Liquid crystal optical device and display apparatus

By using a specially designed liquid crystal optical device with a unique electrode structure, the ability to modulate light at any angle and its lightweight design have been achieved, solving the problems of large size and heavy weight of existing liquid crystal lenses.

WO2026129086A1PCT designated stage Publication Date: 2026-06-25BOE TECHNOLOGY GROUP CO LTD +1

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
BOE TECHNOLOGY GROUP CO LTD
Filing Date
2024-12-16
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing liquid crystal lenses suffer from the problem of large size and weight of mechanical control modules, making it difficult to achieve modulated light at any angle.

Method used

It employs a special electrode structure design, including a first electrode structure with a hollow pattern and a second electrode structure consisting of multiple closed or non-closed ring-shaped sub-electrodes. By precisely controlling the voltage distribution and the arrangement of liquid crystal molecules, the illuminance distribution of the emitted light can be regulated.

Benefits of technology

It achieves the moduliability of light at any angle within ±75°, improves the portability and light utilization efficiency of the device, and solves the problems of large size and weight.

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Abstract

At least one embodiment of the present disclosure provides a liquid crystal optical device and a display apparatus. The liquid crystal optical device comprises a first substrate, a second substrate, and a liquid crystal layer. The first substrate comprises a first base substrate and a first liquid crystal control layer. The first liquid crystal control layer comprises a first electrode structure, and the first electrode structure has a hollowed pattern. The second substrate comprises a second base substrate and a second liquid crystal control layer. The second liquid crystal control layer comprises a second electrode structure. The second electrode structure comprises a plurality of second repeating units. Each second repeating unit has a closed or open ring-shaped structure, and each second repeating unit comprises a plurality of sub-electrodes spaced apart from each other. The plurality of sub-electrodes include a first sub-electrode and a second sub-electrode located on the outer side of the first sub-electrode. The width of the first sub-electrode is greater than the width of the second sub-electrode. The liquid crystal optical device can regulate the illuminance distribution of emitted light, thereby solving the problems of large size and heavy weight of a mechanical regulation module.
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