Abstract: An organic electroluminescent panel includes several sub-pixels. The sub-pixels include at least one first electrode; at least one shadow wall formed at the periphery of the first electrode; at least one first common layer formed on the first electrode; several emission layers independently formed on the first common layer; at least one second common layer formed on the emission layers; and at least one second electrode formed on the second common layer. During the fabricating process, the first, second, and third color evaporation sources are provided independently for forming the first, second, and third color emission layers on the corresponding region of first electrode. The tilt directions of three color evaporation sources and the evaporation angles between the evaporation source and the substrate surface are determined according to the positions and heights of the shadow walls.

Abstract: An organic electroluminescent device, a flat panel display, and a portable electronic device using the same are disclosed. The organic electroluminescent device comprises a substrate, a transparent anode disposed on the substrate, a transparent cathode disposed opposite the transparent anode, and an organic light emitting layer interposed between the transparent anode and the transparent cathode. The organic electroluminescent device further comprises a first light transmissive optical compensation layer interposed between the transparent anode and the substrate, wherein the first light transmissive optical compensation layer is substantially made of a transition metal oxide.

Abstract: An organic electroluminescent panel includes several sub-pixels. The sub-pixels include at least one first electrode; at least one shadow wall formed at the periphery of the first electrode; at least one first common layer formed on the first electrode; several emission layers independently formed on the first common layer; at least one second common layer formed on the emission layers; and at least one second electrode formed on the second common layer. During the fabricating process, the first, second, and third color evaporation sources are provided independently for forming the first, second, and third color emission layers on the corresponding region of first electrode. The tilt directions of three color evaporation sources and the evaporation angles between the evaporation source and the substrate surface are determined according to the positions and heights of the shadow walls.

Abstract: Shadow masks capable of full-color process of display elements are provided. An exemplary embodiment of a shadow mask comprises a main body having a plurality of openings formed therethrough. A plurality of recesses formed over the main body, located adjacent to the openings. In an exemplary embodiment, the recesses are respectively defined by a trench formed in the main body and the trench is integrated with the main body. In another exemplary embodiment, the recesses are defined by a plurality of ribs protruding over a surface of the main body.

Abstract: A full-color organic electroluminescence panel with high resolution comprises a substrate and a plurality of sub-pixel units formed on the substrate. Each sub-pixel unit includes four sub-pixel elements emitting light with the same color. Also, the light color emitted from each sub-pixel unit is different from the light color emitted from the adjacent sub-pixel unit.

Abstract: An organic light-emitting diode (OLED) includes a first electrode, an electron transport layer, an emitting layer, and a second electrode. The electron transport layer has at least one n-type dopant to enhance electron mobility. The n-type dopant includes an alkali halide, an alkaline-earth halide, an alkali oxide, or a metal-carbonate compound.

Abstract: An organic electroluminescent device, a flat panel display, and a portable electronic device using the same are disclosed. The organic electroluminescent device comprises a substrate, a transparent anode disposed on the substrate, a transparent cathode disposed opposite the transparent anode, and an organic light emitting layer interposed between the transparent anode and the transparent cathode. The organic electroluminescent device further comprises a first light transmissive optical compensation layer interposed between the transparent anode and the substrate, wherein the first light transmissive optical compensation layer is substantially made of a transition metal oxide.

Abstract: An organic light emitting device includes a transparent electrode, a reflective electrode, and an organic light emitting element. The organic light emitting element includes an emissive material layer doped with an emissive dopant, and is disposed between the transparent electrode and the reflective electrode. The total thickness of the organic light emitting element is greater than the wavelength of the light from the emissive material layer.

Abstract: The isotope U.sup.235 is separated from a gasified isotope mixture of U.sup.235 and U.sup.238 by selectively exciting the U.sup.235 from the ground state utilizing resonant absorption of radiation from precisely tuned lasers. The excited isotope is then selectively ionized by electron bombardment. It then is separated from the remaining isotope mixture by electromagnetic separation.