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公开(公告)号：US11977250B2
公开(公告)日：2024-05-07
申请号：US18128235
申请日：2023-03-30
Applicant: DARFON ELECTRONICS CORP.
Inventor： Ying-Lan Liu , Hsin-Cheng Ho , Heng-Yi Huang
IPC: F21V8/00
CPC classification number: G02B6/0051
Abstract: A lighting keyboard includes a backlight module and at least one keyswitch. The backlight module includes a lighting substrate and a protruding structure. The lighting substrate includes two non-intersecting traces and a light emitting unit. The light emitting unit is connected between the two non-intersecting traces. A position of the protruding structure corresponds to a position of the light emitting unit and the protruding structure is located between the two non-intersecting traces. The at least one keyswitch is disposed on the backlight module.
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公开(公告)号：US11587743B2
公开(公告)日：2023-02-21
申请号：US17510597
申请日：2021-10-26
Applicant: DARFON ELECTRONICS CORP.
Inventor： Heng-Yi Huang , Hsin-Cheng Ho
IPC: H01H13/702 , G06F1/16 , H01H13/83 , G06F3/02
Abstract: A backlight apparatus includes a light-guiding plate, a light-shielding membrane, a light-reflecting sheet, a plurality of first translucent glue bodies, and a plurality of second translucent glue bodies. The light-guiding plate has a plurality of through holes. Each of the first translucent glue bodies corresponds to one of the through holes. Each first translucent glue body is placed on a front surface of the light-guiding plate, and surrounds a respective circumference of the corresponding through hole to bond the light-shielding membrane thereabove and the light-guiding plate therebelow. Each first translucent glue body has a respective breach. Each of the second translucent glue bodies corresponds to one of the first translucent glue bodies, is placed via at least one portion thereof in the breach of the corresponding first translucent glue body, and bonds the light-shielding membrane thereabove and the light-guiding plate therebelow.
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公开(公告)号：US11574778B2
公开(公告)日：2023-02-07
申请号：US17810879
申请日：2022-07-06
Applicant: Darfon Electronics Corp.
Inventor： Heng-Yi Huang , Hsin-Cheng Ho , Yuan-Bao Chen
Abstract: An illuminated keyswitch structure with an illuminating module includes a base plate, a drive circuit board under the base plate, a spacer between the drive circuit board and the base plate, and a light-emitting part on the circuit board. The spacer has a through hole communicating with an opening of the base plate in a vertical direction. The light-emitting part is located in the through hole, and falls within a projection of the opening in the vertical direction. The light-emitting part has a top surface that is lower than or equal to a bottom surface of the base plate in the vertical direction. The structure of the illuminated keyswitch structure around the light-emitting part can keep flat by the spacer. The spacer can prevent the light-emitting part from structurally entering the opening, avoiding structural interference between the light-emitting part and other components above the base plate.
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公开(公告)号：US10014133B2
公开(公告)日：2018-07-03
申请号：US15839821
申请日：2017-12-12
Applicant: DARFON ELECTRONICS CORP.
Inventor： Shao-Chi Chih , Hsin-Cheng Ho
IPC: H01H9/00 , H01H13/83 , H01H13/704
CPC classification number: H01H13/83 , H01H9/52 , H01H13/704 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2239/072
Abstract: A keyboard includes a base plate, key switches and a backlight module. The base plate has posts. The backlight module includes a masking plate, a light guiding plate, a light emitting unit, a reflective plate and an attaching layer. A plurality of upper through holes are formed on the masking plate. An upper attached area is defined by a periphery of each of the upper through holes. A plurality of penetrating holes are formed on the light guiding plate. A plurality of lower through holes are formed on the reflective plate. A lower attached area is defined by a periphery of each of the lower through holes. The attaching layer attaches the lower attached area with the upper attached area. The lower attached area is attached to the upper attached area via the corresponding penetrating hole, so as to block side walls of the corresponding penetrating hole.
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公开(公告)号：US20170053756A1
公开(公告)日：2017-02-23
申请号：US15190171
申请日：2016-06-22
Applicant: DARFON ELECTRONICS CORP.
Inventor： Shao-Chi Chih , Hsin-Cheng Ho
IPC: H01H13/83 , H01H13/704
CPC classification number: H01H13/83 , H01H9/52 , H01H13/704 , H01H2219/044 , H01H2219/06 , H01H2219/062 , H01H2239/072
Abstract: A backlight module includes a masking plate, a light guiding plate, a light emitting unit, a reflective plate and an attaching layer. A plurality of upper through holes are formed on the masking plate. An upper attached area is defined by a periphery of each of the upper through holes. The light guiding plate is disposed below the masking plate with a plurality of penetrating holes formed thereon. The light emitting unit is located on a lateral side of the light guiding plate and. The reflective plate is disposed below the light guiding plate. A plurality of lower through holes are formed on the reflective plate and located corresponding to the penetrating holes. A lower attached area is defined by a periphery of each of the penetrating holes. The lower attached area is attached to the upper attached area by the attaching layer via the penetrating hole.
Abstract translation: 背光模块包括掩模板，导光板，发光单元，反射板和附着层。 在掩模板上形成多个上通孔。 上连接区域由每个上通孔的周边限定。 导光板配置在遮蔽板的下方，在其上形成有多个贯通孔。 发光单元位于导光板的侧面。 反射板设置在导光板的下方。 多个下通孔形成在反射板上并对应于穿透孔定位。 下附着区域由每个穿透孔的周边限定。 下附着区域通过穿透孔通过附着层附接到上附接区域。
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Patent Agency Ranking
公开(公告)号：US20150364275A1
公开(公告)日：2015-12-17
申请号：US14830718
申请日：2015-08-19
Applicant: DARFON ELECTRONICS CORP.
Inventor： Hsin-Cheng Ho , Liang-Yu Yao
CPC classification number: H01H13/023 , G02B6/0055 , H01H3/125 , H01H13/16 , H01H2219/044 , H01H2219/06
Abstract: A backlight module is used in a lighting keyboard. The backlight module includes a light guiding plate and a masking. The masking is disposed on the light guiding plate. The masking includes a support layer, a cover layer and a reflective layer. The support layer includes a first surface and a second surface opposite to the first surface. The cover layer is disposed on the first surface. The cover layer includes a first opening. The reflective layer is disposed on the second surface and faces the light guiding plate for reflecting light emitted from the light guiding plate, so as to enhance lighting efficiency on the first opening. The reflective layer includes a second opening. A shape and a position of the second opening are respectively corresponding to a shape and a position of the first opening.
Abstract translation: 背光模块用于照明键盘。 背光模块包括导光板和掩模。 掩模设置在导光板上。 掩模包括支撑层，覆盖层和反射层。 支撑层包括第一表面和与第一表面相对的第二表面。 覆盖层设置在第一表面上。 覆盖层包括第一开口。 反射层设置在第二表面上并面向导光板，用于反射从导光板发射的光，以提高第一开口的照明效率。 反射层包括第二开口。 第二开口的形状和位置分别对应于第一开口的形状和位置。
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公开(公告)号：US20140126176A1
公开(公告)日：2014-05-08
申请号：US14065446
申请日：2013-10-29
Inventor： Liang-Yu Yao , Hsin-Cheng Ho , Hsuan-Wei Ho
IPC: F21V8/00
CPC classification number: G02B6/006 , G06F3/0208 , H01H13/83 , H01H2219/044 , H01H2219/056 , H01H2223/003 , H03K2217/9653
Abstract: A protective cover includes a light guide plate, a first flexible layer, a light masking layer and a light source. The light guide plate has a light scattering structure, an upper surface and a lower surface opposite to the upper surface, wherein the light scattering structure is formed in the light guide plate and adjacent to the lower surface. The first flexible layer is formed on the upper surface. The light masking layer is formed on the first flexible layer and has a light transmissible portion formed over the light scattering structure correspondingly. The light source is disposed neighboring to the light guide plate and light emitted by the light source is guided by the light guide plate and then emitted out of the light transmissible portion.
Abstract translation: 保护罩包括导光板，第一柔性层，遮光层和光源。 导光板具有光散射结构，与上表面相对的上表面和下表面，其中光散射结构形成在导光板中并且邻近下表面。 第一柔性层形成在上表面上。 遮光层形成在第一柔性层上，并且在光散射结构上相应地形成有透光部。 光源设置成与导光板相邻，由光源发射的光被导光板引导，然后从透光部分射出。
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公开(公告)号：US20240429005A1
公开(公告)日：2024-12-26
申请号：US18746069
申请日：2024-06-18
Applicant: Darfon Electronics Corp.
Inventor： Chao-Yu Chen , Hsin-Cheng Ho
Abstract: A touch lighting keyswitch can be changed to a touch lighting function key bar includes a circuit board, a first sheltering component, a first light guiding component, a second sheltering component and a second light guiding component. The circuit board has a first light unit and a second light unit respectively emitting a first illumination beam and a second illumination beam. The first sheltering component has a character hole. The first light guiding component is disposed between the circuit board and the first sheltering component and adapted to guide the first illumination beam passing through the character hole. The second sheltering component is disposed above the first sheltering component, and has an opening relevant to the character hole. The second light guiding component is disposed between the first sheltering component and the second sheltering component and adapted to guide the second illumination beam passing through the opening.
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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.
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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.
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