ORGANIC LIGHT EMITTING DIODE WITH SURFACE MODIFICATION LAYER

• Main Authors: BHANDARI ABHINAV, ARBAB MEHRAN, MARIETTI GARY J, BUHAY HARRY, BASIL JOHN D
• Format: Patent
• Language: English; Korean
• Published: 21.12.2016
• Subjects: ELECTRICITY

유기 발광 다이오드(10)는 제 1 표면(14) 및 제 2 표면(16)을 갖는 기판(12), 제 1 전극(32) 및 제 2 전극(38)을 포함한다. 발광층(36)이 제 1 전극(32)과 제 2 전극(38) 사이에 위치한다. 유기 발광 다이오드(10)는 표면 개질 층(18)을 추가로 포함한다. 표면 개질 층(18)은 비-평면 표면(30, 52)을 포함한다. An organic light emitting diode includes a substrate having a surface modification layer. The surface modification layer includes a first film and a second film. The first film has a coefficient of expansion that is greater than the coefficient of expansion for the second film. The second film has ridges and troughs. A method of making a surface modification layer. A first film is formed over a substrate. The coated substrate is heated to expand the first film to a second surface area. A second film is formed over the expanded first film. The substrate coated with the first and second films is cooled to form ridges and troughs in the second film.