It is an object of the invention to provide a document display apparatus capable of displaying a plurality of documents which are related to each other in high visibility as a whole without displaying the plurality of documents on single display means at the same time. When a document selecting area...http://www.google.com.tw/patents/US6289361?utm_source=gb-gplus-share專利 US6289361 - Document display apparatus for displaying a plurality of multimedia documents
