baber/WOPTO huggingface dataset:
Patent WO-2020094028-A1 (WO)
Inventor: TANG ZHONGZHI
IPC: C03C10/00
Filed: 2019-11-06
Abstract: 一种玻璃材料、玻璃材料的制造方法以及电子设备。该玻璃材料含有晶体，该玻璃材料一侧的至少部分区域的化学强化层深度大于厚度的21％，该厚度为该玻璃材料一侧的表面与该玻璃材料另一侧的表面之间的距离，该一侧与该另一侧相对。其中，玻璃材料含有晶体，可以增加玻璃材料的断裂韧性，并且玻璃材料单侧具有超深的化学强化层深度，从而提高玻璃材料的抗摔性。
Patent WO-2021056719-A1 (WO)
Inventor: ZHOU GONGBO
IPC: B25J11/00
Filed: 2019-11-11
Abstract: 一种风井巡检机器人，包括绳驱动装置、滑轮式平衡装置、机器人本体以及直线导向件；绳驱动装置，包括动力装置以及一根以上的驱动绳索；滑轮式平衡装置的一端与机器人本体固定，而机器人本体则与直线导向件之间导向连接；另一端则具有与驱动绳索数量一致的输入端；每一根驱动绳索的一端均与动力装置的输出端连接，另一端则与滑轮式平衡装置对应的输入端连接；各驱动绳索输出的动力，经滑轮式平衡装置的动力传动后，能够均匀地作动在机器人本体上，防止机器人本体旋转，带动机器人本体仅做沿着直线导向件平移的运动。因此，该机器人可以代替人工在井筒中进行巡检，能够有效地避免漏检，防止人工巡检所具有的安全隐患。
Patent WO-2020211343-A1 (WO)
Title: Solar cell sheet and solar cell assembly
Inventor: YUAN YUNLAI
IPC: H01L31/05
Filed: 2019-11-11
Abstract: A solar cell sheet and a solar cell assembly. The solar cell sheet comprises a plurality of sub-cell sheet units and solder strips. Adjacent sub-cell sheet units are superimposed and connected to form a cell string by means of the solder strips; solder strip receiving grooves are disposed at positions, where the solder strips are distributed, in the overlapped areas of the front and rear sides of each sub-cell sheet unit; support structures are arranged between the adjacent solder strip receiving grooves; the superposition of the support structures on the front and rear sides of two adjacent sub-cell sheet units can reduce the height difference of the overlapped position and dispersedly releases the stress generated by the solder strips between the adjacent cell sheets; the support structures have functions of reinforcing the overlapped areas of the front and rear sides of the cell sheets, can improve the toughness of the overlapped areas of the front and rear sides of the cell sheets, reduces the stress on the sub-cell sheets caused by the solder strips when the solar cell module is laminated, and reduces the possibility of cracking.
Patent WO-2020125353-A1 (WO)
Inventor: YANG QINGRUI
IPC: H03H9/17
Filed: 2019-11-27
Abstract: The present invention relates to a bulk acoustic wave resonator, comprising: a base; an acoustic mirror; a bottom electrode, disposed at an upper side of the base; a top electrode; and a piezoelectric layer, disposed over the bottom electrode and between the bottom electrode and the top electrode; an area in which the acoustic mirror, the bottom electrode, the piezoelectric layer and the top electrode overlap in a thickness direction of the base being an effective area of the resonator; the resonator further comprising at least one groove, the groove being disposed extending around the effective area. The groove may be disposed at a lower side or at an upper side of the piezoelectric layer; or, the groove may be disposed at an upper side or at a lower side of the bottom electrode. The present invention further relates to a filter having said resonator, an electronic device having said filter or resonator, and a method of increasing parallel impedance of the bulk acoustic wave resonator.
Patent WO-2020125409-A1 (WO)
Title: 一种时隙调度的方法、设备及介质
Inventor: WANG LEI
IPC: H04L5/00
Filed: 2019-12-03
Abstract: 本申请公开了一种时隙调度的方法、设备及介质，用以缓解现有技术中终端在每个时隙监听PDCCH内调度数据的DCI，浪费能量的问题。本申请网络侧设备从为终端配置的多个调度信息组中选择终端使用的至少一个调度信息组；网络侧设备通过DCI指示终端在一个或者多个时隙内使用至少一个调度信息组进行数据传输。由于从多个调度信息组中选择终端使用的至少一个调度信息组，通过DCI指示终端在一个或多个时隙内使用所述至少一个调度信息组进行数据传输，以使终端根据接收到的至少一个调度信息组在一个或多个时隙内进行数据传输，终端通过DCI确定在多个时隙内进行数据传输，不需要在每个时隙中单独检测下行控制信道，降低终端的能量消耗。
Patent WO-2021036087-A1 (WO)
Inventor: YAO ZHENHU
IPC: E03C1/046
Filed: 2019-12-06
Abstract: The present application discloses a multifunctional water path and a water mixing valve. The multifunctional water path comprises: a first water path; a second water path, wherein water outputted from the first water path and water outputted from the second water path are mixed to form mixed water; a flow sensor, wherein the flow sensor is provided on at least one of the first water path and the second water path; a temperature sensor, wherein the temperature sensor is provided on at least one of the first water path and the second water path; and an ozone generation module, wherein the ozone generation module is provided on at least one of the first water path and the second water path. In the multifunctional water path and the water mixing valve provided in the present application, the ozone generation module is controlled to ensure the ozone concentration is stable and effective under various conditions, thereby ensuring that the concentration of ozone water acquired by a user is appropriate, and facilitating removal of pesticide residues on fruits and vegetables washed by a user.
Patent WO-2021114290-A1 (WO)
Inventor: TAN JIANXIN
IPC: B62K13/02
Filed: 2019-12-13
Abstract: A family bicycle, comprising a family bicycle main body (100). The family bicycle main body comprises a stroller assembly (10) and a bicycle assembly (20). A stroller frame (11) is connected to a first connecting vehicle tube (111) having a hollow structure. The bicycle assembly comprises a bicycle frame (21). The bicycle frame comprises a front fork (211), a rear fork (212), a second connecting vehicle tube (213) and a third connecting vehicle tube (214). The front fork is detachably connected to the second connecting vehicle tube. The third connecting vehicle tube is located between a second rear wheel (23) and a vehicle seat (24). The first connecting vehicle tube is, selectively, detachably connected to the second connecting vehicle tube, or detachably connected to the third connecting vehicle tube after the front fork is detached, such that the stroller assembly can be connected to the front end or rear end of the bicycle assembly. The stroller assembly is, selectively, detachably connected to the second connecting vehicle tube or the third connecting vehicle tube of the bicycle assembly by means of the first connecting vehicle tube, such that the stroller assembly can be selectively installed at the front end or rear end of the bicycle assembly according to the physical strength of the rider and the preference of the child.
Patent WO-2020253172-A1 (WO)
Inventor: GAO HAIBO
IPC: B63C11/52
Filed: 2019-12-17
Abstract: A leg-arm-propeller combined underwater robot, comprising: a machine frame (1), an operating mechanism (2), a walking mechanism (3) and a propulsion mechanism (4), wherein the walking mechanism (3) is suitable for implementing the walking of the leg-arm-propeller combined underwater robot; the propulsion mechanism (4) is suitable for implementing the in-water floating movement of the leg-arm-propeller combined underwater robot; the operating mechanism (2) comprises a first mechanical arm (210), a second mechanical arm (220) and a first installation seat (230), and the first installation seat (230) is detachably connected to the machine frame (1); and the first mechanical arm (210) and the second mechanical arm (220) are both rotatably connected to the first installation seat (230), and the rotating center of the first mechanical arm (210) is the same as that of the second mechanical arm (220).
Patent WO-2021036106-A1 (WO)
Title: Illumination assembly for use in forming low beam widened region light shape of vehicle lamp
Inventor: NIE RUI
IPC: F21S41/25
Filed: 2019-12-18
Abstract: An illumination assembly for use in forming a low beam widened region light shape (200) of a vehicle lamp, the assembly comprising a support piece (1), a light guide piece (2) and a lens (3). The light guide piece (2) is clamped on the support piece (1). The lens (3) comprises a connection part (31) and a light exit part (32). The support piece (1) and the light guide piece (2) are clamped on the connection part (31). The light exit part (32) is provided with a first arc-shaped light-emitting surface (321) that is inwardly recessed toward the direction nearing the light guide piece (2), and the transverse cross-sectional line of the first arc-shaped light-emitting surface (321) is an arc that is inwardly recessed at two sides toward the middle.
Patent WO-2021128178-A1 (WO)
Title: 一种镜头模组及终端设备
Inventor: XU LINGYUN
IPC: G02B7/02
Filed: 2019-12-26
Abstract: 一种镜头模组及终端设备，涉及光学镜头的技术领域，包括：镜筒（10）和收容于镜筒（10）内的镜片组件（20）；镜筒（10）包括具有通光孔（11a）的镜筒顶壁（11）和围设在镜筒顶壁（11）上的镜筒侧壁（12），镜筒顶壁（11）包括用于承载镜片组件（20）的内壁面（111）、与内壁面（111）相对的外壁面（112）、以及连接在内壁面（111）与外壁面（112）之间的第一斜面（113），镜筒顶壁（11）还包括连接在第一斜面（113）与外壁面（112）之间的第二斜面（114），第一斜面（113）自第二斜面（114）的远离外壁面（112）的一端沿远离通光孔（11a）的中心轴线的方向向内壁面（111）倾斜延伸。解决了现有技术中镜头模组容易产生杂光、影响拍摄效果的技术问题。
Patent WO-2020211460-A1 (WO)
Title: Logical sharding method and system for blockchain nodes
Inventor: JI JIANXUN
IPC: G06F3/06
Filed: 2019-12-30
Abstract: The present application discloses a logical sharding method and system for blockchain nodes. The system comprises M supernodes, verification nodes, and ordinary nodes; and the method comprises: dividing each supernode into M logical shards, wherein the M supernodes comprise a first supernode, a second supernode, and a third supernode, and the first supernode comprises a first supernode A shard, a first supernode B shard, and a first supernode C shard; and using the first supernode, the second supernode, and the third supernode as main chain nodes, and using the first supernode A shard, a second supernode A shard, and a third supernode A shard as first logical main chain nodes. The method in the present application improves the TPS and vertical expansion capabilities of blockchain systems, and enables nodes of multiple logical main chains to generate blocks concurrently so as to increase the number of blocks per second.
Patent WO-2021134218-A1 (WO)
Inventor: HUO LEI
IPC: B32B15/08
Filed: 2019-12-30
Abstract: 一种覆铜板的制备方法，其特征在于，包括如下步骤：将液晶聚合物（liquid crystal polymer，LCP）薄膜进行等离子表面处理；将经过表面处理的LCP薄膜的单面或双面与铜箔等速通过加热辊进行第一次热压处理；将第一次热压处理后的LCP薄膜裁剪处理得到半成品覆铜板；将所述半成品覆铜板的双面附上高温保护膜，然后进行高温平板热压处理；回收所述高温保护膜，得到所述覆铜板。所述的覆铜板的制备方法具备较高的良品率和降低的工艺成本，适合大规模推广和应用。
Patent WO-2021134575-A1 (WO)
Title: Display control method and device
Inventor: LI DONG
IPC: G02B27/01
Filed: 2019-12-31
Abstract: A display control method and a head-mounted display device (103). The display control method is applied to the head-mounted display device (103), and the head-mounted display device (103) comprises a photographing apparatus (1031) used for collecting images of a surrounding environment of the head-mounted display device (103) and a display apparatus (1032). The display control method comprises: receiving from a movable platform (101) a first image collected by the movable platform (101) (S301); acquiring a second image collected by the photographing apparatus (1031) in the head-mounted display device (103) (S302); acquiring display instruction information, and determining a target image from among the first image and the second image according to the display instruction information (S303); and controlling the display apparatus (1032) in the head-mounted display device (103) to display the target image (S304). When a user wears the head-mounted display device (103), the user may view the target image by means of the display apparatus (1032). Since the target image is determined from among the first image and the second image, the user may view the surrounding environment in which said used is located, thus avoiding danger and ensuring safety.
Patent WO-2020173235-A1 (WO)
Title: Task switching method and terminal device
Inventor: WU GUANGCHAO
IPC: G06F9/48
Filed: 2020-01-10
Abstract: An embodiment of the present disclosure provides a task switching method and a terminal device. The method comprises: receiving a first input by a user on a first screen; in response to the first input, displaying a first interface on the first screen, wherein the first interface comprises at least one first application identification, each of which is used to indicate an application started by the terminal device; receiving a second input by the user to a target application identification in the at least one first application identification; in response to the second input, switching a screen having display mapping relationship with a target application from a second screen to a third screen, the second screen is different from the third screen; and the target application is the application indicated by the target application identification. The method can be applied to a scenario of recent task management of a multi-screen terminal device.
Patent WO-2020147666-A1 (WO)
Inventor: WANG XIAO
IPC: G06F3/0488
Filed: 2020-01-13
Abstract: 本申请公开了一种用户界面显示方法、装置、终端及存储介质。该方法应用于终端中，终端具有可折叠屏幕，可折叠屏幕包括第一显示区域与第二显示区域，该方法包括：在可折叠屏幕处于展开状态时，全屏显示第一应用程序的用户界面；接收作用在全屏显示的第一应用程序的用户界面上的第一多指滑动信号；根据第一多指滑动信号在第一显示区域显示第一应用程序的用户界面，在第二显示区域显示第二应用程序的用户界面。本申请实施例提供的技术方案，使用户在无需关闭在前台运行的应用程序也能够查看其它应用程序的用户界面，提高终端的使用效率。
Patent WO-2021142628-A1 (WO)
Inventor: ZOU JINHUA
IPC: G02B11/34
Filed: 2020-01-14
Abstract: 一种用于红外光成像的光学成像系统，其沿着光轴由物侧至像侧依序包括具有屈折力的第一透镜（L1）；具有屈折力的第二透镜（L2）；具有正屈折力的第三透镜（L3），第三透镜（L3）的像侧面于圆周处为凸面；具有负屈折力的第四透镜（L4）；具有正屈折力的第五透镜（L5），第五透镜的像侧面（S10）于光轴处为凹面，第五透镜的物侧面（S9）与像侧面（S10）均为非球面，且其物侧面（S9）和像侧面（S10）中至少一个表面包含至少一个反曲点；光学成像系统满足下列关系式：TT/f＜1.5；其中，TT为第一透镜物侧面（S1）至第五透镜像侧面（S10）在光轴上的距离，f为光学成像系统的有效焦距。这种光学成像系统能拍摄得到分辨率较高的图像，同时还具备大光圈以及小型化的特点。还公开了一种取像装置和电子装置。
Patent WO-2020156208-A1 (WO)
Title: 柜式空调室内机
Inventor: ZHANG PEIHU
IPC: F24F1/00
Filed: 2020-01-16
Abstract: 一种柜式空调室内机，该柜式空调室内机包括机壳（110）、送风组件（120）。其中，机壳包括底座（111）和机身，并形成有机壳进风口（1121）和机壳出风口（118）。送风组件（120）设置于机壳（110）内，配置为从机壳进风口（1121）的周围环境吸入环境空气并促使空气向机壳出风口（118）流动。机身包括前面板（113）和位于前面板下方的导流延伸板（115），前面板（113）的底端与导流延伸板（115）的顶端围成机壳出风口（118）。且机身还包括饰条（117），饰条（117）设置为包覆前面板（113）的底端。上述柜式空调室内机通过前面板（113）的下端与导流延伸板（115）的顶端围成机壳出风口（118），不仅可通过导流面位于机壳外侧的导流延伸板（115）在高度方向上增大送风范围，还便于对机壳出风口（118）位置、形状等进一步改进设计。
Patent WO-2020151679-A1 (WO)
Inventor: HAN JING
IPC: H04B7/00
Filed: 2020-01-20
Abstract: 本申请实施例提供一种上行传输方法及设备，该方法包括：终端在测量间隔内进行测量；所述终端确定是否在一段时间内进行上行发送，其中，所述一段时间为从所述测量间隔结束开始的时间段，所述一段时间的时间长度是所述终端根据通信参数确定的。本申请实施例使得上行发送不会影响测量间隔内的测量，且不浪费资源。
Patent WO-2021151229-A1 (WO)
Title: Devices and methods for near-field communication detection
Inventor: Xiong Tianhao
IPC: H04B5/00
Filed: 2020-01-29
Abstract: In one aspect, the NFC device includes an antenna that includes first and second terminals, a first resistor on a first current path, and a second resistor on a second current path. The NFC device includes a first switch that switches between open and closed states, where the first switch couples the first current path to the first terminal in the closed state. The NFC device includes a second switch that switches between open and closed states, where the second switch couples the second current path to the second terminal in the closed state. The NFC device includes a controller in communication with the first and second switches and configured to set a Q factor of the antenna to a first or second value by operating the first and second switches.
Patent WO-2020173297-A1 (WO)
Title: Point cloud segmentation method, computer-readable storage medium and computer device
Inventor: LIU SHU
IPC: G06V10/26
Filed: 2020-02-10
Abstract: Disclosed are a point cloud segmentation method, a computer-readable storage medium and a computer device. The method comprises: encoding a point cloud to be processed to obtain a shared feature (S202), the shared feature referring to a feature shared at a semantic level and an instance level; decoding the shared feature according to different decoding modes to respectively obtain a semantic feature and an instance feature (S204); adapting the semantic feature to an instance feature space and then fusing same with the instance feature to obtain a semantic fused instance feature of the point cloud, the semantic fused instance feature representing an instance feature fused with a semantic feature (S206); dividing the semantic fused instance feature of the point cloud to obtain a semantic fused instance feature of each point in the point cloud (S208); and determining, according to the semantic fused instance feature of each point, an instance category to which each point belongs (210). By means of the method, the efficiency of point cloud segmentation is improved.
Patent WO-2021159360-A1 (WO)
Inventor: ZHANG XIANFU
IPC: G11C29/44
Filed: 2020-02-13
Abstract: 一种存储器故障修复方法及装置，涉及存储器技术领域，用于实现不同粒度或不同故障范围的故障修复，提高了存储器的故障修复功能。所述方法应用于包括控制逻辑和存储器的存储系统中，包括：检测所述存储器中的存储单元，得到至少一个故障(S301)；基于不同存储粒度分析所述至少一个故障，以确定所述存储器的故障范围(S302)；根据预设故障修复策略中所述故障范围对应的故障修复策略修复所述存储器(S303)。
Patent WO-2020181964-A1 (WO)
Inventor: XIAO WENPING
IPC: H04L27/12
Filed: 2020-02-18
Abstract: The present invention discloses a blind area detection method, which is used for determining whether a target exists in a blind area of a vehicle and comprises the following steps: calculating a signal-to-noise ratio according to the spectrum of a frame acquired in a radar; finding the envelope of the spectrum, and calculating the width of the envelope of the spectrum and the ratio of the maximum value of the spectrum amplitude to the corresponding envelope amplitude of the spectrum envelope at the maximum value of the spectrum amplitude; according to the signal-to-noise ratio, the ratio of the maximum value of the spectral amplitude to the corresponding envelope amplitude of the spectrum envelope at the maximum value of the spectrum amplitude, and the width of the spectrum envelope, determining whether there is a single-frame blind area alert; and according to consecutive multi-frame distance information and the single-frame blind area alert situation of each frame, determining whether there is a multi-frame blind area alert. According to the technical solution of the present invention, when a target is located at the blind area position of the vehicle, the interference of invalid targets such as fences and flower beds can be effectively eliminated, and the accuracy of blind area detection is improved.
Patent WO-2020186977-A1 (WO)
Inventor: CHEN JIAJIE
IPC: C08K5/1575
Filed: 2020-02-25
Abstract: Disclosed is a polypropylene composition, comprising the following components in parts by weight: 90-100 parts of copolymerized polypropylene;1-10 parts of branched polyethylene; 0.1-0.5 parts of a nucleating agent. The copolymerized polypropylene has a molecular weight of 25000-30000 and a molecular weight distribution (MWD) of 2.5-3.0. The isotacticity of polypropylene is in the range of 90-95%. aPP accounts for 0.5-1.5% of the total weight of the copolymerized polypropylene, and EP accounts for 0.5-5.0% of the total weight of the copolymerized polypropylene. The polypropylene composition of the present invention uses polypropylene as the main body of the resin matrix. By designing the microstructure of polypropylene segments and selecting branched polyethylene having a specific segment structure, the interfacial energy of polypropylene and polyethylene is effectively reduced, the interface binding force between the two resins is improved, and segment and lattice defects are reduced. By cooperating with an efficient nucleating agent, the advantages of resistance to yellowing and chemicals are achieved.
Patent WO-2021103333-A1 (WO)
Inventor: CHEN KUN
IPC: D06H7/00
Filed: 2020-02-28
Abstract: A felt cutting and feeding apparatus, comprising a stereoscopic caching module (1) of a felt to be cut, a pushing module (2) of the felt to be cut, a felt slitting module (3), and a cut felt transferring module (4). By means of the cooperation of the modules, the present invention achieves the automatic cutting of a felt and facilitates executing subsequent operation steps. The apparatus has the advantages of being automatic and high in production efficiency.
Patent WO-2020187035-A1 (WO)
Title: Clay pot
Inventor: XIA ZHENG
IPC: A47J27/00
Filed: 2020-03-05
Abstract: A clay pot, comprising a pot body (10) and a pot cover (20) fitting the pot body (10), and further comprising a steaming grid (30) detachably connected to the pot body (10), a connection point between a bottom wall and a side wall of an inner part of the pot body (10) being surroundingly provided with a ring-shaped flange (11), the steaming grid (30) being disposed in the pot body (10), an entire rim of the steaming grid (30) abutting the ring-shaped flange (11), and a height range of the ring-shaped flange (11) being 0.5 cm to 5 cm. The clay pot may be used for steaming food and baking food, increasing functionality of a clay pot, and making use more convenient.
Patent WO-2021093230-A1 (WO)
Inventor: AN XIA
IPC: G06F30/39
Filed: 2020-03-12
Abstract: L'invention concerne un procédé de caractérisation d'une fluctuation introduite au moyen d'une irradiation de particules uniques. Au moyen du test et de l'extraction d'une distribution de tension de seuil d'une pluralité de dispositifs de tailles différentes avant et après irradiation de particules uniques, une fluctuation de tension de seuil provoquée par l'irradiation de particules uniques est obtenue ; et ainsi, un modèle de fluctuation de processus est corrigé, et des exigences de marge de conception de circuit pour un travail dans un environnement d'irradiation sont corrigées. Dans la présente invention, un procédé de calcul est simple, et la plage d'application est large. La présente invention peut satisfaire aux exigences d'application de différentes générations techniques et de différents environnements d'irradiation, corriger les exigences de marge de conception de circuit pour un travail dans un environnement d'irradiation, et améliorer la fiabilité de fonctionnement d'un circuit intégré à l'échelle nanométrique dans l'environnement d'irradiation.
Patent WO-2020220884-A1 (WO)
Inventor: ZHAO YIN
IPC: H04N19/117
Filed: 2020-03-27
Abstract: Disclosed is an intra-frame prediction method for a video sequence, the method comprising: acquiring the size and division means of a chroma coding tree node; according to the size and division means of the chroma coding tree node, determining whether a chroma coding unit included in the chroma coding tree node allows cross-component linear model intra-frame prediction (CCLM) to be used; according to whether the chroma coding unit allows the CCLM to be used, determining a prediction mode of the chroma coding unit; and processing the chroma coding unit according to the prediction mode of the chroma coding unit, so as to obtain a predicted pixel of the chroma coding unit. Further disclosed are an intra-frame prediction apparatus and a decoder. The use of the embodiments of the present application facilitates a reduction in the processing delay of the chroma coding unit, thereby increasing the throughput rate of a hardware decoder.
Patent WO-2020207446-A1 (WO)
Title: Blood pressure measurement
Inventor: VULE YAN
IPC: A61B5/021
Filed: 2020-04-09
Abstract: A wearable device (900) includes a processor (805) and a lower module (150). The lower module (150) includes a pressure sensor (1002) for detecting a mechanical movement of a skin that covers an artery. The mechanical movement of the skin is due to blood flow through the artery. The processor (805) is configured to : receive skin movement information from the pressure sensor (1002); calculate a pulse front velocity (PFV), which is a velocity of a blood wave as the blood wave passes under the pressure sensor (1002); estimate a pulse wave velocity (PWV) using the PFV; and estimate the blood pressure using the PWV.
Patent WO-2021189539-A1 (WO)
Inventor: LI ZHAO
IPC: C08J5/18
Filed: 2020-04-09
Abstract: Provided are an OLED packaging structure, an OLED packaging method, and an OLED display apparatus. The OLED packaging structure comprises a substrate panel (11), a self-healing packaging layer (13), and at least two inorganic packaging layers (15). A cavity is formed between two adjacent inorganic packaging layers (15), one self-healing packaging layer (13) is provided in the cavity, and one of the inorganic packaging layers (15) covers an OLED device. Self-healing of a crack at room temperature is achieved by means of the self-healing packaging layers (13), thus preventing water or oxygen from entering the interior of an OLED panel through the crack.