Backlight module and luminous keyboard using the same
AssigneesLite-On Electronics (Guangzhou) Limited, Lite-On Technology Corporation
InventorsShih-Wen Chiu, Yi-Wen Chen
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Abstract
A backlight module including a circuit layer, a light guide plate, a light-emitting component, an electronic component, a reflective layer, and an identifier is provided. The light guide plate includes an escape opening and a light-source opening. The light-emitting component is connected to the circuit layer. The electronic component is connected to the circuit layer. The reflective layer is disposed between the light guide plate and the circuit layer. The identifier is disposed on the reflective layer. A keyboard using this backlight module is also provided.
Claims20
A backlight module, comprising:
- a circuit layer;
- a light guide plate disposed on the the circuit layer, wherein the light guide plate comprises an escape opening and a light-source opening;
- a light-emitting component connected to the circuit layer at a position corresponding to the light-source opening;
- an electronic component connected to the circuit layer at a position corresponding to the escape opening, wherein the electronic component is different from the light-emitting component;
- a reflective layer with a first side and an opposite second side disposed between the light guide plate and the circuit layer, wherein the reflective layer comprises a reflective layer opening corresponding to the escape opening and exposing a surface of the electronic component, and the first side faces the light guide plate;
- and
- an identifier disposed on the second side of the reflective layer.
A keyboard, comprising:
- a circuit layer;
- a light guide plate disposed on the the circuit layer, wherein the light guide plate comprises an escape opening and a light-source opening;
- an electronic component disposed on the circuit layer, and at least a part of the electronic component being located in the escape opening;
- a reflective layer disposed between the circuit layer and the light guide plate, wherein the reflective layer comprises a reflective layer opening corresponding to the escape opening;
- a light-emitting component disposed in the light-source opening;
- a light-shielding layer disposed on the light guide plate;
- a base plate disposed on the light guide plate, wherein the base plate and the circuit layer are disposed on two opposite sides of the light guide plate;
- and
- a plurality of keycaps disposed on the base plate, wherein a portion of the light-shielding layer is attached to the reflective layer corresponding to a position between two adjacent keycaps.
A keyboard, comprising:
- a key switch structure;
- a light guide plate being disposed under the key switch structure and comprising an escape opening;
- a circuit layer disposed under the light guide plate;
- an electronic component coupled to the circuit layer, and at least a part of the electronic component being located in the escape opening;
- a light-emitting component coupled to the circuit layer and disposed corresponding to the light guide plate;
- a light-shielding layer disposed between the key switch structure and the light guide plate, wherein the light-shielding layer covers a portion of the electronic component;
- and
- a reflective layer disposed between the light guide plate and the circuit layer.
Dependencies are inferred from the claim text.