OLED display device including a plurality of strip-shaped grooves and manufacturing method thereof
OwnerWei Liuinventor
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Abstract
An organic light-emitting diode (OLED) display device and a manufacturing method thereof are provided. The OLED display device includes a substrate, a thin-film transistor array substrate, a plurality of anodes, a pixel-defining layer, a plurality of strip-shaped grooves, a light-emitting functional layer, and a cathode disposed on the light-emitting functional layer, wherein the plurality of strip-shaped grooves block a lateral current between each of a plurality of pixel regions, thereby relieving a problem of current crosstalk between adjacent pixels.
Claims19
An organic light-emitting diode (OLED) display device, comprising:
- a substrate;
- a thin-film transistor array substrate disposed on the substrate;
- a plurality of anodes disposed on the thin-film transistor array substrate;
- a pixel-defining layer disposed between the plurality of anodes on the thin-film transistor array substrate and separating the plurality of anodes, wherein a plurality of strip-shaped grooves are provided on the pixel-defining layer;
- a light-emitting functional layer covering the plurality of anodes and the pixel-defining layer;
- and
- a cathode disposed on the light-emitting functional layer;
- wherein the light-emitting functional layer comprises a hole injection layer covering the plurality of anodes and the pixel-defining layer, and a thickness of the hole injection layer is less than a depth of the plurality of strip-shaped grooves;
- wherein the plurality of strip-shaped grooves comprise at least two groove extending directions perpendicular to each other, and the grooves with different groove extending directions are not connected.
A method of manufacturing an organic light-emitting diode (OLED) display device, comprising following steps:
- providing a thin-film transistor array substrate, and forming a plurality of anodes distributed at intervals on the thin-film transistor array substrate;
- forming a pixel-defining layer on the thin-film transistor array substrate, wherein the pixel-defining layer is disposed between the plurality of anodes and separates the plurality of anodes;
- forming a plurality of strip-shaped grooves on the pixel-defining layer;
- forming a light-emitting functional layer on the plurality of anodes and the pixel-defining layer;
- and
- forming a cathode on the light-emitting functional layer;
- wherein the light-emitting functional layer comprises a hole injection layer covering the plurality of anodes and the pixel-defining layer.
An OLED display device, comprising:
- a substrate
- a thin-film transistor array substrate disposed on the substrate;
- a plurality of anodes disposed on the thin-film transistor array substrate;
- a pixel-defining layer disposed between the plurality of anodes on the thin-film transistor array substrate and separating the plurality of anodes, wherein the pixel-defining layer comprises a plurality of strip-shaped grooves;
- a light-emitting functional layer covering the plurality of anodes and the pixel-defining layer;
- and
- a cathode disposed on the light-emitting functional layer;
- wherein the light-emitting functional layer comprises a hole injection layer covering the plurality of anodes and the pixel-defining layer, a thickness of the hole injection layer is less than a depth of the plurality of strip-shaped grooves, a width of each of the plurality of strip-shaped grooves ranges from 0.1μm to 30μm, a depth of each of the plurality of strip-shaped grooves ranges from 10 nm to 200 nm, and the light-emitting functional layer further comprises a hole transport layer, a light-emitting layer, and an electron transport and electron injection layer which are sequentially disposed on the hole injection layer.
Dependencies are inferred from the claim text.