DE102014212146A1 - Electro-optical display with a transparent cover disc - Google Patents
Electro-optical display with a transparent cover disc Download PDFInfo
- Publication number
- DE102014212146A1 DE102014212146A1 DE102014212146.9A DE102014212146A DE102014212146A1 DE 102014212146 A1 DE102014212146 A1 DE 102014212146A1 DE 102014212146 A DE102014212146 A DE 102014212146A DE 102014212146 A1 DE102014212146 A1 DE 102014212146A1
- Authority
- DE
- Germany
- Prior art keywords
- electro
- transparent cover
- optical display
- cover disc
- spacers
- 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.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000007639 printing Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133325—Assembling processes
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133331—Cover glasses
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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Die Erfindung betrifft ein elektrooptisches Display mit einer transparenten Deckscheibe, wobei ein Abstand zwischen dem elektrooptischen Display und der transparenten Deckscheibe mittels Abstandshaltern eingestellt ist und so ein Zwischenraum vorhanden ist und der Zwischenraum mit einer Bondingmasse ausgefüllt ist, wodurch die Abstandshalter gedruckt sind.The invention relates to an electro-optical display with a transparent cover plate, wherein a distance between the electro-optical display and the transparent cover plate is adjusted by means of spacers and so a gap is present and the gap is filled with a bonding mass, whereby the spacers are printed.
Description
Die Erfindung betrifft ein elektrooptisches Display mit einer transparenten Deckscheibe. Im Stand der Technik sind derartige Displays bekannt, wobei ein Abstand zwischen dem elektrooptischen Display und der transparenten Deckscheibe mittels Abstandshaltern eingestellt ist, und so ein Zwischenraum vorhanden ist, und der Zwischenraum mit einer Bondingmasse ausgefüllt ist. Durch diese zusätzliche transparente Deckscheibe und die zusätzliche Verklebung wird zum einen das elektrooptische Display mechanisch geschützt. Weiterhin werden durch die Verklebung die optischen Eigenschaften des elektrooptischen Displays verbessert. Bei der Auswahl eines geeigneten Klebers wird dabei vorzugsweise darauf geachtet, dass die optischen Eigenschaften, wie beispielsweise der Brechnungsindex der Bondingmasse, derart ausgewählt sind, dass ein Übergang zwischen dem elektrooptischen Display und der transparenten Deckscheibe nicht oder nur kaum wahrnehmbar ist. Im Stand der Technik ist es bekannt, die Abstandshalter als spritzgegossene Bauteile auszuführen oder zwischen die transparente Deckscheibe und das elektrooptische Display Kugeln mit einem definierten Durchmesser anzuordnen und so den Abstand zwischen dem elektrooptischen Display und der transparenten Deckscheibe einzustellen. Durch Toleranzen der spritzgegossenen Abstandshalter oder der Kugeln konnte es zu einer Schieflage der aufzusetzenden transparenten Deckscheibe oder bei einer mangelnden Benetzung zu störenden Luftblasen kommen. Aufgabe der Erfindung ist es daher, ein elektrooptisches Display mit einer transparenten Deckscheibe anzugeben, wobei ein Abstand zwischen dem elektrooptischen Display und der transparenten Deckscheibe mittels Abstandshaltern eingestellt ist und so ein Zwischenraum vorhanden ist und der Zwischenraum mit einer Bondingmasse ausgefüllt ist, bei der die eine Schräglage oder eine unzureichende Befüllung mit der Bondingmasse vermieden wird. Diese Aufgabe wird dadurch gelöst, dass die Abstandshalter gedruckt sind. Durch diesen Druck kann ein besonders exakter Abstand eingestellt werden. Weiterhin ist die Toleranz zwischen den einzelnen gedruckten Abstandshaltern sehr gering, so dass der Abstand zwischen dem elektrooptischen Display und der transparenten Deckscheibe sehr gering, beispielsweise 0,4 mm, gewählt werden kann. Besonders einfach kann der Druck ausgeführt werden, wenn die Abstandshalter auf die transparente Deckscheibe gedruckt sind. Eine besonders optisch ansprechende Ausführung wird dadurch realisiert, dass die transparente Deckscheibe auf ihre einem Beobachter entgegengesetzten Seite mit einem transparenten Rahmen bedruckt ist, und auf diesen Rahmen dann die transparenten Abstandshalter gedruckt werden. Hierdurch werden die Abstandshalter für einen Betrachter des elektrooptischen Displays und der transparenten Deckscheibe nicht wahrnehmbar. The invention relates to an electro-optical display with a transparent cover plate. In the prior art, such displays are known, wherein a distance between the electro-optical display and the transparent cover plate is adjusted by means of spacers, and so a gap is present, and the gap is filled with a bonding compound. This additional transparent cover plate and the additional bonding on the one hand, the electro-optical display is mechanically protected. Furthermore, the bonding improves the optical properties of the electro-optical display. When selecting a suitable adhesive, care is taken to ensure that the optical properties, such as the refractive index of the bonding compound, are selected such that a transition between the electro-optical display and the transparent cover disk is barely noticeable or barely perceptible. In the prior art, it is known to make the spacers as injection-molded components or to arrange balls with a defined diameter between the transparent cover disk and the electro-optical display, thus adjusting the distance between the electro-optical display and the transparent cover disk. Tolerances of the injection-molded spacers or balls could lead to an imbalance of the transparent cover disk to be applied or, in the case of a lack of wetting, to disturbing air bubbles. The object of the invention is therefore to provide an electro-optical display with a transparent cover plate, wherein a distance between the electro-optical display and the transparent cover plate is adjusted by means of spacers and so a gap is present and the space is filled with a bonding compound, in which the one Slanting or insufficient filling with the bonding compound is avoided. This object is achieved in that the spacers are printed. By this pressure, a particularly accurate distance can be adjusted. Furthermore, the tolerance between the individual printed spacers is very small, so that the distance between the electro-optical display and the transparent cover plate can be very small, for example, 0.4 mm, can be selected. The pressure can be carried out particularly simply if the spacers are printed on the transparent cover pane. A particularly visually appealing embodiment is realized in that the transparent cover plate is printed on its side opposite to an observer with a transparent frame, and then the transparent spacers are printed on this frame. As a result, the spacers for a viewer of the electro-optical display and the transparent cover disc are not noticeable.
Wenn die Abstandhalter aus einer blindenschrifttauglichen Druckfarbe bestehen, können die Abstandshalter mit nur einem einzigen Druck hergestellt werden. Bei Verwendung einer anderen Druckfarbe können die Abstandshalter auch durch Schablonendruck oder durch Siebdruck aufgebracht sein. If the spacers are made from a Braille-ready ink, the spacers can be made with just a single print. When using another printing ink, the spacers may also be applied by stencil printing or screen printing.
Besonders dauerhaft ist das elektrooptische Display mit einer transparenten Deckscheibe, wenn das elektrooptische Display als Flüssigkristalldisplay ausgestaltet ist. Particularly durable is the electro-optical display with a transparent cover, when the electro-optical display is designed as a liquid crystal display.
Wenn das elektrooptische Display als elektrolumineszierendes Display oder als organisches Leuchtdiodendisplay ausgestaltet ist, ist eine separate Beleuchtung des elektrooptischen Displays nicht erforderlich. If the electro-optical display is designed as an electroluminescent display or as an organic light-emitting diode display, a separate illumination of the electro-optical display is not required.
Besonders einfach kann die transparente Deckscheibe hergestellt werden, wenn sie aus Kunststoff besteht. Dieser Kunststoff kann beispielsweise Polymethylmethacrylat (PMMA), Polycarbonat (PC) oder Polyethylen (PE) sein.Particularly simple, the transparent cover plate can be made if it is made of plastic. This plastic may be, for example, polymethyl methacrylate (PMMA), polycarbonate (PC) or polyethylene (PE).
Wenn die transparente Deckscheibe aus Glas besteht, ist sie besonders dauerhaft, da Glas in der Regel härter als Kunststoff ist und somit die Deckscheibe weniger kratzempfindlich ist. If the transparent cover glass is made of glass, it is particularly durable, since glass is usually harder than plastic and thus the cover plate is less sensitive to scratching.
Die Erfindung wird nachfolgend anhand der Figuren näher beschrieben. Es zeigen:The invention will be described in more detail with reference to FIGS. Show it:
In
In
Hierbei gelangen die Lichtstrahlen von den Lichtquellen
Der externe Rahmen
Der externe Rahmen
Die Größenverhältnisse der einzelnen dargestellten Bauteile zueinander entsprechen nicht der Realität, sind aber wegen der besseren Wahrnehmbarkeit der einzelnen Bauteile so gewählt.The proportions of the individual components shown to one another do not correspond to reality, but are chosen because of the better perceptibility of the individual components.
Claims (13)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014212146.9A DE102014212146A1 (en) | 2014-06-25 | 2014-06-25 | Electro-optical display with a transparent cover disc |
PCT/EP2015/064202 WO2015197664A1 (en) | 2014-06-25 | 2015-06-24 | Electro-optical display with a transparent cover pane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014212146.9A DE102014212146A1 (en) | 2014-06-25 | 2014-06-25 | Electro-optical display with a transparent cover disc |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014212146A1 true DE102014212146A1 (en) | 2015-12-31 |
Family
ID=53498977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014212146.9A Pending DE102014212146A1 (en) | 2014-06-25 | 2014-06-25 | Electro-optical display with a transparent cover disc |
Country Status (2)
Country | Link |
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DE (1) | DE102014212146A1 (en) |
WO (1) | WO2015197664A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017205614A1 (en) | 2017-04-03 | 2018-10-04 | Volkswagen Aktiengesellschaft | Method for producing a display device with display and display device with display |
DE102017205959A1 (en) | 2017-04-07 | 2018-10-11 | Volkswagen Aktiengesellschaft | Method for producing a display device, display device produced therewith and method for producing a real glass-plastic hybrid component |
DE102020118044A1 (en) | 2020-07-08 | 2022-01-13 | Preh Gmbh | A display arrangement with a transparent cover and a pixel matrix display fixed thereto and associated assembly method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6081071A (en) * | 1998-05-18 | 2000-06-27 | Motorola, Inc. | Electroluminescent apparatus and methods of manufacturing and encapsulating |
US20030201155A1 (en) * | 2002-04-26 | 2003-10-30 | Seiki Katakami | Touch panel |
US20050269944A1 (en) * | 2004-06-08 | 2005-12-08 | Au Optronics Corp. | Organic electroluminescent display and fabricating method thereof |
DE102012224352A1 (en) * | 2012-12-21 | 2014-06-26 | Continental Automotive Gmbh | Electro-optical display with a transparent cover |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7927533B2 (en) * | 2007-04-04 | 2011-04-19 | Sony Chemical & Information Device Corporation | Method for manufacturing image display device |
KR101058730B1 (en) * | 2007-09-28 | 2011-08-22 | 가시오게산키 가부시키가이샤 | Display element with integral protective plate and display device using same |
KR101146994B1 (en) * | 2010-06-10 | 2012-05-22 | 삼성모바일디스플레이주식회사 | A display apparatus and a method for manufacturing the same |
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2014
- 2014-06-25 DE DE102014212146.9A patent/DE102014212146A1/en active Pending
-
2015
- 2015-06-24 WO PCT/EP2015/064202 patent/WO2015197664A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6081071A (en) * | 1998-05-18 | 2000-06-27 | Motorola, Inc. | Electroluminescent apparatus and methods of manufacturing and encapsulating |
US20030201155A1 (en) * | 2002-04-26 | 2003-10-30 | Seiki Katakami | Touch panel |
US20050269944A1 (en) * | 2004-06-08 | 2005-12-08 | Au Optronics Corp. | Organic electroluminescent display and fabricating method thereof |
DE102012224352A1 (en) * | 2012-12-21 | 2014-06-26 | Continental Automotive Gmbh | Electro-optical display with a transparent cover |
Also Published As
Publication number | Publication date |
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WO2015197664A1 (en) | 2015-12-30 |
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Legal Events
Date | Code | Title | Description |
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R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R081 | Change of applicant/patentee |
Owner name: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE GMBH, 30165 HANNOVER, DE |
|
R081 | Change of applicant/patentee |
Owner name: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, 30165 HANNOVER, DE |