Light emitting device with an incorporated optical wavelight layer

A display device having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix wherein, said light-emitting element comprising:

• a light-emitting device having a flat surface at least a portion therein;
• wherein the light-emitting device includes a light-emitting layer, an electrode functioning as an anode, and an electrode functioning as a cathode;
• and
• a tilted reflective surface is made in a peripheral area surrounding said flat surface of light-emitting device and has a tilt angle against said flat surface of said light-emitting device, wherein, an optical waveguide layer is overlaid in an area surrounded by said tilted reflective surface on said light emitting device, and wherein, said optical waveguide layer is optically isolated from each of said picture element.

A display device

• having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix wherein, said light-emitting element comprising:
• a light-emitting layer having a flat surface at least a portion therein;
• and
• a tilted reflective surface is made in a peripheral area surrounding said flat surface of light-emitting layer and has a tilt angle against said flat surface of
• said light-emitting layer, wherein, an optical waveguide layer is overlaid in an area surrounded by said tilted reflective surface on said light emitting layer, wherein, said optical waveguide layer is optically isolated from each of said picture element, and
• wherein, a height of said optical waveguide layer from said flat surface of said light-emitting layer is minimum at the center of area surrounded by said tilted reflective surface and higher against closer to said tilted reflective surface.

A display device

• having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix wherein, said light-emitting element comprising:
• a light-emitting layer having a flat surface at least a portion therein;
• and
• a tilted reflective surface is made in a peripheral area surrounding said flat surface of light-emitting layer and has a tilt angle against said flat surface of
• said light-emitting layer, wherein, an optical waveguide layer is overlaid in an area surrounded by said tilted reflective surface on said light emitting layer, wherein, said optical waveguide layer is optically isolated from each of said picture element, and
• wherein a height of said optical waveguide layer from said flat surface of said light-emitting layer is maximum at the center of area surrounded by said tilted reflective surface.

A display device

• having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix wherein, said light-emitting element comprising:
• a light-emitting layer having a flat surface at least a portion therein;
• a transparent electrode;
• and
• a tilted reflective surface is made in a peripheral area surrounding said flat surface of light-emitting layer and has a tilt angle against said flat surface of said light-emitting layer,
• wherein, an optical waveguide layer is overlaid in an area surrounded by said tilted reflective surface on said light emitting layer and transparent light electrode, wherein, said optical waveguide layer is optically isolated from each of said picture element, and
• wherein refractive index of said optical waveguide layer is larger than that of air and lower than that said transparent electrode.

A display device

• having a plurality of light-emitting elements that construct picture elements aligned on a substrate in a formation of a matrix wherein, said light-emitting element comprising:
• a light-emitting layer having a flat surface at least a portion therein;
• and
• a tilted reflective surface is made in a peripheral area surrounding said flat surface of light-emitting layer and has a tilt angle against said flat surface of
• said light-emitting layer, wherein, an optical waveguide layer is overlaid in an area surrounded by said tilted reflective surface on said light emitting layer, and wherein, said optical waveguide layer is optically isolated from each of said picture element,
• wherein said light-emitting element is an organic light-emitting diode constructed with a reflective electrode that functions as an optical reflector, a light-emitting layer consisting of an organic layer and a transparent electrode stacked in order from said substrate, and
• wherein a sealing material that is transparent against visible light and has gas-barriering characteristics is set on a side of said light-emitting layer made on said substrate and wherein said substrate and said sealing material are adhesively bonded with a gap between said sealing material and said optical waveguide layer, said gap has substantially same refractive index as air.