LG Display showcases stretchable display panels

LG Display released the first 12-inch, 100PPI resolution, full-color display panel with 20% stretch on November 8.

The display panel uses a highly elastic film-type substrate made of special silicon used in contact lenses, which is as flexible as a rubber band and can be stretched up to 14 inches. More importantly, this stretchable display uses a Micro LED light source with a pixel pitch of less than 40μm, which not only ensures that the panel will not lose resolution due to bending or stretching characteristics but also ensures a high level of durability and can withstand large external shocks.

Micro LED is considered the next-generation display technology in the industry. Different from the Mini LED that has gradually entered the public eye in recent years, the biggest change of Mini LED compared to the LCD screen with traditional TFT structure is the increase in the number of backlight partitions, which can achieve higher contrast, higher peak brightness, and continuous brightness. Take the iPad Pro with the new 12.9-inch M2 chip as an example. The Mini LED screen it uses has 2596 backlight partitions and the maximum full-screen brightness is 1000 nits. The evolution version of Mini LED is Micro LED. At present, the size of a Mini LED is generally 100-200 μm, while the size of a Micro LED can be 1-10 μm. It seems that Mini LED and Micro LED are only different in size, but the principle of Micro LED is closer to OLED. When the size of the Micro LED is small enough, each Micro LED can be compared to a sub-pixel in OLED. Multiple Micro LEDs or sub-pixels can form a complete pixel, and more pixels can form a picture.

However, LG Display did not disclose some specific parameters of the panel, including information such as brightness and contrast, which may also be related to the early stage of the technology.

We will successfully complete this project to enhance the competitiveness of Korean display technology while continuing to lead the industry’s paradigm shift,” remarked Soo-young Yoon, Executive Vice President, and CTO at LG Display.