Microdriver array

Abstract

The present disclosure relates to integration of microdriver arrays in microdevice array structures enabling higher performance with multi-functionality capability. The present invention further discloses microLED and microsensor embedded display systems and interfaces, which are primarily visual output devices with limited interactive capabilities. Here invention a Multifunctional Display Hub integrates microLEDs and various microsensors within a single substrate.

Description

MICRODRIVER ARRAYCross-Reference to Related Applications

[0001] This application claims the benefit of, and priority to, U.S. Provisional Patent Application Nos. 63 / 814,952, filed May 30, 2025, and 63 / 675,177 filed July 24, 2024, which are hereby incorporated by reference herein in their entireties.Field of the invention

[0002] The present disclosure relates to integration of microdriver arrays in microdevice array structures enabling higher performance with multi-functionality capability.

[0003] Conventional display systems are primarily visual output devices with limited interactive capabilities. The growing need for intelligent, multifunctional user interfaces across industries demands display platforms that integrate sensing, processing, and control. This invention addresses that need by combining microLED display technology with microsensors and advanced data processing — including Al — on a unified substrate.Summary

[0004] The present invention relates to a system multifunctional microdevice system, comprising, an array of first-type microdevices disposed on a substrate and connected to a microdriver via row and column interconnects, an array of second-type microdevices disposed on the same substrate and connected to the microdriver via at least a subset of the same row and column interconnects, wherein the microdriver is configured to selectively control and / or read out both the first-type and the second-type microdevices via a time-multiplexed, shared driving and sensing scheme and wherein the second-type microdevices are fewer in number than the first-type microdevices per microdriver unit.

[0005] This invention relates to a multifunctional display system comprising a microLED substrate and integrated microsensors forming a unified display hub wherein the display surface is divided into multiple zones with each of these zones embedded with a dedicated set of microsensors and microLED display elements, and each zone configured for dedicated sensing or visual tasks.Brief Description of the Drawings

[0006] The foregoing and other advantages of the disclosure will become apparent upon reading the following detailed description and upon reference to the drawings.

[0007] Figure 1 shows an exemplary array of microdevices with at least two types of microdevices and a microdriver.

[0008] Figure 2 shows a high-level system with array of subarrays.

[0009] Figure 3 shows sequential timing diagram for multi-functional displays.

[0010] Figure 4 shows a random access driving mode.

[0011] Figure 5 shows one embodiment of the multifunctional display hub implemented with a zoned configuration.

[0012] While the present disclosure is susceptible to various modifications and alternative forms, specific embodiments or implementations have been shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that the disclosure is not intended to be limited to the particular forms disclosed. Rather, the disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of an invention as defined by the appended claims.Detailed Description

[0013] This invention introduces a Multifunctional Display Hub that integrates microLEDs and various microsensors within a single substrate. The system supports both zoned and nonzoned configurations. In the zoned architecture, the display surface is divided into functional regions, each handling specific sensor inputs or functionalities. In the non-zoned variant, sensors and microLEDs are distributed uniformly.

[0014] An embedded controller manages data acquisition from each sensor or zone. The data is processed by an Al-enabled data processor that interprets user inputs and environmental conditions to dynamically adjust display behavior or send commands to external control units.

[0015] The multifunctional display system is constructed on a substrate embedded with microLED pixels and a variety of microsensors. In the zoned configuration, the display surface is logically or physically divided into areas where each region is dedicated to specific tasks — such as different sensing capabilities, micro mirrors, micro solars, visual output, or combined functionality. These zones may be contiguous or overlapping, offering flexibility in design and interaction.

[0016] Alternatively, in the non-zoned embodiment, sensors or microLEDs are integrated across the entire substrate. There are no predetermined regions assigned to specific functions. Instead, the system dynamically interprets input across the entire surface, functioning as a seamless sensing and display interface.

[0017] Various types of microsensors are embedded within the substrate. For example, Opticalsensors detect visible light for gesture recognition and brightness adaptation, ultraviolet sensors for environmental and health monitoring, and infrared sensors for motion detection, health, awareness, occupancy, and thermal imaging. Vibration sensors, such as MEMS-based devices, can identify structural integrity or touch inputs. Impact sensors monitor physical taps and mechanical pressure. Microphone arrays detect acoustic signals, enabling voice recognition and spatial audio processing. The sensors may have another layer to detect directional signals for more accurate colocation, clear imaging, and mapping.

[0018] These sensors may be statically assigned to specific zones or dynamically utilized depending on real-time conditions and user interactions. The system is capable of combining multiple sensor inputs to enable a rich, multimodal interaction experience.

[0019] The invention supports concurrent interaction by multiple users. Through spatial and functional segmentation or intelligent input differentiation, the system identifies which user is interacting with which part of the display. This is achieved using data from different sensors and different locations in the display. For example, voice profiles, gesture recognition, and sensor-detected biometric cues can be used to map each instruction to a specific user. Users may perform different tasks simultaneously — one user may speak commands while another uses touch gestures — without conflict or confusion.

[0020] The Al engine plays a crucial role in this context-aware system, enabling the display to adapt to different users and usage scenarios. It also supports cooperative and competitive modes for collaborative environments, dynamically reassigning roles and permissions based on user input and behavior.

[0021] The embedded data processor includes an Al engine capable of real-time analysis of sensor data. It performs complex functions such as sensor fusion, where data from different sensors is combined to form a comprehensive understanding of the environment and user intent. The Al system tracks behavioral patterns and can predict user needs, offering a proactive interaction model. It adjusts visual outputs, triggers alerts, or sends commands to external systems based on the contextual interpretation of the inputs.

[0022] The system is capable of localizing the origin of user input by combining data from multiple types of sensors. For example, a user's voice command can be spatially located using the microphone array, while IR and visible light sensors verify the user’s gesture. Vibration sensors detect touch or impact on the surface. The Al engine integrates this data to determine the exact source and intent of the command. Based on this information, the data processor sends targeted instructions to control display zones or external devices, ensuring accurate and responsive interaction.

[0023] In this embodiment, the multifunctional display substrate is constructed without any predefined zones. The microsensors and microLEDs are integrated throughout the substrate in a distributed manner. The controller collects data across the entire surface, and the Al engine analyzes this data holistically.

[0024] This configuration is particularly advantageous for applications where a compact, all- in-one control and monitoring interface is needed. The substrate can act as a peripheral sensor and control unit for external display systems such as augmented reality (AR) glasses, VR headsets, or smart mirrors. In these applications, the system provides environmental context and user input data to the primary display device.

[0025] The multifunctional display hub is applicable across various domains. In automotive systems, it can serve as a smart dashboard, window, or mirror that distinguishes between driver, passenger, and pedestrian inputs and / or interaction. In smart homes, it functions as an intelligent control panel capable of managing the home smart features based on multiple inputs and resident interactions. In office environments, it supports collaborative interactions in conference settings. In aviation, it can be used in cockpit panels for pilot and crew input. Retail environments can benefit from a smart kiosk that can interact and understand the shopper and adapt to the situation. Consumer electronics applications include smart TVs, tablets, and wearable devices. In one embodiment, the consumer device can also act as health and fitness monitoring or coach. The screen in these devices can collect multiple input from each user in combination with the daily input and interaction devise results regarding health and wellness of the users.

[0026] This invention provides significant system-level advantages. Integrating display, multi sensing, and processing into a single unit reduces the number of discrete components and modules required. This results in smaller form factors, reduced manufacturing complexity, and lower assembly costs. Moreover, the unified design supports features and functionalities that would otherwise require multiple dedicated subsystems. These include real-time interaction analysis, environmental monitoring, and dynamic user interface adaptation.

[0027] Figure 1 shows a system with multi device arrays. Here the system comprises an array of one type of microdevices 102. These devices can be microLEDs, microsensors, or other types of micro-optoelectronic devices. The array is connected to a microdriver 106. These connections can be in rows 112 and columns 114. The driving mode for this array can be in row sequential, column sequential, or fixed patterns, or combinations thereafter. There can be another array of microdevices 104 different from the first array connected to the microdriver. The number of second types of microdevices can be less than the first type of microdevices permicrodriver. In one case, the second type can be microsensors or microLEDs or other micro- optoelectronic devices. In other related cases, the second device can be a thin film device such as organic semiconductors or thin film sensors. In another related embodiment, the second type of device can be electrochromic materials. The microdriver can control the functionality of the first and second types of microdevices. In one related embodiment, the second type of microdevice can be solar cells. The solar cell can act as a sensor for advanced interfaces or biometrics, in addition to collecting power from the ambient or display lights.

[0028] A high-level system 200 as shown in Figure 2 can have an array of structure 100 as demonstrated in Figure 1. The high-level system 200 can have traces 202 and 204 connecting the sub-arrays of Figure 1. These traces can be connected in rows 202 or columns 204 or as a daisy chain.

[0029] Figure 3 illustrates an exemplary time-multiplexed operational sequence executed by the microdriver for controlling a multifunctional microdevice array that includes both first-type microdevices (e.g., microLEDs) and second-type microdevices (e.g., electrochromic transparency control elements or other optoelectronic actuators), along with optional sensing elements.

[0030] The timing diagram is divided into discrete cycles that repeat periodically, allowing coordinated operation of all device types using shared interconnects and the same microdriver. Each complete frame comprises the following functional phases:

[0031] In this phase, row and column addressing signals are applied to configure the operational state of the first-type microdevices, which in one embodiment are microLED pixels. The programming data determines which pixels will be activated, their intensity levels (e.g., via PWM or current modulation), and color in RGB systems.

[0032] This cycle may include digital data loading into local memory (such as latches or shift registers) at each pixel or analog voltage application, depending on the display driver architecture (active or passive matrix).

[0033] Immediately following Programming 1, the microdriver enters the Driving 1 phase, during which the pre-programmed microLED pixels are activated. During this phase:

[0034] Selected microLEDs emit light according to the programmed intensity.

[0035] The microdriver supplies the appropriate drive current or voltage across the selected rows and columns.

[0036] This phase may be short in duration (e.g., microseconds) but repeated rapidly to achieve visual persistence.

[0037] This driving window may also be synchronized to minimize perceptible flicker orcrosstalk with other device types.

[0038] In this phase, the microdriver configures the second-type microdevices, such as electrochromic elements responsible for modulating local transparency or reflectivity. These may be addressed through the same matrix interconnects or via a partially independent control grid.

[0039] The driver may apply a preset voltage or pattern to alter the electrochemical state of these devices. This may include:I. Writing control signals to modulate tint.II. Configuring grayscale transparency states.III. Setting patterns for privacy, shading, or decorative display.

[0040] Depending on device characteristics, programming may persist for milliseconds or longer, enabling the driver to deactivate these lines during other cycles.

[0041] In this window, the second-type devices are actively biased or maintained in their desired state:I.Electrochromic pixels may continue their charge / discharge process.II.Thin-film actuators or other functional materials receive hold voltages.III. Passive state maintenance may also occur, depending on the memory or retention nature of the devices.

[0042] This driving phase ensures that the second function (e.g., transparency modulation) is fully executed before transitioning to sensing.

[0043] Following the actuation phases, the microdriver transitions to a Sensing phase, during which it reads out data from the array’s embedded sensing channels. These may include:I.Photodiodes (ambient light, proximity, eye tracking).II. Biosensors (temperature, pulse).III. Energy harvesting microcells used in dual mode (photovoltaic + sensing).

[0044] During this phase: a. The driver configures select columns as analog read lines. b. Row enable signals to scan each sensor. c. Output currents or voltages are sampled using on-chip ADCs or sent to external processors.

[0045] To minimize interference: a. Active driving of LEDs and electrochromic devices is paused or decoupled. b. Noise filtering or shielding may be employed to protect sensing integrity. c. This readout enables adaptive system control, for example:d. Adjusting microLED brightness based on ambient light. e. Modulating transparency for dynamic contrast or privacy. f. Triggering feedback or user interaction events based on detected signals is important. g. The duration and order of each cycle can be dynamically adjusted based on application demands, environmental feedback, or system mode (e.g., display-intensive, low-power, sensing-priority).

[0046] These cycles are controlled by firmware embedded or finite state machines within the microdriver.

[0047] Clock synchronization, temporal multiplexing, and interleaved scanning allow efficient reuse of matrix interconnects.

[0048] In the case of using an electrochromic device as the second microdevice, one of the electrodes of the electrochromic device can be patterned to create a second array. The electrochromic array can control the transparency of the local area. It can be also used to generate content by controlling the transparency of the color of the electrochromic layer.

[0049] Further description of Figure 3 illustrates an exemplary sequential timing diagram for a multifunctional microdevice system controlled by a shared microdriver. The diagram represents time progression across a single operational frame and demonstrates how multiple device types — namely microLED emitters and transparency-control elements — are managed within a single control cycle, alongside a sensing phase for real-time feedback.

[0050] This time-multiplexed control sequence enables the system to operate multiple functions over a shared row-column matrix without signal interference, by interleaving their activity over time.

[0051] The timing cycle for each row (or pixel group) includes the following coordinated subphases:

[0052] Programming 1 / Driving 2: a. In this initial segment, the microdriver configures the first-type microdevices (e.g., microLEDs) with image or illumination data (Programming 1), while optionally maintaining or refreshing the second-type microdevices (e.g., electrochromic pixels or thin-film actuators) in their previously set state (Driving 2). b. This phase ensures minimal latency between programming and activation of the primary display elements.

[0053] Driving 1,2: a. During this phase, both microdevice types are actively driven: b. The first-type microdevices emit light based on programmed data.c. The second-type microdevices (e.g., electrochromic or active modulation elements) may receive biasing voltages to transition or stabilize their optical state. d. Co-driving is permissible due to electrical or functional independence between device types.

[0054] Driving 1 / Programming 2: a. While continuing to drive the first-type devices, the microdriver initiates Programming 2 for the second-type microdevices. b. This may involve charging electrochromic pixels, reprogramming transparency levels, or preparing modulation devices for the next visual phase.

[0055] Driving 1,2 / Sensing: a. In this final segment of the cycle, while maintaining visual output from both device types, the driver transitions to a sensing phase, enabling readout from integrated sensors (e.g., photodiodes, biometric sensors, or ambient detectors). b. The sensing operation may be synchronized to avoid electrical or optical interference with display emission or transparency transitions.

[0056] This frame-based timing structure is repeated continuously across the array, with each row or sub-array addressed in sequence. It allows real-time dynamic display, optical modulation, and sensor feedback without dedicated parallel control lines or external timing modules.

[0057] Figure 4 illustrates a schematic representation of a random-access driving architecture for a multifunctional microdevice array system, in which the full display or functional area is partitioned into independently controllable segments. Each segment comprises a subset of the total pixel array and is capable of individual operation.

[0058] In contrast to the time-sequenced driving model shown in Figure 3, where all rows or regions are driven in a strict sequential order, the configuration in Figure 4 enables parallelized and random-access control of individual or grouped segments.

[0059] Each labeled block in Figure 4 represents a segment, which may be defined at the subpanel, tile, or logical partition level.

[0060] Within each segment, both first-type microdevices (e.g., microLEDs) and second-type microdevices (e.g., electrochromic elements or sensors) are present and are driven or read by one or more microdrivers.

[0061] In some embodiments, a dedicated microdriver is assigned to each segment; in others, a microdriver may be shared across adjacent segments or dynamically multiplexed.

[0062] Unlike full-array sequential control, segments can be independently accessed forprogramming, driving, or sensing at any moment, allowing asynchronous operation across the system.

[0063] For example:

[0064] One segment may be in Driving 1,2 mode, where both microLEDs and electrochromic elements are actively emitting or modulating.

[0065] Another segment may be simultaneously undergoing Programming 1 or Programming 2, updating its display or modulation state.

[0066] A third segment may be in a sensing phase, capturing ambient light or biometric signals.

[0067] The architecture supports per-column access granularity, allowing each vertical column or segment to be addressed for one operation type (e.g., programming or sensing) at a time. This enables greater flexibility for power management, adaptive refresh, or event-triggered interaction.

[0068] In one variant, hybrid operation is employed where some parts of the array operate in sequential mode (as in Figure 3) while other segments use random access control.

[0069] This mixed-mode driving enables system designers to prioritize performance, latency, or power efficiency depending on spatial function:

[0070] Sequential mode may be optimal for large-area uniform displays.

[0071] Random access may be used in high-interaction regions (e.g., touch zones, HUD focus areas, biometric sensing zones).

[0072] This architecture allows dynamic resource allocation: the system can reconfigure which segments are active or idle, reducing unnecessary power usage and enabling local refresh where only changed pixels are updated.

[0073] It supports multi -threaded microcontroller or ASIC implementations, where each segment or group is managed by its own state machine or logic thread.

[0074] In embedded systems or loT displays, such configuration enables parallel sensing and display, or even localized computing, particularly useful for edge Al or wearable devices.

[0075] \

[0076] Figure 3 and 4 can be adopted for systems with more than one microdevice or function.

[0077] The invention provides a multi-microdevice array architecture in which a single microdriver chip controls multiple types of microdevices arranged in a shared array structure. As shown in an exemplary embodiment (Figure 1), a first array of microdevices (102) is connected to a microdriver (106) via patterned row lines (112) and column lines (114). This first array can consist of microscopic light emitters or sensors — e.g., microLED pixels, photodiode microsensors, or other micro-optoelectronic devices. The microdriver energizes orreads these devices in a matrix addressing scheme, which can include row-sequential scanning, column-sequential scanning, fixed addressed patterns, or combinations thereof. In the same structure, at least one second array of microdevices (104) of a different type is also connected to the same microdriver. The number of second-type devices per driver is fewer than the first type in a given module, reflecting that these might be specialized elements (for example, one sensor per group of display pixels). The microdriver (106) is configured to selectively drive or query both the first and second device arrays, thereby sharing control circuitry across multifunctional elements. This unified control approach reduces system complexity by eliminating separate drivers for each function and enables tight coordination between the different microdevices.

[0078] Figure 5 illustrates one embodiment of the multifunctional display hub implemented with a zoned configuration. The foundation of the hub is the same as described in Figure 1 to Figure 4 wherein an exemplary time-multiplexed operational sequence is executed by the microdriver for controlling a multifunctional microdevice array. Here the microdevice may be a sensor, microsensor or a microLED. As such Figure 5 embodiment is able to implement all aspects of Figure 1 to Figure 4 embodiments.

[0079] The display substrate can be subdivided into multiple functional zones. Here it is subdivided three distinct functional zones labeled as Zone 1, Zone 2, and Zone 3. Each of these zones is embedded with a dedicated set of microsensors and microLED display elements.

[0080] The purpose of this configuration is to enable each zone to independently perform sensing and display tasks. For instance, Zone 1 may be configured with infrared and vibration sensors, Zone 2 may include visible light sensors and a microphone array, and Zone 3 may contain ultraviolet sensors and impact sensors. These zones may be defined either physically or logically and may also include overlapping areas depending on application requirements.

[0081] A controller is operatively connected to the display substrate and is responsible for acquiring sensor data from each individual zone. The controller then transmits this data to a data processor. The data processor, which may incorporate artificial intelligence capabilities, interprets the incoming sensor data, determines the context and user intent, and generates appropriate control signals. These signals may be directed back to specific zones of the display to alter their visual output or forwarded to external systems or devices to execute commands.

[0082] This figure emphasizes the distributed intelligence and modular structure of the invention, enabling localized interaction, multi-user support, and scalable integration across various applications.

[0083] Device Types: The first microdevice array (102) can be any primary functional array, such as a display or primary sensor grid. In many embodiments, it comprises microLED emitters arranged in a high-resolution matrix to serve as a display or indicator. Alternatively, the first array could be an array of identical sensors (e.g., an imaging sensor array or an environmental sensor matrix). The second microdevice array (104) introduces a different functionality co-located with the first. Example second-type devices include:

[0084] MicroSensors: In one embodiment, the second array comprises micro-scale sensors (e.g., photodiodes, temperature microsensors, or imaging pixels) interspersed among predominantly microLED emitter pixels. These sensors may occupy only a fraction of the positions or area that the first array’s devices do, hence fewer in number.

[0085] Alternate Emitting Devices: In another case, the second array might include microdevices of a different emission type (for instance, infrared microLEDs or micro-lasers among visible microLEDs, or vice versa) for added functionality like depth sensing or communication.

[0086] Thin-Film Devices: In related embodiments, secondary devices are implemented in thin-film technology. For example, an array of organic semiconductor devices or thin-film transistor (TFT) based sensors can be integrated on the same substrate. These thin-film devices could be printed or deposited over the microLED array, forming a semi-transparent sensor layer that is addressed by the same row / column lines.

[0087] Electrochromic Elements: In another embodiment, the second array comprises electrochromic material segments patterned as pixels. Here, one electrode of each electrochromic pixel is shaped into a matrix so that the microdriver can apply voltages to locally modulate the transparency or color of these segments. This allows dynamic control of tint or opacity in specific regions of the device - for example, to adjust a display’s background or create imagery by selective light modulation.

[0088] Micro Solar Cells: In yet another embodiment, the second-type microdevices are microscale solar cells or photodiodes acting as photovoltaic harvesters. These may double as sensors (e.g., ambient light or biometric sensors) and also collect energy from ambient light or from the display’s own emitted light. The microdriver can switch these photodiodes between a sensing / readout mode and a charging / harvesting mode as needed.

[0089] Shared Microdriver Control: The microdriver (106) is an integrated driving / control circuit that may be implemented as a semiconductor chip (e.g., CMOS driver IC or a microcontroller) or as a distributed backplane circuit (e.g., a TFT active matrix) bonded or integrated with the arrays. It provides row and column selection signals and drivecurrents / voltages to activate the first array’s devices, and it also interfaces with the second array’s devices by either driving them (for emitters or modulators) or reading them (for sensors and energy harvesters). Because one microdriver controls both types, it can synchronize and multiplex operations among them. For instance, the driver can momentarily pause or modulate the driving of microLED pixels and instead read out sensor signals on shared lines, all within a sub-millisecond timescale such that to an external observer the display operation appears continuous. This interleaved driving / readout scheme allows the same physical lines and driver circuits to serve multiple purposes in different time slices or scan cycles, enabling integrated operation without crosstalk. In embodiments with light sensors and emitters together, the driver may implement a timing scheme where emitters are turned off (or driven in known patterns) while sensors sample, thereby preventing optical interference from local emitters. Known challenges such as LED-to-sensor optical crosstalk can be mitigated by designing physical spacing or shielding and by temporal separation of emit and sense cycles. The microdriver may also include mode control logic to switch between different functionalities - for example, a display mode, a sensing mode, a power-harvest mode, or combined modes. Furthermore, advanced drivers can perform signal processing, such as amplifying sensor readings or regulating LED brightness on the fly, enabling adaptive control of the array.

[0090] High-Level Modular System: Figure 2 illustrates a higher-level system (200) in which multiple multi-device sub-arrays (100) as described above are tiled or linked to cover larger areas. Traces (202, 204) connect these sub-array modules in either row / column buses or daisychain configurations. This means the architecture is inherently scalable: a large display or sensor surface can be constructed by repeating the base unit and linking the microdrivers in a network. In one approach, each sub-array has its own microdriver controlling local devices, and adjacent sub-arrays communicate via serial or parallel links (202 / 204) to coordinate content and sensing data across the entire system. Alternatively, the traces could bus a common control or power supply to all modules. Such an arrangement supports scalability from very small wearable patches up to room-size intelligent surfaces by modular integration.

[0091] One key advantage of the disclosed multi -mi erode vice array is its adaptability to many application platforms. A single integrated array structure can be configured or customized for use in vastly different domains while leveraging the same core architecture. The following are illustrative cross-platform embodiments.

[0092] Consumer Electronics (Displays & Smartphones): In portable consumer devices like smartphones, tablets, and laptops, this technology enables interactive displays that incorporate sensing and imaging functions directly into the screen. For example, a phone display built froma microLED array (first device type) could include embedded photodiode pixels (second device type) under the screen. The shared driver would alternate between driving the microLED display and reading the photodiodes, effectively turning the screen into a camera or fingerprint sensor without dedicated sensor hardware. This yields bezel-free designs (no need for separate camera holes) and new functionality like full-screen fingerprint authentication or gesture detection across the display surface. Because microLED pixels are tiny and spaced with low fill-factor, there is ample space to integrate sensors in the pixel matrix. Current research has demonstrated feasibility by co-integrating microLEDs with organic photodetector arrays for “smart” displays that both emit and sense. This means near-term consumer devices could use one microdriver chip to control a high-resolution display and simultaneously capture images or ambient light through the same pixel array, enabling features like gaze tracking, ambient adaptive brightness, or even health monitoring via the screen. The integrated approach reduces component count (one chip instead of separate display driver and sensor ASICs) and could lower cost and complexity for manufacturers, while providing end-users with seamless multifunctionality in a single compact module.

[0093] Automotive Systems: In automotive applications, robustness and multifunction are crucial. The disclosed array can be used in smart dashboards, heads-up displays (HUDs), and interactive windows. For instance, an instrument cluster or HUD could have an embedded microLED display for speed and navigation, integrated with light sensors that detect ambient conditions or driver presence, plus an electrochromic layer to adjust transparency of the HUD combiner glass. A single microdriver controlling all these elements can adapt the display brightness based on sensor input (day or night mode) and even dim or clear sections of the windshield via electrochromic pixels to enhance contrast. Another embodiment is an interactive side window: a transparent microLED array laminated into a car window can display images or info, while an electrochromic overlay (second device) provides a “black switch” for privacy or glare reduction. The driver can toggle the window from transparent to opaque by driving the electrochromic segments, effectively turning a clear window into a screen or a shaded panel on demand. This smart window might also include touch or gesture sensors (e.g., IR emitter-detector pairs integrated in the array) to allow passengers to interact with the display by touching the glass. In automotive lighting, a multi-device array could serve as a matrix LED headlight or taillight with integrated sensors that monitor environmental conditions. For example, a taillight composed of red microLEDs could host a few photodiodes that detect ambient light or rain (for automatic brightness adjustment or hazard detection), all managed by one driver. Importantly, automotive embodiments are designed to meet thestringent quality and safety standards of the industry. This cross-domain use in automotive showcases the architecture’s ability to simplify system integration (fewer separate ECUs or control modules) and enhance reliability by reducing interconnects.

[0094] Wearable Medical Devices: Wearable health monitors and medical patches can greatly benefit from an integrated multi -function array. Consider a wearable health patch that adheres to the skin: using the disclosed design, the patch can have an array of microLEDs (for therapy or display of status) interwoven with biosensors (for example, photodiodes for pulse oximetry, electrodes for ECG, or temperature sensors). A single microdriver ASIC on the patch can sequentially drive microLEDs to emit light into the skin (as in pulse oximetry or phototherapy) and then read the photodiode response to measure heart rate or blood oxygen levels. In one embodiment, tiny green and infrared microLEDs form an array that can illuminate blood vessels, while photodetector pixels measure the reflectance changes — this could allow continuous monitoring across a larger skin area rather than one-point sensing. The same array might display a simple readout or alert via microLED indicators, ensuring the patient sees status without a separate display. Because space and power are at a premium on wearables, integrating functions saves room (one set of electrodes and interconnect instead of many) and reduces power consumption through shared resources. The materials can be biocompatible and flexible: for example, the array could be built on a flexible polymer substrate that conforms to the body and use organic semiconductor sensors for detecting biomarkers (e.g., an organic thin- film transistor sensing chemical presence in sweat). The microdriver could be implemented as a thin flexible chip or printed electronics, making the entire patch stretchable. All these components must adhere to medical safety standards. Ensuring low heat emission, galvanic isolation of sensors, and reliable operation under various physiological conditions are important design considerations. The multi-array approach also facilitates regulatory compliance by encapsulating multiple functionalities into a single tested module - for example, once the patch module is certified for safety and efficacy, adding features (like an extra sensor type) may not require a wholly separate device certification since it leverages the same platform.

[0095] AR / VR Displays and Smart Glass: Augmented reality (AR) and virtual reality (VR) systems demand advanced display integration on see-through surfaces and simultaneous sensing (for environment mapping, eye tracking, etc.). The disclosed structure can be employed in AR smart glasses, where a microLED display matrix is embedded in the lens to project images into the user’s eyes, while surrounding that display are transparent sensor elements and dynamic dimming components. In one embodiment, the primary array (102) is a microLEDmatrix producing AR imagery. A secondary array of electrochromic pixels is laid over or behind the microLEDs to act as a dynamic dimming layer - controlled by the shared driver, it can adjust tint from fully transparent (for pass-through view) to darkened (for outdoor use or to increase image contrast). Commercial AR glasses already employ electrochromic dimming with discrete drivers; here a unified driver could coordinate the dimming level with the displayed content or ambient light sensor readings, achieving one-touch immersion control that switches the lens from clear to shaded in sync with virtual content. Additionally, arrays of photodiodes or cameras can be integrated at the periphery of the lens's display to serve as eye trackers or scene sensors. Using the multi-device approach, the glasses’ lens can simultaneously display information and monitor the user’ s gaze and environment. For example, IR microLEDs and photodiodes in the array could perform time-of-flight sensing for hand gestures in front of the glasses, or track pupil movement for foveated rendering. The microdriver would manage these functions in a time-multiplexed fashion, ensuring that sensing occurs in the microseconds when the display is not updating (taking advantage of the high refresh rates of microLEDs). The entire AR system benefits from this integration by reducing the number of separate components (leading to thinner, lighter glasses) and by providing a tightly coupled control (the device can, for instance, automatically darken the electrochromic layer and boost display brightness when an ambient light sensor in the lens detects sunlight). AR / VR devices must also meet optical safety standards. The described design can be tuned to comply, for example by limiting drive current per pixel or using diffusers, all under control of the microdriver’s firmware.

[0096] Industrial and loT Sensor Networks: The invention also extends to Internet of Things (loT) devices, particularly those requiring distributed sensing with local feedback or indication. Consider a building energy management system with numerous small sensor nodes placed around a facility. Using this technology, each node could have a mini array containing, say, a few indicator microLEDs (to display status or alerts with color codes) and several sensors (temperature, motion, light, etc.) on one board. A single low-power microdriver chip on each node controls the LED indicators and scans the sensors in a cycle. Because the microdriver can also manage power, it could turn off the LEDs except when needed and put sensors into low- power states between readings, extending battery life. Furthermore, by integrating micro solar cells as described earlier, these nodes can harvest ambient indoor light to recharge — tiny photovoltaic cells on the array can trickle-charge a capacitor or battery. Ambient-light energy harvesting has proven viable even with very small cells in low-light conditions, so an array of micro-scale solar pixels distributed among the sensors and LEDs can generate enough powerfor a truly wireless, maintenance-free sensor node. One embodiment envisions a smart environmental sensor tile for agriculture or smart cities: the tile includes microLEDs that can flash or display data, photodetectors and chemical sensors to measure environmental parameters, and micro solar harvesters. The microdriver might implement an intelligent schedule (for example, spend 1% of the time driving a status LED or transmitting data via an optical signal, 5% of the time reading sensor values, and the rest harvesting energy or sleeping). This adaptive control maximizes the use of minimal power resources. In an industrial context, such an array could be built into smart indicators on machinery - showing warnings or machine status with microLEDs and simultaneously sensing vibration or temperature from built-in MEMS sensors. Because everything is integrated, the module is compact and easier to ruggedize (potted as one piece) for harsh environments. It can be designed to comply with industrial standards. A factory could use the same type of module on many machines, each configured in software for a specific sensing function, which reduces the need for diverse spare parts and streamlines regulatory approvals for safety since the module’s safety characteristics (e.g., ingress protection, electrical ratings) are qualified once.

[0097] Transparent and Opaque Substrates: Depending on application, the substrate carrying the microdevice array could be transparent (glass, clear plastic) or opaque (silicon, ceramic). For embedded displays or lighting in glass, or transparent window displays, a transparent substrate is used so that non-emissive areas remain see-through. In such cases, transparent conductors like indium tin oxide (ITO), graphene, or silver nanowire meshes can be employed for the row / column lines and electrodes, minimizing visible wiring. The microdevices (LEDs and sensors) are small enough to be unobtrusive and are spaced out to preserve transparency. The microdriver IC might reside well-defined array or random places connected through transparent traces. Spreading microdrivers with randomness in positions can reduce any visual artifacts. In contrast, for non-see-through devices, an opaque substrate can be used. The disclosure covers both extremes: e.g., a smart contact lens display would require all components to be transparent or invisible except the light output, whereas a wall-mounted modular display panel can use a printed circuit board with driver chips on the back. Thermal considerations also come into play: opaque substrates (like ceramic) can dissipate heat better, which might be chosen for high-power microLED arrays (such as automotive headlights or large video walls), whereas transparent plastics may need additional thermal management for long-term reliability of LEDs and electrochromic.

[0098] A hallmark of the invention is its integrated driving scheme, which handles different device types in a coordinated manner. At the circuit level, several key aspects enable this integration.

[0099] 1. Multiplexed Driving and Sensing: The microdriver implements multiplexing techniques to control a large number of elements with limited I / O pins. For a display array, this typically means scanning one row at a time while driving columns, or vice versa, refreshing the entire matrix at a fast rate (e.g., 60-240 Hz for visual persistence). In the multi-device array, the same scanning framework can be extended to secondary devices. For example, during a display refresh cycle, the driver addresses each row of microLEDs in turn, outputting the appropriate column signals to light specific LEDs. To incorporate sensors in this cycle, the driver may allocate certain cycles as sensor readout cycles. In a sensor cycle, the driver configures the circuit so that instead of sourcing current to LEDs, it biases the sensor elements (photodiodes, etc.) and measures the current or voltage from them. This could be done row by row as well: e.g., after driving row first LEDs, the driver might switch to sense mode for row 1 sensors, reading data into an ADC, then move to row 2, and so on. The timing can be interwoven such that sensing does not noticeably degrade the refresh of the display. Alternatively, the driver could perform sensing in an off-screen interval (like between frame refreshes or during V-sync periods in a typical display protocol). Advanced timing control logic or firmware in the driver ASIC manages these transitions smoothly. This multiplexed operation means adaptive functionality: the system might dynamically adjust how often it reads sensors vs. updates display based on context (for instance, reading environmental sensors more slowly to save power, but reading a camera sensor array quickly when user requests a scan). The microdriver may contain memory buffers to store display image data and sensor data concurrently, ensuring no loss of information during switching.

[0100] 2. Adaptive Drive Control: Because the microdriver sees both the “input” from sensors and controls the “output” of actuators, it can implement closed-loop control algorithms directly at the hardware level. One example is ambient brightness adaptation: an ambient light sensor in the array detects the viewing environment’s brightness, and the driver, using that data, adjusts the current through microLED pixels to maintain optimal visibility or save power. Another example is self-test and calibration: the driver can periodically use sensors to monitor the performance of the emitters (for instance, a photodiode adjacent to an LED could measure that LED’s light output, allowing the driver to calibrate the LED brightness over time or detect failures). In a microLED display with many integrated photodiodes, this could enable per-pixel calibration to correct uniformity and aging effects. Additionally, if the secondary devicesinclude things like temperature sensors at various locations of the array, the driver can measure those and modulate drive strength to avoid overheating certain regions, thereby implementing thermal management. All these adaptive controls happen on the fly, making the system smarter and more reliable without external intervention.

[0101] 3 Power Management and Energy Harvesting: The integration of elements like solar cells or energy-scavenging sensors allows the microdriver to manage power in innovative ways. In one embodiment, when ambient light is available, the driver switches some microdevices into power-harvesting mode - e.g., connecting a set of micro solar cells to charge a storage element. It may do this when the main function (display or sensing) is in low-demand or idle. Conversely, if the system’s battery is low, the driver might reduce the duty cycle of power-intensive operations (like dimming the display via the electrochromic layer and lowering LED brightness) and funnel more time into harvesting energy. This dynamic reconfiguration is orchestrated by on-board power management circuits within the driver. The driver could include DC-DC converters or switches that route the harvested energy to either its own supply rails or to charge an external battery. The bidirectional nature of some microdevices can be exploited too: for example, a microLED can act as a photodiode when reverse biased. The driver could in theory drive an LED at times and at other times read it as a sensor (an LED can generate a photocurrent under illumination). This simplifies hardware (the same device doing double duty) and has been explored in research for interactive displays. The microdriver’s circuit would toggle the bias on such LED pixels to switch modes. In terms of power delivery, having one driver also means a single power regulator system can be used for all devices, which avoids duplication. The driver might support multiple voltage domains - for instance, driving LEDs might require e.g. 3-5 V, while sensors and logic use 1.8 V- and handle distribution of these. In a high-level system with sub-arrays (Figure 2), power management can be distributed: each sub-array’s driver does local power optimization, and the modules communicate power status or share energy (one module’s solar harvest might even help power a neighbor via the connecting traces 202 / 204 in a daisy chain configuration).

[0102] Interface and Communication: At system level, the microdriver can also manage data interfaces. For example, it may incorporate a communication module (SPI, FC, MIPI DSI, etc.) to receive image data for a display or send out sensor readings to a host processor. In loT scenarios, the microdriver could include a wireless transmitter (Bluetooth Low Energy or a simple optical UART via microLED blinking) to report data, truly acting as a system-on-chip for the node. This reduces the need for an external microcontroller in simple applications, asthe driver itself handles both the device control and the data handling (somewhat analogous to “smart LEDs” in LED lighting that have built-in controllers).

[0103] Through these circuit-level innovations, the multi-device array achieves integrated operation that would traditionally require several separate subsystems. The result is a more responsive system (sensors and outputs can interact in real time under one controller) and a more compact design (shared wiring and electronics). The described architecture generalizes this concept to any combination of microdevices.

[0104] Fabrication Approaches: Manufacturing the multi -microdevice array can follow several approaches depending on the material choices discussed. One common route is heterogeneous integration, where different components (microLED chips, sensor chips, driver ICs) are fabricated separately at their optimal wafer process and then assembled. For example, an array of microLEDs might be fabricated on a III-V semiconductor wafer and mass-transferred onto a target substrate in a precise arrangement. Concurrently, a silicon wafer yields many microdriver ICs which are thinned and then bonded to the same substrate (either from the backside or peripherally) aligning with the array’s contacts. Similarly, if using discrete sensor chips (like tiny CMOS image sensors or MEMS sensors), those could be bonded in designated locations of the array. Advances in micro-assembly, such as elastomer stamp transfer or wafer bonding with interconnect, make it feasible to integrate thousands of tiny chips (sometimes called “chiplets”) onto one panel. The microdriver chips themselves can be extremely small (millimeter-scale) if they only need to drive a limited sub-array, aiding in tiling them without large dead space. Another approach is monolithic integration: build everything on one substrate. This could mean starting with a silicon wafer, creating the driver circuits in CMOS, and then building microdevices above them (for instance, using back-end-of-line processes to deposit LEDs or sensors on top of the CMOS circuits). Research into monolithic microLED displays on silicon is underway, though challenges include process compatibility between CMOS and III-V devices. For lower-performance needs, monolithic fabrication on glass or plastic via printing is possible as mentioned (printing LEDs, etc., and perhaps printing polymer drivers). Each approach has trade-offs in cost and yield.

[0105] Yield and Redundancy: When integrating multiple functions, yield management is critical - a defect in either a display pixel or a sensor pixel, or the driver could impair the whole module. To address this, the design can include redundant elements or self-healing techniques. For instance, extra rows or columns of microLEDs might be present, which the driver can activate to replace a failed pixel (similar to redundancy in LED displays for yield enhancement). If a particular sensor fails, and if sensors are sparse, perhaps the system caninterpolate from neighboring sensors. Additionally, since the microdriver has insight into each element’s status via sensors, it could detect stuck or dead pixels / devices and compensate (e.g., increase drive to neighbors, or ignore a faulty sensor reading). From a manufacturing angle, having the microdriver be separated until final assembly means each part (LED array, sensor array, driver IC) can be tested independently before integration, known as KGD (known good die) assembly, to improve final yield. The assembly of components itself must be precise - alignment tolerances for microLEDs or micro-sensors are in the micron range to match the driver interconnect pattern. Technologies like self-alignment using solder bumps (where surface tension pulls chips into alignment) and computer vision-guided placement are used.

[0106] Scalability: The architecture is inherently scalable in two senses: spatially (from small to large areas) and functionally (from two device types to many types). Spatial scalability is achieved by the modular tiling approach (Figure 2) and by designing communication between modules. For example, a large billboard display could consist of hundreds of driver / control units each covering a section; they link together through a cascade bus (the “daisy chain” mentioned) to operate as one coordinated screen. This modular approach also eases manufacturing, since smaller sections can be fabricated and tested, then assembled like tiles to form a big display or sensor array. In terms of functional scalability, while the patent exemplifies two types of microdevices, the concept can extend to more than two in a single array. A single microdriver could potentially manage an array containing microLEDs, photodiodes, electrochromic pixels, c / perhaps micro-actuators (like MEMS mirrors or microfluidic pumps in a lab-on-chip device). Each additional device type might require additional driver circuitry (for example, driving a MEMS might need analog waveforms or high voltages, which can be built into the driver's design). The system is flexible enough that if future technologies introduce new micro-scale components (e.g., quantum dot light converters, micro-antenna for 5G communications embedded in display, 6G real time control with faster data transfer and data intensive modes as well low latency for remote machine control or auto robotics or auto automotive solutions that may include medical devices), they could be added as another “array” controlled by the same driver grid.

[0107] Compatibility with Standards and Processes: From a manufacturing standards perspective, the design can leverage existing infrastructure of the semiconductor and display industries. For instance, standard pick-and-place or wafer bonding equipment can be used for assembling microLEDs and driver ICs. The materials chosen (silicon, GaN, glass, etc.) have known process standards (SEMI standards for wafer bonding, IPC standards for circuit board assembly if using PCB, etc.). For quality control, the modules would undergo standardenvironmental stress tests and compliance tests depending on target industry. Because the same physical device might be designed for different sectors (with minor modifications), the core manufacturing process can be standardized, and then variations can be introduced at packaging level. For example, a base module of a microLED+sensor array could be encapsulated differently for consumer (in a smartphone OLED-like module), versus for medical (in a biocompatible polymer with a sterilizable coating), without changing the core silicon or device fabrication.

[0108] Cost Implications: Initially, integrating multiple functions might increase complexity and cost per unit (since it requires mixing technologies and possibly more expensive precision assembly). However, at scale, this approach can lower system-level costs. Instead of producing and assembling separate displays, sensors, and drivers, manufacturers produce a single integrated module. This reduces the number of assembly steps and the number of separate components (which in supply chain terms means fewer parts to source and stock). For high- volume products like smartphones, removing something like a standalone proximity sensor and using the integrated display to perform that function can save a few cents per device, which adds up. Moreover, as standardization kicks in (see below), the same module could be deployed across different products, achieving economies of scale. The modular tile approach allows defective tiles to be discarded or repaired rather than scrapping a whole large panel, potentially improving yield for large displays. Over time, as the technology matures, we can expect these multi -function arrays to be mass-produced similarly to how touch-screen displays (which integrate touch sensors into displays) became ubiquitous and cost-effective.

[0109] Designing a multi -function microdevice system requires meeting the regulatory and safety standards relevant to each function and each industry in which it’s used. Below, we outline how embodiments of this invention align with or facilitate compliance with such standards.

[0110] Medical Device Standards: For wearable or implantable medical embodiments, safety is governed by standards, which cover basic safety and essential performance of medical electrical equipment. The integrated approach can aid compliance: by having one integrated circuit and array, there are fewer points of failure and fewer exposed electrical connections, which simplifies risk analysis for electrical shock and malfunctions. The system can be designed as a low-voltage device, with all patient-contacting parts (like sensor electrodes or optical emitters) isolated through the driver’s design (e.g., optocouplers or galvanic isolation built into the IC if needed for high safety class). Since our design can encapsulate everything in a single package, applying a biocompatible coating to the module is straightforwardcompared to coating multiple separate components. Quality management standards are facilitated by the modular approach: a company can develop one module under a controlled design process and then reuse it in multiple products (e.g., a vitals patch, a glucose sensor display) while maintaining compliance documentation for that core module. In terms of function, features like self-test and calibration under the microdriver’s control support ensuring that sensors and indicators are working correctly and timely alerts can be given if a fault is detected. Also, if the device is used for diagnostics or measurement, proper standards (specific to particular medical devices such as pulse oximeters or ECGs) would apply — our multi-device can be tested against those as if it were a combination of a standard sensor and display, since functionally it provides both.[oni] Automotive and Transportation Standards: Automotive electronics must adhere to a host of standards for safety, reliability, and environmental resilience. Because the microdriver and microdevices can be encapsulated together, it’s possible to design the package for, say, - 40 °C to +105 °C operation and to pass thermal cycling and mechanical shock tests as a unit. Functional safety is crucial if sensors or display information are used in driving decisions. In a case where, say, the array detects driver gaze or road conditions, the system should be developed to meet an Automotive Safety Integrity Level (ASIL). The simplicity of having fewer electronic control units works in favor of safety - there are fewer potential points of communication failure. The microdriver can have built-in diagnostics (as described) that regularly check the health of pixels and sensors, which can be part of a safety mechanism to detect faults (for instance, if a critical sensor pixel is not responding, the system can alert or enter a safe state). For RF compliance (if wireless comm is integrated) and EMC, standards regulate emissions in vehicles - a single tightly integrated module can be easier to shield and filter than multiple distributed ones.

[0112] Consumer Electronics and Eye Safety: In consumer products, standards would cover devices like AR glasses, smartphones, etc. While we mainly discuss LEDs, the same driver could potentially control low-power lasers. For battery-powered consumer items, having an energy-harvesting capable array could also indirectly help with compliance to battery regulations (since it can extend battery life, fewer charging cycles, etc., though that’s more of a user benefit than a regulatory requirement).

Claims

CLAIMS1. A multifunctional microdevice system, comprising:(a) an array of first-type microdevices disposed on a substrate and connected to a microdriver via row and column interconnects;(b) an array of second-type microdevices disposed on the same substrate and connected to the microdriver via at least a subset of the same row and column interconnects;(c) wherein the microdriver is configured to selectively control and / or read out both the first-type and the second-type microdevices via a time-multiplexed, shared driving and sensing scheme; and(d) wherein the second-type microdevices are fewer in number than the first-type microdevices per microdriver unit.

2. A method of operating a multifunctional microdevice array, comprising the steps of:(a) addressing a first array of microdevices that are microLED’s through a row-column matrix to emit light or perform actuation functions using a microdriver;(b) addressing a second array of microdevices of a different functional type through the same or overlapping row-column matrix to perform sensing or modulation functions; and(c) performing time-multiplexed control of the first and second arrays via the microdriver such that display, sensing, modulation, and / or energy harvesting are conducted in an interleaved cycle.

3. The system of claim 1, wherein the first-type microdevices are micro light-emitting diodes (microLEDs), and the second-type microdevices are selected from: biosensors, photodetectors, electrochromic elements, solar cells, or thin-film sensors.

4. The system of claim 1, wherein the microdriver is configured to drive the first-type microdevices in a row-sequential, column-sequential, or fixed pattern mode.

5. The system of claim 1, wherein the second-type microdevices include solar cells that provide ambient energy harvesting and also function as sensors for biometric or environmental input.

6. The system of claim 1, wherein the second-type microdevices include electrochromic elements configured to modulate transparency or color based on microdriver control.

7. The system of claim 1, wherein the microdriver further comprises logic circuitry configured to:(a) receive input from the second-type microdevices; and(b) adaptively adjust the operation of the first-type microdevices based on said input.

8. The system of claim 1, wherein the substrate is flexible and comprises a polymeric or glass material, and wherein the row and column interconnects are made from transparent conductive materials selected from indium tin oxide, silver nanowires, or graphene.

9. The system of claim 1, wherein the microdriver is a CMOS integrated circuit bonded to the substrate via flip-chip, wirebond, or fan-out packaging methods.

10. The system of claim 1, wherein the first-type and second-type microdevices are fabricated through heterogeneous integration or monolithic deposition on a shared backplane.

11. The system of claim 1, further comprising:(a) a communication interface selected from SPI, FC, UART, or MIPI; and(b) a local memory and processing unit configured to process signals from the second-type microdevices and to transmit the data through the communication interface.

12. The system of claim 1, wherein multiple such arrays are interconnected via daisy chain, shared row / column buses, or a network topology to form a modular, scalable surface with unified control.

13. The system of claim 1, wherein the multifunctional array is configured for use in an augmented reality or smart glass system, and the second-type microdevices comprise electrochromic dimming layers and eye-tracking photodetectors.

14. The system of claim 1, wherein the multifunctional array is configured as part of a wearable medical device, and the second-type microdevices comprise biosensors selected from temperature, pulse oximetry, and glucose detection elements.

15. The system of claim 1, wherein the multifunctional array is embedded into an automotive surface.

16. The system of claim 1, wherein the microdriver is configured to operate in a time- multiplexed mode comprising sequential:(a) programming of a first array of microdevices;(b) driving of the first array and a second array of microdevices;(c) programming of the second array; and(d) sensing from one or more sensor devices, within a predefined frame interval.

17. The system of claim 16, wherein the time-multiplexed operation is structured such that no more than one of programming, driving, or sensing occurs on the same row or column line at any given time.

18. The system of claim 16, wherein the microdriver applies drive and readout voltages in a non-overlapping sequence to avoid electrical and optical interference between display and sensing operations.

19. The system of claim 1, wherein the multifunctional array is partitioned into a plurality of independently addressable segments, each segment comprising a subset of first-type and second-type microdevices.

20. The system of claim 19, wherein each segment is operable in a random-access mode, allowing independent and asynchronous execution of at least one of:(a) programming of first-type microdevices;(b) programming of second-type microdevices;(c) driving of first-type and second-type microdevices; and(d) sensing from integrated sensors.

21. The system of claim 19, wherein each segment comprises one or more dedicated microdrivers configured to locally control programming, driving, or sensing operations.

22. The system of claim 20, wherein at least one segment operates in a time-sequential mode and at least one other segment operates in a random-access mode concurrently.

23. The system of claim 19, wherein each column in the array is configured to support only one of programming, driving, or sensing at a given time to prevent signal contention.

24. A multifunctional display system comprising a microLED substrate and integrated microsensors forming a unified display hub wherein the display surface is divided into multiple zones with each of these zones embedded with a dedicated set of microsensors and microLED display elements, and each zone configured for dedicated sensing or visual tasks.

25. The system of claim 24, wherein said zones overlap and share both sensing and display functionalities.

26. The system of claim 24, wherein the microsensors include at least one of: optical sensors for visible, ultraviolet, or infrared wavelengths, vibration sensors, impact sensors, and microphone arrays.

27. The system of claim 26, wherein the Al engine correlates data across sensor modalities to infer environmental or user context.

28. The system of claim 26, wherein display zones can dynamically switch between display and sensing roles.

29. The system of claim 24, wherein the display supports simultaneous interaction by multiple users.

30. The system of claim 29, wherein the Al engine differentiates users based on sensor fusion including spatial, acoustic, thermal, or vibration data.

31. The system of claim 29, wherein user identity is determined based on voice profile, touch pattern, or biometric cue.

32. The system of claim 29, wherein display functionality is dynamically reassigned based on interaction context.

33. The system of claim 24, wherein user interaction sources are localized using fusion of microphone, IR, visible, and vibration sensor data.

34. The system of claim 33, wherein the data processor sends targeted commands to external control units based on user input.

35. The system of claim 1, wherein display and sensor integration reduces space and assembly complexity.

36. The system of claim 1, wherein additional features are enabled through mass microsensor integration.

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