15.3: Invited Paper: Volume Holographic Components for Display Applications

Abstract

Volume holographic components are being used to enhance the performance of a variety of liquid crystal and projection display systems. Holographic components address the ever-present need within display systems for more efficient light management. With proper design, holographic components address this need with higher light throughput, reduced thickness and weight, reduced energy consumption, and additional opportunities for unique system functions. This paper describes design parameters and examples of improved devices by introducing the unique features of diffractive holographic components. These features include angular and spectral selectivity, high efficiency, and multiple optical functions designed into single components. Holographic reflectors, front diffusers, and compensations films have been developed and used in direct view liquid crystal displays. Holographic color filters and projection screens have also been developed based on this technology. For these applications the holographic component and system will be discussed. Finally, design considerations will be discussed that relate to the development of new display systems and components.

High Brightness Prism Light-guide Plate for TFT-LCDs Using Optical Simulation and Novel Injection Mold Process

“…4. On based the plan of simulation produced stamper processing Master of Stainless quality, and it embodied actual object through Injection molding using this stamper [4][5][6][7][8]. For complete reappearance of plan, molding product is applied to molding condition that can be formed a shape above 90 percentages in comparison of plan.…”

Applications of Holographic Optical Elements and Systems

“…(narrow spectral bandwidth)을 갖고 있어, 회절 광학소자, [1] 홀로그래픽 투영 스크린(holographic projection screen), [2] HMD(head mounted display), [3] 디지털 홀로그래피 디스플레 이(digital holography display) [4] 126 한국광학회지 제25권 제3호, 2014년 6월 …”

A high‐contrast front‐projection display system optimizing the projected light‐angle range

“…In order to solve this problem, the screen must separate the projected light from the ambient light and only diffuse the projected light to the observers. Several methods have been proposed to improve the contrast ratio of front-projection displays by suppressing the reflection of the ambient light by using different polarization methods, 2 spectra, 3,4 or incident directions between the projector and ambient light. 5,6 As for the former two methods, screens which reflect only one type of polarized light or narrow red, green, and blue spectra adjusted to the projector can be used.…”