# US 2013/0153940 A1 · Organic electro-luminescence display device

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- Number: US 2013/0153940 A1
- Document ID: US20130153940A1
- Status: Published application
- Kind: A1
- Application number: 13/610,498
- Filed: 2012-09-11
- Published: 2013-06-20
- Earliest claimed: 2011-12-16
- Assignees: Samsung Display Co., Ltd.
- Inventors: Naotoshi Suganuma; Ichinori Takada
- Web page: https://patentgrep.com/patent/US20130153940A1

## CPC

- H10K 59/50: OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
- H10K 59/8791: {Arrangements for improving contrast, e.g. preventing reflection of ambient light}
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES

## Abstract

An organic light emitting diode (OLED) display is disclosed. The display has high contrast and displays good black color by removing or decreasing influence of ambient light. The display includes an organic electro-luminescence emission layer and a plurality of pixels respectively including an active lighting layer disposed on the organic electro-luminescence emission layer. In the pixels, when the organic electro-luminescence emission layer emits light, light transmittance of the active lighting layer is decreased.

## Claims

### Claim 1

An organic light emitting diode (OLED) display comprising:
an organic electro-luminescence emission layer; and
a plurality of pixels respectively including an active lighting layer disposed on the organic electro-luminescence emission layer.

### Claim 2 (depends on 1)

The organic light emitting diode (OLED) display of claim 1, wherein,
in a plurality of pixels, when the organic electro-luminescence emission layer emits light, light transmittance of the active lighting layer is decreased.

### Claim 3 (depends on 1)

The organic light emitting diode (OLED) display of claim 1, further comprising:
a first electrode, wherein the organic electro-luminescence emission layer is formed on the first electrode;
a second electrode formed on the organic electro-luminescence emission layer, wherein the active lighting layer is formed on the second electrode; and
a third electrode formed on the active lighting layer.

### Claim 4 (depends on 1)

The organic light emitting diode (OLED) display of claim 1, further comprising:
a first electrode, wherein the organic electro-luminescence emission layer is formed on the first electrode;
a second electrode formed on the organic electro-luminescence emission layer, wherein the insulating layer is formed on the second electrode;
a third electrode formed on the insulating layer, wherein the active lighting layer is formed on the third electrode; and
a fourth electrode formed on the active lighting layer.

### Claim 5 (depends on 4)

The organic light emitting diode (OLED) display of claim 4, wherein the first electrode, the second electrode, the third electrode, and the fourth electrode can be independently controlled.

### Claim 6 (depends on 1)

The organic light emitting diode (OLED) display of claim 1, wherein the active lighting layer comprises at least one of an electrochromic layer having an electrochromic material, an electro-wetting layer having an electro-wetting material, a lighting mirror layer, and a liquid crystal layer having a liquid crystal material.