A perspective-symmetric optical modulation device and its application

TW202642255APending Publication Date: 2026-10-16JIANGSU HECHENG DISPLAY TECH CO LTD
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Patent Information

Application Number
TW114151759
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-12-31
Filing Date
2025-12-29
Publication Date
2026-10-16

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Abstract

This invention provides a viewing angle-symmetrical optical modulation device and its application. The viewing angle-symmetrical optical modulation device includes at least two layers of guest-host liquid crystal dimming devices and a waveplate with an optical path length equivalent to 1 / 2λ, the waveplate being located between the at least two layers of guest-host liquid crystal dimming devices. The optical modulation device of this invention has advantages such as a centrally symmetrical viewing angle, a wide superposition angle, low operating voltage, simple structure, and low production cost. This invention also provides an application of the viewing angle-symmetrical optical modulation device.
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