CN219380263U

CN219380263U - High-strength micro-display screen cutting device

Info

Publication number: CN219380263U
Application number: CN202223494280.5U
Authority: CN
Inventors: 叶成; 邵亚飞; 刘晓佳; 刘杰
Original assignee: Semiconductor Integrated Display Technology Co Ltd
Current assignee: Semiconductor Integrated Display Technology Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-07-21
Anticipated expiration: 2032-12-27

Abstract

The utility model belongs to a high-strength micro display screen cutting device in the technical field of silicon-based micro display module production. The grinding wheel body (1) comprises a grinding wheel side face I (2), a grinding wheel side face II (3) and a grinding wheel cutting face (4), wherein the grinding wheel side face I (2) is of an annular structure, the grinding wheel side face II (3) is of an annular structure, the edge of the grinding wheel side face I (2) is connected with one end of the grinding wheel cutting face (4), the edge of the grinding wheel side face II (3) is connected with the other end of the grinding wheel cutting face (4), and the grinding wheel side face I (2) and the grinding wheel side face II (3) are of a V-shaped structure. The high-strength micro display screen cutting device is simple in structure, and can effectively release stress of the cut section edge when a wafer (wafer) or glass is cut by using a grinding wheel, reduce edge breakage and improve the breaking strength of a screen body.

Description

High-strength micro-display screen cutting device

Technical Field

The utility model belongs to the technical field of production of silicon-based micro display modules, and particularly relates to a high-strength micro display screen cutting device.

Background

In the silicon-based micro-display module production process, wafer and glass bonding sheets are cut, and a conventional process of directly cutting by using a grinding wheel is adopted. However, the product cut by the cutting process has unreleased stress in the cutting process, so that the edge of the product is broken more, and the breaking strength of the cut screen body is low.

In the prior art, a technology named as a liquid crystal display cutting device and a technology with a publication number of 204702654U is available, a working platform of the technology is arranged at the top of a machine base, the cutting device comprises a support, a sliding rail and two wheel blades, the support comprises two ear plates which are oppositely arranged along the axial direction, the bottoms of the two ear plates are respectively arranged on the machine base, the sliding rail is arranged between the two ear plates, the cross section shape of the sliding rail is concave, and the rail width of the sliding rail is 80cm; the sliding rail is provided with a sliding block, the sliding block is slidably arranged on the sliding rail, the bottom of the sliding block is provided with a grinding wheel shaft, the grinding wheel shaft is sleeved with a wheel blade, and the wheel blade is arranged on the grinding wheel shaft in a rolling manner; the right side of the sliding block is provided with a pressing seat, a spring is arranged in the pressing seat, a shaft seat is fixedly arranged at the bottom of the spring, and a pressing roller is arranged at the bottom of the shaft seat. However, this technique cannot solve the technical problem of the present application.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the high-strength micro display screen cutting device has a simple structure, and can effectively release the stress of the cut section edge when a wafer (wafer) or glass is cut by using a grinding wheel, reduce edge breakage and improve the breaking strength of a screen body.

The technical scheme adopted by the utility model is as follows:

the utility model relates to a high-strength micro-display screen cutting device, which comprises a grinding wheel body, wherein the grinding wheel body comprises a grinding wheel side surface I, a grinding wheel side surface II and a grinding wheel cutting surface, the grinding wheel side surface I is in an annular structure, the grinding wheel side surface II is in an annular structure, the edge part of the grinding wheel side surface I is connected with one end of the grinding wheel cutting surface, the edge part of the grinding wheel side surface II is connected with the other end of the grinding wheel cutting surface, and the grinding wheel side surface I and the grinding wheel side surface II are in V-shaped structures.

The side surface I of the grinding wheel and the side surface II of the grinding wheel form an acute angle.

The grinding wheel side surface I and the grinding wheel cutting surface of the grinding wheel body are in an obtuse angle structure, and the grinding wheel side surface II and the grinding wheel cutting surface are in an obtuse angle structure.

The width of the grinding wheel cutting surface of the grinding wheel body is between 60um and 80um, and the width of the central part of the grinding wheel body is between 140um and 160 um.

The center part of the grinding wheel body is fixedly provided with a connecting shaft.

The connecting shaft of the grinding wheel body is connected with a driving motor.

The driving motor is arranged on the control bracket of the cutting device.

The high-strength micro display screen cutting device is arranged to be capable of cutting wafer or glass.

When the high-strength micro display screen cutting device cuts the wafer or glass, the cut wafer or glass separating surface is arranged to be in a slope structure.

The slope structure is provided with a glue dropping layer with a triangular section.

By adopting the technical scheme of the utility model, the working principle and the beneficial effects are as follows:

when the high-strength micro-display screen cutting device is structurally arranged, the structure of the grinding wheel is improved, and the grinding wheel body comprises a grinding wheel side face I, a grinding wheel side face II and a grinding wheel cutting face which is used for cutting the high-strength micro-display screen. And the side surface I of the grinding wheel and the side surface II of the grinding wheel are in V-shaped structures, so that the V-shaped structures act on the high-strength micro-display screen all the time when the grinding wheel acts on the high-strength micro-display screen, that is, the grinding wheel is a V-shaped grinding wheel, and the high-strength micro-display screen is cut into two pieces when the grinding wheel acts on the high-strength micro-display screen, and the separation surfaces of the two cut high-strength micro-display screens are in slope structures. The stress of the edge of the cut section is released, edge breakage is reduced, the strength of the display screen is improved, the problem of low breaking strength of the micro display screen is effectively solved, the high-strength micro display screen is prevented from being broken, and the quality is improved.

Drawings

The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:

FIG. 1 is a schematic view of a cutting device for a high-strength micro display screen according to the present utility model;

FIG. 2 is a schematic view of the structure of the cut high-strength micro display according to the present utility model;

FIG. 3 is a schematic view of the structure of a grinding wheel of the high-strength micro-display screen cutting device according to the utility model;

the reference numerals in the figures are respectively: 1. a grinding wheel body; 2. the side surface I of the grinding wheel; 3. the side face II of the grinding wheel; 4. grinding wheel cutting surface; 5. a connecting shaft; 6. a driving motor; 7. a control bracket; 8. a ramp structure; 9. dispensing an adhesive layer; 10. high strength microdisplays (wafer or glass).

Detailed Description

The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present utility model by describing examples in further detail:

as shown in the accompanying drawings 1-3, the utility model relates to a high-strength micro-display screen cutting device, wherein a grinding wheel body 1 comprises a grinding wheel side face I2, a grinding wheel side face II 3 and a grinding wheel cutting face 4, the grinding wheel side face I2 is of an annular structure, the grinding wheel side face II 3 is of an annular structure, the edge of the grinding wheel side face I2 is connected with one end of the grinding wheel cutting face 4, the edge of the grinding wheel side face II 3 is connected with the other end of the grinding wheel cutting face 4, and the grinding wheel side face I2 and the grinding wheel side face II 3 are of a V-shaped structure. The structure provides an improved technical scheme aiming at the defects in the prior art. When the structure is set up, improve the structure of emery wheel, emery wheel body 1 includes emery wheel side I2, emery wheel side II 3, abrasive wheel cutting face 4, and abrasive wheel cutting face 4 is used for acting on and cuts at high strength micro display 10. The grinding wheel side face I2 and the grinding wheel side face II 3 are of V-shaped structures, so that when the grinding wheel acts on the high-strength micro display screen 10, the V-shaped structures act on the high-strength micro display screen 10 all the time, that is, the grinding wheel is a V-shaped grinding wheel, when the grinding wheel acts on the high-strength micro display screen 10, the high-strength micro display screen 10 is cut into two pieces, and the separation surfaces of the two cut high-strength micro display screens 10 are in slope structures 8. The stress of the edge of the cut section is released, edge breakage is reduced, the strength of the display screen is improved, the problem of low breaking strength of the micro display screen is effectively solved, the high-strength micro display screen is prevented from being broken, and the quality is improved. The high-strength micro display screen cutting device is simple in structure, and can effectively release stress of the cut section edge when a wafer (wafer) or glass is cut by using a grinding wheel, reduce edge breakage and improve the breaking strength of a screen body.

The side face I2 of the grinding wheel and the side face II 3 of the grinding wheel form an acute angle. The grinding wheel side face I2 and the grinding wheel cutting face 4 of the grinding wheel body 1 are of an obtuse angle structure, and the grinding wheel side face II 3 and the grinding wheel cutting face 4 are of an obtuse angle structure. With the above structure, when the whole grinding wheel cuts the high-strength micro display screen 10, the cut part of the grinding wheel always acts on the high-strength micro display screen in a V shape. Therefore, stress on the edge of the cut section is released in the cutting process, and edge breakage is reduced.

The width of the grinding wheel cutting surface 4 of the grinding wheel body 1 is between 60um and 80um, and the width of the central part of the grinding wheel body 1 is between 140um and 160 um. In the above configuration, the configuration of the grinding wheel body is set so that the width of the center portion of the grinding wheel body 1 is larger than the width of the grinding wheel cut surface 4. The central position of the grinding wheel body is the central line position of the installation connecting shaft.

The center of the grinding wheel body 1 is fixedly provided with a connecting shaft 5. The connecting shaft 5 of the grinding wheel body 1 is connected with a driving motor 6. The driving motor 6 is arranged on the cutting device control bracket 7. Above-mentioned structure, driving motor's pivot is connected with the connecting axle, like this, when driving motor rotates, can drive the emery wheel through the connecting axle and rotate to cut high strength micro-display screen. And through the control support, can realize the control of the height of emery wheel body, be close to or keep away from high strength micro display screen, cut when being close to, keep away from high strength micro display screen after the cutting.

The high-strength micro display screen cutting device is arranged in a structure capable of cutting wafers or glass. When the high-strength micro display screen cutting device cuts a wafer or glass, the cut wafer or glass separating surface is arranged to be in a slope structure 8. With the above structure, the device according to the present utility model can be directed to a wafer (wafer) or glass. Since the device of the utility model is being proposed for the characteristics of wafers or glass.

The slope structure 8 is provided with a glue dropping layer 9 with a triangular section. According to the structure, the slope structure after the high-strength micro display screen is cut is covered by dispensing, so that a right-angle surface is formed again.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the utility model is not limited by the foregoing, but rather is within the scope of the utility model as long as various modifications are made by the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without modification.

Claims

1. A high strength micro display screen cutting device, its characterized in that: the grinding wheel body (1) comprises a grinding wheel side face I (2), a grinding wheel side face II (3) and a grinding wheel cutting face (4), wherein the grinding wheel side face I (2) is of an annular structure, the grinding wheel side face II (3) is of an annular structure, the edge of the grinding wheel side face I (2) is connected with one end of the grinding wheel cutting face (4), the edge of the grinding wheel side face II (3) is connected with the other end of the grinding wheel cutting face (4), and the grinding wheel side face I (2) and the grinding wheel side face II (3) are of a V-shaped structure.

2. The high-strength micro-display screen cutting device of claim 1, wherein: the side surface I (2) of the grinding wheel and the side surface II (3) of the grinding wheel form an acute angle.

3. The high-strength micro display screen cutting device according to claim 1 or 2, wherein: the grinding wheel body (1) is characterized in that a grinding wheel side face I (2) and a grinding wheel cutting face (4) are of an obtuse angle structure, and a grinding wheel side face II (3) and the grinding wheel cutting face (4) are of an obtuse angle structure.

4. A high strength microdisplay screen cutting apparatus according to claim 3, wherein: the width of the grinding wheel cutting surface (4) of the grinding wheel body (1) is between 60um and 80um, and the width of the central part of the grinding wheel body (1) is between 140um and 160 um.

5. The high-strength micro display screen cutting device according to claim 1 or 2, wherein: the center part of the grinding wheel body (1) is fixedly provided with a connecting shaft (5).

6. The high-strength micro-display screen cutting device of claim 5, wherein: the connecting shaft (5) of the grinding wheel body (1) is connected with the driving motor (6).

7. The high-strength micro-display screen cutting device of claim 6, wherein: the driving motor (6) is arranged on the control bracket (7) of the cutting device.

8. The high-strength micro display screen cutting device according to claim 1 or 2, wherein: the high-strength micro display screen cutting device is arranged to be capable of cutting a wafer or glass.

9. The high-strength micro-display screen cutting device of claim 8, wherein: when the high-strength micro display screen cutting device cuts the wafer or the glass, the separating surface of the cut wafer or glass is arranged to be in a slope structure (8).

10. The high-strength micro-display screen cutting device of claim 9, wherein: the slope structure (8) is provided with a glue dropping layer (9) with a triangular section.