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US 2010/0148996 A1Published application
Light guide structure for a keyboard
AssigneeKinpo Electronics, Inc.
InventorChien-Lung Wang
Life of this patent
Estimating the term…
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AssigneeKinpo Electronics, Inc.
InventorChien-Lung Wang
Estimating the term…
A light guide structure for a keyboard. The light guide structure includes a transparent rubber sheet. Multiple resilient support sections are formed on the rubber sheet in alignment with press keys of the keyboard respectively. Multiple diffusive reflection units are disposed on a surface of the rubber sheet and circumferences of the resilient support sections. The diffusive reflection units are boss sections protruding from the surface of the rubber sheet or recessed sections formed on the surface of the rubber sheet. Each diffusive reflection unit has a surface coated with a light reflection layer for reflecting light. When the light is reflected by external components back to the surface of the rubber sheet, the light reflection layers of the diffusive reflection units that are boss sections or recessed sections will again effectively reflect the light to enhance backlight brightness of the press keys and peripheries thereof.
A light guide structure for a keyboard, at least comprising a transparent rubber sheet positioned between press keys of the keyboard and a circuit board, at least one raised resilient support section being disposed on the rubber sheet in alignment with a press key, a top side of the resilient support section being positioned right under a bottom face of the press key or in contact with the bottom face of the press key, diffusive reflection units being formed on a surface of the rubber sheet and distributed over a circumference of the resilient support section, each diffusive reflection unit having a surface coated with a light reflection layer.
A light guide structure for a keyboard, comprising:
Dependencies are inferred from the claim text.