EP3704539A1 - Verfahren und vorrichtung zur herstellung einer anzeigeeinrichtung, welche ein display und ein gewölbtes deckglas aufweist - Google Patents
Verfahren und vorrichtung zur herstellung einer anzeigeeinrichtung, welche ein display und ein gewölbtes deckglas aufweistInfo
- Publication number
- EP3704539A1 EP3704539A1 EP18782714.2A EP18782714A EP3704539A1 EP 3704539 A1 EP3704539 A1 EP 3704539A1 EP 18782714 A EP18782714 A EP 18782714A EP 3704539 A1 EP3704539 A1 EP 3704539A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cover glass
- display
- frame
- display device
- bonding material
- 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.)
- Withdrawn
Links
- 239000006059 cover glass Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000011159 matrix material Substances 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- G02F1/133308—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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
- G02F1/13332—Front frames
-
- 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
-
- 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
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Definitions
- Method and device for producing a display device which has a display and a curved cover glass
- the invention relates to a method and a device for producing a display device.
- a display device of the kind in question is a structural unit which has a display and a transparent cover glass (cover) protecting the display.
- a display is in particular a screen for the visual display of variable or dynamic information.
- the display can z.
- An intermediate space between the display or the upper side of the display and the cover glass or cover glass inner surface is filled with a transparent bonding material which on the one hand connects the cover glass and the display, in particular adheres, and on the other reduces optical distortions and reflections.
- Such display devices are also used in motor vehicles, in particular in the interior, and can also be referred to as motor vehicle display devices.
- the cover glass can then have a shape or contour adapted to the installation location of the display device and can, for example, be spherically curved or formed with another free-form contour.
- EP 1 502 802 A1 describes a shift knob of a shift lever with display and curved transparent cover.
- DE 10 2012 224 352 A1 describes an electro-optical display with a transparent cover.
- the transparent cover has a curved or configured as any free-form surface surface, whereby a better fit into the environment succeeds.
- a transparent bonding material is present, which completely fills the space between the transparent cover and the electro-optical display.
- the invention has for its object to provide a method and apparatus for the precise manufacture of a display device with curved cover glass.
- the object is achieved by an inventive method according to claim 1 and by a device according to the invention according to the independent claim.
- the invention also extends to the preferred use of a display device according to the invention. Further developments and embodiments of the invention will become apparent for all subject matter of the dependent claims, the following description of the invention and also from the drawing.
- the inventive method for producing a display device comprises the steps:
- cover glass wherein the cover glass has a domed cover glass outer surface (which later faces the viewer) and a planar cover glass inner surface (which later faces the display), and providing the display, which is in particular a prefabricated display module acting;
- the cover glass is arched on its outer surface (outwards), which may also mean a free-form contour, and is planar or planar on its inner surface.
- the display preferably has a substantially planar or planar upper side. te on. This results in a homogeneous gap or gap between the planar inner surface of the cover glass and the likewise planar upper side of the display, which favors a bubble-free distribution and homogeneous curing of the bonding material.
- For putting in the cover glass can be made very thin in the edge region.
- the die and the hold-down can be components of a device (tool device), in particular a device according to the invention.
- the matrix can be formed with a cavity conforming to the outer surface of the domed cover glass (the cavity is formed in particular with a negative contour of the cover glass outer surface), into which the cover glass can be inserted in a form-fitting and thus impermeable manner and then fixed by placing the frame-like hold-down ,
- the cover glass inserted into the cavity preferably ends flush with the cavity and does not protrude, so that the edge region is protected.
- the frame-like hold-down is preferably designed as a circumferential frame and has an inner recess or frame opening.
- the frame-like hold-down fixed the cover glass circumferentially in the edge region.
- the inner recess of the hold-down acts when placing the display on the one hand as a positioning aid (template) and on the other hand as a guide to prevent lateral displacement and / or tilting of the display.
- the guidance of the display can
- the display of this When placing the display of this can first be inserted into the inner recess of the frame-like blank holder and then in the inner recess axially (ie, along a straight axis of movement) are moved in the direction of the cover glass.
- the bonding material is pressed and distributed between the cover glass and the display, whereby sometimes gaps or layer thicknesses of only a few tenths of a millimeter are achieved.
- the force or pressure can be applied to the display by means of a punch, whereby the punch can be guided on the hold-down device (indirect guidance). If necessary, only the movement in one direction has to be monitored.
- the axial displacement of the display takes place in the direction of the cover glass with a control, which is in particular a force, displacement or position control. This is a precise This distance (gap) between coverslip and display can be produced.
- at least this shifting of the display is carried out automatically.
- the curing of the bonding material can still take place during the fixation of the cover glass to the matrix, as soon as the display has reached its end position.
- the bonding material can be self-curing.
- an energy-activatable bonding material is used, which can be cured in particular by means of UV radiation or UV light.
- the UV irradiation preferably takes place via the matrix or through the matrix, as explained in more detail below.
- a frame-like hold-down with which the inserted into the cavity cover glass, in particular in the edge region, can be fixed, wherein the frame-like hold-down has an inner recess for positioning and guiding the display;
- the die is preferably formed from a material that is transparent in particular to UV light.
- the bonding material can then be irradiated with UV light through the matrix and the transparent cover glass and cured.
- the homogeneous spacing or gap between cover glass and display promotes effective and homogeneous curing of the bonding material.
- the matrix is formed, in particular, from the same material or material as the cover glass (for example soda-lime glass, aluminum silicate glass, borosilicate glass, polycarbonate or polymethyl methacrylate), which distributes the energy loss evenly.
- the method according to the invention and the device according to the invention enable high production precision in mass production.
- a display device produced by the method according to the invention and / or the device according to the invention which is in particular a motor vehicle display device, is characterized in that the cover glass has a curved outer surface and a planar inner surface, and in particular the planar inner surface of the cover glass and a planar top side of the display facing this inner surface are surface-parallel.
- the cover glass has a curved outer surface and a planar inner surface, and in particular the planar inner surface of the cover glass and a planar top side of the display facing this inner surface are surface-parallel.
- Such a display device can be used in a motor vehicle, construction vehicle or the like as an integrated display device in the shift knob of a gear or speed selector or the like, wherein it is provided in particular that the outer surface of the cover glass is ergonomically shaped.
- the display or display module can be equipped with a touch application (touch panel).
- a touch screen film can be used, which is arranged between the display and cover glass or is laminated on the inside of the cover glass.
- FIG. 1 shows a device 100 with a die 110 and a frame-like hold-down 120. Further, a cover glass 10 is shown, which has a curved or spherical outer surface 12 and a planar inner surface 14. The die 1 10 is formed with a cavity 12 conformed to the spherically curved outer surface 12 of the cover glass 10.
- the hold-down device 120 has a frame-like enclosed inner recess 122.
- the cover glass 10 is inserted with the inner surface 14 on top into the cavity 12 of the die 110, as shown in FIG. 2, and fixed by placing the frame-like hold-down 120, as shown in FIG.
- a protective film in particular a transparent protective film
- the frame-like hold-down 1 10 can be placed in a rectilinear motion or in a pivoting movement and then presses circumferentially the cover glass 10 against the die 1 10, whereby the edge region of the cover glass 10 is virtually clamped between the die 1 10 and hold 120.
- the inner surface 14 of the cover glass 10 is accessible via the inner recess 122 of the frame-like blank holder 120. If the coverslip 10 is inadvertently inserted incorrectly, fixing with the hold-down 120 is impossible; h., the misalignment or misalignment must first be corrected.
- the display 20 can be placed.
- a bonding material 30 is applied to the inner surface 14 of the fixed cover glass 10, as shown in FIG. (The bonding material can also be applied at an earlier time.)
- the amount or the volume of the applied bonding material 30 is precisely determined and can from the size of the active display surface and the proposed gap between the display 20 and cover glass 10, and optionally a shrinkage , be calculated.
- the display 20 is inserted with downwardly facing top 22 in the recess or opening 122 of the frame-like blank holder 120, wherein the hold-down 120 acts like a template positioning aid.
- the inserted display 20 is then axially displaced in the direction of the fixed cover slip 10 by means of a punch 130 or the like belonging to the device 100, as shown in FIG.
- There- at the bonding material 30 is pressed between cover glass 10 and display 20.
- the inner dimensions of the hold-down recess 122 are adapted to the lateral outer dimensions of the display 20, such that the lateral inner surfaces of the recess 122 act as a guide (see reference F) and thus a lateral displacement and / or tilting of the display 20 is prevented.
- the display 20 can only be moved perpendicular to the die 1 10, since it is mounted in the frame-like holding-down device 120 and guided laterally. As a result, a surface parallelism between the cover glass inner surface 14 and the facing display top 22 and a uniform bonding layer are ensured.
- the display 20 is displaced in particular by means of regulation in the direction of the cover glass 10 or the die 1 10 until an intended distance or gap between the inner surface 14 of the cover glass 10 and the top 22 of the display 20 is set.
- the bonding material 30 does not fill the entire gap, but covers only the active display surface. D. h., The gap or space between cover glass 10 and display 20 is only partially filled with bonding material 30. Thus, the bonding material 30 has lateral freewheel during compression.
- the cover glass 10 may have an imprinted edge on the inside (also as an underprint or
- the bonding material 30 is cured.
- the curing takes place by means of UV light.
- a lamp 140 is arranged, which radiates surface UV light, as shown in Fig. 6.
- the device 100 may have a suction device, not shown, with the emerging during the curing of the bonding material 30 vapors can be sucked.
- the punch 130 can be moved back and the hold-down 120 can be removed, so that the display device produced can be removed.
- the previously explained method steps are preferably carried out automatically by means of suitable automation technology.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017219589.4A DE102017219589A1 (de) | 2017-11-03 | 2017-11-03 | 11Verfahren und Vorrichtung zur Herstellung einer Anzeigeeinrichtung, welche ein Display und ein gewölbtes Deckglas aufweist |
| PCT/EP2018/076854 WO2019086189A1 (de) | 2017-11-03 | 2018-10-02 | Verfahren und vorrichtung zur herstellung einer anzeigeeinrichtung, welche ein display und ein gewölbtes deckglas aufweist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3704539A1 true EP3704539A1 (de) | 2020-09-09 |
Family
ID=63787944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18782714.2A Withdrawn EP3704539A1 (de) | 2017-11-03 | 2018-10-02 | Verfahren und vorrichtung zur herstellung einer anzeigeeinrichtung, welche ein display und ein gewölbtes deckglas aufweist |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3704539A1 (de) |
| DE (1) | DE102017219589A1 (de) |
| WO (1) | WO2019086189A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20311729U1 (de) | 2003-07-30 | 2003-10-02 | Eissmann GmbH, 72574 Bad Urach | Schalthebel mit Display |
| JP5188833B2 (ja) * | 2008-02-21 | 2013-04-24 | 株式会社ジャパンディスプレイイースト | 表示装置の製造方法 |
| DE102012112385B8 (de) * | 2012-08-07 | 2018-11-22 | Pioptix Gmbh | Verfahren zur durchsichtigen Verklebung von transparenten Schichten sowie mit diesem Verfahren hergestellte Displayvorrichtung |
| DE102012224352A1 (de) * | 2012-12-21 | 2014-06-26 | Continental Automotive Gmbh | Elektrooptische Anzeige mit einer transparenten Abdeckung |
-
2017
- 2017-11-03 DE DE102017219589.4A patent/DE102017219589A1/de not_active Withdrawn
-
2018
- 2018-10-02 EP EP18782714.2A patent/EP3704539A1/de not_active Withdrawn
- 2018-10-02 WO PCT/EP2018/076854 patent/WO2019086189A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019086189A1 (de) | 2019-05-09 |
| DE102017219589A1 (de) | 2019-05-09 |
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