Organic electronic device with hole injection

Details Organic electronic device with hole injection Organic electronic device with hole injection

2004-05-11

2009-06-23

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000, C428S690000

Reexamination Certificate

active

07550915

ABSTRACT:
In a first embodiment of the present invention, in order to increase the number of holes injected into the emissive layer, an intermixed layer is formed from the intermixing of the hole transport layer (“HTL”) and the emissive layer. The intermixed layer is between the HTL and the emissive layer of the OLED device. Alternatively, in a second embodiment of the present invention, in order to increase the number of holes injected into the emissive layer, a separate interlayer is incorporated within the OLED device. The interlayer is comprised of a hole transport material in which one of its components is at least partially replaced with one of the components of the emissive layer that is responsible for hole injection and transport. The separate interlayer is between the anode and the emissive layer of the OLED device. One or more intermediate layers may be present between the interlayer and the anode such as, for example, a HTL may be present between those two layers.

REFERENCES:
patent: 5529853 (1996-06-01), Hamada et al.
patent: 5540999 (1996-07-01), Yamamoto et al.
patent: 5965281 (1999-10-01), Cao
patent: 6361886 (2002-03-01), Shi
patent: 6573651 (2003-06-01), Adachi
patent: 6580094 (2003-06-01), Yamazaki
patent: 6656608 (2003-12-01), Kita et al.
patent: 6687266 (2004-02-01), Ma
patent: 6692820 (2004-02-01), Forrest
patent: 6831406 (2004-12-01), Fukuyama et al.
patent: 6991880 (2006-01-01), Tong et al.
patent: 7045952 (2006-05-01), Lu
patent: 2003/0010959 (2003-01-01), Lee et al.
US 6,689,280, 02/2004, Ogino (withdrawn)
J.L. Bredas et al., “Conjugated Polymers”, Kluwer Academic Publishers, Dordrecht, The Netherlands, 1991.

Affiliated with

Also associated with

Rating

Organic electronic device with hole injection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organic electronic device with hole injection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic electronic device with hole injection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4131110