WO2020147194A1

WO2020147194A1 - Laser cutting apparatus

Info

Publication number: WO2020147194A1
Application number: PCT/CN2019/079439
Authority: WO
Inventors: 张天义
Original assignee: 深圳市华星光电半导体显示技术有限公司
Priority date: 2019-01-16
Filing date: 2019-03-25
Publication date: 2020-07-23
Also published as: CN109604840A

Abstract

A laser cutting apparatus (10), comprising a laser transmitting source (30), a driving motor (40), a laser cutting head (50), a positioning module (60), a first detector (70), and a second detector (80). The laser cutting head is used for applying a laser beam to a display device. The positioning module is provided on the outside of the laser cutting head and is used for positioning the display device. The laser transmitting source, the driving motor, the laser cutting head, the positioning module, the first detector, and the second detector are provided within a base; moreover, the first detector and the second detector are provided opposite each other on a rotating shaft of the driving motor; and, the first detector and the second detector make 360-degree rotations around the rotating shaft of the driving motor. The cutting apparatus, with the first detector and the second detector making 360-degree rotations around the rotating shaft of the driving motor, achieves the detection of damages at the edges of a liquid panel and the detection of a disconnection in a line terminal shorting bar of a liquid crystal panel, thus reducing the wiring rate for a detection area and the number of detectors.

Description

Laser cutting device

Technical field

The invention relates to a laser cutting device, in particular to a laser cutting device for cutting a line terminal short-circuit ring of a liquid crystal panel.

Background technique

In recent years, the size of LCD panels has become larger and larger, the quality requirements and costs have become higher, and the number of detectors has also increased. However, the more wiring in the inspection area, the greater the chance of wiring damage due to friction. Use and maintenance of equipment. Therefore, the flexibility of the detector is improved, the number of the detector is reduced, and the quality of strict supervision is achieved in the production process of producing the liquid crystal panel, so as to prevent the generation of defective liquid crystal panels. Therefore, it is necessary to provide a technical solution to solve the problems existing in the prior art.

technical problem

The size of the panel is getting bigger and bigger, the quality requirement and cost are getting higher, and the number of detectors is increasing. However, the more wiring in the inspection area, the chance of wiring frictional damage will increase, which will affect the use and maintenance of the equipment. .

Technical solution

In view of this, the present invention provides a laser cutting device to solve the problems existing in the prior art.

The main purpose of the present invention is to provide a laser cutting device, which can improve the flexibility of detectors and reduce the number of detectors, thereby reducing the chance of wiring friction damage, and achieving strict quality supervision in the process of producing liquid crystal panels. To ensure the quality of the LCD panel.

The present invention provides a laser cutting device, which is used for cutting a wire terminal short-circuit ring of a liquid crystal panel. The laser cutting device includes a base, a laser emission source for providing laser light, a drive motor, a laser cutting head for applying laser light to the display device, a positioning module arranged on the outside of the laser cutting head, a first detector, and a second detector. Detector. The laser emitting source, the driving motor, the laser cutting head, the positioning module and the first detector are arranged in the base. The first detector and the second detector are disposed opposite to each other on the rotation shaft of the driving motor, and the first detector and the second detector rotate 360 degrees around the rotation shaft of the driving motor.

In an embodiment of the present invention, the display device is a liquid crystal panel and the laser cutting head is used to cut the wire terminal short-circuit ring of the liquid crystal panel.

In an embodiment of the present invention, the display device is a liquid crystal panel and the first detector detects damage at the edge of the liquid crystal panel.

In an embodiment of the present invention, the second detector detects the disconnection of the wire terminal short-circuit ring of the liquid crystal panel.

In an embodiment of the present invention, the first detector and the second detector include image sensors.

In an embodiment of the invention, the image sensor is a charge coupled device.

In an embodiment of the present invention, the first detector and the second detector move with the laser cutting head.

In an embodiment of the present invention, the first detector and the second detector are located behind the laser cutting head.

In another embodiment of the present invention, the present invention provides a laser cutting device, which is used for cutting a wire terminal short-circuit ring of a liquid crystal panel. The laser cutting device includes a base, a laser emission source for providing laser light, a drive motor, a laser cutting head for applying laser light to the display device, a positioning module arranged on the outside of the laser cutting head, a first detector, and a second detector. Detector. The laser emitting source, the driving motor, the laser cutting head, the positioning module and the first detector are arranged in the base. The first detector and the second detector are arranged opposite to each other on the rotating shaft of the driving motor. The first detector and the second detector rotate 360 degrees around the rotating shaft of the driving motor. The display device is a liquid crystal panel and is used for a laser cutting head. For cutting the wire terminal short-circuit ring of the liquid crystal panel, and the first detector detects the damage at the edge of the liquid crystal panel.

In an embodiment of the invention, the image sensor is a charge coupled device.

Beneficial effect

Compared with the prior art, the laser cutting device of the present invention improves the flexibility of the detector and reduces the number of installations of the detector. This not only improves the rubbing and damage of the wiring, but also prevents the generation of defective liquid crystal panels, thereby strictly Monitor the quality.

BRIEF DESCRIPTION

Fig. 1 is a schematic diagram of a laser cutting device according to an embodiment of the present invention.

Embodiments of the invention

The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention that can be implemented. Furthermore, the terms of direction mentioned in the present invention, such as up, down, front, back, left, right, inner, outer, side, etc., are only directions with reference to additional drawings. Therefore, the directional terminology is used to illustrate and understand the present invention, not to limit the present invention.

Please refer to FIG. 1, an embodiment of the present invention provides a laser cutting device 10. The laser cutting device 10 is used for repairing defects on a display device, such as detecting and cutting the wire terminal short-circuit ring of a liquid crystal panel. The liquid crystal panel may be a liquid crystal panel of a thin film transistor liquid crystal display. The laser cutting device 10 includes a base 20, a laser emitting source 30, a driving motor 40, a laser cutting head 50, a positioning module 60, a first detector 70 and a second detector 80. The laser emitting source 30, the driving motor 40, the laser cutting head 50, the positioning module 60, the first detector 70 and the second detector 80 are arranged in the machine base 20. In detail, the laser emitting source 30 provides laser energy, so that the laser cutting head 50 emits pulsed laser light. When the pulsed laser light reaches an appropriate energy density, the line terminal short-circuit ring of the liquid crystal panel can be cut. The driving motor 40 provides driving power to the laser cutting head 50, the positioning module 60, the first detector 70 and the second detector 80 of the laser cutting device 10. The positioning module 60 is arranged on the outside of the laser cutting head 50 and is used to position the position to be cut of the liquid crystal panel. The first detector 70 and the second detector 80 are arranged opposite to each other on the rotating shaft of the driving motor, and the first detector 70 and the second detector 80 are driven by the driving motor 30 to rotate 360 degrees around the rotating shaft of the driving motor .

The first detector 70 detects the damage at the edge of the liquid crystal panel, and the second detector 80 detects the disconnection of the wire terminal short-circuit ring of the liquid crystal panel. Furthermore, the first detector 70 and the second detector 80 include image sensors, where the image sensors are charge-coupled devices. In addition, the image sensor may include, but is not limited to, a displacement sensor or an infrared sensor.

When the liquid crystal panel is placed on the work platform, the first detector 70 and the second detector 80 rotate 360 degrees around the rotation axis of the driving motor to perform defect detection on the liquid crystal panel. The detection of defects at the edge of the LCD panel includes protrusions, depressions, corrosion parts, short-circuit parts, whether there are burrs or jaggedness, etc.

When the laser cutting head 50 moves along the liquid crystal panel, the first detector 70 and the second detector 80 can move with the laser cutting head 50, and the first detector 70 and the second detector 80 are located in the laser Behind the cutting head 50, the first detector 70 and the second detector 80 rotate 360 degrees around the rotation axis of the drive motor to detect the wire terminal short-circuit ring of the liquid crystal panel and the defects of all edges to ensure that there are defects The LCD panel is not left out. When the first detector 70 and the second detector 80 detect that the liquid crystal panel is defective, the image sensors of the first detector 70 and the second detector 80 will transmit the information to the processor connected to the image sensor, and the processor will Judge the defective part of the liquid crystal panel. When the processor judges that the liquid crystal panel is unqualified, the positioning module 60 will mark the defective part of the liquid crystal panel. At this time, the laser cutting head 50 immediately cuts the defective part of the liquid crystal panel. The defective part of the liquid crystal panel may be a liquid crystal panel. The wire terminals short-circuit the ring or the edge of the LCD panel.

Since the laser cutting device 10 provided by the present invention has a first detector 70 and a second detector 80 disposed on the rotating shaft of the driving motor opposite to each other, and the first detector 70 and the second detector 80 can rotate 360 degrees To perform defect detection on the LCD panel, it can solve the problem of wiring friction damage caused by the excessive number of detectors in the past, so it can reduce equipment damage.

Although the present invention is described in conjunction with its specific embodiments, it should be understood that many alternatives, modifications and changes will be apparent to those skilled in the art. Therefore, it is intended to include all substitutions, modifications and changes that fall within the scope of the appended claims.

Claims

A laser cutting device includes:

Pedestal

Laser emission source is used to provide laser;

Drive motor

The laser cutting head is used to apply the laser to a display device;

The positioning module is arranged on the outer side of the laser cutting head and is used to position the display device;

The first detector; and

Second detector

Wherein the laser emitting source, the driving motor, the laser cutting head, the positioning module, the first detector and the second detector are arranged in the base;

The first detector and the second detector are used to detect defects on the display device, and the first detector and the second detector are arranged opposite to each other on the rotating shaft of the drive motor, And the first detector and the second detector rotate 360 degrees around the rotation axis of the drive motor.
3. The laser cutting device according to claim 1, wherein the display device is a liquid crystal panel and the laser cutting head is used for cutting the wire terminal short-circuit ring of the liquid crystal panel.
3. The laser cutting device of claim 1, wherein the display device is a liquid crystal panel and the first detector detects damage at the edge of the liquid crystal panel.
3. The laser cutting device according to claim 1, wherein the display device is a liquid crystal panel and the second detector detects the cutting condition of the wire terminal short-circuit ring of the liquid crystal panel.
The laser cutting apparatus of claim 1, wherein the first detector and the second detector comprise image sensors.
7. The laser cutting apparatus of claim 5, wherein the image sensor is a charge coupled device.
The laser cutting device according to claim 1, wherein the first detector and the second detector move with the laser cutting head.
The laser cutting device of claim 1, wherein the first detector and the second detector are located behind the laser cutting head.
A laser cutting device includes:

Pedestal

Laser emission source is used to provide laser;

Drive motor

The laser cutting head is used to apply the laser to a display device;

The positioning module is arranged on the outer side of the laser cutting head and is used to position the display device;

The first detector; and

Second detector

Wherein the laser emitting source, the driving motor, the laser cutting head, the positioning module, the first detector and the second detector are arranged in the base;

The first detector and the second detector are used to detect defects on the display device, and the first detector and the second detector are arranged opposite to each other on the rotating shaft of the drive motor, The first detector and the second detector rotate 360 degrees around the rotation axis of the drive motor, the display device is a liquid crystal panel, and the laser cutting head is used to cut the wire terminal short-circuit ring of the liquid crystal panel , And the first detector detects the damage at the edge of the liquid crystal panel.
9. The laser cutting device according to claim 9, wherein the display device is a liquid crystal panel and the second detector detects the cutting condition of the wire terminal short-circuit ring of the liquid crystal panel.
9. The laser cutting device of claim 9, wherein the first detector and the second detector comprise image sensors.
11. The laser cutting apparatus of claim 11, wherein the image sensor is a charge coupled device.
9. The laser cutting device according to claim 9, wherein the first detector and the second detector move with the laser cutting head.
The laser cutting device of claim 9, wherein the first detector and the second detector are located behind the laser cutting head.