US 12,446,169 B2
Display device, input device, and front cover member
Masaki Kontani, Osaka (JP); and Takeshi Masutani, Kanagawa (JP)
Assigned to Panasonic Automotive Systems Co., Ltd., Kanagawa (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Nov. 2, 2022, as Appl. No. 18/052,176.
Claims priority of application No. 2021-209327 (JP), filed on Dec. 23, 2021; and application No. 2022-074459 (JP), filed on Apr. 28, 2022.
Prior Publication US 2023/0292453 A1, Sep. 14, 2023
Int. Cl. H05K 5/02 (2006.01); G06F 3/01 (2006.01); G06F 3/044 (2006.01); H05K 5/03 (2006.01)
CPC H05K 5/0217 (2013.01) [G06F 3/016 (2013.01); G06F 3/044 (2013.01); H05K 5/03 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a front cover that is optically transmissive;
a design portion that is optically transmissive and is arranged on a front surface side or a back surface side of the front cover;
a cushion layer that is optically transmissive and is arranged on the back surface side of the front cover; and
a light source that is arranged on a back surface side of the cushion layer,
wherein the cushion layer includes a plurality of recessed portions each of which is, in a cross-sectional view taken along a plane parallel to a stacking direction of the front cover and the design portion, in a projecting shape in the stacking direction and is in a recessed shape on a back side of the projecting shape,
pyramidal or conical spaces are formed by the recessed shape on the back side of the projecting shape of the plurality of recessed portions,
the plurality of recessed portions are spaced,
the cushion layer includes a connection portion that connects adjacent recessed portions among the plurality of recessed portions, and
a light-blocking sheet is arranged between the adjacent recessed portions.