Organic light emitting display devices and methods of manufacturing organic light emitting display devices

Patent metadata

Field	Value
Publication number	US-2016013260-A1
Application number	US-201414560441-A
Country	US
Kind code	A1
Filing date	Dec 4, 2014
Priority date	Jul 14, 2014
Publication date	Jan 14, 2016
Grant date	—

Abstract

An organic light emitting display device includes a substrate including a plurality of pixel regions and a plurality of transparent regions, thin film transistors disposed in the pixel regions, an insulation layer disposed on the thin film transistors, first electrodes electrically contacting the thin film transistors, a pixel defining layer including a black material disposed on the first electrodes, organic light emitting structures disposed on the pixel defining layer, and a second electrode disposed on the organic light emitting structures. The pixel defining layer may define an asymmetrical configuration of adjacent transparent regions disposed on opposing sides of corresponding pixel regions.

First claim

What is claimed is:

1 . An organic light emitting display device comprising:
a substrate comprising pixel regions and transparent regions; thin film transistors disposed in the pixel regions; an insulation layer disposed on the thin film transistors; first electrodes electrically connected to the thin film transistors; a pixel defining layer comprising a black material, disposed on the first electrodes, the pixel defining layer at least partially defining the transparent regions, such that adjacent transparent regions disposed on opposing sides of corresponding pixel regions have an asymmetrical configuration; organic light emitting structures disposed on the pixel defining layer; and a second electrode disposed on the organic light emitting structures.

2 . The organic light emitting display device of claim 1 , wherein each of the thin film transistors comprises:
an active pattern disposed on the substrate; a gate insulation layer covering the active pattern; a gate electrode disposed on the gate insulation layer; an insulating interlayer covering the gate electrode; and a source electrode and a drain electrode that extend through the gate insulation layer and the insulating interlayer to contact the active pattern.

3 . The organic light emitting display device of claim 2 , further comprising openings extending through the gate insulation layer, the insulating interlayer, and the insulation layer, the openings partially exposing the transparent regions.

4 . The organic light emitting display device of claim 3 , wherein the pixel defining layer extends onto sidewalls of the openings, such that adjacent transparent regions are at least partially defined by the pixel defining layer.

5 . The organic light emitting display device of claim 4 , wherein the surfaces areas of the adjacent transparent regions are determined by the portions of the pixel defining layer disposed on the sidewalls of the openings.

6 . The organic light emitting display device of claim 5 , wherein the adjacent transparent regions have different widths or different lengths, respectively.

7 . The organic light emitting display device of claim 1 , wherein the black material comprises at least one selected from the group consisting of carbon black, phenylene black, aniline black, cyanine black, nigrosine acid black, and a black resin.

8 . The organic light emitting display device of claim 1 , further comprising a light blocking member disposed in the pixel regions.

9 . The organic light emitting display device of claim 1 , wherein:
the insulation layer comprises a black material; and the insulation layer at least partially defines the asymmetrical configuration of the adjacent transparent regions.

10 . An organic light emitting display device comprising:
a substrate comprising pixel regions and transparent regions; a black matrix comprising a black material disposed in the pixel regions, the black matrix at least partially defining the transparent regions, such that adjacent transparent regions disposed on opposing sides of corresponding pixel regions have an asymmetrical configuration; thin film transistors disposed on the black matrix; an insulation layer disposed on the thin film transistors; first electrodes electrically connected to the thin film transistors; a pixel defining layer disposed on the first electrodes; organic light emitting structures disposed on the pixel defining layer; and a second electrode disposed on the organic light emitting structures.

11 . The organic light emitting display device of claim 10 , wherein each of the thin film transistors comprises:
an active pattern disposed on the substrate; a gate insulation layer covering the active pattern; a gate electrode disposed on the gate insulation layer; an insulating interlayer covering the gate electrode; and a source electrode and a drain electrode extend through the gate insulation layer and the insulating interlayer to contact the active pattern.

12 . The organic light emitting display device of claim 11 , further comprising openings extending through the gate insulation layer, the insulating interlayer, and the insulation layer, the openings partially exposing the transparent regions.

13 . The organic light emitting display device of claim 12 , wherein the black matrix at least partially defines the shapes of the transparent regions.

14 . The organic light emitting display device of claim 13 , wherein the adjacent the transparent regions have different surface areas.

15 . The organic light emitting display device of claim 14 , wherein the adjacent transparent regions have different widths or different lengths.

16 . A method of manufacturing an organic light emitting display device, comprising:
forming a substrate comprising pixel regions and transparent regions; forming thin film transistors in the pixel regions; forming an insulation layer on the thin film transistors; forming first electrodes that are electrically connected to the thin film transistors; forming a pixel defining layer on the first electrodes using a black material, the pixel defining layer at least partially defining the transparent regions, such that adjacent transparent regions on opposing sides of corresponding pixel regions have an asymmetrical configuration; forming organic light emitting structures on the pixel defining layer; and forming a second electrode on the organic light emitting structures.

17 . The method of claim 16 , wherein forming the thin film transistors comprises:
forming an active pattern on the substrate; forming a gate insulation layer on the active pattern; forming a gate electrode on the gate insulation layer; forming an insulating interlayer on the gate electrode; and forming a source electrode and a drain electrode the contact the active pattern through the gate insulation layer and the insulating interlayer.

18 . The method of claim 16 , further comprising:
forming openings through the gate insulation layer, the insulating interlayer, and the insulation layer, the openings partially exposing the transparent regions; and forming a light blocking member in the pixel regions.

19 . The method of claim 16 , wherein:
the insulation layer comprises a black material; and the insulation layer at least partially defines the asymmetrical configuration of the adjacent transparent regions.

20 . A method of manufacturing an organic light emitting display device comprising:
forming a substrate comprising pixel regions and transparent regions; forming a black matrix in the pixel regions using a black material, the black matrix at least partially defining the transparent regions, such that adjacent transparent regions disposed on opposing sides of corresponding pixel regions have an asymmetrical configuration; forming thin film transistors on the black matrix; forming an insulation layer on the thin film transistors; forming first electrodes that electrically contact the thin film transistors; forming a pixel defining layer on the first electrodes; forming organic light emitting structures on the pixel defining layer; and forming a second electrode disposed on the organic light emitting structures.

Assignees

• Samsung Display Co Ltd

Inventors

• Ahn Ki-Wan
• Park Sang-Ho
• Jang Yong-Jae

Classifications

• H01L51/56

  Electricity · mapped topic

• H01L27/3272 Primary

  Electricity · mapped topic

• H01L27/3246

  Electricity · mapped topic

• H10K59/126 Primary

  Shielding, e.g. light-blocking means over the TFTs · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title