Pixel arrangement structure for organic light emitting display device

• US 10,854,683 B2
• Filed: 11/13/2017
• Issued: 12/01/2020
• Est. Priority Date: 03/06/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Sang-Shin
• Primary Examiner(s): Yang, Kwang-Su
• Application Number:
  US15/811,599
• Publication Number:
  US 20180069057A1
• Time in Patent Office: 1,114 Days
• Field of Search: 345 82, 345419
• 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

A pixel arrangement structure of an OLED display is provided. The pixel arrangement structure includes: a first pixel having a center coinciding with a center of a virtual square; a second pixel separated from the first pixel and having a center at a first vertex of the virtual square; and a third pixel separated from the first pixel and the second pixel, and having a center at a second vertex neighboring the first vertex of the virtual square.

Claims

1. A pixel arrangement structure of an organic light emitting diode (OLED) display comprising:

a plurality of pixels for displaying an image on the OLED display and comprising;

a first pixel;

a pair of second pixels separated from the first pixel, the second pixels being located at opposite sides of the first pixel along a first line on which the first pixel, the second pixels, and another first pixel are consecutively arranged such that the first line passes through respective centers of the first pixel, the second pixels, and the other first pixel; and

a pair of third pixels separated from the first pixel and the second pixels, the third pixels being located at opposite sides of the first pixel along a second line on which the first pixel, the third pixels. and an additional first pixel are consecutively arranged such that the second line passes through respective centers of the first pixel, the third pixels, and the additional first pixel, the second line crossing the first line at a location of the first pixel,

wherein a first distance between the second pixels is greater than a second distance between one of the second pixels and a neighboring one of the third pixels,

wherein the first pixels are configured to emit green light, which is a color that is different from light emitted by the second pixels and the third pixels,

wherein the first pixels are smaller than at least one of the second pixels or the third pixels, and

wherein each of the second pixels has a larger area than each of the third pixels.

2. The pixel arrangement structure of claim 1, wherein the first pixels, the second pixels, and the third pixels have polygonal shapes, and

wherein each of the second pixels and the third pixels has a larger area than the first pixel.

3. The pixel arrangement structure of claim 2, wherein the second pixels and the third pixels have octagonal shapes.

4. The pixel arrangement structure of claim 1, wherein the first pixels, the second pixels, and the third pixels are configured to emit different color lights.

5. The pixel arrangement structure of claim 4, wherein the second pixels are configured to emit blue light, and the third pixels are configured to emit red light.

6. The pixel arrangement structure of claim 1, wherein each of the second pixels has a larger area than that of the first pixel.

7. The pixel arrangement structure of claim 1, wherein the second pixels are substantially equidistant from the first pixel interposed between the second pixels, and the third pixels are substantially equidistant from the first pixel interposed between the third pixels.

8. The pixel arrangement structure of claim 1, wherein the first distance is measured between respective centers of the second pixels, and the second distance is measured between respective centers of the one of the second pixels and the neighboring one of the third pixels.

9. The pixel arrangement structure of claim 1, wherein the first line passes through respective centers of the first pixel and the second pixels, and the second line passes through respective centers of the first pixel and the third pixels.

10. The pixel arrangement structure of claim 1, wherein each of the first pixels, the second pixels, and the third pixels has a convex shape.

11. The pixel arrangement structure of claim 1, wherein at least one of the first pixels, the second pixels, and the third pixels has a non-quadrilateral shape.

12. The pixel arrangement structure of claim 11, wherein at least one of the first pixels, the second pixels, and the third pixels has five or more interior angles.

13. A pixel arrangement structure of an organic light emitting diode (OLED) display comprising:

a plurality of pixels for displaying an image on the OLED display and comprising;

a first pixel;

a pair of second pixels separated from the first pixel, the second pixels being located at opposite sides of the first pixel along a first line on which the first pixel, the second pixels, and another first pixel are consecutively arranged such that the first line passes through respective centers of the first pixel, the second pixels, and the other first pixel; and

a pair of third pixels separated from the first pixel and the second pixels, the third pixels being located at opposite sides of the first pixel along a second line on which the first pixel, the third pixels, and an additional first pixel are consecutively arranged such that the second line passes through respective centers of the first pixel, the third pixels, and the additional first pixel, the second line crossing the first line at a location of the first pixel,

wherein a first distance between the second pixels is greater than a second distance between one of the second pixels and a neighboring one of the third pixels,

wherein the first pixels are configured to emit green light,

wherein the first pixels have a smaller size than at least one of the second pixels or the third pixels, and

wherein each of the second pixels has a larger area than each of the third pixels.

14. A pixel arrangement structure of an organic light emitting diode (OLED) display comprising:

a plurality of pixels for displaying an image on the OLED display and comprising;

a first pixel;

a pair of second pixels separated from the first pixel, the second pixels being located at opposite sides of the first pixel along a first line on which the first pixel, the second pixels, and another first pixel are consecutively arranged such that the first line passes through respective centers of the first pixel, the second pixels, and the other first pixel; and

a pair of third pixels separated from the first pixel and the second pixels, the third pixels being located at opposite sides of the first pixel along a second line on which the first pixel, the third pixels,. and an additional first pixel are consecutively arranged such that the second line passes through respective centers of the first pixel, the third pixels, and the additional first pixel, the second line crossing the first line at a location of the first pixel,

wherein a first separated distance between adjacent ones of the first pixels is greater than a second separated distance between one of the first pixels and a neighboring pixel of the second pixels or the third pixels,

wherein the first pixels are configured to emit light having a color that is different from colors of the second pixels and the third pixels,

wherein the first pixels have a different size from at least one of the second pixels or the third pixels,

wherein at least one of the first pixels, the second pixels, and the third pixels is a convex polygon having five or more sides,

wherein the first separated distance and the second separated distance are shortest distances between respective ones of the pixels, and

wherein each of the second pixels has a larger area than each of the third pixels.

15. A pixel arrangement structure of an organic light emitting diode (OLED) display comprising:

a plurality of pixels for displaying an image on the OLED display and comprising;

a first pixel;

a pair of second pixels separated from the first pixel, the second pixels being located at opposite sides of the first pixel along a first line passing through respective centers of the first pixel and the second pixels on which the first pixel, the second pixels, and another first pixel are consecutively arranged such that the first line passes through respective centers of the first pixels, the second pixels, and the other first pixel; and

a pair of third pixels separated from the first pixel and the second pixels, the third pixels being located at opposite sides of the first pixel along a second line passing through respective centers of the first pixel and the third pixels on which the first pixel, the third pixels, and an additional first pixel are consecutively arranged such that the second line passes through respective centers of the first pixel, the third pixels, and the additional first pixel, the second line crossing the first line at a location of the first pixel,

wherein a first distance between the second pixels is greater than a second distance between one of the second pixels and a neighboring one of the third pixels,

wherein the first pixels are configured to emit green light, which is a color that is different from light emitted by the second pixels and the third pixels,

wherein the first pixels are smaller than at least one of the second pixels or the third pixels, and

wherein each of the second pixels has a larger area than each of the third pixels.