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-mounted system and driving method Technical Field

[0001] The present disclosure relates to the field of vehicle-mounted display technology, and in particular to a display panel and driving method, a display device, a vehicle-mounted system and driving method. Background Art

[0002] Thin Film Transistor Liquid Crystal Displays (TFT-LCDs) feature compact size, low power consumption, high image quality, zero radiation, and portability. They have experienced rapid development in recent years, gradually replacing traditional cathode ray tube (CRT) displays and dominating the current flat-panel display market. Currently, TFT-LCDs are widely used in a variety of large, medium, and small-sized products, encompassing nearly every major electronic product in today's information society, including LCD TVs, high-definition digital TVs, computers (desktop and laptop), mobile phones, tablets, navigation systems, in-car displays, projection displays, camcorders, 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-mounted system and driving method provided by the embodiments of the present disclosure are specifically described as follows:

[0005] In one aspect, an embodiment of the present disclosure provides a display panel, comprising:

[0006] a liquid crystal display structure configured to display a shared image in a sharing mode, a left-viewing field image and a right-viewing field image in a dual-viewing mode, and a left-viewing field image or a right-viewing field image in an anti-peeping mode;

[0007] A liquid crystal light control structure is stacked with the liquid crystal display structure; the liquid crystal light control structure is configured to provide the shared image to the left viewing area and the right viewing area in the sharing mode, to provide the left viewing field image to the left viewing area and the right viewing field image to the right viewing area in the dual-view mode, and to provide the left viewing field image to the left viewing area or the right viewing field image to the right viewing area in the anti-peep mode.

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

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

[0010] The liquid crystal display structure includes a plurality of sub-pixels arranged in an array, and a black matrix provided between the sub-pixels, wherein the size of the black matrix in the row direction is m, and the size of the sub-pixels in the row direction is P;

[0011] Among them, a and C respectively satisfy the following relationship:

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

[0013] In some embodiments, in the display panel provided by the embodiments of 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] Wherein, α1=β1+α, α is the angle range of the dual-viewing 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 by the embodiments of the present disclosure, 362 μm≤H<480 μm.

[0016] In some embodiments, in the above-mentioned display panel provided by the embodiments of 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 that are opposite to 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 that are opposite to each other, and a second twisted nematic liquid crystal layer located between the third planar electrode and the fourth planar electrode;

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

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

[0021] In some embodiments, in the above-mentioned display panel provided by the embodiments of 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, an embodiment of the present disclosure provides a method for driving the 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 viewing area and the right viewing area;

[0024] In the dual-view mode, the liquid crystal display structure is controlled to display a left-viewing field image and a right-viewing field image, and the liquid crystal light control structure is controlled to provide the left-viewing field image to the left viewing area and the right-viewing field image to the right viewing area;

[0025] In the anti-peeping mode, the liquid crystal display structure is controlled to display the left field image or the right field image, and the liquid crystal light control structure is controlled to provide the left field image to the left viewing area or provide the right field image to the right viewing area.

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

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

[0028] In some embodiments, in the driving method provided in the embodiments of the present disclosure, controlling the liquid crystal display structure to display a left field image or a right field image specifically includes:

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

[0030] In some embodiments, in the above-mentioned driving method provided by the embodiments of 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 so that the liquid crystal grating forms light-shielding strips and light-transmitting strips alternately arranged in a row direction, and the light of the left field of view picture is emitted to the left viewing area through the light-transmitting strips, and / or the light of the right field of view picture is emitted to the right viewing area through the light-transmitting strips.

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

[0034] The liquid crystal display structure is controlled to display a left field image during an odd-numbered frame display time, and / or to display a right field image during an even-numbered frame display time.

[0035] In some embodiments, in the driving method provided in the embodiments of 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 odd-numbered frame display time, a voltage is applied to the first twisted nematic liquid crystal structure so that the light of the left field of view image is emitted to the left viewing area under the action of the first twisted nematic liquid crystal structure; and / or, during the even-numbered frame display time, a voltage is applied to the second twisted nematic liquid crystal structure so that the light of the right field of view image is emitted to 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 embodiments of the present disclosure, controlling the liquid crystal light control structure to provide the shared image to the left viewing area and the right viewing area specifically includes:

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

[0040] On the other hand, an embodiment of the present disclosure provides a display device, including the above-mentioned display panel provided by the embodiment of the present disclosure, and a backlight module located on the light incident side of the display panel.

[0041] On the other hand, an embodiment of the present disclosure provides a vehicle-mounted system, including the above-mentioned display device provided by an embodiment of the present disclosure.

[0042] In some embodiments, the above-mentioned vehicle-mounted system provided by the embodiments of the present disclosure further includes a camera module, which is configured to at least identify whether the source of the touch direction is the main driving direction or the co-driving direction.

[0043] In some embodiments, the above-mentioned vehicle-mounted system provided in the embodiment of the present disclosure further includes a control circuit, which is used to receive the touch direction recognized 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.

[0044] In some embodiments, in the above-mentioned vehicle-mounted system provided by the embodiments of the present 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 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 display a shared image, or to display a left field image and / or a right field image according to the display information.

[0047] In some embodiments, in the above-mentioned in-vehicle system provided by the embodiments of 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 provide the touch information to the primary hardware platform or the secondary hardware platform according to the touch direction; and control the display panel to display the shared image or the left field image according to the feedback information of the primary hardware platform, and control the display panel to display the right field image according to the feedback information of the secondary hardware platform;

[0049] The main hardware platform is configured to provide the processor with display information of the corresponding display area or the corresponding left viewing area according to the touch information;

[0050] The secondary hardware platform is configured to provide display information corresponding to a right viewing area to the processor according to the touch information.

[0051] On the other hand, the present disclosure further provides a driving method of the above-mentioned vehicle-mounted system, comprising:

[0052] Identify whether the touch direction is from the main driver's direction or the co-driver's direction;

[0053] 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.

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

[0055] When the touch direction is from both the main driving direction and the co-pilot direction, or when the touch direction is the main driving direction, generating first display information corresponding to the display area or the left viewing area according to the touch information, and controlling the display panel to display the shared screen or the left viewing field screen according to the first display information;

[0056] When the touch direction is the co-pilot direction, display information corresponding to the right viewing area is generated according to the touch information, and the display panel is controlled to display the right viewing field picture according to the second display information. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] FIG1 is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure;

[0058] FIG2 is another structural schematic diagram of a display panel provided in an embodiment of the present disclosure;

[0059] FIG3 is another structural schematic diagram of a display panel provided in an embodiment of the present disclosure;

[0060] FIG4 is another structural schematic diagram of a display panel provided in an embodiment of the present disclosure;

[0061] FIG5 is a schematic diagram of light emission of the liquid crystal light control structure in FIG1 and FIG2 in a shared state;

[0062] FIG6 is a schematic diagram of light emission of the liquid crystal light control structure in FIG1 and FIG2 in a dual-view state / anti-peeping state;

[0063] FIG7 is a grating structure formed by a liquid crystal grating under pressure according to an embodiment of the present disclosure;

[0064] FIG8 is a diagram showing the light control principle of a liquid crystal grating according to an embodiment of the present disclosure;

[0065] FIG9 is a schematic diagram of light emission of the display panel shown in FIG1 in a shared state;

[0066] FIG10 is a schematic diagram of light emission of the display panel shown in FIG2 in a shared state;

[0067] FIG11 is a cross-sectional view of the display panel shown in FIG2 in the horizontal / vertical direction within the range of -90° to 90° in the shared state;

[0068] FIG12 is a full-viewing angle brightness distribution diagram of the display panel shown in FIG2 in a shared state;

[0069] FIG13 is a schematic diagram of light emission of the display panel shown in FIG1 in a dual-view state;

[0070] FIG14 is a schematic diagram of light emission of the display panel shown in FIG2 in a dual-view state;

[0071] FIG15 is a cross-sectional view of the display panel shown in FIG2 in the range of -90° to 90° in the horizontal and vertical directions in the dual-view state;

[0072] FIG16 is a full-viewing angle brightness distribution diagram of the display panel shown in FIG2 in a dual-view state;

[0073] FIG17 is a schematic diagram of light emission of the display panel shown in FIG1 in the left viewing area anti-peeping state;

[0074] FIG18 is a schematic diagram of light emission of the display panel shown in FIG2 in the left viewing area anti-peeping state;

[0075] FIG19 is a schematic diagram of light emission of the display panel shown in FIG1 in the right viewing area anti-peeping state;

[0076] FIG20 is a schematic diagram of light emission of the display panel shown in FIG2 in the right viewing area anti-peeping state;

[0077] FIG21 is a cross-sectional view of the display panel shown in FIG2 in the horizontal / vertical direction within the range of -90° to 90° in the right viewing area anti-peeping state;

[0078] FIG22 is a full-viewing angle brightness distribution diagram of the display panel shown in FIG2 in the right viewing area anti-peeping state;

[0079] FIG23 is a cross-sectional view of the display panel shown in FIG2 in the horizontal / vertical direction within the range of -90° to 90° in the left viewing area anti-peeping state;

[0080] FIG24 is a full-viewing angle brightness distribution diagram of the display panel shown in FIG2 in the left viewing area anti-peeping state;

[0081] FIG25 is a schematic diagram of area division of a display panel provided by an embodiment of the present disclosure;

[0082] FIG26 is a schematic diagram of light control after a grating opening is enlarged according to an embodiment of the present disclosure;

[0083] FIG27 is a schematic diagram of light emission of the liquid crystal light control structure in FIG3 and FIG4 in a shared state;

[0084] FIG28 is a schematic diagram of light emission of the liquid crystal light control structure in FIG3 and FIG4 in a dual-view state / anti-peeping state;

[0085] FIG29 is another schematic diagram of light emission of the liquid crystal light control structure in FIG3 and FIG4 in the dual-view state / anti-peep state;

[0086] FIG30 is a comparison diagram of the brightness of the twisted liquid crystal display structure provided by the present disclosure at different voltages and different viewing angles;

[0087] FIG31 is a comparison diagram of the brightness attenuation of the twisted liquid crystal display structure provided by the present disclosure at different voltages and different viewing angles;

[0088] FIG32 is a schematic structural diagram of a display device provided in an embodiment of the present disclosure;

[0089] FIG33 is another structural schematic diagram of a display device provided in an embodiment of the present disclosure;

[0090] FIG34 is a schematic diagram of another structure of a display device provided by an embodiment of the present disclosure;

[0091] FIG35 is another structural schematic diagram of a display device provided in an embodiment of the present disclosure;

[0092] FIG36 is a schematic structural diagram of a vehicle-mounted system provided in an embodiment of the present disclosure;

[0093] FIG37 is a schematic diagram of another structure of the vehicle-mounted system provided by an embodiment of the present disclosure;

[0094] FIG38 is a flow chart of a driving method of an in-vehicle system provided by an embodiment of the present disclosure;

[0095] FIG39 is another flowchart of a driving method of an in-vehicle system provided by an embodiment of the present disclosure;

[0096] FIG40 is another flowchart of the driving method of the vehicle-mounted system provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0097] To further clarify the objectives, technical solutions, and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present disclosure. It should be noted that in the drawings, the thicknesses of layers, films, panels, regions, etc. are exaggerated for clarity. In this disclosure, exemplary embodiments are described with reference to cross-sectional views that are schematic representations of idealized embodiments. As such, deviations from the shapes shown in the drawings are to be expected, for example, as a result of manufacturing techniques and / or tolerances. Therefore, the embodiments described in this disclosure should not be construed as limited to the specific shapes of the regions shown in this disclosure, but rather include deviations in shape resulting from, for example, manufacturing. For example, a region illustrated or described as flat may typically have rough and / or nonlinear features; a sharp angle illustrated may be rounded, etc. Therefore, the regions shown in the drawings are schematic in nature, and their sizes and shapes are not intended to illustrate the precise shapes of the regions or reflect true scale, but are intended solely to illustrate the present disclosure. Throughout, identical or similar reference numerals denote identical or similar elements or elements having identical or similar functions. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components.

[0098] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second" and similar terms used in the present disclosure and the claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Inside", "outside", "upper", "lower" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0099] In the following description, when an element or layer is referred to as being “on” or “connected to” another element or layer, the element or layer may be directly on, 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 being “disposed on one side of” another element or layer, the element or layer may be directly on, 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 being “directly on” or “directly connected to” another element or layer, there are no intermediate elements or intermediate layers. The term “and / or” includes any and all combinations of one or more of the associated listed items.

[0100] During the review of related in-vehicle projects, anti-peeping modes are typically implemented by adding a privacy film to the backlight unit (BLU). Therefore, anti-peeping mode and shared mode cannot be used on the same screen, which is contradictory. Dual-view displays, with different views for the driver and passenger on the same screen, are even rarer.

[0101] In order to solve the above technical problems existing in the related art, an embodiment of the present disclosure provides a display panel, as shown in FIG1 to FIG4 , comprising:

[0102] Liquid crystal display structure 001, which is configured to display a shared image in sharing mode, display a left-view image and a right-view image in dual-view mode, and display a left-view image or a right-view image in anti-peeping mode; optionally, the left-view image is for viewing by the driver, and the right-view image is for viewing by the co-driver;

[0103] The liquid crystal light control structure 002 is stacked with the 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 the embodiment of the present disclosure, the liquid crystal light control structure 002 is configured to provide a shared image to the left viewing area and the right viewing area in a sharing mode, to provide a left-viewing field image to the left viewing area and a right-viewing field image to the right viewing area in a dual-viewing mode, and to provide a left-viewing field image to the left viewing area or a right-viewing field image to the right viewing area in an anti-peeping mode.

[0104] In the above-mentioned display panel provided in the embodiment of the present disclosure, a liquid crystal light control structure 002 stacked with the liquid crystal display structure 001 is added to adjust the light output direction, and in conjunction with the display image of the liquid crystal display structure 001, switching between the shared state, the anti-peeping state, and the dual-view state is realized.

[0105] In some embodiments, the liquid crystal display structure 001 of the present disclosure may 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) disposed opposite to each other, a frame sealant 103, a circuit board (e.g., a flexible circuit board FPC, a driver chip IC), and sub-pixels (e.g., odd-numbered column sub-pixels L, even-numbered column 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 may be integrated on the array substrate 101, so that the display panel also has a touch function. The touch electrode layer TE may be a self-capacitive touch electrode or a mutual-capacitive touch electrode, which is not limited in the present 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 base substrate 201 and a second base substrate 202 disposed opposite each other, a liquid crystal layer 203 located between the first base substrate 201 and the second base substrate 202, a first transparent electrode 204 located on a side of the first base substrate 201 close to the liquid crystal layer 203, a second transparent electrode 205 located on a side of the second base substrate 202 close to the liquid crystal layer 203, a first polarizer 206 located on a side of the first base substrate 201 away from the first transparent electrode 204, and a second polarizer 207 located on a side of the second base 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 the polarizer on the side of the opposing substrate 102 (i.e., the light-emitting side of the liquid crystal display structure 001). A third polarizer 104 is provided on the side of 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 the polarizer on the side of the array substrate 101. A fourth polarizer 105 is provided on the side of the opposing 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 and at equal intervals. For example, in Figures 5 and 6, the first transparent electrode 204 is a planar electrode and the second transparent electrode 205 is a plurality of strip electrodes arranged in parallel and 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 normally white liquid crystal grating. The light transmission and blocking principles are 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 90°. The transmission axes of the first polarizer 206 and the second polarizer 207 are perpendicular to each other. Natural light entering the first polarizer 206 rotates 90° along the twist direction of the twisted nematic liquid crystal molecules and exits parallel to the transmission axis of the second polarizer 207, resulting in the liquid crystal light 002' appearing in a bright state. 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 direction of the electric field. Light passing through the first polarizer 206 maintains its original state until it reaches the second polarizer 207. Because the light's polarization plane is perpendicular to the second polarizer 207, it cannot pass through the second polarizer 207, resulting in a dark state.

[0110] Based on this, in the present disclosure, when the liquid crystal grating 002' is not pressurized, as shown in Figures 5, 9 and 10, the liquid crystal grating 002' is in a bright state, light is completely transmitted, and the liquid crystal display structure 001 can display normally, which is a shared state display. After the present disclosure uses optical simulation software (lighttool) for simulation, the resulting brightness distribution diagram is shown in Figures 11 and 12. Figure 11 is a cross-sectional view in the horizontal / vertical (H / V) direction of -90° to 90° (the H direction is the l1 curve, and the V direction is the l2 curve), and Figure 12 is a full-viewing angle brightness distribution diagram, with the horizontal axis being the viewing angle and the vertical axis being the light intensity. As can be seen from Figures 11 and 12, the brightness is normally distributed in the range of -90° to 90°, with the highest brightness at the positive viewing angle, which is no different from a conventional display module.

[0111] When voltage is applied to every other strip of the first transparent electrode 204 and the second transparent electrode 205 (i.e., voltage is applied to only one of the odd-numbered and even-numbered strip electrodes), as shown in Figures 8, 13, and 14, the liquid crystal grating 002' alternates between bright and dark states, allowing light to pass through in the bright state and blocking light in the dark state. Combined with the left and right viewing fields provided by the liquid crystal display structure 001, a dual-viewing state is achieved, with both left and right viewing fields displayed simultaneously. Luminance distribution diagrams simulated using lighttool optical simulation software are shown in Figures 15 and 16. Figure 15 shows a cross-sectional view from -90° to 90° in the H / V direction (curve l1 in the H direction and curve l2 in the V direction), while Figure 16 shows the full-viewing angle luminance distribution diagram, with viewing angle represented on the horizontal axis and light intensity represented on the vertical axis. It can be seen that the brightness is highest at a horizontal viewing angle of ±20°, with the left and right viewing zones ranging from -40° to 0° and 0° to 40°, respectively.

[0112] When voltage is applied to every other strip electrode in the first transparent electrode 204 and the second transparent electrode 205 (i.e., voltage is applied to only one of the strip electrodes in the odd-numbered columns and the strip electrodes in the even-numbered columns), as shown in Figures 8 and 17 to 20, the liquid crystal grating 002' alternates between bright and dark states, allowing light to pass through in the bright state and preventing light from passing through in the dark state. In conjunction with the left field of view provided by the liquid crystal display structure 001, this can achieve an effect where the left viewing area displays the left field of view and the right viewing area is protected from peeping, or in conjunction with the right field of view provided by the liquid crystal display structure 001, it can achieve an effect where the right viewing area displays the right field of view and the left viewing area is protected from peeping, thereby achieving an anti-peeping 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 anti-peeping effect in the right viewing area, while Figures 23 and 24 reflect the anti-peeping effect in the left viewing area. Figures 21 and 23 show cross-sectional views from -90° to 90° in the H / V direction (the l1 curve is for the H direction, and the l2 curve is for the V direction). Figures 22 and 24 show the brightness distribution across all viewing angles, with viewing angle plotted on the abscissa and light intensity plotted on the ordinate. Figures 21 and 22 show that when privacy protection is enabled 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°. Figures 23 and 24 show that when privacy protection is enabled in the left viewing area, the right viewing area ranges from 0° to 40° and 20°, with the highest brightness at a horizontal viewing angle of 20°.

[0113] As shown in Figure 25, α is the angle range of the dual-viewing area (i.e., the left viewing area and the right viewing area), β is the angle range of the crosstalk area between the left viewing area and the right viewing area, and β1 is the range of the large-viewing angle crosstalk area outside the left viewing area and the right viewing area. α and β can be set according to customer needs. α1=α+β1. Furthermore, the present disclosure magnifies the opening of a grating in FIG26 to analyze the relationship between the various parameters in the figure, where P represents the size of the subpixel in the row direction X, the size of the black matrix BM between the m subpixels in the row direction X, a represents the size of the grating opening in the row direction X (i.e., the spacing between two adjacent dark-state stripes in the row direction X, equivalent to the sum of the sizes of a strip electrode and the gaps on both sides of it in the row direction X), C represents the size of the grating in the row direction X (i.e., the sum of the sizes of a dark-state strip and an opening in the row direction X, equivalent to the sum of the sizes of two strip electrodes and two gaps in the row direction), 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 X, respectively, and H is the spacing 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. m and P are determined by actual factory capabilities and designs and can be customized, so they are known quantities.

[0114] From the refractive index formula we can get:

[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 can obtain the values ​​of α2 and β2.

[0118] From the trigonometric function relationship, we can get:

[0119] ③

[0120] ④

[0121] According to formulas ③ and ④, it can be deduced that a and C respectively satisfy the following relationships:

[0122] ⑤

[0123] ⑥C=2m+2P.

[0124] As can be seen from formula ④, H is proportional to P, and the smaller P is, the higher the resolution is. Therefore, if you want to improve the resolution, you need to make H as thin as possible. Considering the need to ensure the manufacturing yield and efficacy of other functional layers besides the base substrate in the liquid crystal display structure 001 and the liquid crystal light control structure 002, and considering that the thickness of other functional layers is small compared to the thickness of the base substrate and can be ignored, the spacing 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 two base substrates (e.g., the base substrate of the array substrate 101 and the first base substrate 201, or the base substrate of the counter substrate 102 and the second base substrate 202), the adhesive layer 003, and a polarizer (e.g., the first polarizer 206 or the second polarizer 207). The thickness of the substrate (e.g., glass substrate) in the relevant vehicle-mounted module is 300μm to 700μm, the thickness of the bonding layer 003 is 100μm to 500μm, and the thickness of the polarizer is 80μm to 220μm. Therefore, the sum of the thicknesses of the two substrates, the bonding layer 003, and the polarizer is 480μm to 1420μm. In the present disclosure, the substrate can be a thinned glass substrate with a thickness of 130μm on the market, the bonding layer 003 uses the thinnest OCA glue with a thickness of 25μm, and the polarizer uses a compensation polarizer with a thickness of 77μm. In this way, H can be thinned to 362μm. Therefore, H in the present disclosure can be greater than or equal to 362μm and less than 480μm. It should be understood that with the advancement of technology, the substrate, polarizer, and bonding layer may be made of materials with thinner thickness. Therefore, in some embodiments, H in the present disclosure may be less than 362μm.

[0125] In some embodiments, in the display panel provided by the embodiments of 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 that are stacked, 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 a 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 a 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 opposite 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 that are 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 that are 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 pre-tilt direction of the liquid crystal molecules in the first twisted nematic liquid crystal layer 803 is opposite to the pre-tilt direction of the liquid crystal molecules in the second twisted nematic liquid crystal layer 903 .

[0130] In some embodiments, as shown in FIG27 , when neither the first nor the second twisted nematic liquid crystal structure 208 , 209 is pressurized, a completely white image is displayed, achieving a shared state. As shown in FIG28 , when the first twisted nematic liquid crystal structure 208 is pressurized, the liquid crystal twist causes the optical path to deflect to the left, illuminating the left viewing area. This, in conjunction with the liquid crystal display structure 001 , provides the left field of view during odd frames. The left viewing area then displays the left field of view. Similarly, as shown in FIG29 , when the second twisted nematic liquid crystal structure 209 is pressurized, the liquid crystal twist causes the optical path to deflect to the right, illuminating the right viewing area. This, in conjunction with the liquid crystal display structure 001 , provides the right field of view during even frames. The right viewing area then displays the right field of view, thereby achieving a dual-view state. When only the left viewing area is illuminated, and in conjunction with the liquid crystal display structure 001 providing the left field of view during odd frames, the left viewing area displays the left field of view while the right viewing area is protected from peeping. When only the right viewing area is lit and the right viewing field image is provided in the even-numbered frames by the liquid crystal display structure 001, the right viewing area can display the right viewing field image and the left viewing area can be protected from peeping.

[0131] TN LCD screens exhibit a certain degree of viewing angle deviation at maximum brightness during use, a major drawback of TN LCD screens in conventional panel applications. However, this characteristic of TN screens is exploited in this disclosure to achieve light control for both left and right fields of view. Figures 30 and 31 show the actual viewing angle measurements of TN screens in this disclosure, as well as a comparison of brightness at different voltages. The test results show that at 1.9V, the brightness effect is optimal, with an optimal viewing angle of 20°, and crosstalk in the other field of view is also minimized.

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

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

[0134] In 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 viewing area and the right viewing area;

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

[0136] In the anti-peeping mode, the liquid crystal display structure is controlled to display the left field image or the right field image, and the liquid crystal light control structure is controlled to provide the left field image to the left viewing area or provide the right field image to the right viewing area.

[0137] In some embodiments, in the above-mentioned driving method provided in the embodiments of the present disclosure, controlling the liquid crystal display structure to display the left field of view image and / or the right field of view image may specifically include: controlling the odd-numbered columns of sub-pixels of the liquid crystal display structure to display the left field of view image and / or the even-numbered columns of sub-pixels to display the right field of view image; and in the right viewing area anti-peeping state, the even-numbered columns of sub-pixels may be controlled to display the L0 grayscale image; and in the left viewing area anti-peeping state, the odd-numbered columns of sub-pixels may be controlled to display the L0 grayscale image. Accordingly, the liquid crystal light control structure may include 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 may specifically include: applying a voltage to the liquid crystal grating so that the liquid crystal grating forms light-shielding strips and light-transmitting strips alternately arranged in the row direction, so that light from the left field of view image is emitted to the left viewing area through the light-transmitting strips, and / or light from the right field of view image is emitted to the right viewing area through the light-transmitting strips.

[0138] In some embodiments, in the above-mentioned driving method provided in the embodiments of the present disclosure, controlling the liquid crystal display structure to display the left field of view picture and / or the right field of view picture can also be achieved by the following steps: controlling the liquid crystal display structure to display the left field of view picture during the odd frame display time, and / or, to display the right field of view picture during the even frame display time. Accordingly, the liquid crystal light control structure includes a first twisted nematic liquid crystal structure and a second twisted nematic liquid crystal structure arranged in a stacked manner; controlling the liquid crystal light control structure to provide the left field of view picture to the left viewing area, and / or, to provide the right field of view picture to the right viewing area, specifically includes: applying a voltage to the first twisted nematic liquid crystal structure during the odd frame display time, so that the light of the left field of view picture is emitted to 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 the even frame display time, so that the light of the right field of view picture is emitted to the right viewing area under the action of the second twisted nematic liquid crystal structure.

[0139] In some embodiments, in the above-mentioned driving method provided in the embodiments of the present disclosure, controlling the liquid crystal light control structure to provide a shared screen to the left viewing area and the right viewing area may specifically include: not applying voltage to the liquid crystal light control structure, so that the light of the shared screen is emitted to the left viewing area and the right viewing area.

[0140] Based on the same inventive concept, the present disclosure provides a display device, as shown in Figures 32 to 35 , comprising the display panel PNL described above, and a backlight module BLU located on the light-entering side of the display panel PNL. The backlight module BLU can be either a direct-lit backlight module or an edge-lit backlight module. Because the principles underlying the display device and the display panel are similar, the implementation of the display device described above can be referenced with respect to the implementation of the display panel described above, and any repetitions will not be repeated.

[0141] Based on the same inventive concept, the present disclosure provides an in-vehicle system, as shown in Figures 36 and 37 , including the display device DD provided in the present disclosure. Because the principles underlying the in-vehicle system and the display panel are similar, the implementation of the in-vehicle system provided in the present disclosure can be referenced to the implementation of the display panel provided in the present disclosure, and any repetitions will not be repeated.

[0142] In some embodiments, as shown in Figures 36 and 37 , the in-vehicle system provided by embodiments of the present disclosure may further include a camera module CCM, which is configured to at least identify whether the touch direction originates from the primary driver's seat or the secondary driver's seat. In some embodiments, the camera module CCM may also be used to record images and sounds while the vehicle is in motion, although this disclosure does not limit this. Optionally, the camera module CCM may be external to the display device DD, or alternatively, the camera module CCM may be internal to the display device DD.

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

[0144] In some embodiments, a hardware platform SoC can be used to respond to bilateral touches on the main driver's seat and the co-driver's seat. As shown in Figure 36, the control circuit CC may include a hardware platform SoC and a processor FPGA; wherein 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 touch information; the processor FPGA is configured to control the display panel PNL to display a shared screen, or to display a left field of view screen and / or a right field of view screen according to the display information.

[0145] Specifically, as shown in Figure 38, when the display panel PNL is operating in a shared state, there is only one shared screen, and the hardware platform SoC can directly respond to touch operations. When the display panel PNL is operating in a dual-view state or a switchable anti-peeping state, there are two screens, the left field of view and the right field of view, or only the left field of view or the right field of view. The camera module CCM is required to identify the touch direction, identifying whether the touch direction is from the main driver's seat or the front passenger seat. The hardware platform SoC responds in the corresponding user interface design (i.e., UI interface) based on the identified touch direction. If there is a simultaneous touch on both sides, the processor FPGA sets a priority algorithm internally, setting the main driving direction to touch first to ensure the driver's needs and safety.

[0146] In some embodiments, two hardware platforms SoC can be used to respond to the unilateral touch of the main driver's seat and the unilateral touch of the co-driver's seat respectively. As shown in FIG37 , the control circuit CC includes a main hardware platform SoC1, a sub-hardware platform SoC2 and a processor FPGA; wherein 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 provide the touch information to the main hardware platform SoC1 or the sub-hardware platform SoC2 according to the touch direction. For example, when the touch direction is the main driving direction, the processor FPGA provides the touch information to the main hardware platform SoC1, and the main hardware platform SoC2 oC1 provides the processor FPGA with display information of the corresponding display area or the corresponding left visual area based on the touch information; accordingly, the processor FPGA can also control the display panel PNL to display the shared screen or the left visual field screen based on the feedback information of the main hardware platform SoC1; for example, when the touch direction is the co-pilot direction, the processor FPGA provides the touch information to the secondary hardware platform SoC2; the secondary hardware platform SoC2 is configured to provide the processor FPGA with display information of the corresponding right visual area based on the touch information; in this case, the processor FPGA can also control the display panel PNL to display the right visual field screen based on the feedback information of the secondary hardware platform SoC2.

[0147] Specifically, in a vehicle system with a primary hardware platform SoC1 and a secondary hardware platform SoC2, as shown in Figure 39, when the display device DD operates in a shared state, there is only one shared screen, which is output by the primary hardware platform SoC1. The processor FPGA transmits touch information to the primary hardware platform SoC1, which then responds to touch operations. When the display device DD operates in a dual-view or switchable anti-peeping state, with two screens (left and right), or a single screen with either the left or right field of view, the camera module CCM is required to identify the direction of the touch, determining whether it is from the driver's seat or the passenger seat. Based on the direction identified by the camera module CCM, the processor FPGA transmits the touch information to the corresponding primary hardware platform SoC1 or secondary hardware platform SoC2, which then responds to the touch operation. If both left and right touches occur simultaneously, the processor FPGA internally sets a priority algorithm to prioritize touches in the primary driving direction to ensure driver needs and safety.

[0148] Based on the same inventive concept, an embodiment of the present disclosure provides a driving method for the above-mentioned vehicle-mounted system. Since the principle of solving the problem by the driving method is similar to the principle of solving the problem by the above-mentioned vehicle-mounted system, the implementation of the driving method provided by the embodiment of the present disclosure can refer to the implementation of the above-mentioned vehicle-mounted system provided by the embodiment of the present disclosure, and the repeated parts will not be repeated.

[0149] In some embodiments, an embodiment of the present disclosure provides a method for driving an in-vehicle system, as shown in FIG40 , including the following steps:

[0150] S4001, identifying whether the touch direction is from the main driver's direction or the co-driver's direction;

[0151] S4002: Receive touch information and the identified touch direction, and respond to the touch operation according to the touch direction and the touch information.

[0152] In some embodiments, in the driving method provided in the embodiments of the present disclosure, responding to a touch operation according to the touch direction and touch information may specifically include:

[0153] When the touch direction is from both the main driving direction and the co-pilot direction, or when the touch direction is the main driving direction, generating first display information corresponding to the display area or the left viewing area according to the touch information, and controlling the display panel to display the shared screen or the left viewing field screen according to the first display information;

[0154] When the touch direction is the co-pilot direction, display information corresponding to the right viewing area is generated according to the touch information, and the display panel is controlled to display the right viewing field image according to the second display information.

[0155] As can be seen from the above, the present disclosure implements dual-touch functionality by identifying whether the touch direction is the primary or secondary driver's direction, using this as a switch to enable left / right image touch, and then displaying the corresponding screen. If both left and right touches occur simultaneously, an algorithm can be set to prioritize the primary driver's direction to ensure driver needs and safety.

[0156] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present disclosure.

[0157] Obviously, those skilled in the art may make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if such changes and modifications of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include such changes and modifications.

Claims

1. A display panel, wherein: include: a liquid crystal display structure configured to display a shared image in a sharing mode, a left-viewing field image and a right-viewing field image in a dual-viewing mode, and a left-viewing field image or a right-viewing field image in an anti-peeping mode; A liquid crystal light control structure is stacked with the liquid crystal display structure; the liquid crystal light control structure is configured to provide the shared image to the left viewing area and the right viewing area in the sharing mode, to provide the left viewing field image to the left viewing area and the right viewing field image to the right viewing area in the dual-view mode, and to provide the left viewing field image to the left viewing area or the right viewing field image to the right viewing area in the anti-peep mode.

2. The display panel according to claim 1, wherein: The liquid crystal light control structure includes a liquid crystal grating.

3. The display panel according to claim 2, wherein: The liquid crystal grating includes a plurality of gratings arranged in a row direction, the size of the opening of the grating in the row direction is a, and the size of the grating in the row direction is C; The liquid crystal display structure includes a plurality of sub-pixels arranged in an array, and a black matrix provided between the sub-pixels, wherein the size of the black matrix in the row direction is m, and the size of the sub-pixels in the row direction is P; Among them, a and C respectively satisfy the following relationship: H is the distance between the liquid crystal layer of the liquid crystal display structure and the liquid crystal layer of the liquid crystal light control structure in the stacking direction, and α2 and β2 are respectively the maximum angle and minimum angle between the light of the left field of view or the right field of view at the grating opening and the row direction.

4. The display panel according to claim 3, wherein: α2 and β2 respectively satisfy the following relationships: sin(90°-α1)=n*sin(90°-α2), sin(90°-β1)=n*sin(90°-β2); Wherein, α1=β1+α, α is the angle range of the dual-viewing 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 according to claim 3 or 4, wherein: 362μm≤H<480μm. The display panel according to 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 that are opposite to 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 that are opposite to each other, and a second twisted nematic liquid crystal layer located between the third planar electrode and the fourth planar electrode; The pre-tilt direction of the liquid crystal molecules in the first twisted nematic liquid crystal layer is opposite to the pre-tilt direction of the liquid crystal molecules 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 exiting side or the light incident side of the liquid crystal display structure.

8. The display panel according to claim 7, wherein: The liquid crystal display structure includes an array substrate, and the array substrate includes a touch electrode layer.

9. A method for driving a display panel according to 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 viewing area and the right viewing area; In the dual-view mode, the liquid crystal display structure is controlled to display a left-viewing field image and a right-viewing field image, and the liquid crystal light control structure is controlled to provide the left-viewing field image to the left viewing area and the right-viewing field image to the right viewing area; In the anti-peeping mode, the liquid crystal display structure is controlled to display the left field image or the right field image, and the liquid crystal light control structure is controlled to provide the left field image to the left viewing area or provide the right field image to the right viewing area.

10. The driving method according to claim 9, wherein: Controlling the liquid crystal display structure to display a left field image and a right field image specifically includes: Control the odd-numbered columns of sub-pixels in the liquid crystal display structure to display the left field image and the even-numbered columns of sub-pixels to display the left field image. Displays the right field image.

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

12. The driving method according to 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 so that the liquid crystal grating forms light-shielding strips and light-transmitting strips alternately arranged in a row direction, and the light of the left field of view picture is emitted to the left viewing area through the light-transmitting strips, and / or the light of the right field of view picture is emitted to the right viewing area through the light-transmitting strips.

13. The driving method according to claim 9, wherein: Controlling the liquid crystal display structure to display a left field image and / or a right field image specifically includes: The liquid crystal display structure is controlled to display a left field image during an odd-numbered frame display time, and / or to display a right field image during an even-numbered frame display time.

14. The driving method according to 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 which are stacked; 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 odd-numbered frame display time, a voltage is applied to the first twisted nematic liquid crystal structure so that the light of the left field of view image is emitted to the left viewing area under the action of the first twisted nematic liquid crystal structure; and / or, during the even-numbered frame display time, a voltage is applied to the second twisted nematic liquid crystal structure so that the light of the right field of view image is emitted to 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 control structure to provide the shared image to the left viewing area and the right viewing area specifically includes: No voltage is applied to the liquid crystal light control structure, so that the light of the shared screen is emitted to the left viewing area and the right viewing area.

16. A display device, wherein: The display device comprises a display panel as claimed 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: Comprising the display device as claimed in claim 16.

18. The vehicle-mounted system according to claim 17, wherein: It also includes a camera module, which is configured to at least identify whether the touch direction source is the main driving direction or the co-pilot direction.

19. The vehicle-mounted system according to claim 18, wherein: It also includes a control circuit, which is used to receive the touch direction recognized 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 according to 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 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 display a shared image, or to display a left field image and / or a right field image according to the display information.

21. The vehicle-mounted system according to 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 provide the touch information to the primary hardware platform or the secondary hardware platform according to the touch direction; and control the display panel to display the shared image or the left field image according to the feedback information of the primary hardware platform, and control the display panel to display the right field image according to the feedback information of the secondary hardware platform; The main hardware platform is configured to provide the processor with display information of the corresponding display area or the corresponding left viewing area according to the touch information; The secondary hardware platform is configured to provide display information corresponding to a right viewing area to the processor according to the touch information.

22. A driving method of the vehicle-mounted system according to any one of claims 17 to 21, wherein: include: Identify whether the touch direction is from the main driver's direction or the co-driver's direction; 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.

23. The driving method according to claim 22, wherein: Responding to the touch operation according to the touch direction and the touch information specifically includes: When the touch direction is from both the main driving direction and the co-pilot direction, or when the touch direction is the main driving direction, generating first display information corresponding to the display area or the left viewing area according to the touch information, and controlling the display panel to display the shared screen or the left viewing field screen according to the first display information; When the touch direction is the co-pilot direction, display information corresponding to the right viewing area is generated according to the touch information, and the display panel is controlled to display the right viewing field picture according to the second display information.

Images