Samsung has developed a new depositiong source tech for high-resolution flexible OLED panels

20 August 2018, 04:30:40

Samsung has developed a new depositiong source tech for high-resolution flexible OLED panelsAccording to ETnews, Samsung Display has developed a new deposition source technology which will be applied to the next generation production line of flexible OLED panels. The manufacturer is preparing to change the evaporation source, which is a core part of the deposition equipment, to a new surface source method. The existing technology uses an evaporator that evaporates the powdered organic matter and sticks it to the substrate using high temperature. The key moment here is to do so evenly and created an extremely thin layer. Samsung Display uses Japan's Canon Dockyard evaporator and its own linear type of deposition technology as a source. This means that several nozzles are arranged side by side in a thin rectangular shape. When heat is applied, the organic matter will evaporate and sticks to the substrate above. This technology is the most stable, but it is not applicable to a 4K resolution for small and medium-size flexible OLEDs. Samsung Display seems to be looking for a solution by upgrading the deposition source technology. The current linear source method must move the source position several times in order to deposit one substrate. The surface source method deposits over the entire substrate area at one time. This allows the manufacturer to shorten production times and achieve a more accurate deposition which is crucial for high resolutions. Most probably, the new source deposition technology will be applied in Samsung's A5 plant as it can differentiate it from the linear source method and improve the product performance and productivity.Source

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Specifications

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