ORGANIC LIGHT-EMITTING DIODE (OLED) SUBSTRATE AND DISPLAY DEVICE

摘要

An organic light-emitting diode (OLED) substrate, which includes a plurality of light-emitting sub-pixels and a pixel partition wall, wherein at least one layer among hole injection layers (HIL), hole transport layers (HTL) and organic light-emitting layers of at least two light-emitting sub-pixels has a different thickness; and upper surfaces of the HIL, the HTL and the organic light-emitting layer of any light-emitting sub-pixel are each parallel and level to an upper surface of one respective lyophilic film layer of the pixel partition wall. The OLED substrate can be used for improving the surface smoothness of each organic layer of the light-emitting sub-pixel. The embodiment of the present invention further provides a display device.

主权项

1. An organic light-emitting diode (OLED) substrate, comprising a base substrate, a plurality of light-emitting sub-pixels disposed on the base substrate, and a pixel partition wall disposed on the base substrate and configured to separate the light-emitting sub-pixels, wherein
each of the light-emitting sub-pixel includes an anode, a hole injection layer (HIL), a hole transport layer (HTL) and an organic light-emitting layer which are stacked on the substrate in sequence; the pixel partition wall includes lyophilic film layers and lyophobic film layers which are alternately stacked; a lyophilic film layer is disposed on the bottommost layer of the pixel partition wall; a lyophobic film layer is disposed on the upmost layer of the pixel partition wall; at least one layer among an HIL, an HTL and an organic light-emitting layers for at least two light-emitting sub-pixel has a different thickness; and upper surfaces of the HIL, the HTL and the organic light-emitting layer of any light-emitting sub-pixel are each parallel and level to an upper surface of one respective lyophilic film layer of the pixel partition wall.