WO2003079318A1 - Mirror with built-in display - Google Patents
Mirror with built-in display Download PDFInfo
- Publication number
- WO2003079318A1 WO2003079318A1 PCT/IB2003/000640 IB0300640W WO03079318A1 WO 2003079318 A1 WO2003079318 A1 WO 2003079318A1 IB 0300640 W IB0300640 W IB 0300640W WO 03079318 A1 WO03079318 A1 WO 03079318A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mirror
- polarization
- light
- display device
- polarizing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices 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
- G02F1/01—Devices 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 for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/12—Signs, boards or panels, illuminated from behind the insignia using a transparent mirror or other light reflecting surface transparent to transmitted light whereby a sign, symbol, picture or other is visible only when illuminated
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices 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
- G02F1/01—Devices 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 for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices 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 for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
Definitions
- Figure 1 is a possible embodiment of a mirror device according to the invention.
- Figure 1 shows a mirror device 1 for viewing purposes having on a glass plate
- the mirror 4 a mirror 2 reflecting light, so a person 3 sees his image 3' (and further background, not shown).
- the mirror (plane) only reflects light of a first kind of polarization (direction), but passes light of a second kind of polarization (direction).
- the mirror is provided with a display device 5 at its non-viewing side (see also Figure 2).
- FIG. 4 shows the working principle of this mirror.
- the display 11 emits linear polarized light 15 of a first polarization direction 15', either directly or by having the light passing a polarizer or a linear polarizing mirror 16.
- a switchable half-lambda plate 12 is
- Incident light 20 reflects partly (one polarization direction, in this Example indicated as 20') on the mirror 2 (arrow 21). If the switchable half-lambda plate 12 is "off ( Figure 4a) or "inactive” the remaining part (other polarization direction, in this Example indicated as 20") passes said switchable half-lambda plate 12 and is reflected on the linear polarizing mirror 16. After reflection the reflected light having polarization direction 20" passes the switchable half-lambda plate 12 and the linear polarization selective mirror 2 again (arrow 22). As a result, substantially all incident light is then reflected.
- IPS Plane Switching
- FIG. 5 shows a further embodiment, which is very suitable to reduce reflections.
- the switchable optical element now is a switchable polarizing filter 14 provided at the viewing side of the polarizing mirror.
- the display 11 emits linear polarized light 15 of a first polarization direction 15 '.
- the polarization direction of the filter 14 and that of the 0 polarizing mirror 2 is the same (15'). So, independently of the state of the polarizing filter 14, the emitted light from the display stack is transmitted and not affected.
- Incident light 20 partly (one polarization direction, in this Example indicated as 20") passes the switchable polarizing filter 14. If the switchable polarizing filter 14 is "off ( Figure 5a) this part of the light, indicated as 20" is reflected on the linear polarization .5 selective mirror 2. After reflection (arrow 21) the reflected light having polarization direction 20" passes the switchable polarizing filter 14 again (arrow 22). The other part of the light (having polarization direction 20') is transmitted through the mirror 2 and ultimately absorbed in the bulk of the display. As a result, about half of the incident light is then reflected.
- the display is off, it is not totally black: it reflects still a minor part of the incident light, transmitted through the mirror.
- the background in the "non-display area" remains partly visible. Difference in color/absorption between display area and non-display area is visible if the display is off. 30 Therefore the non-display background preferably has the same color/absorption as the display itself, e.g. by using a paint or an adhesive foil.
- non-polarizing display 11 e.g. poly LED or (O)LED
- light from e.g. an (O)LED may be polarized or it may even be attractive to use other display effects to obtain the effect of a high contrast of displayed information with respect to reflected images in mirror applications.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/507,730 US7379243B2 (en) | 2002-03-18 | 2003-02-17 | Mirror with built-in display |
AU2003253709A AU2003253709A1 (en) | 2002-03-18 | 2003-02-17 | Mirror with built-in display |
JP2003577237A JP2005521086A (en) | 2002-03-18 | 2003-02-17 | Mirror with built-in display |
EP03744454A EP1488403A1 (en) | 2002-03-18 | 2003-02-17 | Mirror with built-in display |
KR10-2004-7014580A KR20040094811A (en) | 2002-03-18 | 2003-02-17 | Mirror with built-in display |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02076069 | 2002-03-18 | ||
EP02076069.0 | 2002-03-18 | ||
EP02079306 | 2002-10-17 | ||
EP02079306.3 | 2002-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003079318A1 true WO2003079318A1 (en) | 2003-09-25 |
Family
ID=28043265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/000640 WO2003079318A1 (en) | 2002-03-18 | 2003-02-17 | Mirror with built-in display |
Country Status (8)
Country | Link |
---|---|
US (1) | US7379243B2 (en) |
EP (1) | EP1488403A1 (en) |
JP (1) | JP2005521086A (en) |
KR (1) | KR20040094811A (en) |
CN (1) | CN1643558A (en) |
AU (1) | AU2003253709A1 (en) |
TW (1) | TWI282442B (en) |
WO (1) | WO2003079318A1 (en) |
Cited By (33)
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EP1376207A1 (en) * | 2002-06-24 | 2004-01-02 | Seiko Epson Corporation | Display device with display and mirror modes, and electronic device comprising the same |
WO2004074886A1 (en) | 2003-02-20 | 2004-09-02 | Koninklijke Philips Electronics N.V. | Mirror with built in display |
WO2004100534A1 (en) * | 2003-05-09 | 2004-11-18 | Koninklijke Philips Electronics N.V. | Mirror assembly with integrated display device |
WO2005045481A1 (en) * | 2003-11-11 | 2005-05-19 | Koninklijke Philips Electronics N.V. | Mirror with built-in display |
WO2005050267A1 (en) * | 2003-11-24 | 2005-06-02 | Koninklijke Philips Electronics N.V. | Mirror with built-in display |
WO2005071646A1 (en) * | 2004-01-15 | 2005-08-04 | Koninklijke Philips Electronics N.V. | Mirror with built-in display |
WO2005071645A1 (en) * | 2004-01-15 | 2005-08-04 | Koninklijke Philips Electronics N.V. | Mirror with built-in display |
WO2006020697A3 (en) * | 2004-08-10 | 2006-04-13 | Cardinal Cg Co | Lcd mirror system and method |
JP2007537475A (en) * | 2004-05-11 | 2007-12-20 | ティーピーオー、ホンコン、ホールディング、リミテッド | Display device with mirror function and portable information device |
US7379243B2 (en) | 2002-03-18 | 2008-05-27 | Koninklijke Philips Electronics N.V. | Mirror with built-in display |
JP2008535155A (en) * | 2005-03-23 | 2008-08-28 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Illumination state recording system and method |
US7502156B2 (en) | 2004-07-12 | 2009-03-10 | Gentex Corporation | Variable reflectance mirrors and windows |
US7656586B2 (en) * | 2004-10-26 | 2010-02-02 | Volkswagen Ag | Rearview mirror for a motor vehicle |
US7728927B2 (en) | 2003-09-09 | 2010-06-01 | Koninklijke Philips Electronics N.V. | Mirror with built-in display |
US7815326B2 (en) | 2002-06-06 | 2010-10-19 | Donnelly Corporation | Interior rearview mirror system |
US7826123B2 (en) | 2002-09-20 | 2010-11-02 | Donnelly Corporation | Vehicular interior electrochromic rearview mirror assembly |
US7832882B2 (en) | 2002-06-06 | 2010-11-16 | Donnelly Corporation | Information mirror system |
US7864399B2 (en) | 2002-09-20 | 2011-01-04 | Donnelly Corporation | Reflective mirror assembly |
US7888629B2 (en) | 1998-01-07 | 2011-02-15 | Donnelly Corporation | Vehicular accessory mounting system with a forwardly-viewing camera |
US7898398B2 (en) | 1997-08-25 | 2011-03-01 | Donnelly Corporation | Interior mirror system |
US7906756B2 (en) | 2002-05-03 | 2011-03-15 | Donnelly Corporation | Vehicle rearview mirror system |
US7914188B2 (en) | 1997-08-25 | 2011-03-29 | Donnelly Corporation | Interior rearview mirror system for a vehicle |
US7916009B2 (en) | 1998-01-07 | 2011-03-29 | Donnelly Corporation | Accessory mounting system suitable for use in a vehicle |
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WO2017105926A1 (en) | 2015-12-17 | 2017-06-22 | 3M Innovative Properties Company | Mirror including reflective backlit display |
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- 2003-02-17 WO PCT/IB2003/000640 patent/WO2003079318A1/en active Application Filing
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- 2003-02-17 CN CNA038062232A patent/CN1643558A/en active Pending
- 2003-02-17 EP EP03744454A patent/EP1488403A1/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
CN1643558A (en) | 2005-07-20 |
TWI282442B (en) | 2007-06-11 |
JP2005521086A (en) | 2005-07-14 |
US20050185278A1 (en) | 2005-08-25 |
AU2003253709A1 (en) | 2003-09-29 |
EP1488403A1 (en) | 2004-12-22 |
US7379243B2 (en) | 2008-05-27 |
TW200407563A (en) | 2004-05-16 |
KR20040094811A (en) | 2004-11-10 |
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