透明有機發光二極體螢幕之後景影像繞射演算與評估

Abstract

隨著人們的生活水準與質量越來越高，對於顯示器的要求更是與時俱增。透明顯示器技術作為新型顯示器技術，有著相當龐大的應用前景。透明顯示器的特色在於讓使用者能夠在觀看顯示器的內容的同時，也能夠觀看到顯示器背後所展示的事物，在應用方面，在展場做為展示櫃、汽車使用的HUD抬頭顯示器 (head up display) ，或者搭配智慧顯示及觸控技術，能夠使用在冰箱、水族箱等生活家電，可以實現比一般顯示器更強的互動感與使用感。 目前常見的透明顯示器為OLED透明顯示器，設計原理是將畫素集中排列，而沒有畫素的部分使用透明材料，使觀看者可以透過顯示器觀看到顯示器後的影像。由於每個透明區域的面積都很小，因此光通過顯示器時會出現光的繞射現象，導致後景影像的影像品質下降。論文的目標是建立一個演算法，經由數學軟體即能夠快速且精確的演算出後景影像在經過透明顯示器後的成像結果與品質的評估，進而使用此演算法來開發出新型的透明顯示器，以減少繞射現象對後景影像的影響。

Recently, transparent organic light-emitting diode (TOLED) display has presented itself to be a new choice in display technologies. As such, the research and development of TOLED is gradually seeing more focus in present display related fields. With transparent display technology, one can accomplish tasks which ordinary display technology cannot complete alone. While watching the contents of the display panel, contents behind the display can be seen as well. In terms of application, TOLED can be used as a head up display, or can be used in refrigerators, aquariums and other household appliances with touch technology, which can achieve more interactivity than general displays. One of the most common transparent display is the OLED transparent display. The design principle is to concentrate the pixels in a certain area, and the areas without pixels are made to be the transparent part of the display. However due to the periodic nature of the display structure, diffraction phenomenon occurs as light passes through the panel, causing the blur in the background image. The aim of this work, therefore, is to develop a method to quickly and accurately evaluate the influence on the background image caused by the transparent display, as a transfer function acting on the background image, to assist in further optimization of the display structure.