Three-dimensional display device

Abstract

The present application relates to the technical field of display, and in particular to a three-dimensional display device. The device comprises a master control chip, and a graphics card module, a display control chip, a backlight module and a light valve module that are electrically connected to the master control chip, wherein the light valve module is further electrically connected to the display control chip. The master control chip is configured to, when same receives from the graphics card module picture data and the picture refreshing rate of a three-dimensional picture to be displayed and the display control chip transmits the picture data to the light valve module, parse the picture data and calculates a first driving signal and a second driving signal; and the master control chip transmits to the light valve module the first driving signal that has been subjected to digital-to-analog conversion, and transmits the second driving signal to the backlight module, so as to control a current polarization state of the light valve module and control the backlight module to present a backlight off state when the light valve module is within a polarization state switching time period. By means of fewer chips, the normal operation of the three-dimensional display device is realized, thereby helping to reduce the manufacturing cost of the three-dimensional display device, and also helping to improve the popularity rate of the three-dimensional display device.

Description

3D display device Technical Field

[0001] The present application relates to the field of display technology, and in particular to a three-dimensional display device. Background Art

[0002] Currently, among the technical solutions related to virtual reality, the three-dimensional display effect of desktop VR (Virtual Reality) all-in-one machines is realistic and is highly favored by university experimental training courses. However, due to the high production cost of desktop VR all-in-one machines, it is difficult to popularize them in universities, and it is even more difficult for ordinary users to experience the realistic display experience brought by VR all-in-one machines. Therefore, how to reduce the production cost of all-in-one machines is an urgent problem to be solved in this field.

[0003] Summary of the Invention

[0004] Based on this, it is necessary to provide a three-dimensional display device that can reduce the production cost of an all-in-one machine in order to solve the above technical problems.

[0005] In a first aspect, the present application provides a three-dimensional display device, comprising a main control chip, and a graphics card module, a display control chip, a backlight module, and a light valve module electrically connected to the main control chip, wherein:

[0006] The main control chip is used to, upon receiving the image data and image refresh rate of the 3D image to be displayed transmitted by the graphics card module, and when the display control chip transmits the image data to the light valve module, parse the image data to confirm whether the image data is left-eye data or right-eye data;

[0007] The main control chip is further configured to calculate a first driving signal and a second driving signal based on the left-eye data or the right-eye data, and perform digital-to-analog conversion on at least the first driving signal;

[0008] The main control chip is also used to transmit the first drive signal to the light valve module and the second drive signal to the backlight module to control the current polarization state of the light valve module and control the backlight module to be in a backlight-off state during the switching time period when the light valve module is in the polarization state.

[0009] In one embodiment, a signal amplification module is further included;

[0010] The signal amplifying module is electrically connected between the main control chip and the light valve module, and is used to adjust the voltage value of the first driving signal.

[0011] In one embodiment, the signal amplification module is a dual H-bridge circuit.

[0012] In one embodiment, the polarization state of the light valve module includes at least a first polarization state and a second polarization state;

[0013] The dual H-bridge circuit includes a first H-bridge circuit and a second H-bridge circuit; wherein the first H-bridge circuit is used to control the light valve module to be in a first polarization state, and the second H-bridge circuit is used to control the light valve module to be in a second polarization state.

[0014] In one embodiment, the signal amplification module includes a first-stage amplification module and a second-stage amplification module;

[0015] The first-stage amplifier module is electrically connected between the main control chip and the second-stage amplifier module, and the second-stage amplifier module is electrically connected to the light valve module; the first-stage amplifier module is used to adjust the first voltage value V1 of the received first drive signal to a second voltage value V2, and the second-stage amplifier module is used to adjust the received second voltage value V2 to a third voltage value V3, |V1|<|V2|<|V3|.

[0016] In one embodiment, the first-stage amplification module is a dual-channel operational amplifier in the same direction.

[0017] In one embodiment, the second-stage amplification module includes at least two driving units, each of which controls the polarization state of a partial area of ​​the light valve module.

[0018] In one embodiment, along the thickness direction of the three-dimensional display device, the light valve module includes a first liquid crystal light valve and a second liquid crystal light valve that are stacked;

[0019] The second-stage amplification module includes at least a first driving unit and a second driving unit, the first driving unit is used to control the polarization state of the first liquid crystal light valve in the light valve module, and the second driving unit is used to control the polarization state of the second liquid crystal light valve in the light valve module.

[0020] In one embodiment, the polarization state of the light valve module includes at least a first polarization state for transmitting a first polarized light and a second polarization state for transmitting a second polarized light, and the polarization direction of the first polarized light intersects the polarization direction of the second polarized light;

[0021] The first polarized light is the polarized light corresponding to the left-eye data, and the second polarized light is the polarized light corresponding to the right-eye data.

[0022] In one embodiment, along the thickness direction of the three-dimensional display device, the light valve module includes a first liquid crystal light valve and a second liquid crystal light valve that are stacked;

[0023] When the light valve module is in the first polarization state, the first liquid crystal light valve rotates by a first preset angle, the second liquid crystal light valve rotates by a second preset angle, and the second liquid crystal light valve is in a fully light-transmitting state relative to the first liquid crystal light valve;

[0024] When the light valve module is in the second polarization state, the first liquid crystal light valve rotates by a third preset angle, the second liquid crystal light valve rotates by a fourth preset angle, and the first liquid crystal light valve is in a fully transparent state relative to the second liquid crystal light valve.

[0025] In one embodiment, the first driving signal includes at least a first sub-signal and a second sub-signal;

[0026] The first sub-signal is used to control the first liquid crystal light valve to be at the first preset angle or the third preset angle;

[0027] The second sub-signal is used to control the second liquid crystal light valve to be at the second preset angle or the fourth preset angle.

[0028] In one embodiment, the graphics card module transmits the image data and image refresh rate of the three-dimensional image to be displayed to the main control chip;

[0029] The graphics card module also transmits the image data to the display control chip via an HDMI or DP signal line;

[0030] When the light valve module is in the polarization state corresponding to the left eye data, the three-dimensional display device displays the picture corresponding to the left eye data; when the light valve module is in the polarization state corresponding to the right eye data, the three-dimensional display device displays the picture corresponding to the right eye data; the display of the three-dimensional picture is achieved by alternately displaying the pictures corresponding to the left eye data and the right eye data.

[0031] In one embodiment, it further includes a backlight driver chip;

[0032] The backlight driving chip is electrically connected between the backlight module and the main control chip, and is used to realize the transmission of electrical signals between the backlight module and the main control chip.

[0033] In one embodiment, it further includes an infrared light board;

[0034] The infrared light board is electrically connected to the main control chip.

[0035] In a second aspect, the present application further provides a three-dimensional display device, comprising a display control chip and a graphics card module, a backlight module, and a light valve module electrically connected to the display control chip; wherein:

[0036] The display control chip is used to, upon receiving the image data and image refresh rate of the 3D image to be displayed transmitted by the graphics card module and transmitting the image data to the light valve module, analyze the image data to confirm whether the image data is left-eye data or right-eye data;

[0037] The display control chip is further configured to calculate a first drive signal and a second drive signal based on the left-eye data or the right-eye data, and perform digital-to-analog conversion on at least the first drive signal;

[0038] The display control chip is also used to transmit the first drive signal to the light valve module and the second drive signal to the backlight module to control the current polarization state of the light valve module and control the backlight module to be in a backlight-off state during the switching time period when the light valve module is in the polarization state.

[0039] The above-mentioned three-dimensional display device is provided with an internal main control chip that is directly electrically connected to the graphics card module, the display control chip, the backlight module and the light valve module, and the light valve module is electrically connected to the display control chip. Based on this structure within the three-dimensional display device, when the main control chip receives the picture data and picture refresh rate of the three-dimensional picture to be displayed transmitted by the graphics card module, and the display control chip transmits the picture data to the light valve module, the main control chip can directly parse the picture data to determine whether the currently received picture data is left-eye data or right-eye data. Furthermore, the main control chip can also directly calculate the driving signals that need to be sent to the light valve module and the backlight module based on the left-eye data or the right-eye data, that is, calculate a first driving signal and a second driving signal, and then perform digital-to-analog conversion on the calculated first driving signal and transmit it to the light valve module, and transmit the calculated second driving signal to the backlight module, so as to realize the control of the backlight module by the main control chip to present the backlight-off state during the switching period when the light valve module is in the polarization state. It can be seen that through a main control chip, electrical signal transmission between the graphics card module, display control chip, backlight module and light valve module can be realized. At the same time, the main control chip can also realize the analysis of the received image data and the calculation of the drive signal, and can also perform digital-to-analog conversion on at least the first drive signal in the drive signal, and then can control the polarization state of the three-dimensional display device based on the calculated first drive signal, and control the display state of the three-dimensional display device based on the calculated second drive signal; thereby eliminating the need to set up the chip required for parsing the image data and the need to set up the chip required for digital-to-analog conversion of the signal. That is, the three-dimensional display device provided by the present application can realize the normal operation of the three-dimensional display device by setting a smaller number of chips, simplifying the number of hardware used in the three-dimensional display device, which is beneficial to reducing the production cost of the three-dimensional display device, while also ensuring the display effect of the three-dimensional display device, and is beneficial to increasing the popularity of the three-dimensional display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. 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.

[0041] FIG1 is a schematic diagram showing a module structure of a three-dimensional display device according to an embodiment of the related art;

[0042] FIG2 is a schematic diagram of a three-dimensional display device provided in an embodiment of the present application;

[0043] FIG3 is a schematic diagram showing a module architecture of a three-dimensional display device provided in an embodiment of the present application;

[0044] FIG4 is another schematic diagram showing the module architecture of the three-dimensional display device provided in an embodiment of the present application;

[0045] FIG5 is another schematic diagram showing the module architecture of the three-dimensional display device provided in an embodiment of the present application;

[0046] FIG6 is a schematic diagram of a second-stage amplification module provided in an embodiment of the present application;

[0047] FIG7 is a schematic diagram of a light valve module provided in an embodiment of the present application;

[0048] FIG8 is another schematic diagram showing the module structure of the three-dimensional display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in 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 in 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.

[0050] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present application.

[0051] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0052] In this document, spatially related terms such as "upper" and "lower" are defined with reference to the accompanying drawings. Therefore, it will be understood that "upper" and "lower" are used interchangeably. It will be understood that when a layer is referred to as being "on" another layer, it can be directly formed on the other layer, or intervening layers may also be present. Therefore, it will be understood that when a layer is referred to as being "directly on" another layer, there are no intervening layers therebetween.

[0053] In the drawings, the dimensions of layers and regions may be exaggerated for clarity. It will be understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or intervening layers may be present. Additionally, it will be understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or one or more intervening layers may be present. Like reference numerals refer to like elements throughout.

[0054] Hereinafter, although terms such as "first," "second," and the like may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are used only to distinguish one component from another. It will also be understood that expressions used in the singular include plural expressions, unless the singular expression has a significantly different meaning in the context. In addition, in the following embodiments, it will also be understood that the terms "including" and / or "having" used herein indicate the presence of the stated features or components, but do not exclude the presence or addition of one or more other features or components.

[0055] In the following embodiments, when a layer, region, or element is described as being "connected," it can be interpreted that the layer, region, or element is not only directly connected but also connected via other components interposed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly but also via another layer, region, element, etc. interposed therebetween.

[0056] As used in this application, the term "and / or" includes any and all combinations of one or more of the associated listed items. When a phrase such as "at least one of..." follows a list of elements, it modifies the entire list, not the individual elements in the list.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used in the specification of this application are intended only to describe specific embodiments and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0059] FIG1 is a schematic diagram of the module architecture of the three-dimensional display device of the related technical embodiment. Please refer to FIG1 . As described in the background technology, the production cost of the existing VR all-in-one machine is relatively high, so the selling price is relatively high, and it cannot be popularized among colleges and ordinary users. In the existing VR all-in-one machine, a signal control chip 08 is provided between the graphics card module 06 and the synchronization chip 01. The signal control chip 08 is used to parse the data transmitted from the graphics card module 06 to find out whether the data transmitted from the graphics card module 06 is left eye data or right eye data, and then forward the left eye data and right eye data to the synchronization chip 01. In addition, the light valve control chip 02 and DAC (digital to analog) are provided on the path where the synchronization chip 01 transmits the drive signal to the light valve 05. converter, digital-to-analog conversion) chip 08, the light valve control chip 02 is used to analyze whether the driving signal transmitted by the synchronization chip 01 is a left-eye signal or a right-eye signal, and then forward the analyzed left-eye signal or right-eye signal to the DAC chip 03. The DAC chip 03 outputs a corresponding analog signal to the light valve 05 according to the left-eye signal or right-eye signal received from the light valve control chip 02, that is, the DAC chip 03 is used to convert the digital signal transmitted by the light valve control chip 02 into an analog signal and then send it out; among them, the signal control chip 08, the light valve control chip 02, and the DAC chip 03 do not fully utilize their own functions, which greatly increases the production cost of the VR all-in-one machine; for example: the signal control chip 08 is only used to analyze and forward the received signal, the light valve control chip 02 is only used to analyze and forward the received signal, and the DAC chip 03 is only used to realize the digital-to-analog conversion of the signal. Obviously, the functions of these chips are relatively simple, and they will also increase the complexity of the electronic architecture of the VR all-in-one machine and increase the difficulty of assembling the VR all-in-one machine. Furthermore, the all-in-one VR headset may also include a signal amplifier chip 04 between the DAC chip 03 and the light valve 05, a USB 07 between the graphics card module 06 and the signal control chip 08, and a display control board 09 and a backlight module 00, each electrically connected to the synchronization chip 01. As can be seen from the related art, the number of chips used in all-in-one VR headsets is relatively large, and the high procurement price of these chips makes the final VR headset unaffordable for users. All-in-one VR headsets with a large number of chips have a complex hardware architecture, and the linkage of multiple chips can also prevent real-time signal processing, greatly increasing the difficulty of software algorithm synchronization and hardware cost control.

[0060] Based on the above reasons, it is urgent to provide a three-dimensional display device with a new structure that can reduce the number of chips used while ensuring a good display effect of the three-dimensional display device, so as to reduce the structural complexity, assembly difficulty and production cost of the three-dimensional display device.

[0061] FIG2 is a schematic diagram of a three-dimensional display device provided in an embodiment of the present application, FIG3 is a schematic diagram of a module architecture of a three-dimensional display device provided in an embodiment of the present application, and FIG4 is another schematic diagram of a module architecture of a three-dimensional display device provided in an embodiment of the present application. Referring to FIG2-FIG4 , based on the above reasons, the present application provides a three-dimensional display device 100, comprising a main control chip 10, and a graphics card module 11, a display control chip 12, a backlight module 13, and a light valve module 14, each electrically connected to the main control chip 10. The light valve module 14 is also electrically connected to the display control chip 12; wherein:

[0062] The main control chip 10 is used to receive the image data and image refresh rate of the 3D image to be displayed transmitted by the graphics card module 11, and when the display control chip 12 transmits the image data to the light valve module 14, the main control chip 10 analyzes the image data to confirm whether the image data is left-eye data or right-eye data;

[0063] The main control chip 10 is further used to calculate a first driving signal and a second driving signal based on the left-eye data or the right-eye data, and to perform digital-to-analog conversion on at least the first driving signal;

[0064] The main control chip 10 is also used to transmit a first drive signal to the light valve module 14 and a second drive signal to the backlight module 13 to control the current polarization state of the light valve module 14 and control the backlight module 13 to be in a backlight-off state during the switching period when the light valve module 14 is in the polarization state.

[0065] Specifically, the present application provides a 3D display device 100. The component architecture of the 3D display device 100 includes at least a main control chip 10, a graphics card module 11, a display control chip 12, a backlight module 13, and a light valve module 14. The graphics card module 11, the display control chip 12, the backlight module 13, and the light valve module 14 can be directly electrically connected to the main control chip 10, without any other chip structures in between. This reduces the number of chips required in the 3D display device 100, simplifies the assembly steps and manufacturing process of the 3D display device 100, and reduces the manufacturing cost of the 3D display device 100. Furthermore, to ensure the normal display function of the 3D display device 100, the light valve module 14 can be further electrically connected to the display control chip 12.

[0066] Based on the main control chip 10 provided in this application being directly electrically connected to the graphics module 11, the display control chip 12, the backlight module 13, and the light valve module 14, and the light valve module 14 being further electrically connected to the display control chip 12, the main control chip 10 is used to control the polarization and light output of the light valve module 14 and the backlight module 13. It should be noted that the image data transmitted by the graphics module 11 and received by the main control chip 10 includes left-eye data or right-eye data to be used to control the polarization state of the light valve module 14, and the image data received by the display control chip 12 includes whether the image to be displayed by the 3D display device 100 is the left-eye image or the right-eye image. By controlling the specific display image output by the screen of the 3D display device 100 and matching the specific polarization state of the light valve module 14, the 3D display device 100 can transmit the desired image to the user's left eye or right eye.

[0067] Therefore, the process of the main control chip 10 for controlling the polarization and light output of the light valve module 14 and the backlight module 13 can be as follows: first, when the main control chip 10 receives the picture data and picture refresh rate of the three-dimensional picture to be displayed transmitted to it by the graphics card module 11, and receives feedback from the display control chip 12 to it that the picture data has been refreshed to the light valve module 14, the main control chip 10 can first parse the received picture data of the three-dimensional picture to be displayed to find out whether the currently received picture data is the left eye data or the right eye data required for the three-dimensional display. Only after confirming whether the received data is the left eye data or the right eye data, can the main control chip 10 decide what signal to send to the light valve module 14 to control the specific polarization state of the light valve module 14. For example, when the main control chip 10 parses that the currently received picture data is left-eye data, it is necessary to control the polarization state of the light valve module 14 to be a polarization state for emitting the corresponding left-eye polarized light. When the main control chip 10 parses that the currently received picture data is right-eye data, it is necessary to control the polarization state of the light valve module 14 to be a polarization state for emitting the corresponding right-eye polarized light, so as to achieve control of the three-dimensional display device 100 to transmit the required picture to the user's left eye or the right eye during different display times.

[0068] Then, the main control chip 10 can calculate the electrical signals that need to be transmitted to the backlight module 13 and the light valve module 14 based on the left-eye data or right-eye data of the three-dimensional image to be displayed and the image refresh rate, specifically calculating the first drive signal to be transmitted to the light valve module 14 and the second drive signal to be transmitted to the backlight module 13; since the first drive signal calculated by the main control chip 10 is a digital signal, the digital signal cannot drive the polarization state of the light valve module 14, so the main control chip 10 will at least perform digital-to-analog conversion on the calculated first drive signal to convert the first drive signal from a digital signal into an analog signal that can be recognized by the light valve module 14; then the main control chip 10 can transmit the first drive signal converted into an analog signal to the light valve module 14 to realize the control of the polarization state of the light valve module 14 by the first drive signal, and at the same time transmit the second drive signal to the backlight module 13 to control the backlight module 13 to be in a light-emitting state or a closed state. Among them, the first driving signal will be different due to the left eye data and the right eye data. Therefore, the first driving signal calculated by the main control chip 10 based on the received left eye data can be used to realize the regulation of the polarization state of the light valve module 14 to be used for emitting the corresponding left eye polarized light. The first driving signal calculated by the main control chip 10 based on the received right eye data can be used to realize the regulation of the polarization state of the light valve module 14 to be used for emitting the corresponding right eye polarized light.

[0069] That is, the main control chip 10 transmits the first drive signal and the second drive signal to the light valve module 14 and the backlight module 13 respectively, which can be used to control whether the light valve module 14 is in a polarization state for transmitting left-eye polarized light associated with left-eye data, or in a polarization state for transmitting right-eye polarized light associated with right-eye data, and to control whether the backlight module 13 is in a display state or an off state; for example, the first drive signal and the second drive signal transmitted by the main control chip 10 can be used to control the backlight module 13 to be in a backlight-off state during a switching time period when the light valve module 14 is in a polarization state. A specific embodiment can be that during a switching time period when the light valve module 14 is in a polarization state for transmitting left-eye polarized light and a polarization state for transmitting right-eye polarized light, the backlight module 13 is controlled to be in an off state, that is, when the light valve module 14 switches in the polarization state, the backlight module 13 does not emit light.

[0070] It should be noted that when the light valve module 14 is in a polarization state that transmits left-eye polarized light, the 3D display device 100 can transmit the image to the user's left eye. When the light valve module 14 is in a polarization state that transmits right-eye polarized light, the 3D display device 100 can transmit the image to the user's right eye. After the user's left and right eyes receive different images, the image information in the brain is superimposed and regenerated to form an image with three-dimensional directional effects such as front-back, top-bottom, left-right, and near-far, thereby achieving a three-dimensional display effect. Furthermore, the main control chip 10 controls the 3D display device 100 to not emit light from the backlight module 13 during the time period when the images presented to the user's left and right eyes are switched. This helps prevent the backlight module 13 from emitting light during the time period when the light valve module 14 is switching between polarization states. This helps prevent the backlight module 13 from emitting light during the time period when the polarization state of the light valve module 14 is switching, thereby affecting the presentation of the left and right eye images, that is, preventing crosstalk between the image before the switch and the image after the switch, thereby ensuring that the user using the 3D display device 100 receives the three-dimensional display effect of the 3D image.

[0071] It should be added that the above-mentioned three-dimensional picture display effect is achieved by utilizing the binocular parallax principle of the human eye, that is, the left and right eyes of the human eye receive different pictures respectively, and then the brain regenerates the image information by superimposing it to form an image with three-dimensional directional effects such as front-back, up-down, left-right, far-near, etc., so that people can feel as if they are in the scene when watching movies or videos; therefore, in order to achieve this three-dimensional picture effect on a flat display device, the left and right eye images will be displayed in time; there will also be a switching time period between the left and right eye images. Although this time period for switching the left and right eye images is almost imperceptible to the human eye, if the backlight module 13 is in a light-emitting state during this time period, it will still have a certain impact on the display effects of the left eye image and the right eye image respectively displayed. Therefore, the present application proposes to control the three-dimensional display device 100 through the main control chip 10 so that the backlight module 13 does not emit light during the time period when the left eye and right eye images presented to the user are switched, so as to enhance the effect of the three-dimensional display device 100 displaying three-dimensional pictures.

[0072] It should be added that the present application aims to provide a main control chip 10, which is directly electrically connected to the graphics card module 11, the display control chip 12, the backlight module 13 and the light valve module 14, and the light valve module 14 is also electrically connected to the display control chip 12. Based on this structural setting inside the three-dimensional display device 100, when the main control chip 10 receives the picture data and picture refresh rate of the three-dimensional picture to be displayed transmitted by the graphics card module 11, and the display control chip 12 transmits the picture data to the light valve module 14, the main control chip 10 can directly parse the picture data to learn the current received picture data. Whether the picture data is left-eye data or right-eye data, the main control chip 10 can also directly calculate the driving signal that needs to be sent to the light valve module 14 and the backlight module 13 based on the left-eye data or the right-eye data, that is, calculate the first driving signal and the second driving signal, and then the main control chip 10 converts the calculated first driving signal into digital-to-analog format and transmits it to the light valve module 14, and transmits the calculated second driving signal to the backlight module 13, so as to realize the control of the backlight module 13 to present the backlight off state during the switching time period when the light valve module 14 is in the polarized state through the main control chip 10.

[0073] Obviously, the three-dimensional display device 100 of the present application can realize the transmission of electrical signals between the graphics card module 11, the display control chip 12, the backlight module 13 and the light valve module 14 through the main control chip 10 provided therein. The main control chip 10 can parse the image data it receives, calculate the driving signal based on the analysis result of the image data, and perform digital-to-analog conversion on at least the first driving signal in the driving signal; in addition, the main control chip 10 can also control the polarization state of the three-dimensional display device 100 based on the calculated first driving signal, and control the polarization state of the three-dimensional display device 100 based on the calculated second driving signal. The display state of the display device 100 is controlled; specifically, the main control chip 10 can directly control the backlight module 13 to be in the backlight-off state within the time period when the polarization state of the light valve module 14 is switched. The process of controlling the switching of the polarization state of the light valve module 14 is also directly controlled by the main control chip 10, that is, the main control chip 10 can directly control the luminous state of the backlight module 13 and the polarization state of the light valve module 14, without setting other control chips between the main control chip 10 and the backlight module 13, and without setting other control chips between the main control chip 10 and the light valve module 14. In summary, the structure and architecture of the 3D display device 100 provided in the present application, while achieving 3D image display by the 3D display device 100, eliminates the need for chips required for parsing image data and performing digital-to-analog conversion on the signal. That is, the 3D display device 100 provided in the present application can achieve normal operation of the 3D display device with a relatively small number of chips, thereby reducing the number of chips required in the 3D display device 100 and simplifying the hardware used in the 3D display device. This helps simplify the assembly steps and manufacturing process of the 3D display device 100, thereby reducing the manufacturing cost of the 3D display device 100. The reduced manufacturing cost of the 3D display device 100 helps further reduce its market price, thereby increasing the popularity of the 3D display device 100. Furthermore, due to the reduced number of chips, the driving process for achieving 3D image display by the 3D display device 100 is also simplified, which helps improve the image update efficiency of the 3D display device 100 and enhances the image display effect.

[0074] It should also be added that, in the component architecture of the three-dimensional display device 100 provided in the present application, a main control chip 10 and a graphics card module 11, a display control chip 12, a backlight module 13, and a light valve module 14 are directly electrically connected to each other, without any other chip structures being arranged in between. This is only an optional implementation method provided by the present application, but the present application is not limited to this. A small number of chip structures may also be added to enhance the picture display effect of the three-dimensional display device 100 without increasing the production cost as much as possible.

[0075] It should also be added that, with respect to the electrical connection between the light valve module 14 and the display control chip 12, the present application does not impose any specific restrictions on the electrical connection method between the two. For example, the electrical connection between the light valve module 14 and the display control chip 12 can be directly realized through connectors such as wiring, or the electrical connection between the light valve module 14 and the display control chip 12 can be realized through the main control chip 10 as a bridge. Other module structures can also be used as bridge components for the electrical connection between the light valve module 14 and the display control chip 12. It should also be noted that, because the light valve module 14 and the display screen of the display device are stacked in the 3D display device 100, the display screen is not shown in the accompanying drawings for clarity and simplicity of the 3D display device 100 module. The display control chip 12 provided in this application is electrically connected to the light valve module 14 to transmit image data to the light valve module 14. Specifically, the display control chip 12 transmits image data to the display screen (display unit) corresponding to the light valve module 14. The transmission of image data from the display control chip 12 to the screen can be unidirectional. After completing the transmission of image data to the display screen, the display control chip 12 notifies the main control chip 10 of the completion of the transmission. The image data transmitted by the display control chip 12 to the display screen is used to control whether the display screen displays the left-eye image or the right-eye image.

[0076] The above-mentioned display control chip 12 is correspondingly arranged in the display control board, which is a display screen control board commonly used in this field, or a display screen driver board. This application does not make specific restrictions on the model, size, specific functions that can be achieved, etc. of the display control board 12. The display control board 12 can be selected according to the design requirements of the three-dimensional display device 100.

[0077] FIG5 is another schematic diagram of the module architecture of the three-dimensional display device provided in an embodiment of the present application. Referring to FIG4 and FIG5 , in an exemplary embodiment, a signal amplification module 15 is further included.

[0078] The signal amplifying module 15 is electrically connected between the main control chip 10 and the light valve module 14 and is used to adjust the voltage value of the first driving signal.

[0079] Specifically, the present application also provides an optional implementation scheme, in which a signal amplification module 15 is further provided in the three-dimensional display device 100. The signal amplification module 15 can be provided between the main control chip 10 and the light valve module 14, so that the main control chip 10, the signal amplification module 15, and the light valve module 14 are connected in series in sequence. The signal amplification module 15 can at least be used to adjust the voltage value of the first driving signal sent by the main control chip 10 to the light valve module 14, so as to adjust the first driving signal sent by the main control chip 10 to a signal that can drive the light valve module 14, so as to avoid the mismatch between the signal size transmitted to the light valve module 14 and the signal size that can drive the light valve module 14, resulting in the inability to drive the light valve module 14; therefore, electrically connecting the signal amplification module 15 between the main control chip 10 and the light valve module 14 can at least achieve the adjustment of the voltage value of the first driving signal, which is beneficial to ensure the driving effect of the light valve module 14 and the display effect of the three-dimensional display device 100.

[0080] Furthermore, if the first drive signal emitted by the main control chip 10 is of a different type than the electrical signal recognized by the light valve module 14, that is, if the main control chip 10 does not convert the calculated first drive signal from a digital signal to an analog signal, the signal amplification module 15 may be configured to have a signal type conversion function so that the first drive signal transmitted to the light valve module 14 via the signal amplification module 15 can drive the light valve module 14. It should be noted that configuring the signal amplification module 15 with the signal type conversion function is merely an optional embodiment provided by the present application. If the main control chip 10 itself is capable of converting the signal type of the calculated drive signal, the signal amplification module 15 may be configured to only amplify the signal.

[0081] It should be noted that the present application does not limit the specific structure and specific type of the signal amplification module 15, as long as it can adjust the voltage value of the electrical signal, or further adjust the signal type of the electrical signal, so that the first driving signal emitted by the main control chip 10 can realize the driving control of the light valve module 14.

[0082] Please refer to FIG. 5 in combination with FIG. 2 to FIG. 4 . In an exemplary embodiment, the signal amplification module 15 is a dual-path H-bridge circuit (not shown).

[0083] This application provides an optional embodiment in which a dual H-bridge circuit is provided between the main control chip 10 and the light valve module 14 as a signal amplification module 15 to amplify the voltage of the first drive signal transmitted from the main control chip 10 to the light valve module 14. However, the use of a dual H-bridge circuit as the signal amplification module 15 is only one optional embodiment provided by this application and is not limited thereto. Other circuits capable of signal voltage amplification may also be used as the signal amplification module 15.

[0084] A specific embodiment can be provided here. At this time, the dual-path H-bridge circuit includes a first H-bridge circuit and a second H-bridge circuit. The first H-bridge circuit is used to output a first polarization signal to the light valve module 14 when receiving a high-level signal output by the main control chip 10, so as to control the polarization state of the light valve module 14 to be a polarization state for emitting the corresponding left-eye polarized light; the second H-bridge circuit is used to output a second polarization signal to the light valve module 14 when receiving a low-level signal output by the main control chip, so as to control the polarization state of the light valve module 14 to be a polarization state for emitting the corresponding right-eye polarized light.

[0085] It is understood that, based on the characteristics of the light valve, embodiments of the present application can pre-define: two H-bridge circuits with different voltage values ​​can respectively control the light valve to perform two different forms of movement. Specifically, the corresponding relationship between the two voltage values ​​and high and low levels can be set. For example, a high level can control the operation of the H-bridge circuit with a relatively large voltage value, and a low level can control the operation of the H-bridge circuit with a relatively small voltage value. For example, when the voltage input end of the first H-bridge circuit receives a high-level control signal output by the main control chip 10, the voltage output end of the first H-bridge circuit outputs a co-directional polarization signal to the light valve module 14; when the voltage input end of the second H-bridge circuit receives a low-level control signal output by the main control chip 10, the voltage output end of the second H-bridge circuit outputs a perpendicular polarization signal to the light valve module 14. In this way, the control signal output by the main control chip 10 can directly control the two dual H-bridge circuits with pre-configured voltage values ​​to output different forms of polarization signals, thereby achieving driving of the light valve module 14 in different polarization states.

[0086] Using a dual H-bridge circuit as the signal amplifying module 15 is beneficial for increasing the transmission speed of the first driving signal, thereby increasing the response speed of the light valve module 14 to the first driving signal and improving the display effect of the 3D display device 100 .

[0087] Because the light valve module 14 needs to have a polarization state corresponding to left-eye data and a polarization state corresponding to right-eye data, the present application provides an optional embodiment of the light valve module 14, in which the light valve module 14 can be configured as a dual-layer structure. For example, the light valve module 14 includes a first light valve and a second light valve, with the first and second light valves stacked along the thickness direction of the 3D display device 100. When the light valve module 14 is required to control light emitted from the light-emitting surface of the 3D display device 100 to have a first polarization direction, the film layer containing the first light valve can be controlled to regulate the polarization direction of the light passing through it, while the film layer containing the corresponding second light valve can be controlled not to regulate the polarization direction of the light passing through it. When the light valve module 14 is required to control light emitted from the light-emitting surface of the 3D display device 100 to have a second polarization direction, the film layer containing the second light valve can be controlled to regulate the polarization direction of the light passing through it, while the film layer containing the corresponding first light valve can be controlled not to regulate the polarization direction of the light passing through it.

[0088] Obviously, the polarization state of the light valve module 14 can be controlled based on the polarization state and transmittance state of the first and second light valves. The polarization state of the light valve module 14 may include a first polarization state and a second polarization state. In the first polarization state, the light passing through the light valve module 14 is controlled to have a first polarization direction, and emitted toward the light output surface of the 3D display device 100. In the second polarization state, the light passing through the light valve module 14 is controlled to have a second polarization direction, and the first polarization direction and the second polarization direction are perpendicular to each other. That is, the light valve module 14 in the first polarization state transmits left-eye polarized light corresponding to left-eye data, and the light valve module 14 in the second polarization state transmits right-eye polarized light corresponding to right-eye data.

[0089] When the light valve module 14 includes a first light valve and a second light valve, the first H-bridge circuit is used to output a first polarization signal to the first light valve in the light valve module 14 when receiving a high-level signal output by the main control chip 10, so as to control the light valve module 14 to be in the first polarization state; the second H-bridge circuit is used to output a second polarization signal to the second light valve in the light valve module 14 when receiving a low-level signal output by the main control chip 10, so as to control the light valve module 14 to be in the second polarization state.

[0090] Furthermore, the first light valve and the second light valve can both be liquid crystal light valves. The first polarization signal is used to control the deflection of the liquid crystal molecules in the first light valve, thereby placing the light valve module 14 in a first polarization state that transmits left-eye polarized light. The second polarization signal is used to control the deflection of the liquid crystal molecules in the second light valve, thereby placing the light valve module 14 in a second polarization state that transmits right-eye polarized light. The deflection direction of the liquid crystal molecules in the first light valve is different from the deflection direction of the liquid crystal molecules in the second light valve.

[0091] Because the light valve module 14 needs to have a polarization state corresponding to left-eye data and a polarization state corresponding to right-eye data, the present application further provides an optional embodiment of the light valve module 14, wherein the light valve module 14 can be configured as a single-layer structure. Specifically, when the light valve module 14 is required to control the light passing through it to be emitted toward the light-emitting surface of the 3D display device 100 to have a first polarization direction, the single-layer light valve module 14 can be controlled to be in the first polarization state. The light valve module 14 in the first polarization state is used to transmit the left-eye polarized light corresponding to the left-eye data. Conversely, when the light valve module 14 is required to control the light passing through it to be emitted toward the light-emitting surface of the 3D display device 100 to have a second polarization direction, the single-layer light valve module 14 can be controlled to be in the second polarization state. The light valve module 14 in the second polarization state is used to transmit the right-eye polarized light corresponding to the right-eye data.

[0092] The single-layer light valve module 14 corresponds to the first H-bridge circuit in the electrically connected dual-path H-bridge circuit, and is used to output a first polarization signal to the light valve module 14 when receiving a high-level signal output by the main control chip 10, so as to control the light valve module 14 to be in the first polarization state; the second H-bridge circuit in the electrically connected dual-path H-bridge circuit corresponds to the electrically connected light valve module 14 when receiving a low-level signal output by the main control chip 10, so as to control the light valve module 14 to be in the second polarization state.

[0093] Furthermore, the single-layer light valve module 14 can also be a liquid crystal light valve. The first polarization signal is used to control the liquid crystal molecules in the liquid crystal light valve to deflect toward a first direction, so that the light valve module 14 is in a first polarization state that transmits left-eye polarized light. The second polarization signal is used to control the liquid crystal molecules in the liquid crystal light valve to deflect toward a second direction different from the first direction, so that the light valve module 14 is in a second polarization state that transmits right-eye polarized light.

[0094] It should be added that the light valve module 14 is a double-layer setting or a single-layer setting, both of which are optional implementation methods provided by the present application. The present application does not limit the specific structure of the light valve module 14. The detailed structure of the light valve module 14 can be selected according to actual needs. As long as the light valve module 14 can have two different polarization states at different display times, it is used to control the light emitted after passing through the light valve module 14 with different polarization states to have different polarization directions, so as to display the required picture to different users' eyes.

[0095] In addition, the present application also provides several optional implementations of the light valve module 14. A single-layer light valve module 14 includes multiple first light valves and multiple second light valves, wherein the first light valves and the second light valves can be arranged alternately within the display area of ​​the three-dimensional display device 100. For example, along the horizontal and vertical directions of the display area, the first light valves and the second light valves can be arranged alternately, that is, the first light valves and the second light valves are arranged in a checkerboard pattern. Alternatively, for example, a single-layer light valve module 14 can be arranged such that the first light valves and the second light valves are arranged alternately along only one direction. For example, along one direction, only one first light valve and one second light valve are arranged adjacent to each other. As long as the light valve module 14 can control the light emitted from it to the light-emitting surface of the three-dimensional display device 100 to have different polarization directions in the first polarization state and the second polarization state, respectively, it is sufficient.

[0096] It should be noted that the several optional settings of the light valve module 14 provided in this application need to be coordinated with other structures in the three-dimensional display device 100 to display three-dimensional images. This application does not limit the specific settings of other structural layers and structural components in the three-dimensional display device 100, as long as the other structural layers and structural components can cooperate with the light valve module 14 to realize the display of three-dimensional images.

[0097] It should be added that the light valve module 14 provided in this application includes the first light valve and the second light valve, which is only an optional implementation provided in this application, but this application is not limited to this. The light valve module 14 can also be set to include 3, 4, 5 or more light valves.

[0098] 4 and 5 , in an exemplary embodiment, the signal amplifying module 15 includes a first-stage amplifying module 51 and a second-stage amplifying module 52 ;

[0099] The first-stage amplifier module 51 is electrically connected between the main control chip 10 and the second-stage amplifier module 52, and the second-stage amplifier module 52 is electrically connected to the light valve module 14; the first-stage amplifier module 51 is used to adjust the first voltage value V1 of the received first drive signal to the second voltage value V2, and the second-stage amplifier module 52 is used to adjust the second voltage value V2 received to the third voltage value V3, |V1|<|V2|<|V3|.

[0100] Specifically, since the voltage value of the electrical signal output by the main control chip 10 may be relatively small, if it is directly transmitted to the light valve module 14, it may not be able to achieve the ability to drive the light valve module 14 to adjust the polarization state. Therefore, the present application also provides an optional implementation of the signal amplification module 15, in which the signal amplification module 15 includes a first-stage amplification module 51 and a second-stage amplification module 52 connected in series. At this time, the first end of the first-stage amplification module 51 is electrically connected to the main control chip 10, and the second end is electrically connected to the first end of the second-stage amplification module 52. The second end of the second-stage amplification module 52 is electrically connected to the light valve module 14, so as to realize the series connection between the main control chip 10, the first-stage amplification module 51, the second-stage amplification module 52, and the light valve module 14. The first-stage amplification module 51 can be used to adjust the polarization state of the first-stage amplification module 51 emitted by the main control chip 10. The voltage value of a driving signal is adjusted, for example, it is used to increase the first voltage value V1 of the first driving signal to the second voltage value V2, and the second-stage amplifier module 52 is used to increase and adjust the received second voltage value V2 to obtain the third voltage value V3 and then transmit it to the light valve module 14. That is, the first-stage amplifier module 51 and the second-stage amplifier module 52 increase the voltage value of the electrical signal layer by layer, and increase the first voltage value V1 of the first driving signal output by the main control chip 10 to the third voltage value V3 and then transmit it to the light valve module 14, so that the light valve module 14 receives the first driving signal with a voltage value of V3, which is used to drive the light valve module 14 through the electrical signal with a higher voltage value, so as to realize the control of different display (polarization) states of different areas of the light valve module 14 and ensure the display effect of the three-dimensional display device 100.

[0101] Since the adjustment effect of the voltage value of the electrical signal by only setting a first-stage amplification module may not necessarily achieve the effect required by the design, that is, the voltage adjustment ability of a single first-stage amplification module may be insufficient, the technical solution provided by the present application is to set the signal amplification module 15 to include two or more orders of magnitude of amplification modules, so as to realize the adjustment of the voltage value of the electrical signal in a step-by-step manner, thereby ensuring that the voltage value of the electrical signal output after processing by the signal amplification module 15 is the required voltage value, which is conducive to making the working voltage received by the light valve module 14 more stable, and can also reduce the probability of screen flickering, thereby improving the user experience of the VR all-in-one machine.

[0102] It should be added that the signal amplification module 15 provided in the present application includes a first-stage amplification module 51 and a second-stage amplification module 52 connected in series, which is only an optional implementation provided in the present application, but the present application is not limited to this. On the basis of controlling the production cost and thinness of the three-dimensional display device 100, the signal amplification module 15 can also be set to include 3, 4, 5 or more sub-amplification modules connected in series.

[0103] It should also be noted that the first-stage amplifier module 51 and the second-stage amplifier module 52 included in the signal amplification module 15, in addition to amplifying the voltage value of the electrical signal, can also be used to reduce the voltage value, adjust the type of the electrical signal, and so on, if necessary. For example, if the main control chip 10 does not have the function of converting the type of the electrical signal, a signal amplification module 15 that has both voltage amplification and electrical signal type conversion functions can be selected.

[0104] 4 and 5 , in an exemplary embodiment, the first-stage amplification module 51 is a dual-channel operational amplifier in the same direction.

[0105] Specifically, when the signal amplification module 15 disposed between the main control chip 10 and the light valve module 14 in the three-dimensional display module 100 includes a first-stage amplification module 51 and a second-stage amplification module 52, the present application provides an optional implementation method, wherein the first-stage amplification module 51 can optionally adopt a dual-channel operational amplifier non-inverting amplifier; however, the present application is not limited to this. For example, a three-channel operational amplifier non-inverting amplifier, or a four-channel operational amplifier non-inverting amplifier, or an eight-channel operational amplifier non-inverting amplifier, etc. can also be selected. The specific type of the first-stage amplification module 51 can be selected according to the design requirements of the three-dimensional display device 100; as long as it can achieve at least an increase in the voltage value of the first drive signal.

[0106] 4 , in an exemplary embodiment, the second-stage amplifying module 52 includes at least two driving units 521 , each driving unit 521 controlling the polarization state of a portion of the light valve module 14 .

[0107] Specifically, when the signal amplification module 15 disposed between the main control chip 10 and the light valve module 14 in the display module includes a first-stage amplification module 51 and a second-stage amplification module 52, the present application provides an alternative embodiment in which the second-stage amplification module 52 may include two or more cascade-connected drive units 521. Each drive unit 521 may be electrically connected to a portion of the light valve module 14 to control the polarization state of a portion of the light valve module 14. For example, if the light valve module 14 is divided into 20 sub-regions from top to bottom, the second-stage amplification module 52 may include 20 cascade-connected drive units 521, each drive unit 521 being configured to control the polarization state of a corresponding sub-region. Of course, the number of 20 drive units 521 mentioned here is merely one alternative embodiment provided by the present application and is not limited thereto. By providing different drive units 521 to control the polarization state of different regions of the light valve module 14, the control of the light valve module 14 can be refined, thereby further improving the display quality of the three-dimensional display device 100. There is no need to provide corresponding second-stage amplification modules for light valves in different regions, which helps reduce the number of structural components in the three-dimensional display device 100, thereby reducing the production cost and assembly process of the three-dimensional display device 100.

[0108] It should also be added that the cascade connection of the multiple driving units 521 included in the second-stage amplification module 52 is only an optional implementation method provided by the present application, but the present application is not limited to this. Therefore, the cascade connection method between the driving units 521 is not shown in the accompanying drawings, and the electrical connection relationship between the multiple driving units 521 can be selected according to design requirements; in addition, if required by the design, it can also be selected that there is no electrical connection relationship between any two driving units 521, and the driving unit 521 is only used to electrically connect a part of the area of ​​the light valve module 14 and the first-stage amplification module 51.

[0109] FIG6 is a schematic diagram of a second-stage amplification module according to an embodiment of the present application, and FIG7 is a schematic diagram of a light valve module according to an embodiment of the present application. Referring to FIG6 and FIG7 in conjunction with FIG4 , in an exemplary embodiment, along the thickness direction of the three-dimensional display device 100, the light valve module 14 includes a first liquid crystal light valve 43 and a second liquid crystal light valve 44 stacked together.

[0110] The second-stage amplification module 52 includes at least a first driving unit 522 and a second driving unit 523 . The first driving unit 522 is used to control the polarization state of the first liquid crystal light valve 43 in the light valve module 14 . The second driving unit 523 is used to control the polarization state of the second liquid crystal light valve 44 in the light valve module 14 .

[0111] Specifically, when the signal amplification module 15 arranged between the main control chip 10 and the light valve module 14 in the display module includes a first-stage amplification module 51 and a second-stage amplification module 52, the present application provides an optional implementation method, in which the second-stage amplification module 52 may include two or more driving units; taking the light valve module 14 including the first liquid crystal light valve 43 and the second liquid crystal light valve 44 as an example, the second-stage amplification module 52 may be provided with a cascade-connected first driving unit 522 and a second driving unit 523, wherein the first driving unit 522 is electrically connected to the first liquid crystal light valve 43 of the light valve module 14, and the second driving unit 523 is electrically connected to the second liquid crystal light valve 44 of the light valve module 14, and the electrical signal transmitted through the first driving unit 522 is used to control the polarization state of the first liquid crystal light valve 43, and the electrical signal transmitted through the second driving unit 523 is used to control the polarization state of the second liquid crystal light valve 44. That is, the first driving unit 522 and the second driving unit 523 are respectively used to control the movement of liquid crystal molecules in different film layers in the light valve module 14, so as to realize that the light valve module 14 presents different polarization states. There is no need to separately set corresponding second-stage amplification modules 52 for the first liquid crystal light valve 43 and the second liquid crystal light valve 44, which is beneficial to reducing the number of structural components set in the three-dimensional display device 100, thereby helping to reduce the production cost and assembly process of the three-dimensional display device 100.

[0112] Of course, the second-stage amplification module 52 mentioned here includes a number of driving units corresponding to the number of liquid crystal light valves in the light valve module 14, which is only an optional implementation provided by the present application, but the present application is not limited thereto.

[0113] It should also be added that the first driving units 522 included in the second-stage amplification module 52 can be electrically connected to each other through a cascade connection, and the second driving units 523 can be electrically connected to each other through a cascade connection; this cascade connection electrical connection method is only an optional implementation method provided by the present application, and the present application is not limited to this. The electrical connection relationship between multiple driving units can be selected according to design requirements. In addition, if required by the design, it can also be selected that there is no electrical connection relationship between the driving units, and they are only used to electrically connect partial areas of each light valve in the light valve module 14 and the first-stage amplification module 51.

[0114] 2 to 6 , in an exemplary embodiment, the polarization state of the light valve module 14 includes at least a first polarization state for transmitting a first polarized light, and a second polarization state for transmitting a second polarized light, wherein the polarization direction of the first polarized light intersects the polarization direction of the second polarized light.

[0115] The first polarized light is the polarized light corresponding to the left-eye data, and the second polarized light is the polarized light corresponding to the right-eye data.

[0116] Specifically, the present application provides an optional implementation scheme in which the polarization state of the light valve module 14 includes a first polarization state and a second polarization state, wherein the light valve module 14 in the first polarization state is used to transmit the left eye polarized light (first polarized light) corresponding to the left eye data, and the light valve module 14 in the second polarization state is used to transmit the right eye polarized light (second polarized light) corresponding to the right eye data. For example, when the three-dimensional display device 100 plays the left-eye image, the light valve module 14 is used to transmit the first polarized light, and the polarization direction of the first polarized light is the same as the polarization direction of the user's left eye lens and perpendicular to the polarization direction of the user's right eye lens, so as to ensure that the user's left eye can clearly see the image played by the three-dimensional display device 100, while the right eye cannot see the image; correspondingly, when the three-dimensional display device 100 plays the right-eye image, the light valve module 14 is used to transmit the second polarized light, and the polarization direction of the second polarized light is the same as the polarization direction of the user's right eye lens and perpendicular to the polarization direction of the user's left eye lens, so as to ensure that the user's right eye can clearly see the image played by the three-dimensional display device 100, while the left eye cannot see the image; thereby, the left and right eyes can see different images respectively, producing a 3D stereoscopic effect.

[0117] It should be noted that the polarization directions of the first polarized light and the second polarized light intersect, and specifically, the polarization directions of the first polarized light and the second polarized light are perpendicular to each other. Correspondingly, the polarization directions of the left eyeglass and the right eyeglass are also perpendicular to each other.

[0118] 2 to 5 and 7 , in an exemplary embodiment, along the thickness direction of the 3D display device 100 , the light valve module 14 includes a first liquid crystal light valve 43 and a second liquid crystal light valve 44 that are stacked.

[0119] When the light valve module 14 is in the first polarization state, the first liquid crystal light valve 43 rotates to a first preset angle, the second liquid crystal light valve 44 rotates to a second preset angle, and the second liquid crystal light valve 44 is in a fully transparent state relative to the first liquid crystal light valve 43;

[0120] When the light valve module 14 is in the second polarization state, the first liquid crystal light valve 43 rotates by a third preset angle, the second liquid crystal light valve 44 rotates by a fourth preset angle, and the first liquid crystal light valve 43 is in a fully transparent state relative to the second liquid crystal light valve 44 .

[0121] Specifically, the present application provides an optional embodiment in which the light valve module 14 includes a first liquid crystal light valve 43 and a second liquid crystal light valve 44 stacked together. The first polarization state of the light valve module 14 can be achieved by controlling the first liquid crystal light valve 43 to be in the first polarization state and the second liquid crystal light valve 44 to be in a fully light-transmitting state. Specifically, the liquid crystal molecules in the first liquid crystal light valve 43 can be controlled to rotate by a first preset angle, while the liquid crystal molecules in the second liquid crystal light valve 44 can be controlled to rotate by a second preset angle, so as to control the light that passes through the light valve module 14 and is emitted toward the light-emitting surface of the three-dimensional display device 100 to have a first polarization direction. At this time, the second liquid crystal light valve in the fully light-transmitting state The second liquid crystal light valve 44 does not adjust the deflection direction of the light emitted through it; the second polarization state of the light valve module 14 can be achieved by controlling the second liquid crystal light valve 44 to be in the second polarization state and the first liquid crystal light valve 43 to be in the fully light-transmitting state. Specifically, the liquid crystal molecules in the second liquid crystal light valve 44 can be controlled to rotate by a fourth preset angle, while the liquid crystal molecules in the first liquid crystal light valve 43 can be controlled to rotate by a third preset angle, so as to control the light emitted through the light valve module 14 to the side of the light-emitting surface of the three-dimensional display device 100 to have a second polarization direction. At this time, the first liquid crystal light valve 43 in the fully light-transmitting state does not adjust the deflection direction of the light emitted through it.

[0122] That is, the polarization state of the light valve module 14 can be controlled based on the polarization state and transmittance state of the first and second liquid crystal light valves 43, 44. Specifically, the rotation state of the liquid crystal molecules in the first and second liquid crystal light valves 43, 44 is adjusted. When the first liquid crystal light valve 43 in the light valve module 14 is in a first polarization state and the second liquid crystal light valve 44 is in a fully transmittance state, the light valve module 14 transmits left-eye polarized light corresponding to left-eye data. When the first liquid crystal light valve 43 in the light valve module 14 is in a fully transmittance state and the second liquid crystal light valve 44 is in a second polarization state, the light valve module 14 transmits right-eye polarized light corresponding to right-eye data. During the time corresponding to one polarization state of the light valve module 14, the deflection direction of the liquid crystal molecules in the first and second liquid crystal light valves 44 differs. In this way, by controlling the rotation state of the liquid crystal molecules in the first liquid crystal light valve 43 and the second liquid crystal light valve 44, the light valve module 14 is placed in the first polarization state or the second polarization state, so as to control the polarization direction of the light emitted from the light-emitting surface of the three-dimensional display device 100 through the light valve module 14 differently, so that the light valve module 14 controls the three-dimensional display device 100 to display images to the left eye and the right eye of the user respectively in the first polarization state and the second polarization state, thereby meeting the demand of the three-dimensional display device 100 to provide different images to different eyes of the user at different times.

[0123] Please refer to FIG7 in conjunction with FIG4 and FIG5. In an exemplary embodiment, the first driving signal includes at least a first sub-signal and a second sub-signal;

[0124] The first sub-signal is used to control the first liquid crystal light valve 43 to be at a first preset angle or a third preset angle;

[0125] The second sub-signal is used to control the second liquid crystal light valve 44 to be at the second preset angle or the fourth preset angle.

[0126] Specifically, the present application also provides an optional implementation scheme, in which the light valve module 14 includes a first liquid crystal light valve 43 and a second liquid crystal light valve 44 arranged in a stacked manner. The first polarization state of the light valve module 14 can be achieved by controlling the first liquid crystal light valve 43 to be in a first polarization state and the second liquid crystal light valve 44 to be in a fully light-transmitting state; the second polarization state of the light valve module 14 can be achieved by controlling the second liquid crystal light valve 44 to be in a second polarization state and the first liquid crystal light valve 43 to be in a fully light-transmitting state. Based on this, the first driving signal output by the main control chip 10 to the light valve module 14 can be optionally set to include a first sub-signal and a second sub-signal. It can be further set that the first sub-signal is used to be transmitted to the first liquid crystal light valve 43 to achieve control of the first liquid crystal light valve 43 being in a first polarization state or a light transmission state, that is, to achieve control of the liquid crystal molecules in the first liquid crystal light valve 43 rotating to a first preset angle or a third preset angle; the second sub-signal is used to be transmitted to the second liquid crystal light valve 44 to achieve control of the second liquid crystal light valve 44 being in a second polarization state or a light transmission state, that is, to achieve control of the liquid crystal molecules in the second liquid crystal light valve 44 rotating to a second preset angle or a fourth preset angle.

[0127] For example, when the first sub-signal is transmitted from the main control chip 10 to the light valve module 14, the first liquid crystal light valve 43 receives the first sub-signal and can drive the first liquid crystal light valve 43 to a first polarization state. That is, the first sub-signal at this time is used to drive the liquid crystal molecules in the first liquid crystal light valve 43 to rotate by a first preset angle. At the same time, the second liquid crystal light valve 44 receives the second sub-signal transmitted from the main control chip 10. The second sub-signal drives the second liquid crystal light valve 44 to a fully light-transmitting state. That is, the second sub-signal at this time is used to drive the liquid crystal molecules in the second liquid crystal light valve 44 to rotate by a second preset angle. For example, when a first sub-signal is transmitted from the main control chip 10 to the light valve module 14, the first liquid crystal light valve 43 receives the first sub-signal and is driven to a fully transparent state. Specifically, the first sub-signal is used to drive the liquid crystal molecules in the first liquid crystal light valve 43 to rotate by a third preset angle. Simultaneously, the second liquid crystal light valve 44 receives the second sub-signal transmitted from the main control chip 10. This second sub-signal drives the second liquid crystal light valve 44 to a second polarization state. Specifically, the second sub-signal is used to drive the liquid crystal molecules in the second liquid crystal light valve 44 to rotate by a fourth preset angle. This configuration allows different sub-signals to drive different liquid crystal light valves, facilitating accurate control of the polarization state or transmittance state of the first and second liquid crystal light valves 43, 44, respectively. This avoids crosstalk during signal transmission, improves control of the different light valves in the light valve module 14, and thereby enhances the display quality of the three-dimensional display device 100.

[0128] The first sub-signal used to drive the liquid crystal molecules in the first liquid crystal light valve 43 to rotate by a first preset angle and a third preset angle can have different voltage values. Similarly, the second sub-signal used to drive the liquid crystal molecules in the second liquid crystal light valve 44 to rotate by a second preset angle and a fourth preset angle can have different voltage values. Furthermore, in addition to different voltage values, different signal types can also be used to control the liquid crystal molecules to have different rotation angles.

[0129] Another optional embodiment provided herein is that, when the light valve module 14 is a single-layer liquid crystal light valve, a first sub-signal can be transmitted to the liquid crystal light valve. The first sub-signal is used to control the liquid crystal molecules in the liquid crystal light valve to rotate by a preset angle, thereby controlling the liquid crystal light valve to be in a first polarization state. A second sub-signal can be transmitted to the liquid crystal light valve. The second sub-signal is used to control the liquid crystal molecules in the liquid crystal light valve to rotate by a preset angle, thereby controlling the liquid crystal light valve to be in a second polarization state. The first and second sub-signals can optionally use the same signal transmission path, but have different transmission times. This configuration can reduce the number of signal traces in the 3D display device 100, eliminating the need to set separate signal transmission paths for the first and second sub-signals, further reducing the manufacturing cost of the 3D display device 100. This is only one optional embodiment provided herein; of course, the first and second sub-signals can also be transmitted using different signal lines (paths).

[0130] 4 and 5 , in an exemplary embodiment, the graphics card module 11 transmits the image data and image refresh rate of the 3D image to be displayed to the main control chip 10 ;

[0131] The graphics card module 11 also transmits picture data to the display control chip 12 via an HDMI or DP signal line;

[0132] When the light valve module 14 is in the polarization state corresponding to the left eye data, the three-dimensional display device 100 displays the picture corresponding to the left eye data; when the light valve module 14 is in the polarization state corresponding to the right eye data, the three-dimensional display device 100 displays the picture corresponding to the right eye data; by alternately displaying the pictures corresponding to the left eye data and the right eye data, the display of the three-dimensional picture is achieved.

[0133] Specifically, the present application also provides an optional implementation method in which the graphics card module 11 and the main control chip 10 are electrically connected, and the graphics card module 11 can transmit the picture refresh rate of the three-dimensional picture to be displayed, and the left eye data or right eye data in the picture data to the main control chip 10; further, a USB interface 19 can be optionally provided between the graphics card module 11 and the main control chip 10. At this time, the picture refresh rate and picture data will be transmitted to the main control chip 10 through the USB (Universal Serial Bus) interface 19; the USB interface 19 here can be used to realize the access of some external devices to realize the transmission of external resource data to the main control chip 10, thereby improving the practical functionality of the three-dimensional display device 100.

[0134] It should be added that setting the graphics card module 11 and the main control chip 10 to be directly electrically connected, or setting the graphics card module 11 and the main control chip 10 to include a USB interface 19, are both optional implementations provided by this application, and this application does not specifically limit this. In addition, the graphics card module 11 and the display control chip 12 are electrically connected via an HDMI signal line or a DP signal line (not shown), and the graphics card module 11 can transmit the left eye image or the right eye image in the image data to the display control chip 12 via the HDMI signal line or the DP signal line. Among them, HDMI (High Definition Multimedia Interface) is a high-definition multimedia signal interface, and DP (DisplayPort) is a high-definition digital display interface. Both can be used to realize at least the transmission of digital video and audio, and both can ensure the good transmission of audio and video, so that the image finally displayed to the user's human eye by the three-dimensional display device 100 has good clarity, ensuring the display effect of the three-dimensional display device 100.

[0135] That is, the image data transmitted by the graphics module 11 to the main control chip 10 includes left-eye data or right-eye data to be used to control the polarization state of the light valve module 14. The image data transmitted by the graphics module 11 to the display control chip 12 includes whether the image to be displayed by the 3D display device 100 is the left-eye image or the right-eye image; that is, the content of the image data transmitted by the graphics module 11 to the main control chip 10 and the display control chip 12 is different.

[0136] It should be added that the data transmission between the graphics card module 11 and the display control chip 12 uses HDMI or DP signal lines, which is only an optional implementation method provided by this application, but this application is not limited to this, and other signal lines that can achieve the same effect can also be used.

[0137] 2 to 5 and 7 , the present application further provides an optional embodiment in which, when the light valve module 14 is controlled to be in a first polarization state, the first (liquid crystal) light valve in the 3D display device 100 is in the first polarization state, and the second (liquid crystal) light valve is in a fully transparent state. In this case, the 3D display device 100 specifically displays a picture corresponding to the left-eye data to provide a left-eye picture to the user's left eye. When the light valve module 14 is controlled to be in a second polarization state, the second light valve in the 3D display device 100 is in the second polarization state, and the first light valve is in a fully transparent state. In this case, the 3D display device 100 specifically displays a picture corresponding to the right-eye data to provide a right-eye picture to the user's right eye. That is, the main control chip 10 controls the transmission of the first and second sub-signals to the light valve module 14, and the display control chip 12 controls the transmission of the left-eye picture and the right-eye picture to the display screen. Specifically, the left-eye picture and the right-eye picture are alternately displayed, and the left-eye picture is alternately transmitted to the left eye and the right eye of the user, thereby realizing the display of a 3D picture.

[0138] Among them, the light valve module 14 is in a first polarization state, that is, the light valve module 14 is in a polarization state corresponding to the left eye data, so that the three-dimensional display device 100 provides a left-eye image to the user's left eye, while the right eye cannot see the image; the light valve module 14 is in a second polarization state, that is, the light valve module 14 is in a polarization state corresponding to the right eye data, so that the three-dimensional display device 100 provides a right-eye image to the user's right eye, while the left eye cannot see the image.

[0139] 4 and 5 , in an exemplary embodiment, a backlight driver chip 18 is further included;

[0140] The backlight driver chip 18 is electrically connected between the backlight module 13 and the main control chip 10 , and is used to implement electrical signal transmission between the backlight module 13 and the main control chip 10 .

[0141] Specifically, the present application also provides an optional implementation method, in which a backlight driver chip 18 is set between the main control chip 10 and the backlight module 13. The backlight driver chip 18 can be used to adjust the display brightness of the backlight module 13. That is, the backlight driver chip 18, on the basis of realizing that the main control chip 10 transmits the driving signal of turning the backlight on or off to the backlight module 13, can also realize the regulation of different brightness display effects of the backlight module 13, which is conducive to meeting the diverse display requirements of the three-dimensional display device 100, and can also enhance the user experience of the three-dimensional display device 100.

[0142] It should be noted that the present application does not specifically limit the display mode of the 3D display device 100. Any of the following formats can be selected: Frame Sequential, Frame Packing, Side By Side, or Top And Bottom. However, compared to the side-by-side and top-and-bottom formats, both side-by-side and top-and-bottom formats will lose resolution, while frame sequential display does not. Therefore, the 3D display device 100 provided in the present application can select the frame sequential mode.

[0143] 4 and 5 , in the 3D display device 100 provided by the present application, when the 3D software program installed in the 3D display device 100 is opened, the graphics card module 11 can notify the main control chip 10 via a USB command that the 3D display mode of the 3D display device 100 is turned on, so that the main control chip 10 enters the frame sequential mode. After receiving the notification of entering the frame sequential mode, the main control chip 10 can notify the display control chip 12 via a UART (Universal Asynchronous Receiver / Transmitter) command via the serial port to enter the frame sequential mode of the 3D display mode. At the same time, the graphics card module 11 processes the data of the 3D image to be displayed (left eye image and right eye image) and transmits the left eye image or right eye image to the display control chip 12 via HDMI or DP. After receiving the left eye image or right eye image of the 3D image to be displayed, the display control chip 12 outputs it to the light valve module 14 (the screen of the 3D display device 100). When the data is completed, the display control chip 12 notifies the main control chip 10 via IO (Input / Output) The refresh is completed, that is, the display control chip 12 notifies the main control chip 10 of the completion of the data refresh through a synchronization pulse; at this time, the graphics card module 11 will notify the main control chip 10 of the actual refresh rate of the current 3D picture and the current left and right eye data through the USB interface 19. The main control chip 10 combines the received left and right eye signals (USB real-time data) and the refresh completion signal of the display control chip 12, and controls the output of the driving signals corresponding to the left and right light valves after algorithm calculation. The driving signal is amplified in the same direction by the operational amplifier through the dual H-bridge IO or DACOUT to drive the liquid crystal light valve (left and right eye) switch; at the same time, the backlight of the LCD (Liquid Crystal Display) backlight module 13 is controlled to flash, ensuring that the backlight is turned off when the left and right eye data display is switched; finally, the human eye can achieve a visible 3D display effect by wearing polarized glasses.

[0144] It should also be noted that, as shown in Figures 4 and 5, the main control chip 10 can be further electrically connected to modules such as a USB port 91, an infrared light board 92, a keypad 93, and a Bluetooth interface 94. However, these modules are only optional modules that can be configured in the three-dimensional display device 100 provided in this application, but are not limited to this. The three-dimensional display device 100 can also include only some of these modules, or can also include other modules. The USB port 91 can be used to connect external peripherals, such as an external mobile phone or other electronic device; the infrared light board 92 is used to install infrared lights; the keypad 93 is used to install mechanical buttons; and the Bluetooth interface 94 is used to install a Bluetooth module.

[0145] It should also be added that the main control chip 10 provided in the present application is provided with a first interface for receiving the picture data and picture refresh rate transmitted by the graphics card module 11, and is also provided with a second interface for converting the digital signal into an analog signal and then outputting it to the light valve module 14; before the main control chip 10 is used, at least the above-mentioned first interface and second interface in the main control chip 10 will be functionally configured in advance, so that the main control chip 10 can analyze the picture data of the three-dimensional picture to be displayed after receiving it through the first interface, so as to find out whether the three-dimensional display device will provide the picture to the user's left eye or the user's right eye, that is, to find out whether the received data is left-eye data or right-eye data; and after the main control chip 10 calculates the first driving signal that needs to be transmitted to the light valve module 14, it converts it into digital-to-analog and outputs it through the second interface.

[0146] FIG8 is another schematic diagram of the module architecture of a three-dimensional display device provided in an embodiment of the present application. Referring to FIG8 in conjunction with FIG2-FIG7 , the present application further provides a three-dimensional display device 100, comprising a display control chip 12, and a graphics card module 11, a backlight module 13, and a light valve module 14 electrically connected to the display control chip 12; wherein:

[0147] The display control chip 12 is used to analyze the image data and image refresh rate of the 3D image to be displayed, after receiving the image data and image refresh rate transmitted by the graphics card module 11 and transmitting the image data to the light valve module 14, to confirm whether the image data is left-eye data or right-eye data;

[0148] The display control chip 12 is further configured to calculate a first drive signal and a second drive signal based on the left-eye data or the right-eye data, and to perform digital-to-analog conversion on at least the first drive signal;

[0149] The display control chip 12 is also used to transmit a first drive signal to the light valve module 14 and a second drive signal to the backlight module 13 to control the current polarization state of the light valve module 14 and control the backlight module 13 to be in a backlight-off state during the switching period when the light valve module 14 is in the polarization state.

[0150] Specifically, the three-dimensional display device 100 shown in Figure 8 provided by the present application has a display control chip 12 that integrates the functions of the main control chip 10 in the three-dimensional display device 100 shown in Figure 3, which can further reduce the number of chips set in the three-dimensional display device 100 and further reduce the production cost of the three-dimensional display device 100. During use of the 3D display device 100 shown in FIG8 , when the 3D display device 100 opens a 3D software program, the graphics card module 11 notifies the display control chip 12 to enter frame sequential mode. Upon receiving the notification, the display control chip 12 enters frame sequential mode and simultaneously transmits the image data (left-eye and right-eye images) processed by the graphics card to the display control chip 12 via HDMI or DP. When the display control chip 12 receives the left-eye or right-eye image and outputs the left-eye or right-eye image to the screen (on the light valve module 14 side), the graphics card module 11 transmits the actual refresh rate of the current 3D image and the current left-eye and right-eye data to the display control chip 12. The display control chip 12 combines the received left-eye and right-eye signals with the signal indicating that the image data has been refreshed to the screen, calculates the image data to be refreshed to the screen, and outputs a drive signal to the light valve module 14 after algorithmic calculation to control the polarization state of the light valve module 14. The display control chip 12 also controls the LCD backlight to flicker, ensuring that the backlight of the backlight module 13 is turned off when the left-eye and right-eye data are switched. Finally, the human eye can achieve a visible 3D display effect by wearing polarized glasses.

[0151] It can be understood that the three-dimensional display device 100 in the embodiment of the present application can be any product or component with a display function, such as an LCD display device, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a wearable device, an Internet of Things device, etc., and the embodiments disclosed in this application are not limited to this.

[0152] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0153] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A three-dimensional display device, characterized in that, It includes a main control chip, a graphics card module, a display control chip, a backlight module, and a light valve module that are respectively electrically connected to the main control chip, and the light valve module is also electrically connected to the display control chip; wherein: The main control chip is configured to, when receiving the picture data and the picture refresh rate of the three-dimensional picture to be displayed transmitted by the graphics card module, and when the display control chip transmits the picture data to the light valve module, parse the picture data to confirm whether the picture data is left-eye data or right-eye data; The main control chip is further configured to calculate a first driving signal and a second driving signal based on the left-eye data or the right-eye data, and perform at least digital-to-analog conversion on the first driving signal; The main control chip is further configured to transmit the first driving signal to the light valve module and transmit the second driving signal to the backlight module to control the current polarization state of the light valve module, and control the backlight module to present a backlight-off state during the switching time period when the light valve module is in the polarization state switching; 2. The three-dimensional display device according to claim 1, characterized in that It further includes a signal amplification module; The signal amplification module is electrically connected between the main control chip and the light valve module and is used to adjust the voltage value of the first driving signal.

3. The three-dimensional display device according to claim 2, wherein The signal amplification module is a dual-channel H-bridge circuit.

4. The three-dimensional display device according to claim 3, wherein The polarization state of the light valve module includes at least a first polarization state and a second polarization state; The dual-channel H-bridge circuit includes a first H-bridge circuit and a second H-bridge circuit; wherein, the first H-bridge circuit is used to control the light valve module to be in the first polarization state, and the second H-bridge circuit is used to control the light valve module to be in the second polarization state.

5. The three-dimensional display device according to claim 2, wherein, The signal amplification module includes a first-stage amplification module and a second-stage amplification module; The first-stage amplification module is electrically connected between the main control chip and the second-stage amplification module, and the second-stage amplification module is electrically connected to the light valve module; The first-stage amplification module is used to adjust the first voltage value V1 of the received first driving signal to a second voltage value V2, and the second-stage amplification module is used to adjust the received second voltage value V2 to a third voltage value V3, where |V1| < |V2| < |V3|.

6. The three-dimensional display device according to claim 5, wherein The first-stage amplification module is a dual-channel operational amplifier non-inverting amplifier.

7. The three-dimensional display device according to claim 5, wherein The second-stage amplification module includes at least two driving units, and each driving unit controls the polarization state of a partial area of the light valve module.

8. The three-dimensional display device according to claim 7, wherein Along the thickness direction of the three-dimensional display device, the light valve module includes a first liquid crystal light valve and a second liquid crystal light valve arranged in a stacked manner; The second - stage amplification module at least includes a first driving unit and a second driving unit. The first driving unit is used to control the polarization state of the first liquid - crystal light valve in the light - valve module, and the second driving unit is used to control the polarization state of the second liquid - crystal light valve in the light - valve module.

9. The three - dimensional display device according to claim 1, wherein the polarization states of the light - valve module at least include a first polarization state for transmitting the first polarized light and a second polarization state for transmitting the second polarized light, and the polarization directions of the first polarized light and the second polarized light intersect; wherein, the first polarized light is the polarized light corresponding to the left - eye data, and the second polarized light is the polarized light corresponding to the right - eye data.

10. The three - dimensional display device according to claim 9, wherein along the thickness direction of the three - dimensional display device, the light - valve module includes a first liquid - crystal light valve and a second liquid - crystal light valve arranged in a stacked manner; when the light - valve module is in the first polarization state, the first liquid - crystal light valve rotates by a first preset angle, the second liquid - crystal light valve rotates by a second preset angle, and the second liquid - crystal light valve is in a fully - transparent state relative to the first liquid - crystal light valve; when the light - valve module is in the second polarization state, the first liquid - crystal light valve rotates by a third preset angle, the second liquid - crystal light valve rotates by a fourth preset angle, and the first liquid - crystal light valve is in a fully - transparent state relative to the second liquid - crystal light valve.

11. The three - dimensional display device according to claim 10, wherein the first driving signal at least includes a first sub - signal and a second sub - signal; the first sub - signal is used to control the first liquid - crystal light valve to be in the first preset angle or in the third preset angle; the second sub - signal is used to control the second liquid - crystal light valve to be in the second preset angle or in the fourth preset angle.

12. The three - dimensional display device according to any one of claims 1 - 11, wherein the graphics - card module transmits the picture data and the picture refresh rate of the three - dimensional picture to be displayed to the main control chip; the graphics - card module also transmits the picture data to the display - control chip through an HDMI or DP signal line; when the light - valve module is in the polarization state corresponding to the left - eye data, the three - dimensional display device displays the picture corresponding to the left - eye data; when the light - valve module is in the polarization state corresponding to the right - eye data, the three - dimensional display device displays the picture corresponding to the right - eye data; by alternately displaying the pictures corresponding to the left - eye data and the right - eye data, the display of the three - dimensional picture is realized.

13. The three-dimensional display device according to any one of claims 1 to 11, characterized in that, It further includes a backlight driving chip; the backlight driving chip is electrically connected between the backlight module and the main control chip, and is used to realize the transmission of electrical signals between the backlight module and the main control chip.

14. The three-dimensional display device according to claim 13, characterized in that, It further includes an infrared lamp board; the infrared lamp board is electrically connected to the main control chip.

15. A three-dimensional display device, characterized in that, It includes a display - control chip and a graphics - card module, a backlight module, and a light - valve module that are respectively electrically connected to the display - control chip; wherein: The display control chip is used to parse the picture data when receiving the picture data and the picture refresh rate of the three-dimensional picture to be displayed transmitted by the graphics card module, and when it transmits the picture data to the light valve module, to confirm whether the picture data is left-eye data or right-eye data; The display control chip is further used to calculate a first driving signal and a second driving signal based on the left-eye data or the right-eye data, and at least perform digital-to-analog conversion on the first driving signal; The display control chip is further used to transmit the first driving signal to the light valve module and transmit the second driving signal to the backlight module, so as to control the current polarization state of the light valve module, and control the backlight module to present a backlight-off state during the switching time period when the light valve module is in the polarization state.

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