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The opening decade of the 21st century has proven to be a memorable one for the East Asian horror industry, which has emerged as one of the best (if not the best) sources of horror in the world in terms of both quality and creativity. For those who have grown tired of the mainstream American formula, there is much to enjoy when one explores the cinema of Japan and South Korea. In a general sense, their characteristics are definitively anti-Hollywood.
For viewers who hold these traits in high regard, East Asian horror (which also includes the industries of China, Thailand, and Indonesia) is a virtual treasure trove of entertainment that explores far beyond the onryo mythos (i.e. ghost girls with long black hair) to provide a wide spectrum of interesting themes, concepts, and styles that are frequently ignored by many critics and/or viewers who mistakenly extrapolate the onryo mythos to the entire industry.

http://www.cultreviews.com/articles/the-50-best-asian-horror-films/3/