Chicony Electronics Co., Ltd.

Chicony Power Technology Co., Ltd.

Pai-Hsiang Wang

Chia-Hsin Chen

Mitsuo Horiuchi

Ching-Cheng Tsai

Tsung-Min Chen

Kui-Chih Su

Yao-Hsuan Tsai

Pao-Chin Alan Chen

Chun-Tan Wu

Chun-Wei Lu

Hsien-Kuo Kao

The present disclosure discloses a backlight module, which includes a light guide plate and at least one light emitting unit. The light guide plate includes a first side and a second side opposite to each other, at least one accommodating portion and at least one light guide structure. The accommodating portion is adjacent to the first side and has an incident surface faced toward the second side. The light guide structure is disposed between the accommodating portion and the second side, and the light guide structure further comprises a first reflective surface and a second reflective surface. The first reflective surface is toward the first side and close to the accommodating portion. The second reflective surface is adjacent to the first reflective surface, and the second reflective surface is toward the first side and away from the accommodating portion. The light emitting unit is disposed in the accommodating portion.

Backlight module

The present disclosure discloses a keyboard including a base plate, membrane circuit board, a plurality of keys and a frame. The base plate includes a plurality of assembly areas and a first opening. The first opening is disposed between some said assembly areas. The membrane circuit board is disposed above the base plate. The membrane circuit board includes a second opening corresponding in position to the first opening, respectively. The frame is disposed above the base plate, and the membrane circuit board is disposed between the base plate and the frame. The frame blocks the first and second openings. The frame includes receiving portions corresponding in position to the assembly areas. The keys pass through the receiving portions and are fixed to the assembly areas of the base plate, respectively. Gaps between the frame and keys, the first and second openings jointly form an air current channel.

Keyboard

A keyswitch device includes a base plate, a membrane circuit board, a light source, and a keyswitch assembly. The membrane circuit board is disposed on the base plate and includes a reflective film layer, a transmissive film layer, and a light guide spacer. The reflective film layer is located on the base plate. The transmissive film layer is located over the reflective film layer. The light guide spacer has an accommodating space. The reflective film layer and the transmissive film layer are respectively located at opposite sides of the light guide spacer. The light source is disposed between the reflective film layer and the transmissive film layer and located in the accommodating space. The keyswitch assembly is disposed on the membrane circuit board.

Keyswitch device, keyboard, and membrane circuit board

A keyboard backlight module includes a backlight device including a reflective layer, a light shielding layer and a light guide layer sandwiched between the reflective layer and the light shielding layer and carrying a set of key switches on the top surface thereof, a light source mounted between the reflective layer and the light shielding layer, and high-refractive index scatter points prepared from a mixture containing a colored light-transmissive ink and high-refractive index particles at a predetermined ratio and mounted in the top side and/or bottom side of the light guide layer for refracting light toward the key switches to enhance illumination brightness.

Keyboard backlight module with improved light guide structure

A multicolor light-emitting computer input device includes a key switch module including a bottom plat having through holes, press members spaced above the bottom plate, and linking members respectively coupled between the bottom plate and the press members for moving the press members up and down, a circuit board arranged above the bottom plate and carrying light-emitting diodes in the through holes of the bottom plate and a light guide cap of a selected color capped around each light-emitting diode, elastomer members arranged the top side of the circuit board, and a light guide panel arranged at the bottom side of the bottom plate for receiving light from the light-emitting diodes and the respective light guide caps and guiding the received light toward the press members.

Growing community of inventors

Taipei, Taiwan

Pai-Hsiang Wang