曲面式視差障壁型裸眼式立體顯示器設計參數之研究

Study on the Design Parameters for a Curved Barrier-type Autostereoscopic Display

程筠婷(Yun-Ting Cheng)

指導教授 ： 林晃巖

國立臺灣大學/電機資訊學院/光電工程學研究所/碩士(2015年)

https://doi.org/10.6342/NTU.2015.10749

摘要

顯示影像的方式從平面進展到立體，並在硬體不斷的研發進步之下，立體影像技術不斷提升，其中以裸眼式3D立體顯示技術最廣為大眾所驚艷，其擁有不需配戴眼鏡的優勢，使用彈性較高。近年來，可撓(曲)式顯示器的崛起，使得曲面顯示技術議題逐漸加溫，彎曲的顯示螢幕具有螢幕擴大的感受以及可設計為符合人眼舒適感受的曲線，往提供更為逼真舒適的自然視覺推展，因此更可以期待曲面式裸眼式顯示器的未來發展。
對裸眼式3D立體顯示器而言，觀賞位置與可在觀賞位置附近的可移動範圍強烈影響觀賞品質；觀賞視域描述在顯示器前，觀賞者可體驗3D視覺感受的可移動範圍。而就曲面式裸眼式立體顯示器來說，曲率半徑以及螢幕的大小決定相對彎曲程度，彎曲程度不同時，顯示器提供的空間光分佈隨之改變，對於以分光達到將不同視差影像送進左右眼的立體顯示器，是影響觀賞影像品質的關鍵因素。
因此基於前人研究計算出的觀賞視域公式，本論文將推導曲面式視差障壁型裸眼式3D立體顯示器的設計觀賞位置公式並描繪出觀賞視域，藉由調變相關參數，探討曲率半徑、螢幕寬度等對觀賞視域大小與位置的影響，並加入交互干擾評估影像品質。
本篇論文的研究將提供未來可彎曲式基板結合3D顯示器領域參數設計的參考，回饋規格設計製造端；也期許未來可撓(曲)式3D立體顯示器的發展，能以此論文的論點作為深入研究的基礎。

關鍵字

3D ； 裸眼式顯示器 ； 曲面 ； 曲率半徑 ； 設計參數

並列摘要

The advance in autostereoscopic 3D display technology has impressed the world. No need to wear glasses and various use are the main advantages of 3D autostereoscopic displays. In recent years, many curved displays spring up and are heatedly debated. Curved displays provide screen-enlarged perception and ability to the curve design which comforts our visual experience. Therefore, in the progress of providing a more natural and comfortable visual experience, a curved autostereoscopic display is highly expected in the future.
For an autostereoscopic display, viewing position and the range nearby strongly affect image quality. Viewing zone describes the range a viewer could move while experiencing 3D perception in front of the display.
Regarding a curved autostereoscopic display, radius and width of the screen determine the relative degree of bending, by which the spacial light distribution is determined. In addition, this is a key factor influencing image quality, especially for the display which directs the views for left and right eyes based on binocular parallax.
In this thesis, the formula for a curved barrier-type autostereoscopic display will be derived, based on previous research on the calculation of viewing position and viewing zone for a planer barrier-type autostereoscopic display. Furthermore, with the aid of the ray-tracing software, the viewing zone will also be depicted and discussed as given different curvature radius or width of the screen. Finally, the image quality will be discussed by considering crosstalk in each case.
The purpose of this thesis is to provide a parameter-design reference for a curved autostereoscopic display. We look forward to the advance in curved autostereoscopic displays, and the contribution of this thesis to further research on curved autostereoscopic displays.

並列關鍵字

3D ； autostereoscopic display ； curved ； curvature radius ； design parameter

參考文獻

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