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

Dimming device and light adjusting method thereof

A technology of device and adjustment area, which is applied in the direction of instruments, optics, static indicators, etc., can solve the problems of high cost and low service life, and achieve the effects of increasing service life, reducing production cost, and simple preparation process

Pending Publication Date: 2018-01-12
SHENZHEN GUOHUA OPTOELECTRONICS
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a polymer-free dimming device to solve the problems of high cost and low service life caused by the use of polymer networks in the prior art

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
  • Dimming device and light adjusting method thereof
  • Dimming device and light adjusting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , the present invention provides a dimming device, including a substrate one and a substrate two oppositely arranged, and the substrate one includes a transparent glass substrate one 10, an ITO conductive layer one 11 and a polyimide vertical alignment layer one 12 arranged in sequence , the substrate two includes a transparent glass substrate two 20, an ITO conductive layer two 21 and a polyimide vertical alignment layer two 22 arranged in sequence, the polyimide vertical alignment layer one 12 of the substrate one and the substrate two The second polyimide vertical alignment layer 22 is oppositely arranged, and an adjustment region 3 is formed between the first substrate and the second substrate. The height of the adjustment region 3 is 5 μm, and the adjustment region 3 is filled with a liquid crystal mixture. The liquid crystal mixture includes negative liquid crystal 4 and tetrabutylammonium perchlorate 5, and the mass fraction of the tetrabutylammonium...

Embodiment 2

[0030] This embodiment provides a dimming device, the structure of which is the same as that of Embodiment 1, except that: the height between the adjustment regions is 50 μm, and the liquid crystal mixture is negative liquid crystal and hexadecyl trimethyl For ammonium bromide, the mass fraction of cetyltrimethylammonium bromide in the liquid crystal mixture is 10%, and the dimming liquid crystal device is connected to a power supply assembly with a voltage of 7V and a frequency of 50Hz to be in a power-on state.

Embodiment 3

[0032] This embodiment provides a dimming device, the structure of which is the same as that of Embodiment 1, except that the height between the adjustment regions is 25 μm, and the liquid crystal mixture is positive liquid crystal and dodecyl trimethyl bromide ammonium chloride, the mass fraction of the dodecyltrimethylammonium bromide in the liquid crystal mixture is 5%, the alignment layer is a polyimide parallel alignment layer, and the access voltage of the dimming liquid crystal device is 25V The power supply components with a frequency of 1000Hz are in the energized state. In the non-energized state of the dimming device provided in this embodiment, the positive liquid crystal is aligned parallel to the substrate under the induction of the polyimide parallel alignment layer. The AC voltage controls the reorientation of the positive liquid crystal, from the alignment parallel to the transparent glass substrate to the alignment perpendicular to the transparent glass subst...

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
Heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a dimming device and a light adjusting method thereof. The space between opposite adjusting areas formed by substrates is filled with body liquid crystals and salt capable of ionizing ions. The body liquid crystals are arrayed in a specific oriented mode under the induction of an orientation layer in a powered-off state, reorientation of the body liquid crystals is generated in a powered-on state, ions ionized by the salt capable of ionizing ions rapidly move under the effect of a formed electric field to disorder the specific orientated arraying of the body liquid crystals, molecules of the body liquid crystals irregularly move when the ionized ions rapidly move, incident light of a visible light waveband is scattered, the transmission and scattering of visible light are adjusted, and the light is adjusted. A liquid crystal device does not contain polymer networks, no reactive monomers need to be used, the polymerization process is not needed, the polymer ageing phenomenon does not exist, production cost is reduced, and the service life of the dimming device is prolonged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a dimming liquid crystal device and a driving method thereof. Background technique [0002] In recent years, dimming smart windows have aroused the interest and attention of scientists because they can switch between transparent and opaque states arbitrarily. Under normal circumstances, the smart window is in a transparent natural state, which keeps the room bright and bright; when it is powered on, it can be adjusted to an opaque state, but still allows light to pass through, maintaining the brightness of the room. Therefore, smart windows can replace curtains, function as partitions and protect privacy, and have gradually entered the Chinese market. [0003] Most of the existing smart windows are based on polymer network systems. Due to the high cost of the polymer materials used, the price of smart windows has been relatively high, and its price is currently several thousand...

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
IPC IPC(8): G02F1/13
CPCG02F1/133723G02F2202/06G02F1/1337G09G3/36G09G2360/14G02F1/133773G02F1/133796
Inventor 周国富詹媛媛迪克·杨·波尔刘丹青阿尔伯特·斯凯宁
Owner SHENZHEN GUOHUA OPTOELECTRONICS
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