Aging system and method for operating the same

Patent metadata

Field	Value
Publication number	US-10726780-B2
Application number	US-201815945866-A
Country	US
Kind code	B2
Filing date	Apr 5, 2018
Priority date	Sep 11, 2017
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

An aging system includes panel groups each including display panels, an auxiliary board including the panel groups disposed thereon, and an aging device for supplying aging signals to the display panels through line boards to perform aging on the display panels, where the aging device supplies switch signals respectively to the display panels through the line boards, where each of the display panels includes a switch unit for supplying the aging signal to a pixel unit according to the switch signal.

First claim

What is claimed is:

1. An aging system comprising:
panel groups each including display panels;
an auxiliary board including the panel groups disposed thereon; and
an aging device which supplies aging signals to the display panels through line boards to perform aging on the display panels,
wherein the aging device supplies switch signals respectively to the display panels through the line boards,
wherein each of the display panels includes a switch which supplies an aging signal of the aging signals to a pixel unit defined by a plurality of pixels according to a switch signal of the switch signals,
wherein the aging device includes:
an aging signal supply unit which supplies the aging signals respectively to the panel groups through group signal lines corresponding to the panel groups; and
a switch signal supply unit which supplies the switch signals respectively to the display panels through switch signal lines corresponding to the display panels,
wherein the switch signal supply unit blocks a supply of all of the switch signals, and the aging signal supply unit supplies the aging signals to the display panels, and detects a board error of the line boards, and
wherein the switch signal supply unit blocks the supply of switch signals to only a panel group coupled to only a line board in which the board error occurs.

2. The aging system of claim 1 , wherein the switch includes at least one switch switched according to the switch signal.

3. The aging system of claim 2 , wherein the switch is any one of an N-type metal-oxide-semiconductor transistor and a P-type metal-oxide-semiconductor transistor.

4. The aging system of claim 1 , wherein the aging device includes:
a power supply unit which supplies an aging power source to the display panels through power lines corresponding to the display panels.

5. The aging system of claim 4 , wherein the aging device further includes a controller which controls the aging signal supply unit, the switch signal supply unit, and the power supply unit.

6. The aging system of claim 4 , wherein each of the group signal lines, the switch signal lines, and the power lines is disposed on a corresponding one of the line boards.

7. The aging system of claim 1 , wherein the aging signal supply unit supplies the aging signals to the display panels, and detects a panel error of the display panels.

8. The aging system of claim 7 , wherein the switch signal supply unit blocks the supply of a switch signal of the switch signals to a display panel of the display panels in which the panel error occurs.

9. A method for operating an aging system which includes panel groups each including display panels, an auxiliary board including the panel groups disposed thereon, and an aging device which supplies aging signals to the display panels through line boards, the method comprising:
detecting a board error;
blocking a supply of switch signals to a panel group coupled to a line board in which the board error occurs;
detecting a panel error;
blocking the supply of switch signals to a display panel of the display panels in which the panel error occurs; and
performing aging on the display panels,
wherein each of the display panels includes a switch which supplies an aging signal of the aging signals to a pixel unit defined by a plurality of pixels according to a switch signal of the switch signals, and
wherein, in the detecting the board error, the aging device detects the board error by blocking the supply of all of the switch signals and then supplying the aging signals to the display panels for a first supply time.

10. The method of claim 9 , wherein, in the detecting the panel error, the aging device detects the panel error by supplying the aging signals to the display panels for the first supply time.

11. The method of claim 10 , wherein, in the performing the aging on the display panels, the aging device performs the aging by supplying the aging signals to the display panels for a second supply time,
wherein the first supply time is shorter than the second supply time.

12. A method for operating an aging system which includes panel groups each including display panels, an auxiliary board including the panel groups disposed thereon, and an aging device which supplies aging signals to the display panels through line boards, the method comprising:
detecting an error;
blocking a supply of a switch signal to a display panel of the display panels in which the error occurs;
determining whether the error is a board error;
blocking the supply of switch signals to a panel group coupled to a line board in which the board error occurs; and
performing aging on the display panels,
wherein each of the display panels includes a switch which supplies the aging signal to a pixel unit defined by a plurality of pixels according to the switch signal,
wherein, in the detecting the error, the aging device detects the error by supplying the aging signals to the display panel for a first supply time, and
wherein, in the determining whether the error is the board error, the aging device supplies the aging signals to the display panels for the first supply time, and determines that the error is the board error when the error continuously occurs.

13. The method of claim 12 , wherein, in the performing the aging on the display panels, the aging device performs the aging by supplying the aging signals to the display panels for a second supply time,
wherein the first supply time is shorter than the second supply time.

Assignees

• Samsung Display Co Ltd

Inventors

• Shim Chan Wook
• Park Wan Bae
• Shin Eun Chul
• Lee Il Ho
• Choi Cheol Gon
• Kim Tae Yong
• Kim Hyung Chul

Classifications

• G09G2320/029

  by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel · CPC title

• G09G3/3208 Primary

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• G09G3/006

  Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309) · CPC title

• G09G2320/043

  Preventing or counteracting the effects of ageing · CPC title

• G09G2330/12

  Test circuits or failure detection circuits included in a display system, as permanent part thereof · CPC title