公开(公告)号：US12174475B2

公开(公告)日：2024-12-24

申请号：US18214785

申请日：2023-06-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroaki Sato ,  Takahide Fujimoto

IPC: G02F1/1333 ,  G02F1/1335

Abstract: A cover panel according to the present disclosure includes a first reflection suppressing film and a first polarizing plate. The first polarizing plate is arranged between the first reflection suppressing film and a liquid crystal panel. The first polarizing plate polarizes light. The cover panel further includes at least one of a louver layer and a decorative layer. The louver layer includes light transmitting members and light absorbing members repeatedly arranged between the first reflection suppressing film and the first polarizing plate. The light transmitting members transmits light. The light absorbing members absorbs light. The decorative layer has a pattern. The cover panel is arranged to be separated from a liquid crystal panel.

公开(公告)号：US10942310B2

公开(公告)日：2021-03-09

申请号：US16657003

申请日：2019-10-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiharu Ooishi ,  Hiroaki Sato

IPC: F21V8/00 ,  G02F1/13357 ,  B60R1/00

Abstract: An on-board display device installable in a vehicle cabin of a vehicle includes a liquid crystal panel and a light source. The liquid crystal panel displays an image of an outside of the vehicle, the image having been captured by a camera. The light source illuminates the liquid crystal panel. A direction of maximum luminance of the light source is a direction passing through an inside of an eye range preset in the vehicle. An equi-luminance line has a shape longer in a second direction that intersects a first direction than in the first direction in a luminance distribution map that represents luminance of the light source in each direction represented by a polar angle and an azimuth angle. The second direction and a longitudinal direction of an aggregate of points which represent polar angles and azimuth angles of tangential lines of the eye range, the tangential lines passing through the center of the liquid crystal panel, on the luminance distribution map are inclined to a same side with respect to a longitudinal direction of the liquid crystal panel.

公开(公告)号：US12298625B2

公开(公告)日：2025-05-13

申请号：US17979557

申请日：2022-11-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroaki Sato

IPC: G02F1/13363 ,  B60R1/12 ,  C08J5/18 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1347 ,  G02F1/139

Abstract: An electronic mirror device includes: a liquid crystal panel that displays an image; a linearly reflective polarizing layer that transmits a polarization component of incident light in a first direction and reflects a polarization component of the incident light in a second direction different from the first direction; a glass that transmits the incident light; and a PET film bonded to the glass. The linearly reflective polarizing layer is disposed between the liquid crystal panel and the PET film. The PET film contains polyethylene terephthalate and has a retardation value in a range of 2000 nm or more and 4000 nm or less. An angle between a slow axis of the PET film and a polarization reflection axis of the linearly reflective polarizing layer is 30 degrees or more and 60 degrees or less.