EP4308417A1 - A dual display device and method of controlling thereof - Google Patents

A dual display device and method of controlling thereof

Info

Publication number
EP4308417A1
EP4308417A1 EP21844991.6A EP21844991A EP4308417A1 EP 4308417 A1 EP4308417 A1 EP 4308417A1 EP 21844991 A EP21844991 A EP 21844991A EP 4308417 A1 EP4308417 A1 EP 4308417A1
Authority
EP
European Patent Office
Prior art keywords
display
transparent
dual
mode
light control
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
Application number
EP21844991.6A
Other languages
German (de)
French (fr)
Inventor
Fook Wai LEE
Arvind DUBEY
Kuan Fang Henry Lim
Pixie Ru Jun THAM
Chee Wei LEE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aumovio Germany GmbH
Original Assignee
Continental Automotive Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive Technologies GmbH filed Critical Continental Automotive Technologies GmbH
Publication of EP4308417A1 publication Critical patent/EP4308417A1/en
Pending legal-status Critical Current

Links

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
    • G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/80—Arrangements for controlling instruments
    • B60K35/81—Arrangements for controlling instruments for controlling displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/211—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays producing three-dimensional [3D] effects, e.g. stereoscopic images
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/29—Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • 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 
    • G02F1/17—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
    • G02F1/172—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on a suspension of orientable dipolar particles, e.g. suspended particles displays
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1647—Details related to the display arrangement, including those related to the mounting of the display in the housing including at least an additional display
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/128—Active-matrix OLED [AMOLED] displays comprising two independent displays, e.g. for emitting information from two major sides of the display
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H10K59/176—Passive-matrix OLED displays comprising two independent displays, e.g. for emitting information from two major sides of the display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/1526—Dual-view displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/18—Information management
    • B60K2360/195—Blocking or enabling display functions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/27—Optical features of instruments using semi-transparent optical elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/77—Instrument locations other than the dashboard
    • B60K2360/785—Instrument locations other than the dashboard on or in relation to the windshield or windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
    • B60Q1/268—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions on windscreens or windows
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2380/00—Specific applications
    • G09G2380/10—Automotive applications

Definitions

  • the present disclosure is related in general to transparent display devices,more particularly,but not exclusively to a dual display device and a method thereof.
  • transparent displays refer to a display that has transparency, and thus allows a background behind the display to be visible.
  • trans parent displays are used in various environments for various purposes and the main purpose of using transparent display is for digital signage and display purposes.
  • the displayed content is prone to influence by lighting external to the transparent display, for example environmental ambient light which will affect visibility of the content displayed and thus less visible to user.
  • conventional transparent displays are used for one way viewing.By way of an example of a one-way viewing application is a transparent OLED TV, which is operable to display content on the OLED display layer. The content displayed is only viewable by a user on one side of the OLED TV.
  • current embodiment of transparent displays does not fully utilize the benefit of transparency properties of a transparent display, which allows background behind the transparent display to be visible. Due to the transparency properties of transparent display which allows a user to see the background of the transparent display, a transparent display may be used as glass or windows. There is therefore a need to utilize transparent displays for more dynamic applications, for example outdoor applications.
  • a purpose of this disclosure is to ameliorate the problem of lack of dynamic functionality of transparent displays for use in outdoor application, by providing the subject-matter of the independent claims.
  • the present disclosure may relate to a dual display device.
  • the dual display device includes a first transparent display operable between a transparent mode for permitting light to pass through the first transparent display and a display mode for displaying a first content and a second transparent display operable between a transparent mode for permitting light to pass through the first transparent display and a display mode for displaying a second content.
  • the dual display device includes a light control layer placed in between the first transparent layer and the second transparent layer and a display controller configured to switch the light control layer (105) such that the first transparent display (101) and the second transparent display (103) operate between in the transparent mode and the display mode.
  • the aforesaid configuration achieves a dual display device.
  • the first transparent display and the second transparent display is operable to function as a transparent glass when operating in the transparentmode.
  • the aspect of this disclosure yields a dual display device which also function a transparent glasswhen configured to transparentmode, allowing a viewer to see-through the dual display device.
  • the display controller when operating in the transparent mode, the display controller the display controller is operable to switch off the light control layer and disables the first transparent display and/or the second transparent display.
  • this aspect of this disclosure prevents light rays from transmitting through the transparent display from the light control layer, such that the first display and second display functions as a transparent glass, such that a background of the display may be observed.
  • the display controller is operable to switch on the light control layer and display a blank screen image on both the first transparent display and the second transparent display.
  • this aspect of this disclosure prevents light rays from transmitting through the transparent display from a source external to the dual display, for example sunlight, such that the first display and second display functions a blank screen. More advantageously, the displaying of a blank screen may be used to protect privacy of a user.
  • display mode comprises an interior viewing mode, an exterior viewing mode, a dual viewing mode and a three-dimensional viewing mode.
  • the aforesaid aspect of this disclosure yields a dual display device which may display content on a first side of the display, a second side of display opposite to the first side, i.e. a reverse side, and/or on both the first side and the second side of the dual display device.
  • the display controller when operating in the interior viewing mode, is configured to switch off the light control layer and enables the first transparent display for displaying the first content and disables the second transparent display.
  • the aforesaid aspect of this disclosure yields a dual display device that functions as a display device for displaying content by preventing light rays from transmitting through one of the display layers, i.e. the light control layer, such that contents are only displayed on a first side of the dual display device.
  • the display controller when operating in the exterior viewing mode, is operable to switch off the light control layer and enables the second transparent display for displaying the second content and disables the first transparent display.
  • the aforesaid aspect of this disclosure yields a dual display device that functions as a display device for displaying content by preventing light rays from transmitting through one of the display layers, i.e. the light control layer. More advantageously, the content displayed on each side of the dual display device may be different.
  • the display controller when operating in the dual viewing mode, is operable to switch off the light control layer and enables both the first transparent display and the second transparent display to display the first content and the second content, respectively.
  • the aforesaid aspect of this disclosure yields a dual display device which display contents on both a first side and a second side opposite to the first, i.e. a reverse side of the display, such that contents may be viewed from both front and back side of the dual display device.
  • the display controller when operating in the three-dimensional viewing mode, is operable to switch on the light control layer and enables both the first transparent display and the second transparent display to display content which is either identical to or with a minimum predefined difference to provide a three-dimensional view.
  • the aforesaid aspect of this disclosure yields a dual display device which is operable to display the same content on both sides of the display. More advantageously, the display controller aligns pixels of the display layers such that the entire display provides a three-dimensional perspective when viewed by a viewer.
  • the light control layer is operable to adjust a level of tint on the first transparent display and the second transparent display based on lighting condition surrounding the dual display device.
  • the aforesaid aspect of this disclosure yields a dual display device operable to adjust a tint level of the display layer. More advantageously, the aforesaid aspect provides tinting when the dual display device is operating in the transparent mode.
  • the dual display device comprises adhesives integrated with Infrared Radiation (IR) and Ultraviolet (UV) Radiation Absorber.
  • IR Infrared Radiation
  • UV Ultraviolet Radiation Absorber
  • the light control layer is an SPD film.
  • using SPD technology blocks out light rays to achieve tinting effects.
  • the present disclosure may relate to a dual display device comprising a first light control layer and a second light control layer.
  • the dual display device includes a transparent display stacked between the first light control layer and the second light control layer and a display controller operable to control the first light control layer, the second light control layer, and the transparent display to operate between a transparent mode and a display mode.
  • the aforesaid aspect of this disclosure yields a multi-layer display that is operable as a dual display device.
  • the display mode comprises an interior viewing mode, an exterior viewing mode and a three-dimensional viewing mode.
  • the aforesaid aspect of this disclosure yields a dual display device which may display content on a first side of the display, a second side of display opposite to the first side, i.e. a reverse side, and/or on both the first side and the second side of the dual display device.
  • the present disclosure may relate to a method for controlling a dual display device in accordance to this disclosure.
  • Themethod includes controlling a light control layer of the dual display device such that a first transparent display and a second transparent display associated with the dual display device operate in a transparent mode and a display mode.
  • this aspect of this disclosure prevents light rays from transmitting through the transparent display and/or allows light rays to transmit through the dual display device, such that the display functions as a transparent glass or a display device accordingly.
  • Fig.la-lb illustrate exemplary block diagrams of a dual display device in accordance with some embodiments of the present disclosure
  • Fig.2a shows the dual display device is transparent mode in accordance with some embodiments of the present disclosure
  • Fig.2b-2d show dual display device in different display modes in accordance with some embodiments of the present disclosure.
  • Fig.3a-3b show flowcharts showing methods for providing a dual display device in accordance with some embodiments of present disclosure accordance.
  • any block diagrams herein represent conceptual views of illustrative systems embodying the principles of the present subject matter.
  • any flow charts, flow diagrams, state transition diagrams, pseudo code, and the like represent various processes which may be substantially rep- resented in computer readable medium and executed by a computer or processor, whether or not such computer or processor is explicitly shown.
  • a transparent display refers to a display apparatus having transparent properties, such that background of the display apparatus are observable.
  • a transparent display ap paratus allows the user to see both the image displayed from the display apparatus and the background view behind the display apparatus, i.e. the background behind the transparent display apparatus can be seen through. This is because a transparent display apparatus transmits incident light rays onto a back surface of the transparent display apparatus directly to a viewer's eye due to light transmittance.Since the light incident onto the back surface is transmitted directly to the user's eye, the user can see an object beyond the back surface, thus achieving see-through effect.
  • a liquid-crystal display uses two polarizing plates, the liquid-crystal display has low transmittance, so that it is difficult to be used as a transparent display apparatus.
  • a suitable type of display for manufacturing a transparent display will be realized by using an organic light-emitting display device (OLED) capable of self-emitting.
  • OLED organic light-emitting display device
  • Such a transparent display apparatus may function as a glass-like surface, while at the same time, provide desired information to a user.
  • first, second, third and the like used in the context of this disclosure may refer to modification of different elements in accordance to various exemplary embodiments, but not limited thereto.
  • the expressions may be used to distinguish one element from another element, regardless of sequence of im portance.
  • a first transparent layer and a second transparent layer may indicate different layers of the display apparatus, regardless of order or importance.
  • a first transparent layer may be referred to as the second transparent layer and vice versa without departing from the scope of this disclosure.
  • the term “inner”, “inside”, “outer” and “outside” are expressions used to distinguish directional difference of the display apparatus when viewed by a viewer, regardless of order or importance. In various embodiments, the above expressions are used to distinguish the different elements but not limited thereto. The term “inner”, “inside”, “outer” and “outside” may be used vice versa to aid understanding of this disclosure, without departing from the scope and spirit of this disclosure .
  • Embodiments of the present disclosure may relate to a dual display device for displaying in switchable dual context.
  • the present disclosure may relate to transparent displays which are used in various environments for various purposes.
  • the transparent displays may be used as glasspanels for windows in automotive, a glass panel for display window of a retail store, computer monitors for various devices and the like.
  • a transparent display refers to a display apparatus having transparent properties, such that background of the display apparatus are observable.
  • the transparent displays are usually used for only one way viewing, for instance displaying of content for viewing, such as a transparent OLED TV display.
  • current embodiment of transparent displays does not provide switchable dual views.
  • An example where switchable dual views may be advantageous is the use of transparent displays as transparent glass panels for windows.
  • a transparent display may be used as an automotive window.
  • the display background is expected to be dynamic with varying landscape and ambient conditions, for example external lighting from sunlight.
  • switchable dual views function with dynamic functionality for automotive applications is necessary.
  • Another example where switchable dual views may be advantageous is the use of dual views displays as digital signage for example public transport waiting area such as a public bus stop.
  • Yet another example is the use of switchable dual views displays as display windows for retail shops.
  • the present disclosure resolves this problem by providing a dual display device which includes a first transparent display and a second transparent display for displaying a first content and second content, respectively. Further, the dual display device introduces a light control layer in between the first transparent layer and the second transparent layer, which may be controlled by a display controller such that the first transparent display and the second transparent display operate the dual display device in a transparent mode and a display mode.
  • the present disclosure creates viewable transparent display which may show wither same or different content from one or both sides of displays.
  • the dual display device is capable of adjusting transparency with respect to environmental background and also create three-dimensional images on the transparent display.
  • the dual display device 100 includes a first transparent display 101 and a second transparent display 103 for displaying first content 121 and second content 123 respectively (Fig. 2a to 2d referred).
  • the first transparent display 101 may be placed towards inward and the second transparent display 103 may be placed outward.
  • the first transparent display 101 may be a display for viewing content inside the vehicle, for the driver/passenger
  • the second transparent display 103 may be a display for viewing content the vehicle outside for a viewer or a pedestrian.
  • the dual display device 100 includes a light control layer 105 which is formed in between the first transparent display 101 and the second transparent display 103.
  • the light control layer 105 is formed by switchable glazing.
  • the light control layer 105 may be Suspended Particle Devices (SPD) film.
  • SPD Suspended Particle Devices
  • the light control layer 105 may also be formed by any other technology which are either known or which may fulfil the requirements of switchable glazing.
  • the dual display device 100 includes a display controller 107 for controlling the light control layer 105 to operate the dual display device 100 in different modes.
  • the display controller 107 may be elec trically connected to a power supply (not shown in figures).
  • the display controller 107 is configured to control the light control layer 105.
  • ach transparent displays, i.e., the first transparent display 101 and the second transparent display 103 includes video interface 109 and 111, of which content is displayed on the first transparent display 101 and/or the second transparent display 103 respectively.
  • the light control layer 105 may be operable to adjust a level of tint on the first transparent display 101 and the second transparent display 103 based on lighting condition surrounding the dual display device 100. For instance, the adjustment of the level of tint may be based on interior and exterior ambient light conditions.
  • the light control layer 105 is controlled to operate the dual display device 100 in either a transparent mode or a display mode.
  • the dual display device 100 function as a transparent glass.
  • the dual display device 100 is operating in a transparent mode.
  • the display controller 107 may switch on or enable the light control layer 105 and simultaneously disables the first transparent display 101 and the second transparent display 103.
  • the first transparent display 101 and the second transparent display 103 are displayed by either switching off respective display or by transmitting blank screen images to both the first and the second transparent displays.
  • the first transparent display 101 and the second transparent display 103 may be coupled with a sheet of glass 119, 119'.
  • the display mode includes an interior viewing mode, an exterior viewing mode, a dual viewing mode and a three-dimensional viewing mode.
  • Fig.2b-2d shows the dual display device in display mode, i.e., in interior viewing mode, exterior viewing mode and the dual viewing mode, re spectively.
  • Fig.2b shows the dual display device 100 in interior viewing mode.
  • the interior viewing mode is a display mode where content is displayed only interiorly.
  • the interior viewing mode is suitable for displaying content for example to passengers inside a passenger cabin of a motor vehicle.
  • the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the first content 121 and disables the second transparent display 103, such that no content is displayed on the second transparent display 103.
  • the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the first content 121 and disables the second transparent display 103, such that no content is displayed on the second transparent display 103.
  • the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the first content 121 and disables the second transparent display 103, such that no content is displayed on the second transparent display 103.
  • the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the
  • Fig.2c shows the dual display device in exterior viewing mode.
  • the exterior viewing mode is a display mode where content is displayed only externally.
  • the display controller 107 switches off the light control layer 105 and enables the second transparent display 103 for displaying the second content 123 and disables the first transparent display 101, such that no content is displayed on the first transparent display 101.
  • This embodiment is suitable for automotive application, where a driver of a motor vehicle may enable the exterior viewingmode such that, the driver may view a blank screen on mirror of vehicle window, while the display from outside of the mirror is enabled to display content such as, a short movie or advertisement.
  • Fig.2d shows the dual display device in dual viewing mode.
  • the dual viewing mode is a display mode where content is displayed both internally and externally.
  • the display controller 107 switches off the light control layer 105 by cutting current flow from the power supply and enables both the first transparent display 101 and the second transparent display 103 to display the first content 121 and the second content 123 respectively.
  • a driver of a motor vehicle may enable the dual viewing mode such that, the driver may view a content, for example a content captured on mirror of vehicle window and a pedestrian may also view a content, such as, an advertisement from outside of the mirror of vehicle.
  • the dual display device 100 While in the three-dimensional viewing mode, the dual display device 100 is enabled to show a 3D content on the transparent displays 101, 103.
  • the display controller 107 may switch on the light control layer 105 and enable both the first transparent display 101 to display a first content 121 and the second transparent display 103 to display a second content 123.
  • the first content 121 and the second content 123 may be either identical to or with a minimum predefined difference to provide a three-dimensional view.
  • the dual display device 100 is enabled in different modes by controlling the light control layer 105.
  • this aspect of the disclosure yields a dual display device using transparent displays that achieve dynamic functionalities for outdoor applications, in particular in motor vehicles, to address the lack thereof in conventional display devices and methods.
  • Fig.lb shows another embodiment of the dual display device 100.
  • the dual display device 100 includes a first light control layer 113 and a second light control layer 115.
  • the dual display device 100 includes a transparent display 117which is stacked between the first light control layer 113 and the second light control layer 115.
  • the dual display device 100 includes the display controller 107 to control the first light control layer 113, the second light control layer 115, and the transparent display 117 in order to operate between the transparent mode and the display mode.
  • the display mode in this embodiment includes only the interior viewing mode, the exterior viewing mode, and the three-dimensional viewing mode.
  • Fig . 3a illustrate a flowchart showing a method for providing a dual display device in first embodiment, in accordance with some embodiments of present disclosure.
  • the method 300a includes one or more blocks for operating a dual display device 100.
  • the method 300a may be described in the general context of computer executable instructions, which may include routines, programs, objects, components, data structures, procedures and modules which perform particular functions or implement particular abstract data types.
  • the order in which the method 300a is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method. Additionally, individual blocks may be deleted from the methods without departing from the scope of the subject matter described herein. Furthermore, the method can be implemented in any suitable hardware, software, firmware, or combination thereof.
  • the display controller 107 controlling by the display controller 107, light control layer 105 of the dual display device 100 such that the first transparent display 101 and the second transparent display 103 operate in either the transparent mode or the display mode.
  • the display controller 107 may switch on or enable the light control layer 105 and simultaneously disables the first transparent display 101 and the second transparent display 103 such that no content is displayed on either transparent displays 101, 103. Consequently, the transparent display 101, 103 functions as a transparent glass due to its transparent properties as described above.
  • the first transparent display 101 and the second transparent display 103 are displayed by either switching off respective display or by transmitting blank screen images to both the first and the second transparent displays.
  • the displaymode includes the interior viewing mode, the exterior viewing mode, the dual viewing mode, and the three-dimensional viewing mode.
  • the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the first content and disables the second transparent display 103.
  • the display controller 107 switches off the light control layer 105 and enables the second transparent display 103 for displaying the second content and disables the first transparent display 101.
  • the dual viewing mode may be the mode where the display controller 107 switches off the light control layer 105 and enables both the first transparent display 101 and the second transparent display 103 to display the first content 121 and the second content 123 respectively. While, in the three-dimensional viewing mode, the display controller 107 may switch on the light control layer 105 and enable both the first transparent display 101 and the second transparent display 103 to display content which is either identical to or with a minimum predefined difference to provide a three-dimensional view.
  • Fig . 3b illustrate a flowchart showing a method for providing a dual display device in second embodiment, in accordance with some embodiments of present disclosure.
  • the method 300b includes one or more blocks for operating a dual display device 100.
  • the method 300b may be described in the general context of computer executable instructions.
  • computer executable instructions can include routines, programs, objects, components, data struc- tures, procedures and modules which perform particular functions or implement particular abstract data types.
  • the order in which the method 300b is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method. Additionally, individual blocks may be deleted from the methods without departing from the scope of the subject matter described herein. Furthermore, the method can be implemented in any suitable hardware, software, firmware, or combination thereof .
  • the display mode may include the interior viewing mode, the exterior viewing mode, and the three-dimensional viewing mode.
  • the above Figures 1 - 3 are explained with consideration of automotive industry application. Nonetheless, it shall be understood by a skilled practitioner, the present disclosure is not restricted to mere automotive industry.
  • the dual display device can also be implemented in other industries for example, applications such as information displays in retail sector (e.g., shops, point of sales equipment), IT (e.g., computer monitors), constructed buildings (windows) and the like.
  • An embodiment of the present disclosure provides a switchable dual view device, which operates the display to be viewed in different modes.
  • An embodiment of the present disclosure enables displaying information to different users on a different perspective of the transparent display.
  • An embodiment of the present disclosure provides dynamic display contrast.
  • An embodiment of the present disclosure improves sharpness of images with reduction in scattering effect from ambient light.
  • the disclosed method and system overcome technical problem of providing a display with dual view capability. That is, existing transparent display provides content viewing from a single viewing point.
  • the present disclosure resolves this problem by providing a dual display device which includes a first transparent display and a second transparent display for displaying a first content and second content, respectively.
  • the dual display device introduces a light control layer in between the first transparent layer and the second transparent layer, which may be controlled by a display controller such that the first transparent display and the second transparent display operate the dual display device in a transparent mode and a display mode.
  • the present disclosure creates viewable transparent display which may show wither same or different content from one or both sides of displays.
  • the dual display device is capable of adjusting transparency with respect to background and also create three-dimensional images on the transparent display.
  • the transparent displays are usually used for one way viewing, for instance displaying content on a transparent OLED TV.
  • current embodiment of transparent displays does not provide switchable dual views (i.e., from inside and/or outside).
  • Existence technology also does not adjust tint dynamically. Dynamic functionalities is required for automotive use, in particular the display background is expected to be dynamic with varying landscape and ambient conditions .
  • the claimed steps as discussed above are not routine, conventional, or well understood in the art, as the claimed steps enable the following solutions to the existing problems in conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the system itself as the claimed steps provide a technical solution to a technical problem.
  • the described operations may be implemented as a method, system or article of manufacture using standard programming and/or engineering techniques to produce software, firmware, hardware, or any combination thereof.
  • the described operations may be implemented as code maintained in a "non-transitory computer readable medium", where a processor may read and execute the code from the computer readable medium.
  • the processor is at least one of a microprocessor, and a processor capable of processing and executing the queries.
  • Anon-transitory computer readable medium may includemedia such asmagnetic storagemedium (e.g.,harddisk drives, floppy disks, tape, etc.), optical storage (CD-ROMs, DVDs, optical disks, etc.), volatile and non-volatile memory devices (e.g., EEPROMs, ROMs, PROMs, RAMs, DRAMs, SRAM s, Flash Memory, firmware, programmable logic, etc.), etc.
  • non-transitory computer-readable media include all comput er-readable media except for a transitory.
  • the code implementing the described operations may further be implemented in hardware logic (e.g., an integrated circuit chip, Programmable Gate Array (PGA), Application Specific Integrated Circuit (ASIC), etc.).
  • the code implementing the described operations may be implemented in "transmission signals", where transmission signals may propagate through space or through a transmission media, such as, an optical fiber, copper wire, etc.
  • the transmission signals in which the code or logic is encoded may further include a wireless signal, satellite transmission, radio waves, infrared signals, Bluetooth, etc.
  • the transmission signals in which the code or logic is encoded is capable of being transmitted by a transmitting station and received by a receiving station, where the code or logic encoded in the transmission signal may be decoded and stored in hardware or a non-transitory computer readable medium at the receiving and transmitting stations or devices.
  • An “article of manufacture” includes non-transitory computer readable medium, hardware logic, and/or transmission signals in which code may be implemented.
  • a device in which the code implementing the described embodiments of operations is encoded may include a computer readable medium or hardware logic.
  • a computer readable medium or hardware logic may include any suitable information bearing medium known in the art.
  • Fig .3a-3b show certain events occurring in a certain order. In alternative embodiments, certain operations may be performed in a different order, modified, or removed. Moreover, steps may be added to the above-described logic and still conform to the described em bodiments. Further, operations described herein may occur sequentially or certain operations may be processed in par- allel. Yet further, operations may be performed by a single processing unit or by distributed processing units.

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Abstract

A dual display device and method thereof is disclosed. The dual display device includes a first transparent display and a second transparent display for displaying a first content and second content, respectively. Further, the dual display device introduces a light control layer in between the first transparent layer and the second transparent layer, which may be controlled by a display controller such that the first transparent display and the second transparent display operate the dual display device in a transparent mode and a display mode. In another embodiment, the dual display device may include a first light control layer and a second light control layer, and a transparent display stacked between the first light control layer and the second light control layer. Further, the dual display device includes the display controller to control the first light control layer, the second light control layer, and transparent display to operate between the transparent mode and the display mode.

Description

A DUAL DISPLAY DEVICE AND METHOD OF CONTROLLING THEREOF
TECHNICAL FIELD
The present disclosure is related in general to transparent display devices,more particularly,but not exclusively to a dual display device and a method thereof.
BACKGROUND
With an increase in development of electronic technology,various kinds of display devices, specifically transparent displays have gained enormous attention. Typically, transparent displays refer to a display that has transparency, and thus allows a background behind the display to be visible. Today, trans parent displays are used in various environments for various purposes and the main purpose of using transparent display is for digital signage and display purposes. When use is outdoor applications, the displayed content is prone to influence by lighting external to the transparent display, for example environmental ambient light which will affect visibility of the content displayed and thus less visible to user.
In addition, conventional transparent displays are used for one way viewing.By way of an example of a one-way viewing application is a transparent OLED TV, which is operable to display content on the OLED display layer.The content displayed is only viewable by a user on one side of the OLED TV. Hence, current embodiment of transparent displays does not fully utilize the benefit of transparency properties of a transparent display, which allows background behind the transparent display to be visible. Due to the transparency properties of transparent display which allows a user to see the background of the transparent display, a transparent display may be used as glass or windows. There is therefore a need to utilize transparent displays for more dynamic applications, for example outdoor applications.
The information disclosed in this background of the disclosure section is only for enhancement of understanding of the general background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMARY
A purpose of this disclosure is to ameliorate the problem of lack of dynamic functionality of transparent displays for use in outdoor application, by providing the subject-matter of the independent claims.
In an embodiment, the present disclosure may relate to a dual display device. The dual display device includes a first transparent display operable between a transparent mode for permitting light to pass through the first transparent display and a display mode for displaying a first content and a second transparent display operable between a transparent mode for permitting light to pass through the first transparent display and a display mode for displaying a second content. Further, the dual display device includes a light control layer placed in between the first transparent layer and the second transparent layer and a display controller configured to switch the light control layer (105) such that the first transparent display (101) and the second transparent display (103) operate between in the transparent mode and the display mode. Advantageously, the aforesaid configuration achieves a dual display device.
In an embodiment, the first transparent display and the second transparent display is operable to function as a transparent glass when operating in the transparentmode.Advantageously, the aspect of this disclosure yields a dual display device which also function a transparent glasswhen configured to transparentmode, allowing a viewer to see-through the dual display device.
In an embodiment, when operating in the transparent mode, the display controller the display controller is operable to switch off the light control layer and disables the first transparent display and/or the second transparent display. Advantageously, this aspect of this disclosure prevents light rays from transmitting through the transparent display from the light control layer, such that the first display and second display functions as a transparent glass, such that a background of the display may be observed.
In an embodiment, the display controller is operable to switch on the light control layer and display a blank screen image on both the first transparent display and the second transparent display. Advantageously, this aspect of this disclosure prevents light rays from transmitting through the transparent display from a source external to the dual display, for example sunlight, such that the first display and second display functions a blank screen. More advantageously, the displaying of a blank screen may be used to protect privacy of a user.
In an embodiment, display mode comprises an interior viewing mode, an exterior viewing mode, a dual viewing mode and a three-dimensional viewing mode. Advantageously, the aforesaid aspect of this disclosure yields a dual display device which may display content on a first side of the display, a second side of display opposite to the first side, i.e. a reverse side, and/or on both the first side and the second side of the dual display device.
In an embodiment, when operating in the interior viewing mode, the display controller is configured to switch off the light control layer and enables the first transparent display for displaying the first content and disables the second transparent display. Advantageously, the aforesaid aspect of this disclosure yields a dual display device that functions as a display device for displaying content by preventing light rays from transmitting through one of the display layers, i.e. the light control layer, such that contents are only displayed on a first side of the dual display device.
In an embodiment, when operating in the exterior viewing mode, the display controller is operable to switch off the light control layer and enables the second transparent display for displaying the second content and disables the first transparent display. Advantageously, the aforesaid aspect of this disclosure yields a dual display device that functions as a display device for displaying content by preventing light rays from transmitting through one of the display layers, i.e. the light control layer. More advantageously, the content displayed on each side of the dual display device may be different.
In an embodiment, when operating in the dual viewing mode, the display controller is operable to switch off the light control layer and enables both the first transparent display and the second transparent display to display the first content and the second content, respectively. Advantageously, the aforesaid aspect of this disclosure yields a dual display device which display contents on both a first side and a second side opposite to the first, i.e. a reverse side of the display, such that contents may be viewed from both front and back side of the dual display device.
In an embodiment,when operating in the three-dimensional viewing mode, the display controller is operable to switch on the light control layer and enables both the first transparent display and the second transparent display to display content which is either identical to or with a minimum predefined difference to provide a three-dimensional view. Advantageously, the aforesaid aspect of this disclosure yields a dual display device which is operable to display the same content on both sides of the display. More advantageously, the display controller aligns pixels of the display layers such that the entire display provides a three-dimensional perspective when viewed by a viewer.
In an embodiment, the light control layer is operable to adjust a level of tint on the first transparent display and the second transparent display based on lighting condition surrounding the dual display device.Advantageously, the aforesaid aspect of this disclosure yields a dual display device operable to adjust a tint level of the display layer. More advantageously, the aforesaid aspect provides tinting when the dual display device is operating in the transparent mode.
In an embodiment, the dual display device comprises adhesives integrated with Infrared Radiation (IR) and Ultraviolet (UV) Radiation Absorber. Advantageously, this aspect of the dis closure yields a dual display device that is operable to filter IR or UV wavelength to reduce scattering effects.
In an embodiment, the light control layer is an SPD film. Advantageously, using SPD technology blocks out light rays to achieve tinting effects. In an embodiment, the present disclosure may relate to a dual display device comprising a first light control layer and a second light control layer. Further, the dual display device includes a transparent display stacked between the first light control layer and the second light control layer and a display controller operable to control the first light control layer, the second light control layer, and the transparent display to operate between a transparent mode and a display mode. Advantageously, the aforesaid aspect of this disclosure yields a multi-layer display that is operable as a dual display device.
In an embodiment, the display mode comprises an interior viewing mode, an exterior viewing mode and a three-dimensional viewing mode. Advantageously, the aforesaid aspect of this disclosure yields a dual display device which may display content on a first side of the display, a second side of display opposite to the first side, i.e. a reverse side, and/or on both the first side and the second side of the dual display device.
In an embodiment, the present disclosure may relate to a method for controlling a dual display device in accordance to this disclosure. Themethod includes controlling a light control layer of the dual display device such that a first transparent display and a second transparent display associated with the dual display device operate in a transparent mode and a display mode. Ad vantageously, this aspect of this disclosure prevents light rays from transmitting through the transparent display and/or allows light rays to transmit through the dual display device, such that the display functions as a transparent glass or a display device accordingly.
The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.
BRIEF DESCRIPTION OF DRAWINGS
The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed principles. In the figures, the left-most digit (s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some em bodiments of system and/or methods in accordance with embodiments of the present subject matter are now described,by way of example only, and with reference to the accompanying figures, in which:
Fig.la-lb illustrate exemplary block diagrams of a dual display device in accordance with some embodiments of the present disclosure;
Fig.2a shows the dual display device is transparent mode in accordance with some embodiments of the present disclosure;
Fig.2b-2d show dual display device in different display modes in accordance with some embodiments of the present disclosure; and
Fig.3a-3b show flowcharts showing methods for providing a dual display device in accordance with some embodiments of present disclosure accordance.
It should be appreciated by those skilled in the art that any block diagrams herein represent conceptual views of illustrative systems embodying the principles of the present subject matter. Similarly, it will be appreciated that any flow charts, flow diagrams, state transition diagrams, pseudo code, and the like represent various processes which may be substantially rep- resented in computer readable medium and executed by a computer or processor, whether or not such computer or processor is explicitly shown.
DETAILED DESCRIPTION
In the present document, the word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any embodiment or embodiment of the present subject matter described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
While the disclosure is susceptible to various modifications and alternative forms, specific embodiment thereof has been shown by way of example in the drawings and will be described in detail below. It should be understood, however that it is not intended to limit the disclosure to the particular forms disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternative falling within the spirit and the scope of the disclosure.
The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a setup, device, or method that comprises a list of components or steps does not include only those components or steps but may include other components or steps not expressly listed or inherent to such setup or device or method. In other words, one or more elements in a system or apparatus proceeded by "comprises...a" does not, without more constraints, preclude the existence of other elements or additional elements in the system or method.
The term ""a transparent display" refers to a display apparatus having transparent properties, such that background of the display apparatus are observable. A transparent display ap paratus allows the user to see both the image displayed from the display apparatus and the background view behind the display apparatus, i.e. the background behind the transparent display apparatus can be seen through. This is because a transparent display apparatus transmits incident light rays onto a back surface of the transparent display apparatus directly to a viewer's eye due to light transmittance.Since the light incident onto the back surface is transmitted directly to the user's eye, the user can see an object beyond the back surface, thus achieving see-through effect. Since a liquid-crystal display (LCD) uses two polarizing plates, the liquid-crystal display has low transmittance, so that it is difficult to be used as a transparent display apparatus.A suitable type of display for manufacturing a transparent display will be realized by using an organic light-emitting display device (OLED) capable of self-emitting. Such a transparent display apparatus may function as a glass-like surface, while at the same time, provide desired information to a user.
The term "first", "second", "third" and the like used in the context of this disclosure may refer to modification of different elements in accordance to various exemplary embodiments, but not limited thereto. The expressions may be used to distinguish one element from another element, regardless of sequence of im portance. By way of an example, "a first transparent layer" and "a second transparent layer" may indicate different layers of the display apparatus, regardless of order or importance.Similarly, a first transparent layer may be referred to as the second transparent layer and vice versa without departing from the scope of this disclosure.
On a similar note, the term "inner", "inside", "outer" and "outside" are expressions used to distinguish directional difference of the display apparatus when viewed by a viewer, regardless of order or importance. In various embodiments, the above expressions are used to distinguish the different elements but not limited thereto. The term "inner", "inside", "outer" and "outside" may be used vice versa to aid understanding of this disclosure, without departing from the scope and spirit of this disclosure .
In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient details to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure.The following description is, therefore, not to be taken in a limiting sense.
Embodiments of the present disclosuremay relate to a dual display device for displaying in switchable dual context. Particularly, the present disclosure may relate to transparent displays which are used in various environments for various purposes. For example, the transparent displaysmay be used as glasspanels for windows in automotive, a glass panel for display window of a retail store, computer monitors for various devices and the like. As explained above, a transparent display refers to a display apparatus having transparent properties, such that background of the display apparatus are observable.
In existing scenario, the transparent displays are usually used for only one way viewing, for instance displaying of content for viewing, such as a transparent OLED TV display. Hence, current embodiment of transparent displays does not provide switchable dual views. An example where switchable dual views may be advantageous is the use of transparent displays as transparent glass panels for windows. By way of an example, a transparent display may be used as an automotive window. For automotive use, the display background is expected to be dynamic with varying landscape and ambient conditions, for example external lighting from sunlight. As such, having switchable dual views function with dynamic functionality for automotive applications is necessary. Another example where switchable dual views may be advantageous is the use of dual views displays as digital signage for example public transport waiting area such as a public bus stop. Yet another example is the use of switchable dual views displays as display windows for retail shops.
Accordingly, the present disclosure resolves this problem by providing a dual display device which includes a first transparent display and a second transparent display for displaying a first content and second content, respectively. Further, the dual display device introduces a light control layer in between the first transparent layer and the second transparent layer, which may be controlled by a display controller such that the first transparent display and the second transparent display operate the dual display device in a transparent mode and a display mode. Thus, the present disclosure creates viewable transparent display which may show wither same or different content from one or both sides of displays. The dual display device is capable of adjusting transparency with respect to environmental background and also create three-dimensional images on the transparent display.
As shown in Fig.la and Fig. lb, an exemplary diagram of a dual display device 100 is illustrated. The dual display device 100 includes a first transparent display 101 and a second transparent display 103 for displaying first content 121 and second content 123 respectively (Fig. 2a to 2d referred). In an embodiment, the first transparent display 101 may be placed towards inward and the second transparent display 103 may be placed outward. By way of an example, considering in automotive scenario for mirror of a vehicle, the first transparent display 101 may be a display for viewing content inside the vehicle, for the driver/passenger, and the second transparent display 103 may be a display for viewing content the vehicle outside for a viewer or a pedestrian.Further, the dual display device 100 includes a light control layer 105 which is formed in between the first transparent display 101 and the second transparent display 103. The light control layer 105 is formed by switchable glazing. In an exemplary embodiment, the light control layer 105 may be Suspended Particle Devices (SPD) film. However, the light control layer 105 may also be formed by any other technology which are either known or which may fulfil the requirements of switchable glazing.Further, the dual display device 100 includes a display controller 107 for controlling the light control layer 105 to operate the dual display device 100 in different modes. The display controller 107 may be elec trically connected to a power supply (not shown in figures). The display controller 107 is configured to control the light control layer 105.Each transparent displays, i.e., the first transparent display 101 and the second transparent display 103 includes video interface 109 and 111, of which content is displayed on the first transparent display 101 and/or the second transparent display 103 respectively. Further, the light control layer 105 may be operable to adjust a level of tint on the first transparent display 101 and the second transparent display 103 based on lighting condition surrounding the dual display device 100. For instance, the adjustment of the level of tint may be based on interior and exterior ambient light conditions.
The light control layer 105 is controlled to operate the dual display device 100 in either a transparent mode or a display mode. In the transparent mode, the dual display device 100 function as a transparent glass.In an exemplary embodiment as shown in Fig.2a, the dual display device 100 is operating in a transparent mode. As shown, in order to change the dual display device 100 to transparent mode, the display controller 107 may switch on or enable the light control layer 105 and simultaneously disables the first transparent display 101 and the second transparent display 103. The first transparent display 101 and the second transparent display 103 are displayed by either switching off respective display or by transmitting blank screen images to both the first and the second transparent displays. In an exemplary embodiment, the first transparent display 101 and the second transparent display 103 may be coupled with a sheet of glass 119, 119'. An example of a suitable type of glassmay be tempered glass. Due to the strengthen characteristics of tempered glass, the aforesaid embodiment is suitable for use as windows for motor vehicles or building structures, as well as outdoor digital signage. Returning to Fig.la, the display mode includes an interior viewing mode, an exterior viewing mode, a dual viewing mode and a three-dimensional viewing mode. Fig.2b-2d shows the dual display device in display mode, i.e., in interior viewing mode, exterior viewing mode and the dual viewing mode, re spectively.
Fig.2b shows the dual display device 100 in interior viewing mode. In a preferred embodiment, the interior viewing mode is a display mode where content is displayed only interiorly. In a preferred embodiment, the interior viewing mode is suitable for displaying content for example to passengers inside a passenger cabin of a motor vehicle.As shown in Fig.2b, in the interior viewing mode, the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the first content 121 and disables the second transparent display 103, such that no content is displayed on the second transparent display 103. For instance, consider the automotive scenario, where a driver of a vehicle may enable an interior viewing mode such that, the driver may view a content such a scenario or any display on mirror of vehicle window, while the display from outside of the mirror is enabled to be a blank screen.
Likewise, Fig.2c shows the dual display device in exterior viewing mode. The exterior viewing mode is a display mode where content is displayed only externally.As shown in Fig.2c, in the exterior viewing mode, the display controller 107 switches off the light control layer 105 and enables the second transparent display 103 for displaying the second content 123 and disables the first transparent display 101, such that no content is displayed on the first transparent display 101. This embodiment is suitable for automotive application, where a driver of a motor vehicle may enable the exterior viewingmode such that, the driver may view a blank screen on mirror of vehicle window, while the display from outside of the mirror is enabled to display content such as, a short movie or advertisement.
Fig.2d shows the dual display device in dual viewing mode. The dual viewing mode is a display mode where content is displayed both internally and externally. As shown in Fig.2d, in the dual viewing mode, the display controller 107 switches off the light control layer 105 by cutting current flow from the power supply and enables both the first transparent display 101 and the second transparent display 103 to display the first content 121 and the second content 123 respectively. In an exemplary embodiment such as a motor vehicle application, a driver of a motor vehicle may enable the dual viewing mode such that, the driver may view a content, for example a content captured on mirror of vehicle window and a pedestrian may also view a content, such as, an advertisement from outside of the mirror of vehicle.
While in the three-dimensional viewing mode, the dual display device 100 is enabled to show a 3D content on the transparent displays 101, 103. In the three-dimensional viewing mode, the display controller 107 may switch on the light control layer 105 and enable both the first transparent display 101 to display a first content 121 and the second transparent display 103 to display a second content 123.The first content 121 and the second content 123 may be either identical to or with a minimum predefined difference to provide a three-dimensional view.
As can be seen from the above described exemplary embodiments, the dual display device 100 is enabled in different modes by controlling the light control layer 105. Advantageously, this aspect of the disclosure yields a dual display device using transparent displays that achieve dynamic functionalities for outdoor applications, in particular in motor vehicles, to address the lack thereof in conventional display devices and methods.
Further, Fig.lb shows another embodiment of the dual display device 100. In this embodiment, the dual display device 100 includes a first light control layer 113 and a second light control layer 115. Further, the dual display device 100 includes a transparent display 117which is stacked between the first light control layer 113 and the second light control layer 115.The dual display device 100 includes the display controller 107 to control the first light control layer 113, the second light control layer 115, and the transparent display 117 in order to operate between the transparent mode and the display mode.However, unlike first embodiment as disclosed in Fig.la, the display mode in this embodiment includes only the interior viewing mode, the exterior viewing mode, and the three-dimensional viewing mode.
Although usability of the dual display device 100 in this embodiment is reduced, there is increase in number of control layer usage.In addition, cost for bill ofmaterial is drastically reduced in this embodiment. Fig . 3a illustrate a flowchart showing a method for providing a dual display device in first embodiment, in accordance with some embodiments of present disclosure.
As illustrated in Fig.3a, the method 300a includes one or more blocks for operating a dual display device 100. The method 300a may be described in the general context of computer executable instructions, which may include routines, programs, objects, components, data structures, procedures and modules which perform particular functions or implement particular abstract data types.
The order in which the method 300a is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method. Additionally, individual blocks may be deleted from the methods without departing from the scope of the subject matter described herein. Furthermore, the method can be implemented in any suitable hardware, software, firmware, or combination thereof.
At block 301, controlling by the display controller 107, light control layer 105 of the dual display device 100 such that the first transparent display 101 and the second transparent display 103 operate in either the transparent mode or the display mode. In the transparent mode, the display controller 107 may switch on or enable the light control layer 105 and simultaneously disables the first transparent display 101 and the second transparent display 103 such that no content is displayed on either transparent displays 101, 103. Consequently, the transparent display 101, 103 functions as a transparent glass due to its transparent properties as described above. The first transparent display 101 and the second transparent display 103 are displayed by either switching off respective display or by transmitting blank screen images to both the first and the second transparent displays.In an embodiment, the displaymode includes the interior viewing mode, the exterior viewing mode, the dual viewing mode, and the three-dimensional viewing mode. In the interior viewing mode, the display controller 107 switches off the light control layer 105 and enables the first transparent display 101 for displaying the first content and disables the second transparent display 103.Likewise, in the exterior viewing mode, the display controller 107 switches off the light control layer 105 and enables the second transparent display 103 for displaying the second content and disables the first transparent display 101.
The dual viewing mode may be the mode where the display controller 107 switches off the light control layer 105 and enables both the first transparent display 101 and the second transparent display 103 to display the first content 121 and the second content 123 respectively. While, in the three-dimensional viewing mode, the display controller 107 may switch on the light control layer 105 and enable both the first transparent display 101 and the second transparent display 103 to display content which is either identical to or with a minimum predefined difference to provide a three-dimensional view.
Fig . 3b illustrate a flowchart showing a method for providing a dual display device in second embodiment, in accordance with some embodiments of present disclosure.
As illustrated in Fig.3b, the method 300b includes one or more blocks for operating a dual display device 100. The method 300b may be described in the general context of computer executable instructions. Generally, computer executable instructions can include routines, programs, objects, components, data struc- tures, procedures and modules which perform particular functions or implement particular abstract data types.
The order in which the method 300b is described is not intended to be construed as a limitation, and any number of the described method blocks can be combined in any order to implement the method. Additionally, individual blocks may be deleted from the methods without departing from the scope of the subject matter described herein. Furthermore, the method can be implemented in any suitable hardware, software, firmware, or combination thereof .
At block 303, controlling by the display controller 107, the first light control layer 113, the second light control layer 115 and the transparent display 117 such that the dual display device operates in either the transparent mode or the display mode. In an embodiment, the display mode may include the interior viewing mode, the exterior viewing mode, and the three-dimensional viewing mode.
The above Figures 1 - 3 are explained with consideration of automotive industry application. Nonetheless, it shall be understood by a skilled practitioner, the present disclosure is not restricted to mere automotive industry. The dual display device can also be implemented in other industries for example, applications such as information displays in retail sector (e.g., shops, point of sales equipment), IT (e.g., computer monitors), constructed buildings (windows) and the like.
Advantages of the present disclosure:
An embodiment of the present disclosure provides a switchable dual view device, which operates the display to be viewed in different modes. An embodiment of the present disclosure enables displaying information to different users on a different perspective of the transparent display.
An embodiment of the present disclosure provides dynamic display contrast.
An embodiment of the present disclosure improves sharpness of images with reduction in scattering effect from ambient light.
The disclosed method and system overcome technical problem of providing a display with dual view capability. That is, existing transparent display provides content viewing from a single viewing point. The present disclosure resolves this problem by providing a dual display device which includes a first transparent display and a second transparent display for displaying a first content and second content, respectively. Further, the dual display device introduces a light control layer in between the first transparent layer and the second transparent layer, which may be controlled by a display controller such that the first transparent display and the second transparent display operate the dual display device in a transparent mode and a display mode. Thus, the present disclosure creates viewable transparent display which may show wither same or different content from one or both sides of displays. The dual display device is capable of adjusting transparency with respect to background and also create three-dimensional images on the transparent display.
In existing known apparatus and methods, the transparent displays are usually used for one way viewing, for instance displaying content on a transparent OLED TV. Hence, current embodiment of transparent displays does not provide switchable dual views (i.e., from inside and/or outside). Existence technology also does not adjust tint dynamically. Dynamic functionalities is required for automotive use, in particular the display background is expected to be dynamic with varying landscape and ambient conditions .
In light of the above-mentioned advantages and the technical advancements provided by the disclosed method and system, the claimed steps as discussed above are not routine, conventional, or well understood in the art, as the claimed steps enable the following solutions to the existing problems in conventional technologies. Further, the claimed steps clearly bring an improvement in the functioning of the system itself as the claimed steps provide a technical solution to a technical problem.
The described operations may be implemented as a method, system or article of manufacture using standard programming and/or engineering techniques to produce software, firmware, hardware, or any combination thereof. The described operations may be implemented as code maintained in a "non-transitory computer readable medium", where a processor may read and execute the code from the computer readable medium. The processor is at least one of a microprocessor, and a processor capable of processing and executing the queries.Anon-transitory computer readable medium may includemedia such asmagnetic storagemedium (e.g.,harddisk drives, floppy disks, tape, etc.), optical storage (CD-ROMs, DVDs, optical disks, etc.), volatile and non-volatile memory devices (e.g., EEPROMs, ROMs, PROMs, RAMs, DRAMs, SRAM s, Flash Memory, firmware, programmable logic, etc.), etc. Further, non-transitory computer-readable media include all comput er-readable media except for a transitory. The code implementing the described operations may further be implemented in hardware logic (e.g., an integrated circuit chip, Programmable Gate Array (PGA), Application Specific Integrated Circuit (ASIC), etc.).
Still further, the code implementing the described operationsmay be implemented in "transmission signals", where transmission signals may propagate through space or through a transmission media, such as, an optical fiber, copper wire, etc. The transmission signals in which the code or logic is encoded may further include a wireless signal, satellite transmission, radio waves, infrared signals, Bluetooth, etc. The transmission signals in which the code or logic is encoded is capable of being transmitted by a transmitting station and received by a receiving station, where the code or logic encoded in the transmission signal may be decoded and stored in hardware or a non-transitory computer readable medium at the receiving and transmitting stations or devices. An "article of manufacture" includes non-transitory computer readable medium, hardware logic, and/or transmission signals in which code may be implemented. A device in which the code implementing the described embodiments of operations is encoded may include a computer readable medium or hardware logic.Of course, those skilled in the art will recognize that many modificationsmay be made to this configuration without departing from the scope of the disclosure, and that the article of manufacture may include suitable information bearing medium known in the art.
The terms "an embodiment", "embodiment", "embodiments", "the embodiment", "the embodiments", "one or more embodiments", "some embodiments", and "one embodiment"mean "one ormore (but not all) embodiments of the disclosure(s) " unless expressly specified otherwise. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless expressly specified otherwise.
The enumerated listing of items does not imply that any or all of the items are mutually exclusive, unless expressly specified otherwise.
The terms "a", "an" and "the"mean "one or more",unless expressly specified otherwise.
A description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the disclosure.
When a single device or article is described herein, it will be readily apparent that more than one device/article (whether or not they cooperate) may be used in place of a single de vice/article. Similarly, where more than one device or article is described herein (whether or not they cooperate), it will be readily apparent that a single device/articlemay be used in place of the more than one device or article or a different number of devices/articles may be used instead of the shown number of devices or programs. The functionality and/or the features of a device may be alternatively embodied by one or more other devices which are not explicitly described as having such function ality/features. Thus, other embodiments of the disclosure need not include the device itself.
The illustrated operations of Fig .3a-3b show certain events occurring in a certain order. In alternative embodiments, certain operations may be performed in a different order, modified, or removed. Moreover, steps may be added to the above-described logic and still conform to the described em bodiments. Further, operations described herein may occur sequentially or certain operations may be processed in par- allel. Yet further, operations may be performed by a single processing unit or by distributed processing units.
Finally, the language used in the specification has been principally selected for readability and instructionalpurposes, and it may not have been selected to delineate or circumscribe the inventive subject matter. It is therefore intended that the scope of the disclosure be limited not by this detailed de scription, but rather by any claims that issue on an application based here on.Accordingly, the disclosure of the embodiments of the disclosure is intended to be illustrative, but not limiting, of the scope of the disclosure,which is set forth in the following claims.
While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
Referral numerals:

Claims

PATENT CLAIMS
1. A dual display device (100) comprising: a first transparent display (101) operable between
• a transparent mode for permitting light to pass through the first transparent display (101), and
• a display mode for displaying a first content (121); a second transparent display (103) operable between
• a transparent mode for permitting light to pass through the second display layer (103), and
• a display mode for displaying a second content (123); a light control layer (105) placed in between the first transparent display (101) and the second transparent display (103); and a display controller (107) configured to switch the light control layer (105) such that the first transparent display (101) and the second transparent display (103) operate between in the transparent mode and the display mode.
2. The dual display device (100) according to claim 1, wherein the first transparent display (101) and the second transparent display (103) is operable to function as a transparent glass when operating in the transparent mode.
3. The dual display device (100) according to claim 1, wherein when operating in the transparent mode, the display controller (107) is operable to switch off the light control layer (105) and disables the first transparent display (101) and/or the second transparent display (103).
4. The dual display device (100) according to claim 1, wherein the display controller (107) is operable to switch on the light control layer (105) and display a blank screen image on both the first transparent display (101) and the second transparent display (103).
5. The dual display device (100) according to claim 1, wherein the display mode comprises an interior viewing mode, an exterior viewing mode, a dual viewing mode and a three-dimensional viewing mode.
6. The dual display device (100) according to claim 5, wherein when operating in the interior viewing mode, the display controller (107) is configured to switch off the light control layer (105) and enable the first transparent display (101) to display the first content (121) and disables the second transparent display (103).
7. The dual display device (100) according to claim 5, wherein when operating in the exterior viewing mode, the display controller (107) is operable to switch off the light control layer (105) and enable the second transparent display (103) for displaying the second content (123) and disable the first transparent display (101).
8. The dual display device (100) according to claim 5, wherein when operating in the dual viewing mode, the display controller (107) is operable to switch off the light control layer (105) and enable both the first transparent display (101) and the second transparent display (103) to display the first content (121) and the second content (123) respectively.
9. The dual display device (100) according to claim 5, wherein when operating in the three-dimensional viewingmode, the display controller (107) is operable to switch on the light control layer (105) and enable both the first transparent display (101) and the second transparent display (103) to display content which is either identical to or with a minimum predefined difference to provide a three-dimensional view.
10. The dual display device (100) according to claim 1, wherein the light control layer (105) is operable to adjust a level of tint of the first transparent display (101) and the second transparent display (103) based on lighting condition sur rounding the first transparent display (101) and the second transparent display (103).
11. The dual display device (100) according to claim 1, further an adhesive integrated with Infrared Radiation (IR) and Ul traviolet (UV) Radiation Absorber.
12. The dual display device (100) according to claim 1, wherein the light control layer (105) is an SPD film.
13. A dual display device (100), comprising: a first light control layer (113) and a second light control layer (115); a transparent display (117) placed between the first light control layer (113) and the second light control layer (115); and a display controller (107) is operable to control the first light control layer (113), the second light control layer (115), and the transparent display (117) to operate between a transparent mode and a display mode.
14. The dual display device (100) according to claim 13,wherein the display mode comprises an interior viewing mode, an exterior viewing mode and a three-dimensional viewing mode.
15. A method (300a,300b) of controlling a dual display device (100) according to any one of claims 1 to 14, the method comprising: controlling (301, 303) a light control layer of the dual display device such that a first transparent display and a second transparent display associated with the dual display device operate in a transparent mode and a display mode.
EP21844991.6A 2021-03-18 2021-12-22 A dual display device and method of controlling thereof Pending EP4308417A1 (en)

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US8102586B2 (en) * 2007-07-23 2012-01-24 Kuwait University Electronic window shading system for houses, transport vehicles and the like
CN101937143A (en) * 2010-07-13 2011-01-05 海尔集团公司 Double-sided touch liquid crystal display (LCD) device
US20140204039A1 (en) * 2013-01-22 2014-07-24 Adobe Systems Incorporated Compositing display
WO2016207690A1 (en) * 2015-06-22 2016-12-29 Continental Automotive Gmbh Transparent display with a controllable masking display
DE102016116569A1 (en) * 2016-09-05 2018-03-08 Annax Anzeigesysteme Gmbh Display device with dynamic adaptation
DE102017215771A1 (en) * 2017-09-07 2019-03-07 Continental Automotive Gmbh Vehicle with display unit
EP3722135B1 (en) * 2019-04-08 2022-03-02 Audi AG Display device comprising a display unit that is switchable between a transparent state and an opaque state, and motor vehicle

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