Display device

Details Display device Display device

2008-09-16

2008-09-16

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

C313S113000, C349S096000, C349S115000, C349S155000, C315S169300

Reexamination Certificate

active

11177578

ABSTRACT:
A display device of the present invention has light-emitting devices making up a plurality of pixels placed in a matrix form. In the display device of the present invention, the light-emitting devices each possesses an emissive layer and a reflective element placed on the rear surface of the emissive layer; the emissive layer possesses at the said of the front side, a polarization separator which separates the light emitted from the emissive layer into two kinds of polarized components by the reflection and the transmission, and phase plate; the emissive layer substantially maintains the sate of the polarization of the light transmitted there-through; the reflective element at least reflects the circularly polarized light impinging in the vertical direction mainly as a circularly polarized light having a reverse helicity direction; and the polarization separator has a reflectance of the wavelength range from 520 nm to 600 nm smaller than a reflectance of range not more than 540 nm.

REFERENCES:
patent: 4772885 (1988-09-01), Uehara et al.
patent: 4985898 (1991-01-01), Furuya et al.
patent: 5048933 (1991-09-01), Asano
patent: 5121234 (1992-06-01), Kucera
patent: 5737050 (1998-04-01), Takahara et al.
patent: 5748369 (1998-05-01), Yokota
patent: 5928801 (1999-07-01), Broer et al.
patent: 5999243 (1999-12-01), Kameyama et al.
patent: 6252640 (2001-06-01), Kim et al.
patent: 6300989 (2001-10-01), Iijima
patent: 6307604 (2001-10-01), Hikmet et al.
patent: 6359668 (2002-03-01), Iijima et al.
patent: 6590337 (2003-07-01), Nishikawa et al.
patent: 6667788 (2003-12-01), Maruyama et al.
patent: 6717358 (2004-04-01), Liao et al.
patent: 6833892 (2004-12-01), Kamijo
patent: 2002/0167630 (2002-11-01), Fujieda et al.
patent: 2003/0127656 (2003-07-01), Aizawa et al.
patent: 2006/0072047 (2006-04-01), Sekiguchi
patent: 97/12276 (1997-04-01), None
patent: 1 389 737 (1972-05-01), None
patent: 63-035765 (1988-02-01), None
patent: 05-098421 (1993-04-01), None
patent: 06235900 (1994-08-01), None
patent: 09-127885 (1997-05-01), None
patent: 11-045058 (1999-02-01), None
patent: 11045058 (1999-02-01), None
patent: 2000-356769 (2000-12-01), None
patent: 2001-244068 (2001-09-01), None
patent: 2001-244080 (2001-09-01), None
patent: 2001-311826 (2001-11-01), None
patent: 2001-357979 (2001-12-01), None
patent: 2002270021 (2002-09-01), None
patent: 2003-115383 (2003-04-01), None
patent: 2003186413 (2003-07-01), None
Savko, et al., “A Circular Polarizer as a Means of Improving the Visibility of Electroluminescing Objects”, The Optical Society of America, 1982 pp. 239-241.
Miyaguchi, et al., “Organic LED Full-Color Passive-Matrix Display”, Journal of the SID, 1999 pp. 221-225.
Shimoda, et al., “Multicolor Pixel Patterning of Light-Emitting Polymers by ink-Jet Printing”, Seiko Epson Corporation, 1999.
Japanese language office action for corresponding Japanese application No. 2002-181239 lists the references above.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3946032