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Functional resin composition for phase-shifting modulation element in which liquid crystal is used

A resin composition and phase modulation technology, applied in electrical components, waveguide devices, circuits, etc., can solve the problems of large scale and expensive equipment, and achieve the effect of high durability

Active Publication Date: 2020-01-14
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, when the satellite communication receiving side moves, a drive system for tracking the satellite is indispensable, and there is a disadvantage that the equipment is large-scale and expensive

Method used

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  • Functional resin composition for phase-shifting modulation element in which liquid crystal is used
  • Functional resin composition for phase-shifting modulation element in which liquid crystal is used
  • Functional resin composition for phase-shifting modulation element in which liquid crystal is used

Examples

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Effect test

preparation example Construction

[0171] As an example of a method of manufacturing a liquid crystal cell, a liquid crystal drive element with a passive matrix structure will be described as an example. It should be noted that a phase modulation element of an active matrix structure in which a switching element such as a TFT (Thin Film Transistor) is provided in each pixel portion may also be used.

[0172] Specifically, transparent glass substrates were prepared, a common electrode was provided on one substrate, and a segment electrode was provided on the other substrate. These electrodes can form, for example, ITO electrodes, and are patterned so as to realize desired driving of liquid crystals.

[0173] Next, drive control films are formed on the respective substrates, and the other substrate is stacked on one substrate so that the faces of the drive control films face each other, and the periphery is adhered with a sealant. In order to control the substrate gap, spacers are usually mixed in advance in the...

Embodiment 1

[0197] Take 2.10g (1.40mmol) of diamine (Z-1) and put it into a 100mL four-neck flask equipped with a stirrer, add 28.1g of N-methyl-2-pyrrolidone, and stir to dissolve it while feeding nitrogen gas. While stirring this solution, 2.69 g (1.37 mmol) of tetracarboxylic dianhydride (T-1) was added, and 7.03 g of N-methyl-2-pyrrolidone was added, and stirred at 23° C. for 15 hours under a nitrogen atmosphere to obtain Polyamic acid solution. The viscosity of the polyamic acid solution at a temperature of 25° C. was 104 mPa·s.

[0198] Take 15.0g of this polyamic acid solution in a 100mL conical flask equipped with a stirring bar, add 16.5g of N-methyl-2-pyrrolidone, 13.5g of butyl cellosolve, and stir for 2 hours with a magnetic stirrer to obtain a polyamic acid solution. Amic acid solution.

Embodiment 2

[0200] Take 4.09g (3.00mmol) of diamine (Z-12) and put it into a 100mL four-neck flask equipped with a stirrer, add 31.2g of N-methyl-2-pyrrolidone, and stir to dissolve it while feeding nitrogen gas. While stirring this solution, 5.77 g (2.94 mmol) of tetracarboxylic dianhydride (T-1) was added, and 7.79 g of N-methyl-2-pyrrolidone was added, and stirred at 23° C. for 15 hours under a nitrogen atmosphere to obtain Polyamic acid solution. The viscosity of the polyamic acid solution at a temperature of 25° C. was 653 mPa·s.

[0201] Take 15.0g of this polyamic acid solution in a 100mL conical flask equipped with a stirring bar, add 37.5g of N-methyl-2-pyrrolidone, 22.5g of butyl cellosolve, and stir for 2 hours with a magnetic stirrer to obtain a polyamic acid solution. Amic acid solution.

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Abstract

The present invention provides: a functional resin composition with which a high-durability drive control film can be obtained with which it is possible to maintain, with high precision, voltage applied during liquid crystal driving; and a planar antenna equipped with a drive control film obtained from the composition. The present invention pertains to a functional resin composition for a liquid crystal drive control film of a microwave phase-shifting modulation element in which a liquid crystal is used, the functional resin composition containing at least one polymer selected from polyamic acid derivatives and polyimides that are imidized compounds thereof.

Description

technical field [0001] The present invention relates to a functional resin composition used for a phase modulator using a liquid crystal, a drive control film obtained from the composition, and a phase modulation element including the drive control film. Background technique [0002] With the increasing use of high-frequency signals such as mobile phones and radar, devices that can control the amplitude and phase of high-frequency signals such as microwaves and millimeter waves arbitrarily through external stimuli have attracted attention. Liquid crystals are expected to be used as materials for high-frequency phasers because liquid crystals can easily control their dielectric constant by changing their orientation with an applied voltage (Japanese Patent Application Laid-Open No. 2005-120208 (Patent Document 1)). In particular, in recent years, studies on the use of phased array antennas equipped with high-frequency phasers using liquid crystals for satellite communications...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/18C08G73/10
CPCH01P1/18C08G73/10C08L79/08C08G73/1042
Inventor 铃木加名子名木达哉根木隆之后藤耕平筒井皇晶
Owner NISSAN CHEM IND LTD
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