Organic light emitting display device with substantially polygonal sub-pixels

• US 9,307,584 B2
• Filed: 10/17/2013
• Issued: 04/05/2016
• Est. Priority Date: 06/30/2011
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Ko, Jung-Woo
• Primary Examiner(s): Santiago, Mariceli
• Application Number:
  US14/056,926
• Publication Number:
  US 20140042887A1
• Time in Patent Office: 901 Days
• Field of Search: 313500-512
• US Class Current: 1/1
• 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, at least one of the sub-pixels being a substantially polygon-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 different from the other two of the sides,

wherein the plurality of sub-pixels are arranged in first and second columns along a first direction, each of the columns extending in a second direction substantially perpendicular to the first direction and having only one of the sub-pixels in each row, each of the first columns comprising at least one of the first sub-pixels, each of the second columns comprising at least one of the second sub-pixels and at least one of the third sub-pixels, and

wherein the organic light emitting devices in each of the first columns do not overlap along the second direction with the organic light emitting devices in any of the second columns.

2. 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.

3. The organic light emitting display device of claim 1, wherein the centers of the first sub-pixels are arranged along the first direction with no intervening portion of the second sub-pixels or the third sub-pixels therebetween.

4. An organic light emitting display device comprising:

a plurality of sub-pixels, at least one of the sub-pixels being a 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 the first, second, and third sub-pixels are arranged in a column direction, and

wherein a first center line in the column direction through centers of aligned ones of the first sub-pixels in a column is separated from a second center line in the column direction through centers of aligned ones of the second sub-pixels in the column, 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.

5. 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 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. An organic light emitting display device comprising:

a plurality of sub-pixels, at least one of the sub-pixels being a 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 the first, second, and third sub-pixels are arranged in a column direction, and

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

wherein a third center line in the column direction through centers of aligned ones of the third sub-pixels 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.

11. An organic light emitting display device comprising:

a plurality of sub-pixels, at least one of the sub-pixels being a 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 direction and are adjacent along a second direction that is at an angle to the first direction,

wherein the first, second, and third sub-pixels are arranged in a column direction, and

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

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

12. The organic light emitting display device of claim 11, wherein a width of one of the first sub pixels along the first direction is narrower than a width of the one of the first sub pixels along the second direction.

13. The organic light emitting display device of claim 11, wherein a width of each of the third sub-pixels along the first direction is narrower than a width of each of the second sub-pixels along the first direction.

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