Organic light emitting display device with substantially polygonal sub-pixles

• US 8,598,784 B2
• Filed: 04/17/2012
• Issued: 12/03/2013
• Est. Priority Date: 06/30/2011
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Group)
• Original Assignee: Samsung Display Company Limited (Samsung Group)
• Inventors: Ko, Jung-Woo
• Primary Examiner(s): Santiago, Mariceli
• Assistant Examiner(s): ZIMMERMAN, GLENN D
• Application Number:
  US13/448,947
• Publication Number:
  US 20130002118A1
• Time in Patent Office: 595 Days
• Field of Search: 313/1, 313/504, 428/690, 445/24, 445/25, 427/66, 345/76, 345/45, 345/36
• US Class Current: 313/504
• CPC Class Codes: G09G 2300/0452 Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: H05B 33/02 Details
• CPC Class Codes: H10K 59/352 the areas of the RGB subpixels being different
• CPC Class Codes: H10K 59/353 characterised by the geometrical arrangement of the RGB subpixels

Abstract

An organic light emitting display device includes a plurality of sub-pixels arranged in a substantially hexagonally-shaped structure, each of the sub-pixels including a corresponding one of a plurality of organic light emitting devices, wherein the plurality of sub-pixels includes a plurality of first sub-pixels for emitting light of a first color, a plurality of second sub-pixels for emitting light of a second color, and a plurality of third sub-pixels for emitting light of a third color, and wherein centers of adjacent ones of the first, second, and third sub-pixels form a triangle having one of three sides that is shorter than the other two of the sides.

Claims

1. An organic light emitting display device comprising:

a plurality of sub-pixels each being substantially hexagonally-shaped, each of the sub-pixels comprising a corresponding one of a plurality of organic light emitting devices,

wherein the plurality of sub-pixels comprises;

a plurality of first sub-pixels for emitting light of a first color;

a plurality of second sub-pixels for emitting light of a second color; and

a plurality of third sub-pixels for emitting light of a third color, and

wherein centers of adjacent ones of the first, second, and third sub-pixels having no intervening sub-pixels therebetween form a triangle having one of three sides that is shorter than the other two of the sides.

2. The organic light emitting display device of claim 1, wherein the three sides of the triangle have different lengths.

3. The organic light emitting display device of claim 1, wherein the first color is green, the second color is blue, and the third color is red.

4. An organic light emitting display device comprising:

a plurality of sub-pixels each being substantially hexagonally-shaped, each of the sub-pixels comprising a corresponding one of a plurality of organic light emitting devices,

wherein the plurality of sub-pixels comprises;

a plurality of first sub-pixels for emitting light of a first color;

a plurality of second sub-pixels for emitting light of a second color; and

a plurality of third sub-pixels for emitting light of a third color,

wherein the sub-pixels are adjacent differently colored ones of the sub-pixels in a first direction and are adjacent differently colored ones of the sub-pixels in a second direction that is different from the first direction, and

wherein a first center line through centers of aligned ones of the first sub-pixels that are aligned in the second direction is separated from a second center line through centers of aligned ones of the second sub-pixels that are aligned in the second direction, the aligned ones of the second sub-pixels being adjacent corresponding ones of the aligned ones of the first sub-pixels in the second direction.

6. The organic light emitting display device of claim 4, wherein a third center line through centers of aligned ones of the third sub-pixels that are aligned in the second direction coincides with the first center line, the aligned ones of the third sub-pixels being adjacent corresponding ones of the aligned ones of the first sub-pixels in the second direction.

7. The organic light emitting display device of claim 4, wherein a third center line through centers of aligned ones of the third sub-pixels that are aligned in the second direction is separated from the second center line, the aligned ones of the third sub-pixels being adjacent corresponding ones of the aligned ones of the first sub-pixels in the second direction.

8. The organic light emitting display device of claim 4, wherein a distance between the centers of two of the first sub-pixels that are nearest in the first direction is shorter than a distance between the centers of two of the second sub-pixels that are nearest in the first direction.

9. The organic light emitting display device of claim 4, wherein a distance between the centers of two of the first sub-pixels that are nearest in the first direction is shorter than a distance between the centers of two of the third sub-pixels that are nearest in the first direction.

10. The organic light emitting display device of claim 4, wherein a distance between the centers of two of the third sub-pixels that are nearest in the first direction is shorter than a distance between the centers of two of the second sub-pixels that are nearest in the first direction.

11. The organic light emitting display device of claim 4, wherein the first color is green, the second color is blue, and the third color is red.

5. An organic light emitting display device comprising:

a plurality of sub-pixels each being substantially hexagonally-shaped, each of the sub-pixels comprising a corresponding one of a plurality of organic light emitting devices,

wherein the plurality of sub-pixels comprises;

a plurality of first sub-pixels for emitting light of a first color;

a plurality of second sub-pixels for emitting light of a second color; and

a plurality of third sub-pixels for emitting light of a third color,

wherein the sub-pixels are adjacent differently colored ones of the sub-pixels in a first direction and are adjacent differently colored ones of the sub-pixels in a second direction that is different from the first direction,

wherein a first center line through centers of the first sub-pixels in the second direction is separated from a second center line through centers of the second sub-pixels that are aligned in the second direction, the second sub-pixels being adjacent corresponding ones of the first sub-pixels in the second direction, and

wherein a third center line through centers of aligned ones of the third sub-pixels that are aligned in the second direction coincides with the second center line, the aligned ones of the third sub-pixels being adjacent corresponding ones of the aligned ones of the first sub-pixels in the second direction.

12. An organic light emitting display device comprising:

a plurality of sub-pixels each being substantially hexagonally-shaped, each of the sub-pixels comprising a corresponding one of a plurality of organic light emitting devices,

wherein the plurality of sub-pixels comprises;

a plurality of first sub-pixels for emitting light of a first color;

a plurality of second sub-pixels for emitting light of a second color that is different from the first color; and

a plurality of third sub-pixels for emitting light of a third color that is different from the first and second colors,

wherein sub-pixels of different colors from among the plurality of sub-pixels are adjacent along a first axis and are adjacent along a second axis that is at an angle to the first axis, and

wherein a width of each of the first sub-pixels along the first axis is narrower than a width of each of the second sub-pixels along the first axis.

13. The organic light emitting display device of claim 12, wherein a width of one of the first sub-pixels along the first axis is narrower than a width of the one of the first sub-pixels along the second axis.

14. The organic light emitting display device of claim 12, wherein centers of the first sub-pixels in a column arranged along the second axis are offset along the first axis from centers of the second sub-pixels arranged in the column.

15. The organic light emitting display device of claim 14, wherein the centers of the first sub-pixels in odd number columns and the centers of the first sub-pixels in even number columns are shifted in opposite directions along the first axis.

16. The organic light emitting display device of claim 12, wherein a width of each of the third sub-pixels along the first axis is narrower than a width of each of the second sub-pixels along the first axis.

17. The organic light emitting display device of claim 16, wherein a width of one of the third sub-pixels along the first axis is narrower than a width of the one of the third sub-pixels along the second axis.

18. The organic light emitting display device of claim 16, wherein centers of the third sub-pixels in a column arranged along the second axis are offset along the first axis from centers of the second sub-pixels arranged in the column.

19. The organic light emitting display device of claim 16, wherein centers of the third sub-pixels in odd number columns and centers of the third sub-pixels in even number columns are shifted along the first axis in opposite directions.

20. The organic light emitting display device of claim 12, wherein a width of each of the second sub-pixels along the first axis is narrower than a width of each of the second sub-pixels along the second axis.

21. The organic light emitting display device of claim 12, wherein the first color is green, the second color is blue, and the third color is red.