Peng Junmin team AMOLED display technology breakthrough foreign monopoly
- May 23, 2018 -

After two rounds of reply, the review experts recognized our results. I am very happy to receive this award. "Peng Junyi, a professor from South China University of Technology, felt that after winning the first prize for the Guangdong Province's technological invention in 2017, he said, "This is also the result of the team's joint efforts. ”

Under the support of the core scientific research achievements of the Peng Junyu team, South China University of Technology and Guangzhou New Horizon Optoelectronics Technology Co., Ltd. have developed a flexible next-generation semiconductor (AMOLED) display with the first oxide thin film transistor technology in China, in the ultra-clear flexible display field. Hit the mark of Guangdong's "smart creation."

Research is often at the forefront of technology applications, and the window of industrialization is short and urgent. Recently, when interviewed by Peng Junyu, he expressed the hope that the core technology of the team will achieve mass production as soon as possible, grab the first hand, and help Guangdong and China drive innovation and development.

Breakthrough foreign monopoly, core technology allows the display "roll up"

Since the birth of the monitor, people have not stopped pursuing high-resolution, full-color displays. From the CRT vacuum technology of the 1960s, the LCD technology of the 1990s, to the ultra-thin organic light technology of the early 21st century, the technology of the display industry is changing rapidly.

In August 2013, the advent of a film with a thickness of 0.01 mm and a weight of less than 1 gram caused a stir in the display industry. This is the first full-color flexible AMOLED display with the first oxide thin-film transistor technology in China. It was independently developed by South China University of Technology and New Horizon Vision. Peng Junmin said that no company dared to display the flexible screen for the audience to play, but we have this confidence.

The South China University of Technology team broke through the integration of key technologies for flexible high-definition display and adopted a new thin-film encapsulation technology, which made the flexible screen resistant to bending and curling. This flexible screen was tested and bent more than 100,000 times, the screen brightness only decreased by about 4.5%.

A key element of the display's ability to deliver high resolution, narrow bezels, and high integration is the speed at which electrons pass through semiconductor materials in thin-film-transistor devices, an industry-wide measure of mobility.

In order to optimize and improve this mobility performance, HGIC's research team spent 8 years. Peng Junhao found during the investigation that the low mobility of amorphous silicon materials in domestic semiconductor material production lines could not meet the demand of AMOLED display screens. If the materials of commercial oxide semiconductors invented abroad are used, although the migration rate is higher than that of amorphous silicon materials, due to the monopoly of intellectual property rights in foreign countries, equipment and materials are all dependent on imports.

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