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1. WO2022044960 - DISPLAY DEVICE

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Publication Number WO/2022/044960
Publication Date 03.03.2022
International Application No. PCT/JP2021/030391
International Filing Date 19.08.2021
IPC
G09F 9/00 2006.1
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G02F 1/13 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/1333 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
G02F 1/1335 2006.1
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
CPC
G02F 1/13
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
G02F 1/1333
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
G02F 1/1335
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
G09F 9/00
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
9Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
Applicants
  • パナソニックＩＰマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP]/[JP]
Inventors
  • 山下　修司 YAMASHITA, Shuji
  • 佐々木　久昇 SASAKI, Hisanori
  • 持留　憲司 MOCHIDOME, Kenji
  • 寺脇　功二 TERAWAKI, Kouji
Agents
  • 新居　広守 NII, Hiromori
  • 寺谷　英作 TERATANI, Eisaku
  • 道坂　伸一 MICHISAKA, Shinichi
Priority Data
2020-14350227.08.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE
(JA) 表示装置
front page image
Abstract
(EN) A display device (2) comprises: a display panel (8); a dimming panel (10a) that is disposed facing the display panel (8) and that can be switched from one of a transmissive state and a reflective state to the other; a light-transmissive panel (12) that is disposed on the opposite side of the display panel (8) from the dimming panel (10a) so as to face the dimming panel (10a); a half-mirror (14) that is disposed facing the surface of the light-transmissive panel (12) on the dimming panel (10a) side and that has an aperture (40a) disposed facing the dimming panel (10a); and a control unit (50) that performs control to enable switching from one of an image display mode and a mirror mode to the other. The reflectance and the color of the half-mirror (14) are each substantially equal to the reflectance and the color of the dimming panel (10a) when the dimming panel (10a), which is held in a reflective state, is viewed through the aperture (40a).
(FR) L'invention concerne un dispositif d'affichage (2) qui comprend : un panneau d'affichage (8) ; un panneau de gradation (10a) qui est disposé face au panneau d'affichage (8) et qui peut être commuté entre un état transmissif et un état réfléchissant ; un panneau transmettant la lumière (12) qui est disposé sur le côté opposé du panneau d'affichage (8) par rapport au panneau de gradation (10a) de manière à faire face au panneau de gradation (10a) ; un demi-miroir (14) qui est disposé face à la surface du panneau transmettant la lumière (12) sur le côté panneau de gradation (10a) et qui comporte une ouverture (40a) disposée face au panneau de gradation (10a) ; et une unité de commande (50) qui effectue une commande pour permettre la commutation entre un mode d'affichage d'image et un mode miroir. La réflectance et la couleur du demi-miroir (14) sont chacune sensiblement égales à la réflectance et à la couleur du panneau de gradation (10a) lorsque le panneau de gradation (10a), qui est maintenu dans un état réfléchissant, est vu à travers l'ouverture (40a).
(JA) 表示装置（２）は、表示パネル（８）と、表示パネル（８）に対向して配置され、透過状態及び反射状態の一方から他方への切り替えが可能な調光パネル（１０ａ）と、調光パネル（１０ａ）に対向するように、調光パネル（１０ａ）に対して表示パネル（８）と反対側に配置された透光パネル（１２）と、透光パネル（１２）の調光パネル（１０ａ）側の面に対向して配置され、調光パネル（１０ａ）に対向して配置された開口部（４０ａ）を有するハーフミラー（１４）と、画像表示モード及びミラーモードの一方から他方に切り替えるように制御する制御部（５０）とを備える。ハーフミラー（１４）の反射率及び色はそれぞれ、開口部（４０ａ）を通して反射状態に保持された調光パネル（１０ａ）を見たときの調光パネル（１０ａ）の反射率及び色と略等しい。
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