KEY ASSEMBLY FOR ELECTRONIC DEVICE

摘要

A key assembly for an electronic device that includes a keycap defining a key that has a non-opaque portion to identify the key that is backlit. The assembly includes a light guide positioned in spaced relation to the keycap. An optical radiation source, such as top-fire light emitting diode, is mounted below the lower surface of the light guide. A mask is disposed on the top surface of the optical radiation source. The mask includes an aperture to allow light from the optical radiation source to pass into the light guide, and the mask blocks at least a portion of the light from the optical radiation source. The mask blocks a portion of the top surface of the optical radiation source that emits tinted light. The light guide is affixed atop the opaque mask such that it is nearly directly affixed to the optical radiation source.

主权项

1. A key assembly for an electronic device, the key assembly comprising:
an optical radiation source having a surface through which light is emitted; a light guide; a mask between the surface and the light guide blocking a portion of the light from entering the light guide; and an outer surface of the electronic device having a non-opaque portion that receives a part of the light that enters the light guide.