Preparation of Liquid Crystal Alignment Layer with Graphene

• Main Authors: LEE, SOO CHAN, OH, JU YEONG, SOHN, JI SOO, JUN, SEONG CHAN, YOUN, HYUNG SEO
• Format: Patent
• Language: English; Korean
• Published: 23.03.2015
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The present invention relates to a method for manufacturing a liquid crystal alignment layer used in a display device using graphene which is generated by a chemical method and, more particularly, to a method for manufacturing an alignment layer of a liquid crystal display by replacing a polyimide (PI) alignment layer to perform a rubbing process of the liquid crystal alignment layer which is essentially performed in an existing liquid crystal display device manufacturing process with the graphene without the rubbing process. The performance of a product is improved by preventing a non-uniform alignment layer, a light leakage, and a spot due to the rubbing process in a liquid crystal display device manufacturing process by manufacturing the alignment layer without the rubbing process. The thickness of the existing liquid crystal display device is remarkably reduced by the thin thickness of the graphene. Also, heating is reduced by saving the intensity of a light source by increasing the transmittance of light in comparison with PI which is the existing material of the alignment layer.