公开(公告)号：US20190390839A1

公开(公告)日：2019-12-26

申请号：US16286534

申请日：2019-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOMONORI SUGIYAMA ,  KAZUHIKO KANEUCHI ,  HIDEAKI NAKAGAWA ,  MASAKI KONTANI

IPC: F21V3/10 ,  F21V3/02 ,  F21V13/12 ,  G06F3/041 ,  G09F13/08 ,  G09F13/22

Abstract: A display device including a protruding-plate includes the protruding-plate, a thin-film-layer, a transparent-base-material, a first-concealing-layer, a light-diffusion-layer, a light-color-toning-layer, and a second-concealing-layer. The first-concealing-layer is disposed closer to the protruding-plate than the second-concealing-layer and the light-color-toning-layer to the protruding-plate. The protruding-plate, the transparent-base-material, the thin-film-layer, and the second-concealing-layer include a greater thickness in this order. The second-concealing-layer, the first-concealing-layer, and the light-diffusion-layer have a same thickness. The light-diffusion-layer is thicker than the light-color-toning-layer. The transparent-base-material and the thin-film-layer have a same light transmittance. The thin-film-layer, the protruding-plate, the light-diffusion-layer, the light-color-toning-layer, the first-concealing-layer, and the second-concealing-layer have a higher light transmittance in this order.

公开(公告)号：US20190149152A1

公开(公告)日：2019-05-16

申请号：US16096283

申请日：2017-04-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MASAKI KONTANI ,  TAKESHI MASUTANI ,  SHINJI KADORIKU

IPC: H03K17/96 ,  F21V8/00 ,  G06F3/041 ,  G06F3/042

Abstract: An input device includes: a switch to be switched by being pressed; a plurality of light sources including a first light source and a second light source; and a light guide that guides light emitted from each of the plurality of light sources. The light guide includes: an emission part that emits the light; a first light guide leg that is coupled to the emission part and guides first light to the emission part; and a second light guide leg that is coupled to the emission part and guides second light to the emission part. The emission part includes a first design that illuminates by reflecting the first light, and a second design that illuminates by reflecting the second light. The first light guide leg includes a first reflection surface that reflects the first light. The second light guide leg includes a second reflection surface that reflects the second light.