OLED light-emitting device and manufacturing method thereof

Abstract

The invention relates to an OLED light-emitting device and a manufacturing method of the OLED light-emitting device. The OLED light-emitting device comprises a substrate, a planarization layer and a plurality of light-emitting units, wherein the planarization layer is located on the substrate and provided with a plurality of bending parts which are arranged at intervals; the light-emitting units are located on the planarization layer, and each light-emitting unit is located on the corresponding bending part and has a shape corresponding to that of the bending part. Each light-emitting unit comprises a first electrode, a light-emitting structure located on the first electrode and a second electrode located on the light-emitting structure. A cross section of each bending part has an arc-shaped outline as a whole. According to the OLED light-emitting device and the manufacturing method of the OLED light-emitting device, by arranging the bending parts in the contact positions of the light-emitting units and the planarization layer, the planar planes of the light-emitting units are turned into bending surfaces, the aperture rate of organic light-emitting diodes is substantially increased, light-emitting area is enlarged, and thus the luminance of the OLEDs is improved, power consumption is reduced, and the service life of the product is prolonged.

Description

technical field [0001] The present disclosure relates to a light emitting device, in particular to an OLED light emitting device and a manufacturing method thereof. Background technique [0002] OLED (Organic Light Emitting Diode) is an organic electroluminescent device, which emits light by sandwiching an organic light-emitting material between a transparent anode and a metal reflective cathode, and applying a voltage to an organic film. Can be used as a lighting device. [0003] The light-emitting unit of OLED is mainly composed of metal cathode, electron injection layer, electron transport layer, light-emitting layer, hole transport layer, hole injection layer and transparent anode. Because the OLED light-emitting surface is composed of multiple effective light-emitting units and pixel definition layers, not the entire surface can emit light, so there is the concept of aperture ratio. The aperture ratio refers to the ratio of the surface area of ​​the effective light-em...

AI Technical Summary

Problems solved by technology

At present, generally speaking, the highest aperture ratio can only reach about 60%, and now OLED, as a commonly used lighting and display material, has a large amount of usage, so the current aperture ratio of OLED cannot meet the needs of use.

[0006] In addition, when the resolution of the OLED display panel is higher, the opening area of ​​the pixel will be smaller, and the brightness of the pixel will also be reduced.

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