Display device, mask assembly, and apparatus for manufacturing the display device

Patent metadata

Field	Value
Publication number	US-11557635-B2
Application number	US-202016899394-A
Country	US
Kind code	B2
Filing date	Jun 11, 2020
Priority date	Dec 10, 2019
Publication date	Jan 17, 2023
Grant date	Jan 17, 2023

Abstract

A display device, a mask assembly, and an apparatus for manufacturing the display device are provided. The display device may reduce glare and includes sub-pixels having accurate and precise patterns. The display device including a first sub-pixel having a quadrangular shape, a second sub-pixel facing a first side of the first sub-pixel, the second sub-pixel having a quadrangular shape, and a third sub-pixel facing the first side of the first sub-pixel and spaced apart from the second sub-pixel, the third sub-pixel having a quadrangular shape, where a distance from the first side of the first sub-pixel to the second sub-pixel and a distance from the first side of the first sub-pixel to the third sub-pixel are different from each other.

First claim

What is claimed is:

1. A display device comprising:
a first sub-pixel having a quadrangular shape;
a second sub-pixel facing a first side of the first sub-pixel, the second sub-pixel having a quadrangular shape; and
a third sub-pixel facing the first side of the first sub-pixel and spaced apart from the second sub-pixel, the third sub-pixel having a quadrangular shape,
wherein a distance from the first side of the first sub-pixel to the second sub-pixel and a distance from the first side of the first sub-pixel to the third sub-pixel are different from each other, and
wherein:
an outline connecting a portion of an edge of the second sub-pixel to a portion of an edge of the third sub-pixel is square; and/or
the display device further comprises:
a plurality of first sub-pixels comprising the first sub-pixel, the plurality of first sub-pixels including centers arranged in a straight line in a first direction and arranged in a serpentine shape in a second direction;
a plurality of first sub-pixels comprising the first sub-pixel arranged in a first direction, wherein the second sub-pixel facing the first side of the first sub-pixel and one of another second sub-pixel or another third sub-pixel facing a second side of the first sub-pixel are symmetrical to each other about a straight line crossing centers of the plurality of first sub-pixels arranged in the first direction;
a spacer between the first sub-pixel and the second sub-pixel or between the first sub-pixel and the third sub-pixel; and/or
a plurality of first sub-pixels comprising the first sub-pixel arranged in a first direction, wherein a long side of the second sub-pixel or a long side of the third sub-pixel forms an angle of about 45 degrees with respect to a straight line crossing centers of the plurality of first sub-pixels arranged in the first direction.

2. The display device of claim 1 , wherein at least a side portion of the second sub-pixel and at least a side portion of the third sub-pixel are within a length range of the first side of the first sub-pixel.

3. The display device of claim 1 , wherein a short side of the second sub-pixel is parallel to the first side of the first sub-pixel.

4. The display device of claim 1 , wherein a short side of the third sub-pixel is parallel to the first side of the first sub-pixel.

5. The display device of claim 1 , further comprising the plurality of first sub-pixels comprising the first sub-pixel, the plurality of first sub-pixels including the centers arranged in the straight line in the first direction and arranged in the serpentine shape in the second direction.

6. The display device of claim 5 , wherein each of the plurality of first sub-pixels is configured to emit green light.

7. The display device of claim 5 , wherein the first direction is a direction parallel to a long side of the display device.

8. The display device of claim 1 , further comprising a plurality of second sub-pixels comprising the second sub-pixel and a plurality of third sub-pixels comprising the third sub-pixel,
wherein centers of first ones of the plurality of second sub-pixels or first ones of the plurality of third sub-pixels are arranged in a straight line.

9. The display device of claim 1 , further comprising a plurality of second sub-pixels comprising the second sub-pixel and a plurality of third sub-pixels comprising the third sub-pixel,
wherein centers of first ones of the plurality of second sub-pixels or first ones of the plurality of third sub-pixels are arranged in a serpentine shape in one direction.

10. The display device of claim 1 , further comprising the plurality of first sub-pixels comprising the first sub-pixel arranged in the first direction,
wherein the second sub-pixel facing the first side of the first sub-pixel and the one of the another second sub-pixel or the another third sub-pixel facing the second side of the first sub-pixel are symmetrical to each other about the straight line crossing the centers of the plurality of first sub-pixels arranged in the first direction.

11. The display device of claim 1 , wherein a length of a long side of the second sub-pixel and a length of a long side of the third sub-pixel are substantially equal to each other.

12. The display device of claim 1 , further comprising the spacer between the first sub-pixel and the second sub-pixel or between the first sub-pixel and the third sub-pixel.

13. The display device of claim 12 , wherein a shortest distance from the second sub-pixel to the spacer is substantially equal to a shortest distance from another third sub-pixel to the spacer.

14. The display device of claim 1 , wherein a short side of the second sub-pixel or a short side of the third sub-pixel overlaps one side of the first sub-pixel and is arranged in a straight line extending from one side of another first sub-pixel.

15. The display device of claim 1 , further comprising the plurality of first sub-pixels comprising the first sub-pixel arranged in the first direction,
wherein the long side of the second sub-pixel or the long side of the third sub-pixel forms the angle of about 45 degrees with respect to the straight line crossing the centers of the plurality of first sub-pixels arranged in the first direction.

16. The display device of claim 1 , wherein an area of the first sub-pixel is greater than at least one of an area of the second sub-pixel or an area of the third sub-pixel.

17. The display device of claim 1 , wherein an area of the second sub-pixel and an area of the third sub-pixel are different from each other.

18. The display device of claim 1 , wherein the outline connecting the portion of the edge of the second sub-pixel to the portion of the edge of the third sub-pixel is square.

19. The display device of claim 1 , wherein a vertex of at least one of the first sub-pixel, the second sub-pixel, or the third sub-pixel is chamfered.

20. The display device of claim 1 , wherein the first sub-pixel is configured to emit blue light, one of the second sub-pixel or the third sub-pixel is configured to emit red light, and the other of the second sub-pixel or the third sub-pixel is configured to emit green light.

21. A display device comprising:
a plurality of first intermediate layers having quadrangular shapes and spaced apart from each other;
a plurality of second intermediate layers having quadrangular shapes and spaced apart from each other, the plurality of second intermediate layers facing the plurality of first intermediate layers, respectively; and
a plurality of third intermediate layers having quadrangular shapes and spaced apart from each other, the plurality of third intermediate layers facing the plurality of first intermediate layers, respectively, and being spaced apart from the plurality of second intermediate layers,
wherein a distance from a side of each of the first intermediate layers to each of the second intermediate layers and a distance from the side of each of the first intermediate layers to each of the third intermediate layers are different from each other, and
wherein:
the display device further comprises a spacer between the first intermediate layer and the second intermediate layer or between the first intermediate layer and the third intermediate layer; and/or
shortest distances between second intermediate layers, which face a same first intermediate layer, from among the plurality of second intermediate layers, and the same first intermediate layer, or shortest distances between third intermediate lay

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Sangshin
• Kim Jongbum

Classifications

• G03F7/70783

  Handling stress or warp of chucks, masks or workpieces, e.g. to compensate for imaging errors or considerations related to warpage of masks or workpieces due to their own weight · CPC title

• C23C14/042 Primary

  using masks · CPC title

• H01L27/3216

  Electricity · mapped topic

• H01L51/5237

  Electricity · mapped topic

• H01L51/0011

  Electricity · mapped topic