31.2: Vertically Aligned Field‐Sequential Microdisplay

Anderson, James E.; Gandhi, Jignesh; Erdmann, John H.

doi:10.1889/1.1830942

Cited by 11 publications

(10 citation statements)

References 5 publications

(2 reference statements)

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“…In optical engine system, the operational temperature of LCOS panel was assumed to be about 40~55 degree C [3,4]. The relationship between temperature and response time was studied 650nm 450nm 550nm…”

Section: Figure 2 Simulation Results Of R-v Curve On 2 µM Cellmentioning

confidence: 99%

39.4: Fast Switching VA Mode LCOS for Single Panel Application

Liao¹,

Peng²,

Chiu³

2005

SID Symposium Digest

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Reflective LCOS (liquid crystal on silicon) microdisplays are widely used in various projection and near-eye application. For single panel projection system, liquid crystal response time is an important variable. The panel must switch fast enough to support field color sequential display with high field rates. In order to have fast response and good contrast, a vertical alignment (VA) cell was used in this study. In this study, we report cell design results of single panel VA mode LCOS.By simulation, with suitable selection on LC parameters like temperature, viscosity, elastic constant and birefringence, it is possible to get response time of around 2ms from a 2.0 um-thick vertical alignment cell. The experimental result also indicated good consistency with simulation from room temperature to 45 degree C.

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Section: Figure 2 Simulation Results Of R-v Curve On 2 µM Cellmentioning

confidence: 99%

39.4: Fast Switching VA Mode LCOS for Single Panel Application

Liao¹,

Peng²,

Chiu³

2005

SID Symposium Digest

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“…This mode is the most promising in terms of performance [5]. This mode can achieve contrast ratios orders of magnitude higher than other modes.…”

Section: Vertically Aligned Nematic (Van)mentioning

confidence: 94%

Liquid crystal designs for high-contrast field sequential color liquid crystal on silicon (LCoS) microdisplays (Invited Paper)

Anderson¹,

Chen

Bos

2005

SPIE Proceedings

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Single or dual panel microdisplay systems are becoming more popular in the marketplace. Consequently, Liquid Crystal on Silicon (LCoS) microdisplays are constantly being pushed to achieve faster switching times as well as higher contrast, while becoming simpler and allowing simpler optics engine design. Currently, most products use a Twisted Nematic (TN) mode with a retardation film. The most promising solution in research now is the Vertically Aligned Nematic (VAN) mode, which does not require a retarder.

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“…For example, the normally white selfcompensated 60° twisted nematic mode has poor contrast off-axis [12], which indicates its contrast ratio should benefit from increasing f-number as the experimental results from other twisted nematic modes show [13]. However, the contrast of the uncompensated normally black vertically aligned mode actually worsens with increasing f-number when a high pretilt angle (from vertical) is used to discourage defects [14].…”

Section: Impact Of Lasers On Lcos Lc Designmentioning

confidence: 99%

39.1: Distinguished Paper: Laser+LCOS Technology Revolution

Guttag¹,

Hurley²,

Mei³

2011

Symp Digest of Tech Papers

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The advent of affordable direct diode lasers changes all the rules for optical designs and the associated technologies that generate the images from the laser light. We foresee these new lasers as driving fundamental changes in the size, power consumption, cost, resolution, and even the uses for pico projectors. This paper discusses these topics from the perspective of laser light illuminated LCOS microdisplays.

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31.2: Vertically Aligned Field‐Sequential Microdisplay

Cited by 11 publications

References 5 publications

39.4: Fast Switching VA Mode LCOS for Single Panel Application

39.4: Fast Switching VA Mode LCOS for Single Panel Application

Liquid crystal designs for high-contrast field sequential color liquid crystal on silicon (LCoS) microdisplays (Invited Paper)

39.1: Distinguished Paper: Laser+LCOS Technology Revolution

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