baber/WOPTO huggingface dataset:
Patent WO-2020199239-A1 (WO)
Inventor: ZHENG XUHUANG
IPC: G09G3/3266
Filed: 2019-04-11
Abstract: The present application provides an OLED display panel, comprising data lines, scan lines, and pixel units. One pixel unit comprises a red sub-pixel, a green sub-pixel, a first blue sub-pixel, and a second blue sub-pixel. Each sub-pixel comprises a first thin film transistor and a second thin film transistor. The scan signal transmitted by the scan line and the data signal transmitted by the data line are used for jointly enabling the first blue sub-pixel and the second blue sub-pixel to alternately display.
Patent WO-2020164182-A1 (WO)
Inventor: SHEN HAIYANG
IPC: G02F1/1337
Filed: 2019-04-16
Abstract: 本发明实施例公开了一种聚酰亚胺涂布方法及显示面板的制备方法。该聚酰亚胺涂布方法包括：提供玻璃基板及至少一个喷嘴；在玻璃基板上形成纳米材料填充图形凸版，该纳米材料填充图形凸版上形成有若干凸起；通过至少一个喷嘴于所述纳米材料填充图形凸版上喷涂聚酰亚胺液，以形成聚酰亚胺薄膜。
Patent WO-2020038011-A1 (WO)
Title: Lithium ion battery and preparation method therefor, and electric vehicle
Inventor: GUO ZIZHU
IPC: H01M10/0565
Filed: 2019-04-26
Abstract: Disclosed are a lithium ion battery, a preparation method and an electric vehicle, the lithium ion battery comprising a positive electrode, a negative electrode and a composite solid electrolyte layer located between the positive electrode and the negative electrode; the composite solid electrolyte layer comprises a positive electrode side solid electrolyte layer, a negative electrode side solid electrolyte layer, and an intermediate layer solid electrolyte layer sandwiched between the positive electrode side solid electrolyte layer and the negative electrode side solid electrolyte layer; the positive electrode side solid electrolyte layer, the negative electrode side solid electrolyte layer and the intermediate layer solid electrolyte layer all comprise a first inorganic solid electrolyte, and the intermediate layer solid electrolyte layer also comprises a second inorganic solid electrolyte.
Patent WO-2020220178-A1 (WO)
Inventor: LIANG MIN
IPC: G06K9/00
Filed: 2019-04-29
Abstract: Provided in the present invention are a method and system for detecting a position change of an electronic price tag, a controller and an electronic price tag. The method comprises: a controller sending a detection mode starting instruction; after receiving the instruction, first electronic price tags sending identity information thereof; second electronic price tags sending, according to the instruction, received identity information of adjacent electronic price tags to the controller; and the controller determining, according to the identity information of the adjacent electronic price tags, and prestored relationships between identity information of the second electronic price tags and the identity information of the adjacent first electronic price tags, position change conditions of the second electronic price tags. According to the above-mentioned technical solution, electronic price tags with position changes can be detected in time on the basis of change conditions of adjacent electronic price tags of the electronic price tags without performing re-positioning on all the electronic price tags in a supermarket, and re-positioning is performed, in a targeted manner, on the electronic price tags with position changes, saving on the power consumption of electronic price tags with unchanged positions and the power consumption of a system, and the service life of price tags is prolonged.
Patent WO-2019228129-A1 (WO)
Inventor: DING XIAOLIANG
IPC: G06F3/041
Filed: 2019-04-30
Abstract: L'invention concerne un circuit de détection de pixels et un procédé de commande, ainsi qu'un panneau d'affichage tactile Le circuit de détection de pixels comprend : de multiples modules de détection de pixels (00) disposés dans un réseau ; et au moins une ligne de lecture (R), chaque ligne de lecture (R) étant connecté à un groupe de modules de détection de pixels, et chaque groupe de modules de détection de pixels comprenant au moins deux colonnes de modules de détection de pixels. Les multiples modules de détection de pixels (00) inclus dans chaque groupe de modules de détection de pixels sont respectivement connectés à différentes extrémités de signal de commande et sont utilisés pour transmettre des signaux électriques aux lignes de lecture (R) reliées à celui-ci en temps ou en fréquence sous l'action de signaux de commande générés par les différentes extrémités de signaux de commande.
Patent WO-2019210871-A1 (WO)
Title: Automatic cleaning system for mixing device, and application thereof
Inventor: ZHAI CHUNQIN
IPC: B01F15/00
Filed: 2019-05-01
Abstract: Provided are an automatic cleaning system (100) for a mixing device, and an application thereof; the automatic cleaning system (100) comprises an automatic cleaning tool; the automatic cleaning tool comprises a cleaning head (110) in communication with a cleaning medium delivery pipe (120), and the cleaning head (110) is drivingly connected to a transmission apparatus (140); the cleaning head (110) follows the transmission apparatus (140) in multi-angle motion. The automatic cleaning system (100) enables high-precision automatic cleaning of the mixing device, has a simple structure and is easy to operate, is suitable for use in cleaning of mixing devices in various fields, and is especially suitable for cleaning mixing devices which are difficult to clean and have a high container depth.
Patent WO-2020098234-A1 (WO)
Title: 带车辆启动功能的电动工具电源
Inventor: LEI YUN
IPC: H02J7/00
Filed: 2019-05-08
Abstract: 本申请公开一种带车辆启动功能的电动工具电源，包括供电组件、第一输出接口和第二输出接口。所述供电组件用于储存并提供电能。所述第一输出接口与所述供电组件电连接，所述供电组件用于通过所述第一输出接口为电动工具提供工作电压。所述第二输出接口与所述供电组件电连接，所述供电组件用于通过所述第二输出接口为车辆的启动装置输出瞬时大电流，以启动所述启动装置。本申请提高了电动工具电池的利用率。
Patent WO-2020042712-A1 (WO)
Inventor: YAN CHAOYI
IPC: H04W72/04
Filed: 2019-06-10
Abstract: Disclosed in the embodiments of the present application are a communication method and device. The method comprises: a first base station receiving first data transmitted from a server; the first base station transmitting first coordination information to a second base station within a first special symbol of a first subframe; the first base station receiving second coordination information transmitted from the second base station within a second special symbol of a third subframe, the second subframe being later than the first subframe and the third subframe; and the first base station using a time-frequency resource block to transmit the first data to a terminal. The first base station and the second base station can directly use subframes in an air interface resource to transmit coordination information therebetween, without using other forwarding devices for forwarding, so the negotiation between the first base station and the second base station is faster, and the first base station and the second base station can jointly transmit the first data and the second data to the terminal more quickly, thereby reducing the transmission delay of jointly transmitting the data to the terminal by the first base station and the second base station.
Patent WO-2021012210-A1 (WO)
Inventor: YANG ZHIGUO
IPC: B23P21/00
Filed: 2019-07-24
Abstract: An atomizing core automatic feeding and oil-injecting and mouthpiece automatic feeding and screwing device, comprising: a machining table (1), a dividing plate (20) used for mounting jigs (22) being provided on the machining table; an atomizing core feeding mechanism (3) for feeding atomizing cores (23) to be machined to the jigs on the dividing plate one by one; an atomizing core oil-injecting mechanism (4) for injecting oil to the atomizing cores on the jigs on the dividing plate; a mouthpiece feeding and pre-assembling mechanism (6) for pre-assembling mouthpieces on the atomizing cores on the jigs on the dividing plate; an assembling mechanism (7) for assembling the mouthpieces and the atomizing cores on the jigs on the dividing plate; and a discharging mechanism (8) for discharging finished products that have completed all operation procedures. The device can improve production efficiency, greatly reduce the labor intensity of workers, and remarkably improve the degree of automation.
Patent WO-2021016750-A1 (WO)
Title: Transcatheter aortic prosthetic valve, delivery system, and delivery method
Inventor: Yan Chaowu
IPC: A61F2/24
Filed: 2019-07-26
Abstract: A transcatheter aortic prosthetic valve, a delivery system, and a delivery method. The prosthetic valve comprises a latticed stent (1) capable of being radially compressed and expanded and prosthetic valve leaflets (2) mounted on the inner side of the stent (1), the stent (1) is provided with an inflow end (4) and an outflow end (5), a plurality of fixing portions (6) expanded outwards and bent downwards to form semicircular barbs are provided at the outflow end (5) of the stent (1), one end of each fixing portion (6) is connected to the stent (1), and the other end thereof faces the direction of a free end of the inflow end (4). The delivery system comprises a delivery tube sheath (9) and an accommodating tube sheath (10), the accommodating tube sheath (10) is used for accommodating the stent (1) in a contraction state, and the fixing portions (6) and adjusting portions (7) are positioned in the delivery tube sheath (9). The delivery method comprises: in a process of replacing aortic heart valves, the fixing portions (6) are firstly released to enter aortic sinuses (11), then the stent (1) is released to enter an in-situ aortic valve (12) area, and the fixing portions (6), the adjusting portions (7), and the expanded stent (1) are interacted to clamp the in-situ aortic valves (12). The positioning precision and accuracy of the aortic prosthetic valve can be improved, and the success rate of valve replacement is improved.
Patent WO-2020211218-A1 (WO)
Title: Terminal screen display control method and apparatus, and storage medium
Inventor: YEN CHIAFU
IPC: G06F3/14
Filed: 2019-07-30
Abstract: The present disclosure relates to a terminal screen display control method and apparatus, and a storage medium. A terminal screen comprises an integrated display layer, wherein the display layer comprises a first display zone and a second display zone, and the pixel density of the first display zone is greater than the pixel density of the second display zone. The method comprises: controlling a transition zone in the first display zone to display according to a target pixel density; controlling zones other than the transition zone in the first display zone to display according to a first pixel density; and controlling the second display zone to display according to a second pixel density, wherein the target pixel density is less than the first pixel density and greater than the second pixel density. By means of schematizing the transition zone in the first display zone that has a higher pixel density, the present disclosure is capable of effectively camouflaging differences in display effects caused by the different pixel densities of the first display zone and the second display zone, which improves the fusion of the display effects of the two, such that the terminal screen has a better overall display effect.
Patent WO-2020025034-A1 (WO)
Title: Master/slave switching method for wearable apparatus and related product
Inventor: GONG JINHUA
IPC: H04R1/10
Filed: 2019-08-01
Abstract: Embodiments of the present application disclose a master/slave switching method for a wearable apparatus and a related product. The wearable apparatus comprises: a first earphone and a second earphone. The wearable apparatus is connected to an electronic device. The method comprises the following steps: an electronic device acquiring a first earphone audio type matching a first earphone and a second earphone audio type matching a second earphone, wherein different audio types correspond to different priorities; the electronic device determining a first application currently operating; and the electronic device determining, according to the first application, the first earphone audio type, and the second earphone audio type, whether to perform switching between a master earphone and a slave earphone for the wearable apparatus. The technical solution provided by the present application achieves an improved user experience.
Patent WO-2020029911-A1 (WO)
Title: Atomization core, atomizer and electronic cigarette
Inventor: QIU WEIHUA
IPC: A24F47/00
Filed: 2019-08-05
Abstract: Provided are an electronic cigarette, and an atomizer and an atomization core thereof. An atomization core (30) comprises a fixed base (31), a movable member (33) and a heating assembly (35). A side wall, in a first direction, of the fixed base (31) is provided, in a penetrating manner, with a liquid inlet (310) which is in communication with a liquid storage cavity (1143). The movable member (33) is movably fitted and connected inside the fixed base (31) in the first direction. A side wall, in the first direction, of the movable member (33) is provided, in a penetrating manner, with a liquid guide opening (332) in communication with an atomization cavity (330). The heating assembly (35) is fixedly fitted and connected inside the atomization cavity (330). The movable member (33) reciprocates, in the first direction and relative to the fixed base (31), between an open position where the liquid guide opening (332) is in communication with the liquid inlet (310) and a closed position where the liquid guide opening (332) and the liquid inlet (310) are not aligned. In the closed position, the movable member (33) at least partially protrudes to the fixed base (31).
Patent WO-2020078086-A1 (WO)
Inventor: HE XIANJUN
IPC: G06F11/32
Filed: 2019-08-13
Abstract: 一种显示方法、装置、系统、终端、光伏板及可读存储介质，该方法包括：接收通过光线采集装置获取的光线透过光伏板每个区域后的光线强度（S101）；根据每个区域对应的光线强度，确定光伏板上的杂物附着信息，其中杂物附着信息包括杂物覆盖率和/或杂物附着分布（S102）；显示杂物附着信息（S103）。可通过终端及时查看光伏板上的杂物附着信息，从而及时进行清理，提高阳光接收效率。
Patent WO-2020224087-A1 (WO)
Inventor: DU CHAO
IPC: F24F11/00
Filed: 2019-08-19
Abstract: 一种空调控制的方法、装置及计算机存储介质。所述方法包括：确定与第一热量对应的处于物联网中的空调的第一冷负荷，其中，所述第一热量是室外温度波通过所述空调所在的围护结构散入的；确定与第二热量对应的所述空调的第二冷负荷，其中，所述第二热量是所述围护结构内的设备和人体散出的；根据所述第一冷负荷和所述第二冷负荷，控制所述空调的运行。这样，根据空调的冷负荷，确定出最适宜的空调运行模式方案并执行，提高了空调的智能性。
Patent WO-2020038444-A1 (WO)
Inventor: CHENG MAN FAAT
IPC: F24F1/04
Filed: 2019-08-22
Abstract: 本发明涉及一种基于半导体致冷片的随身携带型空调，包括气密外壳、气密壳盖、电池组、单片机、半导体致冷片和空气调节组件，单片机与电池组和半导体致冷片电连接；空气调节组件包括空气调节端和温度扩散端，空气调节端和温度扩散端分别连接在半导体致冷片的两面，空气调节端包括微型高压风扇、热交换器、隔热通风管道和空气再循环器。其有益效果是：本发明的随身携带型空调具有空气调节效能显著，结构设计合理、使用方便、易于携带的特点，适合全球非极端气候地区使用，特别适合需要长时间处于户外的人士。可有效调节空气冷热温度，而且体积细小，大小约为成年人手掌大小，重量只有约800克，可轻易挂在腰部将风吹入衣服内。
Patent WO-2021035735-A1 (WO)
Title: Method and system for positioning movable objects and related device
Inventor: MA JIANYUN
IPC: G01C21/00
Filed: 2019-08-30
Abstract: A method and system for positioning movable objects and a related device, the method comprising: acquiring movement state data of each movable object amongst a plurality of movable objects (S601); on the basis of the movement state data of each movable object, determining relative navigation information between the plurality of movable objects (S602); and sending the relative navigation information to at least one movable object amongst the plurality of movable objects (S603). The present method can increase the accuracy and reliability of relative navigation information between movable objects.
Patent WO-2021042245-A1 (WO)
Title: Method and apparatus for controlling heat dissipation device
Inventor: ZHAO XU
IPC: G06F11/32
Filed: 2019-09-02
Abstract: A method and apparatus for controlling a heat dissipation device (110). The heat dissipation device (110) is used for performing heat dissipation on an electronic terminal. The method comprises: determining predicted load information of an application load status of the electronic terminal within a prediction time period (S310); and adjusting an initial threshold temperature of the heat dissipation device (110) to be a predicted threshold temperature according to the predicted load information (S320). By using the method, dynamic adjustment to the heat dissipation device (110) can be achieved, and power consumption can be reduced while a sufficient heat dissipation capability is provided.
Patent WO-2020052543-A1 (WO)
Title: Single-domain antibodies against cd33 and constructs thereof
Inventor: ZHANG YAFENG
IPC: A61P35/00
Filed: 2019-09-10
Abstract: The present application provides single-domain antibodies targeting CD33 and constructs thereof, including chimeric receptors, immune effector cell engagers and immunoconjugates. Further provided are engineered immune cells (such as T cells) comprising an anti-CD33 chimeric receptor and optionally a second chimeric receptor targeting a second antigen or epitope. Pharmaceutical compositions, kits and methods of treating cancer are also provided.
Patent WO-2021046719-A1 (WO)
Inventor: TANG YONGBING
IPC: H01M10/058
Filed: 2019-09-10
Abstract: 一种二次电池的制备方法，包括：将第一正极片（2）与第一隔膜（3）、第一负极片（4）、第一电解液和第一封装外壳（1）进行组装，制备第一电池；将第一电池进行充放电循环；然后，拆解第一电池，取出经过表面钝化处理的第一正极片（2）；获取第二正极片（7），第二正极片（7）包括：第二正极材料和第二正极集流体，第二正极材料与第一正极材料相同或不相同，第二正极集流体为表面经过钝化处理的第一正极集流体；将第二正极片（7）与第二隔膜（8）、第二负极片（9）、第二电解液和第二封装外壳（6）进行组装，第二电解液包含双氟磺酰亚胺盐和/或双(三氟甲基磺酰)亚胺盐，制备二次电池。通过该制备方法制得的二次电池可有效抑制含FSI和TFSI的电解液对正极集流体的腐蚀。
Patent WO-2021051260-A1 (WO)
Inventor: ZHAO WEI
IPC: A61P19/08
Filed: 2019-09-17
Abstract: 一种中药组合物在制备治疗跌打损伤药物中的用途。所述的中药组合物主要由金银花、白花蛇舌草、玄参、山慈菇、地黄、白芍、当归、甘草、娱蛤、青风藤、鹿衔草制备而成。所述的中药组合物经动物学实验证实，可以有效减少大鼠软组织损伤部位各种炎症因子，减轻大鼠损伤部位肿胀及瘀斑等症状。临床实验表明，所述中药组合物可以有效缓解软组织损伤患者临床症状，治疗有效率达95％以上。
Patent WO-2020252981-A1 (WO)
Title: 一种数据发送方法、网络设备
Inventor: LIU JIANHUA
IPC: H04W24/02
Filed: 2019-09-30
Abstract: 本发明公开了一种数据发送方法、网络设备、芯片、计算机可读存储介质、计算机程序产品以及计算机程序，所述方法包括：向第二网络设备发送第一信息；其中，所述第一信息用于辅助第二网络设备确定是否进行执行针对终端的被叫数据早期发送。
Patent WO-2020088292-A1 (WO)
Title: 配光元件、光源组件及照明灯具
Inventor: QIAO SHENGJIE
IPC: F21V7/04
Filed: 2019-10-21
Abstract: 本发明公开一种配光元件、光源组件及照明灯具。所述配光元件具有光源腔、第一面、入射面和出射面，所述第一面与所述出射面相对设置，所述光源腔由所述第一面向所述出射面所在一侧凹陷形成，所述入射面为所述光源腔的内表面，且所述入射面包括菲涅尔表面，所述出射面包括凹形反射面，所述凹形反射面向所述入射面所在一侧凹陷。该配光元件设置光源腔，该光源腔与出射面相对布置，因此发光单元可以位于配光元件的下方，此种配光元件匹配较少的发光单元即可达到出光均匀性的要求，因此采用该配光元件的照明灯具具有更低的成本。同时，光源腔可以容纳发光单元，使得配光元件和发光单元整体占据的空间有所减小，以此提升照明灯具的空间利用率。
Patent WO-2020143268-A1 (WO)
Inventor: XIE JUNJIE
IPC: G09F9/30
Filed: 2019-10-22
Abstract: 一种显示面板，包括阵列基板（1）、第一柔性电路板（5）、非柔性电路板（7）、控制电路板（8）以及第二柔性电路板（6）；第一柔性电路板（5）电连接于阵列基板（1）；非柔性电路板（7）电连接于第一柔性电路板（5）；控制电路板（8）设于非柔性电路板（7）之上，并与非柔性电路板（7）电连接；第二柔性电路板（6）电连接于非柔性电路板（7）。显示面板实现了窄边框，提高了贴合精度，避免了热膨胀系数相差较大造成的不稳定，提高了制造良率。
Patent WO-2020134435-A1 (WO)
Inventor: LIU HUA
IPC: F04D29/056
Filed: 2019-10-24
Abstract: 一种压缩机以及冷媒循环系统。该压缩机包括叶轮（1）、推力轴承（2）及扩压器（3）。扩压器（3）一侧侧面（31）抵接叶轮（1），且另一侧设有轴向内凹部（32），轴向内凹部（32）的底面抵顶推力轴承（2）。该结构采用扩压器（3）直接定位推力轴承（2），有效缓解了转子长度过长造成的轴承负载大和弯曲模态临界转速低的问题，同时降低加工和装配难度，提高装配效率和装配精度，使轴承转子系统的可靠性和稳定性提升。
Patent WO-2020134471-A1 (WO)
Inventor: ZHU ZHIMIN
IPC: H01Q21/08
Filed: 2019-10-25
Abstract: 一种毫米波阵列天线模组和移动终端。所述毫米波阵列天线模组包括介质基板、贴设于所述介质基板一侧的射频集成电路芯片、设置于所述介质基板背离所述射频集成电路芯片一侧的呈阵列排布的若干天线单元以及形成于所述介质基板内的馈电网络，每个所述天线单元均通过所述馈电网络与所述射频集成电路芯片电连接，每个所述天线单元均包括具有背腔的基片集成波导以及贴设在所述背腔上的贴片天线。采用基片集成波导背腔贴片天线的结构能够有效的减小表面波效应，从而能够使相控阵天线获得更大的扫描角度，进而可以改善大角度扫描时的天线性能。
Patent WO-2021087986-A1 (WO)
Inventor: CHAI XIAOMENG
IPC: H04W28/00
Filed: 2019-11-08
Abstract: 本申请公开了一种MCS配置方法及装置，可以实现非RRC连接态的UE在支持qam64LowSE时可以使用更低的频谱效率和码率以获取更高的传输可靠性。该方法包括：终端设备接收MCS配置信息，并根据MCS配置信息在终端设备支持的MCS表中确定MCS配置。其中，MCS配置信息用于指示如下至少一项：第一MCS表中的MSC配置、第二MCS表中的MSC配置。本申请通过默认或者配置或者预定义MCS配置信息使用的表格，网络设备可以不需要额外配置指示信息来示使用哪个MCS表格，从而可以节省信令开销。并且网络设备可以在不知道终端能力的情况下配置qam64LowSE对应MCS表中的MCS配置，使得支持qam64LowSE的终端设备可以使用更低的频谱效率和码率以获取更高的传输可靠性。
Patent WO-2020155790-A1 (WO)
Inventor: WU BOKUN
IPC: G06K9/20
Filed: 2019-11-19
Abstract: 一种理赔信息提取方法和装置、电子设备，所述方法包括：获取与理赔案件相关的图像数据集合（102）；将所述图像数据集合中的图像数据输入至第一分类模型中进行分类计算，并基于分类计算结果对所述图像数据集合中的图像数据进行分类；其中，所述第一分类模型为基于若干被标注了图像类别的图像数据样本训练出的机器学习模型（104）；从分类得到的各个图像类别的图像数据中分别提取用于理赔的关键信息（106）。
Patent WO-2021088135-A1 (WO)
Inventor: HE JINQIAN
IPC: F02B53/00
Filed: 2019-11-21
Abstract: A cavity (10) having a Zelun circle shape, a cavity (101) having a Zelun circle shape being provided inside the cavity, wherein the Zelun circle is a closed shape formed by connecting two arcs (AB, CD) having equal radian and two curves (AD, BC) in sequence connected end to end; the centers of the two arcs coincide and the center is denoted as K; the two arcs are distributed relative to each other; the radii of the two arcs are R1 and R2, respectively, and R1<R2; the opposite end points of the two arcs on the same side are connected by means of a curve, so that the two curves are connected between the two arcs, and the distance between any two points that pass through the center K and intersect with the Zelun circle is the sum of R1 and R2. The cavity can be widely used in various mechanical devices, such as a gas collector, a compressor, a heat engine, an engine, an internal combustion engine, a gas engine, a pneumatic motor, a steam turbine, a water turbine or a pump, etc., has a simple structure and high thermal efficiency. Also provided are a fluid working device and an engine that have the cavity.
Patent WO-2020108640-A1 (WO)
Inventor: WANG BIAO
IPC: H04N19/70
Filed: 2019-11-29
Abstract: A method of decoding a block of a picture, comprising: obtaining an indication parameter for a current coding block (801). The indication parameter represents whether a multi-hypothesis prediction is applied to the current coding block. When the indication parameter represents that the multi-hypothesis prediction is applied to the current coding block (802), decoding the current coding block according to a planar mode (803).
Patent WO-2021077555-A1 (WO)
Title: 信息发布功能模组及智慧路灯
Inventor: QIN HAIBO
IPC: G09F9/302
Filed: 2019-12-04
Abstract: 一种信息发布功能模组（120）及智慧路灯，属于路灯照明技术领域。信息发布功能模组（120）包括模组主体、第一显示屏（121）和第二显示屏（122），模组主体包括第一侧表面、第二侧表面、第三侧表面和第四侧表面，第二显示屏（122）固定于模组主体上并且贴合于第二侧表面上，第二显示屏（122）具有第二显示面，第一显示屏（121）枢接于第二显示屏（122）的第一侧，第一显示屏（121）具有第一显示面，第一显示屏（121）具有折叠位置和打开位置，当第一显示屏（121）处于折叠位置时，第一显示屏（121）贴合于第一侧表面上，第一显示面与第二显示面相交；当第一显示屏（121）处于打开位置时，第一显示面与第二显示面重合，由此，可有效地解决现有智慧路灯的LED显示屏存在视频展开不立体、外观单一、不适合模块化设计的技术问题。
Patent WO-2020258764-A1 (WO)
Inventor: WU YIDA
IPC: H01M4/505
Filed: 2019-12-17
Abstract: Provided is a positive electrode active material having a spinel structure, comprising a lithium-containing compound particle with the chemical formula being Li  1+x Ni  0.5-y Mn  1.5-z O  u , wherein -0.2≤x≤0.2, -0.2≤y≤0.2, -0.2≤z≤0.2, and 3.8≤u≤4.2. The surface of the lithium-containing compound particle has a rocksalt-phase surface layer. The rocksalt-phase surface layer has a phosphorus distribution along a gradient, and contains a metal element occupying octahedral spinel site 16c or 8a. Compared with the prior art, the provided surface gradient phosphorus-doped spinel positive electrode active material for a lithium ion battery has the following advantages: (1) the preparation method is simple in process and low in costs; and (2) the comprehensive performance of the spinel positive electrode active material can be greatly improved and an excellent development prospect is provided.