公开(公告)号：US20220222565A1

公开(公告)日：2022-07-14

申请号：US17611127

申请日：2021-03-16

Applicant: South China Normal University

Inventor： Jianhao Yuan ,  Dejian Pan ,  Qinzhou Ye ,  Zhentao Liang ,  Hui Yan

IPC: G06N10/40 ,  G06N10/20

Abstract: Disclosed are an entangled state preparation method and device based on a superconducting quantum bit and a Rydberg atom. With the help of two strong microwave driving fields, an unconventional geometric quantum gate is achieved, as to complete the preparation of a maximum entangled state. The influence of a laser field and a magnetic field required by the Rydberg atom and a radiation-cooled superconducting coaxial cable on the coherence of the superconducting quantum bit may be reduced.

公开(公告)号：US11181733B2

公开(公告)日：2021-11-23

申请号：US16484882

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 Wu ,  Yingying Dou ,  Fahong Li

IPC: G02B26/00

Abstract: A method for preparing an electrowetting display support plate (5), comprising the following steps: preparing a substrate (7) having an electrode layer; preparing a hydrophobic insulating layer (13) and pixel walls (20) on the substrate (7) having an electrode layer, the pixel walls (20) being made of a hydrophilic material; performing plasma etching on the substrate (7) having the pixel walls (20), the power of the plasma etching being 30-1,000 W/m2; and heating the substrate (7) subjected to the plasma etching, so as to recover the hydrophobicity of the hydrophobic insulating layer (13). According to the method, the technical bias that the display support plate (5) being treated by means of the plasma etching would influence the quality of the hydrophobic insulating layer (13) is eliminated.

公开(公告)号：US20210336003A1

公开(公告)日：2021-10-28

申请号：US17254107

申请日：2019-01-11

Applicant: South China Normal University

Inventor： Richard Notzel ,  Peng Wang ,  Stefano Sanguinetti ,  Guofu Zhou

IPC: H01L29/06 ,  H01L29/20 ,  H01L21/02

Abstract: Provided is a nanowire array, in which a plurality of nanowires are densely packed and in contact with each other via side walls to form a three-dimensional, compact layer structure, wherein the plurality of nanowires are formed from InGaN-based material. Also provided is an optoelectronic device comprising the nanowire array which is epitaxially grown on a surface of a substrate (12). Further provided are methods for preparing the nanowire array and the optoelectronic device.

公开(公告)号：US11070370B2

公开(公告)日：2021-07-20

申请号：US16314858

申请日：2017-12-20

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Banghong Guo ,  Min Hu ,  Panpan Zhang

IPC: H04B10/00 ,  H04L9/08 ,  H04J14/02 ,  H04J14/00

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：US11067866B2

公开(公告)日：2021-07-20

申请号：US16498755

申请日：2018-10-10

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

Inventor： Guofu Zhou ,  Xiaowen Hu ,  Wei Zhao ,  Haitao Sun

IPC: G02F1/137 ,  G02F1/139

Abstract: A multi-stable electroresponsive smart window and preparation method thereof are disclosed. The multi-stable electroresponsive smart window comprises a first light transmitting conductive substrate, a parallel orientation layer, a positive polymer stabilized cholesteric texture layer, a positive cholesteric texture layer and a second light transmitting conductive substrate disposed in stack successively. The multi-stable electroresponsive smart window of the present disclosure can realize a diversified light transmission state such as colored and transparent state, colored and blur state, colorless and blur state, and colorless and transparent state by changing the magnitude of the access voltage, thereby satisfying the various demands in people's work and life. In addition, the multi-stable electroresponsive smart window of the present disclosure has the characteristics of simple production, rich patterns, energy saving and environmental protection, which has good application prospects in the fields of window glass, home glass window and glass curtain wall, and the like.

公开(公告)号：US20200369789A1

公开(公告)日：2020-11-26

申请号：US16770983

申请日：2018-12-12

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Ruqiang HUANG ,  Jingwen ZHANG ,  Jinghui WANG ,  Qian WANG ,  Linlin GAO

IPC: C08B37/00 ,  A61K31/715 ,  A61P19/06

Abstract: A Cordyceps militaris medium polysaccharide, a method for separating and purifying same, and the use thereof, wherein the polysaccharide comprises the following monosaccharides in mole percentages: 0.11% ribose, 0.11% rhamnose, 0.45% arabinose, 0.13% xylose, 14.50% mannose, 83.96% glucose, and 0.73% galactose. The extraction method does not affect the biological activity of the Cordyceps militaris medium polysaccharide P1; the obtained purified polysaccharide P1 has high purity and stable properties, and has significant effects on resistance to oxidation, lowering uric acid and bacteriostasis, which are beneficial to human metabolism; due to the low cost, the purified polysaccharide P1 can be further used in the development of health products, drugs and cosmetics.

公开(公告)号：US20200333647A1

公开(公告)日：2020-10-22

申请号：US16498740

申请日：2018-10-10

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

Inventor： Guofu ZHOU ,  Xiaowen HU ,  Wei ZHAO ,  Haitao SUN ,  Wenmin YANG ,  Lingling SHUI

IPC: G02F1/1347 ,  G02F1/1334 ,  G02F1/137

Abstract: The present disclosure discloses an electroresponsive liquid crystal dimming device comprising a first light transmitting conductive substrate, a first polymer network stabilized liquid crystal layer, a positive liquid crystal layer, a second polymer network stabilized liquid crystal layer and a second light transmitting conductive substrate which are arranged in sequence; and the first polymer network stabilized liquid crystal layer and the second polymer network stabilized liquid crystal layer reflect the circularly polarized light having the same polarization direction. The conversion of the positive liquid crystals in each layer between different states is driven by changing the magnitude of the access voltage of the liquid crystal dimming device according to the present disclosure, thereby realizing the adjustment of blurring to transparent states and color to colorless states of the liquid crystal dimming device, having a good application prospect in the window glass, and home glass window, and the like.

公开(公告)号：US20200257170A1

公开(公告)日：2020-08-13

申请号：US16495787

申请日：2018-05-04

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

Inventor： Guofu ZHOU ,  Laurens DE HAAN ,  Pei ZHANG ,  Wei ZHAO

IPC: G02F1/1337 ,  C09K19/20 ,  C09K19/38

Abstract: A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating. The preparation of the main chain cholesteric phase liquid crystal polymer of the present disclosure requires only a simple thermally-driven polymerization reaction.

公开(公告)号：US20190391437A1

公开(公告)日：2019-12-26

申请号：US16483804

申请日：2017-11-08

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

Inventor： Guofu ZHOU ,  Xiaowen HU ,  Nan LI

IPC: G02F1/1347 ,  G02F1/137 ,  G02F1/1334 ,  G02F1/1337

Abstract: An electric response infrared reflection device and a preparation method thereof. The device comprises three light-transmitting conductive substrates which are oppositely arranged. Two adjacent light-transmitting conductive substrates of the three light-transmitting conductive substrates are respectively packaged to form a first adjusting area and a second adjusting area. Both the first adjusting area and the second adjusting area are filled with liquid crystal layers. Each of the liquid crystal layers comprises a mixed liquid crystal material. The mixed liquid crystal material comprises a chiral nematic phase liquid crystal, a monomer, a photoinitiator, and a chiral dopant. The spiral direction of the chiral nematic phase liquid crystal in the first adjusting area is opposite to the spiral direction of the chiral nematic phase liquid crystal in the second adjusting area, so that the total reflection of an infrared band can be implemented.

公开(公告)号：US10466471B2

公开(公告)日：2019-11-05

申请号：US15754158

申请日：2016-01-07

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

Inventor： Guofu Zhou ,  Fangchao Tian ,  Zhijie Luo ,  Weinan Zhang

IPC: G02B26/00

Abstract: Three-layer full-color dynamic electronic paper, comprising a substrate, a controller, a first EWOD display layer, a second EWOD display layer and a third EWOD display layer, wherein each of the first, second and third EWOD display layer is comprised of an upper transparent electrode plate, a hydrophobic insulating layer, pixel walls, colored ink, colorless liquid, a lower transparent electrode plate, an encapsulation adhesive, and a driving chip connected to the upper transparent electrode plate and the lower transparent electrode plate respectively; the lower transparent electrode plate of the third EWOD display layer is located above the substrate; the colored ink filled in the first, second and third EWOD display layer is cyan ink, magenta ink and yellow ink, respectively; and, the controller controls voltage waveforms of the three driving chips according to a subtractive color mixture principle of three primary colors for printing, so as to realize full-color displaying.