Electrode and manufacturing method thereof, light-emitting device and display device

Abstract

The invention discloses an electrode and a manufacturing method thereof, a light-emitting device and a display device, and relates to the technical field of OLED display, so as to simplify the manufacturing method of the electrode and reduce the complexity of manufacturing the electrode. The electrode includes a reflective layer and at least one double-layer adjustment unit stacked on the reflective layer, the double-layer adjustment unit includes an insulating layer and a conductive layer arranged in sequence along the direction away from the reflective layer, and the insulating layer is provided with a hole, and the electrode lead wire with the reflective layer is arranged in the said via hole; the difference between the thickness of the conductive layer and the thickness of the insulating layer included in each double-layer adjustment unit does not exceed the set threshold value, and the set threshold value It is used to control the thickness of the insulating layer, so that when the conductive layer is formed, an electrode lead electrically connected to the reflective layer is formed in the via hole. The light emitting device includes the electrode mentioned in the above technical solution. The electrode provided by the invention and its manufacturing method, light-emitting device and display device are used in OLED display.

Description

technical field [0001] The invention relates to the technical field of OLED display, in particular to an electrode and a manufacturing method thereof, a light emitting device and a display device. Background technique [0002] Currently, display devices such as virtual reality displays or augmented reality often use micro-organic electroluminescent displays for image display. In order to make the images displayed by the micro-OLEDs closer to the real-world scenes seen by the naked eye, it is necessary to ensure that the images displayed by the micro-OELs have no graininess after optical magnification. When the pixel density (Pixels Per Inch, abbreviated as PPI) of the micro organic electroluminescent display is greater than 2000, the graininess of the image displayed by the micro organic electroluminescent display is relatively weak after optical amplification, which can satisfy people's understanding of the micro organic electroluminescent display. Luminescent display disp...

AI Technical Summary

Problems solved by technology

However, due to the relatively thin thickness of the reflective layer, when the reflective layer and the conductive layer are electrically connected through the via hole, the metal material that forms the electrode lead can only be filled in the via hole, and then a transparent conductive layer is formed on the surface of the insulating layer. The conductive layer is electrically connected to the conductive layer through the electrode leads formed of metal materials, which makes the anode production more troublesome

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