Patent ID: 9443676
Filing Date: 2016-09-13
CPC Classification: H01H

Claim Text:
1. A light-emitting control knob, comprising: a knob body made of transparent or semitransparent synthetic resins which transmit light; a light-blocking metal plate formed of a metal plate stacked on a top surface of the knob body and configured to have light-emitting display windows formed therein, wherein the light-blocking metal plate is stacked on the top surface of the knob body by way of adhesion or inserted injection, and the light-emitting display windows are formed by stacking the light-blocking metal plate on the top surface of the knob body and then partially cutting the light-blocking metal plate by way of laser processing or CNC processing; wherein a light diffusing resin layer is stacked on the top surface of the knob body and is exposed through the light-emitting display windows; and wherein the light diffusion resin layer is made of synthetic resins where the synthetic resins include crystal beads or a light diffusion prism formed thereon.