Display module IR hole edge shading glue attaching jig

Abstract

The utility model discloses a display module IR hole edge shading glue attaching jig, which belongs to the field of display screen production tooling, and comprises a bottom plate, a machine base, a guide rail, a movable guide block, a shading glue positioning block and a tension spring, the machine base is fixedly connected to one side of the bottom plate, an inclined working surface is arranged on the machine base, the guide rail is arranged on the working surface, and the movable guide block is arranged on the guide rail. The movable guide block is movably installed on the guide rail, the shading glue positioning block is installed on one side of the movable guide block, a positioning column is further arranged on the side, close to the bottom plate, of the shading glue positioning block, and the two ends of the tension spring are connected with the movable guide block and the machine base respectively. The shading glue pasting jig has the advantages that accurate pasting of shading glue can be achieved through the jig; the movable guide block can be automatically reset under the action of the tension spring, so that shading glue consumables can be conveniently placed; pressure is provided through the adhesive pressing device, the shading adhesive is pasted in an auxiliary mode, and therefore the uneven display module can be pasted.

Description

Technical Field

[0001] The present invention relates to the field of display screen production tooling, and particularly to a jig for attaching a light-shielding adhesive tape to the edge of an IR hole of a display module. Background Art

[0002] In feature phones and consumer models, a photosensitive hole structure is usually provided on the surface of the display module, that is, a photosensitive hole is opened through a form of a multi-layer ink covering plate on the edge of the panel. Since the photosensitive hole of the cover plate and the backlight edge of the display screen are in a close structure, in order to avoid the light beam of the lit backlight affecting the photosensitive hole, during the production process of the display module assembly, a light-shielding adhesive tape is pre-stuck on the side of the module backlight close to the photosensitive hole of the cover plate to ensure that the photosensitive hole is not affected by the backlight beam of the module after it is lit during the whole machine use.

[0003] At present, such a light-shielding adhesive tape structure is small, thin in thickness and soft as a whole. The cost of using automatic equipment is quite high. Currently, the industry is basically completed by manual operation. However, manual operation is prone to problems such as deviation, resulting in poor light leakage and residual glue.

[0004] Therefore, how to design a general jig for attaching and positioning the light-shielding adhesive tape is a technical problem that the industry urgently needs to solve. Utility Model Content

[0005] In order to solve the problem that the light-shielding adhesive tape structure at the edge of the IR hole of the existing display module is small and not easy to paste, a jig for attaching the light-shielding adhesive tape to the edge of the IR hole of the display module is designed.

[0006] A jig for attaching a light-shielding adhesive tape to the edge of an IR hole of a display module includes a bottom plate, a machine base, a guide rail, a movable guide block, a light-shielding adhesive tape positioning block and a tension spring. The machine base is fixedly connected to one side of the bottom plate. An inclined working surface is provided on the machine base, and a guide rail is provided on this working surface. The movable guide block is movably installed on the guide rail. The light-shielding adhesive tape positioning block is installed on one side of the movable guide block. A positioning column is further provided on the side of the light-shielding adhesive tape positioning block close to the bottom plate. Both ends of the tension spring are respectively connected to the movable guide block and the machine base.

[0007] Preferably, two fixing grooves are provided on the light-shielding adhesive tape positioning block. A waist-shaped hole is provided at the bottom of the fixing groove. A bolt hole is provided on the movable guide block. The bolt passes through the waist-shaped hole and is fixed in the bolt hole, so that the light-shielding adhesive tape positioning block is fixed on the movable guide block.

[0008] Preferably, two guide plates are provided at the front end of the movable guide block. The light-shielding adhesive tape positioning block is located between the two guide plates.

[0009] Preferably, a glue pressing device is further provided on the light-shielding glue positioning block, and the glue pressing device includes a pressing plate, a spring, a rotating shaft and a dial. An installation groove is provided at the bottom of the light-shielding glue positioning block, a round hole penetrating through one end is provided in the middle of the light-shielding glue positioning block, a rotating shaft hole is provided on the pressing plate, the rotating shaft passes through the round hole and the rotating shaft hole to fix the pressing plate on the light-shielding glue positioning block, and the pressing plate rotates around the rotating shaft. Two ends of the spring are respectively connected to the pressing plate and the light-shielding glue positioning block, and the dial is installed on the pressing plate.

[0010] Preferably, a handle is further installed on the light-shielding glue positioning block.

[0011] Preferably, a bracket is provided on the machine base, and a limit screw is provided on the bracket, and the head of the limit screw abuts against the movable guide block.

[0012] Preferably, a magnet is further provided on the machine base, a screw is provided on the movable guide block, and the position of the magnet matches that of the screw.

[0013] Advantages of the present utility model: 1. Accurate pasting of the light-shielding glue can be achieved through this fixture; 2. The movable guide block can automatically reset under the action of the tension spring, which is convenient for placing the light-shielding glue consumables; 3. Pressure is provided through the glue pressing device to assist in pasting the light-shielding glue, so that an uneven display module can be pasted. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the display module;

[0015] Figure 2 is a side view of the display module structure;

[0016] Figure 3 is a schematic structural diagram of the release film and the light-shielding glue;

[0017] Figure 4 is a schematic structural diagram of the attaching fixture of the present utility model Figure 1 ;

[0018] Figure 5 is a schematic structural diagram of the attaching fixture of the present utility model Figure 2 ;

[0019] Figure 6 is an exploded view of the attaching fixture of the present utility model;

[0020] Figure 7 is a schematic structural diagram of the light-shielding glue positioning block of the present utility model Figure 1 ;

[0021] Figure 8 is a schematic structural diagram of the light-shielding glue positioning block of the present utility model Figure 2 ;

[0022] Figure 9It is a schematic structural diagram of the glue pressing device of the present utility model;

[0023] Figure 10 It is a cross-sectional view of the light-shielding glue positioning block of the present utility model.

[0024] In the figure: 1. Base plate; 2. Machine base; 21. Working surface; 22. Bracket; 23. Limit screw; 24. Magnet; 3. Guide rail; 4. Movable guide block; 41. Bolt hole; 42. Guide plate; 43. Screw; 5. Light-shielding glue positioning block; 51. Positioning column; 52. Fixed groove; 53. Slot hole; 54. Installation groove; 55. Round hole; 6. Tension spring; 7. Glue pressing device; 71. Pressing plate; 711. Rotating shaft hole; 72. Spring; 73. Rotating shaft; 74. Paddle; 8. Handle; 101. Backlight module; 102. Display module; 103. Glass cover plate. Specific embodiments

[0025] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0026] To illustrate this attaching fixture, first, the structure of the display module will be introduced. As Figure 1-2 shown, the display module includes a backlight module 101, a display module 102, and a glass cover plate 103 that are connected in sequence. The IR hole is opened on the glass cover plate 103. To prevent the light beam generated by the backlight module 101 from affecting the IR hole, it is necessary to paste light-shielding glue on the display module 102 and the glass cover plate 103 at the IR hole to block the light.

[0027] As Figure 3 shown, it is the light-shielding glue and the release film carrying the light-shielding glue. A pair of positioning holes are provided on the release film, and the release film is installed on the attaching fixture through the positioning holes.

[0028] As Figure 4 shown, a display module IR hole edge light-shielding glue attaching fixture includes a base plate 1, a machine base 2, a guide rail 3, a movable guide block 4, a light-shielding glue positioning block 5, and a tension spring 6. A positioning block is provided on the base plate 1, and the position of the positioning block matches the size of the display module. The machine base 2 is fixedly connected to one side of the base plate 1. The machine base 2 is triangular in shape. An inclined working surface 21 is provided on the machine base 2. The working surface 21 is close to one side of the base plate 1. A guide rail 3 is provided on the working surface 21. The movable guide block 4 is movably installed on the guide rail 3, and the movable guide block 4 can slide on the guide rail 3. The light-shielding glue positioning block 5 is installed on one side of the movable guide block 4. A positioning column 51 is further provided on the side of the light-shielding glue positioning block 5 close to the base plate 1. The size of the positioning column 51 matches the positioning hole of the release film, so as to fix the release film on the light-shielding glue positioning block 5. The two ends of the tension spring 6 are respectively connected to the movable guide block 4 and the machine base 2.

[0029] In the initial state, due to the action of the tension spring 6, the movable guide block 4 and the light-shielding adhesive positioning block 5 are pulled to the top of the machine base 2. When in use, first place the display module on the bottom plate 1, then place the release film with the light-shielding adhesive on the positioning posts 51 and push it to the movable guide block 4, thereby pushing the light-shielding adhesive positioning block 5 towards the display module, and pasting the light-shielding adhesive on the release film on the edge side of the IR hole of the display module.

[0030] For different display modules, their heights may be different. Therefore, two fixing slots 52 are provided on the light-shielding adhesive positioning block 5, and a waist-shaped hole 53 is provided at the bottom of the fixing slot 52. A bolt hole 41 is provided on the movable guide block 4, and the bolt passes through the waist-shaped hole 53 and is fixed in the bolt hole 41, so that the light-shielding adhesive positioning block 5 is fixed on the movable guide block 4. Due to the provision of the waist-shaped hole 53, the light-shielding adhesive positioning block 5 can move relative to the movable guide block 4, thereby adjusting the height of the light-shielding adhesive relative to the bottom plate 1 and the display module.

[0031] Due to the provision of the waist-shaped hole 53, in order to prevent the light-shielding adhesive positioning block 5 from being non-horizontal, two guide plates 42 are provided at the front end of the movable guide block 4. The guide plates 42 and the movable guide block 4 enclose a groove, and the light-shielding adhesive positioning block 5 is assembled between the two guide plates 42, so that the light-shielding adhesive positioning block 5 can always remain horizontal.

[0032] As Figure 2 shown, since the display module 102 and the backlight module 101 are not flat, and the height position of the display module 102 is lower than that of the backlight module 101, a pressure adhesive device 7 is also provided at the bottom of the light-shielding adhesive positioning block 5. The pressure adhesive device 7 is used to press the light-shielding adhesive onto the display module 102 with a lower height. The pressure adhesive device 7 includes a pressing plate 71, a spring 72, a rotating shaft 73 and a dial 74. An installation groove 54 is provided at the bottom of the light-shielding adhesive positioning block 5, and a circular hole 55 that penetrates at one end is provided in the middle of the light-shielding adhesive positioning block 5. A rotating shaft hole 711 is provided on the pressing plate 71. The rotating shaft 73 passes through the circular hole 55 and the rotating shaft hole 711 to fix the pressing plate 71 on the light-shielding adhesive positioning block 5, and the pressing plate 71 rotates around the rotating shaft 73. The two ends of the spring 72 are respectively connected to the pressing plate 71 and the light-shielding adhesive positioning block 5. The dial 74 is installed on the pressing plate 71. Under the action of the elastic force of the spring 72, the dial 74 generates an outward thrust, thereby pushing the light-shielding adhesive on the release film towards the display module 102.

[0033] To facilitate the film pasting operation, a handle 8 is also installed on the movable guide block 4.

[0034] When applying the film, the movable guide block 4 and the light-shielding adhesive positioning block 5 will slide towards the bottom plate 1. If the sliding is excessive, it will exert too much pressure on the display module, thereby causing damage to the display module. A bracket 22 is provided on the base 2, and a limit screw 23 is provided on the bracket 22. The head of the limit screw 23 abuts against the movable guide block 4. By adjusting the limit screw 23, the lowest position where the movable guide block 4 can slide down can be restricted.

[0035] A magnet 24 is also provided on the base 2. A screw 43 is provided on the movable guide block 4. The position of the magnet 24 matches that of the screw 43, and the magnet 24 can be adsorbed to the screw 43. When the movable guide block 4 is at the initial top position, the magnet 24 will attract the screw 43, thereby fixing the movable guide block 4, which is convenient for installing the release film.

[0036] Working process: Initially, due to the action of the tension spring 6 and the magnet 24, the movable guide block 4 and the light-shielding adhesive positioning block 5 are pulled to the top position of the base 2. When in use, first adjust the position of the light-shielding adhesive positioning block 5 on the movable guide block 4 so that the light-shielding adhesive can be aligned with the display module 102 and the backlight module 101. Place the display module on the bottom plate 1, and then place the release film with the light-shielding adhesive on the positioning post 51 and push it to the movable guide block 4 through the handle 8, thereby pushing the light-shielding adhesive positioning block 5 towards the display module. At this time, the release film and the light-shielding adhesive approach the display module, and finally the light-shielding adhesive is pasted on the display module 102 and the backlight module 101 on the edge side of the IR hole of the display module. At the same time, the glue pressing device 7 will press the light-shielding adhesive on the display module 102;

[0037] After pasting, release the handle 8. Under the action of the tension spring 6, the light-shielding adhesive positioning block 5 slides upward to reset, the release film and the light-shielding adhesive are separated, and the movable guide block 4 finally moves to the top of the base 2 and is fixed under the action of the magnet 24. Repeat this process to paste the next one.

[0038] This light-shielding adhesive pasting fixture realizes the accurate pasting of the light-shielding adhesive, solves the positioning problem of the light-shielding adhesive, and through the glue pressing device, the light-shielding adhesive is stuffed into the inner side of the step between the display module glass of the backlight module, while avoiding the IR hole on the glass cover plate to prevent the residue of the edge glue of the light-shielding adhesive on the surface of the IR hole.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A jig for attaching a light-shielding adhesive tape to the edge of an IR hole of a display module, characterized in that, The invention comprises a base plate (1), a machine base (2), a guide rail (3), a movable guide block (4), a light shielding adhesive positioning block (5) and a tension spring (6); the machine base (2) is fixedly connected to one side of the base plate (1); an inclined working surface (21) is provided on the machine base (2); a guide rail (3) is provided on the working surface (21); the movable guide block (4) is movably mounted on the guide rail (3); the light shielding adhesive positioning block (5) is mounted on one side of the movable guide block (4); a positioning column (51) is further provided on the side of the light shielding adhesive positioning block (5) close to the base plate (1); and two ends of the tension spring (6) are respectively connected to the movable guide block (4) and the machine base (2).

2. The light-shielding adhesive attaching fixture for the IR hole edge of a display module according to claim 1, wherein The light shielding adhesive positioning block (5) is provided with two fixing grooves (52), the bottom of the fixing groove (52) is provided with a waist hole (53), the movable guide block (4) is provided with a bolt hole (41), and the bolt passes through the waist hole (53) and is fixed on the bolt hole (41), so that the light shielding adhesive positioning block (5) is fixed on the movable guide block (4).

3. The light-shielding adhesive attaching jig for the IR hole edge of a display module according to claim 2, wherein, Two guide plates (42) are provided at the front end of the movable guide block (4), and the light shielding glue positioning block (5) is located between the two guide plates (42).

4. A jig for attaching a light-shielding adhesive tape to the edge of an IR hole of a display module according to claim 1, characterized in that The shading glue positioning block (5) is also provided with a glue pressing device (7) at the bottom, and the glue pressing device (7) comprises a pressing plate (71), a spring (72), a rotating shaft (73) and a paddle (74). The shading glue positioning block (5) is provided with a mounting groove (54) at the bottom, and a circular hole (55) with one end passing through is provided in the middle of the shading glue positioning block (5). The pressing plate (71) is provided with a rotating shaft hole (711), and the rotating shaft (73) passes through the circular hole (55) and the rotating shaft hole (711), so that the pressing plate (71) is fixed on the shading glue positioning block (5), and the pressing plate (71) rotates around the rotating shaft (73). The two ends of the spring (72) are respectively connected to the pressing plate (71) and the shading glue positioning block (5), and the paddle (74) is installed on the pressing plate (71).

5. The light-shielding adhesive attaching fixture for the IR hole edge of a display module according to claim 1, characterized in that, A handle (8) is also installed on the light-shielding adhesive positioning block (5).

6. The light-shielding adhesive attaching jig for the IR hole edge of a display module according to claim 1, wherein, The machine base (2) is provided with a bracket (22), the bracket (22) is provided with a limit screw (23), and the head of the limit screw (23) is pressed against the movable guide block (4).

7. The attaching fixture for the light-shielding adhesive tape at the edge of the IR hole of a display module according to claim 1, wherein, The base (2) is also provided with a magnet (24), the movable guide block (4) is provided with a screw (43), and the position of the magnet (24) matches the screw (43).

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