Large-format optical polarization pattern generation device and generation method

Abstract

The invention discloses a large-format optical polarization pattern generation device which comprises an illumination component, a polarization pattern generation component, a miniature imaging component and an imaging detection and splicing component which are connected in sequence. The illumination component is used for realizing single polarization collimation of uniform surface light spots; the polarization pattern generation part comprises a quarter-wave plate and a phase modulator and is used for outputting a polarization pattern; the miniature imaging component is used for miniaturizingthe polarization pattern output by the polarization pattern generation part and writing the miniaturized polarization pattern into the photosensitive material; the imaging detection and splicing component comprises an imaging detection sub-part and a focal length calibration sub-part; and the imaging detection sub-part comprises a double-light-path pattern monitoring imaging assembly and a pattern splicing assembly. The integrated optical system, the motion control system and the detection system have the advantages that the single-exposure polarization pattern is high in precision, optionally controllable and high in efficiency, large-area optical polarization patterns can be realized, and the like.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a large-format optical polarization pattern generation device and generation method. Background technique [0002] Liquid crystals are widely used in information display, optical and photonic devices and other fields; liquid crystals can further realize the amplitude, phase and polarization modulation of light according to the designed orientation arrangement, which plays an important role in these applications, so the orientation of liquid crystals Alignment control methods have become a research hotspot in academic and industrial production. The existing technologies disclosed at present are mainly rubbing alignment technology and light-controlled alignment technology: [0003] The patent application number CN201721714019.8 discloses an orientation layer rubbing device used in the production of liquid crystal display screens; rubbing orientation is to use materials such as...

AI Technical Summary

Problems solved by technology

However, there are the following problems: static electricity is easily generated during the friction process, which will cause the breakdown of the thin film transistor, and due to the fluff dust generated during the friction process, cleaning and drying processes must be added after friction, which reduces production efficiency

[0005] Among them, the problems of mask engraving polarization pattern technology are: overlaying is too difficult, low efficiency; low precision; it is difficult to produce large format; the mask is in contact with the photosensitive adhesive layer on the wafer, causing damage

[0006] The periodic liquid crystal alignment technology ob...

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