公开(公告)号：US10410592B2

公开(公告)日：2019-09-10

申请号：US15764228

申请日：2016-04-13

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

Inventor： Zichuan Yi ,  Li Wang ,  Guofu Zhou

IPC: G09G3/34

Abstract: A driving method for reducing ghosting in an electrophoretic display is provided without prolonging driving waveform time and scintillation by improving a driving waveform design. The method comprises four steps: erasing an original image (S1); activating activity of electrophoretic particle (S2); activating electrophoretic particle (S3); and writing a new image (S4). At the electrophoretic particle activating (S3) stage, the electrophoretic particle activating is carried out for a preset duration time (tx), wherein the voltage of the driving waveform is 0V within the preset duration time (tx).

公开(公告)号：US10263020B2

公开(公告)日：2019-04-16

申请号：US15311221

申请日：2014-12-23

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Kunyuan Xu

IPC: H01L27/13 ,  H01Q21/06 ,  H01L29/772 ,  H01L29/861 ,  H01L23/31 ,  H01L29/20 ,  H01L29/205 ,  H03L7/26 ,  H01L49/02 ,  B82Y20/00

Abstract: Provided is a planar nano-oscillator array having phase locking function, including two or more planar nano-oscillators which are arranged in parallel. The two oscillators are connected by planar resistors and capacitors, and a structure thereof includes: electrodes; respectively introducing two pairs of laterally arranged parallel insulation notch grooves into two-dimensional electron gas layers, so as to form oscillation channels; vertically disposing separating insulation notch grooves, so that a planar resistor A with low resistance which is connected to the electrode is formed on the left side, and a planar resistor B with low resistance which is connected to the electrode is formed on the right side; and arranging, between the two oscillators, an insulation capacitor notch groove which is parallel to the oscillation channels, insulating materials having a high dielectric constant being filled therein.

公开(公告)号：US12255231B2

公开(公告)日：2025-03-18

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 ,  B82Y40/00 ,  H01L21/02 ,  H01L29/20

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：US12251458B1

公开(公告)日：2025-03-18

申请号：US18923620

申请日：2024-10-22

Applicant: South China Normal University

Inventor： Haocai Chang ,  Wenwen Ouyang ,  Yongci Tan ,  Jing Tong

IPC: A61K8/46 ,  A61Q19/08

Abstract: The present disclosure relates to the technical field of anti-aging preparations for skin, and especially relates to an anti-aging preparation for skin and an application thereof. Components of the anti-aging preparation for skin includes a 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoic acid and/or a salt thereof. In the present disclosure, the anti-aging effect of the 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoic acid and the salt thereof (such as sodium 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoate) on skin has been discovered, and the 4-[(1E)-2-[[(4-chlorophenyl)methyl]sulfonyl]alkyne]-benzoic acid and the salt thereof can be applied in preparing the anti-aging preparation for skin that has good anti-aging effect on skin.

公开(公告)号：US20230368896A1

公开(公告)日：2023-11-16

申请号：US18183931

申请日：2023-03-14

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Qi YE ,  Lihui WEN ,  Jiawei CHEN ,  Chihua FANG

IPC: G16H30/40 ,  G06T7/10 ,  G06T3/40

CPC classification number: G16H30/40 ,  G06T7/10 ,  G06T3/4007 ,  G06T2207/20084

Abstract: The present invention provides a medical image segmentation method based on a Boosting-Unet segmentation network. By dividing training of an overall segmentation network into training of m sub segmentation networks, the method inherits convolution kernel parameters of the (k−1)th sub segmentation network during training of the kth sub segmentation network, thereby greatly decreasing the quantity of the convolution kernel parameters during every training and improving the learning ability of the network and the resistance to noise and image blur. In addition, a plurality of sub segmentation networks are arranged, so that the efficiency of the network is improved, a depth of an image data feature is also extracted, and the image data is segmented precisely, thereby improving the learning ability of the overall segmentation network to the image data feature, enhancing the robustness to noise disturbance information and further improving the performance of image segmentation.

公开(公告)号：US11473013B1

公开(公告)日：2022-10-18

申请号：US17732539

申请日：2022-04-29

Applicant: South China Normal University

Inventor： Tao Chen ,  Bo Yan ,  Jian Huang

IPC: C09K17/46 ,  B01J20/22 ,  B01J20/10 ,  B01J20/06 ,  B09C1/08 ,  B01J20/32 ,  B01J20/28

Abstract: A magnetic soil remediation agent for soil heavy metal pollution and a preparation method and application thereof are provided. The magnetic soil remediation agent is prepared by using remediation agent framework material and magnetic core material as raw materials, and heavy metal collector as modifier; said framework material is silicon dioxide activated by strong alkali; said magnetic core material comprises magnetic materials Fe3O4 and γ-Fe2O3; said modifier comprises ethylenediaminetetraacetic acid (EDTA), nitrilotriacetic acid trisodium salt (NTA), (S,S)-ethylenediamine-N,N-disuccinic acid trisodium salt (EDDS) and mercaptoethylamine. The remediation agent of the present invention can effectively passivate the heavy metals in the soil, reduce their available contents, and inhibit the absorption of heavy metals by plants.

公开(公告)号：US11368608B2

公开(公告)日：2022-06-21

申请号：US16618376

申请日：2018-01-18

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Jun Li ,  Miao Lei ,  Xiaofang Dai ,  Shangyuan Wang ,  Ting Zhong ,  Chuangxue Liang ,  Chen Wang ,  Ping Xie ,  Ruiqiang Wang

IPC: H04N5/225 ,  G02B5/30 ,  G06F17/16

Abstract: A compressed sensing based object imaging system and an imaging method thereof. The object imaging system comprises a light source generation unit (11), a filter unit (12), an image generation unit (13), an image acquisition unit (14), and an image reconstruction unit (15). The light source generation unit (11) generates experimental laser; the filter unit (12) filters high frequency scattered light and forms parallel light; the image generation unit (13) generates an experimental image in which an object image (16) and a specific measurement matrix (17) are superimposed; the image acquisition unit (14) performs compression sampling on the generated experimental image; and the image reconstruction unit (15) reconstructs sampling data to restore the object image (16). The imaging method comprises: establishing a sample database comprising the specific target object image (16); training sample images to obtain the specific measurement matrix (17); and simultaneously completing image sampling, image compression and image recognition in an all-optical system. The system and the method can greatly reduce the data volume recorded in image recognition and image matching, thus improving the real-time performance of the system, and providing a possibility of concurrent processing by machine vision and artificial intelligence.

公开(公告)号：US20210272802A1

公开(公告)日：2021-09-02

申请号：US17254102

申请日：2018-12-19

Applicant: South China Normal University

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

IPC: 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：US11079631B2

公开(公告)日：2021-08-03

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 ,  C09D5/33 ,  C09K19/04

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：US10942402B2

公开(公告)日：2021-03-09

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: G02F1/1334 ,  G02F1/1347 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/1339

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.