Method for manufacturing microlens and method for manufacturing organic electroluminescence element
View Patent ↗A method for manufacturing an organic thin film element that includes an organic thin film between a pair of thin film electrodes and at least one electrode being a transparent electrode includes forming a transparent electrode by spraying a material liquid containing a transparent electrode formation material on a base material, and forming an organic thin film on the transparent electrode. This method allows for the manufacture of the organic thin film element by which an organic thin film element with high light-extraction efficiency is simply provided. A method for manufacturing an electro-optic device and a method for manufacturing electronic equipment that utilize the method for manufacturing an organic thin film element are described.
1. A method for manufacturing an organic electroluminescence element, the method comprising:
forming a first electrode on a substrate;
forming a bank on the substrate so that the bank overlaps with a first part of the first electrode;
forming a substrate film on a second part of the first electrode with which the bank does not overlap, the substrate film including a polyolefin having a thickness between 1 to 20 nm;
spraying a plurality of droplets to attach the plurality of droplets on the substrate film, each of the plurality of droplets having transparency characteristics, a contact angle between each of the plurality of droplets and the substrate film being more than 50 °;
hardening the plurality of the droplets attached on the substrate film to form a plurality of microlenses on the substrate film, each of the plurality of microlenses and the first electrode including a same conductive material;
forming an organic electroluminescence film on the plurality of microlenses; and
forming a second electrode on the organic electroluminescence film, electrons being transferred between the first and second electrodes and passing the substrate film.
2. The method for manufacturing an organic electroluminescence element according to claim 1 , a refractive index difference between a material for forming the microlens and a material comprising a layer on which the microlens is formed being equal to or less than 0.05.
3. The method for manufacturing an organic electroluminescence element according to claim 1 , a refractive index of each of the plurality of microlenses and a refractive index of the first electrode being substantially equal.
4. The method for manufacturing an organic electroluminescence element according to claim 1 , the plurality of microlenses being configured to collect a light emitted from the organic electroluminescence film.
5. The method for manufacturing an organic electroluminescence element according to claim 1 , the plurality of microlenses being configured to collect a light emitted from the organic electroluminescence film and to emit the collected light to the substrate.
6. The method of manufacturing an organic electroluminescence element according to claim 1 , the plurality of droplets being sprayed by a liquid source misted chemical deposition method.