Simulation and Analysis of Liquid Crystal on Silicon Pixels for Augmented Reality and Holography Applications

Since its invention in the early 1970s, liquid crystal on silicon (LCoS) technology has proven its success in a wide range of fields such as displays, adaptive optics, lithography and telecommunications. Recently, holographic near-eye displays using LCoS as a key optical component opened a new era for computer-generated holograms. The LCoS-based spatial light modulator (SLM) has been widely implemented in virtual reality (VR) and augmented reality (AR) displays because of its high luminance, compactness, high-resolution density, and low driving voltage. Commercial VR and AR head-mounted devices using LCoS-SLM such as Oculus Rift, HTC Vive, Google Glass, and Microsoft HoloLens were announced and released in the past few years. However, the cutting edge LCoS still needs improvement to meet the stringent requirements for low latency and high resolution AR systems. That increases the difficulty in the design and optimization of LCoS pixels.

In this webinar, we will show the way of analyzing a phase-only LCoS-SLM using the simulation tool Clever LCD. Specifically, issues arising in driving the pixels and in shrinking the pixel size will be presented.

What attendees will learn:

  • How to create a LCoS cell with real pixel shape
  • Static and dynamic simulation for the phase retardation of a LCoS-SLM
    • Digital and analog driving schemes
    • Frame rate and phase flicker analysis
    • Pixel cross talk and phase uniformity at scaling down

 Sungwon Kong

Presenter:

Dr. Debin Li is a senior TCAD application engineer in Silvaco Japan. He is responsible for various TCAD supports with specialty in displays and photonics. He has over 15 years of experience in TCAD modeling and simulation.

Dr. Li holds a BS and MS from Tsinghua University in Beijing, China, and a Ph.D. from Arizona State University in Tempe, Arizona, USA.


Who should attend:

Researchers, engineers, and manufacturers seeking solution to the design and analysis of LCoS devices.