POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, CIRCUIT BOARD, OPTICAL DEVICE AND ELECTRONIC DEVICE USING THE SAME

The present disclosure relates to a polyimide-based polymer film comprising a polyimide-based polymer containing a polyimide repeating unit synthesized by the reaction of an acid anhydride compound having a specific structure and a diamine compound, wherein an average transmittance at a wavelength o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEE, Min Wook, PARK, Chan Hyo
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present disclosure relates to a polyimide-based polymer film comprising a polyimide-based polymer containing a polyimide repeating unit synthesized by the reaction of an acid anhydride compound having a specific structure and a diamine compound, wherein an average transmittance at a wavelength of 380 nm or more and 780 nm or less is 60% or more, and a thickness direction retardation value at a thickness of 10 pm is 150 nm or less, and a substrate for a display device, a circuit board, an optical device, and an electronic device using the same.