Organic light emitting display device with substantially polygonal sub-pixels

• US 9,653,521 B2
• Filed: 03/14/2016
• Issued: 05/16/2017
• 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:
  US15/069,865
• Publication Number:
  US 20160197125A1
• Time in Patent Office: 428 Days
• 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 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 has different length from lengths of 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, 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,

wherein the plurality of first sub-pixels, the plurality of second sub-pixels, and the plurality of third sub-pixels have a substantially same length as each other along the second direction, and each of the plurality of third sub-pixels has an area different from areas of the plurality of first sub-pixels and the plurality of second sub-pixels, and

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.

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 a width of at least one of the first sub pixels along the first direction is narrower than a width of at least one of the second sub pixels along the first direction.

4. The organic light emitting display device of claim 1, wherein a width of at least one of the third sub pixels along the first direction is narrower than a width of at least one of the first sub pixels along the first direction.

5. An organic light emitting display device comprising:

a plurality of sub-pixels, 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 first, second and third sub-pixels are arranged in a column direction,

wherein the plurality of first sub-pixels, the plurality of second sub-pixels, and the plurality of third sub-pixels have a substantially same length as each other along the column direction or a second direction perpendicular to the column direction, and each of the plurality of third sub-pixels has an aspect ratio different from aspect ratios of the plurality of first sub-pixels and the plurality of second sub-pixels, and

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

6. The organic light emitting display device of claim 5, wherein a third center line in the column direction through centers of aligned ones of the third sub-pixels 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 column direction.

7. The organic light emitting display device of claim 6, wherein a distance between the first center line and the third center line is shorter than a distance between the first center line and the second center line.

8. The organic light emitting display device of claim 7, wherein the first color is green, the second color is blue, and the third color is red.