Tiling display device

Patent metadata

Field	Value
Publication number	US-2025201779-A1
Application number	US-202418936138-A
Country	US
Kind code	A1
Filing date	Nov 4, 2024
Priority date	Dec 18, 2023
Publication date	Jun 19, 2025
Grant date	—

Abstract

A tiling display device is disclosed. The tiling display device according to the specification includes a plurality of pixels disposed on a display panel, a first pixel area including a first pixel and second pixel neighboring to each other, and a second pixel area including the first pixel and a third pixel neighboring to each other. The sum of brightness for each color of any one of two pixels selected from the group consisting of the first pixel, the second pixel, and the third pixel is larger than the sum of brightness for each color of each of the pixels between which a distance is relatively smaller than a distance between the two selected pixels. According to the tiling display device according to the specification, it is possible to improve image quality and visibility and prevent the degradation of color reproducibility.

First claim

1 . A tiling display device comprising:
a plurality of pixels disposed on a display panel; a first pixel area including a first pixel and a second pixel neighboring to each other; and a second pixel area including the first pixel and a third pixel neighboring to each other, wherein in operation, a brightness of a first color of the first pixel area is same as a brightness of the first color of the second pixel area, and a sum of brightness for each color of any one of two pixels selected from a group including the first pixel, the second pixel, and the third pixel is larger than a sum of brightness for each color of each of two pixels between which a distance is smaller than a distance between the two pixels selected from the group.

2 . The tiling display device of claim 1 , further comprising:
a first pixel block including the first pixel configured to emit light in a wavelength band of the first color; a second pixel block including the second pixel spaced apart from the first pixel in a first direction and configured to emit light in the wavelength band of the first color; and a third pixel block including the third pixel spaced apart from the first pixel in a second direction intersecting the first direction and configured to emit light in the wavelength band of the first color.

3 . The tiling display device of claim 2 , wherein a distance between the neighboring first and second pixels is larger than a distance between neighboring pixels in the first pixel block or in the second pixel block, and
a distance between the neighboring first and third pixels is larger than a distance between neighboring pixels in the first pixel block or in the third pixel block.

4 . The tiling display device of claim 3 , wherein the first pixel includes a 1-1 sub-pixel and a 1-2 sub-pixel configured to emit light in the wavelength band of the first color,
the second pixel includes a 2-1 sub-pixel and a 2-2 sub-pixel configured to emit light in the wavelength band of the first color, the third pixel includes a 3-1 sub-pixel and a 3-2 sub-pixel configured to emit light in the wavelength band of the first color, and the first color is one of red, green, or blue.

5 . The tiling display device of claim 4 , wherein a light amount ratio for the first color of the sub-pixels included in any one of the two pixels selected from the group differs from a light amount ratio for the first color of the sub-pixels included in the one of the two pixels between which the distance is smaller than the distance between the two selected pixels.

6 . A tiling display device comprising:
a plurality of pixels disposed on a display panel; a first pixel area including a first pixel and a second pixel neighboring to each other; and a second pixel area including the first pixel and a third pixel neighboring to each other, wherein a brightness of a first color of the first pixel area is same as a brightness of the first color of the second pixel area, and a sum of brightness for each color of any one of two pixels selected from a group including the first pixel, the second pixel, and the third pixel is smaller than a sum of brightness for each color of each of two pixels between which a distance is larger than a distance between the two pixels selected from the group.

7 . The tiling display device of claim 6 , further comprising:
a first pixel block including the first pixel configured to emit light in a wavelength band of the first color; a second pixel block including the second pixel spaced apart from the first pixel in a first direction and configured to emit light in the wavelength band of the first color; and a third pixel block including the third pixel spaced apart from the first pixel in a second direction intersecting the first direction and configured to emit light in the wavelength band of the first color.

8 . The tiling display device of claim 7 , wherein a distance between the neighboring first and second pixels is smaller than a distance between neighboring pixels in the first pixel block or in the second pixel block, and
a distance between the neighboring first and third pixels is smaller than a distance between neighboring pixels in the first pixel block or in the third pixel block.

9 . The tiling display device of claim 8 , wherein the first pixel includes a 1-1 sub-pixel and a 1-2 sub-pixel configured to emit light in the wavelength band of the first color,
the second pixel includes a 2-1 sub-pixel and a 2-2 sub-pixel configured to emit light in the wavelength band of the first color, the third pixel includes a 3-1 sub-pixel and a 3-2 sub-pixel configured to emit light in the wavelength band of the first color, and the first color is one of red, green, or blue.

10 . The tiling display device of claim 9 , wherein a light amount ratio for the first color of the sub-pixels included in any one of the two pixels selected from the group is same as a light amount ratio for the first color of the sub-pixels included in the one of the two pixels between which the distance is larger than the distance between the two pixels selected from the group.

11 . A tiling display device comprising:
a first pixel including a 1-1 sub-pixel and a 1-2 sub-pixel configured to emit light in a same wavelength band of a first color; and a second pixel spaced apart from the first pixel and including a 2-1 sub-pixel and a 2-2 sub-pixel that configured to light in a same wavelength band of the first color, wherein in operation, a first pattern, in which the 1-1 sub-pixel and the 2-2 sub-pixel are turned on and the 1-2 sub-pixel and the 2-1 sub-pixel are turned off, and a second pattern, in which the 1-1 sub-pixel and the 2-2 sub-pixel are turned off and the 1-2 sub-pixel and the 2-1 sub-pixel are turned on, appear alternately in time.

12 . The tiling display device of claim 11 , wherein, the 2-1 sub-pixel is spaced apart from the 1-1 sub-pixel in a first direction, and the 2-2 sub-pixel is spaced apart from the 1-2 sub-pixel in the first direction.

13 . The tiling display device of claim 11 , further comprising:
a first pixel block including the first pixel; and a second pixel block including the second pixel spaced apart from the first pixel in a first direction and neighboring to the first pixel, wherein the first pattern is a pattern in which a brightness of the first color of the first pixel and a brightness of the first color of the second pixel are same, a light amount ratio of the 1-1 sub-pixel and the 1-2 sub-pixel is 1:0, and a light amount ratio of the 2-1 sub-pixel and the 2-2 sub-pixel is 0:1, and the second pattern is a pattern in which the brightness of the first color of the first pixel and the brightness of the first color of the second pixel are the same, the light amount ratio of the 1-1 sub-pixel and the 1-2 sub-pixel is 0:1, and the light amount ratio of the 2-1 sub-pixel and the 2-2 sub-pixel is 1:0.

14 . A tiling display device comprising:
a first pixel including a 1-1 sub-pixel and a 1-2 sub-pixel configured to emit light in a wavelength band of a same color; and a second pixel spaced apart from the first pixel and including a 2-1 sub-pixel and a 2-2 sub-pixel configured to emit light in a wavelength band of the same color, wherein in operation a brightness of the first color of the first pixel is same as a brightness of the first color of the second pixel, and the 1-1 sub-pixel, the 1-2 sub-pixel, and the 2-1 sub-pixel are turned on, and the 2-2 sub-pixel is turned off.

15 . The tiling display device of claim 14 , wherein in operation, the light amount ratio of the 1-1 sub-pixel and the 1-2 s

Assignees

• Lg Display Co Ltd

Inventors

• Kim Young Tae
• Yang Chang Mo

Classifications

• H10W90/00 Primary

  Package configurations · CPC title

• G09G2320/0666

  for control of colour parameters, e.g. colour temperature · CPC title

• G09G2320/0233

  Improving the luminance or brightness uniformity across the screen · CPC title

• G09G3/2074

  using sub-pixels · CPC title

• G09G3/2003

  Display of colours (specific for liquid crystal displays G09G3/3607) · CPC title