A 3D three-dimensional electroluminescent device preparation method

Abstract

The invention discloses a fabrication method of a third-dimensional (3D) electroluminescent device. The method comprises the following steps: sequentially fabricating structures of a three-dimensional object, a base adsorption layer, a first conductive layer, a grey level adjustment layer, a second conductive layer, an insulated dielectric layer, an electroluminescent layer, a third conductive layer, a protective layer and a transparent color layer of a non-planar substrate by using a spraying technology, and completely covering the structure of the previous layer; respectively connecting the conductive layers by virtue of a multi-polar hierarchical voltage driver, wherein the first conductive layer is used for controlling the grey level and is partitioned into a plurality of independent control regions or pixel elements; the first conductive layer is completely covered by the grey level adjustment layer; the second conductive layer and the third conductive layer are controlled to flicker. Large-area fabrication of the electroluminescent device is achieved; working at low safe voltage is achieved; the thickness is simple to recognize; third-dimensional multiple angles are not limited, thus the fabrication method can be widely applied to fabrication of the third-dimensional electroluminescent device, and can be widely applied to object advertisements, building walls and safety signs.

Description

technical field [0001] The invention belongs to the technical field of electroluminescent devices application. Background technique [0002] Electroluminescent flat-panel devices, also known as electroluminescent flat-panel devices, have been widely used in architectural decoration, automotive instrumentation, liquid crystal backlighting, and print advertisements as a light source for surface-emitting display of flexible plastic films. At this stage, the new flat panel display technology is constantly pursuing technical indicators such as large, light, thin, and power-saving. At present, most flat-panel displays are based on glass and plastic film substrates, such as: field emission display (FED), liquid crystal display (LCD), organic electroluminescence display (OEL or OLED), plasma display (PDP), LED large screen display. Its disadvantages are that flat glass is fragile, limited in area, heavy in weight, heats up in operation, inflexible, long in production cycle, high...

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Problems solved by technology

Chinese patents 201110385392.4 and 201210022011.0 record the use of copper calcium titanate materials to realize the structure of multi-layer electron emission to improve brightness, but none of them can adjust the gray scale, especially the three-dimensional multiple local gray scale contrast, such as the existing regular plane three-dimensional light emitting technology Realization requires cutting and pasting after preparation of sheet devices