Back illuminated input device with selectively visible luminous patterns

摘要

The input device with luminous patterns includes an input interface and a backlight module. The backlight module includes a light source and a light guide plate. The input interface has a predetermined light shading rate and at least one pattern formed on the light guide plate. When the light source is turned off, the light passing through the light guide plate is too weak to show the pattern. When the light source is turned on, the luminous pattern is shown. One base plate of the input interface is made from a mixture of transparent plastic particles and light shading particles, and the at least one pattern is formed of the micro light guide structures.

主权项

1. An input device with luminous patterns, comprising:
an input interface comprising at least one substrate doped with a plurality of light shading particles to create a predetermined light opacity, and the predetermined light opacity is between 75% and 80%; and a backlight module, disposed under the input interface, wherein the backlight module comprises:
a light source; anda light guide plate, having at least one pattern disposed on an upper surface or a lower surface of the light guide plate, wherein when the light source is turned off, the at least one pattern is obscured due to the predetermined light opacity of the input interface.