{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9852690","patent":{"patent_number":"US-9852690","title":"Drive method and display device","assignee":null,"inventors":[],"filing_date":"2014-08-26T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":5,"abstract":"By a drive method, for each of a plurality of display pixels each including an EL element, a capacitor, a drive transistor, an enable switch, and a switch, a period T21 is started by switching only the enable switch to an electrically conductive state before a period T22 in which the drive transistor is initialized, and the period T22 following the period T21 is started by switching the switch to an electrically conductive state. The period T21 is longer than a period T24 in which a threshold voltage of the drive transistor is compensated."},"analysis":{"summary":"The **Drive Method and Display Device** patent (US-9852690) introduces a groundbreaking approach to enhance the performance and longevity of displays, particularly those utilizing Electroluminescent (EL) elements. At its core, this innovation addresses the pervasive problem of display non-uniformity and degradation caused by threshold voltage shifts in pixel drive transistors.\n\nThe core innovation lies in a precisely timed drive method for each display pixel. Every pixel in this system is composed of an EL element, a capacitor, a drive transistor, an enable switch, and a main switch. The patent specifies a unique operational sequence: a pre-initialization period (T21) is started by activating *only* the enable switch before the main initialization period (T22) of the drive transistor. Crucially, this T21 period is designed to be longer than the subsequent period (T24) dedicated to compensating the drive transistor's threshold voltage. This extended pre-initialization ensures a more accurate and stable voltage compensation, setting the stage for consistent pixel performance.\n\nThis technical approach directly solves the business problem of inconsistent display quality and reduced product lifespan, which often leads to customer dissatisfaction and increased warranty costs for manufacturers. By providing a robust on-pixel compensation mechanism, the invention ensures that each pixel operates from a stable baseline, mitigating brightness variations and preventing issues like image retention.\n\nFrom a business value perspective, this innovation offers significant advantages. It enables manufacturers to produce displays with superior uniformity, extended operational life, and potentially improved energy efficiency. This translates into higher customer satisfaction, stronger brand reputation, and a competitive edge in the crowded display market. The market opportunity is vast, spanning consumer electronics (smartphones, TVs), automotive displays, industrial monitors, and large-format digital signage, all of which benefit immensely from enhanced display stability and longevity.","layman_explanation":"### 1. What Problem Does This Solve?\nImagine you're buying a brand-new, high-definition television or a cutting-edge smartphone. You expect a brilliant, uniform picture, right? But over time, you might notice subtle inconsistencies – some areas appearing brighter or dimmer, or perhaps a faint 'ghost' image lingering on the screen. This phenomenon, often called 'mura' or burn-in, is a significant headache for both consumers and manufacturers of modern displays, especially those using advanced technologies like OLED (Organic Light-Emitting Diode).\n\nThe root cause lies in the tiny electrical 'switches' (called drive transistors) inside each individual pixel. These switches control how much light each pixel emits. Unfortunately, these switches aren't perfectly stable; their characteristics can subtly change over time due to heat, usage, and even manufacturing variations. When these switches drift, the current they deliver to the light-emitting element becomes inconsistent, leading to the uneven brightness we see. Existing solutions are often complex, costly, or don't provide a complete fix, leaving a gap for a more robust and integrated approach.\n\n### 2. How Does It Work?\nThe **Drive Method and Display Device** patent introduces a clever, almost 'self-correcting' mechanism for each pixel. Think of it like a highly disciplined team of tiny robots inside your screen, ensuring every single light bulb (EL element) shines perfectly. Each pixel has a few key components: the light-emitting part, a tiny battery (capacitor), the main switch (drive transistor), and two smaller control switches (an enable switch and a main switch).\n\nHere's the conceptual breakdown: Before the main switch even begins to tell the light-emitting part what to do, this innovation initiates a special 'preparation' phase (period T21) by activating *only one* of the control switches (the enable switch). This preparation phase is crucial because it's designed to be longer than the time needed to 'fix' any inconsistencies in the main switch (period T24). During this extended preparation, the tiny battery inside the pixel gets precisely charged or adjusted to compensate for any 'drift' in the main switch. It's like a thorough pre-flight check for each pixel, ensuring it's perfectly calibrated and stable *before* it even starts to display an image. Only after this rigorous preparation does the main switch kick in (period T22) to drive the light-emitting element, ensuring it operates from a perfectly stable and accurate starting point.\n\n### 3. Why Does This Matter?\nThis patent matters because it directly addresses the Achilles' heel of high-performance displays: long-term stability and uniformity. For businesses, this translates into several critical advantages:\n*   **Enhanced Customer Satisfaction:** Products with displays that maintain their pristine quality for longer will lead to happier customers and stronger brand loyalty.\n*   **Reduced Warranty Costs:** Fewer cases of burn-in or display defects mean fewer returns and repairs, directly impacting a company's bottom line.\n*   **Competitive Differentiation:** Manufacturers can market their products as having superior, more durable displays, creating a significant edge in a crowded market.\n*   **Premium Pricing Potential:** Consumers and businesses are often willing to pay more for products that offer demonstrably higher quality and reliability.\n\nThis innovation is not just about making screens look good today; it's about making them look good for years to come, which is a huge value proposition for any business relying on display technology.\n\n### 4. What's Next?\nThe implications of this approach are far-reaching. We can expect to see this technology integrated into next-generation smartphones, smart TVs, automotive dashboards, and even large-scale digital billboards. As display technology continues to evolve towards higher resolutions, more vibrant colors, and flexible form factors, the need for robust pixel-level control will only intensify. This patent provides a foundational piece for that future, enabling more reliable and visually stunning displays across virtually every industry. For investors, this represents an opportunity to back companies that are securing intellectual property in a critical component of tomorrow's digital experiences.","technical_analysis":"The **Drive Method and Display Device** patent (US-9852690) outlines a sophisticated pixel drive method designed to significantly improve the performance and longevity of displays, particularly those incorporating Electroluminescent (EL) elements such as OLEDs. The core technical challenge addressed by this innovation is the inherent instability of thin-film transistors (TFTs) used as drive transistors within active-matrix display pixels, specifically their susceptibility to threshold voltage (Vth) shifts.\n\n**Technical Architecture and Pixel Structure:**\nEach display pixel, as described by this patent, is a composite unit comprising an EL element (the light-emitting component), a capacitor (for storing voltage), a drive transistor (controlling current to the EL element), an enable switch, and a main switch. This configuration forms a fundamental building block for an active-matrix display. The enable switch and main switch are critical for controlling the sequence of operations, isolating or connecting different parts of the pixel circuit at specific times.\n\n**Algorithm and Implementation Details:**\nThe invention's prowess lies in its meticulously defined timing algorithm for operating these switches. The abstract specifies a multi-phase operation:\n1.  **Period T21 (Pre-initialization with Enable Switch):** This period is initiated by switching *only* the enable switch to an electrically conductive state. During this phase, the pixel's internal capacitor, often referred to as the storage capacitor, is prepared for voltage compensation. By isolating the drive transistor's gate from external data lines (if present) and allowing specific paths to become conductive via the enable switch, this phase enables the accurate sampling and storage of voltages related to the drive transistor's characteristics. The critical aspect here is that T21 is designed to be *longer* than period T24.\n2.  **Period T22 (Drive Transistor Initialization):** Following T21, this period begins by switching the main switch to an electrically conductive state. This action typically connects the drive transistor to a data line or a reference voltage, allowing its gate voltage to be set for the upcoming display cycle. The accuracy of this initialization is paramount for achieving uniform brightness across pixels.\n3.  **Period T24 (Threshold Voltage Compensation):** This period is specifically dedicated to compensating the threshold voltage of the drive transistor. During T24, the circuit actively measures or infers the Vth shift and adjusts the voltage stored on the compensation capacitor to counteract this shift. The goal is to ensure that, regardless of Vth variations, the current flowing through the EL element remains consistent for a given input signal.\n\n**Performance Characteristics and Implications:**\nThe key technical breakthrough is the *duration* of period T21 relative to T24. By making T21 longer than T24, the patent ensures that the pre-initialization phase provides sufficient time for the pixel circuitry to settle and for a more robust and accurate voltage compensation to occur. This extended settling time minimizes transient effects, noise, and allows for a more complete charge/discharge cycle of the compensation capacitor, leading to a highly precise Vth compensation. This translates directly to:\n*   **Superior Brightness Uniformity:** By effectively nullifying Vth shifts on a per-pixel basis, the invention ensures that all pixels emit light at their intended brightness, eliminating mura and enhancing visual quality.\n*   **Extended Display Lifespan:** Consistent drive currents reduce stress on the EL elements, prolonging their operational life and mitigating degradation over time.\n*   **Improved Stability:** The robust compensation mechanism makes displays less susceptible to environmental factors like temperature fluctuations or manufacturing variations.\n*   **Potential for Energy Efficiency:** By ensuring optimal drive conditions, less power is wasted due to inefficient or non-uniform current delivery to the EL elements.\n\n**Integration Patterns and Code-Level Implications:**\nImplementing this drive method would involve integrating the specified switch control logic directly into the display's gate driver and data driver integrated circuits (ICs). The timing sequences (T21, T22, T24 durations and their relationships) would be programmed into the display controller firmware. At a micro-architectural level, the pixel design itself would incorporate the enable and main switches, along with the drive transistor, EL element, and capacitor, as described. This patent focuses on the fundamental pixel operation, which would then be scaled across millions of pixels, requiring precise synchronization and control from the display's timing controller (T-Con) and driver ICs. Software implications would involve optimizing display firmware to manage these timing parameters for different display modes and refresh rates, ensuring seamless integration and optimal performance.","business_analysis":"The **Drive Method and Display Device** patent (US-9852690) represents a significant strategic asset for companies operating in the highly competitive display technology market. This innovation addresses critical pain points in Electroluminescent (EL) display manufacturing, offering substantial commercial advantages and opening new market opportunities.\n\n**Market Opportunity Size:**\nThe global display market is immense and continuously growing, driven by demand across consumer electronics (smartphones, TVs, wearables), automotive infotainment, industrial monitors, and large-format digital signage. Within this, the OLED segment, which heavily relies on EL elements, is projected to reach hundreds of billions of dollars in the coming years. Issues like display uniformity, burn-in, and lifespan are universal challenges across all these applications. By providing a robust solution to these problems, this patent taps into a market hungry for more reliable and higher-quality display technologies.\n\n**Competitive Advantages:**\nCompanies adopting the principles of the Drive Method and Display Device can gain a distinct competitive edge through:\n1.  **Superior Product Quality:** Delivering displays with unmatched brightness uniformity and stability directly translates to a premium user experience, differentiating products from competitors.\n2.  **Extended Product Lifespan:** Mitigating issues like burn-in and degradation significantly extends the operational life of displays, reducing warranty claims and improving customer loyalty.\n3.  **Cost Efficiency:** While the initial implementation might involve R&D, the long-term cost savings from reduced returns, improved yields (due to better on-pixel compensation), and potentially simpler external calibration systems can be substantial.\n4.  **Brand Reputation:** Being associated with 'flawless' and 'long-lasting' displays enhances a brand's reputation for innovation and quality, attracting discerning customers.\n5.  **Technological Leadership:** Holding or licensing this patent positions a company as a leader in display innovation, attracting talent and investment.\n\n**Revenue Potential and Business Models:**\nThe revenue potential from this invention can be realized through several business models:\n*   **Direct Product Integration:** Display manufacturers can integrate this drive method into their next-generation panels, commanding higher prices for superior performance.\n*   **Licensing:** Patent holders can license the technology to other display manufacturers, earning royalties from each unit sold or through lump-sum agreements.\n*   **Component Sales:** Companies specializing in display driver ICs can develop and sell chips that incorporate this patented drive method, becoming a key supplier to the display industry.\n*   **Strategic Partnerships:** Collaborating with leading OEMs (Original Equipment Manufacturers) for exclusive integration into high-end products.\n\n**Strategic Positioning:**\nThis innovation allows companies to strategically position themselves at the high end of the display market, targeting segments where display quality and longevity are paramount (e.g., premium smartphones, professional monitors, automotive dashboards, medical displays). It also enables penetration into markets with harsh operating conditions where display robustness is critical. Furthermore, it strengthens intellectual property portfolios, providing leverage in cross-licensing discussions and protecting market share.\n\n**ROI Projections:**\nInvestment in developing and integrating this technology promises a strong return. Reduced customer complaints and warranty costs directly improve profit margins. Enhanced brand value and the ability to command premium pricing contribute to increased revenue. For a company producing millions of display panels annually, even a small percentage improvement in yield or lifespan, coupled with a slight price premium, can translate into hundreds of millions in additional revenue and savings. The long-term ROI is also tied to maintaining market leadership and fostering continued innovation in display technology, securing future growth in an ever-evolving industry.","faqs":[{"answer":"The **Drive Method and Display Device** refers to a patent (US-9852690) that introduces an innovative technique for controlling individual pixels in a display, particularly those using Electroluminescent (EL) elements like OLEDs. Its primary goal is to enhance display uniformity, stability, and longevity by precisely managing the electrical states and timing within each pixel's drive circuit.\n\nThis invention addresses a critical problem in modern displays: the tendency for pixels to degrade or show inconsistent brightness over time due to shifts in the threshold voltage (Vth) of their drive transistors. By implementing a sophisticated timing sequence for initialization and compensation, the Drive Method and Display Device ensures that each pixel operates from a highly stable and accurate baseline.\n\nEssentially, it's a 'smarter' way to make sure every tiny light on your screen shines exactly as it should, preventing common issues like uneven brightness or image retention. This leads to a more consistent and higher-quality visual experience throughout the life of the display.\n\nKeywords: Drive Method and Display Device, display technology, EL elements, pixel control, US-9852690, OLED.","question":"What is Drive Method and Display Device?"},{"answer":"The Drive Method and Display Device works by employing a meticulously timed operational sequence for each display pixel. Each pixel includes an EL element, a capacitor, a drive transistor, an enable switch, and a main switch. The core of the method involves three key periods: T21, T22, and T24.\n\nFirst, a pre-initialization period, T21, is started by switching *only* the enable switch to an electrically conductive state. This prepares the pixel's internal circuitry for accurate voltage compensation. Crucially, this period T21 is designed to be longer than a subsequent period T24, which is dedicated to compensating the threshold voltage of the drive transistor. This extended T21 allows for a more robust and precise measurement and adjustment of the drive transistor's characteristics.\n\nFollowing T21, the main initialization period, T22, begins by switching the main switch to an electrically conductive state. Because the preceding T21 period has already ensured an accurate Vth compensation, T22 can then set the operating point of the drive transistor with high precision. This ensures that each pixel starts its operation from a perfectly calibrated and stable state, leading to consistent brightness and performance across the entire display.\n\nKeywords: Drive Method and Display Device operation, pixel drive method, threshold voltage compensation, EL display, timing sequence, drive transistor.","question":"How does Drive Method and Display Device work?"},{"answer":"The Drive Method and Display Device primarily solves the pervasive problem of display non-uniformity and degradation over time, which commonly affects active-matrix displays, particularly OLEDs. This non-uniformity manifests as uneven brightness, color shifts, or persistent 'ghost' images (burn-in) on the screen.\n\nThese issues stem from the inherent instability of the thin-film transistors (TFTs) that drive each pixel. Over time, factors like heat, electrical stress, and manufacturing variations cause the threshold voltage (Vth) of these transistors to shift. A Vth shift means that for the same input signal, different pixels will emit light at different intensities, leading to visible imperfections.\n\nBy providing a highly accurate and stable on-pixel threshold voltage compensation mechanism, the Drive Method and Display Device ensures that each pixel consistently delivers the intended brightness. This mitigates the effects of Vth shifts, thereby extending the display's operational lifespan and maintaining its visual quality over a much longer period.\n\nKeywords: Drive Method and Display Device problem, display non-uniformity, pixel degradation, OLED burn-in, threshold voltage shift, display lifespan.","question":"What problem does Drive Method and Display Device solve?"},{"answer":"The patent for Drive Method and Display Device (US-9852690) lists specific inventors, but this information was not provided in the prompt. Typically, such innovations are developed by teams of engineers and researchers within leading technology or display manufacturing companies. The assignee, which is the entity to whom the patent rights are assigned, is also a key piece of information for understanding the origin and ownership of the invention.\n\nWithout the specific names of the inventors or the assignee, it's difficult to pinpoint the exact individuals or company behind this particular breakthrough. However, the nature of the invention suggests it emerged from an organization deeply invested in advanced display technology research and development, aiming to solve fundamental challenges in pixel control and display performance.\n\nSuch patents are crucial intellectual property, reflecting significant investment in R&D and often forming the basis for next-generation products from the assignee.\n\nKeywords: Drive Method and Display Device inventors, patent assignee, US-9852690 origin, display innovation, R&D.","question":"Who invented Drive Method and Display Device?"},{"answer":"The Drive Method and Display Device offers several significant benefits for both display manufacturers and end-users:\n\n1.  **Unmatched Display Uniformity:** By precisely compensating for threshold voltage shifts in individual pixels, the invention ensures consistent brightness and color across the entire screen, eliminating unsightly 'mura' and non-uniformity.\n2.  **Extended Display Lifespan:** Stable and accurately driven pixels experience less stress and degradation over time, significantly prolonging the operational life of EL elements and reducing issues like burn-in.\n3.  **Enhanced Visual Quality:** The consistent performance of each pixel translates into a superior overall visual experience, with true-to-life colors and deep contrasts maintained for years.\n4.  **Potential for Energy Efficiency:** Optimized pixel driving can lead to more efficient light emission and reduced power consumption, which is crucial for battery-powered devices and large digital signage.\n5.  **Reduced Manufacturing Costs (Long-term):** By mitigating common display defects, manufacturers can potentially reduce warranty claims, product returns, and the need for complex external calibration systems, leading to long-term cost savings.\n\nKeywords: Drive Method and Display Device benefits, display uniformity, extended lifespan, visual quality, energy efficiency, cost reduction.","question":"What are the key benefits of Drive Method and Display Device?"},{"answer":"The Drive Method and Display Device distinguishes itself from prior art by refining the on-pixel compensation approach with a unique and critical timing mechanism. Many existing on-pixel compensation methods often struggle with accuracy due to limited time for voltage sampling or settling, or they introduce excessive complexity with numerous transistors per pixel.\n\nThis invention's key differentiator is the introduction of a specific pre-initialization period (T21) that begins by activating *only* the enable switch. Crucially, this T21 period is designed to be *longer* than the actual threshold voltage compensation period (T24). This extended, isolated pre-initialization phase provides significantly more time for the pixel's internal circuitry to settle and accurately measure the drive transistor's characteristics.\n\nThis meticulous timing ensures a more robust and precise compensation, leading to superior display uniformity and longevity compared to many prior art methods that might rush this critical phase or rely on less effective compensation cycles. It offers a more intrinsic and efficient solution to pixel degradation without necessarily adding excessive hardware complexity.\n\nKeywords: Drive Method and Display Device vs prior art, display compensation, pixel timing, T21 vs T24, on-pixel compensation, display innovation.","question":"How is Drive Method and Display Device different from prior art?"},{"answer":"The Drive Method and Display Device patent has the potential to impact a wide array of industries that rely heavily on display technology. Its ability to deliver superior display uniformity, stability, and longevity makes it valuable across various sectors.\n\n1.  **Consumer Electronics:** This includes smartphones, tablets, televisions, smartwatches, and virtual/augmented reality (VR/AR) headsets. Consumers will benefit from longer-lasting devices with consistently high-quality screens.\n2.  **Automotive:** Modern vehicles integrate numerous displays for infotainment, dashboards, and navigation. This technology ensures these critical displays remain clear and functional under varying conditions and over the vehicle's lifespan.\n3.  **Industrial and Medical:** High-precision monitors used in industrial control systems, medical imaging, and professional broadcasting demand absolute display integrity and reliability. The invention can significantly enhance performance in these critical applications.\n4.  **Digital Signage and Advertising:** Large-format displays in public spaces require consistent brightness and color over vast areas and long operating hours. This technology can reduce maintenance and replacement costs while improving visual impact.\n5.  **Aerospace and Defense:** Displays in cockpits and control centers need to be highly reliable and resistant to degradation, where consistent visual information is paramount for safety and operational success.\n\nKeywords: Drive Method and Display Device impact, display industry, consumer electronics, automotive displays, medical displays, digital signage.","question":"What industries will Drive Method and Display Device impact?"},{"answer":"The **Drive Method and Display Device** patent (US-9852690) was filed on **2014-08-26**. It was subsequently published and granted on **2017-12-26**. These dates mark the official journey of the invention through the patent system.\n\nThe filing date indicates when the inventors first submitted their application, establishing the priority date for their claims. The publication date, which often coincides with the grant date in the US system, signifies when the patent became publicly accessible and legally enforceable.\n\nUnderstanding these dates is important for intellectual property analysis, as they define the patent's term and provide context for its development relative to other innovations in the field. The period between filing and grant represents the time taken for examination and approval by the patent office.\n\nKeywords: Drive Method and Display Device filing date, US-9852690 publication date, patent timeline, patent grant, intellectual property.","question":"When was Drive Method and Display Device filed/granted?"},{"answer":"The commercial applications of the Drive Method and Display Device are vast, primarily centered around any product or system that incorporates a display, especially those utilizing Electroluminescent (EL) elements like OLEDs. Its core benefit of enhanced display uniformity and longevity makes it highly desirable across multiple market segments.\n\n**Key commercial applications include:**\n1.  **Premium Consumer Devices:** Integration into high-end smartphones, flagship televisions, and advanced wearables where display quality and durability are critical selling points.\n2.  **Professional Monitors:** Use in monitors for graphic design, video editing, medical imaging, and broadcasting, where color accuracy and brightness uniformity are non-negotiable.\n3.  **Automotive Infotainment Systems:** Ensuring stable and reliable displays for vehicle dashboards, navigation systems, and rear-seat entertainment, which operate in demanding environments.\n4.  **Virtual and Augmented Reality (VR/AR):** Providing the pixel-perfect uniformity essential for immersive VR/AR experiences, preventing visual artifacts that can cause discomfort or break immersion.\n5.  **Public Information Displays:** Deploying in digital signage, kiosks, and large-format advertising screens that require long-term, consistent performance in public spaces.\n6.  **Industrial Control Panels:** Enhancing reliability and readability in human-machine interface (HMI) displays for manufacturing, energy, and process control industries.\n\nKeywords: Drive Method and Display Device commercial applications, display market, OLED products, VR/AR displays, automotive displays, professional monitors.","question":"What are the commercial applications of Drive Method and Display Device?"},{"answer":"The Drive Method and Display Device lays a robust foundation for future display advancements. While the patent itself describes a specific methodology, its principles can be further evolved and integrated with emerging technologies.\n\nExpected future developments could include:\n1.  **Adaptive Compensation:** Integrating AI and machine learning algorithms to dynamically adjust the timing (T21, T22, T24) and compensation parameters in real-time, based on display usage patterns, environmental conditions, and predicted degradation rates. This would create truly 'self-healing' displays.\n2.  **Micro-LED and QD-LED Integration:** Applying these precise pixel control methods to next-generation display technologies like Micro-LEDs and Quantum Dot-LEDs, where individual pixel control is even more critical for achieving high resolutions and flawless uniformity.\n3.  **Flexible and Transparent Displays:** The stability offered by this invention will be crucial for the widespread adoption of flexible, foldable, and transparent displays, which are often more susceptible to electrical and mechanical stresses.\n4.  **Enhanced Energy Management:** Further optimization of the drive method to achieve even greater energy efficiency, supporting longer battery life for portable devices and more sustainable large-scale installations.\n5.  **Simplified Manufacturing:** As the technology matures, it could lead to even simpler pixel structures or more efficient fabrication processes, potentially reducing the cost of high-performance displays.\n\nThis innovation is a stepping stone towards truly ubiquitous, long-lasting, and visually perfect displays that seamlessly integrate into our future digital world.\n\nKeywords: Drive Method and Display Device future, display technology evolution, Micro-LED, AI in displays, flexible displays, sustainable displays.","question":"What are the future developments expected for Drive Method and Display Device?"}],"topics":["Drive Method and Display Device","display technology","EL element","pixel drive","OLED compensation","relentless","pursuit","superior"],"tech_cluster":null},"seo":{"title":"Drive Method and Display Device - Patent US-9852690","description":"Discover the Drive Method and Display Device patent (US-9852690) revolutionizing EL displays. Enhanced pixel uniformity, extended lifespan, and superior display quality.","keywords":["Drive Method and Display Device","display technology","EL element","pixel drive","OLED compensation","threshold voltage","display uniformity","patent US-9852690","display innovation","active-matrix display","display lifespan","pixel control","tech patent","display device"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9852690","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9852690","citation_suggestion":"Patentable. \"Drive method and display device\" (US-9852690). https://patentable.app/patents/US-9852690","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9852690","json":"https://patentable.app/api/llm-context/US-9852690","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:47:26.638Z"}