EP1510995A2 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

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Publication number
EP1510995A2
EP1510995A2 EP04103451A EP04103451A EP1510995A2 EP 1510995 A2 EP1510995 A2 EP 1510995A2 EP 04103451 A EP04103451 A EP 04103451A EP 04103451 A EP04103451 A EP 04103451A EP 1510995 A2 EP1510995 A2 EP 1510995A2
Authority
EP
European Patent Office
Prior art keywords
display
display device
filter
displayed
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04103451A
Other languages
German (de)
English (en)
Other versions
EP1510995B1 (fr
EP1510995A3 (fr
Inventor
Roland Germer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1510995A2 publication Critical patent/EP1510995A2/fr
Publication of EP1510995A3 publication Critical patent/EP1510995A3/fr
Application granted granted Critical
Publication of EP1510995B1 publication Critical patent/EP1510995B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F21/00—Mobile visual advertising
    • G09F21/04—Mobile visual advertising by land vehicles
    • G09F21/049—Mobile visual advertising by land vehicles giving information to passengers inside the vehicles
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

Definitions

  • the invention relates to a display device with a display, which display at least temporarily at least partially is transparent switchable and in this way on the from a viewer behind the display device located Background in the transparent area the display shows.
  • Display devices of the aforementioned type sometimes find Application for articles of the consumer goods industry, eg. B. at electronic grandfather clocks, which by means of this arrangement have a special design.
  • a poor readability of such Ads result.
  • the ad on the transparent display for a good readability designed in strong ambient light by, for example black numbers on the otherwise transparent display field can be generated, the motor vehicle driver in a Driving in an environment of weak extraneous light, for example when driving through a tunnel, the ad is not read more.
  • a display device with one at least partially and at times to create transparent display, which is also changing Light is easy to read.
  • the object is achieved in that the display at least partially a switchable first filter which is between a substantially diffuse, at least partial transmission and one essentially transparent at least partial transmission back and forth is switchable.
  • the possibility of diffuse transmission eliminated the disturbing influence of changing ambient light conditions on the readability of the display as needed.
  • homogeneous luminous background are generated on which the information to be conveyed is displayed.
  • Increases the Brightness of the ambient light will be equally beneficial also the homogeneous glowing background brighter.
  • the Contrast ratios remain due to the diffuse scattering the backlight remains highly consistent despite changing light conditions. For an operation in the dark or at night, when brightness variations of the background less strong, it is appropriate to the first To operate filters substantially transparent and optionally in addition to illuminate.
  • the first filter is a polymer-dispersed liquid crystal cell or a polymer dispersed liquid crystal display (PDLCD).
  • PDLCD polymer-dispersed liquid crystal cell or a polymer dispersed liquid crystal display (PDLCD).
  • a PDLCD is extremely easy to read because it does not require a polarizing filter and therefore especially bright.
  • PDLCD's are because of it's one high accuracy in the thickness of the liquid crystal dispersion layer not needed, compared to other known Display devices are relatively inexpensive produced.
  • the PDLCD in the display device according to the invention designed to be controlled matrix, so that the information to be displayed directly on this can.
  • the PDLCD can also be controlled Have segments, by means of which symbols can be displayed are, for example, in the style of a 7-segment display.
  • the display device according to the invention When using the display device according to the invention in one Motor vehicle as an information system it makes sense when the display device is arranged so that from the outside incoming ambient light pass through and from the viewer can be perceived and the viewer of the him from behind the display device located landscape image on request in the transparent areas recognize the ad. Should just the landscape be perceived as disturbing, the readability means switching to the diffusely scattering mode of the first Filters are improved.
  • a second filter is arranged, which at least partially between a first state in which he is essentially transmissive is and a second state in which he is essentially is not transmissive, is switchable back and forth.
  • the switchability of the first filter is also in the Switchability of the second filter not only the purely binary Setting two different states makes sense but also prefers a gradual adjustment of transparency or the scattering effect in the first filter and the transmission at the second filter. In this way can always be optimal Adaptation to the environmental situation and the user can depending on his preference, for example by means of a controller, desired brightness and scattering effects each one more or less sharp Provide contrast.
  • an automatic Adjustment of the scattering effect and the brightness the ambient light is preferred.
  • the second filter is a liquid crystal cell (LCD), in particular as a positive LCD.
  • LCD liquid crystal cell
  • the second filter is in the first state not just transmissive but essentially is transparent. If necessary, this can be the background through the display.
  • the display device at least one sensor and a controller, the sensor is the ambient brightness measures and the result of the measurement to the controller the display device is transmitted.
  • the control of Indicator accordingly fits the scattering effect of first filter and the transmission of the second filter in areas on the ambient light conditions and the displayed Information.
  • the invention to solve the problem Method for operating such a display device, in which the ambient brightness is measured and at Exceeding a certain brightness of the first filter is essentially switched to diffuse and on a display the display device to be displayed by means of information a viewing direction in series with the first filter arranged second filter, which at least partially between a substantially transmissive and a substantially Non-transmissive state switchable back and forth is and by means of switching these areas to be displayed Information is displayed to be displayed.
  • This kind of Control helps the display device according to the invention Tasks in changing light conditions to a excellent readability.
  • the readability is improved in the dark, when falling below the measured ambient brightness under a certain brightness the second filter essentially transmissive or transparent is switched and on the display information to be displayed by means of the first filter, which partially to display the displayed Information is displayed.
  • the lighting as previously described, means a transparent backlighting of the display or a laterally incident in the first filter light source appropriate.
  • FIG. 1 In the illustration of Figure 1 is a display device according to the invention 1 provided with the reference numeral 1 and in a motor vehicle 2 installed.
  • a motor vehicle 2 leading Viewer 3 of the display device 1 takes on the Display 4 the information shown in detail extracts 5 true.
  • the information 5 is the display the current driving speed of the motor vehicle 2, the display 4 due to its transparency in the background recognize the display 4 located landscape image 6 leaves.
  • FIG. 2 shows a simple design of an inventive Display device 1 schematically.
  • the display 4 of the display device 1 consists essentially of a first Filter 10 and a second filter 12, wherein the first filter 10 as a polymer disperse display (PDLCD) and the second filter 12 is formed as a liquid crystal display 13.
  • the polymer-dispersed liquid crystal display 11 can be considered change the transparency or the scattering effect in such a way that, for example, a complete transparency adjustable is, in which the landscape image 6 by means of Ambient light 7 can be clearly seen by the display 4 or that, for example, with completely diffuse scattering the display 54, except for any information presented as homogeneously illuminated by the ambient light 7 display area appears.
  • the illustrated in Figure 3 training an inventive Display device 1 has in addition to the first filter 10 and the viewing direction following second filter 12 a transparent, areal backlight 14 on, by means of which in the dark by means of the polymer-dispersed liquid crystal display 11 trained first Filter or designed as a liquid crystal display 13 second filter 12 information shown to the viewer 5 3 can be displayed.
  • the illustrated in Figure 4 embodiment of an inventive Display device 1 provides that by means of a side arranged illumination 15 due to the matrix Control of the first filter 10 or the second filter 12, which is used as polymer dispersed liquid crystal display 11, or are formed as a liquid crystal display 13, shown Information 5 the viewer 3 brought to the display become.
  • the essentially parallel beam path of the illumination 15 is driven in to display the information 5 Scattered areas and in this way in the eye the viewer 3 steered. Unscattered light of the lighting 15 does not reach the eye of the observer 3.
  • FIG. 5 shows an operation of the display device according to the invention 1 according to the inventive method for Control of the display device 1 both in day mode 21st as synonymous in the night mode 22 synoptic.
  • the illustrated display device 1 essentially comprises in an order from the viewer 3 of a positive liquid crystal display 23, a polymer dispersed liquid crystal display 24 and a transparently formed backlight 25.
  • the display device 1 comprises a controller 26, which in cooperation with a sensor 27 for measuring the Ambient brightness of the control of the display 4 is used.
  • the controller 26 shuts off the measured brightness of the ambient light 7 the Backlight 25 off. For the most part unattenuated The incident ambient light 7 penetrates the backlight 25 and hits the first filter 10 or the Polymer Dispersive Liquid Crystal Display 11, available from the Control 26 is switched to the diffuse-scattering mode. Of the first filter 10 diffused scattered meets the transmitted Light on the positive liquid crystal display 23, the from the controller 26, the matrix control commands to graphic representation of a symbol 30 has received.
  • the Symbol 30 shows the viewer 3 on the display 4 of Display device 1 according to the invention as a dark representation against a light background 31.
  • controller 26 shuts off the measured by the sensor 27 darkness the transparently formed backlight 25.
  • the light emitted from the backlight 25 passes the first filter 10, which of the controller 26 matrix segmented graphic commands for representing a symbol 30 receives.
  • the area of representation of the symbol 30 of the Polymer Dispersive Liquid Crystal Displays 24 is due to the Control commands transmissive switched transparent and the area of the background 31 transmissive diffusely scattering.
  • the from the polymer dispersed liquid crystal display 24 Light hits the positive liquid crystal display 23, which is transmissively transparent by the controller 26 is, so that the viewer 3 in the display 4 a Appears representation, which has a bright icon 30 and one darker due to diffuse scattering Background 31.
EP04103451A 2003-08-28 2004-07-20 Dispositif d'affichage Expired - Fee Related EP1510995B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10340028 2003-08-28
DE10340028A DE10340028B4 (de) 2003-08-28 2003-08-28 Anzeigevorrichtung

Publications (3)

Publication Number Publication Date
EP1510995A2 true EP1510995A2 (fr) 2005-03-02
EP1510995A3 EP1510995A3 (fr) 2006-03-29
EP1510995B1 EP1510995B1 (fr) 2009-02-25

Family

ID=34089271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04103451A Expired - Fee Related EP1510995B1 (fr) 2003-08-28 2004-07-20 Dispositif d'affichage

Country Status (2)

Country Link
EP (1) EP1510995B1 (fr)
DE (2) DE10340028B4 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008801U1 (de) 2010-10-13 2011-02-10 Loewe Opta Gmbh Anzeige mit steuerbarer Transparenz
DE102010038159B4 (de) 2010-10-13 2013-11-28 Loewe Opta Gmbh Anzeige mit steuerbarer Transparenz
DE102010055144A1 (de) * 2010-12-18 2012-06-21 Volkswagen Ag Bedienvorrichtung mit freiprogrammierbarer Anzeigefläche und Verdeckmitteln sowie Verfahren zum Steuern derselben
DE102013100338B4 (de) * 2013-01-14 2015-05-07 LOEWE Technologies GmbH Anzeigevorrichtung mit steuerbarer Transparenz
DE102018206656B4 (de) * 2018-04-30 2024-03-21 Audi Ag Anzeigevorrichtung für ein Kraftfahrzeug und Kraftfahrzeug
CN114245887A (zh) 2019-07-15 2022-03-25 上海延锋金桥汽车饰件系统有限公司 车辆内部部件
DE102020126083A1 (de) 2019-10-28 2021-04-29 Audi Aktiengesellschaft Anzeigevorrichtung mit einer transparenten Pixelmatrix zum Anzeigen von auswählbaren graphischen Objekten sowie Kraftfahrzeug und Betriebsverfahren für die Anzeigevorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347293A (en) * 1988-09-09 1994-09-13 Robert Bosch Gmbh Display device for motor vehicles
EP0778440A2 (fr) * 1995-12-05 1997-06-11 Matsushita Electric Industrial Co., Ltd. Dispositif d'éclairage arrière et dispositif d'affichage couleur
JPH1038619A (ja) * 1996-07-30 1998-02-13 Denso Corp 車両用表示装置
WO1999019167A1 (fr) * 1997-10-10 1999-04-22 Robert Bosch Gmbh Dispositif de commande de la luminance de l'eclairage des tableaux et instruments de bord d'un vehicule

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07271310A (ja) * 1994-03-25 1995-10-20 Nippon Seiki Co Ltd 車両用表示装置
US5675420A (en) * 1995-01-23 1997-10-07 Ohio Electronic Engravers, Inc. Intaglio engraving method and apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347293A (en) * 1988-09-09 1994-09-13 Robert Bosch Gmbh Display device for motor vehicles
EP0778440A2 (fr) * 1995-12-05 1997-06-11 Matsushita Electric Industrial Co., Ltd. Dispositif d'éclairage arrière et dispositif d'affichage couleur
JPH1038619A (ja) * 1996-07-30 1998-02-13 Denso Corp 車両用表示装置
WO1999019167A1 (fr) * 1997-10-10 1999-04-22 Robert Bosch Gmbh Dispositif de commande de la luminance de l'eclairage des tableaux et instruments de bord d'un vehicule

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 1998, Nr. 06, 30. April 1998 (1998-04-30) & JP 10 038619 A (DENSO CORP), 13. Februar 1998 (1998-02-13) *

Also Published As

Publication number Publication date
DE502004009037D1 (de) 2009-04-09
EP1510995B1 (fr) 2009-02-25
DE10340028B4 (de) 2009-07-09
DE10340028A1 (de) 2005-04-07
EP1510995A3 (fr) 2006-03-29

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