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Últimas publicaciones y patentes sobre pantallas micro LED

Pantallas Micro-LED

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Las pantallas micro-LED son tecnologías de panel plano emisivas construidas con chips LED de nitruro de galio inorgánico con dimensiones de píxeles individuales típicamente inferiores a 100 micrómetros, que ofrecen niveles de luminancia, relaciones de contraste y vidas útiles que ni las arquitecturas OLED ni LCD pueden igualar con densidades de píxeles equivalentes. El problema fundamental de fabricación —transferir miles de millones de chips microscópicos sin defectos desde obleas epitaxiales a placas base de matriz activa a una velocidad y rendimiento viables para la producción— sigue siendo el principal obstáculo que separa las demostraciones de laboratorio de los paneles para el mercado masivo, lo que impulsa una intensa actividad de patentes en torno a métodos de transferencia masiva, desprendimiento por láser, autoensamblaje y estrategias de reparación basadas en redundancia.

Pantallas micro-LED
La tecnología de micro-LEDs se enfrenta a desafíos de fabricación para lograr una producción a gran escala sin defectos para pantallas de consumo masivo.

En lo que respecta a los materiales, la disminución de la eficiencia en chips de dimensiones reducidas, la conversión de color mediante filtros de puntos cuánticos y la integración monolítica de emisores rojos, verdes y azules en un único sustrato de GaN son líneas de investigación activas.

Las aplicaciones posteriores abarcan micropantallas acopladas a guías de onda de realidad aumentada/realidad virtual, pantallas de visualización frontal (HUD) de alto brillo para automóviles, videowalls de gran formato de visión directa y dispositivos portátiles donde el presupuesto de energía y el factor de forma hacen que la eficiencia emisiva sea innegociable.

Las publicaciones y patentes que se indexan a continuación abarcan todo este proceso, desde el crecimiento epitaxial y la separación de chips hasta la integración del plano posterior, los circuitos de control, la gestión del color y la arquitectura de visualización a nivel de sistema.

Esta es nuestra última selección de publicaciones y patentes mundiales en inglés sobre Micro-LED Displays, entre muchas revistas científicas en línea, clasificadas y centradas en Micro-LED, μLED, epitaxia LED, micro-LED de transferencia de masa, micro-LED pick-and-place, micro-LED backplane, micro-LED TFT backplane, micro-LED wafer bonding, LED chip singulation, micro-LED pixel pitch, micro-LED monolítico, micro-LED array, GaN micro-LED y micro LED.

Publicación: no hay noticias recientes sobre este tema en particular. Pruebe a realizar una búsqueda manual exhaustiva en la base de datos de publicaciones a la que se hace referencia más arriba.

Display module and electronic device including the same

Patent published on the 2026-10-15 in US under Ref US20260324161 by SAMSUNG ELECTRONICS CO LTD [KR] (Seo Yeonghyeon [kr], Jang Hyuntae [kr])

Abstract: A display module is provided. The display module includes a glass substrate including a first surface, a second surface opposite to the first surface, and a plurality of through holes extending from the second surface to the first surface, a plurality of through electrodes, each through electrode partially filling a through hole among the plurality of through holes, and a plurality of micro light emitting diodes (LEDs), each micro LED disposed in a through hole among the plurality of through hol[...]


Our summary: A display module features a glass substrate with through holes. It includes through electrodes that partially fill these holes. Micro LEDs are placed in the holes and connected to the electrodes.

display module, micro LEDs, glass substrate, through electrodes

Patent

Micro-led beam steering

Patent published on the 2026-10-08 in WO under Ref WO2026209492 by SIGNIFY HOLDING B V [NL] (Van Bommel Ties [nl])

Abstract: A lighting device comprises first and second micro-LED light sources comprising a respective die having respective spatial extensions less than or equal to 100 micrometers. Each die has length to width aspect ratio of at least 2. The first and second micro-LEDs are arranged non-parallel with respect to each other such that an angle between directions of elongation of the micro-LEDs is at least 20 degrees. A controller is configured to individually control a respective luminous flux of the first [...]


Our summary: The device features first and second micro-LED light sources with spatial extensions of 100 micrometers or less. It allows for individual control of luminous flux to create different spatial light distributions in two operational modes. The micro-LEDs are arranged at an angle of at least 20 degrees to enhance beam steering capabilities.

micro-LED, beam steering, luminous flux, spatial light distribution

Patent

Method of optimizing cartridge size

Patent published on the 2026-09-24 in WO under Ref WO2026193595 by VUEREAL INC [CA] (Chaji Gholamreza [ca], Cronin John [us])

Abstract: The present invention discloses methods of optimizing the size of cartridges used in micro-LED processing. The invention discloses various methods of optimizing cartridge size utilizing compensation techniques to overcome defect uniformity, wavelength uniformity, flatness, defects limit, vendor specifications, design size, design shape, number of cartridges, and cartridge transfer costs.[...]


Our summary: The invention provides methods to optimize cartridge sizes for micro-LED processing. It addresses issues such as defect uniformity and wavelength uniformity. Various compensation techniques are employed to meet vendor specifications and reduce transfer costs.

cartridge optimization, micro-LED processing, compensation techniques, defect uniformity

Patent

Technologies for micro-led optical interconnects

Patent published on the 2026-08-20 in US under Ref US20260247737 by DUONG BENJAMIN T [US] (Ahmed Khaled [us], Fryman Joshua B [us], Duong Benjamin T [us])

Abstract: [0000] Technologies for micro-LED optical interconnects are disclosed. In an illustrative embodiment, micro-LEDs are used to drive optical signals coupled to a multi-mode fiber. The multi-mode fiber carries the light to a photodetector array. The photodetector array includes several pixels, each of which has several nanowire phototransistors. The nanowire phototransistors have a fast response time and a combined high quantum efficiency. The nanowire phototransistors may be wavelength selective, [...]


Our summary: Micro-LEDs drive optical signals through multi-mode fiber to a photodetector array. The array consists of pixels with nanowire phototransistors that offer fast response and high quantum efficiency. Metasurface nanostructures may enhance wavelength selectivity for improved optical detection.

micro-LEDs, optical interconnects, photodetector array, nanowire phototransistors

Patent

Micro-led systems having in situ current measurement circuits

Patent published on the 2026-08-05 in EP under Ref EP4787357 by MICROSOFT TECHNOLOGY LICENSING LLC [US] (Thompson Barry [us], Prather Lawrence A [us], Dyer Kenneth Colin [us])

Abstract: [0001] Microscopic light emitting diodes (micro-LEDs) systems having in situ current measurement circuits are described. An example micro-LED system includes a set of micro-LEDs formed in a display substrate and a set of pixel driver circuits formed in a backplane substrate, coupled to the display substrate, where a respective pixel driver circuit is to provide current to a respective micro-LED during a first mode of operation for the set of micro-LEDs. The micro-LED system further includes a cu[...]


Our summary: Micro-LED systems with in situ current measurement circuits are described. The system includes micro-LEDs and pixel driver circuits on separate substrates. A current measurement circuit uses an operational amplifier to measure current from pixel drivers.

micro-LED, current measurement, pixel driver circuits, operational amplifier

Patent

Micro-led systems with bridge circuits for scaling voltages and currents

Patent published on the 2026-07-29 in EP under Ref EP4783151 by MICROSOFT TECHNOLOGY LICENSING LLC [US] (Dyer Kenneth Colin [us], Prather Lawrence A [us])

Abstract: [0001] Microscopic light emitting diodes (micro-LEDs) systems with bridge circuits for scaling voltages and currents are described. An example micro-LED system includes a set of micro-LEDs having a respective voltage terminal configured to receive a first positive voltage supply and a common cathode terminal configured to receive a negative voltage supply. The micro-LED system includes sensing circuits to sense voltages and currents received from a selected subset of the set of micro-LEDs, where[...]


Our summary: The content describes micro-LED systems utilizing bridge circuits for voltage and current management. It details how these systems scale voltages and limit currents through sensing circuits. The micro-LEDs are configured with specific voltage terminals for efficient operation.

micro-LEDs, bridge circuits, voltage scaling, current sensing

Patent

Temas tratados: Micro-LED, pantallas emisivas, nitruro de galio, dimensiones de los píxeles, niveles de luminancia, ratios de contraste, vida útil operativa, métodos de transferencia de masa, despegue láser, autoensamblaje, caída de la eficiencia, filtros de puntos cuánticos, integración monolítica, AR/VR, HUD de automoción, videowalls de visión directa, dispositivos portátiles, arquitectura de pantallas ISO/IEC 61966, IEC 62341, ISO 9241, ISO/IEC 29170 e IEC 62832.

Glosario de términos utilizados

Least Common Denominator (LCD): el múltiplo más pequeño que es común a los denominadores de dos o más fracciones, lo que permite la conversión de esas fracciones a formas equivalentes con un denominador común para la suma, la resta o la comparación.

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