Liquid crystal display device and application thereof

A liquid crystal display and device technology, applied in the field of liquid crystal display, can solve problems such as limited use, high driving voltage, and application restrictions, and achieve the effect of repeated cycle use, simple driving mode, and reduced driving mode

Pending Publication Date: 2018-12-18
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the device switches the cholesteric liquid crystal into a planar state with a driving voltage as high as 100V, and the driving voltage is relatively high, and switching to the focal conic state requires a driving method of slowly reducing the voltage, and the driving method is relatively complicated. Therefore, the current cholesteric liquid crystal The application of phase liquid crystal display devices is limited, and it is difficult to expand
In addition, the manufacturing process of the cholesteric liquid crystal display device is relatively complicated and the cost is high, which further limits its use.

Method used

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  • Liquid crystal display device and application thereof
  • Liquid crystal display device and application thereof
  • Liquid crystal display device and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Add appropriate optically active substances to HPC850100-100 to adjust it to a cholesteric reflection wavelength of about 546nm, pre-dissolve 80mL of dichloromethane 1g PMMA prepolymer and doped with 1wt% polymethacrylic acid (PMAA) After mixing 400mL of the aqueous solution, add 20g of cholesteric liquid crystals, mix uniformly to form an emulsion, remove methylene chloride by solvent evaporation, and obtain an aqueous solution containing liquid crystal microcapsules with a diameter of about 10 μm (which contains about 50wt% liquid crystal microcapsules). Then the prepared liquid crystal microcapsule aqueous solution and 20wt% PVA aqueous solution are mixed evenly at a volume ratio of 1:1, and set aside.

[0046] Select a conductive PET-ITO with a thickness of 125 μm as the first substrate, place it on a film coating machine, and apply a layer of OCA optical adhesive with a thickness of 20 μm on the surface of the substrate using the screw printing technology (purchased...

Embodiment 2

[0049] The preparation method of the aqueous solution of liquid crystal microcapsules in this example is basically the same as in Example 1, except that the liquid crystal in Example 1 is replaced with HSG07900-000, and the cholesteric reflection wavelength is replaced with about 625nm. Then the prepared liquid crystal microcapsule aqueous solution and 20wt% bone glue aqueous solution are mixed evenly in a volume ratio of 4:6, and set aside.

[0050] Select conductive PET-ITO with a thickness of 75 μm as the first substrate, place it flat on the film coating machine, and apply a layer of OCA optical glue with a thickness of 20 μm on the surface of the substrate by screw printing technology. After drying for 3 minutes, polymerize and cure for 3 minutes under 8mW illumination and 365nm fluorescent lamp. Then, the liquid crystal microcapsule solution mixed with bone glue prepared above was coated with a thickness of 40 μm on the surface of the OCA optical glue by scraper printing...

Embodiment 3

[0053] Mix HMT138600-100I001 and 33wt% aqueous polyurethane solution at a volume ratio of 6:4, stir at a stirring rate of 1000rmp for 5 minutes, and defoam to obtain a suspoemulsion. Liquid crystal particles with a particle size of about 15 μm can be seen under a microscope. In water-based polyurethane, spare.

[0054] Select the conductive PET-ITO with a thickness of 188 μm as the first substrate, put it on the film coating machine and place it flat, and use the screw printing technology to coat a layer of the above-mentioned water-based polyurethane mixed with water-based polyurethane with a thickness of 30 μm on the surface of the substrate. Liquid crystal emulsion, dried at 80°C for 5 hours. Then, a layer of black conductive adhesive with a thickness of 20 μm is coated on the film by scraper printing technology, and dried at 50° C. for 0.5 hour to prepare the liquid crystal display device of the present invention.

[0055] The structure of the prepared liquid crystal disp...

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Abstract

The invention discloses a liquid crystal display device and application thereof. The liquid crystal display device comprises two or more flexible conducting layers and glue layers clamped between thetwo or more flexible conducting layers and containing cholesteric liquid crystal. At least one of the two or more flexible conducting layers is a transparent flexible conducting layer. When the two ormore flexible conducting layers are both the transparent flexible conducting layers, a light absorption layer is arranged on the side, close to the corresponding glue layer, of any one of the flexible conducting layers; and when only one of the flexible conducting layers is the transparent flexible conducting layer, the light absorption layers are arranged on the sides, close to the correspondingglue layers, of the nontransparent flexible conducting layers. The liquid crystal display device provided by the invention has the advantages of being low in driving voltage, capable of flexibly displaying and being repeatedly used and the like, and is suitable for the field of electronic paper.

Description

technical field [0001] The invention belongs to the field of liquid crystal display, and in particular relates to a liquid crystal display device and its application in the field of electronic paper. Background technique [0002] In the early 1970s, with the invention of Liquid Crystal Display (LCD), information display technology started a revolution. Because LCDs are lightweight, low-power flat-panel displays that provide visual readouts that meet the small size, light weight, and battery requirements of hand-held electronic devices, this display technology enables new classes of hand-held and other portable devices. Products appear in large numbers. Commercially, LCDs found widespread use first as digital readouts on watches, then in instruments, and later in hand-held computers, personal data assistants, and many other digital devices. Today, LCD technology has almost replaced cathode ray tubes in the fields of televisions and personal computers (PCs). [0003] Almost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/13G02F1/1334G02F1/1343G02F1/1335
CPCG02F1/1313G02F1/132G02F1/133305G02F1/1334G02F1/133512G02F1/134309G02F1/13718G02F2202/28G02F1/13775
Inventor 丁文全祝春才李鹏飞
Owner JIANGSU HECHENG DISPLAY TECHCO
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