Cold-bending processing independent curved surface backlight module

Abstract

The utility model discloses a cold-bending processing independent curved surface backlight module which comprises curved surface glass, optical cement, a liquid crystal display screen, attaching glue, a curved surface backlight module body, a die-casting frame body support, a display screen, a rear shell and fixing screws, the optical cement is coated on the curved surface glass, the liquid crystal display screen is attached to the curved surface glass through the optical cement, and the attaching glue is attached to the liquid crystal display screen. The laminating glue is coated on the liquid crystal display screen, the curved surface backlight module is laminated on the liquid crystal display screen through the laminating glue, the die-casting frame body bracket is connected with the curved surface backlight module through the laminating glue, the display screen is arranged on the die-casting frame body bracket, the rear shell is clamped on the die-casting frame body bracket, and a plurality of groups of fixing screws are arranged. And a plurality of groups of fixing screws are respectively in threaded connection with the rear shell and the die-casting frame body bracket. Therefore, not only is the optical effect of the curved surface backlight module improved, but also the fixing and shielding problems of the FOG with the PCBA are solved, meanwhile, good compatibility and adaptability are achieved, the research and development cost is remarkably reduced, the development period is remarkably shortened, and the curved surface backlight module has wide application prospects.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive electronics, and in particular to a cold-bent independent curved surface backlight module. Background Technology

[0002] In the field of display technology, backlight modules are one of the key components for achieving high-quality display effects. Traditional backlight module designs typically employ a planar structure, but with the increasing popularity of curved display devices, the demand for curved backlight modules is growing. Curved backlight modules not only provide more uniform optical effects but also enhance the visual impact of display devices. However, the design and manufacturing of curved backlight modules face many challenges, especially in fixing and shielding the FOG (Film on Glass) strip PCBA (Printed Circuit Board Assembly).

[0003] Traditional die-cast frame brackets have limitations when fixing FOG (Follicular Unit Extraction) PCBAs, especially when the PCBA area is limited, making effective fixing and shielding difficult. Furthermore, due to the limited area of ​​instrument and central control PCBAs, screen-mounted PCBA solutions become a necessary choice. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a cold-bending independent curved backlight module. The combination of hot-bent curved glass lenses and cold-bent FOG achieves a low-stress module state, reducing the reliance on high-precision fixtures in the production process. Depending on the functional requirements, an in-cell LCD display (FOG) or a non-in-cell ordinary LCD display can be selected to complete the function, reducing the assembly process of the touch screen.

[0006] To achieve the above objectives, this utility model proposes a cold-bent independent curved backlight module, comprising curved glass, optical adhesive, liquid crystal display screen, bonding adhesive, curved backlight module, die-cast frame bracket, display screen, back cover, and fixing screws. The optical adhesive is coated on the curved glass; the liquid crystal display screen is bonded to the curved glass via the optical adhesive; the bonding adhesive is coated on the liquid crystal display screen; the curved backlight module is bonded to the liquid crystal display screen via the bonding adhesive; the die-cast frame bracket is connected to the curved backlight module via the bonding adhesive; the display screen is disposed on the die-cast frame bracket; the back cover is snapped onto the die-cast frame bracket, and the display screen is disposed between the back cover and the die-cast frame bracket; multiple sets of fixing screws are threadedly connected to the back cover and the die-cast frame bracket respectively.

[0007] This utility model's cold-bending independent curved backlight module achieves a low-stress module state by combining hot-bent curved glass lenses and cold-bent FOG. This reduces the reliance on high-precision fixtures in the production process. Depending on functional requirements, it can be paired with either an in-cell LCD display (FOG) or a non-in-cell ordinary LCD display to complete the function, reducing the assembly process of the touch screen.

[0008] In addition, the cold-bent independent curved backlight module proposed in the application may also have the following additional technical features:

[0009] Specifically, the curved glass is hot-bent, and the curvature of the curved glass ranges from R4000 to R1000.

[0010] Specifically, the curved backlight module and the display screen are two sets, and the curved backlight module and the display screen are respectively engaged in the die-cast frame bracket.

[0011] Specifically, the die-cast frame bracket and the rear shell are respectively provided with matching threaded holes, and multiple sets of fixing screws are threadedly connected in the threaded holes.

[0012] Specifically, the adhesive is one of structural adhesive, silicone, and double-sided adhesive.

[0013] Specifically, the back shell is a plastic shell, and the back shell and the curved glass are the same size.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model;

[0018] Figure 3 This is a partial enlarged view of part D of this utility model.

[0019] As shown in the figure: 1. Curved glass; 2. Optical adhesive; 3. LCD screen; 4. Bonding adhesive; 5. Curved backlight module; 6. Die-cast frame bracket; 7. Display screen; 8. Back cover; 9. Fixing screws. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] The following description, in conjunction with the accompanying drawings, describes a cold-bending independent curved surface backlight module according to an embodiment of the present invention.

[0022] like Figure 1-3 As shown, the cold-bending independent curved backlight module of this utility model embodiment includes curved glass 1, optical adhesive 2, liquid crystal display screen 3, bonding adhesive 4, curved backlight module 5, die-cast frame bracket 6, display screen 7, back shell 8, and fixing screws 9.

[0023] Optical adhesive 2 is coated on curved glass 1, and liquid crystal display screen 3 is bonded to curved glass 1 using optical adhesive 2. Adhesive 4 is coated on liquid crystal display screen 3, and curved backlight module 5 is bonded to liquid crystal display screen 3 using adhesive 4. Die-cast frame bracket 6 is connected to curved backlight module 5 using adhesive 4. Display screen 7 is mounted on die-cast frame bracket 6, and back cover 8 is snapped onto die-cast frame bracket 6, with display screen 7 positioned between back cover 8 and die-cast frame bracket 6. Multiple sets of fixing screws 9 are threaded onto back cover 8 and die-cast frame bracket 6 respectively.

[0024] It should be noted that the curved glass 1 and the LCD display 3 are achieved through a combination of hot-bent curved glass lenses and cold-bent FOG LCD displays, resulting in a low-stress module state and reducing reliance on high-precision fixtures during production. The LCD display 3 uses either an in-cell LCD display (FOG) or a non-in-cell ordinary LCD display to perform its functions.

[0025] In one embodiment of this utility model, such as Figure 1 As shown, the curved glass 1 is hot-bent, and the curvature range of the curved glass 1 is R4000~R1000.

[0026] It should be noted that the curved glass 1 and the back cover 8 are the same size. During installation, the curved glass 1 is attached to the back cover 8, so the curved glass 1 and the back cover 8 overlap.

[0027] In one embodiment of this utility model, such as Figure 1As shown, the curved backlight module 5 and the display screen 7 are two sets, and the curved backlight module 5 and the display screen 7 are respectively snapped into the die-cast frame bracket 6.

[0028] It should be noted that the backlight material in the curved backlight module 5 can be die-cast: AZ91D / ADC12 or plastic front frame and stamped aluminum plate / stainless steel back shell.

[0029] In one embodiment of this utility model, such as Figure 1 As shown, the die-cast frame bracket 6 and the rear shell 8 are respectively provided with matching threaded holes, and multiple sets of fixing screws 9 are threadedly connected in the threaded holes.

[0030] It should be noted that threaded holes are provided on the die-cast frame bracket 6 and the rear shell 8, and multiple fixing screws 9 are threaded into the threaded holes to fix the die-cast frame bracket 6 and the rear shell 8 together.

[0031] In one embodiment of this utility model, such as Figure 1 As shown, adhesive 4 is one of structural adhesive, silicone, and double-sided adhesive.

[0032] It should be noted that the bonding adhesive 4 is one of structural adhesive, silicone, and double-sided adhesive. After pressure holding according to the process, it can be used for the subsequent PCBA assembly.

[0033] In one embodiment of this utility model, such as Figure 1 As shown, the back cover 8 is a plastic shell, and the back cover 8 and the curved glass 1 are the same size.

[0034] It should be noted that the rear shell 8 described in this embodiment is made of plastic, which provides good overall strength and facilitates installation.

[0035] Specifically, the assembly steps are as follows: the LCD screen 3 is attached to the curved glass 1 using optical adhesive 2, the curved backlight module 5 is attached to the LCD screen 3 using adhesive 4, the LCD screen 3 is attached to the die-cast frame bracket 6 using adhesive 4, then the display screen 7 is placed on the die-cast frame bracket 6, and the die-cast frame bracket 6 is snapped onto the back cover 8. Then, the fixing screw 9 is threaded onto the die-cast frame bracket 6 and the back cover 8.

[0036] In summary, the cold-bending independent curved backlight module of this utility model, which combines hot-bent curved glass lenses and cold-bending FOG, achieves a low-stress module state, reduces the reliance on high-precision fixtures in the production process, and allows for the selection of in-cell LCD displays (FOG) or non-in-cell ordinary LCD displays to complete the functions according to functional requirements, thereby reducing the assembly process of the touch screen.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cold-bending process for an independent curved backlight module, characterized in that, Includes curved glass (1), optical adhesive (2), liquid crystal display (3), bonding adhesive (4), curved backlight module (5), die-cast frame bracket (6), display screen (7), back cover (8), and fixing screws (9), among which, The optical adhesive (2) is coated on the curved glass (1); The liquid crystal display screen (3) is attached to the curved glass (1) by the optical adhesive (2); The adhesive (4) is applied to the liquid crystal display screen (3); The curved backlight module (5) is attached to the liquid crystal display screen (3) by the adhesive (4); The die-cast frame bracket (6) is connected to the curved backlight module (5) via the adhesive (4); The display screen (7) is mounted on the die-cast frame bracket (6); The rear shell (8) is engaged with the die-cast frame bracket (6), and the display screen (7) is disposed between the rear shell (8) and the die-cast frame bracket (6); The fixing screws (9) are in multiple sets, and the multiple sets of fixing screws (9) are respectively threaded onto the rear shell (8) and the die-cast frame bracket (6).

2. The cold-bent independent curved surface backlight module according to claim 1, characterized in that, The curved glass (1) is hot-bent, and the curvature range of the curved glass (1) is R400 to R100.

3. The cold-bending independent curved surface backlight module according to claim 1, characterized in that, The curved backlight module (5) and the display screen (7) are two sets, and the curved backlight module (5) and the display screen (7) are respectively engaged in the die-cast frame bracket (6).

4. The cold-bent independent curved surface backlight module according to claim 1, characterized in that, The die-cast frame bracket (6) and the rear shell (8) are respectively provided with matching threaded holes, and multiple sets of fixing screws (9) are threadedly connected in the threaded holes.

5. The cold-bent independent curved surface backlight module according to claim 1, characterized in that, The adhesive (4) is one of structural adhesive, silicone, and double-sided adhesive.

6. The cold-bent independent curved surface backlight module according to claim 1, characterized in that, The back shell (8) is a plastic shell, and the back shell (8) and the curved glass (1) are the same size.

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