Combined information display and information input device
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Accused Products
Abstract
A combined information display and information input device comprising a matrix of independently addressable light emitting devices and a plurality of light sensing devices, the light emitting devices comprising organic light emitting diodes comprising organic light emitting material positioned between a low work function electrode and a high work function electrode characterized in that the light sensing devices comprise organic photovoltaic devices comprising at least an organic electron donor and at least an organic electron acceptor positioned between a high work function electrode and a low work function electrode. The combined information display and information input device has application as a touch screen, for example for a mobile communication device.
173 Citations
84 Claims
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1-56. -56. (canceled)
- 57. A combined information display and information input device comprising a matrix of independently addressable light emitting devices and a plurality of light sensing devices, said light emitting devices comprising organic light emitting diodes comprising organic light emitting material positioned between a low work function electrode and a high work function electrode wherein said light sensing devices comprise organic photovoltaic devices comprising at least an organic electron donor and at least an organic electron acceptor positioned between a high work function electrode and a low work function electrode.
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82. Method of preparing a combined information display and information input device comprising the steps of:
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(a) providing a substrate, (b) providing a patterned layer of conducting material having a high work function, (c) providing a patterned layer of organic light emitting material and a patterned layer of organic photovoltaic material, said organic photovoltaic material comprising at least an organic electron donor and at least an organic electron acceptor, and (d) providing a layer of a conducting material having a low work function, wherein at least one of said steps of providing a patterned layer of organic light emitting material or a patterned layer of organic photovoltaic material over said layer of conductive material of high work function comprises applying said material using a method of selective printing. - View Dependent Claims (83, 84)
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Specification