Liquid crystal spacer, spacer diffusion liquid, liquid crystal display device manufacturing method, and liquid crystal display divice

A technology of a liquid crystal display device and a manufacturing method, which are applied in the directions of nonlinear optics, instruments, optics, etc., can solve the problems of satisfactory fixation of spacers and the like

Inactive Publication Date: 2008-05-14
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] However, since the conventional core-shell spacer is a material in which an adhesive layer is formed with a uniform thickness on the surface of the core particle serving as the base material, when the spacer is fixed to the substrate, there is a gap between the core particle and the substrate. There is only a very small amount of adhesive layer between and fix the core particles on the substrate, so the fixation of the spacer on the substrate is not necessarily satisfactory

Method used

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  • Liquid crystal spacer, spacer diffusion liquid, liquid crystal display device manufacturing method, and liquid crystal display divice
  • Liquid crystal spacer, spacer diffusion liquid, liquid crystal display device manufacturing method, and liquid crystal display divice
  • Liquid crystal spacer, spacer diffusion liquid, liquid crystal display device manufacturing method, and liquid crystal display divice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0416] As the substrate particles, particles having a particle diameter of 4.1 μm (CV 5%) mainly composed of divinylbenzene (trade name “Micropearl SP-2401”, manufactured by Sekisui Chemical Industry Co., Ltd.) were used.

[0417] In a separable flask, weigh 80 parts by weight of ion-exchanged water, 320 parts by weight of ethanol, 0.5 parts by weight of polyvinylpyrrolidone (K-30), 5 parts by weight of styrene, and 10 parts by weight of substrate particles, and mix them uniformly , to obtain a substrate particle dispersion.

[0418] Then, a solution uniformly mixed with 10 parts by weight of ion-exchanged water, 40 parts by weight of ethanol, and 0.8 parts by weight of 2,2'-azobisisobutyronitrile was put into the substrate particle dispersion, and polymerized at 60°C for 20 hours. , washed to obtain the shell seed particle (1) having the shell seed layer on the surface of the substrate particle.

[0419] As a result of measuring the particle size of the obtained seed shell p...

Embodiment 2

[0426] In addition to using the shell seed particles (1) obtained in Example 1, when preparing the polymerizable monomer emulsion, 160 parts by weight of ion-exchanged water, 0.2 parts by weight of ethylene glycol dimethacrylate, and methyl Polymerization of 0.8 parts by weight of 2-ethylhexyl acrylate, 0.2 parts by weight of hydroxyethyl methacrylate, 0.05 parts by weight of benzoyl peroxide, and 1.2 parts by weight of sodium dodecylsulfonate with a homogenizer A liquid crystal spacer (2) having an adhesive layer was obtained in the same manner as in Example 1 except for the monomer emulsion.

[0427] The cross section of the obtained liquid crystal spacer (2) was observed with a transmission electron microscope (TEM). As a result, as shown in FIG. 4, (a) was 4.2 μm, (b) was 6.1 μm, (b) / ( a) is 1.5, (c) is 7.2 μm, and a structure in which an adhesive layer is provided on a part of the surface of the substrate particle. Thereafter, a spacer dispersion liquid (2) was prepared ...

Embodiment 3

[0429] In addition to using the seed shell particles (1) obtained in Example 1, when preparing the polymerizable monomer emulsion, 160 parts by weight of ion-exchanged water, 0.6 parts by weight of ethylene glycol dimethacrylate, and methyl Polymerization of 2.4 parts by weight of 2-ethylhexyl acrylate, 0.6 parts by weight of hydroxyethyl methacrylate, 0.15 parts by weight of benzoyl peroxide, and 1.2 parts by weight of sodium dodecylsulfonate with a homogenizer A liquid crystal spacer (3) having an adhesive layer was obtained in the same manner as in Example 1 except for the monomer emulsion.

[0430] The cross-section of the obtained liquid crystal spacer (3) was observed with a transmission electron microscope (TEM). The results are shown in FIG. 5, (a) is 4.2 μm, (b) is 4.5 μm, (b) / (a ) is 1.1, (c) is 5.1 μm, and it is a structure in which an adhesive layer is provided on a part of the surface of the substrate particle. Thereafter, a spacer dispersion liquid (3) was prepa...

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Abstract

The invention provides a liquid crystal spacer capable of accurately controlling the interval between two substrates when manufacturing a liquid crystal display device and being strongly fixed to the surface of the substrates; a spacer distribution liquid capable of accurately controlling the interval between the two substrates when manufacturing the liquid crystal device and capable of strongly fixing spacer particles onto the surface of the substrates; a method for manufacturing the spacer distribution liquid and a liquid crystal display device capable of accurately arranging the spacer particles on a particular position of the substrates; and a liquid crystal display device. The liquid crystal spacer includes a base material particle and an adhesive layer arranged on the surface of the base material particle. The adhesive layer has an apparent center not coinciding with the apparent center of the base material particle.

Description

technical field [0001] The present invention relates to a liquid crystal spacer that can accurately control the distance between two substrates and can be firmly fixed on the surface of the substrate when manufacturing a liquid crystal display device; can accurately control the distance between two substrates when manufacturing a liquid crystal display device, And the spacer dispersion that can firmly fix the spacer particles on the surface of the substrate; and the spacer dispersion that can accurately arrange the spacer particles at a specific position on the substrate by using an inkjet device; manufacture of liquid crystal display devices method; and a liquid crystal display device. Background technique [0002] Liquid crystal display devices are now widely used in personal computers, portable electronic devices, and the like. FIG. 20 is a cross-sectional view showing an example of a liquid crystal display device. As shown in FIG. 20 , in general, in a liquid crystal d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339
Inventor 上田伦久胁屋武司安藤努吉谷博司
Owner SEKISUI CHEM CO LTD
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