Title:
INORGANIC-BASED COLOR CONVERSION MATRIX ELEMENT FOR ORGANIC COLOR DISPLAY DEVICES AND METHOD OF FABRICATION
Document Type and Number:
WIPO Patent Application WO2000017903
Kind Code:
A3
Abstract:
An integrated organic light emitting diode (OLED) color display device is disclosed. The OLED display device comprises at least one pixel element (10) capable of emitting visible light of varying wavelengths. Pixel element (10) may comprise: a substrate (100), an addressable two-dimensional matrix of organic light emitting diodes (120) that emits monochrome light, a color conversion matrix element (110) capable of absorbing the monochrome light and re-emitting that light at different wavelengths, and cover element (130). Color conversion matrix element (110) may further comprise at least one red color converting subelement (111), at least one green color converting subelement (112), and at least one blue color converting subelement (113). The color converting subelements (111, 112 and 113) may further comprise semiconductor nanocrystals (140) uniformly dispersed in a transparent organic binding material (150). The size distribution of the semiconductor nanocrystals (140) may be precisely controlled to define the capability for color conversion to a particular wavelength of re-emitted light. The color conversion matrix element (110) is fabricated separately from the organic light emitting diode matrix. A method for making an integrated organic light emitting diode display device comprising at least one pixel element (10) capable of emitting visible light of varying wavelengths is also disclosed.
Inventors:
SOKOLIK IGOR (US)
CAMPOS RICHARD A (US)
CAMPOS RICHARD A (US)
Application Number:
PCT/US1999/021937
Publication Date:
May 25, 2000
Filing Date:
September 22, 1999
Export Citation:
Assignee:
FED CORP (US)
SOKOLIK IGOR (US)
CAMPOS RICHARD A (US)
SOKOLIK IGOR (US)
CAMPOS RICHARD A (US)
International Classes:
H01L27/32; H01L51/52; (IPC1-7): H01J1/64; H01J1/72; H01J1/74
Foreign References:
| US5705285A | 1998-01-06 | |||
| US5537000A | 1996-07-16 |
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