公开(公告)号：US20220035229A1

公开(公告)日：2022-02-03

申请号：US17386217

申请日：2021-07-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Manabu CHIKAYAMA ,  Hiroyuki TERAWAKI ,  Kiyoko TSUJI

IPC: G03B21/16 ,  G03B21/28 ,  G03B21/14 ,  H04N9/31 ,  G02B27/14 ,  G09G3/00

Abstract: A projection image display device includes: an optical element that separates incident light into a first color light beam and a second color light beam, synthesizes the first color light beam and the second color light beam to generate synthetic light, and emits the synthetic light; a first display panel that reflects and modulates the first color light beam; a second display panel that reflects and modulates the second color light beam; a first heat dissipator that dissipates heat of the first display panel; a second heat dissipator that dissipates heat of the second display panel; a light shielding portion that blocks a part of the second color light beam reflected by the second display panel from traveling toward the first display panel; a light shield heat dissipator that dissipates heat of the light shielding portion; and a container. The second heat dissipator is disposed outside the container.

公开(公告)号：US20230189473A1

公开(公告)日：2023-06-15

申请号：US18107824

申请日：2023-02-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki TERAWAKI ,  Manabu CHIKAYAMA

IPC: H05K7/20 ,  G03B21/16 ,  F21V29/60

CPC classification number: H05K7/20154 ,  H05K7/20418 ,  G03B21/16 ,  F21V29/60

Abstract: Provided is a cooling device including: a container that is sealed and accommodates a first heating element; a first radiator disposed outside the container; a first air blower that blows wind to the first radiator; and a heat dissipator that is disposed outside the container to receive the wind from the first air blower and dissipates heat of the first heating element.