UPDATED. 2024-03-28 05:14 (목)
Lordin files patent for high-efficiency blue OLED tech
Lordin files patent for high-efficiency blue OLED tech
  • Gijong Lee
  • 승인 2022.03.15 15:54
  • 댓글 0
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Company aiming for application in 2024
Image: Lordin
Image: Lordin

OLED material startup Lordin said on Tuesday that it has filed a patent related to blue OLED technology with high light emission efficiency.

Company CEO Oh Hyoung-yun said the technology offers high-efficiency and a longer life span for the blue OLED materials used in OLED panels.

Lordin was aiming to commercialize the technology on smartphones and TVs in 2024, the CEO said.

Oh claimed that the patent offers over 90% internal light emission efficiency in the blue OLED material.

This is triple that of the 25% in efficiency offered in current OLED panels used in smartphones and TVs, the CEO said.

To increase the efficiency to over 90%, single excitation and triplet excitation, which account for 25% and 75%, respectively, of the light emission energy of OLED materials, must be used.

This has been possible for red and green OLED materials but currently commercializes blue OLED materials only use single excitation.

Conventionally, phosphorescence materials are used for the red and green while fluorescence materials are used for the blue in OLED panels.

OLED material companies are searching for ways to use phosphorescence materials for the blue as well to increase their efficiency.

US OLED material firm UDC had said during its conference call for the fourth quarter that it is aiming to commercialize fluorescence blue OLED material in 2024.

However, Lordin’s blue OLED technology doesn’t use phosphorescence material. CEO Oh said the technology controls the energy transfer speed between molecules inside the material to increase efficiency.

Lordin has secured a total of 7.5 billion won in funding so far since it was founded in 2020.

The company has also developed the dopant for blue OLED phosphorescence material. It is aiming to market the dopant to display panel makers this year. Lordin is planning to list on South Korea’s stock exchange later this year.


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