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.

公开(公告)号：US10110312B2

公开(公告)日：2018-10-23

申请号：US15490479

申请日：2017-04-18

Applicant: South China Normal University

Inventor： Zhiyou Guo ,  Jie Sun ,  Jing Huang ,  Huiqing Shun ,  Hongyong Huang ,  Yong Huang ,  Xian Yang ,  Zhuding Zhang ,  Yang Liu ,  Min Guo ,  Shunyu Yao ,  Xinyan Yi ,  Xuancong Fang

IPC: H01L29/18 ,  H01L33/00 ,  H04B10/50 ,  H04B10/116 ,  H05B33/08 ,  H01L27/15 ,  H01L49/02 ,  H01L33/12 ,  H01L33/06 ,  H01L33/14 ,  H01L33/42

Abstract: A visible light communication emission device with improved response frequency is provided, comprising a substrate, wherein an inductance coil module is provided on the substrate, a LED chip matrix formed by series connection of a plurality of LED chips is provided on the inductance coil module, and the inductance coil module and the LED chip matrix are connected in series, wherein inductance value L of the inductance coil module is configured to be: L=1/(ω2C), with C representing capacity in the device provided by LED chips and ω representing frequency, wherein the inductance coil module comprises more than one inductance coil whose composition materials from inside to outside are successively Cr, Al, Cr, Ti, and Ag.

公开(公告)号：US20180286714A1

公开(公告)日：2018-10-04

申请号：US15531997

申请日：2015-12-21

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Miao HE ,  Yuanyuan ZHANG

IPC: H01L21/67 ,  H01L21/677 ,  H01L23/00 ,  G06F17/50

Abstract: Disclosed is a COB die bonding and wire bonding system and method. The system comprises a controller, a forward die bonder, a reverse die bonder and a conveyor belt, the controller being connected with the forward die bonder and the reverse die bonder respectively, and the forward die bonder is associated with the reverse die bonder by the conveyor belt. The system and method can realize the combination of the forward and reverse bonding when using the forward die bonder and the reverse die bonder to fix the chips, thus the amount of gold wire used for connecting chips on a substrate is minimized. The COB die bonding and wire bonding system and method can be widely used in the field of electronics.

公开(公告)号：US20170162129A1

公开(公告)日：2017-06-08

申请号：US15123970

申请日：2014-03-06

Applicant: South China Normal University ,  Shenzhen Guohua Optoelectronics Co. Ltd. ,  Shenzhen Guohua Optoeletronics Institute

Inventor： Guofu Zhou ,  Fahong Li ,  Robert Andrew Hayes

IPC: G09G3/34 ,  G02B26/00

CPC classification number: G09G3/348 ,  G02B26/005 ,  G09G3/2007

Abstract: An oil puncture controlled starting system for an EFD apparatus and manufacturing method therefor, wherein the EFD display structure comprises a base arranged below a lower electrode, and the base is provided with a step, such that a first liquid has a first thickness outside the step and a second thickness on the step, which is less than the first thickness, such a thickness difference renders the first liquid on the step to be punctured by a second liquid firstly when a lower voltage is applied between a upper electrode and the lower electrode, and the first liquid is pushed by the second liquid to move from a first area to a second area.

公开(公告)号：US20170098670A1

公开(公告)日：2017-04-06

申请号：US15311221

申请日：2014-12-23

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： KUNYUAN XU

IPC: H01L27/13 ,  H03L7/26 ,  H01L29/205 ,  H01L23/31 ,  H01L29/20

CPC classification number: H01L27/13 ,  B82Y20/00 ,  H01L23/3171 ,  H01L28/20 ,  H01L28/40 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/772 ,  H01L29/861 ,  H01Q21/06 ,  H01Q21/064 ,  H03L7/26

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：US09385269B2

公开(公告)日：2016-07-05

申请号：US14130624

申请日：2012-12-26

Applicant: South China Normal University

Inventor： Ting Mei ,  Naiyin Wang ,  Hao Li ,  Lei Wan

IPC: H01L33/06 ,  H01L33/14 ,  H01S5/343 ,  H01S5/042

CPC classification number: H01L33/06 ,  H01L33/14 ,  H01L33/145 ,  H01S5/0421 ,  H01S5/2009 ,  H01S5/3054 ,  H01S5/34333 ,  H01S5/34346 ,  H01S2301/17

Abstract: The present invention discloses an epitaxial structure for semiconductor light-emitting device, comprising an electron injection region, a hole injection region, a multi-quantum well active region, a potential barrier layer for blocking carriers, and one or more band edge shaping layers. The doping type and/or doping concentration of said band edge shaping layers are different from those of the adjacent layers. It may trim the band edge shape of the semiconductor energy band through the local built-in electric field formed as a result of adjusting the doping type, doping concentration and/or layer thickness thereof, such that the carriers in the multi-quantum well active region are distributed uniformly, the overall Auger recombination is decreased, and the effective potential barrier height of the potential barrier layer for blocking carriers is increased to reduce the drain current formed by carriers overflowing out of the multi-quantum well active region, thereby improving internal quantum efficiency. The present invention further discloses a semiconductor light-emitting device that employs said epitaxial structure, which similarly achieves the effects of reduced Auger recombination and/or decreased drain current through the trimming of the band edge shape of the energy band structure by the local built-in electric field, thereby improving internal quantum efficiency of the device.

Abstract translation: 本发明公开了一种半导体发光器件的外延结构，包括电子注入区，空穴注入区，多量子阱有源区，用于阻挡载流子的势垒层和一个或多个带边成形层。 所述带边缘成形层的掺杂类型和/或掺杂浓度与相邻层的掺杂类型和/或掺杂浓度不同。 其可以通过调整掺杂类型，掺杂浓度和/或层厚度而形成的局部内置电场来修整半导体能带的带边缘形状，使得多量子阱活性中的载流子 区域均匀分布，整个俄歇复合减小，阻挡载流子的势垒层的有效势垒高度增加，以减少由多量子阱有源区溢出的载流子形成的漏极电流，从而改善内部 量子效率。 本发明还公开了一种采用所述外延结构的半导体发光器件，其类似地实现了通过本地内建芯片修剪能带结构的带边缘形状来减小俄歇复合和/或降低漏极电流的效果， 在电场中，从而提高器件的内部量子效率。