High performance LCD for augmented reality and virtual reality displays

Talukder, Javed Rouf; Huang, Yuge; Wu, Shin‐Tson

doi:10.1080/02678292.2018.1540067

Cited by 26 publications

(13 citation statements)

References 33 publications

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“…The issue is that the liquid crystal on the trunk in the center of Figure 2 does not rotate and, therefore, does not contribute to the brightness. Thus, improving transmittance is an important issue for SLC‐IPS 30 . The width of the trunk cannot be altered even when the pixel size is small owing to manufacturing constraints.…”

Section: Short‐range Lurch Control In‐plane Switching Modementioning

confidence: 99%

“…SLC‐IPS is a LCD mode that enables high‐speed operation simply using the electrode structure from the conventional widely used IPS mode. Recently, a similarly fast LCD mode has been actively studied using only the electrode structure 27–30 . Its simple construction makes it suitable for use in VR‐HMDs that require high‐resolution viewing; however, the reduction in transmittance because of the unique electrode structure of SLC‐IPS is an issue.…”

Section: Introductionmentioning

confidence: 99%

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Fast response in‐plane switching liquid crystal display mode optimized for high‐resolution virtual‐reality head‐mounted display

2020

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We propose to apply short‐range lurch control in‐plane switching (SLC‐IPS) as a fast response liquid crystal display (LCD) mode to virtual reality applications, where fast response times and high resolutions are essential. In this study, we discuss the SLC‐IPS electrode structure optimized for high‐resolution virtual reality applications. To maintain transmittance at high resolutions, we developed a one‐sided branch electrode structure with convex parts. The issue of slow response times can be resolved using the convex part of the electrode structure by analyzing the imaginary boundaries characterizing the SLC‐IPS. Thus, a response time of less than 2.2 ms can be obtained over all tones using a 1001‐ppi high‐resolution SLC‐IPS LCD.

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Section: Short‐range Lurch Control In‐plane Switching Modementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fast response in‐plane switching liquid crystal display mode optimized for high‐resolution virtual‐reality head‐mounted display

2020

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“…As α>1.5°, the transmittance starts to decline gradually (due to decreased phase retardation) while response time remains more or less unchanged. Therefore, the optimal rubbing angle lies between 1.2° and 2.0° [9]. Fig.…”

Section: Device Structure and Simulation Resultsmentioning

confidence: 96%

“…We study the transitions between 0, 64, 128, 192 and 255 gray levels. The GTG response time (rise and decay) is defined between 10% and 90% transmittance change.We have calculated the average GTG response time is found to be 5.35 ms for α=0°, and 8.81 ms for α=1.5° [9]. The faster average GTG response time for α=0° is expected because of the virtual walls.…”

Section: Motion Picture Response Time (Mprt)mentioning

confidence: 85%

66‐2: High transmittance and fast response FFS LCD for AR and VR displays

Talukder

Huang

2019

Symp Digest of Tech Papers

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By using a low viscosity material and new diamond-shaped electrode configuration, we report a fringe field switching liquid crystal display with high transmittance, fast response time, low operation voltage, wide viewing angle and indistinguishable gamma shift. Promising applications for high-resolution and image-blur-free displays, such as augmented reality and virtual reality, are foreseeable.

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“…In 2018, Google and LG presented 18M-pixel 4.3-inch 1443-ppi 120-Hz OLED display for VR head mounted displays (HMDs) [2]. Although OLED presents faster emission time (μs level) than conventional LCD response time (~10 ms), Wu's group reported the motion picture response time of OLED and submillisecond-response LCD is comparable [3][4]. In addition, high PPI OLED encounters serious mura effect so that external compensation method is used.…”

Section: Introductionmentioning

confidence: 99%

66‐3: Submillisecond‐Response 10‐Megapixel 4K2K LCoS for Microdisplay and Spatial Light Modulator

Yang

Chen

Huang

et al. 2019

Symp Digest of Tech Papers

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The NCTU PCU-3-02 10-megapixel 4K2K (max. 4160x2464) LCoS panels with LCM-1107 nematic LC were assembled and evaluated. The results of both 1.2-inch 4K2K (~4,000 PPI) amplitude type LCoS microdisplay and 0.7-inch 4K2K (~7,000 PPI) phase-only type LCoS spatial light modulator (SLM) can achieve 1~2 ms response time at T=45 o C. Meanwhile, the phase linearity, precision and accuracy of 4K2K LCoS-SLM were assessed in this work. These new LCoS schemes will potentially be utilized in color-sequential, holographic, virtual and augmented reality display.

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High performance LCD for augmented reality and virtual reality displays

Cited by 26 publications

References 33 publications

Fast response in‐plane switching liquid crystal display mode optimized for high‐resolution virtual‐reality head‐mounted display

Fast response in‐plane switching liquid crystal display mode optimized for high‐resolution virtual‐reality head‐mounted display

66‐2: High transmittance and fast response FFS LCD for AR and VR displays

66‐3: Submillisecond‐Response 10‐Megapixel 4K2K LCoS for Microdisplay and Spatial Light Modulator

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