Light emitting device

Details Light emitting device Light emitting device

2007-12-11

2007-12-11

Pert, Evan (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

Organic semiconductor material

C257S072000, C257S059000

Reexamination Certificate

active

11045873

ABSTRACT:
An objective is to increase the reliability of a light emitting device structured by combining TFTs and organic light emitting elements. A TFT (1201) and an organic light emitting element (1202) are formed on the same substrate (1203) as structuring elements of a light emitting device (1200). A first insulating film (1205) which functions as a blocking layer is formed on the substrate (1203) side of the TFT (1201), and a second insulating film (1206) is formed on the opposite upper layer side as a protective film. In addition, a third insulating film (1207) which functions as a barrier film is formed on the lower layer side of the organic light emitting element (1202). The third insulating film (1207) is formed by an inorganic insulating film such as a silicon nitride film, a silicon oxynitride film, an aluminum nitride film, an aluminum oxide film, or an aluminum oxynitride film. A fourth insulating film (1208) and a partitioning layer (1209) formed on the upper layer side of the organic light emitting element (1202) are formed using similar inorganic insulating films.

REFERENCES:
patent: 5550066 (1996-08-01), Tang et al.
patent: 5952708 (1999-09-01), Yamazaki
patent: 5990542 (1999-11-01), Yamazaki
patent: 6169293 (2001-01-01), Yamazaki
patent: 6239470 (2001-05-01), Yamazaki
patent: 6441468 (2002-08-01), Yamazaki
patent: 6445059 (2002-09-01), Yamazaki
patent: 6646284 (2003-11-01), Yamazaki et al.
patent: 0 717 439 (1996-06-01), None
patent: 05-044017 (1993-02-01), None
patent: 08-241047 (1996-09-01), None
Tsutsui, T. et al, “Electroluminescence in Organic Thin Films,” Photochemical Processes in Organized Molecular Systems, 1991, pp. 437-450.
Baldo, M.A. et al, “Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices,” Nature, vol. 395, Sep. 10, 1998, p. 151-154.
Baldo, M.A. et al, “Very High-Efficiency Green Organic Light-Emitting Devices Based on Electrophosphorescence,” Applied Physics Letters, vol. 75, No. 1, Jul. 5, 1999, pp. 4-6.
Tsutsui, T. et al, “High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center,” Japanese Journal of Applied Physics, vol. 38, part 2, No. 12B, Dec. 15, 1999, pp. L1502-L1504.

Affiliated with

Also associated with

Rating

Light emitting device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3887445