IP Library › Granted Patent US 8,711,134
Granted Patent B2
US 8,711,134 · App. 13/070,188 · Granted Apr 29, 2014

Organic elelectroluminescent display

Inventors: Yujiro Hara (Kanagawa-ken, JP); Keiji Sugi (Kanagawa-ken, JP); Nobuyoshi Saito (Kanagawa-ken, JP); Tomio Ono (Kanagawa-ken, JP); Akio Amano (Tokyo, JP); Yukitami Mizuno (Tokyo, JP)
Assignee: Kabushiki Kaisha Toshiba
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,711,134
App. No.
13/070,188
Granted
Apr 29, 2014
Kind
B2
Abstract

According to one embodiment, an organic EL display includes a substrate and a pixel. The pixel is disposed on the substrate and includes a first color displaying portion and a second color displaying portion. The first color displaying portion has a first organic light emitting layer. The second color displaying portion has a second organic light emitting layer having an emission spectrum different from an emission spectrum of the first organic light emitting layer. The first color displaying portion has two sub-pixels. One of the two sub-pixels has a color filter.

Claims (7)

1. An organic electroluminescent display comprising:

a substrate; and

a pixel disposed on the substrate and including a first color displaying portion, a second color displaying portion, and a third color displaying portion, the first color displaying portion having a first organic light emitting layer, the second color displaying portion having a second organic light emitting layer having an emission spectrum different from an emission spectrum of the first organic light emitting layer, the third color displaying portion having a third organic light emitting layer having an emission spectrum different from the emission spectrum of the first organic light emitting layer and the emission spectrum of the second light emitting layer,

wherein each of the first color displaying portion, the second color displaying portion, and the third color displaying portion has a first sub-pixel provided with a color filter and a second sub-pixel provided with no color filter, and

wherein in the first color displaying portion, the second color displaying portion, and the third color displaying portion, a color gamut reproduced by said three first sub-pixels, each provided with said color filter, is larger than a color gamut reproduced by said three second sub-pixels, each provided with no color filter.

2. The organic electroluminescent display according to claim 1 , wherein the color filter transmits light in a wavelength range narrower than a wavelength range of a light spectrum of a light emitting layer provided in the same sub-pixel provided with the color filter.

3. The organic electroluminescent display according to claim 1 , wherein the first color displaying portion, the second color displaying portion and the third color displaying portion are one of a red-displaying portion, a green-displaying portion and a blue-displaying portion, respectively.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2011
From: HARA, YUJIRO; SUGI, KEIJI; SAITO, NOBUYOSHI; ONO, TOMIO; AMANO, AKIO; MIZUNO, YUKITAMI
To: KABUSHIKI KAISHA TOSHIBA
Reel/Frame 026013/0106 →
Priority Claims (1)
JP 2010-214423 · Sep 24, 2010 · national
Continuity (1)
Related Publication 20120075278A1 · Mar 29, 2012