EP1383101B1 - Dispositif d'affichage rétroéclairé - Google Patents

Dispositif d'affichage rétroéclairé Download PDF

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Publication number
EP1383101B1
EP1383101B1 EP02015992A EP02015992A EP1383101B1 EP 1383101 B1 EP1383101 B1 EP 1383101B1 EP 02015992 A EP02015992 A EP 02015992A EP 02015992 A EP02015992 A EP 02015992A EP 1383101 B1 EP1383101 B1 EP 1383101B1
Authority
EP
European Patent Office
Prior art keywords
backlit
symbol
front side
plastic sheet
sign
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.)
Expired - Lifetime
Application number
EP02015992A
Other languages
German (de)
English (en)
Other versions
EP1383101A1 (fr
Inventor
Rolf Brölemann
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.)
Goodrich Lighting Systems GmbH and Co KG
Original Assignee
Goodrich Lighting Systems GmbH and Co KG
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 Goodrich Lighting Systems GmbH and Co KG filed Critical Goodrich Lighting Systems GmbH and Co KG
Priority to AT02015992T priority Critical patent/ATE363707T1/de
Priority to ES02015992T priority patent/ES2284752T3/es
Priority to DE50210237T priority patent/DE50210237D1/de
Priority to EP02015992A priority patent/EP1383101B1/fr
Priority to US10/621,525 priority patent/US6978566B2/en
Publication of EP1383101A1 publication Critical patent/EP1383101A1/fr
Application granted granted Critical
Publication of EP1383101B1 publication Critical patent/EP1383101B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a backlit display, as used for example as an indicator light in buildings or vehicles and in particular in aircraft.
  • backlit display surfaces Such backlit displays, see, for example, document US 5263271 which is considered to be the closest prior art to the subject-matter of claim 1, can be found, for example, in airplanes for indicating whether the toilets are occupied or not or for displaying the seatbelt sign.
  • the latter two optical displays are located directly above the passengers and are part of the so-called passenger service units (PSU).
  • PSU passenger service units
  • Backlit display surfaces are usually made of a transparent plastic material as a panel element, on the front of which to display the symbols or the like. Display information is printed. This printed, front side is then coated with an opaque lacquer that is exposed in the area of the symbols. The entire front of the panel element is then subsequently painted with translucent color. Because of this color layer order, the symbol fields are then, if they are not backlit, barely recognizable to the viewer and, ideally, not recognizable.
  • An object of the invention is to improve the visual appearance of a backlit display, especially when the display is not backlit.
  • the backlit display according to the invention has a two-part construction and comprises a transparent plastic film forming the front side of the panel element, which is back-injected with opaque plastic injection-molding material.
  • This production process takes place, for example, in an insert injection molding tool, wherein the transparent plastic film is used as the insert.
  • This plastic film is on the back-injected plastic injection molding material opposite (front) side provided with translucent color.
  • the plastic film is free in the area of the at least one symbol field on the back.
  • the diaphragm element Due to the construction of the diaphragm element according to the invention, this has a flat and thus not structured front side, which is formed by the film. Films can be technically much easier and more accurate print than the surface of non-sheet material. Because the printing techniques can be used particularly advantageously with flat sheet or building materials, without the printing inks visibly apply. As a result, the symbol fields in the non-backlit state of the display are not recognizable.
  • the transparent plastic film is so thin that on the symbol fields fed from the back of the panel element backlit light on the side edges of the plastic film optically no longer noticeable leaks. The by the transparent plastic film necessarily given light pipe to the outer edge of the film is therefore optically imperceptible.
  • the plastic film is printed within the at least one symbol field for generating a graphic symbol, a letter and / or number symbol or another display symbol, in particular in the screen printing process.
  • the word "printing” is to be understood quite generally and is not limited to an actual printing process.
  • a screen printing is particularly advantageous in terms of a homogeneous print image.
  • a symbol field of the back-lit display must be backlit in different colors. This is the case, for example, in the case of the non-smoking sign, which is a stylized presentation of a cigarette and, for example, a cross with red bars.
  • the non-smoking sign which is a stylized presentation of a cigarette and, for example, a cross with red bars.
  • the film may also be printed with different colors and the entire symbol field may be printed with backlighting light of the same color, e.g. B. white, backlit.
  • the variant to be described here comprises a light-permeable plastic injection-molding material which adjoins the entire surface of the rear side of the film.
  • the film has printed on its front and / or back produced translucent symbol fields and is provided on its front with translucent color.
  • a backlit insert 12 is clipped, which has a diaphragm element 14 made of a plastic material and a housing part 15.
  • This diaphragm element 14 has a transparent plastic film 16, whose one side of the front side 18 of the diaphragm element 14 is provided with a translucent ink layer 20.
  • the film 16 is injection-molded with plastic injection-molding material for producing a peripheral edge 24 projecting from the rear side 22 of the diaphragm element 14. This plastic injection-molding material covers the rear side of the film 16 with the exception of symbol fields 26, 28.
  • a printed circuit board 30 is disposed within the housing part 15, the LEDs 32,34 for backlighting the symbol fields 26,28.
  • the film 16 is printed, for example by screen printing.
  • the plastic film 16 consists for example of transparent polycarbonate (PC), while it is in the back-injected plastic injection molding material is a non-translucent molding composition.
  • the diaphragm element 14 is produced in an injection molding tool in which the transparent plastic film 16 is inserted before the injection molding material is injected.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Pinball Game Machines (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)

Claims (13)

  1. Dispositif d'affichage pouvant être rétro-éclairé comportant
    - un élément d'écran (14) présentant une face avant (18) avec au moins un champ à symbole (26, 28) pouvant être rétro-éclairé ainsi qu'une face arrière (22) opposée à la face avant (18),
    - la face avant (18) étant formée par une feuille en matière plastique (16) transparente, munie d'une peinture translucide (20) et
    - la face arrière (22) étant formée par injection de matière plastique moulée par injection contre le film en matière plastique (16), et cette matière plastique moulée par injection couvrant de façon opaque la feuille en matière plastique (16) en laissant libre au moins un champ à symbole (26, 28).
  2. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 1, caractérisé en ce que la feuille en matière plastique (16) est imprimée à l'intérieur d'au moins un champ à symbole (26, 28) pour la production d'un symbole graphique, d'un symbole alphabétique et/ou numérique ou d'un symbole d'affichage similaire.
  3. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 2, caractérisé en ce que l'impression est appliquée sur la face avant (18) de la feuille en matière plastique (16).
  4. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 3, caractérisé en ce que l'impression présente des couleurs différentes.
  5. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 4, caractérisé en ce qu'au moins un champ à symbole (26, 28) peut être rétro-éclairé avec une lumière monochrome.
  6. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 3, caractérisé en ce que l'impression est monochrome.
  7. Dispositif d'affichage pouvant être rétro-éclairé selon les revendications 3 et 6, caractérisé en ce qu'il est prévu, à l'intérieur d'au moins un champ à symbole (28), au moins une barrette (36) obstruant la lumière, réalisée dans une matière plastique moulée par injection, située à distance de la face arrière (22) de la feuille en matière plastique (16).
  8. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 7, caractérisé en ce que les zones, séparées par au moins une barrette (36) obstruant la lumière, d'au moins un champ à symbole (28) peuvent être rétro-éclairées par de la lumière de différentes couleurs.
  9. Dispositif d'affichage pouvant être rétro-éclairé comportant
    - un élément d'écran (14) présentant une face avant (18) avec au moins un champ à symbole (26, 28) pouvant être rétro-éclairé et une face arrière (22) opposée à la face avant (18),
    - la face avant (18) étant formée par une feuille en matière plastique (16) transparente, munie d'une peinture translucide (20) et
    - la face arrière (22) étant formée par injection, sur toute la surface, de matière plastique transparente moulée par injection contre la feuille en matière plastique.
  10. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 9, caractérisé en ce que la feuille en matière plastique (16) est imprimée à l'intérieur d'au moins un champ à symbole (26, 28) pour la production d'un symbole graphique, d'un symbole alphabétique et/ou numérique ou d'un symbole d'affichage similaire.
  11. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 10, caractérisé en ce que l'impression est appliquée sur la face avant (18) de la feuille en matière plastique (16).
  12. Dispositif d'affichage pouvant être rétro-éclairé selon la revendication 11, caractérisé en ce que l'impression présente des couleurs différentes.
  13. Dispositif d'affichage selon la revendication 12, caractérisé en ce qu'au moins un champ à symbole (26, 28) peut être rétro-éclairé avec une lumière monochrome.
EP02015992A 2002-07-18 2002-07-18 Dispositif d'affichage rétroéclairé Expired - Lifetime EP1383101B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT02015992T ATE363707T1 (de) 2002-07-18 2002-07-18 Hinterleuchtbare anzeige
ES02015992T ES2284752T3 (es) 2002-07-18 2002-07-18 Representacion iluminada desde atras.
DE50210237T DE50210237D1 (de) 2002-07-18 2002-07-18 Hinterleuchtbare Anzeige
EP02015992A EP1383101B1 (fr) 2002-07-18 2002-07-18 Dispositif d'affichage rétroéclairé
US10/621,525 US6978566B2 (en) 2002-07-18 2003-07-18 Backlit sign

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02015992A EP1383101B1 (fr) 2002-07-18 2002-07-18 Dispositif d'affichage rétroéclairé

Publications (2)

Publication Number Publication Date
EP1383101A1 EP1383101A1 (fr) 2004-01-21
EP1383101B1 true EP1383101B1 (fr) 2007-05-30

Family

ID=29762653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015992A Expired - Lifetime EP1383101B1 (fr) 2002-07-18 2002-07-18 Dispositif d'affichage rétroéclairé

Country Status (4)

Country Link
EP (1) EP1383101B1 (fr)
AT (1) ATE363707T1 (fr)
DE (1) DE50210237D1 (fr)
ES (1) ES2284752T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006053047B4 (de) 2006-11-10 2008-12-18 Krauss-Maffei Wegmann Gmbh & Co. Kg Verbundpanzerplatte
JP5981183B2 (ja) * 2012-03-23 2016-08-31 矢崎総業株式会社 表示装置
DE102016004012A1 (de) * 2016-04-02 2017-10-05 Audi Ag Bedienvorrichtung für ein Kraftfahrzeug mit einem lichtdurchlässigen Abdeckelement und Verfahren zum Herstellen eines Abdeckelements

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263271A (en) * 1991-07-01 1993-11-23 Honeywell Inc. Annumciator with improved deadfront effect and improve light distribution uniformity
FR2685061B1 (fr) * 1991-12-11 1997-08-29 Vibrachoc Sa Platine eclairante.
JP3258905B2 (ja) * 1996-05-21 2002-02-18 三洋電機株式会社 前面パネルの表示窓とその形成方法
JP2001351427A (ja) * 2000-06-08 2001-12-21 Koito Mfg Co Ltd 表示灯

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE50210237D1 (de) 2007-07-12
ES2284752T3 (es) 2007-11-16
EP1383101A1 (fr) 2004-01-21
ATE363707T1 (de) 2007-06-15

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