Keyboard and key module thereof
AssigneesLite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
InventorYi-Wen Chen
Life of this patent
Estimating the term…
Abstract
A key module includes a keycap, an indicator light source, a first backlight source and a second backlight source. The keycap includes an indication area and a character area. The indicator light source is configured to emit an indicating light of a first color toward the indication area. The first backlight source is configured to emit a first backlight of the first color toward the character area. The second backlight source is configured to emit a second backlight of a second color toward the character area, wherein the second color is different from the first color. As a result, the key module could display the light of different colors based on different operations, thereby being distinguishable from the color of the light emitted by the adjacent key module.
Claims23
A keyboard, comprising:
- a first key module configured to selectively emit a first light having a first color and a second light having a second color different from the first color;
- a second key module disposed adjacent to the first key module and configured to emit light having the second color;
- two light sources;
- wherein the first key module comprises a keycap comprising a single character or symbol, and the first light having the first color and the second light having the second color respectively emitted by the two light sources travel through the same single character or symbol at different points of time.
A key module, comprises:
- a base plate, having a first side and a second side opposite to the first side;
- a circuit layer disposed on the first side of the base plate;
- a circuit board disposed on the second side of the base plate;
- a keycap disposed on the first side of the base plate and comprising an indication area and a character area, wherein the circuit layer is arranged between the base plate and the keycap;
- an indicator light source disposed on an upper surface of the circuit layer and configured to emit an indicating light of a first color toward the indication area;
- and
- a backlight source disposed on the circuit board and configured to emit a backlight of a second color toward the character area, wherein the second color is different from the first color.
A key module, comprises:
- a base plate, having a first side and a second side opposite to the first side;
- a circuit layer disposed on the first side of the base plate;
- a circuit board disposed on the second side of the base plate;
- a keycap comprising an indication area and a character area, wherein the indication area is smaller than the character area;
- a light guide plate;
- an indicator light source disposed on an upper surface of the circuit layer and configured to emit an indicating light having a first color;
- and
- a backlight source disposed on the circuit board and configured to emit a backlight having a second color different from the first color toward the light guide plate;
- wherein the character area displays the backlight having the second color, the indication area displays the indicating light having the first color at the same time.
Dependencies are inferred from the claim text.