IP Library › Granted Patent US 12,648,322
Granted Patent B2
US 12,648,322 · App. 19/204,237 · Granted Jun 2, 2026

Pixel arrangement structure for organic light emitting display device

Inventor: Sang-Shin Lee (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10K59/352H10K59/353
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Quick Facts
Patent No.
US 12,648,322
App. No.
19/204,237
Granted
Jun 2, 2026
Kind
B2
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 (60)

1 . A pixel arrangement structure of an organic light emitting diode display, comprising:

a plurality of first pixels each having a center coinciding with a center of a respective one of virtual squares, the plurality of first pixels being disposed adjacent to each other along a first direction and a second direction perpendicular to the first direction;

a plurality of second pixels separated from the first pixels and each having a center at a first vertex of a respective one of the virtual squares,

wherein each of the second pixels located at the first vertex of a diagonal line of the respective one of the virtual squares is spaced apart from a second pixel located at another vertex of the diagonal line with a first pixel interposed therebetween; and

a plurality of third pixels separated from the first pixels and the second pixels, and each having a center at a second vertex neighboring the first vertex of a respective one of the virtual squares,

wherein a distance between each of the plurality of first pixels and an adjacent second pixel of the plurality second pixels as well as a distance between each of the plurality of first pixels and an adjacent third pixel of the plurality of third pixels is a same first length,

wherein a distance between each of the plurality of second pixels and an adjacent third pixel of the plurality of third pixels is a same second length different from the first length, and a distance between two adjacent first pixels of the plurality of first pixels is a third length that is longer than the first length and the second length,

wherein the plurality of first pixels and the plurality of second pixels are alternately arranged with each other along a third direction different from the first direction and the second direction,

wherein edges of each of the second pixels are disposed on a first line in the third direction,

wherein edges of the first pixel parallel to the third direction are not disposed on the first line,

wherein the plurality of first pixels and the plurality of third pixels are alternately arranged with each other along a fourth direction perpendicular to the third direction,

wherein edges of each of the third pixels are disposed on a second line in the fourth direction,

wherein edges of the first pixel parallel to the fourth direction are not disposed on the second line, and

wherein a first region, which extends in the first direction and has a width in the second direction that is equal to a width of the first pixel in the second direction, does not overlap the third pixel, and a second region, which extends in the second direction and has a width in the first direction that is equal to the width of the first pixel in the first direction, does not overlap the third pixel.

2 . The pixel arrangement structure of claim 1 , wherein

the second pixels have a same shape as the third pixels.

3 . The pixel arrangement structure of claim 1 , wherein

the second pixels and the third pixels have different shapes from the first pixels.

4 . The pixel arrangement structure of claim 1 , wherein

the first region does not overlap the second pixel and the second region does not overlap the second pixel.

5 . The pixel arrangement structure of claim 1 , wherein

the third pixels are separated from each other by a first pixel.

6 . The pixel arrangement structure of claim 1 , wherein

a pair of the second pixels and a pair of the third pixels enclose a first pixel in a respective one of the virtual squares.

7 . The pixel arrangement structure of claim 1 , wherein

a pair of the virtual squares share a common side, and

a pair of the first pixels have centers respectively coinciding with centers of the pair of virtual squares.

8 . The pixel arrangement structure of claim 7 , wherein

the first pixel has a convex shape with no vertex angle of 90 degrees.

9 . The pixel arrangement structure of claim 1 , wherein

one of the first pixels has two parallel edges extending in the third direction or fourth direction, and a connection portion connecting ends of the two parallel edges, and

wherein a length of the connection portion is longer than a shortest distance between the two parallel edges.

10 . The pixel arrangement structure of claim 9 , wherein

the connection portion is symmetric with respect to a line extending in the third direction or the fourth direction that passes through a center of the first pixel.

11 . The pixel arrangement structure of claim 1 , wherein

one of the first pixels comprises a first end portion, a center portion, and a second end portion arranged along the third direction or fourth direction, and

a width of each of the first and second end portions gradually decreases from the center portion towards respective ends of the one of the first pixels along the third direction or fourth direction.

12 . The pixel arrangement structure of claim 1 , wherein

each of the first pixels has a convex shape such that a line bisecting the first pixel along a long axis thereof has a greater length than a line bisecting the first pixel along a short axis thereof.

13 . The pixel arrangement structure of claim 1 , wherein

each of the second pixels is larger in area than each of the third pixels.

14 . The pixel arrangement structure of claim 1 , wherein

the first pixels, the second pixels, and the third pixels are configured to emit light of different color.

15 . The pixel arrangement structure of claim 14 , wherein

the first pixels are each configured to emit green light,

either the second pixels or the third pixels are each configured to emit blue light, and

the other one of the second pixels or the third pixels are each configured to emit red light.

16 . The pixel arrangement structure of claim 1 , wherein

a shortest distance between two nearest ones of the first pixels in the first direction is greater than a width in the first direction of one of the third pixels.

17 . The pixel arrangement structure of claim 1 , wherein

one of the first pixels is symmetric with respect to a line extending in the third direction or the fourth direction that passes through a center of the first pixel.

18 . The pixel arrangement structure of claim 1 , wherein

a pair of the first pixels on respective sides of one of the second pixels in the third direction or the fourth direction are symmetric with each other with respect to the one of the second pixels, and

a pair of the first pixels on respective sides of one of the third pixels in the third direction or the fourth direction are symmetric with each other with respect to the one of the third pixels.

19 . The pixel arrangement structure of claim 1 , wherein

a line bisecting a long axis of the first pixel passes through a center of the first pixel, and

a line bisecting a short axis of the first pixel passes through a center of the first pixel.

20 . The pixel arrangement structure of claim 1 , wherein

any two of the first pixels that are immediately adjacent to each other have different maximum widths in the third direction, and

any two of the first pixels that are immediately adjacent to each other have different maximum widths in the fourth direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2025
From: LEE, SANG-SHIN
To: SAMSUNG DISPLAY CO. LTD.
Reel/Frame 071210/0071 →
Priority Claims (1)
KR 10-2012-0022967 · Mar 6, 2012 · national
Continuity (6)
Continuation 18443230 · Feb 15, 2024
Continuation 18175351 · Feb 27, 2023
Continuation 16505536 · Jul 8, 2019
Continuation 15811599 · Nov 13, 2017
Continuation 13614197 · Sep 13, 2012
Related Publication 20250268051A1 · Aug 21, 2025
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