Illuminated keyboard
AssigneePrimax Electronics Ltd.
InventorChung-Yuan Chen
Life of this patent
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Abstract
An illuminated keyboard includes a key structure, a sensor board, a light source, a light guide plate, an adhesive layer, and a bottom plate. The sensor board includes a key wiring region for sensing a depressing action of the key structure and thereby generates a key signal. The light source is used for emitting a light beam to the light guide plate. The sensor board is made of a light-transmissible material. The sensor board is disposed over the light guide plate. At least one edge region of the sensor board is coated with a light-shading material or mixed with a light-shading material. Moreover, the at least one edge region of the sensor board is bent to enclose at least one edge of the light guide plate in order to prevent lateral light leakage of the illuminated keyboard.
Claims20
An illuminated keyboard, comprising:
- a key structure, wherein when said key structure is depressed, a key signal is correspondingly triggered;
- a sensor board comprising a key wiring region for sensing a depressing action of said key structure and thereby generates said key signal;
- a light source for emitting a light beam;
- and
- a light guide plate located at a side of said light source for transferring said light beam,
- wherein at least one edge region of said sensor board is bent to enclose at least one edge region of said light guide plate and thereby prevents lateral light leakage of said illuminated keyboard.
An illuminated keyboard, comprising:
- a sensor board comprising a key wiring region for sensing a touching action of a user and thereby generates a corresponding key signal;
- plural key patterns to be identified by said user, where when one of said key patterns is touched, said key signal is triggered;
- a light source for emitting a light beam;
- and
- a light guide plate located at a side of said light source for transferring said light beam,
- wherein at least one edge region of said sensor board is bent to enclose at least one edge region of said light guide plate and thereby prevents lateral light leakage of said illuminated keyboard.
An illuminated keyboard, comprising:
- a sensor board for sensing a touching action of a user and thereby generates a corresponding key signal;
- a first substrate comprising a first electrode pattern;
- a second substrate comprising a second electrode pattern, wherein said second substrate is made of a light-guiding material;
- a spacer layer or a partition plate arranged between said first electrode pattern and said second electrode pattern;
- and
- a light source for emitting a light beam to said second substrate,
- wherein at least one edge region of said first substrate is bent to enclose at least one edge region of said second substrate and thereby prevents lateral light leakage of said illuminated keyboard.
An illuminated keyboard, comprising:
- a sensor board for sensing a touching action of a user and thereby generates a corresponding key signal;
- a first substrate comprising a first electrode pattern;
- a second substrate comprising a second electrode pattern, wherein said second substrate is made of a light-guiding material;
- a partition plate arranged between said first substrate and said second substrate;
- and
- a light source for emitting a light beam to said second substrate,
- wherein at least one edge region of said partition plate is bent to enclose at least one edge region of said second substrate and thereby prevents lateral light leakage of said illuminated keyboard.
An illuminated keyboard, comprising:
- a sensor board for sensing a touching action of a user and thereby generates a corresponding key signal;
- a first substrate comprising a first electrode pattern;
- a second substrate comprising a second electrode pattern;
- a partition plate arranged between said first substrate and said second substrate, wherein said partition plate is made of a light-guiding material;
- and
- a light source for emitting a light beam to said partition plate,
- wherein at least one edge region of said first substrate is bent to enclose at least one edge region of said partition plate and thereby prevents lateral light leakage of said illuminated keyboard.
Dependencies are inferred from the claim text.