Monitoring device, monitoring method, and device for cutting and grinding display substrate

Patent metadata

Field	Value
Publication number	US-10139802-B2
Application number	US-201514801916-A
Country	US
Kind code	B2
Filing date	Jul 17, 2015
Priority date	Jan 27, 2015
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

The present disclosure provides a monitoring device, a monitoring method and a device for cutting a display substrate. The monitoring device includes an infrared temperature detection module configured to detect a temperature at a contacting position where a cutter wheel is in contact with the display substrate when cutting the display substrate with the cutter wheel, so as to acquire a temperature parameter at the contacting position; and a processing module configured to generate, based on the temperature parameter, a corresponding control parameter for controlling the process of cutting the display substrate.

First claim

What is claimed is:

1. A monitoring device for monitoring a process of cutting a display substrate, comprising: an infrared temperature detection module configured to detect a temperature at a contacting position where a cutter wheel is in contact with the display substrate when cutting the display substrate with the cutter wheel, so as to acquire a temperature parameter at the contacting position; and
a processing module in communication with the infrared temperature detection module, and configured to generate, based on the temperature parameter, a corresponding control parameter for controlling the process of cutting the display substrate;
wherein the monitoring device further comprises:
a first pressure application unit connected to a first end of a center shaft passing through a center of the cutter wheel;
a second pressure application unit connected to a second end of the center shaft;
a first pressure detection unit configured to detect a pressure at the first end of the center shaft; and
a second pressure detection unit configured to detect a pressure at the second end of the center shaft;
wherein the first end and the second end of the center shaft are located at two sides of the cutter wheel, respectively.

2. The monitoring device according to claim 1 , wherein the infrared temperature detection module is an infrared temperature sensor.

3. The monitoring device according to claim 2 , wherein an extension direction of a center line of a probe of the infrared temperature sensor is aligned with the center of the cutter wheel.

4. The monitoring device according to claim 1 , wherein the infrared temperature detection module is arranged on a three-degree-of-freedom screw sliding table.

5. The monitoring device according to claim 4 , wherein the processing module is configured to generate a driving parameter for driving the infrared temperature detection module to move on the three-degree-of-freedom screw sliding table.

6. The monitoring device according to claim 1 , wherein the processing module comprises:
a drawing unit configured to draw, based on the temperature parameter, a thermal field image for the contacting position where the cutter wheel is in contact with the display substrate in accordance with a predetermined drawing method.

7. A monitoring method for monitoring a process of cutting a display substrate, comprising:
detecting, by an infrared temperature detection module, a temperature at a contacting position where a cutter wheel is in contact with the display substrate when cutting the display substrate with the cutter wheel, so as to acquire a temperature parameter at the contacting position; and
generating, by a processing module, a corresponding control parameter for controlling the process of cutting procedure the display substrate, based on the temperature parameter;
wherein the cutter wheel is mounted to a cutter holder; and the cutter holder comprises:
a center shaft passing through a center of the cutter wheel;
a first pressure application unit connected to a first end of the center shaft;
a second pressure application unit connected to a second end of the center shaft;
a first pressure detection unit configured to detect a pressure at the first end of the center shaft; and
a second pressure detection unit configured to detect a pressure at the second end of the center shaft;
wherein the first end and the second end of the center shaft are located at two sides of the cutter wheel, respectively;
wherein the monitoring method further includes:
using the first pressure detection unit to detect the pressure at the first end of the center shaft and using the second pressure detection unit to detect the pressure at the second end of the center shaft;
determining whether the pressure at the first end of the center shaft is equal to the pressure at the second end of the center shaft; and
when the pressure at the first end of the center shaft is not equal to the pressure at the second end of the center shaft, using at least one of the first pressure application unit and the second pressure application unit to adjust at least one of the pressure at the first end of the center shaft and the pressure at the second end of the center shaft.

8. The monitoring method according to claim 7 , wherein the step of generating, by the processing module, the corresponding control parameter based on the temperature parameter further comprises:
generating a temperature-reduction control parameter including at least one of a cutter wheel rotation speed control parameter, a cooling water supply control parameter and a cooling air supply control parameter when the temperature parameter at the contacting position where the cutter wheel is in contact with the display substrate is greater than a reference value.

9. The monitoring method according to claim 7 , further comprising:
drawing a temperature field image for the contacting position where the cutter wheel is in contact with the display substrate in accordance with a predetermined drawing method based on the temperature parameter.

10. A device for cutting a display substrate, comprising a cutter wheel and a monitoring device for monitoring a process of cutting the display substrate;
wherein the monitoring device comprises:
an infrared temperature detection module configured to detect a temperature at a contacting position where the cutter wheel is in contact with the display substrate when cutting the display substrate with the cutter wheel, so as to acquire a temperature parameter at the contacting position; and
a processing module in communication with the infrared temperature detection module, and configured to generate, based on the temperature parameter, a corresponding control parameter for controlling the process of cutting the display substrate;
wherein the device further includes a cutter holder;
wherein the cutter holder comprises:
a center shaft passing through a center of the cutter wheel;
a first pressure application unit connected to a first end of the center shaft;
a second pressure application unit connected to a second end of the center shaft;
a first pressure detection unit configured to detect a pressure at the first end of the center shaft; and
a second pressure detection unit configured to detect a pressure at the second end of the center shaft;
wherein the first end and the second end of the center shaft are located at two sides of the cutter wheel, respectively.

11. The device according to claim 10 , wherein the first pressure detection unit is arranged at a position where the first pressure application unit is connected to the first end of the center shaft; and the second pressure detection unit is arranged at a position where the second pressure application unit is connected to the second end of the center shaft.

12. The device according to claim 10 , further comprising:
a protection housing sleeved onto the infrared temperature detection module and configured to prevent the infrared temperature detection module from being affected by spatters during the process of cutting with the cutter wheel.

13. The device according to claim 10 , wherein the infrared temperature detection module is an infrared temperature sensor.

14. The device according to claim 13 , wherein an extension direction of a center line of a probe of the infrared temperature sensor is aligned with a center of the cutter wheel.

15. The device according to claim 10 , wherein when cutting the display substrate with the cutter wheel, the infrared temperature detection module is arranged directly in front of or in back of the cutter wheel

Assignees

• Boe Technology Group Co Ltd
• Hefei Boe Optoelectronics Tech

Inventors

• Jing Yangkun
• Wu Weimin
• Che Xiaopan
• Li Haibo
• Li Gui
• Sun Jian
• Xia Junwei
• Ding Jia

Classifications

• B23Q15/12

  Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion · CPC title

• B24B55/02

  Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant (cooling or lubricating during dressing operation B24B53/095; incorporated in grinding wheels B24D) · CPC title

• G05B2219/49073

  Adapt machining parameters so as to keep temperature constant · CPC title

• B24B49/16

  taking regard of the load · CPC title

• G01J5/0022 Primary

  for sensing the radiation of moving bodies · CPC title