WO2000070396A1 - Flüssigkristallanzeige - Google Patents
Flüssigkristallanzeige Download PDFInfo
- Publication number
- WO2000070396A1 WO2000070396A1 PCT/DE2000/000879 DE0000879W WO0070396A1 WO 2000070396 A1 WO2000070396 A1 WO 2000070396A1 DE 0000879 W DE0000879 W DE 0000879W WO 0070396 A1 WO0070396 A1 WO 0070396A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- display according
- metallic layer
- plastic
- liquid crystal
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims description 16
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000010408 film Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Classifications
-
- 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
- G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
-
- 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
- G02F1/133553—Reflecting elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
- H05B3/267—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base the insulating base being an organic material, e.g. plastic
Definitions
- the invention relates to a liquid crystal display in which a display 1 acting as a liquid crystal cell, a support designed as a reflector and a heating device for the display are arranged in a housing.
- Such a liquid crystal display is already known as prior art (DE 44 17 990 AI), in which a light box is arranged behind a liquid crystal cell, which is delimited on its rear side by a printed circuit board which
- a heating wire is located between the lamps and the liquid crystal cell, so that the liquid crystal cell can be heated at too low temperatures.
- Another prior art is a liquid crystal display, the liquid crystal cell of which has a transparent thin-film heater (DE 41 40 415 AI).
- the present invention has for its object to provide a liquid crystal display of the type mentioned, in which a display acting as a liquid crystal cell can be heated in a functionally reliable manner at low temperatures with little structural complexity.
- the heating device is a metallic layer applied directly to the carrier.
- These metallic See layer advantageously serves as resistance heating. With such a metallic layer, which is applied directly to the carrier, no additional parts have to be mounted.
- connection layer (primer) and with subsequent galvanic coating
- the carrier can be produced from the two plastics, for example in a two-component injection molding process.
- the galvanic coating in the first or the second method can consist of copper, for example.
- the contact can be made either via pins injected into the carrier, preferably made of metal, or directly via metallized plastic surfaces which are soldered to the printed circuit board.
- the housing and the carrier provided with the metallic layer as a heating device are formed in one piece, which results in a considerable simplification in design and a cost reduction.
- Fig. 2 shows another embodiment of a one-piece version of the liquid crystal display.
- a display 1 designed as a liquid crystal cell and a support 2 acting as a reflector are arranged within a housing 10.
- a scattering film 5, which is likewise arranged in the housing, can be located below the display 1.
- the housing 10 is closed by a frame 20, for example by recesses 15 in the frame 20, which are clipped onto the outside of the housing 10 with latching tongues 25.
- On the carrier 2, which acts as a reflector, is located a heating device which is designed as a metallic layer 8 applied directly to the carrier 2.
- a printed circuit board 14 is also provided.
- the metallic layer can be made by coating the carrier 2 consisting of plastic with a connecting layer and by subsequent galvanic
- the galvanic coating can consist of copper, for example.
- Another production possibility for the metallic layer arises in that a film is coated with a connecting layer and then galvanically treated, after which the film is subsequently deep-drawn and connected to the carrier 2 by back injection.
- the carrier can be produced from a metallizable and a non-metallizable plastic, for example in a two-component tip process, with subsequent partial chemical metallization of the carrier.
- plastic part are irradiated with short-wave ultraviolet light from an excimer lamp or an excimer reader.
- the plastic is then immersed in an aqueous solution, with a continuous copper or nickel layer forming in other baths within a short time.
- These layers can be electrically contacted and galvanically reinforced to the usual thickness for conductor tracks.
- the metallic layer 8 can be provided with contact pins injected into the carrier 2, which pins are designed, for example, as metal pins. Another possibility is that the contact is made directly via metallized plastic surfaces, which are soldered to the circuit board.
- FIG. 2 there is also the possibility of a one-piece version of the liquid crystal display: here the printed circuit board or the housing 10 is connected in one piece to the carrier 2, this carrier 2 again having a metallic layer 8 analogously to the embodiment according to FIG. 1, which analog 1 forms a heating device.
- the heating device is a metallic layer 8 applied directly to the carrier 2 results in a considerable simplification of the entire unit and a reduction in costs, since no additional parts have to be installed.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/979,582 US6747726B1 (en) | 1999-05-14 | 2000-03-22 | Liquid crystal display with reflective support member and heating device |
JP2000618776A JP2002544563A (ja) | 1999-05-14 | 2000-03-22 | 液晶表示装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19922369.6 | 1999-05-14 | ||
DE19922369A DE19922369B4 (de) | 1999-05-14 | 1999-05-14 | Flüssigkristallanzeige |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000070396A1 true WO2000070396A1 (de) | 2000-11-23 |
Family
ID=7908150
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/000879 WO2000070396A1 (de) | 1999-05-14 | 2000-03-22 | Flüssigkristallanzeige |
Country Status (4)
Country | Link |
---|---|
US (1) | US6747726B1 (de) |
JP (1) | JP2002544563A (de) |
DE (1) | DE19922369B4 (de) |
WO (1) | WO2000070396A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202048A1 (de) * | 2002-01-18 | 2003-07-24 | Siemens Ag | Flüssigkristall-Anzeige |
DE10245580B4 (de) * | 2002-09-27 | 2006-06-01 | Siemens Ag | Einrichtung zur Erzeugung eines Bildes |
US7718451B2 (en) | 2003-02-28 | 2010-05-18 | Osram Opto Semiconductor Gmbh | Method for producing an optoelectronic device with patterned-metallized package body and method for the patterned metalization of a plastic-containing body |
EP1597764A1 (de) * | 2003-02-28 | 2005-11-23 | Osram Opto Semiconductors GmbH | Optoelektronisches bauteil mit strukturiert metallisiertem gehäusekörper, verfahren zur herstellung eines derartigen bauteils und verfahren zur strukturierten metallisierung eines kunststoff enthaltenden körpers |
GB0402766D0 (en) * | 2004-02-09 | 2004-03-10 | Invensys Controls Uk Ltd | Information display module |
JP4968014B2 (ja) * | 2007-11-22 | 2012-07-04 | ソニー株式会社 | バックライト装置及び液晶表示装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0031475A1 (de) * | 1979-12-07 | 1981-07-08 | Siemens Aktiengesellschaft | Heizbare Flüssigkristallzelle |
DE3328339A1 (de) * | 1983-08-05 | 1985-02-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur metallisierung einer kunststoffoberflaeche |
US4773735A (en) * | 1986-08-04 | 1988-09-27 | Allied-Signal Inc. | Fast warm-up heater for liquid crystal display |
WO1998036313A1 (fr) * | 1997-02-12 | 1998-08-20 | Hitachi, Ltd. | Afficheur a cristaux liquides |
US5920366A (en) * | 1996-09-24 | 1999-07-06 | Rockwell International Corporation | Dynamic multi-contact display heater system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4623222A (en) * | 1983-11-14 | 1986-11-18 | Nippondenso Co., Ltd. | Liquid crystal type dazzle-free transmissive-reflective mirror |
US4907859A (en) * | 1983-11-15 | 1990-03-13 | Canon Kabushiki Kaisha | Liquid crystal device and image forming apparatus utilizing liquid crystal device |
US4643525A (en) * | 1984-12-24 | 1987-02-17 | General Electric Co. | Transflective liquid crystal display with integral heating unit |
DE4140415A1 (de) * | 1991-12-07 | 1993-06-09 | Robert Bosch Gmbh, 7000 Stuttgart, De | Fluessigkristallanzeige |
US5436745A (en) * | 1994-02-23 | 1995-07-25 | Ois Optical Imaging Systems, Inc. | Flex circuit board for liquid crystal display |
DE4417990B4 (de) * | 1994-05-21 | 2004-11-11 | Siemens Ag | Flüssigkristallanzeige |
DE19718208A1 (de) * | 1997-04-30 | 1998-11-05 | Philips Patentverwaltung | Anzeigevorrichtung |
US5886763A (en) * | 1997-09-26 | 1999-03-23 | Ois Optical Imaging Systems, Inc. | LCD heater utilizing Z-axis conductive adhesive to attach bus bars to ito |
US6128053A (en) | 1997-10-22 | 2000-10-03 | Mannesmann Vdo Ag | Liquid crystal display with heater |
-
1999
- 1999-05-14 DE DE19922369A patent/DE19922369B4/de not_active Expired - Fee Related
-
2000
- 2000-03-22 US US09/979,582 patent/US6747726B1/en not_active Expired - Fee Related
- 2000-03-22 WO PCT/DE2000/000879 patent/WO2000070396A1/de active Application Filing
- 2000-03-22 JP JP2000618776A patent/JP2002544563A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0031475A1 (de) * | 1979-12-07 | 1981-07-08 | Siemens Aktiengesellschaft | Heizbare Flüssigkristallzelle |
DE3328339A1 (de) * | 1983-08-05 | 1985-02-14 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur metallisierung einer kunststoffoberflaeche |
US4773735A (en) * | 1986-08-04 | 1988-09-27 | Allied-Signal Inc. | Fast warm-up heater for liquid crystal display |
US5920366A (en) * | 1996-09-24 | 1999-07-06 | Rockwell International Corporation | Dynamic multi-contact display heater system |
WO1998036313A1 (fr) * | 1997-02-12 | 1998-08-20 | Hitachi, Ltd. | Afficheur a cristaux liquides |
Also Published As
Publication number | Publication date |
---|---|
US6747726B1 (en) | 2004-06-08 |
JP2002544563A (ja) | 2002-12-24 |
DE19922369A1 (de) | 2000-11-23 |
DE19922369B4 (de) | 2004-09-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1383360B1 (de) | Spritzgegossener Leiterträger und Verfahren zu seiner Herstellung | |
DE102007015625B4 (de) | Verfahren zur Herstellung galvanisch beschichteter Bauteile mit durchleuchtbaren oder unbeleuchteten Strukturen und nach dem Verfahren hergestellte Bedien-, Dekor- oder Anzeigeelemente | |
DE102010016973B4 (de) | Verfahren zur Herstellung eines einseitig metallisierten Bedienelements aus Kunststoff mit hinterleuchtbarer Symbolik | |
DE202007018495U1 (de) | Verbundformteil | |
EP0361195B1 (de) | Leiterplatte mit einem spritzgegossenen Substrat | |
EP0712265A1 (de) | Baugruppe | |
DE102006018902A1 (de) | Elektronisches Schaltungsgerät und Verfahren zur Herstellung desselben | |
DE102012100299A1 (de) | Verfahren zur selektiven Herstellung einer Leiterbahnstruktur sowie eine nach dem Verfahren hergestellte Leiterbahnstruktur | |
EP2499314B1 (de) | Verfahren zur herstellung eines kraftfahrzeugtürschlosses und zugehöriges kraftfahrzeugtürschloss | |
DE19922369B4 (de) | Flüssigkristallanzeige | |
EP1973384B1 (de) | Spiegelscheibe mit einem Substrat aus Kunststoff, ein Verfahren zu deren Herstellung sowie einen Außenspiegel mit einer solchen Spiegelscheibe | |
DE4416986A1 (de) | Verfahren zum Herstellen eines Bauteils aus thermoplastischem Kunststoff mit wenigstens einem integrierten, elektrisch leitenden Abschnitt sowie nach diesem Verfahren hergestelltes Bauteil | |
DE102008030031A1 (de) | Vorrichtung zum Befestigen einer Leuchteneinheit an einem Fahrzeug | |
WO1999013696A1 (de) | Verfahren zum metallisieren eines elektrisch nichtleitende oberflächenbereiche aufweisenden substrats | |
DE102013109361A1 (de) | Verfahren zur Herstellung eines metallisierten Bedienelements aus Kunststoff mit hinterleuchtbarer Symbolik; metallisiertes Bedienelement | |
DE102010048923A1 (de) | Verfahren zum Herstellen eines bereichsweise galvanisierten Kunststoffteils | |
EP1889338B1 (de) | Steckkontaktelement und verfahren zu dessen herstellung sowie vorrichtung zum durchführen des verfahrens | |
DE19731969A1 (de) | Verfahren zum Herstellen eines elektrischen Bauteils | |
DE202012013687U1 (de) | Partiell galvanisierbarer Mehrkomponenten-Kunststoffrohling sowie Kunststoffbauteil | |
DE102010041121A1 (de) | Schaltungsträger sowie Verfahren zur Herstellung eines Schaltungsträgers | |
DE102006046342A1 (de) | Heizgriff | |
EP0543045B1 (de) | Verfahren zur Herstellung von Leiterplatten | |
DE2920091A1 (de) | Kunststoff-formteil | |
EP0802266B1 (de) | Verfahren zur Herstellung von induktiv arbeitenden Zählsystemen | |
DE102013222855A1 (de) | Leadframe und dessen Verwendung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): BR CN CZ JP KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2000 618776 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09979582 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |