Liquid crystal panel and control method therefor, and display device

Abstract

Provided in the present application are a liquid crystal panel, a display device, and a control method. The liquid crystal panel comprises: a first substrate and a second substrate, which are arranged opposite each other; liquid crystal molecules located between the first substrate and the second substrate; a first electrode layer located on the side of the first substrate that faces the second substrate; and a second electrode layer located on the side of the second substrate that faces the first substrate, wherein the first electrode layer comprises at least one electrode unit, and the electrode unit comprises N first electrodes, N being an integer greater than 1. The liquid crystal panel comprises at least a first state and a second state, wherein the first state comprises a liquid crystal prism mode state, the second state comprises a mode switching state, and the absolute value of the voltage of at least one of the first electrodes in the first state is less than the absolute value of the voltage of at least one of the first electrodes in the second state, thus shortening a response time of the liquid crystal panel, and improving the user experience.

Description

Liquid crystal panel, control method thereof, and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202410346837.5, filed on March 25, 2024, entitled “Liquid Crystal Panel, Control Method Thereof, and Display Device,” and the entire contents of that application are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of display technology, and in particular to a liquid crystal panel, a display device including the liquid crystal panel, and a control method for the liquid crystal panel. Background Art

[0004] With the development of display technology, the application scenarios of three-dimensional display are increasing. Therefore, research on realizing both two-dimensional display and three-dimensional display in a display device has become a research hotspot in this field.

[0005] Currently, display devices achieve both 2D and 3D displays by stacking a liquid crystal cell on the display side of a display panel. By controlling the liquid crystal cell to switch between different states, the display device can switch between 2D and 3D displays. However, current display devices are slow to switch from 3D to 2D display, resulting in long response times that affect the user experience.

[0006] Summary of the Invention

[0007] In view of this, the present application provides a liquid crystal panel, a display device, and a control method, the scheme of which is as follows:

[0008] A liquid crystal panel, comprising a first substrate and a second substrate disposed opposite to each other, liquid crystal molecules located between the first substrate and the second substrate, a first electrode layer located on a side of the first substrate facing the second substrate, and a second electrode layer located on a side of the second substrate facing the first substrate, wherein the first electrode layer includes at least one electrode unit, and the electrode unit includes N first electrodes, where N is an integer greater than 1;

[0009] The liquid crystal panel includes at least a first state and a second state, the first state includes a liquid crystal prism mode state, the second state includes a mode switching state, and the absolute value of the voltage of at least one of the first electrodes in the first state is smaller than the absolute value of the voltage of at least one of the first electrodes in the second state.

[0010] A display device includes a display panel and a liquid crystal panel located on the display side of the display panel, wherein the liquid crystal panel is the liquid crystal panel described above.

[0011] A control method, applied to the above-mentioned liquid crystal panel, includes:

[0012] When the liquid crystal panel is in a second state, the absolute value of the voltage of at least one first electrode in the second state is controlled to be greater than the absolute value of the voltage of at least one first electrode in the first state, wherein the first state includes a liquid crystal prism mode state and the second state includes a mode switching state.

[0013] The liquid crystal panel provided in the embodiment of the present application includes at least a first state and a second state, the first state includes a liquid crystal prism mode state, the second state includes a mode switching state, and the absolute value of the voltage of at least one first electrode in the first state is smaller than the absolute value of the voltage of at least one first electrode in the second state. Therefore, by setting the absolute value of the voltage of at least one first electrode in the second state to be larger, the deflection speed of at least part of the liquid crystal molecules in the process of switching the liquid crystal panel from the liquid crystal prism state to other states is increased, thereby shortening the response time of the liquid crystal panel and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a schematic diagram of a partial structure of a liquid crystal cell in a liquid crystal prism state having an equivalent optical function of a rod prism;

[0015] FIG2 is a schematic diagram of a partial structure of a liquid crystal cell in a transmission state;

[0016] FIG3 is a schematic diagram of a partial structure of a liquid crystal panel provided in one embodiment of the present application;

[0017] FIG4 is a schematic diagram showing voltage distribution on N first electrodes when the liquid crystal panel provided by one embodiment of the present application is in a liquid crystal prism mode;

[0018] 5 is a schematic diagram of voltage distribution on N first electrodes when the liquid crystal panel provided by one embodiment of the present application is in a first mode switching state;

[0019] FIG6 is a schematic diagram of equivalent prisms corresponding to N first electrodes when the liquid crystal panel shown in FIG4 is in the first state;

[0020] FIG7 is a schematic diagram of a partial structure of a liquid crystal panel provided in another embodiment of the present application;

[0021] FIG8 is a schematic diagram showing voltage distribution on N first electrodes when a liquid crystal panel provided by another embodiment of the present application is in a liquid crystal prism mode;

[0022] FIG9 is a schematic diagram showing voltage distribution on N first electrodes when the liquid crystal panel provided by another embodiment of the present application is in a first mode switching state;

[0023] FIG10 is a schematic diagram illustrating a process of switching a liquid crystal panel from a liquid crystal prism mode state to a first mode switching state according to an embodiment of the present application;

[0024] FIG11 is a schematic diagram showing voltage distribution on N first electrodes when the liquid crystal panel provided by one embodiment of the present application is in a first transmission state;

[0025] FIG12 is a schematic diagram showing voltage distribution on N first electrodes when the liquid crystal panel provided by one embodiment of the present application is in the second transmission state;

[0026] FIG13 is a schematic diagram illustrating a process of switching a liquid crystal panel from a first transmission state to a second transmission state according to an embodiment of the present application;

[0027] FIG14 is a schematic diagram of a partial structure of a liquid crystal panel provided in yet another embodiment of the present application;

[0028] FIG15 is a schematic structural diagram of a display device provided in one embodiment of the present application;

[0029] FIG16 is a partial schematic diagram of pixel arrangement in a display panel of a display device provided in one embodiment of the present application;

[0030] FIG17 is a schematic diagram illustrating the extension direction of the first electrodes in the liquid crystal panel of the display device provided in one embodiment of the present application;

[0031] FIG18 is a schematic diagram of a display device according to an embodiment of the present application switching from a three-dimensional display mode to a two-dimensional display mode;

[0032] FIG19 is a schematic diagram showing a display device according to another embodiment of the present application switching from a three-dimensional display mode to a two-dimensional display mode. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] It will be apparent to those skilled in the art that various modifications and variations can be made in this application without departing from the spirit or scope of this application. Therefore, this application is intended to cover modifications and variations of this application that fall within the scope of the corresponding claims (technical solutions claimed for protection) and their equivalents. It should be noted that the embodiments provided in the examples of this application can be combined with each other without contradiction.

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0036] As mentioned in the background art section, current display devices are slow and have a long response time when switching from 3D display to 2D display, which affects user experience.

[0037] Specifically, the current display device is achieved by setting a control electrode in the liquid crystal box to form a periodic electric field. Through the periodic electric field control, the liquid crystal box can be in a liquid crystal prism state with an equivalent cylindrical prism optical function, as shown in FIG1 , or in a transmission state, as shown in FIG2 , thereby enabling the display device to realize the display of a three-dimensional display image and the display of a two-dimensional display.

[0038] Currently, when display devices switch from a three-dimensional display screen to a two-dimensional display screen, they mainly power off the control electrodes in the liquid crystal box, relying on the liquid crystal alignment force to switch the liquid crystal molecules from the liquid crystal prism state to the transmission state. The switching speed is slow and the response time is long, which affects the user experience.

[0039] In view of this, an embodiment of the present application provides a liquid crystal panel, as shown in FIG3 , which includes a first substrate 10 and a second substrate 20 disposed opposite each other, liquid crystal molecules 30 located between the first substrate 10 and the second substrate 20, a first electrode layer 40 located on the side of the first substrate 10 facing the second substrate 20, and a second electrode layer 50 located on the side of the second substrate 20 facing the first substrate 10. The first electrode layer 40 includes at least one electrode unit, each of which includes N first electrodes 41, where N is an integer greater than 1. In this embodiment, the liquid crystal panel includes at least a first state and a second state, the first state includes a liquid crystal prism mode state, and the second state includes a mode switching state, and the absolute value of the voltage of at least one first electrode in the first state is less than the absolute value of the voltage of at least one first electrode in the second state, as shown in Figures 4 and 5. Figure 4 is a schematic diagram of the absolute value of the voltage applied to N first electrodes when the liquid crystal panel is in the first state, and Figure 5 is a schematic diagram of the absolute value of the voltage applied to N first electrodes when the liquid crystal surface is in the second state. Therefore, by setting the absolute value of the voltage of at least one first electrode in the second state to be larger, the deflection speed of at least part of the liquid crystal molecules in the process of switching the liquid crystal panel from the liquid crystal prism state to other states is increased, thereby shortening the response time of the liquid crystal panel and improving the user experience.

[0040] As shown in Figure 6, Figure 6 is a schematic diagram of the equivalent prism corresponding to the N first electrodes when the liquid crystal panel shown in Figure 4 is in the first state, wherein the horizontal axis represents the relative positions of the N first electrodes in the liquid crystal panel, the origin 0 is the center position of the outgoing light in the area where the N first electrodes are located, and the vertical axis represents the delay amount. It should be noted that in optics, the retardation of the equivalent prism refers to the phase difference between light of different polarization directions after the light wave passes through the prism. This concept is usually used to describe the effect of birefringent materials (such as wave plates) on light waves. For example, when linearly polarized light enters a birefringent material, the light wave will be decomposed into two orthogonal polarization components and propagate along the two main axes of the material. The two components have different propagation speeds in the material, which causes them to have a phase difference after passing through the material. This phase difference is the so-called retardation.

[0041] It should be noted that, in this embodiment, the first electrode layer may include a plurality of strip electrodes extending along the third direction W and arranged along the second direction Y, and a plurality of electrode units are arranged along the second direction. In other words, the electrode strips are cyclically arranged on the liquid crystal panel with the electrode unit (i.e., N) as a period. The electrodes shown in Figures 4 and 5 are schematic diagrams of the potentials of the N electrodes in an electrode unit. For other detailed descriptions of the electrodes, please refer to Figure 17.

[0042] Specifically, in one embodiment of the present application, the absolute value of the voltage on the second electrode layer is a fixed voltage value, and the liquid crystal panel changes the electric field strength between the first electrode and the second electrode layer by changing the voltage on each first electrode in the first electrode layer, thereby changing the deflection speed of the liquid crystal molecules, and then changing the response time of the liquid crystal panel.

[0043] It should be noted that in this embodiment, when the liquid crystal panel is operating, when the absolute value of the voltage on the first electrode is fixed, the voltage on the first electrode switches back and forth between a positive voltage and a negative voltage. That is, the voltage on the first electrode reverses its polarity at a certain frequency to prevent abnormal polarization of the liquid crystal panel. Therefore, in this embodiment, the comparison of the voltage values ​​on the first electrode in different states refers to the comparison of the absolute values ​​of the voltages on the first electrodes. The comparison of the voltage values ​​on different first electrodes in the same state also refers to the comparison of the absolute values ​​of the voltages on the first electrodes, that is, the comparison of the magnitude of the voltages, and has nothing to do with the positive or negative polarity of the applied voltage.

[0044] It should also be noted that during operation of the liquid crystal panel, at the same time, the voltages on the first electrodes have the same polarity, that is, at the same time, the voltages applied to the first electrodes are all positive or negative.

[0045] Based on the above embodiments, in one embodiment of the present application, the mode switching state includes a first mode switching state. In the first mode switching state, as further shown in FIG5 , the absolute values ​​of the voltages applied to the N first electrodes are the same, namely, the first preset voltage V1, and the first preset voltage V1 is greater than the minimum absolute value of the voltages applied to the N first electrodes in the first state. Continuing with FIG4 and FIG5 , the absolute value of the voltages applied to the N first electrodes is greater than the minimum absolute value of the voltages applied to the N first electrodes in the first state. Thus, by applying the same voltage to the N first electrodes, the response time of the liquid crystal panel is shortened, while the difficulty of controlling the voltages applied to the N first electrodes is reduced.

[0046] Optionally, based on the above embodiments, in one embodiment of the present application, the first preset voltage can be greater than k1 times the minimum value of the absolute value of the voltage on the N first electrodes in the first state, where k1 is a positive integer. Thus, by setting the voltage value of the first preset voltage based on the minimum value of the absolute value of the voltage on the N first electrodes in the first state, the absolute value of the voltage on the first electrode in the second state can be increased, thereby shortening the response time of the liquid crystal panel.

[0047] It should be noted that in the above embodiment, in the first state, the absolute values ​​of the voltages on the N first electrodes are not exactly the same, and the minimum absolute value of the voltages on the N first electrodes in the first state is the minimum value among the absolute values ​​corresponding to the voltages applied to the N first electrodes when the liquid crystal panel is in the first state.

[0048] In another embodiment of the present application, the first preset voltage can be less than 1 / k2 of the maximum absolute value of the voltage on the N first electrodes in the first state, where k2 is a positive integer. Thus, by setting the voltage value of the first preset voltage based on the maximum absolute value of the voltage on the N first electrodes in the first state, the absolute value of the voltage on the first electrode in the second state is increased, thereby shortening the response time of the liquid crystal panel.

[0049] In the above embodiment, in the first state, the absolute values ​​of the voltages on the N first electrodes are not exactly the same, and the maximum absolute value of the voltages on the N first electrodes in the first state is the maximum value of the absolute values ​​corresponding to the voltages applied to the N first electrodes when the liquid crystal panel is in the first state.

[0050] Specifically, in one embodiment of the present application, the first preset voltage is not less than the maximum value of the absolute values ​​of the voltages on the N first electrodes in the first state, that is, the first preset voltage is greater than or equal to the maximum value of the absolute values ​​of the voltages on the N first electrodes in the first state, thereby increasing the deflection speed of the liquid crystal molecules located in the area where each first electrode is located by applying a transition voltage to each first electrode in the liquid crystal panel, so that the liquid crystal molecules located in the area where each first electrode is located quickly reach the same deflection angle, thereby shortening the response time of the liquid crystal panel.

[0051] When the liquid crystal panel is in the first state, the absolute values ​​of the voltages applied to the N first electrodes are not identical. Accordingly, the deflection angles of the liquid crystal molecules corresponding to the regions where the N first electrodes are located are also different. Therefore, when the liquid crystal molecules corresponding to the regions where the first electrodes are located reach the same deflection angle, they need to deflect at different angles. If the same voltage is applied to the first electrodes when switching to the first mode, there may be a certain amount of power waste or significant differences in the time required for the liquid crystal molecules corresponding to the regions where the first electrodes are located to reach the same deflection angle.

[0052] Therefore, in one embodiment of the present application, when the liquid crystal panel is in the first mode switching state, the absolute values ​​of the voltages applied to the first electrodes are not exactly the same. By differentially setting the absolute values ​​of the voltages applied to the first electrodes when the liquid crystal panel is in the first mode switching state, the difference in the time required for the liquid crystal molecules corresponding to the areas where the first electrodes are located to reach the same deflection angle is reduced, thereby reducing power consumption while shortening the response time of the liquid crystal panel.

[0053] Specifically, in one embodiment of the present application, the mode switching state includes a first mode switching state, the N first electrodes include an i-th electrode and a j-th electrode, in the first state, the absolute value of the voltage on the i-th electrode is smaller than the absolute value of the voltage on the j-th electrode, and in the first mode switching state, the absolute value of the voltage on the i-th electrode is greater than the absolute value of the voltage on the j-th electrode, so that in the first mode switching state, a larger voltage is applied to the first electrode to which a smaller voltage is applied when in the first state, and a smaller voltage is applied to the first electrode to which a larger voltage is applied when in the first state, thereby shortening the time difference when the liquid crystal molecules corresponding to each first electrode are deflected to the same angle, thereby reducing power consumption.

[0054] Optionally, in one embodiment of the present application, in the first state, the maximum voltage absolute value on the N first electrodes is a first voltage value, and in the first mode switching state, the maximum voltage absolute value on the N first electrodes is a second voltage value, and the second voltage value is not less than the first voltage value, so as to accelerate the deflection of the liquid crystal molecules in the area by applying a transition voltage greater than the first voltage value to some of the N first electrodes, reduce the total time it takes for each liquid crystal molecule in the liquid crystal panel to deflect to the same state, and shorten the response time of the liquid crystal panel.

[0055] Specifically, as shown in Figure 7, in one embodiment of the present application, the liquid crystal panel includes a plurality of light modulation units 60. In the first state, one light modulation unit corresponds to forming a liquid crystal prism. In this embodiment, as shown in Figure 8, the i-th electrode and the j-th electrode are located in the same light modulation unit, and in a plane parallel to the liquid crystal panel, the i-th electrode and the center position A of the light emitting surface of the light modulation unit have a first distance D1, and the j-th electrode and the center position A of the light emitting surface of the light modulation unit have a second distance D2, and the first distance D1 is smaller than the second distance D2.

[0056] As shown in FIG8 , in the first state, the absolute value of the voltage applied to the i-th electrode is smaller than the absolute value of the voltage applied to the j-th electrode; as shown in FIG9 , in the first mode switching state, the absolute value of the voltage on the i-th electrode is greater than the absolute value of the voltage on the j-th electrode.

[0057] In one embodiment of the present application, when the liquid crystal panel is in the first state, the absolute value of the voltage applied to the first electrode located in the central area of ​​the light modulation unit in the liquid crystal panel is relatively small, and the absolute value of the voltage applied to the first electrode located in the edge area of ​​the light modulation unit in the liquid crystal panel is relatively large. For example, along the direction from the edge area to the center area of ​​the light modulation unit, when the liquid crystal panel is in the first state, as shown in FIG8 , the absolute value of the voltage applied to each first electrode gradually decreases; correspondingly, in this embodiment, along the direction from the edge area to the center area of ​​the light modulation unit, when the liquid crystal panel is in the first mode switching state, as shown in FIG9 , the absolute value of the voltage applied to each first electrode gradually increases. However, this application does not limit this, and the specific situation depends on the specific situation.

[0058] It should be noted that in the above-mentioned embodiment, the voltage distribution on the N electrodes located in the same light modulator unit is not necessarily mirror-symmetrical. In an optional embodiment of the present application, in a plane parallel to the liquid crystal panel, within the same light modulator unit, the voltage values ​​corresponding to the first electrodes located on different sides of the preset position of the light modulator unit and at the same distance from the preset position are different. The preset position is the center position of the light emitting surface of the light modulator unit, that is, the absolute values ​​of the voltages applied to the first electrodes symmetrical about the center position of the light emitting surface of the light modulator unit are different, but the present application is not limited to this. In other embodiments of the present application, within the same light modulator unit, the voltage values ​​corresponding to the first electrodes located on different sides of the preset position of the light modulator unit and at the same distance from the preset position may be the same, that is, the absolute values ​​of the voltages applied to the first electrodes symmetrical about the center position of the light emitting surface of the light modulator unit are the same, depending on the application requirements of the liquid crystal panel.

[0059] On the basis of any of the above embodiments, in one embodiment of the present application, as shown in FIG10 , the first mode switching state includes a plurality of first sub-states arranged along a first sequence T1. Within the plurality of first sub-states arranged along the first sequence, the absolute value of the voltage on the i-th electrode gradually increases, and the absolute value of the voltage on the j-th electrode gradually decreases, so that when the voltage on each first electrode changes, the change amplitude of the absolute value of the voltage on each first electrode is small. The first sequence is the order in which the plurality of first sub-states appear, so as to avoid the voltage on the first electrode changing too much and causing the deflection of the liquid crystal molecules to be disordered.

[0060] Optionally, in one embodiment of the present application, in the first mode switching state, the voltage on the N first electrodes ranges from -30V to 0V and from 0V to 30V, so that in the first mode switching state, the absolute value of the voltage applied to the N first electrodes can be greater than the maximum value of the absolute value of the voltage applied to the N first electrodes in the first state, but the present application does not limit this, and it depends on the specific situation.

[0061] It should be noted that, in actual operation, the voltage on the first electrode is constantly flipping between positive and negative polarity. In the process of constantly flipping between positive and negative polarity, if the absolute value of the voltage on the first electrode is fixed, the voltage difference between the first electrode and the second electrode layer is the same, and the intensity of the electric field formed between the first electrode and the second electrode layer is the same. At this time, the polarization directions of the liquid crystal molecules are different, but the liquid crystal molecules will not rotate.

[0062] It should also be noted that in multiple first sub-states, if the polarity reversal frequency of the voltage signal on the first electrode is different in different first sub-states, for example, in one first sub-state, the polarity reversal frequency of the voltage signal on the first electrode is f1, and in another first sub-state, the polarity reversal frequency of the voltage signal on the first electrode is f2, if the difference between f1 and f2 is large, it is easy for the liquid crystal molecules to generate different torques during deflection in different first sub-states, thereby making the deflection of the liquid crystal molecules easily uncontrolled, deflecting in different directions, and causing deflection disorder. After the liquid crystal molecules are deflected in different directions, combined with the interaction between adjacent liquid crystal molecules, some liquid crystal molecules may become anxious or fail to flip properly.

[0063] Therefore, in an optional embodiment of the present application, in different first sub-states, the voltage polarity reversal frequency corresponding to different first electrodes in the N first electrodes is the same, thereby reducing the probability of deflection disorder of the liquid crystal molecules during the deflection process. In another embodiment of the present application, the voltage polarity reversal frequency on the first electrodes in the first sub-states gradually decreases, thereby reducing the probability of deflection disorder of the liquid crystal molecules by gradually reducing the voltage polarity reversal frequency on the first electrodes in each first sub-state based on the different voltage polarity reversal frequencies on the first electrodes in each first sub-state. However, this application is not limited to this, and the specific situation will depend on the specific situation.

[0064] It should be noted that, in the first mode switching state, if the absolute value of the voltage on the i-th electrode exceeds the absolute value of the voltage on the j-th electrode for an extended period of time, this may cause a transition in liquid crystal molecule deflection. Therefore, in one embodiment of the present application, the time the liquid crystal panel is in the first mode switching state ranges from 0 to 2 seconds. This is to avoid transitional liquid crystal molecule deflection by accelerating the deflection speed of the liquid crystal molecules and reducing the time differences between different liquid crystal molecules deflecting to the same angle. However, this application does not impose any limitation on this, and the specific application will depend on the circumstances.

[0065] Based on any of the above embodiments, in one embodiment of the present application, the liquid crystal panel includes a third state, and the third state also includes a first transmission state, so that when the display device composed of the liquid crystal panel and the display panel is applied to an application scenario where a two-dimensional display screen is displayed, the liquid crystal panel can transmit the output light of the display panel, so that the display device can realize the display of a two-dimensional display screen.

[0066] As shown in FIG11 , in one embodiment of the present application, in the first transmission state, the voltages on the N first electrodes have the same absolute value, namely, the second preset voltage, so that the liquid crystal molecules at all locations in the liquid crystal panel have the same deflection angle, thereby causing all locations of the liquid crystal panel to modulate the light emitted from the display panel in the same manner, thereby maintaining the transmission state and not affecting the display dimensions of the two-dimensional display image. It should be noted that in this embodiment, the second preset voltage and the first preset voltage can be the same voltage value or different voltage values, and this is not limited in this application and will be determined based on specific circumstances.

[0067] Optionally, in one embodiment of the present application, when the second preset voltage is different from the first preset voltage, the second preset voltage may be less than the first preset voltage. In this embodiment, when the liquid crystal panel switches from the first state to the first transmission state, the liquid crystal panel first switches from the first state to the first mode switching state, and then switches to the first transmission state, but this application does not limit this, and the specific situation may vary.

[0068] It should be noted that in the first mode switching state, in order to increase the deflection speed of the liquid crystal molecules and reduce the response time of the liquid crystal panel, the first preset voltage is relatively large, at least greater than the minimum absolute value of the voltages on the N first electrodes in the first state, such as greater than the maximum absolute value of the voltages on the N first electrodes in the first state. However, when the liquid crystal panel is in the first transmission state, if the absolute value of the voltage on the first electrode is relatively large, the power consumption of the liquid crystal panel will increase. If the absolute value of the voltage on the first electrode is relatively small, the absolute value of the voltage on the first electrode will directly switch from a relatively large value to a relatively small value, which may easily cause the deflection of the liquid crystal molecules to become uncontrolled, resulting in deflection disorder.

[0069] Therefore, in one embodiment of the present application, the third state also includes a second transmission state, as shown in Figure 12. In the second transmission state, the absolute values ​​of the voltages on the N first electrodes are the same, which are all the third preset voltages. The third preset voltage is less than the second preset voltage, so that when the liquid crystal panel is in the transmission state, the absolute value of the voltage on the first electrode is smaller, thereby reducing the power consumption of the liquid crystal panel. At the same time, when the liquid crystal panel switches to the transmission state, it first switches to the first transmission state and then switches to the second transmission state, thereby reducing the probability that the absolute value of the voltage on the first electrode switches directly from a larger value to a smaller value, causing the liquid crystal molecules to produce deflection disorder.

[0070] It should be noted that if the difference between the third preset voltage and the second preset voltage is large, the absolute value of the voltage on the first electrode is directly switched from the second preset voltage to the third preset voltage, which may easily cause the deflection of the liquid crystal molecules to be uncontrolled during the process of switching the liquid crystal panel from the first transmission state to the second transmission state, resulting in deflection disorder.

[0071] Therefore, in an optional embodiment of the present application, the mode switching state also includes a second mode switching state. In the second mode switching state, the absolute value of the voltage on the N first electrodes is less than the second preset voltage and greater than the third preset voltage, so as to further reduce the probability of uncontrolled deflection of liquid crystal molecules and deflection disorder during the process of switching the liquid crystal panel from the first transmission state to the second transmission state.

[0072] Specifically, as shown in Figure 13, the second mode switching state includes multiple second sub-states arranged along a second order, and the second order is the order in which the multiple second sub-states appear. In the multiple second sub-states arranged along the second order T2, the absolute value of the voltage on the N first electrodes gradually decreases, so as to further reduce the probability of uncontrolled deflection of liquid crystal molecules and deflection disorder during the process of switching the liquid crystal panel from the first transmission state to the second transmission state.

[0073] Optionally, in one embodiment of the present application, within a plurality of second sub-states arranged along the second sequence T2, when the absolute values ​​of the voltages on the N first electrodes gradually decrease, the absolute values ​​of the voltages on the N first electrodes can gradually decrease in an equidistant manner, that is, the difference in the absolute values ​​of the voltages applied to the same first electrode in adjacent first sub-states is the same, or can gradually decrease in a manner of gradually increasing the step difference, that is, the difference in the absolute values ​​of the voltages applied to the same first electrode in adjacent first sub-states gradually increases, or can gradually decrease in a manner of gradually decreasing the step difference, that is, the difference in the absolute values ​​of the voltages applied to the same first electrode in adjacent first sub-states gradually decreases. The present application does not limit this. In other embodiments of the present application, within a plurality of second sub-states arranged along the second sequence T2, the absolute values ​​of the voltages on the N first electrodes can also gradually decrease in other regular or irregular manners, depending on the specific circumstances.

[0074] It should be noted that in multiple second sub-states, if the polarity reversal frequency of the voltage signal on the first electrode is different in different second sub-states, for example, in one second sub-state, the polarity reversal frequency of the voltage signal on the first electrode is f3, and in another second sub-state, the polarity reversal frequency of the voltage signal on the first electrode is f4, if the difference between f3 and f4 is large, it is easy for the liquid crystal molecules to generate different torques during deflection in different second sub-states, thereby making the deflection of the liquid crystal molecules easily uncontrolled and deflect in different directions, resulting in deflection disorder. After the liquid crystal molecules deflect in different directions, combined with the interaction between adjacent liquid crystal molecules, some liquid crystal molecules may become anxious or fail to flip properly.

[0075] Therefore, in an optional embodiment of the present application, in different second sub-states, the voltage polarity reversal frequency corresponding to different first electrodes in the N first electrodes is the same, thereby reducing the probability of deflection disorder of the liquid crystal molecules during the deflection process. In another embodiment of the present application, in multiple second sub-states arranged along the second sequence T2, the voltage polarity reversal frequency on the first electrodes in the second sub-states gradually decreases. Therefore, based on the different voltage polarity reversal frequencies on the first electrodes in each second sub-state, the probability of deflection disorder of the liquid crystal molecules is reduced by gradually reducing the voltage polarity reversal frequency on the first electrodes in each second sub-state. However, this application is not limited to this, and the specific situation will depend on the specific situation.

[0076] Based on any of the above embodiments, in one embodiment of the present application, as shown in Figure 14, the liquid crystal panel also includes spacers located between the first substrate and the second substrate and between the liquid crystal molecules, so as to utilize the spacers to support the space between the first substrate and the second substrate to ensure that the liquid crystal panel has a uniform and stable thickness throughout.

[0077] It should be noted that in the liquid crystal panel, although the spacers are transparent, the refractive index of the spacers is a fixed value. When the liquid crystal panel is in different states or the absolute value of the voltage applied to the first electrode is different, the refractive index of the area where the liquid crystal molecules are located is different. Therefore, in the process of switching the liquid crystal panel from the first state to the third state, the spacers are easily visible to the user, affecting the user experience.

[0078] Moreover, as display resolution increases, the area of ​​a single pixel in a display device becomes smaller and smaller. Compared with the size of a single pixel in a display device, the size of a spacer is larger, on the order of 100 microns. Therefore, in a liquid crystal panel, no matter how the placement of the spacer is chosen, the spacer will inevitably be visible to the user.

[0079] Specifically, in the process of switching the liquid crystal panel from the first state to the third state, such as when the liquid crystal panel is in the first mode switching state, as the liquid crystal molecules are deflected, the equivalent refractive index of the liquid crystal molecules in the liquid crystal panel is constantly changing. When the difference between the equivalent refractive index of the liquid crystal molecules and the refractive index of the spacers is large, the modulation effects of the liquid crystal molecules and the spacers on the incident light will be different, and therefore, the spacers will be visible to the user.

[0080] In addition, when the liquid crystal panel is in a transmissive state, although the equivalent refractive index of the liquid crystal molecules is a fixed value, if the equivalent refractive index of the liquid crystal molecules is different from the refractive index of the spacers, the modulation effects of the liquid crystal molecules and the spacers on the incident light will also be different, and the spacers may be visible to the user.

[0081] In an embodiment of the present application, in the first mode switching state, the absolute value of the voltage of at least one first electrode is greater than the absolute value of the voltage of at least one first electrode in the first state, thereby accelerating the deflection speed of at least part of the liquid crystal molecules by applying a transition voltage to at least one first electrode in the first mode switching state, thereby shortening the time when the liquid crystal panel is in the first mode switching state, and further reducing the probability that the gaps are visible to the user when the liquid crystal panel is in the first mode switching state.

[0082] Optionally, in one embodiment of the present application, in the second transmission state, the difference between the equivalent refractive index of the liquid crystal molecules in the liquid crystal panel and the preset refractive index is within a preset difference range, wherein the preset refractive index is related to the refractive index of the spacers, so that when the liquid crystal panel is in the second transmission state, the difference between the equivalent refractive index of the liquid crystal molecules in the liquid crystal panel and the refractive index of the spacers is smaller, thereby reducing the probability that the spacers are visible to the user when the liquid crystal panel is in the second transmission state.

[0083] Specifically, in one embodiment of the present application, the preset refractive index is the refractive index of the spacer, so as to further eliminate the phenomenon that the spacer is visible to the user. This is not limited in this application. In another embodiment of the present application, the preset refractive index can also be the equivalent refractive index of the spacer and the liquid crystal molecules located in the preset area around the spacer, that is, the preset refractive index is the equivalent refractive index of the area formed by the spacer and the liquid crystal molecules rotating in different directions around the spacer, depending on the specific situation. It should be noted that when the preset refractive index is the equivalent refractive index of the spacer and the liquid crystal molecules located in the preset area around the spacer, the specific value of the preset refractive index can be determined by experiment, and this application will not elaborate on this.

[0084] Accordingly, an embodiment of the present application further provides a display device, as shown in FIG15 , comprising a display panel 100 and a liquid crystal panel 200 located on the display side of the display panel 100. The liquid crystal panel 200 may be any of the liquid crystal panels provided in any of the above embodiments. Optionally, in one embodiment of the present application, the liquid crystal panel 200 is secured to the display side of the display panel 100 by adhesive 300 . Specifically, the adhesive may be optical adhesive, but this is not limited to this in the present application and may be used as appropriate.

[0085] Specifically, in one embodiment of the present application, as shown in FIG16 , the display panel includes a plurality of pixel rows arranged along a first direction X, and each pixel row includes a plurality of pixels 70 arranged along a second direction Y, wherein the first direction X is perpendicular to the second direction Y, and the second direction Y is parallel to the direction of the line connecting the two eyes of a user viewing the display device; in this embodiment, as shown in FIG17 , the angle between the extension direction W of the first electrode 41 in the liquid crystal panel and the first direction X is greater than 0° and less than 90°.

[0086] In specific applications, the liquid crystal prism formed by the liquid crystal molecules in the liquid crystal panel will cover multiple pixels of the display panel. Within a small display area, the light emitted by the display area at different viewing angles (referred to as the first light) is the same. The second light formed by the first light passing through the liquid crystal prism emits different light at different viewing angles in space. At any specific angle, the user can only see the light emitted by the next sub-pixel of this liquid crystal prism. Therefore, the light emitted by the display panel needs to be defined in the three-dimensional display state. Because the liquid crystal prism formed by the liquid crystal molecules is a cylindrical prism, this effect can only act in the first direction and has no effect in the second direction. As a result, the equivalent resolution of the display effect of the display screen presented by the liquid crystal panel is particularly wide horizontally and relatively small vertically, causing the display screen to be distorted.

[0087] In the embodiment of the present application, the angle between the extension direction of the first electrode in the liquid crystal panel and the first direction is greater than 0° and less than 90°, which can adjust the equivalent resolution ratio in the first direction and the second direction in the three-dimensional display state, making the display picture better looking and improving the user experience.

[0088] It should be noted that in this embodiment, when the display device is applied to an application scenario of a three-dimensional display screen, the liquid crystal panel is in a liquid crystal prism mode state, so that the liquid crystal prism formed by the liquid crystal molecules in the liquid crystal panel is used to modulate the light emitted from the display surface of the display panel to realize the display of a three-dimensional display screen; when the display device is applied to an application scenario of a two-dimensional display screen, the liquid crystal panel is in a transmission state, so that the liquid crystal panel can transmit the light emitted from the display surface of the display panel, so that the display device realizes the display of a two-dimensional display screen.

[0089] It should also be noted that when the display device is used in a three-dimensional display scenario, the first electrode in each light modulation unit in the liquid crystal panel needs to form a specific voltage distribution to drive the orientation of the liquid crystal molecules to form a specific distribution, equivalent to achieving a prism-like light convergence effect. Therefore, when the display device is used in a three-dimensional display scenario, the liquid crystal panel is in a liquid crystal prism mode. When the display device is used in a two-dimensional display scenario, the same voltage is applied to each first electrode in the liquid crystal panel. At this time, the deflection angles of the liquid crystal molecules in the liquid crystal panel are the same, and no prism-like focusing effect is formed.

[0090] In addition, when the display device is used in a scenario where a three-dimensional display image is displayed, the display device has high requirements on the curvature of the liquid crystal prism formed by the liquid crystal molecules, thereby requiring the thickness of the liquid crystal panel to be larger, for example, the thickness of the liquid crystal panel can reach 100 microns, so that the electric field strength between the first electrode and the second electrode in the liquid crystal panel is relatively small, resulting in the liquid crystal molecules rotating more slowly when the liquid crystal panel switches between different states, resulting in a long response time when the liquid crystal panel switches between different states, and the gaps are visible to the user.

[0091] In an embodiment of the present application, when the liquid crystal panel switches from a transmission state to a liquid crystal prism mode state, the electric field strength between the first electrode and the second electrode can be increased by increasing the voltage on the first electrode, thereby shortening the response time of the liquid crystal panel switching from the transmission state to the liquid crystal prism mode state, and reducing the probability of the gaps being visible to the user during the process of the liquid crystal panel switching from the transmission state to the liquid crystal prism mode state.

[0092] When the liquid crystal panel switches from the liquid crystal prism mode state to the transmission state, the embodiment of the present application no longer adopts the power-off method and relies on the liquid crystal alignment force to achieve it. Instead, it actively applies voltage to the first electrode to allow the liquid crystal molecules to actively deflect to the same deflection angle, and sets the absolute value of the voltage of at least one first electrode in the first state to be smaller than the absolute value of the voltage of at least one first electrode in the second state, so as to set the absolute value of the voltage of at least one first electrode in the second state to be larger, thereby increasing the deflection speed of at least part of the liquid crystal molecules during the switching of the liquid crystal panel from the liquid crystal prism state to other states, thereby shortening the response time of the liquid crystal panel and reducing the phenomenon that the gaps are visible to the user.

[0093] It should be noted that in the above embodiment, the voltage of the second electrode layer is a fixed value, which can be the voltage value of the common voltage in the display panel, so as to reduce the difficulty of controlling the voltage on the second electrode layer, and at the same time multiplex the common voltage signal in the display panel to simplify the structure of the display device.

[0094] Specifically, in one embodiment of the present application, when the liquid crystal panel is in the first mode switching state, the absolute value of the voltage applied to each first electrode is the same, as shown in Figure 5, which is the first preset voltage V1. As shown in Figure 18, in this embodiment, when the display screen of the display device switches from a three-dimensional display screen to a two-dimensional display screen, that is, when the display device switches from a three-dimensional display mode to a two-dimensional display mode, the liquid crystal panel can be switched from the liquid crystal prism mode state to the first mode switching state, so as to use high voltage (first preset voltage V1) to drive the liquid crystal molecules to flip uniformly to a specific large angle. At this time, the equivalent refractive index n of the liquid crystal is between no and ne, and is likely to be in no (high voltage state, the liquid crystal is completely upright), where no is the equivalent refractive index of the liquid crystal panel when it is in the transmission state, and ne is the equivalent refractive index of the liquid crystal panel when it is in the liquid crystal prism mode state, no>ns. In this state, the display device presents a two-dimensional display screen, but there may be a problem of visible gaps; then, the liquid crystal panel is switched from the first mode switching state to the second transmission state once or multiple times to reduce the absolute value of the voltage on each first electrode in the liquid crystal panel, reduce the power consumption of the liquid crystal panel, and at the same time make the difference between the equivalent refractive index of the liquid crystal panel and the refractive index of the gaps (or preset refractive index) smaller, further eliminating the phenomenon of visible gaps.

[0095] It should be noted that, based on the above embodiments, in one embodiment of the present application, when the liquid crystal panel is in the liquid crystal prism mode, the voltage polarity reversal frequency on the first electrode can be 100HZ, and when the liquid crystal panel is in the first switching mode, the voltage polarity reversal frequency on the first electrode can be greater than 100HZ. The liquid crystal panel switches from the first mode switching state to the second transmission state in multiple times, and the voltage polarity reversal frequency on the first electrode can be gradually reduced. The present application does not limit this, and it depends on the specific circumstances.

[0096] In another embodiment of the present application, when the liquid crystal panel is in the first mode switching state, the absolute values ​​of the voltages applied to the first electrodes are not exactly the same. In this embodiment, as shown in FIG19 , in this embodiment, when the display screen of the display device switches from a three-dimensional display screen to a two-dimensional display screen, that is, when the display device switches from a three-dimensional display mode to a two-dimensional display mode, the liquid crystal panel can be first switched from the liquid crystal prism mode state to the first mode switching state, specifically, a larger voltage is applied to the first electrode with a smaller voltage applied in the first state (such as the first electrode that is closer to the center of the light emitting surface of the light modulation unit), and a larger voltage is applied to the first electrode with a larger voltage applied in the first state (such as the first electrode that is closer to the center of the light emitting surface of the light modulation unit). A smaller voltage is applied to the first electrode with a farther center distance, so that the deflection speed of the liquid crystal molecules in the liquid crystal panel whose current deflection angle has a larger difference with the target deflection angle is faster, and the deflection speed of the liquid crystal molecules whose current deflection angle has a smaller difference with the target deflection angle is slower, thereby shortening the time for the liquid crystal molecules to deflect to the target deflection angle, improving the response speed of the liquid crystal panel, reducing the difference in the time length for the liquid crystal molecules corresponding to different first electrodes to deflect to the target deflection angle, and when each liquid crystal molecule deflects to the target deflection angle or is about to deflect to the target deflection angle, controlling the liquid crystal panel to switch from the first mode switching state to the transmission state, applying the same voltage to each first electrode, so that the liquid crystal molecules have the same deflection angle and are in the transmission state.

[0097] It should be noted that, in the above embodiment, the duration of the first mode switching state should not be too long, so as to avoid excessive deflection of the liquid crystal molecules in the liquid crystal panel and increase the total time it takes for the liquid crystal molecules to finally deflect to the same angle.

[0098] In summary, in the liquid crystal panel and the display device including the liquid crystal panel provided in the embodiments of the present application, the liquid crystal panel includes at least a first state and a second state, the first state includes a liquid crystal prism mode state, the second state includes a mode switching state, and the absolute value of the voltage of at least one first electrode in the first state is smaller than the absolute value of the voltage of at least one first electrode in the second state. Therefore, by setting the absolute value of the voltage of at least one first electrode in the second state to be larger, the deflection speed of at least part of the liquid crystal molecules in the process of switching the liquid crystal panel from the liquid crystal prism state to other states is increased, thereby shortening the response time of the liquid crystal panel and improving the user experience.

[0099] In addition, an embodiment of the present application further provides a control method, which is applied to the liquid crystal panel provided by any of the above embodiments. Specifically, in this embodiment, the control method includes: when the liquid crystal panel is in a second state, controlling the absolute value of the voltage of at least one first electrode in the second state to be greater than the absolute value of the voltage of at least one first electrode in the first state. The first state includes a liquid crystal prism mode state, and the second state includes a mode switching state. By setting the absolute value of the voltage of at least one first electrode in the second state to be greater, the deflection speed of at least some liquid crystal molecules in the liquid crystal panel during the switching process from the liquid crystal prism state to other states is increased, thereby shortening the response time of the liquid crystal panel and improving the user experience.

[0100] Optionally, in one embodiment of the present application, the control method further includes: providing a fixed voltage to the second electrode layer to form an electric field between the second electrode layer and the first electrode to control the deflection of the liquid crystal molecules. Specifically, in one embodiment of the present application, the voltage on the second electrode layer can be a common voltage in the display panel, but this application is not limited to this and the specific situation will determine it.

[0101] On the basis of any of the above embodiments, in one embodiment of the present application, the mode switching state includes a first mode switching state, and when the liquid crystal panel is in the second state, controlling the absolute value of the voltage of at least one first electrode in the second state to be greater than the absolute value of the voltage of at least one first electrode in the first state includes: in the first mode switching state, controlling the absolute values ​​of the voltages applied to the N first electrodes to be the same, all being first preset voltages, and the first preset voltage being greater than the minimum value of the absolute values ​​of the voltages on the N first electrodes in the first state, thereby shortening the response time of the liquid crystal panel by applying the same voltage to the N first electrodes, and reducing the difficulty of controlling the voltages applied to the N first electrodes.

[0102] In another embodiment of the present application, when the liquid crystal panel is in the first mode switching state, the absolute values ​​of the voltages applied to the first electrodes are not exactly the same. By differentially setting the absolute values ​​of the voltages applied to the first electrodes when the liquid crystal panel is in the first mode switching state, the difference in time required for the liquid crystal molecules corresponding to the areas where the first electrodes are located to reach the same deflection angle is reduced, thereby reducing power consumption while shortening the response time of the liquid crystal panel.

[0103] Specifically, in one embodiment of the present application, the mode switching state includes a first mode switching state, and the N first electrodes include an i-th electrode and a j-th electrode. In this embodiment, when the liquid crystal panel is in the second state, controlling the absolute value of the voltage of at least one first electrode in the second state to be greater than the absolute value of the voltage of at least one first electrode in the first state includes: in the first mode switching state, controlling the absolute value of the voltage on the i-th electrode to be greater than the absolute value of the voltage on the j-th electrode; in the first state, controlling the absolute value of the voltage on the i-th electrode to be less than the absolute value of the voltage on the j-th electrode, so that in the first mode switching state, a larger voltage is applied to the first electrode to which a smaller voltage is applied when in the first state, and a smaller voltage is applied to the first electrode to which a larger voltage is applied when in the first state, thereby shortening the time difference when the liquid crystal molecules corresponding to the first electrodes are deflected to the same angle, thereby reducing power consumption.

[0104] Based on any of the above embodiments, in one embodiment of the present application, the liquid crystal panel includes a third state, which includes a first transmission state and a second transmission state, so that the display device using the liquid crystal panel can display a two-dimensional display image. In this embodiment, the method further includes:

[0105] In the first transmission state, the absolute values ​​of the voltages on the N first electrodes are controlled to be the same, all being a second preset voltage, so that the liquid crystal molecules at all locations in the liquid crystal panel have the same deflection angle, thereby causing all locations of the liquid crystal panel to have the same modulation effect on the light emitted from the display panel, thereby being in a transmission state and not affecting the display of the two-dimensional display image. It should be noted that the second preset voltage may be the same as or different from the first preset voltage;

[0106] In the second transmission state, the absolute values ​​of the voltages on the N first electrodes are controlled to be the same, all being a third preset voltage, which is smaller than the second preset voltage, so that when the liquid crystal panel is in the transmission state, the absolute value of the voltage on the first electrode is smaller, thereby reducing the power consumption of the liquid crystal panel.

[0107] On the basis of the above embodiments, in one embodiment of the present application, the mode switching state also includes a second mode switching state; the second mode switching state includes multiple second sub-states arranged along a second sequence, and the second sequence is the order in which the multiple second sub-states appear. In this embodiment, the control method also includes: controlling the absolute value of the voltage on the N first electrodes to gradually decrease within the multiple second sub-states arranged along the second sequence; wherein, in the second mode switching state, the absolute value of the voltage on the N first electrodes is less than the second preset voltage and greater than the third preset voltage, so as to reduce the probability of uncontrolled deflection of the liquid crystal molecules and deflection disorder during the process of the liquid crystal panel switching from the first transmission state to the second transmission state.

[0108] As can be seen from the above, the control method provided in the embodiment of the present application can control the liquid crystal panel to switch between different states, and the process time of switching between different states is short, the response speed is fast, and the user experience is high.

[0109] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on the differences from other embodiments, and reference can be made to the common and similar parts between the various embodiments. The methods disclosed in the embodiments are described briefly because they correspond to the devices disclosed in the embodiments. For relevant details, refer to the method description.

[0110] It should be noted that throughout the description of this application, it should be understood that the drawings and descriptions of the embodiments are illustrative rather than restrictive. Like reference numerals throughout the embodiments identify like structures. Furthermore, for ease of understanding and description, the drawings may exaggerate the thickness of some layers, films, panels, regions, and the like.

[0111] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid crystal panel, comprising a first substrate and a second substrate disposed opposite to each other, liquid crystal molecules located between the first substrate and the second substrate, a first electrode layer located on a side of the first substrate facing the second substrate, and a second electrode layer located on a side of the second substrate facing the first substrate, wherein: The first electrode layer includes at least one electrode unit, and the electrode unit includes N first electrodes, where N is an integer greater than 1; The liquid crystal panel includes at least a first state and a second state, the first state includes a liquid crystal prism mode state, the second state includes a mode switching state, and the absolute value of the voltage of at least one of the first electrodes in the first state is smaller than the absolute value of the voltage of at least one of the first electrodes in the second state.

2. The liquid crystal panel according to claim 1, wherein The mode switching state includes a first mode switching state. In the first mode switching state, the absolute values ​​of the voltages applied to the N first electrodes are the same, all being first preset voltages, and the first preset voltage is greater than the minimum value of the absolute values ​​of the voltages on the N first electrodes in the first state.

3. The liquid crystal panel according to claim 2, wherein: The first preset voltage is greater than k1 times the minimum absolute value of the voltages on the N first electrodes in the first state, or the first preset voltage is greater than 1 / k2 of the maximum absolute value of the voltages on the N first electrodes in the first state.

4. The liquid crystal panel according to claim 2, wherein: The first preset voltage is not less than the maximum absolute value of the voltages on the N first electrodes in the first state.

5. The liquid crystal panel according to claim 1, wherein The mode switching state includes a first mode switching state, the N first electrodes include an i-th electrode and a j-th electrode, in the first state, the absolute value of the voltage on the i-th electrode is smaller than the absolute value of the voltage on the j-th electrode, and in the first mode switching state, the absolute value of the voltage on the i-th electrode is greater than the absolute value of the voltage on the j-th electrode.

6. The liquid crystal panel according to claim 5, wherein: In the first state, the maximum absolute value of the voltage on the N first electrodes is a first voltage value. In the first mode switching state, the maximum absolute value of the voltage on the N first electrodes is a second voltage value, and the second voltage value is not less than the first voltage value.

7. The liquid crystal panel according to claim 5, wherein: The liquid crystal panel includes multiple light modulator units. In the first state, one light modulator unit corresponds to one liquid crystal prism. The i-th electrode and the j-th electrode are located in the same light modulator unit, and in a plane parallel to the liquid crystal panel, the i-th electrode has a first distance from the center position of the light emitting surface of the light modulator unit, and the j-th electrode has a second distance from the center position of the light emitting surface of the light modulator unit, and the first distance is smaller than the second distance.

8. The liquid crystal panel according to claim 7, wherein: In a plane parallel to the liquid crystal panel, in the same light modulator unit, the absolute values ​​of the voltages corresponding to the first electrodes located on different sides of a preset position of the light modulator unit and at the same distance from the preset position are different; wherein the preset position is the center position of the light emitting surface of the light modulator unit.

9. The liquid crystal panel according to claim 5, wherein: The first mode switching state includes multiple first sub-states arranged along a first order. Within the multiple first sub-states arranged along the first order, the absolute value of the voltage on the i-th electrode gradually increases, and the absolute value of the voltage on the j-th electrode gradually decreases. The first order is the order in which the multiple first sub-states appear.

10. The liquid crystal panel according to claim 9, wherein In the first mode switching state, the voltage on the N first electrodes ranges from -30V to 0V and from 0V to 30V, and in different first sub-states, the voltage polarity reversal frequency corresponding to different first electrodes among the N first electrodes is the same.

11. The liquid crystal panel according to claim 5, wherein The time that the liquid crystal panel is in the first mode switching state ranges from 0 to 2 seconds.

12. The liquid crystal panel according to claim 1, wherein The liquid crystal panel includes a third state, and the third state includes a first transmission state. In the first transmission state, the absolute values ​​of the voltages on the N first electrodes are the same, which are all second preset voltages.

13. The liquid crystal panel according to claim 12, wherein: The third state further includes a second transmission state. In the second transmission state, the absolute values ​​of the voltages on the N first electrodes are the same, which are all third preset voltages, and the third preset voltage is lower than the second preset voltage.

14. The liquid crystal panel according to claim 13, wherein: The mode switching state also includes a second mode switching state; In the second mode switching state, the absolute value of the voltage on the N first electrodes is smaller than the second preset voltage and larger than the third preset voltage.

15. The liquid crystal panel according to claim 14, wherein: The second mode switching state includes multiple second sub-states arranged along a second sequence. Within the multiple second sub-states arranged along the second sequence, the absolute values ​​of the voltages on the N first electrodes gradually decrease. The second sequence is the order in which the multiple second sub-states appear.

16. The liquid crystal panel according to claim 15, wherein: In different second sub-states, the voltage polarity reversal frequencies corresponding to different first electrodes among the N first electrodes are the same.

17. The liquid crystal panel according to claim 13, wherein: The liquid crystal panel also includes spacers located between the first substrate and the second substrate and in the liquid crystal molecules. In the second transmission state, the difference between the equivalent refractive index of the liquid crystal molecules in the liquid crystal panel and the preset refractive index is within a preset difference range, and the preset refractive index is related to the refractive index of the spacers.

18. The liquid crystal panel according to claim 17, wherein: The preset refractive index is the refractive index of the spacer.

19. The liquid crystal panel according to claim 17, wherein: The preset refractive index is an equivalent refractive index of the spacer and the liquid crystal molecules located in a preset area around the spacer.

20. A display device comprising a display panel and a liquid crystal panel located on a display side of the display panel, wherein the liquid crystal panel is the liquid crystal panel according to any one of claims 1 to 19.

21. A control method, applied to the liquid crystal panel according to any one of claims 1 to 19, the control method comprising: When the liquid crystal panel is in a second state, the absolute value of the voltage of at least one first electrode in the second state is controlled to be greater than the absolute value of the voltage of at least one first electrode in the first state, wherein the first state includes a liquid crystal prism mode state and the second state includes a mode switching state.

22. The control method according to claim 21, wherein: The mode switching state includes a first mode switching state, and when the liquid crystal panel is in a second state, controlling the absolute value of the voltage of at least one first electrode in the second state to be greater than the absolute value of the voltage of at least one first electrode in the first state includes: In the first mode switching state, the absolute values ​​of the voltages applied to the N first electrodes are controlled to be the same, which are all first preset voltages, and the first preset voltage is greater than the minimum absolute value of the voltages on the N first electrodes in the first state.

23. The control method according to claim 21, wherein: The mode switching state includes a first mode switching state, the N first electrodes include an i-th electrode and a j-th electrode, and when the liquid crystal panel is in a second state, controlling the absolute value of the voltage of at least one first electrode in the second state to be greater than the absolute value of the voltage of at least one first electrode in the first state includes: In the first mode switching state, the absolute value of the voltage on the i-th electrode is controlled to be greater than the absolute value of the voltage on the j-th electrode; in the first state, the absolute value of the voltage on the i-th electrode is less than the absolute value of the voltage on the j-th electrode.

24. The control method according to claim 21, wherein: The liquid crystal panel includes a third state, the third state including a first transmission state and a second transmission state, and the method further includes: In the first transmission state, controlling the absolute values ​​of the voltages on the N first electrodes to be the same, all being a second preset voltage; In the second transmission state, the absolute values ​​of the voltages on the N first electrodes are controlled to be the same, that is, a third preset voltage, which is lower than the second preset voltage.

25. The control method according to claim 24, characterized in that: The mode switching state further includes a second mode switching state; the second mode switching state includes a plurality of second sub-states arranged along a second sequence, and the second sequence is the order in which the plurality of second sub-states appear; The control method further includes: Controlling within a plurality of second sub-states arranged along a second sequence, the absolute values ​​of the voltages on the N first electrodes gradually decrease; Wherein, in the second mode switching state, the absolute value of the voltage on the N first electrodes is smaller than the second preset voltage and larger than the third preset voltage.

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