Displays

Researchers from Seoul National University of Science and Technology, Korea Advanced Institute of Science and Technology and Korea Institute of Machinery and Materials recently reported a graphene-based laser lift-off technique that prevents damage while separating ultrathin OLED displays. This advancement could open the door towards ultra-thin, stretchable devices that fit comfortably against human skin, revolutionizing wearable device technology.

a) Graphene-enabled laser lift-off (GLLO) process. b) Conventional laser lift-off (LLO) process. Image from: Nature Communications

Polyimide (PI) films are widely used in these applications due to their excellent thermal stability and mechanical flexibility. They are crucial for emerging technologies like rollable displays, wearable sensors, and implantable photonic devices. However, when the thickness of these films is reduced below 5 μm, traditional laser lift-off (LLO) techniques often fail. Mechanical deformation, wrinkling, and leftover residues frequently compromise the quality and functionality of ultrathin devices, making the process inefficient and costly.

Today we published a new edition of our Graphene for Displays and Lighting Market Report, with all the latest information. Graphene has high potential to improve LCD, OLED and MicroLED displays and can be used to enhance displays backplanes, electrodes, heat dissiperation, emitters and more. In addition graphene can increase efficiency in lighting devices and improve designs. 

Reading this report, you'll learn all about:

• Graphene applications in LED and OLED lighting
• Graphene's adoption as a backplane for AMOLEDs
• Transparent graphene electrodes
• Graphene-based encapsulation development

The report package also provides:

• Graphene companies involved with display and lighting
• An introduction to graphene
• An introduction to lighting and displays
• Details about graphene for QDs, lasers and thermal foils

This market report provides a great introduction to graphene solutions for the display and lighting markets, and covers everything you need to know about graphene technologies in these niches. This is a great guide for anyone involved with the displays and lighting.

The EU-funded MEGAMORPH project, which started in 2022, demonstrated its graphene-based display technology at Displayweek 2024.

The idea behind the project is to use CVD graphene sheets (produced by Graphenea, a partner in the project) as the semi-transparent membranes in a Interferometric Modulator Display. These kinds of displays use mechanical micro-mirrors as pixels that modulate the ambient light without using power to generate light. IMOD displays are promising as they can offer very low power operation and high density displays.

Today we published a new edition of our Graphene for Displays and Lighting Market Report, with all the latest information. Graphene has high potential to improve LCD, OLED and MicroLED displays and can be used to enhance displays backplanes, electrodes, emitters and more. In addition graphene can increase efficiency in lighting devices and improve designs. Recently we have seen companies (Asus and MSI) starting to adopt graphene for heat dissipation in gaming monitors, an interesting trend.

Reading this report, you'll learn all about:

• Graphene applications in LED and OLED lighting
• Graphene's adoption as a backplane for AMOLEDs
• Transparent graphene electrodes
• Graphene-based encapsulation development

The report package also provides:

• Graphene companies involved with display and lighting
• An introduction to graphene
• An introduction to lighting and displays
• Details about graphene for QDs, lasers and thermal foils

This market report provides a great introduction to graphene solutions for the display and lighting markets, and covers everything you need to know about graphene technologies in these niches. This is a great guide for anyone involved with the displays and lighting.

Researchers from Korea's Seoul National University and Sungkyunkwan University recently developed a method to grow GaN LED arrays on a flexible graphene layer. The so-called microdisk arrays exhibit excellent crystallinity with a uniform in-plane orientation and strong blue light emission.

Flexible GaN-microLEDs on graphene, Seoul National University, Sungkyunkwan University

The researchers grew the GaN microdisks on a graphene layer (grown on a sapphire substrate) covered with a micro-patterned SiO₂ mask using metal–organic vapor-phase epitaxy. The microdisks were then processed into micro-LEDs and then successfully transferred onto bendable substrates.

MSI, a leading manufacturer of gaming hardware, has announced it will be expanding its QD-OLED gaming monitor lineup. The new monitors will reportedly make use of graphene's thermal conductivity in its heat management technology. 

All models will be equipped with the latest generation of QD-OLED panels and will be available in both curved and flat models. Among other thing, the new monitors will enjoy a fan-less design, enhanced with graphene thermal tech for efficient and silent heat dispersion. This further extends the lifespan of these innovative QD-OLED panels.

At the beginning of June 2023, Asus unveiled the Asus ROG Swift OLED PG49WCD, a gaming monitor that uses graphene for thermal management. Now, Asus has added the PG32UCDM and PG34WCDM gaming monitors, each based on a different OLED panel technology. 

The PG32UCDM uses a 32" QD-OLED panel, produced by Samsung Display. The PG34WCDM monitor is based on a 34" MLA (microlens) WOLED curved panel, produced by LG Display. Both monitors make use of a graphene film for heat dissipation.

Asus has unveiled the Asus ROG Swift OLED PG49WCD, a gaming monitor that uses graphene for thermal management. 

Image

Asus did not yet reveal the price or shipping date of the PG49WCD monitor.

Today we published a new edition of our Graphene for Displays and Lighting Market Report, with all the latest information. Graphene has high potential to improve LCD, OLED and MicroLED displays and can be used to enhance displays backplanes, electrodes, emitters and more. In addition graphene can increase efficiency in lighting devices and improve designs.

Reading this report, you'll learn all about:

• Graphene applications in LED and OLED lighting
• Graphene's adoption as a backplane for AMOLEDs
• Transparent graphene electrodes
• Graphene-based encapsulation development

The report package also provides:

• Graphene companies involved with display and lighting
• An introduction to graphene
• An introduction to lighting and displays
• Details about graphene for QDs, lasers and thermal foils

This market report provides a great introduction to graphene solutions for the display and lighting markets, and covers everything you need to know about graphene technologies in these niches. This is a great guide for anyone involved with the displays and lighting.

Researchers from China's Qingdao University and Shenzhen University have developed a graphene-based proof-of-concept for a skin-friendly and wearable textile-based touch panel that converts a person's forearm into a keyboard or sketchpad. The three-layer, touch-responsive material translates what a user sketches or types into computer pictures.

Computer trackpads and electronic signature capture devices are not common in wearables. Researchers have proposed constructing flexible touch-responsive panels out of clear, electrically conductive hydrogels, but these materials are sticky, making writing on them difficult and uncomfortable for the skin. As a result, the research team sought to combine a comparable hydrogel into a comfortable fabric sleeve for drawing or playing computer games.