IP Library Granted Patent US 8,921,139
Granted Patent B2
US 8,921,139 · App. 13/971,407 · Granted Dec 30, 2014

Manufacturing method of organic light emitting diode display

Inventor: Jae-Young Lee (Yongin, KR)
Assignee: Samsung Display Co., Ltd.
H01L51/56H01L22/14
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,921,139
App. No.
13/971,407
Granted
Dec 30, 2014
Kind
B2
Abstract

A manufacturing method of an organic light emitting diode (OLED) display includes manufacturing a mother substrate including a plurality of panels formed with a plurality of anodes for each pixel and a test pad connected to each anode of the panel. The method further includes loading the mother substrate into a plasma chamber and applying a plasma voltage to the test pad of the mother substrate to perform a plasma surface treatment process. The test pad is applied with a different plasma voltage for each pixel.

Claims (31)

1. A manufacturing method of an organic light emitting diode (OLED) display, comprising:

forming a mother substrate comprising:

a plurality of panels formed with a plurality of anodes for each pixel in the mother substrate; and

a test pad connected to each anode of the panels; and

applying a plasma voltage to the test pad to perform a plasma surface treatment process,

wherein applying a plasma voltage to the test pad comprises applying a first plasma voltage for a first pixel of the pixels and a second plasma voltage for a second pixel of the pixels, and

wherein the first plasma voltage is different than the second plasma voltage.

2. The method of claim 1 , wherein:

the test pad comprises a red test pad connected to a red pixel, a green test pad connected to a green pixel, and a blue test pad connected to a blue pixel; and

one of the red test pad, the green test pad, and the blue test pad is applied with a different plasma voltage relative to a plasma voltage applied to a different one of the red test pad, the green test pad, and the blue test pad.

3. The method of claim 1 , wherein forming the substrate comprises:

forming the plurality of anodes in each panel; and

forming the test pad at an edge portion of the mother substrate.

4. The method of claim 3 , wherein applying the plasma voltage comprises:

applying the plasma voltage to the test pad via a probe pin.

5. The method of claim 3 , further comprising

cutting the edge portion of the mother substrate.

6. The method of claim 3 , wherein forming the plurality of anodes in each panel comprises forming a first anode in a red pixel, forming a second anode in a blue pixel, and forming a third anode in a green pixel.

7. The method of claim 1 , wherein the first pixel is one of a red pixel, a blue pixel, and a green pixel, and the second pixel is another pixel having a color different than the first pixel.

8. The method of claim 1 , wherein applying the plasma voltage to the test pad comprises applying a different plasma voltage for each type of pixel, the type of pixel being associated with a color of the pixel.

9. A method for performing a plasma process on a mother substrate comprising a plurality of pixels, the method comprising:

applying, via a test pad of the mother substrate, a first voltage to one of a first pixel associated with a first color, a second pixel associated with a second color, and a third pixel associated with a third color; and

applying, via the test pad, a second voltage to a different one of the first pixel, the second pixel, and the third pixel the second voltage being different from the first voltage.

10. The method of claim 9 , further comprising:

forming the mother substrate comprising the test pad and a plurality of panels, each of the panels comprising a plurality of anodes, the plurality of anodes comprising a first anode, a second anode, and a third anode,

wherein the first anode is disposed in the first pixel, the second anode is disposed in the second pixel, and the third anode is disposed in the third pixel.

11. The method of claim 10 , wherein the test pad comprises a first test pad, a second test pad, and a third test pad, and

wherein the first test pad is coupled to the first pixel via the first anode, the second test pad is coupled to the second pixel via the second anode, and the third test pad is coupled to the third pixel via the third anode.

12. The method of claim 9 , wherein forming the mother substrate comprises forming a connection line to connect the test pad to the plurality of the anodes, and

wherein the first voltage and second voltage are applied via the connection line.

13. The method of claim 9 , wherein the first color comprises a red color, the second color comprises a green color, and the third color comprises a blue color.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 20, 2013
From: LEE, JAE-YOUNG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 031046/0183 →
Priority Claims (1)
KR 10-2013-0049439 · May 2, 2013 · national
Continuity (1)
Related Publication 20140329345A1 · Nov 6, 2014