Organic electroluminescence display device
At the time of removing a flexible organic electroluminescence display device from a support substrate, delamination is prevented from occurring at a laminate structure of an OLED. The organic electroluminescence display device includes a flexible base material, a plurality of organic electroluminescence elements, each comprising a pixel electrode, a reflective layer that is disposed between the base material and the pixel electrode and reflects light, a semitransparent counter electrode that is disposed on a light-emitting surface side with respect to the pixel electrode, and an organic electroluminescence function layer that is a lamination including an organic light-emitting layer and disposed between the pixel electrode and the counter electrode, a transparent electrode laminated on the counter electrode, an organic film laminated on the transparent electrode 80 , and a gap 84 generated at a part of an interface between the transparent electrode 80 and the organic film 82.
1. An organic electroluminescence display device comprising:
a flexible base material;
a plurality of organic electroluminescence elements, each comprising a pixel electrode, a reflective layer that is disposed between the base material and the pixel electrode and reflects light, a semitransparent counter electrode that is disposed on a light-emitting surface side with respect to the pixel electrode and opposes to the pixel electrode, and an organic electroluminescence function layer that is a lamination including an organic light-emitting layer and disposed between the pixel electrode and the counter electrode;
a transparent electrode laminated on the counter electrode;
an organic film laminated on the transparent electrode; and
a gap generated at a part of an interface between the transparent electrode and the organic film.
2. The organic electroluminescence display device according to claim 1 , wherein
the transparent electrode is formed of a metal-oxide conductive material, and
the organic film is formed of a hole injection layer material that satisfies a condition where an energy E of a lowest unoccupied molecular orbital is −5.5 electron volt≤E≤−4.5 electron volt.
3. The organic electroluminescence display device according to claim 2 , wherein
the transparent electrode is formed of indium tin oxide or indium zinc oxide.
4. The organic electroluminescence display device according to claim 2 , wherein
the organic film is formed of a material having a fluoro group.
5. The organic electroluminescence display device according to claim 1 , wherein
the organic electroluminescence function layer includes a layer as a hole injection layer laminated on the pixel electrode, the layer being formed of a sputter carbon film or a mixture of a positive hole transport material and dopant.
6. The organic electroluminescence display device according to claim 5 , wherein
the positive hole transport material is an amine hole transport material.