Positioning jig of curved surface touch display equipment

Abstract

The utility model discloses a positioning jig for curved surface touch display equipment, and belongs to the field of display technology production and processing. Comprising an L-shaped positioning jig, an I-shaped positioning jig and an I-shaped inspection jig, and the L-shaped positioning jig is fixedly arranged at any corner of the curved-surface touch display equipment and used for positioning a curved-surface touch screen; the I-shaped positioning jig is fixedly arranged at the other end of the arc-shaped edge where the L-shaped positioning jig is located and used for positioning the curved-surface touch screen. The I-shaped inspection jig is arranged on the arc-shaped edges of the opposite sides of the L-shaped positioning jig and the I-shaped positioning jig, and is used for detecting the positioned curved-surface touch screen; according to the utility model, through the cooperation of the L-shaped positioning jig, the I-shaped positioning jig and the I-shaped inspection jig, the pasting position of the whole curved-surface display panel and the curved-surface touch screen is ensured to be correct.

Description

Technical Field

[0001] This utility model relates to the field of display technology manufacturing and processing, and more specifically to a positioning fixture for a curved touch display device. Background Technology

[0002] With the development of science and technology and the emergence of electronic display technology, displays have undergone a development process from low-end to high-end. To date, various technologies have emerged, and their performance has been continuously improved. Various touch-enabled displays have gradually entered the market to meet market demands. Due to their simple structure, ease of use, fast response speed, space saving, and ease of human-computer interaction, touch display devices have been widely used in public facilities, industrial control, military command, video games, multimedia teaching, and other fields.

[0003] Existing curved touch display devices include curved touchscreens and curved display panels, which require bonding together during assembly. Currently, the market is heavily reliant on customization, and the size of the curved touchscreen can vary depending on the specific needs of the same curved display panel. However, the number of customized requests is relatively small. Therefore, the primary challenge is finding a low-cost, precise, fast, and efficient display bonding fixture for positioning and bonding curved display panels and curved touchscreens without the need for high-precision machinery. Consequently, the development of a bonding and positioning fixture for curved display panels and curved touchscreens that responds to market demands, meets performance requirements, saves production costs, and allows for precise, fast, and efficient manual positioning is urgently needed.

[0004] In existing touchscreen positioning fixtures, Chinese invention patent CN117067617A, entitled "A Curved Touchscreen Bonding Device with Positioning Function," discloses that during the bonding of the cover plate and OCA adhesive, the lower pressing mold slides out of the vacuum bonding chamber, and the moving plate and upper pressing mold also move out simultaneously. OCA adhesive is placed into the lower pressing mold, and the cover plate is placed into the upper pressing mold. Then, the lower and upper pressing molds are slid back into the vacuum bonding chamber. Driven by a transmission component, the first and second clamping plates move and clamp the protective film label. After the label is clamped, the movement of the first and second clamping plates pulls the label, tearing the protective film from the cover plate. A portion of the protective film is opened and flipped. One corner of the flipped protective film moves between the third clamping plate and the first mounting block. At the same time, the third clamping plate moves closer to the first mounting block to clamp it. Meanwhile, the first and second clamping plates release the film-tearing label. Then, the first mounting block moves horizontally under the control of the transmission component, clamping the protective film and tearing it off the cover plate. This avoids the protective film breaking when relying solely on the film-tearing label to remove it. After the protective film is completely removed, the lifting drive component drives the moving plate to move. The movement of the moving plate causes the upper pressing mold to gradually move closer to the lower pressing mold, so that the cover plate on the upper pressing mold can be tightly bonded to the OCA adhesive. This achieves automatic film peeling and automatic bonding of the curved screen cover plate.

[0005] The above document has the following problems:

[0006] 1. The above structure is used for positioning curved touch screens. It requires a specific structure to operate. When positioning curved touch screens in small-batch production, the positioning fixture is complicated to operate, cumbersome to install, and inefficient.

[0007] 2. The above structure is required for positioning curved touch screens and is not universally applicable. Summary of the Invention

[0008] The purpose of this utility model is to overcome the above-mentioned problems and propose a positioning fixture for curved touch display devices, which solves the problems of the existing technology requiring specific equipment, complex operation and installation of positioning fixtures, and low efficiency in small-batch production.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A positioning fixture for a curved touch display device is characterized by comprising an L-shaped positioning fixture, an I-shaped positioning fixture, and an I-shaped inspection fixture. The L-shaped positioning fixture is fixedly disposed at any corner of the curved touch display device. The L-shaped positioning fixture and the I-shaped positioning fixture are fixedly disposed on the same arc-shaped edge of the curved touch display device and are respectively disposed at both ends of the arc-shaped edge. The end of the I-shaped positioning fixture is flush with the end of the arc-shaped edge. The L-shaped positioning fixture and the I-shaped positioning fixture cooperate to position the curved touch screen. The I-shaped inspection fixture is disposed on the arc-shaped edge opposite to the L-shaped positioning fixture and the I-shaped positioning fixture, and is used to detect the positioning accuracy of the L-shaped positioning fixture and the I-shaped positioning fixture.

[0011] The L-shaped positioning fixture includes an L-shaped first positioning structure, an L-shaped first connecting structure, and an L-shaped first stop bar. The L-shaped first positioning structure and the L-shaped first stop bar are connected as a whole through the L-shaped first connecting structure. The L-shaped first positioning structure is provided with a first locking and fixing hole. The L-shaped first positioning structure is flush with and fits the positioning surface of the curved display panel. The positioning surface of the curved display panel is provided with a mounting hole. The first locking and fixing hole is aligned with the mounting hole and locked to form a whole. The L-shaped first stop bar fits into the curved touch screen. The L-shaped positioning fixture matches the side and arc edge of the curved display device.

[0012] The Type I positioning fixture includes a second positioning structure, a second connecting structure, and a second stop bar. The second positioning structure and the second stop bar are connected as a whole through the second connecting structure. The second positioning structure is provided with a second locking hole and a precision positioning locking hole. The second positioning structure is flush with and fits the positioning surface of the curved display panel. The second locking hole and the precision positioning locking hole are aligned with the mounting hole and locked to form a whole. The second stop bar fits into the curved touch screen. The Type I positioning fixture matches the arc edge of the curved display device.

[0013] The Type I inspection fixture includes a flush structure and a platform structure, which are connected as a whole. The flush structure of the Type I inspection fixture is flush with and fits the arc edge of the curved display panel. The platform structure on the opposite side of the flush structure has a detection edge, which is flush with the outer edge of the curved touch screen. The platform structure is placed on the arc edge of the curved touch screen. The Type I inspection fixture matches the arc edge of the curved touch display device and is used to detect the accuracy of the curved touch screen positioning.

[0014] The L-shaped first connecting structure has a first step at its contact point with the curved touchscreen, the second connecting structure has a second step at its contact point with the curved touchscreen, and the platform structure has a third step at its contact point with the curved touchscreen.

[0015] The L-shaped first barrier is higher than the curved touchscreen.

[0016] The second barrier is higher than the curved touchscreen.

[0017] The first and second locking holes are oblong holes.

[0018] The fixture has at least one precision positioning and locking hole on the type I positioning jig.

[0019] The precision positioning and fixing holes set on the type I positioning fixture are two.

[0020] The advantages of using this utility model are:

[0021] Compared with existing technologies, this method utilizes three simple positioning components—an L-shaped positioning fixture, an I-shaped positioning fixture, and an I-shaped inspection fixture—to determine whether the monitoring dimensions match by measuring the length difference between the I-shaped positioning fixture and the curved touchscreen, and the difference between the outer edge of the curved touchscreen's width and the flush detection edge of the I-shaped inspection fixture. Furthermore, the three components have a simple structure, and after locking, they can quickly and effectively position the curved touchscreen. The process is simple to operate, ensuring the correct placement of the entire curved display panel and the curved touchscreen, effectively simplifying the positioning procedure and improving positioning and installation efficiency.

[0022] Second, the steps set in the L-shaped positioning fixture, I-shaped positioning fixture, and I-shaped inspection fixture ensure that the edges of the curved touch screen are not damaged during the positioning and bonding process by avoiding the curved touch screen.

[0023] Third, the mounting holes from the L-shaped positioning fixture to the curved display panel are made of oblong holes, which solves the problem of inconvenience in locking caused by the dimensional deviation of the two parts.

[0024] Fourth, the first and second L-shaped stop bars should be appropriately higher than the curved touch screen to ensure that the curved touch screen can be completely limited.

[0025] 5. By using the precision positioning mounting holes on the Type I positioning fixture to make the end side of the Type I positioning fixture flush with the end side of the curved touch screen, the correct bonding position can be ensured by observing the relative discontinuity during the bonding process of the two parts, thus guaranteeing the positioning accuracy.

[0026] VI. The Type I inspection fixture is responsible for confirming the relative discontinuity between the Type I inspection fixture and the curved touch screen on the opposite side of the L-shaped positioning fixture and the Type I positioning fixture during the bonding process, ensuring that the bonding position in this direction is correct. At the same time, the Type I inspection fixture can be set to a small section, and repeated testing can be performed to ensure that each bonding position in this direction is correct and to guarantee positioning accuracy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the positioning of the curved display panel of this utility model;

[0028] Figure 2 This is a schematic diagram showing the locking state of the L-shaped positioning fixture and the I-shaped positioning fixture of this utility model on the curved display panel;

[0029] Figure 3 This is a schematic diagram of the L-shaped positioning fixture of this utility model;

[0030] Figure 4 This is a schematic diagram of the Type I positioning fixture of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the Type I inspection fixture of this utility model.

[0032] The markings in the diagram are as follows: 1. Curved display panel, 2. Curved touch screen, 3. L-shaped positioning fixture, 4. I-shaped positioning fixture, 5. I-shaped inspection fixture, 6. Mounting hole, 7. L-shaped first positioning structure, 8. First locking and fixing hole, 9. Second locking and fixing hole, 10. L-shaped first stop bar, 11. Curved display panel positioning surface, 12. Second positioning structure, 13. Precision positioning locking and fixing hole, 14. Second stop bar, 15. Flush structure, 16. Inspection edge, 17. Platform structure, 18. First step, 19. Second step, 20. Third step, 21. Open edge, 22. L-shaped first connecting structure, 23. Second connecting structure. Detailed Implementation

[0033] Example 1

[0034] A positioning fixture for a curved touch display device includes an L-shaped positioning fixture 3, an I-shaped positioning fixture 4, and an I-shaped inspection fixture 5. The L-shaped positioning fixture 3 is fixedly disposed at any corner of the curved touch display device. The L-shaped positioning fixture 3 and the I-shaped positioning fixture 4 are fixedly disposed on the same arc-shaped edge of the curved touch display device and are respectively disposed at both ends of the arc-shaped edge. The end of the I-shaped positioning fixture 4 is flush with the end of the arc-shaped edge. The L-shaped positioning fixture 3 and the I-shaped positioning fixture 4 cooperate to position the curved touch screen 2. The I-shaped inspection fixture 5 is disposed on the arc-shaped edge opposite to the L-shaped positioning fixture 3 and the I-shaped positioning fixture 4 and is used to detect the accuracy of the positioning of the L-shaped positioning fixture 3 and the I-shaped positioning fixture 4.

[0035] The L-shaped positioning fixture 3 includes an L-shaped first positioning structure 7, an L-shaped first connecting structure 22, and an L-shaped first stop bar 10. The L-shaped first positioning structure 7 and the L-shaped first stop bar 10 are connected as a whole by the L-shaped first connecting structure 22. The L-shaped first positioning structure 7 is provided with a first locking and fixing hole 8. The L-shaped first positioning structure 7 is flush with and fits the curved display panel positioning surface 11. The curved display panel positioning surface 11 is provided with a mounting hole 6. The first locking and fixing hole 8 is aligned with the mounting hole 6 and locked to form a whole. The L-shaped first stop bar 10 fits with the curved touch screen 2. The L-shaped positioning fixture 3 matches the side and arc edge of the curved display device.

[0036] The type I positioning fixture 4 includes a second positioning structure 12, a second connecting structure 23, and a second stop bar 14. The second positioning structure 12 and the second stop bar 14 are connected as a whole by the second connecting structure 23. The second positioning structure 12 is provided with a second locking hole 9 and a precision positioning locking hole 13. The second positioning structure 12 is flush with and fits the positioning surface 11 of the curved display panel. The second locking hole 9 and the precision positioning locking hole 13 are aligned with the mounting hole 6 and locked to form a whole. The second stop bar 14 fits with the curved touch screen 2. The type I positioning fixture 4 matches the arc edge of the curved display device.

[0037] The Type I inspection fixture 5 includes a flush structure 15 and a platform structure 17, which are connected as a whole. The flush structure 15 of the Type I inspection fixture 5 is flush with and fits the arc edge of the curved display panel 1. The platform structure 17 on the opposite side of the flush structure 15 has a detection edge 16, which is flush with the outer edge of the curved touch screen 2. The platform structure 17 is placed on the arc edge of the curved touch screen 2. The Type I inspection fixture 5 matches the arc edge of the curved touch display device and is used to detect the accuracy of the positioning of the curved touch screen 2.

[0038] The L-shaped first connecting structure 22 has a first step 18 at the contact portion with the curved touch screen 2, the second connecting structure 23 has a second step 19 at the contact portion with the curved touch screen 2, and the platform structure 17 has a third step 20 at the contact portion with the curved touch screen 2.

[0039] The L-shaped first baffle 10 is higher than the curved touch screen 2.

[0040] The second baffle 14 is higher than the curved touch screen 2.

[0041] The first locking hole 8 and the second locking hole 9 are oblong holes.

[0042] The fixture 4 has at least one precision positioning and locking hole 13.

[0043] There are two precision positioning and locking holes 13 on the type I positioning fixture 4.

[0044] like Figure 1-2As shown, after the L-shaped positioning fixture 3 and the I-shaped positioning fixture 4 are locked, they form a limiting L-shaped first stop 10 and second stop 14 and an open edge 21 in the longitudinal direction. After locking, the curved touch screen 2 can be quickly and effectively glued and positioned. During the process, the difference in length between the open edge 21 and the curved touch screen 2, and the difference in width between the outer edge of the curved touch screen 2 and the flush detection edge 16 of the I-shaped inspection fixture 5 can be used to determine whether the monitoring dimensions match, ensuring that the entire curved display panel 1 and the curved touch screen 2 are correctly glued. Then, the L-shaped positioning fixture 3 and the I-shaped positioning fixture 4 are fixedly locked to the corresponding mounting holes 6 of the curved display panel 1 through the locking fixing holes, forming a groove containing the side of the L-shaped first stop 10 and the bottom surfaces of the L-shaped first stop 10 and the second stop 14 in two directions. Then, the curved touch screen 2 is placed in, and the I-shaped inspection fixture 5 is used to check and determine that the bonding position is accurate. After the accuracy is confirmed, the bonding and curing can be carried out.

[0045] Example 2

[0046] like Figure 3 As shown, the L-shaped positioning fixture 3 includes an L-shaped first positioning structure 7, a first locking and fixing hole 8, an L-shaped first stop bar 10, and a first step 18. The L-shaped positioning fixture 3 is flush with the positioning surface 11 of the curved display panel and is locked into the mounting hole 6 at one corner of the curved display panel 1 through the first locking and fixing hole 8, forming a whole. The L-shaped first stop bar 10, which limits the shape of the curved touch screen 2, is responsible for ensuring the relative position of the curved display panel 1 and the touch screen. The L-shaped positioning fixture 3 is also provided with a first step 18 that avoids the touch sensor of the curved touch screen 2, ensuring that the L-shaped positioning fixture 3 will not damage the edge of the touch sensor of the curved touch screen 2 during the bonding process. The first locking and fixing hole 8 from the L-shaped positioning fixture 3 to the curved display panel 1 is an oblong hole. The first locking and fixing hole 8 is set on the bottom and side surfaces of the L-shaped first positioning structure 7, which does not affect the positioning of the curved display panel 1 and the curved touch screen 2, and makes it easier to fix due to the dimensional deviation of the two components. The L-shaped positioning fixture 3, which limits the shape of the curved touch screen 2, requires the first L-shaped stop bar 10 to extend appropriately above the curved touch screen 2 to ensure complete positioning of the touch screen. The L-shaped positioning fixture 3 is made of materials such as bakelite and PC and is engraved. It has precise curved dimensions, high processing efficiency, and low cost, and is convenient for designing and processing different L-shaped positioning fixtures 3 to meet different needs.

[0047] Example 3

[0048] like Figure 4As shown, the Type I positioning fixture 4 includes a Type I positioning structure 12, a second locking and fixing hole 9, a precision positioning locking and fixing hole 13, and a second stop bar 14. The Type I positioning fixture 4 is flush with the positioning surface 11 of the curved display panel and is locked into the mounting hole 6 at the other end of the curved display panel 1 along the longitudinal direction through the second locking and fixing hole 9 and the precision positioning locking and fixing hole 13, forming a whole. The length of the Type I positioning fixture 4 is set such that after locking, the end side is flush with the end side of the curved touch screen 2. The correct bonding position can be ensured by observing the relative discontinuity during the bonding process of the two parts. The Type I positioning fixture 4 is also provided with a step to avoid the touch sensor of the curved touch screen 2, ensuring that the Type I positioning fixture 4 will not damage the edge of the touch sensor of the curved touch screen 2 during the bonding process. There is at least one precision positioning locking and fixing hole 13, and two are optimal. The second locking and fixing hole 9 can be an oblong hole for easy locking. Both the second locking and fixing hole 9 and the precision positioning locking and fixing hole 13 are provided on the Type I positioning structure 12. The second stop 14 of the I-type positioning fixture 4, which limits the shape of the curved touch screen 22, needs to be appropriately higher than the curved touch screen 2 to ensure that the curved touch screen 2 can be completely limited. The I-type positioning fixture 4 is made of materials such as bakelite and PC and is carved. It has precise dimensions for irregular (curved) shapes, high processing efficiency, low cost, and facilitates the design and processing of different I-type positioning fixtures 4 to meet different needs.

[0049] Example 4

[0050] like Figure 5 As shown, the Type I inspection fixture 5 is responsible for confirming the relative discontinuity between the Type I inspection fixture 5 and the curved touch screen 2 on opposite sides of the L-shaped positioning fixture 3 and the Type I positioning fixture 4 during the bonding process, ensuring that the bonding position in this direction is correct. The Type I inspection fixture 5 is equipped with a structure 15 flush with the side edge of the curved display panel 1, a detection edge 16 flush with the outer edge of the corresponding curved touch screen 2, and a platform structure 17 on the curved touch screen 2. The Type I inspection fixture 5 can be set in a small section, and repeated translation and detection can be performed to ensure that each bonding position in this direction is correct. The Type I inspection fixture 5 is also equipped with a step to avoid misalignment with the touch sensor of the curved touch screen 2, ensuring that the Type I inspection fixture 5 will not damage the edge of the touch sensor of the curved touch screen 2 during the bonding process. The Type I positioning fixture 4 is made of materials such as bakelite and PC, and is carved with precise irregular (curved) dimensions, high processing efficiency, and low cost, making it convenient to design and process different Type I inspection fixtures 5 to meet different needs.

Claims

1. A positioning fixture for a curved touch display device, characterized in that: The device includes an L-shaped positioning fixture (3), an I-shaped positioning fixture (4), and an I-shaped inspection fixture (5). The L-shaped positioning fixture (3) is fixedly set at any corner of the curved touch display device. The L-shaped positioning fixture (3) and the I-shaped positioning fixture (4) are fixedly set on the same arc edge of the curved touch display device and are respectively set at both ends of the arc edge. The end of the I-shaped positioning fixture (4) is flush with the end of the arc edge. The L-shaped positioning fixture (3) and the I-shaped positioning fixture (4) work together to position the curved touch screen (2). The I-shaped inspection fixture (5) is set on the arc edge opposite to the L-shaped positioning fixture (3) and the I-shaped positioning fixture (4) and is used to detect the accuracy of the positioning of the L-shaped positioning fixture (3) and the I-shaped positioning fixture (4).

2. The positioning fixture for a curved touch display device according to claim 1, characterized in that: The L-shaped positioning fixture (3) includes an L-shaped first positioning structure (7), an L-shaped first connecting structure (22), and an L-shaped first stop (10). The L-shaped first positioning structure (7) and the L-shaped first stop (10) are connected as a whole through the L-shaped first connecting structure (22). The L-shaped first positioning structure (7) is provided with a first locking and fixing hole (8). The L-shaped first positioning structure (7) is flush with and fits the curved display panel positioning surface (11). The curved display panel positioning surface (11) is provided with a mounting hole (6). The first locking and fixing hole (8) is aligned with the mounting hole (6) and locked to form a whole. The L-shaped first stop (10) fits with the curved touch screen (2). The L-shaped positioning fixture (3) matches the side and arc edge of the curved display device.

3. The positioning fixture for a curved touch display device according to claim 2, characterized in that: The type I positioning fixture (4) includes a second positioning structure (12), a second connecting structure (23), and a second stop (14). The second positioning structure (12) and the second stop (14) are connected as a whole through the second connecting structure (23). The second positioning structure (12) is provided with a second locking hole (9) and a precision positioning locking hole (13). The second positioning structure (12) is flush with and fits the positioning surface (11) of the curved display panel. The second locking hole (9) and the precision positioning locking hole (13) are aligned with the mounting hole (6) and locked to form a whole. The second stop (14) fits with the curved touch screen (2). The type I positioning fixture (4) matches the arc edge of the curved display device.

4. The positioning fixture for a curved touch display device according to claim 3, characterized in that: The Type I inspection fixture (5) includes a flat structure (15) and a platform structure (17), which are connected as a whole. The flat structure (15) of the Type I inspection fixture (5) is flush with and fits the arc edge of the curved display panel (1). The platform structure (17) on the opposite side of the flat structure (15) has a detection edge (16), which is flush with the outer edge of the curved touch screen (2). The platform structure (17) is placed on the arc edge of the curved touch screen (2). The Type I inspection fixture (5) matches the arc edge of the curved touch display device and is used to detect the accuracy of the positioning of the curved touch screen (2).

5. The positioning fixture for a curved touch display device according to claim 4, characterized in that: The L-shaped first connecting structure (22) has a first step (18) at the contact portion with the curved touch screen (2), the second connecting structure (23) has a second step (19) at the contact portion with the curved touch screen (2), and the platform structure (17) has a third step (20) at the contact portion with the curved touch screen (2).

6. A positioning fixture for a curved touch display device according to claim 4 or 5, characterized in that: The L-shaped first stop bar (10) is higher than the curved touch screen (2).

7. A positioning fixture for a curved touch display device according to claim 6, characterized in that: The second baffle (14) is higher than the curved touch screen (2).

8. The positioning fixture for a curved touch display device according to claim 7, characterized in that: The first locking hole (8) and the second locking hole (9) are oblong holes.

9. A positioning fixture for a curved touch display device according to claim 3, 4, or 5, characterized in that: The fixture has at least one precision positioning and locking hole (13) on the type I positioning fixture (4).

10. A positioning fixture for a curved touch display device according to claim 3, 4, or 5, characterized in that: The precision positioning and fixing holes (13) set on the type I positioning fixture (4) are two.

Images