Oled device, oled display apparatus and preparation method for oled device

The OLED device according to claim 22, wherein the first auxiliary electrode layer and the second auxiliary electrode layer are configured to be connected with a positive pole and a negative pole of a DC power supply respectively.

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An OLED display apparatus, comprising an OLED device, wherein the OLED device comprises a pixel defining layer, an organic light-emitting functional layer and an auxiliary electrode layer on a base substrate, wherein the organic light-emitting functional layer is in opening regions of the pixel defining layer and comprises an organic light-emitting material in which the organic light-emitting molecules are directionally arranged;

• and
• the auxiliary electrode layer is configured to form an electric field in the opening regions which enables the organic light-emitting molecules in the organic light-emitting material to be directionally arranged, and the organic light-emitting material is prepared through a wet process.

The OLED display apparatus according to claim 24, wherein the first auxiliary electrode layer and the second auxiliary electrode layer are configured to be connected with a positive pole and a negative pole of a DC power supply respectively.

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A preparation method for an OLED device,

• forming first an auxiliary electrode layer and a pixel defining layer on a base substrate;
• preparing an organic light-emitting material in opening regions of the pixel defining layer, and forming an electric field which enables organic light-emitting molecules in the organic light-emitting material to be arranged directionally in the opening regions of the pixel defining layer through the auxiliary electrode layer.

The method according to claim 25, wherein forming the electric field which enables organic light-emitting molecules in the organic light-emitting material to be arranged directionally in the opening regions of the pixel defining layer through the auxiliary electrode layer comprises:

• connecting the first auxiliary electrode layer and the second auxiliary electrode layer with a positive pole and a negative pole of a DC power supply respectively and turning on the DC power supply.

(canceled)

The method according to claim 25, wherein before forming the pixel defining layer on the first auxiliary electrode layer and the second auxiliary electrode layer through the one-time patterning process, the method further comprises:

• forming a first electrode layer on the base substrate through the one-time patterning process, wherein the first electrode layer is spaced apart from the first auxiliary electrode layer and the second auxiliary electrode layer respectively.