Light control device and display device using the same
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United States of America Patent
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May 8, 2018
Issued Date -
N/A
app pub date -
Jul 18, 2017
filing date -
Jul 18, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A light control device and a display device using the same. The light control device includes a polymer networked liquid crystal (PNLC) or polymer dispersed liquid crystal (PDLC) display switchable between a scattering state and a first display state, and a guest-host (G-H) liquid crystal display (LCD) switchable between a transparent state and a second display state. A light source of the G-H LCD is disposed at a side of the PNLC or PDLC display and aligned to its liquid crystal layer. In a first operational mode, the PNLC or PDLC display is switched to the first display state, and the G-H LCD is switched to the transparent state and becomes transparent. In a second operational mode, the G-H LCD is switched to the second display state, and the PNLC or PDLC display is switched to the scattering state to function as a light guide layer for the G-H LCD.
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