Mirror-free three-dimensional visual image display system and display method

Abstract

The invention relates to the technical field of visual image display processing, and discloses a mirror-free three-dimensional visual image display system and method, and the method comprises the steps: obtaining the illumination information of a scene, generating an illumination control instruction, transmitting the illumination control instruction to a control receiving unit of a light source module, and adjusting the illumination intensity of an illumination unit. A light field modulation module responds to an illumination control instruction, a modulation layer controls the arrangement direction of liquid crystal molecules, a polaroid modulates the liquid crystal molecules, an illumination unit responds to the light field modulation module to control and generate illumination, a feedback unit monitors scene real-time light phase information, and a light phase modulation instruction is output according to the light phase information. A light phase optimization instruction is controlled and output according to light phase modulation instruction input, a high-speed driving unit of the driving control module sends the light phase modulation instruction to a phase compensation unit of the light field modulation module, an output illumination control instruction is adjusted through a microprocessor, and the flexibility of three-dimensional visual image display is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of visual image display processing, and discloses a mirrorless three-dimensional visual image display system and a display method. Background Art

[0002] Some three-dimensional display technologies on the market have problems such as blurred images and weak stereoscopic sense caused by poor light phase control. Traditional display technologies have insufficient light regulation capabilities, resulting in deficiencies in aspects such as brightness, contrast, and color restoration of the displayed images. At the same time, some display systems on the market may have problems such as a single lighting mode and being unable to flexibly adapt to the diverse scene requirements. The modulation method controls the RGB display channels, and the operation method is complex. It is impossible to adapt to multiple scenarios through simple control methods, increasing the display cost. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] To solve the above technical problems, the main purpose of the present invention is to provide a mirrorless three-dimensional visual image display system, including:

[0005] Light source module: including a lighting unit and a control receiving unit. Among them, the lighting unit is used to provide an illumination light source, and the control receiving unit is used to receive a lighting control instruction to adjust the lighting intensity;

[0006] Light field modulation module: including a modulation layer, a polarizer, a phase compensation unit, and an optical housing. Among them, the modulation layer is used to control the alignment direction of liquid crystal molecules, the polarizer is used to modulate liquid crystal molecules, and the phase compensation unit is used to receive a light phase modulation instruction and optimize the modulation of the light phase by the liquid crystal display panel;

[0007] Processing and reconstruction module: used for real-time processing and three-dimensional reconstruction of the collected light field data;

[0008] Drive control module: including a parallel computing unit, a dynamic parameter update unit, and a high-speed drive unit. Among them, the parallel computing unit is used to split the display panel area and calculate parameters for the display panel area, the dynamic parameter update unit is used to update the modulation parameters of the liquid crystal display panel, and the high-speed drive unit is used to drive the high-speed transmission of the light phase modulation instruction.

[0009] As a preferred solution of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0010] The illumination unit includes a three-color LED array, and outputs a color range by controlling the brightness ratio of the three-color LED array;

[0011] The control receiving unit includes a microcontroller, a communication interface, and signal conditioning;

[0012] The microcontroller sets multiple communication interfaces, compiles the multiple communication interfaces, and the multiple communication interfaces are used to parse illumination control instructions, and the microcontroller receives the parsed illumination control instructions and extracts illumination intensity adjustment information.

[0013] As a preferred solution of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0014] The modulation layer is formed by sandwiching a liquid crystal layer between a first glass substrate and a second glass substrate. Conductive electrodes are plated on the surfaces of the first glass substrate and the second glass substrate, and an electric field is applied through the conductive electrodes. The direction and intensity of the electric field control the orientation of the liquid crystal layer molecules;

[0015] The polarizer is used to convert natural light into linearly polarized light. The polarizer is located on both sides of the modulation layer. The polarizer includes a first polarizer and a second polarizer. Among them, the transmission axes of the first polarizer and the second polarizer are perpendicular to each other. The transmission axis direction of the first polarizer is parallel to the initial arrangement direction of the liquid crystal layer, and the transmission axis direction of the second polarizer is perpendicular to the transmission axis of the first polarizer;

[0016] The phase compensation unit includes liquid crystal layer compensation and a drive circuit. The phase compensation unit receives a light phase modulation instruction and adjusts the arrangement of liquid crystal molecules in the liquid crystal compensation layer through the light phase modulation instruction;

[0017] The light phase modulation instruction is received by the microprocessor.

[0018] As a preferred solution of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0019] The image data includes the brightness, color, and depth of the mirrorless three-dimensional visual image;

[0020] The image data is preprocessed by a signal processing circuit, including data decoding and grayscale conversion. The preprocessed image data is sent to the drive circuit of the modulation layer. The drive circuit converts the data into a voltage signal and applies it to the conductive electrodes of the modulation layer to control the orientation and arrangement of the liquid crystal molecules;

[0021] When no electric field is applied, the liquid crystal molecules of the liquid crystal layer are arranged in a helical twist, enabling light to pass through; when a voltage signal is input to the conductive electrode to generate an electric field, the liquid crystal molecules of the liquid crystal layer are arranged along the direction of the electric field, changing the polarization state of the light and controlling the brightness and darkness of the display pixels;

[0022] An electric field is applied to the conductive electrode, and the intensity and direction of the electric field are adjusted through the applied voltage signal, so that the long axes of the negative liquid crystal molecules in the liquid crystal layer are arranged perpendicular to the substrate. When no electric field is applied, the liquid crystal molecules are arranged perpendicular to the substrate, showing black; when an electric field is applied, the liquid crystal molecules are tilted, and light passes through to achieve display.

[0023] As a preferred embodiment of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0024] The feedback unit monitors the real-time light phase information of the scene, outputs a light phase modulation instruction according to the light phase information, and inputs and controls according to the light phase modulation instruction and outputs a light phase optimization instruction;

[0025] The input is a microprocessor, which processes the light phase adjustment information through the microprocessor and outputs the optimized light phase control information, and the optimized light phase control information controls the arrangement of the liquid crystal molecules.

[0026] As a preferred embodiment of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0027] The light phase information is obtained through a phase sensor;

[0028] Determine the three-dimensional light propagation region. Each position in the three-dimensional light propagation region has light phase information, and the obtained light phase information is subjected to phase gradient distribution, and the phase gradient distribution is used to represent the change rate of the light phase in space;

[0029] Through the phase gradient distribution, obtain the direction in which the phase gradient decreases to generate a light phase modulation instruction. If the light phase gradient is greater than the threshold, the light phase modulation instruction is used to modulate the light phase to change in the direction of decreasing gradient. If the light phase gradient is less than the minimum threshold, the light phase modulation instruction is used to modulate the light phase to change in the direction of increasing gradient.

[0030] As a preferred embodiment of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0031] Establish an environmental correction model to eliminate the influence of environmental temperature and humidity on liquid crystal materials;

[0032] The environmental correction model includes temperature correction and humidity correction. The temperature correction is achieved by setting the correlation coefficient between the liquid crystal material and temperature, and the correlation coefficient between the liquid crystal material and temperature is used to map the influence of temperature on the orderliness of liquid crystal molecules;

[0033] The correlation coefficient of the liquid crystal material with temperature is based on the difference between the current temperature and the nematic-isotropic phase transition temperature of the liquid crystal molecules. The ratio of this difference to the nematic-isotropic phase transition temperature of the liquid crystal molecules is used to reflect the influence degree of the liquid crystal material changing from the ordered nematic phase to the disordered isotropic phase during the heating process. When the influence degree is 0, the liquid crystal molecules are affected by temperature and lose their orderliness;

[0034] An influence function of humidity on the liquid crystal material is established through the dielectric constant, humidity, and humidity influence coefficient of the liquid crystal material.

[0035] As a preferred embodiment of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0036] By setting a light transmission matrix to process the reflection, refraction, and interference of light in the modulation layer;

[0037] The light transmission matrix includes a first light transmission matrix, a second light transmission matrix, and an nth light transmission matrix. The light transmission matrix divides the modulation layer into multiple thin layers, each with a thickness of T. For each thin layer, an nth light transmission matrix is established, and the nth light transmission matrix includes the refractive index and thickness of this layer;

[0038] The total transmission matrix of light after passing through multiple thin layers is the product of the first light transmission matrix, the second light transmission matrix, and the nth light transmission matrix. Through the total transmission matrix, the electric field strength and phase data of light after multiple reflections and refractions in the modulation layer are obtained;

[0039] Judge the enhancement or weakening of light interference according to the phase data difference.

[0040] As a preferred embodiment of a mirrorless three-dimensional visual image display system of the present invention, wherein:

[0041] Establish a liquid crystal prediction model to predict the phase change of light;

[0042] After the liquid crystal molecules in different regions are compensated under the influence of temperature and humidity factors, the prediction algorithm of the liquid crystal prediction model uses the current phase data difference as the data basis, extracts the characteristics of the phase data difference in a continuous time series, and uses the eigenvalue of the phase data difference in the continuous time series to capture the dynamic law of the phase data difference change. A liquid crystal prediction model is established through the dynamic law of the phase data difference change to predict the phase change trend in the next few time steps.

[0043] A mirrorless three-dimensional visual image display method includes:

[0044] Obtain the illumination information of the scene, generate an illumination control instruction, and send it to the control receiving unit of the light source module.

[0045] After the control receiving unit receives an instruction, it adjusts the light intensity of the lighting unit according to the instruction and responds to the lighting control instruction through the light field modulation module;

[0046] The modulation layer controls the alignment direction of liquid crystal molecules, the polarizer modulates the liquid crystal molecules, and the lighting unit responds to the lighting control instruction generated by the control of the light field modulation module;

[0047] The feedback unit monitors the real-time light phase information of the scene, outputs a light phase modulation instruction according to the light phase information, and inputs and outputs a light phase optimization instruction according to the light phase modulation instruction;

[0048] The high-speed driving unit of the drive control module sends the light phase modulation instruction to the phase compensation unit of the light field modulation module, and adjusts the output lighting control instruction through the microprocessor.

[0049] Advantages of the present invention:

[0050] The present invention precisely controls liquid crystal molecules by setting a modulation layer and a polarizer, and sets a phase compensation unit to feedback-compensate and optimize the real-time light information in the light field, improving the adjustment accuracy of the light phase and the optimization of the light phase modulation. At the same time, the control receiving unit flexibly analyzes and executes various lighting control instructions through the microcontroller and multiple communication interfaces, enabling the system to quickly adjust the light intensity and color according to different application scenarios and user requirements, improving the versatility and adaptability of the system. The modules of the system are closely integrated. Through reasonable design and function allocation, while ensuring high performance, the overall cost is reduced. Description of the Drawings

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0052] Figure 1 It is a system composition diagram of a mirrorless three-dimensional visual image display system of the present invention;

[0053] Figure 2 It is a specific flowchart of a mirrorless three-dimensional visual image display method of the present invention;

[0054] Figure 3 It is a schematic diagram of the light field modulation module in a mirrorless three-dimensional visual image display system of the present invention;

[0055] Figure 4 It is a schematic diagram of the arrangement of liquid crystal molecules in the liquid crystal layer of a mirrorless three-dimensional visual image display system of the present invention. Detailed implementation manners

[0056] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0057] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0058] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0059] Embodiment 1

[0060] As Figure 1 shown, a mirrorless three-dimensional visual image display system includes:

[0061] The light source module includes a lighting unit and a control receiving unit. Among them, the lighting unit is used to provide a lighting source, and the control receiving unit is used to receive a lighting control instruction to adjust the lighting intensity;

[0062] The lighting unit includes a three-color LED array, and outputs a color range by controlling the brightness ratio of the three-color LED array;

[0063] The control receiving unit includes a microcontroller, a communication interface, and signal conditioning;

[0064] The microcontroller is provided with multiple communication interfaces and compiles the multiple communication interfaces. The multiple communication interfaces are used to parse the lighting control instruction, and the microcontroller receives the parsed lighting control instruction to extract the lighting intensity adjustment information;

[0065] The light field modulation module includes a modulation layer, a polarizer, a phase compensation unit, and an optical housing. Among them, the modulation layer is used to control the alignment direction of liquid crystal molecules, the polarizer is used to modulate the liquid crystal molecules, and the phase compensation unit is used to receive a light ray phase modulation instruction and optimize the phase modulation of the liquid crystal display panel on the light ray;

[0066] As Figure 3 shown, a liquid crystal layer 3 is sandwiched between a first glass substrate 1 and a second glass substrate 2 to form a modulation layer. Among them, an electric field is applied to the conductive electrode, and the liquid crystal layer molecules are affected by the electric field direction and generate an offset.

[0067] The specific electric field direction application and modulation layer setting of the glass substrate should be set according to actual production tests.

[0068] The modulation layer is formed by sandwiching a liquid crystal layer between a first glass substrate and a second glass substrate. Conductive electrodes are plated on the surfaces of the first glass substrate and the second glass substrate, and an electric field is applied through the conductive electrodes to control the molecular orientation of the liquid crystal layer.

[0069] The polarizers are used to convert natural light into linearly polarized light. The polarizers are located on both sides of the modulation layer. The transmission axes of the first polarizer and the second polarizer are perpendicular to each other. The direction of the transmission axis of the first polarizer is parallel to the initial alignment direction of the liquid crystal layer, and the direction of the transmission axis of the second polarizer is perpendicular to that of the first polarizer.

[0070] The phase compensation unit includes a liquid crystal layer compensation and a driving circuit. The phase compensation unit receives a light phase modulation instruction and adjusts the alignment of liquid crystal molecules in the liquid crystal compensation layer through the light phase modulation instruction.

[0071] A linear polarizer is selected, which can convert natural light into linearly polarized light. According to the optical characteristics and polarization requirements of the system, a polarizer with appropriate polarization efficiency and transmittance is selected. For example, the polarization efficiency should be not less than 99%, and the transmittance should be between 40% - 50% to ensure good polarization modulation effect and light transmittance.

[0072] As Figure 4 shown, when no electric field is applied, the liquid crystal molecules in the liquid crystal layer are arranged in a helical twist, allowing light to pass through. In the figure, the upper and lower ends are respectively the first glass substrate 1 and the second glass substrate 2, and the liquid crystal layer 3 is arranged in the middle with the liquid crystal molecules in a helical twist.

[0073] Polarizers are respectively installed on both sides of the modulation layer, and the transmission axes of the two polarizers are perpendicular to each other. The direction of the transmission axis of the front polarizer is parallel to the initial alignment direction of the liquid crystal molecules, and the direction of the transmission axis of the rear polarizer is perpendicular to that of the front polarizer. After the linearly polarized light passing through the front polarizer enters the modulation layer, its polarization state will change with the change in the alignment of the liquid crystal molecules, and finally, the modulation of the light amplitude is achieved when passing through the rear polarizer.

[0074] The image sensor is used to collect image data in space.

[0075] The image data is pre - processed by a signal processing circuit, including operations such as data decoding and grayscale conversion. Then, the pre - processed data is sent to the driving circuit of the modulation layer. The driving circuit applies corresponding voltage signals to the conductive electrodes of each pixel according to the data to control the orientation of the liquid crystal molecules, realizing the modulation of the light phase and polarization characteristics. The modulation layer adopts an active - matrix addressing method to achieve pixel - level precise control, improving the modulation accuracy and response speed.

[0076] Natural light is converted into linearly polarized light by the first polarizer, and its polarization state changes after entering the modulation layer. Then, the light reaches the second polarizer, and only the light whose polarization direction is consistent with the transmission axis direction of the second polarizer can pass through, realizing the modulation of the light amplitude.

[0077] The feedback unit monitors the real-time light phase information of the scene, outputs a light phase modulation instruction according to the light phase information, and inputs and controls according to the light phase modulation instruction and outputs a light phase optimization instruction.

[0078] The input of the light phase optimization instruction is a microprocessor. The microprocessor processes the light phase adjustment information and outputs the optimized light phase control information. The optimized light phase control information controls the arrangement of liquid crystal molecules.

[0079] The light phase information is obtained through a phase sensor.

[0080] Determine the three-dimensional light propagation region. Each position in the three-dimensional light propagation region has light phase information. The obtained light phase information is subjected to phase gradient distribution, and the phase gradient distribution is used to represent the change rate of the light phase in space.

[0081] Through the phase gradient distribution, the direction in which the phase gradient decreases is obtained to generate a light phase modulation instruction. If the light phase gradient is greater than the threshold, the light phase modulation instruction is used to modulate the light phase to change in the direction of decreasing gradient. If the light phase gradient is less than the minimum threshold, the light phase modulation instruction is used to modulate the light phase to change in the direction of increasing gradient.

[0082] A specific implementation method for generating a light phase optimization instruction includes:

[0083] Set up a three-dimensional light propagation region, and each position has corresponding light phase information. First, obtain the gradient distribution of the light phase in the entire region. The phase gradient represents the change rate of the phase in space, similar to the slope of the terrain.

[0084] According to the phase gradient, generate a modulation instruction in the direction of decreasing the phase gradient. In the region with a large phase gradient (the light phase gradient is greater than the threshold, and the light phase rated threshold is the actual required phase of the light phase), the light phase optimization instruction will cause the light phase to change in the direction opposite to the gradient, making the phase distribution more uniform. Specifically, if the phase gradient in the x direction at a certain point (x, y, z) is positive, then the modulation instruction will indicate to add a negative phase adjustment amount proportional to near this point to reduce the phase change rate of this point in the x direction, where φ is the phase gradient function of the light in the x direction (a function of x).

[0085] Different modes of light, including different spatial modes or frequency modes, have correlations between the light phases at different positions in the scene. When the phase information of light at a certain position in the scene is detected, according to the rule of the light phase gradient of the already obtained scene positions, the light phase at a certain position is modulated. For example, similar to the change in the state of one particle instantaneously affecting the state of another particle in quantum entanglement, when the light phase at position A in the scene changes, the light phase function at position B is adjusted. By simulating the correlation characteristics in quantum entanglement in the light phase function relationship, the change in the light phase at position B can be inferred from the change in the light phase at position A.

[0086] Furthermore, for the light at two positions A and B, their phases are respectively and

[0087] Let be the change amount of the light phase at position A. According to the quantum-inspired rule, the change amount of the light phase at position B and satisfy the following relationship:

[0088]

[0089] where: α is a proportionality coefficient used to control the direct influence degree of the phase change at position A on the phase change at position B. Its value depends on the specific scene and the characteristics of the optical system, and the value range of α is (0, 1).

[0090] β is also a coefficient used to introduce non-linear correlation, and its value is also determined according to the actual situation, β ∈ (0, 1).

[0091] is the sign function used to determine the direction of the phase change.

[0092] γ is a parameter related to the uncertainty principle used to limit the amplitude of the phase change. For example, setting γ = π means that when is close to π, the change of will be more strongly restricted.

[0093] A high-performance GPU or FPGA and other processors are used to perform real-time processing and three-dimensional reconstruction on the collected light field data. This module can quickly and accurately restore information such as the three-dimensional structure, shape, color, and texture of the object, and generate three-dimensional image data for display.

[0094] A liquid crystal display, an OLED display screen, or other new display devices are used to present the reconstructed three-dimensional visual image. The performance indicators such as the resolution, refresh rate, and color performance of the display device should match the imaging ability and display requirements of the system.

[0095] The processing and reconstruction module is used to perform real-time processing and three-dimensional reconstruction on the collected light field data;

[0096] The collected scene data contains rich but messy information, such as the light intensity, phase, etc. at different angles and positions. The processing and reconstruction module receives the light phase modulation instructions and illumination control instructions from the light source module and the light field modulation module, and converts the light phase modulation instructions and illumination control instructions into modeling information. Using the principle of multi-view stereo vision, by analyzing the corresponding relationships of the light field data from different perspectives, it calculates the position and shape of the object in three-dimensional space, obtains the depth information of the surface points of the object from the light field data in multiple directions, and gradually constructs a three-dimensional point cloud model of the object. Then, through the surface reconstruction algorithm, the point cloud model is converted into a continuous three-dimensional surface model, and texture information is given to the model, making it closer to the visual effect of the real scene, ensuring that while processing a large amount of data in real time, a high-quality three-dimensional scene can be reconstructed quickly and accurately.

[0097] The drive control module includes a parallel computing unit, a dynamic parameter update unit, and a high-speed drive unit. The parallel computing unit is used to split the display panel area and perform parameter calculations on the display panel area. The dynamic parameter update unit is used to update the modulation parameters of the liquid crystal display panel. The high-speed drive unit is used to drive the high-speed transmission of the light phase modulation instructions.

[0098] The parallel computing unit splits the display panel area into multiple smaller sub-areas. For example, for a high-resolution liquid crystal display panel, it can be evenly divided into several rectangular sub-areas according to rows and columns. Then, parameter calculations are performed in parallel for each sub-area. The parameters include, but are not limited to, the optimal arrangement angle, light transmittance, etc. of the liquid crystal molecules within each sub-area, which are closely related to the display effects such as brightness, contrast, and color of the image. Through parallel computing, the computing efficiency is greatly improved, the time required for parameter calculation is shortened, and the display effect is adjusted in real time.

[0099] The dynamic parameter update unit receives the parameter calculation results of each sub-area output by the parallel computing unit and adjusts the modulation parameters of the liquid crystal display panel according to the results. For example, when it is detected that the image brightness in a certain area needs to be enhanced, the dynamic parameter update unit will update the drive voltage parameters of the liquid crystal molecules in the corresponding sub-area, change the arrangement direction of the liquid crystal molecules, thereby increasing the light transmittance of this area and achieving brightness enhancement. This dynamic update mechanism ensures that the display effect can always match the three-dimensional scene data generated by the processing and reconstruction module, providing users with a stable and high-quality three-dimensional visual experience.

[0100] The high-speed driving unit is used to transmit the optical phase modulation instruction containing these parameters to the phase compensation unit of the optical field modulation module at high speed. Since the three-dimensional visual image display has extremely high requirements for real-time performance, the high-speed driving unit adopts a high-speed data transmission interface and an optimized communication protocol to ensure that the instruction can be accurately delivered within a short time. For example, using high-speed serial interface technology, the optical phase modulation instruction is quickly sent out at a data transmission rate of several Gbps per second, enabling the phase compensation unit to respond in a timely manner, modulate the optical phase of the liquid crystal display panel according to the instruction, achieve precise control of the optical field, and ensure the smooth display of the three-dimensional visual image.

[0101] Furthermore, an environment correction model is established to eliminate the influence of environmental temperature and humidity on liquid crystal materials;

[0102] The environment correction model includes temperature correction and humidity correction. The temperature correction is achieved by setting the correlation coefficient between the liquid crystal material and temperature, and the correlation coefficient between the liquid crystal material and temperature is used to map the influence of temperature on the orderliness of liquid crystal molecules;

[0103] The correlation coefficient between the liquid crystal material and temperature is obtained from the difference between the current temperature and the nematic-isotropic phase transition temperature of the liquid crystal molecules. The ratio of this difference to the nematic-isotropic phase transition temperature of the liquid crystal molecules is used to reflect the influence degree of the liquid crystal material changing from the ordered nematic phase to the disordered isotropic phase during the heating process. When the influence degree is 0, the liquid crystal molecules are affected by temperature and lose their orderliness;

[0104] The influence function of humidity on the liquid crystal material is established through the dielectric constant and humidity of the liquid crystal material and the humidity influence coefficient.

[0105] A specific implementation method of the environment correction model includes:

[0106] The orderliness of the liquid crystal (such as the molecular arrangement direction) changes with temperature, especially decreasing significantly when approaching the nematic-isotropic phase transition temperature (T_NI). The goal of temperature correction is to quantify the influence of temperature on the orderliness and maintain stable performance by adjusting driving parameters (such as voltage). The current temperature (T) is obtained in real time through a sensor. The ratio is obtained by comparing the difference between the current temperature and T_NI with T_NI itself. For example, if the current temperature exceeds T_NI, the larger the ratio, the closer the liquid crystal molecules are to the disordered state. According to the temperature influence degree, the applied voltage or frequency is adjusted proportionally. For example, when the temperature increases, the orderliness decreases, and the voltage needs to be increased to maintain the electric field strength required for molecular arrangement. In a liquid crystal display, when the environmental temperature rises from 25°C to 40°C (close to T_NI = 35°C), the system detects an increase in the temperature influence degree and automatically increases the driving voltage to offset the response delay and contrast reduction caused by molecular disordering.

[0107] Humidity affects the electrical properties of liquid crystal materials by changing their dielectric constants. In a high-humidity environment, water adsorption may cause the dielectric constant to increase, resulting in slower response of liquid crystal molecules in an electric field. The current humidity (H) is obtained through a humidity sensor, and the "humidity influence coefficient" is calibrated based on experimental data to describe the change in dielectric constant for every 1% increase in humidity. For example, when the humidity rises from 50% to 70%, the dielectric constant may increase by 5%. If the dielectric constant increases due to rising humidity, the driving frequency is reduced or the voltage is increased to maintain the control efficiency of the electric field over the molecular arrangement. In an outdoor liquid crystal screen (such as in a high-humidity environment), when the system detects that the humidity rises from 60% to 80%, the driving frequency is automatically reduced to avoid image ghosting problems caused by changes in the dielectric constant.

[0108] The effects of temperature and humidity are superimposed on each other. For example, in a high-temperature and high-humidity environment, liquid crystal molecules tend to be disordered due to the temperature approaching T_NI and the dielectric constant becomes abnormal due to humidity. At this time, the voltage and frequency need to be adjusted synchronously. If the temperature effect is more significant, the voltage is compensated first; if the humidity effect is more prominent, the frequency is adjusted first. The weight coefficients of temperature and humidity are adjusted through historical data, and the compensation amplitude is calculated comprehensively.

[0109] The essence of the environmental correction model is to convert the physical effects of temperature and humidity changes on liquid crystal materials into real-time adjustments of driving parameters through a "perception - calculation - execution" closed loop, map temperature and humidity data to the change amplitude of orderliness or electrical properties, and offset environmental interference by inversely adjusting driving conditions (such as voltage, frequency, etc.). The close cooperation between hardware perception and software control ensures stable output in complex environments.

[0110] The light is processed for reflection, refraction, and interference in the modulation layer by setting a light transmission matrix;

[0111] The light transmission matrix includes a first light transmission matrix, a second light transmission matrix, and an nth light transmission matrix. The light transmission matrix divides the modulation layer into multiple thin layers, each with a thickness of T. For each thin layer, an nth light transmission matrix is established, and the nth light transmission matrix contains the refractive index and thickness of this layer;

[0112] The total transmission matrix of the light after passing through multiple thin layers is the product of the first light transmission matrix, the second light transmission matrix, and the nth light transmission matrix. Through the total transmission matrix, the electric field strength and phase data of the light after multiple reflections and refractions in the modulation layer are obtained;

[0113] Based on the phase data difference, it is judged whether the light interference is enhanced or weakened.

[0114] A specific implementation method of a light transmission matrix includes:

[0115] The modulation layer is evenly divided into n thin layers along the light propagation direction, with each layer having a thickness of T (for example, T = 100 nanometers). The refractive index of each layer is set according to material characteristics or experimental measurement values (such as the refractive index of the first layer being 1.5 and the second layer being 1.6). Each thin layer corresponds to a "light transmission matrix". The phase delay of light when passing through this layer (determined by the thickness and refractive index), and the reflection and transmission of light at the interface between layers (determined by the refractive index difference between adjacent layers).

[0116] Light enters from the first layer, and its electric field and phase are calculated by the first-layer matrix. The output is used as the input of the second-layer matrix, and so on. For example, the first-layer matrix calculates the reflection and transmission when light enters. The second-layer matrix continues to calculate based on the results of the first layer. Finally, the total transmission matrix = the first-layer matrix × the second-layer matrix ×... × the nth-layer matrix. The total matrix contains the final electric field strength, phase of the light after passing through all layers, and the superposition result of multiple reflections. Extract the phase values of light passing through different paths (such as direct transmission vs. multiple reflections) from the total transmission matrix. For example, the phase difference between the light directly passing through all layers and the light transmitted after two reflections is Δφ. If the phase difference Δφ is an integer multiple of 2π (such as Δφ = 0, 2π, 4π), the light intensities are superimposed (enhanced). If the phase difference Δφ is an odd multiple of π (such as Δφ = π, 3π), the light intensities cancel each other out (attenuated).

[0117] The light transmission matrix method decomposes complex optical behaviors into computable physical processes through the process of "layered modeling - matrix accumulation - phase analysis". Its essence is: using layering to simplify the complexity of the continuous medium, converting the optical response of each layer into matrix operations, and synthesizing the overall effect through matrix multiplication to guide design or correction.

[0118] Because the liquid crystal material property model can predict the orientation changes of liquid crystal molecules in different regions under the action of future electric fields, and the light propagation model can further obtain the corresponding light phase changes, the MPC algorithm can plan the optimal sequence of electric field parameter adjustments in advance. For example, if it is predicted that the phase deviation in a certain region continues to increase, the algorithm, based on the information provided by the two models, increases the adjustment amplitude of the electric field parameters in that region in advance, precisely controls the orientation of liquid crystal molecules, corrects the phase deviation, and effectively solves the problem of phase inconsistency caused by differences in liquid crystal material properties.

[0119] Establish a liquid crystal prediction model to predict the light phase change;

[0120] After the liquid crystal molecules in different regions are compensated for the influence of temperature and humidity factors, the prediction algorithm of the liquid crystal prediction model uses the current phase data difference as the data basis, extracts the characteristics of the phase data difference in a continuous time series, uses the characteristic values of the phase data difference in the continuous time series to capture the dynamic law of the change of the phase data difference, and establishes a liquid crystal prediction model through the dynamic law of the change of the phase data difference to predict the phase change trend in the next few time steps.

[0121] The specific implementation method for establishing the liquid crystal prediction model includes:

[0122] Convert the compensated phase data difference into an analyzable time series signal. After the temperature and humidity compensation of the liquid crystal molecules in each region, continuously output the current phase data difference, intercept consecutive data according to a fixed time window (such as 10 samples per second), and form a sequence segment such as [Δt1, Δt2,..., Δtn]. Each segment represents the recent phase fluctuation state.

[0123] Extract key features from the time series, capture the dynamic law of phase change, and calculate the sequence mean (overall deviation level), variance (fluctuation intensity), and slope (change trend). For example, if the slopes of 5 consecutive time slices are all positive, it indicates that the phase difference is continuously expanding.

[0124] Detect periodicity (such as similar fluctuations every 1 second), mutation points (sudden phase jumps), and determine whether the phase difference has inertia through autocorrelation analysis (such as the current difference is significantly affected by the previous 3 historical values).

[0125] Perform a fast Fourier transform (FFT) on the sequence, extract the dominant frequency components, and identify high-frequency noise or low-frequency trends.

[0126] The liquid crystal prediction model uses LSTM as the software control framework, adjusts the software control framework according to the actual situation to handle non-linear complex relationships, trains the liquid crystal prediction model using historical data, learns the law of the phase difference evolving over time, receives real-time feature inputs, and outputs predicted values of the phase difference for the next 1 - 5 time steps. The liquid crystal prediction model fine-tunes the model parameters with the latest data every fixed period (such as every hour) to adapt to environmental or device aging.

[0127] Convert the predicted phase data difference trend of the liquid crystal prediction model into a control signal to achieve forward-looking adjustment. For example, classify the prediction results into modes such as "continuous deviation", "converging regression", "oscillating fluctuation", etc. If the phase difference continues to increase in the next 3 seconds, it is marked as "rising risk level".

[0128] If it is predicted that the phase will deviate from the target, adjust the driving voltage or frequency in advance to offset the potential deviation.

[0129] Sort the prediction results of multiple regions and give priority to processing the region with the fastest deviation speed.

[0130] Set a confidence threshold (such as when the prediction error exceeds 10%), trigger manual inspection or switch to a conservative control mode.

[0131] The specific implementation method for constructing a real-time prediction and control system with software and hardware collaboration includes:

[0132] Deploy edge computing units (such as FPGAs or low-power AI chips) to achieve millisecond-level feature extraction and prediction. Each liquid crystal partition runs a prediction thread independently to avoid global computing bottlenecks. The process includes real-time acquisition → cache sharding → feature calculation → model inference → control instruction generation. According to the urgency of the prediction task, dynamically allocate computing power (such as prioritizing calculations in high-deviation areas). Simulate extreme scenarios (such as drastic changes in temperature and humidity) in a virtual environment to verify the reliability of the prediction, and compare the performance differences between prediction-driven strategies and passive response strategies (such as energy consumption and the proportion of stability improvement).

[0133] Embodiment 2

[0134] As Figure 2 shown, the implementation process of a mirrorless three-dimensional vision image method includes:

[0135] Obtain the illumination information of the scene, generate an illumination control instruction, and send it to the control receiving unit of the light source module.

[0136] After receiving the instruction, the control receiving unit adjusts the illumination intensity of the illumination unit according to the instruction and responds to the illumination control instruction through the light field modulation module;

[0137] The modulation layer controls the alignment direction of liquid crystal molecules, the polarizer modulates the liquid crystal molecules, and the illumination unit responds to the illumination control instruction generated by the light field modulation module;

[0138] The modulation layer controls the alignment direction of liquid crystal molecules according to preset rules and initial parameters, and the polarizer further modulates the liquid crystal molecules to preliminarily change the light characteristics;

[0139] Monitor the real-time light phase information of the scene through the feedback unit, output a light phase modulation instruction according to the light phase information, and control and output a light phase optimization instruction according to the input of the light phase modulation instruction;

[0140] The high-speed driving unit of the drive control module sends the light phase modulation instruction to the phase compensation unit of the light field modulation module, and adjusts the output illumination control instruction through the microprocessor.

[0141] The high-speed driving unit sends the light phase modulation instruction to the phase compensation unit of the light field modulation module;

[0142] The phase compensation unit receives the phase modulation instruction and optimizes the modulation of the light phase by the liquid crystal display panel according to the phase modulation instruction.

[0143] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only two embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. Any "means-plus-function" clause is intended to cover the structures that perform the functions described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Accordingly, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0144] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to implementing the present invention).

[0145] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development efforts will be a routine task of design, manufacturing and production without undue experimentation.

[0146] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A mirrorless three-dimensional visual image display system, characterized in that, Including: Light source module: including a lighting unit and a control receiving unit. The lighting unit is used to provide a lighting source, and the control receiving unit is used to receive a lighting control instruction to adjust the lighting intensity. Light field modulation module: including a modulation layer, a polarizer, a phase compensation unit, and an optical housing. The modulation layer is used to control the alignment direction of liquid crystal molecules. The polarizer is used to modulate the liquid crystal molecules. The phase compensation unit is used to receive a light phase modulation instruction and optimize the modulation of the light phase by the liquid crystal display panel. Processing and reconstruction module: used to perform real-time processing and three-dimensional reconstruction on the collected light field data. Drive control module: including a parallel computing unit, a dynamic parameter update unit, and a high-speed drive unit. The parallel computing unit is used to split the display panel area and calculate parameters for the display panel area. The dynamic parameter update unit is used to update the modulation parameters of the liquid crystal display panel. The high-speed drive unit is used to drive the high-speed transmission of the light phase modulation instruction.

2. The mirrorless three-dimensional visual image display system according to claim 1, characterized in that: The lighting unit includes a three-color LED array, and outputs a color range by controlling the brightness ratio of the three-color LED array. The control receiving unit includes a microcontroller, a communication interface, and signal conditioning. The microcontroller is provided with a plurality of communication interfaces, and compiles the plurality of communication interfaces. The plurality of communication interfaces are used to parse the lighting control instruction, and the microcontroller receives the parsed lighting control instruction to extract the lighting intensity adjustment information.

3. The mirrorless three-dimensional visual image display system according to claim 2, characterized in that: The modulation layer is formed by sandwiching a liquid crystal layer between a first glass substrate and a second glass substrate. Conductive electrodes are plated on the surfaces of the first glass substrate and the second glass substrate. An electric field is applied through the conductive electrodes, and the direction and intensity of the electric field control the orientation of the liquid crystal layer molecules. The polarizer is used to convert natural light into linearly polarized light. The polarizer is located on both sides of the modulation layer. The polarizer includes a first polarizer and a second polarizer. Among them, the transmission axes of the first polarizer and the second polarizer are perpendicular to each other. The transmission axis direction of the first polarizer is parallel to the initial alignment direction of the liquid crystal layer, and the transmission axis direction of the second polarizer is perpendicular to the transmission axis of the first polarizer. The phase compensation unit includes a liquid crystal layer compensation and a drive circuit. The phase compensation unit receives the light phase modulation instruction and adjusts the alignment of the liquid crystal molecules in the liquid crystal compensation layer through the light phase modulation instruction. The light phase modulation instruction is received by a microprocessor.

4. The mirrorless three-dimensional visual image display system according to claim 3, characterized in that: The image data includes the brightness, color, and depth of the mirrorless three-dimensional visual image. The image data is preprocessed by a signal processing circuit, including data decoding and grayscale conversion. The preprocessed image data is sent to the drive circuit of the modulation layer. The drive circuit converts the data into a voltage signal and applies it to the conductive electrode of the modulation layer to control the orientation and alignment of the liquid crystal molecules. When no electric field is applied, the liquid crystal molecules in the liquid crystal layer are arranged in a helical twist, allowing light to pass through. When a voltage signal is input to the conductive electrodes to generate an electric field, the liquid crystal molecules in the liquid crystal layer are arranged along the direction of the electric field, changing the polarization state of the light and controlling the brightness and darkness of the display pixels. An electric field is applied to the conductive electrodes, and the voltage signal passing through adjusts the intensity and direction of the electric field, causing the long axes of the negative liquid crystal molecules in the liquid crystal layer to be perpendicular to the substrate. When no electric field is applied, the liquid crystal molecules are perpendicular to the substrate, showing black. When an electric field is applied, the liquid crystal molecules tilt, and light passes through to achieve display.

5. The mirrorless three-dimensional visual image display system according to claim 4, wherein: The feedback unit monitors the real-time light phase information of the scene, outputs a light phase modulation instruction according to the light phase information, and inputs and outputs a light phase optimization instruction according to the light phase modulation instruction. The input is a microprocessor, which processes the light phase adjustment information through the microprocessor and outputs the optimized light phase control information, and the optimized light phase control information controls the arrangement of the liquid crystal molecules.

6. The mirrorless three-dimensional visual image display system according to claim 1, wherein: The light phase information is obtained through a phase sensor. A three-dimensional light propagation region is determined. Each position in the three-dimensional light propagation region has light phase information. The obtained light phase information is subjected to a phase gradient distribution, and the phase gradient distribution is used to represent the change rate of the light phase in space. Through the phase gradient distribution, a direction in which the phase gradient decreases is obtained to generate a light phase modulation instruction. If the light phase gradient is greater than the threshold, the light phase modulation instruction is used to modulate the light phase to change in the direction of decreasing gradient. If the light phase gradient is less than the minimum threshold, the light phase modulation instruction is used to modulate the light phase to change in the direction of increasing gradient.

7. The mirrorless three-dimensional visual image display system according to claim 6, wherein: An environment correction model is established to eliminate the influence of environmental temperature and humidity on the liquid crystal material. The environment correction model includes temperature correction and humidity correction. The temperature correction is achieved by setting the correlation coefficient between the liquid crystal material and temperature, and the correlation coefficient between the liquid crystal material and temperature is used to map the influence of temperature on the orderliness of liquid crystal molecules. The correlation coefficient between the liquid crystal material and temperature is based on the difference between the current temperature and the nematic-isotropic phase transition temperature of the liquid crystal molecules. The ratio of the difference to the nematic-isotropic phase transition temperature of the liquid crystal molecules is used to reflect the influence degree of the liquid crystal material changing from the ordered nematic phase to the disordered isotropic phase during the heating process. When the influence degree is 0, the liquid crystal molecules are affected by temperature and lose their orderliness. The influence function of humidity on the liquid crystal material is established through the dielectric constant, humidity, and humidity influence coefficient of the liquid crystal material.

8. The mirrorless three-dimensional visual image display system according to claim 7, wherein: The light transmission matrix is set to process the reflection, refraction, and interference of light in the modulation layer. The light transmission matrix includes a first light transmission matrix, a second light transmission matrix, and an nth light transmission matrix. The light transmission matrix divides the modulation layer into multiple thin layers, each with a thickness of T. For each thin layer, an nth light transmission matrix is established, and the nth light transmission matrix includes the refractive index and thickness of that layer; The total transmission matrix of the light after passing through multiple thin layers is the product of the first light transmission matrix, the second light transmission matrix, and the nth light transmission matrix. Through the total transmission matrix, the electric field strength and phase data of the light after multiple reflections and refractions in the modulation layer are obtained; Judge the enhancement or weakening of light interference according to the phase data difference.

9. The mirrorless three-dimensional visual image display system according to claim 8, wherein: Establish a liquid crystal prediction model to predict the phase change of light; After the liquid crystal molecules in different regions are compensated under the influence of temperature and humidity factors, the prediction algorithm of the liquid crystal prediction model uses the current phase data difference as the data basis, extracts the phase data difference characteristics of a continuous time series, and uses the eigenvalue of the phase data difference of the continuous time series to capture the dynamic law of the phase data difference change. A liquid crystal prediction model is established through the dynamic law of the phase data difference change to predict the phase change trend in the next few time steps.

10. A mirrorless three-dimensional visual image display method, implemented based on a mirrorless three-dimensional visual image display system according to any one of claims 1-9, characterized in that: Including: Obtain the illumination information of the scene, generate an illumination control instruction, and send it to the control receiving unit of the light source module; After receiving the instruction, the control receiving unit adjusts the illumination intensity of the illumination unit according to the instruction and responds to the illumination control instruction through the light field modulation module; The modulation layer controls the alignment direction of the liquid crystal molecules, the polarizer modulates the liquid crystal molecules, and the illumination unit responds to the illumination control instruction generated by the light field modulation module; Monitor the real-time light phase information of the scene through the feedback unit, output a light phase modulation instruction according to the light phase information, and input and control according to the light phase modulation instruction and output a light phase optimization instruction; The high-speed driving unit of the driving control module sends the light phase modulation instruction to the phase compensation unit of the light field modulation module and adjusts the output illumination control instruction through the microprocessor.

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