Driving circuit, display device comprising driving circuit, and display method

Abstract

Disclosed are a driving circuit, a display device comprising the driving circuit, and a display method. The driving circuit may respectively control two H-bridge circuits (31, 32) by means of high-level and low-level signals (VH, VL) in a control signal, such that the two H-bridge circuits (31, 32) serve as a driving circuit to respectively output a co-polarization signal and a cross-polarization signal to a light valve. The driving circuit not only solves the problems in the related art of delays, system instability, etc., caused by a DAC itself and a multi-stage amplification circuit, but also effectively reduces the circuit cost. The driving circuit further uses an anti-backflow element to avoid the risk of abnormal operation of the circuit caused by a current in the first H-bridge circuit (31) flowing into the second H-bridge circuit (32) when the control signal is the high-level signal (VH), such that the driving circuit achieves the effect of stable operation.

Description

Driving circuit, display device including the driving circuit, and display method Technical Field

[0001] The present application relates to the field of display, and in particular to a driving circuit, a display device including the driving circuit, and a display method. Background Art

[0002] Figure 1 shows a passive polarization VR display device, typically including a display screen and related devices such as two liquid crystal light valves. When playing the left-eye image, the display device controls the polarization direction of the liquid crystal in liquid crystal light valve A to be the same as that of the left lens of the glasses. This polarization direction is perpendicular to that of the right lens, ensuring that the left eye can clearly see the image while the right eye cannot see it. When playing the right-eye image, the operating state is opposite to that of the left eye. The polarization direction of the liquid crystal in liquid crystal light valve B is the same as that of the right lens of the glasses. This polarization direction is perpendicular to that of the left lens, ensuring that the right eye can clearly see the image while the left eye cannot see it. This allows the left and right eyes to see different images, creating a 3D effect.

[0003] At the same time, the VR display device can also realize the screen touch function, and the observer can adjust the picture through the screen touch to observe the 3D effect at different angles. At present, the relevant technology generally adopts a microcontroller unit (MCU) to control the digital to analog converter (DAC) to output different voltage value signals to drive the polarization of the two light valves. Since the voltage value output by the DAC is small and the driving ability is weak, it is impossible to effectively drive the light valve. Therefore, it is usually necessary to use a multi-stage amplification method to increase the voltage value in order to effectively drive the light valve. However, the amplification process of each stage of the DAC will cause signal delay in the MCU, thereby affecting the use effect of the VR display device.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide a driving circuit, a display device including the driving circuit, and a display method, which can improve the response speed of a light valve to a control signal output by a processor and the stability of the system.

[0006] In a first aspect, an embodiment of the present application provides a driving circuit comprising: a first H-bridge circuit, a second H-bridge circuit, and an anti-backflow element; wherein the anti-backflow element is disposed between the first H-bridge circuit and the second H-bridge circuit, a first control signal input terminal of the first H-bridge circuit and a second control signal input terminal of the second H-bridge circuit are respectively connected to a processor, and a first voltage output terminal of the first H-bridge circuit and a second voltage output terminal of the second H-bridge circuit are respectively connected to a light valve;

[0007] The processor is used to output a control signal;

[0008] The first H-bridge circuit is configured to, when the first control signal input end receives a high-level control signal, conduct the first H-bridge circuit, and output a co-directional polarization signal to the light valve at the first voltage output end, so that the light valve performs co-directional polarization motion;

[0009] The second H-bridge circuit is configured to, when the second control signal input terminal receives a low-level control signal, conduct the second H-bridge circuit, and output a vertically polarized signal to the light valve at the second voltage output terminal, so as to cause the light valve to perform vertically polarized motion; wherein a voltage value corresponding to the co-directional polarized signal is greater than a voltage value corresponding to the vertically polarized signal;

[0010] Control signal input terminal The anti-backflow element is used to prevent the current in the first H-bridge circuit from flowing into the second H-bridge circuit when the control signal is a high-level signal.

[0011] In a second aspect, an embodiment of the present application provides a display device comprising a plurality of the above-mentioned drive circuits, wherein the plurality of drive circuits include: a first drive circuit and a second drive circuit, and the display device further includes: a display screen, a processor, a first light valve, a second light valve, and virtual reality (VR) glasses; a control signal input terminal of the first drive circuit and a control signal input terminal of the second drive circuit are respectively connected to the processor, a voltage output terminal of the first drive circuit is connected to the first light valve, and a voltage output terminal of the second drive circuit is connected to the second light valve; wherein,

[0012] The display screen is used to generate a target image frame based on the file to be played;

[0013] The processor is configured to determine a first control signal and a second control signal corresponding to the target image frame based on configuration information of the target image frame;

[0014] The first driving circuit is configured to drive the first light valve to perform polarization movement based on a first control signal corresponding to the target image frame;

[0015] The second driving circuit is configured to drive the second light valve to perform polarization movement based on a second control signal corresponding to the target image frame;

[0016] The VR glasses are used to display virtual reality information corresponding to the target image frame based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve. In a third aspect, an embodiment of the present application provides a display method, which is used for the above-mentioned display device, and the method includes:

[0017] generating a target image frame based on the file to be played by the display screen;

[0018] determining, by the processor, a first control signal and a second control signal corresponding to the target image frame based on configuration information of the target image frame;

[0019] driving the first light valve to perform polarization movement based on a first control signal corresponding to the target image frame by the first driving circuit; and driving the second light valve to perform polarization movement based on a second control signal corresponding to the target image frame by the second driving circuit;

[0020] Virtual reality information corresponding to the target image frame is displayed through the VR glasses based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

[0021] In a fourth aspect, an embodiment of the present application provides a display device, which is used in the above-mentioned display device, and includes:

[0022] An image frame generating module, configured to generate a target image frame based on the file to be played via the display screen;

[0023] a signal processing module, configured to determine, by the processor, a first control signal and a second control signal corresponding to the target image frame based on configuration information of the target image frame; drive, by the first driving circuit, the first light valve to perform polarization movement based on the first control signal corresponding to the target image frame; and drive, by the second driving circuit, the second light valve to perform polarization movement based on the second control signal corresponding to the target image frame;

[0024] A virtual reality information display module is used to display virtual reality information corresponding to the target image frame through the VR glasses based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

[0025] In a fifth aspect, an embodiment of the present application provides a computer storage medium, which stores a plurality of instructions suitable for being loaded by a processor and executing the above-mentioned method steps.

[0026] The beneficial effects of the technical solutions provided by some embodiments of the present application include at least:

[0027] The embodiment of the present application can control the dual H-bridge circuit respectively through the high and low level signals in a control signal, so that the dual H-bridge circuit acts as a driving circuit to output the same polarization signal and the vertical polarization signal to the light valve respectively. Compared with the driving method of MCU+DAC in the related art, the driving circuit in the embodiment of the present application can directly set the voltage value corresponding to the same polarization signal and the voltage value corresponding to the vertical polarization signal according to the demand, and control the operation of the corresponding H-bridge circuit according to the high and low levels in the control signal to output the corresponding polarization signal. This not only solves the problems of delay and system instability caused by the DAC itself and the multi-stage amplification circuit, but also effectively reduces the circuit cost. In addition, the embodiment of the present application also adopts an anti-backflow element to prevent the risk of abnormal circuit operation caused by the current in the first H-bridge circuit flowing into the second H-bridge circuit when the control signal is a high level signal, so that the driving circuit can achieve a stable operation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] FIG1 is a schematic diagram of a passive polarization VR display device in the related art;

[0030] FIG2 is a schematic diagram showing the connection relationship between a dual H-bridge circuit, a processor, and a light valve provided in an embodiment of the present application;

[0031] FIG3A is a schematic diagram of the internal structure of a dual H-bridge circuit provided in an embodiment of the present application;

[0032] FIG3B is a schematic diagram of the circuit operation of loop 1 in the first H-bridge circuit provided in an embodiment of the present application;

[0033] FIG3C is a schematic diagram of the circuit operation of loop 2 in the first H-bridge circuit provided in an embodiment of the present application;

[0034] FIG4 is a schematic diagram showing the corresponding relationship between the control signal and the drive signal provided in an embodiment of the present application;

[0035] FIG5 is a schematic diagram of the internal structure of a display device provided in an embodiment of the present application;

[0036] FIG6 is a schematic diagram of the internal structure of two dual H-bridge circuits in a display device provided by an embodiment of the present application;

[0037] FIG7 is a schematic diagram of a voltage selection circuit in a display device provided in an embodiment of the present application;

[0038] FIG8 is a schematic flow chart of a display method of a display device provided in an embodiment of the present application;

[0039] FIG9 is a schematic diagram of the internal structure of another display device provided in an embodiment of the present application;

[0040] FIG10 is a schematic structural diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of systems and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0042] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0043] Virtual reality display technology utilizes visual differences between the left and right eyes. Specifically, it utilizes the visual information from the left and right eyes, which is then superimposed and regenerated in the brain. This creates a three-dimensional image with front-to-back, top-to-bottom, left-to-right, and near-to-far effects. Passive polarization VR displays generally work as follows: The display screen of the display device loops the images for the left and right eyes. The viewer wears three-dimensional (3D) glasses with polarizing films in the lenses. The left and right lenses of the 3D glasses have polarized lenses with different polarization directions. These lenses are polarized with perpendicular polarizers: one horizontal polarizer and one vertical polarizer. The main reason for the three-dimensional effect is that the left and right eyes see different images. The different positions of the left and right eyes lead to slight differences in the images. To capture a stereoscopic image, two lenses are used, one on the left and one on the right. The image from the left lens is filtered through a transverse polarizer to produce horizontally polarized light, while the image from the right lens is filtered through a longitudinal polarizer to produce longitudinally polarized light. The 3D glasses have transverse and longitudinal polarizers for the left and right eyes, respectively. Transversely polarized light can only pass through the transverse polarizer, while longitudinally polarized light can only pass through the longitudinal polarizer. This ensures that what is photographed by the left camera can only enter the left eye, and what is photographed by the right camera can only enter the right eye.

[0044] In summary, passive polarization VR display devices (hereinafter referred to as VR devices) typically use an MCU to control the DAC to output different voltage signals to drive the light valves to achieve different polarization modes. However, the voltage signals output by the MCU when controlling the DAC are all positive. To ensure that the corresponding light valves can be driven in both positive and negative directions, the DAC output voltage signals need to be amplified (often twice) to obtain signals with different polarities and strong driving capabilities. Furthermore, with increasing demand for use, VR devices are now compatible with touch screens, allowing viewers to directly adjust the image by touching the screen, thereby observing different 3D viewing angles. With the inclusion of touch functions in VR devices, due to the inherent characteristics of the DAC and the multi-stage amplification process, these VR display devices may experience signal delays during driving, which directly affects the image display of the VR device. Therefore, it is necessary to first change the display time of each frame to eliminate the impact of signal delay. However, the above-mentioned MCU+DAC driving architecture cannot adjust or eliminate the delay effect of touch feedback, which greatly affects the user experience of the VR device. The embodiments of the present application provide a driving circuit, a display device including the driving circuit, and a related display method to solve the above-mentioned technical problems, thereby achieving the purpose of improving the control signal response speed, the operating efficiency and stability of the display device, and reducing the cost of the device.

[0045] Figure 2 shows a schematic diagram of the connection structure of the driving circuit, the processor, and the light valve provided in an embodiment of the present application. The driving circuit may include: a first H-bridge circuit, a second H-bridge circuit, and an anti-backflow element.

[0046] Among them, the anti-backflow element is arranged between the first H-bridge circuit and the second H-bridge circuit, the first control signal input end of the first H-bridge circuit and the second control signal input end of the second H-bridge circuit are respectively connected to the processor, and the first voltage output end of the first H-bridge circuit and the second voltage output end of the second H-bridge circuit are respectively connected to the light valve.

[0047] Specifically, the processor is configured to output a control signal. When a high-level control signal is received at a first control signal input terminal, the first H-bridge circuit is configured to conduct and operate, and the first voltage output terminal is configured to output a co-directional polarization signal to the light valve, thereby causing the light valve to move in the same direction. When a low-level control signal is received at a second control signal input terminal, the second H-bridge circuit is configured to conduct and operate, and the second voltage output terminal is configured to output a vertically polarized signal to the light valve, thereby causing the light valve to move in the vertical direction. The anti-backflow element is configured to prevent current in the first H-bridge circuit from flowing into the second H-bridge circuit when the control signal is a high-level signal. The voltage value corresponding to the co-directional polarization signal is greater than the voltage value corresponding to the vertically polarized signal.

[0048] It is understood that, based on the characteristics of the light valve, embodiments of the present application can predefine two H-bridge circuits with different voltage values ​​to respectively control the light valve to perform two different types of motion. Specifically, a correspondence between the two voltage values ​​and high and low levels can be set. For example, a high level can control an H-bridge circuit with a relatively large power supply voltage (e.g., 16V) to operate (the first H-bridge circuit) to output a coaxially polarized signal, while a low level can control an H-bridge circuit with a relatively small power supply voltage (e.g., 3.3V / 6V) to operate (the second H-bridge circuit) to output a perpendicularly polarized signal.

[0049] Specifically, when the first control signal input terminal of the first H-bridge circuit receives a high-level control signal, the first voltage output terminal of the first H-bridge circuit outputs a co-directionally polarized signal; when the second control signal input terminal of the second H-bridge circuit receives a low-level control signal, the second voltage output terminal of the second H-bridge circuit outputs a perpendicularly polarized signal. In this way, the processor can directly control two dual H-bridge circuits with pre-configured voltage values ​​to output different polarization signals as signals for driving the two motion modes of the light valve, thereby eliminating the DAC and multi-stage amplifier circuits used in related technologies.

[0050] Specifically, in the embodiments of the present application, the first H-bridge circuit and the second H-bridge circuit may each include: a first bridge arm and a second bridge arm, and the first voltage output end of the first H-bridge circuit and the second voltage output end of the second H-bridge circuit may each include: a first output port and a second output port. The first bridge arm may include: a first metal-oxide-semiconductor field-effect transistor (MOS) tube and a third MOS tube, and the second bridge arm may include: a second MOS tube and a fourth MOS tube. The first output port is arranged between the first MOS tube and the third MOS tube; and the second output port is arranged between the second MOS tube and the fourth MOS tube. The drain of the first MOS tube and the drain of the second MOS tube are both connected to the first control signal input end of the first H-bridge circuit, and the source of the third MOS tube and the source of the fourth MOS tube are both grounded.

[0051] See the schematic diagram of the internal structure of two dual H-bridge circuits shown in Figure 3A. The output end of the H-bridge circuit 31 may include: output port OUT1 (first output port) and output port OUT2 (second output port). The first bridge arm m1 of the H-bridge circuit 31 may include: MOS transistor 1 and MOS transistor 3, and the second bridge arm m2 of the H-bridge circuit 31 may include: MOS transistor 2 and MOS transistor 4. Output port OUT1 is arranged between MOS transistor 1 and MOS transistor 3; output port OUT2 is arranged between MOS transistor 2 and MOS transistor 4. The drain of MOS transistor 1 and the drain of MOS transistor 2 are both connected to the control signal input terminal VH of the H-bridge circuit, and the source of MOS transistor 3 and the source of MOS transistor 4 are both grounded. The output end of the H-bridge circuit 32 may include: an output port OUT3 (a first output port) and an output port OUT4 (a second output port). The third bridge arm m3 in the H-bridge circuit 32 may include: a MOS transistor 5 and a MOS transistor 7. The fourth bridge arm m4 in the H-bridge circuit 32 may include: a MOS transistor 6 and a MOS transistor 8. The output port OUT3 is arranged between the MOS transistor 5 and the MOS transistor 7; the output port OUT4 is arranged between the MOS transistor 6 and the MOS transistor 8. The drain of the MOS transistor 5 and the drain of the sixth MOS transistor 6 are both connected to the control signal input terminal VL of the H-bridge circuit 32, and the source of the MOS transistor 7 and the source of the MOS transistor 8 are both grounded. The diode between the source and drain of the MOS transistor represents a parasitic diode inside the MOS transistor, which can prevent the inside of the MOS transistor from being reversely broken down. Possibly, the anti-backflow element in the embodiment of the present application may include: a first diode and a second diode. The first diode may be arranged between the first output port of the second H-bridge circuit and the light valve, the positive electrode of the first diode being connected to the first output port of the second H-bridge circuit, and the negative electrode of the first diode being connected to the light valve. The second diode is provided between the second output port of the second H-bridge circuit and the light valve, the anode of the second diode is connected to the second output port of the second H-bridge circuit, and the cathode of the second diode is connected to the light valve.

[0052] 3A , a diode D1 (first diode) is provided between the output port OUT3 of the H-bridge circuit 32 and the light valve, and a diode D2 (second diode) is provided between the output port OUT4 of the H-bridge circuit 32 and the light valve.

[0053] Possibly, in the embodiment of the present application, a current sensor SENSE and a resistor RES may be connected in series between the source of the MOS tube of the H-bridge circuit and the ground terminal to provide overcurrent protection for the H-bridge circuit.

[0054] Furthermore, the processor in the embodiment of the present application is further configured to output: a first enable signal and a second enable signal. The level of the first enable signal and the level of the second enable signal have opposite polarities in the same time period.

[0055] The first enable signal is used to ensure that the voltage difference between the first output port and the second output port is positive when the gates of the first MOS transistor and the fourth MOS transistor receive the first enable signal as a high level signal and the gates of the second MOS transistor and the third MOS transistor receive the second enable signal as a low level signal.

[0056] The second enable signal is used to ensure that the voltage difference between the first output port and the second output port is negative when the gates of the first MOS transistor and the fourth MOS transistor receive the first enable signal as a low level signal, and the gates of the second MOS transistor and the third MOS transistor receive the second enable signal as a high level signal.

[0057] It is understandable that, since the light valve needs to maintain the characteristic of flipping and resetting after each vibration, the embodiment of the present application adopts a method of sending an enable signal to the H-bridge to enable it to complete the rotational reset.

[0058] Taking the first H-bridge circuit shown in FIG3B as an example, when the first enable signal is high and the second enable signal is low, since the first enable signal is applied to the gates of MOS transistors 1 and 4, respectively, and the second enable signal is applied to the gates of MOS transistors 2 and 3, respectively, MOS transistors 1 and 4 are both in the on state, and MOS transistors 2 and 3 are both in the off state. Thus, the current in the first H-bridge circuit flows from MOS transistor 1 through the light valve to MOS transistor 4, and then to the ground, forming loop 1. The output voltage V in this loop that is output to the light valve is V OUT1 -V OUT2 =VH. Conversely, referring to FIG3C , when the first enable signal is low and the second enable signal is high, MOS transistors 1 and 4 are both in the off state, and MOS transistors 2 and MOS transistors 3 are both in the on state. Thus, the current in the first H-bridge circuit flows from MOS transistor 2 through the light valve to MOS transistor 3 and then to the ground, forming loop 2. Since the current flow direction of loop 2 is opposite to that of loop 1, the output voltage V in this loop output to the light valve is V = V OUT2 -V OUT1 =-VH. Thus, in the embodiment of the present application, the light valve can be driven to complete its reset movement by applying positive and negative voltages to it. For example, if the light valve moves from 0 degrees to 180 degrees under the action of the output voltage VH, then the light valve will return from 180 degrees to 0 degrees under the action of the output voltage -VH.

[0059] It is understandable that when the enable signal in the first H-bridge circuit changes polarity, a reverse current will be generated in the circuit (for example, the current flow direction in loop 1 changes to the current flow direction in loop 2). Since the energy stored in the light valve may not disappear immediately, a reverse high-voltage spike may be generated in the circuit accordingly. This spike may cause the MOS tube to be reversely broken down and damaged when there are no parasitic diodes on both sides. The parasitic diode can provide a low-impedance path, allowing this energy to flow back to the light valve through the diode, so that it can be exported through the built-in parasitic diode, thereby protecting the drain and source of the MOS tube and preventing the MOS tube from being burned out by the high-voltage spike generated by the inductive load when it is in the off state. See the schematic diagram of the corresponding relationship between the control signal and the drive signal in the embodiment of the present application shown in Figure 4. The control signal represents the digital signal composed of high and low levels output by the MCU, and the drive signal represents the output voltage signal V that drives the movement of the light valve. At time 0-t1, when the control signal is high level 1, the output voltage is VH; at time t1-t2, when the control signal is low level 0, the output voltage is VL; at time t2-t3, when the control signal is high level 1, the output voltage is -VH; at time t3-t4, when the control signal is low level 0, the output voltage is -VL; at time t4-t5, when the control signal is high level 1, the output voltage is VH, and so on.

[0060] Therefore, the embodiment of the present application can control the dual H-bridge circuit respectively through the high and low level signals in a control signal, so that the dual H-bridge circuit acts as a driving circuit to output the same polarization signal and the vertical polarization signal to the light valve respectively. Compared with the driving method of MCU+DAC in the related art, the driving circuit in the embodiment of the present application can directly set the voltage value corresponding to the same polarization signal and the voltage value corresponding to the vertical polarization signal according to the demand, and control the corresponding H-bridge circuit to output the corresponding polarization signal according to the high and low levels in the control signal. This not only solves the problems of delay and system instability caused by the DAC itself and the multi-stage amplification circuit, but also effectively reduces the circuit cost. In addition, the embodiment of the present application also adopts an anti-backflow element to prevent the risk of abnormal circuit operation caused by the current in the first H-bridge circuit flowing into the second H-bridge circuit when the control signal is a high level signal, so that the driving circuit can achieve a stable operation effect.

[0061] Figure 5 shows a schematic diagram of the internal structure of a display device including the aforementioned multiple drive circuits, as provided in an embodiment of the present application. The display device may include: a display screen, a processor, a first light valve, a second light valve, a first drive circuit, a second drive circuit, and virtual reality (VR) glasses. The control signal input of the first drive circuit and the control signal input of the second drive module are respectively connected to the processor. The voltage output of the first drive module is connected to the first light valve, and the voltage output of the second drive module is connected to the second light valve.

[0062] Specifically, the display screen in the embodiment of the present application is used to generate a target image frame based on the file to be played; the processor is used to determine the first control signal and the second control signal corresponding to the target image frame based on the configuration information of the target image frame; the first drive circuit is used to drive the first light valve to perform polarization movement based on the first control signal corresponding to the target image frame; the second drive circuit is used to drive the second light valve to perform polarization movement based on the second control signal corresponding to the target image frame; the VR glasses are used to display virtual reality information corresponding to the target image frame based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

[0063] It is understood that the file to be played is a 3D format video file received by the display device through the network or a 3D format video file stored in the local memory. When playing the file, the specific processor will first determine the configuration information corresponding to each frame in the video file to be played, that is, the 3D format information.

[0064] Specifically, the processor in the embodiment of the present application can adopt components such as MCU. The configuration information of the target image frame in the embodiment of the present application can be any one of the following: left-right format, top-bottom format, and frame sequence format. The left-right format means that the images shot at two different angles are placed in one frame, that is, there are both left-eye and right-eye images in the same frame. The top-bottom format means that the images shot at two different angles are placed in one frame, that is, a panoramic picture is divided into two parts, and the top and bottom correspond to the left eye perspective and the right eye perspective respectively. The frame sequence indicates that the pre-set target image frame can be a left-eye picture or a right-eye picture, for example, the image frame at the odd-numbered playback position in the file to be played is the left-eye picture, and the image frame at the even-numbered playback position in the middle is the right-eye picture.

[0065] Furthermore, the embodiments of the present application can determine the polarization direction of the first light valve and the polarization direction of the second light valve corresponding to the target image frame based on the configuration information of the target image frame; determine the first control signal corresponding to the target image frame based on the polarization direction of the first light valve corresponding to the target image frame; and determine the second control signal corresponding to the target image frame based on the polarization direction of the second light valve corresponding to the target image frame.

[0066] Referring to Figure 5, the MCU in the embodiment of the present application will determine in advance the polarization direction of the first light valve and the polarization direction of the second light valve at each specific moment in the entire playback process of the file to be played based on the configuration information of each image frame received in the file to be played. Then, the MCU can output a first control signal to the first driving module according to the polarization direction of the first light valve corresponding to each image frame, and output a second control signal to the second driving module according to the polarization direction of the second light valve corresponding to each image frame, so as to respectively control the two driving modules to output corresponding driving signals to drive the corresponding light valves to perform polarization movement, thereby displaying 3D stereoscopic image information.

[0067] Possibly, the display device in the embodiments of the present application includes but is not limited to: a touch screen display, an all-in-one computer, a personal computer, a tablet computer, a vehicle-mounted device, a smart phone, a computing device or other processing device connected to a wireless modem, etc.

[0068] Specifically, the first driving circuit and the second driving circuit in the embodiment of the present application may include: a first H-bridge circuit and a second H-bridge circuit; the power supply voltage of the first H-bridge circuit is greater than the power supply voltage of the second H-bridge circuit.

[0069] Specifically, the first driving circuit in the embodiment of the present application outputs a first co-directional polarization signal and a first vertical polarization signal; the first co-directional polarization signal is used to drive the first light valve to be polarized in the same direction as the polarization film of the left eye lens in the VR glasses, and the first vertical polarization signal is used to drive the first light valve to be polarized vertically with the polarization film of the left eye lens in the VR glasses; the second driving signal includes: a second co-directional polarization signal and a second vertical polarization signal; the second driving circuit outputs the second co-directional polarization signal to drive the second light valve to be polarized in the same direction as the polarization film of the right eye lens in the VR glasses, and the second vertical polarization signal is used to drive the second light valve to be polarized vertically with the polarization film of the right eye lens in the VR glasses; wherein, the polarization direction of the polarization film of the left eye lens is different from the polarization direction of the polarization film of the right eye lens.

[0070] It is understood that in the embodiments of the present application, the first H-bridge circuit of the first driving circuit can output a first co-directional polarized signal, and the second H-bridge circuit of the first driving circuit can output a first perpendicularly polarized signal. The first H-bridge circuit of the second driving circuit can output a second co-directional polarized signal, and the second H-bridge circuit of the second driving circuit can output a second perpendicularly polarized signal.

[0071] For example, light valve A can be set to correspond to the left lens of VR glasses, and light valve B to correspond to the right lens of VR glasses. That is, when the polarization direction of light valve A is the same as the polarization direction of the polarizing film in the left lens, it is co-polarized; if they are different, it is perpendicular to the polarization direction. When the polarization direction of light valve B is the same as the polarization direction of the polarizing film in the right lens, it is co-polarized; if they are different, it is perpendicular to the polarization direction. Furthermore, because the left and right lenses use polarized lenses with different polarization directions (the lenses are polarizers with mutually perpendicular directions), the left lens is horizontally polarized and the right lens is vertically polarized, then light valve A can be set to horizontally polarize when receiving a first co-polarized signal. In this way, the left-eye image on the display screen can enter the user's left eye through the left lens, while the right lens is vertically polarized, the left-eye image on the display screen can be automatically filtered out. Similarly, when light valve B is set to vertically polarize when receiving a second co-polarized signal, the right-eye image on the display screen can enter the user's right eye through the right lens, while the left lens is horizontally polarized, the right-eye image on the display screen can be automatically filtered out.

[0072] It is understood that when the first drive circuit receives a high-level first control signal output by the MCU, the first H-bridge circuit in the first drive circuit operates and outputs a first co-directional polarization signal to the light valve. When the second drive circuit receives a high-level second control signal output by the MCU, the first H-bridge circuit in the second drive circuit operates and outputs a first co-directional polarization signal to the light valve. When the first drive circuit receives a low-level first control signal output by the MCU, the second H-bridge circuit in the first drive circuit operates and outputs a first perpendicular polarization signal. When the second drive circuit receives a low-level second control signal output by the MCU, the second H-bridge circuit in the second drive circuit operates and outputs a second perpendicular polarization signal.

[0073] Furthermore, in order to ensure that the polarized light output by one light valve in the same direction as the opposite lens can all pass through the other light valve when the light valve moves in the same direction and prevent other stray light from passing through, the level polarities of the first control signal and the second control signal in the same time period need to remain opposite.

[0074] Refer to Figure 6 for a schematic diagram of the two dual H-bridge circuits within the display device. When H-bridge circuit 61 of light valve A receives a high-level signal in the first control signal, it causes light valve A to move in the same polarization direction, allowing light to pass through the left lens. Because the polarization directions of the left and right lenses are perpendicular to each other, the second control signal needs to be configured as a low-level signal relative to light valve B. This means that H-bridge circuit 64 activates, causing light valve B to move in a perpendicular polarization direction. This fully blocks light valve B relative to light valve A. This means that all light output from light valve A passes through light valve B, while preventing any stray light from passing through.

[0075] See Figure 6. The output end of the first H-bridge circuit 61 may include: output port OUT1 and output port OUT2. The first bridge arm of the first H-bridge circuit 61 may include: MOS transistors 1 and 3. The second bridge arm of the first H-bridge circuit 61 may include: MOS transistors 2 and 4. Output port OUT1 is arranged between MOS transistors 1 and 3; output port OUT2 is arranged between MOS transistors 2 and 4. The drains of MOS transistors 1 and 2 are both connected to the control signal input terminal VH of the first H-bridge circuit, and the sources of MOS transistors 3 and 4 are both grounded. The output end of the H-bridge circuit 62 may include: output port OUT3 and output port OUT4. The third bridge arm of the H-bridge circuit 62 may include: MOS transistors 5 and 7. The fourth bridge arm of the H-bridge circuit 62 may include: MOS transistors 6 and 8. Output port OUT3 is arranged between MOS transistors 5 and 7; output port OUT4 is arranged between MOS transistors 6 and 8. The drain of MOS transistor 5 and the drain of the sixth MOS transistor 6 are both connected to the control signal input terminal VL of the H-bridge circuit 62, and the source of MOS transistor 7 and the source of MOS transistor 8 are both grounded. The output terminal of the H-bridge circuit 63 may include: output port OUT5 and output port OUT6. The fifth bridge arm of the H-bridge circuit 63 may include: MOS transistor 9 and MOS transistor 11. The sixth bridge arm of the H-bridge circuit 63 may include: MOS transistor 10 and MOS transistor 12. The output port OUT5 is arranged between MOS transistor 9 and MOS transistor 11; the output port OUT6 is arranged between MOS transistor 10 and MOS transistor 12. The drain of MOS transistor 9 and the drain of MOS transistor 10 are both connected to the control signal input terminal VH of the H-bridge circuit 63, and the source of MOS transistor 11 and the source of MOS transistor 12 are both grounded. The output end of the H-bridge circuit 64 may include: an output port OUT7 and an output port OUT8. The seventh bridge arm of the H-bridge circuit 64 includes: a MOS transistor 13 and a MOS transistor 15. The eighth bridge arm of the H-bridge circuit 64 may include: a MOS transistor 14 and a MOS transistor 16. The output port OUT7 is arranged between the MOS transistor 13 and the MOS transistor 15; the output port OUT8 is arranged between the MOS transistor 14 and the MOS transistor 16. The drain of the MOS transistor 13 and the drain of the MOS transistor 14 are both connected to the control signal input terminal VL of the H-bridge circuit 64, and the source of the MOS transistor 15 and the source of the MOS transistor 16 are both grounded.

[0076] Referring to FIG6 , a diode D1 is provided between output port OUT3 of the H-bridge circuit 62 and light valve A. The anode of diode D1 is connected to output port OUT3 of the H-bridge circuit 62, and the cathode of diode D1 is connected to light valve A. A diode D2 is provided between output port OUT4 of the H-bridge circuit 62 and light valve A. The anode of diode D2 is connected to output port OUT4 of the H-bridge circuit 62, and the cathode of diode D2 is connected to light valve A. A diode D3 is provided between output port OUT7 of the H-bridge circuit 64 and light valve B. The anode of diode D3 is connected to output port OUT7 of the H-bridge circuit 64, and the cathode of diode D4 is connected to light valve B. A diode D4 is provided between output port OUT4 of the H-bridge circuit 64 and light valve B. The anode of diode D4 is connected to output port OUT8 of the H-bridge circuit 62, and the cathode of diode D4 is connected to light valve B.

[0077] Possibly, the processor in the embodiment of the present application is also used to determine the voltage value of the power supply voltage of the second H-bridge circuit based on the ambient temperature; wherein the ambient temperature is inversely proportional to the voltage value of the power supply voltage of the second H-bridge circuit.

[0078] It is understandable that the activity of the liquid crystal of the light valve is inconsistent at different temperatures. Therefore, the embodiment of the present application adopts appropriate low voltages for different temperatures to ensure the stability of the product.

[0079] FIG7 is a schematic diagram of a voltage selection circuit. The voltage selection circuit in the embodiment of the present application includes circuit components such as a voltage input terminal VIN, a voltage conversion chip UD1, an output voltage selection terminal SELECT, a MOS transistor QD1, and an output terminal VOUT. The voltage conversion chip UD1 can convert the input voltage into a preset voltage and output it through the voltage feedback pin FB. Furthermore, the specific value of the input light valve drive voltage VL can be selected by controlling the output voltage selection terminal SELECT. For example, when the output voltage of the voltage feedback pin FB is 0.6V and the output voltage VOUT requires VL1 = 3.3V, the SELECT input can be controlled to a low level to lower the gate voltage of the MOS transistor QD1, turning it off, VOUT = 0.6×(1+RD1 / RD5). When the output voltage of the voltage feedback pin FB is 0.6V and the output voltage VOUT requires VL2 = 6V, the SELECT input can be controlled to a high level to raise the gate voltage of the MOS transistor QD1, turning it on, VOUT = 0.6×(1+RD1 / RD5 / / RD3).

[0080] In an embodiment of the present application, a processor can be used to control two driving circuits respectively, so that the two light valves determine the two control signals that the processor needs to output according to the configuration information of the target image frame. One control signal is used to control the first driving signal output by the first driving module, so that the first light valve is polarized according to the first driving signal, and the other control signal is used to control the second driving signal output by the second driving module, so that the second light valve is polarized according to the second driving signal.

[0081] Thus, the embodiment of the present application uses a single processor to control the operation of two driver modules, achieving the output of multiple related signals without delay, significantly improving the operating efficiency of the display device. Furthermore, the embodiment of the present application employs dual H-bridge circuits, each corresponding to a different power supply voltage. Based on the control signal, the corresponding H-bridge circuit outputs a polarization signal to drive the light valve polarization, thus resolving the signal delay and system instability issues caused by the use of DAC circuits and multi-stage amplifier circuits in related technologies to drive the light valve.

[0082] Next, the display method provided in the embodiment of the present application is introduced with reference to the schematic diagrams related to the display device introduced in Figures 2 to 7.

[0083] In one embodiment, a flow chart of a display method is provided in FIG8 . As shown in FIG8 , the display method may include the following steps:

[0084] S801, generating a target image frame based on the file to be played through the display screen; S802, determining a first control signal and a second control signal corresponding to the target image frame through the processor based on the configuration information of the target image frame; S803, driving a first light valve to perform polarization movement based on the first control signal corresponding to the target image frame through the first driving circuit; driving a second light valve to perform polarization movement based on the second control signal corresponding to the target image frame through the second driving circuit; S804, displaying virtual reality information corresponding to the target image frame through the VR glasses based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

[0085] Referring to FIG9 , in a specific example, a display device includes: a display screen, a processor, a mainboard, a display control board, a dual H-bridge 1, a dual H-bridge 2, a power module, a voltage selection module, a first light valve, a second light valve, and VR glasses (not shown in FIG9 ). When the configuration information (3D format) is a frame sequential format, the mainboard sends a synchronization signal SYNC to the processor via a Universal Serial Bus (USB). When the configuration information (3D format) is a left-right format or a top-and-bottom format, the display control board sends a synchronization signal SYNC to the processor. The processor determines whether the current image frame belongs to the left eye or the right eye based on the synchronization signal SYNC, thereby controlling the corresponding polarization mode of the light valve operation. Furthermore, the processor can use the synchronization signal SYNC to determine a first control signal and a second control signal that respectively control the operating mode of the two dual H-bridge circuits, and control the operating mode of the loops in the dual H-bridge circuits by sending corresponding enable signals to the two dual H-bridge circuits. When the first and second control signals are high, the power module inputs a voltage VH (16V) to the dual H-bridge circuit. When the first and second control signals are low, the power module inputs a voltage VL (3.3V / 6V) to the dual H-bridge circuit. Furthermore, when the ambient temperature is high, the voltage selection module can input a voltage of 3.3V, and when the ambient temperature is low, the voltage selection module can input a voltage of 6V. Finally, by inputting corresponding drive voltages to the two H-bridges of the dual H-bridge circuit, the first and second light valves are controlled to operate according to a pre-set polarization mode to display a 3D image.

[0086] Figure 10 is a schematic diagram of the structure of a display device provided by an exemplary embodiment of the present application. The display device is used for a display device, and the display device may include: a display screen, a processor, a first light valve, a second light valve, a first drive circuit, a second drive circuit, and virtual reality (VR) glasses; the control signal input end of the first drive circuit and the control signal input end of the second circuit module are respectively connected to the processor, the output end of the first drive circuit is connected to the first light valve, and the output end of the second drive module is connected to the second light valve. As shown in Figure 10, the display device may include:

[0087] An image frame generating module 110 is configured to generate a target image frame based on the file to be played via the display screen;

[0088] The signal processing module 120 is configured to determine, by the processor, a first control signal and a second control signal corresponding to the target image frame based on the configuration information of the target image frame; drive, by the first driving circuit, the first light valve to perform polarization movement based on the first control signal corresponding to the target image frame; and drive, by the second driving circuit, the second light valve to perform polarization movement based on the second control signal corresponding to the target image frame;

[0089] The virtual reality information display module 130 is configured to display virtual reality information corresponding to the target image frame through the VR glasses based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

[0090] In this embodiment of the present application, a single processor can control two drive circuits separately, so that the two light valves determine the two control signals that the processor needs to output based on the configuration information of the target image frame. One control signal is used to control the first drive signal output by the first drive circuit, so that the first light valve is polarized according to the first drive signal, and the other control signal is used to control the second drive signal output by the second drive circuit, so that the second light valve is polarized according to the second drive signal. Thus, by using a single processor to control the operation of the two drive circuits, this embodiment of the present application can output multiple related signals without delay, significantly improving the operating efficiency of the display device.

[0091] It should be noted that the display system provided in the above embodiment, when executing the display method, is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the display system provided in the above embodiment and the display method embodiment are based on the same concept. The implementation process is detailed in the method embodiment and will not be repeated here.

[0092] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0093] The present application also provides a computer-readable storage medium having instructions stored therein that, when executed on a computer or processor, cause the computer or processor to perform one or more steps of the embodiment shown in FIG8 . If the various components of the display device described above are implemented as software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium.

[0094] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product of the present application includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer in the present application can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable system. The computer instructions can be stored in a computer-readable storage medium or transmitted via a computer-readable storage medium. The computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, digital versatile discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0095] Those skilled in the art will appreciate that all or part of the processes in the above-described embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When executed, the program can include the processes of the above-described embodiments. The aforementioned storage medium includes various media capable of storing program code, such as read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks. Unless there is a conflict, the technical features of this embodiment and the implementation scheme can be combined in any manner.

[0096] The above embodiments are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements made to the technical solutions of the present application by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present application.

Claims

1. A driving circuit, characterized in that, it includes: a first H-bridge circuit, a second H-bridge circuit, and an anti-backflow element; wherein, the anti-backflow element is arranged between the first H-bridge circuit and the second H-bridge circuit, the first control signal input terminal of the first H-bridge circuit and the second control signal input terminal of the second H-bridge circuit are respectively connected to a processor, and the first voltage output terminal of the first H-bridge circuit and the second voltage output terminal of the second H-bridge circuit are respectively connected to a light valve; the processor is used for outputting a control signal; the first H-bridge circuit is used for, when the control signal received at the first control signal input terminal is a high-level signal, the first H-bridge circuit conducts and operates, and the first voltage output terminal outputs a co-polarized signal to the light valve to enable the light valve to perform co-polarized movement; the second H-bridge circuit is used for, when the control signal received at the second control signal input terminal is a low-level signal, the second H-bridge circuit conducts and operates, and the second voltage output terminal outputs a vertical polarization signal to the light valve to enable the light valve to perform vertical polarization movement; wherein, the voltage value corresponding to the co-polarized signal is greater than the voltage value corresponding to the vertical polarization signal; the anti-backflow element is used for preventing the current in the first H-bridge circuit from flowing into the second H-bridge circuit when the control signal is a high-level signal.

2. The driving element according to claim 1, characterized in that, both the first H-bridge circuit and the second H-bridge circuit include: a first bridge arm and a second bridge arm, the first voltage output terminal of the first H-bridge circuit and the second voltage output terminal of the second H-bridge circuit both include: a first output port and a second output port, the first bridge arm includes: a first MOS transistor and a third MOS transistor, the second bridge arm includes: a second MOS transistor and a fourth MOS transistor, the first output port is arranged between the first MOS transistor and the third MOS transistor; the second output port is arranged between the second MOS transistor and the fourth MOS transistor; wherein, the drain of the first MOS transistor and the drain of the second MOS transistor are both connected to the first control signal input terminal of the first H-bridge circuit, and the source of the third MOS transistor and the source of the fourth MOS transistor are both grounded.

3. The driving element according to claim 2, characterized in that, the anti-backflow element includes: a first diode and a second diode; the first diode is arranged between the first output port of the second H-bridge circuit and the light valve, the positive electrode of the first diode is connected to the first output port of the second H-bridge circuit, and the negative electrode of the first diode is connected to the light valve; the second diode is arranged between the second output port of the second H-bridge circuit and the light valve, the positive electrode of the second diode is connected to the second output port of the second H-bridge circuit, and the negative electrode of the second diode is connected to the light valve.

4. The driving element according to claim 2, characterized in that, The processor is further configured to output: a first enable signal and a second enable signal, wherein the levels of the first enable signal and the second enable signal have opposite polarities in the same time period; The first enable signal is used to make the voltage difference between the first output port and the second output port positive when the gates of the first MOS transistor and the fourth MOS transistor receive the first enable signal as a high-level signal, and the gates of the second MOS transistor and the third MOS transistor receive the second enable signal as a low-level signal; The second enable signal is used to make the voltage difference between the first output port and the second output port negative when the gates of the first MOS transistor and the fourth MOS transistor receive the first enable signal as a low-level signal, and the gates of the second MOS transistor and the third MOS transistor receive the second enable signal as a high-level signal.

5. A display device including a plurality of driving circuits as described in any one of claims 1-4, characterized in that the plurality of driving circuits include: a first driving circuit and a second driving circuit, and the display device further includes: a display screen, a processor, a first light valve, a second light valve, and a virtual reality (VR) glasses; a control signal input end of the first driving circuit and a control signal input end of the second driving circuit are respectively connected to the processor, a voltage output end of the first driving circuit is connected to the first light valve, and a voltage output end of the second driving circuit is connected to the second light valve; wherein, the display screen is configured to generate a target image frame based on a file to be played; the processor is configured to determine a first control signal and a second control signal corresponding to the target image frame based on configuration information of the target image frame; the first driving circuit is configured to drive the first light valve to perform polarization movement based on the first control signal corresponding to the target image frame; the second driving circuit is configured to drive the second light valve to perform polarization movement based on the second control signal corresponding to the target image frame; the VR glasses are configured to display virtual reality information corresponding to the target image frame based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

6. The device according to claim 5, characterized in that the processor is specifically configured to: determine the polarization direction of the first light valve and the polarization direction of the second light valve corresponding to the target image frame according to the configuration information of the target image frame; determine the first control signal corresponding to the target image frame based on the polarization direction of the first light valve corresponding to the target image frame; determine the second control signal corresponding to the target image frame based on the polarization direction of the second light valve corresponding to the target image frame.

7. The device according to claim 6, characterized in that both the first driving circuit and the second driving circuit include: a first H-bridge circuit and a second H-bridge circuit; the power supply voltage of the first H-bridge circuit is greater than the power supply voltage of the second H-bridge circuit.

8. The device according to claim 7, characterized in that ​ The first driving circuit outputs a first co-polarized signal and a first cross-polarized signal; the first co-polarized signal is used to drive the first light valve to be co-polarized with the polarizing film of the left lens in the VR glasses, and the first cross-polarized signal is used to drive the first light valve to be cross-polarized with the polarizing film of the left lens in the VR glasses; The second driving signal includes: a second co-polarized signal and a second cross-polarized signal; the second driving circuit outputs the second co-polarized signal to drive the second light valve to be co-polarized with the polarizing film of the right lens in the VR glasses, and the second cross-polarized signal is used to drive the second light valve to be cross-polarized with the polarizing film of the right lens in the VR glasses; Wherein, the polarization direction of the polarizing film of the left lens is different from the polarization direction of the polarizing film of the right lens.

9. The device according to claim 7, wherein, the processor is further configured to determine a voltage value of the power supply voltage of the second H-bridge circuit based on the ambient temperature; the ambient temperature and the magnitude of the voltage value of the power supply voltage of the second H-bridge circuit are inversely proportional to each other.

10. The device according to any one of claims 5-9, wherein, the configuration information of the target image frame is any one of the following: left-right format, up-down format, frame-sequential format.

11. A display method, wherein, the display method is used for the display device according to claim 5, and the method includes: generating a target image frame based on a file to be played through the display screen; determining a first control signal and a second control signal corresponding to the target image frame based on the configuration information of the target image frame through the processor; driving the first light valve to perform polarization movement based on the first control signal corresponding to the target image frame through the first driving circuit; driving the second light valve to perform polarization movement based on the second control signal corresponding to the target image frame through the second driving circuit; displaying virtual reality information corresponding to the target image frame through the VR glasses based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

12. A display device, wherein, the display device is used for the display device according to claim 5, and the device includes: an image frame generation module, configured to generate a target image frame based on a file to be played through the display screen; a signal processing module, configured to determine a first control signal and a second control signal corresponding to the target image frame based on the configuration information of the target image frame through the processor; driving the first light valve to perform polarization movement based on the first control signal corresponding to the target image frame through the first driving circuit; driving the second light valve to perform polarization movement based on the second control signal corresponding to the target image frame through the second driving circuit; a virtual reality information display module, configured to display virtual reality information corresponding to the target image frame through the VR glasses based on the target image frame, the polarization movement of the first light valve, and the polarization movement of the second light valve.

13. A computer storage medium, It is characterized in that The computer storage medium stores multiple instructions, and the instructions are adapted to be loaded and executed by a processor to perform the method steps of claim 11.

Images