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    EPITAXIAL WAFER, METHOD OF MANUFACTURING EPITAXIAL WAFER, DIODE, AND CURRENT RECTIFIER
    2.
    发明申请
    EPITAXIAL WAFER, METHOD OF MANUFACTURING EPITAXIAL WAFER, DIODE, AND CURRENT RECTIFIER 审中-公开

    公开(公告)号：WO2021042407A1

    公开(公告)日：2021-03-11

    申请号：PCT/CN2019/105398

    申请日：2019-09-11

    Applicant: SOUTH CHINA NORMAL UNIVERSITY

    Inventor： NOTZEL, Richard ,  ZHOU, Guofu

    IPC: H01L29/06 ,  H01L29/88 ,  H01L21/329 ,  H01L21/02 ,  B82Y40/00

    Abstract: An epitaxial wafer, a method of manufacturing the epitaxial wafer, a diode, and a current rectifier. The epitaxial wafer comprises a Si substrate layer (11); an insulating layer (12) formed on the Si substrate layer (11); and a nitride semiconductor layer (13) formed on a surface of the insulating layer (12) facing away from the Si substrate layer (11); wherein the insulating layer (12) has a thickness configured such that under a forward bias voltage, the insulating layer (12) may allow electrons and holes to pass from one side to the other side of the insulating layer (12) via quantum tunneling so as to allow a forward current flow. Under reverse bias, the insulating layer (12) can hinder formation of free electrons and holes so as to block a reverse current. Thus, the epitaxial wafer is enabled to have the characteristic of allowing passage of a current only in one direction and can be made into a diode or the like for a current rectifying component.

    PERMEABLE OPTICAL FIBER FOR GAS SENSING
    3.
    发明申请
    PERMEABLE OPTICAL FIBER FOR GAS SENSING 审中-公开
    透气性光纤用于气体传感

    公开(公告)号：WO2018064822A1

    公开(公告)日：2018-04-12

    申请号：PCT/CN2016/101522

    申请日：2016-10-09

    Applicant: SOUTH CHINA NORMAL UNIVERSITY

    Inventor： ZHOU, Bin ,  SVANBERG, Sune ,  HE, Sailing

    IPC: G01N21/31

    CPC classification number: G01N21/39 ,  G01M3/047 ,  G01N2021/394 ,  G01N2201/0886

    Abstract: A permeable optical fiber (100, 202, 304, 403, 701) for distributed gas sensing is described. The fiber (100, 202, 304, 403, 701) has got core (101, 502, 602) and cladding (102, 501, 601) structure. It can be arranged in a plurality of ways, but could have a permeable polymer cladding (102, 501, 601) to let the gas go inside the fiber (100, 202, 304, 403, 701) and a silica core (101, 502, 602) to guide light. The polymer cladding (102, 501, 601) is also designed to protect the fiber (100, 202, 304, 403, 701) from physical damage. In the optical fibers (100, 202, 304, 403, 701) some small part of light is distributed in the region of cladding (102, 501, 601), and the permeable cladding (102, 501, 601) makes the interaction between surrounding gas the guided light possible, and then the sensing of the gas surrounding the fiber (100, 202, 304, 403, 701) is realized by the laser absorption spectroscopy. The proposed sensing fiber (100, 202, 304, 403, 701) is preferentially used for long distance gas sensing system using a variety of arrangements, including the use of sections of the gas permeable fiber (100, 202, 304, 403, 701) as sensors located at various sites, and optically accessed through normal fiber transmission or by using the differential absorption lidar technique, there spatial concentrations along the same long fiber are measured by time-of-flight or phase shift techniques. Numerous gases can be monitored in connection with industrial, agricultural, mining operations, etc.

    Abstract translation: 描述了用于分布式气体感测的可渗透光纤（100,202,304,403,701）。 光纤（100,202,304,403,701）具有芯部（101,502,602）和包层（102,501,601）结构。 它可以以多种方式布置，但可以具有可渗透的聚合物包层（102,501,601）以使气体进入纤维（100,202,304,403,701）内部并且二氧化硅核心（101,102） 502，602）来引导光。 聚合物包层（102,501,601）也被设计成保护光纤（100,202,304,403,701）免受物理损坏。 在光纤（100,202,304,403,701）中，光的一小部分分布在包层（102,501,601）的区域中，并且可渗透包层（102,501,601）使得 围绕气体引导可能的光，然后通过激光吸收光谱实现对光纤（100,202,304,403,701）周围的气体的感测。 所提出的传感光纤（100,202,304,403,701）优选地用于使用各种布置的长距离气体传感系统，包括使用透气纤维（100,202,304,403,701）的部分 ）作为位于不同地点的传感器，并且通过正常光纤传输或通过使用差分吸收激光雷达技术来光学访问，沿相同长光纤的空间浓度通过飞行时间或相移技术来测量。 在工业，农业，采矿作业等方面，可监测多种气体。

    DISTRIBUTED OPTICAL FIBER GAS SENSOR
    4.
    发明申请
    DISTRIBUTED OPTICAL FIBER GAS SENSOR 审中-公开
    分布式光纤气体传感器

    公开(公告)号：WO2018064821A1

    公开(公告)日：2018-04-12

    申请号：PCT/CN2016/101521

    申请日：2016-10-09

    Applicant: SOUTH CHINA NORMAL UNIVERSITY

    Inventor： SVANBERG, Sune ,  ZHAO, Guangyu ,  ZHOU, Bin

    IPC: G01N21/31

    CPC classification number: G01N21/39 ,  G01N21/552 ,  G01N2021/394 ,  G01N2201/0886

    Abstract: A distributed optical fiber gas sensing system (100) based on evanescent field sensing, spatially resolved along the fiber (105, 200, 300) and obtained by employing differential absorption lidar techniques is described. The fiber (105, 200, 300) can be arranged in a plurality of ways, and could have a porous cladding (202) sensing fiber (105, 200, 300) as the sensing unit. The sensing fiber (105, 200, 300) has a solid core (201) to guide light and a porous cladding (202) to protect the fiber (105, 200, 300) from physical damage and to enlarge the interface of the evanescent field and the test gas. A pulsed or modulated laser (103), a 3-dB optical coupler (104) and a photomultiplier tube (PMT) (107) form a typical OTDR sensing system. The pulse generator (102) is to control the pulse width, period, duty cycle of the pulsed laser (103). The data acquisition card (106) is to record the amplitude of the reflected light detected by the PMT (107). The controller (101) which usually is a computer is for signal recording and system synchronizing.

    Abstract translation: 描述了基于渐逝场感测的分布式光纤气体传感系统（100），其沿光纤（105,200,300）空间分辨并通过采用差分吸收激光雷达技术获得。 纤维（105,200,300）可以以多种方式布置，并且可以具有感测纤维（105,200,300）作为感测单元的多孔包壳（202）。 传感光纤（105,200,300）具有引导光的实芯（201）和多孔包层（202），以保护光纤（105,200,300）免受物理损伤并扩大消逝场的界面 和测试气体。 脉冲或调制激光器（103），3-dB光耦合器（104）和光电倍增管（PMT）（107）形成典型的OTDR传感系统。 脉冲发生器（102）用于控制脉冲激光器（103）的脉冲宽度，周期，占空比。 数据采集​​卡（106）记录由PMT（107）检测到的反射光的振幅。 通常是计算机的控制器（101）用于信号记录和系统同步。

    REFLECTIVE DISPLAY DEVICE AND COLOR STACK DISPLAY DEVICE
    7.
    发明公开
    REFLECTIVE DISPLAY DEVICE AND COLOR STACK DISPLAY DEVICE 审中-公开

    公开(公告)号：EP4451054A1

    公开(公告)日：2024-10-23

    申请号：EP23864107.0

    申请日：2023-11-28

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

    Inventor： ZHOU, Guofu ,  TANG, Biao ,  HUANG, Yongfeng ,  HU, Heyong ,  YUAN, Dong

    IPC: G02F1/1676

    Abstract: The application provides a reflective display device and a color laminated display device, and relates to the technical field of display. The reflective display device according to the present application includes: a first electrode which is a transparent electrode; a second electrode arranged opposite to the first electrode; a display layer arranged between an inner side of the first electrode and an inner side of the second electrode; the display layer including a plurality of pixel walls which are arranged in the display layer at intervals; and an accommodating cavity formed by two adjacent pixel walls and the inner side of the second electrode, the accommodating cavity being used for accommodating two color developing liquids, and each of the pixel walls has a color identical to the color developing liquid. Due to the fact that the color displayed by the pixel walls is the same as that displayed by the reflective display device, the color of external light passing through the pixel walls becomes the same as that of the reflective display device, so that influences of stray light on contrast ratio, color gamut and visual angle color cast of the reflective display device can be eliminated, thereby improving the color gamut and the contrast ratio of the reflective display device.

    DISPLAY STRUCTURE HAVING PAPER EFFECT AND MANUFACTURING METHOD THEREFOR
    8.
    发明公开
    DISPLAY STRUCTURE HAVING PAPER EFFECT AND MANUFACTURING METHOD THEREFOR 审中-公开
    ANZEIGESTRUKTUR MIT PAPIEREFFEKT UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP3136152A1

    公开(公告)日：2017-03-01

    申请号：EP14889788.7

    申请日：2014-04-22

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

    Inventor： ZHOU, Guofu ,  HAYES, Robert Andrew ,  GROENEWOLD, Jan

    IPC: G02B26/02 ,  G02F1/167

    CPC classification number: G02B26/005 ,  G02B5/021 ,  G02B5/0284 ,  G02F1/167

    Abstract: A display structure having a paper effect. The display structure comprises panel glass (1), a display layer (2) and substrate glass (3), wherein a paper layer (4) is provided under the substrate glass, and the panel glass (1), the display layer (2), the substrate glass (3) and the paper layer (4) are stacked in sequence. Also provided are an electrowetting display structure based on the display structure and a method for manufacturing the display structure having a paper effect. A piece of high-quality paper is placed under a substrate of the existing display structure as a diffuse reflection layer or a diffuse reflector, so as to provide required diffuse reflection and contrast approximate to paper. Compared with vacuum coating, the process is simpler, and avoids the expensive vacuum coating process, thereby greatly reducing manufacturing costs.

    Abstract translation: 具有纸效果的显示结构。 显示结构包括面板玻璃（1），显示层（2）和基板玻璃（3），其中在基板玻璃下方设置纸层（4），并且面板玻璃（1），显示层（2） ），基板玻璃（3）和纸层（4）依次层叠。 还提供了基于显示结构的电润湿显示结构和用于制造具有纸效果的显示结构的方法。 将一块高品质的纸张放置在现有显示结构的基板下面作为漫反射层或漫反射器，以便提供所需的漫反射和近似于纸的对比度。 与真空镀膜相比，该工艺更简单，避免了真空镀膜工艺的昂贵，大大降低了制造成本。

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