Light emitting display device including pixel electrode opening extending parallel to and overlapping data line

Patent metadata

Field	Value
Publication number	US-12538669-B2
Application number	US-202217858741-A
Country	US
Kind code	B2
Filing date	Jul 6, 2022
Priority date	Nov 15, 2021
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A light emitting display device is disclosed that includes a substrate, a first insulating layer, a data line, a second insulating layer, a pixel electrode, and an emission layer. The first insulating layer is disposed on the substrate. The data line is disposed on the first insulating layer and transmits a data voltage. The second insulating layer is disposed on the data line. The pixel electrode is disposed on the second insulating layer. The emission layer is disposed on the pixel electrode. The pixel electrode includes at least one first opening extending in parallel to the data line and overlapping the data line.

First claim

What is claimed is:

1 . A light emitting display device comprising:
a substrate; a first insulating layer disposed on the substrate; a data line disposed on the first insulating layer and transmitting a data voltage; a second insulating layer disposed on the data line; a pixel electrode disposed on the second insulating layer; and an emission layer disposed on the pixel electrode, wherein the pixel electrode includes at least one first opening extending in parallel to the data line and overlapping the data line.

2 . The light emitting display device of claim 1 , wherein
the data line traverses the pixel electrode.

3 . The light emitting display device of claim 1 , wherein
the emission layer includes portions divided with the at least one first opening therebetween.

4 . The light emitting display device of claim 1 , further comprising
a pixel defining layer disposed on the second insulating layer and having an opening overlapping the pixel electrode, wherein the opening includes portions spaced with the at least one first opening therebetween.

5 . The light emitting display device of claim 1 , wherein
the pixel electrode further includes a second opening extending in a direction crossing an extending direction of the at least one first opening.

6 . The light emitting display device of claim 5 , wherein
the first opening is connected to the second opening.

7 . The light emitting display device of claim 5 , wherein
the emission layer includes portions spaced with the second opening therebetween.

8 . The light emitting display device of claim 1 , wherein
the at least one first opening includes a plurality of first openings connected to each other.

9 . The light emitting display device of claim 1 , wherein
the at least one first opening includes a plurality of first openings separated from each other.

10 . The light emitting display device of claim 1 , further comprising
a first pixel and a second pixel disposed in a direction in which the at least one first opening extends, and a third pixel disposed near the first pixel and the second pixel in a direction crossing the direction in which the at least one first opening extends, wherein the pixel electrode is a pixel electrode of the third pixel.

11 . The light emitting display device of claim 10 , wherein
the first pixel, the second pixel, and the third pixel respectively display red, green, and blue, and a region of the third pixel is greater than a region of each of the first pixel and the second pixel.

12 . The light emitting display device of claim 1 , further comprising
a first pixel and a second pixel disposed in a direction in which the at least one first opening extends, and a third pixel disposed near the first pixel and the second pixel in a direction crossing the direction in which the at least one first opening extends, wherein the pixel electrode is a pixel electrode of the first pixel or the second pixel.

13 . An electronic device comprising a light emitting display device, the light emitting display device comprising:
a first pixel, a second pixel, and a third pixel displaying different colors and respectively including a first pixel electrode, a second pixel electrode, and a third pixel electrode, wherein the third pixel includes an emission layer disposed on the third pixel electrode; and a first data line, a second data line, and a third data line for transmitting a data voltage to the first pixel, the second pixel, and the third pixel, respectively, wherein, in a top plan view, the third data line traverses the third pixel electrode, and in the top plan view, the third pixel electrode includes a first opening overlapping the third data line.

14 . The electronic device of claim 13 , wherein
the first opening extends in parallel to the third data line, and a width of the first opening is greater than a width of the third data line.

15 . The electronic device of claim 13 , wherein
the emission layer includes portions disposed on a first side and a second side of the first opening and spaced from each other.

16 . The electronic device of claim 13 , wherein
the third pixel electrode further includes a second opening extending in a direction crossing an extending direction of the first opening.

17 . The electronic device of claim 16 , wherein
the first opening is connected to the second opening.

18 . The electronic device of claim 16 , wherein
the emission layer includes portions disposed on a first side and a second side of the second opening and spaced from each other.

19 . The electronic device of claim 13 , wherein
the first pixel, the second pixel, and the third pixel respectively display a red color, a green color, and a blue color, and a region of the third pixel is greater than a region of each of the first pixel and the second pixel.

20 . The electronic device of claim 13 , further comprising:
a driving voltage line traversing the third pixel electrode to extend in a same direction as a direction in which the third data line extends, and transmitting a driving voltage to the third pixel.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Jun Won
• Kim Jae Won

Classifications

• H10K59/352

  the areas of the RGB subpixels being different · CPC title

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title

• H10K59/131 Primary

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10H20/813

  having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies · CPC title