A device for securing and fixing optical films in an F-fold TV backlight module

Abstract

This utility model relates to a locking and fixing device for optical films in an F-fold TV backlight module, comprising an elastic locking component hidden within the cavity of the F-fold back panel. The elastic locking component includes a side plate, with integrally formed spring tabs at its upper and lower ends. Each spring tab includes an elastic clamping portion and an elastic pressing portion located at the free end of the elastic clamping portion. A clamping groove is formed between the elastic clamping portions of the two spring tabs, used to elastically clamp the sides of the stacked optical film and diffuser plate. The outer surface of the side plate is bonded and fixed to the inner wall of the F-fold back panel cavity via an adhesive layer. The elastic pressing portions of the two spring tabs respectively press against the top and bottom walls of the F-fold back panel cavity. This utility model effectively prevents the optical film and diffuser plate from shaking back and forth during transportation or vibration testing, avoiding problems such as black spots caused by contact between the film and the LCD panel, vibration white spots caused by contact with the laminating auxiliary materials, and film detachment, thereby significantly reducing the product defect rate.

Description

Technical Field

[0001] This utility model relates to the field of backlight module technology, specifically to an optical film clamping and fixing device for an F-fold TV backlight module. Background Technology

[0002] like Figure 1 As shown, the current industry solution for restricting the movement of the optical film 02 in the cavity 011 of the F-fold backplate 01 of a TV backlight module is to attach a film-pressing auxiliary material 04 to the top cavity wall of the cavity 011. There is a gap between the film-pressing auxiliary material 04 and the optical film 02. During transportation and vibration tests, the optical film 02 and the diffuser plate 03 will shake back and forth. The optical film 02 will produce black spots when it comes into contact with the liquid crystal panel 05, and will produce white spots due to vibration when it comes into contact with the film-pressing auxiliary material 04. Furthermore, the optical film 02 may jump off during vibration and instantaneous drop. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an optical film clamping and fixing device for F-fold TV backlight module.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An optical film locking and fixing device for an F-fold TV backlight module includes an elastic locking component hidden in the cavity of the F-fold back panel. The elastic locking component includes a side plate, and the upper and lower ends of the side plate are respectively provided with spring pieces integrally formed therewith. The spring pieces include an elastic clamping part and an elastic pressing part located at the free end of the elastic clamping part. A clamping groove is formed between the elastic clamping parts of the two spring pieces. The clamping groove is used to elastically clamp the side of the stacked optical film and diffuser plate. The outer side of the side plate is bonded and fixed to the inner sidewall of the cavity of the F-fold back panel by an adhesive layer. The elastic pressing parts of the two spring pieces abut against the top wall and bottom wall of the cavity of the F-fold back panel, respectively.

[0006] Furthermore, the spring clips at the upper and lower ends of the side plate are symmetrically arranged.

[0007] Furthermore, the elastic pressure-bearing part is folded back and extends towards the back plate, and an elastic deformation space is formed between the elastic pressure-bearing part and the elastic clamping part.

[0008] Furthermore, the free end of the elastically compressed portion is provided with an arc-shaped portion extending toward the elastically clamping portion.

[0009] Furthermore, the elastic locking element is made entirely of ABS material or stainless steel sheet.

[0010] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0011] 1. Flexible clamping components are used to clamp and fix the sides of the stacked optical film and diffuser plate, eliminating the gap between the traditional lamination auxiliary materials and the optical film. This effectively prevents the optical film and diffuser plate from shaking back and forth during transportation or vibration testing. This avoids problems such as black spots caused by contact between the film and the LCD panel, vibration white spots caused by contact with the lamination auxiliary materials, and film detachment, thus significantly reducing the product defect rate.

[0012] 2. The flexible snap-fit ​​component is easy to operate and has high assembly efficiency, saving more manpower and shortening assembly time compared to traditional pressure film auxiliary material structures.

[0013] 3. The elastic locking component and the cavity of the F-fold back panel are elastically squeezed together for a firm fixation, ensuring that the optical film and diffuser plate no longer wobble within the module. This enhances the vibration and impact resistance of the backlight module and improves product durability. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 This is a schematic diagram of the existing method for fixing optical films;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0017] like Figure 2 As shown, this utility model discloses an optical film locking and fixing device for an F-fold TV backlight module, including an elastic locking component 1. The elastic locking component 1 is made of ABS material or stainless steel sheet or other conventional elastic materials.

[0018] The elastic latching component 1 is hidden in the cavity 21 of the F-fold back plate 2. The elastic latching component 1 includes a side plate 11. The upper and lower ends of the side plate 11 are respectively provided with spring pieces 12 integrally formed therewith. The spring pieces 12 at the upper and lower ends are symmetrically arranged.

[0019] The spring piece 12 includes an elastic clamping portion 121 and an elastic pressure-receiving portion 122 located at the free end of the elastic clamping portion 121. A clamping groove 14 is formed between the elastic clamping portions 121 of the two spring pieces 12. The clamping groove 14 is used to elastically clamp the sides of the stacked optical film 3 and diffuser plate 4. The elastic pressure-receiving portion 122 extends towards the back plate after being folded back, and an elastic deformation space is formed between the elastic pressure-receiving portion 122 and the elastic clamping portion 121. The free end of the elastic pressure-receiving portion 122 is provided with an arc-shaped portion 123 extending towards the elastic clamping portion 121. The design of the arc-shaped portion 123 facilitates pushing the entire elastic engaging member 1 into the cavity 21 of the F-fold back plate 2.

[0020] The outer side of the side plate 11 is bonded and fixed to the inner wall of the cavity 21 of the F-fold back plate 2 by the adhesive layer 13, and the elastic pressure-bearing parts 122 of the two spring pieces 12 press against the top wall and bottom wall of the cavity 21 of the F-fold back plate 2 respectively.

[0021] The installation method of this utility model is as follows: The upper and lower end spring pieces 12 of the elastic locking component 1 are clamped and fixed to the sides of the stacked optical film 3 and diffuser plate 4. The release paper of the adhesive layer 13 is peeled off. Then, the side plate 11 of the elastic locking component 1 is aligned with the side opening of the cavity 21 of the F-fold back plate 2. Finally, the entire elastic locking component 1 is pushed into the cavity 21 of the F-fold back plate 2. The elastic pressure-bearing parts 122 of the upper and lower spring pieces 12 are forced to press against the top and bottom walls of the cavity 21 of the F-fold back plate 2. Under the pressure of the elastic pressure-bearing parts 122, the elastic clamping parts 121 of the two spring pieces 12 further clamp and fix the optical film 3 and diffuser plate 4, effectively ensuring that the optical film 3 and diffuser plate 4 no longer shake in the module, thus enhancing the vibration resistance and impact resistance of the backlight module.

[0022] It should be noted that the number of elastic locking parts 1 in this utility model is set according to the side length of the optical film 3 and the diffuser plate 4.

[0023] The specific embodiments of this utility model have been described above. However, those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this embodiment without departing from the principle and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A device for locking and fixing optical films in an F-fold TV backlight module, characterized in that: The device includes an elastic locking component, which is hidden in the cavity of the F-fold back panel. The elastic locking component includes a side plate, and the upper and lower ends of the side plate are respectively provided with spring pieces integrally formed therewith. The spring pieces include an elastic clamping part and an elastic pressing part located at the free end of the elastic clamping part. A clamping groove is formed between the elastic clamping parts of the two spring pieces. The clamping groove is used to elastically clamp the sides of the stacked optical film and diffuser plate. The outer side of the side plate is bonded and fixed to the inner side wall of the cavity of the F-fold back panel by an adhesive layer. The elastic pressing parts of the two spring pieces press against the top wall and bottom wall of the cavity of the F-fold back panel, respectively.

2. The optical film clamping and fixing device for an F-fold TV backlight module according to claim 1, characterized in that: The spring clips at the top and bottom ends of the side plate are symmetrically arranged.

3. The F-fold TV backlight module optical film piece snap-on fixing device according to claim 1, characterized in that: The elastic pressure-bearing part is folded back and extends towards the back plate, and an elastic deformation space is formed between the elastic pressure-bearing part and the elastic clamping part.

4. The F-fold TV backlight module optical film piece snap-on fixing device according to claim 3, characterized in that: The free end of the elastic compression portion is provided with an arc-shaped portion extending toward the elastic clamping portion.

5. The F-fold TV backlight module optical film piece snap-on fixing device according to claim 1 or 4, characterized in that: The elastic locking component is made entirely of ABS material or stainless steel sheet.

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