Patent ID: 9425438
Filing Date: 2016-08-23
CPC Classification: H01L

Claim Text:
1. A method for fabricating an organic light emitting diode (OLED) display device, the method comprising: forming a plurality of first electrodes on a substrate; forming a first hole injection layer, a first hole transport layer, a first light emitting layer, a first electron transport layer, and a first buffer layer in a laminated manner on the substrate through a first photo process including a first etching process; forming a second hole injection layer, a second hole transport layer, a second light emitting layer, a second electron transport layer, and a second buffer layer in a laminated manner on the substrate through a second photo process including a second etching process; forming a third hole injection layer, a third hole transport layer, a third light emitting layer, a third electron transport layer, and a third buffer layer in a laminated manner on the substrate through a third photo process including a third etching process; and forming a plurality of second electrodes respectively on the first, second, and third buffer layers, wherein the first, second, and third buffer layers are made of a metal oxide.