Aging test system for display panel and aging test method for the same

Patent metadata

Field	Value
Publication number	US-10424736-B2
Application number	US-201715577012-A
Country	US
Kind code	B2
Filing date	Aug 17, 2017
Priority date	Jun 23, 2017
Publication date	Sep 24, 2019
Grant date	Sep 24, 2019

Abstract

An aging test system and method are disclosed. An aging test system includes a vacuum chamber provided with an aging device for aging a display panel; a lighting mechanism electrically connected to the display panel for lighting up the display panel; at least one spectrometer for detecting a color coordinate and a brightness of the display panel; at least one camera for detecting a dark spot defect of sub-pixels of the display panel. Accordingly, the present invention can save the inspection time, increase the inspection efficiency and save the inspection device in order to reduce the inspection cost.

First claim

What is claimed is:

1. An aging test system for display panel, comprising:
a vacuum chamber provided with an aging device for aging a display panel;
a lighting mechanism electrically connected to the display panel for lighting up the display panel, the lighting mechanism includes a connection rod and a pin, wherein, one terminal of the connection rod is disposed at an inner wall of the vacuum chamber, and the other terminal of the connection rod is connected to the pin, and the pin is used for electrically connecting to the display panel;
at least one spectrometer located at an optical path of a light emitted from the display panel for detecting a color coordinate and a brightness of the display panel; and
at least one camera located at the optical path of the light emitted from the display panel for detecting a dark spot defect of sub-pixels of the display panel;
wherein, the vacuum chamber is provided with the lighting mechanism, the at least one spectrometer and the at least one camera, and a side of the vacuum chamber is provided with a gas pipeline for inputting one of nitrogen and air.

2. The aging test system according to claim 1 , wherein, the aging test system further includes a supporting table for supporting the display panel.

3. The aging test system according to claim 2 , wherein, the supporting table is provided with an alignment system for adjusting a position of the display panel.

4. The aging test system according to claim 2 , wherein, the vacuum chamber is used for receiving the display panel, the lighting mechanism and the supporting table, and the at least one spectrometer and the least one camera are located at an outside surface of the vacuum chamber.

5. The aging test system according to claim 4 , wherein, the at least one spectrometer and the least one camera are alternately disposed at the outside surface of the vacuum chamber.

6. The aging test system according to claim 1 , wherein, the aging test system further includes a supporting element for supporting the vacuum chamber.

7. An aging test system for display panel, comprising:
a vacuum chamber provided with an aging device for aging a display panel;
a lighting mechanism electrically connected to the display panel for lighting up the display panel;
at least one spectrometer located at an optical path of a light emitted from the display panel for detecting a color coordinate and a brightness of the display panel;
at least one camera located at the optical path of the light emitted from the display panel for detecting a dark spot defect of sub-pixels of the display panel;
wherein, the vacuum chamber is provided with the lighting mechanism, the at least one spectrometer and the at least one camera;
wherein the lighting mechanism comprises a connection rod and a pin, wherein one terminal of the connection rod is disposed at an inner wall of the vacuum chamber, and the other terminal of the connection rod is connected to the pin, and the pin is used for electrically connecting to the display panel.

8. The aging test system according to claim 7 , wherein, the aging test system further includes a supporting table for supporting the display panel.

9. The aging test system according to claim 8 , wherein, the supporting table is provided with an alignment system for adjusting a position of the display panel.

10. The aging test system according to claim 8 , wherein, the vacuum chamber is used for receiving the display panel, the lighting mechanism and the supporting table, and the at least one spectrometer and the least one camera are located at an outside surface of the vacuum chamber.

11. The aging test system according to claim 10 , wherein, the at least one spectrometer and the least one camera are alternately disposed at the outside surface of the vacuum chamber.

12. The aging test system according to claim 7 , wherein, a side of the vacuum chamber is provided with a gas pipeline for inputting one of nitrogen and air.

13. The aging test system according to claim 7 , wherein, the aging test system further includes a supporting element for supporting the vacuum chamber.

14. The aging test system according to claim 7 , wherein the at least one spectrometer and the at least one camera are alternately disposed at the optical path of the light emitted from the display panel and separately disposed outside of the vacuum chamber.

15. An aging test method for display panel, comprising steps of:
lighting, by a lighting mechanism, a display panel up; and
detecting, by at least one spectrometer, a color coordinate and a brightness of the display panel, and simultaneously detecting, by at least one camera, a dark spot defect of sub-pixels of the display panel;
wherein the lighting mechanism is electrically connected to the display panel, and at least one spectrometer and at least one camera are located at an optical path of a light emitted from the display panel;
wherein the lighting mechanism comprises a connection rod and a pin, wherein one terminal of the connection rod is disposed at an inner wall of the vacuum chamber, and the other terminal of the connection rod is connected to the pin, and the pin is used for electrically connecting to the display panel.

16. The aging test method according to claim 15 , wherein, the method further includes a step of providing at least one of nitrogen and air.

Assignees

• Shenzhen China Star Optoelect

Inventors

• Tu Aiguo
• Fang Chun-Hsiung
• Wu Tsung-Yuan
• Li Jinchuan
• Jiang Liang
• Wei Feng

Classifications

• G01J3/506

  measuring the colour produced by screens, monitors, displays or CRTs · CPC title

• G01N2021/8845

  Multiple wavelengths of illumination or detection · CPC title

• G01N21/27

  using photo-electric detection (G01N21/31 takes precedence){; circuits for computing concentration (logarithmic circuits G06G7/24; photometric circuits in general G01J)} · CPC title

• G01N2021/9513

  Liquid crystal panels · CPC title

• G01N21/95 Primary

  characterised by the material or shape of the object to be examined (G01N21/89 - G01N21/91, G01N21/94 take precedence) · CPC title