Keyboard
AssigneeGlobal Lighting Technology Inc.
InventorsGuo-Chen Lee, Jerry Wu, Yu-Jeng Lin, Tsung-Yung Hung, I-Ping Huang
Life of this patent
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Abstract
A keyboard comprises a key module and a backlight module in which the key module comprises a light-transmissive key part and an electric circuit substrate, and the backlight module comprises a light guide plate, a reflection unit and at least one light source. The backlight module is disposed between the key part and the electric circuit substrate. Thus, lights emitted by the light source are projected into the light guide plate from the lateral side of the light guide plate, and the lights are reflected by the reflection unit for directly passing through the light output surface of the light guide plate and the key part.
Claims13
A keyboard, comprising:
- a key module comprising:
- a key membrane having a space therein;
- a plurality of light-transmissive key caps disposed on the key membrane;
- and
- a reflection membrane received in the space, and formed with a plurality of through holes;
- a backlight module comprising:
- a light guide plate received in the space, disposed between the key membrane and the reflection membrane, and formed with penetrated holes respectively corresponding to one of the through holes;
- a plurality of elastic elements received in the space;
- at least one adhesive membrane received in the space, covering on a light output surface of the light guide plate being opposite to the reflection membrane, and respectively fixing each of the elastic elements in one of the penetrated holes;
- and
- an electric circuit substrate received in the space, disposed on a surface of the reflection membrane being opposite to the light guide plate, and formed with a plurality of electric switches respectively corresponding to one of the elastic elements.
Dependencies are inferred from the claim text.