-
公开(公告)号：US11881363B2
公开(公告)日：2024-01-23
申请号：US18297020
申请日：2023-04-07
Applicant: DARFON ELECTRONICS CORP.
Inventor： Ying-Lan Liu , Hsin-Cheng Ho , Heng-Yi Huang
IPC: H01H13/83 , F21V8/00 , H01H13/705 , H01H13/02 , H01H3/12
CPC classification number: H01H13/83 , G02B6/0055 , H01H13/023 , H01H13/705 , H01H3/125
Abstract: A backlight module is configured to illuminate at least one key cap. The backlight module includes a light emitting unit, a light guide plate and a lighting board. The light guide plate has a light guide hole for accommodating the light emitting unit. The lighting board has a pair of pads connected to the light emitting unit respectively. The lighting board includes a first reflective layer surrounding the light emitting unit and at least partially covering the pair of pads. Each of the pair of pads has a plurality of branches and at least one hollow area. The at least one hollow area overlaps with at least one part of the light emitting unit.
-
公开(公告)号：US20240006113A1
公开(公告)日：2024-01-04
申请号：US18205564
申请日：2023-06-04
Applicant: DARFON ELECTRONICS CORP.
Inventor： Zuei-Chown Jou , Chih-Ho Liu , Jui-Wen Kuo , Chi-Ming Huang , Bo-Yu Huang , Yao-Tsung Chen
CPC classification number: H01F27/2828 , H01F27/292 , H01F27/327 , H01F41/10 , H01F41/0246
Abstract: An inductor includes a coil, a conductive lead frame, and a housing. The coil includes a coil body and a lead protruding from the coil body. The lead has a U-bend portion. The lead is electrically fixed onto the conductive lead frame. The housing encapsulates the coil and exposes the conductive lead frame. A method of manufacturing an inductor includes the following steps: providing a coil, providing a conductive lead frame, making a lead of the coil be electrically fixed onto the conductive lead frame, bending the lead to form a U-bend portion and make the main body of the coil close to a portion of the lead that connects with the conductive lead frame, and forming a housing to encapsulate the coil and expose the conductive lead frame.
-
公开(公告)号：US20230395320A1
公开(公告)日：2023-12-07
申请号：US18203055
申请日：2023-05-29
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chih-Ho Liu , Jui-Wen Kuo , Chi-Ming Huang , Bo-Yu Huang , Yao-Tsung Chen
Abstract: An integrated-type coupled inductor is applied to a related manufacturing method and includes a lead frame, a first coil, a second coil and a magnetic packing component. The lead frame has a first surface and a second surface opposite to each other and includes four pins. The first coil is disposed on the first surface and coupled to two of the four pins. The second coil is disposed on the second surface and coupled to other pins. The magnetic packing component covers the first coil and the second coil to expose parts of the four pins.
-
公开(公告)号：US20230377818A1
公开(公告)日：2023-11-23
申请号：US18353925
申请日：2023-07-18
Applicant: Darfon Electronics Corp.
Inventor： Heng-Yi HUANG , Hsin-Cheng HO
IPC: H01H13/83
CPC classification number: H01H13/83 , H01H2221/0702
Abstract: An illuminated keyswitch structure and an illuminating module thereof are provided. A base plate has an opening. The illuminating module includes a drive circuit board, having a face reflector and at least one dot reflector disposed thereon, a spacer adhered on the drive circuit board and having a through hole and an adhesive-less clearance fringe at least partially surrounding the through hole, a light-emitting part disposed on the drive circuit board and proximate to the face reflector and the dot reflector, and a translucent covering structure covering above the light-emitting part and including a reflective layer. The reflective layer reflects off light from the light-emitting part, and the face reflector and/or the at least one dot reflector reflect light to pass through the through hole of the spacer and then illuminate upward through the translucent covering structure and further through the opening of the base plate.
-
公开(公告)号：US20230375773A1
公开(公告)日：2023-11-23
申请号：US18131886
申请日：2023-04-07
Applicant: DARFON ELECTRONICS CORP.
Inventor： Heng-Yi Huang , Hsin-Cheng Ho , Po-Yueh Chou
CPC classification number: G02B6/006 , G02B6/0036 , H01H13/023 , H01H13/83
Abstract: A lighting keyboard includes a backlight module and two rows of keyswitches. The backlight module includes a lighting board and a shielding sheet. The lighting board includes plural illuminants aligned into two rows to correspond to the two rows of keyswitches. The shielding sheet includes plural first outlet windows and plural first block patterns disposed within the first outlet windows respectively and form a first row pattern collectively. Each of the first block patterns respectively corresponds to one of the illuminant. The shielding sheet includes at least one second outlet window and plural second block patterns respectively disposed within the at least one second outlet window and formed a second row pattern collectively. Each of the plural second block patterns respectively correspond to one of the plural illuminants. A first window length of the entire contour of the plural first outlet windows is as long as a second window length of the at least one second outlet window. And the first row pattern is not identical to the second row pattern, thereby providing consistent contour halos for the two rows of keyswitches.
-
Patent Agency Ranking
公开(公告)号：US20230358944A1
公开(公告)日：2023-11-09
申请号：US18221367
申请日：2023-07-12
Applicant: DARFON ELECTRONICS CORP.
Inventor： Ying-Lan Liu , Hsin-Cheng Ho , Heng-Yi Huang , Chao-Yu Chen
CPC classification number: G02B6/0055 , G02B6/009 , G06F3/0202
Abstract: A backlight module includes a lighting board, a light guide panel, a shielding sheet, and a protrusion structure. The lighting board includes two non-intersected traces, a plurality of microstructure regions and at least one illuminant unit. The illuminant unit is connected between the microstructure regions. The microstructure regions do not overlap with the two non-intersected traces. The light guide panel is disposed above the lighting board, and the shielding sheet is disposed above the light guide panel. The protrusion structure is formed on the shielding sheet, protrudes towards the lighting board, and is between the microstructure regions. The protrusion structure diffuses light of the illuminant unit at an early section of its light path to enter into the light guide panel for lateral transmission. The plural microstructure regions reflect and recycle the light at a following section of the light path to jointly enhance the uniformity of illuminating a keycap.
-
公开(公告)号：US20230350128A1
公开(公告)日：2023-11-02
申请号：US18296244
申请日：2023-04-05
Applicant: DARFON ELECTRONICS CORP.
Inventor： Chao-Yu CHEN
IPC: F21V8/00
CPC classification number: G02B6/0045 , G02B6/0068
Abstract: A backlight apparatus used in an illuminated keyboard includes a light-guiding plate, a circuit board and a plurality of light-emitting devices all electrically bonded on the circuit board. The light-guiding plate has a plurality of through holes which each corresponds to one of the light-emitting devices. The circuit board is disposed on a back face of the light-guiding plate such that each light-emitting device is disposed within the corresponding through hole, and that a light-emitting side face of each light-emitting device faces a light incident surface of the corresponding through hole. A specific through hole of the through holes has an optical adjustment surface on the light incident surface thereof, and the optical adjustment surface has a curved surface central axis coaxial with a central optical axis of the corresponding light-emitting device.
-
公开(公告)号：US20230343525A1
公开(公告)日：2023-10-26
申请号：US18297020
申请日：2023-04-07
Applicant: DARFON ELECTRONICS CORP.
Inventor： Ying-Lan Liu , Hsin-Cheng Ho , Heng-Yi Huang
IPC: H01H13/83 , H01H13/705 , F21V8/00 , H01H13/02 , H01H3/12
CPC classification number: H01H13/83 , H01H13/705 , G02B6/0055 , H01H13/023 , H01H3/125
Abstract: A backlight module is configured to illuminate at least one key cap. The backlight module includes a light emitting unit, a light guide plate and a lighting board. The light guide plate has a light guide hole for accommodating the light emitting unit. The lighting board has a pair of pads connected to the light emitting unit respectively. The lighting board includes a first reflective layer surrounding the light emitting unit and at least partially covering the pair of pads. Each of the pair of pads has a plurality of branches and at least one hollow area. The at least one hollow area overlaps with at least one part of the light emitting unit.
-
公开(公告)号：US20230341613A1
公开(公告)日：2023-10-26
申请号：US18343881
申请日：2023-06-29
Applicant: Darfon Electronics Corp.
Inventor： Chao-Yu CHEN
CPC classification number: G02B6/0055 , G02B6/0035 , H01H13/83 , H01H2219/062 , H01H2219/06 , H01H2219/044
Abstract: A backlit-module-embedded illuminated keyswitch structure includes a baseplate, a mask film disposed below the baseplate and having a first coating for substantially reflecting a light and a second coating for substantially blocking the light, a light guide sheet at one side of the mask film and having a light source hole, and a reflective layer at one side of the light guide sheet opposite to the mask film. The second coating includes a second main coating region and a plurality of second coating sub-regions, which extends outward from the second main coating region and is arranged along the periphery of the second main coating region to form a plurality of intermediary regions therebetween. The first coating and the second coating are disposed right above the light source hole. The first coating is at least partially located in the intermediary regions.
-
公开(公告)号：US20230327448A1
公开(公告)日：2023-10-12
申请号：US18131357
申请日：2023-04-05
Applicant: DARFON ELECTRONICS CORP.
Inventor： Wei-Lin Liu
CPC classification number: H02J3/32 , H02J2300/24 , H02J7/0063 , H02J3/381
Abstract: A power conversion system (PCS) includes an alternating current (AC) power port, a first direct current (DC) power port, a second DC power port, a high voltage capacitor, a first DC converter, a second DC converter, a power inverter, and a microcontroller unit. The microcontroller unit adjusts a frequency of an AC power output by the power conversion system based on a voltage difference across the high voltage capacitor of the power conversion system to switch the frequency of the AC power between different frequencies.
-
-
-
-
-
-
-
-
-
Search Results
478
records
(took 0.022 seconds)
