PIXEL DEFINING LAYER, ORGANIC LIGHT-EMITTING DEVICE AND PREPARATION METHOD THEREOF, AND DISPLAY DEVICE
FIG5 is a schematic diagram of a sectional structure of an organic light-emitting device provided by at least one embodiment of the present disclosure  FIG7 is a block diagram of a display apparatus provided by at least one embodiment of the present disclosure  FIG6 is a schematic diagram of a sectional structure of an organic functional layer provided by at least one embodiment of the present disclosure
At least one embodiment of the present disclosure further provides an organic light-emitting device, and for example, FIG5 is a schematic diagram of a sectional structure of an organic light-emitting device provided by at least one embodiment of the present disclosure. As illustrated in FIG5, the organic light-emitting device 20 comprises: a base substrate 201; a pixel definition layer 10 disposed on the base substrate 201, the pixel definition layer 10 is any one of the above mentioned pixel definition layers 10; and an organic functional layer 205 disposed in the plurality of openings 101 of the base definition layer 102.  At least one embodiment of the present disclosure further provides a display apparatus, and the display apparatus comprises: any one of the organic light-emitting device described above. For example, FIG7 is a block diagram of a display apparatus provided by at least one embodiment of the present disclosure. As illustrated in FIG7, the display apparatus 30 includes the organic light-emitting device 20.  For example, FIG6 is a schematic diagram of a sectional structure of an organic functional layer provided by at least one embodiment of the present disclosure. As illustrated in FIG6, the organic functional layer 205, for example, is an organic light-emitting layer, or the organic functional layer 205 comprises a hole injection layer 2051 and an organic light-emitting layer 2053 which are stacked. For example, as illustrated in FIG6, the organic functional layer 205 further comprises a hole transport layer 2052 disposed between the hole injection layer 2051 and the organic light-emitting layer 2053, and an electron transport layer 2054 and an electron injection layer 2055 disposed on the organic light-emitting layer 2053 in sequence. It is understood that, in order to satisfy the requirements on light-emitting of different colors and brightness, the number of layers of the organic functional layers or the order of printing can be changed.
block diagram, schematic diagram
201
base substrate
202
driving transistor
2022
source electrode
2055
208
encapsulation layer
20
organic light-emitting device
205
organic functional layer
2023
drain electrode
2052
hole transport layer
103
definition layer definition layers
30
is
203
first electrode
204
second electrode
6
coumarin
2051
hole injection layer
2054
electron transport layer
207
passivation layer
102
base definition layer
2053
organic light-emitting layer
['1. A pixel definition layer, comprising: a base definition layer having a plurality of openings for defining pixel regions, and a first definition layer arranged on a side surface of at least one of the openings of the base definition layer, wherein a hydrophilic property of the base definition layer is different from a hydrophilic property of the first definition layer.', '10. An organic light-emitting device, comprising: a base substrate; the pixel definition layer according to any one of claims 1 to 9 is arranged on the base substrate; and an organic functional layer disposed in the plurality of openings of the base definition  layer.', '11. The organic light-emitting device according to claim 10, wherein the organic functional layer comprises a hole injection layer and an organic light-emitting layer which are stacked.']