IP Library Granted Patent US 9,293,729
Granted Patent B2
US 9,293,729 · App. 14/459,451 · Granted Mar 22, 2016

Organic light emitting diode display package with sealant and adhesive reinforcing member

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Quick Facts
Patent No.
US 9,293,729
App. No.
14/459,451
Granted
Mar 22, 2016
Kind
B2
Abstract

An organic light emitting diode display may include a display substrate including an organic light emitting diode, a sealing member facing the display substrate to cover the organic light emitting diode, a sealant positioned between the display substrate and the sealing member and bonding the display substrate and the sealing member, and a reinforcing member positioned at an outer surface of the sealant and a space between the display substrate and the sealing member, in which shear stress and hardness of the reinforcing member are a function of a sum of thicknesses of the display substrate and the sealing member.

Claims (32)

1. An organic light emitting diode display, comprising:

a display substrate including an organic light emitting diode;

a sealing member facing the display substrate to cover the organic light emitting diode;

a sealant positioned between the display substrate and the sealing member and bonding the display substrate and the sealing member; and

a reinforcing member positioned at an outer surface of the sealant at a space between the display substrate and the sealing member, wherein:

X

(

Y

-

B

t

+

C

)

A

wherein X is a shear stress of the reinforcing member multiplied by a hardness (D) of the reinforcing member, Y is an adhesion force (kgf) between the display substrate and the sealing member, t is a sum of thicknesses of the display substrate and the sealing member (millimeters), A is about 0.0008 to about 0.0010, B is about 6.0000 to about 7.40000, and C is about 0.7900 to about 0.9800.

2. The organic light emitting diode display as claimed in claim 1 , wherein:

Y is about 5.0 or more.

3. The organic light emitting diode display as claimed in claim 1 , wherein:

the sum of thicknesses of the display substrate and the sealing member is about 0.6 mm or less.

4. The organic light emitting diode display as claimed in claim 1 , wherein:

the outer surface of the sealant and an edge of the sealing member are parallel to each other.

5. The organic light emitting diode display as claimed in claim 1 , wherein:

the sealant includes at least one of a frit and an epoxy resin.

6. The organic light emitting diode display as claimed in claim 1 , wherein:

the sealant is formed by a screen printing method.

7. The organic light emitting diode display as claimed in claim 1 , wherein:

the reinforcing member is formed by capillary action.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2026
From: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
To: LONESTAR CRYSTAL DISPLAY LLC
Reel/Frame 074944/0730 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2025
From: SAMSUNG DISPLAY CO., LTD.
To: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Reel/Frame 073079/0709 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 14, 2014
From: LEE, HONG RO; KO, YO SUB; JEONG, BEUNG HWA
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 033534/0276 →