| abstract |
The present disclosure provides an implantable light source, comprising: a silicon substrate provided with a needle-shaped part and a power supply part connected to the needle-shaped part; and a thin film LED array including at least two thin film LEDs, the at least two thin film LEDs The LEDs are evenly and electrically connected on the needle-shaped portion of the silicon substrate, and the power supply portion is used to supply power to the thin-film LED array; wherein the silicon substrate sequentially includes a first lower insulating layer, a first lower insulating layer, a first A metal electrode layer and a first upper insulating layer; each of the thin film LEDs is epitaxially grown on a sapphire substrate, then peeled off and transferred to the silicon substrate, and is electrically connected to the silicon substrate. At the same time, the present disclosure also provides a preparation method of the above-mentioned implantable light source. |