Display device and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-2020075692-A1
Application number	US-201916431407-A
Country	US
Kind code	A1
Filing date	Jun 4, 2019
Priority date	Aug 31, 2018
Publication date	Mar 5, 2020
Grant date	—

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; and at least one organic common layer disposed on or under the plurality of light emitting layers, 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 second organic common layer overlaps with the first organic common layer in the peripheral area, and
wherein the second electrode overlaps with the second organic common layer in the peripheral area.

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 one or more grooves arranged in the buffer layer, the one or more grooves having a zig-zag shape, a wavy shape, or a curvy shape.

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 , further comprising:
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.

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

18 . A method for manufacturing a display device, the method comprising:
preparing a substrate having an active area and a peripheral area surrounding the active area; defining a camera hole formation area in the substrate; defining a plurality of subpixels in the active area of the substrate, except for in a subpixel free area surrounding the camera hole formation area, the subpixel free area being located within a first distance from the camera hole formation area; forming first electrodes at the plurality of subpixels, respectively; forming a first organic common layer on the first electrodes, the first organic common layer overlapping with at least the active area of the substrate; forming light emitting layers on the first organic common layer for the plurality of subpixels, respectively; forming a second organic common layer on the light emitting layers, the second organic common layer having an area greater than or equal to an area of the first organic common layer; forming a second electrode on the second organic common layer; removing portions of the second electrode, the second organic common layer and the first organic common layer from the subpixel free area around the camera hole formation area; forming a barrier layer on the substrate, the barrier layer overlapping with the active area and the peripheral area; and removing portions of the substrate and an upper configuration disposed on the substrate from the camera hole formation area, and creating a camera hole in the camera hole formation area.

19 . The method according to claim 18 , wherein the intermittent portion is a hole in the first and second organic common layers, or the intermittent portion is a barren spot in the first and second organic common layers, the barren spot being free of the first and second organic common layers.

20 . The method according to claim 18 , further comprising:
inserting a camera lens into the camera hole; and mounting a camera module to a bottom of the substrate in an area corresponding to the camera hole, wherein a camera bezel included in the camera module overlaps with the substrate by the first distance.

21 . 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 dispos

Assignees

• Lg Display Co Ltd

Inventors

• Park Jin-Ho

Classifications

• H01L51/5253

  Electricity · mapped topic

• H01L27/3244 Primary

  Electricity · mapped topic

• H01L27/3211

  Electricity · mapped topic

• H10K59/131

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

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title