Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-9324972-B2
Application number	US-201414509883-A
Country	US
Kind code	B2
Filing date	Oct 8, 2014
Priority date	Nov 19, 2013
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

An organic light emitting display device comprises a substrate that includes a plurality of pixel regions; a conductive line arranged on the substrate; and an anti-reflective layer arranged on the conductive line, wherein the anti-reflective layer includes an intermediate layer arranged on the conductive line and a semi-transparent layer arranged on the intermediate layer, and the conductive line is electrically connected with the semi-transparent layer.

First claim

What is claimed is:

1. An organic light emitting display device comprising:
a substrate that includes a plurality of pixel regions;
a plurality of conductive lines arranged on the substrate that define peripheries of the plurality of pixel regions, the plurality of conductive lines including a gate line that delivers a gate signal to a pixel region, a data line that delivers a data signal to the pixel region, and a power line that delivers a power signal to the pixel region; and
a first anti-reflective layer arranged on the data line, the first anti-reflective layer including an intermediate layer arranged directly on the data line and a semi-transparent layer arranged on the intermediate layer of the first anti-reflective layer, and
a second anti-reflective layer arranged on the power line, the second anti-reflective layer including an intermediate layer arranged directly on the power line and a semi-transparent layer arranged on the intermediate layer of the second anti-reflective layer;
wherein the intermediate layer arranged directly on the data line or the intermediate layer arranged directly on the power line is composed of an insulating material, and a through hole is arranged in the intermediate layer arranged directly on the data line to electrically connect the data line with the semi-transparent layer included in the first anti-reflective layer that is arranged on the data line, and a through hole is arranged in the intermediate layer arranged directly on the power line to electrically connect the power line with the semi-transparent layer included in the second anti-reflective layer that is arranged on the power line.

2. The organic light emitting display device of claim 1 , wherein each pixel region of the plurality of pixel regions includes a transparent area.

3. The organic light emitting display device of claim 1 , wherein the intermediate layer formed on the data line or on the power line is a conductive material, and electrically connects the respective semi-transparent layer arranged on the intermediate layer with the data line or the power line.

4. The organic light emitting display device of claim 1 , wherein an optical path difference between a first portion of external incident light reflected from the data line or power line and a second portion of the external incident light reflected from either the semi-transparent layer arranged on the intermediate layer formed over the data line or from the semi-transparent layer arranged on the intermediate layer formed over the power line is λ/2, where λ is a wavelength of the external incident light.

5. The organic light emitting display device of claim 1 , wherein each pixel region of the plurality of pixel regions comprises a thin film transistor, and the plurality of conductive lines further include a gate electrode for each thin film transistor extended from the gate line, a source electrode for each thin film transistor extended from the data line, and a drain electrode spaced apart from the source electrode.

6. The organic light emitting display device of claim 5 , wherein the plurality of conductive lines further include an anode electrode connected with the source electrode or the drain electrode of each thin film transistor, and a cathode electrode connected with the power line.

7. The organic light emitting display device of claim 6 , further comprising an organic light emitting layer arranged between the anode electrode and the cathode electrode.

8. The organic light emitting display device of claim 1 , wherein the plurality of conductive lines further include a conductive portion connected with any one of the gate line, the data line and the power line.

9. The organic light emitting display device of claim 1 , wherein a third anti-reflective layer is arranged on the gate line, the third anti-reflective layer formed over the gate line comprising a respective intermediate layer formed directly over the gate line and a respective semi-transparent layer formed over the respective intermediate layer, and the gate line is electrically connected with the respective semi-transparent layer included in the third anti-reflective layer that is arranged on the gate line.

Assignees

• Lg Display Co Ltd

Inventors

• Yang Hee Seok
• Lee Jong Kyun

Classifications

• H10K59/131

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

• H10K59/121 Primary

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

• H10K59/8791 Primary

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/12

  Active-matrix OLED [AMOLED] displays · CPC title

• H10K50/865

  comprising light absorbing layers, e.g. light-blocking layers · CPC title