Bottom electrode patterning organic electroluminescence device capable of realizing separated control and preparation method thereof

Abstract

The invention provides a preparation method of a bottom electrode patterning organic electroluminescence device capable of realizing separated control. The method comprises the following steps of performing ITO modular etching on ITO conductive glass; preparing a metal conducting layer on the obtained modular ITO layer to obtain a modular ITO electrode; preparing a patterning insulation layer on the modular ITO electrode to obtain a patterning electrode; then sequentially performing organic layer and metal electrode evaporation plating to obtain the bottom electrode patterning organic electroluminescence device capable of realizing separated control. The patterning insulation layer is introduced by the invention between a negative electrode and a positive electrode; only the single side electrode is subjected to modular treatment; the preparation cost is low; the process is simple; an expensive metal mask template and a precise mechanical laminating process are not needed; the productqualification rate maintains unchanged; in addition, the preparation of the electroluminescence device with hollow patterns can be realized. The invention also provides a bottom electrode patterning organic electroluminescence device capable of realizing the separated control, so that the pattern is precise and reliable.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescent devices, in particular to a discretely controllable bottom electrode patterned organic electroluminescent device and a preparation method thereof. Background technique [0002] In recent years, organic electroluminescent devices have been widely used in actual production and life, especially in the field of lighting and display. Compared with traditional inorganic electroluminescent devices, their preparation and application have become the most active one of the research fields. Organic electronic devices are semiconductor devices with specific functions prepared on the basis of conductive organic materials. Since most of the organic materials in organic electronic devices are composed of carbon and hydrogen, using them to make electronic devices has many advantages, such as Easy to make, low cost, chemically adjustable, transparent and easy to bend, etc. We take advantage of...

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Problems solved by technology

However, for complex graphics, this method often cannot perform accurate electrode docking, and the corresponding electrode leads may be exposed, making the boundaries of the light-emitting patterns blurred, and the whole mechanical bonding process is difficult to solve the problem of continuous decline in yield caused by machine wear and tear. ; and this method cannot prepare hollowed-out luminous graphics

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