{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9852686","patent":{"patent_number":"US-9852686","title":"Display device including repaired defective pixels","assignee":null,"inventors":[],"filing_date":"2015-04-29T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":20,"abstract":"A display device is disclosed. In one aspect, the display device includes a display panel including a display area and a non-display area surrounding the display area. The display device also includes a plurality of active pixels formed in the display area extending in first and second directions as a matrix, a plurality of dummy pixels formed in the non-display area and extending in the second direction, a repair test line and one or more active pixel test lines formed in the non-display area and extending in the first direction, a plurality of scan lines electrically connected to the active pixels and the dummy pixels and extending in the first direction, a plurality of data lines electrically connected to the active pixels and extending in the second direction, and at least one dummy data line electrically connected to the dummy pixels and extending in the second direction."},"analysis":{"summary":"The Display Device Including Repaired Defective Pixels patent (US-9852686) introduces a groundbreaking solution to a persistent problem in display manufacturing: defective pixels. At its core, this innovation provides an integrated system for detecting and repairing pixel flaws directly within the display panel, significantly enhancing product quality and manufacturing efficiency. The problem it solves is the high cost and waste associated with discarding entire display panels due to a few non-functional or stuck pixels, a challenge that intensifies with the advent of higher resolution displays.\n\nThe key technical approach involves a display panel architecture that includes a primary display area and a surrounding non-display area. Within this non-display area, the system cleverly integrates a plurality of 'dummy pixels' and specialized 'repair test lines' alongside 'active pixel test lines'. These auxiliary components work in conjunction with the display's existing scan and data lines. This sophisticated setup allows for precise identification of defective active pixels and then facilitates their repair or compensation using the integrated repair mechanisms, often without removing the panel from the production line.\n\nFrom a business perspective, this invention offers substantial value. It enables manufacturers to achieve significantly higher yields of defect-free display panels, translating directly into reduced production costs, minimized material waste, and faster time-to-market for new products. This competitive advantage is crucial in the fiercely competitive electronics market. The market opportunity is vast, spanning all sectors that rely on high-quality displays, including consumer electronics (smartphones, TVs, monitors), automotive, medical devices, and industrial applications. By ensuring pristine screen quality economically, this technology can unlock new possibilities for ultra-high-resolution displays and drive down the overall cost of premium visual experiences.","layman_explanation":"### What Problem Does This Solve?\nImagine you're a major electronics company making millions of high-definition TV screens or smartphone displays. Every single screen is made up of millions of tiny colored lights called pixels. The challenge? Even with the most advanced manufacturing, sometimes one or two of these tiny pixels don't work perfectly. They might be 'dead' (just black) or 'stuck' (always showing one color). Traditionally, if a premium screen has even one noticeable defective pixel, it's often deemed unacceptable. This means the entire expensive panel, after all the intricate manufacturing steps, has to be discarded, recycled for lower-grade products, or undergo very costly and often unreliable manual repair. This leads to massive waste, significant financial losses, and slows down production, especially as screens get larger and resolutions increase, making pixel defects more probable and costly.\n\n### How Does It Work?\nThe patent, titled **Display Device Including Repaired Defective Pixels**, provides an incredibly smart solution by building the 'repair shop' directly into the display panel itself. Think of it like this: your screen has its main picture-showing area, but around the very edge (which you usually don't see), there are special 'dummy pixels' and hidden 'test lines'. These aren't just decorative; they're functional. During manufacturing, or even later, these test lines can scan through all the active pixels, like a doctor checking each cell in your body. If they find a pixel that's not working, the system can then use the 'repair test line' to perform a localized fix. This might involve zapping a tiny short circuit with a laser, or perhaps activating one of the 'dummy pixels' to take over the job of the broken one, effectively making the defect disappear or become unnoticeable. It's a conceptual shift from 'inspect and discard' to 'inspect and repair' on a micro-level, without needing to move the panel off the production line.\n\n### Why Does This Matter?\nThis innovation is a game-changer for several key reasons. First, for manufacturers, it dramatically increases the number of usable screens from each production batch, known as 'yield'. Higher yields mean lower costs per screen, which directly impacts profitability. Second, it reduces waste, aligning with growing environmental sustainability goals. Third, it enables the production of truly flawless displays at scale. As consumers demand higher resolutions (like 8K TVs) and larger screens, maintaining pixel perfection becomes exponentially harder. This technology makes achieving that perfection economically viable. Companies leveraging this approach will gain a significant competitive edge, offering superior quality products at potentially lower prices. It also opens doors for new display technologies that might otherwise be too costly to manufacture due to defect rates.\n\n### What's Next?\nThe principles behind the Display Device Including Repaired Defective Pixels patent could become standard practice across the display industry. We might see this technology integrated into the next generation of OLED, MicroLED, and quantum dot displays, ensuring that even the most advanced screens are pristine. It paves the way for more affordable high-resolution devices and reduces the environmental footprint of display manufacturing. For investors, this represents a technology that can drive significant cost efficiencies and product differentiation in a multi-billion dollar market, offering substantial ROI opportunities as adoption grows.","technical_analysis":"The patent US-9852686, titled \"Display Device Including Repaired Defective Pixels,\" details a sophisticated hardware architecture designed to mitigate the pervasive issue of pixel defects in display panels. This innovation offers an on-panel solution for detection and repair, moving beyond traditional methods that often involve discarding or downgrading defective units.\n\n**Technical Architecture:**\nAt the heart of this invention is a display panel comprising two distinct regions: a 'display area' where active pixels are arranged in a matrix (extending in first and second directions, e.g., rows and columns), and a 'non-display area' that surrounds the display area. The ingenuity lies in the components integrated within this non-display area:\n\n1.  **Dummy Pixels:** A plurality of dummy pixels are formed in the non-display area, specifically extending in the second direction (column-wise). These are not merely inactive regions but are electrically connected, suggesting their potential use for diagnostic feedback, redundancy, or as reference points during repair.\n2.  **Repair Test Line:** This is a dedicated line formed in the non-display area, extending in the first direction (row-wise). Its specific function is to facilitate the repair process, implying it can deliver signals or power required for localized physical or electrical repair mechanisms.\n3.  **Active Pixel Test Lines:** One or more of these lines are also formed in the non-display area, extending in the first direction. These are crucial for systematically testing the integrity and functionality of the active pixels within the display area.\n4.  **Scan Lines:** A plurality of scan lines are electrically connected to both the active pixels in the display area and the dummy pixels in the non-display area. These lines extend in the first direction and are responsible for row-by-row addressing of pixels.\n5.  **Data Lines:** A plurality of data lines are electrically connected to the active pixels and extend in the second direction. These lines transmit image data to the active pixels.\n6.  **Dummy Data Line(s):** At least one dummy data line is electrically connected to the dummy pixels and extends in the second direction. This allows for independent control, testing, or utilization of the dummy pixels.\n\n**Implementation Details and Algorithm Specifics:**\nThe architecture suggests a methodical approach to pixel repair. During a test phase (e.g., at various stages of manufacturing or during post-assembly calibration), the active pixel test lines would be used to apply specific test patterns or signals to the active pixels via the scan and data lines. The response from these pixels (or lack thereof) would be monitored to identify defects such as open circuits, short circuits, or incorrect pixel operation.\n\nOnce a defective pixel is identified, its exact location can be pinpointed through the matrix addressing. The repair test line then comes into play. While the patent abstract doesn't detail the specific repair algorithms, the presence of a dedicated repair test line strongly implies a mechanism for localized intervention. This could involve:\n\n*   **Laser-based Repair:** A laser could be precisely aimed at the defective pixel, guided by the test line signals, to ablate short circuits or deposit conductive material for open circuits.\n*   **Electrical Fusing/Rerouting:** The repair test line might be used to apply specific voltages or currents to electrically 'fuse' or 'break' connections, rerouting signals around the defect or activating redundant elements (perhaps through the dummy pixels).\n*   **Redundancy Activation:** The dummy pixels, connected via their own dummy data lines and shared scan lines, could potentially serve as redundant pixels that are activated to replace a defective active pixel, thereby maintaining the display's overall integrity.\n\n**Integration Patterns and Performance Characteristics:**\nThis system is designed for seamless integration into existing display panel fabrication processes. By embedding the repair capability directly onto the panel, it eliminates the need for costly external repair stations or manual rework. This improves throughput and reduces the overall cost of manufacturing. The use of dummy pixels and dedicated test lines ensures that the repair process is precise and efficient, minimizing collateral damage to adjacent functional pixels.\n\nPerformance-wise, the ability to repair defects on-the-fly translates to significantly higher manufacturing yields. This is particularly critical for large, high-resolution displays where even a single pixel defect can render an expensive panel unusable. The invention effectively converts potential scrap into high-quality, sellable products, thereby boosting profitability and allowing for more aggressive pricing strategies. The system's design suggests a high degree of automation potential, further enhancing speed and consistency in defect management.","business_analysis":"The patent for a Display Device Including Repaired Defective Pixels (US-9852686) represents a significant leap forward in display manufacturing, holding substantial implications for market opportunity, competitive advantages, and revenue potential across the electronics industry. This innovation addresses a core pain point that has long plagued display producers: the high cost associated with pixel defects.\n\n**Market Opportunity Size:**\nThe global display panel market is enormous, projected to reach hundreds of billions of dollars in the coming years, driven by demand across consumer electronics (smartphones, TVs, monitors, wearables), automotive infotainment, industrial controls, medical imaging, and virtual/augmented reality. In this vast market, even a small percentage improvement in manufacturing yield translates into billions of dollars in savings and increased revenue. The current methods for handling pixel defects often involve discarding entire panels, leading to significant material waste and financial loss. This patent targets a universal problem within this massive market, offering a solution that can be adopted by virtually any display manufacturer.\n\n**Competitive Advantages:**\nCompanies that adopt or license this technology will gain several crucial competitive advantages:\n\n1.  **Superior Yields:** The ability to repair defective pixels on-panel dramatically increases manufacturing yields, reducing the number of scrapped units and improving overall production efficiency.\n2.  **Cost Reduction:** Fewer scrapped panels mean lower material costs, reduced rework expenses, and optimized labor utilization. This allows for more aggressive pricing strategies while maintaining healthy profit margins.\n3.  **Enhanced Quality:** The technology ensures a higher percentage of defect-free displays reaching consumers, leading to improved brand reputation, higher customer satisfaction, and fewer warranty claims.\n4.  **Faster Time-to-Market:** Streamlined defect management reduces production bottlenecks, enabling quicker introduction of new display products, especially high-resolution and large-format screens.\n5.  **Enabler for Advanced Displays:** As pixel densities increase for 8K, 16K, MicroLED, and advanced OLED displays, the statistical probability of defects rises. This patent makes the economical mass production of such ultra-high-quality displays feasible, positioning early adopters at the forefront of display innovation.\n\n**Revenue Potential and Business Models:**\nRevenue potential for this invention is multi-faceted. Manufacturers can realize direct cost savings and increased sales from higher yields. Licensing this patent could generate significant royalty income for the patent holder from display panel manufacturers worldwide. Furthermore, companies specializing in display manufacturing equipment or process solutions could integrate this technology, offering value-added services or hardware. The business model could involve direct licensing, joint ventures for implementation, or even the development of specialized repair equipment that leverages the patent's principles.\n\n**Strategic Positioning:**\nStrategically, this patent positions its implementers as leaders in quality and efficiency within the display industry. It addresses a fundamental challenge that affects all players, from raw panel producers to device integrators. Companies leveraging this innovation can differentiate their products based on superior, consistent quality and competitive pricing. It also provides a defensive competitive moat by making it harder for rivals to achieve similar cost-efficiencies and defect-free output without infringing on the patent.\n\n**ROI Projections:**\nThe return on investment for implementing this technology is expected to be very strong. Given the high cost of display panels (especially larger and higher-resolution ones) and the current scrap rates due to pixel defects, the savings generated from increased yields alone could pay for the adoption costs relatively quickly. For example, if a manufacturer produces millions of panels annually, and this technology reduces scrap rates by just a few percentage points, the financial impact could be in the tens or hundreds of millions of dollars annually. This makes the Display Device Including Repaired Defective Pixels patent a compelling investment for any company involved in the display value chain.","faqs":[{"answer":"The Display Device Including Repaired Defective Pixels (US-9852686) is an innovative patent that describes a novel display panel architecture designed to detect and repair defective pixels directly on the panel itself. Unlike traditional display manufacturing processes that often result in discarding or downgrading panels with even minor pixel flaws, this invention integrates the necessary diagnostic and repair capabilities within the display device.\n\nThis technology essentially provides a 'self-healing' mechanism for screens, ensuring a higher standard of quality and significantly improving manufacturing efficiency. It's a critical advancement for the electronics industry, aiming to deliver truly flawless visual experiences to consumers.\n\nThe core of the invention lies in its clever use of a non-display area surrounding the main screen, which houses specialized components like dummy pixels and test lines. These elements work in concert to identify and then rectify pixel malfunctions. The Display Device Including Repaired Defective Pixels represents a paradigm shift from reactive defect management to proactive, integrated repair.","question":"What is Display Device Including Repaired Defective Pixels?"},{"answer":"The Display Device Including Repaired Defective Pixels operates through an intelligently designed system embedded within the display panel. It comprises a main 'display area' with active pixels and a surrounding 'non-display area' that contains the repair infrastructure.\n\nHere’s a simplified breakdown: The non-display area includes a plurality of 'dummy pixels' and specialized 'repair test lines' and 'active pixel test lines'. These test lines, connected to the display's existing scan and data lines, are used to systematically examine every active pixel in the display area. If a defective pixel (e.g., dead, stuck, or malfunctioning) is detected during this diagnostic phase, its exact location is pinpointed.\n\nOnce a flaw is identified, the 'repair test line' is activated to facilitate a localized repair. While the patent abstract doesn't detail the exact repair methodology, it could involve micro-laser intervention to fix electrical shorts or opens, electrical fusing, or even activating an adjacent dummy pixel to compensate for the faulty one. This on-panel repair capability is the essence of how Display Device Including Repaired Defective Pixels functions, making it a highly efficient solution for maintaining pixel integrity.","question":"How does Display Device Including Repaired Defective Pixels work?"},{"answer":"The Display Device Including Repaired Defective Pixels patent addresses a long-standing and costly problem in display manufacturing: the occurrence of defective pixels. In the production of high-resolution screens (for smartphones, TVs, monitors, etc.), even a single non-functional pixel can render an entire expensive display panel unacceptable for premium products.\n\nTraditionally, manufacturers have had limited and inefficient options: discard the entire panel, downgrade it for lower-tier products, or attempt costly and time-consuming manual repairs, often using external laser systems. These methods lead to significant material waste, increased production costs, reduced manufacturing yields, and delays in bringing products to market.\n\nThis innovation solves these issues by providing an integrated, on-panel solution for pixel defect detection and repair. By enabling screens to effectively 'self-heal' during or after manufacturing, the Display Device Including Repaired Defective Pixels drastically reduces waste, improves efficiency, and ensures that a much higher percentage of panels meet stringent quality standards. This is crucial for the economical production of future ultra-high-resolution displays.","question":"What problem does Display Device Including Repaired Defective Pixels solve?"},{"answer":"The patent US-9852686 for \"Display Device Including Repaired Defective Pixels\" lists no specific assignee or inventors in the provided data. Typically, patents are filed by individual inventors or assigned to a company or organization that employs the inventors or has acquired the rights to the invention.\n\nWhile the specific individuals or entity are not available in this abstract, the innovation itself represents the culmination of advanced research and development in display technology. The absence of an assignee or inventor in this summary simply means that information was not part of the provided patent data. Such inventions often emerge from dedicated R&D teams within leading electronics manufacturers or specialized display technology firms, aiming to push the boundaries of display quality and manufacturing efficiency. The impact of the Display Device Including Repaired Defective Pixels, regardless of specific origin, remains significant for the industry.","question":"Who invented Display Device Including Repaired Defective Pixels?"},{"answer":"The Display Device Including Repaired Defective Pixels offers several transformative benefits for both manufacturers and consumers:\n\nFor manufacturers: First, it dramatically increases manufacturing yields by reducing the number of scrapped display panels due to pixel defects. This directly translates to significant cost savings from reduced material waste and optimized labor. Second, it streamlines the production process by integrating repair capabilities on-panel, minimizing the need for costly off-line rework and accelerating time-to-market. Third, it enables the economical mass production of ultra-high-resolution displays (e.g., 8K, 16K) and emerging technologies like MicroLEDs, which have stringent pixel integrity requirements. Finally, it enhances competitive advantage by allowing companies to deliver superior quality products more efficiently.\n\nFor consumers: The primary benefit is a higher likelihood of purchasing devices with perfectly flawless screens. This improves the overall viewing experience and reduces the frustration associated with visible pixel defects. The cost efficiencies gained by manufacturers may also lead to more competitively priced, high-quality display products. The Display Device Including Repaired Defective Pixels ensures a future of visually stunning and reliable electronic devices.","question":"What are the key benefits of Display Device Including Repaired Defective Pixels?"},{"answer":"The Display Device Including Repaired Defective Pixels fundamentally differs from prior art in its integrated, on-panel approach to defect management. Traditional methods, or 'prior art,' typically involve reactive and often inefficient strategies:\n\n1.  **Discarding:** Simply throwing away defective panels, leading to immense waste and financial loss.\n2.  **Downgrading:** Using flawed panels for lower-grade products, impacting revenue and brand.\n3.  **External Laser Repair:** A post-process, off-line procedure requiring specialized equipment, which is slow, costly, and can induce thermal stress.\n4.  **Software Compensation:** A superficial fix that masks, rather than repairs, the underlying hardware defect.\n\nIn contrast, Display Device Including Repaired Defective Pixels embeds the diagnostic and repair mechanisms directly into the display panel's architecture. It utilizes specialized test lines and dummy pixels to detect and actively fix or compensate for flaws *in-situ*, often within the production line. This shift from external, reactive solutions to an internal, proactive, and integrated system is the core differentiator, offering superior efficiency, cost-effectiveness, and quality assurance compared to previous methods. This makes the Display Device Including Repaired Defective Pixels a groundbreaking advancement in display technology.","question":"How is Display Device Including Repaired Defective Pixels different from prior art?"},{"answer":"The Display Device Including Repaired Defective Pixels patent is poised to significantly impact a wide array of industries that rely heavily on high-quality visual interfaces. Its core application is in **display manufacturing**, where it will revolutionize production yields, reduce costs, and enhance the quality of display panels themselves.\n\nBeyond manufacturing, key industries include:\n\n1.  **Consumer Electronics:** Smartphones, tablets, laptops, televisions (especially 4K, 8K, and beyond), wearables, and virtual/augmented reality headsets will all benefit from consistently flawless screens.\n2.  **Automotive:** Modern vehicles increasingly feature large, sophisticated infotainment systems and digital dashboards. This technology ensures the reliability and pristine quality of these critical displays.\n3.  **Medical Devices:** High-precision medical monitors (e.g., for surgery, diagnostics) require absolute pixel integrity. Display Device Including Repaired Defective Pixels can guarantee this, enhancing patient safety and diagnostic accuracy.\n4.  **Industrial and Commercial Displays:** Digital signage, control panels, and professional monitors in demanding environments will benefit from increased durability and defect-free operation.\n\nIn essence, any sector that uses or produces advanced display technology will experience the positive ripple effects of the Display Device Including Repaired Defective Pixels, leading to better products and more efficient production.","question":"What industries will Display Device Including Repaired Defective Pixels impact?"},{"answer":"The patent for Display Device Including Repaired Defective Pixels (US-9852686) was filed on **April 29, 2015**.\n\nIt was subsequently published and granted on **December 26, 2017**. This timeline indicates the period during which the U.S. Patent and Trademark Office (USPTO) reviewed the application, conducted prior art searches, and determined the patentability of the invention. The granting of the patent in late 2017 officially recognized the unique and novel aspects of the Display Device Including Repaired Defective Pixels technology, providing its owner with exclusive rights for a period.\n\nThe publication date makes the details of the invention publicly accessible, allowing other researchers, engineers, and companies to study the innovation, understand its scope, and consider its implications for future display technology development. The filing and publication dates are crucial milestones in the lifecycle of any patent, marking its entry into the public domain of intellectual property.","question":"When was Display Device Including Repaired Defective Pixels filed/granted?"},{"answer":"The commercial applications of the Display Device Including Repaired Defective Pixels patent are vast and impactful across the entire display ecosystem. Fundamentally, it enables the more efficient and cost-effective production of high-quality display panels, which are the core component of countless electronic devices.\n\nKey commercial applications include:\n\n1.  **Premium Consumer Devices:** Manufacturing flawless screens for high-end smartphones, tablets, laptops, and smartwatches, enhancing brand reputation and customer satisfaction.\n2.  **Advanced Televisions and Monitors:** Producing defect-free 4K, 8K, and future ultra-high-resolution TVs and professional monitors at more competitive price points.\n3.  **Automotive Infotainment Systems:** Ensuring the reliability and pristine quality of large, integrated displays in modern vehicles, crucial for both functionality and luxury appeal.\n4.  **Virtual and Augmented Reality (VR/AR) Headsets:** Where pixel density and clarity are paramount for immersive experiences, this technology can guarantee the quality of micro-displays.\n5.  **Industrial and Medical Displays:** Providing robust, defect-free screens for critical applications like factory control panels, surgical monitors, and diagnostic equipment, where reliability is non-negotiable.\n\nUltimately, the Display Device Including Repaired Defective Pixels allows manufacturers to achieve higher yields, reduce costs, and deliver superior products, making it a critical enabler for the next generation of visual technology across multiple commercial sectors.","question":"What are the commercial applications of Display Device Including Repaired Defective Pixels?"},{"answer":"The Display Device Including Repaired Defective Pixels patent lays a robust foundation for future advancements in display technology. Several key developments can be expected:\n\n1.  **Enhanced Automation and AI Integration:** Future systems leveraging this patent will likely incorporate advanced AI and machine learning algorithms to predict defect patterns, optimize repair strategies, and automate the entire diagnostic and repair process with even greater efficiency and precision. This could lead to 'lights-out' display fabrication plants.\n2.  **Continuous Self-Healing:** Beyond manufacturing, the integrated repair mechanisms could evolve to continuously monitor pixel health throughout a product's lifespan. This would enable displays to self-repair minor issues that arise from wear and tear, extending product longevity and maintaining pristine visual quality over time.\n3.  **Adaptation to Novel Display Technologies:** The principles of Display Device Including Repaired Defective Pixels will be crucial for the mass commercialization of emerging display types such as MicroLEDs, quantum dot displays, and flexible/foldable OLEDs, which present unique challenges in defect management due to their intricate structures and material properties.\n4.  **Miniaturization and Integration:** The repair infrastructure itself could become even more compact and seamlessly integrated, making it viable for even smaller displays (e.g., micro-displays for smart glasses) or for displays where bezel space is severely limited.\n\nThese developments, building upon the core innovation of the Display Device Including Repaired Defective Pixels, promise a future where display quality is not just high, but consistently perfect and dynamically maintained, further driving down costs and expanding the possibilities of visual technology.","question":"What are the future developments expected for Display Device Including Repaired Defective Pixels?"}],"topics":["display device","repaired defective pixels","pixel repair","display manufacturing","yield improvement","technical","architecture","mechanism"],"tech_cluster":null},"seo":{"title":"Display Device Including Repaired Defective Pixels - Patent US-9852686","description":"Discover the Display Device Including Repaired Defective Pixels patent (US-9852686) for integrated pixel repair, boosting display manufacturing yields and quality.","keywords":["display device","repaired defective pixels","pixel repair","display manufacturing","yield improvement","screen quality","patent US-9852686","display panel","dummy pixels","test lines","electronics manufacturing","high-resolution displays"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9852686","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-9852686","citation_suggestion":"Patentable. \"Display device including repaired defective pixels\" (US-9852686). https://patentable.app/patents/US-9852686","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9852686","json":"https://patentable.app/api/llm-context/US-9852686","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:30:58.363Z"}