Lite-on Technology Corporation

Lite-on Electronics (guangzhou) Limited

Hsin-Chih Liang

Yi-Wen Chen

A backlit keyboard includes key switches and a backlight module. The backlight module includes a light guide plate, a reflecting surface, and at least one light-emitting device. The light guide plate is provided with light-guiding dots disposed on a bottom surface thereof. A light-shielding layer disposed on the light guide plate has a light-shielding portion and a light-transmitting portion corresponding to at least one of the key switches. The reflecting surface faces the bottom surface of the light guide plate, and a pattern at least partially overlaps the light-shielding portion. A first light-emitting device and a second light-emitting device are disposed in an opening of the light guide plate, and the first light-emitting device and the second light-emitting device face respective sidewalls of the opening. The first light-emitting device is located underneath the light-shielding portion.

Keyboard backlight module and applications thereof

A keyboard backlight module includes a light guide plate, a reflector, a light-emitting device and a first microstructure. The light guide plate has an output surface, a light guide pattern and a bottom surface disposed on an opposite side of the output surface. The light guide pattern is arranged on at least one of the bottom surface and the output surface. The reflector has a reflecting surface facing the bottom surface. The light-emitting device is disposed on one side of the light guide plate and configured to provide an incident light to the reflecting surface. The first microstructure is disposed on the reflecting surface, at least partially overlaps with the light guide pattern, and is configured to transform the incident light into a first reflected light.

A key structure includes a bottom plate, a keycap, a lifting mechanism, a thin-film switch layer and a backlight module. The bottom plate has a through hole. The lifting mechanism is pivotally connected to the bottom plate and the keycap. The thin-film switch layer has a reflective structure corresponding to the through hole. The backlight module includes a light source and a reflective layer. The light source is configured to emit light towards the reflective structure. The reflective layer is disposed surrounding the light source to reflect a reflected light from the reflective structure to the thin-film switch layer.

Key structure

Keyboard backlight module with light-guide pattern, reflector pattern, and applications thereof

A light-emitting keyboard is provided, including a bracket with at least one opening, a keycap, a circuit layer, a light guide plate, and a composite light-emitting layer. The keycap is connected to the bracket via a support assembly. The circuit layer is disposed between the keycap and the bracket. The light guide plate is disposed under the bracket. The composite light-emitting layer disposed under the bracket has a light-shielding pattern. The composite light-emitting layer includes a light-transmitting substrate, a first circuit, a first light source, and a first passivation layer. The first circuit is disposed on one side of the light-transmitting substrate. The first light source is disposed on one side of the light-transmitting substrate and electrically connected to the first circuit. The first passivation layer covers the first circuit, and at least a portion of the first circuit is located between the first passivation layer and the light-transmitting substrate.

Light-emitting keyboard and backlight module

The disclosure provides an illuminating keyboard including a joystick module and a backlight module. The joystick module includes a base portion and a joystick mounted on the base portion. The joystick has a head portion with a first diameter and a neck portion with a second diameter, and the second diameter is smaller than the first diameter. The backlight module includes a light source, a light-guide plate, and a partial opaque diaphragm disposed above the light-guide plate. The partial opaque diaphragm has a body portion, an extending segment, and a first accommodation opening. The extending segment is disposed between the first accommodation opening and the body portion. The first accommodation opening having a third diameter smaller than the first diameter is surrounded by the extending segment. When the joystick module is inserted into the first accommodation opening, an end of the extending segment is firmly attached to the joystick module.

Growing community of inventors

Taipei, Taiwan

Hsin-Chih Liang