Research on Copyright Technology that Supports Generative AI-based Webtoon Content in an On-device Environment

The webtoon industry is undergoing innovation in creation methods with the advancement of AI.Generative AIis being utilized throughout the webtoon production pipeline – from scenario writing and drawing assistance to style transfer and multi-language translation – thereby improving creative efficiency.At the same time, as AI models learn artists' distinctive styleswithout permission and generate content resembling existing works, copyrightcontroversies have intensified.This study examines the current state of generative AI technologies supporting webtoon creation and explores corresponding copyright protection measures.In particular, it investigates the use of AI in an on-deviceenvironment, whereby creators can safely use AI tools without their data leaving their device.Through this, we suggest technical and policy directions that enable generative AI to be used as a creative assistant in webtoons while safeguarding creator rights.