Liquid crystal display screen with FPC (flexible printed circuit) capable of being adjusted and aligned
By setting up adjustable fixed departments on the lower frame of the LCD display, the problem of welding bias caused by a fixed position offset by the backlight FPC improves the competitiveness and production efficiency of the product.
Patent Information
- Application Number
- CN202421276255.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-05
AI Technical Summary
In traditional LCD screens, the backlight FPC has a large reversal tension after bent, which can easily cause welding deviation. If the position of the fixed column is offset during manufacturing, the backlight FPC must also be offset during fixation, resulting in welding deviation. , causing product scrapping and reducing competitiveness.
Designed a LCD display with FPC adjustable alignment. By opening a tank on the side wall of the lower frame, and the adjustable fixing department, such as double -sided sticky, magnet or fixed column, allow the backlight FPC to allow the backlight FPC to Adjust the fixed position to avoid welding bias.
Through the adjustable fixed position, the backlight FPC is avoided by the welding bias caused by the offset of the fixed position, improves the competitiveness of the product, reduces the generation of bad products, and reduces the cost of the product.
Smart Images
Figure CN222420738U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen with adjustable alignment of FPC. Background Art
[0002] In a traditional LCD screen, a display FPC is led out of the display module, and a backlight FPC is bound to the display FPC. After the backlight FPC is bent, it is welded and fixed to the pads on the backlight module. Since the backlight FPC has a large tensile force after being bent, it is easy to cause welding deviation. Therefore, some products use fixing columns on the lower frame and open positioning holes on the backlight FPC with the same number as the fixing columns to achieve fixation and positioning of the backlight FPC, and then weld them. In this way, there will be no welding deviation. However, after long-term use, it is found that if the position of the fixing column of this structure is offset during manufacturing, the backlight FPC must also be offset when fixed. This causes a welding deviation that would not have occurred but is forced to be offset, resulting in welding deviation. At this time, this batch of lower frames can only be scrapped, reducing the competitiveness of the product. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to make the fixed position of the backlight FPC on the lower frame adjustable and aligned, so that even if the backlight FPC is not aligned, it can still be readjusted to avoid forcibly offsetting the backlight FPC and causing welding deviation.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display screen with adjustable FPC alignment, which includes a lower frame, a backlight module and a display module, the lower frame includes a bottom plate and a side wall extending upward from the edge of the bottom plate, and a lead-out groove is opened on the side wall; the backlight module is arranged on the bottom plate, and a backlight FPC is led outward from the backlight module, and the backlight FPC passes through the lead-out groove; the display module is arranged on the backlight module, and a display FPC is led outward from the display module, and on the display FPC, the backlight FPC is bent and bound to the display FPC; a fixing part that can fix the backlight FPC is arranged on the side wall located at the lead-out groove, and the fixing position of the backlight FPC on the fixing part is adjustable.
[0006] As a preferred implementation of the FPC adjustable alignment liquid crystal display screen provided by the utility model, the fixing portion is double-sided adhesive.
[0007] As a preferred implementation of the FPC-adjustable aligned liquid crystal display provided by the utility model, there are two double-sided adhesives, and the edge positions of the two double-sided adhesives correspond to the left edge and the right edge of the backlight FPC respectively.
[0008] As a preferred implementation of the liquid crystal display screen with adjustable FPC alignment provided by the utility model, the width of the double-sided adhesive is equal to the width of the backlight FPC.
[0009] As a preferred implementation of the liquid crystal display screen with adjustable FPC alignment provided by the utility model, a reinforcing plate is provided on the backlight FPC.
[0010] As a preferred implementation of the FPC adjustable alignment liquid crystal display screen provided by the utility model, the fixing part is a magnet, and the material of the reinforcement plate is ferromagnetic stainless steel.
[0011] As a preferred embodiment of the FPC-adjustable aligned LCD screen provided by the utility model, the fixing part is a fixing column, and the backlight FPC is provided with fixing holes corresponding to the positions of the fixing columns, and the number of the fixing holes is greater than the number of the fixing columns.
[0012] As a preferred implementation of the liquid crystal display screen with adjustable FPC alignment provided by the utility model, the fixing column is integrally formed with the lower frame.
[0013] As a preferred implementation of the FPC adjustable alignment liquid crystal display screen provided by the utility model, a ring groove surrounding the fixing column is opened on the side wall located at the lead-out groove.
[0014] As a preferred implementation of the FPC adjustable alignment liquid crystal display provided by the utility model, the cross-sectional shape of the annular groove is square, arc or triangle.
[0015] The utility model has the following beneficial effects:
[0016] Since the fixed position of the backlight FPC on the fixing part is adjustable, when the fixing part is offset or the fixing position of the backlight FPC is offset by the staff, the fixing position of the backlight FPC can still be readjusted, thereby avoiding the offset of the welding caused by the offset of the backlight FPC, thereby improving the competitiveness of the product. Moreover, when the fixing part is offset, the lower frame does not need to be scrapped, and it only needs to be offset in the corresponding direction by a certain distance when fixing the backlight FPC, thereby reducing the generation of defective products and reducing product costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 The utility model provides a structural schematic diagram of a liquid crystal display screen with adjustable FPC alignment.
[0019] Figure 2 This is a schematic diagram of the structure of Example 2.
[0020] Figure 3 This is a schematic diagram of the structure of Example 3.
[0021] Figure 4 for Figure 3 Top view after hiding the display module.
[0022] Figure 5 for Figure 4 Schematic diagram of the structure of the backlight FPC.
[0023] Description of Figure Numbers:
[0024] Lower frame 1; backlight module 2; display module 3; bottom plate 11; side wall 12; lead-out groove 13; backlight FPC 4; display FPC 5; fixing portion 14; reinforcing plate 6; fixing hole 41. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] 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 the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0028] The utility model provides a liquid crystal display screen with adjustable FPC alignment, which comprises a lower frame, a backlight module and a display module, wherein the lower frame comprises a bottom plate and a side wall extending upward from the edge of the bottom plate, wherein a lead-out groove is provided on the side wall; the backlight module is arranged on the bottom plate, a backlight FPC is led outward from the backlight module, and the backlight FPC passes through the lead-out groove; the display module is arranged on the backlight module, a display FPC is led outward from the display module, and the backlight FPC is bent and bound to the display FPC on the display FPC; a fixing part capable of fixing the backlight FPC is arranged on the side wall located at the lead-out groove, and the fixing position of the backlight FPC on the fixing part is adjustable.
[0029] Since the fixed position of the backlight FPC on the fixing part is adjustable, when the fixing part is offset or the fixing position of the backlight FPC is offset by the staff, the fixing position of the backlight FPC can still be readjusted, thereby avoiding the offset of the welding caused by the offset of the backlight FPC, thereby improving the competitiveness of the product. Moreover, when the fixing part is offset, the lower frame does not need to be scrapped, and it only needs to be offset in the corresponding direction by a certain distance when fixing the backlight FPC, thereby reducing the generation of defective products and reducing product costs.
[0030] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and 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 with 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 limitations on the present invention.
[0031] See also Figure 1 , which is a liquid crystal display screen with adjustable FPC alignment provided by the utility model, comprising a lower frame 1, a backlight module 2 and a display module 3, wherein the lower frame 1 comprises a bottom plate 11 and a side wall 12 extending upward from the edge of the bottom plate 11, and a lead-out groove 13 is provided on the side wall 12; the backlight module 2 is arranged on the bottom plate 11, and a backlight FPC 4 is led outward from the backlight module 2, and the backlight FPC 4 passes through the lead-out groove 13; the display module 3 is arranged on the backlight module 2, and a display FPC 5 is led outward from the display module 3, and on the display FPC 5, the backlight FPC 4 is bent and bound to the display FPC 5; a fixing portion 14 for fixing the backlight FPC 4 is arranged on the side wall 12 located at the lead-out groove 13, and the fixing position of the backlight FPC 4 on the fixing portion 14 is adjustable. In this embodiment, the fixing part 14 is double-sided adhesive. When the double-sided adhesive is offset during production or the staff offsets the fixed position of the backlight FPC4, the backlight FPC4 can still be torn off and re-pasted, thereby adjusting the fixed position, avoiding the offset of the backlight FPC4 and causing welding offset, and improving the competitiveness of the product. In addition, when the double-sided adhesive is offset during production, the lower frame 1 does not need to be scrapped. It only needs to be offset in the opposite direction by a certain distance when fixing the backlight FPC4, thereby reducing the generation of defective products and reducing product costs.
[0032] Furthermore, there are two double-sided adhesive tapes, and the edge positions of the two double-sided adhesive tapes correspond to the left edge and the right edge of the backlight FPC 4 respectively, that is, the edge position of the double-sided adhesive tape is aligned with the edge of the backlight FPC 4 to achieve alignment.
[0033] Furthermore, when the number of the double-sided adhesive tape is one, the width of the double-sided adhesive tape is equal to the width of the backlight FPC 4 , that is, the edge position of the double-sided adhesive tape is aligned with the edge of the backlight FPC 4 to achieve alignment.
[0034] See also Figure 2As a further optimization scheme of Example 1, the difference between this embodiment and Example 1 is that the fixing part 14 is a magnet, and a reinforcing plate 6 is provided on the backlight FPC4. The position of the reinforcing plate 6 corresponds to the position of the magnet. The material of the reinforcing plate 6 is ferromagnetic stainless steel. When the magnet is offset during production or the staff deviates the fixed position of the backlight FPC4, the backlight FPC4 can still be removed and the reinforcing plate 6 of the backlight FPC4 can be adsorbed on the magnet again, thereby achieving the adjustment of the fixed position, avoiding the deviation of the backlight FPC4 and causing the welding deviation, and improving the competitiveness of the product. And when the magnet is offset during production, there is no need to scrap the lower frame 1. It only needs to be offset in the corresponding direction by a certain distance when fixing the backlight FPC4, thereby reducing the production of defective products and reducing product costs.
[0035] More preferably, a fixing groove is provided on the side wall 12 at the lead-out groove 13, and the fixing groove is used to place the magnet.
[0036] See also Figures 3 to 5 As a further optimization scheme of Example 1, the difference between this embodiment and Example 1 is that the fixing part 14 is a fixing column, and a fixing hole 41 corresponding to the position of the fixing column is opened on the backlight FPC4. The number of the fixing holes 41 is greater than the number of the fixing columns. In this embodiment, there are two fixing columns and four fixing holes 41. When the fixing column is offset during production or the staff offsets the fixed position of the backlight FPC4, the backlight FPC4 can still be removed and the other holes of the backlight FPC4 can be re-fixed on the fixing column, so as to adjust the fixed position, avoid the offset of the backlight FPC4 and cause welding offset, and improve the competitiveness of the product. And when the fixing column is offset during production, there is no need to scrap the lower frame 1. It is only necessary to reversely offset the position of the fixing hole 41 in the corresponding direction when fixing the backlight FPC4, thereby reducing the production of defective products and reducing product costs.
[0037] Furthermore, the fixing column and the lower frame 1 are integrally formed to improve the strength of the fixing column and reduce product cost.
[0038] Furthermore, an annular groove surrounding the fixing column is formed on the side wall 12 at the lead-out groove 13 to prevent the edge corners of the fixing column from being rounded due to mold wear and causing interference with other components, thereby affecting assembly accuracy, thereby improving the yield rate and assembly efficiency.
[0039] Furthermore, the cross-sectional shape of the annular groove is square, arc-shaped or triangular, but not limited thereto. The square, arc-shaped and triangular structures are simple and easy to manufacture; the assembly accuracy will not be affected after the mold is worn. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral whole; 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0040] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. A liquid crystal display screen with adjustable FPC alignment, characterized in that: It includes: A lower frame, comprising a bottom plate and a side wall extending upward from an edge of the bottom plate, wherein the side wall is provided with a lead-out groove; A backlight module is arranged on the bottom plate, and a backlight FPC is led outward from the backlight module, and the backlight FPC passes through the lead-out groove; A display module is arranged on the backlight module, a display FPC is led outward from the display module, and the backlight FPC is bent and bound to the display FPC on the display FPC; A fixing portion for fixing the backlight FPC is provided on the side wall located at the lead-out groove, and a fixing position of the backlight FPC on the fixing portion is adjustable.
2. The liquid crystal display screen with adjustable FPC alignment according to claim 1, characterized in that: The fixing portion is double-sided adhesive.
3. The liquid crystal display screen with adjustable FPC alignment according to claim 2, characterized in that: There are two double-sided adhesive tapes, and edge positions of the two double-sided adhesive tapes correspond to the left edge and the right edge of the backlight FPC respectively.
4. The liquid crystal display screen with adjustable FPC alignment according to claim 2, characterized in that: The width of the double-sided adhesive is equal to the width of the backlight FPC.
5. The liquid crystal display screen with adjustable FPC alignment according to claim 1, characterized in that: A reinforcing plate is arranged on the backlight FPC.
6. The liquid crystal display screen with adjustable FPC alignment according to claim 5, characterized in that: The fixing part is a magnet, and the material of the reinforcing plate is ferromagnetic stainless steel.
7. The liquid crystal display screen with adjustable FPC alignment according to claim 1, characterized in that: The fixing part is a fixing column, and the backlight FPC is provided with fixing holes corresponding to the positions of the fixing columns, and the number of the fixing holes is greater than the number of the fixing columns.
8. The liquid crystal display screen with adjustable FPC alignment according to claim 7, characterized in that: The fixing column and the lower frame are integrally formed.
9. The liquid crystal display screen with adjustable FPC alignment according to claim 7, characterized in that: An annular groove surrounding the fixing column is formed on the side wall located at the lead-out groove.
10. The liquid crystal display screen with adjustable FPC alignment according to claim 9, characterized in that: The cross-sectional shape of the annular groove is square, arc or triangle.