This invention relates to separately produce the complicated 3D curved structure and LED 3D curved
lead frame to meet the demand of the complicated curved surface illumination of illumination device. First of all, draw illumination circuit with banded structure of multilayer
lead frame on 3D illumination complicated curved surface, then spread these curved circuit into plane circuit, dismantle the banded structure of multilayer
lead frame of circuit into circuit pattern of single
layers, use process the prototype of circuit patterns of each layer with conductive
metal charge tape, and produce the prototype of banded structure of multilayer conductive frame through repeated accumulation of multi-disc charge tapes, and install the LED
chip on the installation seat to get LED flat lead frame, then flex the conductive
metal into LED 3D curved lead frame with jig and paste on the luminous curved surface, and
package them together with transparent material, for example, curved decorative lighting,
spherical display advertising board, etc.; this method offers more flexibility for structure and aesthetic design, and fully utilizes the
high heat dissipation capacity of main body of
metal part.