Display device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-10861909-B2
Application number	US-201916431407-A
Country	US
Kind code	B2
Filing date	Jun 4, 2019
Priority date	Aug 31, 2018
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A display device can include a substrate having an active area and a peripheral area surrounding the active area; a camera hole disposed in the active area of the substrate; a plurality of subpixels disposed in the active area while being spaced apart from the camera hole by a first distance, the plurality of subpixels including a plurality of light emitting layers, respectively; and at least one organic common layer disposed on or under the plurality of light emitting layers, in which the at least one organic common layer includes an intermittent portion corresponding to a second distance from the camera hole, the second distance being less than or equal to the first distance.

First claim

What is claimed is:

1. A display device comprising:
a substrate having an active area and a peripheral area surrounding the active area;
a camera hole disposed in the active area of the substrate;
a plurality of subpixels disposed in the active area while being spaced apart from the camera hole by a first distance, the plurality of subpixels including a plurality of light emitting layers, respectively;
at least one organic common layer disposed on or under the plurality of light emitting layer; and
a camera module including a camera lens corresponding to the camera hole, and a camera bezel for supporting the camera lens, the camera bezel overlapping with the substrate by the first distance in an area beneath the substrate,
wherein the at least one organic common layer includes an intermittent portion corresponding to a second distance from the camera hole, the second distance being less than or equal to the first distance.

2. The display device according to claim 1 , wherein the intermittent portion is a hole in the at least one organic common layer, or
wherein the intermittent portion is a barren spot in the at least one organic common layer, the barren spot being free of the at least one organic common layer.

3. The display device according to claim 1 , wherein the at least one organic common layer has an integrated structure in the active area, except for in areas corresponding to the intermittent portion and the camera hole.

4. The display device according to claim 1 , wherein the at least one organic common layer includes a first organic common layer disposed under the plurality of light emitting layers, and a second organic common layer disposed on the plurality of light emitting layers,
wherein the first organic common layer contacts a first electrode in each of the plurality of subpixels, and
wherein the second organic common layer contacts a second electrode in each of the plurality of subpixels.

5. The display device according to claim 4 , wherein the second electrode has an intermittent portion having a diameter substantially equal to a diameter of an intermittent portion of the second organic common layer.

6. The display device according to claim 4 , wherein the first organic common layer, the second organic common layer and the cathode, respectively, have the intermittent portion having a diameter substantially equal, and
wherein at the peripheral area, the second organic common layer is wider than the first organic common layer, and the cathode is wider than the second organic common layer.

7. The display device according to claim 4 , further comprising:
a buffer layer disposed on the substrate, the buffer layer having an anti-crack pattern within an area inside the second distance from the camera hole; and
a barrier layer disposed on the substrate, the barrier layer overlapping with the active area including the plurality of subpixels and the peripheral area,
wherein grooves of the anti-crack pattern are filled with the barrier layer.

8. The display device according to claim 7 , wherein the anti-crack pattern includes a plurality of grooves arranged in the buffer layer, each of the plurality of grooves having a zig-zag shape, a wavy shape, or a curvy shape in a plane.

9. The display device according to claim 7 , wherein the buffer layer includes:
a plurality of inorganic stacks disposed adjacent to the substrate; and

an active buffer layer disposed on the plural inorganic stacks, the active buffer layer being disposed over or beneath a semiconductor layer provided in the active area.

10. The display device according to claim 1 , wherein the at least one organic common layer is absent from an area surrounding the camera hole, and
wherein an edge of the at least one organic common layer is spaced apart from an edge of the camera hole by the second distance.

11. The display device according to claim 1 , further comprising:
a dam pattern disposed within an area of the second distance from the camera hole, the dam pattern being spaced apart from the camera hole and the at least one organic common layer.

12. The display device according to claim 11 , wherein the plurality of subpixels are divided from one another by banks, respectively, and the dam pattern includes a same material as the banks.

13. The display device according to claim 1 , further comprising:
a buffer layer disposed on the substrate,
a barrier layer over the substrate, the barrier layer overlapping with the active area including the plurality of subpixels and the peripheral area,
wherein the barrier layer contacts the buffer layer within an area of the second distance from the camera hole.

14. The display device according to claim 13 , wherein the barrier layer includes at least one organic layer and at least one inorganic layer.

15. The display device according to claim 14 , wherein the camera hole contacts only the at least one inorganic layer among the at least one organic layer and the at least one inorganic layer of the barrier layer.

16. The display device according to claim 1 , wherein the substrate is a flexible substrate.

17. The display device according to claim 1 , wherein the at least one organic common layer includes material having light absorbance within a wavelength range.

18. The display device according to claim 1 , wherein the camera hole is positioned adjacent to one corner of the active area having a rectangular shape.

19. A display device comprising:
a substrate having an active area including a plurality of subpixels and a peripheral area surrounding the active area, the peripheral area being free of subpixels;
a buffer layer disposed on the substrate;
an organic common layer disposed in the plurality of subpixels;
a camera hole disposed in the active area of the substrate;
a barrier layer disposed on the plurality of subpixels, the barrier layer including:
a first inorganic barrier layer disposed on the plurality of subpixels,
a second inorganic barrier layer disposed on the first inorganic barrier layer, and
an organic barrier layer disposed between the first and second inorganic barrier layers;

an intermittent portion in which the organic common layer is not formed on the buffer layer, corresponding to a predetermined distance from an edge of the camera hole; and
a camera module including a camera lens corresponding to the camera hole, and a camera bezel for supporting the camera lens, the camera bezel overlapping with the substrate by a distance greater than or equal to the predetermined distance in an area beneath the substrate,
wherein the first and second inorganic barrier layers extend to the edge of the camera hole, and the first inorganic barrier layer contacts the buffer layer within the intermittent portion, and
wherein the organic barrier layer is spaced apart from the camera hole.

20. The display device according to claim 19 , wherein the organic common layer has a hole at a region including the camera hole and the intermittent portion is a hole.

21. The display device according to claim 19 , further comprising:
an anti-crack pattern disposed in the intermittent portion,
wherein grooves of the anti-crack pattern are filled with the first inorganic barrier layer.

Assignees

• Lg Display Co Ltd

Inventors

• Park Jin-Ho

Classifications

• H10K59/131

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

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K59/8731 Primary

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K59/60 Primary

  OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes · CPC title

• H01L27/3211

  Electricity · mapped topic