View angle switching control method and system of double-sided display module

Abstract

The invention provides a visual angle switching control method and system for a double-sided display module, and relates to the technical field of display, and the method comprises the steps: detecting whether a user sends a visual angle switching instruction, carrying out the analysis and judgment, determining a target visual angle switching direction, and building an ultrathin double-sided display module. Based on the target visual angle switching direction, visual angle switching analysis is carried out on the backlight LED light bar, the optical element and the front and back liquid crystal display panel, the visual angle switching control parameters are adopted to control the ultrathin double-sided display module to carry out visual angle switching and effect evaluation, the module visual angle switching effect is obtained, and visual angle optimization control is carried out. The technical problem of how to improve the visual angle switching display quality of the module while ensuring that the double-sided display module is ultrathin in structure and low in energy consumption in the prior art is solved. The technical effect that the display quality is improved while it is ensured that the double-sided display module is ultrathin in structure and low in energy consumption by constructing the ultrathin double-sided display module and optimizing view angle switching control of the double-sided display module is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a viewing angle switching control method and system of a double-sided display module. BACKGROUND

[0002] With the development of commercial display, public transportation, smart home and industrial control, the demand for double-sided display devices is increasing. Most of the existing double-sided display solutions are composed of two independent display modules back-to-back, which have the disadvantages of large size, high power consumption, heavy weight and high cost. Single half-transmission half-reflection display modules are faced with low brightness, limited viewing angle and image interference. Moreover, the existing backlight technology relies on fixed structure and simple brightness adjustment, lacks dynamic adjustment and optimization for different viewing angles, resulting in uneven brightness, color distortion and viewing angle limitation during the viewing angle switching process of the module, which affects the user experience.

[0003] In summary, the prior art has the technical problem of how to ensure that the double-sided display module structure is ultra-thin and low in energy consumption while improving the display quality of the module viewing angle switching. SUMMARY

[0004] The purpose of the present application is to provide a viewing angle switching control method and system of a double-sided display module, which solves the technical problem of how to ensure that the double-sided display module structure is ultra-thin and low in energy consumption while improving the display quality of the module viewing angle switching.

[0005] In view of the above problems, the present application provides a viewing angle switching control method and system of a double-sided display module.

[0006] The first aspect of the present application provides a viewing angle switching control method of a double-sided display module, which comprises: detecting whether a user issues a switching viewing angle instruction through an input device, analyzing and determining the target viewing angle switching direction; building an ultra-thin double-sided display module, which comprises a positive and negative liquid crystal display panel and an integrated double-sided symmetric backlight system, wherein the integrated double-sided symmetric backlight system adopts a symmetric structure of a reflective sheet ridge, double-sided light guide plates and backlight LED light bars; based on the target viewing angle switching direction, analyzing the viewing angle switching of the backlight LED light bars and optical elements in the integrated double-sided symmetric backlight system, and the positive and negative liquid crystal display panel, to determine the viewing angle switching control parameters; using the viewing angle switching control parameters to control the viewing angle switching and effect evaluation of the ultra-thin double-sided display module, to obtain the module viewing angle switching effect, and performing viewing angle optimization control through the module viewing angle switching effect.

[0007] Optionally, the switching angle instruction is subjected to type recognition to obtain a view angle switching instruction type; if the view angle switching instruction type is a manual explicit instruction, the view angle switching instruction type is subjected to trigger behavior recognition to obtain a switching instruction trigger behavior; the switching instruction trigger behavior is subjected to logical analysis and judgment to determine a target view angle switching direction; if the view angle switching instruction type is a passive implicit instruction, the switching view angle instruction is subjected to analysis and judgment to determine the target view angle switching direction.

[0008] Optionally, a view angle switching logic library is preset according to display module application requirements, the view angle switching logic library including an idle view angle switching logic and an environmental view angle switching logic; the switching view angle instruction is subjected to non-interaction time monitoring to obtain an idle state period; the idle view angle switching logic is used to analyze and determine the target view angle switching direction; the environmental light intensity is monitored in real time, and the environmental view angle switching logic is used to analyze and determine the target view angle switching direction.

[0009] Optionally, the switching view angle instruction is subjected to priority analysis to determine a switching instruction priority, and the execution order of the switching instruction priority is a manual explicit instruction, an environmental view angle switching logic and an idle view angle switching logic; when the switching view angle instruction has a trigger conflict, the switching instruction priority is activated; the switching view angle instruction is subjected to priority selection and judgment based on the switching instruction priority to determine the target view angle switching direction.

[0010] Optionally, a metal outer frame, which serves as an overall structural support and electromagnetic shielding; a positive and negative liquid crystal display panel, which is respectively inlaid on the positive and negative surfaces of the metal outer frame by gluing; an integrated double-sided symmetric backlight system, which is arranged between the positive and negative liquid crystal display panels; a video drive board, which is used for electrically connecting and simultaneously controlling the positive and negative liquid crystal display panels.

[0011] Optionally, a reflective sheet is centrally arranged for serving as an optical separation ridge; double-sided light guide plates include first and second light guide plates respectively attached to two surfaces of the reflective sheet; a backlight LED light bar is arranged at a joint side of the double-sided light guide plates, and the center line of LED lamp beads is aligned with the edge of the reflective sheet, so that light can be coupled into the double-sided light guide plates simultaneously and equally; a diffusion film group includes first and second diffusion films respectively located outside the light exit surfaces of the double-sided light guide plates; a prism sheet group includes first and second prism sheets respectively located outside the diffusion film group for converging light and controlling the horizontal or vertical viewing angle; and a brightness enhancement film group includes first and second brightness enhancement films respectively located outside the prism sheet group for recycling polarization loss to improve front brightness.

[0012] Optionally, based on the target viewing angle switching direction, the backlight LED light bar in the integrated double-sided symmetric backlight system and the front and back liquid crystal display panels are subjected to viewing angle switching analysis to obtain LED light bar switching parameters and display panel switching parameters; the optical elements in the integrated double-sided symmetric backlight system are configured and controlled based on the target viewing angle switching direction to obtain optical element configuration parameters; and the viewing angle switching control parameters are determined based on the LED light bar switching parameters and display panel switching parameters and the optical element configuration parameters.

[0013] Optionally, the target viewing angle switching direction is combined and constrained based on the display module viewing angle requirement and the polarizing sheet absorption axis angle of the front and back liquid crystal display panels to determine viewing angle switching constraint parameters; the optical elements in the integrated double-sided symmetric backlight system are configured and controlled based on the viewing angle switching constraint parameters to obtain a configuration parameter selection threshold; the viewing angle effect of the configuration parameter selection threshold is simulated and the global parameters are optimized to obtain optical element configuration parameters.

[0014] Optionally, if the module viewing angle switching effect does not reach the preset switching effect, the module viewing angle switching effect is analyzed in an optimization direction to obtain a viewing angle parameter optimization direction; the viewing angle switching control parameters are optimized and corrected based on the viewing angle parameter optimization direction, and the viewing angle switching compensation control is performed through the corrected viewing angle switching control parameters.

[0015] In a second aspect of the present application, a viewing angle switching control system of a double-sided display module is provided, comprising: a switching direction determination module configured to detect whether a user issues a viewing angle switching instruction through an input device, analyze and determine the target viewing angle switching direction based on the viewing angle switching instruction; a display module building module configured to build an ultra-thin double-sided display module, wherein the ultra-thin double-sided display module comprises a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system, and the integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet middle ridge, double-sided light guide plates and backlight LED light bars; a viewing angle switching analysis module configured to perform viewing angle switching analysis on the backlight LED light bars and optical elements in the integrated double-sided symmetrical backlight system and the front-rear liquid crystal display panel based on the target viewing angle switching direction, and determine viewing angle switching control parameters; and a viewing angle optimization control module configured to control the ultra-thin double-sided display module to perform viewing angle switching and effect evaluation based on the viewing angle switching control parameters, obtain a module viewing angle switching effect, and perform viewing angle optimization control based on the module viewing angle switching effect.

[0016] The one or more technical solutions provided in the present application have at least the following technical effects or advantages: The method provided by the embodiments of the present application detects whether a user issues a viewing angle switching instruction through an input device, analyzes and determines the target viewing angle switching direction based on the viewing angle switching instruction, builds an ultra-thin double-sided display module, wherein the ultra-thin double-sided display module comprises a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system, and the integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet middle ridge, double-sided light guide plates and backlight LED light bars, performs viewing angle switching analysis on the backlight LED light bars and optical elements in the integrated double-sided symmetrical backlight system and the front-rear liquid crystal display panel based on the target viewing angle switching direction, determines viewing angle switching control parameters, controls the ultra-thin double-sided display module to perform viewing angle switching and effect evaluation based on the viewing angle switching control parameters, obtains a module viewing angle switching effect, and performs viewing angle optimization control based on the module viewing angle switching effect. The technical effect of ensuring that the double-sided display module structure is ultra-thin and low in energy consumption while realizing high-quality display at different viewing angles and improving display quality is achieved by building an ultra-thin double-sided display module and optimizing the viewing angle switching control of the double-sided display module.

[0017] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and other drawings can also be obtained by the provided drawings without creative labor for those skilled in the art.

[0019] Figure 1 A flowchart of a viewing angle switching control method of a double-sided display module provided by the present application.

[0020] Figure 2 A structure diagram of an integrated double-sided symmetric backlight system in a viewing angle switching control method of a double-sided display module provided by the present application.

[0021] Figure 3 A structure diagram of a viewing angle switching control system of a double-sided display module provided by the present application.

[0022] Explanation of reference signs: reflective sheet 1, first light guide plate 21, second light guide plate 22, backlight LED light bar 3, first diffusion film 41, second diffusion film 42, first prism sheet 51, second prism sheet 52, first brightness enhancement film 61, second brightness enhancement film 62, switching direction determination module 11, display module building module 12, viewing angle switching analysis module 13, viewing angle optimization control module 14. DETAILED DESCRIPTION

[0023] The present application provides a viewing angle switching control method and system of a double-sided display module, which is used to solve the technical problem of how to ensure that the double-sided display module structure is ultra-thin and low-energy consumption while improving the display quality of the module viewing angle switching in the prior art. The technical effect of constructing an ultra-thin double-sided display module and optimizing the viewing angle switching control of the double-sided display module is achieved, which ensures that the double-sided display module structure is ultra-thin and low-energy consumption while realizing high-quality display at different viewing angles and improving the display quality.

[0024] Below, the technical solutions in the present application will be described clearly and completely with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the example embodiments described herein. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, not all.

[0025] As shown in the first embodiment, Figure 1 The present application provides a viewing angle switching control method of a double-sided display module, which comprises: detecting whether a user issues a viewing angle switching instruction through an input device, analyzing and judging the viewing angle switching instruction, and determining a target viewing angle switching direction.

[0026] Further, determining the target viewing angle switching direction comprises: identifying the type of the viewing angle switching instruction to obtain a viewing angle switching instruction type; if the viewing angle switching instruction type is a manual explicit instruction, identifying the triggering behavior of the viewing angle switching instruction type to obtain a switching instruction triggering behavior; logically analyzing and judging the switching instruction triggering behavior to determine the target viewing angle switching direction; and if the viewing angle switching instruction type is a passive implicit instruction, analyzing and judging the viewing angle switching instruction to determine the target viewing angle switching direction.

[0027] Specifically, the input device is used as a medium for interaction with the user, responsible for receiving user operations or sensing environmental change information. The input device monitors the user's operation and detects whether a viewing angle switching instruction is issued. The input device includes a touch screen, a key, a voice recognition system, a sensor, and a camera, etc. The user can touch, slide, and long-press the touch screen to interact with the display module and trigger the viewing angle switching instruction. The key, such as a physical button or a shortcut key on the display module, is used to activate the viewing angle switching function. In the display module with voice recognition function, the user can trigger the viewing angle switching through voice instruction. The sensor and the camera indirectly determine whether the viewing angle switching is needed by monitoring the user's behavior or the surrounding environment, such as ambient light intensity, user's head orientation, etc.

[0028] When the view angle switching instruction is detected, the view angle switching instruction is identified. The view angle switching instruction is divided into two categories: manual display instruction and passive implicit instruction. The manual explicit instruction is a view angle switching request triggered directly by the user through a preset operation, for example, the user clicks a preset view angle switching button on the device, or slides a specific area of the touch screen, etc. These instructions explicitly express the user's intention to switch the view angle. The passive implicit instruction is not triggered directly by the user, but is generated according to the user's behavior or environmental changes, for example, the view angle switching is automatically triggered to save power or provide a more suitable display view angle according to the user's long-time non-operation state, or the surrounding environment light changes, and the view angle is adjusted to make the display effect more suitable for the environment.

[0029] If the view angle switching instruction type is determined to be a manual explicit instruction, the triggering behavior of the view angle switching instruction is further identified. The triggering behavior identification is to determine the specific operation of the user to trigger the instruction, for example, whether the operation is a single simple key operation or a multi-parameter combined operation. After obtaining the triggering behavior of the switching instruction, the target view angle switching direction is determined through logical analysis. If the triggering behavior is single triggering, for example, a single operation such as pressing the back display button, the switching instruction type is directly analyzed as a front→back or back→front switching instruction, depending on the current display state. For combined triggering, for example, the view angle switching instruction contains combined instructions such as long press and sliding, it is analyzed as a composite direction, including adjusting the up-down view angle and the left-right view angle at the same time, to realize the view angle switching demand of the composite direction. In addition, default switching rules can be preset, for example, the user switches to back display by default when operating for the first time, or the user's historical behavior is analyzed and learned to optimize the judgment, so that the view angle switching is more in line with the user's habits. For example, when the user has a long-term tendency to switch to back display under certain conditions, the behavior is automatically learned and the switching action is preferentially executed.

[0030] When the view angle switching instruction type is a passive implicit instruction, the target view angle switching direction is automatically determined based on the preset environmental logic or idle logic, combined with the sensor data or environmental monitoring of the device. For example, through sensors such as light sensors, acceleration sensors or motion sensors, external environmental changes or user behaviors are detected. When it is detected that the user has not operated for a long time, it is in an idle state, and according to the preset idle view angle switching logic, it is automatically switched to back display to avoid excessive power consumption of the screen or image residue. Similarly, the view angle is automatically adjusted according to the change of the ambient light intensity to ensure the best display effect, such as automatically adjusting to reverse display in strong light to optimize visibility. Through the combination of environmental perception data and logical rules, the view angle switching can be intelligently judged and executed to ensure that the display module always maintains the best user experience.

[0031] By detecting and analyzing whether the user issues a switching perspective instruction, and combining the control modes of explicit and implicit instructions, the target perspective switching direction can be determined according to the user's explicit operation instruction, and the target perspective switching direction can also be determined according to the changes in the environment or the user's behavior, thereby improving the accuracy and flexibility of the determination of the target perspective switching direction, and further improving the user display experience.

[0032] Further, the switching perspective instruction is analyzed and judged to determine the target perspective switching direction, including: according to the application requirements of the display module, a perspective switching logic library is preset, the perspective switching logic library includes idle perspective switching logic and environmental perspective switching logic; the switching perspective instruction is monitored for non-interaction time to obtain an idle state period; the idle state period is analyzed and judged by the idle perspective switching logic to determine the target perspective switching direction; the ambient light intensity is monitored in real time, and the ambient light intensity is analyzed and judged based on the environmental perspective switching logic to determine the target perspective switching direction.

[0033] Specifically, according to the application requirements of the display module, a perspective switching logic library is preset, the perspective switching logic library includes idle perspective switching logic and environmental perspective switching logic, which is used to guide how to make the most appropriate perspective switching decision in different operating environments. The idle perspective switching logic is a rule set for the display module in the idle state, which is set for the purpose of optimizing display effect or saving energy, etc. The environmental perspective switching logic is a rule set for adjusting the display perspective according to the changes in the environment of the display module, such as light, temperature, etc.

[0034] By monitoring the switching perspective instruction for non-interaction time, the operation state of the user is monitored in real time, and the non-interaction time refers to the time interval from the last operation of the user to the display module to the current time. By continuously monitoring this time interval, the idle state period of the display module can be accurately obtained. For example, when it is monitored that the user has not performed any operation on the display module for 30 minutes, it is determined that the display module is in an idle state at this time, and the idle state duration is 30 minutes. The idle perspective switching logic is used to analyze and judge the display switching of the idle state period according to the length of the idle time, the preset energy saving strategy, and the display effect optimization requirements, etc. For example, when the idle time exceeds the preset idle time threshold, in order to save power, the idle perspective switching logic determines to switch the display module to the perspective corresponding to the low-power display mode, or to switch the display content to the back to reduce the loss of the front screen, thereby determining the corresponding target perspective switching direction. The preset idle time threshold can be dynamically set according to the actual situation.

[0035] Meanwhile, the environmental view switching logic is triggered by real-time monitoring of the ambient light intensity. The built-in light sensor continuously detects the light intensity changes in the surrounding environment, and based on the preset environmental view switching logic, the ambient light intensity is analyzed and judged. The change range, change rate of the light intensity, and the preset display adaptation rules are comprehensively considered to determine the target view switching direction. For example, when it is perceived that the external light is too strong, the display module is automatically adjusted in view, and switched to a mode that can effectively reduce light reflection and enhance visibility, such as adjusting the display direction or changing the backlight brightness. Through automatic adjustment, the user can always obtain clear and comfortable display effect under different environmental light conditions.

[0036] By comprehensively analyzing the idle state of the display module and environmental factors, the most suitable target view switching direction can be determined according to different actual situations, providing accurate basis for subsequent determination of view switching control parameters of the backlight system, display panel, etc. of the display module based on the direction, ensuring the scientificity and rationality of the view switching operation, and improving the user display experience.

[0037] Further, the method further comprises: performing priority analysis on the switching view instruction to determine the switching instruction priority, and the execution order of the switching instruction priority is manual explicit instruction, environmental view switching logic, and idle view switching logic; when the switching view instruction exists triggering conflict, activating the switching instruction priority; based on the switching instruction priority, the switching view instruction is selected and judged to determine the target view switching direction.

[0038] Specifically, by analyzing the view switching instructions of different sources, the priority of each type of instruction is assigned. The manual explicit instruction is the view switching request actively issued by the user through explicit operation, such as clicking the preset view switching button, huad touch screen, voice command, etc., directly reflecting the user's subjective will at the moment, and its priority is the highest. The environmental view switching logic is the automatically generated view switching demand according to the real-time monitored environmental factors, such as light intensity, angle change, etc., to ensure that the display effect better adapts to the environment. The idle view switching logic is the view switching rule set for optimizing energy consumption or display state when the display module is in idle state, and the priority is the last. The execution order of the switching instruction priority is set as manual explicit instruction, environmental view switching logic, and idle view switching logic.

[0039] When multiple view angle switching instructions are triggered at the same time, causing a trigger conflict, for example, a user operation triggers a manual explicit instruction, while the environment monitoring also triggers the environmental view angle switching logic, the switching instruction priority is activated, and the switching view angle instruction is selected based on the preset priority order. For example, the user switches the display view angle to the front by a manual explicit instruction, while the environmental view angle switching logic determines that the view angle needs to be switched to the side to reduce reflections according to the current light intensity, causing a trigger conflict. According to the switching instruction priority, it is ensured that the manual sliding instruction will be executed first, so that the user operation will not be disturbed by automatic judgment. After priority analysis, the final target view angle switching direction is determined according to the specific view angle switching instruction type.

[0040] By setting a clear priority order, the response order can be quickly and reasonably determined in the presence of instruction conflicts, ensuring that the display module always prioritizes meeting the user's subjective needs, followed by adapting to environmental changes, and finally considering optimization in the idle state of the device. Not only does this improve the response efficiency and accuracy of the display module, but it also provides users with a more practical and high-quality display experience, making the view angle switching control of the double-sided display module more intelligent.

[0041] A super-thin double-sided display module is built, which includes a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system. The integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet ridge, double-sided light guide plates, and backlight LED light bars.

[0042] Specifically, a super-thin double-sided display module is built, which includes a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system. The front-rear liquid crystal display panel contains two liquid crystal display panels, one for front display and one for back display, located on both sides of the display module, allowing the display module to display on both sides simultaneously, and the two display panels can work independently or display synchronously. The integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet ridge, double-sided light guide plates, and backlight LED light bars. The reflective sheet ridge not only reflects light but also serves as a physical barrier to prevent light path crosstalk between the two sides, ensuring the independence and uniformity of double-sided display and achieving the ultra-thinness of the double-sided display module. The double-sided light guide plates are attached to both sides of the reflective sheet and used to guide the light from the backlight source to the liquid crystal display panel. The backlight LED light bar is placed near the junction of the double-sided light guide plates, with the center line of the LED lamp aligned with the edge of the reflective sheet, allowing the light to be evenly coupled into the light guide plate and ensuring sufficient backlight in both display panels, avoiding insufficient light.

[0043] By means of the ultra-thin design and the integrated double-sided symmetrical backlight system, the display effect is optimized, and the thickness and weight of the display module are effectively reduced, so that the ultra-thin double-sided display module can provide front and rear view angle display at the same time, and adapt to the user demand under different view angles.

[0044] Further, the ultra-thin double-sided display module specifically comprises: a metal frame serving as overall structural support and electromagnetic shielding; front and back liquid crystal display panels respectively inlaid on the front and back surfaces of the metal frame by means of gluing; an integrated double-sided symmetrical backlight system arranged between the front and back liquid crystal display panels; and a video drive board for electrically connecting and simultaneously controlling the front and back liquid crystal display panels.

[0045] Specifically, the ultra-thin double-sided display module specifically comprises a metal frame, front and back liquid crystal display panels, an integrated double-sided symmetrical backlight system, and a video drive board. The metal frame provides overall structural support for the ultra-thin double-sided display module, ensures the stability and firmness of the entire display module, and can effectively perform electromagnetic shielding to prevent external electromagnetic interference, protect internal electronic components, ensure the stability of the display effect, and prevent the long-term operation of the display module from being disturbed by external electromagnetic noise.

[0046] On the front and back surfaces of the metal frame, the front and back liquid crystal display panels are respectively mounted, and the front and back liquid crystal display panels comprise two liquid crystal display panels fixed on the front and back surfaces of the metal frame by means of gluing inlay technology, realizing the double-sided display function. Each side can independently display content, and the user can view from any side and switch the display content according to the demand. The design of the front and back liquid crystal display panels ensures the efficiency and stability of double-sided display, and at the same time, since the front and back liquid crystal display panels are precisely embedded in the frame, the thickness of the double-sided display module is reduced, ensuring the ultra-thin design of the double-sided display module.

[0047] Between the front and back liquid crystal display panels, an integrated double-sided symmetrical backlight system is arranged. The integrated double-sided symmetrical backlight system provides uniform backlight for the two liquid crystal display panels, ensuring that the brightness and uniformity of the display effect remain consistent regardless of the viewing angle. The design of the integrated double-sided symmetrical backlight system includes the symmetrical structure of the reflective sheet, the double-sided light guide plate, and the backlight LED light bar, which precisely controls the distribution of light. Through the integrated double-sided symmetrical backlight system, the uniformity and high brightness of the backlight can be ensured while being ultra-thin, so that the two liquid crystal display panels can present clear and consistent brightness images under different display requirements.

[0048] In order to control the display effect of the two liquid crystal panels at the same time, a video drive board is used to electrically connect and simultaneously control the positive and negative liquid crystal display panels. The video drive board is responsible for receiving input signals and adjusting the display content of the liquid crystal panel in real time according to the display requirements. By synchronously driving two liquid crystal panels with a single video drive board, the system circuit is greatly simplified, the power consumption and cost are reduced, and through efficient electrical connection and signal processing technology, it is ensured that the two panels can independently display content at the same time or synchronously display the same content according to user requirements, ensuring the stability of the image refresh rate and response time, thereby ensuring the smoothness and clarity of the double-sided display effect.

[0049] By constructing the ultra-thin double-sided display module, not only is it suitable for multiple application scenarios such as advertising display and information board, but also through its ultra-thin design and double-sided display function, it provides higher portability and multifunctionality for the display module.

[0050] In one embodiment, as shown in Figure 2 The integrated double-sided symmetric backlight system symmetrically includes, from the center to both sides, a reflective sheet 1, which is centrally arranged and used as an optical separation ridge; double-sided light guide plates, including a first light guide plate 21 and a second light guide plate 22, respectively attached to the two surfaces of the reflective sheet 1; a backlight LED light bar 3, which is arranged at the junction side of the double-sided light guide plates, and the center line of the LED lamp beads is aligned with the edge of the reflective sheet 1, so that light can be coupled into the double-sided light guide plates simultaneously and equally; a diffusion film group, including a first diffusion film 41 and a second diffusion film 42, respectively located outside the light output surfaces of the double-sided light guide plates; a prism sheet group, including a first prism sheet 51 and a second prism sheet 52, respectively located outside the diffusion film group, used for converging light and controlling the viewing angle in the horizontal or vertical direction; and a brightness enhancement film group, including a first brightness enhancement film 61 and a second brightness enhancement film 62, respectively located outside the prism sheet group, used for recovering polarization light loss to improve front brightness.

[0051] Specifically, the integrated double-sided symmetric backlight system can ensure that the double-sided display module can provide uniform and high-brightness backlight, and support simultaneous viewing angle display from different angles, while realizing the ultra-thin of the double-sided module. The integrated double-sided symmetric backlight system symmetrically includes, from the center to both sides, a reflective sheet 1, which is centrally arranged in the integrated double-sided symmetric backlight system and used as an optical separation ridge, for reflecting light from the backlight source to the liquid crystal display panel, ensuring that light can be uniformly distributed in the display area. Moreover, the reflective sheet 1 also ensures uniform illumination effect from two directions, i.e. the front and the back. The central ridge design of the reflective sheet 1 can accurately control the propagation direction of light, ensuring that light can be effectively reflected to both sides of the liquid crystal display panel, thereby avoiding light waste.

[0052] The double-sided light guide plate is composed of a first light guide plate 21 and a second light guide plate 22, respectively attached to the two surfaces of the reflective sheet 1, for guiding the light emitted by the backlight LED light bar 3 to the surface of the front and back liquid crystal display panel, and ensuring that the light can be uniformly distributed. The backlight LED light bar 3 is arranged at the junction side of the double-sided light guide plate, and the center line of the LED lamp bead is aligned with the edge of the reflective sheet 1, ensuring that the light can be coupled into the double-sided light guide plate simultaneously and equally. The diffusion film set includes a first diffusion film 41 and a second diffusion film 42, respectively located outside the light emitting surface of the double-sided light guide plate, which makes the light emitted by the backlight LED light bar 3 more uniformly diffuse, avoids local brightness being too high or too low, effectively reduces the possible light spot or uneven phenomenon, and improves the quality of display effect. The prism sheet set includes a first prism sheet 51 and a second prism sheet 52, respectively located outside the first diffusion film 41 and the second diffusion film 42 of the diffusion film set, for converging or guiding the light, effectively adjusting the propagation direction of the light, keeping good viewing angle control in the horizontal or vertical direction, and avoiding brightness attenuation or color distortion caused by viewing angle change. By replacing prism sheets with different angles, a product series meeting different market demands can be derived at low cost and quickly. The brightness enhancement film set includes a first brightness enhancement film 61 and a second brightness enhancement film 62, respectively located outside the first prism sheet 51 and the second prism sheet 52, for recovering polarization light loss, improving the front brightness of the display panel, and enhancing the clarity of the display effect.

[0053] By designing an integrated double-sided symmetric backlight system through a series of optical elements, the uniformity of the light source is optimized, the contrast and brightness of the display effect are improved, the ultra-thin display module can provide the best display performance under various environmental conditions, and the low power consumption and high efficiency of the ultra-thin display module are ensured.

[0054] Based on the target viewing angle switching direction, the backlight LED light bar and the optical elements in the integrated double-sided symmetric backlight system, and the front and back liquid crystal display panel are analyzed for viewing angle switching, and the viewing angle switching control parameter is determined.

[0055] Further, the viewing angle switching control parameter is determined, including: based on the target viewing angle switching direction, the backlight LED light bar in the integrated double-sided symmetric backlight system, and the front and back liquid crystal display panel are analyzed for viewing angle switching, to obtain LED light bar switching parameters and display panel switching parameters; the optical elements in the integrated double-sided symmetric backlight system are configured and controlled based on the target viewing angle switching direction, to obtain optical element configuration parameters; based on the LED light bar switching parameters and the display panel switching parameters, and the optical element configuration parameters, the viewing angle switching control parameter is determined.

[0056] Specifically, according to the target view switching direction, the backlight LED light bar in the integrated double-sided symmetric backlight system and the front and back liquid crystal display panel are analyzed for view switching. The change of the view switching direction causes the change of the light propagation path and distribution requirement, and then the light source distribution and brightness adjustment of the LED light bar are adjusted accordingly. For example, when the target view is deflected by a certain angle towards the front, the intensity and light-emitting area of the backlight brightness need to be adjusted accordingly to maintain the uniformity of the brightness. According to the target view switching direction, the propagation characteristics of the light in the new view direction are analyzed, and the brightness adjustment value of each LED lamp bead is calculated to obtain the LED light bar switching parameters, including the brightness increase / decrease amplitude, lighting or extinguishing state, etc.

[0057] For the front and back liquid crystal display panel, the target view switching will affect the clarity and color performance of the user watching the display content. Taking the front display panel as an example, when the view changes, the arrangement direction of the liquid crystal molecules needs to be adjusted accordingly to optimize the light transmittance and ensure that accurate and clear images can be presented at different views. By analyzing the optical characteristics of the liquid crystal molecules at different views and combining the driving circuit characteristics of the display panel, the driving voltage change value of each pixel point is determined, and then the display panel switching parameters such as the voltage adjustment amount of each pixel point and the refresh frequency change are obtained.

[0058] The optical elements in the integrated double-sided symmetric backlight system are configured and controlled according to the target view switching direction, for example, the prism angle of the prism sheet can be selected and combined according to the target view requirement. Specifically, when the left and right views need to be enhanced, a prism sheet with a prism angle of 90° is used; when the up and down views need to be enhanced, a prism sheet with a prism angle of 0° is used; and when the full view is needed, the prism sheets with angles of 0° and 90° are used in overlap. At the same time, the prism angle of the prism sheet is matched and optimized with the absorption axis angle of the polarizing sheet of the liquid crystal display panel, for example, for a liquid crystal screen with a polarizing sheet angle of 30° and 120°, a prism sheet with a specific angle is configured to maximize the avoidance of moire and improve the optical performance.

[0059] The final view switching control parameters are determined by combining the LED light bar switching parameters, the display panel switching parameters, and the optical element configuration parameters, which are used for the coordinated control of the backlight LED light bar, the optical element, and the front and back liquid crystal display panel to ensure that the ultra-thin double-sided display module can accurately and stably realize the target view switching and provide the best display experience for the user.

[0060] Further, the optical element configuration parameters are obtained by: combining the display module viewing angle requirement and the polarizer absorption axis angle of the positive and negative liquid crystal display panel to constrain and combine the target viewing angle switching direction, determining a viewing angle switching constraint parameter; based on the viewing angle switching constraint parameter, configuring and controlling analysis of the optical elements in the integrated double-sided symmetric backlight system to obtain a configuration parameter selection threshold; and performing viewing angle effect simulation and global parameter optimization on the configuration parameter selection threshold to obtain the optical element configuration parameters.

[0061] Specifically, the target viewing angle switching direction is constrained and combined according to the display module viewing angle requirement and the polarizer absorption axis angle of the positive and negative liquid crystal display panel. The display module viewing angle requirement is determined by the specific application scenario. For example, in an advertising display scenario, it may be necessary to allow users to clearly see the display content within a large range. The polarizer absorption axis angle of the positive and negative liquid crystal display panel affects the transmission and deflection characteristics of light. Different absorption axis angle combinations have different effects on the display viewing angle. By analyzing the viewing angle requirement range of the display module in different application scenarios, and considering the physical characteristics of the polarizer absorption axis angle of the positive and negative liquid crystal display panel, the target viewing angle switching direction is associated and constrained with these factors. For example, if the display module requirement needs to have good display effect within the range of 0°-60° on the front side and 120°-180° on the back side, and the polarizer absorption axis angles of the positive and negative panels are 45° and 135° respectively, the target viewing angle switching direction is selected and combined according to these conditions to determine the viewing angle switching constraint parameter that meets the display requirement. The viewing angle switching constraint parameter determines how the optical elements are regulated to adapt to different viewing angle switching requirements.

[0062] Based on the determined viewing angle switching constraint parameter, the optical elements in the integrated double-sided symmetric backlight system are configured and controlled. The optical elements mainly include a diffusion film group, a prism sheet group, and a brightness enhancement film group, etc., and their optical characteristics are closely related to the viewing angle switching effect. For example, by changing the light transmittance or position of the diffusion film, the uniformity of light can be optimized to ensure that the light distribution is uniform when light is irradiated from different angles, avoiding the phenomenon of light spots or brightness attenuation. The prism sheet can guide the propagation direction of light and adjust the viewing angle of light in the horizontal and vertical directions. According to the viewing angle switching constraint parameter, the angle of the prism sheet is accurately adjusted to ensure that the propagation of light does not deviate when the viewing angle changes. The role of the brightness enhancement film is to improve the brightness of the front display. Especially in the case of large loss of polarized light of the liquid crystal panel, by adjusting the position or angle of the brightness enhancement film, the display brightness can be improved, especially in the case of weak light or extreme viewing angle.

[0063] According to the view angle switching constraint parameter, the influence of different optical element configurations on the light propagation is analyzed, and according to the analysis result, the optical element configuration parameter range meeting the view angle switching constraint condition, that is, the configuration parameter selection threshold, is determined, which specifies the value range of each optical element parameter. The view angle effect simulation and global parameter optimization are performed on the configuration parameter selection threshold. The optical simulation software such as OpticStudio, LightTools or TracePro is used to input different parameter combinations within the configuration parameter selection threshold, simulate the display effect of the display module at different view angles, including brightness uniformity, color accuracy, contrast and other indicators, and obtain the view angle effect data corresponding to different parameter combinations. A global parameter optimization algorithm such as genetic algorithm, particle swarm algorithm, etc. is used to find the optimal optical element configuration parameter combination within the configuration parameter selection threshold. For example, a genetic algorithm is used to randomly generate a group of optical element configuration parameter combinations as the initial population, each individual represents a possible configuration combination, such as backlight LED strip brightness, prism angle, etc. The optical simulation software is used to input each configuration parameter combination to simulate the display effect at different view angles, such as brightness uniformity, color accuracy, contrast, etc. The performance indicators of each combination are calculated to evaluate their fitness, and individuals with high fitness show better display effect. Based on the fitness evaluation, better individuals are selected for crossover and mutation to generate new individuals, thereby generating a new generation of configuration combinations. The crossover operation simulates the combination of parameters, and the mutation introduces random changes to increase diversity and avoid falling into local optimal solutions. Through multiple iterations, the population gradually converges to the optimal solution, and finally the optical element configuration combination that can provide the best display effect at each view angle is obtained as the optical element configuration parameter, which is used to guide the actual configuration and adjustment of the optical element.

[0064] By accurately determining the optical element configuration parameters, it can be ensured that during the view angle switching process, the display module can efficiently and uniformly provide appropriate light for the positive and negative liquid crystal display panels, so that clear, accurate and colorful display effects can be presented at different view angles, meeting various application requirements, while minimizing energy consumption and improving light source efficiency, and improving user experience.

[0065] The view angle switching control parameter is used to control the view angle switching and effect evaluation of the ultra-thin double-sided display module, obtain the module view angle switching effect, and perform view angle optimization control through the module view angle switching effect.

[0066] Further, if the module view angle switching effect does not reach the preset switching effect, the view angle parameter optimization direction is obtained by analyzing the optimization direction of the module view angle switching effect; the view angle switching control parameter is optimized and corrected based on the view angle parameter optimization direction, and the view angle switching compensation control is performed through the corrected view angle switching control parameter.

[0067] Specifically, after obtaining the viewing angle switching control parameter, the viewing angle switching control parameter is input into the corresponding control system of the ultra-thin double-sided display module. The control system dynamically adjusts the corresponding elements of the ultra-thin double-sided display module according to the input viewing angle switching control parameter, so that the ultra-thin double-sided display module switches the viewing angle according to the target viewing angle switching aspect. After the viewing angle switching, the current display effect is evaluated, including evaluation indexes such as brightness uniformity, color accuracy, contrast, and viewing angle range. The evaluation process can be realized through built-in sensors or external vision systems, such as through integrated light sensors, color sensors, cameras, or other image acquisition devices, to monitor the brightness, color, contrast, and other parameters of the display module under different viewing angles in real time, quickly and accurately obtain feedback, and judge the current viewing angle switching effect. Further, the viewing angle optimization control is performed through the module viewing angle switching effect.

[0068] When the evaluation result shows that the module view angle switching effect does not reach the preset switching effect, the view angle switching effect of the display module is optimized and analyzed in the following specific manner: if the brightness uniformity is not up to standard, it is analyzed whether the non-uniform emission of the backlight LED light bar, the unreasonable microstructure of the light guide plate, or the inconsistent reflection efficiency of the ridge in the reflection sheet, etc. causes the problem. For example, if the brightness of a certain area on the front surface is significantly lower than that of other areas, it may be that the LED light bar corresponding to the area has insufficient brightness or the microstructure of the light guide plate has defects in the area. If there is a problem with color accuracy, check whether the absorption axis angle of the polarizing sheet of the front and back liquid crystal display panels is accurate, whether the arrangement of the liquid crystal molecules is correct, and whether the color characteristics of the backlight are stable. For example, if the display color is reddish, it may be that the red component in the backlight is too high or the transmittance of the liquid crystal molecules to red light is abnormal. If the contrast ratio is not up to standard, it may be related to the drive voltage setting of the liquid crystal display panel, the backlight brightness adjustment, and the configuration of the optical elements. For example, if the contrast ratio is low, it may be that the drive voltage is too low to completely block the light, or the high backlight brightness reduces the dark state brightness. The view angle range that does not meet the requirements may be due to the unreasonable design or improper configuration of the optical elements, which limits the direction of light propagation. For example, improper setting of the ridge angle in the reflection sheet may limit the reflection angle range of the light, thereby affecting the view angle range. Based on the above analysis, the specific view angle parameter optimization direction is determined, such as adjusting the brightness distribution of the LED light bar to increase the brightness, etc. Based on the results of the optimization direction analysis, the view angle switching control parameters are optimized and corrected according to the view angle parameter optimization direction, the existing parameter settings are adjusted, the deficiencies found in the view angle switching are compensated, and the display effect is ensured to reach the best. For example, if the analysis shows that the non-uniform brightness is caused by insufficient brightness of several LED light bars, the brightness adjustment value of these light bars is increased, and if the color deviation is caused by inaccurate absorption axis angle of the polarizing sheet, the installation angle of the polarizing sheet is adjusted. In the compensation control process, the display effect of the module is monitored in real time, and dynamic adjustment is made according to the monitoring results to ensure that the double-sided display module can reach the preset view angle switching effect.

[0069] Through the view angle switching control and optimization process, the ultra-thin double-sided display module can present clear, accurate, and colorful display effects at different view angles, meet diverse application requirements, improve the continuity and consistency of the display effect during view angle switching, and improve the adaptability and stability of the double-sided display module.

[0070] In the second embodiment, based on the same inventive concept as the view angle switching control method of the double-sided display module in the foregoing embodiments, as shown in Figure 3 The view angle switching control system of the double-sided display module comprises: The switching direction determination module 11 is configured to detect whether a user issues a switching view angle instruction through an input device, analyze the switching view angle instruction, and determine a target view angle switching direction; the display module building module 12 is configured to build an ultra-thin double-sided display module, the ultra-thin double-sided display module comprising a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system, wherein the integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet middle ridge, double-sided light guide plates and backlight LED light bars; the view angle switching analysis module 13 is configured to perform view angle switching analysis on the backlight LED light bars and optical elements in the integrated double-sided symmetrical backlight system and the front-rear liquid crystal display panel based on the target view angle switching direction, and determine view angle switching control parameters; and the view angle optimization control module 14 is configured to control the ultra-thin double-sided display module to perform view angle switching and effect evaluation by using the view angle switching control parameters, obtain a module view angle switching effect, and perform view angle optimization control through the module view angle switching effect.

[0071] Further, the switching direction determination module 11 is further configured to: identify the type of the switching view angle instruction to obtain a view angle switching instruction type; if the view angle switching instruction type is a manual explicit instruction, identify the triggering behavior of the view angle switching instruction type to obtain a switching instruction triggering behavior; perform logical analysis and judgment on the switching instruction triggering behavior to determine the target view angle switching direction; and if the view angle switching instruction type is a passive implicit instruction, perform analysis and judgment on the switching view angle instruction to determine the target view angle switching direction.

[0072] Further, the switching direction determination module 11 is further configured to: preset a view angle switching logic library according to the application requirements of the display module, the view angle switching logic library comprising an idle view angle switching logic and an environmental view angle switching logic; perform non-interactive time monitoring on the switching view angle instruction to obtain an idle state period; perform display switching analysis on the idle state period by using the idle view angle switching logic to determine the target view angle switching direction; monitor the environmental light intensity in real time, and perform analysis and judgment on the environmental light intensity based on the environmental view angle switching logic to determine the target view angle switching direction.

[0073] Further, the switching direction determination module 11 is further configured to: perform priority analysis on the switching view angle instruction to determine a switching instruction priority, the execution order of the switching instruction priority being a manual explicit instruction, an environmental view angle switching logic and an idle view angle switching logic; when there is a triggering conflict in the switching view angle instruction, activate the switching instruction priority; and perform priority selection judgment on the switching view angle instruction based on the switching instruction priority to determine the target view angle switching direction.

[0074] Further, the display module building module 12 comprises: a metal outer frame serving as an overall structure support and electromagnetic shielding; a front and back liquid crystal display panel respectively inlaid on the front and back surfaces of the metal outer frame by gluing; an integrated double-sided symmetric backlight system arranged between the front and back liquid crystal display panels; and a video drive board for electrically connecting and simultaneously controlling the front and back liquid crystal display panels.

[0075] Further, the integrated double-sided symmetric backlight system comprises: a reflective sheet 1 arranged centrally and serving as an optical separation middle ridge; double-sided light guide plates including a first light guide plate 21 and a second light guide plate 22 respectively attached to the two surfaces of the reflective sheet 1; a backlight LED light bar 3 arranged at the joint side of the double-sided light guide plates, and the center line of LED lamp beads is aligned with the edge of the reflective sheet 1, so that light can be coupled into the double-sided light guide plates simultaneously and equally; a diffusion film group including a first diffusion film 41 and a second diffusion film 42 respectively located outside the light exit surfaces of the double-sided light guide plates; a prism sheet group including a first prism sheet 51 and a second prism sheet 52 respectively located outside the diffusion film group, for converging light and controlling the horizontal or vertical viewing angle; and a brightness enhancement film group including a first brightness enhancement film 61 and a second brightness enhancement film 62 respectively located outside the prism sheet group, for recycling polarization loss to improve front brightness.

[0076] Further, the viewing angle switching analysis module 13 is further configured to: perform viewing angle switching analysis on the backlight LED light bar in the integrated double-sided symmetric backlight system and the front and back liquid crystal display panels based on the target viewing angle switching direction, to obtain LED light bar switching parameters and display panel switching parameters; perform configuration and control analysis on the optical elements in the integrated double-sided symmetric backlight system in combination with the target viewing angle switching direction, to obtain optical element configuration parameters; and determine viewing angle switching control parameters based on the LED light bar switching parameters and display panel switching parameters and the optical element configuration parameters.

[0077] Further, the viewing angle switching analysis module 13 is further configured to: combine the display module viewing angle requirement and the polarizing sheet absorption axis angle of the front and back liquid crystal display panels to constrain and combine the target viewing angle switching direction, to determine viewing angle switching constraint parameters; perform configuration and control analysis on the optical elements in the integrated double-sided symmetric backlight system based on the viewing angle switching constraint parameters, to obtain a configuration parameter selection threshold; and perform viewing angle effect simulation and global parameter optimization on the configuration parameter selection threshold, to obtain optical element configuration parameters.

[0078] Further, the view angle optimization control module 14 is further configured to: if the preset switching effect is not achieved by the module view angle switching effect, perform optimization direction analysis on the module view angle switching effect to obtain a view angle parameter optimization direction; perform optimization correction on the view angle switching control parameter based on the view angle parameter optimization direction, and perform view angle switching compensation control through the corrected view angle switching control parameter.

[0079] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The view angle switching control method and specific example of the double-sided display module in the first embodiment are also applicable to the view angle switching control system of the double-sided display module in the present embodiment. Those skilled in the art can clearly understand the view angle switching control system of the double-sided display module in the present embodiment through the foregoing detailed description of the view angle switching control method of the double-sided display module. Therefore, for the sake of brevity of the specification, the view angle switching control system of the double-sided display module in the present embodiment will not be described in detail.

[0080] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0081] Obviously, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A viewing angle switching control method of a double-sided display module, characterized by, The method comprises: Detecting whether a user issues a view angle switching instruction through an input device, analyzing the view angle switching instruction, and determining a target view angle switching direction; Building an ultra-thin double-sided display module, which comprises a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system, wherein the integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet middle ridge, double-sided light guide plates and backlight LED light bars; Based on the target view angle switching direction, view angle switching analysis is performed on the backlight LED light bars and optical elements in the integrated double-sided symmetrical backlight system and the front-rear liquid crystal display panel to determine view angle switching control parameters; The view angle switching control parameters are used to control the ultra-thin double-sided display module to perform view angle switching and effect evaluation, obtain a module view angle switching effect, and perform view angle optimization control through the module view angle switching effect. 2.The viewing angle switching control method of a double-sided display module according to claim 1, wherein, Determining the target view angle switching direction comprises: Type identification is performed on the view angle switching instruction to obtain a view angle switching instruction type; If the view angle switching instruction type is a manual explicit instruction, trigger behavior identification is performed on the view angle switching instruction type to obtain a switching instruction trigger behavior; Logical analysis and judgment are performed on the switching instruction trigger behavior to determine the target view angle switching direction; If the view angle switching instruction type is a passive implicit instruction, analysis and judgment are performed on the view angle switching instruction to determine the target view angle switching direction. 3.The viewing angle switching control method of a double-sided display module according to claim 2, wherein, The analysis and judgment of the view angle switching instruction to determine the target view angle switching direction comprises: A view angle switching logic library is preset according to display module application requirements, the view angle switching logic library comprises an idle view angle switching logic and an environmental view angle switching logic; Non-interaction time monitoring is performed on the view angle switching instruction to obtain an idle state period; The idle view angle switching logic is used to perform display switching analysis on the idle state period to determine the target view angle switching direction; The environmental light intensity is monitored in real time, and the environmental view angle switching logic is used to perform analysis and judgment on the environmental light intensity to determine the target view angle switching direction.

4. The viewing angle switching control method of a double-sided display module according to claim 3, wherein The method further comprises: Priority analysis is performed on the view angle switching instruction to determine a switching instruction priority, and the execution order of the switching instruction priority is a manual explicit instruction, an environmental view angle switching logic and an idle view angle switching logic; When there is a trigger conflict in the view angle switching instruction, the switching instruction priority is activated; Based on the switching instruction priority, a priority selection judgment is performed on the view angle switching instruction to determine the target view angle switching direction.

5. The viewing angle switching control method of a double-sided display module according to claim 1, wherein The ultra-thin double-sided display module specifically comprises: A metal outer frame serving as overall structural support and electromagnetic shielding; A front-rear liquid crystal display panel which is respectively glued and inlaid on the front and rear surfaces of the metal outer frame; An integrated double-sided symmetrical backlight system which is arranged between the front-rear liquid crystal display panel; A video drive board which is used to electrically connect and simultaneously control the front-rear liquid crystal display panel.

6. The viewing angle switching control method of a double-sided display module according to claim 5, wherein The integrated double-sided symmetrical backlight system comprises, symmetrically from the center to both sides, A reflective sheet is centrally arranged for serving as an optical separation middle ridge; Bilateral light guide plates are arranged on two surfaces of the reflective sheet, respectively; A backlight LED light bar is arranged on the joint side of the bilateral light guide plates, and the center line of the LED lamp bead is aligned with the edge of the reflective sheet, so that light can be coupled into the bilateral light guide plates at the same time and in equal amounts; A diffusion film group is arranged outside the light exit surface of the bilateral light guide plates, and includes a first diffusion film and a second diffusion film; A prism sheet group is arranged outside the diffusion film group, and includes a first prism sheet and a second prism sheet, for converging light and controlling the viewing angle in the horizontal or vertical direction; A brightness enhancement film group is arranged outside the prism sheet group, and includes a first brightness enhancement film and a second brightness enhancement film, for recovering the loss of polarized light to improve the front brightness.

7. The viewing angle switching control method of a double-sided display module according to claim 1, wherein The viewing angle switching control parameter is determined, including: Based on the target viewing angle switching direction, the backlight LED light bar in the integrated bilateral symmetric backlight system and the positive and negative liquid crystal display panel are analyzed for viewing angle switching, to obtain LED light bar switching parameters and display panel switching parameters; The optical elements in the integrated bilateral symmetric backlight system are configured and controlled based on the target viewing angle switching direction, to obtain optical element configuration parameters; Based on the LED light bar switching parameters and display panel switching parameters, and the optical element configuration parameters, the viewing angle switching control parameter is determined. 8.The viewing angle switching control method of a double-sided display module according to claim 7, wherein, The optical element configuration parameter is obtained, including: The target viewing angle switching direction is combined and constrained based on the display module viewing angle requirement and the polarizing sheet absorption axis angle of the positive and negative liquid crystal display panel, to determine the viewing angle switching constraint parameter; Based on the viewing angle switching constraint parameter, the optical elements in the integrated bilateral symmetric backlight system are configured and controlled, to obtain a configuration parameter selection threshold; The configuration parameter selection threshold is simulated for viewing angle effect and globally optimized for parameters, to obtain the optical element configuration parameter. 9.The viewing angle switching control method of a double-sided display module according to claim 1, wherein, The viewing angle is optimized and controlled through the module viewing angle switching effect, including: If the module viewing angle switching effect does not reach the preset switching effect, the module viewing angle switching effect is analyzed for optimization direction, to obtain the viewing angle parameter optimization direction; Based on the viewing angle parameter optimization direction, the viewing angle switching control parameter is optimized and corrected, and the viewing angle switching compensation control is performed through the corrected viewing angle switching control parameter.

10. A viewing angle switching control system of a double-sided display module, characterized by, The steps of the viewing angle switching control method of the bilateral display module according to any one of claims 1 to 9 are implemented, and the viewing angle switching control system of the bilateral display module includes: A switching direction determination module is configured to detect whether a user issues a viewing angle switching instruction through an input device, analyze and determine the target viewing angle switching direction based on the viewing angle switching instruction. The display module building module is used for building an ultrathin double-sided display module, the ultrathin double-sided display module comprising a front-rear liquid crystal display panel and an integrated double-sided symmetrical backlight system, wherein the integrated double-sided symmetrical backlight system adopts a symmetrical structure of a reflective sheet middle ridge, double-sided light guide plates and backlight LED light bars; The viewing angle switching analysis module is used for performing viewing angle switching analysis on the backlight LED light bars and optical elements in the integrated double-sided symmetrical backlight system and the front-rear liquid crystal display panel based on the target viewing angle switching direction, and determining viewing angle switching control parameters; The viewing angle optimization control module is used for controlling the ultrathin double-sided display module to perform viewing angle switching and effect evaluation by using the viewing angle switching control parameters, obtaining a module viewing angle switching effect, and performing viewing angle optimization control through the module viewing angle switching effect.

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