Invention Grant
US07880131B2 Invisible, light-transmissive display system 有权
隐形,透光显示系统

Invisible, light-transmissive display system
Abstract:
An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible, tapered, light-transmissive holes are penetrated in a light-transmissive pattern through at least a portion of the light resistant material using a laser beam having a focal width less than the smallest diameter of the tapered holes.
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