Chicony Power Technology Co., Ltd.

Chen-Hao Chiu

Hsuan-Wei Ho

Chun-Ting Lin

Ting-Wei Chang

Cheng-Yi Chang

Tsung-Hsun Chen

Chun-Ming Huang

Syun-Yuan Chi

Chien-Hsun Kao

A backlight module includes a base layer having first, second, and third openings, first and second light-isolating sheets, first, second, and third light guide sheets, and first and second light-shielding sheets. The first light-isolating sheet is disposed above the base layer and has first and second light-isolating areas and a fourth opening. The first and second light guide sheets are disposed in the first and second light-isolating areas respectively. The first light-shielding sheet is disposed above the first light-isolating sheet and has first and second light-transmitting windows and a fifth opening. The third, fourth, and fifth openings are disposed correspondingly. The second light-isolating sheet is disposed above the first light-shielding sheet and has a third light-isolating area in which the third light guide sheet is disposed. The second light-shielding sheet is disposed above the second light-isolating sheet and has third, fourth, and fifth light-transmitting windows.

Backlight module

An illuminated touch module includes a base sheet, a light-shielding sheet, a light guide plate, a light-emitting element, and a cover plate. The base sheet is disposed on a circuit board and has a light reflection area. The light-shielding sheet is disposed above the base sheet and has a side surface and a notch recessed from the side surface. An opening of the notch is aligned with an edge of the base sheet. The light guide plate is embedded in the notch and located above the light reflection area. The light guide plate has a light guide pattern formed by microstructures and has a light incident surface. The light-emitting element is disposed on the circuit board and has a light outputting surface facing the light incident surface and the light guide pattern. The cover plate covers above the light guide plate and the light-shielding sheet.

Illuminated touch module having light guide plate

A backlight module includes a film, a light guide plate disposed under the film, and a circuit board disposed under the light guide plate and provided with a light-emitting unit. The film includes a single-key transparent area, a light-shielding area disposed around the single-key transparent area, and a side transparent area disposed adjacent to or along an edge of the film. The light guide plate has a first microstructure group and a through hole correspondingly disposed under the single-key transparent area, a second microstructure group correspondingly disposed under the side transparent area, and a light-transmitting area partially correspondingly disposed under the light-shielding area. The light-emitting unit is accommodated in the through hole. A number of microstructures or a light-emitting area of the second microstructure group is greater than a number of microstructures or a light emitting area of the first microstructure group.

A touchpad and a backlight module are provided. The backlight module includes a circuit board, a first light emitting element and a second light emitting element respectively located on two surfaces of the circuit board, a bottom layer, and a second light guide plate having a second microstructure, a middle layer having a light transmitting region and a first light guide plate having a first microstructure sequentially disposed on the bottom layer. A position of the second microstructure corresponds to the light transmitting region. An area of the light transmitting region of the middle layer is smaller than or equal to an area of the first microstructure. The first light emitting element corresponds to a side surface of the first light guide plate. The second light emitting element corresponds to a side surface of the second light guide plate.

Touchpad and backlight module thereof

A backlight module includes a light-shielding plate, a light guide plate, a first light-emitting element, and a second light-emitting element. The light-shielding plate has a first light transmissive portion. The light guide plate has a first light-emitting dotting area. The first light-emitting dotting area includes a plurality of first dots unevenly distributed within a range of the first light-emitting dotting area. The first light-emitting element and the second light-emitting element emit light toward the first light-emitting dotting area. The light guide plate has a light-emitting surface in a generally rectangular shape. The light guide plate has a first long axis direction extended parallel to a long side on the light-emitting surface. The first light-emitting element has a second long axis direction. An angle between the first long axis direction and the second long axis direction is an acute angle.

Backlight module and light guide module

A light-emitting touch panel includes a circuit board, a plurality of light-emitting elements, a shading plate and a cover plate. The light emitting element has a first height in a first direction. The shading plate has a plurality of spacing regions corresponding to the light emitting elements, respectively. A first width is provided between two partition walls of each spacing region in a second direction. Each partition wall has a second height in the first direction, and the second height is greater than the first height. The cover plate has a light-transmitting region, the light emitted by the light-emitting elements passes through the light-transmitting region, and a bright region is formed on the top surface of the cover plate away from the shading plate, wherein a second width of the bright region in the second direction is related to the second height and the first width.

Light-emitting touch panel

An illuminated trackpad includes a substrate, a light guide plate disposed under the substrate, a circuit board disposed under the light guide plate, and light-emitting elements disposed on the circuit board. The light guide plate includes light guide units and through holes. Each light guide unit is composed of light guide microstructures and substantially in the shape of a strip or a line. The through holes are respectively arranged on one side of the light guide units. The circuit board has a touch surface and a non-touch surface. The touch surface has a touch area on which sensing electrodes are disposed. The light-emitting elements are respectively accommodated in the through holes. After entering the light guide plate through inner walls of the through holes, the lights emitted by the light-emitting elements are guided upward through the light guide units to pass through the substrate and exit.

Illuminated trackpad

A backlight module includes a glass substrate, a light-outputting sheet, a light guide plate, and a reflective sheet. The light-outputting sheet is disposed under the glass substrate and has a light-outputting region and a light-shielding region. The light-outputting region is disposed corresponding to the glass substrate. The light-shielding region is disposed corresponding to an outer periphery of the glass substrate. The light guide plate is disposed under the light-outputting sheet and has a light guide region and a light mixing region. The light guide region is disposed corresponding to the light-outputting region. The light mixing region is configured to receive light of a light-emitting element and guide the light to the light guide region. The light leaves the light guide region and then sequentially propagates through the light-outputting region and the glass substrate. The reflective sheet is disposed under the light guide plate.

A backlight assembly includes a reflection sheet, a light-shielding sheet, two light-emitting elements, and a light guide plate. The reflection sheet is disposed on a circuit board and has two through holes. The light-shielding sheet is disposed on the reflection sheet and has a hollow portion having a closed contour. The light-emitting elements are disposed on the circuit board, respectively accommodated in the through holes, and located in the hollow portion. The light guide plate is embedded in the hollow portion and includes two light guide regions. Each of the light guide regions has a light mixing region and a light outputting region. A corresponding one of the light-emitting elements and the light outputting region are respectively located on opposite sides of the first light mixing region. The light-shielding sheet further has a light blocking portion disposed between the light guide regions.

Backlight assembly and touchpad device

A light-emitting device includes a main body, a light guide plate, and a flexible circuit board. The main body includes a light exit wall and a side wall connected and bent relative to each other. The light exit wall and the side wall together form a groove. The light guide plate has a light exit region and a light mixing region. Microstructures are disposed on the light exit region. At least a part of the light exit region is engaged in the groove. The flexible circuit board has a light-emitting unit. The light-emitting unit is configured to emit light toward a side surface of the light mixing region. The light enters the light guide plate from the side surface of the light mixing region and is totally reflected in the light mixing region, and then is guided to the light exit wall through the microstructures.

Light-emitting device

A light-emitting module includes a light-shielding sheet, a light guide plate, a light barrier, a circuit board, and first and second light-emitting elements. The light-shielding sheet includes a first pattern area and a second pattern area. The light guide plate is disposed under the light-shielding sheet and has a microstructure disposed corresponding to the second pattern area. The light barrier is disposed under the light guide plate and has first and second holes. The circuit board is disposed under the light barrier. The first light-emitting element is disposed on the circuit board, enters the first hole, and is configured to emit light toward a bottom surface of the light guide plate. The second light-emitting element is disposed on the circuit board, passes through the second hole, and is configured to emit light toward a side surface of the light guide plate.

Light-emitting module

A touch module includes a circuit board, a light emitting element, a light guide plate, and a reflector plate. The light emitting element is electrically connected to the circuit board, and the light emitting element has an upper light emitting surface. The light guide plate is arranged above the circuit board. The reflector plate is arranged above the light guide plate. The reflector plate includes a first surface facing the light guide plate. The first surface is provided with a light-transmitting region, a light-shielding region, and a light-reflecting region. The light-reflecting region is arranged corresponding to the light emitting element. An area of the light-shielding region is greater than an area of the light-reflecting region. The area of the light-reflecting region is greater than an area of the upper light emitting surface of the light emitting element.

Growing community of inventors

Taipei, Taiwan

Chen-Hao Chiu