Light Emitting Device
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Abstract
It is an object of the invention to provide a light emitting device which can display a superior image in which luminescent color from each light emitting layer is beautifully displayed and power consumption is lowered in a light emitting element in which light emitting layers are stacked. One feature of the invention is that, in a light emitting element which comprises light emitting layers stacked between electrodes, each distance between each light emitting layer and an electrode is approximately oddly multiplied ¼ wavelength by controlling a thickness of a layer provided therebetween to enhance luminous output efficiency. Another feature of the invention is that a drive voltage is lowered using a high conductive material for the layer compared with a conventional element.
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Citations
36 Claims
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1-10. -10. (canceled)
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11. A light-emitting device comprising:
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a first substrate; a first electrode provided over the first substrate; a first layer comprising silicon, indium tin, wherein the first layer is provided over the first electrode; a first light-emitting layer provided over the first layer; a second light-emitting layer provided over the first light-emitting layer; a second electrode provided over the second light-emitting layer; a color filter provided over the second electrode; and a second substrate provided over the color filter, wherein the first electrode is a reflective electrode. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A light-emitting device comprising:
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a first substrate; a first electrode provided over the first substrate; a first light-emitting unit provided over the first electrode, wherein the first light-emitting unit comprises; a first layer comprising silicon, indium tin, wherein the first layer is provided over the first electrode; a first light-emitting layer provided over the first layer; a second light-emitting unit provided over the first light-emitting unit, wherein the second light-emitting unit comprises; a second light-emitting layer provided over the first light-emitting layer; a second electrode provided over the second light-emitting unit; a color filter provided over the second electrode; and a second substrate provided over the color filter, wherein the first electrode is a reflective electrode. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification