Organic EL display device having certain relationships among constituent element refractive indices

An organic electroluminescence display device comprising:

• a supporting substrate;
• an organic electroluminescence element comprising an organic luminescent medium sandwiched between a lower electrode and an upper electrode on the supporting substrate;
• a sealing medium;
• and
• a sealing member:
• the upper electrode being capable of transmitting an electroluminescence emission;
• the sealing medium comprising a transparent resin or a sealing liquid, wherein the transparent resin and the sealing liquid contain a fluorene skeleton containing compound. a bromine containing compound, or a sulfur containing compound as a refractive adjusting agent;
• wherein a following expression (1) is satisfied
• n1≧n2≧n3 (1)
• wherein n 1 represents a refractive index of the upper electrode, n2 represents a refractive index of the sealing medium, and n3 represents a refractive index of the sealing member.

An organic electroluminescence display device comprising:

• a supporting substrate;
• an organic electroluminescence element comprising an organic luminescent medium sandwiched between a lower electrode and an upper electrode on the supporting substrate;
• a sealing medium;
• and
• a sealing member
• the upper electrode being capable of transmitting an electroluminescence emission;
• the sealing medium comprising a transparent resin or a sealing liquid, wherein the transparent resin and the sealing liquid contain an alkoxy titanium;
• wherein a following expression (1) is satisfied
• n1≧n2≧n3 (1)
• wherein n1 represents a refractive index of the upper electrode, n2 represents a refractive index of the sealing medium, and n3 represents a refractive index of the sealing member.

An organic electroluminescence display device comprising:

• a polymer supporting substrate being subjected to moisture-proof treatment or hydrophobic treatment by forming an inorganic film or applying a fluorine resin;
• an organic electroluminescence element comprising an organic luminescent medium sandwiched between a lower electrode and an upper electrode, on the supporting substrate;
• and
• a transparent resin layer and a thin film transistor being arranged between the supporting substrate and the lower electrode, the layer and the transistor being the only members therebetween;
• the lower electrode being capable of transmitting an electroluminescence emission;
• wherein die following expression (6) is satisfied
• n5≧n7≧n8 (6)
• wherein n5 represents a refractive index of the lower electrode, n7 represents a refractive index of the transparent resin layer, and n8 represents a refractive index of the supporting substrate.

An organic electroluminescence display device comprising:

• a polymer supporting substrate being subjected to moisture-proof treatment or hydrophobic treatment by forming an inorganic film or applying a fluorine resin;
• an organic electroluminescence element comprising an organic luminescent medium sandwiched between a lower electrode and an upper electrode, on the supporting substrate;
• and
• a transparent resin layer without any color changing medium located between the supporting substrate and the lower electrode;
• the lower electrode being capable of transmitting an electroluminescence emission;
• wherein the following expression (6) is satisfied.
• n5≧n7≧n8 (6)
• wherein n5 represents a refractive index of the lower electrode, n7 represents a refractive index of the transparent resin layer, and. n8 represents a refractive index of the supporting substrate.

An organic electroluminescence display device comprising,

• a supporting substrate;
• an organic electroluminescence element comprising an organic luminescent medium sandwiched between a lower electrode and an upper electrode on the supporting substrate:
• a sealing medium;
• and
• a sealing member;
• the upper electrode being capable of transmitting an electroluminescence emission;
• the sealing medium comprising a transparent resin selected from polyphenyl methacrylate, polyethylene terephthalate, poly-o-naphthyl methacrylate, polyvinyl napthalene, polyvinyl carbazole, and polyester containing fluorene skeleton;
• wherein a following expression (1) is satisfied
• n1≧n2≧n3 (1)
• wherein n1 represents a refractive index of the uper electrode, n2 represents a refractive index of the scaling medium, and n3 represents a refractive index of the sealing member.