公开(公告)号：US20200339717A1

公开(公告)日：2020-10-29

申请号：US16498727

申请日：2018-12-28

Applicant: South China Normal University ,  Shenzhen Guohua Optoelectronics Co., Ltd. ,  Academy of Shenzhen Guohua Optoelectronics

Inventor： Guofu ZHOU ,  Laurens DE HAAN ,  Zixuan DENG

IPC: C08F220/06 ,  C08F2/44 ,  C08F2/50 ,  C08F220/34 ,  C08F230/02 ,  C09D143/02 ,  C09D133/02 ,  C09D133/14 ,  C09K19/38

Abstract: A water-responsive interpenetrating polymer network, a preparation method and use thereof, are disclosed in the present disclosure. The water-responsive interpenetrating polymer network comprises an interpenetrating polymer network formed by a cholesteric liquid crystal polymer and a polyionic liquid; wherein the cholesteric liquid crystal polymer is formed by polymerization of a liquid crystal mixture; and the polyionic liquid contains a hydrophilic group or is a hydrophilic salt. The interpenetrating polymer network of the present disclosure is water responsive without needs of activation with an alkaline solution, which simplifies the preparation process, and it has stable water responsiveness performance after prolonged and/or repeated exposure to water. The water-responsive interpenetrating polymer network of the present disclosure can be used to prepare light reflective coatings and reflective devices, and has higher commercial value.

公开(公告)号：US20200073159A1

公开(公告)日：2020-03-05

申请号：US16493633

申请日：2017-11-15

Applicant: South China Normal University ,  Shenzhen Guohua Optoelectronics Co., Ltd. ,  Academy of Shenzhen Guohua Optoelectronics

Inventor： Guofu ZHOU ,  Xiaowen HU ,  Nan LI

IPC: G02F1/1337 ,  G02F1/1341 ,  G02F1/1334

Abstract: A method for preparing an infrared reflective device, including: preparing a first and second conductive light-transmitting substrates which are arranged opposite to each other; preparing a parallel alignment layer on a respective surface of each conductive light-transmitting substrate facing to the other; preparing a liquid crystal cell using the two conductive light-transmitting substrates; mixing a negative liquid crystal, a chiral dopant, a liquid crystal monomer and a photoinitiator to obtain a liquid crystal mixture; injecting the liquid crystal mixture into the liquid crystal cell; connecting the first conductive light-transmitting substrate to a negative pole of a power supply assembly, connecting the second conductive light-transmitting substrate to a positive pole of the power supply assembly; and carrying out ultraviolet irradiation to polymerize the liquid crystal monomer so as to form a polymer network with a gradient density distribution in a direction perpendicular to the conductive light-transmitting substrates.

公开(公告)号：US20200026113A1

公开(公告)日：2020-01-23

申请号：US16491086

申请日：2017-11-15

Applicant: South China Normal University ,  Shenzhen Guohua Optoelectronics Co., Ltd. ,  Academy of Shenzhen Guohua Optoelectronics

Inventor： Guofu ZHOU ,  Hao LI ,  Nan LI

IPC: G02F1/137 ,  G02F1/166 ,  G02F1/1333

Abstract: An electrically controlled smart window, which includes two light-transmitting substrates arranged oppositely, a power supply component and an in-between light-adjusting area. Hereinto the light-adjusting area is divided into a matrix of light-adjusting units by pixel wall(s), and every units are closely arranged in a grid shape. To the power supply component, an electrode is connected with the pixel wall, and another is localized on the center of light-adjusting unit and did with the light-transmitting substrate. Both surface-charged liquid crystal polymer particles and conductive filling liquid are filled into the medium between the two light-transmitting substrates. According to the present disclosure, cholesteric liquid crystal polymer microparticles with specific reflection band and surface charges are used as basic reflectors, thereby achieving the significant advantages of being easy to manufacture, low cost, and stable performance, without causing interference to electromagnetic signals.

公开(公告)号：US20190312723A1

公开(公告)日：2019-10-10

申请号：US16314858

申请日：2017-12-20

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Banghong Guo ,  Min Hu ,  Panpan Zhang

IPC: H04L9/08 ,  H04J14/02

Abstract: A system includes an Alice transmitting terminal, a wavelength division multiplexing (WDM) unit and a plurality of Bob terminals for receiving a plurality of photons of different wavelengths; the Alice terminal is connected with the plurality of Bob terminals by the WDM unit; the Alice terminal includes a multi-wavelength laser generation device, an attenuator, a first polarization beam splitter, a first beam combiner, a phase modulator, a first polarization controller and a second polarization controller; the WDM unit includes a wavelength selection device; each Bob terminal includes a second polarization controller, a third polarization controller, a fourth polarization controller, a third polarization beam splitter, a fourth polarization beam splitter, a second beam combiner, a third beam combiner, a first photon detector, a second photon detector, a third photon detector and a fourth photon detector.

公开(公告)号：US10310354B2

公开(公告)日：2019-06-04

申请号：US15752867

申请日：2016-01-07

Applicant: ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICS ,  SOUTH CHINA NORMAL UNIVERSITY ,  SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD.

Inventor： Guofu Zhou ,  Hao Wu ,  Fahong Li ,  Robert Andrew Hayes

IPC: G09F9/37 ,  G09G3/34 ,  G02B26/00 ,  G02F1/167

Abstract: Disclosed is an electrofluidic support plate and a method for preparing the same, and an electrofluidic device comprising the support plate. The method comprises the following steps of: providing a substrate which has a surface provided with an electrode layer; arranging a first amorphous fluoropolymer layer on the surface of the substrate, and carrying out hydrophilic modification on a surface of the amorphous fluoropolymer layer; arranging pixel walls on the amorphous fluoropolymer layer after hydrophilic modification; arranging a second amorphous fluoropolymer layer which is a hydrophobic layer; the second amorphous fluoropolymer layer covering all surfaces of the pixel walls and a groove area encircled by the pixel walls; filling the groove area encircled by the pixel walls with a protective material; removing the second amorphous fluoropolymer layer not covered by the protective material and on a top of the pixel walls; and removing the protective material.

公开(公告)号：US20180231863A1

公开(公告)日：2018-08-16

申请号：US15752867

申请日：2016-01-07

Applicant: ACADEMY OF SHENZHEN GUOHUA OPTOELECTRONICS ,  SOUTH CHINA NORMAL UNIVERSITY ,  SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD.

Inventor： Guofu ZHOU ,  Hao WU ,  Fahong LI ,  Robert Andrew HAYES

IPC: G02F1/167 ,  G02B26/00 ,  G09F9/37

CPC classification number: G02F1/167 ,  B01L2400/0427 ,  G02B26/005 ,  G09F9/372

Abstract: Disclosed is an electrofluidic support plate and a method for preparing the same, and an electrofluidic device comprising the support plate. The method comprises the following steps of: providing a substrate which has a surface provided with an electrode; arranging a first amorphous fluoropolymer layer on the surface of the substrate, and carrying out hydrophilic modification on a surface of the amorphous fluoropolymer layer; arranging pixel walls on the amorphous fluoropolymer layer after hydrophilic modification; arranging a second amorphous fluoropolymer layer which is a hydrophobic layer; the second amorphous fluoropolymer layer covering all surfaces of the pixel walls and a groove area encircled by the pixel walls; filling the groove area encircled by the pixel walls with a protective material; removing the second amorphous fluoropolymer layer not covered by the protective material and on a top of the pixel walls; and removing the protective material. With the method, problems that the ink does not return and reliability is poor due to damages of the surface of the hydrophobic layer can be solved. Moreover, the existing of gap between the hydrophobic material and the pixel walls is avoided, thus solving the problem of short-circuit of an upper support plate and a lower support plate due to the gap between the hydrophobic layer and the pixel walls. The disclosure can be applied to the electrofluidic device.

公开(公告)号：US20180103516A1

公开(公告)日：2018-04-12

申请号：US15490065

申请日：2017-04-18

Applicant: South China Normal University

Inventor： Huiqing SHUN ,  Xian YANG ,  Zhiyou GUO ,  Yong HUANG ,  Hongyong HUANG ,  Jie SUN ,  Jing HUANG ,  Zhuding ZHANG ,  Yang LIU

IPC: H05B33/08 ,  H04B10/116 ,  H04B10/50 ,  H01L27/15 ,  H01L49/02 ,  H01L33/42 ,  H01L33/32 ,  H01L33/06 ,  H01L33/12 ,  H01L33/00

CPC classification number: H05B33/0821 ,  H01L27/15 ,  H01L28/10 ,  H01L33/007 ,  H01L33/0095 ,  H01L33/06 ,  H01L33/08 ,  H01L33/12 ,  H01L33/20 ,  H01L33/32 ,  H01L33/38 ,  H01L33/42 ,  H01L33/44 ,  H01L33/62 ,  H01L2933/0016 ,  H04B10/116 ,  H04B10/502

Abstract: A visible light communication LED having a spiral inductance coil and a circular core is provided, comprising a sapphire substrate provided with a positive electrode welding spot and a negative electrode welding spot, and a plurality of LED cores deposited on the sapphire substrate. The negative electrode of a former core is connected with the positive electrode of a latter core, and the positive electrode of the first core and the negative electrode of the last core are respectively connected to the positive electrode welding spot and the negative electrode welding spot on the substrate. According to the present invention, each of the LED cores is surrounded by a spiral inductance coil, and a pin of one end of the spiral inductance coil is connected via a connecting wire with the negative electrode of an adjacent LED core, while the other end is directly connected with the positive electrode of the LED core that is surrounded by the spiral inductance coil.

公开(公告)号：US20170045650A1

公开(公告)日：2017-02-16

申请号：US15305642

申请日：2014-04-22

Applicant: SHENZHEN GUOHUA OPTOELECTRONICS CO., LTD. ,  South China Normal University ,  Shenzhen Guohua Optoelectronics Institute

Inventor： Guofu Zhou ,  Robert Andrew Hayes ,  Jan Groenewold

IPC: G02B5/02 ,  G02B1/04 ,  G02B5/08 ,  G02B26/00

CPC classification number: G02B5/0284 ,  G02B1/04 ,  G02B5/02 ,  G02B5/0816 ,  G02B26/00 ,  G02B26/005

Abstract: A display structure having a high-brightness diffuse reflector, an electrowetting display structure based on the display structure, an in-cell type electrowetting display structure and a manufacturing method thereof are disclosed. The display structure comprises panel glass (1), a display layer (2) and substrate glass (3), wherein a high-brightness diffuse reflection polymer thin film material (4) is arranged under the substrate glass (3); the panel glass (1), the display layer (2), the substrate glass (3) and the diffuse reflection polymer thin film material (4) are stacked in sequence. According to the display structure and manufacturing method thereof of the invention, the required diffuse reflection and contrast ratio approximate to paper can be provided by placing a high-brightness diffuse reflection polymer thin film under a substrate or a display layer of a plate display structure as a diffuse reflection layer or a diffuse reflector.

Abstract translation: 公开了一种具有高亮度漫反射器，基于显示结构的电润湿显示结构，电池内电润湿显示结构及其制造方法的显示结构。 显示结构包括面板玻璃（1），显示层（2）和基板玻璃（3），其中在基板玻璃（3）下面布置有高亮度漫反射聚合物薄膜材料（4）; 面板玻璃（1），显示层（2），基板玻璃（3）和漫反射聚合物薄膜材料（4）依次层叠。 根据本发明的显示结构及其制造方法，可以通过将高亮度漫反射聚合物薄膜放置在基板或板显示结构的显示层上来提供所需的与纸张相近的漫反射和对比度，如 漫反射层或漫反射器。

公开(公告)号：US12087868B2

公开(公告)日：2024-09-10

申请号：US17629343

申请日：2019-09-11

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Richard Notzel

IPC: H01L29/885 ,  H01L21/02 ,  H01L29/20 ,  H01L29/66 ,  H02M7/06

CPC classification number: H01L29/885 ,  H01L21/02381 ,  H01L21/02433 ,  H01L21/02488 ,  H01L21/0254 ,  H01L21/02631 ,  H01L29/2003 ,  H01L29/66204 ,  H02M7/06

Abstract: An epitaxial wafer, a method of manufacturing the epitaxial wafer, a diode, and a current rectifier are provided. The epitaxial wafer comprises a Si substrate layer; an insulating layer formed on the Si substrate layer; and a nitride semiconductor layer formed on a surface of the insulating layer facing away from the Si substrate layer; wherein the insulating layer has a thickness configured such that under a forward bias voltage, the insulating layer may allow electrons and holes to pass from one side to the other side of the insulating layer via quantum tunneling so as to allow a forward current flow.

公开(公告)号：US20230013770A1

公开(公告)日：2023-01-19

申请号：US17629794

申请日：2019-03-27

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Fuming CHEN

IPC: C02F1/461 ,  C02F1/26 ,  C02F1/42

Abstract: An ion removal device based on electrochemical and photoelectrochemical methods, and the application of energy conversion and storage are provided. In the ion removal process based on the electrochemical and photoelectrochemical fluidization battery device, the positive active material in the flow battery is the positive pole of device, the negative active material in the fluid battery is the negative pole of the device, and the salt solution is the electrolyte in the middle stream. The positive and negative active materials include organic materials such as 4-hydroxy-piperidinol oxide, riboflavin sodium phosphate or methyl viologen, which have the advantages of low raw material cost, environmental friendliness, high sustainability, excellent electrochemical performance, high specific capacity and good cycle stability etc. The electrolyte can be separated from the positive and negative active liquid flow materials according to the fixed sequence of self-assembly of fluid battery mold.