Ink for forming functional layer, ink container, discharghing apparatus, method for forming functional layer, method for manufacturing organic EL element, light emitting device, and electronic apparatus
申请人:SEIKO EPSON CORPORATION
公开号:US10184056B2
公开(公告)日:2019-01-22
An ink for forming a functional layer includes a first component that contains at least one kind of aromatic solvent of which a boiling point is higher than or equal to 250° C. and lower than or equal to 350° C., a second component that contains at least one kind of aliphatic solvent of which a boiling point is higher than or equal to 200° C., and a third component for forming a positive hole injection layer, in which a solubility of the third component in the first component is higher than the solubility of the third component in the second component, a mixing ratio of the second component is 30 vol %, the boiling point of the first component is higher than the boiling point of the second component, and a difference between the boiling points thereof is higher than or equal to 30° C.
一种用于形成功能层的油墨包括:含有至少一种芳香族溶剂(其沸点高于或等于 250 摄氏度且低于或等于 350 摄氏度)的第一组分;含有至少一种脂肪族溶剂(其沸点高于或等于 200 摄氏度)的第二组分;以及用于形成正孔注入层的第三组分、和用于形成正孔注入层的第三组分,其中第三组分在第一组分中的溶解度高于第三组分在第二组分中的溶解度,第二组分的混合比为 30 vol%,第一组分的沸点高于第二组分的沸点,且两者的沸点差高于或等于 30 摄氏度。