Touch input device

A touch input device, comprising:

• a cover unit with a reflective coating layer formed on a surface thereof;
• a selective transmission unit provided on a rear surface of the cover unit and formed with light-transmitting holes indicative of their respective functions;
• and
• a touchpad module for detecting whether a user's body is touched onto the surface of the cover unit and receiving a detection signal, the touchpad module including:
• a substrate provided with a main chip and capable of detecting static electricity;
• and
• light emitting devices provided on a rear surface of the substrate to provide light to the light-transmitting holes, the light emitting devices providing the light-transmitting holes with light,
• wherein buttons are displayed on the cover unit using the light emitted through the light-transmitting holes,
• one or more lenses are installed through the substrate to provide the light-transmitting holes of the selective transmission unit with the light from the light emitting devices, the one or more lenses having a first surface coplanar with a front surface of the substrate and a rear surface extending beyond the rear surface of the substrate, and
• wherein the size and shape of each of the light-transmitting holes is substantially equal to the size and shape of a corresponding lens of the one or more lenses, each light-transmitting hole overlying a lens.