Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Active liquid crystal polarized optical grating structure with one-sided orientation mode and preparing method thereof

A liquid crystal polarization grating and orientation technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of a large number of active liquid crystal polarization grating substrates and large energy loss, achieve refractive index matching, reduce light leakage, and have a wide range of applications. Foreground effect

Active Publication Date: 2019-02-22
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF9 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a single-side orientation active liquid crystal polarization grating structure and its preparation method, which can solve the current problems of large number of active liquid crystal polarization grating substrates, large energy loss and serious light leakage.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active liquid crystal polarized optical grating structure with one-sided orientation mode and preparing method thereof
  • Active liquid crystal polarized optical grating structure with one-sided orientation mode and preparing method thereof
  • Active liquid crystal polarized optical grating structure with one-sided orientation mode and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] 1. Preparation of unilaterally oriented active liquid crystal polarization grating

[0027] 1) figure 1 The structure of the single-side alignment active liquid crystal polarization grating is given, which includes a conductive substrate, an optically controlled alignment conductive substrate, and a liquid crystal layer. , a photoalignment agent, the photoalignment agent is in contact with the liquid crystal layer.

[0028] 2) Preparation of the glass substrate. First, the substrate is cleaned. After drying, an ITO conductive film is deposited on one side of the substrate with a thickness of about 20nm. Apply a photoalignment agent with a thickness of about 80nm, and cure the photoalignment agent at 230°C.

[0029] 3) Exposure of the photoalignment conductive substrate, place the above-mentioned substrate spin-coated with the photoalignment agent on figure 2 Exposure is carried out in the holographic interference optical path shown, and the photoalignment agent unde...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an active liquid crystal polarized optical grating structure with a one-sided orientation mode and a preparing method thereof, belongs to the technical field of non-mechanicallight beam deflection in driving optoelectronic systems, and mainly aims at solving the problems in the prior art that the number of active liquid crystal polarized optical grating substrates is large, the energy loss is large, and the light leakage problem is serious. The preparing method of the active liquid crystal polarized optical grating structure breaks the traditional sequence of box formation and exposure orientation, and the one-sided orientation mode of firstly conducting substrate exposure orientation and then conducting pressing box formation is adopted. By means of the active liquid crystal polarized optical grating structure and the preparing method thereof, the box formation uniformity of active liquid crystal polarized optical gratings can be improved, the light leakage isreduced, and the contrast ratio is increased. By means of the method, liquid crystal polarized optical grating and wave plate combination and integration box formation technology also becomes reality.

Description

technical field [0001] The invention belongs to the technical field of non-mechanical light beam deflection in active photoelectric systems, and specifically refers to a single-side orientation active liquid crystal polarization grating structure and a preparation method thereof. Background technique [0002] In an active optoelectronic system, factors such as the range, accuracy, speed, and stability of beam deflection often determine the performance of the entire optoelectronic system. The non-mechanical beam deflection system based on liquid crystal optical phased array has all-electric programmable control and small size. , light weight, low loss, fast agility, multi-target simultaneous recognition and detection and other huge advantages, so it has broad application prospects in the fields of laser radar, laser communication, laser guidance and so on. [0003] For a long time, due to the influence of phase depression and edge effect, the limited beam deflection range of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337
CPCG02B5/1833G02B5/3016G02F1/1337G02F1/133788G02F1/133757
Inventor 王启东穆全全刘永刚彭增辉姚丽双李松振赵志伟王承邈鲁兴海曹召良宣丽李大禹杨程亮张佩光徐焕宇张杏云
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com