PIXEL DEFINITION LAYER, ORGANIC LIGHT-EMITTING DEVICE, AND DISPLAY DEVICE

摘要

A pixel definition layer, an organic light-emitting device, and a display device. The pixel definition layer comprises a first definition layer (102) arranged on an array substrate (101) and a second definition layer (103) arranged on the first definition layer (102). The first definition layer (102) is made of a lyophilic inorganic material and the second definition layer (103) is made of a lyophobic organic material. The pixel definition layer, the organic light-emitting device, and the display device can realize a pixel patterning of the organic material by using an ink-jet printing technology, and the organic material layer not only can be used as a protection layer for dry etching of the first-layer inorganic material but also can be used as the lyophobic layer of the second layer. Two mask plate processes are removed in the dual-layer pixel definition layer manufacturing, therefore the cost can be effectively reduced and the production efficiency can be improved in the process.