Organic electroluminescent display
AssigneeFUJIFILM Corporation
InventorsKatsumi Inoue, Ryuji Saneto
Life of this patent
Estimating the term…
Abstract
An organic electroluminescent display includes a pair of substrates; an organic electroluminescent device between the pair of substrates, including: a pair of electrodes of an anode and a cathode, and a light-emitting layer between the pair of electrodes; and a light scattering film on a substrate on the viewing side of the pair of substrates, including: a transparent substrate film, and a light scattering layer which contains a light transmitting resin and a light scattering particle having a particle size of front more than 1.2 μm to 3.0 μm, wherein a ratio of (np/nb) is from 0.80 to 0.95 or from 1.05 to 1.35, taking a refractive index of the light scattering particle and the light transmitting resin as np and nb, respectively.
Claims16
An organic electroluminescent display comprising:
- a pair of substrates;
- an organic electroluminescent device between the pair of substrates, comprising:
- a pair of electrodes of an anode and a cathode, and
- a light-emitting layer between the pair of electrodes;
- and
- a light scattering film provided at a viewing side of a substrate, which is one of the pair of substrates provided at a viewing side, wherein the light scattering film comprises;
- a transparent substrate film, and
- a light scattering layer which contains a light transmitting resin and a light scattering particle having a particle size of from more than 1.2 μm to 3.0 μm,
- wherein
- a ratio of (np/nb) is from 0.80 to 0.95 or from 1.05 to 1.35, taking a refractive index of the light scattering particle and the light transmitting resin as np and nb, respectively, and
- the light scattering film has an asymmetry parameter (g) of from 0.950 to 0.995.
An organic electroluminescent display comprising;
- a pair of substrates, and
- an organic electroluminescent device between the pair of substrates, comprising:
- a pair of electrodes of an anode and a cathode, and
- a light-emitting layer between the pair of electrodes,
- a light scattering film provided at a viewing side of a substrate, which is one of the pair of substrates provided at a viewing side, wherein the light scattering film comprises
- a gas barrier film having a water vapor permeability of 0.01 g/m2 day or less at 40° C. 90% RH, and
- a light scattering layer which contains a light transmitting resin and a light scattering particle having a particle size of more than 1.2 μm to 3.0 μm;
- and
- a ratio of (np/nb) is from 0.80 to 0.95 or from 1.05 to 1.35, taking a refractive index of the light scattering particle and the tight transmitting resin as up and nb, respectively, and
- the light scattering film has an asymmetry parameter (g) of from 0.950 to 0.995.
Dependencies are inferred from the claim text.