Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Liquid crystal display element and method for producing same

A technology of liquid crystal display elements and liquid crystal molecules, applied in liquid crystal materials, chemical instruments and methods, optics, etc., can solve problems such as insufficient effects, and achieve the effects of less screen burn-in, excellent high-speed response, and less drop marks

Inactive Publication Date: 2016-07-20
DIC CORP
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, like the PSA method, etc., there is a problem of display burn-in caused by the reactive monomer added to the liquid crystal composition, and the effect of suppressing drip marks is not sufficient, so it is necessary to develop and maintain as a The basic characteristics of liquid crystal display elements, and liquid crystal display elements that are not prone to burn-in and drop marks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Liquid crystal display element and method for producing same
  • Liquid crystal display element and method for producing same
  • Liquid crystal display element and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0297] A first substrate (common electrode substrate) having a transparent electrode layer and a color filter layer, and a second substrate (pixel electrode substrate) having a pixel electrode layer are prepared, wherein the transparent electrode layer includes a transparent common electrode, and the pixel electrode layer has transparent pixel electrodes driven by active elements.

[0298] In the pixel electrode substrate, as each pixel electrode, a pixel electrode obtained by etching ITO is used so that a slit having no electrode exists in the pixel electrode in order to divide the alignment of liquid crystal molecules.

[0299] Coating a vertical alignment film material comprising a polyimide precursor and a polymerizable compound having a reactive group on the common electrode substrate and the pixel electrode substrate by spin coating, and heating the coating film at 200°C, Thus, the polyimide precursor in the vertical alignment film material was cured, and a vertical alig...

Embodiment 2

[0340] As a material for forming a vertical alignment film, a polyimide solution (trade name: JALS2131-R6; manufactured by JSR Corporation) containing 3% of a polyimide precursor containing 2% of the formula (V-2) is used. A polymerizable compound having a reactive group and 1% of a solution of a polymerizable compound having a reactive group represented by the following formula (VI-2), except that, the same operation as in Example 1 was performed to obtain Common electrode substrate and pixel electrode substrate with vertical alignment film.

[0341] [chem 34]

[0342]

[0343] To 99.7% of the liquid crystal composition used in Example 1, 0.3% of a polymerizable compound represented by the general formula (V-2) was added to prepare a liquid crystal composition containing a polymerizable compound, which was sandwiched between the formed Between the common electrode substrate of the vertical alignment film and the pixel electrode substrate, the liquid crystal display elemen...

Embodiment 3

[0349] As a vertical alignment film forming material, a polyimide solution (trade name: JALS2131-R6; manufactured by JSR Corporation) containing 2% of the following formula (V-4a) containing 3% of a polyimide precursor was used. The polymerizable compound with the reactive group shown and the solution containing 1% of the polymerizable compound with the reactive group represented by the formula (VI-1), except that, it was operated in the same manner as in Example 1 to obtain A common electrode substrate and a pixel electrode substrate having a vertical alignment film are formed.

[0350] [chem 35]

[0351]

[0352] To 99.7% of the liquid crystal composition used in Example 1, 0.3% of a polymerizable compound represented by the general formula (V-2) was added to prepare a liquid crystal composition containing a polymerizable compound, which was sandwiched between the formed Between the common electrode substrate of the vertical alignment film and the pixel electrode substra...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
strengthaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

The present invention provides: a liquid crystal display element which is less susceptible to the occurrence of dropping marks during the production thereof without deteriorating the characteristics of the liquid crystal display element such as dielectric anisotropy, viscosity, upper limit temperature of the nematic phase and rotational viscosity (gamma 1) and image burn-in characteristics of the liquid crystal display element; and a method for producing the liquid crystal display element. In addition, the present invention enables the production of a liquid crystal display element which has excellent high-speed responsivity as a liquid crystal display element, and which is stable with respect to the orientation and the pretilt angle of liquid crystal molecules, while being suppressed in image burn-in and the occurrence of dropping marks during the production thereof. A liquid crystal display element produced according to the present invention can be effectively used as a display element such as a liquid crystal TV and a monitor.

Description

technical field [0001] The present invention relates to a liquid crystal display element useful as a constituent member of a liquid crystal TV or the like, and a method for manufacturing the same. Background technique [0002] From being used in clocks and calculators, liquid crystal display components have developed to be used in various measuring equipment, automotive panels, word processors, electronic notepads, printers, computers, televisions, clocks, advertising display boards, etc. As for the liquid crystal display method, as its representative method, TN (twisted nematic) type, STN (super twisted nematic) type, vertical alignment type (Vertical Alignment; VA) using TFT (thin film transistor), IPS ( plane conversion) type, etc. The liquid crystal composition used in these liquid crystal display elements needs to be stable against external factors such as moisture, air, heat, and light, and in addition, exhibit a liquid crystal phase in as wide a temperature range as ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337C09K19/12C09K19/30C09K19/42G02F1/13
CPCC09K19/2014C09K2019/0448C09K2019/122C09K2019/123C09K2019/3004C09K2019/3009C09K2019/301C09K2019/3027C09K2019/305C09K2019/303G02F1/133707G02F1/133711C09K2019/3016C09K2019/548G02F1/133723G02F1/133742G02F1/13415C09K19/3003C09K19/542C09K19/56G02F1/133514G02F1/133788G02F1/1341G02F2201/121G02F2201/123G02F2201/124
Inventor 小川真治岩下芳典栗山毅平田真一
Owner DIC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com