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Title:
LIGHT-EMITTING DIODE FILAMENT AND LIGHT-EMITTING DIODE BULB
Document Type and Number:
WIPO Patent Application WO/2019/129034
Kind Code:
A1
Abstract:
A light-emitting diode filament comprises LED segments, conductor segments, at least two electrodes, and a light conversion layer. The invention is characterized in that the conductor segment is located between two adjacent LED segments. The electrodes are configured to correspond to the LED segments and are electrically connected to the LED segments. Two adjacent LED segments are electrically connected to each other via the conductor segment. The LED segment comprises at least two LED chips, and the LED chips are electrically connected to each other. The light conversion layer covers the LED segments, the conductor segments, and the electrodes, and exposes a part of each of the two electrodes. The light-emitting diode filament structure of the present invention is divided into the LED segments and the conductor segments. Therefore, stress is easily concentrated on the conductor segment when the light-emitting diode filament is bent, such that the probability of a conducting wire connecting adjacent LED chips in the LED segment breaking when bent is reduced, thereby improving overall quality of the light-emitting diode filament and a light-emitting diode bulb applying the same.

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Inventors:
JIANG TAO (CN)
XU WEIHONG (CN)
SAITO YUKIHIRO (CN)
UNAGIIKE HAYATO (CN)
XIONG AIMING (CN)
XU JUNFENG (CN)
CHEN YICHING (CN)
Application Number:
PCT/CN2018/123817
Publication Date:
July 04, 2019
Filing Date:
December 26, 2018
Export Citation:
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Assignee:
JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO LTD (CN)
International Classes:
F21K9/232; F21K9/20; H01L33/48
Foreign References:
CN107170733A2017-09-15
CN106468405A2017-03-01
CN206563190U2017-10-17
CN206771030U2017-12-19
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