A light-emitting structure and display device based on the principle of electroluminescence

Abstract

The invention relates to a light-emitting structure and a display device based on the principle of electroluminescence, including a first support component and a light-emitting filament unit, the first support component includes a thin support substrate and a substrate functional unit, and the substrate functional unit includes sequentially prepared or coated At least one layer of scanning electrodes and a fixed component on a thin support substrate; the luminous filament unit is fixed on the first support component through the fixed component; the luminescent filament unit includes a filament array, and the filament array is wound by at least one luminescent filament or Arrange or weave to form. The present invention uses independent and separated luminous line unit structures, and the above solution solves the shortcomings of the prior art. The present invention greatly reduces process complexity and equipment complexity, and the size of the final light-emitting or display device depends on the arrangement / weaving quantity of light-emitting filaments, and the size of the device can be conveniently expanded freely without limitation.

Description

technical field [0001] The invention belongs to a light-emitting structure or display device based on the principle of electroluminescence. Background technique [0002] As a terminal line device of information technology, flat panel light-emitting displays have been widely used in mobile phones, televisions, computers, and the like. For example, Chinese patent CN201010101273.7 provides a flexible matrix inorganic electroluminescent flat panel display, including a transparent plastic base layer, a stacked horizontal transparent conductive stripe layer sequentially arranged on the transparent plastic base layer, a light emitting layer, a dielectric layer, and a vertical layout The back electrode stripe layer, protective layer and plastic film. The transparent electrode on the display is connected to the conductive stripe layer, and the back electrode is connected to the back electrode stripe layer. Although the display of the above-mentioned structure solves the problem of ...

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Problems solved by technology

[0003] 1. The electrodes, electroluminescent materials, various dielectric layers and auxiliary layer structures in this patent are directly prepared on a whole flat substrate (glass or plastic substrate), which is an integral structure, and the size of the display depends directly on the size of the substrate , and the overall processing of large-area flat substrates has high requirements on equipment, environment, and processing technology, and the processing technology is also very complicated, so there are disadvantages such as difficulty in large-scale display, high equipment requirements, and high implementation costs.

[0004] 2. Electrodes, electroluminescent materials, various dielectric layers and auxiliary layer structures all adopt a parallel stacked structure on a flat substrate, which has poor electric field concentration, low luminous brightness and luminous efficiency

The high precision and difficulty of the process lead to high requirements for equipment and production environment, large investment, low yield rate and high cost.

[0006] 4. For displays using dispersed powder-type electroluminescent materials, the preparation of the luminescent layer requires paste printing or coating and sintering processes. Due to the limitation of thermal processing temperature, heat-resistant rigid substrates (such as glass) are required, which cannot be realized Flexible, difficult to enlarge the screen

[0007] 5. For displays using thin-film or thick-film electroluminescent material layers, the preparation of the light-emitting layer requires vacuum deposition or growth processes, which have high requirements for process environment and equipment, and have disadvantages such as large investment, low yield, and high cost.

[0008] 6. The electroluminescent material layer is a thin film, and the preparation of the luminescent layer requires the use of vacuum deposition or growth processes. In addition, the organic luminescent material is very sensitive to water and oxygen, and has strict requirements on the air permeability of the substrate material and sealing technology, which leads to The requirements for the production process environment and processing equipment are high, and there are disadvantages such as large investment, low yield rate, and high cost.

[0009] 7. When using organic light-emitting materials, when using flexible plastic substrates, it is difficult to ensure the air permeability and packaging quality in a comprehensive range, which will lead to rapid deterioration of materials, short life and low yield; when using low air permeability and easy sealing When the glass substrate is used, it is difficult to achieve flexibility

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