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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTakafumi Hamano, Hisanori Sugiura, Naohide Wakita, Hiroshi Yamaguchi, Tomohiko Sasano, Yasuhiro Tanaka
Estimating the term…
There are provided an organic electroluminescence element which is excellent in visibility and which can maintain a light emission performance with a high degree of efficiency, an image forming apparatus which is excellent in visibility and which can maintain a light emission performance with a high degree of efficiency, and a portable terminal unit which is lightweight and which has a long use life. The organic electroluminescence element incorporates at least, on a substrate, an anode for injecting holes, a luminous layer having a light emitting zone, a cathode for injecting electrons, wherein light radiated from the luminous layer is extracted through a surface opposed to the substrate, and an inverted V-like structure higher than the luminous layer is formed on at least a part of an element forming surface of the substrate.
An organic electroluminescence element at least having, on a substrate, an anode for injecting holes, a luminous layer including a luminous zone, and a cathode for injecting electrons, characterized in that light emitted from the luminous layer is extracted to a surface opposed to the substrate, and an inverted V-like structure is formed in at least a part of an element forming surface of the substrate, the inverted V-like structure being higher than the luminous layer.
An organic electroluminescence element incorporating at least, on a substrate, an anode for injecting holes, a luminous layer having a light emitting zone and a cathode for injecting electrons, characterized in that a light emitting part including said luminous layer has an area which is greater than an area of an aperture through which light from said luminous layer is extracted.
An organic electroluminescence element incorporating at least, on a substrate, an anode for injecting holes, a luminous layer having a light emitting zone and a cathode for injecting electrons, characterized in that a light emitting part including said luminous layer is formed in a plane having an nonparallel relationship with an aperture through which light from said luminous layer is extracted.
An organic electroluminescence element having at least, on a substrate, an anode for injecting holes, a luminous layer having a light emitting zone, and a cathode for injecting electrons, characterized by a light angle changing panel formed on an element forming surface of said substrate.
An organic electroluminescence element incorporating a luminous layer having a light emitting zone between two electrodes, a substrate is provided at one of said electrode sides, and a light angle changing panel is provided at the other of said electrode sides.
An organic electroluminescence element incorporating at least, on a substrate, an anode for injecting holes, a luminous layer having a light emitting zone, and a cathode for injecting electrons, characterized in that light radiated from said luminous layer is extracted through a light extracting surface opposed to said substrate, not less than at least two semisphere-like micro lenses having sizes which are different from one another are formed on said light extracting surface.
An organic electroluminescence element incorporating at least, on a substrate, an anode for injecting holes, a luminous layer having a light emitting zone, and a cathode for injecting electrons, characterized in that light radiated from said luminous layer is extracted through a light extracting surface opposed to said substrate, not less that at least two semisphere-like micro lenses having sizes which are different from one another are formed on said light extracting surface, and a flattening surface is formed on the light extracting surface side of the micro lenses so as to define a flat surface through the intermediary of an air layer and at least a part of contact points.
An organic electroluminescence element incorporating a luminous layer having a light emitting zone between two electrodes, characterized in that a substrate is provided on one of said electrode sides, and semisphere-like micro lenses are provided on the other one of said electrode sides.
Dependencies are inferred from the claim text.