EP4150249A1 - Anzeigeelement mit im randbereich reduzierter hintergrundbeleuchtung - Google Patents
Anzeigeelement mit im randbereich reduzierter hintergrundbeleuchtungInfo
- Publication number
- EP4150249A1 EP4150249A1 EP21726552.9A EP21726552A EP4150249A1 EP 4150249 A1 EP4150249 A1 EP 4150249A1 EP 21726552 A EP21726552 A EP 21726552A EP 4150249 A1 EP4150249 A1 EP 4150249A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- display
- display element
- light guide
- area
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
-
- 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
- G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
-
- 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
- G02F1/1336—Illuminating devices
Definitions
- the present invention relates to a display element with a background lighting that is reduced in the edge area.
- Non-self-illuminating, transmissive display elements such as LCDs (LCD:
- Liquid crystal display requires a backlight to display images.
- the task of the backlight is to illuminate the display element as uniformly as possible over the entire active surface, in order to produce a display that is as homogeneous as possible right into the edge area.
- a maximally bright display is achieved in that the alignment of a liquid crystal layer of the display element in combination with the alignment of polarizing filters allows maximum transmission.
- a dark or black display content, e.g. in the edge area, is achieved through minimal transmission, which in contrast to self-illuminating displays is always greater than zero.
- a display element can be arranged behind a design surface, for example a decorative film, a real wood veneer, artificial leather, etc. If the display element is a non-self-illuminating display element, then Depending on the brightness conditions between the display and the surroundings, an undesirable so-called paspartout or postcard effect can become visible. In this case, the edge area of the display shines through the overlying design surface. Such an effect is shown by way of example in FIG. 1. A corresponding display without a passpartout or postcard effect is shown in FIG. 2
- a display element has a display panel and a backlight, arranged behind the display panel, with a light guide with edge coupling.
- the background lighting is configured in such a way that a light intensity of the background lighting is lower in an edge area of the display panel than in a central area of the display panel.
- the occurrence of a passpartout or postcard effect is prevented or at least mitigated in that the Light intensity in the edge area, ie at the transition between the display and the environment, is reduced. In this way, the transition between the display and the surroundings is less clear or even imperceptible to the viewer.
- the light guide has a microstructuring for coupling out light, which is designed such that less light is coupled out of the light guide in an area of the light guide for backlighting the edge area of the display panel than in an area of the light guide for backlighting the central one Area of the display panel.
- the light guide has a microstructuring.
- the microstructuring is usually designed in such a way that the most homogeneous possible illumination is achieved.
- the microstructuring is adapted in such a way that less light is coupled out of the light guide in the edge area.
- the microstructuring is arranged on the top of the light guide, on the bottom of the light guide or on the top and bottom of the light guide.
- the arrangement of the microstructuring on the upper side has the advantage that the light is essentially coupled out in the direction of the display panel.
- a reflector below the light guide there is also the possibility of arranging the microstructuring on the underside of the light guide and of coupling out light essentially in the direction of the reflector. A combination of both approaches is also possible.
- a location-dependent coupling out of the light from the light guide is achieved by a location-dependent number of coupling-out structures per area or by a location-dependent property of the coupling-out structures.
- the microstructuring in the edge area be thinned out.
- the microstructure elements of the microstructuring to have other properties that are dependent on the location, at least in the edge area, for example a depth structure that is dependent on the location, angle of inclination that is dependent on the location, or a location-dependent variable. In this way, the intensity of the light that is coupled out of the light guide by the microstructuring can be reduced to a desired value in the edge area.
- the light intensity of the backlighting has a gradient at least in the edge area of the display panel.
- the gradient gently fades out the display in the direction of the edge area.
- the decrease in light intensity can take place with a uniform gradient as well as with an almost constant course in the inner area and a steep gradient in the respective fade-out area.
- the backlight has at least one light-influencing masking element.
- the backlighting can mainly use common components, i.e. a custom-made product can be dispensed with. It is sufficient to provide a masking element at a suitable point.
- the light-influencing masking element is an optical layer of an optical layer stack of the background lighting.
- Optical layer stacks are used for different purposes.
- the layers can be wavelength-selective filters, polarization films or films that influence the direction of propagation or other optical properties.
- the light influencing The masking element can be introduced as an additional layer in a simple manner as part of the production of the layer stack.
- the light-influencing masking element is an imprint applied to the light guide or to an optical layer stack of the background lighting.
- the use of printing has the advantage that no additional element is required that has to be manufactured, adjusted and connected to the other elements.
- the light-influencing masking element is an optical layer arranged on a reflector or an imprint applied to the reflector.
- Non-self-illuminating transmissive display elements often have a reflector which serves to guide as much as possible of the light that does not leave the light guide in the direction of the display panel back into the light guide or in the direction of the display panel.
- a masking element can also be arranged on such a reflector. This has the advantage that a relatively large amount of installation space is available in the area below the display panel.
- the use of printing has the advantage that no additional element is required that has to be manufactured, adjusted and connected to the other elements.
- the light-influencing masking element has a location-dependent transmission.
- the location-dependent transmission can be achieved, for example, by means of light-absorbing or light-scattering elements embedded in the masking element.
- the location-dependent transmission can also be achieved by varying a microstructure of the masking element or by changing the phase of the material of the masking element. This allows the backlighting of the display panel to be set in a very controlled manner depending on the location.
- a display element according to the invention is preferably used for realizing a
- Means of transport or in a household appliance Means of transport or in a household appliance.
- Fig. 1 shows schematically a postcard effect display
- Fig. 2 shows schematically a display without a postcard effect
- FIG. 3 shows schematically a first exemplary embodiment of a display element according to the invention
- Fig. 4 is a plan view of an example of a light guide for use in
- FIG. 5 shows schematically a second exemplary embodiment of a display element according to the invention
- FIG. 6 shows schematically a third exemplary embodiment of a display element according to the invention.
- FIG. 7 shows schematically a fourth exemplary embodiment of a display element according to the invention.
- FIG. 8 shows schematically a fifth exemplary embodiment of a display element according to the invention
- 9 shows schematically a sixth exemplary embodiment of a display element according to the invention.
- Fig. 10 shows schematically a seventh embodiment of a display element according to the invention.
- Fig. 1 shows schematically a display with a paspartout or postcard effect. It can be seen how a known display element, which is arranged behind a translucent layer, acts on a viewer.
- the translucent layer is a decorative surface 100.
- the decor of the decorative surface 100 is indicated in FIG. 1 by hatching.
- the dimensions of the display element are indicated by means of corner elements 101.
- Several symbols 102 are represented by the display element.
- light passes through the decor surface 100 in the entire transparent display area 103 of the decor surface 100, even where no symbols 102 are displayed. This leads to a brightening of the display area 103 that is perceptible to the viewer, which is shown in FIG.
- FIG. 2 shows a display without a passpartout or postcard effect behind a decorative surface 100.
- the dimensions of the display element are again indicated by means of corner elements 101.
- the background lighting of the display element is designed such that no or at least hardly any light passes through the decorative surface 100 at the edges of the display area 103, while the intensity of the backlighting is unchanged in a central area 105 of the display area. This is indicated in FIG. 2 by the variable line thickness of the hatching.
- the location-dependent backlighting means that there are no disruptive visible edges at the edges of the display area 103, i.e. the pass-partout or postcard effect is avoided.
- the display element 1 has a housing 4 to which a cover plate 6 is fastened by means of a fastening element 5. This is provided with a protective layer 7 on its outside facing away from the housing 4.
- the cover plate 6 has a light-permeable display area 103, which is designed here as a decorative element, for example as a wood decor. This can be produced, for example, by back injection molding or film back injection molding.
- an externally illuminated display panel 2 is arranged, for example a liquid crystal display panel (English: LCD panel).
- the display panel 2 extends somewhat beyond the visible display area VDA. It is connected to the cover plate 6 by means of an optically clear connecting element 8 tied together. This connection, also referred to as “optical bonding”, takes place, for example, by means of a curable, optically clear liquid or by means of an optically clear solid, for example a film, which is provided with an adhesive layer on both sides. Alternatively, there can also be an air gap at this point.
- the display panel 2 is connected via a control line 9 to a control unit, not shown here, which supplies it with energy and with image information to be displayed.
- the display panel 2 is illuminated by a backlight 3.
- the backlight 3 has a light source 30 arranged in the lateral area of the housing 4. This is preferably a light emitting diode (LED) or a light source based on LED technology. A fluorescent tube, a laser light source or other suitable light sources can also be used here.
- the light generated by the light source 30 is coupled into a light guide 31, which has a microstructuring 32, 33 on its underside or on its top or both on its underside and on its top, through which light is coupled out of the light guide 31.
- the microstructuring 32, 33 has an irregular structure when viewed on a small scale.
- a reflector 34 is arranged, for example a reflective film or a reflective coating on the inside of the housing 4.
- the reflector 34 also extends laterally upwards from the light guide 31 in order to get as much of the light as possible that does not enter the light guide 31 Leaves towards the display panel 2, to lead again into the light guide 31 or in the direction of the display panel 2.
- An optical layer stack 35 is arranged between the light guide 31 and the display panel 2.
- the layers of the optical layer stack 35 influence the light passing through them in different ways, depending on the application. These can be wavelength-selective filters, polarization films or films that influence the direction of propagation or other optical properties.
- diaphragms 10 are arranged in an edge area, which shade stray light.
- a double arrow indicates the entire display area VDA of the display element 1 that is visible to a viewer.
- masking areas FOA are indicated by means of double arrows.
- the image shown by the display element 1 from the inside to the outside in the direction of an edge of the visible display area VDA becomes increasingly less visible; it is faded out.
- the display element 1 has a background lighting that is reduced in the edge area.
- the microstructuring 32, 33 viewed on a large scale from the inside to the outside, has a gradient, for example a decreasing number of microstructure elements per area.
- the microstructuring 32, 33 is thinned out in the edge area. It is also possible for the microstructure elements of the microstructuring 32, 33 to have other location-dependent properties, at least in the edge area, for example a location-dependent depth structure, a location-dependent angle of inclination or a location-dependent variable.
- the intensity of the light that is decoupled from the light guide 31 by the microstructuring 32, 33 decreases from the inside to the outside, ie in the fade-out area FOA a light decoupling from the inside to the outside from 100% to x% is achieved.
- the value of x can go down to zero.
- FIG. 4 shows a plan view of an example of a light guide 31 for use in the display element 1 from FIG. 3.
- zones 311-314 are indicated schematically from the inside to the outside, which have a light decoupling of decreasing strength from the inside to the outside.
- a different number of microstructure elements per area can be provided in the different zones 311-314, or the microstructure elements are designed differently in such a way that they cause light outcoupling of different strengths in the different zones 311-314.
- a central zone 311 has the greatest light output.
- a zone 312 adjoining this to the outside still has a large amount of light coupling out.
- a zone 313 adjoining this to the outside still has at least a small amount of light coupling out.
- An outermost zone 314 has no or hardly any light outcoupling.
- Such a light guide 31 has a characteristic with which the light distribution shown in FIG. 2 can be achieved.
- FIG. 5 schematically shows a second exemplary embodiment of a display element 1 according to the invention. It largely corresponds to the display element 1 shown in FIG. 3, but the decreasing light intensity in this exemplary embodiment is achieved by a masking element 36.
- this is designed as an optical layer 361, for example as a film or as a rigid or flexible plate, which has a transmission that decreases in its edge area 360 from the inside to the outside. The transmission decreases from 100% in the inner area to x% in the outer area of the edge area 360, so that a blanking area FOA is realized. The value of x can go down to zero.
- the change in transmission can be achieved, for example, by light-absorbing or light-scattering elements embedded in the optical layer 361.
- the change in transmission can also be achieved by changing a microstructure of the optical layer 361 in the edge region 360 or by changing the phase of the material of the optical layer 361 in this region.
- the optical layer 361 is arranged in FIG. 5 as the uppermost layer on the optical layer stack 35, but it can also be on another Position in the optical layer stack 35 can be arranged.
- FIG. 7 schematically shows a fourth exemplary embodiment of a display element 1 according to the invention. It largely corresponds to the display element 1 shown in FIG FOA is decreasing.
- the use of printing 363 has the advantage that no additional element is required that has to be manufactured, adjusted and connected to the other elements.
- FIG 8 schematically shows a fifth exemplary embodiment of a display element 1 according to the invention. It largely corresponds to the display element 1 shown in FIG applied printing 364, the transmission of which decreases from the inside to the outside in the fade-out area FOA.
- FIG 9 schematically shows a sixth embodiment of a display element 1 according to the invention. It largely corresponds to the display element 1 shown in FIG as a rigid or flexible plate with location-dependent transmission in the edge area, similar to the one described above.
- FIG. 10 schematically shows a seventh exemplary embodiment of a display element 1 according to the invention. It largely corresponds to the display element 1 shown in FIG. 9, but the masking element 36 is in this In the case of an imprint 366 applied to the reflector 34. There is also the possibility that the reflector 34 is designed as a film to which a printed surface is applied as a masking element 36. Another variant consists in that the reflector 34 is designed as a vapor-deposited metal layer which has less material in the masking area FOA, for example a thinner layer or a layer provided with holes, ie non-reflective areas. In these variants, the reflectivity decreases from the inside to the outside in the masking area FOA, which means that correspondingly less light is incident in the edge area of the display panel 2.
- optical layers 361, 362, 365 and prints 363, 364, 366 are examples of light-influencing masking elements 36 according to the invention.
- a combination of the first exemplary embodiment with one of the further exemplary embodiments and any other combination, including multiple combinations of the described exemplary embodiments, are suitable. to achieve the desired result. These combinations are also solutions according to the invention, even if they are not described in detail here.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020206158 | 2020-05-15 | ||
| DE102021200857.7A DE102021200857A1 (de) | 2020-05-15 | 2021-02-01 | Anzeigeelement mit im Randbereich reduzierter Hintergrundbeleuchtung |
| PCT/DE2021/200053 WO2021228331A1 (de) | 2020-05-15 | 2021-05-03 | Anzeigeelement mit im randbereich reduzierter hintergrundbeleuchtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4150249A1 true EP4150249A1 (de) | 2023-03-22 |
Family
ID=78280678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21726552.9A Pending EP4150249A1 (de) | 2020-05-15 | 2021-05-03 | Anzeigeelement mit im randbereich reduzierter hintergrundbeleuchtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11966069B2 (de) |
| EP (1) | EP4150249A1 (de) |
| KR (1) | KR102795422B1 (de) |
| CN (1) | CN115552172A (de) |
| DE (1) | DE102021200857A1 (de) |
| WO (1) | WO2021228331A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4336483A1 (de) | 2022-09-06 | 2024-03-13 | Continental Automotive Technologies GmbH | Anzeigevorrichtung, verfahren, computerprogrammcode und vorrichtung zum bereitstellen einer korrekturkarte für eine anzeigevorrichtung, verfahren und computerprogrammcode zum betreiben einer anzeigevorrichtung |
| JP7488307B2 (ja) | 2022-10-12 | 2024-05-21 | シャープディスプレイテクノロジー株式会社 | 表示装置 |
| KR20240084243A (ko) * | 2022-12-06 | 2024-06-13 | 삼성전자주식회사 | 디스플레이 장치의 제어방법, 컴퓨터 판독가능 저장 매체 및 디스플레이 시스템 |
| CN118942330A (zh) | 2023-05-10 | 2024-11-12 | 群创光电股份有限公司 | 显示装置 |
| DE102024129008A1 (de) * | 2024-10-08 | 2026-04-09 | Audi Aktiengesellschaft | Anzeigesystem |
| DE102024130933B3 (de) | 2024-10-23 | 2025-12-31 | Audi Aktiengesellschaft | Kraftfahrzeug-Anzeigevorrichtung für einen Innenraum eines Kraftfahrzeugs, Kraftfahrzeug umfassend zumindest eine Kraftfahrzeug-Anzeigevorrichtung und Verfahren zum Betreiben einer Kraftfahrzeug-Anzeigevorrichtung |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170031083A1 (en) * | 2015-06-09 | 2017-02-02 | Radiant Opto-Electronics (Suzhou) Co. Ltd. | Backlight module and display device including the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667289A (en) * | 1989-05-18 | 1997-09-16 | Seiko Epson Corporation | Background lighting apparatus for liquid crystal display |
| CN1162757A (zh) * | 1995-03-06 | 1997-10-22 | 株式会社日立制作所 | 具有侧边型背照明系统的液晶显示器 |
| KR100541262B1 (ko) * | 1998-08-26 | 2006-04-12 | 삼성전자주식회사 | 백라이트 어셈블리 |
| TW501079B (en) * | 1999-09-17 | 2002-09-01 | Matsushita Electric Industrial Co Ltd | Image display device |
| US6985291B2 (en) * | 2001-10-01 | 2006-01-10 | 3M Innovative Properties Company | Non-inverting transflective assembly |
| AU2003273046A1 (en) * | 2002-10-22 | 2004-05-13 | Sharp Kabushiki Kaisha | Backlight unit and liquid crystal display unit using backlight unit |
| US7478942B2 (en) * | 2003-01-23 | 2009-01-20 | Samsung Electronics Co., Ltd. | Light guide plate with light reflection pattern |
| KR101219591B1 (ko) * | 2010-10-07 | 2013-01-09 | 국민대학교산학협력단 | 백라이트 도광판 및 그의 제조 방법 |
| CN104459871B (zh) * | 2014-12-10 | 2017-12-01 | 深圳市华星光电技术有限公司 | 导光板、背光模组及显示装置 |
| CN106292055A (zh) * | 2015-06-09 | 2017-01-04 | 瑞仪光电(苏州)有限公司 | 量子点增强薄膜和背光模块 |
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-
2021
- 2021-02-01 DE DE102021200857.7A patent/DE102021200857A1/de active Pending
- 2021-05-03 EP EP21726552.9A patent/EP4150249A1/de active Pending
- 2021-05-03 WO PCT/DE2021/200053 patent/WO2021228331A1/de not_active Ceased
- 2021-05-03 CN CN202180035058.8A patent/CN115552172A/zh active Pending
- 2021-05-03 US US17/925,239 patent/US11966069B2/en active Active
- 2021-05-03 KR KR1020227037766A patent/KR102795422B1/ko active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170031083A1 (en) * | 2015-06-09 | 2017-02-02 | Radiant Opto-Electronics (Suzhou) Co. Ltd. | Backlight module and display device including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220160098A (ko) | 2022-12-05 |
| DE102021200857A1 (de) | 2021-11-18 |
| CN115552172A (zh) | 2022-12-30 |
| WO2021228331A1 (de) | 2021-11-18 |
| US11966069B2 (en) | 2024-04-23 |
| US20230350124A1 (en) | 2023-11-02 |
| KR102795422B1 (ko) | 2025-04-11 |
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