公开(公告)号：US10600591B2

公开(公告)日：2020-03-24

申请号：US16189053

申请日：2018-11-13

Applicant: Primax Electronics Ltd.

Inventor： Ying-Te Chiang ,  Lei-Lung Tsai ,  Yu-Ming Lin ,  Ding-Hsiang Pan

IPC: H01H13/83 ,  H01H13/705

Abstract: This application provides a luminous keyboard, including a plurality of keys, a plurality of keys, a light guide plate, and a reflector. Each of the keys includes a rubber dome, where the rubber dome is made of a translucent material doped with a plurality of light-diffusion particles, and when the rubber dome is irradiated by a light ray, a part of the light ray is diffused when traveling upward through the rubber dome, and the other part of the light ray is reflected downward by the rubber dome to the reflector, then, is reflected upward, and is diffused when passing by a plurality of light diffusion protrusions of the light guide plate, to be emitted outward through the keys.

公开(公告)号：US10340098B2

公开(公告)日：2019-07-02

申请号：US15906812

申请日：2018-02-27

Applicant: Primax Electronics Ltd.

Inventor： Ding-Hsiang Pan ,  Chin-Sung Pan ,  Ying-Te Chiang ,  Kun-I Yuan

IPC: H01H3/12 ,  H01H13/02

Abstract: A key structure, including a keycap, a movable mechanism, a support plate, a circuit board, and an indicator light-emitting element. The support plate and the movable mechanism pivotally connected to the support plate are disposed above the circuit board. The circuit board has a groove, and the indicator light-emitting element is embedded in the groove and is aligned with the keycap. The indicator light-emitting element emits light upward. The light may be directly emitted into the movable mechanism and is subsequently emitted outward through a light hole of the keycap.

公开(公告)号：US20190115171A1

公开(公告)日：2019-04-18

申请号：US15879692

申请日：2018-01-25

Applicant: Primax Electronics Ltd.

Inventor： Ying-Te Chiang ,  Lei-Lung Tsai ,  Kun-I Yuan

IPC: H01H13/83 ,  H01H13/702 ,  H01H9/18 ,  F21V8/00 ,  H01H3/12

Abstract: The present invention relates to a luminous keyboard, including a key, a support plate, a switch circuit board, a light guide plate, and a direct-type light emitting element capable of generating a beam. The support plate is located below the key, and the switch circuit board is disposed on the support plate. The light guide plate is located below the support plate and includes a concave structure, and the concave structure forms a reflective surface inside the light guide plate. The direct-type light emitting element is located below the concave structure. When the beam enters the light guide plate, the beam is reflected by the reflective surface to be fully reflected in the light guide plate, and the light guide plate guides the beam to be projected to a peripheral area of a key.

公开(公告)号：US20190148091A1

公开(公告)日：2019-05-16

申请号：US15907885

申请日：2018-02-28

Applicant: Primax Electronics Ltd.

Inventor： Chin-Sung Pan ,  Bo-An Chen ,  Ying-Te Chiang ,  Chien-Hung Liu ,  Chen-Hsuan Hsu

IPC: H01H13/83 ,  F21V8/00 ,  H01H13/7065

Abstract: A luminous keyboard includes at least one key, a switch circuit board, a supporting plate, a backlight module, a reflecting plate and a light-sheltering plate. The backlight module emits a light beam. The backlight module is arranged between the reflecting plate and the light-sheltering plate. A periphery region of the reflecting plate and a periphery region of the light-sheltering plate are thermally laminated or laser welded to define a sealed structure. Since the periphery region of the backlight module is sealed by the sealed structure, the light beam is not leaked out through the periphery region of the backlight module. The space occupied by the sealed structure is not very large. Consequently, the volume of the luminous keyboard is reduced.

公开(公告)号：US10242820B1

公开(公告)日：2019-03-26

申请号：US15865765

申请日：2018-01-09

Applicant: Primax Electronics Ltd.

Inventor： Ying-Te Chiang ,  Bo-An Chen ,  Chin-Sung Pan ,  Chen-Hsuan Hsu

IPC: H01H3/12 ,  H01H13/83 ,  H01H13/705

Abstract: A luminous keyboard includes plural keys, a membrane switch circuit member, a supporting plate and a backlight module. The membrane switch circuit member is located under the plural keys, and includes an upper wiring plate, a lower wiring plate and a separation plate. The supporting plate is located under the membrane switch circuit member and connected with the plural keys. The backlight module is located under the supporting plate to generate a light beam. A periphery region of at least one of the upper wiring plate, the lower wiring plate and the separation plate is bent to cover the supporting plate and the backlight module. Consequently, the light beam is not leaked out through the periphery region of the backlight module.

公开(公告)号：US20190027326A1

公开(公告)日：2019-01-24

申请号：US15813407

申请日：2017-11-15

Applicant: Primax Electronics Ltd.

Inventor： Lei-Lung Tsai ,  Ying-Te Chiang

IPC: H01H13/83 ,  H03K17/98 ,  H01H9/18 ,  H01H13/705

Abstract: A luminous keyboard includes a key structure, a supporting plate, a switch circuit board, a light guide plate, a top-view light-emitting element and a reflecting element. The supporting plate includes a supporting plate opening. The supporting plate is located under the key structure. The switch circuit board is located over the supporting plate. The light guide plate is located under the supporting plate, and includes a light guide plate opening. The top-view light-emitting element is inserted into the light guide plate opening. The reflecting element is arranged between the top-view light-emitting element and the key structure. After the light beam is transmitted through the supporting plate opening, the light beam is transmitted through the switch circuit board and reflected to the light guide plate by the reflecting element. Then, the light beam is guided to a periphery region of the key structure by the light guide plate.

公开(公告)号：US20190172662A1

公开(公告)日：2019-06-06

申请号：US16189053

申请日：2018-11-13

Applicant: Primax Electronics Ltd.

Inventor： Ying-Te Chiang ,  Lei-Lung Tsai ,  Yu-Ming Lin ,  Ding-Hsiang Pan

IPC: H01H13/83 ,  H01H13/705

Abstract: This application provides a luminous keyboard, including a plurality of keys, a plurality of keys, a light guide plate, and a reflector. Each of the keys includes a rubber dome, where the rubber dome is made of a translucent material doped with a plurality of light-diffusion particles, and when the rubber dome is irradiated by a light ray, a part of the light ray is diffused when traveling upward through the rubber dome, and the other part of the light ray is reflected downward by the rubber dome to the reflector, then, is reflected upward, and is diffused when passing by a plurality of light diffusion protrusions of the light guide plate, to be emitted outward through the keys.

公开(公告)号：US10312035B2

公开(公告)日：2019-06-04

申请号：US15879692

申请日：2018-01-25

Applicant: Primax Electronics Ltd.

Inventor： Ying-Te Chiang ,  Lei-Lung Tsai ,  Kun-I Yuan

IPC: H01H13/83 ,  H01H9/18 ,  H01H13/702 ,  F21V8/00 ,  H01H3/12

Abstract: The present invention relates to a luminous keyboard, including a key, a support plate, a switch circuit board, a light guide plate, and a direct-type light emitting element capable of generating a beam. The support plate is located below the key, and the switch circuit board is disposed on the support plate. The light guide plate is located below the support plate and includes a concave structure, and the concave structure forms a reflective surface inside the light guide plate. The direct-type light emitting element is located below the concave structure. When the beam enters the light guide plate, the beam is reflected by the reflective surface to be fully reflected in the light guide plate, and the light guide plate guides the beam to be projected to a peripheral area of a key.

公开(公告)号：US20190122835A1

公开(公告)日：2019-04-25

申请号：US15906812

申请日：2018-02-27

Applicant: Primax Electronics Ltd.

Inventor： Ding-Hsiang Pan ,  Chin-Sung Pan ,  Ying-Te Chiang ,  Kun-I Yuan

IPC: H01H13/02 ,  H01H3/12

CPC classification number: H01H13/023 ,  H01H3/125 ,  H01H13/83 ,  H01H2219/036 ,  H01H2219/058 ,  H01H2219/06 ,  H01H2221/07

Abstract: A key structure, including a keycap, a movable mechanism, a support plate, a circuit board, and an indicator light-emitting element. The support plate and the movable mechanism pivotally connected to the support plate are disposed above the circuit board. The circuit board has a groove, and the indicator light-emitting element is embedded in the groove and is aligned with the keycap. The indicator light-emitting element emits light upward. The light may be directly emitted into the movable mechanism and is subsequently emitted outward through a light hole of the keycap.

公开(公告)号：US10236142B2

公开(公告)日：2019-03-19

申请号：US15813407

申请日：2017-11-15

Applicant: Primax Electronics Ltd.

Inventor： Lei-Lung Tsai ,  Ying-Te Chiang

IPC: H01H13/83 ,  H01H9/18 ,  H01H3/12 ,  H01H13/705 ,  H03K17/98

Abstract: A luminous keyboard includes a key structure, a supporting plate, a switch circuit board, a light guide plate, a top-view light-emitting element and a reflecting element. The supporting plate includes a supporting plate opening. The supporting plate is located under the key structure. The switch circuit board is located over the supporting plate. The light guide plate is located under the supporting plate, and includes a light guide plate opening. The top-view light-emitting element is inserted into the light guide plate opening. The reflecting element is arranged between the top-view light-emitting element and the key structure. After the light beam is transmitted through the supporting plate opening, the light beam is transmitted through the switch circuit board and reflected to the light guide plate by the reflecting element. Then, the light beam is guided to a periphery region of the key structure by the light guide plate.