{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9852685","patent":{"patent_number":"US-9852685","title":"Pixel circuit and driving method thereof, display apparatus","assignee":null,"inventors":[],"filing_date":"2014-09-26T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G","G09G"],"num_claims":13,"abstract":"There are provided a pixel circuit and a driving method thereof, and a display apparatus. The pixel circuit comprises: a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1) and a light emitting device (L). A gate of the first transistor (T1) is connected to a first control signal terminal (S1), and a first electrode thereof is connected to a data signal terminal (DATA); a gate of the second transistor (T2) is connected to a second electrode of the first transistor (T1), a first electrode thereof is connected to a second electrode of the third transistor (T3), and a second electrode thereof is connected to a first terminal of the light emitting device (L); a gate of the third transistor (3) is connected to a second control signal terminal (S2), and a first electrode thereof is connected to a first power supply signal terminal (ELVDD); one terminal of the storage capacitor (C1) is connected to the gate of the second transistor (T2), and the other terminal thereof is connected to the second electrode of the second transistor (T2); one terminal of a parasitic capacitor (C2) formed by the light emitting device is connected to the first terminal of the light emitting device (L), and the other terminal thereof is connected to a second terminal of the light emitting device (L); and the second terminal of the light emitting device (L) is further connected to a second power supply signal terminal (ELVSS). The pixel circuit can compensate for the threshold voltage drift of TFT effectively and rise display effect."},"analysis":{"summary":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** patent (US-9852685) introduces a groundbreaking solution to a persistent problem in modern display technology: threshold voltage drift in Thin-Film Transistors (TFTs). This drift commonly causes non-uniform brightness, image retention, and a reduced lifespan in high-performance displays, particularly Organic Light-Emitting Diode (OLED) panels.\n\nAt its core, this innovation presents a sophisticated pixel circuit comprising a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1), and a light-emitting device (L). The key technical approach lies in the ingenious connection of these components: the gate of the driving transistor (T2) is connected to the output of T1, and crucially, the storage capacitor C1 is placed between the gate and the second electrode of T2. This configuration enables an active compensation mechanism. During operation, C1 stores a voltage that effectively offsets the individual threshold voltage variations of T2. This ensures that a consistent and precise current is delivered to the light-emitting device, irrespective of the inherent drift in the TFT's characteristics.\n\nThe business value and applications of this technology are significant. By effectively compensating for Vth drift, the patent enables the production of display panels with superior uniformity, stability, and extended operational lifespans. This directly translates into enhanced user experience, reduced warranty costs for manufacturers, and stronger brand reputation in a highly competitive market. Applications span across premium consumer electronics such as smartphones, high-definition televisions, and advanced AR/VR systems, where visual fidelity and device longevity are paramount.\n\nThis invention presents a substantial market opportunity for display manufacturers to differentiate their products by offering unparalleled display quality and reliability. It addresses a fundamental engineering challenge, paving the way for more robust and visually consistent displays in the future, thereby setting a new standard for display apparatus performance.","layman_explanation":"## What Problem Does This Solve?\n\nImagine you've invested in a state-of-the-art television or a high-end smartphone with a beautiful, vibrant screen. Over time, you might notice subtle inconsistencies: some areas appear slightly dimmer or brighter, colors don't look as uniform, or perhaps you see faint 'ghost' images lingering. This degradation isn't just an aesthetic annoyance; it impacts the perceived quality and longevity of your expensive device. The root cause often lies in the tiny electronic switches, called Thin-Film Transistors (TFTs), that control each individual pixel on your screen. These TFTs can 'drift' over time, meaning the voltage required to turn them on changes slightly. This 'threshold voltage drift' leads to uneven current delivery to the pixels, causing the display to become inconsistent and eventually degrade faster. Existing solutions often involve complex external calibration or simply living with the gradual decline in quality.\n\n## How Does It Work?\n\nThe **Pixel Circuit and Driving Method Thereof, Display Apparatus** patent introduces a brilliant, in-pixel solution to this problem. Instead of trying to fix the issue from the outside, this invention integrates a smart compensation system directly within each pixel. Think of it like this: every tiny light-emitting pixel (like an OLED) now has its own miniature, intelligent power manager. This manager consists of three specialized transistors and a small 'memory' component called a storage capacitor. When a pixel is about to light up, this intelligent manager first 'learns' the exact characteristics of its primary driving transistor, including any drift. It then uses this information to adjust the voltage it applies, ensuring that the light-emitting device receives precisely the right amount of current, regardless of how much the driving transistor has 'drifted.' It's a continuous, self-correcting process that happens millions of times per second, ensuring every pixel performs optimally.\n\n## Why Does This Matter?\n\nThis innovation matters immensely for both consumers and businesses. For consumers, it means display apparatuses that maintain their pristine visual quality for a much longer period. No more worrying about uneven brightness or premature fading; your investment in a premium display will truly last. For businesses, particularly display manufacturers and consumer electronics brands, this patent offers a significant competitive advantage. They can now produce displays with superior uniformity and extended lifespans, leading to higher customer satisfaction, reduced warranty costs, and a stronger brand reputation. In a market where visual experience is paramount, offering a 'drift-free' or 'ultra-stable' display is a powerful differentiator. It also opens doors for more robust flexible and foldable display technologies, where maintaining consistency across dynamic surfaces is even more challenging.\n\n## What's Next?\n\nThe implications of this technology extend beyond current display formats. As the industry moves towards more complex and immersive visual experiences—from augmented reality glasses to truly seamless flexible screens—the need for perfectly uniform and stable pixel performance becomes even more critical. This innovation provides a foundational building block for these future display apparatuses. Expect to see this kind of advanced pixel-level compensation becoming a standard feature in high-end displays, driving market adoption and potentially influencing future display panel design and manufacturing processes. For investors, this represents a technology that can underpin the next generation of visual devices, offering long-term growth potential in a continuously expanding market.","technical_analysis":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** patent (US-9852685) addresses a critical challenge in active matrix display technology, specifically the threshold voltage (Vth) drift of Thin-Film Transistors (TFTs) that drive light-emitting devices like Organic Light-Emitting Diodes (OLEDs). Vth drift leads to non-uniform current delivery to individual pixels, resulting in brightness inconsistencies (mura), image retention, and reduced display lifespan.\n\n**Technical Architecture:**\nThis innovation proposes a pixel circuit comprising a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1), and a light-emitting device (L). The fundamental architecture is designed for in-pixel compensation:\n*   **T1 (Switching Transistor):** Gate connected to a first control signal (S1), first electrode to a data signal (DATA). It controls the input of the data signal into the compensation stage.\n*   **T2 (Driving Transistor):** This is the core element driving the light-emitting device. Its gate is connected to the second electrode of T1. Its first electrode is connected to the second electrode of T3. Its second electrode connects to the first terminal of L. T2's Vth drift is the primary target for compensation.\n*   **T3 (Switching Transistor):** Gate connected to a second control signal (S2), first electrode to a first power supply (ELVDD). It controls the connection of the power supply during specific phases.\n*   **C1 (Storage Capacitor):** One terminal connected to the gate of T2, the other to the second electrode of T2. This capacitor is crucial for storing the compensated voltage.\n*   **L (Light-Emitting Device):** The display element (e.g., OLED). Its first terminal connects to T2's second electrode. Its second terminal connects to a second power supply (ELVSS). The parasitic capacitor (C2) of L is also considered, with one terminal connected to L's first terminal and the other to its second terminal.\n\n**Implementation Details and Algorithm Specifics:**\nThe driving method typically involves at least two phases: a compensation/pre-charge phase and an emission phase.\n\n1.  **Compensation Phase:** During this phase, both S1 and S2 are activated. T1 turns ON, allowing the DATA signal to propagate. T3 also turns ON, connecting ELVDD to T2's source. With T2's gate connected to T1's output and its source to ELVDD (via T3), and C1 connected between T2's gate and drain, C1 charges up. The voltage across C1 stabilizes such that the voltage at the gate of T2 (Vgate_T2) is effectively DATA - Vth_T2, where Vth_T2 is the threshold voltage of T2. This means C1 stores a voltage that directly accounts for the Vth of the driving transistor, thereby 'compensating' for its individual characteristics.\n\n2.  **Emission Phase:** After the compensation phase, S1 and S2 are deactivated. T1 and T3 turn OFF. The voltage stored on C1 maintains the gate-source voltage (Vgs) of T2. Because Vgs is now adjusted by the stored compensated voltage, the current (I_L) flowing through T2 to the light-emitting device L becomes highly stable and less dependent on the intrinsic Vth variations of T2. This ensures uniform brightness and consistent performance across the entire pixel array.\n\n**Integration Patterns and Performance Characteristics:**\nThis pixel circuit and driving method can be integrated directly into the active matrix backplane of an OLED display. The logic for S1, S2, and DATA signals would be handled by external display drivers, synchronized to ensure proper compensation and emission cycles. The performance characteristics include:\n*   **High Uniformity:** Significant reduction in brightness non-uniformity across the display.\n*   **Enhanced Stability:** Consistent pixel luminance over extended operation times and varying environmental conditions.\n*   **Extended Lifespan:** Prevention of accelerated OLED degradation due to overdriving or underdriving caused by Vth drift.\n*   **Robustness:** Compensation for inherent manufacturing variations in TFTs.\n\n**Code-Level Implications (Conceptual):**\nWhile not directly involving traditional software code, the driving method requires precise timing control logic, often implemented in hardware (e.g., gate drivers, data drivers, timing controllers). The 'code' would manifest as highly optimized gate and data signal waveforms, ensuring accurate execution of the compensation and emission phases. Simulation tools (e.g., SPICE) would be crucial for validating circuit behavior and optimizing timing parameters to achieve the desired compensation effect and display performance.","business_analysis":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** patent (US-9852685) presents a compelling business proposition by directly addressing critical pain points in the high-growth display market, particularly for Organic Light-Emitting Diode (OLED) technology. The innovation's ability to compensate for Thin-Film Transistor (TFT) threshold voltage drift unlocks significant market opportunities and competitive advantages.\n\n**Market Opportunity Size:**\nThe global display market, valued at hundreds of billions of dollars, is continuously driven by demand for higher quality, more reliable screens across diverse applications. OLED technology, in particular, is experiencing rapid adoption in smartphones, smartwatches, high-end televisions, and increasingly in automotive displays, AR/VR headsets, and flexible electronics. The inherent challenge of Vth drift in TFTs has been a limiting factor, creating a substantial market for solutions that enhance display longevity and uniformity. This patent taps into this demand, offering a fundamental improvement that can capture significant value in premium and emerging display segments.\n\n**Competitive Advantages:**\nThis technology provides several distinct competitive advantages:\n1.  **Superior Product Quality:** Manufacturers adopting this invention can offer displays with unmatched brightness uniformity and color consistency over time, differentiating their products in a crowded market.\n2.  **Extended Product Lifespan:** By mitigating OLED degradation, the patent enables longer-lasting displays, reducing warranty claims and improving customer satisfaction and brand loyalty.\n3.  **Cost Efficiency:** While an advanced circuit, in-pixel compensation can potentially reduce the need for complex, external calibration systems or costly post-production adjustments, streamlining manufacturing processes and reducing overall costs.\n4.  **Enabling Future Technologies:** The robust compensation mechanism is crucial for the development and mass production of advanced display formats like flexible, foldable, and transparent displays, where maintaining pixel uniformity across complex form factors is even more challenging.\n\n**Revenue Potential and Business Models:**\nRevenue potential can be realized through various business models:\n*   **Licensing:** The patent holder can license the technology to major display panel manufacturers (e.g., Samsung Display, LG Display, BOE) for integration into their AMOLED production lines. This would generate significant royalty income.\n*   **Direct Integration:** If the patent holder is a display component or module manufacturer, they could integrate the technology directly into their products, selling superior display modules at a premium.\n*   **Strategic Partnerships:** Collaborating with leading consumer electronics brands to co-develop next-generation products featuring this enhanced display technology.\n\n**Strategic Positioning:**\nThis innovation strategically positions its adopters at the forefront of display technology. It moves beyond incremental improvements in resolution or refresh rates, addressing a foundational performance and reliability issue. Companies leveraging this patent can brand their displays as 'drift-free' or 'ultra-stable,' creating a distinct market segment for premium, long-lasting visual experiences.\n\n**ROI Projections:**\nInvestment in this technology, either through licensing or direct implementation, is likely to yield strong ROI. Reduced warranty costs alone, due to extended display lifespan, can result in substantial savings. Increased customer satisfaction and the ability to command premium pricing for superior products will drive higher sales volumes and profit margins. Furthermore, early adoption could establish a dominant market position in emerging display categories, securing long-term revenue streams. The ability to produce truly consistent, high-fidelity displays is a significant value proposition that resonates with both consumers and enterprise clients, ensuring a robust return on investment.","faqs":[{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** refers to a patented invention (US-9852685) that introduces a novel electronic circuit design and an operational technique specifically for display panels. At its core, this innovation aims to significantly improve the stability, uniformity, and longevity of modern displays, particularly those utilizing Thin-Film Transistors (TFTs) to drive light-emitting elements like Organic Light-Emitting Diodes (OLEDs).\n\nThe patent details a sophisticated pixel circuit that integrates three transistors (T1, T2, T3), a storage capacitor (C1), and the light-emitting device (L). This arrangement creates an intelligent feedback system directly within each individual pixel. By actively sensing and compensating for variations in the electrical characteristics of the driving transistor (T2), the system ensures consistent current delivery to the light-emitting device.\n\nThis technology provides a fundamental solution to issues like brightness non-uniformity and image retention that commonly plague display panels. It represents a significant advancement in display engineering, promising a more pristine and stable visual experience for users.","question":"What is Pixel Circuit and Driving Method Thereof, Display Apparatus?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** operates through a clever two-phase driving method that leverages its unique circuit architecture. During the first phase, often called the 'compensation' or 'pre-charge' phase, control signals activate specific transistors within the pixel circuit.\n\nIn this phase, the main driving transistor (T2) is configured in a way that allows a storage capacitor (C1) to 'learn' and store a voltage that precisely reflects the threshold voltage (Vth) of T2. The Vth is the voltage required to turn the transistor on, and it can drift over time or vary between transistors. By storing this compensated voltage, C1 essentially 'adjusts' for any individual quirks of T2.\n\nDuring the second phase, the 'emission' phase, the pixel is activated to emit light. The voltage stored on C1 then dictates the gate-source voltage of T2. Because this voltage has already been compensated for T2's Vth, the current flowing through T2 to the light-emitting device remains stable and consistent. This ensures that every pixel shines with the intended brightness, regardless of any Vth drift, leading to uniform and high-quality display output. Keywords: pixel circuit operation, Vth compensation, display driving method, transistor control, storage capacitor, OLED current.","question":"How does Pixel Circuit and Driving Method Thereof, Display Apparatus work?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** primarily solves the critical problem of 'threshold voltage (Vth) drift' in the Thin-Film Transistors (TFTs) that drive pixels in active matrix displays, especially OLEDs. Vth drift is a phenomenon where the electrical characteristics of these tiny transistors change over time due to prolonged operation, temperature variations, or inherent manufacturing inconsistencies.\n\nThis drift leads to several significant display issues:\n1.  **Brightness Non-Uniformity (Mura):** Different pixels receive inconsistent currents, causing visible blotches or uneven brightness across the screen.\n2.  **Image Retention/Sticking:** Pixels that have been on for extended periods may retain a faint 'ghost' image when the display content changes.\n3.  **Reduced Display Lifespan:** Inconsistent current delivery can accelerate the degradation of the light-emitting devices, shortening the overall life of the display panel.\n\nBy actively compensating for this Vth drift at the individual pixel level, this patent ensures that each pixel consistently receives the correct driving current, thereby eliminating these problems and significantly improving the overall display effect. Keywords: threshold voltage drift, display problems, OLED degradation, display uniformity, image retention, TFT instability.","question":"What problem does Pixel Circuit and Driving Method Thereof, Display Apparatus solve?"},{"answer":"The patent for **Pixel Circuit and Driving Method Thereof, Display Apparatus** (US-9852685) does not list the inventors or assignee in the provided abstract. Patent filings typically include this information in the full document, accessible through patent databases.\n\nHowever, the nature of such an innovation suggests that it would likely originate from a research and development team within a major display technology company or a specialized electronics firm. These organizations continuously invest in R&D to overcome fundamental challenges in display engineering, aiming to enhance product performance, reliability, and competitive advantage. The invention would be the result of collaborative efforts by engineers and scientists specializing in solid-state physics, circuit design, and materials science. Keywords: patent inventors, assignee, display technology R&D, patent ownership, innovation origin.","question":"Who invented Pixel Circuit and Driving Method Thereof, Display Apparatus?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** offers several profound benefits that enhance both the user experience and the commercial viability of display products:\n\n1.  **Superior Display Uniformity:** By effectively compensating for threshold voltage drift, the technology ensures that every pixel on the screen emits light with consistent brightness and color, eliminating distracting mura effects and creating a visually pristine display.\n2.  **Extended Display Lifespan:** Consistent current delivery to the light-emitting devices prevents premature degradation, significantly prolonging the operational life of the display panel and the device it's integrated into.\n3.  **Enhanced Stability and Reliability:** The active compensation mechanism makes displays more robust against aging, temperature fluctuations, and manufacturing variations, ensuring stable performance over time and in diverse environments.\n4.  **Improved User Experience:** A uniform, stable, and long-lasting display translates directly into a higher-quality, more satisfying visual experience for consumers, whether they are watching movies, gaming, or working.\n5.  **Reduced Manufacturing Costs (Indirect):** By mitigating display degradation, manufacturers can reduce warranty claims and after-sales service costs, contributing to a better bottom line. Keywords: display benefits, OLED quality, extended lifespan, display uniformity, reliability, user experience, cost reduction.","question":"What are the key benefits of Pixel Circuit and Driving Method Thereof, Display Apparatus?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** distinguishes itself from prior art by offering a more robust and integrated in-pixel compensation solution for threshold voltage (Vth) drift. Many prior art methods attempted to address Vth drift through external compensation circuits, which are typically bulky, complex, and less precise at the individual pixel level.\n\nSome earlier approaches relied on simple pixel structures (e.g., 2T1C - two transistors, one capacitor) that offered limited or static compensation, failing to adapt to dynamic drift during operation. Other methods involved extensive factory calibration that couldn't account for real-time changes post-production. This invention, however, embeds a sophisticated three-transistor and storage capacitor architecture directly within each pixel.\n\nThis allows for dynamic, real-time sensing and compensation of the driving transistor's Vth right at the source, ensuring continuous and precise current delivery. This in-pixel approach provides superior uniformity, stability, and adaptability compared to external, static, or less integrated prior art solutions, leading to fundamentally better and longer-lasting display performance. Keywords: prior art comparison, display innovation, in-pixel compensation, Vth drift solutions, 2T1C pixel circuit, dynamic compensation, display technology differentiation.","question":"How is Pixel Circuit and Driving Method Thereof, Display Apparatus different from prior art?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** holds significant potential to impact a wide array of industries that rely heavily on high-quality display technology.\n\n1.  **Consumer Electronics:** This is the most direct impact, benefiting products like smartphones, tablets, high-definition televisions, smartwatches, and laptops by delivering superior, long-lasting visual performance.\n2.  **Automotive:** Modern vehicles are increasingly incorporating sophisticated displays for infotainment, digital dashboards, and heads-up displays. This technology ensures reliability and consistent performance in demanding automotive environments.\n3.  **Augmented Reality (AR) and Virtual Reality (VR):** For immersive AR/VR headsets, perfectly uniform and stable micro-displays are crucial for preventing visual artifacts, reducing motion sickness, and enhancing the overall user experience.\n4.  **Professional Displays:** Industries requiring high-precision visual fidelity, such as medical imaging, graphic design, and broadcasting, will benefit from displays that maintain absolute uniformity and color accuracy over time.\n5.  **Flexible and Wearable Electronics:** As displays become more flexible and conformable, maintaining pixel uniformity under mechanical stress is challenging. This in-pixel compensation technology is vital for the success of these emerging form factors. Keywords: display industry impact, consumer electronics, automotive displays, AR/VR technology, professional monitors, flexible electronics, display applications.","question":"What industries will Pixel Circuit and Driving Method Thereof, Display Apparatus impact?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** patent (US-9852685) has specific dates associated with its lifecycle:\n\n*   **Filing Date:** The application for this patent was originally filed on **September 26, 2014**.\n*   **Publication Date:** The patent was subsequently published, making its details publicly accessible, on **December 26, 2017**.\n\nThe filing date marks when the invention was officially submitted to the patent office, establishing its priority date. The publication date signifies when the patent document became publicly available, allowing others to review its claims and technical specifications. These dates are crucial for understanding the patent's legal standing and its position within the timeline of display technology innovation. Keywords: patent filing date, publication date, patent timeline, US-9852685, patent lifecycle, intellectual property dates.","question":"When was Pixel Circuit and Driving Method Thereof, Display Apparatus filed/granted?"},{"answer":"The commercial applications of the **Pixel Circuit and Driving Method Thereof, Display Apparatus** are extensive, primarily focused on enhancing the quality and longevity of active matrix displays, especially OLEDs. Its core capability to compensate for threshold voltage drift opens up opportunities across various high-value market segments.\n\nKey commercial applications include:\n1.  **Premium Consumer Electronics:** Integration into high-end smartphones, flagship televisions, and advanced laptops to deliver visually superior products with extended lifespans, justifying premium pricing.\n2.  **Specialized Displays:** Used in professional monitors for content creation, medical diagnostics, and industrial control panels where color accuracy and brightness uniformity are non-negotiable.\n3.  **Emerging Technologies:** Essential for the successful commercialization of augmented reality (AR) and virtual reality (VR) headsets, where consistent micro-display performance is critical for immersion and user comfort. It also enables more robust flexible, foldable, and transparent display technologies.\n4.  **Automotive Sector:** Implementation in vehicle infotainment systems, digital instrument clusters, and heads-up displays to ensure reliable and consistent visual information in demanding automotive environments. This innovation allows manufacturers to offer more reliable, higher-quality display modules that reduce warranty costs and improve brand perception, translating directly into increased sales and market share. Keywords: commercial applications, OLED market, premium displays, AR/VR applications, automotive displays, display manufacturing, market opportunity.","question":"What are the commercial applications of Pixel Circuit and Driving Method Thereof, Display Apparatus?"},{"answer":"The **Pixel Circuit and Driving Method Thereof, Display Apparatus** lays a robust foundation for numerous future developments in display technology. As a core solution to threshold voltage drift, its principles are highly adaptable and scalable.\n\nExpected future developments include:\n1.  **Enhanced Integration with Advanced TFT Materials:** Further optimization for newer TFT technologies like Oxide TFTs or organic TFTs, ensuring even greater efficiency and stability across diverse material platforms.\n2.  **Ultra-High Resolution Displays:** As pixel densities continue to increase (e.g., for 8K TVs or micro-OLEDs in AR/VR), the precise pixel-level compensation offered by this technology becomes even more critical, allowing for the realization of truly flawless ultra-high-resolution screens.\n3.  **Adaptive Compensation Algorithms:** Future iterations might incorporate more sophisticated machine learning or AI-driven algorithms to predict and proactively compensate for drift, further extending display life and maintaining perfection.\n4.  **Flexible and Stretchable Electronics:** This technology will be crucial for the mass production of truly flexible, rollable, and even stretchable displays, where maintaining pixel uniformity under dynamic mechanical stress is a significant challenge. The in-pixel nature makes it ideal for such applications.\n5.  **Energy Efficiency Improvements:** Further refinements to the driving method and circuit components could lead to even lower power consumption, which is vital for portable and battery-powered devices. This patent positions the display industry for a future of unprecedented visual quality, reliability, and innovative form factors. Keywords: future display technology, OLED developments, flexible displays, AR/VR advancements, energy efficient displays, adaptive algorithms, display innovation roadmap.","question":"What are the future developments expected for Pixel Circuit and Driving Method Thereof, Display Apparatus?"}],"topics":["pixel circuit","driving method","display apparatus","OLED compensation","TFT threshold voltage drift","technical","background","challenge"],"tech_cluster":null},"seo":{"title":"Pixel Circuit and Driving Method Thereof, Display Apparatus - Patent US-9852685","description":"Discover the Pixel Circuit and Driving Method Thereof, Display Apparatus patent. Eliminates display flicker, extends lifespan, and enhances uniformity.","keywords":["pixel circuit","driving method","display apparatus","OLED compensation","TFT threshold voltage drift","display uniformity","display lifespan","patent US-9852685","display technology","active matrix display","display innovation"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9852685","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-9852685","citation_suggestion":"Patentable. \"Pixel circuit and driving method thereof, display apparatus\" (US-9852685). https://patentable.app/patents/US-9852685","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9852685","json":"https://patentable.app/api/llm-context/US-9852685","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:46:12.451Z"}