IP Library Granted Patent US 10,854,687
Granted Patent B2
US 10,854,687 · App. 15/898,346 · Granted Dec 1, 2020

Organic light emitting display device

Inventors: Sun Kyu Joo (Suwon-si, KR); Byung Chul Kim (Suwon-si, KR); Sung Chul Kim (Seongnam-si, KR); Su Jeong Kim (Yongin-si, KR); In Ok Kim (Osan-si, KR); Hye Ran Mun (Yangju-si, KR); In Seok Song (Pocheon-si, KR); Keun Chan Oh (Hwaseong-si, KR); Jae Jin Lyu (Yongin-si, KR); Yui Ku Lee (Asan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L27/322H01L27/326H01L27/3211H01L51/5056H01L51/5072H01L51/5092H01L51/5203H01L51/5284H01L51/56H01L27/3246H01L27/3283
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 10,854,687
App. No.
15/898,346
Granted
Dec 1, 2020
Kind
B2
Abstract

An organic light emitting display device comprising: a substrate; a first pixel electrode disposed on the substrate; a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode; a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film; and a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer. Light having passed through the first opening of the black matrix is one of red light, green light, and blue light. The first opening of the black matrix may have a shape with a curved portion.

Claims (69)

1. An organic light emitting display device comprising:

a substrate;

a first pixel electrode disposed on the substrate;

a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode;

a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film; and

a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer, wherein

light having passed through the first opening of the black matrix is one of red light, green light, and blue light, and

the first opening of the black matrix has a circular shape which is composed of assemblies of dots that are spaced a same distance apart from a virtual center point of the first opening of the black matrix.

2. The organic light emitting display device of claim 1 , wherein the first opening of the black matrix has a smaller area than the first opening of the pixel defining film.

3. The organic light emitting display device of claim 1 , further comprising a color filter disposed to cover the first opening of the black matrix.

4. The organic light emitting display device of claim 3 , further comprising an encapsulation layer disposed on the pixel defining film, wherein the black matrix and the color filter are disposed on the encapsulation layer.

5. The organic light emitting display device of claim 3 , wherein a width of a region in which the black matrix overlaps with one side of the color filter ranges from 6 μm to 12 μm.

6. The organic light emitting display device of claim 1 , wherein the first opening of the pixel defining film is substantially circular.

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

a second pixel electrode disposed on the same layer as the first pixel electrode; and

a second organic light emitting layer disposed on the pixel defining film and overlapping with the second pixel electrode, wherein

the pixel defining film further comprises a second opening at least partially exposing the second pixel electrode,

the black matrix further comprises a second opening overlapping with the second organic light emitting layer, and

light having passed through the second opening of the black matrix has a different display color from the light having passed through the first opening of the black matrix.

8. The organic light emitting display device of claim 7 , wherein the second opening of the black matrix has a shape with a curved portion.

9. The organic light emitting display device of claim 7 , further comprising:

a third pixel electrode disposed on the same layer as the first pixel electrode; and

a third organic light emitting layer disposed on the pixel defining film and overlapping with the third pixel electrode, wherein

the pixel defining film further comprises a third opening at least partially exposing the third pixel electrode,

the black matrix further comprises a third opening overlapping with the third organic light emitting layer, and

light having passed through the third opening of the black matrix, the light having passed through the first opening of the black matrix, and the light having passed through the second opening of the black matrix have different display colors.

10. The organic light emitting display device of claim 9 , wherein a shortest distance from the second opening of the pixel defining film to the first opening of the pixel defining film is the same as a shortest distance from the second opening of the pixel defining film to the third opening of the pixel defining film.

11. The organic light emitting display device of claim 9 , further comprising a first color filter layer disposed on the black matrix and including a first opening overlapping with the first opening of the black matrix and a second opening overlapping with the second opening of the black matrix, wherein

the first color filter layer overlaps with the third opening of the black matrix and surrounds the first opening of the black matrix and the second opening of the black matrix.

12. The organic light emitting display device of claim 11 , wherein the first color filter layer is a blue color filter layer for transmitting blue light.

13. The organic light emitting display device of claim 11 , further comprising:

a first color filter overlapping with the first opening of the first color filter layer; and

a second color filter overlapping with the second opening of the first color filter layer.

14. The organic light emitting display device of claim 11 , further comprising a second color filter layer disposed on the first color filter layer and overlapping with the first opening of the black matrix, wherein

the second color filter layer surrounds the second opening of the first color filter layer.

15. The organic light emitting display device of claim 9 , further comprising:

a first color filter overlapping with the first opening of the black matrix;

a second color filter overlapping with the second opening of the black matrix; and

a first color filter layer disposed on the first color filter and the second color filter, wherein

the first color filter layer overlaps with the third opening of the black matrix and surrounds the first opening of the black matrix and the second opening of the black matrix.

16. An organic light emitting display device comprising:

a substrate;

a first pixel electrode disposed on the substrate;

a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode;

a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film; and

a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer, wherein

the first opening of the black matrix has a smaller area than the first opening of the pixel defining film, and

the first opening of the black matrix has a circular shape which is composed of assemblies of dots that are spaced a same distance apart from a virtual center point of the first opening of the black matrix.

17. The organic light emitting display device of claim 16 , wherein the first opening of the pixel defining film is substantially circular.

18. The organic light emitting display device of claim 16 , wherein light having passed through the first opening of the black matrix is one of red light, green light, and blue light.

19. The organic light emitting display device of claim 16 , further comprising a first color filter disposed to cover the first opening of the black matrix, wherein

a width of a region in which the black matrix overlaps with one side of the color filter ranges from 6 μm to 12 μm.

20. The organic light emitting display device of claim 16 , further comprising a second pixel electrode and a third pixel electrode disposed on the same layer as the first pixel electrode, wherein

the pixel defining film further comprises a second opening at least partially exposing the second pixel electrode and a third opening at least partially exposing the third pixel electrode,

the black matrix further comprises a second opening overlapping with the second pixel electrode and a third opening overlapping with the third pixel electrode, and

light having passed through the first opening of the black matrix, light having passed through the second opening of the black matrix, and light having passed through the third opening of the black matrix have different display colors from one another.

21. The organic light emitting display device of claim 20 , further comprising a first color filter layer disposed on the black matrix and including a first opening overlapping with the first opening of the black matrix and a second opening overlapping with the second opening of the black matrix, wherein

the first color filter layer overlaps with the third opening of the black matrix and surrounds the first opening of the black matrix and the second opening of the black matrix.

22. The organic light emitting display device of claim 21 , wherein the first color filter layer is a blue color filter layer for transmitting blue light.

23. The organic light emitting display device of claim 21 , further comprising a yellow color filter overlapping with the first opening and the second opening of the first color filter layer.

24. The organic light emitting display device of claim 21 , further comprising a second color filter layer disposed on the first color filter layer and overlapping with the first opening of the black matrix.

25. An organic light emitting display device comprising:

a substrate;

a first pixel electrode disposed on the substrate;

a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode;

a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film; and

a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer, wherein

light having passed through the first opening of the black matrix is one of red light, green light, and blue light, and

the first opening of the black matrix has a circular shape or a non-elliptical polygonal shape similar to a circle which is composed of assemblies of dots that are each spaced apart from a center point of the opening at a distance defined by the center point of the first opening and a circular or polygonal shaped perimeter of the first opening.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2018
From: JOO, SUN KYU; KIM, BYUNG CHUL; KIM, SUNG CHUL; KIM, SU JEONG; KIM, IN OK; MUN, HYE RAN; SONG, IN SEOK; OH, KEUN CHAN; LYU, JAE JIN; LEE, YUI KU
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 045369/0034 →
Priority Claims (1)
KR 10-2017-0085074 · Jul 4, 2017 · national
Continuity (1)
Related Publication 20190013363A1 · Jan 10, 2019
Cited By (3)
US 12,284,897 US 12,495,709 US 12,575,305