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AssigneeZhongshan Mulinsen Electronics Co., Ltd.
InventorsBaoqing Pi, Jiwei Liu, Yunfeng Zhao, Xuezhao He, Yahui Xu
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The present invention provides a white coated LED filament and its production process and LED bulb, optimizing the white coated powder from being painted originally on internal surface of the glass shell to be painted on the surface of the filament, thus forms a coated white layer on the surface of the filament, and bonds whit the filaments for one-time molding, which simplifies the existing internal powder painting process of the glass shells, and reduces the cost of the finished products in terms of the usage and production of the clients, and also greatly improving the stability of the white coated filament bulbs, so that the color bleaching and its photoelectric parameters are in a manageable state, therefore the production process is become simply, the cost is lower, and improve the clients' usage scope, reduce the clients' usage cost, and can satisfy the existing market client's requirements for the product of the filaments bulbs with white coated.
A production process of white coated LED (Light Emitting Diode) filament, wherein the white coated LED filament comprises a filament body, the filament body comprises a substrate in the form of an elongated strip, a plurality of LED chips distributed in series on the substrate, and a package layer wrapping around the LED chips, the white coated LED filament further comprises a white coated layer coated on a surface of the package layer,
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