TDDI touch display module film key assembly fixture

Abstract

The utility model discloses a TDDI touch control display module film button assembling clamp. The TDDI touch control display module film button assembling clamp comprises a first clamp, a second clamp and a third clamp. A first positioning groove is formed in the top of the first clamp. One side of the second clamp is hinged to the first clamp, a second positioning groove is formed in one side of the top of the second clamp, and a strip-shaped movable groove is further formed in the top of the second clamp. One side of the third clamp is hinged to the inner wall of the movable groove, and a pressing head is further integrally formed on the third clamp. Through the designed structures of the first clamp, the second clamp, the third clamp and the like, a folding structure can be designed according to the assembled shape of a display module thin film key, the third clamp is used for bending a thin film key body into a fixed shape, the second clamp is used for vacuum adsorption and stabilization of the thin film key body, and the first clamp is used for positioning and placing a display module body. Therefore, the film key body can be quickly positioned and placed, bent and shaped, and attached to the display module body, and the alignment performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of film keypad assembly fixtures, in particular to a TDDI touch display module film keypad assembly fixture. Background Art

[0002] With the development of touch display technology, TDDI touch display integrated modules have become the mainstream. Because the VA of Incell touch and display is basically the same size, some touch modules with key functions need to add a touch key part, generally by attaching a key film.

[0003] The existing technology has projects with key membranes for production. Membrane keys generally use silver paste for routing. The silver paste is relatively brittle after curing and is easily deformed by external forces and causes an open circuit. The attachment of the existing film is usually done manually, and the accuracy and effect of the positioning attachment are relatively poor during manual operation. The attachment process may also cause the silver paste routing of the membrane key to bend and crack, resulting in poor functional open circuit. Utility Model Content

[0004] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a TDDI touch display module membrane button assembly fixture, including fixture one, fixture two and fixture three; a positioning groove one is provided on the top of the fixture one; one side of the fixture two is hinged to the fixture one, a positioning groove two is provided on one side of the top of the fixture two, and a strip-shaped movable groove is also provided on the top of the fixture two, and the movable groove is connected to the positioning groove two; one side of the fixture three is hinged to the inner wall of the movable groove, and a pressing head is also integrally formed on the fixture three.

[0006] As a further solution of the utility model: a plurality of adsorption holes 1 are provided on the top of the second clamp and at the right side of the inner bottom wall of the second positioning groove, and a plurality of adsorption holes 2 are provided on the inner wall of the second clamp and at the position corresponding to the movable groove.

[0007] As a further solution of the utility model: the plurality of adsorption holes 2 are designed to be bent in the inner cavity of the clamp 2, and the plurality of adsorption holes 2 and the plurality of adsorption holes 1 are respectively connected to the vacuum pump through pipelines.

[0008] As a further solution of the utility model: a support platform is also fixed to the inner bottom wall of the movable groove, and a plurality of adsorption holes three are opened on the top of the support platform, and a plurality of the adsorption holes three are connected to the vacuum pump through pipelines.

[0009] As a further solution of the utility model: a through groove for convenient insertion of the pressing head is reserved between one side of the support platform and the side wall of the second clamp.

[0010] As a further solution of the utility model: it also includes a display module body, the display module body is placed in the first positioning groove with its front side facing downward, and a connector is also installed on the top of the display module body.

[0011] As a further solution of the utility model: it also includes a membrane key body, the membrane key body includes a key segment and a connecting segment, the key segment is placed in the second positioning groove, and the connecting segment is located above the movable groove.

[0012] As a further solution of the utility model: the button section is further provided with a double-sided adhesive tape, and a release paper is attached to the double-sided adhesive tape, and a handle for conveniently tearing off the release paper is integrally formed on the release paper.

[0013] As a further solution of the utility model: the movable groove is designed to be a vertical through structure, and the width of the movable groove is greater than the width of the clamp three.

[0014] As a further solution of the utility model: the bottom of the pressing head protrudes downward from the clamp three, and the bottom of the pressing head is designed to be a round head structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] In the present application, by designing structures such as clamp one, clamp two and clamp three, it is possible to design a foldable structure according to the assembled shape of the display module membrane key. Clamp three is used to bend the membrane key body into a fixed shape, clamp two is used for vacuum adsorption to stabilize the membrane key body, and clamp one is used to position and place the display module body, so that the membrane key body can be positioned, placed, bent and formed, and attached to the display module body quickly while ensuring alignment, solving the problem of insufficient attachment accuracy caused by manual alignment operations and improving the assembly accuracy. Clamp three bends the membrane key body according to the set pressing head, avoiding the problem of uncontrollable angle during manual bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the membrane keypad body of the utility model before being bent when it is placed on the second fixture;

[0018] Figure 2 It is a schematic diagram of the membrane keypad body of the utility model after being bent when placed on the second fixture;

[0019] Figure 3 This is a schematic diagram of the structure of the second clamp of the utility model when it is flipped;

[0020] Figure 4 It is a schematic diagram of the top view of the structure of the clamp 1 and the clamp 2 of the utility model;

[0021] Figure 5 It is a partial cross-sectional structural schematic diagram of the second clamp of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the membrane keypad body of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the utility model in which the membrane keypad body is installed and attached to the display module body;

[0024] Figure 8 The utility model is a schematic diagram of a top view of the structure in which the membrane keypad body is installed and attached to the display module body.

[0025] The reference numerals and names in the figures are as follows:

[0026] 1. Clamp 1; 2. Clamp 2; 201. Adsorption hole 1; 202. Adsorption hole 2; 3. Clamp 3; 301. Pressing head; 4. Positioning slot 1; 5. Display module body; 501. Connector; 6. Positioning slot 2; 7. Membrane button body; 701. Button section; 702. Connecting section; 8. Movable slot; 9. Support platform; 901. Adsorption hole 3. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-8 A TDDI touch display module membrane key assembly fixture comprises a fixture 1, a fixture 2 and a fixture 3; a positioning groove 4 is provided on the top of the fixture 1; one side of the fixture 2 is hinged to the fixture 1, a positioning groove 6 is provided on one side of the top of the fixture 2, and a strip-shaped movable groove 8 is also provided on the top of the fixture 2, and the movable groove 8 is connected to the positioning groove 6; one side of the fixture 3 is hinged to the inner wall of the movable groove 8, and a pressing head 301 is also integrally formed on the fixture 3. By designing the fixture 1, the fixture 2 and the fixture 3, the production efficiency of the membrane key assembly can be significantly improved, and the malfunction caused by manual assembly can be reduced.

[0029] See also Figure 1-5In this embodiment, a plurality of adsorption holes 201 are provided at the top of the clamp 2 and at the right side of the inner bottom wall of the positioning groove 6, and a plurality of adsorption holes 202 are provided at the inner wall of the clamp 2 and at the position corresponding to the movable groove 8; the plurality of adsorption holes 202 are designed to be bent in the inner cavity of the clamp 2, and the plurality of adsorption holes 202 and the plurality of adsorption holes 1 201 are respectively connected to the vacuum pump through pipes.

[0030] Specifically, the adsorption hole 201 can adsorb the key segment 701 placed in the positioning groove 6 by the suction effect of the vacuum pump, so as to ensure the initial stability of the key segment 701 on the clamp 2, and the adsorption hole 202 can adsorb and stabilize the connecting segment 702 attached to the inner wall of the clamp 2 2 by the suction effect of the vacuum pump. At the same time, the vacuum pump connected to the adsorption hole 201 and the adsorption hole 202 can be a vacuum pump. The vacuum pump is an external device and is not illustrated in the application document.

[0031] See also Figure 1-5 In this embodiment, a support platform 9 is also fixed to the inner bottom wall of the movable groove 8, and a plurality of adsorption holes 3 901 are opened on the top of the support platform 9, and the plurality of adsorption holes 3 901 are connected to the vacuum pump through pipes; a through groove is left between one side of the support platform 9 and the side wall of the clamp 2 for convenient insertion of the pressing head 301.

[0032] Specifically, the adsorption hole three 901 can adsorb and stabilize the connecting section 702 attached to the support platform 9 through the suction effect of the vacuum pump, thereby ensuring the stability of the entire membrane key body 7 on the clamp two 2. The vacuum pump connected to the adsorption hole three 901 can be a vacuum pump. The vacuum pump is an external device and is not shown in the application document. The design of the through groove can ensure that the connecting section 702 is bent by the pressing head 301 and passes through the through groove for molding.

[0033] See also Figure 1-2 In this embodiment, a display module body 5 is also included. The display module body 5 is placed face down in the positioning groove 4, and a connector 501 is installed on the top of the display module body 5.

[0034] Specifically, the display module body 5 can be positioned and placed in the positioning groove 1 4 , so that multiple display module bodies 5 that need to be installed later can be positioned at accurate positions, which can facilitate the subsequent accurate attachment and connection with the membrane button body 7 .

[0035] See also Figure 1-6In this embodiment, a membrane key body 7 is also included. The membrane key body 7 includes a key segment 701 and a connecting segment 702. The key segment 701 is placed in the positioning groove 6, and the connecting segment 702 is located above the movable groove 8. Double-sided tape is also provided on the key segment 701, and release paper is attached to the double-sided tape. A handle is integrally formed on the release paper for conveniently tearing off the release paper.

[0036] Specifically, the key segment 701 of the membrane key body 7 can be positioned in the positioning groove 2 6, and the connecting segment 702 can be positioned above the movable groove 8, so that the membrane key body 7 that needs to be bent later can be accurately positioned each time, and it is convenient to accurately attach and connect with the display module body 5.

[0037] See also Figure 1-4 In this embodiment, the movable groove 8 is designed to be a vertical through structure, and the width of the movable groove 8 is greater than the width of the clamp three 3.

[0038] Specifically, the movable groove 8 can facilitate the insertion of the connecting section 702 after being bent, and can facilitate the flipping movement of the clamp 3 3 in the movable groove 8 on the other hand.

[0039] See also Figure 1-2 In this embodiment, the bottom of the pressing head 301 protrudes downward from the clamp three 3, and the bottom of the pressing head 301 is designed to be a round head structure.

[0040] Specifically, by designing the pressing head 301, the round head at the bottom of the pressing head 301 can be used to resist and bend the connecting section 702. Due to the round head structure, scratches on the connecting section 702 can be avoided during bending.

[0041] When using:

[0042] First, place the membrane key body 7 on the fixture 2 (with the double-sided adhesive facing upward), and place the key segment 701 in the positioning groove 2 6 and the connecting segment 702 above the movable groove 8 (see FIG. Figure 1 ), start the vacuum pump connected to the adsorption hole 201, and use the vacuum pump to absorb the key segment 701 through the adsorption hole 201 to achieve preliminary stability of the membrane key body 7;

[0043] Turn over the clamp 3 3, and use the pressing head 301 on the clamp 3 3 to press the connecting section 702, so that the connecting section 702 is bent, so as to form a Figure 2 The state shown in FIG. 1 is obtained, and the air pumps connected to the second adsorption hole 202 and the third adsorption hole 901 are started, so that the connecting section 702 is adsorbed by the second adsorption hole 202 and the third adsorption hole 901, so as to realize the stabilization of the membrane key body 7 again;

[0044] Flip the clamp 3 3 in the opposite direction to move the clamp 3 3 away from the top of the clamp 2 2, flip the clamp 2 2, and the clamp 2 2 drives the membrane key body 7 to the top of the clamp 1 1, tear off the release paper on the key segment 701, so that the key segment 701 is attached to the top of the left side of the display module body 5, and turn off the three vacuum pumps, so that the adsorption hole 1 201, the adsorption hole 202, and the adsorption hole 3 901 no longer adsorb and stabilize the membrane key body 7, so that the membrane key body 7 is in a relaxed state;

[0045] Flip the second clamp 2 in the opposite direction so that the second clamp 2 is away from the membrane key body 7 (the membrane key body 7 is now attached to the display module body 5), and then connect the connecting section 702 of the membrane key body 7 to the connector 501 on the display module body 5, and finally realize the alignment installation of the membrane key body 7 on the display module body 5, and finally remove the display module body 5 with the membrane key body 7 from the clamp 1 (as shown in FIG. Figure 7 shown).

[0046] It should be noted that the membrane key body 7 is a capacitive touch key, which is a circuit pattern and wiring made on the membrane. Through the driver IC and the host computer, using the self-capacitance or mutual capacitance principle, the user touches the key pattern with his finger to achieve the target function.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A TDDI touch display module membrane keypad assembly fixture, characterized in that: It includes a clamp 1 (1), a clamp 2 (2) and a clamp 3 (3); The top of the clamp (1) is provided with a positioning groove (4); One side of the second clamp (2) is hinged to the first clamp (1), one side of the top of the second clamp (2) is provided with a second positioning groove (6), and the top of the second clamp (2) is also provided with a strip-shaped movable groove (8), and the movable groove (8) is connected to the second positioning groove (6); One side of the clamp three (3) is hinged on the inner wall of the movable groove (8), and a pressing head (301) is also integrally formed on the clamp three (3).

2. The TDDI touch display module membrane key assembly fixture according to claim 1, characterized in that: A plurality of adsorption holes (201) are provided on the top of the second clamp (2) and at the right side of the inner bottom wall of the second positioning groove (6), and a plurality of adsorption holes (202) are provided on the inner side wall of the second clamp (2) and at the position corresponding to the movable groove (8).

3. The TDDI touch display module membrane key assembly fixture according to claim 2, characterized in that: The plurality of adsorption holes 2 (202) are designed to be bent in the inner cavity of the clamp 2 (2), and the plurality of adsorption holes 2 (202) and the plurality of adsorption holes 1 (201) are respectively connected to the vacuum pump through pipelines.

4. The TDDI touch display module membrane key assembly fixture according to claim 1, characterized in that: A support platform (9) is also fixed to the inner bottom wall of the movable groove (8), and a plurality of adsorption holes (901) are provided on the top of the support platform (9). The plurality of adsorption holes (901) are connected to an air pump via a pipeline.

5. The TDDI touch display module membrane key assembly fixture according to claim 4, characterized in that: A through groove is left between one side of the support platform (9) and the side wall of the second clamp (2) to facilitate the insertion of the pressing head (301).

6. The TDDI touch display module membrane key assembly fixture according to claim 1, characterized in that: It also includes a display module body (5), which is placed face down in the first positioning groove (4), and a connector (501) is installed on the top of the display module body (5).

7. The TDDI touch display module membrane key assembly fixture according to claim 1, characterized in that: It also includes a membrane key body (7), the membrane key body (7) includes a key segment (701) and a connecting segment (702), the key segment (701) is placed in the second positioning groove (6), and the connecting segment (702) is located above the movable groove (8).

8. The TDDI touch display module membrane key assembly fixture according to claim 7, characterized in that: The button section (701) is also provided with a double-sided adhesive tape, and a release paper is attached to the double-sided adhesive tape. A handle is integrally formed on the release paper for convenient tearing off of the release paper.

9. The TDDI touch display module membrane key assembly fixture according to claim 1, characterized in that: The movable groove (8) is designed to be a vertically through structure, and the width of the movable groove (8) is greater than the width of the clamp three (3).

10. The TDDI touch display module membrane key assembly fixture according to claim 1, characterized in that: The bottom of the pressing head (301) protrudes downward from the clamp three (3), and the bottom of the pressing head (301) is designed to be a round head structure.

Images