Organic Light Emitting Display Device

Patent metadata

Field	Value
Publication number	US-2018090547-A1
Application number	US-201715706508-A
Country	US
Kind code	A1
Filing date	Sep 15, 2017
Priority date	Sep 29, 2016
Publication date	Mar 29, 2018
Grant date	—

Abstract

In an embodiment, an organic light emitting display device includes a first substrate, a display region, a pad portion, lines, and a moisture-transmission delay layer. The display region includes sub-pixels disposed on the first substrate. The pad portion is disposed on the first substrate and electrically connected to an external device. The lines are disposed between the pad portion and the display region and electrically connected to the external device, and transfer a signal or power to the external device. The moisture-transmission delay layer covers edges of the lines.

First claim

What is claimed is:

1 . An organic light emitting display unit comprising:
a first substrate; a display region having sub-pixels disposed on the first substrate; a pad portion disposed on the first substrate and electrically connected to an external device; a plurality of lines disposed between the pad portion and the display region, the plurality of lines electrically connected to the external device via the pad portion, and configured to transfer a signal or power to the external device; and a moisture-transmission delay layer covering edges of the plurality of lines.

2 . The organic light emitting display device of claim 1 , wherein the moisture-transmission delay layer covers a plurality of edges of each of the plurality of lines and a portion of the first substrate.

3 . The organic light emitting display device of claim 1 , wherein the moisture-transmission delay layer and a planarization layer disposed on the display region are made of a same material.

4 . The organic light emitting display device of claim 1 , further comprising:
a first planarization layer on first ones of the plurality of lines adjacent to the pad portion; and a second planarization layer on second ones of the plurality of lines adjacent to the display region, wherein the first planarization layer and the second planarization layer are spaced apart from each other.

5 . The organic light emitting display device of claim 4 , wherein the moisture-transmission delay layer is spaced apart from the first planarization layer and the second planarization layer, so that the moisture-transmission layer has a moisture-transmission delay space that delays transmission of moisture.

6 . The organic light emitting display device of claim 5 , wherein the moisture-transmission delay layer is divided into a plurality of pieces so as to have a plurality of moisture-transmission delay spaces between the pad portion and the display region.

7 . The organic light emitting display device of claim 1 , wherein the moisture-transmission delay layer is a hybrid multi-layer including an organic material and an inorganic material.

8 . The organic light emitting display device of claim 1 , wherein the moisture-transmission delay layer comprises:
a plurality of lower layers arranged in a form of islands along edges of the plurality of lines; a plurality of middle layers disposed on the plurality of lower layers and connecting the plurality of lower layers; and a plurality of upper layers disposed on the plurality of middle layers.

9 . The organic light emitting display device of claim 8 , wherein:
the plurality of lower layers and a planarization layer disposed on the display region are formed of a first material, the plurality of middle layers and a lower electrode disposed on the display region are formed of a second material, and the plurality of upper layers and a bank layer disposed on the display region are formed of a third material.

10 . The organic light emitting display device of claim 1 , wherein the plurality of lines comprises:
a high-potential power line for transferring high-potential power, supplied from the pad portion, to the display region; a low-potential power line configured for transferring low-potential power, supplied from the pad portion, to the display region, and a reference line for transferring a voltage, supplied from the pad portion, to the display region and transferring a sensing result of the display region to the pad portion.

11 . An organic light emitting display device comprising:
a first substrate; a display region having sub-pixels disposed on the first substrate; a pad portion disposed on the first substrate and electrically connected to an external device; a plurality of lines disposed between the pad portion and the display region, the plurality of lines electrically connected to the external device via the pad portion, and configured to transfer a signal or power to the external device; an insulation layer covering a portion of the plurality of lines disposed between the pad portion and the display region; and a moisture-transmission delay layer covering exposed line edges of the plurality of lines not covered by the insulation layer.

12 . The organic light emitting display device of claim 11 , wherein the insulation layer is formed to cover first ones of the plurality of lines adjacent to the pad portion and second ones of the plurality of lines adjacent to the display region.

13 . The organic light emitting display device of claim 11 , wherein the moisture-transmission delay layer covers a plurality of edges of each of the plurality of lines and a portion of the first substrate.

14 . The organic light emitting display device of claim 11 , wherein the moisture-transmission delay layer and a planarization layer disposed on the display layer are made of a same material.

Assignees

• Lg Display Co Ltd

Inventors

• Shin Sangil
• Sung Kiyoung
• Park Youngju
• Lim Sanghyun
• Jeong Sanghoon

Classifications

• G09G3/3208

  organic, e.g. using organic light-emitting diodes [OLED] · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H01L51/5253

  Electricity · mapped topic

• H01L27/3211 Primary

  Electricity · mapped topic

• H10K59/8731

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