LG Chem has joined forces with Universal Display Corp. (UDC) in the United States to strengthen the competitiveness of its OLED panels by improving their image quality.
LG Chem announced on Sept. 4 that it signed a partnership with UDC to improve the performance of light emitting layers, a key OLED material. An OLED is composed of multiple layers, including a common layer where electrons(-) and electron holes(+) move, a light emitting layer that actually emits light. A light emitting layer is a core material that emits light by combining electrons and holes injected from a common layer. It is made of a dopant which emits a specific color and a host which helps the dopant emit light.
LG Chem excels in making low-voltage, long-life hosts among raw materials for light emitting layers. Its hosts have a long life even at a low voltage. On the other hand, UDC is strong in high-efficiency, high-performance phosphorescent dopants and its dopants boast excellent efficiency, high color reproduction and a long life.
High color reproduction is a technology that raises the color gamut of a display in order to reproduce colors of an image similar to its actual colors on the display. The higher color reproduction performance is, the more vivid colors can be displayed on a display. The two companies plan to find the best combination and develop products with the highest color reproduction performance.