Frame pasting foam jig of display module

Abstract

The utility model discloses a frame pasting foam jig of a display module, which comprises a jig body, the display module to be pasted with foam is contained in the jig body, the display module comprises a cover plate, a display screen and a backlight which are sequentially arranged, the cover plate surface of the display module is downwards arranged in the jig body, and the cover plate surface of the display module is downwards arranged in the jig body. Foam used for being attached to the periphery of the cover plate is arranged on the jig body, the foam comprises an alignment PET film used for alignment, and an alignment assembly used for conducting alignment pasting on the foam is arranged between the alignment PET film and the jig body. The jig is used for facilitating adhesion between the foam and the cover plate, and the effect of ensuring the foam adhesion yield and efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a frame-sticking foam jig of a display module. Background Art

[0002] Intelligence has become a standard feature of today’s cars, and there are more and more smart displays inside the car, such as central control screens, instrument panels, co-pilot displays, etc. The rearview mirror display is an indispensable part, which has also driven the increase in display screens in module factories.

[0003] The vehicle display module includes a cover plate, a display screen and a backlight. The display screen and the backlight are assembled and fixed. The vehicle display screen and the cover plate are fully bonded with solid glue. After the display module is assembled, it needs to be fully bonded with the housing. In order to achieve better sealing, double-sided adhesive foam is often used for bonding. This double-sided adhesive foam is required to be bonded around the edge of the cover plate of the vehicle display screen first. However, the width of conventional double-sided adhesive foam is small, which is easy to deform when the cover plate is bonded, affecting the bonding efficiency and yield. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a frame-sticking foam jig for a display module.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A display module frame-pasting foam jig comprises: a jig body, a display module to be laminated with foam is placed in the jig body, the display module comprises a cover plate, a display screen and a backlight arranged in sequence, the cover plate of the display module is placed face down in the jig body, the jig body is provided with foam for being attached to the four sides of the cover plate, the foam comprises an alignment PET film for alignment, and an alignment component for aligning and pasting the foam is arranged between the alignment PET film and the jig body.

[0007] In one embodiment, the fixture body includes a red pad and a placement groove opened on the red pad, the size of the placement groove is adapted to the size of the cover plate, and the display module is placed in the placement groove with one side of the cover plate facing downward.

[0008] In one embodiment, a protective film is attached to the surface of the cover plate, a first tear handle is extended outward from one side of the protective film, and a receiving groove is provided in the red pad relative to the position of the first tear handle, and the first tear handle is placed in the receiving groove accordingly.

[0009] In one embodiment, the red pad is provided with taking-in and placing grooves for conveniently taking-in and placing the display module on two outer sides of the red pad relative to the display module, and the taking-in and placing grooves are provided along the thickness direction of the red pad.

[0010] In one embodiment, the foam also includes a heavy release film, a double-sided adhesive foam body and a light release film stacked in sequence from top to bottom, and the side of the foam after the light release film is torn off is adhered to the four sides of the cover plate, and the alignment PET film is located above the heavy release film, and the alignment PET film is sticky on the side facing the heavy release film.

[0011] In one embodiment, the heavy release film is used to protect the display module that is not attached to the housing frame, and a second tear handle is extended outwardly from one side of the heavy release film.

[0012] In one embodiment, both upper and lower sides of the double-sided adhesive foam body are adhesive, and the adhesiveness of the double-sided adhesive foam body facing the heavy release film is stronger than the adhesiveness of the double-sided adhesive foam body facing the light release film.

[0013] In one embodiment, the light release film is used to protect the double-sided adhesive foam body that is not attached to the periphery of the cover plate, and a third tear handle is extended outward from one side of the light release film.

[0014] In one embodiment, a through hole is provided between the alignment PET film, the heavy release film and the double-sided adhesive foam body. The through hole is provided at the position of the alignment PET film, the heavy release film and the double-sided adhesive foam body relative to the backlight. The through hole passes through the upper and lower sides of the alignment PET film, the heavy release film and the double-sided adhesive foam body.

[0015] In one embodiment, the alignment component includes alignment posts respectively arranged near the four corners of the red pad and four alignment holes correspondingly opened on the alignment PET film. The size of the alignment PET film is larger than the size of the placement groove. The alignment PET film is located on the upper surface of the red pad. The four alignment holes on the alignment PET film are opened relative to the positions of the four alignment posts. When the foam is adhered to the cover plate, the four alignment posts are correspondingly plugged into the four alignment holes.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The utility model discloses a frame-pasting foam jig for a display module. The jig and the foam are arranged so that when the foam and the cover plate are pasted, the cover plate of the display module is first placed face down in the jig body, and then the light release film of the foam is torn off and placed on the jig body. During the pasting process, the alignment holes of the PET film are aligned and plugged with the alignment columns of the jig body to locate the position of the foam, thereby ensuring the yield and efficiency of the foam pasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 A schematic diagram of the structure of a frame-mounted foam fixture for a display module provided by the utility model;

[0020] Figure 2 A schematic diagram of the side cross-sectional structure of a display module in a frame-mounted foam fixture of a display module provided by the utility model;

[0021] Figure 3 A schematic diagram of the structure of a fixture body in a frame-mounted foam fixture for a display module provided by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the stacking structure of foam in a frame-mounted foam fixture of a display module.

[0023] Description of the drawings: 10. Fixture body; 11. Red pad; 12. Placement slot; 13. Accommodation slot; 14. Pick-up and drop slot; 15. Alignment column; 20. Display module; 21. Cover plate; 22. Display screen; 23. Backlight; 30. Protective film; 31. First tear handle; 40. Foam; 41. Alignment PET film; 411. Alignment hole; 42. Heavy release film; 421. Second tear handle; 43. Double-sided sticky foam body; 44. Light release film; 441. Third tear handle; 50. Through hole. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0025] A frame-mounted foam fixture for a display module, referring to Figure 1 and Figure 2, including a jig body 10, the jig body 10 contains a display module 20 to be bonded with foam 40, the display module 20 includes a cover plate 21, a display screen 22 and a backlight 23 arranged in sequence, the cover plate 21 is bonded and fixed with the display screen 22, the display screen 22 is contained in the backlight 23, the size of the cover plate 21 is larger than the size of the display screen 22 and the backlight 23, after the cover plate 21 is bonded with the display screen 22, the four sides of the cover plate 21 are located outside the display screen 22. A protective film 30 is attached to the upper surface of the cover plate 21, and a first tear handle 31 extends outward from one side of the protective film 30.

[0026] Reference Figure 3 The fixture body 10 includes a red pad 11 and a placement groove 12 opened on the red pad 11. The size of the placement groove 12 is adapted to the size of the cover plate 21. The display module 20 is placed in the placement groove 12 with the side of the cover plate 21 facing downward. The fixture body 10 is provided with a receiving groove 13 at a position relative to the first tearing handle 31. When the cover plate 21 of the display module 20 is received in the placement groove 12, the first tearing handle 31 is correspondingly received in the receiving groove 13.

[0027] Further, refer to Figure 3 The depth of the placement groove 12 is half the thickness of the cover plate 21 plus the thickness of the protective film 30 . The placement groove 12 is used to fix the position of the cover plate 21 so as to facilitate the subsequent attachment of the foam 40 .

[0028] Reference Figure 3 The red pad 11 is provided with a pick-up and placement groove 14 on both sides relative to the display module 20. The pick-up and placement groove 14 is provided along the thickness direction of the red pad 11. The pick-up and placement groove 14 is connected with the placement groove 12 and the outside respectively. The pick-up and placement groove 14 facilitates the pick-up and placement operation of the display module 20.

[0029] Reference Figure 1 and Figure 4 The fixture body 10 is provided with a foam 40 for attaching to the periphery of the cover plate 21. The foam 40 includes a aligning PET film 41, a heavy release film 42, a double-sided adhesive foam body 43, and a light release film 44 stacked in sequence from top to bottom. The side of the foam 40 after the light release film 44 is torn off fits the periphery of the cover plate 21. The aligning PET film 41 is located at the top of the foam 40 and is used to support the entire foam 40 to ensure the flatness during pasting and prevent the double-sided adhesive foam body 43 from deforming. The aligning PET film 41 is pasted and fixed to the heavy release film 42, and the aligning PET film 41 is sticky on the side facing the heavy release film 42.

[0030] Reference Figure 4The heavy release film 42 is located below the alignment PET film 41. The heavy release film 42 is used to be torn off when the display module 20 is assembled and attached to the housing. The heavy release film 42 is used to protect the display module 20 that is not attached to the housing frame. A second tear handle 421 extends outward from one side of the heavy release film 42. The second tear handle 421 is used to facilitate tearing off the heavy release film 42.

[0031] Reference Figure 4 The double-sided adhesive foam body 43 is located below the heavy release film 42. Both the upper and lower sides of the double-sided adhesive foam body 43 are adhesive, and are used to adhere to the heavy release film 42 and the light release film 44. Among them, the adhesiveness of the double-sided adhesive foam body 43 facing the heavy release film 42 is stronger than the adhesiveness of the double-sided foam body 40 facing the light release film 44. Therefore, when peeling off the heavy release film 42 and the light release film 44, the light release film 44 is easier to peel off.

[0032] Reference Figure 1 A through hole 50 is provided between the alignment PET film 41, the heavy release film 42 and the double-sided adhesive foam body 43. The through hole 50 is provided at a position of the alignment PET film 41, the heavy release film 42 and the double-sided adhesive foam body 43 relative to the backlight 23. The through hole 50 is used to avoid the backlight 23 for the alignment PET film 41, the heavy release film 42 and the double-sided adhesive foam body 43. The through hole 50 runs through the upper and lower sides of the alignment PET film 41, the heavy release film 42 and the double-sided adhesive foam body 43.

[0033] Reference Figure 4 The light release film 44 is located below the double-sided adhesive foam body 43, and the light release film 44 is used to protect the double-sided adhesive foam body 43 that is not attached to the cover plate 21. A third tear handle 441 extends outward from one side of the light release film 44, and the third tear handle 441 is used to easily tear off the light release film 44.

[0034] Reference Figure 1 An alignment component for aligning and pasting the foam 40 is arranged between the alignment PET film 41 and the fixture body 10. The alignment component includes alignment posts 15 respectively arranged near the four corners of the red cushion 11 and four alignment holes 411 opened on the alignment PET film 41. The alignment posts 15 are made of PVC. Among them, the size of the alignment PET film 41 is larger than the size of the placement groove 12, and the alignment PET film 41 is located on the upper surface of the red cushion 11. The alignment PET film 41 is used for positioning when the double-sided adhesive foam body 43 is attached to the cover plate 21 on all sides. The alignment holes 411 on the alignment PET film 41 are opened relative to the positions of the four alignment posts 15. When the foam 40 is pasted on the cover plate 21, the alignment PET film 41 is placed on the fixture body 10, and the four alignment posts 15 are correspondingly inserted into the four alignment holes 411 to fix the position of the foam 40, so as to facilitate the pasting operation.

[0035] Reference Figure 1-4 When the display module 20 and the foam 40 are pasted together, the cover plate 21 of the display module 20 is placed face down in the placement groove 12, and the first tear handle 31 of the protective film 30 is placed in the receiving groove 13 to fix the position of the display module 20. The light release film 44 is torn off by the third tear handle 441, so that the double-sided adhesive foam body 43 faces downward. During the downward pasting process, the alignment PET film 41 reaches the surface of the jig body 10, and the four alignment posts 15 on the jig body 10 are aligned and plugged with the four alignment holes 411 of the alignment PET film 41, and the foam 40 is pressed downward so that the foam 40 is pasted to the surrounding positions of the cover plate 21, thereby completing the pasting of the display module 20 and the foam 40. The heavy release film 42 and the alignment PET film 41 are torn off by the second tear handle 421 when the display module 20 is assembled with the housing.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A frame-mounted foam fixture for a display module, characterized in that: include: A jig body (10) is provided with a display module (20) to which a foam (40) is to be attached, the display module (20) comprising a cover plate (21), a display screen (22) and a backlight (23) which are arranged in sequence, the cover plate (21) of the display module (20) is placed face down in the jig body (10), the jig body (10) is provided with foam (40) for attaching to the periphery of the cover plate (21), the foam (40) comprises an alignment PET film (41) for alignment, and an alignment component for aligning and pasting the foam (40) is provided between the alignment PET film (41) and the jig body (10).

2. A frame-attached foam jig for a display module according to claim 1, characterized in that: The fixture body (10) comprises a red pad (11) and a placement groove (12) opened on the red pad (11); the size of the placement groove (12) is adapted to the size of the cover plate (21); and the display module (20) is placed in the placement groove (12) with one side of the cover plate (21) facing downward.

3. A frame-attached foam jig for a display module according to claim 2, characterized in that: A protective film (30) is attached to the surface of the cover plate (21), a first tear handle (31) is extended outwardly from one side of the protective film (30), and a receiving groove (13) is provided on the red pad (11) at a position relative to the first tear handle (31), and the first tear handle (31) is correspondingly placed in the receiving groove (13).

4. The frame-attaching foam jig of a display module according to claim 3, characterized in that: The red pad (11) is provided with a pick-up and placement groove (14) on both outer sides relative to the display module (20) for conveniently picking up and placing the display module (20), and the pick-up and placement groove (14) is provided along the thickness direction of the red pad (11).

5. The frame-attaching foam jig of a display module according to claim 2, characterized in that: The foam (40) also includes a heavy release film (42), a double-sided adhesive foam body (43) and a light release film (44) stacked in sequence from top to bottom. The side of the foam (40) after the light release film (44) is torn off fits the four sides of the cover plate (21). The alignment PET film (41) is located above the heavy release film (42), and the alignment PET film (41) is sticky on the side facing the heavy release film (42).

6. The frame-attaching foam jig of a display module according to claim 5, characterized in that: The heavy release film (42) is used to protect the display module (20) that is not attached to the housing frame, and a second tear handle (421) is extended outwardly from one side of the heavy release film (42).

7. A frame-attached foam jig for a display module according to claim 6, characterized in that: The upper and lower sides of the double-sided adhesive foam body (43) are both adhesive, and the adhesiveness of the side of the double-sided adhesive foam body (43) facing the heavy release film (42) is stronger than the adhesiveness of the side of the double-sided adhesive foam body (43) facing the light release film (44).

8. The frame-attaching foam jig of a display module according to claim 7, characterized in that: The light release film (44) is used to protect the double-sided adhesive foam body (43) that is not attached to the periphery of the cover plate (21), and a third tear handle (441) is extended outwardly from one side of the light release film (44).

9. A frame-attached foam jig for a display module according to claim 8, characterized in that: A through hole (50) is provided between the alignment PET film (41), the heavy release film (42) and the double-sided adhesive foam body (43); the through hole (50) is provided at the position of the alignment PET film (41), the heavy release film (42) and the double-sided adhesive foam body (43) relative to the backlight (23); the through hole (50) passes through the upper and lower sides of the alignment PET film (41), the heavy release film (42) and the double-sided adhesive foam body (43).

10. A frame-attached foam jig for a display module according to claim 9, characterized in that: The alignment component comprises alignment posts (15) respectively arranged at four corners of the red pad (11) and four alignment holes (411) correspondingly opened on the alignment PET film (41); the size of the alignment PET film (41) is larger than the size of the placement groove (12); the alignment PET film (41) is located on the upper surface of the red pad (11); the four alignment holes (411) on the alignment PET film (41) are opened relative to the positions of the four alignment posts (15); when the foam (40) is adhered to the cover plate (21), the four alignment posts (15) are correspondingly plugged into the four alignment holes (411).

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