Keypad light guide with lined apertures
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsTung-Ming Hsu, Chien-Min Chen, Ming-Fu Hsu
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Abstract
An exemplary process for making a light guide includes the steps of: providing a transparent base sheet; punching the base sheet to form an array of first apertures therein; coating a melted resin material in the first apertures and making the melted resin material fill up the first apertures; solidifying the melted resin material to form a plurality of resin blocks; punching the base sheet to form an array of second apertures in the resin blocks, the second apertures configured for illuminating the keys via at least one light source; and trimming the base sheet with the second apertures to form a light guide. A light guide made by the process is also provided.
Claims8
A light guide for illuminating keys of a keyboard or keypad of a portable electronic device, the light guide comprising:
- a base sheet;
- an array of apertures defined in the base sheet and corresponding to the keys of the portable electronic device, and being configured to allow the keys of the portable electronic device to be illuminated by at least one light source;
- and
- a resin layer formed on an inner surface of each aperture.
Dependencies are inferred from the claim text.