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High resolution and fast switching electro-optic modulators for TFT inspection

A technology of modulator and liquid crystal layer, applied in the field of liquid crystal materials

Active Publication Date: 2016-12-28
ORBOTECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the above 3 methods may be suitable for small-scale and academic research

Method used

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  • High resolution and fast switching electro-optic modulators for TFT inspection
  • High resolution and fast switching electro-optic modulators for TFT inspection
  • High resolution and fast switching electro-optic modulators for TFT inspection

Examples

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example 1

[0093] Example 1. Preparation of a nematic curvilinear alignment phase (NCAP) liquid crystal layer

[0094] 2 grams of nematic liquid crystal (MLC-2156 from EMD Chemical Co.) was mixed with 1 gram of octane to form a clear solution. This was made by 2.5 grams of Neorez R-967 (from DSM) and a mixture of 1.5 grams of water, 0.16 grams of Surfynol DF-62 (from Air Products), 0.04 grams of TWEEN 60 and 0.06 grams of FSN (from DuPont). The LC / organic solvent mixture is emulsified to form an emulsion. Subsequently, this emulsion was coated on an ITO Mylar film and laminated with another ITO Mylar film after allowing the water and octane to evaporate completely. For comparison, Sample 2 was made by the same procedure as above but without the use of octane. Also, Sample 1 was fabricated by the same procedure as Sample 2 but using a liquid crystal having a lower optical anisotropy.

[0095] figure 1 Decay times are shown for three different films: Sample 1, an NCAP made of Liquid ...

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Abstract

The present invention provides a method of preparing a nematic curve alignment phase (NCAP) liquid crystal layer having a plurality of elongated liquid crystal droplets using an aqueous solution and an organic solution, wherein water is removed and then the organic solvent is removed. The present invention also provides a modulator using the NCAP liquid crystal layer of the present invention.

Description

[0001] priority claim [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 181,694, filed June 18, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a liquid crystal material for use in electro-optical applications. More specifically, embodiments of the present invention relate to liquid crystal / polymer composites and methods and apparatus for making and using such composites. Background technique [0004] Voltage imaging technology can be used to detect and measure defects in flat thin film transistor (thin film transistor (hereinafter referred to as TFT) arrays. According to this measurement technique, the performance of a TFT array is simulated as if it were assembled into a TFT unit, and then by using an electro-optic (hereinafter referred to as EO) based optical The modulator's detector indirectly measures the actual voltage distribution on the panel or perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334
CPCG02F1/1334G01N21/1717C09K19/02G01N2021/1721G01N2021/177
Inventor 陈仙海丹尼尔·托特
Owner ORBOTECH LTD