Organic light-emitting display apparatus

Patent metadata

Field	Value
Publication number	US-2020365665-A1
Application number	US-202016827994-A
Country	US
Kind code	A1
Filing date	Mar 24, 2020
Priority date	May 16, 2019
Publication date	Nov 19, 2020
Grant date	—

Abstract

An organic light-emitting display apparatus in which a plurality of pixels are arranged in a first direction and a second direction crossing the first direction includes: an organic light-emitting device disposed on a substrate, wherein the organic light-emitting device is included in each of the plurality of pixels; a pixel-defining film covering edges of a pixel electrode of the organic light-emitting device and having an opening exposing a portion of the pixel electrode to define an emission region; and a conductive layer between the substrate and the organic light-emitting device. The conductive layer includes first extension portions extending in the first direction and second extension portions extending in the second direction. The emission region of each of the plurality of pixels overlaps one of cross portions where the first extension portions and the second extension portions cross each other.

First claim

What is claimed is:

1 . An organic light-emitting display apparatus in which a plurality of pixels are arranged in a first direction and a second direction crossing the first direction, comprising:
an organic light-emitting device disposed on a substrate, wherein the organic light-emitting device is comprised in each of the plurality of pixels; a pixel-defining film covering edges of a pixel electrode of the organic light-emitting device and having an opening configured to expose a portion of the pixel electrode to define an emission region; and a conductive layer disposed between the substrate and the organic light-emitting device, wherein the conductive layer comprises first extension portions extending in the first direction and second extension portions extending in the second direction, and wherein the emission region of each of the plurality of pixels overlaps one of cross portions where the first extension portions and the second extension portions cross each other.

2 . The organic light-emitting display apparatus of claim 1 , wherein:
the plurality of pixels comprise a first pixel, a second pixel, and a third pixel emitting different colors of light from one another, and emission regions of the first pixel, emission regions of the second pixel, and emission regions of the third pixel each overlap the cross portions.

3 . The organic light-emitting display apparatus of claim 2 , wherein:
the first pixel and the second pixel are alternately arranged in the first direction and the second direction, and the third pixel is disposed at a central point of a virtual quadrilateral having a central point of the first pixel and a central point of the second pixel as vertices.

4 . The organic light-emitting display apparatus of claim 3 , further comprising:
a thin film transistor disposed on the substrate; and a first via layer and a second via layer stacked between the thin film transistor and the organic light-emitting device, wherein: the conductive layer is disposed between the first via layer and the second via layer, the second extension portions each comprise a third wire portion and a fourth wire portion alternating with the third wire portion, the third wire portion comprises first cross portions crossing the first extension portions, and wherein the emission regions of the first pixel or the emission regions of the second pixel each overlap one of the first cross portions.

5 . The organic light-emitting display apparatus of claim 4 , wherein
central points of the emission regions of the first pixel or central points of the emission regions of the second pixel each overlap one of the first cross portions.

6 . The organic light-emitting display apparatus of claim 3 , further comprising:
a thin film transistor over the substrate; and a first via layer and a second via layer stacked between the thin film transistor and the organic light-emitting device, wherein: the conductive layer is disposed between the first via layer and the second via layer, the second extension portions each comprise a third wire portion and a fourth wire portion alternating with the third wire portion, the fourth wire portion comprises second cross portions crossing the first extension portions, and the emission regions of the third pixel each overlap one of the second cross portions.

7 . The organic light-emitting display apparatus of claim 6 , wherein
central points of the emission regions of the third pixel respectively overlap the second cross portions.

8 . The organic light-emitting display apparatus of claim 2 , wherein:
the first extension portions comprise first wire portions and second wire portions alternating with the first wire portions, the emission regions of the first pixel or the emission regions of the second pixel each overlap one of the first wire portions, the emission regions of the third pixel each overlap one of the second wire portions, and the second wire portions each comprise a first sub-portion and a second sub-portion spaced apart from each other in the first direction.

9 . The organic light-emitting display apparatus of claim 1 , wherein
the conductive layer comprises a wire for transmitting a driving voltage to the plurality of pixels.

10 . The organic light-emitting display apparatus of claim 1 , wherein
the first direction and the second direction are perpendicular to each other.

11 . The organic light-emitting display apparatus of claim 1 , wherein
a central point of the emission region of each of the plurality of pixels overlaps one of the cross portions.

12 . The organic light-emitting display apparatus of claim 11 , wherein:
the plurality of pixels comprise a first pixel, a second pixel, and a third pixel emitting different colors of light from one another, and a central point of an emission region of the first pixel, a central point of an emission region of the second pixel, and a central point of an emission region of the third pixel each overlap one of the cross portions.

13 . The organic light-emitting display apparatus of claim 1 , wherein
the plurality of pixels are arranged in a pentile matrix structure.

14 . The organic light-emitting display apparatus of claim 1 , further comprising:
a first via layer and a second via layer disposed between the substrate and the pixel electrode; and a lower conductive layer disposed between the substrate and the first via layer, wherein: the conductive layer is disposed between the first via layer and the second via layer, and the conductive layer is configured to contact the lower conductive layer via a contact hole.

15 . An organic light-emitting display apparatus in which a plurality of pixels are arranged in a first direction and a second direction crossing the first direction, comprising:
an organic light-emitting device disposed on a substrate, wherein the organic light-emitting device is comprised in each of the plurality of pixels; a pixel-defining film covering edges of a pixel electrode of the organic light-emitting device and having an opening configured to expose a portion of the pixel electrode to define an emission region; a first via layer and a second via layer disposed between the substrate and the pixel electrode; and a conductive layer disposed between the first via layer and the second via layer, wherein the conductive layer has a mesh structure comprising mesh holes formed by first extension portions and second extension portions crossing each other, wherein emission regions of the plurality of pixels comprise overlap portions with respect to a first corner portion of the mesh holes and a second corner portion facing the first corner portion, respectively.

16 . The organic light-emitting display apparatus of claim 15 , wherein
central points of the emission regions of the plurality of pixels overlap the conductive layer.

17 . The organic light-emitting display apparatus of claim 15 , wherein
the plurality of pixels comprise a first pixel, a second pixel, and a third pixel emitting different colors of light from one another.

18 . The organic light-emitting display apparatus of claim 15 , wherein
at least one first mesh hole and a second mesh hole adjacent to the first mesh hole from among the mesh holes are connected to each other in the second direction.

19 . The organic light-emitting display apparatus of claim 15 , further comprising:
a lower conductive layer disposed between the substrate and the first via layer, wherein: the conduct

Assignees

• Samsung Display Co Ltd

Inventors

• CHOI Chulhyun

Classifications

• H10K59/1315

  comprising structures specially adapted for lowering the resistance · CPC title

• H10K59/124

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K59/123

  Connection of the pixel electrodes to the thin film transistors [TFT] · CPC title

• H10K59/122

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

• H10K59/1213

  the pixel elements being TFTs · CPC title