LG starts mass production of circular plastic OLED panels.

prototype

LG Display announced on Sept. 4 that it started the mass production of circular plastic OLED display panels.

The panel has a 320×320 resolution and uses a plastic substrate with a diameter of 33.12 mm to form a perfectly circular shape. Its thickness is less than 0.6 mm.

The circular shape allows the area of the screen to be at least 57 percent wider than a square panel of the same size. Also, it comes with a color reproduction range of 100 percent, a maximum brightness of 300 nits, and an infinite contrast level, which means the panel is optimized for use in wearable devices.

LG Display also mounts a program switch module (PSM) onto the display, which allows the screen to display at the same resolution even without a power supply, and also saves power. 

The company developed a circular mask for organic material deposition and improved on the efficiency for mass production. Highly precise laser cutting and processing techniques have been incorporated into the manufacturing process too.

Press Release:

LG Display Starts Mass Production of World’s First Circular Plastic OLED Display.

LG Display, the world’s leading innovator of display technologies, announced today that it has started mass production of the world’s first circular Plastic OLED (P-OLED) display. The cutting-edge display will be used for the LG G Watch R to be showcased at IFA 2014 in Berlin, opening a new era of wearable devices by bringing innovative and stylish designs to such devices.

With a 1.3-inch diameter, the new innovative display is perfectly round and allows the LG G Watch R to have a full watch face, while promoting ease of use since the screen area is 57 percent larger than that of a square display of the same size. The world’s first P-OLED panel has an ultra slim thinness of less than 0.6mm, optimized for wearable devices. With 320X320 resolution, LG Display’s breakthrough display realizes 100 percent color gamut, 300nit peak luminance, and unlimited contrast ratio to enhance user satisfaction.

LG Display aims to realize the original intentions of wearable devices by enabling the screen to be turned on at all times while using the least amount of power with the Power Save Mode (PSM), which enables the screen to retain the same resolution–even without a power supply–from the power integrated circuit.

LG Display was able to achieve the world’s first mass production of circular P-OLED displays by
developing a circular mask that enables organic materials to be deposited simultaneously and a new production process that improves deposition efficiency while employing a highly precise laser cutting and processing technology.

“This first circular P-OLED display is yet another breakthrough that proves LG Display is ahead in OLED and the next-generation display technologies,” said Sang-Deog Yeo, Executive Vice President and Chief Technology Officer at LG Display. He added, “We will respond to the fast-growing wearable devices market by continuously developing innovative technologies to meet the needs and demands of various customers, thereby leading the market.”