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公开(公告)号：US11835831B2
公开(公告)日：2023-12-05
申请号：US16486225
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: G02F1/137 , E06B9/24 , G02F1/1334 , G02F1/1337 , G02F1/1343
CPC classification number: G02F1/137 , E06B9/24 , G02F1/1334 , G02F1/1337 , G02F1/13439 , G02F1/134309 , E06B2009/2464 , G02F1/13345 , G02F1/13712 , G02F2203/11
Abstract: An infrared reflection device includes a power supply assembly, a plurality of switches, and two relatively disposed light-transmitting conductive substrates packaging a regulating area. Each of the light-transmitting conductive substrates comprise a light-transmitting substrate and an electrode layer. The regulating area is filled with a liquid crystal mixture; the electrode layers are arranged on opposite surfaces of the two light-transmitting substrates; the electrode layer of at least one of the light-transmitting conductive substrates comprises at least two mutually independent electrode areas; and electrode areas of the same light-transmitting conductive substrate, after being respectively connected in series to the switches, are jointly connected in parallel to the same electrode of the power supply assembly.
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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.
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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
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.
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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
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.
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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.
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Patent Agency Ranking
6.发明申请公开(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
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.
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公开(公告)号：US11143902B2
公开(公告)日：2021-10-12
申请号：US16491490
申请日：2017-11-15
Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , G.H.S ADVANCED EQUIPMENT TECHNOLOGY CO., LTD.
Inventor： Guofu Zhou , Xiaowen Hu , Nan Li
IPC: G02F1/1334 , G02F1/137
Abstract: A total-reflection infrared reflection device and a preparation method thereof. The device includes two light-transmitting conductive substrates disposed oppositely, the two light-transmitting conductive substrates are packaged to form a seal cavity, in the seal cavity, opposite surfaces of the two light-transmitting conductive substrates are respectively coated with a first liquid crystal layer capable of reflecting left-handed polarized light and a second liquid crystal layer capable of reflecting right-handed polarized light, the first liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a left-handed spiral structure, the second liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a right-handed spiral structure, the cholesteric liquid crystal with the left-handed spiral structure can reflect left-handed polarized light, and the cholesteric liquid crystal with the right-handed spiral structure can reflect right-handed polarized light.
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8.发明授权公开(公告)号：US09779672B2
公开(公告)日：2017-10-03
申请号：US15123970
申请日：2014-03-06
Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , Shenzhen Guohua Optoelectronics Institute
Inventor： Guofu Zhou , Fahong Li , Robert Andrew Hayes
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.
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9.发明授权公开(公告)号：US11215811B2
公开(公告)日：2022-01-04
申请号：US16478185
申请日：2017-11-15
Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , Academy of Shenzhen Guohua Optoelectronics
Inventor： Guofu Zhou , Rui Zhou , Hongwei Jiang , Yuanyuan Guo
Abstract: Disclosed is a drying-wetting separated filling method and a filling apparatus for an electrowetting display device. The filling method comprises filling a non-polar solution into pixel grids on a lower substrate of an electrowetting display device in air, and filling a polar solution to immediately cover the non-polar solution filled after filling the non-polar solution into the pixel grids. Compared with filling the non-polar solution into the polar solution, directly filling the non-polar solution in air has better filling uniformity, easier operation and control. With the method, the fillings of the polar solution and the non-polar solution are easy, having a higher filling efficiency, and no air bubble residue.
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公开(公告)号：US11209711B2
公开(公告)日：2021-12-28
申请号：US17304135
申请日：2021-06-15
Applicant: South China Normal University , Shenzhen Guohua Optoelectronics Co., Ltd. , Academy of Shenzhen Guohua Optoelectronics
Inventor： Guofu Zhou , Xiaowen Hu , Wei Zhao , Haitao Sun
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.
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