IP Library Granted Patent US 8,471,836
Granted Patent B2
US 8,471,836 · App. 12/712,389 · Granted Jun 25, 2013

Organic light emitting diode display

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Quick Facts
Patent No.
US 8,471,836
App. No.
12/712,389
Granted
Jun 25, 2013
Kind
B2
Abstract

An organic light emitting diode (OLED) display includes: a first substrate; an OLED disposed on the first substrate; a second substrate disposed opposite to the first substrate with the OLED interposed therebetween; and a sealant disposed between the first substrate and the second substrate to adhere and seal the first substrate and to form a predetermined gap to enclose the OLED, wherein a contact force between the sealant and the first substrate is 0.6 to 0.75 N/mm.

Claims (36)

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

providing a first substrate;

forming a wire unit on the first substrate;

forming an OLED on the wire unit;

forming a second substrate opposite to the first substrate and separated from the first substrate by a predetermined distance; and

forming a sealant disposed between the first substrate and the second substrate to adhere and seal the first substrate and the second substrate thereby forming a gap that encloses the OLED,

wherein the sealant contacts the first and second substrates with a force of approximately 0.6 to 0.75 N/mm.

2. An organic light emitting diode (OLED) display comprising:

a first substrate;

an OLED disposed on the first substrate;

a second substrate disposed opposite to the first substrate with the OLED interposed therebetween; and

a sealant disposed between the first substrate and the second substrate to adhere and seal the first substrate and the second substrate and to form a predetermined gap between the first and second substrates where the OLED is located,

wherein a contact force between the sealant and the first substrate is 0.6 to 0.75 N/mm.

3. The OLED display of claim 2 , wherein the sealant is frit.

4. The OLED display of claim 3 , wherein a distance from the sealant to the OLED is substantially 1 mm.

5. The OLED display of claim 4 , wherein a distance from the first substrate to a surface of the OLED that is opposite to the second substrate is substantially 7 um.

6. The OLED display of claim 5 , wherein a width of the sealant is substantially 550 um, and

a distance from a first surface of the first substrate corresponding to the sealant to a second surface of the second substrate that is opposite to the first surface is 7 to 8 um.

7. The OLED display of claim 5 , wherein a width of the sealant is substantially 750 um, and

a distance from a first surface of the first substrate corresponding to the sealant to a second surface of the second substrate that is opposite to the first surface is 6.5 to 8 um.

8. The OLED display of claim 5 , wherein a width of the sealant is substantially 1000 um, and

a distance from a first surface of the first substrate corresponding to the sealant to a second surface of the second substrate that is opposite to the first surface is 6 to 8 um.

9. The OLED display of claim 2 , further comprising a wire unit disposed between the first substrate and the OLED.

10. The OLED display of claim 9 , wherein the wire unit includes first and second thin film transistors (TFTs) that drive the OLED by transferring a signal to the OLED and a capacitor.

11. The OLED display of claim 10 , wherein the OLED is disposed on a display area of the first substrate.

12. The OLED display of claim 10 , wherein the first TFT is a switching thin film transistor (TFT), and the second TFT is a driving TFT.

13. An organic light emitting diode (OLED) display comprising:

a first substrate;

a wire unit disposed on the first substrate;

an OLED disposed on the wire unit;

a second substrate placed opposite to the first substrate and separated from the first substrate by a predetermined distance; and

a sealant disposed between the first substrate and the second substrate having a height equal to the predetermined distance,

wherein the predetermined distance separating the first substrate from the second substrate is in a range between 6 to 8 μm.

14. The OLED display of claim 13 , wherein a distance from the sealant to the OLED is approximately 1 mm.

15. The OLED display of claim 13 , wherein a width of the sealant is in a range between 550 μm and 750 μm.

16. The OLED display of claim 13 , wherein a width of the sealant is approximately 1000 μm.

Assignments (2)
MERGER Recorded Sep 21, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029087/0636 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 25, 2010
From: LEE, JUNG-MIN; LEE, CHOONG-HO
To: SAMSUNG MOBILE DISPLAY CO., LTD.
Reel/Frame 023994/0314 →