The invention discloses a special-shaped transparent
heating element and a preparation method thereof, the special-shaped transparent
heating element comprises a base material and a
heating film arranged on the base material, the
heating film comprises a plurality of heating channels connected in parallel, and the lengths and the widths of the heating channels are equal, so that the heating of the in-plane area of the
heating film is uniform; the heating channels are formed by breaking lines, each heating channel comprises at least
two grid lines connected in parallel, the base material is made of a high-temperature-resistant transparent material, the grid lines form a
metal grid, the
line width of the grid lines is 3-30 microns, and the
metal grid is prepared through an imprinting process and forms an irregular
grid pattern; according to the special-shaped transparent heating piece, through the design of the equal-length and equal-width parallel heating channels and the multiple grid lines, in-plane uniform heating is achieved, and local overheating and cold areas are effectively avoided; single-point fracture does not affect the function, and the reliability is remarkably improved; the ultra-fine
metal grid ensures high
light transmission and no moire fringes, and is suitable for complex shapes, and the preparation process is simple and efficient.