 is connected to the side edge of the mainboard connecting portion 43 facing the second side edge of the main body portion 41 .
[0035] In this implementation, the bent arm portion 44 is a linear arm.
[0036] In another specific implementation, Figure 4 As shown, one end of the bent arm portion 44 is connected to the third side of the main body portion 41, and the third side is opposite to the first side, and the other end of the bent arm portion 44 is connected to the side of the main board connection portion 43 in the same direction as the third side of the main body portion 41.
[0037] In this implementation, the bent arm portion 44 is an L-shaped arm.
[0038] In this embodiment, the main body 41 of the main screen FPC has four sides, namely, a first side, a second side, a third side and a fourth side, and the first side, the second side, the third side and the fourth side are connected end to end in sequence, so that the main body 41 presents a rectangular shape. The first side and the third side are arranged oppositely along the second direction, and the second side and the fourth side are arranged oppositely along the first direction, wherein the first side and the third side are longer than the second side and the fourth side, so that the size of the main body 41 along the first direction is greater than its length along the second direction.
[0039] Preferably, the first direction is perpendicular to the second direction, and the second side and the fourth side are perpendicular to the first side and the third side respectively.
[0040] The present invention does not involve any improvement to the shape structure of the main screen connection part 42, so the specific shape structure of the main screen connection part 42 will not be described in detail here. The main screen connection part 42 can adopt any shape structure.
[0041] Embodiment 2
[0042] like Figure 5-7 As shown, a liquid crystal display module includes a liquid crystal panel 1, a backlight module 2, a mainboard module 3 and the main screen FPC4 described in Example 1, wherein the liquid crystal panel 1 is arranged on the front side of the backlight module 2, and the mainboard module 3 is arranged on the back side of the backlight module 2; the main screen connecting part 42 of the main screen FPC4 is bound and connected to the liquid crystal panel 1, and the mainboard connecting part 43 of the main screen FPC4 is plugged and connected to the mainboard module 3.
[0043] Preferably, the main body 41 of the main screen FPC4 is bent through the main screen connecting portion 42 and fixed to the back side of the backlight module 2 by double-sided adhesive (not shown in the figure), and the mainboard connecting portion 43 of the main screen FPC4 is bent through the bending arm portion 44 and plugged into the mainboard module 3 by a connector (not shown in the figure).
[0044] The mainboard module 3 and the main body 41 are staggered in position on the back of the backlight module 2, or after the mainboard module 3 is fixed to the back of the backlight module 2 at four corners by locking screws, a spacing space is formed between the main body 41 and the backlight module 2, and the main body 41 is located in the spacing space.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A main screen FPC, comprising a main body, a main screen connection part and a mainboard connection part, wherein the main screen connection part is connected to a first side of the main body, characterized in that: The mainboard connection portion is located outside the second side of the main body portion, the second side is adjacent to the first side, and the mainboard connection portion is connected to the main body portion through a bent arm portion, and the width of the bent arm portion is smaller than the width of the mainboard connection portion.
2. The main screen FPC according to claim 1, characterized in that: One end of the bent arm portion is connected to the second side edge of the main body portion, and the other end of the bent arm portion is connected to the side edge of the mainboard connecting portion facing the second side edge of the main body portion.
3. The main screen FPC according to claim 2, characterized in that: The bent arm portion is a linear arm.
4. The main screen FPC according to claim 1, characterized in that: One end of the bent arm is connected to a third side of the main body, the third side is opposite to the first side, and the other end of the bent arm is connected to a side of the mainboard connection portion in the same direction as the third side of the main body.
5. The main screen FPC according to claim 4, characterized in that: The bent arm portion is an L-shaped arm.
6. A liquid crystal display module, characterized in that: It includes a liquid crystal panel, a backlight module, a mainboard module and the main screen FPC as described in claim 1, wherein the liquid crystal panel is arranged on the front side of the backlight module, and the mainboard module is arranged on the back side of the backlight module; the main screen connecting part of the main screen FPC is bound and connected to the liquid crystal panel, and the mainboard connecting part of the main screen FPC is plugged and connected to the mainboard module.
7. The liquid crystal display module according to claim 6, characterized in that: The main body of the main screen FPC is bent through the main screen connecting portion and then bonded and fixed to the back side of the backlight module.
8. The liquid crystal display module according to claim 6, characterized in that: The mainboard connecting portion of the main screen FPC is plugged and connected to the mainboard module after being bent by the bending arm portion.
9. The liquid crystal display module according to claim 6, characterized in that: The mainboard module and the main body are staggered in position on the back side of the backlight module.
10. The liquid crystal display module according to claim 6, characterized in that: After the mainboard module is fixed on the back side of the backlight module by means of screws, a spacing space is formed between the mainboard module and the backlight module, and the main body is located in the spacing space.