Lighting keyboard, backlight module and lighting board
AssigneeDarfon Electronics Corp.
InventorsHeng-Yi Huang, Hsin-Cheng Ho, Po-Yueh Chou
Life of this patent
Estimating the term…
Abstract
A lighting keyboard is provided with at least one keyswitch, a support plate and a backlight module. The keyswitch has a keycap and a switch under the keycap. The support plate connects beneath the keycap by a support mechanism. The backlight module has a lighting board configured underneath the support plate and corresponding to the keycap. The lighting board includes a board, a first reflective layer and a circuit layer. The circuit layer is disposed on the board and includes a concave-convex structure and circuit traces. The circuit traces electrically connects with a light emitting unit. The first reflective layer covers the concave-convex structure to form microstructure regions.
Claims20
A lighting keyboard comprising:
- at least one keyswitch, having a keycap and a switch under the keycap;
- a support plate, connecting beneath the keycap by a support mechanism;
- and
- a backlight module, having a lighting board configured underneath the support plate and corresponding to the keycap, the lighting board comprising:
- a board;
- a circuit layer disposed on the board, including circuit traces and a concave-convex structure;
- a first reflective layer, covering the circuit layer;
- and
- a light emitting unit, electrically connected with the circuit traces.
A backlight module configured corresponding to a keycap, the backlight module comprising:
- a lighting board comprising:
- a board;
- a circuit layer disposed on the board, comprising circuit traces and a concave-convex structure;
- a first reflective layer covering the circuit layer;
- and
- a light emitting unit, electrically connecting with the circuit traces;
- a light guide panel disposed on the lighting board, the light guide plate having a light guide hole accommodating the light emitting unit;
- and
- a shielding sheet disposed between the keycap and the light guide panel.
A lighting board configured corresponding to a keycap with an opaque area and a light-permeable outlet, the lighting board comprising:
- a board;
- a circuit layer disposed on the board, comprising circuit traces and a concave-convex structure;
- a first reflective layer covering the circuit layer;
- and
- a light emitting unit, electrically connecting with the circuit traces;
- wherein a plurality of microstructure regions are formed on a top surface of the first reflective layer at locations where the concave-convex structure is covered by the first reflective layer, and from a top view, the concave-convex structure overlaps with both the opaque area and the outlet of the keycap.
Dependencies are inferred from the claim text.