Fabrication method of third-dimensional (3D) electroluminescent device

A technology of electroluminescent devices and electroluminescent layers, which is applied in the direction of electroluminescent light sources, electric light sources, electrical components, etc., and can solve problems such as the inability to adjust the gray scale

Active Publication Date: 2015-04-08
SHANGHAI DONGZHOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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Examples

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preparation example Construction

[0017] A method for preparing a 3D three-dimensional electroluminescent device, which includes: a three-dimensional object on a non-planar substrate, a basic adsorption layer, a first conductive layer, a grayscale adjustment layer, a second conductive layer, an insulating medium layer, and an electroluminescent Layer, third conductive layer, protective layer, transparent color layer; use spraying process to make the above structures in sequence, and make it completely cover the upper layer structure; use multi-pole graded voltage drivers to connect the conductive layers respectively, the first conductive layer controls the gray scale , and separate a plurality of independent control areas or pixel elements, the first conductive layer is completely covered by the grayscale adjustment layer; the second conductive layer and the third conductive layer control flickering. The multi-layer electrode structure used in the present invention mainly realizes the gray level control contro...

Embodiment 1

[0037] A 3D three-dimensional sphere electroluminescent device is prepared. Plastic hollow spheres such as basketballs and footballs are selected. The surface basic adsorption layer is sprayed with modified red epoxy to a thickness of 0.01 mm and dried.

[0038] Use silver paste as the first conductive layer, add 0.1% organic fluorescent green dye by weight, spray on the surface of the basic adsorption layer, and dry. The grayscale adjustment layer is made of copper calcium titanate material mixed with tetraethyl orthosilicate, water and ethanol, and left for 24 hours. Add 1% ink and 0.07% fluorescent orange dye according to the weight ratio of the above materials, and spray on the first conductive layer. The surface of the layer is completely covered and dry under ultraviolet light observation.

[0039] Silver paste is used for the second conductive layer, 0.5% organic fluorescent blue dye is added by weight, sprayed on the surface of the gray scale adjustment layer, and drie...

Embodiment 2

[0042] A 3D three-dimensional electroluminescence drinking cup, using a 3D printer to make a colored plastic cup with a handle. The basic adsorption layer is prepared using epoxy. Select copper paste as the first conductive layer, add 0.1% organic fluorescent green dye by weight, spray on the surface of the basic adsorption layer, and dry. The gray scale adjustment layer is made of copper calcium titanate material and barium titanate mixed material, and then mixed with butyl titanate, water, ethanol and ink to make a gray scale adjustment layer. The ink uses polyurethane adhesive material, and red is added to them. Fluorescent dyes are sprayed into films.

[0043] The electroluminescent layer uses D512C luminescent material, which is also uniformly mixed with butyl titanate, water, ethanol, and ink to form a luminescent layer. The third conductive layer, transparent color protective layer; use the spraying process to make the above structures in sequence; the third conductiv...

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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. [0002] Background technique [0003] 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/10
Inventor 郑岩边静宇郭素文陈磊徐春霞
Owner SHANGHAI DONGZHOU IND
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