公开(公告)号：US20200264473A1

公开(公告)日：2020-08-20

申请号：US16648182

申请日：2018-06-25

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shigeru ARUGA ,  Ryouta NAKAYAMA ,  Chiharu MATSUKAWA

IPC: G02F1/1335 ,  G02F1/13357 ,  G02F1/1333 ,  F21V8/00

Abstract: An image display device includes: a light guide plate which includes an front face from which light from a light source exits; a heat sink that holds the light source portion and the light guide plate; a base plate which accommodates the light source portion, the light guide plate, and the heat sink; and a frame which is fixed to a wall portion of the base plate and holds the light guide plate from front of the light guide plate. The frame includes: a main body disposed inwardly of and along the wall portion; and a holder extending from the main body. The holder holds an end portion of the light guide plate from the front of the light guide plate, and the end portion is on a side of the end face from which light emitted from the light source portion enters.

公开(公告)号：US20230375869A1

公开(公告)日：2023-11-23

申请号：US18030937

申请日：2021-10-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsubasa KITAZUMI ,  Ryouji ONISHI ,  Takamitsu ISONO ,  Shigeru ARUGA ,  Kouji TERAWAKI

IPC: G02F1/1335 ,  G02F1/01 ,  G02F1/1347 ,  G02F1/137

CPC classification number: G02F1/133502 ,  G02F1/0136 ,  G02F1/13478 ,  G02F1/137 ,  A47G1/02

Abstract: A display device includes: a mirror body; a display component; and a mirror component disposed between the mirror body and the display component and switchable between a transmitting state in which external light and picture light are transmitted and a reflecting state in which the external light passing through the mirror body is reflected. The mirror body includes: a substrate transparent to light; an absorptive polarizer covering a first region not including the mirror component or the display component and a second region including the mirror component and the display component in plan view; and a reflective polarizer disposed on a rear face of the substrate and including an opening in the second region. The mirror component includes: a liquid crystal layer capable of changing a polarization direction of the external light; and a reflective polarizer disposed on a side of the liquid crystal layer adjacent to the display component.

公开(公告)号：US20190137828A1

公开(公告)日：2019-05-09

申请号：US16097287

申请日：2018-03-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigeru ARUGA ,  Masashi IMAI ,  Yoshitoshi OOKI

IPC: G02F1/1335 ,  G02F1/1333 ,  F21V8/00

Abstract: Image display apparatus includes liquid crystal cell, flat plate-shaped back frame, light guide plate, and a pair of support mechanisms. The pair of support mechanisms are fixed to back frame in positions at which light guide plate is clamped at both sides that intersect a first axis (X-axis). The pair of support mechanisms each includes movable component that supports light guide plate, body component that movably retains movable component, and elastic member that pushes movable component toward opposite support mechanism. Protrusion is disposed on movable component, and engagement section with which protrusion engages is disposed on light guide plate. Engagement section includes tab that is formed outwardly on an end surface of light guide plate, and notch disposed on tab and engages with protrusion.