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LG showed successful testing of hydrogen fluoride produced in Korea and began to use it on the production line.

According to BusinessKorea, LG has shown that it has completed testing of high-purity hydrogen fluoride produced in Korea and has begun to apply it to the production process. This is one month ahead of what was originally expected.

According to industry sources, LG Display recently completed the final test of high-purity hydrogen fluoride supplied by a Korean company and began to use it on the production line. According to the test report, the self-made hydrogen fluoride meets the production and cost requirements. According to reports, LG has shown that Korean hydrogen fluoride is applied to flagship panel production lines such as organic light-emitting diode (OLED) panels.

In addition, Samsung Display is expected to complete the test of high-purity hydrogen fluoride in Korea in September. At the moment, no critical issues have been identified in the test, and local products are likely to be used for mass production immediately after the final test. Previously, Samsung showed the use of hydrogen fluoride from Japanese and Korean materials companies.

Unlike semiconductor production lines that use nanoscale processes, display panel production does not require ultra-high purity hydrogen fluoride with a purity of 99.9999999999%. Hydrogen fluoride is primarily used for wet etching to remove defective coatings and to clean and remove organic materials and oxides on the surface of the display panel.

“LG Display said on August 24 that it would take some time to test domestically produced hydrogen fluoride, but it will be completed faster than expected.” An industry official said, “This test will make LG’s dependence on Japanese hydrogen fluoride greatly Lower, but ensuring the supply of ultra-high purity hydrogen fluoride is still a problem."