SYSTEM FOR DRYING PATTERNED ORGANIC LIGHT-EMITTING DIODE FORMULATION

To precisely and uniformly remove a carrier liquid from organic light-emitting diode materials deposited using inkjet technology to prevent variation in pixel and display quality.SOLUTION: There is provided a drying chamber for drying a substrate patterned with display areas wetted by organic light-...

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Bibliographic Details
Main Authors CONOR F MADIGAN, ALEXANDER SOU-KANG KO
Format Patent
LanguageEnglish
Japanese
Published 02.04.2024
Subjects
ELECTRICITY
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Summary:To precisely and uniformly remove a carrier liquid from organic light-emitting diode materials deposited using inkjet technology to prevent variation in pixel and display quality.SOLUTION: There is provided a drying chamber for drying a substrate patterned with display areas wetted by organic light-emitting diode materials dissolved or suspended in a volatile carrier liquid and separated from one another by dry boundary regions. A mask adjusts drying rate of the carrier liquid during vacuum extraction using vapor-transmissive areas opposite the wet areas and vapor-barrier regions opposite the dry boundary regions, or by confining the wet areas collectively in the drying chamber with a volume small enough to quickly saturate with the carrier liquid before vacuum extraction.SELECTED DRAWING: Figure 1 【課題】インクジェット技術を用いて堆積させた有機発光ダイオード材料からキャリア液を精密かつ均一に除去して、画素および画質のばらつきを防ぐ。【解決手段】揮発性キャリア液に溶解または懸濁した有機発光ダイオード材料で湿潤化され、乾燥境界領域によって互いに分離された表示領域がパターン形成された基板を乾燥させる乾燥室が提供される。マスクにより、湿潤領域に対向する蒸気透過領域と乾燥境界領域に対向する蒸気バリア領域とを用いて真空吸引時のキャリア液の乾燥速度を調整することによって、または、真空吸引前に迅速にキャリア液によって飽和する程度の低容積を有する乾燥室に湿潤領域をまとめて収容することによって、真空吸引時のキャリア液の乾燥速度を調整する。【選択図】図１
Bibliography:Application Number: JP20240001339