Articles tagged with Display Technology
A pilot study found that an examiner-worn, neck-mounted camera can supplement the observation and review of clinical skills during OSCE assessments. The results showed moderate to strong agreement between live and video-based assessments, with the wearable camera enabling more observations to be evaluated than the fixed camera.
A research team led by Prof. Yongtaek Hong developed a high-performance transparent organic light-emitting diode (OLED) incorporating highly conductive transparent metal mesh top electrodes fabricated using a selective metal deposition technique. The electrodes achieved high optical transparency of 93-99% and low sheet resistance, maki...
Engineers at UC San Diego developed an optical device that reveals hidden images and changes colors in response to different levels of humidity. The technology has potential applications in anti-counterfeiting labels, secure data storage, interactive displays, and environmental sensors.
A new framework combines a custom-built training dataset with transfer learning to improve the detection accuracy of small and distant objects in omnidirectional videos. The proposed model achieved an overall accuracy of 90%, significantly higher than conventional models for small moving objects.
Researchers develop fluoride-engineered perovskite nanocrystal glass for high-efficiency, full-color emission and ultra-high-resolution holographic displays. The glass matrix enables stable and efficient photoluminescence of PNCs, driving the creation of high-quality dynamic displays.
Researchers from The University of Osaka propose a compact LED design that directly emits circularly polarized light, potentially simplifying optical devices. The new design uses robust inorganic materials and achieves high levels of both efficiency and polarization degree.
Researchers at the University of Michigan discovered that nanoscale hotspots in OLEDs can flicker, affecting device lifespans. These hotspots can cause uneven current flow, leading to faster burnout and reduced device performance.
Professor Tae-Woo Lee's research team has developed a 'Cold-injection' method to synthesize high-quality perovskite nanocrystals at room temperature, overcoming safety risks and production costs. The technology achieved near-unity photoluminescence quantum yield in a large-scale synthesis of 20 liters.
Professor Tae-Woo Lee's research group develops hierarchical-shell perovskite nanocrystal technology that simultaneously overcomes the long-standing instability of metal-halide perovskite emitters while achieving record-breaking quantum yield, operational stability, and scalability. This breakthrough paves the way for next-generation v...
Researchers at Princeton University have developed a new technique to convert low-energy light into high-energy LEDs, improving the ability to upconvert green light to blue or ultraviolet light. The method uses plasmonics to boost upconversion on a thin metal film, reducing the power needed by 19 times compared to previous setups.
Researchers introduce a universal, nondestructive direct photolithography method for QD patterning, enabling precise control over fragile surface chemistry. The study demonstrates high-resolution patterns exceeding 10,000 pixels per inch and boosts device efficiency.
L. Jay Guo, University of Michigan professor, recognized for scalable nanopatterning technology enabling next-gen flexible electronics and structural color applications. His work has attracted interest from major companies like Samsung and Toyota.
Researchers at the University of Texas at Dallas have developed PropType, a unique interface that transforms everyday objects into typing surfaces within an AR environment. This technology leverages tactile feedback to reduce reliance on visual cues and provides an alternative to traditional keyboards.
A team of Korean researchers has successfully integrated a single memristor into micro-LED pixels, replacing the traditional driving transistor and storage capacitor. This innovation enables more efficient and easier-to-build displays with improved brightness and color accuracy.
Researchers at the University of Cambridge found that the human eye has a resolution limit, above which screens provide more information than can be detected. For an average UK living room, a 44-inch 4K or 8K TV does not offer additional benefits over a lower resolution Quad HD TV.
Researchers from Chalmers University of Technology have developed a technology with the smallest pixels ever, allowing for screens with the highest resolution possible for human eye perception. The breakthrough enables the creation of virtual worlds visually indistinguishable from reality.
Researchers developed a deep blue organic light-emitting diode (OLED) capable of producing sharp blue emission meeting BT.2020 standards with just a single 1.5 V battery. The device operates by introducing a new molecular dopant that prevents charge trapping, a problem that previously hampered the performance of low-voltage OLEDs.
Researchers from Seoul National University of Science & Technology developed a smart adhesive system based on starfish for temporary and switchable underwater adhesion. The system exhibits high adhesion hysteresis, automatic release based on outside stimuli, and quick detachment by pneumatic actuation.
Researchers developed a white organic light-emitting diode that operates at an unprecedentedly low voltage of less than 1.5 volts. This breakthrough could contribute to reducing energy consumption in state-of-the-art displays, including television backlights and lighting devices.
Researchers have developed OLED-based systems that achieve data rates of up to 4.0 Gbps over 2 meters and 2.9 Gbps over 10 meters, surpassing previous records. The breakthrough uses a stable organic compound called dinaphthylperylene to balance brightness and speed.
Researchers have developed a novel approach to create reversible and tunable color filtering across the visible spectrum, enabling applications in next-generation displays and optical devices. The technology leverages phase change properties of Sb2S3 to achieve distinct color changes by inducing phase transitions.
Researchers studied atomic-scale defects in single-crystal IGZO to understand its electronic properties. They found that oxygen vacancies and structural disorder contribute to device instability, but also detected a relationship between crystallinity and subgap states.
Researchers at Pohang University of Science and Technology developed a novel dry adhesive technology using shape memory polymers, allowing for precise micro-LED chip transfer with minimal residue. The technology offers significant advantages over conventional methods, including high adhesion strength and easy release.
Researchers at Pohang University of Science & Technology have developed Pixel-Based Local Sound OLED technology, allowing each pixel to emit different sounds. This breakthrough enables truly localized sound experiences in displays, enhancing realism and immersion.
Researchers at the University of Turku developed a simple, eco-friendly approach to fabricate optical microcavities, allowing for precise study of polaritons and potential applications in ultra-efficient lasers and quantum optics. This innovation makes quantum and photonics research more accessible and energy-efficient.
Researchers at the University of Surrey unveiled a new type of electronic component called multimodal transistor (MMT) that simplifies display circuits while improving performance and sustainability. The MMT enables compact high-performance circuits suitable for devices like smartphones, tablets and wearables, reducing power requiremen...
Researchers at Pohang University of Science & Technology (POSTECH) have developed an achromatic metagrating that handles all colors in a single glass layer, eliminating the need for multiple layers. This breakthrough enables vivid full-color images using a 500-µm-thick single-layer waveguide.
A collaborative research team has developed a novel mixed reality (MR) technology that uses real-world doors as natural transition points. The system allows users to select a door within their MR interface and seamlessly transition into a virtual space, creating an unprecedented sense of immersion.
Researchers developed bright and efficient green-emitting ZnSeTe-based QD-LEDs by introducing an ultrathin ZnSeS alloy interlayer, enhancing radiative recombination efficiency and optical stability. The devices showed a peak external quantum efficiency of 20.6% and luminance exceeding 100,000 cd m−2.
The POSTECH research team developed a smartphone-type OLED panel that can transform its shape while functioning as a speaker, maintaining ultra-thin flexibility. The panel uses electrically driven piezoelectric polymer actuators to achieve complex forms without mechanical hinges or motors.
Researchers have developed a chiral semiconductor that emits circularly polarised light, potentially improving OLED display efficiency and enabling quantum computing. The innovation uses molecular design tricks inspired by nature to create ordered spiral columns of semiconducting molecules.
Researchers at Curtin University have developed a new type of quantum dot that matches or outperforms traditional cadmium-based QLEDs in terms of efficiency and color accuracy. The breakthrough technology emits pure and vibrant blue light with an impressive 24.7% efficiency, lasting nearly 30,000 hours.
A team of researchers developed augmented reality glasses that receive images from projectors instead of generating them, reducing weight while maintaining high-quality visuals. The new light-receiving mechanism expands the angle at which the glasses can receive projected light, allowing users to freely move their heads.
Researchers have developed a high-temperature successive ion layer adsorption and reaction (HT-SILAR) strategy for producing high-quality, large-particle alloyed red quantum dots. This enables the creation of highly efficient QLEDs with exceptional color purity and stability.
Scientists at Nagoya University developed a nanoscale video game that manipulates nanoparticles in real-time, enabling interaction between virtual and physical objects. The 'nano-mixed reality' system has potential applications in nanotechnology and biomedical engineering, including 3D printing and targeted virus killing.
Researchers developed a theoretical model predicting substantial increase in OLED brightness by leveraging polaritons, promising improved efficiency and brightness. The study proposes new materials discovery and architecture development to achieve single-molecule strong coupling or tailored molecules for polariton OLEDs.
The study introduces a game-changing concept in dual-mode display design by uniting luminescence and coloration within a single device. The device leverages smectite clay to stabilize europium(III) complexes for vibrant luminescence and heptyl viologen derivatives for striking color changes.
The DAVD display enhances Navy divers' visibility in dark, low-visibility environments, improving their productivity and safety. The system uses real-time information sharing, high-resolution imagery, and augmented-reality displays to help divers navigate and communicate with surface teams.
Droplets of a specific organic liquid emit laser light when an electric field is applied, demonstrating electrically switchable 'laser pixels.' A 2x3 array of these droplets can be controlled individually for high-density displays.
The study successfully developed a controlled nucleation doping method to induce stable and precise doping in ZnSe semiconductor nanocrystals. This technology eliminates the use of heavy metals, addressing environmental concerns while enabling practical applications for advanced electronic devices.
A research team at Pohang University of Science & Technology developed a technology that visualizes the deformation of 'serpentine' structures in real-time through color changes. This innovation eliminates the need for complex nanofabrication processes, providing actionable design guidelines for optimizing these structures.
The study creates ultra-stable thin-film polariton filters with exceptional angular stability, transmitting up to 98% of light, even at extreme viewing angles. This technology has enormous scientific and economic potential for applications in display technology, sensor technologies, biophotonics, and more.
Researchers found that smart TVs send detailed profiles of consumers' habits to servers, using Automatic Content Recognition technology. This tracking raises significant privacy concerns, particularly when the TV is used solely as a monitor, and can be difficult for users to disable due to lack of transparency.
Color-conversion displays have gained prominence in the industry due to their advantages such as high brightness, wide color gamut, and improved contrast ratio. Researchers are focusing on advancements in color conversion Micro-LED displays to commercialize this emerging technology.
The research team identified a critical mechanism behind OLED performance degradation: interfacial exciton-polaron quenching. By controlling this phenomenon, they achieved an increase in efficiency of over 50% for red, green, and blue phosphorescent OLEDs and extended the lifespan of blue OLEDs by more than 70%.
Scientists develop green Micro-LEDs with high brightness and resolution, overcoming energy conversion efficiency limitations. The innovative wafer-scale uniform GaN-on-silicon epilayer technology enables the mass production of high-brightness Micro-LED displays on large size epi-wafers.
Researchers at KAIST have developed a Janus metasurface capable of controlling asymmetric light transmission, enabling the creation of two independent optical systems with a single device. This technology also enables optical encryption by generating different images depending on the direction and polarization state of incoming light.
The SNU-KAIST joint research team developed a novel visible light communication encryption technology with high security using chiral nanoparticles. This technology uses unclonable nanoparticles like fingerprints to encrypt information, making it impossible to intercept without detailed information about the nanoparticles.
Researchers at Institute of Science Tokyo create terpene-based chiral capsules that facilitate the easy preparation of well-defined host–guest composites with tunable chiroptical properties. The resulting composites can be used in water without organic solvents, paving the way for advances in cutting-edge optical technologies.
Researchers developed Transparent Pressure-Calibratable Interference Electrotactile Actuator (TPIEA) technology to provide consistent virtual haptic experiences. The TPIEA uses platinum nanoparticles to reduce impedance and achieve high transmittance, allowing for precise and varied tactile sensations.
The study reveals that parallax significantly impacts the perceived realism and immersion of 3D images viewed through holographic displays. The research team confirmed that 3D images generated by the light field method were preferred over those using the multilayer method.
A new four-year, $459,000 grant will develop software and hardware tools to increase accessibility in STEM fields for persons with disabilities. The project aims to enhance data technologies for blind and low-vision users, making it easier for them to participate in STEM research and education.
A team at Pohang University of Science & Technology has developed a novel stretchable photonic device that can control light wavelengths in all directions. The device leverages structural colors produced through the interaction of light with microscopic nanostructures, allowing for vivid and diverse color displays.
Researchers at TMOS have developed a new infrared filter thinner than cling wrap, which can be integrated into everyday eyewear, allowing users to view both visible and infrared light spectra. This breakthrough miniaturizes night vision technology, opening up new applications in safety, surveillance, and biology.
Researchers from the University of Bath have created a deformable screen called DeformIO, which can be deformed through finger pressure. The surface becomes softer or stiffer in direct response to force applied, allowing users to interact with digital objects in a more tactile way.
The study found that an 80% concentration of zirconium dioxide (ZrO2) and specific solvents leads to the highest pattern transfer efficiency. The conversion efficiency reaches impressive levels in the ultraviolet spectrum, paving the way for commercial viability of metasurfaces.
Researchers from the Institute for Basic Science created QLEDs using a ternary nanocomposite film that enhances carrier delivery to quantum dots, resulting in optimal device performance. The devices exhibit high brightness and low threshold voltage, with no damage when stretched up to 1.5 times.
The team created ten holograms with varying colors and shapes using an inverse design technique driven by artificial intelligence. They integrated an oblique helicoidal cholesterics-based wavelength modulator to accurately implement the designed holograms, enabling the establishment of an optical security system.
Researchers at Linképing University have developed a digital display screen where LEDs react to touch, light, fingerprints, and the user's pulse, among other things. The screen can also be charged through the screen due to its ability to act as solar cells.
Researchers pioneer technique to control polaritons, unlocking potential for next-generation materials and surpassing performance limitations of optical displays. The breakthrough enables stable generation of polariton particles with enhanced brightness and color control.