Glass strip clamping device for silicon-based OLED (Organic Light Emitting Diode) micro display device

Abstract

The utility model discloses a glass strip clamping device for a silicon-based OLED (Organic Light Emitting Diode) micro display device, which comprises an ejector pin tank, an ejector pin is arranged in the ejector pin tank, an adsorption hole is arranged at the top end of the ejector pin tank, a clamping pin tank is arranged on one side of the ejector pin tank, a clamping pin is arranged in the clamping pin tank, and the clamping pin tank is connected with a moving mechanism. The removal of the glass strips on the pad area of the wafer is realized, and the risk of product damage is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of Micro OLED production. Specifically, this utility model relates to a glass strip clamping device for silicon-based OLED microdisplay devices. Background Technology

[0002] MicroOLEDs use monocrystalline silicon wafers as the backplane, on which glass is attached. To meet lighting requirements, pad areas are created on the wafer. During production, the glass in these pad areas needs to be cut and removed, requiring a high level of expertise in glass cutting. After cutting, the product is attached to a blue film with the glass side down, followed by film expansion and sorting. Normally, the glass strips in the pad areas will automatically detach and adhere to the blue film due to its adhesive properties. However, due to factors such as cutting parameters, product thickness, and adhesive application, sometimes glass strips detach from the pad areas of some products after sorting. This necessitates manual inspection and removal, significantly impacting production efficiency and posing a risk of product damage during manual removal.

[0003] Utility model patent CN222222547U, published on December 24, 2024, discloses a clamping fixture for processing ultra-thin irregularly shaped liquid crystal display glass. The fixture includes a worktable with an inner cavity. A first through groove is formed in the top of the inner cavity, and a telescopic rod is installed in the bottom. A first connecting plate is fixedly connected to the telescopic end of the telescopic rod. Multiple electric suction cups are installed on the upper end of the first connecting plate, and L-shaped limiting plates are fixedly connected to both the front and rear sides of the first connecting plate. Two second connecting plates are fixedly connected to the upper end of the worktable. A rotating mechanism is also included, comprising a first motor installed on the left side of the second connecting plate located on the left. However, this clamping fixture for processing ultra-thin irregularly shaped liquid crystal display glass does not solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a glass strip clamping device for silicon-based OLED microdisplay devices that removes glass strips from the wafer pad area and reduces the risk of product damage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The silicon-based OLED microdisplay device glass strip clamping device includes a pin canister containing pins, an adsorption hole at the top of the pin canister, a clamping pin canister on one side of the pin canister containing clamping pins, and a moving mechanism connected to the clamping pin canister.

[0007] The moving mechanism includes a vertical lead screw, a horizontal lead screw, and a longitudinal lead screw, all of which are connected to a drive motor. A bracket is provided on one side of the ejector pin canister, and a lifting plate is located within the bracket. A vertical lead screw nut is fixedly connected to the end of the lifting plate, and the vertical lead screw engages with the vertical lead screw nut. The horizontal lead screw is mounted on the lifting plate, and a horizontal lead screw nut is mounted on it. A mounting plate is fixedly connected to the horizontal lead screw nut, and the longitudinal lead screw is mounted on the mounting plate. The horizontal lead screw and the longitudinal lead screw are arranged perpendicularly. The bottom of the needle clamp canister engages with the longitudinal lead screw. Two needle clamp canisters are provided, located at opposite ends of the longitudinal lead screw.

[0008] The ejector pin can includes a boss located at the center of the top of the ejector pin can, and the adsorption holes are evenly distributed on the boss, with the ejector pin located on the outside of the boss.

[0009] The ejector pin can is equipped with a cylinder, which is connected to a connecting plate. The bottom end of the ejector pin is fixedly connected to the connecting plate, and the ejector pins are evenly distributed circumferentially.

[0010] The mounting plate has sliders at both ends of its bottom, and the lifting plate has guide rails that cooperate with the sliders.

[0011] The needle clamp container includes a connecting frame, which has an L-shaped structure.

[0012] The ejector pin container is topped with glass, on which a wafer is placed. A glass strip is located on one side of the glass, and a blue film is bonded to the glass and the glass strip. The blue film rests on a protrusion, and the tip of the clamping pin passes through the blue film and abuts against the end of the glass strip.

[0013] The technical advantages of this invention are as follows: By using the silicon-based OLED microdisplay device glass strip clamping device of this invention, a clamping device is added to one side of the sorting pin to remove the glass strip on the pad area. By clamping the glass strip before the pin lifts the product, and then performing normal sorting operations, the effect of automatic clamping and detachment of the glass strip is achieved, thereby improving sorting quality and production efficiency, and reducing the penetration requirements of glass cutting process and the risk of product damage caused by manual removal of glass strips. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of the glass strip clamping device for silicon-based OLED microdisplay devices according to this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the moving mechanism of this utility model;

[0017] Figure 3This is a partial structural diagram of the moving mechanism of this utility model;

[0018] The following are labeled in the diagram: 1. Ejector can; 2. Ejector pin; 3. Boss; 4. Adsorption hole; 5. Cylinder; 6. Connecting plate; 7. Pin clamp can; 8. Pin clamp; 9. Support; 10. Lifting plate; 11. Vertical lead screw; 12. Horizontal lead screw; 13. Longitudinal lead screw; 14. Drive motor; 15. Vertical lead screw nut; 16. Horizontal lead screw nut; 17. Mounting plate; 18. Slider; 19. Guide rail; 20. Connecting frame; 21. Glass; 22. Glass strip; 23. Wafer; 24. Blue film. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0020] like Figure 1 As shown, the silicon-based OLED microdisplay device glass strip clamping device includes a pin tank 1, a pin 2 inside the pin tank 1, an adsorption hole 4 at the top of the pin tank 1, a clamping pin tank 7 on one side of the pin tank 1, a clamping pin 8 inside the clamping pin tank 7, and a moving mechanism connected to the clamping pin tank 7. By adding a clamping device to one side of the sorting pin 2, before the pin 2 lifts the product, the clamping device pierces the blue film and clamps the glass strip on the pad area. At this time, the pin 2 lifts the product, and the suction nozzle picks up the product from above, leaving the glass strip on the blue film. This achieves the removal of the glass strip on the pad area of ​​the silicon-based OLED microdisplay device during sorting, solving the problem of glass strips not falling off in the pad area, improving sorting quality, reducing or even eliminating manual inspection and removal of unfallen glass strips, greatly improving production efficiency, reducing the risk of product damage caused by manual removal of glass strips, and reducing the penetration requirements of the glass cutting process before sorting.

[0021] like Figures 1 to 3As shown, the moving mechanism includes a vertical lead screw 11, a horizontal lead screw 12, and a longitudinal lead screw 13. Each of the vertical lead screw 11, horizontal lead screw 12, and longitudinal lead screw 13 is connected to a drive motor 14. A bracket 9 is provided on one side of the ejector pin canister 1. A lifting plate 10 is provided inside the bracket 9. A vertical lead screw nut 15 is fixedly connected to the end of the lifting plate 10. The vertical lead screw 11 cooperates with the vertical lead screw nut 15. The horizontal lead screw 12 is located on the lifting plate 10. A horizontal lead screw nut 16 is provided on the horizontal lead screw 12. A mounting plate 17 is fixedly connected to the horizontal lead screw nut 16. The longitudinal lead screw 13 is located on the mounting plate 17. The horizontal lead screw 12 and the longitudinal lead screw 13 are arranged perpendicularly. The bottom of the needle clamp canister 7 cooperates with the longitudinal lead screw 13. Two needle clamp canisters 7 are provided, located at both ends of the longitudinal lead screw 13. In the above structure, both the ejector pin 2 and the clamping pin 8 are vertically positioned. The horizontal lead screw 12 rotates, driving the mounting plate 17 to move the clamping pin 8 horizontally, adjusting it to a position directly below and aligned with the glass strip. The vertical lead screw 11 rotates, raising and lowering the lifting plate 10, enabling the clamping pin 8 to move in three-dimensional space, allowing its tip to pierce the blue film and reach the same height as the glass strip. The longitudinal lead screw 13, in conjunction with the lead screw block, adjusts the distance between the two clamping pins 8, ensuring stable clamping of the glass strip and accommodating products of different sizes. The longitudinal lead screw 13 is a left-right rotating lead screw, allowing the two clamping pins 8 to move synchronously in opposite directions to adjust the distance.

[0022] like Figure 1 As shown, the ejector pin can 1 includes a boss 3 located at the center of the top of the ejector pin can 1. Adsorption holes 4 are evenly distributed on the boss 3, and the ejector pin 2 is located outside the boss 3. The boss 3 serves as a contact plane with the bottom of the product, and its surface is provided with evenly distributed adsorption holes 4 to ensure stable product adsorption. The adsorption holes 4 and the adsorption device connected to them are existing technologies. The ejector pin 2 is located outside the boss 3 so that the two avoid each other.

[0023] like Figures 1 to 3 As shown, a cylinder 5 is installed inside the ejector pin container 1. The cylinder 5 is connected to a connecting plate 6. The bottom end of the ejector pin 2 is fixedly connected to the connecting plate 6, and the ejector pins 2 are evenly distributed circumferentially. The above structure enables the ejector pins 2 to rise and fall. The connecting plate 6 is used to synchronously drive multiple ejector pins 2 to rise and fall. The evenly distributed ejector pins 2 ensure that the product is lifted in a horizontal position.

[0024] like Figure 2 As shown, the mounting plate 17 has sliders 18 at both ends of its bottom, and the lifting plate 10 has guide rails 19 that cooperate with the sliders 18. This structure is used to guide the movement of the mounting plate 17, ensuring that the two clamping pins 8 are aligned with the glass strip at the correct and synchronized positions.

[0025] like Figure 2As shown, the needle clamp container 7 includes a connecting frame 20, which has an L-shaped structure. The needle clamp container 7 is installed using the L-shaped connecting frame 20. The connecting frame 20 has a built-in nut block that cooperates with the longitudinal lead screw 13, so that the needle clamp 8 is closer to the ejector pin 2 during use, which is conducive to achieving efficient synergy between the two and further reducing the probability of damage to the product.

[0026] like Figure 1 As shown, a glass 21 is positioned above the ejector pin container 1, and a wafer 23 is mounted on the glass 21. A glass strip 22 is located on one side of the glass 21. A blue film 24 is bonded to the glass 21 and the glass strip 22, and the blue film 24 rests on the boss 3. The tip of the clamping pin 8 passes through the blue film 24 and abuts against the end of the glass strip 22. The above structure is the posture in which the clamping pin 8 holds the glass strip 22. Before the ejector pin 2 lifts up, the clamping pin 8 in the clamping device holds the glass strip 22, first piercing the blue film 24. The tip of the pin does not exceed the thickness of the wafer 23, thereby avoiding the clamping pin 8 from piercing too high and contacting the suction nozzle, causing damage to the suction nozzle or the clamping pin 8. When the clamping pin 8 rises to a sufficient height (clamping height > 2 / 3H CG), the clamping pin 8 will retract inward from both sides to hold the glass strip 22. At this time, the ejector pin 2 lifts the product, and then the suction nozzle picks up the product from above for transfer. The glass strip will then fall off and remain on the blue film, achieving the purpose of separation from the product.

[0027] The specific operation process for clamping the glass strip is as follows:

[0028] 1. The platform moves during sorting, allowing the product to move to the suction position after the film expansion is completed;

[0029] 2. The ejector pin can rises, using vacuum suction to hold the product that is about to be grasped;

[0030] 3. According to the product size, rotate the horizontal screw 12 to adjust the position of the two clamping pins 8 so that they are located below the sides of the glass strip. Rotate the vertical screw 11 to make the top of the clamping pins 8 and the side of the glass strip at the same height. Rotate the longitudinal screw 13 to make the two clamping pins 8 retract inward to clamp the glass strip on the pad.

[0031] 4. The ejector pin 2 lifts up and lifts the product, and the upper suction nozzle successfully picks up the product. At this time, the glass strip has separated from the product.

[0032] 5. Once the clamping pin 8 is reset, the glass strip 22 will be released. The ejector pin 2 will also be reset to its initial position, and the glass strip will remain on the blue film 24. The platform will then move to the next product gripping position. Repeating the above operation will achieve the effect of the glass strip automatically falling off the pad area.

[0033] The silicon-based OLED microdisplay device glass strip clamping device adds a clamping device to one side of the sorting pin 2 to remove the glass strip on the pad area. By clamping the glass strip before the pin 2 lifts the product, and then performing normal sorting operations, the glass strip is automatically clamped and detached, thereby improving sorting quality and production efficiency, and reducing the penetration requirements of glass cutting process and the risk of product damage caused by manual removal of glass strips.

[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A silicon-based OLED micro-display glass strip clamping device comprising a thimble (1), a thimble (1) is provided with a thimble (2) in it, characterized in that: The top needle tank (1) top end is equipped with adsorption hole (4), one side of the top needle tank (1) is equipped with needle clamp tank (7), the needle clamp tank (7) is equipped with needle clamp (8), the needle clamp tank (7) is connected with moving mechanism.

2. The silicon-based OLED microdisplay device glass strip holding apparatus according to claim 1, wherein: The moving mechanism includes vertical lead screw (11), horizontal lead screw (12) and longitudinal lead screw (13), the vertical lead screw (11), horizontal lead screw (12) and longitudinal lead screw (13) are all connected with driving motor (14);The top needle tank (1) one side is equipped with support (9), the support (9) is equipped with lifting plate (10), the lifting plate (10) end fixedly connected with vertical nut (15), the vertical lead screw (11) is matched with vertical nut (15), the horizontal lead screw (12) is arranged on the lifting plate (10), the horizontal lead screw (12) is equipped with horizontal nut (16), the horizontal nut (16) is fixedly connected with mounting plate (17), the longitudinal lead screw (13) is arranged on the mounting plate (17), the horizontal lead screw (12) and longitudinal lead screw (13) are perpendicular, the needle clamp tank (7) bottom is matched with longitudinal lead screw (13);The needle clamp tank (7) is equipped with two, two needle clamp tank (7) are located at the two ends of longitudinal lead screw (13).

3. The silicon-based OLED microdisplay device glass strip holding apparatus according to claim 2, wherein: The top needle tank (1) includes boss (3), the boss (3) is located in the middle of the top needle tank (1) top end, the adsorption hole (4) is evenly distributed on the boss (3), and the top needle (2) is located outside the boss (3).

4. The silicon-based OLED microdisplay device glass strip holding apparatus according to claim 3, wherein: The top needle tank (1) is equipped with air cylinder (5), the air cylinder (5) is connected with connecting disc (6), the bottom end of the top needle (2) is fixedly connected on the connecting disc (6), and the top needle (2) is evenly distributed along the circumference.

5. The silicon-based OLED microdisplay device glass strip holding apparatus of claim 2, wherein: The mounting plate (17) both ends bottom is equipped with sliding block (18), the lifting plate (10) is equipped with guide rail (19), and the guide rail (19) is matched with the sliding block (18).

6. The silicon-based OLED microdisplay device glass strip holding apparatus of claim 2, wherein: The needle clamp tank (7) includes connecting frame (20), and the connecting frame (20) is L-shaped structure.

7. The silicon-based OLED microdisplay device glass strip holding apparatus of claim 4, wherein: The top needle tank (1) is equipped with glass (21), the glass (21) is equipped with wafer (23), the glass strip (22) is located on one side of the glass (21), the glass (21) and glass strip (22) are bonded with blue film (24), the blue film (24) is placed on the boss (3), and the top end of the needle clamp (8) passes through the blue film (24) and abuts against the end of the glass strip (22).

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