IP Library Granted Patent US 11,430,835
Granted Patent B2
US 11,430,835 · App. 16/827,371 · Granted Aug 30, 2022

Organic light emitting display device

Inventors: Sangmin Hong (Cheonan-si, KR); Heeseong Jeong (Seoul, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L27/3216H01L27/3218H01L27/3258H01L27/3276H01L27/3279H01L51/5209
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Quick Facts
Patent No.
US 11,430,835
App. No.
16/827,371
Granted
Aug 30, 2022
Kind
B2
Abstract

An OLED display device includes a substrate, a first protection layer substrate, conductive lines extending substantially in a first direction, a second protection layer, a first electrode overlapping at least a part of the conductive lines, a pixel defining layer including an opening exposing at least a part of the first electrode, an organic light emission layer, and a second electrode. The opening is divided into a first polygon and a second polygon with respect to an imaginary straight line that passes through the opening at a maximum length in the first direction. A planar area of the first polygon is different from a planar area of the second polygon.

Claims (82)

1. An organic light emitting display device, comprising:

a first switching element connected to a first connection electrode, a first node and a second node;

a second switching element connected to a first gate line, a first data line and the first node;

a third switching element connected to the first gate line, the second node and the first connection electrode;

a fourth switching element connected to a second gate line, an initialization line and the first connection electrode;

a fifth switching element connected to an emission control line, a common power line and the first node;

a sixth switching element connected to the emission control line, the second node and a first electrode;

a seventh switching element connected to a third gate line, the first electrode and the initialization line;

a first capacitor connected to the first connection electrode and the common power line;

a first organic light emission layer disposed on the first electrode;

an eighth switching element connected to a second connection electrode, a third node and a fourth node;

a ninth switching element connected to the first gate line, a second data line and the third node;

a tenth switching element connected to the first gate line, the fourth node and the second connection electrode;

an eleventh switching element connected to the second gate line, the initialization line and the second connection electrode;

a twelfth switching element connected to the emission control line, the common power line and the third node;

a thirteenth switching element connected to the emission control line, the fourth node and a second electrode;

a fourteenth switching element connected to the third gate line, the second electrode and the initialization line;

a second capacitor connected to the second connection electrode and the common power line;

a second organic light emission layer disposed on the second electrode;

an organic layer comprising a first opening exposing at least a part of the first electrode and a second opening exposing at least a part of the second electrode; and

a common electrode disposed on the first and second organic light emission layers,

wherein the first opening overlaps the first connection electrode, the second data line and the common power line,

wherein a first area is surrounded by the first data line, the emission control line, the second data line, and the initialization voltage line,

wherein a second area is surrounded by the second data line, the emission control line, a third data line, and the initialization voltage line,

wherein an entirety of the first opening is disposed within the first and second areas.

2. The organic light emitting display device of claim 1 , wherein:

the first opening is divided into a first region and a second region with respect to an imaginary straight line overlapping the second data line, and

the first region is asymmetric with the second region.

3. The organic light emitting display device of claim 2 , wherein a planar area of the first region is different from a planar area of the second region.

4. The organic light emitting display device of claim 3 , wherein the planar area of the first region and the planar area of the second region have a ratio in a range from about 1:0.1 to about 1:0.9.

5. The organic light emitting display device of claim 2 , wherein:

the imaginary straight line passes through a center of a width of the second data line,

a first overlapping area is defined by an area of the first connection electrode overlapping the first region,

a second overlapping area is defined by an area of the second data line overlapping the first region,

a third overlapping area is defined by an area of the second data line overlapping the second region,

a fourth overlapping area is defined by an area of the common power line overlapping the second region, and

a first sum of the first and second overlapping areas is substantially equal to a second sum of the third and fourth overlapping areas.

6. The organic light emitting display device of claim 1 , wherein lengths of two opposing sides of a plurality of sides defining an edge of the first opening on a plane are different from each other.

7. The organic light emitting display device of claim 1 , wherein:

the first opening overlaps the first electrode,

the first opening has a kite shape on a plane, and

the first electrode has a rhombic shape on the plane.

8. The organic light emitting display device of claim 1 , wherein:

the first opening overlaps the first electrode, and

the first opening and the first electrode have a different shape on a plane.

9. The organic light emitting display device of claim 8 , wherein:

the first electrode is linearly symmetric with respect to an imaginary straight line overlapping the second data line, and

the first opening is asymmetric with respect to the imaginary straight line.

10. The organic light emitting display device of claim 1 , wherein the first electrode has a rhombic shape on a plane.

11. The organic light emitting display device of claim 1 , wherein:

the first organic light emission layer comprises one of a red light emission layer, a green light emission layer, and a blue light emission layer, and

the second organic light emission layer comprises another one of the red light emission layer, the green light emission layer, and the blue light emission layer different from the first organic light emission layer.

12. The organic light emitting display device of claim 11 , wherein when the red light emission layer and the blue light emission layer are included in the first organic light emission layer and the second organic light emission layer, each of the red light emission layer and the blue light emission layer is divided into a first light emission portion and a second light emission portion with respect to an imaginary straight line overlapping the second data line, and a planar area of the first light emission portion is different from a planar area of the second light emission portion.

13. The organic light emitting display device of claim 11 , wherein when the green light emission layer is included in the first organic light emission layer or the second organic light emission layer, the green light emission layer is divided into a first light emission portion and a second light emission portion with respect to an imaginary straight line overlapping the second data line, and a planar area of the first light emission portion is different from a planar area of the second light emission portion.

14. The organic light emitting display device of claim 11 , wherein when the red light emission layer and the green light emission layer are included in the first organic light emission layer and the second organic light emission layer, a planar area of the red light emission layer is larger than a planar area of the green light emission layer, and

wherein when the blue light emission layer and the green light emission layer are included in the first organic light emission layer and the second organic light emission layer, a planar area of the blue light emission layer is larger than the planar area of the green light emission layer.

15. The organic light emitting display device of claim 14 , wherein when the red light emission layer and the blue light emission layer are included in the first organic light emission layer and the second organic light emission layer, the planar area of the red light emission layer is less than the planar area of the blue light emission layer.

16. The organic light emitting display device of claim 1 , wherein the first electrode has a different contour than the first opening.

17. An organic light emitting display device, comprising:

a substrate;

a common power line disposed on the substrate;

a first electrode;

a first organic light emission layer disposed on the first electrode;

a first connection electrode;

a first capacitor connected to the first connection electrode and the common power line;

a first plurality of switching elements,

wherein a group of the first plurality of switching elements is connected to the first connection electrode, and at least one of the first plurality of switching elements not included in the group is connected to the common power line;

a second capacitor connected to the common power line;

a second plurality of switching elements, wherein at least one of the second plurality of switching elements is connected to a second data line; and

an organic layer comprising an opening exposing at least a part of the first electrode,

wherein the opening overlaps the first connection electrode, the second data line and the common power line,

wherein a first area is surrounded by the first data line, an emission control line, the second data line, and an initialization voltage line,

wherein a second area is surrounded by the second data line, the emission control line, a third data line, and the initialization voltage line,

wherein an entirety of the opening is disposed within the first and second areas.

18. The organic light emitting display device of claim 17 , wherein:

the opening is divided into a first region and a second region with respect to an imaginary straight line overlapping the second data line, and

the first region is asymmetric with the second region.

19. The organic light emitting display device of claim 18 , wherein a planar area of the first region is different from a planar area of the second region.

20. The organic light emitting display device of claim 17 , wherein:

the opening overlaps the first electrode,

the opening has a kite shape on a plane, and

the first electrode has a rhombic shape on the plane.

Priority Claims (1)
KR 10-2017-0027144 · Mar 2, 2017 · national
Continuity (2)
Continuation 15910199 · Mar 2, 2018
Related Publication 20200219943A1 · Jul 9, 2020
Cited By (1)
US 12,501,806