baber/WOPTO huggingface dataset:
Patent WO-2021042573-A1 (WO)
Inventor: WANG FANG
IPC: H01L51/56
Filed: 2019-11-18
Abstract: Provided are a flexible light-emitting panel (100), a manufacturing method for the flexible light-emitting panel (100), and a display apparatus (1000), the flexible light-emitting panel (100) includes: a substrate (10), a flexible layer (20), a light-emitting device (30), a polarizer (40) and a cover plate which are sequentially stacked from bottom to top; the substrate (10) is a substrate (10) made of metal material. The substrate (10) made of metal material is used as the base of the flexible light-emitting panel (100), the overall hardness of the flexible light-emitting panel (100) can be improved while ensuring the bending characteristics of the flexible light-emitting panel (100).
Patent WO-2020134749-A1 (WO)
Inventor: LI WEI
IPC: H01M4/62
Filed: 2019-11-21
Abstract: 本申请涉及一种电极极片、电化学装置、电池模块、电池包及设备。所述电极极片包括集流体和设置于所述集流体至少一个表面上的电极活性材料层。其中，所述集流体包括支撑层和设置于支撑层至少一个表面上的导电层，所述导电层的单面厚度D2满足：30nm≤D2≤3μm。本申请的电极极片具有良好的可加工性，包含该电极极片的电化学装置具有高的能量密度和良好的电性能以及长期可靠性。
Patent WO-2020125334-A1 (WO)
Inventor: YANG YABIN
IPC: H04N21/478
Filed: 2019-11-25
Abstract: The present application belongs to the technical field of music playback, and disclosed thereby are a music playing method, device, terminal and storage medium. The method comprises: playing first music by means of a music player, and playing a video in a music playing page, the first music corresponding to at least two videos; receiving a video switching operation in the music playing page, the video switching operation comprising at least one of a sliding operation, a clicking operation, a long pressing operation and a pressing operation; switching the video playing in the music playing page according to the video switching operation, and continuing to play the first music by means of the music player. The music player in the embodiments of the present application adds a new playing mode, in which the user can watch a video directly on the music playing page while listening to the music, and can switch the currently playing video. In the whole process, no additional video application program is needed, which improves the efficiency of the user watching the video and enriches the playing modes of the music player.
Patent WO-2021036055-A1 (WO)
Inventor: JIANG PEI
IPC: H04W40/04
Filed: 2019-11-27
Abstract: The present invention belongs to the field of wireless communications, and particularly relates to a routing method applied to unmanned aerial vehicle swarm communication. According to the method in the present invention, a routing idea based on a multi-level routing protocol is used, and mature planar routing is fused in multi-level routing, so that routing is easily understood and applied. A node weight is calculated by weighting node energy, node connectivity, relative mobility and a relative distance, and the node with the maximum weight is selected as a cluster head node. An auxiliary cluster head node is provided, and is enabled only when the number of adjacent nodes of the cluster head node is greater than a certain number. The robustness of a communication system is improved, and in addition, the updating of a cluster head of a cluster is also reduced by means of the auxiliary cluster head node, so that overheads are avoided. The present invention has a good communication performance, and is applicable to an unmanned aerial vehicle swarm and other large scenarios with rapid topological changes.
Patent WO-2020147448-A1 (WO)
Inventor: HU TIANMIN
IPC: G06F16/16
Filed: 2019-12-04
Abstract: 本申请适用于数据处理技术领域，提供了基于数据更新的图片清理方法、装置、终端设备以及计算机可读存储介质，包括：计算终端设备的填充时长；若填充时长小于预设的时长阈值，则获取所有相册图片，并将满足预设条件的相册图片归入清理组，对清理组内的至少两个相册图片进行排序；按照第一预设数量对排序后的至少两个相册图片进行选取，将选取出的相册图片确定为目标图片，并将除目标图片外的图片确定为待处理图片；计算待处理图片与所有目标图片之间的综合相似度，对小于预设的相似度阈值的综合相似度所对应的待处理图片进行清理。本申请通过分析用户浏览图片的习惯，并对不符合浏览习惯的图片进行清理，提升了图片清理的针对性。
Patent WO-2020135015-A1 (WO)
Inventor: LIANG DONG
IPC: G16H30/20
Filed: 2019-12-10
Abstract: 一种医学成像模型的建立方法、装置、设备及存储介质。该方法包括：获取医学图像的K空间欠采样数据作为训练样本(101)；将训练样本输入至预先构建的原始神经网络进行训练，并根据模型损失函数优化原始神经网络(102)；当模型损失函数收敛时，停止训练机器学习模型，将训练完成的原始神经网络作为目标医学成像模型(103)；其中，原始神经网络包括频率域网络和图像域网络；模型损失函数包括主损失函数以及至少一个附加损失函数，附加损失函数包括k空间损失函数和/或图像域损失函数。
Patent WO-2021114312-A1 (WO)
Inventor: YANG HUI
IPC: B01L3/00
Filed: 2019-12-14
Abstract: A fluid drive device comprises N layers of interconnected fluid channels (10), wherein N is an integer greater than or equal to 2, and any layer of the fluid channels (10) comprises a fluid sample introduction module (11) and a functional module (20) connected with the fluid sampe introduction module (11), the fluid can enter the functional module (20) through the fluid sampling module (11), the functional module (20) can control the flow direction of the fluid, and/or achieve mixing of different types of fluids and/or accurate measurement of the fluid and/or self-driving of the fluid.
Patent WO-2021109222-A1 (WO)
Inventor: HUO YINGDONG
IPC: G02F1/13357
Filed: 2019-12-16
Abstract: 一种光转换结构（100）和显示装置（200），光转换结构（100）包括基底层（11）、中间层（12）和光转换层（13），基底层（11）具有第一折射率（n1）；中间层（12）具有第二折射率（n2）；光转换层（13）具有第三折射率（n3），光转换层（13）包括第一光转换单元（131）、第二光转换单元（132）和第三光转换单元（133），第一光转换单元（131）、第二光转换单元（132）和第三光转换单元（133）发出的光颜色不同；第二折射率（n2）分别大于第一折射率（n1）和第三折射率（n3）。
Patent WO-2021120051-A1 (WO)
Title: 一种天线
Inventor: LV HONGHUI
IPC: H01Q13/10
Filed: 2019-12-18
Abstract: 本发明提供了一种天线，包括天线辐射单元、接地单元及馈电单元；所述天线辐射单元上开设两条直线槽及若干曲线槽，所述两条直线槽相互垂直且均贯穿所述天线辐射单元，所述两条直线槽将所述天线辐射单元分割成四个子天线辐射单元，所述若干曲线槽均在所述天线辐射单元的周部等间距分布，所述若干曲线槽均用于分割所述四个子天线辐射单元产生的电流线。本发明的有益效果在于：通过在所述天线辐射单元上开设两条直线槽及若干曲线槽，从而增加了谐振路径，拓展了天线带宽；又能保证天线辐射单元上电流沿着正交方向流动，提高端口间隔离度。
Patent WO-2021114361-A1 (WO)
Title: 数据处理方法、装置、终端设备和服务器
Inventor: DIAO XINGHUA
IPC: G06F21/60
Filed: 2019-12-19
Abstract: 一种数据处理方法、装置、终端设备和服务器，所述方法包括：获取针对所述终端设备的登录信息，对所述登录信息进行加密，获得第一加密数据（S101）；将所述第一加密数据传输至服务器，以指示所述服务器对所述登录信息进行验证（S102）；若接收到所述服务器返回的验证通过信息，则采集当前位置的定位数据，并对所述定位数据进行加密，获得第二加密数据（S103）；将所述第二加密数据传输至所述服务器，以指示所述服务器根据所述定位数据对所述终端设备进行定位（S104）。上述方法通过对登录信息及定位数据进行加密处理，有效地解决了由于数据被截取或盗用带来的威胁用户安全的问题。
Patent WO-2021098021-A1 (WO)
Inventor: LIN HAOSHENG
IPC: G05B19/418
Filed: 2019-12-31
Abstract: An data anomaly statistical alarm method and device, and an electronic device, which effectively relieve the problem of alarm missing, thereby effectively avoiding the loss of enterprises due to alarm missing, the method comprises: obtaining a detection time and a detection result of each piece of data obtained by respectively detecting the plurality of pieces of data, counting the number of target data in the current time window, and generating an alarm signal for prompting when the number of target data obtained by statistics is greater than a preset quantity threshold value corresponding to the quality grade of the data, moving the current time window backwards according to the stepping duration included in the obtained stepping duration setting rule corresponding to the quality grade of the data, and taking the current time window after backward movement as a new current time window.
Patent WO-2020199714-A1 (WO)
Inventor: ZHENG SHILEI
IPC: H04B7/06
Filed: 2020-01-09
Abstract: The present application relates to the technical field of wireless communications, and disclosed in the present application are a method and device for reporting channel state information (CSI), for use in solving the problem in the prior art that for PC5 interface unicast communication, there is no corresponding CSI feedback reporting method. The method of the present application comprises: a first terminal receives sidelink control information (SCI) sent by a second terminal, wherein the SCI comprises an indication message for indicating a feedback channel state of the first terminal; and the first terminal sends the CSI together with service data needing to be sent to the second terminal or sends the CSI to the second terminal. Because the present application provides the method for reporting the CSI to a PC5 interface, the system performance and the resource utilization are improved.
Patent WO-2020248605-A1 (WO)
Title: Procédé et appareil de stockage de produit alimentaire, et réfrigérateur
Inventor: GAO JINBAO
IPC: G06Q30/06
Filed: 2020-01-15
Abstract: La présente invention concerne un procédé et un appareil de stockage de produit alimentaire, ainsi qu'un réfrigérateur. Le procédé de stockage de produit alimentaire consiste à : déterminer la quantité de stockage actuelle d'un produit alimentaire défini dans un réfrigérateur ; dans le cas où la quantité de stockage actuelle est inférieure à une quantité de stockage définie, acquérir des informations de vente, à partir d'au moins un commerçant, du produit alimentaire défini, et informer un utilisateur de réfrigérateur de celui-ci ; et dans le cas de la réception d'une instruction d'achat, envoyer des informations de commande à un premier commerçant correspondant à l'instruction d'achat, et acquérir le produit alimentaire défini à partir du premier commerçant en vue du stockage, l'instruction d'achat étant déterminée par l'utilisateur du réfrigérateur selon les informations de vente, et les informations de commande comprenant des informations de la position du réfrigérateur, et des informations de paiement de produit alimentaire dans un mode de paiement prédéfini.
Patent WO-2020147803-A1 (WO)
Inventor: SHI DONGFANG
IPC: C07D471/04
Filed: 2020-01-17
Abstract: Disclosed in the present invention is a synthesis method for 3-bromo-5-(2-ethylimidazo[1,2-α]pyridine-3-carbonyl)-2-hydroxybenzonitrile, relating in particular to a synthesis method for a compound represented by formula (III), which specifically involves step A or step B; step A comprises: a compound represented by formula (I) and a compound represented by formula (II) first reacting by means of heating in an organic solvent, and a resulting reaction product and a base are further being heated in the presence of water to continue reacting so as to obtain a compound represented by formula (III); Step B comprises: the compound represented by formula (I), the compound represented by formula (II) and a base first reacting by means of heating in an organic solvent, and a resulting reaction product then being heated in the presence of water to continue reacting so as to obtain the compound represented by formula (III).
Patent WO-2021142747-A1 (WO)
Title: Dual deck three-dimensional nand memory and method for forming the same
Inventor: LU FENG
IPC: H01L27/11597
Filed: 2020-01-17
Abstract: A method for forming a three-dimensional (3D) memory device is disclosed. In some embodiments, the method includes forming an alternating dielectric stack on a substrate, and forming a plurality of channel holes penetrating the alternating dielectric stack vertically to expose at least a portion of the substrate. A first mask can be formed to cover the channel holes in a first area and expose the channel holes in a second area. The method also includes forming a recess in the alternating dielectric stack in the second area, followed by forming a second mask in the recess. The second mask covers the channel holes in the second area and exposes the channel holes in the first area. The memory film at bottom of each channel hole in the first area can therefore be removed, while the memory film in the second area can be protected by the second mask.
Patent WO-2021142881-A1 (WO)
Title: Display backplane, display device, and splicing display device
Inventor: WANG YING-CHI
IPC: G09F9/33
Filed: 2020-02-20
Abstract: Provided are a display backplane (6), a display device, and a splicing display device; the display backplane (6) comprises a backplane (1), a plurality of miniature light-emitting diodes (111) arranged on the backplane (1) and arranged in a matrix, a plug-in circuit board (2), and a plurality of signal lines (3). A plurality of signal wires (3) are electrically connected to the plug-in circuit board (2). The backplane (1) comprises a front side and a back side opposite to the front side. Provided are a plurality of miniature light-emitting diodes (111) located in a light-emitting area (11) on the front side, a first wiring area (12) and a second wiring area (13) located on opposite sides of the light-emitting area (11), and a third wiring area (14) located on one side of the light-emitting area (11) and between opposite sides. The plurality of signal lines (3) comprises a first signal line (31) and a second signal line (32); the first signal line (31) is wired from the first wiring area (12) and the second wiring area (13) and is electrically connected to the plug-in circuit board (2) by means of the third wiring area (14); the second signal line (32) is wired from the first wiring area (12) and the second wiring area (13) along the back to the third wiring area (14), and is wired from the third wiring area (14) and electrically connected to the plug-in circuit board (2).
Patent WO-2020177743-A1 (WO)
Inventor: SONG QI
IPC: G06F16/9535
Filed: 2020-03-05
Abstract: A method and system for intelligent guided shopping. The system includes a computing device. The computing device has a processor and a storage device storing computer executable code. The computer executable code, when executed at the processor, is configured to provide inference models based on user search data. Each of the inference models includes nodes and edges between the nodes. Each of the edges pointing from a first node to a second node is characterized with a probability value. The probability value represents a probability of searching a second keyword corresponding to the second node after searching a first keyword corresponding to the first node.
Patent WO-2021184372-A1 (WO)
Inventor: YANG HUIJUAN
IPC: H01L51/52
Filed: 2020-03-20
Abstract: 本公开关于一种显示面板及显示装置，涉及显示技术领域。该显示面板包括驱动背板(1)、第一电极层(2)、像素定义层(3)、发光层(4)和第二电极层(5)，驱动背板具有显示区(100)和外围区(200)，外围区具有外围驱动电路和信号线(130)；第一电极层包括位于显示区的第一电极(21)和位于外围区的第一导电层(22)，第一导电层与外围驱动电路在驱动背板所在平面上的正投影至少部分重叠，且信号线与第一导电层连接；像素定义层包括位于显示区的像素定义区(31)和位于外围区的多个绝缘条(32)；至少相邻两绝缘条之间形成有露出第一导电层的分隔槽(321)；第二电极层包括第二电极(51)和第二导电层(52)，第二导电层覆盖绝缘条且在对应于分隔槽的区域形成凹陷区(521)并与第一导电层连接；封装层(6)覆盖第二电极层且填充凹陷区。
Patent WO-2020200036-A1 (WO)
Title: Method for radio communication, terminal device, and network device
Inventor: XUE LIXIA
IPC: H04W52/02
Filed: 2020-03-26
Abstract: Provided in the present application are a method for radio communication, a terminal device, and a network device. The method for radio communication comprises: a terminal device selects, on the basis of a first parameter, either value set of a first value set and a second value set of slot offsets configured by a network device, where the slot offsets in the first value set are greater than 0, at least one slot offset of the second value set is equal to 0, and the slot offsets are used for indicating the number of slots by which a physical downlink shared channel (PDSCH) scheduled by downlink resource information (DCI) is offset relative to the DCI; and the terminal device receives DCI transmitted by the network device, slot offsets carried by the DCI belonging to the selected value set. The technical solution provided in the present application allows the terminal device to correspond to different value sets of slot offsets when working using different parameters, thus corresponding to different data channel scheduling mechanisms.
Patent WO-2021189403-A1 (WO)
Title: 对焦点的确定方法、装置、镜头、成像装置和可移动平台
Inventor: HAN SHOUQIAN
IPC: H04N5/232
Filed: 2020-03-27
Abstract: 本申请实施例提供了一种对焦点的确定方法、装置、镜头、成像装置和可移动平台。其中，方法包括：获取用于标识成像对象的对焦位置偏移量的补偿参数；确定投影比例系数，所述投影比例系数用于标识第一变焦操作前的对焦镜头所在的对焦位置相对于无穷远端和最近端的位置信息；利用所述补偿参数对所述投影比例系数进行更新，获得目标比例系数，所述目标比例系数用于确定所述第一变焦操作后的对焦镜头所在的目标对焦位置，以基于所述目标对焦位置输出清晰图像。本实施例提供的技术方案，可以在变焦过程中准确地确定目标对焦位置。
Patent WO-2021212385-A1 (WO)
Inventor: GUO ZILIANG
IPC: H04L12/24
Filed: 2020-04-22
Abstract: Disclosed in embodiments of the present application are a data testing method and device, a server, and a data processing system. The method comprises: acquiring multiple node information corresponding to data to be tested, the node information being uploaded by a data processing node that has processed the data to be tested; performing an exclusive OR calculation on the basis of data identifiers comprised in the multiple node information to obtain a test value; and if the test value is a specified value, determining that the processing flow of the data to be tested meets a specified flow. According to the method, in the test process of the data processing flow, the exclusive OR calculation is directly performed on the data identifiers comprised in the multiple node information, so that whether the data to be tested has undergone a specified flow can be directly determined according to the test value obtained by the exclusive OR calculation, thereby reducing the complexity of data test.
Patent WO-2020216279-A1 (WO)
Title: Media stream transmitting method and apparatus, and device
Inventor: QIAO NAIQIANG
IPC: H04N21/2187
Filed: 2020-04-23
Abstract: Disclosed are a media stream transmitting method and apparatus, and a device. According to the method, a live media stream is provided for a client that enters a live room. The method comprises: a proxy server receives a first live room request message for requesting to enter a live room from a first client; determine the role of the first client according to the first live room request message; and if the role of the first client is a slave user, transmit a first live media stream cached on the proxy server to the first client, the first live media stream being a media stream transmitted by a media server to a second client by means of the proxy server, and the role of the second client being a master user. According to the present method, a media server only needs to transmit one live media stream to a proxy server, and then the proxy server can duplicate the live media stream and distribute same to all clients serving as slave users of a live room, so that the data volume of transmitting the media stream is reduced, the egress bandwidth is effectively reduced, and the resource overhead is saved.
Patent WO-2021217432-A1 (WO)
Inventor: CHEN BO
IPC: H04W72/12
Filed: 2020-04-28
Abstract: Wireless communications systems and methods related to transmitting communication signals with a carrier aggregated (CA) system TDD bands of a primary carrier component (PCC) and a secondary carrier component (SCC) PUSCH-less cell are provided. In particular, a CA frame structure with a PCC primary frame and an SCC secondary frame where a sounding reference signal (SRS) transmitted on the SCC secondary frame corresponds to a download slot on the PCC primary frame to avoid throughput loss.
Patent WO-2020228829-A1 (WO)
Inventor: HE PENG
IPC: H01M4/38
Filed: 2020-05-15
Abstract: 一种核壳型复合负极材料、其制备方法及应用，所述复合负极材料包括：第一活性物质和第二活性物质形成的内核、以及作为第三活性物质的碳包覆层外壳，所述第一活性物质为片状硅基材料，所述第二活性物质为片状石墨材料，所述第三活性物质为碳包覆外壳。所述复合材料用于锂离子电池负极，具有容量＞400mAh/g的高比容量和优异的循环寿命。
Patent WO-2020238684-A1 (WO)
Title: 通信方法、装置、设备及计算机可读存储介质
Inventor: REN XIAOTAO
IPC: H04W4/40
Filed: 2020-05-18
Abstract: 本公开公开了一种通信方法、装置、设备及计算机可读存储介质。该方法包括：在与第二设备的Sidelink通信配置有至少两个SL-BWP的情况下，使用默认的第一SL-BWP与所述第二设备进行Sidelink通信，或者使用信令配置的第二SL-BWP与所述第二设备进行Sidelink通信。
Patent WO-2021248317-A1 (WO)
Inventor: XU CHANGLONG
IPC: H04W52/00
Filed: 2020-06-09
Abstract: Wireless communications systems and methods related to wireless communications are provided. A first wireless communication device may communicate with a second wireless communication device, a first power mode configuration including a first transmit power parameter and a first communication signal based on the first power mode configuration. The first wireless communication device may communicate with a second wireless communication device, a second power mode configuration including a second transmit power parameter different from the first transmit power parameter and a second communication signal based on the second power mode configuration.
Patent WO-2020259373-A1 (WO)
Title: 一种自锁式拉杆及拉杆箱
Inventor: ZENG BING
IPC: A45C13/26
Filed: 2020-06-17
Abstract: 本发明涉及一种自锁式拉杆及拉杆箱。一种自锁式拉杆，包括外管、套设于所述外管内的内管以及转动安装在所述内管底端的止收扣，所述外管的侧面设有若干与所述止收扣位置相对应的外管止收扣锁孔，当所述止收扣位于外管止收扣锁孔处时，通过拉杆不同角度的变化或抽拉内管的速度变化，使所述止收扣利用自身重力转动并卡扣于所述外管止收扣锁孔中，或从所述外管止收扣锁孔中释放。通过止收扣与外管和内管的配合完成拉杆的自锁，不需要传统拉杆的按钮、弹簧、滑块、压杆、压脚等繁多的零部件，结构简单，减轻拉杆重量，减少制造成本及简化生产工艺，增强拉杆的外观整体设计感，便于用户使用。
Patent WO-2021253320-A1 (WO)
Inventor: Lin Tianya
IPC: H04W72/04
Filed: 2020-06-18
Abstract: Selon certains aspects, la présente invention concerne des techniques pour atténuer une configuration d'agrégation de porteuses incorrecte. Un procédé qui peut être exécuté par un équipement utilisateur (UE) comprend la réception d'une configuration qui indique un nombre seuil de défaillances de liaison radio (RLF) ; la détermination d'un premier nombre de RLF dues à une combinaison d'agrégation de porteuses (CA), le premier nombre étant égal ou supérieur au nombre seuil de RLF ; et la transmission d'un premier message à une première cellule, en réponse à la détermination.
Patent WO-2021135113-A1 (WO)
Title: Dustproof structure, microphone packaging structure, and electronic device
Inventor: LIN YUJING
IPC: H04R19/00
Filed: 2020-06-30
Abstract: Disclosed are a dustproof structure, a microphone packaging structure, and an electronic device. The dustproof structure comprises a carrier and a grid part; the carrier is of a hollow structure; the grid part is arranged at one end of the carrier and covers the hollow structure; the grid part comprises a filter screen, a stress buffer area arranged around the filter screen, and a fixing part arranged around the stress buffer area, the filter screen is opposite to the hollow structure, the fixing part is connected to the carrier, and the filter screen and the stress buffer area are arranged in a suspended manner. One technical effect of the present invention is that the filter screen on the grid part can be kept in a flat state, so that the grid part can effectively block external particles and foreign matters from entering the microphone packaging structure.
Patent WO-2021051966-A1 (WO)
Title: Information pushing method and system
Inventor: LI GANG
IPC: H04L29/06
Filed: 2020-07-07
Abstract: The present disclosure relates to the field of communications, and particularly relates to an information pushing method and system, used for reducing the amount of data and the degree of concurrency that need to be maintained. The method comprises: receiving an information pushing request transmitted by a service end; then obtaining the online state information of a live broadcast room on the basis of identification information carried in the information pushing request, and according to the online state information, determining a signaling server set; and pushing information content to each signaling server in the signaling server set, and by means of each signaling server, pushing the information content to each client connected to the live broadcast room. Therefore, the information pushing system may transmit the information content to each client that establishes a connection with the live broadcast room, and may directly complete the interaction of information according to the online state information of the live broadcast room, thereby improving the stability of the system and reducing the operation and maintenance costs of the system, and further ensuring the smooth transmission of the information content, improving the quality of service of the system, and improving the degree of user experience during information transmission.
Patent WO-2020239143-A1 (WO)
Inventor: CHEN GUOHUA
IPC: C09D11/107
Filed: 2020-07-23
Abstract: Disclosed are a graphene conductive ink and a preparation method therefor. The graphene conductive ink consists of a self-stabilized and dispersed graphene nanomaterial, a mixed solvent of alcohol and water, and an ink binder at the mass ratio of 2-4:50-100:1-2, wherein the self-stabilized and dispersed graphene nanomaterial is prepared from sodium p-aminobenzenesulfonate, natural flake graphite, and the mixed solvent of alcohol and water by means of a liquid phase exfoliation method; sodium p-aminobenzenesulfonate actions on the surface of graphene by means of π-π conjugation, physical adsorption, and chemical grafting. The graphene conductive ink of the present invention is stable in dispersion, high in conductivity, excellent in printability, excellent in flexibility and the like, and is expected to be used for printing various flexible electronic devices.