Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2006-01-13
2010-10-05
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S503000, C313S498000, C313S499000, C257S010000, C257S548000, C257S655000, C438S020000
Reexamination Certificate
active
07808174
ABSTRACT:
A light-emitting diode (1) has a first electrode (3), a second electrode (4), a light-emitting layer (5) which comprises a matrix, and ions. A layer (6) of a cation receptor (CR) is positioned adjacent to the first electrode (3), has captured cations, and has generated immobilized cations (+). A layer (7) of an anion receptor (AR) is positioned adjacent to the second electrode (4), has captured anions, and has generated immobilized anions (−). The ion gradients provide for quick response in emission of light (L) when the diode (1) is exposed to a forward bias. A diode (1) is manufactured by first forming a laminate (2) of the above structure. The laminate (2) is exposed to a forward bias to make the ions become immobilized at respective sites (S1, S2) of the respective receptors (CR, AR).
REFERENCES:
patent: 6235414 (2001-05-01), Epstein
patent: 0439627 (1991-08-01), None
Gang Yu et al: “Polymer Light-Emitting Electrochemical Cells With Frozen P-I-N Junction At Room Temperature” Advanced Materials, Wiley VCH, Weinheim, DE, vol. 10, No. 5, 1998, pp. 385-388.
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Examination Report issued on Oct. 10, 2007 in a co-pending related EP application Serial No. 06701788.9 (Reference No. PHNL050015EP2).
Applicants' Response to Examination Report in a co-pending related EP application Serial No. 06701788.9 (Reference No. PHNL050015EP2) filed on Dec. 12, 2007.
Yu et al., Polymer light-emitting electrochemical cells with frozen p-i-n junction at room temperature, 1998, pp. 385-388, No. 5.
Gao et al., Polymer light-emitting electrochemical cells with frozen junctions, 1999, pp. 4594-4599, vol. 86, No. 8.
Wenzl et al, The influence of the phase morphology on the optoelectronic properties of light-emitting electrochemical cells, 2004, pp. 441-450.
Klink Steve
Kurt Ralph
Meijer Eduard Johannes
Meulenkamp Eric Alexander
Koninklijke Philips Electronics , N.V.
Patel Nimeshkumar D.
Stern Jacob
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