1
Richard Henry Friend, Andrew Bruce Holmes, Donal Donat Conor Bradley, Paul Leslie Burn, Arno Kraft, Adam Richard Brown, Jeremy Henley Burroughes, Neil Clement Greenham: Electroluminescent devices. Cambridge Display Technologies, Merchant Gould Smith Edell Welter and Schmidt, September 15, 1998: US05807627 (160 worldwide citation)

An electroluminescent device has at least two active semiconductive conjugated polymer light emitting layers arranged between a cathode and an anode. The layers are arranged so that at least part of at least two layers lie in an emission zone of the device.


2
Andrew Bruce Holmes, Arno Kraft, Paul Leslie Burn, Stephen Carl Moratti, Richard Henry Friend, Donal Donat Conor Bradley, Neil Clement Greenham, Adam Richard Brown, Josef Herbert Ferdinand Martens, Franco Cacialli, Johannes Gruener: Electroluminescent device comprising a chromophoric polymeric composition. Cambridge Display Technology, Merchant Gould Smith Edell Welter & Schmidt P A, August 5, 1997: US05653914 (154 worldwide citation)

An electroluminescent device is provided incorporating an emissive layer comprising a processible polymer matrix such as poly(methylmethacrylate) and a chromophoric component such as an asymmetric stilbene or distyrylbenzene. The chromophoric component is blended with the polymer matrix or covalentl ...


3
Josef Herbert Ferdinand Martens, Paul Leslie Burn, Karl Pichler, Richard Henry Friend, Andrew Bruce Holmes: Electroluminescent devices having a light-emitting layer. Cambridge Display Technology, Merchant Gould Smith Edell Welter & Schmidt, October 13, 1998: US05821690 (144 worldwide citation)

An electroluminescent device includes first and second layers (6, 12) of light emitting semiconductive conjugated polymers with an electrode arrangement (4, 8, 10, 14) for injecting charge carriers into both light emissive layers to cause light to be emitted therefrom. The first and second light emi ...


4
Andrew Holmes, Donal Donat Bradley, Richard Henry Friend, Arno Kraft, Paul Burn, Adam Brown: Semiconductive copolymers for use in luminescent devices. Cambridge Display Technology, Merchant Gould Smith Edell Welter & Schmidt P A, September 30, 1997: US05672678 (125 worldwide citation)

A semiconductive conjugated copolymer comprises at least two chemically different monomer units which, when existing in their individual homopolymer forms, have different semiconductor bandgaps. The proportion of said at least two chemically different monomer units in the copolymer is selected to co ...


5
Richard Henry Friend, Karl Pichler, Ichio Yudasaka: Organic light-emitting devices. Cambridge Display Technology, Seiko Epson Corporation, Marshall Gerstein & Borun, February 11, 2003: US06518700 (97 worldwide citation)

An organic light-emitting device comprising a transparent cover sheet; a region of organic light-emitting material behind the cover sheet; a region of circuitry behind the cover sheet for regulating the flow of current to the organic light-emitting material; and a non-light-transmissive layer which ...


6
Nir Tessler, Henning Sirringhaus, Richard Henry Friend: Polymer devices. Cambridge Display Technology, Finnegan Henderson Farabow Garrett & Dunner, August 5, 2003: US06603139 (76 worldwide citation)

An integrated circuit device comprising: a current drive switching element having an input electrode, an output electrode, a switchable region comprising a semiconductive polymer material electrically coupled between the input electrode and the output electrode, and a control electrode electrically ...


7
Richard Henry Friend, Andrew Bruce Holmes, Donal Donat Conor Bradley, Paul Leslie Burn, Arno Kraft, Adam Richard Brown, Jeremy Henley Burroughes, Neil Clement Greenham: Manufacture of electroluminescent devices. Cambridge Display Technology, Merchant Gould Smith Edell Welter & Schmidt P A, May 5, 1998: US05747182 (53 worldwide citation)

In an electroluminescent device which comprises a layer of a semiconductive conjugated polymer between positive and negative charge carrier injecting electrodes, a barrier layer is arranged between the layer of semiconductive conjugated polymer and the charge carrier injecting layer for negative cha ...


8
Richard Henry Friend: Display device with improved contrast. Cambridge Display Technology, Finnegan Henderson Farabow Garrett & Dunner, June 17, 2003: US06580212 (49 worldwide citation)

A display device comprising: a light-emissive structure including two regions of light emissive material for emitting light in a viewing direction, the regions being spaced apart in a direction perpendicular to the viewing direction the light-emissive structure being capable of guiding light emitted ...


9
Henning Sirringhaus, Richard Henry Friend, Richard John Wilson: Aligned polymers for an organic TFT. Cambridge University Technical Services, April 20, 2004: US06723394 (39 worldwide citation)

A method for forming an electronic device having a semiconducting active layer comprising a polymer, the method comprising aligning the chains of the polymer parallel to each other by bringing the polymer into a liquid-crystalline phase.


10
Nir Tessler, Peter Ho, Richard Henry Friend: Optical devices. Cambridge Display Technologies, Finnegan Henderson Farabow Garrett & Dunner, August 17, 2004: US06777706 (36 worldwide citation)

An optical device having a layer comprising an organic material that includes a substantially uniform dispersion of light transmissive nanoparticles.