Dual-sided display, display device, car and interactive method

Abstract

The application discloses a double-sided display, a display device, an automobile and an interaction method, and is used for realizing a double-sided display with a transparent function. The double-sided display comprises a first transparent display panel and a second transparent display panel which are oppositely arranged, and a dimming layer located between the first transparent display panel and the second transparent display panel; the dimming layer is used for presenting a light-transmitting state or a light-blocking state according to a loaded voltage. Alternatively, the double-sided display comprises a first liquid crystal display panel and a second liquid crystal display panel which are oppositely arranged, and a transparent light-emitting diode display panel located between the first liquid crystal display panel and the second liquid crystal display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a double-sided display, display device, automobile, and interaction method. Background Technology

[0002] With the development of technology, display devices are playing an increasingly important role in current electronic devices. Current display devices typically have a light-emitting surface and a back surface opposite to it. The light-emitting surface can display images, text, and other information, while the back surface cannot display anything; that is, the display device can only display from one side. With the advancement of display technology, more and more applications require display devices with a wider range of display functions. Summary of the Invention

[0003] This application provides a double-sided display, a display device, an automobile, and an interaction method for providing a double-sided display with transparent display functionality.

[0004] In a first aspect, this application provides a double-sided display, comprising: a first transparent display panel and a second transparent display panel disposed opposite to each other, and a dimming layer located between the first transparent display panel and the second transparent display panel; the dimming layer is configured to be in a light-transmitting state or a light-blocking state depending on the applied voltage. Therefore, when the dimming layer is in a light-blocking state, it not only enables the double-sided display to function as a light shield, but also prevents the first transparent display panel and the second transparent display panel from interfering with each other when displaying simultaneously. When the dimming layer is in a light-transmitting state, light can pass through the light-transmitting areas of the first transparent display panel and the second transparent display panel, thereby achieving a transparent function.

[0005] For example, the display modes of the dual-sided display provided in this application embodiment may include a non-transparent display mode and a transparent display mode. When the dual-sided display is in the non-transparent display mode, the dimming layer is in a light-blocking state according to the applied voltage, and the first transparent display panel and the second transparent display panel can display according to their respective applied display information; when the dual-sided display is in the transparent display mode, the dimming layer is in a light-transmitting state according to the applied voltage, and the first transparent display panel and the second transparent display panel display according to their respective applied display information.

[0006] In this application, the light-transmitting areas of the first transparent display panel and the second transparent display panel need to overlap for the double-sided display to transmit light. Therefore, with the areas of the light-transmitting areas of the first transparent display panel and the second transparent display panel fixed, the larger the area of ​​the overlapping area between the light-transmitting areas of the first transparent display panel and the second transparent display panel, the larger the light-transmitting area of ​​the double-sided display.

[0007] Optionally, in this application, the light-transmitting area of ​​the first transparent display panel may cover the light-transmitting area of ​​the second transparent display panel, or the light-transmitting area of ​​the second transparent display panel may cover the light-transmitting area of ​​the first transparent display panel.

[0008] Furthermore, when the light-transmitting area of ​​the first transparent display panel completely overlaps with the light-transmitting area of ​​the second transparent display panel, it can be ensured that the light-transmitting area of ​​the double-sided display is maximized while the display areas on both sides are the same.

[0009] For example, the dimming layer can be formed using any structure, such as an electrochromic material or a liquid crystal display panel, that can achieve a light-transmitting or light-blocking state depending on the applied voltage; no limitation is made here.

[0010] In a specific implementation, the liquid crystal display panel mainly includes: a first transparent substrate and a second transparent substrate disposed opposite to each other, a liquid crystal layer located between the first transparent substrate and the second transparent substrate, a first polarizer and a second polarizer located on both sides of the liquid crystal layer, and a first transparent electrode and a second transparent electrode located between the first transparent substrate and the second transparent substrate; the polarization direction of the first polarizer and the polarization direction of the second polarizer are perpendicular; the liquid crystal display panel is used to be in a light-transmitting state or a light-blocking state according to the voltage applied to the first transparent electrode and the second transparent electrode.

[0011] Furthermore, in this application, the double-sided display may also include a light sensor, which detects the intensity of ambient light. The liquid crystal display panel can control the light transmittance according to the intensity of ambient light detected by the light sensor. For example, the stronger the intensity of ambient light detected by the light sensor, the lower the light transmittance of the liquid crystal display panel.

[0012] For example, the first transparent display panel may include a third transparent substrate and a fourth transparent substrate disposed opposite to each other, and a plurality of first pixels located between the third transparent substrate and the fourth transparent substrate; at least some of the plurality of first pixels have light-transmitting areas between adjacent first pixels; wherein each first pixel includes at least one light-emitting diode and a pixel circuit for driving the light-emitting diode to emit light.

[0013] For example, the second transparent display panel includes a fifth transparent substrate and a sixth transparent substrate disposed opposite to each other, and a plurality of second pixels located between the fifth transparent substrate and the sixth transparent substrate; at least some of the plurality of second pixels have light-transmitting areas between adjacent second pixels; wherein each second pixel includes a light-emitting diode and a pixel circuit for driving the light-emitting diode to emit light.

[0014] For example, in this application, the first pixel in the first transparent display panel can be set to correspond one-to-one with the second pixel in the second transparent display panel. Of course, each first pixel in the first transparent display panel can correspond to one or more second pixels in the second transparent display panel, or each second pixel in the second transparent display panel can correspond to one or more first pixels in the first transparent display panel. No limitation is made here.

[0015] Optionally, to reduce the thickness of the double-sided display, the first transparent substrate of the liquid crystal display panel and the third transparent substrate of the first transparent display panel are the same substrate. That is, the liquid crystal display panel and the first transparent display panel share the same substrate.

[0016] Furthermore, the second transparent substrate of the liquid crystal display panel and the fifth transparent substrate of the second transparent display panel are the same substrate. That is, the liquid crystal display panel and the second transparent display panel share the same substrate. The second polarizer in the liquid crystal display panel can be disposed on the side of the substrate facing the liquid crystal layer.

[0017] Furthermore, this application may also provide a first touchscreen on the light-emitting side of the first transparent display panel, and / or a second touchscreen on the light-emitting side of the second transparent display panel. This enables the dual-sided display to achieve touch functionality.

[0018] Secondly, this application provides a double-sided display, comprising: a first liquid crystal display panel and a second liquid crystal display panel disposed opposite to each other, and a transparent light-emitting diode display panel located between the first liquid crystal display panel and the second liquid crystal display panel; the first liquid crystal display panel includes a plurality of first pixels, and the second liquid crystal display panel includes a plurality of second pixels; the transparent light-emitting diode display panel is used to provide a light source for the first liquid crystal display panel and the second liquid crystal display panel, the transparent light-emitting diode display panel includes a plurality of third pixels, at least one of the third pixels corresponds to at least one first pixel and / or at least one second pixel, at least a portion of the plurality of third pixels have a light-transmitting area between adjacent third pixels, and at least one light-transmitting area corresponds to at least one first pixel and / or at least one second pixel.

[0019] In this application, a transparent light-emitting diode (LED) display panel is used to provide a light source for the first and second liquid crystal display panels, thereby enabling double-sided display through the first and second liquid crystal display panels. By utilizing the light-transmitting area of ​​the transparent LED display panel and controlling the light transmission state of the first and second liquid crystal display panels, a transparent function can be achieved.

[0020] In practical implementation, for the first liquid crystal display panel, the second liquid crystal display panel, and the transparent light-emitting diode display panel, each of the third pixels may correspond to at least one first pixel and at least one second pixel, thereby ensuring that pixel control can be achieved in the area corresponding to each third pixel in both the first and second liquid crystal display panels. Each light-transmitting area corresponds to at least one first pixel and at least one second pixel, thereby ensuring that the transmittance can be controlled on both sides of each light-transmitting area.

[0021] For example, the display modes of the dual-sided display provided in this application embodiment may include a single-sided display mode and a dual-sided display mode, wherein: when the dual-sided display is in a single-sided display mode:

[0022] In the first scenario, the transparent LED display panel displays content based on the content displayed on one side, meaning the transparent LED display panel functions as a display panel. In the first liquid crystal display panel, the first pixel corresponding to the plurality of third pixels is in a transparent state, thus achieving display on the first liquid crystal display panel side; or, in the second liquid crystal display panel, the second pixel corresponding to the plurality of third pixels is in a transparent state, thus achieving display on the second liquid crystal display panel side.

[0023] In the second scenario, the transparent LED display panel is used to provide a light source for either the first or second liquid crystal display panel. That is, the transparent LED display panel serves as a backlight for either the first or second liquid crystal display panel. The first liquid crystal display panel displays information according to the loaded display information, thereby achieving display on the first liquid crystal display panel side; or the second liquid crystal display panel displays information according to the loaded display information, thereby achieving display on the second liquid crystal display panel side.

[0024] When the dual-sided display is in dual-side display mode: the transparent light-emitting diode display panel is used to provide a light source for the first liquid crystal display panel and the second liquid crystal display panel. The first pixel of the plurality of first pixels of the first liquid crystal display panel that corresponds to the third pixel of the transparent light-emitting diode display panel is displayed according to the loaded display information, thereby realizing the display on the first liquid crystal display panel side. The second pixel of the plurality of second pixels of the second liquid crystal display panel that corresponds to the third pixel of the transparent light-emitting diode display panel is displayed according to the loaded display information, thereby realizing the display on the second liquid crystal display panel side.

[0025] Furthermore, in this application, when the dual-sided display is in the dual-sided display mode, the brightness value of at least one of the third pixels in the transparent light-emitting diode display panel is determined according to the maximum brightness value among the brightness values ​​of the corresponding at least one first pixel and / or the at least one second pixel. This avoids all third pixels in the transparent light-emitting diode display panel being lit at the maximum brightness value, thereby reducing the power consumption of the dual-sided display.

[0026] Specifically, the display modes of the dual-sided display provided in this application embodiment may further include a transparent display mode and a non-transparent display mode, wherein: when the dual-sided display is in the transparent display mode, the first pixel of the plurality of first pixels of the first liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-transmitting state, and the second pixel of the plurality of second pixels of the second liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-transmitting state. When the dual-sided display is in the non-transparent display mode, the first pixel of the plurality of first pixels of the first liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state; or, the second pixel of the plurality of second pixels of the second liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state; or, the first pixel of the plurality of first pixels of the first liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state, and simultaneously, the second pixel of the plurality of second pixels of the second liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state.

[0027] For example, the first liquid crystal display panel mainly includes: a first transparent substrate and a second transparent substrate disposed opposite to each other, a first liquid crystal layer located between the first transparent substrate and the second transparent substrate, a first polarizer and a second polarizer located on both sides of the first liquid crystal layer, and a first transparent electrode and a second transparent electrode located between the first transparent substrate and the second transparent substrate; the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer.

[0028] The first transparent electrode may include a plurality of first pixel electrodes, which correspond to the plurality of first pixels. For example, the plurality of first pixel electrodes and the plurality of first pixels may be configured in a one-to-one correspondence, which is not limited here.

[0029] For example, the second liquid crystal display panel mainly includes: a third transparent substrate and a fourth transparent substrate disposed opposite to each other, a second liquid crystal layer located between the third transparent substrate and the fourth transparent substrate, a third polarizer and a fourth polarizer located on both sides of the second liquid crystal layer, and a third transparent electrode and a fourth transparent electrode located between the third transparent substrate and the fourth transparent substrate; the polarization direction of the third polarizer is perpendicular to the polarization direction of the fourth polarizer.

[0030] The third transparent electrode may include a plurality of second pixel electrodes, which correspond to the plurality of second pixels. For example, the plurality of second pixel electrodes and the plurality of second pixels may be configured in a one-to-one correspondence, which is not limited here.

[0031] For example, the transparent light-emitting diode display panel may include a sixth transparent substrate disposed opposite to a fifth transparent substrate, and a plurality of third pixels located between the fifth transparent substrate and the sixth transparent substrate; each of the plurality of third pixels includes at least one light-emitting diode and a pixel circuit for driving the light-emitting diode to emit light.

[0032] Optionally, in order to reduce the thickness of the double-sided display, the second transparent substrate and the fifth transparent substrate are the same substrate, that is, the first liquid crystal display panel and the transparent light-emitting diode display panel share the same substrate; and / or, the fourth transparent substrate and the sixth transparent substrate are the same substrate, that is, the second liquid crystal display panel and the transparent light-emitting diode display panel share the same substrate.

[0033] Furthermore, the dual-sided display may also include a first touchscreen disposed on the light-emitting side of the first liquid crystal display panel, and / or a second touchscreen disposed on the light-emitting side of the second liquid crystal display panel, thereby enabling the dual-sided display to have touch functionality.

[0034] Thirdly, this application provides a display device comprising a circuit board and a double-sided display as described in the first aspect or various embodiments thereof, or a double-sided display as described in the second aspect or various embodiments thereof.

[0035] Fourthly, this application provides an automobile, including a body, a chassis, and a controller; wherein at least one window of the body is formed using a double-sided display as described in the first aspect or various embodiments thereof, or at least one window of the body is formed using a double-sided display as described in the second aspect or various embodiments thereof.

[0036] Fifthly, this application provides an interaction method applied to the automobile provided in the fourth aspect above. The interaction method includes: firstly, the controller of the automobile acquires information from outside or inside the vehicle; then, the controller obtains display control information based on the acquired information; and then, the controller sends the display control information to the windows of the automobile so that the windows display information according to the display control information.

[0037] For example, the controller can acquire information from outside or inside the vehicle via onboard sensors.

[0038] For example, the controller can directly process the acquired information to generate display control information.

[0039] For example, the controller can first provide the acquired information to the cloud wirelessly so that the cloud can process the acquired information to generate display control information; then the controller can wirelessly receive the display control information fed back from the cloud.

[0040] The technical effects that can be achieved by any of the third to fifth aspects mentioned above can be described with reference to the technical effects that can be achieved by any possible design in the first and second aspects mentioned above, and will not be repeated here. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a double-sided display provided in an embodiment of this application;

[0042] Figure 2 This is a schematic diagram of another double-sided display provided in an embodiment of this application;

[0043] Figure 3 This is a top view of a first transparent display panel provided in an embodiment of this application;

[0044] Figure 4 This is a schematic diagram of the structure of another double-sided display provided in an embodiment of this application;

[0045] Figure 5 This is a schematic diagram of the structure of another double-sided display provided in an embodiment of this application;

[0046] Figure 6 This is a schematic diagram of the structure of another double-sided display provided in an embodiment of this application;

[0047] Figure 7 This is a schematic diagram of the structure of another double-sided display provided in an embodiment of this application;

[0048] Figure 8A top view of the first transparent electrode in a first liquid crystal display panel provided in an embodiment of this application;

[0049] Figure 9 This is a schematic diagram of the structure of another double-sided display provided in an embodiment of this application;

[0050] Figure 10 This is a schematic diagram of the structure of another double-sided display provided in an embodiment of this application;

[0051] Figure 11 A flowchart illustrating an interaction method provided in an embodiment of this application;

[0052] Figure 12 A flowchart illustrating another interaction method provided in an embodiment of this application;

[0053] Figure 13 A flowchart illustrating another interaction method provided in an embodiment of this application;

[0054] Figure 14 This is a flowchart illustrating another interaction method provided in an embodiment of this application. Detailed Implementation

[0055] To facilitate understanding of the double-sided display provided in this application embodiment, its application scenario will be introduced first below.

[0056] The double-sided display proposed in this application can be applied to various scenarios requiring double-sided display and transparent display functionality, such as building windows, car windows, and shop windows. It should be noted that the double-sided display proposed in this application is intended for use in these and any other suitable application scenarios.

[0057] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0058] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0059] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0060] Example 1

[0061] For example, such as Figure 1 As shown, a double-sided display 10 provided in one embodiment of this application includes: a first transparent display panel 11 and a second transparent display panel 12 disposed opposite to each other, and a dimming layer 13 located between the first transparent display panel 11 and the second transparent display panel 12; the dimming layer 13 is used to be in a light-transmitting state or a light-blocking state according to the applied voltage.

[0062] In practical implementation, a transparent display panel refers to a display panel with a light-transmitting area in its display area. When the display panel is not displaying an image, an observer can see the environment behind the display panel from the front of the display panel through the light-transmitting area. When the display panel displays an image, the light-transmitting area in the display area can still be transparent.

[0063] In this application, the first transparent display panel 11 and the second transparent display panel 12 can be any display panel that can realize the transparent display function, such as existing liquid crystal (LC) transparent display panels or light-emitting diode (LED) transparent display panels, etc., and are not limited here.

[0064] In this application, when the dimming layer 13 is in a light-shielding state, it not only enables the double-sided display 10 to function as a light-shielding element, but also prevents the first transparent display panel 11 and the second transparent display panel 12 from interfering with each other when they are displayed simultaneously. When the dimming layer 13 is in a light-transmitting state, light can pass through the light-transmitting areas of the first transparent display panel 11 and the second transparent display panel 12, thereby achieving the transparency function.

[0065] For example, the display modes of the dual-sided display 10 provided in this application embodiment may include a non-transparent display mode and a transparent display mode.

[0066] When the dual-sided display 10 is in the non-transparent display mode, the dimming layer 13 presents a light-blocking state according to the applied voltage, and the first transparent display panel 11 and the second transparent display panel 12 can display according to their respective loaded display information;

[0067] When the dual-sided display 10 is in the transparent display mode, the dimming layer 13 becomes transparent according to the applied voltage, and the first transparent display panel 11 and the second transparent display panel 12 display according to their respective applied display information.

[0068] In this application, the displays of the first transparent display panel and the second transparent display panel are independent of each other. That is, the first transparent display panel can display information loaded on the first transparent display panel at any time as needed, and the second transparent display panel can also display information loaded on the second transparent display panel at any time as needed. The display images of the first transparent display panel and the second transparent display panel can be the same or different, which is not limited here.

[0069] In this application, the light-transmitting areas of the first transparent display panel 11 and the second transparent display panel 12 need to overlap for the double-sided display 10 to transmit light. Therefore, with the areas of the light-transmitting areas of the first transparent display panel 11 and the second transparent display panel 12 fixed, the larger the area of ​​the overlapping area between the light-transmitting areas of the first transparent display panel 11 and the second transparent display panel 12, the larger the light-transmitting area of ​​the double-sided display 10.

[0070] Optionally, in this application, the light-transmitting area of ​​the first transparent display panel 11 may cover the light-transmitting area of ​​the second transparent display panel 12, or the light-transmitting area of ​​the second transparent display panel 12 may cover the light-transmitting area of ​​the first transparent display panel 11.

[0071] Furthermore, when the light-transmitting area of ​​the first transparent display panel 11 completely overlaps with the light-transmitting area of ​​the second transparent display panel 12, it can be ensured that the double-sided display 10 has the maximum light-transmitting area while maintaining the same display area on both sides.

[0072] For example, the dimming layer can be formed using any structure, such as an electrochromic material or a liquid crystal display panel, that can achieve a light-transmitting or light-blocking state depending on the applied voltage; no limitation is made here.

[0073] In one embodiment, the dimming layer may include a liquid crystal display panel. The liquid crystal display panel can control the light transmittance to different degrees according to the applied voltage, thereby presenting different gray levels from fully transparent to completely opaque. Taking a 255 gray level liquid crystal display panel as an example, the liquid crystal display panel can present 256 levels of light transmittance from 0 to 255 gray levels, thereby achieving diversification of the displayed background.

[0074] In specific implementation, the liquid crystal display panel in this application can be a monochrome liquid crystal display panel, that is, the liquid crystal display panel does not have a color photoresist layer.

[0075] For example, such as Figure 2 As shown, the liquid crystal display panel 130 mainly includes: a first transparent substrate 131 and a second transparent substrate 132 disposed opposite to each other, a liquid crystal layer 133 located between the first transparent substrate 131 and the second transparent substrate 132, a first polarizer 134 and a second polarizer 135 located on both sides of the liquid crystal layer 133, and a first transparent electrode 136 and a second transparent electrode 137 located between the first transparent substrate 131 and the second transparent substrate 132; the polarization direction of the first polarizer 134 is perpendicular to the polarization direction of the second polarizer 135; the liquid crystal display panel is used to be in a light-transmitting state or a light-blocking state according to the voltage applied to the first transparent electrode 131 and the second transparent electrode 132.

[0076] The working principle of the liquid crystal display panel is as follows: the voltage applied to the first transparent electrode 131 and the second transparent electrode 132 can generate an electric field. The electric field controls the deflection of liquid crystal molecules in the liquid crystal layer 133. The voltage difference between the first transparent electrode 131 and the second transparent electrode 132 is different, resulting in different electric field strengths, which in turn causes different deflection angles of the liquid crystal molecules, and thus different light transmittance of the liquid crystal display panel.

[0077] In this application, the liquid crystal display panel 130 can be a normally black liquid crystal display panel, that is, the liquid crystal display panel 130 is in a light-blocking state when no voltage is applied. Of course, the liquid crystal display panel 130 can also be a normally white liquid crystal display panel, that is, the liquid crystal display panel 130 is in a light-transmitting state when no voltage is applied. There is no limitation here.

[0078] In specific implementations, the first polarizer 134 is generally disposed on the side of the first transparent substrate 131 facing away from the liquid crystal layer 133, and the second polarizer 135 is generally disposed on the side of the second transparent substrate facing away from the liquid crystal layer 133. The first transparent electrode 131 and the second transparent electrode 132 can be disposed on opposite sides of the liquid crystal layer 133, or they can be disposed on the same side of the liquid crystal layer 133, which is not limited here.

[0079] Furthermore, in this application, the double-sided display may also include a light sensor, which detects the intensity of ambient light. The liquid crystal display panel can control the light transmittance according to the intensity of ambient light detected by the light sensor. For example, the stronger the intensity of ambient light detected by the light sensor, the lower the light transmittance of the liquid crystal display panel.

[0080] In practical implementation, since LED display panels have the characteristics of self-illumination, simple structure, ultra-thinness, fast response speed, wide viewing angle and low power consumption compared with liquid crystal display panels, in one embodiment, both the first transparent display panel and the second transparent display panel can be set as LED transparent display panels.

[0081] For example, such as Figure 2 As shown, the first transparent display panel 11 may include a third transparent substrate 111 and a fourth transparent substrate 112 disposed opposite to each other, and a plurality of first pixels pix1 located between the third transparent substrate 111 and the fourth transparent substrate 112; at least some of the plurality of first pixels pix1 have a light-transmitting region s1 between adjacent first pixels pix1; wherein each first pixel pix1 includes at least one light-emitting diode (LED). Figure 2 (not shown in the image) and pixel circuitry for driving the light-emitting diode to emit light (not shown in the image) Figure 2 (Not shown in the video).

[0082] In this application, the plurality of first pixels pix1 in the first transparent display panel 11 may include at least red, blue, and green pixels, and may also include yellow pixels, etc., without limitation. In addition, this application does not limit the arrangement of the first pixels of different colors, and can be any arrangement that can realize color display.

[0083] In the first transparent display panel 11, the ratio of the total area of ​​all light-transmitting areas s1 to the total area of ​​the display area of ​​the first transparent display panel 11 can be set according to actual conditions and is not limited here. For example, in this application, the total area of ​​all light-transmitting areas s1 in the first transparent display panel 11 can be set to account for 40% to 60% of the total area of ​​the display area of ​​the first transparent display panel 11, such as 40%, 45%, 50%, 55%, or 60%.

[0084] Furthermore, in this application, the plurality of first pixels and the plurality of light-transmitting areas in the first transparent display panel can be evenly distributed. For example, adjacent first pixels along the row direction each have a light-transmitting area, or adjacent first pixels along the column direction each have a light-transmitting area, or, as... Figure 3 As shown, each of the first pixels pix1 adjacent along the row direction X has a light-transmitting area s1, and each of the first pixels pix1 adjacent along the column direction Y has a light-transmitting area s1.

[0085] For example, such as Figure 2 As shown, the second transparent display panel 12 includes a fifth transparent substrate 121 and a sixth transparent substrate 122 disposed opposite to each other, and a plurality of second pixels pix2 located between the fifth transparent substrate 121 and the sixth transparent substrate 122; at least some of the plurality of second pixels pix2 have a light-transmitting region s2 between adjacent second pixels pix2; wherein, each second pixel pix2 includes a light-emitting diode (LED). Figure 2 (not shown in the image) and pixel circuitry for driving the light-emitting diode to emit light (not shown in the image) Figure 2 (Not shown in the video).

[0086] In this application, the plurality of second pixels pix2 in the second transparent display panel 12 may include at least red, blue, and green pixels, and may also include yellow pixels, etc., without limitation. Furthermore, this application does not limit the arrangement of the second pixels of different colors; it can be any arrangement capable of achieving color display.

[0087] Furthermore, in this application, the arrangement of the first pixel in the first transparent display panel and the arrangement of the second pixel in the second transparent display panel may be the same or different, and no limitation is made here.

[0088] In the second transparent display panel 12, the ratio of the total area of ​​all light-transmitting areas s2 to the total area of ​​the display area of ​​the second transparent display panel 12 can be set according to actual conditions and is not limited here. For example, in this application, the total area of ​​all light-transmitting areas s2 in the second transparent display panel 12 can be set to account for 40% to 60% of the total area of ​​the display area of ​​the second transparent display panel 12, such as 40%, 45%, 50%, 55%, or 60%.

[0089] Furthermore, in this application, the multiple second pixels and multiple light-transmitting areas in the second transparent display panel can be evenly distributed. For example, each adjacent second pixel along the row direction has a light-transmitting area, or each adjacent second pixel along the column direction has a light-transmitting area, or each adjacent second pixel along the row direction and each adjacent second pixel along the column direction has a light-transmitting area.

[0090] For example, in this application, the first pixel in the first transparent display panel can be set to correspond one-to-one with the second pixel in the second transparent display panel. Of course, each first pixel in the first transparent display panel can correspond to one or more second pixels in the second transparent display panel, or each second pixel in the second transparent display panel can correspond to one or more first pixels in the first transparent display panel. No limitation is made here.

[0091] In the first and second transparent display panels, the pixel circuit is generally composed of thin-film transistors with capacitors, and the light-emitting diode generally includes an anode layer, a light-emitting layer and a cathode layer. The anode layer is electrically connected to the pixel circuit, and the cathode layer is generally set as a transparent conductive layer that is formed as a whole. All light-emitting diodes can share the cathode layer, and the light-emitting layer can be an organic light-emitting layer, which is not limited here.

[0092] Optionally, in order to reduce the thickness of the double-sided display 10, such as Figure 4 As shown, the first transparent substrate 131 of the liquid crystal display panel 130 and the third transparent substrate 111 of the first transparent display panel 11 are the same substrate. That is, the liquid crystal display panel 130 and the first transparent display panel 11 share substrate 111 / 131. The first polarizer 134 in the liquid crystal display panel 130 can be disposed on the side of substrate 111 / 131 facing the liquid crystal layer 133.

[0093] Furthermore, such as Figure 4As shown, the second transparent substrate 132 of the liquid crystal display panel 130 and the fifth transparent substrate 121 of the second transparent display panel 12 are the same substrate. That is, the liquid crystal display panel 130 and the second transparent display panel 12 share substrate 121 / 132. The second polarizer 135 in the liquid crystal display panel 130 can be disposed on the side of substrate 121 / 132 facing the liquid crystal layer 133.

[0094] The dual-sided display provided in this application embodiment may further include a control circuit, which can receive display control information for controlling the display. It should be noted that the control circuit can be integrated on at least one of the first transparent display panel, the second transparent display panel, and the dimming layer. Alternatively, the control circuit can be independently of the first transparent display panel, the second transparent display panel, and the dimming layer, and then electrically connected to each of the three transparent display panels via wires. The control circuit can also be partially integrated on at least one of the first transparent display panel, the second transparent display panel, and the dimming layer, and partially independent of them, and then electrically connected to each of the three transparent display panels via wires. For example, when the dual-sided display is applied to a vehicle window, the control circuit can be located on the vehicle window, or outside the vehicle window, or partially on the vehicle window and partially outside the vehicle window.

[0095] Furthermore, this application may also provide a first touchscreen on the light-emitting side of the first transparent display panel, and / or a second touchscreen on the light-emitting side of the second transparent display panel. This enables the dual-sided display to achieve touch functionality.

[0096] In specific implementation, such as Figure 5 As shown, the first touch screen 14 can be disposed on the outside of the first transparent display panel 11, or it can be integrated into the first transparent display panel. The second touch screen 15 can be disposed on the outside of the second transparent display panel 12, or it can be integrated into the second transparent display panel. No limitation is made here.

[0097] In this application, the control circuit is also electrically connected to the first touch screen and / or the second touch screen, for driving the first touch screen and / or the second touch screen and receiving touch signals fed back by the first touch screen and / or the second touch screen.

[0098] Example 2

[0099] For example, such as Figure 6As shown, another embodiment of this application provides a double-sided display 20 including: a first liquid crystal display panel 21 and a second liquid crystal display panel 22 disposed opposite to each other, and a transparent light-emitting diode display panel 23 located between the first liquid crystal display panel 21 and the second liquid crystal display panel 22; the first liquid crystal display panel 21 includes a plurality of first pixels pix1, and the second liquid crystal display panel 22 includes a plurality of second pixels pix2; the transparent light-emitting diode display panel 23 is used to provide a light source for the first liquid crystal display panel 21 and the second liquid crystal display panel 22, the transparent light-emitting diode display panel 23 includes a plurality of third pixels pix3, at least one of the third pixels pix3 corresponds to at least one first pixel pix1 and / or at least one second pixel pix2, at least some of the plurality of third pixels pix3 have a light-transmitting region s3 between adjacent third pixels pix3, and at least one light-transmitting region s3 corresponds to at least one first pixel pix1 and / or at least one second pixel pix2.

[0100] In this application, a transparent light-emitting diode display panel 23 is used to provide a light source for the first liquid crystal display panel 21 and the second liquid crystal display panel 22, thereby enabling double-sided display through the first liquid crystal display panel 21 and the second liquid crystal display panel 22. By utilizing the light-transmitting area of ​​the transparent light-emitting diode display panel 23 and controlling the light transmission state of the first liquid crystal display panel 21 and the second liquid crystal display panel 22, a transparent function can be achieved.

[0101] In the transparent LED display panel 23, the ratio of the total area of ​​all light-transmitting areas s3 to the total area of ​​the display area of ​​the transparent LED display panel 23 can be set according to actual conditions and is not limited here. For example, in this application, the total area of ​​all light-transmitting areas s3 in the transparent LED display panel 23 can be set to account for 40% to 60% of the total area of ​​the display area of ​​the transparent LED display panel 23, such as 40%, 45%, 50%, 55%, or 60%.

[0102] Furthermore, in this application, the plurality of third pixels and the plurality of light-transmitting areas in the transparent light-emitting diode display panel can be evenly distributed. For example, each of the third pixels adjacent in the row direction has a light-transmitting area, or each of the third pixels adjacent in the column direction has a light-transmitting area, or each of the third pixels adjacent in the row direction and each of the third pixels adjacent in the column direction has a light-transmitting area.

[0103] In this application, the plurality of third pixels in the transparent LED display panel may include at least red, blue, and green pixels, and may also include yellow pixels, etc., without limitation. Furthermore, this application does not limit the arrangement of the third pixels of different colors in the transparent LED display panel; it can be any arrangement capable of achieving color display.

[0104] In specific implementations, this application allows for pixel control in the areas corresponding to each third pixel (pixel 3) of the first liquid crystal display panel, the second liquid crystal display panel, and the transparent light-emitting diode display panel. Each light-transmitting area (s3) corresponds to at least one first pixel (pixel 1) and at least one second pixel (pixel 2), ensuring that pixel control can be achieved in both the first and second liquid crystal display panels within the area corresponding to each third pixel (pixel 3). Each light-transmitting area (s3) corresponds to at least one first pixel (pixel 1) and at least one second pixel (pixel 2), ensuring that light transmittance control can be achieved on both sides of each light-transmitting area (s3).

[0105] For example, the display modes of the dual-sided display 20 provided in this application embodiment may include a single-sided display mode and a dual-sided display mode, wherein:

[0106] When the dual-sided display 20 is in single-sided display mode:

[0107] In the first scenario, the transparent LED display panel 23 displays content based on the content displayed on one side, meaning the transparent LED display panel 23 functions as a display panel. Alternatively, the first pixel in the first liquid crystal display panel 21 corresponding to the plurality of third pixels is in a transparent state, thus achieving display on the first liquid crystal display panel 21 side; or, the second pixel in the second liquid crystal display panel 22 corresponding to the plurality of third pixels is in a transparent state, thus achieving display on the second liquid crystal display panel 22 side.

[0108] In the second scenario, the transparent LED display panel 23 is used to provide a light source for the first liquid crystal display panel 21 or the second liquid crystal display panel 22. That is, the transparent LED display panel 23 serves as a backlight for the first liquid crystal display panel 21 or the second liquid crystal display panel 22. The first liquid crystal display panel 21 displays according to the loaded display information, thereby achieving display on the first liquid crystal display panel 21 side; or the second liquid crystal display panel 22 displays according to the loaded display information, thereby achieving display on the second liquid crystal display panel 22 side.

[0109] When the dual-sided display 20 is in dual-sided display mode: the transparent light-emitting diode display panel 23 is used to provide a light source for the first liquid crystal display panel 21 and the second liquid crystal display panel 22. The first pixel of the plurality of first pixels of the first liquid crystal display panel 21 that corresponds to the third pixel of the transparent light-emitting diode display panel 23 is displayed according to the loaded display information, thereby realizing the display on the first liquid crystal display panel 21 side. The second pixel of the plurality of second pixels of the second liquid crystal display panel 22 that corresponds to the third pixel of the transparent light-emitting diode display panel 23 is displayed according to the loaded display information, thereby realizing the display on the second liquid crystal display panel 22 side.

[0110] In this application, the display of the first liquid crystal display panel and the display of the second liquid crystal display panel are independent of each other. That is, the first liquid crystal display panel can display information at any time as needed based on the display information loaded on the first pixel, and the second liquid crystal display panel can also display information at any time as needed based on the display information loaded on the second pixel. Furthermore, the display images of the first liquid crystal display panel and the display images of the second liquid crystal display panel can be the same or different, and this is not limited here.

[0111] Furthermore, in this application, when the dual-sided display is in the dual-sided display mode, the brightness value of at least one of the third pixels in the transparent light-emitting diode display panel is determined according to the maximum brightness value among the brightness values ​​of the corresponding at least one first pixel and / or the at least one second pixel. This avoids all third pixels in the transparent light-emitting diode display panel being lit at the maximum brightness value, thereby reducing the power consumption of the dual-sided display.

[0112] It should be noted that in this application, regardless of whether it is in single-sided or dual-sided display mode, the pixels that realize the display function are mainly the third pixel and the pixels corresponding to the third pixel in the first and second liquid crystal display panels. The control of the pixels corresponding to the light-transmitting areas in the first and second liquid crystal display panels is not limited. When all pixels corresponding to the light-transmitting areas in both the first and second liquid crystal display panels are in a light-transmitting state, transparent display can be achieved. When at least one pixel in the first and second liquid crystal display panels corresponding to the light-transmitting areas on both sides is in a light-blocking state, non-transparent display can be achieved.

[0113] Specifically, the display modes of the double-sided display provided in the embodiments of this application may further include a transparent display mode and a non-transparent display mode, wherein:

[0114] When the dual-sided display is in the transparent display mode, the first pixel in the plurality of first pixels of the first liquid crystal display panel that corresponds to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-transmitting state, and the second pixel in the plurality of second pixels of the second liquid crystal display panel that corresponds to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-transmitting state.

[0115] When the dual-sided display is in the non-transparent display mode, the first pixel of the plurality of first pixels of the first liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state; or, the second pixel of the plurality of second pixels of the second liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state; or, the first pixel of the plurality of first pixels of the first liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state, and at the same time, the second pixel of the plurality of second pixels of the second liquid crystal display panel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state.

[0116] In specific implementation, both the first liquid crystal display panel and the second liquid crystal display panel in this application can be monochrome liquid crystal display panels, that is, no color photoresist layer is provided in the liquid crystal display panel.

[0117] For example, such as Figure 7 As shown, the first liquid crystal display panel 21 mainly includes: a first transparent substrate 211 and a second transparent substrate 212 disposed opposite to each other, a first liquid crystal layer 213 located between the first transparent substrate 211 and the second transparent substrate 212, a first polarizer 214 and a second polarizer 215 located on both sides of the first liquid crystal layer 213, and a first transparent electrode 216 and a second transparent electrode 217 located between the first transparent substrate 211 and the second transparent substrate 212; the polarization direction of the first polarizer 214 is perpendicular to the polarization direction of the second polarizer 215.

[0118] Among them, see Figure 8 The first transparent electrode 216 may include a plurality of first pixel electrodes 2161, the plurality of first pixel electrodes 2161 corresponding to the plurality of first pixels. For example, the plurality of first pixel electrodes and the plurality of first pixels may be configured in a one-to-one correspondence, which is not limited here.

[0119] In specific implementations, the first polarizer 214 is generally disposed on the side of the first transparent substrate 211 facing away from the first liquid crystal layer 213, and the second polarizer 215 is generally disposed on the side of the second transparent substrate 212 facing away from the first liquid crystal layer 213. The first transparent electrode 216 and the second transparent electrode 217 can be disposed on opposite sides of the first liquid crystal layer 213, or they can be disposed on the same side of the first liquid crystal layer 213; this is not limited here.

[0120] In this application, the first liquid crystal display panel can be a normally black liquid crystal display panel or a normally white liquid crystal display panel, and no limitation is made here.

[0121] Taking the first liquid crystal display panel as an example, see Figure 8 Since the first transparent electrode 216 includes a plurality of first pixel electrodes 2161, each first pixel electrode 2161 corresponds to a first pixel, by addressing and controlling the plurality of first pixel electrodes 2161, the address transmittance of the plurality of first pixels in the first liquid crystal display panel 21 can be adjusted.

[0122] For example, such as Figure 7 As shown, the second liquid crystal display panel 22 mainly includes: a third transparent substrate 221 and a fourth transparent substrate 222 disposed opposite to each other, a second liquid crystal layer 223 located between the third transparent substrate 221 and the fourth transparent substrate 222, a third polarizer 224 and a fourth polarizer 225 respectively located on both sides of the second liquid crystal layer 223, and a third transparent electrode 226 and a fourth transparent electrode 227 located between the third transparent substrate 221 and the fourth transparent substrate 222; the polarization direction of the third polarizer 224 is perpendicular to the polarization direction of the fourth polarizer 225.

[0123] The third transparent electrode may include a plurality of second pixel electrodes, which correspond to the plurality of second pixels. For example, the plurality of second pixel electrodes and the plurality of second pixels may be configured in a one-to-one correspondence, which is not limited here.

[0124] In practical implementation, the third polarizer 224 is generally disposed on the side of the third transparent substrate 221 opposite to the second liquid crystal layer 223, and the fourth polarizer 225 is generally disposed on the side of the fourth transparent substrate 222 opposite to the second liquid crystal layer 223. The third transparent electrode 226 and the fourth transparent electrode 227 can be disposed on opposite sides of the second liquid crystal layer 223, or they can be disposed on the same side of the second liquid crystal layer 223, which is not limited here.

[0125] In this application, the second liquid crystal display panel can be a normally black liquid crystal display panel or a normally white liquid crystal display panel, and no limitation is made here.

[0126] For example, such as Figure 7 As shown, the transparent light-emitting diode display panel 23 may include a sixth transparent substrate 232 disposed opposite to a fifth transparent substrate 231, and a plurality of third pixel pix3 located between the fifth transparent substrate 231 and the sixth transparent substrate 232; each of the plurality of third pixel pix3 includes at least one light-emitting diode (LED). Figure 7 (not shown in the image) and pixel circuitry for driving the light-emitting diode to emit light (not shown in the image) Figure 7 (Not shown in the video).

[0127] In the transparent light-emitting diode display panel, the pixel circuit is generally composed of thin-film transistors with capacitors. The light-emitting diode generally includes an anode layer, a light-emitting layer and a cathode layer. The anode layer is electrically connected to the pixel circuit. The cathode layer is generally set as a transparent conductive layer that is formed as a whole. All light-emitting diodes share the cathode layer. The light-emitting layer can be an organic light-emitting layer, which is not limited here.

[0128] Optionally, in order to reduce the thickness of the double-sided display 20, such as Figure 9 As shown, the second transparent substrate 212 and the fifth transparent substrate 231 are the same substrate 231 / 212, that is, the first liquid crystal display panel 21 and the transparent light-emitting diode display panel 23 share the same substrate 231 / 212; wherein, the second polarizer 215 in the first liquid crystal display panel 21 can be disposed on the side of substrate 231 / 212 facing the first liquid crystal layer 213. And / or, the fourth transparent substrate 222 and the sixth transparent substrate 232 are the same substrate 232 / 222, that is, the second liquid crystal display panel 22 and the transparent light-emitting diode display panel 23 share the same substrate 232 / 222; wherein, the fourth polarizer 225 in the second liquid crystal display panel 22 can be disposed on the side of substrate 232 / 222 facing the second liquid crystal layer 223.

[0129] The dual-sided display provided in this application embodiment may further include a control circuit, which can receive control information for controlling the display. It should be noted that the control circuit can be integrated on at least one of the first liquid crystal display panel, the second liquid crystal display panel, and the transparent light-emitting diode display panel. Alternatively, the control circuit can be independently of the first liquid crystal display panel, the second liquid crystal display panel, and the transparent light-emitting diode display panel, and then electrically connected to each of them via wires. The control circuit can also be partially integrated on at least one of the first liquid crystal display panel, the second liquid crystal display panel, and the transparent light-emitting diode display panel, and partially independent of them, and then electrically connected to each of them via wires. For example, when the dual-sided display is applied to a vehicle window, the control circuit can be located on the vehicle window, or outside the vehicle window, or partially on the vehicle window and partially outside the vehicle window.

[0130] Furthermore, the dual-sided display may also include a first touchscreen disposed on the light-emitting side of the first liquid crystal display panel, and / or a second touchscreen disposed on the light-emitting side of the second liquid crystal display panel, thereby enabling the dual-sided display to have touch functionality.

[0131] In specific implementation, such as Figure 10 As shown, the first touch screen 24 can be disposed on the outside of the first liquid crystal display panel 21, or it can be integrated into the first liquid crystal display panel. The second touch screen 25 can be disposed on the outside of the second liquid crystal display panel 22, or it can be integrated into the second liquid crystal display panel. No limitation is made here.

[0132] In this application, the control circuit is also electrically connected to the first touch screen and / or the second touch screen, for driving the first touch screen and / or the second touch screen and receiving touch signals fed back by the first touch screen and / or the second touch screen.

[0133] Based on the same technical concept, embodiments of this application also provide a display device, including a circuit board and any of the aforementioned double-sided displays provided in embodiments of this application. Since the principle by which this display device solves the problem is similar to that of the aforementioned double-sided display, the implementation of this display device can refer to the implementation of the aforementioned double-sided display, and repeated details will not be elaborated further.

[0134] The double-sided display or display device provided in this application embodiment can be applied to various scenarios that require double-sided display and have transparent display function, such as building windows, car windows and shop windows, etc., without limitation. The following description takes its application to car windows as an example.

[0135] Based on the same technical concept, this application also provides an automobile, including a body, a chassis, and a controller; wherein at least one window of the body can be formed using any of the aforementioned double-sided displays provided in this application. Since the principle by which this automobile solves the problem is similar to that of the aforementioned double-sided display, the implementation of this automobile can refer to the implementation of the aforementioned double-sided display, and repeated details will not be elaborated further.

[0136] For example, this application also provides an interaction method applicable to any of the above-mentioned vehicles, see [link to relevant documentation]. Figure 11 The interaction method may include the following steps:

[0137] S101, The vehicle's controller acquires information from outside or inside the vehicle.

[0138] In practical implementation, the controller can acquire information from outside or inside the vehicle through one or more of the following: vehicle-mounted sensors, vehicle central control screen, and communication module.

[0139] For example, onboard sensors include cameras, millimeter-wave radar, lidar, or body temperature sensors. In one design, the controller can acquire image information through the camera and obtain body temperature information of passengers inside the vehicle through the body temperature sensor, etc., without limitation. The communication module can provide the acquired information to the controller via an in-vehicle network (wired or wireless) or an external network (e.g., V2X).

[0140] For example, when the double-sided display forming the car window includes a touch screen, when the touch screen is touched, the control circuit in the double-sided display receives the touch signal feedback from the touch screen and sends the touch signal to the controller, so that the controller obtains the touch information from the touch side.

[0141] S102, The controller obtains display control information based on the acquired information.

[0142] In practice, the controller can process the acquired information to generate display control information.

[0143] Alternatively, the controller can wirelessly provide the acquired information to the cloud, whereby the cloud processes the acquired information to generate display control information; then the controller wirelessly receives the display control information fed back from the cloud.

[0144] S103. The controller sends the display control information to the car window so that the window displays according to the display control information.

[0145] This allows people or devices outside the vehicle to interact with the car through the windows, while people inside the car can interact with the car through the windows, the central control screen, sensors, and other means.

[0146] Since the content displayed on both sides of the window formed by the dual-sided display can be customized and does not affect each other, the window can be used in many scenarios, such as vehicle entry and exit gates, and advertising information can be displayed externally / inside based on certain promotional needs.

[0147] The interaction method of the vehicle provided in this application is illustrated using the scenario of a vehicle entering and exiting a gate as an example.

[0148] The first scenario: vehicles entering through the gate.

[0149] like Figure 12 As shown, the interaction method may include the following steps:

[0150] S201. The vehicle-mounted camera captures a QR code image for health code registration and sends the information representing the QR code image to the controller.

[0151] S202, The controller obtains body temperature detection control information based on the received information used to characterize the QR code image, and sends the obtained body temperature detection control information to the body temperature detection sensor.

[0152] In practice, the controller can directly generate body temperature detection control information based on the received information used to characterize the QR code image, or it can obtain body temperature detection control information through cloud processing, which is not limited here.

[0153] S203. The body temperature detection sensor obtains the body temperature information of the passengers in the vehicle based on the received body temperature detection control information, and sends the obtained body temperature information of the passengers in the vehicle to the controller.

[0154] S204. The controller obtains display control information based on the received information representing the QR code image and the body temperature information of the passengers in the vehicle, and sends the obtained display control information to the vehicle window.

[0155] In practice, the controller can directly generate display control information based on the received information representing the QR code image and the body temperature information of the passengers in the vehicle, or it can obtain the display control information through cloud processing, which is not limited here.

[0156] S205. The windows display the registered health code and the body temperature of at least one passenger inside the vehicle on the outside, based on the display control information.

[0157] In this embodiment, the inside of the window may or may not be displayed, and the display inside the window is not affected by the display outside.

[0158] Furthermore, the controller can also obtain voice control information based on the received body temperature information used to characterize the passengers in the vehicle, and send the voice control information to the in-vehicle voice player, so that the in-vehicle voice player can play the body temperature information of the passengers in the vehicle based on the received voice control information.

[0159] The second scenario: a vehicle passes through the gate and exits, and it is an unmanned toll gate.

[0160] like Figure 13 As shown, the interaction method may include the following steps:

[0161] S301. The vehicle-mounted camera captures a QR code image for parking payment and sends the information representing the QR code image to the controller.

[0162] S302. The controller obtains display control information based on the received information representing the QR code image, and sends the obtained display control information to the vehicle window.

[0163] In practice, the controller can directly generate display control information based on the received information representing the QR code image, or it can obtain volume display control information through cloud processing; this is not limited here.

[0164] S303: The window displays the cost information on the inside based on the display control information.

[0165] This allows passengers to pay based on the fee information displayed inside the window. Specifically, if a touchscreen is installed inside the window, passengers can confirm the payment by touching the touchscreen.

[0166] In this embodiment, the inside of the window may or may not be displayed, and the display inside the window is not affected by the display outside.

[0167] Furthermore, in this embodiment, the controller can also send the received display control information to the mobile phone, and the mobile phone displays the fee information based on the display control information, so that the user can make payment through the mobile phone based on the fee information displayed on the mobile phone.

[0168] Furthermore, in this embodiment, the controller can also obtain voice control information based on the received information representing the QR code image, and send the obtained voice control information to the in-vehicle voice player, so that the in-vehicle voice player can play the fee information based on the received voice control information.

[0169] The third scenario: a vehicle passes through a gate and exits, and it is a manned toll gate (where payment is made via a scanner).

[0170] like Figure 14 As shown, the interaction method may include the following steps:

[0171] S401, The controller obtains the fee information, generates display control information based on the obtained fee information, and sends the obtained display control information to the window.

[0172] S402: The vehicle window displays the fee information on the inside based on the display control information.

[0173] S403. The controller obtains payment confirmation information, generates display control information based on the obtained fee information, and sends the obtained display control information to the window.

[0174] In one implementation, if a touchscreen is installed inside the vehicle window, passengers inside the vehicle can confirm payment by touching the touchscreen inside the window, and the controller can obtain payment confirmation information through the touchscreen.

[0175] In another feasible implementation, after confirming the fee information, the occupants of the vehicle can send payment confirmation information to the controller via their mobile phone or the car's central control screen.

[0176] S404: The payment QR code is displayed on the outside of the window according to the display control information.

[0177] In practice, when a touch screen is installed on the outside of the car window, the size and position of the payment QR code can also be controlled by controlling the touch screen. For example, the control circuit of the car window (double-sided display) receives the touch information fed back by the touch screen, and the control circuit controls the size or position of the payment QR code displayed on the outside of the car window according to the touch information.

[0178] Furthermore, in this embodiment, the controller can also obtain voice control information based on the acquired fee information and send the obtained voice control information to the in-vehicle voice player, so that the in-vehicle voice player can play the fee information based on the received voice control information.

[0179] In the above embodiments, for cases where only one side of the vehicle window needs to be displayed:

[0180] If the vehicle window uses the double-sided display as described in Embodiment 1, the double-sided display includes a first transparent display panel, a dimming layer, and a second transparent display panel. The first or second transparent display panel displays information according to the loaded display information. The dimming layer can be in a light-blocking state or a light-transmitting state, adjustable according to actual needs. For cases requiring transparent display, the dimming layer is in a light-transmitting state; for cases requiring non-transparent display, the dimming layer is in a light-blocking state.

[0181] If the vehicle window uses the double-sided display as described in Embodiment 2, the double-sided display includes a first liquid crystal display panel, a transparent light-emitting diode display panel, and a second liquid crystal display panel. The transparent light-emitting diode display panel displays information according to the loaded display information, and the liquid crystal display panel on the display side is adjusted to a light-transmitting state. Alternatively, the transparent display panel can be used as a backlight, and the liquid crystal display panel on the display side displays information according to the loaded display information. The liquid crystal display panel on the other side can be in a light-blocking state or a light-transmitting state, depending on actual needs. For cases requiring transparent display, the liquid crystal display panel on the other side is in a light-transmitting state; for cases requiring non-transparent display, the liquid crystal display panel on the other side is in a light-blocking state.

[0182] In the above embodiments, for situations where display is required on both sides of the vehicle window:

[0183] If the vehicle window uses the double-sided display as described in Embodiment 1, the double-sided display includes a first transparent display panel, a dimming layer, and a second transparent display panel. The first and second transparent display panels display information according to their respective loaded display information. The dimming layer can be in a light-blocking state or a light-transmitting state, which can be adjusted according to actual needs. For cases requiring transparent display, the dimming layer is in a light-transmitting state; for cases requiring non-transparent display, the dimming layer is in a light-blocking state.

[0184] If the vehicle window uses the double-sided display as described in Embodiment 2, the double-sided display includes a first liquid crystal display panel, a transparent light-emitting diode display panel, and a second liquid crystal display panel. The transparent light-emitting diode display panel provides a light source for the first and second liquid crystal display panels, which respectively display information according to their loaded display information. For cases requiring transparent display, the first pixel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel among the plurality of first pixels of the first liquid crystal display panel is in a light-transmitting state, and the second pixel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel among the plurality of second pixels of the second liquid crystal display panel is in a light-transmitting state; for cases requiring non-transparent display, the first pixel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel among the plurality of first pixels of the first liquid crystal display panel is in a light-blocking state, and / or, the second pixel corresponding to the light-transmitting area of ​​the transparent light-emitting diode display panel among the plurality of second pixels of the second liquid crystal display panel is in a light-blocking state.

[0185] When the dual-sided display provided in this application embodiment is applied to a vehicle window, the information displayed on the window can be used to interact with external personnel or equipment when the vehicle enters or exits the gate, thus meeting the needs for automated information registration, payment, and other functions required for entering and exiting the gate.

[0186] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of protection of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A double-sided display, characterized in that, include: A first transparent display panel and a second transparent display panel are arranged opposite to each other, and a dimming layer is located between the first transparent display panel and the second transparent display panel; The dimming layer is used to present a light-transmitting state or a light-blocking state according to the applied voltage; The first transparent display panel includes a plurality of first pixels, wherein at least some of the plurality of first pixels have light-transmitting areas between adjacent first pixels; The second transparent display panel includes a plurality of second pixels, wherein at least some of the plurality of second pixels have light-transmitting areas between adjacent second pixels; The light-transmitting areas in the first transparent display panel and the light-transmitting areas in the second transparent display panel overlap. The display modes of the dual-sided display include a transparent display mode. When the dual-sided display is in the transparent display mode, the dimming layer is in a light-transmitting state according to the applied voltage, and the first transparent display panel and the second transparent display panel display according to their respective applied display information.

2. The double-sided display as described in claim 1, characterized in that, The dimming layer includes a liquid crystal display panel; The liquid crystal display panel includes: a first transparent substrate and a second transparent substrate disposed opposite to each other, a liquid crystal layer located between the first transparent substrate and the second transparent substrate, a first polarizer and a second polarizer located on both sides of the liquid crystal layer, and a first transparent electrode and a second transparent electrode located between the first transparent substrate and the second transparent substrate. The polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer; The liquid crystal display panel is used to be in a light-transmitting state or a light-blocking state depending on the voltage applied to the first transparent electrode and the second transparent electrode.

3. The double-sided display as described in claim 1 or 2, characterized in that, The first transparent display panel includes a third transparent substrate and a fourth transparent substrate disposed opposite to each other, and the plurality of first pixels are located between the third transparent substrate and the fourth transparent substrate; Each of the plurality of first pixels includes at least one light-emitting diode and a pixel circuit for driving the light-emitting diode to emit light.

4. The double-sided display as described in claim 3, characterized in that, The dimming layer includes a liquid crystal display panel, wherein the first transparent substrate of the liquid crystal display panel and the third transparent substrate of the first transparent display panel are the same substrate.

5. The double-sided display as described in claim 1, characterized in that, The second transparent display panel includes a fifth transparent substrate and a sixth transparent substrate disposed opposite to each other, and the plurality of second pixels are located between the fifth transparent substrate and the sixth transparent substrate; Each of the plurality of second pixels includes a light-emitting diode and a pixel circuit for driving the light-emitting diode to emit light.

6. The double-sided display as described in claim 5, characterized in that, The dimming layer includes a liquid crystal display panel, and the second transparent substrate of the liquid crystal display panel and the fifth transparent substrate of the second transparent display panel are the same substrate.

7. The double-sided display as described in claim 1, characterized in that, The display modes of the dual-sided display also include a non-transparent display mode; When the dual-sided display is in the non-transparent display mode, the dimming layer is in a light-blocking state according to the applied voltage, and the first transparent display panel and the second transparent display panel display according to their respective applied display information.

8. The double-sided display as described in claim 1, characterized in that, It also includes a first touchscreen disposed on the light-emitting side of the first transparent display panel, and / or a second touchscreen disposed on the light-emitting side of the second transparent display panel.

9. A double-sided display, characterized in that, include: A first liquid crystal display panel and a second liquid crystal display panel are arranged opposite to each other, and a transparent light-emitting diode display panel is located between the first liquid crystal display panel and the second liquid crystal display panel; The first liquid crystal display panel includes a plurality of first pixels, and the second liquid crystal display panel includes a plurality of second pixels; The transparent light-emitting diode display panel is used to provide a light source for the first liquid crystal display panel and the second liquid crystal display panel. The transparent light-emitting diode display panel includes a plurality of third pixels. At least one of the plurality of third pixels corresponds to at least one first pixel and / or at least one second pixel. At least some of the plurality of third pixels have light-transmitting areas between adjacent third pixels. At least one of the light-transmitting areas corresponds to at least one first pixel and / or at least one second pixel. The display mode of the dual-sided display includes a dual-sided display mode, wherein the first pixel corresponding to the third pixel of the transparent light-emitting diode display panel among the plurality of first pixels of the first liquid crystal display panel is displayed according to the loaded display information, and the second pixel corresponding to the third pixel of the transparent light-emitting diode display panel among the plurality of second pixels of the second liquid crystal display panel is displayed according to the loaded display information; The dual-sided display mode includes a transparent display mode. When the dual-sided display is in the transparent display mode, the first pixel in the plurality of first pixels of the first liquid crystal display panel that corresponds to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-transmitting state, and the second pixel in the plurality of second pixels of the second liquid crystal display panel that corresponds to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-transmitting state.

10. The double-sided display as described in claim 9, characterized in that, The first liquid crystal display panel includes: a first transparent substrate and a second transparent substrate disposed opposite to each other, a first liquid crystal layer located between the first transparent substrate and the second transparent substrate, a first polarizer and a second polarizer located on both sides of the liquid crystal layer, and a first transparent electrode and a second transparent electrode located on both sides of the first liquid crystal layer. The first transparent electrode includes a plurality of first pixel electrodes, the plurality of first pixel electrodes corresponding to the plurality of first pixels, and the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer; The second liquid crystal display panel includes: a third transparent substrate and a fourth transparent substrate disposed opposite to each other, a second liquid crystal layer located between the third transparent substrate and the fourth transparent substrate, a third polarizer and a fourth polarizer located on both sides of the second liquid crystal layer, and a third transparent electrode and a fourth transparent electrode located on both sides of the second liquid crystal layer. The third transparent electrode includes a plurality of second pixel electrodes, the plurality of second pixel electrodes corresponding to the plurality of second pixels, and the polarization direction of the third polarizer is perpendicular to the polarization direction of the fourth polarizer.

11. The double-sided display as claimed in claim 10, characterized in that, The transparent light-emitting diode display panel includes a sixth transparent substrate disposed opposite to a fifth transparent substrate, and a plurality of third pixels located between the fifth transparent substrate and the sixth transparent substrate; Each of the plurality of third pixels includes at least one light-emitting diode and a pixel circuit for driving the light-emitting diode to emit light.

12. The double-sided display as claimed in claim 11, characterized in that, The second transparent substrate and the fifth transparent substrate are the same substrate; and / or The fourth transparent substrate and the sixth transparent substrate are the same substrate.

13. The double-sided display as described in claim 9, characterized in that, It also includes a first touch screen disposed on the light-emitting side of the first liquid crystal display panel, and / or a second touch screen disposed on the light-emitting side of the second liquid crystal display panel.

14. The double-sided display as described in claim 9, characterized in that, The display modes of the dual-sided display also include a single-sided display mode; When the dual-sided display is in single-sided display mode: The transparent light-emitting diode display panel displays content according to the content displayed on one side. The first pixel in the first liquid crystal display panel corresponding to the plurality of third pixels is in a light-transmitting state, or the second pixel in the second liquid crystal display panel corresponding to the plurality of third pixels is in a light-transmitting state. Alternatively, the transparent light-emitting diode display panel is used to provide a light source for the first liquid crystal display panel or the second liquid crystal display panel, and the first liquid crystal display panel or the second liquid crystal display panel displays according to the loaded display information.

15. The double-sided display as described in claim 9, characterized in that, When the dual-sided display is in the dual-sided display mode, the brightness value of at least one of the third pixels in the transparent light-emitting diode display panel is determined based on the maximum brightness value among the brightness values ​​of the corresponding at least one first pixel and / or the at least one second pixel.

16. The double-sided display as described in any one of claims 9-15, characterized in that, The dual-sided display module also includes a non-transparent display mode; When the dual-sided display is in the non-transparent display mode, the first pixel in the plurality of first pixels of the first liquid crystal display panel that corresponds to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state, and / or, the second pixel in the plurality of second pixels of the second liquid crystal display panel that corresponds to the light-transmitting area of ​​the transparent light-emitting diode display panel is in a light-blocking state.

17. A display device, characterized in that, Includes a circuit board and a double-sided display as described in any one of claims 1-16.

18. A car, characterized in that, It includes a vehicle body, a chassis, and a controller; wherein at least one window of the vehicle body is formed using a double-sided display as described in any one of claims 1-16.

19. An interaction method, characterized in that, The interaction method is applied to the vehicle as described in claim 18, and the interaction method includes: The vehicle's controller acquires information from outside or inside the vehicle; The controller obtains display control information based on the acquired information; The controller sends the display control information to the windows of the vehicle, so that the windows display according to the display control information.

20. The interaction method as described in claim 19, characterized in that, The vehicle's controller acquires information from outside or inside the vehicle, including: The controller acquires information from outside or inside the vehicle through onboard sensors.

21. The interaction method as described in claim 19 or 20, characterized in that, The controller obtains display control information based on the acquired information, including: The controller processes the acquired information and generates display control information.

22. The interaction method as described in claim 19 or 20, characterized in that, The controller obtains display control information based on the acquired information, including: The controller wirelessly provides the acquired information to the cloud so that the cloud can process the acquired information to generate display control information. The controller receives the display control information fed back from the cloud wirelessly.

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