Display panel and driving method, display device, and vehicle-mounted system and driving method

Abstract

A display panel and a driving method, a display device, and a vehicle-mounted system and a driving method. The display panel comprises: a liquid crystal display structure (001), configured to display a shared picture in a shared mode, display a left field-of-view picture and a right field-of-view picture in a dual-view mode, and display either the left field-of-view picture or the right field-of-view picture in a privacy mode; and a liquid crystal light control structure (002), stacked with the liquid crystal display structure (001), and configured to provide the shared picture to a left viewing area and a right viewing area in the shared mode, provide the left field-of-view picture to the left viewing area and provide the right field-of-view picture to the right viewing area in the dual-view mode, and provide either the left field-of-view picture to the left viewing area or provide the right field-of-view picture to the right viewing area in the privacy mode.

Description

Display panel and driving method, display device, vehicle system and driving method Technical Field

[0001] This disclosure relates to the field of vehicle display technology, and in particular to a display panel and driving method, a display device, a vehicle system and driving method. Background Technology

[0002] Thin-film transistor liquid crystal displays (TFT-LCDs) are characterized by their small size, low power consumption, high image quality, no radiation, and portability. They have experienced rapid development in recent years and have gradually replaced traditional cathode ray tube (CRT) displays, dominating the current flat panel display market. Currently, TFT-LCDs are widely used in products of various sizes, covering almost all major electronic products in today's information society, such as LCD TVs, high-definition digital TVs, computers (desktops and laptops), mobile phones, tablets, navigation systems, in-vehicle displays, projection displays, cameras, digital cameras, electronic watches, calculators, electronic instruments, meters, public displays, and virtual displays.

[0003] Summary of the Invention

[0004] The display panel and driving method, display device, vehicle system and driving method provided in this disclosure are as follows:

[0005] On one hand, embodiments of this disclosure provide a display panel, including:

[0006] A liquid crystal display structure is configured to display a shared screen in a shared mode, display a left field of view and a right field of view in a dual-view mode, and display a left field of view or a right field of view in a privacy mode.

[0007] A liquid crystal light control structure is stacked on top of the liquid crystal display structure; the liquid crystal light control structure is configured to provide the shared image to the left and right viewing areas in the shared mode, to provide the left field image to the left viewing area and the right field image to the right viewing area in the dual-view mode, and to provide the left field image to the left viewing area or the right field image to the right viewing area in the privacy mode.

[0008] In some embodiments, the liquid crystal light control structure in the display panel provided in the present disclosure includes a liquid crystal grating.

[0009] In some embodiments, in the display panel provided in the present disclosure, the liquid crystal grating includes a plurality of gratings arranged in the row direction, the opening of the grating in the row direction has a size of a, and the size of the grating in the row direction is C;

[0010] The liquid crystal display structure includes multiple sub-pixels arranged in an array, and a black matrix disposed between the sub-pixels. The black matrix has a dimension of m in the row direction, and the sub-pixels have a dimension of P in the row direction.

[0011] Where a and C satisfy the following relationships:

[0012] H is the distance between the liquid crystal layer of the liquid crystal display structure and the liquid crystal light control structure in the stacking direction, and α2 and β2 are the maximum and minimum angles between the light rays of the left field image or the right field image at the grating opening and the row direction, respectively.

[0013] In some embodiments, in the display panel provided in the present disclosure, α2 and β2 respectively satisfy the following relationships: sin(90°-α1)=n*sin(90°-α2), sin(90°-β1)=n*sin(90°-β2);

[0014] Where α1=β1+α, α is the viewing angle range of the dual-viewing area, β1 is the range of the large viewing angle crosstalk area, and n is the refractive index of the film layer between the liquid crystal display structure and the liquid crystal light control structure.

[0015] In some embodiments, in the display panel provided in the present disclosure, 362μm≤H<480μm.

[0016] In some embodiments, in the display panel provided in the present disclosure, the liquid crystal light control structure includes a first twisted nematic liquid crystal structure and a second twisted nematic liquid crystal structure stacked together; wherein...

[0017] The first twisted nematic liquid crystal structure includes a first planar electrode and a second planar electrode placed opposite each other, and a first twisted nematic liquid crystal layer located between the first planar electrode and the second planar electrode;

[0018] The second twisted nematic liquid crystal structure includes a third planar electrode and a fourth planar electrode placed opposite each other, and a second twisted nematic liquid crystal layer located between the third planar electrode and the fourth planar electrode;

[0019] The pretilt direction of the liquid crystal molecules in the first twisted nematic liquid crystal layer is opposite to that in the second twisted nematic liquid crystal layer.

[0020] In some embodiments, in the display panel provided in the present disclosure, the liquid crystal light control structure is located on the light-emitting side or the light-receiving side of the liquid crystal display structure.

[0021] In some embodiments, in the display panel provided in the present disclosure, the liquid crystal display structure includes an array substrate, and the array substrate includes a touch electrode layer.

[0022] On the other hand, embodiments of this disclosure provide a driving method for the above-mentioned display panel, including:

[0023] In the sharing mode, the liquid crystal display structure is controlled to display the shared image, and the liquid crystal light control structure is controlled to provide the shared image to the left and right viewing areas;

[0024] In dual-view mode, the liquid crystal display structure is controlled to display the left field of view and the right field of view, and the liquid crystal light control structure is controlled to provide the left field of view to the left field of view and the right field of view to the right field of view.

[0025] In privacy mode, the liquid crystal display structure is controlled to display the left or right field of view, and the liquid crystal light control structure is controlled to provide the left field of view to the left viewing area or the right field of view to the right viewing area.

[0026] In some embodiments, the driving method provided in this disclosure specifically includes controlling the liquid crystal display structure to display a left field of view and a right field of view, comprising:

[0027] The odd-numbered columns of subpixels in the liquid crystal display structure are controlled to display the left field of view, and the even-numbered columns of subpixels are controlled to display the right field of view.

[0028] In some embodiments, the driving method provided in this disclosure, which controls the liquid crystal display structure to display a left field of view or a right field of view, specifically includes:

[0029] The odd-numbered sub-pixels of the liquid crystal display structure are controlled to display the left field of view, and the even-numbered sub-pixels are controlled to display the L0 grayscale image; or, the odd-numbered sub-pixels of the liquid crystal display structure are controlled to display the L0 grayscale image, and the even-numbered sub-pixels are controlled to display the right field of view.

[0030] In some embodiments, in the driving method provided in the present disclosure, the liquid crystal light control structure includes a liquid crystal grating;

[0031] Controlling the liquid crystal light control structure to provide the left field of view image to the left viewing area, and / or to provide the right field of view image to the right viewing area, specifically includes:

[0032] A voltage is applied to the liquid crystal grating, causing the liquid crystal grating to form light-blocking strips and light-transmitting strips alternately arranged in the row direction. Light from the left field of view is emitted into the left viewing area through the light-transmitting strips, and / or light from the right field of view is emitted into the right viewing area through the light-transmitting strips.

[0033] In some embodiments, the driving method provided in this disclosure specifically includes controlling the liquid crystal display structure to display a left field of view and / or a right field of view, including:

[0034] The liquid crystal display structure is controlled to display the left field of view during odd-numbered frame display times, and / or to display the right field of view during even-numbered frame display times.

[0035] In some embodiments, in the driving method provided in the present disclosure, the liquid crystal light control structure includes a first twisted nematic liquid crystal structure and a second twisted nematic liquid crystal structure stacked together.

[0036] Controlling the liquid crystal light control structure to provide the left field of view image to the left viewing area, and / or to provide the right field of view image to the right viewing area, specifically includes:

[0037] During the display time of odd-numbered frames, a voltage is applied to the first twisted nematic liquid crystal structure, causing the light from the left field of view to be emitted into the left viewing area under the action of the first twisted nematic liquid crystal structure; and / or, during the display time of even-numbered frames, a voltage is applied to the second twisted nematic liquid crystal structure, causing the light from the right field of view to be emitted into the right viewing area under the action of the second twisted nematic liquid crystal structure.

[0038] In some embodiments, in the driving method provided in the present disclosure, controlling the liquid crystal light control structure to provide the shared image to the left and right viewing areas specifically includes:

[0039] No voltage is applied to the liquid crystal light control structure, so that the light from the shared image is emitted to the left and right viewing areas.

[0040] On the other hand, this disclosure provides a display device, including the display panel provided in this disclosure and a backlight module located on the light-incident side of the display panel.

[0041] On the other hand, embodiments of this disclosure provide an in-vehicle system including the display device described above in embodiments of this disclosure.

[0042] In some embodiments, the in-vehicle system provided in this disclosure also includes a camera module, which is configured to at least identify whether the touch direction originates from the driver's side or the passenger's side.

[0043] In some embodiments, the vehicle system provided in this disclosure further includes a control circuit, which is used to receive the touch direction identified by the camera module and the touch information provided by the display device, and to respond to touch operations according to the touch direction and the touch information.

[0044] In some embodiments, in the vehicle-mounted system provided in this disclosure, the control circuit includes a hardware platform and a processor; wherein,

[0045] The hardware platform is controlled to receive the touch direction identified by the camera module and the touch information provided by the display device, and to provide corresponding display information to the processor according to the touch direction and the touch information;

[0046] The processor is configured to control the display panel to perform shared screen display or to perform left field of view and / or right field of view display based on the display information.

[0047] In some embodiments, in the vehicle system provided in the present disclosure, the control circuit includes a main hardware platform, a secondary hardware platform, and a processor.

[0048] The processor is controlled to receive the touch direction identified by the camera module and the touch information provided by the display device, and to provide the touch information to the main hardware platform or the secondary hardware platform according to the touch direction; and to control the display panel to display a shared screen or a left field of view screen according to the feedback information of the main hardware platform, and to control the display panel to display a right field of view screen according to the feedback information of the secondary hardware platform.

[0049] The main hardware platform is configured to provide the processor with display information for the corresponding display area or the corresponding left view area based on the touch information.

[0050] The secondary hardware platform is configured to provide the processor with display information for the corresponding right view area based on the touch information.

[0051] On the other hand, this disclosure also provides a driving method for the above-mentioned vehicle system, including:

[0052] It can identify whether the touch input originates from the driver's or passenger's direction.

[0053] The system receives the touch direction identified by the camera module and the touch information provided by the display device, and responds to touch operations based on the touch direction and the touch information.

[0054] In some embodiments, the driving method provided in this disclosure, responding to a touch operation based on the touch direction and the touch information, specifically includes:

[0055] When the touch direction is simultaneously from the driver's side and the passenger's side, or when the touch direction is from the driver's side, first display information corresponding to the display area or the left viewing area is generated according to the touch information, and the display panel is controlled to display the shared screen or the left viewing screen according to the first display information;

[0056] When the touch direction is the passenger side, display information for the corresponding right view area is generated based on the touch information, and the display panel is controlled to display the right view image based on the second display information. Attached Figure Description

[0057] Figure 1 is a schematic diagram of a display panel provided in an embodiment of this disclosure;

[0058] Figure 2 is a schematic diagram of another structure of the display panel provided in an embodiment of this disclosure;

[0059] Figure 3 is a schematic diagram of another structure of the display panel provided in an embodiment of this disclosure;

[0060] Figure 4 is a schematic diagram of another structure of the display panel provided in an embodiment of this disclosure;

[0061] Figure 5 is a schematic diagram of the light emission of the liquid crystal light control structure in Figures 1 and 2 in the shared state;

[0062] Figure 6 is a schematic diagram of the light emission of the liquid crystal light control structure in Figures 1 and 2 under dual viewing / privacy modes;

[0063] Figure 7 shows the grating structure formed under pressure conditions by the liquid crystal grating provided in the embodiment of this disclosure;

[0064] Figure 8 is a schematic diagram of the light control principle of the liquid crystal grating provided in the embodiment of this disclosure;

[0065] Figure 9 is a schematic diagram of the light emission of the display panel shown in Figure 1 in the shared state;

[0066] Figure 10 is a schematic diagram of the light emission of the display panel shown in Figure 2 in the shared state;

[0067] Figure 11 is a cross-sectional view of the display panel shown in Figure 2 in the horizontal / vertical direction within the range of -90° to 90° in the shared state;

[0068] Figure 12 is a full-view brightness distribution diagram of the display panel shown in Figure 2 in the shared state;

[0069] Figure 13 is a schematic diagram of the light emission of the display panel shown in Figure 1 under dual-view mode;

[0070] Figure 14 is a schematic diagram of the light emission of the display panel shown in Figure 2 under dual-view mode;

[0071] Figure 15 is a cross-sectional view of the display panel shown in Figure 2 in the horizontal / vertical direction within the range of -90° to 90° under dual-view mode;

[0072] Figure 16 is a full-view brightness distribution diagram of the display panel shown in Figure 2 under dual-view status;

[0073] Figure 17 is a schematic diagram of the light emission of the display panel shown in Figure 1 in the privacy mode of the left viewing area;

[0074] Figure 18 is a schematic diagram of the light emission of the display panel shown in Figure 2 in the privacy mode of the left viewing area;

[0075] Figure 19 is a schematic diagram of the light emission of the display panel shown in Figure 1 in the privacy mode of the right viewing area;

[0076] Figure 20 is a schematic diagram of the light emission of the display panel shown in Figure 2 in the privacy mode of the right viewing area;

[0077] Figure 21 is a cross-sectional view of the display panel shown in Figure 2 in the horizontal / vertical direction within the range of -90° to 90° in the privacy mode of the right viewing area;

[0078] Figure 22 shows the brightness distribution of the display panel shown in Figure 2 in the privacy mode of the right viewing area;

[0079] Figure 23 is a cross-sectional view of the display panel shown in Figure 2 in the horizontal / vertical direction within the range of -90° to 90° in the left viewing area privacy mode;

[0080] Figure 24 shows the brightness distribution of the display panel shown in Figure 2 in the privacy mode of the left viewing area;

[0081] Figure 25 is a schematic diagram of the area division of the display panel provided in an embodiment of this disclosure;

[0082] Figure 26 is a schematic diagram of light control after magnification of a grating opening provided in an embodiment of this disclosure;

[0083] Figure 27 is a schematic diagram of the light emission of the liquid crystal light control structure in Figures 3 and 4 in the shared state;

[0084] Figure 28 is a schematic diagram of light emission from the liquid crystal light control structure in Figures 3 and 4 under dual-view / peeping mode.

[0085] Figure 29 is another light emission schematic diagram of the liquid crystal light control structure in Figures 3 and 4 under dual viewing / peeping mode;

[0086] Figure 30 is a brightness comparison diagram of the twisted liquid crystal display structure provided in this disclosure under different voltages and different viewing angles;

[0087] Figure 31 is a comparison of the brightness decay of the twisted liquid crystal display structure provided in this disclosure under different voltages and viewing angles;

[0088] Figure 32 is a schematic diagram of a display device provided in an embodiment of this disclosure;

[0089] Figure 33 is a schematic diagram of another structure of the display device provided in an embodiment of the present disclosure;

[0090] Figure 34 is a schematic diagram of another structure of the display device provided in an embodiment of the present disclosure;

[0091] Figure 35 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0092] Figure 36 is a schematic diagram of a vehicle-mounted system provided in an embodiment of this disclosure;

[0093] Figure 37 is a schematic diagram of another structure of the vehicle system provided in an embodiment of this disclosure;

[0094] Figure 38 is a flowchart of a driving method for an in-vehicle system provided in an embodiment of this disclosure;

[0095] Figure 39 is another flowchart of the driving method of the vehicle system provided in the embodiments of this disclosure;

[0096] Figure 40 is another flowchart of the driving method of the vehicle system provided in the embodiments of this disclosure. Detailed Implementation

[0097] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, for clarity, the thickness of layers, films, panels, regions, etc., is enlarged in the drawings. Exemplary embodiments are described in this disclosure with reference to cross-sectional views as schematic diagrams of idealized embodiments. Thus, deviations from the shape of the figures will be expected as a result of, for example, manufacturing techniques and / or tolerances. Therefore, the embodiments described in this disclosure should not be construed as limited to the specific shape of the regions shown in this disclosure, but rather include deviations in shape caused, for example, by manufacturing processes. For example, a region illustrated or described as flat may typically have rough and / or non-linear characteristics; a sharp corner illustrated may be rounded, etc. Therefore, the regions shown in the figures are schematic in nature, and their dimensions and shapes are not intended to illustrate the precise shape of the regions or reflect true proportions; their purpose is merely to illustrate the content of this disclosure. And throughout, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.

[0098] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure and the claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “inner,” “outer,” “upper,” and “lower” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0099] In the following description, when an element or layer is referred to as "on" or "connected to" another element or layer, the element or layer may be directly on or directly connected to the other element or layer, or there may be intermediate elements or intermediate layers. When an element or layer is referred to as "located on one side of" another element or layer, the element or layer may be directly on or directly connected to the other element or layer, or there may be intermediate elements or intermediate layers. However, when an element or layer is referred to as "directly on" or "directly connected to" another element or layer, no intermediate elements or intermediate layers are present. The term "and / or" includes any and all combinations of one or more of the related listed items.

[0100] In reviews of related in-vehicle projects, privacy protection is typically achieved by adding a privacy film to the backlight module (BLU). Therefore, privacy mode and shared mode cannot be used simultaneously on the same screen, creating a contradiction. Dual-view displays with different visuals on the same screen for the driver and passenger are extremely rare.

[0101] To address the aforementioned technical problems in related technologies, this disclosure provides a display panel, as shown in Figures 1 to 4, comprising:

[0102] The liquid crystal display structure 001 is configured to display a shared screen in shared mode, display a left field of view and a right field of view in dual-view mode, and display a left field of view or a right field of view in anti-peeping mode; optionally, the left field of view is for the driver's seat to view and the right field of view is for the passenger's seat to view.

[0103] A liquid crystal light control structure 002 is stacked on top of a liquid crystal display structure 001. Optionally, as shown in Figures 1 and 3, the liquid crystal light control structure 002 can be located on the light-emitting side of the liquid crystal display structure 001; or, as shown in Figures 2 and 4, the liquid crystal light control structure 002 is located on the light-incident side of the liquid crystal display structure 001. In this embodiment of the present disclosure, the liquid crystal light control structure 002 is configured to provide a shared image to the left and right viewing areas in a shared mode, to provide a left field of view image to the left viewing area and a right field of view image to the right viewing area in a dual-view mode, and to provide a left field of view image to the left viewing area or a right field of view image to the right viewing area in a privacy mode.

[0104] In the display panel provided in the embodiments of this disclosure, by adding a liquid crystal light control structure 002 stacked with the liquid crystal display structure 001, the light emission direction is controlled. In conjunction with the display image of the liquid crystal display structure 001, the switching between three display states—shared state, privacy state, and dual-view state—is realized.

[0105] In some embodiments, the liquid crystal display structure 001 of this disclosure can be a twisted nematic (TN) type liquid crystal display, an advanced dimension switch (ADS) type liquid crystal display, an in-plane switch (IPS) type liquid crystal display, a vertical alignment (VA) type liquid crystal display, etc. Optionally, as shown in Figures 1 to 4, the liquid crystal display structure 001 includes an array substrate 101 and a counter substrate 102 (also referred to as a color filter substrate CF) placed opposite each other, a sealant 103, a circuit board (e.g., a flexible circuit board FPC, a driver chip IC), and sub-pixels (e.g., odd-row sub-pixels L, even-row sub-pixels R, etc.). When the liquid crystal light control structure 002 is located on the light-incident side of the liquid crystal display structure 001, a touch electrode layer TE can be integrated on the array substrate 101, so that the display panel also has touch functionality. The touch electrode layer TE can be a self-capacitive touch electrode or a mutual capacitive touch electrode, which is not limited in this disclosure.

[0106] In some embodiments, as shown in Figures 5 to 8, the liquid crystal light control structure 002 includes a liquid crystal grating 002'. Optionally, as shown in Figures 5 and 6, the liquid crystal grating 002' includes: a first substrate 201 and a second substrate 202 disposed opposite to each other, a liquid crystal layer 203 located between the first substrate 201 and the second substrate 202, a first transparent electrode 204 located on the side of the first substrate 201 near the liquid crystal layer 203, a second transparent electrode 205 located on the side of the second substrate 202 near the liquid crystal layer 203, a first polarizer 206 located on the side of the first substrate 201 away from the first transparent electrode 204, and a second polarizer 207 located on the side of the second substrate 202 away from the second transparent electrode 205, wherein the transmission axis of the first polarizer 206 and the transmission axis of the second polarizer 207 are perpendicular to each other.

[0107] As can be seen from Figures 1, 5, and 6, the second polarizer 207 can be reused as a polarizer on the side facing the substrate 102 (i.e., the light-emitting side of the liquid crystal display structure 001), and a third polarizer 104 is disposed on the side facing the array substrate 101 (equivalent to the light-incident side of the liquid crystal display structure 001). The transmission axis of the third polarizer 104 is perpendicular to the transmission axis of the second polarizer 207. As can be seen from Figures 2, 5, and 6, the first polarizer 206 can be reused as a polarizer on the side facing the array substrate 101, and a fourth polarizer 105 is disposed on the side facing the substrate 102. The transmission axis of the fourth polarizer 105 is perpendicular to the transmission axis of the first polarizer 206.

[0108] In some embodiments, one of the first transparent electrode 204 and the second transparent electrode 205 is a planar electrode and the other is a plurality of strip electrodes, and the plurality of strip electrodes can be arranged in parallel at equal intervals. For example, Figures 5 and 6 illustrate the first transparent electrode 204 as a planar electrode and the second transparent electrode 205 as a plurality of parallel strip electrodes arranged at equal intervals.

[0109] In some embodiments, the liquid crystal layer 203 may include twisted nematic liquid crystal molecules, and the liquid crystal grating 002' may be a liquid crystal grating in a normal white mode. Its light transmission and blocking principle is shown in Figure 8. When no voltage is applied to the first transparent electrode 204 and the second transparent electrode 205, the twisted nematic liquid crystal molecules twist by 90°. The transmission axes of the first polarizer 206 and the second polarizer 207 are perpendicular to each other. When natural light enters the first polarizer 206, it rotates 90° along the twisting direction of the twisted nematic liquid crystal molecules and exits parallel to the transmission axis of the second polarizer 207, resulting in a bright state for the liquid crystal light 002'. When voltage is applied to the first transparent electrode 204 and the second transparent electrode 205, the twisted nematic liquid crystal molecules align along the electric field direction. The light passing through the first polarizer 206 maintains its original state and reaches the second polarizer 207. Since the polarization plane of the light is perpendicular to the direction of the second polarizer 207, it cannot pass through the second polarizer 207, thus appearing dark.

[0110] Based on this, in this disclosure, when no pressure is applied, as shown in Figures 5, 9, and 10, the liquid crystal grating 002' is in a bright state, allowing light to pass through completely, and the liquid crystal display structure 001 can display normally; this is the shared state display. After simulation using optical simulation software (lighttool), the brightness distribution diagrams obtained are shown in Figures 11 and 12. Figure 11 is a cross-sectional view in the horizontal / vertical (H / V) direction from -90° to 90° (H direction is curve l1, V direction is curve l2), and Figure 12 is a brightness distribution diagram across the entire viewing angle, with the horizontal axis representing the viewing angle and the vertical axis representing the light intensity. As can be seen from Figures 11 and 12, the brightness exhibits a normal distribution within the range of -90° to 90°, with the highest brightness at the normal viewing angle, similar to conventional display modules.

[0111] When voltage is applied to the strip electrodes of the first transparent electrode 204 and the second transparent electrode 205 at intervals (i.e., only one of the odd-numbered and even-numbered strip electrodes is subjected to voltage), as shown in Figures 8, 13, and 14, the bright and dark states alternate in the liquid crystal grating 002'. Light can pass through in the bright states, while light cannot pass through in the dark states. Combined with the left and right field-of-view images provided by the liquid crystal display structure 001, a dual-view state can be achieved by simultaneously displaying the left and right field-of-view images. The brightness distribution diagrams simulated using the lighttool optical simulation software are shown in Figures 15 and 16. Figure 15 is a cross-sectional view in the H / V direction from -90° to 90° (the H direction is curve l1, and the V direction is curve l2), and Figure 16 is a brightness distribution diagram with the horizontal axis representing the viewing angle and the vertical axis representing the light intensity. It can be seen that the brightness is highest at a horizontal viewing angle of ±20°, and the left and right visible areas are -40° to 0° and 0° to 40°, respectively.

[0112] When voltage is applied to the strip electrodes of the first transparent electrode 204 and the second transparent electrode 205 at intervals (i.e., only one of the odd-numbered and even-numbered strip electrodes is subjected to voltage), as shown in Figures 8 and 17 to 20, the bright and dark states in the liquid crystal grating 002' are alternately distributed. Light can pass through in the bright states, while light cannot pass through in the dark states. Combined with the left field of view provided by the liquid crystal display structure 001, the effect of displaying the left field of view in the left viewing area and preventing privacy in the right viewing area can be achieved; conversely, the effect of displaying the right field of view in the right viewing area and preventing privacy in the left viewing area can be achieved. This achieves the privacy protection state. After simulation using the lighttool optical simulation software, the brightness distribution diagrams are shown in Figures 21 to 24. Figures 21 and 22 reflect the privacy protection effect in the right viewing area, while Figures 23 and 24 reflect the privacy protection effect in the left viewing area. Figures 21 and 23 are cross-sectional views along the H / V direction from -90° to 90° (H direction is curve l1, V direction is curve l2). Figures 22 and 24 are brightness distribution diagrams across the entire viewing angle, with the horizontal axis representing the viewing angle and the vertical axis representing light intensity. As shown in Figures 21 and 22, when privacy is protected in the right viewing area, the left viewing area ranges from -40° to 0°, with the highest brightness at a horizontal viewing angle of -20°. As shown in Figures 23 and 24, when privacy is protected in the left viewing area, the right viewing area ranges from 0° to 40°20°, with the highest brightness at a horizontal viewing angle.

[0113] As shown in Figure 25, α represents the angular range of the dual-viewable area (i.e., the left and right view areas), β represents the angular range of the crosstalk area between the left and right view areas, and β1 represents the range of the large-angle crosstalk area outside the left and right view areas. α and β can be set according to customer requirements. α1 = α + β1. Furthermore, this disclosure uses a magnified view of the grating opening in Figure 26 to analyze the relationship between the various parameters in the figure. Here, P represents the size of the sub-pixel in the horizontal direction X, m represents the size of the black matrix BM between sub-pixels in the horizontal direction X, a represents the size of the grating opening in the horizontal direction X (i.e., the distance between two adjacent dark stripes in the horizontal direction X, equivalent to the sum of the sizes of a strip electrode and its two side gaps in the horizontal direction X), C represents the size of the grating in the horizontal direction X (i.e., the sum of the sizes of a dark strip and an opening in the horizontal direction X, equivalent to the sum of the sizes of two strip electrodes and two gaps in the horizontal direction), α2 and β2 are the maximum and minimum angles between the light rays from the left or right field of view at the grating opening and the horizontal direction X, respectively, and H is the distance between the liquid crystal layer of liquid crystal display structure 001 and the liquid crystal layer of liquid crystal light control structure 002 in the stacking direction Z. m and P are determined by actual factory capabilities and design, and can be customized; therefore, they are known quantities.

[0114] From the refractive index formula, we can obtain:

[0115] ①sin(90°-α1)=n*sin(90°-α2);

[0116] ②sin(90°-β1)=n*sin(90°-β2);

[0117] n is the refractive index of the film layer between the liquid crystal display structure 001 and the liquid crystal light control structure 002. The value of n can be obtained according to the actual material used. Substituting the values ​​of α1, β1, and n into formulas ① and ② will yield the values ​​of α2 and β2.

[0118] From the trigonometric function relations, we can obtain:

[0119] ③

[0120] ④

[0121] Based on formulas ③ and ④, we can deduce that the corresponding a and C satisfy the following relationships:

[0122] ⑤

[0123] ⑥C = 2m + 2P.

[0124] As shown in formula ④, H is directly proportional to P, and the smaller P is, the higher the resolution. Therefore, to improve the resolution, H should be reduced as much as possible. Considering that in order to ensure the manufacturing yield and efficiency of other functional layers besides the substrate in the liquid crystal display structure 001 and the liquid crystal light control structure 002, and that the thickness of other functional layers is relatively small compared to the thickness of the substrate, it can be ignored. Therefore, the size of the distance H between the liquid crystal layer of the liquid crystal display structure 001 and the liquid crystal layer of the liquid crystal light control structure 002 in the stacking direction Z can be approximately equivalent to the sum of the thicknesses of the two substrate layers (e.g., the substrate of the array substrate 101 and the first substrate 201, or the substrate of the opposing substrate 102 and the second substrate 202), the adhesive layer 003, and a polarizer (e.g., the first polarizer 206 or the second polarizer 207). In the relevant automotive module, the thickness of the substrate (e.g., a glass substrate) is 300 μm to 700 μm, the thickness of the adhesive layer 003 is 100 μm to 500 μm, and the thickness of the polarizer is 80 μm to 220 μm. Therefore, the sum of the thicknesses of the two substrate layers, the adhesive layer 003, and the polarizer is 480 μm to 1420 μm. In this disclosure, the substrate can be a commercially available 130 μm thinned glass substrate, the adhesive layer 003 uses the thinnest 25 μm OCA adhesive, and the polarizer uses a 77 μm compensated polarizer. Thus, H can be reduced to 362 μm. Therefore, H in this disclosure can be greater than or equal to 362 μm and less than 480 μm. It should be understood that with the advancement of technology, the substrate, polarizer, and adhesive layer may be made of materials with even smaller thicknesses. Therefore, in some embodiments, H in this disclosure may be less than 362 μm.

[0125] In some embodiments, in the display panel provided in the present disclosure, as shown in FIG3 and FIG4, the liquid crystal light control structure 002 includes a first twisted nematic liquid crystal structure 208 and a second twisted nematic liquid crystal structure 209 stacked together, a fifth polarizer 210 located between the first twisted nematic liquid crystal structure 208 and the second twisted nematic liquid crystal structure 209, a sixth polarizer 211 located on the side of the first twisted nematic liquid crystal structure 208 away from the second twisted nematic liquid crystal structure 209, and a seventh polarizer 212 located on the side of the second twisted nematic liquid crystal structure 209 away from the first twisted nematic liquid crystal structure 208; wherein,

[0126] The sixth polarizer 211 can be reused with the fourth polarizer 105 on the side where the opposing substrate 102 is located, and the seventh polarizer 212 can be reused with the third polarizer 104 on the side where the array substrate 101 is located.

[0127] The first twisted nematic liquid crystal structure 208 includes a first planar electrode 801 and a second planar electrode 802 disposed opposite to each other, and a first twisted nematic liquid crystal layer 803 located between the first planar electrode 801 and the second planar electrode 802.

[0128] The second twisted nematic liquid crystal structure 209 includes a third planar electrode 901 and a fourth planar electrode 902 disposed opposite to each other, and a second twisted nematic liquid crystal layer 903 located between the third planar electrode 901 and the fourth planar electrode 902.

[0129] The pretilt direction of the liquid crystal molecules in the first twisted nematic liquid crystal layer 803 is opposite to that in the second twisted nematic liquid crystal layer 903.

[0130] In some embodiments, as shown in FIG27, when neither the first twisted nematic liquid crystal structure 208 nor the second twisted nematic liquid crystal structure 209 is pressurized, a completely white screen is displayed, achieving a shared state. As shown in FIG28, when the first twisted nematic liquid crystal structure 208 is pressurized, the liquid crystal twists, causing the light path to deflect to the left, and the left viewing area is illuminated. This, combined with the liquid crystal display structure 001 providing the left field of view in odd-numbered frames, results in the left viewing area displaying the left field of view. Similarly, as shown in FIG29, when the second twisted nematic liquid crystal structure 209 is pressurized, the liquid crystal twists, causing the light path to deflect to the right, and the right viewing area is illuminated. This, combined with the liquid crystal display structure 001 providing the right field of view in even-numbered frames, results in the right viewing area displaying the right field of view. This achieves a dual-view state. When only the left viewing area is illuminated, and combined with the left field of view provided by the liquid crystal display structure 001 in odd-numbered frames, the effect of displaying the left field of view in the left viewing area and preventing peeping in the right viewing area can be achieved. When only the right viewing area is lit, and in conjunction with the right field of view image given by the LCD display structure 001 in even-numbered frames, the effect of displaying the right field of view image in the right viewing area and preventing peeping in the left viewing area can be achieved.

[0131] TN LCD screens exhibit a slight deviation in maximum brightness viewing angle during use, which is a major drawback in conventional group applications. This disclosure, however, utilizes this characteristic of TN screens to achieve left and right field-of-view light control. Figures 30 and 31 show the measured viewing angle of the TN screen and a brightness comparison of the TN screen under different voltages. The test results show that the brightness is optimal at 1.9V, with a best viewing angle of 20°, at which point crosstalk in the other field of view is also minimized.

[0132] Based on the same inventive concept, this disclosure provides a driving method for the above-mentioned display panel. Since the principle of this driving method in solving the problem is similar to that of the above-mentioned display panel in solving the problem, the implementation of the driving method provided in this disclosure can refer to the above-mentioned display panel embodiment provided in this disclosure, and repeated details will not be described again.

[0133] In some embodiments, the driving method for the display panel provided in this disclosure may include the following steps:

[0134] In shared mode, the liquid crystal display structure is controlled to display the shared image, and the liquid crystal light control structure is controlled to provide the shared image to the left and right viewing areas;

[0135] In dual-view mode, the liquid crystal display structure is controlled to display the left and right field images, and the liquid crystal light control structure is controlled to provide the left field image to the left viewing area and the right field image to the right viewing area.

[0136] In privacy mode, the LCD display structure is controlled to display the left or right field of view, and the LCD light control structure is controlled to provide the left field of view to the left viewing area or the right field of view to the right viewing area.

[0137] In some embodiments, in the driving method provided in the present disclosure, controlling the liquid crystal display structure to display the left field of view and / or the right field of view can specifically include: controlling the odd-numbered columns of sub-pixels of the liquid crystal display structure to display the left field of view and / or the even-numbered columns of sub-pixels to display the right field of view; and in the privacy mode of the right viewing area, the even-numbered columns of sub-pixels can be controlled to display the L0 grayscale image; in the privacy mode of the left viewing area, the odd-numbered columns of sub-pixels can be controlled to display the L0 grayscale image. Correspondingly, the liquid crystal light control structure can include a liquid crystal grating; controlling the liquid crystal light control structure to provide the left field of view to the left viewing area and / or to provide the right field of view to the right viewing area can specifically include: applying a voltage to the liquid crystal grating, causing the liquid crystal grating to form light-blocking strips and light-transmitting strips alternately arranged in the row direction, so that the light from the left field of view is emitted to the left viewing area through the light-transmitting strips, and / or the light from the right field of view is emitted to the right viewing area through the light-transmitting strips.

[0138] In some embodiments, the driving method provided in this disclosure, controlling the liquid crystal display structure to display the left field of view and / or the right field of view, can also be achieved through the following steps: controlling the liquid crystal display structure to display the left field of view during odd-numbered frame display times, and / or, displaying the right field of view during even-numbered frame display times. Accordingly, the liquid crystal light control structure includes a first twisted nematic liquid crystal structure and a second twisted nematic liquid crystal structure stacked together; controlling the liquid crystal light control structure to provide the left field of view to the left viewing area, and / or, to provide the right field of view to the right viewing area, specifically includes: applying a voltage to the first twisted nematic liquid crystal structure during odd-numbered frame display times, causing light from the left field of view to exit into the left viewing area under the action of the first twisted nematic liquid crystal structure; and / or, applying a voltage to the second twisted nematic liquid crystal structure during even-numbered frame display times, causing light from the right field of view to exit into the right viewing area under the action of the second twisted nematic liquid crystal structure.

[0139] In some embodiments, the driving method described above in the present disclosure provides a shared image to the left and right viewing areas by controlling the liquid crystal light control structure. Specifically, this may include: not applying voltage to the liquid crystal light control structure, so that the light from the shared image is emitted to the left and right viewing areas.

[0140] Based on the same inventive concept, this disclosure provides a display device, as shown in Figures 32 to 35, including the display panel PNL provided in this disclosure and a backlight module BLU located on the light-incident side of the display panel PNL. The backlight module BLU can be a direct-lit backlight module or an edge-lit backlight module. Since the principle by which this display device solves the problem is similar to that of the display panel described above, the implementation of this display device can refer to the implementation of the display panel provided in this disclosure, and repeated details will not be described again.

[0141] Based on the same inventive concept, this disclosure provides an in-vehicle system, as shown in Figures 36 and 37, including the display device DD provided in this disclosure. Since the principle by which this in-vehicle system solves the problem is similar to that of the display panel described above, the implementation of the in-vehicle system provided in this disclosure can refer to the implementation of the display panel provided in this disclosure, and repeated details will not be described again.

[0142] In some embodiments, as shown in Figures 36 and 37, the in-vehicle system provided in this disclosure may further include a camera module (CCM), which is configured to at least identify whether the touch direction originates from the driver's side or the passenger's side. In some embodiments, the camera module (CCM) may also be used to record images and sounds during vehicle operation, etc., which is not limited in this disclosure. Optionally, the camera module (CCM) is externally mounted on the display device (DD), or the camera module (CCM) is internally mounted on the display device (DD).

[0143] In some embodiments, as shown in Figures 36 and 37, the vehicle system provided in this disclosure may further include a control circuit CC, which is configured to receive the touch direction identified by the camera module CCM and the touch information provided by the display device DD, and respond to touch operations according to the touch direction and the touch information.

[0144] In some embodiments, a hardware platform SoC can be used to respond to touch inputs on both sides of the driver's seat and the passenger seat, as shown in Figure 36. The control circuit CC may include a hardware platform SoC and a processor FPGA. The hardware platform SoC is configured to receive the touch direction identified by the camera module CCM and the touch information provided by the display device DD, and provide corresponding display information to the processor according to the touch direction and the touch information. The processor FPGA is configured to control the display panel PNL to perform shared screen display or to perform left field of view and / or right field of view display according to the display information.

[0145] Specifically: As shown in Figure 38, when the display panel PNL is in shared mode, there is only one shared screen, and the hardware platform SoC can directly respond to touch operations. When the display panel PNL is in dual-view mode or switchable privacy mode, there are two screens, a left field of view and a right field of view, or only a left field of view or a right field of view. In this case, the camera module CCM needs to identify the touch direction, determining whether the touch direction comes from the driver's seat or the passenger's seat. The hardware platform SoC responds according to the identified touch direction in the corresponding user interface design (i.e., UI). If there is simultaneous touch from both sides, the processor FPGA internally sets a priority algorithm, prioritizing touches from the driver's seat to ensure the driver's needs and safety.

[0146] In some embodiments, two hardware platform SoCs can be used to respond to single-sided touch input from the driver's seat and single-sided touch input from the passenger's seat, respectively, as shown in Figure 37. The control circuit CC includes a main hardware platform SoC1, a secondary hardware platform SoC2, and a processor FPGA. The processor FPGA is configured to receive the touch direction identified by the camera module CCM and the touch information provided by the display device DD, and to provide the touch information to either the main hardware platform SoC1 or the secondary hardware platform SoC2 according to the touch direction. For example, when the touch direction is in the driver's seat direction, the processor FPGA provides the touch information to the main hardware platform SoC1, and the main hardware platform SoC2 provides the touch information to the passenger's seat direction. Based on the touch information, SoC1 provides the corresponding display area or the corresponding left view area to the processor FPGA. Correspondingly, the processor FPGA can also control the display panel PNL to display the shared screen or the left view screen based on the feedback information from the main hardware platform SoC1. For example, when the touch direction is in the passenger direction, the processor FPGA provides the touch information to the secondary hardware platform SoC2. The secondary hardware platform SoC2 is configured to provide the corresponding right view area display information to the processor FPGA based on the touch information. In this case, the processor FPGA can also control the display panel PNL to display the right view screen based on the feedback information from the secondary hardware platform SoC2.

[0147] Specifically: When the in-vehicle system has a main hardware platform SoC1 and a secondary hardware platform SoC2, as shown in Figure 39, when the display device DD is operating in shared mode, there is only one shared screen, and the main hardware platform SoC1 outputs the screen. The processor FPGA transmits the touch information to the main hardware platform SoC1, which then responds to the touch operation. When the display device DD is operating in dual-view mode or switchable privacy mode, there are two screens: a left field of view and a right field of view, or a single screen with either a left or right field of view. In this case, the camera module CCM needs to identify the touch direction, determining whether the touch originates from the driver's seat or the passenger's seat. The processor FPGA transmits the touch information to the corresponding main hardware platform SoC1 or secondary hardware platform SoC2 based on the direction identified by the camera module CCM. The corresponding main hardware platform SoC1 or secondary hardware platform SoC2 then responds to the touch operation. If there is simultaneous touch from both sides, the processor FPGA internally sets a priority algorithm, prioritizing touches from the driver's seat to ensure the driver's needs and safety.

[0148] Based on the same inventive concept, this disclosure provides a driving method for the above-mentioned vehicle system. Since the principle of this driving method in solving the problem is similar to that of the above-mentioned vehicle system in solving the problem, the implementation of the driving method provided in this disclosure can refer to the implementation of the above-mentioned vehicle system provided in this disclosure, and repeated details will not be described again.

[0149] In some embodiments, a driving method for an in-vehicle system provided by this disclosure, as shown in FIG40, includes the following steps:

[0150] S4001. Identify whether the touch direction originates from the driver's side or the passenger's side.

[0151] S4002 receives touch information and the identified touch direction, and responds to touch operations based on the touch direction and touch information.

[0152] In some embodiments, the driving method described above in the present disclosure, responding to touch operations based on touch direction and touch information, may specifically include:

[0153] When the touch direction comes from both the driver's side and the passenger's side, or when the touch direction is the driver's side, the first display information corresponding to the display area or the left viewing area is generated according to the touch information, and the display panel is controlled to display the shared screen or the left viewing screen according to the first display information.

[0154] When the touch direction is in the direction of the passenger seat, the corresponding display information for the right view area is generated based on the touch information, and the display panel is controlled to display the right view image based on the second display information.

[0155] As can be seen from the above, this disclosure identifies whether the touch direction originates from the driver's or passenger's direction, using this as a switch to enable left / right image touch control and then displaying the corresponding screen, thus achieving dual-touch functionality. If simultaneous left and right touches occur, an algorithm can be set to prioritize touches from the driver's direction to ensure the driver's needs and safety.

[0156] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0157] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this disclosure without departing from the spirit and scope of the embodiments of this disclosure. Therefore, if these modifications and variations to the embodiments of this disclosure fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include these modifications and variations.

Claims

1. A display panel, wherein, include: A liquid crystal display structure is configured to display a shared screen in a shared mode, display a left field of view and a right field of view in a dual-view mode, and display a left field of view or a right field of view in a privacy mode. A liquid crystal light control structure is stacked on top of the liquid crystal display structure; the liquid crystal light control structure is configured to provide the shared image to the left and right viewing areas in the shared mode, to provide the left field image to the left viewing area and the right field image to the right viewing area in the dual-view mode, and to provide the left field image to the left viewing area or the right field image to the right viewing area in the privacy mode.

2. The display panel as claimed in claim 1, wherein, The liquid crystal light control structure includes a liquid crystal grating.

3. The display panel as described in claim 2, wherein, The liquid crystal grating includes a plurality of gratings arranged in the row direction, the opening of the grating in the row direction has a size of a, and the size of the grating in the row direction is C; The liquid crystal display structure includes multiple sub-pixels arranged in an array, and a black matrix disposed between the sub-pixels. The black matrix has a dimension of m in the row direction, and the sub-pixels have a dimension of P in the row direction. Where a and C satisfy the following relationships: H is the distance between the liquid crystal layer of the liquid crystal display structure and the liquid crystal light control structure in the stacking direction, and α2 and β2 are the maximum and minimum angles between the light rays of the left or right field of view at the grating opening and the row direction, respectively.

4. The display panel as claimed in claim 3, wherein, α2 and β2 satisfy the following relationships: sin(90°-α1)=n*sin(90°-α2), sin(90°-β1)=n*sin(90°-β2); Where α1=β1+α, α is the viewing angle range of the dual-viewing area, β1 is the range of the large viewing angle crosstalk area, and n is the refractive index of the film layer between the liquid crystal display structure and the liquid crystal light control structure.

5. The display panel as described in claim 3 or 4, wherein, 362μm≤H<480μm.

6. The display panel as claimed in claim 1, wherein, The liquid crystal light control structure includes a first twisted nematic liquid crystal structure and a second twisted nematic liquid crystal structure stacked together; wherein... The first twisted nematic liquid crystal structure includes a first planar electrode and a second planar electrode placed opposite each other, and a first twisted nematic liquid crystal layer located between the first planar electrode and the second planar electrode; The second twisted nematic liquid crystal structure includes a third planar electrode and a fourth planar electrode placed opposite each other, and a second twisted nematic liquid crystal layer located between the third planar electrode and the fourth planar electrode; The pretilt direction of the liquid crystal molecules in the first twisted nematic liquid crystal layer is opposite to that in the second twisted nematic liquid crystal layer.

7. The display panel according to any one of claims 1 to 6, wherein, The liquid crystal light control structure is located on the light-emitting side or the light-receiving side of the liquid crystal display structure.

8. The display panel as claimed in claim 7, wherein, The liquid crystal display structure includes an array substrate, and the array substrate includes a touch electrode layer.

9. A driving method for a display panel as described in any one of claims 1 to 8, wherein, include: In the sharing mode, the liquid crystal display structure is controlled to display the shared image, and the liquid crystal light control structure is controlled to provide the shared image to the left and right viewing areas; In dual-view mode, the liquid crystal display structure is controlled to display the left field of view and the right field of view, and the liquid crystal light control structure is controlled to provide the left field of view to the left field of view and the right field of view to the right field of view. In privacy mode, the liquid crystal display structure is controlled to display the left or right field of view, and the liquid crystal light control structure is controlled to provide the left field of view to the left viewing area or the right field of view to the right viewing area.

10. The driving method as described in claim 9, wherein, Controlling the liquid crystal display structure to display the left and right field-of-view images specifically includes: The odd-numbered columns of sub-pixels in the liquid crystal display structure are controlled to display the left field of view, while the even-numbered columns of sub-pixels... Display the right field of view.

11. The driving method as described in claim 9, wherein, Controlling the liquid crystal display structure to display the left or right field of view specifically includes: The odd-numbered sub-pixels of the liquid crystal display structure are controlled to display the left field of view, and the even-numbered sub-pixels are controlled to display the L0 grayscale image; or, the odd-numbered sub-pixels of the liquid crystal display structure are controlled to display the L0 grayscale image, and the even-numbered sub-pixels are controlled to display the right field of view.

12. The driving method as described in claim 10 or 11, wherein, The liquid crystal light control structure includes a liquid crystal grating; Controlling the liquid crystal light control structure to provide the left field of view image to the left viewing area, and / or to provide the right field of view image to the right viewing area, specifically includes: A voltage is applied to the liquid crystal grating, causing the liquid crystal grating to form light-blocking strips and light-transmitting strips alternately arranged in the row direction. Light from the left field of view is emitted into the left viewing area through the light-transmitting strips, and / or light from the right field of view is emitted into the right viewing area through the light-transmitting strips.

13. The driving method as described in claim 9, wherein, Controlling the liquid crystal display structure to display the left field of view and / or the right field of view specifically includes: The liquid crystal display structure is controlled to display the left field of view during odd-numbered frame display times, and / or to display the right field of view during even-numbered frame display times.

14. The driving method as described in claim 13, wherein, The liquid crystal light control structure includes a first twisted nematic liquid crystal structure and a second twisted nematic liquid crystal structure stacked together; Controlling the liquid crystal light control structure to provide the left field of view image to the left viewing area, and / or to provide the right field of view image to the right viewing area, specifically includes: During the display time of odd-numbered frames, a voltage is applied to the first twisted nematic liquid crystal structure, causing the light from the left field of view to be emitted into the left viewing area under the action of the first twisted nematic liquid crystal structure; and / or, during the display time of even-numbered frames, a voltage is applied to the second twisted nematic liquid crystal structure, causing the light from the right field of view to be emitted into the right viewing area under the action of the second twisted nematic liquid crystal structure.

15. The driving method according to any one of claims 9 to 14, wherein, Controlling the liquid crystal light-controlling structure to provide the shared image to the left and right viewing areas specifically includes: No voltage is applied to the liquid crystal light control structure, so that the light from the shared image is emitted to the left and right viewing areas.

16. A display device, wherein, It includes a display panel as described in any one of claims 1 to 8, and a backlight module located on the light-incident side of the display panel.

17. A vehicle-mounted system, wherein, Includes the display device as described in claim 16.

18. The vehicle-mounted system of claim 17, wherein, It also includes a camera module configured to at least identify whether the touch direction originates from the driver's or passenger's direction.

19. The vehicle-mounted system as claimed in claim 18, wherein, It also includes a control circuit, which is used to receive the touch direction identified by the camera module and the touch information provided by the display device, and respond to the touch operation according to the touch direction and the touch information.

20. The vehicle-mounted system as claimed in claim 19, wherein, The control circuit includes a hardware platform and a processor; wherein... The hardware platform is controlled to receive the touch direction identified by the camera module and the touch information provided by the display device, and to provide corresponding display information to the processor according to the touch direction and the touch information; The processor is configured to control the display panel to perform shared screen display or to perform left field of view and / or right field of view display based on the display information.

21. The vehicle-mounted system as claimed in claim 19, wherein, The control circuit includes a main hardware platform, a secondary hardware platform, and a processor; The processor is controlled to receive the touch direction identified by the camera module and the touch information provided by the display device, and to provide the touch information to the main hardware platform or the secondary hardware platform according to the touch direction; and to control the display panel to display a shared screen or a left field of view screen according to the feedback information of the main hardware platform, and to control the display panel to display a right field of view screen according to the feedback information of the secondary hardware platform. The main hardware platform is configured to provide the processor with display information for the corresponding display area or the corresponding left view area based on the touch information. The secondary hardware platform is configured to provide the processor with display information for the corresponding right view area based on the touch information.

22. A driving method for an in-vehicle system as described in any one of claims 17 to 21, wherein, include: It can identify whether the touch input originates from the driver's or passenger's direction. The system receives the touch direction identified by the camera module and the touch information provided by the display device, and responds to touch operations based on the touch direction and the touch information.

23. The driving method as described in claim 22, wherein, Responding to touch operations based on the touch direction and the touch information specifically includes: When the touch direction is simultaneously from the driver's side and the passenger's side, or when the touch direction is from the driver's side, first display information corresponding to the display area or the left viewing area is generated according to the touch information, and the display panel is controlled to display the shared screen or the left viewing screen according to the first display information; When the touch direction is the passenger side, display information for the corresponding right view area is generated based on the touch information, and the display panel is controlled to display the right view image based on the second display information.

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