公开(公告)号：US20230314690A1

公开(公告)日：2023-10-05

申请号：US18192848

申请日：2023-03-30

申请人： Darfon Electronics Corp.

发明人： HENG-YI HUANG ,  HSIN-CHENG HO ,  PO-YUEH CHOU

IPC分类号： F21V8/00 ,  H01H13/705 ,  H01H13/83

CPC分类号： G02B6/0035 ,  H01H13/705 ,  G02B6/0055 ,  H01H13/83 ,  G02B6/006 ,  H01H2219/062

摘要： A backlit-module-embedded illuminated keyswitch structure includes a baseplate, a mask film disposed below the baseplate and having a first coating configured to substantially reflect a light, a light guide sheet disposed at one side of the mask film and having a light source hole, a reflective layer disposed at one side of the light guide sheet opposite to the mask film and having an opening communicating with the light source hole, a top glue configured to connect the mask film and the light guide sheet around the light source hole, and a bottom glue configured to connect the light guide sheet and the reflective layer around the light source hole. The first coating covers the light source hole. In a stacked direction of the mask film, the light guide sheet, and the reflective layer, at least one of the top glue and the bottom glue overlaps the first coating.

公开(公告)号：US20240201430A1

公开(公告)日：2024-06-20

申请号：US18592794

申请日：2024-03-01

申请人： Darfon Electronics Corp.

发明人： HENG-YI HUANG ,  HSIN-CHENG HO ,  PO-YUEH CHOU

IPC分类号： F21V8/00 ,  H01H13/705 ,  H01H13/83

CPC分类号： G02B6/0035 ,  G02B6/0055 ,  H01H13/705 ,  H01H13/83 ,  G02B6/006 ,  H01H2219/062

摘要： A backlit-module-embedded illuminated keyswitch structure includes a baseplate, a mask film disposed below the baseplate and having a first coating configured to substantially reflect a light, a light guide sheet disposed at one side of the mask film and having a light source hole, a reflective layer disposed at one side of the light guide sheet opposite to the mask film and having an opening communicating with the light source hole, a top glue configured to connect the mask film and the light guide sheet around the light source hole, and a bottom glue configured to connect the light guide sheet and the reflective layer around the light source hole. The first coating covers the light source hole. In a stacked direction of the mask film, the light guide sheet, and the reflective layer, at least one of the top glue and the bottom glue overlaps the first coating.