Vehicle structure

Abstract

The invention relates to a vehicle structure which comprises a display module and a control system, the display module is a plane, curved surface or high-flexibility display screen body capable of being attached to the complex three-dimensional surface of a vehicle shell, and the display screen body is composed of multiple layers of planes, curved surfaces or flexible composite structures; a stress dispersion layer and a plane or curved surface self-adaptive supporting structure are arranged between the display screen body and a vehicle body, and the stress dispersion layer is made of materials such as high-elasticity polymers, buffer gel or micro-structure buffer pads. According to the vehicle structure, by arranging the stress dispersion layer and the plane or curved surface self-adaptive supporting structure, the problem of stress concentration when a traditional device is attached to a complex curved surface of a vehicle is effectively solved, the structural stability of the device under driving vibration, temperature change or external impact is improved, and it is ensured that the display module is not delaminated, not deformed and not broken; and the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the display technical field, specifically to a vehicle structure. BACKGROUND

[0002] With the development of automobile intelligence and individualization, integrating display function on vehicle shell becomes a new trend, which can realize information display, appearance dynamicization and other functions, and the performance of vehicle structure as a key component adapting to complex surface of vehicle directly affects the display effect and service life.

[0003] In the prior art, the display device for vehicle shell has many problems, since the vehicle shell is mostly complex three-dimensional curved surface, the traditional flat display screen is difficult to fit, and forced installation is easy to cause stress concentration, and the phenomenon of cracking and delamination is easy to occur when driving vibration or temperature changes; at the same time, image distortion is easy to occur when curved surface is displayed, which affects the visual effect, and the existing device is insufficient in anti-vibration fatigue, thermal stress adaptation and other weather resistance performance, and it is difficult to meet the needs of long-term outdoor use of vehicle. SUMMARY

[0004] To achieve the above object, the present application provides the following technical scheme: a vehicle structure, comprising a display module and a control system, wherein the display module is a flat, curved or high-flexibility display screen body that can fit the complex three-dimensional surface of the vehicle shell, and the display screen body is composed of multiple layers of flat, curved or flexible composite structure.

[0005] A stress dispersion layer and a flat or curved self-adaptive support structure are arranged between the display screen body and the vehicle body, the stress dispersion layer is made of high-elasticity polymer, buffer gel or micro-structure buffer pad and other materials, and can uniformly conduct and disperse the bending stress and impact stress when the display screen body is fitted or subjected to external force, so as to avoid stress concentration in a single bending or edge part and improve the bending resistance.

[0006] The flat or curved self-adaptive support structure is a three-dimensional adjustable support grid or a partitioned independent buffer support, which can automatically adjust the support height and pressure according to the local curvature change of the vehicle body, realize high-precision fitting with the complex surface, and keep the structure complete, not delaminated, not deformed, not cracked under driving vibration, temperature change or external impact.

[0007] The control system can correct the distorted display content and output it to the vehicle body curved display screen body for display, so that the visual content of the vehicle body curved display screen body and the flat display screen body forms a continuous and smooth transition, and ensures that the display content has normal visual effect on the whole vehicle body without significant deformation.

[0008] Further, the control system can obtain the curvature information of the display screen installed on the curved surface of the vehicle shell in the three-dimensional space through the hardware interface; convert the original video signal into the image frame to be mapped; construct a curved surface coordinate mapping model based on the curvature information, and then use the B-spline curved surface fitting, Bezier curved surface fitting or bilinear interpolation algorithm to perform image distortion correction processing on the image frame to be mapped based on the mapping model, to generate the image frame after distortion correction; finally, output the image frame after distortion correction to the vehicle body display screen body for display, to ensure that the display content has normal visual effect on the curved surface of the vehicle body without significant deformation.

[0009] Further, the display module comprises: A) a display unit that can present images outside the vehicle in a curved state; B) a lamination layer arranged between the display unit and the vehicle body outer cover / carrying member, the layer comprising at least a stress homogenization layer and an adhesive layer; C) a support structure connected to the vehicle body, which provides positioning and constraint for the display unit under vehicle operation and temperature cycle conditions; wherein: a) the equivalent in-plane shear modulus and thickness of the stress homogenization layer are configured to spatially redistribute the maximum principal stress and / or strain energy density between the display unit and the vehicle body caused by curvature and thermal expansion mismatch to below a predetermined threshold under vehicle thermal cycling, vibration and impact conditions; b) the support structure comprises at least one constraint-release pair: a first constraint point pair that provides reference positioning for the display unit and the vehicle body, and at least a second constraint point that allows relative sliding / elastic displacement to compensate for dimensional changes caused by curvature and temperature difference, thereby inhibiting stress concentration and cracking / delamination. The stress homogenization layer is a soft-hard gradient layer with a gradual change in Young's modulus in the thickness direction or in-plane direction to achieve neutral surface migration and reduce stress concentration. The stress homogenization layer is selected from at least one of the following: thermoplastic / thermoset elastomer, silicon-based gel, ionomer, PU / EMA blend, microcellular foam, interlayer microbead / cavity structure. The adhesive layer is a zoned / island / chessboard adhesive pattern, and the area ratio and spacing of the adhesive area and pressure relief area are configured to form a controlled shear slip path while maintaining peel strength. The edges of the island-shaped adhesive area use rounded corners / tooth-shaped / curved transitions to blunt stress concentrations. The edges of the display unit are provided with a stepped lap / scarf / stair structure, and a transition fillet R is formed at the root of the step, thereby reducing the peak stress of edge peeling. The support structure comprises a honeycomb core / corrugated rib / frame-rib composite skeleton that reduces the surface density while maintaining bending stiffness. The support structure is provided with crack arrest / shunt geometry at the opening, notch, fastening hole, including crack arrest hole, buffer groove, S-shaped buffer groove or local thickening reinforcement. The constraint-release pair uses 3-2-1 equivalent isocordinate positioning: three-point reference positioning, two-point guidance and one-point floating release. The release point includes a long circular hole + slider / sleeve, a flexible hinge or an elastic buffer pad to allow in-plane micro-displacement. A shear damping layer (damping tan δ ≥ 0.2 @ 10-200 Hz) is arranged between the display unit and the support structure to suppress picture jitter caused by road noise / wind vibration coupling. The periphery is provided with an equal pressure / hygroscopic channel and a perimeter seal to form a moisture-proof-pressure relief composite system, which reduces the internal pressure gradient of the cavity and avoids interface degradation caused by moisture absorption when the air pressure / temperature changes rapidly. The display unit is any one or a combination of the following: MicroLED, miniLED direct display, AMOLED, quantum dots, electronic paper, and micro-projection optical hybrid layer. A transparent protective layer (chemically tempered glass / transparent ceramic / PC composite) is arranged outside the display window, and an anti-reflection / low reflectivity film system and a hard coating layer are arranged between it and the display unit.The strain / temperature / humidity sensing units (strain gauges / FBGs / printed conductive mesh) are embedded in the lamination and / or support structure for in-service monitoring and triggering the derating / brightness limiting / shutoff strategy when the threshold is exceeded. The adhesive interface is controllable debonding: cohesive failure is preferred to interface failure under the triggering conditions of heat, electricity, light or magnetism, so as to avoid damage to the vehicle body during maintenance and replacement. The edge of the display unit is provided with a pedestrian collision energy absorption zone and a detachable weak zone, which realizes controlled decoupling without forming sharp fragments under the working condition of pedestrian protection regulations. Multiple display units are connected by a splicing joint-seam modulus bridging layer, and a cross-module compensation with timing / luminance balance is arranged in the seam area to eliminate the optical and mechanical discontinuity of the splicing seam. The seam area adopts one of Z-shaped engagement, stepped overlap and dovetail groove to disperse stress and improve in-plane shear bearing. After at least 500 thermal cycles from -40°C to +85°C, the interface peeling length and the maximum principal strain are not more than the preset limit, and the picture displacement jitter RMS is lower than the preset threshold under the excitation of ISO / GB road spectrum. A vehicle comprising a curved display assembly, a vehicle body controller and a display controller of the vehicle are configured to implement closed-loop limitation of brightness / duty ratio / driving power of the display unit according to the output of the sensing unit, so as to maintain operation within the stress threshold. A lamination method for a curved display assembly is also included, comprising: a) plasma / crown treatment and primer coating of the display unit and the surface of the carrier, and preforming the curvature; b) laminating the stress homogenization layer-adhesive layer to form the lamination stack, and laminating under vacuum / negative pressure conditions; c) using segmented / gradient curing or regional sequential curing, first curing near the constraint point, and then expanding to the release area, to form a controlled shear gradient; d) adjusting the island-shaped adhesive pattern area ratio and the release groove morphology based on three-dimensional topography / strain field measurement during lamination, so that the stress extreme value is lower than the target threshold; e) after completion, perform thermal-humidity aging, cold-hot impact and vibration combined screening and record the in-service baseline data. In step c), spatial programmable curing is achieved by selective heating of light / heat / microwave to construct the in-plane modulus gradient. In step d), the strain energy density distribution is inversed online by digital image correlation (DIC) / FBG array, and the slip release stroke and the long circular hole direction are adjusted in a closed loop. After lamination is completed, timing synchronization / luminance cross-module calibration is performed in the splicing seam area, and the bridging layer under the seam is subjected to secondary curing to stabilize the mechanical and optical consistency.

[0010] Further, the display module comprises: a curved display module constituting a part of the outer surface of the vehicle; a bonding layer arranged between the curved display module and the vehicle body carrier, the bonding layer comprising at least one stress homogenization structure for sharing / redistributing normal and tangential loads; a support-decoupling mechanism fixed to the vehicle body carrier, providing support stiffness in the normal direction and displacement compliance in the tangential direction to compensate for curvature and thermal expansion mismatch; a boundary anti-peeling member arranged at the boundary or corner of the display active area for reducing the initiation of peeling cracks and stress concentration; a sealing and surface protection layer for environmental protection; wherein the bonding layer and the support-decoupling mechanism cooperate, so that under the rated environment and vehicle working condition, the peak principal stress / average principal stress ratio of the curved display module is lower than a predetermined threshold, and the display function is stable or controlled failure is achieved when impact or thermal cycling occurs. The stress homogenization structure is a modulus gradient layer and / or an equivalent multi-layer composite, and the equivalent Young's modulus monotonically increases from the display side to the vehicle body side in the thickness direction. The bonding layer comprises: an optically transparent adhesive layer (OCA), a buffer layer (elastomer / foam / gel), and an optional barrier film (inorganic / organic-inorganic composite) arranged therebetween or thereon for reducing water vapor penetration and inhibiting thermal stress. The stress homogenization structure adopts one or more of honeycomb, grid, micropore, or auxetic microstructure. The support-decoupling mechanism comprises: a combination of arc-shaped ribs / annular reinforcing ribs and radial / radial ribs arranged in the curvature direction; and a shear slip interface or an arc guide groove+guide pin is arranged between the rib and the display back plate to provide tangential compliance. The support-decoupling mechanism comprises a thermal expansion compensation member, which is at least one of a slider-slot, a dovetail-slide, a corrugated sheet, a bimetallic / shape memory alloy element. The boundary anti-peeling member is at least one of an undercut / edge curling / step shoulder / tapered edge to increase the effective peeling angle and prolong the crack propagation path. The display module adopts island-bridge segmentation: a plurality of rigid or semi-rigid display sub-modules are connected by flexible interconnection bridges, and the gap between the sub-modules is covered by a stretchable cover to reduce the in-plane tensile stress of the large curvature area. The bonding layer edge is provided with a stress-humidity double channel: microgrooves / micropores form closed or semi-closed flow-release pressure paths after lamination and curing, for slow release of curing shrinkage, and for guiding out residual solvent and moisture. The sealing and surface protection layer is a double-sealing structure, the inner channel is an elastomer or fluid sealant, and the outer channel is a heat / UV curing structure adhesive or epoxy-siloxane copolymer; and a breather valve / dry chamber can be optionally arranged to balance the internal and external pressure difference and inhibit condensation. A heat-conducting-heat-insulating composite channel is arranged between the back of the display module and the vehicle body carrier: local high thermal conductivity interface material and heat diffusion sheet, and non-functional area is a heat insulation layer, to reduce the thermal-mechanical coupling stress caused by temperature gradient. The flexible electrical connection adopts a serpentine / loop / corrugated strain release structure, and strain limiting patches or reinforced pads are arranged at the corners or perforations to avoid stress concentration at the solder joints / via holes.Crack termination holes / rounded corners / pre-crack guide slots are set at the geometric discontinuities of the display active area corners, openings, notches, etc. to control the crack initiation direction and prevent debris scattering. The normal equivalent stiffness and tangential equivalent compliance of the support-decoupling mechanism satisfy: within the target curvature R and ambient temperature range, the maximum principal stress of the display stack is lower than the first proportional coefficient β of the material yield / debonding limit, and the peak-to-average ratio α ≤ a set threshold. The thickness or modulus of the conforming layer gradually changes along the in-plane position, increasing the thickness / reducing the modulus in the corner, boundary or small curvature radius area to achieve smooth transition of in-plane stress. The boundary anti-peeling component and the conforming layer form a three-dimensional interlocking in the boundary area: micro-ridges / blind holes / barbs-groove interlocking, which improves the interfacial anti-peeling critical energy. The sealing and surface protection layer includes a stack of self-healing coating and hard scratch-resistant top coating to achieve self-healing through polymer chain segment migration or microcapsule release when microcracks occur, reducing crack tip stress concentration. The support-decoupling mechanism is an adjustable pre-tightening structure, which sets the pre-tightening force through wedge, eccentric cam, micro thread or expansion rivet during assembly / in-service stage to offset residual stress and environmental drift. The conforming layer adopts multi-mechanism composite bonding: superposition of covalent bond + van der Waals / hydrogen bond / mechanical interlocking, and the interfacial energy is improved through plasma / ultraviolet-ozone / silane coupling treatment. The conforming layer is a detachable-re-laminatable structure: a peeling starting strip and a reactivation guide strip are set at the boundary, so that the damaged part can be replaced locally at low temperature / low pressure on site. The assembly contains strain / temperature / pressure sensors and constitutes a closed loop with micro actuators (piezoelectric / shape memory / micro spiral spring) to maintain the target stress distribution. The controller executes stress-curvature-temperature coupling compensation strategy to dynamically adjust the local support pre-tightening or allow tangential energy release displacement when the thermal gradient is high or the wind load is large.

[0011] Further, the display module further comprises: A) a display unit located on the outer surface of the vehicle; B) a structural bearing subsystem connecting the display unit with the vehicle body carrier, constituting part of the vehicle outer cover and bearing external loads under driving, vibration, temperature cycling and collision conditions; C) a physical interface subsystem providing power and data for the display unit, including at least one power interface and one data / control interface; D) an environmental and electrical safety subsystem arranged between the display unit, the structural bearing subsystem and the physical interface subsystem, for sealing, waterproofing, dustproofing, thermal management and electromagnetic compatibility / electrostatic protection; wherein: a) the structural bearing subsystem is configured to shunt out-of-plane impact, in-plane tension and compression, and bending and torsional loads to the vehicle body reference structure, while allowing the display unit to produce controlled micro-displacement / slip relative to the vehicle body to compensate for thermal expansion and curvature mismatch, thereby controlling the maximum principal stress and interface peeling energy below the target threshold; b) the physical interface subsystem maintains reliable connection and polarity / type error prevention in a live and splashing / rain / washing environment, and suppresses electromagnetic interference on vehicle-mounted systems and surrounding traffic participants through shielding / grounding paths; c) in the event of an anomaly (mechanical tripping, water ingress, over-temperature, short circuit), the assembly enters a safe predetermined state, including at least one of power limiting, power supply disconnection and mechanical anti-falling restraint. The structural bearing subsystem includes a frame-rib-surface composite skeleton, and the panel is connected to the skeleton through 3-2-1 equivalent positioning and at least one release degree of freedom. The connection point adopts a structure arrangement with shear bearing as the main and peeling bearing as the auxiliary, and contains at least one of a long circular hole, a slider or a flexible hinge to provide controlled slip. The skeleton adopts a honeycomb core, corrugated ribs or closed thin-walled profiles, and sets stop crack holes / transitional round corners / local thickening at the opening, corner and fastening point to passivate stress concentration. The edges of the display unit are provided with one of stepped lap joints, scarf joints or dovetail grooves, and a modulus bridging layer is arranged under the joint to smooth the mechanical and optical discontinuity. The assembly includes at least one controlled decoupling path: in pedestrian protection or specific collision conditions, the display unit and the skeleton are decoupled through a weak belt / trigger groove, and are prevented from flying off by a secondary restraint system (safety rope / hidden buckle). The power interface includes at least one of a low-voltage power supply pair and an optional medium-voltage / backlight power supply pair, both adopting a foolproof key position and a secondary locking structure, and having a mechanical tripping → load disconnection first and ground disconnection second disconnection sequence. The data / control interface supports one or a combination of automotive Ethernet (single pair), CAN / CAN FD, GMSL / FPD-Link or LVDS, and achieves 360° shielding continuity through a shielded pair + 360° metal shell. All interfaces are sealed wall penetrating elements or blind insertion floating seats, with axial floating / angle compensation capability to absorb assembly tolerances and vehicle body deformation. Stress release and harness guide are arranged at the rear end of the interface, including a serpentine allowance, a clamp, a stress release shoe and a partition buckle, to avoid wire harness bending radius and terminal pull force exceeding the limit.The environmental and electrical safety subsystem includes a double-channel perimeter seal and equal-pressure drainage structure: an inner seal assumes electrical protection, and an outer seal assumes environmental isolation, with a moisture / water pressure guide channel between the two to avoid condensation and positive / negative pressure impact in the cavity. The outer surface of the assembly is provided with a hard coating / scratch-resistant / anti-chemical corrosion layer, and a low reflectivity film system is applied to the light transmission area to reduce reflected glare and heat load. The shielding grounding path uses conductive gaskets / woven tapes / conductive foam to connect the interface shell and the vehicle body to the same potential, and the grounding resistance and inductance meet the preset threshold; the ESD discharge is introduced into the vehicle body ground through a controlled tip / drainage electrode. Insulating isolation and anti-electrochemical corrosion layers are provided at the contact between dissimilar materials, including anodizing, insulating gaskets or coating isolation. A thermal interface material (TIM) and a thermal expansion layer (copper / graphite / steam cavity) are provided between the display unit and the skeleton, and heat is guided to the heat dissipation ribs / heat conduction channels through the skeleton, with the junction temperature controlled within the preset limit under the target working condition. The lower edge or back of the assembly is provided with a drainage / dust removal window, which is configured to form a Venturi negative pressure under high-speed water splashing and washing conditions to facilitate drainage. The structure connection adopts a double-layer scheme of main connection + quick release secondary connection: the main connection provides long-term bearing, and the secondary connection is a quick-release locking / quarter-turn locking to support in-service replacement. The interface is self-cleaning and blind, and can realize three-step fitting of guidance-centering-locking in invisible occasions, and has a misplug non-locking function. The assembly can be replaced as an independent replaceable module, and after replacement, the sealing, grounding continuity and interface function are confirmed through an automatic calibration / self-check sequence. Power-off detection and mechanical tripping detection sensors are provided at the interface, which trigger the system to perform power limiting / shut down and report; at the same time, the secondary restraint retention module is controlled to stay, avoiding throwing. Energy absorbing layers / foam / compressible ribs are provided at the edge of the outer cover and the potential contact area with pedestrians to reduce peak acceleration and contact force under regulatory working conditions. The splicing joint between multiple display units adopts a stepped staggered / staggered bolt band and a bridge layer with the same modulus under the joint, and the joint interface adopts a cross-module busbar / ground loop bridge to maintain power and shielding continuity. A buffer band and a limiting table are provided in the splicing area to limit the relative displacement when the heat cycle and the vehicle body are twisted, preventing the joint edge from lifting and the seal from failing. After at least 500 thermal cycles and road spectrum vibration combined tests of the assembly at -40°C to +85°C, the interface contact resistance, grounding continuity, insulation resistance and shell leakage rate do not exceed the preset limit, and the assembly remains functional stable or controlled failure under high-pressure water injection / salt spray / dust conditions. A vehicle comprising the display outer cover assembly, the wiring harness system and the grounding system of the vehicle are configured to meet the shielding continuity and failure safety strategy of the assembly.

[0012] Further, the manufacturing-assembly-calibration-testing integrated system of the display module is also included, comprising: A) a manufacturing subunit for surface treatment, lamination and curing of the display module and the carrier / seal / interface; B) an assembly subunit for positioning, fixing and controlled release degree configuration of the display module and the vehicle body reference structure, and completing the connection and stress release arrangement of the power / data physical interface; C) a calibration subunit for measuring, estimating and compensating the display brightness / chromaticity / uniformity / joint consistency / timing synchronization in the factory and in-service stages, and generating the calibration data package bound with the unique identification of the component; D) a testing and compliance verification subunit for implementing the end inspection and type verification of environmental / electrical / optical / EMC / sealing projects, and triggering the controlled degradation and repair loop when abnormal; E) a data and evidence subunit for storing the strategy version, parameter threshold, detection result and process track integrity protection and generating a verifiable compliance report; wherein the system is configured to: a) limit the stress and geometric error to be less than the preset threshold during the lamination / assembly / calibration process, and suppress the interface failure caused by curvature and thermal mismatch through release degree and compensation algorithm; b) automatically enter the safe determined state and lock the factory release when any key test project fails or exceeds the limit; c) the calibration data package is bidirectionally bound with the vehicle identification information and the component serial number and is anti-rollback to prevent unauthorized replacement or bypassing the calibration. The manufacturing subunit includes a process chain of surface activation-primer-preforming-vacuum / negative pressure lamination-segmented / gradient curing, wherein the segmented curing sequence is performed in the order of reference constraint zone→ transition zone→ release zone to form a controlled shear gradient. The lamination stack includes a stress homogenization layer and an adhesive pattern layer, the adhesive pattern being one of island, grid and ring belt, and the area ratio and spacing of the adhesive area and the pressure relief area are configured to form a controllable micro-slip path while meeting the peel strength. During the manufacturing process, the curved display module is preformed with an arc and compensated for springback, and the forming amount is adjusted in a closed loop with three-dimensional topography measurement / digital image correlation (DIC). The assembly subunit adopts 3-2-1 equivalent positioning and at least one release degree, and the release structure includes at least one of a long circular hole, a slider and a flexible hinge to limit the peak stress of the interface under temperature cycling and body torsion. The power and data interface is a sealed through-wall piece or a blind plug floating seat with axial / angle compensation and secondary locking, and is connected to the vehicle body equipotential through 360° shielding continuity ground. The wire harness is provided with stress release and guide structure, including a serpentine allowance, a sheath, a bending limit clamp and a partition buckle, and meets the connection / disconnection sequence of grounding first and then electrifying, and breaking the load first and then breaking the ground. The calibration subunit performs at least one of white field / grey scale / color matrix calibration, pixel-level uniformity compensation (Demura), local highlight suppression, moving texture complexity constraint and joint boundary mixing according to the measurement data obtained by the standard test pattern and the camera / spectroscopic / photometric acquisition.The timing synchronization calibration adopts multi-domain synchronization: frame clock phase-locked loop, scan phase alignment, and cross-panel / cross-vehicle boundary brightness consistency optimization, and automatically downgrades to independent safety mode when synchronization fails. The calibration data packet contains compensation lookup table / parameter vector / version label / timestamp / hardware fingerprint, and is protected by secure unit signature and hash chain, and is bidirectionally bound with vehicle identification information and return verification. The test and compliance verification sub-unit contains at least three combined tests in environmental sealing / water intrusion / dust intrusion, cold and hot impact and thermal cycle, road spectrum vibration, optical performance, EMC and ESD, power supply and insulation, mechanical impact and external washing, and implements release judgment on indicators such as brightness / flicker / color difference / joint seam consistency / ground continuity / leakage rate / insulation resistance, etc. The sub-unit includes a hardware-in-the-loop / software-in-the-loop platform driven by a regulatory scenario library, which is used to reproduce compliance gating and safety established state verification under conditions such as real vehicle driving / weather / adjacent traffic subjects, etc. The system-generated compliance report and factory certificate contain policy version, gating logic, test coverage, and out-of-limit handling information, which can be used for in-service spot checks and dispute evidence. The component periodically triggers a health self-check sequence and rapid compliance review during the in-service stage, and when the indicators such as temperature rise / humidity / interface contact resistance / optical attenuation exceed the limit, it automatically performs derating operation / brightness limiting / blanking or shutdown and reports. After replacement, it can only be released from operation restrictions after passing the automatic self-check / sealing and ground continuity / calibration data consistency check. The time-frequency composite imperceptible watermark and device fingerprint are embedded in the display output, and an external detection process is provided to determine whether the calibration / compliance has been bypassed or tampered with. The data and evidence sub-unit maintains a version-irreversible policy and a one-way counter, and a multi-signature is required for the calibration / policy downgrade request to take effect. After a set number of cold and hot cycles and road spectrum vibration joint tests, the interface peeling length, maximum principal strain, grounding / insulation indicators, and optical consistency all meet the pre-set threshold; maintain functional stability or controlled failure under high-pressure washing / salt spray / dust. The display component manufacturing-assembly-calibration-test method includes: a) surface activation, primer and pre-forming are performed on the display unit and carrier, and the assembly is completed under vacuum / negative pressure conditions and segmented / gradient curing; b) at least one release degree of freedom is configured to complete the assembly by positioning 3-2-1, connecting the sealed wall penetrating interface, and implementing wire harness stress release; c) standard patterns and sensing data are collected, brightness / chromaticity / uniformity / joint seam and timing synchronization calibration are performed, and calibration data packets bound to the unique identifier of the component are generated; d) environmental / optical / electrical / EMC and sealing end inspection items are performed, and when failed, enter the safety established state and repair; e) key parameters, decision elements and execution trajectories are stored with integrity protection and compliance reports are generated. In step a), the reference constraint area is first cured, and then the release area is expanded to build the in-plane modulus / shear gradient. In step c), the flicker spectrum is shaped and the first and second order derivatives of brightness change are limited to suppress glare and visual flicker.Step d) includes hardware-in-the-loop / software-in-the-loop regulatory scenario library driven compliance verification and inclusion of policy pre-emption / derating / shutdown paths into test coverage. Also included is a computer readable storage medium having stored thereon instructions that, when executed by a processor, cause a computing device to perform the described method. A vehicle including the described system or the described any method manufactured / assembled / calibrated / tested display assembly, the body controller of the vehicle configured to implement at least one of dimming / frame rate / duty cycle compression / shutdown of display parameters upon in-service self-test out-of-limits.

[0013] Further, the display module further comprises a video playback communication and interoperation system for the housing display screen, comprising: A. a housing display module integrated with or fixedly connected to the vehicle outer cover, for presenting dynamic images; B. a display controller for pixel-level driving and timing control of the housing display module; C. a communication and interoperation gateway coupled to the display controller and at least two types of communication links, including: C1. an in-vehicle network link for data interaction with other electronic and electrical systems of the vehicle; and C2. an out-of-vehicle network link for data interaction with a remote server, a roadside unit or other vehicles; D. a protocol adaptation and abstraction layer provided in the communication and interoperation gateway, for mapping multiple heterogeneous protocols to a unified standardized message model; E. a capability and version negotiation unit for exchanging capability descriptions and selecting compatible interoperation configuration files when establishing a connection with a peer; F. a time base synchronization unit for aligning the display playback timing to a reference clock and maintaining a certain synchronization accuracy; G. a security and compliance module located at a mandatory gate position between the data plane and the control plane, for admitting, downgrading or suppressing display behavior based on vehicle state, geographical and time domain, peer trustworthiness and content attribute; H. a quality and path management unit for multi-path aggregation, congestion control and adaptive bit rate / frame rate switching under conditions of multiple link concurrency, bandwidth / latency variation or packet loss; wherein the system is configured to interoperate multiple communication protocols and versions through the protocol adaptation and abstraction layer without changing the other electronic and electrical architecture of the vehicle, and to select a target interoperation configuration file under the drive of the capability and version negotiation unit to complete reliable reception, integrity verification, timing alignment and controlled presentation of video content. The in-vehicle network link supports at least one of the following: CAN, CAN-FD, LIN, FlexRay, Ethernet (including AVB / TSN), SOME / IP, DoIP, UDS, Ethernet diagnostics, and compatible or evolved variants thereof. The out-of-vehicle network link supports at least one of the following: 4G / 5G cellular (including mMTC / eMBB / URLLC), C-V2X (PC5 and Uu interfaces), DSRC, Wi-Fi, Bluetooth, satellite communication or compatible / evolved variants thereof. The unified standardized message model adopts a type-length-value (TLV), JSON or CBOR structure, and adopts a ignore-reserved policy for unknown fields to maintain backward and forward compatibility. The capability description includes at least: supported codec format, maximum / minimum resolution, maximum refresh rate, supported DRM / signature algorithm, maximum brightness and reachable synchronization accuracy threshold. The interoperation configuration file defines mandatory signals and time base requirements, including at least: time synchronization method, content fragment size, buffering strategy, packet loss hiding strategy and out-of-sync re-entry strategy. The time base synchronization unit supports at least one of the following: GNSS timekeeping, IEEE 1588 PTP (including gPTP / TSN), network clock recovery and local oscillator taming, and enters a conservative playback mode when out of lock.Security and compliance enforcement: end-point identity authentication, certificate chain validation, signature / hash verification, key rotation and revocation check, and blocking or downgrading for non-compliant content. Quality and path management unit aggregates multiple paths for cellular, Wi-Fi and car-to-car direct links, and schedules and retransmits at packet or segment level based on path scores. Display controller supports adaptive bitrate (DASH / HLS or equivalent) and adaptive frame rate switching, and timestamps switching events for alignment to avoid screen tearing. Communication and interoperation gateway contains logically isolated security domains, isolates external incoming streams and in-vehicle safety critical buses with hardware firewall / gateway, and rate limits and whitelists packet filtering. Protocol adaptation and abstraction layer contains bridges for legacy in-vehicle buses to convert necessary status signals to the standardized message model without modifying legacy ECU software. Security and compliance enforcement triggers mandatory dimming, freeze frame or screen off when receiving risk events (emergency braking, collision warning, road construction) from ADAS / V2X. System supports group collaborative playback: multiple vehicles as member nodes establish clock and content queue alignment over car-to-car direct or cellular network, and presents an integrated picture on each vehicle's display module through partitioning / stitching. Group collaborative playback adopts decentralized master-slave or consensus-based master election, and seamlessly switches within a limited time when master node fails. System embeds verifiable watermarks / fingerprints in video content or control signaling for post-facto forensics and cross-link consistency check. Certificates and trust roots are protected by on-board security unit (TPM / HSM), and supports remote attestation for cloud or road-side unit to verify system operational status and software version. Supports OTA update of the interoperation profile, protocol adapter and policy rules, and update process adopts dual-partition rollback and atomic switching. In-vehicle network interaction adopts SOME / IP or DDS topic / service model, supports service discovery, version negotiation and hot-plug device online / offline notification. System automatically selects higher priority safety / compliance control signaling channel and delays or suppresses non-critical media data under bandwidth insufficient or high packet loss conditions. Time-base synchronization unit sets synchronization threshold, and suspends cross-vehicle stitching and falls back to single-vehicle independent playback when synchronization error exceeds the threshold. Capability and version negotiation unit supports differential privacy or coarse-grained geographical / speed information minimization exchange to complete the minimum sufficient data set required for compliance determination. Communication and interoperation gateway records protected transaction logs, including policy version, decision reason, certificate digest, timestamp and geographical grid index, for verifiable audit. System automatically selects corresponding interoperation profile for different jurisdictions, and implements regional constraints on maximum brightness, refresh frequency, dynamic content category and interaction prompt rules. System supports end-to-end content integrity check: media segments carry sequence numbers and digests, and edge nodes and display controllers compare both ends and target retransmit missing segments.The protocol adaptation and abstraction layer provides codec pluggable interface, supports H.265 / AV1 / VP9 or its evolution variants, and triggers cloud / edge transcoding capability negotiation when codec capability is insufficient. The communication and interoperation gateway provides diagnostic service channel, supports UDS / DoIP or equivalent diagnostic protocol, reads and writes and remotely tests interoperation parameters, link health and error count. The cross-vehicle splicing area boundary of group cooperative playback adopts geometric calibration parameters and chrominance / luminance fusion parameters, and re-estimates and issues surface mapping when the vehicle relative attitude changes beyond the threshold. The security and scale module implements sandboxing isolation and permission minimization for third-party applications or content providers, and only allows calling interoperation APIs registered by whitelist. The quality and path management unit implements packet-level redundancy or network coding between multiple paths, and dynamically adjusts the redundancy according to path independence to minimize the overall packet loss rate. The communication and interoperation method further includes: S1) establishing a connection with at least one in-vehicle network link and at least one out-of-vehicle network link; S2) exchanging capability descriptions and selecting a target interoperation configuration file; S3) establishing a reference clock and aligning the playback timing to the reference clock; S4) performing integrity and source verification on received video content; S5) implementing admission or degradation at the security and scale module according to vehicle state, geographical and time domain, peer trustworthiness and content attribute; S6) adaptive bit rate / frame rate and retransmission scheduling under multiple path and bandwidth fluctuation conditions; S7) when the synchronization error, trustworthiness or security threshold is triggered, perform screen off, static frame or degradation mode, and record the verifiable log. S2 includes default selection process for unknown capability field, ignoring reservation and backward compatible. S3 includes redundancy switching between PTP and GNSS time keeping and lock loss conservative playback strategy. The group cooperative playback numbers and timestamps the content fragments of each vehicle, and completes master node reselection and recovers playback within a limited time after the master node fails. The non-transitory computer readable storage medium has instructions stored thereon, which, when executed by a processor, cause the device to perform the method steps described above. The electronic device includes a processor and a memory, and the memory has instructions stored therein, which, when executed by the processor, implement the method described above.

[0014] Further, the control system further comprises a video forensics and detectability system, comprising: A. a housing display module integrated or fixedly connected with the vehicle outer cover, configured to present dynamic images; B. a display controller in communication with the housing display module, configured to drive and time control at the pixel level; C. a forensic fingerprint generation unit configured to embed at least one externally detectable fingerprint into the time domain / frequency domain / space domain / color domain characteristics of the display output without affecting the quality of human eye perception and the safety threshold of regulations; D. a verifiable evidence packaging unit for generating an evidence package containing a timestamp, a geographic grid index, a content identifier, policy / version information and device identity proof, and signing and tamper-proof storage by trusted hardware; E. a challenge-response mutual authentication unit for interacting with road side units, law enforcement / detection terminals or cloud services to declare capabilities and one-time challenge, and complete on-site visual verification by responding with transient modulation or pattern of the fingerprint; F. a privacy and scale module for minimizing personal data output while completing verifiable records, implementing differential privacy / coarsening / anonymous processing on evidence packages and fingerprint parameters; G. a failure and security degradation unit for screen off / static frame / lower brightness when synchronization / trusted / compliant thresholds are triggered, and including the inhibition reason and related threshold into the evidence package to form a verifiable non-play proof; wherein the system is configured to continuously generate externally detectable forensic fingerprints and form a verifiable evidence chain under heterogeneous network conditions inside and outside the vehicle, so that the identity and behavior are verified by third parties with general sensors without accessing the vehicle internal bus. The externally detectable fingerprint includes at least one of: a) time domain micro-amplitude brightness jitter sequence; b) narrowband flicker spectrum cluster synthesized by multiple base frequencies; c) subtle disturbance of row / column level scanning phase or duty cycle; d) color domain rotation or micro-displacement sequence; e) low visibility alternation of spatial sparse pixel mask; f) measurable beat frequency / walk texture to rolling shutter camera. The fingerprint is driven by a pseudo-random sequence derived from a key, and the sequence seed is bound to the device certificate and the time window, supporting forward and backward non-inferable and anti-replay. The fingerprint modulation amplitude is limited below the perception threshold or within the flicker / spectrum radiation limit specified by regulations, and is adaptively adjusted when the ambient brightness / frame rate changes. The evidence package contains at least: device public key hash, certificate / CRL status, content ID or hash, policy and firmware version, timestamp, geographic grid index, threshold trigger reason code and signature; the evidence package is encoded in TLV / CBOR / JSON structure with chain hash to form a non-repudiable sequence. The challenge-response mutual authentication includes: the roadside or detection terminal sends a challenge with a random number / validity period, the vehicle modulates the fingerprint with the specified frequency group / phase / space template within the specified time slot and returns the response digest and signature, and the detection terminal judges by optical / spectrum measurement and signature verification. The time base of the forensic fingerprint and the evidence package is redundantly supplied by GNSS / IEEE 1588g PTP / local time keeping source; when the lock is lost, enter the conservative fingerprint and degraded evidence mode and record the deviation.The system supports cross-vehicle stitching forensics when displaying in groups / formation: each vehicle device aligns with the beat and segment number issued by the group master node, and superimposes stitching watermark and cross-vehicle consistency hash at the cross-vehicle boundary. The master node failure triggers decentralized election to ensure the continuity of the beat and stitching watermark within the specified time limit; the evidence package records the "master-backup switching event" during the interruption. The fingerprint includes a static component derived from the device-level PUF (Physical Unclonable Feature) and a dynamic component driven by the key, and the combination of static and dynamic components realizes traceability and in-service living dual judgment. The forensic fingerprint can be decoupled under different content types: when the content-side watermark is not available, it is still detected by the driving-level / timing-level fingerprint alone; when the content-side watermark is available, the two are implemented in cascade or staggered spread spectrum. Non-cooperative detection is supported: when the vehicle does not participate in the challenge, the detection end identifies the device and firmware version through rolling shutter shooting frequency, spectral line cluster position, line scanning harmonic or chroma phase drift. The evidence package is signed and securely counted by the on-board trusted execution environment / safe unit (TPM / HSM), supporting monotonic counters and key rotation / denunciation. Privacy and compliance blocks use geographic gridding / speed coarse, differential privacy noise or commitment-proof mechanisms, allowing third parties to verify whether the play / non-play policy is met without obtaining the original personal data. The system supports anchoring evidence to external timestamp services or on-chain anchors; when external connection fails, anchor requests are queued and kept traceable with chained hash. The fingerprint frequency group selection avoids the light bio-safety / induced flicker interval caused by modulation, and loads regional parameter tables in different jurisdictions to automatically adjust the threshold. The display controller keeps the fingerprint phase continuous or performs seamless phase retiming when switching code rate / frame rate to avoid detection window mismatch. The system generates verifiable "negative evidence" for non-play / downgrade scenarios, including trigger signal digest, threshold and decision path, to prove compliance suppression behavior. The fingerprint carrier can be extended to electromagnetic sub-carrier frequencies within the EM-compatible window or low-amplitude fingerprints in the audible / sub-audible shielding area, and its emission level is limited by hardware clipping and regulations. The system supports OTA updating fingerprint strategy, evidence structure and verification algorithm, using double-partition rollback and atomic switching, and the update process itself is included in the evidence chain. The evidence query interface provides selective disclosure and access control for time period / geographic grid / content ID / device ID, and external audits return with one-time credentials and minimal necessary fields. The detection end can use a single camera (≥30fps), photodiode array or spectrum analyzer to complete fast verification, and the system is designed to ensure that the specified detection confidence can be achieved with a general sensor. The fingerprint automatically switches to a more robust frequency group / phase / space sparsity configuration under rain, fog, strong light and night conditions, and records the environmental state in the evidence package. The system implements sandboxing and whitelist calling for third-party applications and content sources, and only enables / query fingerprint status through controlled APIs to prevent being bypassed or turned off. The evidence package supports double-end checking: roadside / cloud repeatedly calculates the content hash and segment number, and triggers re-observation and dispute resolution process when inconsistencies are found.Cross-vehicle consistency fingerprints in group scenarios contain hash of stitching boundary geometry and luma / chroma fusion parameters; re-estimation is forced and recorded when relative pose exceeds threshold. Feature fingerprint library matching apparatus is used in non-cooperative detection, library entries are maintained by EOL calibration / in-service observation with confidence interval. Evidence package can embed zero-knowledge proof or commitment-reveal mechanism, so that third party only verifies "whether compliant playback / whether execution of suppression", without exposing original state or precise position. Fingerprint sequence implements extended cycle or redundant retransmission when frame loss / bit rate reduction occurs, to ensure target detection rate within minimum observation time. System provides diagnostic / self-check interface, outputs detection SNR, false positive / negative rate, time base deviation and recent challenge record, for maintenance and legal inspection. Also includes forensics and detectable methods, including: S1) establish time base and initialize fingerprint key and policy; S2) embed externally detectable fingerprints in at least one domain (time / frequency / space / color) of video output; S3) generate evidence package containing device identity, time / geography, content identification and policy version and store with signature; S4) when receiving external challenge, modulate according to specified template / frequency group within limited time slot and return response digest; S5) when security / compliance threshold is triggered, perform screen off / static frame / brightness reduction and generate negative evidence; S6) implement selective disclosure or external anchoring of evidence package, and support subsequent dispute review. S2 includes control of observable shuttering frequency or perturbation of scanning phase to improve detectability in non-cooperative detection. S4 uses challenge with random number and validity period and combines with device certificate for signature, response is modulated with spread spectrum / phase / space template to achieve anti-replay. S3 implements grid / differential privacy noise and access control on evidence package fields to minimize personal data exposure. Also includes external detection end device, including imaging sensor or photodetector, processor and memory, the processor is configured to: collect vehicle shell display output; search for preconfigured fingerprints in frequency / time / space domain; time slot and phase determine challenge-response; and verify and compare consistency of evidence package signature. Also includes production end / laboratory verification fixture for vehicle shell display screen forensic fingerprint and evidence chain, including pattern generator, clock reference and measurement unit, the fixture is used to measure detection SNR, false positive / negative rate and time base deviation in EOL / type test, and outputs pass / fail conclusion and traceability record. Also includes non-transitory computer readable storage medium having instructions stored thereon, the instructions are executed by processor to implement any of the above methods. Also includes electronic device, including processor and memory, the memory has instructions stored therein, the instructions are executed by the processor to implement the above methods.

[0015] Further, the control system further comprises a video presentation calibration, end-of-line (EOL), in-service self-test and diagnostic system, comprising: A. a housing display module integrated with or fixed to a vehicle exterior cover; B. a display controller for performing pixel / row-column level driving and timing control of the housing display module; C. a calibration and compensation unit configured to establish display surface geometry mapping, luminance / chromaticity / gamma / gamma / uniformity parameters and seam blending parameters, and form a deliverable and protected calibration package; D. an EOL test and acceptance unit configured to perform optical / geometry / electrical tests on the housing display module and generate qualification evidence accordingly; E. an in-service self-test and health assessment unit configured to trigger / perform self-tests in a manner that does not interfere with driving safety and is not significantly visible during vehicle operation life cycle, update health indicators and selectively refresh compensation parameters; F. a diagnostic and interface unit configured to read / write calibration packages, trigger self-test modes, export logs and threshold events through in-vehicle / out-of-vehicle diagnostic links; G. a security and version control unit configured to implement signature, version binding, monotonic counting and rollback protection on calibration packages, EOL results and in-service logs; wherein the system is configured to complete initial calibration and generate calibration packages at the manufacturing end, perform self-test / re-calibration and diagnostics periodically or on-demand during delivery and in-service stages, and trigger degraded presentation or screen-off under abnormal or out-of-bound conditions. The calibration package contains at least: a) surface geometry mapping (UV→3D curved surface mesh / polynomials / splines / grid LUT); b) luminance uniformity and chromaticity correction LUT; c) gamma / white point / peak luminance / minimal luminous threshold; d) seam (stitch) blending parameters and edge feathering curves; e) row-column defect / bad pixel map and bypass remapping table; f) environmental compensation coefficients (temperature / humidity / aging / supply voltage / sunlight). The calibration package is bidirectionally bound with device identity, firmware version and geographical / usage region policy, and implemented with chain hash and signature to be non-repudiable. The EOL test and acceptance unit includes: photometric and colorimetric measurement, uniformity / mura / mura indicators, geometric distortion / mapping residual, seam blending error, flicker / spectrum and EMC auxiliary measurement, peak and sustained luminance maintenance, hot spot and thermal drift curve. The in-service self-test and health assessment unit includes a combination of low-visibility test patterns and time-domain perturbations, ensuring separation from human eye / camera and no interference with driving. The system automatically enters self-test under the condition that the vehicle state meets the static / idling / low-speed and no traffic risk, or is executed during low-risk periods such as night / garage. The self-test adopts at least one of the two routes of built-in optical feedback and external angle observation: a) built-in photoelectric sensor / micro-lens array / edge reflectometer; b) external observation using vehicle-mounted camera / mobile phone / external detection end. The diagnostic and interface unit supports UDS / DoIP, SOME / IP, Ethernet diagnosis or its equivalent protocol, and provides controlled services to trigger patterns, read counters and export logs.The security and version control unit maintains a monotonic counter with HSM / TPM to prevent old calibration package rollback or illegal replacement. Geometric mapping calibration uses coded targets / checkerboard / lattice and multi-view cameras for solving, or equivalent methods using structured light / raster projection. Gap fusion parameters include brightness / color balance, feathering width, phase and contrast compensation, and automatic re-estimation when body deformation / temperature drift exceeds threshold. Environmental compensation is based on temperature / humidity / power supply / sunlight / vehicle speed / vibration and other sensor data to achieve real-time correction through piecewise linear / polynomials or small neural networks. Self-check detects scan timing / TE (tearing) / frame loss / row-column jitter and records out-of-sync events and probabilities, and degrades to static frames or screen off when thresholds are exceeded. Bad pixels and row-column defects are repaired using neighborhood remapping / sub-pixel level bypass / content adaptive masking, and maintenance is prompted when repair rate exceeds threshold. When group / formation splicing, each vehicle performs cross-vehicle alignment and cross-vehicle fusion recheck by sharing the beat and segment number, and issues a cross-vehicle consistency report. EOL and in-service results form a health classification (e.g. A / B / C) and remaining life estimate for after-sales strategy and content playback upper limit constraints. The system generates a negative evidence log for "not played / downgraded playback", including trigger signal summary, threshold, decision path and time base, for compliance audit. A fast sampling mode is provided: using rolling shutter observable shot frequency or narrowband flicker as an externally detectable fingerprint, without accessing the vehicle bus to determine eligibility. The calibration package supports differentiated regional parameters, automatically loading regional restrictions on maximum brightness / frequency / content categories based on different jurisdictions. The diagnostic and interface unit provides two levels of permission, read-only minimum set and controlled write, and supports one-time credentials and access audit. The calibration package and logs can be updated OTA, using dual-partition atomic switching and failure rollback, and the update process itself is recorded into the evidence chain. The self-check pattern can include: gray scale ladder / checkerboard / uniform field / edge enhancement / pseudo-random noise / color block array / flickering frequency group, and combinations thereof. The system records detection SNR, false positive / negative rate, temperature drift coefficient, power supply margin, brightness maintenance rate, etc. and forms a trend curve. The content playback and self-check test channels are logically isolated, even if the application layer closes the test rendering, the driver layer can still inject perturbations in a controlled window. Geometric mapping can perform local recalibration after panel replacement / local repair and seamlessly splice with global mapping. The system adaptively selects the test frequency group and pattern that is more reliable for external observation in rain, fog, backlight, night, etc. EOL testing includes sealing and moisture ingress sensing, using edge moisture sensitive sensors / pressure decay / capacitance change to determine leakage and establish thresholds. Self-check prioritizes control / diagnostic signaling under insufficient bandwidth or high packet loss conditions, delaying non-critical media data. The system supports remote attestation: output signature attestation of calibration version, health rating and security status for cloud / sidewalk / third party verification. The diagnostic process supports dispute review: allows two observations and recalculation for the same time window, and freezes related parameters and prompts recheck when inconsistent.Also included are calibration / EOL / in-service self-checking / diagnostic methods, comprising: S1) establishing geometric mapping and photometric / chromatic / slit fusion parameters at manufacturing end and generating protected calibration package; S2) performing EOL multi-item tests and outputting qualification evidence and health initial values; S3) triggering low-visibility self-checking at in-service stage according to vehicle and environment states, updating health indicators and necessary compensation; S4) performing degradation presentation or screen-off and generating negative evidence when parameters go out of bounds or synchronous / trustworthy / safe thresholds are triggered; S5) exporting logs / versions and trends or triggering recalibration and dispute review through diagnostic interface under controlled authority. S1 employs multi-view cameras / structured light / encoded targets to solve curved surface mapping and lands in grid LUTs / polynomial splines. S3 implements external rapid spot-checking through rolling shutter capture frequency or narrowband flickering, without accessing in-vehicle bus. S4 contains bypass remapping for bad pixels / row-column defects and online fine-tuning for slit fusion parameters. Also included are fixtures for housing display screen calibration and EOL testing, comprising: adjustable pose target platform, standard light source / optical measurement unit, structured light / camera array, time base and controller configured to output test patterns, capture and compute mapping and photometric / chromatic / slit fusion parameters, generate calibration package and qualification evidence. Also included are in-service spot-checking devices, comprising imaging sensors or photodetectors, processors and memories, the processors configured to: capture test patterns or perturbation signals, compute geometric and photometric errors, read signature logs and output qualified / unqualified conclusions and confidence. Also included are non-transitory computer-readable storage media having instructions stored thereon that, when executed by a processor, implement the method steps described above. Also included are electronic devices, comprising processors and memories, the memories having instructions stored therein that, when executed by the processors, implement the methods described above.

[0016] Further, the display module further comprises a multi-panel splicing calibration device for large-size display screens of car shells, comprising: at least two display screen panels integrated into the car body shell; a splicing seam pixel alignment calibration module for detecting and calibrating the physical positions of pixels of each panel at the splicing seam to eliminate the screen door effect and pixel misalignment; a color and brightness correction module for dynamically adjusting the color and brightness parameters between each splicing panel to realize seamless transition and consistent display of the picture; a splicing picture synchronization processing module for timing and content synchronization processing of picture signals between multiple panels to ensure no error frame and no picture tearing at the splicing joint; and a controller electrically connected with the modules for realizing cooperative control and adaptive adjustment of the modules. The pixel alignment calibration module comprises an automatic measurement system based on a camera array, an optical sensor or an electrical signal detection for real-time detection and correction of pixel position offset at the splicing seam. The color and brightness correction module comprises but is not limited to an automatic feedback system based on a color sensor and a brightness sensor, and combines with a software algorithm to realize dynamic color temperature and brightness uniformity compensation. The picture synchronization processing module realizes seamless synchronization output of the splicing picture through frame buffer, multi-channel signal synchronization and delay correction algorithm. The controller has a self-learning or adaptive correction function, which can periodically / real-time update the calibration parameters of each splicing panel according to environmental light, screen aging, temperature change and other factors. Each module supports software, hardware or a combination of software and hardware implementation, and includes the adaptation capability to existing and future mainstream display screen technologies. The system further comprises a micro-shading sheet or an optical diffusion film for splicing seam shielding and structure compensation to further reduce the visibility of the splicing seam. The calibration, compensation and synchronization processing not only support initial calibration in the production and assembly stage, but also support online dynamic self-calibration in the whole life cycle. The calibration parameters can be updated by OTA remote upgrade, cloud algorithm optimization or local manual intervention and other ways.

[0017] The further display module further comprises an appearance consistent splicing structure for a car shell display screen, comprising: at least one display screen integrated with a vehicle body; a vehicle body panel connected with the periphery of the display screen, which is made of metal or plastic; a splicing transition structure arranged between the display screen and the vehicle body panel, used for eliminating visual gaps, color differences and light reflection mismatches; wherein the splicing transition structure comprises at least one of the following: an optical transition layer for controlling the reflectivity, light transmittance and refractive index of the splicing gap to be consistent with the adjacent panel or display screen; a flexible filling structure for relieving the difference in material hardness and providing gap hiding; a surface microstructure treatment layer for polishing the light reflection interface or realizing the effect of diffuse reflection; a color harmonization coating or dynamic color adjusting material for realizing visual color consistency. The optical transition layer is a multi-layer coating layer or a nano-structured film layer, and its reflectivity matches the edge of the display screen within ±5%. The flexible filling structure is weather-resistant silicone, TPU or elastic coating, which has the functions of flexible bonding, sealing and waterproofing, and hides the physical structure of the joint. The surface microstructure treatment layer includes micron-level rough texture, micro-prism array or matte coating, which is used to suppress the specular reflection at the splicing gap. The color harmonization coating dynamically adjusts the color through light-sensitive color-changing paint, electronic ink or thermochromic material, which is consistent with the display color of the display screen. The splicing structure has a dynamic self-correcting function, which adjusts the brightness, color, light reflection and the like at the splicing gap in real time based on the ambient light, display content or vehicle state. The splicing structure adopts seamless design, so that the splicing gap is less than 0.3mm, and has a high-precision positioning and pressing mechanism, which improves the overall integration level. The edge area of the display screen adopts a flexible edge structure, which matches the transition curved surface of the vehicle body, realizes natural visual transition and has no abruptness. The structure further comprises a high-weather-resistant transparent protective layer covering the splicing gap and having the functions of hydrophobicity, anti-fouling, anti-scratching and anti-ultraviolet.

[0018] Further, the control system further comprises a video playback control and algorithm system, comprising: A. a housing display module integrated with or fixedly connected to the vehicle outer cover, configured to present dynamic images; B. a display controller configured to drive and control the timing of the housing display module at the pixel / row-column level; C. a control and algorithm engine coupled to the display controller, adopting a layered architecture and comprising at least: C1. a strategy layer configured to generate a set of playback permissions and constraints based on vehicle state, geographical and time domain, ambient light / weather, compliance strategy and content attributes; C2. a scheduling layer configured to optimize scheduling of content sources, code rate / frame rate, timing, brightness and chrominance under the premise of meeting the set of constraints; C3. a rendering layer configured to perform image stabilization / desmearing, geometric mapping, gap fusion and gamma / evenness compensation based on the scheduling results and output frames; D. a compliance and safety gate configured to be a mandatory gate between the strategy layer and the scheduling / rendering layer, configured to perform degraded playback, static frames or screen off when the constraints are triggered, and form a verifiable decision log; E. a time base synchronization unit configured to align the playback pipeline to a reference clock and maintain a predetermined synchronization accuracy; F. a quality adaptive unit configured to adaptively select code rate / resolution / frame rate and buffer strategy according to link bandwidth / delay / packet loss and computational load; G. an image stabilization and anti-disturbance unit configured to maintain picture stability or controlled instability under vehicle vibration / impact / rough conditions; wherein the system is configured to achieve a compliant and controllable, timing consistent, and optimal perceptual quality under disturbance conditions for the controlled presentation of video content on the housing display without modifying other electronic and electrical architectures of the vehicle. The strategy layer completes the playback permission determination based on a minimum sufficient data set, which is composed of a coarse geographical grid, a speed / acceleration interval, an ambient brightness level, and a peer trustworthiness summary, avoiding the use of raw personal data. The strategy layer encodes the regulations / safety constraints into a joint time-space-frequency constraint set, including at least: maximum brightness, dynamic energy density (time-varying brightness / chrominance change energy per unit area), allowed content categories and interaction prompt requirements. The scheduling layer converts the playback decision into a multi-objective optimization: minimizing the probability of losing synchronization / tearing and the risk of compliance, maximizing perceptual quality and energy efficiency under the premise of meeting the constraint set, and solving by dynamic programming / convex optimization / MPC / heuristic or their combination. The rendering layer includes motion estimation and stabilization, fuses IMU / vehicle speed / suspension signals and inter-frame vectors, outputs global or local stabilized frames, and switches to a steady-state static frame when the stabilization cost exceeds the threshold. The quality adaptive unit supports adaptive bit rate and frame rate (ABR / AFR), and performs timestamp alignment and phase smoothing on switching events to avoid flickering and tearing. The time base synchronization unit supports GNSS timekeeping, IEEE 1588g PTP, or a local disciplined oscillation source, enters a conservative timing when it loses synchronization, and limits cross-vehicle splicing. The compliance and safety gate implements three levels of enforcement on the application layer, the driver layer, and the hardware layer: application layer API white list; driver layer brightness / frequency domain rate limit; hardware layer current / duty cycle limit and hard screen off channel.The system calculates dynamic energy density indicators, instantaneous contrast, and flicker index, and reduces local contrast / frame rate or replaces it with low motion energy material when thresholds are exceeded. The rendering layer performs border feathering + chrominance / luminance matching when geometry mapping and seam fusion, and triggers online re-estimation when relative vehicle body pose changes exceed thresholds. The control and algorithm engine gives the highest superposition priority to the safety prompt overlay layer, and cannot be obscured or turned off by the application layer under any circumstances. The system supports cross-vehicle cooperative playback: member vehicles align by sharing the beat and segment number, the scheduling layer performs cropping and phase locking on each vehicle's viewport, and the gate locally freezes when out of sync and preserves the continuity of other areas. The main node failure triggers a decentralized election, and the master-slave switchover is completed within a limited time and maintains the consistency constraint of the stitching boundary. The system automatically limits the dynamic content level or switches to a high-visibility prompt template in high-risk areas or working conditions (intersections, schools, accident sites, low visibility). The control and algorithm engine can use one or a combination of rule-based, model-based, and learning-based methods: including but not limited to finite state machines, MPC, reinforcement learning policy networks, or small neural networks; learning-based strategies must be subject to hard constraint shells and safety monitors. The system performs confidence assessment and anomaly detection (chi-square / Mahalanobis distance / time-based prediction error) on input signals, and falls back to a conservative strategy when confidence is insufficient. The image / video pipeline uses an environment-adaptive curve to correct gamma / white point / saturation under low / high temperature / solar direct radiation / rain and fog conditions. The system performs signature / hash verification on content sources and versions, and performs screen-off or freeze when the source is unverifiable or decryption fails. The quality adaptive unit prioritizes compliance and safety prompt channels when bandwidth is insufficient, delaying or suppressing non-critical media data. The system avoids or phase-manages the beat frequency visible to rolling shutter devices to avoid false positives or visual discomfort caused by appearance recording. The image stabilization and anti-disturbance unit supports motion compensation interpolation / de-jitter filtering, and phase suppression when vehicle excitation spectrum and display refresh interact. The compliance and safety gate generates negative evidence log records of "not played / demoted playing" trigger reasons, thresholds, and decision paths for auditing and evidence. The system provides a shadow simulation channel: without actually displaying, it runs a quick compliance evaluation on candidate content, and switches online after passing the evaluation. The policy layer loads regionalized parameter tables, and the maximum brightness / frame rate / content category limits of different jurisdictions automatically take effect. The control and algorithm engine supports local regionalization control, and uses more stringent dynamic energy and brightness thresholds for screen areas close to the driver's field of view or specific dangerous positions. Bad pixels / row and column defects are remapped using neighborhood remapping and content adaptive masking, and forced into a degraded template when the defect rate exceeds the threshold. The spectral leakage of timing and brightness modulation is limited to a set window, and the PWM duty cycle is reduced or DC dimming is switched when the leakage exceeds the threshold. The system throttles / quota and priority shaping for application layer requests to avoid flicker or compliance risks caused by frequent switching. Compliance policies and parameters are protected by a security unit (TPM / HSM), and support monotonic counters and policy rollback protection.The control and algorithm engine optimizes the power / thermal budget and brightness quota of each vehicle in a group advertisement / formation splicing scene, avoiding local overheating or glare. It also includes a playback control and algorithm method, including: S1) collecting vehicle status, geographical and time domain, environmental light / weather and content attributes, and generating a set of playback constraints; S2) jointly optimizing and scheduling content sources, code rate / frame rate, buffer, and brightness / chromaticity under the constraint set; S3) establishing a reference clock and performing time-based alignment on the playback pipeline; S4) performing image stabilization / desmearing, geometric mapping, gap fusion, and gamma / evenness compensation to obtain output frames; S5) when a safety / compliance threshold or insufficient confidence is triggered, performing degraded playback, static frames, or screen off, and recording verifiable logs; S6) when the bandwidth / computational resource changes, performing adaptive code rate / frame rate and smooth switching; S7) in a cross-vehicle coordination scenario, performing beat alignment, viewport cropping, and boundary consistency constraints. S2 uses MPC / convex optimization / heuristic or deep policy network to solve, with dynamic energy density and flicker index as constraints, and the output of the strategy is clipped in real time by a hard constraint monitor. S4 estimates the image stabilization field by fusing IMU and inter-frame motion vectors, and switches to a steady-state static frame or low-motion content template during periods of high vibration. S5 outputs negative evidence logs and stores them in a chain hash with a timestamp. It also includes a non-transitory computer-readable storage medium having instructions stored thereon, which, when executed by a processor, cause a device to perform the method steps described above. It also includes an electronic device comprising a processor and a memory, wherein the memory stores instructions that, when executed by the processor, implement the method described above.

[0019] Further, the display module is a multi-layer composite structure, including at least one light-emitting substrate, an adhesive layer, an optical layer, and a protective cover plate; in the multi-layer composite structure, the linear thermal expansion coefficients of each layer of material are synergistically optimized, so that the CTE difference between any two adjacent layers is ≤5×10 -6 / ℃, to reduce the interfacial thermal stress concentration under high temperature or temperature change conditions, prevent delamination, liquid crystal layer leakage, or pixel failure; the adhesive layer uses optical adhesive with low modulus, high elasticity, and high temperature resistance, and the adhesive strength of the optical adhesive with the light-emitting substrate and the protective cover plate does not significantly shrink, flow, crack, or delaminate in the full temperature range of -40℃+100℃; a thermal stress relief layer is provided between the display screen body and the vehicle body, which is an elastic gasket, a soft cushioning material, or a structured thermal expansion absorption component, which can absorb the relative displacement between the screen and the vehicle body due to thermal expansion and contraction differences, preventing interface warping, peeling, or internal cracking.

[0020] Further, the display module is a multi-layer composite structure, including at least one light-emitting substrate, an adhesive layer, an optical layer, and a protective cover plate; in the multi-layer composite structure, the linear thermal expansion coefficients of each layer of material are synergistically optimized, so that the CTE difference between any two adjacent layers is ≤5×10 -6 / ℃, to reduce the interfacial thermal stress concentration under high temperature or temperature change conditions, prevent delamination, liquid crystal layer leakage, or pixel failure; the adhesive layer uses optical adhesive with low modulus, high elasticity, and high temperature resistance, and the adhesive strength of the optical adhesive with the light-emitting substrate and the protective cover plate does not significantly shrink, flow, crack, or delaminate in the full temperature range of -40℃+100℃; a thermal stress relief layer is provided between the display screen body and the vehicle body, which is an elastic gasket, a soft cushioning material, or a structured thermal expansion absorption component, which can absorb the relative displacement between the screen and the vehicle body due to thermal expansion and contraction differences, preventing interface warping, peeling, or internal cracking.

[0021] The anti-vibration fatigue protection structure comprises an elastic buffer layer, a flexible stress release design and a multi-point redundant connection, the elastic buffer layer is arranged between the solder joint and the display substrate and the flexible flat cable, effectively absorbs vibration energy in the range of 1-2000 Hz during driving, and slows down stress accumulation at the connection point;

[0022] A flexible solder, a stepped pad or a flexible transition FPC structure is used at the connection point to improve the anti-vibration fatigue life of the solder joint and the wire interface, prevent metal fatigue and micro-crack propagation;

[0023] The interface of the adhesive layer uses a high-elasticity fatigue-resistant adhesive material, and the interface strain limit is not less than 5%, so that delamination and brittle cracking are prevented under continuous vibration;

[0024] The device also integrates a connection health active monitoring unit, which detects the health status of each connection point in real time through impedance, resistance, stress or acoustic signals, actively alarms when hidden dangers such as poor contact and micro-crack propagation are detected, and can enter a protection mode in advance to avoid display faults.

[0025] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0026] 1. The vehicle structure effectively solves the stress concentration problem of the traditional device when the device is attached to a complex curved surface of a vehicle by arranging a stress dispersion layer and a planar or curved self-adaptive support structure, improves the structural stability of the device under driving vibration, temperature change or external impact, ensures that the display module does not delaminate, deform or crack, and prolongs the service life of the device.

[0027] 2. The vehicle structure, with the help of the image distortion correction function of the control system and the multi-layer composite structure of the display module, the thermal stress release layer and the anti-vibration fatigue protection structure, ensures that the display content has normal visual effect on the curved surface of the vehicle body without significant deformation, and improves the temperature change resistance and anti-vibration fatigue performance of the device, meeting the needs of long-term outdoor use of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of the structure of the vehicle structure of the present application.

[0029] In the figure: 1, display module; 2, control system; 3, stress dispersion layer; 4, planar or curved self-adaptive support structure; 5, thermal stress release layer. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0031] Please refer to Figure 1 The vehicle structure in the embodiment includes a display module 1 (not including a center console, a seat back, a vehicle cabin, a rear row of televisions, a vehicle roof advertisement screen, and a vehicle sticker soft screen) and a control system 2, wherein the display module 1 is a plane, a curved surface, or a high-flexibility display screen body that can be attached to a complex three-dimensional surface of a vehicle shell, and the display screen body is composed of multiple layers of plane, curved surface, or flexible composite structures.

[0032] A stress dispersion layer 3 and a plane or curved surface adaptive support structure 4 are arranged between the display screen body and the vehicle body, the stress dispersion layer 3 is made of a high-elasticity polymer, a buffer gel, or a micro-structure buffer pad, and can uniformly conduct and disperse bending stress and impact stress when the display screen body is attached or subjected to external force, so as to avoid stress concentration in a single bending or edge part and improve bending resistance.

[0033] The plane or curved surface adaptive support structure 4 is a three-dimensional adjustable support grid or a partitioned independent buffer support, which can automatically adjust the support height and pressure according to the local curvature change of the vehicle body, realize high-precision attachment to a complex surface, and keep the structure intact, without delamination, deformation, or fragmentation under driving vibration, temperature change, or external impact.

[0034] The control system 2 can correct the distorted display content and output the corrected display content to the vehicle body curved surface display screen body for display, so as to form a continuous and smooth transition of the visual content of the vehicle body curved surface display screen body and the plane display screen body, and ensure that the visual effect of the display content on the whole vehicle body is normal and without significant deformation.

[0035] In actual application, the vehicle structure realizes stable work in a complex environment of a vehicle shell through the cooperative matching of various structures; the display module 1 adopts a plane, a curved surface, or a high-flexibility display screen body that can be attached to a complex three-dimensional surface of a vehicle shell, and the multiple-layer composite structure thereof includes a light-emitting substrate, a glue layer, an optical layer, and a protective cover plate, the linear thermal expansion coefficients CTE of the materials of the layers are cooperatively optimized, the CTE difference between any two adjacent layers is ≤5×10 -6The design effectively reduces the interface thermal stress concentration under high temperature or temperature change conditions, and fundamentally reduces the possibility of delamination, liquid crystal layer leakage or pixel failure; the adhesive layer is selected from an optical adhesive with low modulus, high elasticity and high temperature resistance ≥100℃, to ensure that the bonding strength of the adhesive layer with the light-emitting substrate and the protective cover does not significantly shrink, flow, crack or delaminate in the full temperature range of-40℃ to +100℃, thereby further improving the stability of the display module 1.

[0036] The stress dispersion layer 3 arranged between the display screen body and the vehicle body is made of high-elasticity polymer, buffer gel or micro-structure buffer pad, etc. When the display screen body is attached to the vehicle body or subjected to external impact, the stress dispersion layer 3 can uniformly conduct and disperse the bending stress and impact stress, avoiding stress concentration in a single bending or edge position, thereby significantly improving the bending resistance of the display module 1; the planar or curved self-adaptive support structure 4 is a three-dimensional adjustable support grid or a partitioned independent buffer support, which can automatically adjust the support height and pressure according to the local curvature change of the vehicle body, thereby not only realizing high-precision attachment of the display module 1 to a complex surface, but also providing stable support for the display module 1 when the vehicle is running, temperature changes or external impact, thereby ensuring the structural integrity, delamination, deformation and fragmentation of the display module 1.

[0037] The thermal stress relief layer 5 is arranged between the display screen body and the vehicle body, and is made of an elastic gasket, a soft buffer material or a structured thermal expansion absorption component, which can absorb the relative displacement between the screen and the vehicle body due to thermal expansion and contraction difference, effectively preventing interface warping, peeling or internal cracking, and cooperating with the multi-layer composite structure of the display module 1 to comprehensively address the problems caused by thermal stress.

[0038] The anti-vibration fatigue protection structure of the internal connection points of the display module 1 plays an important role, the elastic buffer layer is arranged between the welding points and the display substrate and the wire, which can effectively absorb the vibration energy in the range of 1-2000 Hz during driving, and slow down the stress accumulation at the connection points; the flexible solder such as silver, indium and other alloy elements, stepped pads or flexible transition FPC structure is used at the connection points, which improves the anti-vibration fatigue life of the welding points and wire interfaces, prevents metal fatigue and micro-crack propagation; the high-elasticity fatigue-resistant adhesive material is used at the adhesive interface, and the interface strain limit is not less than 5%, which ensures that there is no delamination and brittle cracking under continuous vibration; at the same time, the integrated connection health active monitoring unit detects the health status of each connection point in real time through impedance, resistance, stress or acoustic signals, actively alarms when hidden troubles such as poor contact and micro-crack propagation are detected, and can enter a protection mode in advance to avoid display faults, and the anti-vibration fatigue protection structure cooperates to ensure the long-term stable operation of the display module 1.

[0039] The control system 2 obtains the curvature information of the display screen installed on the curved surface of the vehicle shell in the three-dimensional space through the hardware interface, converts the original video signal into the image frame to be mapped, constructs the curved surface coordinate mapping model based on the curvature information, and then uses the B-spline curved surface fitting, Bezier curved surface fitting or bilinear interpolation algorithm to perform image distortion correction processing on the image frame to be mapped, to generate the image frame after distortion correction and output to the vehicle body display screen body, so that the visual content of the vehicle body curved surface display screen body and the plane display screen body forms a continuous and smooth transition, solving the image distortion problem when the curved surface is displayed.

[0040] In summary, the vehicle structure effectively solves the stress concentration problem of the traditional device when the vehicle is fitted with a complex curved surface by setting the stress dispersion layer 3 and the plane or curved surface adaptive support structure 4, improves the structural stability of the device under driving vibration, temperature change or external impact, ensures that the display module 1 does not delaminate, deform or break, and prolongs the service life of the device.

[0041] Further, with the image distortion correction function of the control system 2, and the multi-layer composite structure of the display module 1, the thermal stress relief layer 5 and the anti-vibration fatigue protection structure, the visual effect of the display content on the curved surface of the vehicle body is normal and there is no significant deformation, while the temperature change resistance, anti-vibration fatigue performance of the device is improved, meeting the needs of long-term outdoor use of the vehicle.

[0042] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0043] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vehicle structure, characterized in that: The vehicle comprises a display module (1) (excluding a center console, seat backs, a compartment, a rear color TV, a roof advertising screen, and a car sticker soft screen) and a control system (2), wherein the display module (1) comprises: A) a display unit, which in a bent state can present an image outside the vehicle; B) a laminated layer disposed between the display unit and the vehicle body outer covering / carrier, the laminate comprising at least a stress equalization layer and an adhesive layer; C) a support structure connected to the vehicle body, said support structure providing positioning and restraint for the display unit under vehicle operation and temperature cycling conditions; in: a) the equivalent in-plane shear modulus and thickness of the stress equalization layer are configured to spatially redistribute the maximum principal stress and / or strain energy density caused by curvature and thermal expansion mismatch between the display unit and the vehicle body to below a predetermined threshold under vehicle thermal cycling, vibration, and shock conditions; b) The support structure includes at least one constraint-release pair: a first constraint point provides reference positioning for the display unit and the vehicle body, and at least one second constraint point allows relative slippage / elastic displacement to compensate for dimensional changes caused by curvature and temperature differences, thereby suppressing stress concentration and cracking / delamination. The control system (2) can correct the distorted display content and output it to the vehicle body curved display screen for display, so that the visual content of the vehicle body curved display screen and the flat display screen form a continuous and smooth transition, ensuring that the visual effect of the display content on the entire vehicle body is normal and without significant deformation.

2. A vehicle structure according to claim 1, characterized in that: The control system (2) can obtain the curvature information of the display screen installed on the curved surface of the vehicle shell in three-dimensional space through a hardware interface; convert the original video signal into an image frame to be mapped; and construct a surface coordinate mapping model based on the curvature information, and then use B-spline surface fitting, Bezier surface fitting or bilinear interpolation algorithm to perform image distortion correction processing on the image frame to be mapped based on the mapping model to generate a distortion-corrected image frame; finally, output the distortion-corrected image frame to the vehicle body display screen for display, so as to ensure that the visual effect of the display content on the vehicle body curved surface is normal and there is no significant deformation.

3. The vehicle structure according to claim 1, characterized in that: The internal connection points of the display module (1) (including but not limited to FPC cable soldering points, metal wire interfaces, and adhesive layer interfaces) are all provided with anti-vibration fatigue protection structures; The anti-vibration fatigue protection structure includes an elastic buffer layer, a flexible stress relief design, and multiple redundant connections. The elastic buffer layer is set between the solder joints and the display substrate to effectively absorb vibration energy in the range of 1 to 2000 Hz during driving, reducing stress accumulation at the connection points. Use flexible solder (such as adding alloy elements such as silver and indium), stepped pads or flexible transition FPC structures at the connection points to improve the vibration fatigue life of the solder joints and wire interfaces and prevent metal fatigue and microcrack propagation; The adhesive layer interface adopts high elasticity and fatigue resistance adhesive material, and the interface strain limit is not less than 5%, ensuring that there is no delamination or brittle cracking under continuous vibration; The device also integrates an active connection health monitoring unit, which detects the health status of each connection point in real time through impedance, resistance, stress or acoustic signals, and actively alarms when hidden dangers such as poor contact and microcrack expansion are detected. It can also enter protection mode in advance to avoid displaying faults.

4. A vehicle structure according to claim 1, characterized in that The display module further includes: The joint pixel alignment calibration module is used to detect and calibrate the physical position of the pixels of the panels at the joints to eliminate the screen door effect and pixel misalignment; Color and brightness correction module, used to dynamically adjust the color and brightness parameters between splicing panels to achieve seamless transition and consistent display; The splicing image synchronization processing module is used to synchronize the timing and content of the image signals between multiple panels to ensure that there are no wrong frames or image tearing at the splicing points; The controller is electrically connected to the modules and is used to realize the coordinated control and adaptive adjustment of the modules.

5. A vehicle structure according to claim 1, characterized in that The display module further includes: A) a display unit located on the exterior surface of the vehicle; B) A structural load-bearing subsystem connecting the display unit to the vehicle body load-bearing components, forming part of the vehicle exterior and bearing external loads under driving, vibration, temperature cycling, and collision conditions; C) a physical interface subsystem providing power and data to the display unit, including at least a power interface and a data / control interface; D) The environmental and electrical safety subsystem is located between the display unit, the structural support subsystem, and the physical interface subsystem, and is used to achieve sealing, waterproofing, dustproofing, thermal management, and electromagnetic compatibility / static protection; in: a) The structural load-bearing subsystem is configured to divert out-of-plane impact, in-plane tension, compression, and bending-torsion loads to the vehicle body reference structure, while allowing the display unit to produce controlled micro-displacement / slip relative to the vehicle body to compensate for thermal expansion and curvature mismatch, thereby controlling the maximum principal stress and interface delamination energy below target thresholds; b) The physical interface subsystem maintains reliable mating and polarity / type error prevention in live and splash / rain / wash environments, and suppresses electromagnetic interference to the vehicle system and surrounding traffic participants through shielding / grounding paths; c) In the event of an abnormality (mechanical tripping, water ingress, overtemperature, short circuit), the component enters a safe and established state, including at least one of power limiting, power disconnection, and mechanical anti-fall restraint.

6. A vehicle structure according to claim 1, characterized in that The display module manufacturing method is as follows: a) Surface activation, primer coating, and preforming of the display unit and the carrier are performed, and lamination and segmented / gradient curing are completed under vacuum / negative pressure conditions; b) Complete the assembly using 3-2-1 positioning and configuring at least one degree of freedom release, connect the sealed wall interface and implement harness stress relief; c) Collect standard patterns and sensor data, perform brightness / chromaticity / uniformity / seam and timing synchronization calibration, and generate a calibration data packet bound to the component's unique identifier; d) Carry out environmental / optical / electrical / EMC and sealing inspections, and if any failure occurs, enter the safety established state and return for repair; e) Integrity-protected storage of key parameters, decision factors, and execution traces and generation of compliance reports.

7. A vehicle structure according to claim 1, characterized in that The display module further includes: A. Housing display module, integral with or fixedly connected to the vehicle exterior, for displaying dynamic images; B. a display controller, configured to perform pixel-level driving and timing control on the housing display module; C. A communication and interoperability gateway, coupling the display controller with at least two types of communication links, the communication links including: C1. In-vehicle network link for data exchange with other vehicle electronic and electrical systems; and C2. Off-vehicle network link, used for data exchange with remote servers, roadside units, or other vehicles; D. Protocol adaptation and abstraction layer, provided in the communication and interoperability gateway, for mapping multiple heterogeneous protocols to a unified standardized message model; E. Capability and version negotiation unit, used to exchange capability descriptions and select compatible interoperability profiles when establishing a connection with the peer; F. Time base synchronization unit, used to align the display playback timing to the reference clock and maintain the established synchronization accuracy; G. Security and compliance module, located at the mandatory gate between the data plane and the control plane, is used to admit, degrade, or suppress display behaviors based on vehicle status, geographic and temporal domains, peer trustworthiness, and content attributes; H. Quality and path management unit, used for multi-path aggregation, congestion control, and adaptive bitrate / frame rate switching under conditions of multi-link concurrency, bandwidth / latency variations, or packet loss; Among them, the system is configured to achieve interoperability of multiple communication protocols and versions through the protocol adaptation and abstraction layer without changing other electronic and electrical architectures of the vehicle, and select the target interoperability profile driven by the capability and version negotiation unit to complete the reliable reception, integrity verification, timing alignment and controlled presentation of video content.

8. A vehicle structure according to claim 1, characterized in that The control system further comprises: A display controller, communicating with the housing display module, for pixel-level driving and timing control; B. a forensic fingerprint generation unit, configured to embed at least one externally detectable fingerprint into the time domain / frequency domain / spatial domain / color domain characteristics of the display output without affecting the quality of human eye perception and regulatory safety thresholds; C. Verifiable evidence packaging unit, used to generate evidence packages containing timestamps, geographic grid indexes, content identifiers, policy / version information, and device identity, and to sign and tamper-proof store them through trusted hardware; D. Challenge-response mutual authentication unit, used to interact with roadside units, law enforcement / detection terminals, or cloud services to declare capabilities and perform one-time challenges, and complete on-site visual verification with instantaneous modulation or pattern responses of the fingerprint; E. Privacy and Compliance Module, which is used to minimize personal data output while completing verifiable records, and implement differential privacy / coarsening / anonymization processing on evidence packages and fingerprint parameters; G. Failure and safety degradation unit, used to turn off the screen, freeze the frame, or reduce the brightness when synchronization / trust / compliance thresholds are triggered, and include the suppression reason and related thresholds in the evidence package to form a verifiable proof of non-playback; The system is configured to continuously generate externally detectable forensic fingerprints and form a verifiable chain of evidence under heterogeneous network conditions inside and outside the vehicle, so that a third party can use universal sensors to verify identity and behavior without accessing the vehicle's internal bus.

9. A vehicle structure according to claim 1, characterized in that The control system further comprises: A. a display controller, configured to perform pixel / row / column level driving and timing control on the housing display module; B. A calibration and compensation unit, configured to establish display surface geometry mapping, brightness / chromaticity / gamma / uniformity parameters, and gap fusion parameters, and to generate a distributable and protected calibration package; C. EOL test and acceptance unit, configured to perform multiple optical / geometric / electrical tests on the housing display module and generate qualified evidence accordingly; D. In-service self-check and health assessment unit, configured to trigger / perform self-checks during the vehicle's lifecycle in a manner that does not interfere with driving safety and is not noticeable, update health indicators, and optionally refresh compensation parameters; E. Diagnostic and interface unit, configured to read / write calibration packages, trigger self-test mode, and export logs and threshold events through on-vehicle / off-vehicle diagnostic links; F. Security and version control unit, configured to implement signing, version binding, monotonic counting, and rollback protection for calibration packages, EOL results, and in-service logs; The system is configured to complete initial calibration and generate a calibration package at the manufacturing end, perform self-test / recalibration and diagnosis periodically or on demand during the delivery and in-service stages, and trigger degraded presentation or screen shutdown under abnormal or out-of-bounds conditions.

10. A vehicle structure according to claim 1, characterized in that The control system further comprises: A. Display controller, used for pixel / row / column level driving and timing control of the housing display module; B. A control and algorithm engine, coupled to the display controller, employing a layered architecture comprising at least: B1. Policy layer: Generates playback permissions and constraints based on vehicle status, geographic and temporal domains, ambient light / weather, compliance policies, and content attributes; B2. Scheduling layer: Optimizes content source, bitrate / frame rate, timing, brightness, and color, subject to the constraints set. B3. Rendering layer: performs image stabilization / de-shaking, geometric mapping, seam blending, and gamma / uniformity compensation based on the scheduling results and outputs the frame; C. Compliance and security gates, set at a mandatory gate location between the policy layer and the scheduling / rendering layer, are used to perform degraded playback, freeze frames, or screen blackout when constraints are triggered, and to generate verifiable decision logs; D. Time base synchronization unit, used to align the playback pipeline with the reference clock and maintain the established synchronization accuracy; E. Quality Adaptive Unit, used to adaptively select bitrate, resolution, frame rate, and buffering strategy based on link bandwidth, latency, packet loss, and computational load; F. Image stabilization and anti-disturbance unit, used to maintain image stability or controlled instability under vehicle vibration / shock / bump conditions; The system is configured to achieve controlled presentation of video content displayed on the shell in a compliant, controllable, time-consistent, and optimally perceived quality under disturbance conditions without modifying other electronic and electrical architectures of the vehicle.

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