EP0374085B1 - Dispositif d'affichage électro-optique plat, en particulier tableau d'affichage LCD - Google Patents

Dispositif d'affichage électro-optique plat, en particulier tableau d'affichage LCD Download PDF

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Publication number
EP0374085B1
EP0374085B1 EP89730208A EP89730208A EP0374085B1 EP 0374085 B1 EP0374085 B1 EP 0374085B1 EP 89730208 A EP89730208 A EP 89730208A EP 89730208 A EP89730208 A EP 89730208A EP 0374085 B1 EP0374085 B1 EP 0374085B1
Authority
EP
European Patent Office
Prior art keywords
light
housing
electro
display elements
assigned
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
EP89730208A
Other languages
German (de)
English (en)
Other versions
EP0374085A3 (en
EP0374085A2 (fr
Inventor
Herbert Sperl
Hartmuth Siefker
Frank Mössner
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.)
Funkwerk Systems GmbH
Original Assignee
Krone GmbH
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 Krone GmbH filed Critical Krone GmbH
Priority to AT89730208T priority Critical patent/ATE94674T1/de
Publication of EP0374085A2 publication Critical patent/EP0374085A2/fr
Publication of EP0374085A3 publication Critical patent/EP0374085A3/de
Application granted granted Critical
Publication of EP0374085B1 publication Critical patent/EP0374085B1/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
    • 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
    • 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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • 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
    • G09F13/0418—Constructional details
    • G09F2013/05—Constructional details indicating exit way or orientation

Definitions

  • the invention relates to an electro-optical flat display device, in particular an LCD display panel according to the preamble of claim 1.
  • An electro-optical flat display device of the generic type designed as an LCD display panel is previously known from EP 0.146.285.
  • several display elements are arranged next to each other in five horizontal rows, each of which is formed from a 5x3 matrix.
  • the five rows of LCD display elements form the front of the housing.
  • Two fluorescent lamps, which extend in the longitudinal direction of the rows of LCD display elements, are installed in the housing as the lighting device.
  • the disadvantage here is a high heat development of the fluorescent lamps within the flat housing, so that fans must be attached to the housing regularly for heat dissipation.
  • Another disadvantage is that the fluorescent lamps have to be replaced after a certain burning time.
  • the individual rows of LCD display elements are arranged foldably on the front of the housing, so that the fluorescent lamps provided with a reflector on the rear of the housing can be replaced from the front of the housing.
  • Another disadvantage is that the LCD display elements are constantly exposed to UV and heat radiation. This leads to the decomposition and destruction of the dyes within the LCD display elements, so that they have to be replaced after a long period of use.
  • a further disadvantage is that the fluorescent lamps must be associated with electrical installation devices inside the housing or on the rear thereof, which also generate heat and are heavy in weight.
  • the necessity of the foldable arrangement of the LCD display elements through a large number of housing openings allows dust to penetrate into the housing interior, which is deposited on the fluorescent lamps on the one hand and on the inside of the LCD display elements on the other hand and for premature light attenuation leads.
  • the invention is therefore based on the object of improving an electro-optical flat display device, in particular an LCD display panel, of the generic type in such a way that the lighting device is considerably simplified in order to achieve a more compact flat display device, the display elements of which are not UV or Heat radiation can still be exposed to dust, and which is particularly easy to maintain.
  • the backlighting of the display elements takes place by means of a light guide tube assigned to the row of display elements and arranged in the interior of the housing, the light source at one end of the light guide tube, in particular outside the housing.
  • the light pipe is made of translucent material and is surrounded by a reflector, so that the entire light radiation emanating from the light source is constantly reflected within the light guide tube and can only emerge directly in the area of the individual display elements through the cutouts of the reflector. On the one hand, this enables full utilization of the light radiation from the light source.
  • the housing can thus be encapsulated in a dust-tight manner. Furthermore, there is no electrical installation inside the housing. A ventilation device of the housing is also no longer required.
  • the light source is arranged at the end of the light guide tube located outside the housing, and color and heat filters are placed in front of the light source.
  • the electronic components for controlling the LCD display elements can be arranged in the housing spaces formed between them.
  • Optical tubes are known per se, for example from DE 34 30 191. However, these serve exclusively as lighting elements for room lighting, whereas the use of such light guide tubes in electro-optical flat display devices, in particular LCD display panels, is claimed according to the invention.
  • the LCD display panel consists of a flat housing 1 with rear wall 2, top wall 3, bottom wall 4, side walls 5 and with intermediate walls 6, which extend between the side walls 5 parallel to top wall 3 and bottom wall 4 and form the individual chambers 7.
  • the front 8 of the housing is essentially formed by rows 9 of LCD display elements 10, which in the exemplary embodiment are designed as known 7-segment display elements. Instead of the 7-segment display elements, 3x5 matrix elements or the like can also be used. The structure of such LCD display elements is described in more detail in EP 0.146.285.
  • the LCD display elements 10 are received by profiles 11 which extend longitudinally on the front side 8 and which are fastened to the top wall 3 and the bottom wall 4 and to the intermediate walls 6.
  • the electronic components 23 assigned to the individual LCD display elements 10 are mounted on the intermediate walls 6. On the inside, the LCD display elements 10 are assigned to diffusers 24.
  • the entire housing 1 is encapsulated in a dust-tight manner.
  • light guide tubes 12 are arranged, which are U-shaped in the exemplary embodiment, the open side of the U-shape being formed by a strip-shaped wall 13.
  • the light guide tubes 12 and the U-shaped closing walls 13 are surrounded by reflection material 14, which has cutouts 15 only in the area of the LCD display elements 10, which serve as light exit openings and whose surface dimensions correspond exactly to those of the LCD display elements 10 to be illuminated and are assigned to them is.
  • concentrators 16 are still mounted in the rear curvature area of the U-shape, which direct the light that is totally totally reflected in the light guide tubes 10 onto the opposite cutouts 15 of the reflector material 14.
  • Each light guide tube 12 is connected to a light guide tube 17 lying outside the housing 1, which has at one end a light source 18 which introduces all of its light radiation into the light guide tube 17 by means of a suitable reflector 25.
  • Deflecting mirrors 19, 20 are arranged at the bends of the light guide tube 17 and at the entry points of the light guide tubes 12, the deflecting mirrors 19 deflecting all of the light radiation supplied and the deflecting mirrors 20 deflecting only partial radiation into the respective light guide tubes 17 and 12, respectively.
  • the light source 18 is preceded by a heat filter 21 in the form of a glass pane and a color filter 22 which is in the form of an electrically controllable, birefringent color filter in liquid crystal technology (ECB-LC filter).
  • the light radiation emanating from the light source 18 is totally introduced into the individual light guide tubes 12 via the light guide tube 17 and the deflecting mirror 19, 20.
  • the light radiation introduced onto the walls of the light guide tubes 12, including the flat walls 13 assigned to them is totally introduced into the individual light guide tubes 12 via the light guide tube 17 and the deflecting mirror 19, 20.
  • Additional mirrors for largely lossless reflection of the light radiation are arranged at the end opposite the light source 18 in a manner not shown in detail.
  • the light radiation which is thus totally totally reflected within the light guide tubes 12 can only emerge through the light exit openings 15 which are assigned to the respective LCD display elements 10.
  • the intensity of the light radiation emerging here is increased further by means of the concentrators 16.
  • a material known per se serves as the material for the light guide tube 12 and the wall 13 that closes it off.
  • a reflection film is used, which is explained in DE 34 30 191 A1 using the example of a luminous element with prismatic light guide for room lighting.
  • a special design of the outer contour of the light-guiding film serves for total reflection of the light radiation within a light-guiding tube 12, wherein the radiation can only exit within the cutouts 15.

Landscapes

  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal Substances (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Processing Of Solid Wastes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Claims (7)

  1. Dispositif d'affichage électro-optique plat, essentiellement tableau d'affichage LCD, comprenant un boîtier (1) plat avec au moins une rangée (9) d'éléments d'affichage (10) formant la face avant (8) du boîtier (1) et un dispositif d'éclairage disposé à l'intérieur du boîtier et affecté à la rangée (9) d'éléments d'affichage (10),
    caractérisé en ce que
    le dispositif d'éclairage est formé d'un tube à fibre optique (12) disposé à l'intérieur du boîtier (1), d'un tube à fibre optique (17) disposé à l'extérieur du boîtier (1), et d'une source lumineuse (18) disposée à une ouverture d'entrée de lumière du tube à fibre optique (17), que le tube à fibre optique (12) est en un matériau translucide et est entouré d'un matériau réflecteur (14) et que le matériau réflecteur (14) présente des entailles (15) affectées aux différents éléments d'affichage (10) comme ouvertures de sortie de lumière.
  2. Dispositif d'affichage électro-optique plat, selon la revendication 1,
    caractérisé en ce que
    la source lumineuse (18) est disposée à l'extrémité du tube à fibre optique (12, 17) située à l'extérieur du boîtier (1).
  3. Dispositif d'affichage électro-optique plat selon la revendication 1 ou 2,
    caractérisé en ce que
    un filtre thermique (21) et un filtre chromatique (22) sont affectés à la source lumineuse (18).
  4. Dispositif d'affichage électro-optique plat selon la revendication 3,
    caractérisé en ce que
    le filtre thermique (21) est formé par un disque en verre.
  5. Dispositif d'affichage électro-optique plat selon la revendication 3,
    caractérisé en ce que
    le filtre chromatique (22) est formé d'un filtre chromatique biréfringent, pouvant être commandé électriquement, en technologie à cristaux liquides (filtre ECB-LC).
  6. Dispositif d'affichage électro-optique plat selon l'une des revendications 1 à 5,
    caractérisé en ce que
    les éléments d'affichage (10) sont des éléments à cristaux liquides LCD.
  7. Dispositif d'affichage électro-optique plat selon la revendication 6
    caractérisé en ce que
    plusieurs rangées d'éléments d'affichage LCD (10) avec un tube à fibre optique correspondant (12) sont disposées à l'intérieur du boîtier et
    que les éléments de construction électroniques (B) affectés aux éléments d'affichage LCD (10) sont disposés entre les tubes à fibre optique (12).
EP89730208A 1988-12-16 1989-10-14 Dispositif d'affichage électro-optique plat, en particulier tableau d'affichage LCD Expired - Lifetime EP0374085B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89730208T ATE94674T1 (de) 1988-12-16 1989-10-14 Elektro-optische flachanzeigeeinrichtung, insbesondere lcd-anzeigetafel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3842900A DE3842900C1 (fr) 1988-12-16 1988-12-16
DE3842900 1988-12-16

Publications (3)

Publication Number Publication Date
EP0374085A2 EP0374085A2 (fr) 1990-06-20
EP0374085A3 EP0374085A3 (en) 1990-12-05
EP0374085B1 true EP0374085B1 (fr) 1993-09-15

Family

ID=6369639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89730208A Expired - Lifetime EP0374085B1 (fr) 1988-12-16 1989-10-14 Dispositif d'affichage électro-optique plat, en particulier tableau d'affichage LCD

Country Status (15)

Country Link
US (1) US5044734A (fr)
EP (1) EP0374085B1 (fr)
JP (1) JPH02238486A (fr)
AT (1) ATE94674T1 (fr)
AU (1) AU628427B2 (fr)
BR (1) BR8906533A (fr)
CA (1) CA2005792A1 (fr)
DE (2) DE3842900C1 (fr)
DK (1) DK638589A (fr)
FI (1) FI896040A0 (fr)
NO (1) NO894627L (fr)
NZ (1) NZ231200A (fr)
PT (1) PT92593B (fr)
TR (1) TR24389A (fr)
ZA (1) ZA899605B (fr)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246231A (en) * 1990-07-20 1992-01-22 Marconi Gec Ltd Liquid crystal displays.
DE4032679A1 (de) * 1990-10-15 1992-04-16 Mannesmann Kienzle Gmbh Zapfsaeulen-anzeigevorrichtung
WO1992021051A1 (fr) * 1991-05-15 1992-11-26 Idemitsu Kosan Co., Ltd. Module a cristaux liquides
US5303322A (en) * 1992-03-23 1994-04-12 Nioptics Corporation Tapered multilayer luminaire devices
US5237641A (en) * 1992-03-23 1993-08-17 Nioptics Corporation Tapered multilayer luminaire devices
US5528720A (en) * 1992-03-23 1996-06-18 Minnesota Mining And Manufacturing Co. Tapered multilayer luminaire devices
US6002829A (en) 1992-03-23 1999-12-14 Minnesota Mining And Manufacturing Company Luminaire device
DE9210692U1 (de) * 1992-08-11 1993-12-16 Opti Table Info-Systeme GmbH & Co KG, 42699 Solingen Flüssigkristall-Anzeigeeinrichtung
FR2710439B1 (fr) * 1993-09-21 1995-11-24 Sextant Avionique Module d'éclairage pour instruments à matrice à cristaux liquides.
US5771321A (en) * 1996-01-04 1998-06-23 Massachusetts Institute Of Technology Micromechanical optical switch and flat panel display
US6152580A (en) * 1998-02-17 2000-11-28 Rainbow Displays, Inc. Apparatus and method for producing collimated light from an area source
JP2003536186A (ja) * 2000-06-19 2003-12-02 シーメンス トランスポーテイション システムズ インコーポレイテッド 交通情報ディスプレイ構成システム及び方法
TW546491B (en) * 2001-02-21 2003-08-11 Au Optronics Corp Light source set with a uniform temperature function and flat display
US7417782B2 (en) * 2005-02-23 2008-08-26 Pixtronix, Incorporated Methods and apparatus for spatial light modulation
US20080158635A1 (en) * 2005-02-23 2008-07-03 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US8159428B2 (en) 2005-02-23 2012-04-17 Pixtronix, Inc. Display methods and apparatus
US8519945B2 (en) 2006-01-06 2013-08-27 Pixtronix, Inc. Circuits for controlling display apparatus
US9082353B2 (en) 2010-01-05 2015-07-14 Pixtronix, Inc. Circuits for controlling display apparatus
US9158106B2 (en) 2005-02-23 2015-10-13 Pixtronix, Inc. Display methods and apparatus
US9229222B2 (en) 2005-02-23 2016-01-05 Pixtronix, Inc. Alignment methods in fluid-filled MEMS displays
US8482496B2 (en) 2006-01-06 2013-07-09 Pixtronix, Inc. Circuits for controlling MEMS display apparatus on a transparent substrate
US9261694B2 (en) 2005-02-23 2016-02-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US8310442B2 (en) 2005-02-23 2012-11-13 Pixtronix, Inc. Circuits for controlling display apparatus
US7304786B2 (en) 2005-02-23 2007-12-04 Pixtronix, Inc. Methods and apparatus for bi-stable actuation of displays
US20070205969A1 (en) 2005-02-23 2007-09-06 Pixtronix, Incorporated Direct-view MEMS display devices and methods for generating images thereon
US7999994B2 (en) * 2005-02-23 2011-08-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
JP4483833B2 (ja) * 2005-09-22 2010-06-16 エプソンイメージングデバイス株式会社 電気光学装置、電子機器、保護部材、保護部材の製造方法
US8526096B2 (en) 2006-02-23 2013-09-03 Pixtronix, Inc. Mechanical light modulators with stressed beams
US9176318B2 (en) 2007-05-18 2015-11-03 Pixtronix, Inc. Methods for manufacturing fluid-filled MEMS displays
US8248560B2 (en) 2008-04-18 2012-08-21 Pixtronix, Inc. Light guides and backlight systems incorporating prismatic structures and light redirectors
US8169679B2 (en) 2008-10-27 2012-05-01 Pixtronix, Inc. MEMS anchors
BR112012019383A2 (pt) 2010-02-02 2017-09-12 Pixtronix Inc Circuitos para controlar aparelho de exibição
KR20120132680A (ko) 2010-02-02 2012-12-07 픽스트로닉스 인코포레이티드 저온 실 유체 충전된 디스플레이 장치의 제조 방법
JP5917559B2 (ja) 2010-12-20 2016-05-18 ピクストロニクス，インコーポレイテッド 音響放射が低減されたｍｅｍｓ光変調器アレイのためのシステムおよび方法
TWI545296B (zh) * 2012-12-24 2016-08-11 鴻海精密工業股份有限公司 背光模組
US9170421B2 (en) 2013-02-05 2015-10-27 Pixtronix, Inc. Display apparatus incorporating multi-level shutters
US9134552B2 (en) 2013-03-13 2015-09-15 Pixtronix, Inc. Display apparatus with narrow gap electrostatic actuators
US9764049B2 (en) 2015-12-10 2017-09-19 Phoseon Technology, Inc. Radiation delivery system and method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043636A (en) * 1974-12-23 1977-08-23 Intel Corporation Illumination-panel for liquid crystal display of similar device
CH608934B5 (de) * 1976-06-03 1979-10-31 Bbc Brown Boveri & Cie Elektro-optische anzeigevorrichtung
DE2902745A1 (de) * 1979-01-25 1980-08-07 Vdo Schindling Ueber lichtleiter beleuchtete kraftfahrzeuginstrumente
DE2931327A1 (de) * 1979-08-02 1981-02-19 Rau Swf Autozubehoer Anzeigesystem, insbesondere fuer kraftfahrzeuge
AU1377883A (en) * 1982-02-22 1983-09-08 Torresdal, D.N. Digital meter with improved control and light directing structure for liquid crystal display
US4615579A (en) * 1983-08-29 1986-10-07 Canadian Patents & Development Ltd. Prism light guide luminaire
GB2161969B (en) * 1984-07-17 1988-03-09 Stc Plc Edge lit liquid crystal display device
US4775222A (en) * 1984-08-27 1988-10-04 Mitsubishi Rayon Company Ltd. Light diffusing device
DE3618516A1 (de) * 1985-12-13 1987-06-19 Vdo Schindling Beleuchtungseinrichtung
US4822145A (en) * 1986-05-14 1989-04-18 Massachusetts Institute Of Technology Method and apparatus utilizing waveguide and polarized light for display of dynamic images
GB2198867A (en) * 1986-12-17 1988-06-22 Philips Electronic Associated A liquid crystal display illumination system
US4838661A (en) * 1988-01-05 1989-06-13 Motorola, Inc. Liquid crystal light emitting display system

Also Published As

Publication number Publication date
US5044734A (en) 1991-09-03
AU4553989A (en) 1990-06-21
FI896040A0 (fi) 1989-12-15
EP0374085A3 (en) 1990-12-05
PT92593B (pt) 1995-09-12
NO894627L (no) 1990-06-18
DK638589A (da) 1990-06-17
TR24389A (tr) 1991-09-24
JPH02238486A (ja) 1990-09-20
BR8906533A (pt) 1990-08-28
ZA899605B (en) 1990-09-26
AU628427B2 (en) 1992-09-17
DE3842900C1 (fr) 1990-05-10
DK638589D0 (da) 1989-12-15
DE58905624D1 (de) 1993-10-21
ATE94674T1 (de) 1993-10-15
CA2005792A1 (fr) 1990-06-16
NZ231200A (en) 1991-12-23
EP0374085A2 (fr) 1990-06-20
NO894627D0 (no) 1989-11-21
PT92593A (pt) 1990-06-29

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