baber/WOPTO huggingface dataset:
Patent KR-20190138869-A (KR)
Title: 환편기 및 환편기의 바늘을 이동시키는 방법
Inventor: LONATI ANDREA
IPC: D04B9/20
Filed: 2018-03-27
Abstract: 본 발명에 따른 환편기는, 복수의 바늘(3)을 수용하는 복수의 종방향 홈(4)을 가진 바늘-고정 실린더(2), 바늘(3)들에 작동 가능하게 연결된 하나 이상의 원사 공급부(110), 중심축(X-X) 주위로 바늘-고정 실린더(2)에 대해 이동 가능하며 바늘-고정 실린더(2) 주위에 배열된 작동 캠(C), 각각의 바늘(3)과 작동 캠(C) 사이에 작동 가능하게 배열된 각각의 바늘(3)을 위한 구동 체인(5)을 포함한다. 구동 체인(5)은, 서브-바늘(6), 각각의 셀렉터 경로들과 결합될 수 있는 각각의 끝부분(37)을 가진 셀렉터(9), 조절 하에서 제어 셀렉터(9)에 작동되는 선택 장치(200), 각각의 펀치 경로들과 결합될 수 있는 각각의 끝부분(25)에 제공된 펀치(7)를 포함한다. 구동 체인(5)은 작동 캠(C)들에 대해 중심축(X-X) 주위로 회전 방향(CW, CCW)들로 회전되며, 펀치-경로는 각각의 원사 공급부(110)를 위해 턱 스티치 상승부(101)와 드롭 스티치 상승부(102)를 포함한다. 드롭 스티치 상승부(102)의 입구가 외주 방향으로 턱 스티치 상승부(101)의 입구 앞에 위치된다. 셀렉터 경로는 각각의 원사 공급부(110)를 위해 차례대로 배열된 제2 상승부(100)와 제1 상승부(129)를 형성하는 단일의 트랙(124)을 포함한다. 제1 상승부(129)는 외주 방향으로 제2 상승부(100) 앞에 위치되며 드롭 스티치 상승부(102)에 작동 가능하게 연결되고, 제2 상승부(100)는 턱 스티치 상승부(101)에 작동 가능하게 연결된다.
Patent KR-20190136102-A (KR)
Title: 다이나모미터 시스템의 제어 장치
Inventor: TAKAHASHI TOSHIMICHI
IPC: G01L3/22
Filed: 2018-05-09
Abstract: 목적은, 다이나모미터 본체에 접속되는 부하의 구성을 바꾸어도 고응답이고 안정적인 제어가 가능한 한편, 높은 정밀도로 계측이 가능한 다이나모미터 시스템의 제어 장치를 제공하는 것. 다이나모미터 시스템의 제어 장치는, 각속도 검출 신호를 바탕으로, 부하가 접속되어 있는 상태에서의 다이나모미터 본체에 발생하는 손실 토크에 상당하는 손실 보상 신호를 생성하는 기계 손실 연산부(48)와, 요동자의 고유 진동이 억제되도록 보정 신호를 생성하는 고유 진동 억제 제어 회로(43)와, 상위 토크 지령 신호에서 보정 신호를 뺌으로써 토크 전류 지령 신호를 생성하는 토크 전류 지령 신호 생성부(49)를 구비한다. 고유 진동 억제 제어 회로(43)는, 규범 모델 연산부(432)와, 편차 보상기(433)와, 모델 입력 생성부(434)와, 규범 모델 연산부(432)에서 얻어지는 토크 신호에 미분 연산을 실시함으로써 보정 신호를 생성하는 미분 보상기(437)를 구비한다.
Patent KR-20200007844-A (KR)
Title: 전력 변환 장치
Inventor: ABE KEITA
IPC: H02M1/14
Filed: 2017-06-15
Abstract: 전력 변환 장치의 소형화를 달성하는 것.  케이스(30)와, 파워 모듈(4)과, 평활 콘덴서(5)와, 강전 접속부(8)를 구비한다.  파워 모듈(4)은, 케이스(30)에 수용된다.  평활 콘덴서(5)는, 케이스(30)에 콘덴서 고정 볼트(54)로 고정되며, 전압 변동을 억제한다.  강전 접속부(8)는, 파워 모듈(4)과 평활 콘덴서(5)가 전기적으로 접속된다.  콘덴서 고정 볼트(54)에 의해 평활 콘덴서(5)를 케이스(30)에 고정하는 위치를 콘덴서 고정점(9C)이라 할 때, 콘덴서 고정점(9C)은 평활 콘덴서(5)의 코너부(5a)를 피한 위치에 배치된다.  파워 모듈(4)과 평활 콘덴서(5)를 강전 접속부(8)에 있어서 접근시킨다.
Patent KR-20190138706-A (KR)
Inventor: CHEN JUIKUN
IPC: H04N21/442
Filed: 2016-05-26
Abstract: 개시되는 시스템 및 방법은 소비되고 있는 콘텐츠의 프레임들의 정렬된 시퀀스를 포함하는 쿼리 핑거프린트를, 미디어 디바이스로부터, 수신하고, 프레임들의 정렬된 시퀀스의 각각의 프레임 핑거프린트들과 이에 대응하는 것들 사이의 거리를 결정하는 것에 의해 쿼리 핑거프린트를 프레임 핑거프린트들과 매칭시킨다.  이러한 매칭은, 2진 트리 구조의 리프 노드들에 걸쳐 시간순으로, 각각의 거리들로 2진 트리 구조를 채우는 것, 및 다음으로 루트 노드의 값을 주목하는 것에 의해 수행될 수 있다.  최대 임계값 아래이면, 매칭이 존재한다.  이러한 시스템 및 방법은, 2진 트리 구조의 서브-트리를 횡단하는 것, 및 서브-트리의 제1 또는 제2 노드들에 로우 값(또는 제로)을 위치시키는 것에 의해 미디어 디바이스에서의 채널 변경을 검출할 수 있다.  이러한 채널 변경은 미디어를 미디어 디바이스로 스트리밍되고 있는 콘텐츠에 대상화하는데 유용할 수 있다.
Patent KR-20200020695-A (KR)
Title: 코팅된 절삭 공구
Inventor: LINDAHL ERIK
IPC: C23C28/00
Filed: 2018-06-19
Abstract: 본 발명은 코팅된 절삭 공구에 관한 것으로, 상기 코팅은 κ-Al 2 O 3  의 서브층들 및 TiN, TiC, TiCN, TiCO 또는 TiCNO 서브층들이 교대하는 것으로 이루어지는 다층을 포함하고, 상기 다층은 적어도 3 개의 κ-Al 2 O 3  의 서브층들을 포함한다.     상기 다층은 15°~ 140°의 θ-2θ 스캔에 걸친 XRD 회절을 추가로 나타내고, 0 0 2 회절 피크 (피크 면적) 는 상기 다층의 κ-Al 2 O 3  서브층들로부터 기원하는 가장 강한 피크이다.
Patent KR-20200021463-A (KR)
Title: 관형 가열 요소를 갖는 전자 베이핑 장치
Inventor: DENDY CHARLES L
IPC: A24F40/10
Filed: 2018-06-29
Abstract: 전자 베이핑 장치(10)의 카트리지(15)는 기화전 제제를 저장하도록 구성되어 있는 저장조(95) 및 기화전 제제를 가열하도록 구성되어 있는 가열 요소(85)를 포함하고 있다. 가열 요소(85)는 제1 말단(300) 및 제2 말단(305)을 갖는 금속 관(315)를 포함하고 있다. 금속 관(315)은 이를 관통하는 개구부(320)를 정의하고 있다. 금속 관(315)은 금속 관(315)의 일부분을 따라 실질적으로 연속적으로 연장되어 있는 적어도 하나의 나선형 채널(310)을 정의하고 있는 측벽면(325)을 포함하고 있다.
Patent KR-20200016257-A (KR)
Title: 적층체 및 에어백
Inventor: YAMADA YOSUKE
IPC: B32B27/12
Filed: 2018-06-15
Abstract: 본 발명은 기포(基布)와 열가소성 필름을 포함하는 적층체로서, 상기 열가소성 필름이, 열가소성 폴리에스테르계 엘라스토머를 포함하는 접착층과, 당해 접착층에 접합되며 당해 접착층의 융점보다 높은 융점을 가지며 폴리머를 포함하는 기밀층을 갖는 다층 필름이며, 상기 기포가 폴리에스테르를 포함하며, 당해 기포의 무게가 190g/m 2  이하이다.
Patent KR-20200033226-A (KR)
Title: 블리스터 포장기, 블리스터팩의 제조방법 및 블리스터팩
Inventor: KIKUKAWA Tomomi
IPC: B65B47/04
Filed: 2018-02-05
Abstract: 챔버 등을 구비한 블리스터팩을 효율좋고 또한 고속으로 제조하는 것 등을 가능으로 한다.  블리스터 포장기(20)는, 내측포켓부(3a)를 구비한 내측용기(3)와, 외측포켓부(2a)를 구비한 외측용기(2)와, 양 포켓부(2a, 3a)의 각 개구를 막는 커버(4)를 구비하고, 양 포켓부(2a, 3a)간에 챔버가 형성된 블리스터팩(1)을 제조한다.  블리스터 포장기(2)가 갖는 씰장치(29)는, 외측용기용 필름(12)의 외측플랜지부 대응부와, 내측용기용 필름(13)의 내측플랜지부 대응부와, 커버용 필름(14)의 겹치는 부분을 가열하여 이들을 용착한다.  블리스터팩(1)은, 외측포켓부(2a)로부터 돌출 형성된 외측플랜지부에 대하여, 내측포켓부(3a)로부터 돌출 형성된 내측플랜지부와 커버(4)가 용착한 상태가 된다.
Patent KR-20210087769-A (KR)
Title: Pharmaceutical composition containing arctigenin for treating acid tolerant prostate cancer
Inventor: LEE YOON JIN
IPC: A61K31/4745
Filed: 2020-01-03
Abstract: The present invention relates to a pharmaceutical composition for treating acid-resistant cancer comprising arctigenin (ATG) or a pharmaceutically acceptable salt thereof. In the case of the pharmaceutical composition comprising arctigenin or a pharmaceutically acceptable salt thereof of the present invention, a therapeutic effect on acid-resistant cancer can be improved.
Patent KR-20210091376-A (KR)
Title: Powder adsorption mask pack and its manufacturing method
Inventor: JO JUN SIK
IPC: A61K8/02
Filed: 2020-01-11
Abstract: The present invention relates to a powder adsorption mask pack and a method for manufacturing the same. The method for manufacturing a powder adsorption mask pack according to the present invention includes a stirring step, a conveying step, a spraying step, a pressing step, an impregnating step, and a packaging step. The present invention exhibits a skin care effect by the mask pack.
Patent KR-20200115064-A (KR)
Title: Alcohol dehydration catalyst, preparation method the same and method for preparing alpha-olefins using the same
Inventor: KOO KEE YOUNG
IPC: B01J21/10
Filed: 2020-01-23
Abstract: The present invention relates to a catalyst for dehydration of a primary alcohol, a method for preparing the same, and a method for preparing alpha-olefins using the same. The catalyst for dehydration of a primary alcohol according to the present invention has excellent dehydration activity, high conversion frequency, and excellent catalyst stability, and thus can provide high-purity linear alpha-olefins with high selectivity even if a relatively small amount of cocatalyst is added compared to a homogeneous catalyst system. The catalyst for dehydration of a primary alcohol includes complex metal oxides of magnesium and aluminum.
Patent KR-20210103061-A (KR)
Title: Pork ribs and its manufacturing method
Inventor: BAEK WOON SEOK
IPC: A23L13/40
Filed: 2020-02-13
Abstract: Provide are: pork ribs in which the odor of pork is removed, and which have a tender meat quality, are low in calories, and are beneficial to health; and a manufacturing method thereof. To this end, the manufacturing method of pork ribs according to the present invention comprises: a first step (S10) of removing ribs from pork; a second step (S20) of removing blood from the pork ribs; a third step (S30) of freezing the pork ribs; a fourth step (S40) of slicing the pork ribs and shaping the same in a circular mold; a fifth step (S50) of making cuts on the pork ribs; and a sixth step (S60) of aging the pork ribs.
Patent KR-20210110042-A (KR)
Title: Aparatus and method for polymerase chain reaction
Inventor: SHIN HANG BEUM
IPC: B01L7/00
Filed: 2020-02-28
Abstract: In an embodiment according to one aspect of the present invention, provided is a polymerase chain reaction (PCR) apparatus for amplifying nucleic acids, which comprises: a substrate; a metal portion configured by laminating a plurality of metal thin films on a first surface of the substrate; and a light source for illuminating a second surface side of the substrate, in which a fluid sample containing nucleic acids is provided on an upper part of the metal portion; an uppermost metal thin film among the plurality of metal thin films includes a blocking layer for blocking elements that interfere with the amplification of the nucleic acids; a metal thin film located at a lower part of the blocking layer includes an absorption layer to absorb light illuminated through the light source. In an embodiment according to another aspect of the present invention, provided is a method of performing a PCR using a PCR apparatus for amplifying nucleic acids, the method comprising the steps of: providing a fluid sample containing nucleic acids to an upper part of the metal portion; illuminating a second surface side of the substrate with the light source; raising a temperature of the metal portion by the light absorbed into the absorption layer; and heating the fluid sample by increasing a temperature of the metal portion.
Patent KR-20210113520-A (KR)
Title: Bridge Inspection Drone System
Inventor: MA SEUNG YOON
IPC: G06Q50/10
Filed: 2020-03-06
Abstract: The present invention relates to a bridge inspection drone system comprising: a drone unit for imaging terrains and facilities under a bridge and transmitting imaged image data in real time; a bridge information construction unit for creating a layer and constructing a model by using the image data which is on the terrains and facilities under the bridge and has been transmitted from the drone unit; and a bridge information update unit for updating data information on the facilities under the bridge in conjunction with the bridge information construction unit. The bridge inspection drone system of the present invention can transmit, in real time, image data obtained by imaging terrains and facilities under a bridge to accurately identify terrain and facility investigation under the bridge, and can reflect the slope of the data to create a more accurate map and topographical model. In addition, there is a technical effect in which damage can be determined by identifying changes in bridge facilities.
Patent KR-20210115711-A (KR)
Title: Automatic classification of deposits by customers and their control methods
Inventor: LEE SANG HUN
IPC: G06Q20/28
Filed: 2020-03-16
Abstract: The present invention relates to a charging system and a method for controlling the same. According to the present invention, the PIN or business registration number of a depositing member customer is checked for automatic deposit classification, and the member customer is automatically charged with the classified deposit. The present invention includes: an Internet-connected member customer terminal (102) sending depositing information (PIN or business registration number and deposit for product purchase) to a bank terminal; an Internet-connected bank terminal (104) receiving the depositing information from the member customer terminal (102), storing the information, and sending the received information to a deposit management terminal of a product purchasing agency; and an Internet-connected deposit management terminal (106) receiving the depositing information from the bank terminal (104), storing the information, checking the PIN or business registration number from the received depositing information, automatically classifying the deposit, and automatically charging the matching PIN or business registration number with the classified deposit.
Patent KR-20210065818-A (KR)
Title: Method for Providing Service of Deep Learning Private Cloud Service System
Inventor: HEO DAE YOUNG
IPC: G06F9/50
Filed: 2020-03-26
Abstract: The embodiments of the invention disclose a service provision method of a deep learning private cloud service system, which include the steps of: requesting, by a deep learning integration server, task assignment to a layer switching device by a task request transmitted through a user's terminal; performing, by the layer switching device, a task assignment by a task scheduler to find an idle device group and assigns it to a computing node agents, and converts various types of physical device layers into abstraction layers by the assigned compute node agents; and providing, by a deep learning integration server, information about an active operating container switched in the layer switching device to the user's terminal. Therefore, it is possible to configure an independent development and execution environment without being disturbed from other users by allocating limited resources mutually and exclusively.
Patent KR-20210126428-A (KR)
Title: Pharmaceutical Composition for Prophylaxis or Treating Nontuberculous Mycobacterium Infectious Disease
Inventor: JO EUN KYEONG
IPC: A61P31/04
Filed: 2020-04-10
Abstract: The present invention relates to a pharmaceutical composition for preventing or treating a disease caused by non-tuberculous mycobacterium infection, including Mycobacterium abscessus, and more particularly, to a pharmaceutical composition for preventing or treating a disease caused by non-tuberculous mycobacterium infection which contains gemfibrozil as an active component.
Patent KR-20210129509-A (KR)
Inventor: JUNG MYUNG JO
IPC: C23C18/16
Filed: 2020-04-20
Abstract: The present application relates to a hybrid structure comprising a metal thin film layer coated on the surface of a conductive polymer structure, and a method for preparing the same. According to the present invention, the method for preparing a hybrid structure comprises: (a) forming a conductive polymer structure; (b) performing primary reduction of a metal precursor by stirring a solution containing the conductive polymer structure, the metal precursor, a first reducing agent, and a dispersion solvent; and (c) obtaining a hybrid structure including a metal thin film layer coated on the surface of the conductive polymer structure by coating the metal on the surface of the conductive polymer structure by secondary reduction of the primarily reduced metal precursor using a second reducing agent.
Patent KR-20210131108-A (KR)
Title: Composition For Improving Bowel Movement Comprising Mimela splendens Larva or Extract Thereof
IPC: A23L33/105
Filed: 2020-04-23
Abstract: The present application relates to a composition for improving bowel movement functions or weight loss comprising Mimela splendens larvae or an extract thereof. The composition comprising Mimela splendens larvae or the extract thereof according to the present application has an excellent effect of improving bowel movement functions by improving intestinal motility, thereby being able to be usefully used for preventing, alleviating or treating constipation.
Patent KR-20210135891-A (KR)
Title: Method of processing for rice
IPC: A23L27/12
Filed: 2020-05-06
Abstract: A method for processing rice is provided. The method comprises a step of heat-treating by mixing rice and additives, and a step of adding edible oil to the heat-treated rice by mixing the additives, and reheating the same. According to the present invention, by adding edible oil to heat-treated rice by adding the additives, and reheating the same to product rice, there is an effect of producing rice that can be washed and cooked while having a different taste, aroma, and color compared to normal rice.
Patent KR-20210138905-A (KR)
Title: Static mixer with easy to manufacture and install elements
IPC: B01F5/06
Filed: 2020-05-13
Abstract: The present invention relates to a static mixer, wherein an element having a helical mixer structure is included in a pipe-shaped mixing tube. More specifically, the present invention relates to a static mixer including an element easy to be produced and installed, which comprises: a pipe-shaped mixing tube of which connection parts are formed on both ends such that a plurality of static mixers can be connected and installed thereon; and a plurality of elements provided in the mixing tube to be attached and positioned in the same direction as the mixing tube, and each including a twisted surface, horizontal end surfaces forming both ends of the twisted surface, and a connection groove provided in the central surface of the end surface. The static mixer including an element easy to be produced and installed according to the present invention is characterized in that an end surface of the element installed inside the mixing tube is not twisted at the same angle as the twisted surface, but is horizontal and vertical with the mixing tube such that the division of a fluid is made closed to 1/2, in that the twisted surface and the end surface are smoothly connected to each other to reduce friction, thereby achieving smooth fluid flow, in that the end surface is vertical and horizontal to the twisted surface such that a connection groove can be provided at the center thereof, in that connection grooves are fastened to each other so as to be easily coupled with another element, and in that elements having various diameters can be easily and individually produced according to an inner diameter of the mixing tube.
Patent KR-20210144074-A (KR)
Title: Transmitter circuit
IPC: G11C7/22
Filed: 2020-05-21
Abstract: Provided is a transmission circuit, which includes: an emphasis circuit configured to generate a first pull-up driving signal in response to sub data and delayed positive data, and to generate a first pull-down driving signal in response to positive data and delayed sub data; a phase skew compensation circuit compensating for a phase skew between the first pull-up driving signal and the first pull-down driving signal to generate a second pull-up driving signal and a second pull-down driving signal; a pull-up driver for performing pulling-up driving of an output node in response to the second pull-up driving signal; and a pull-down driver for performing pulling-down driving of the output node in response to the second pull-down driving signal.
Patent KR-20210145044-A (KR)
Inventor: KWON HYUK
IPC: F17C13/02
Filed: 2020-05-22
Abstract: In accordance with the present invention, a fuel supply system for a vessel includes: at least one fuel storage tank (10) storing ammonia fuel (1); a fuel supply tank (20) connected to the at least one fuel storage tank (10) and supplying the ammonia fuel (1) to an ammonia engine (E) of the vessel (S); a gas-liquid separator (30) separating surplus ammonia fuel (2) collected from the ammonia engine (E) into liquid ammonia (LA) and gas ammonia (GA); and a first heat exchanger (51) exchanging heat between the surplus ammonia fuel (2) and the gas ammonia (GA) separated by the gas-liquid separator (30). The temperature of the surplus ammonia fuel (2) is dropped as the surplus ammonia fuel passes through the first heat exchanger (51). Therefore, the present invention is capable of efficiently using ammonia fuel.
Patent KR-20210150020-A (KR)
Inventor: CHOI HYOUNG KYOU
IPC: G01G5/00
Filed: 2020-06-03
Abstract: The present invention provides a landing net with a weight measurement function to measure the weight of vibrating live fish when picking up and transporting the live fish or fish caught in fishing. The landing net with a weight measurement function comprises: a net unit comprising a frame and a net; a handle unit comprising a handle connected to the frame; and a weight measuring unit mounted on the handle unit and measuring the weight of the live fish stored in the net unit.
Patent KR-20210151409-A (KR)
Inventor: SHU SANG WON
IPC: D06F39/14
Filed: 2020-06-05
Abstract: In accordance with an embodiment of the present invention, a door lock device includes: a case having an internal space; an opening/closing part placed in the internal space to open and close a door as a hook connected with the door is moved thereinto and backward; a driving part inducing an opening/closing operation of the opening/closing part through a linear motion; and a connection part connecting the opening/closing part with the driving part. The opening/closing part includes: a locker combined with or separated from the hook through a rotating motion when the hook is moved thereinto and backward; a locker support member hinged with the case, combined with the locker to support the rotation of the locker, and rotated in a direction, in which the hook is moved thereinto or backward, when the locker is rotated; and an elastic member located between the locker support member and a lower side of the case to press the locker support member in one direction. The driving part includes a solenoid generating linear thrust through an inputted electric signal, and a plunger performing a linear motion through the thrust generated by the solenoid. The connection part includes: a first link connected with the plunger through a first linker; a second link having one end connected with the first link; a rotary flange connected with the other end of the second link through a second linker to be rotated by the linear thrust applied by the plunger; and a flat cam connected with one side of the rotary flange to press one side of the locker support member. Therefore, the present invention is capable of bringing about an advantage of securing a space by embodying a compact size.
Patent KR-20210151415-A (KR)
Inventor: JANG KYUNG CHAN
IPC: F21S8/08
Filed: 2020-06-05
Abstract: According to an embodiment of the present invention, a system and method for detecting a road accident using a pole-type streetlamp structure may comprise: a module-type battery provided in the pole-type streetlamp structure to supply power; a pair of cameras provided in the pole-type streetlamp structure to film a road; a compound sensor connected to the cameras and collecting and learning image data filmed by the cameras to detect an accident; and a controller connected to the compound sensor to control the compound sensor.
Patent KR-20210152071-A (KR)
Title: Massage devices for the face and body
Inventor: CHOI YONG HAK
IPC: A61H39/04
Filed: 2020-06-05
Abstract: The present invention relates to a massage device for the whole body, which comprises: a body part which is made of a metal alloy that is beneficial to the human body and processed in a concave oval shape; a head part which is formed in a significantly reduced size on one side in a long axial direction of the body part; and a tail part which is formed on the other side in the long axial direction and formed to have a curved shape like a caudal fin. Accordingly, a user can select a suitable part of the massage device for each body part and rub the skin and fascia using the selected suitable part. That is, the massage device comprises: a body part which is disposed at the center thereof, and is formed in an oval shape so that when a metal plate, which is processed into a brassware made of brass, is concavely processed, a convex surface always exists behind a concave surface thereof; a circular head part which is provided on one side in a long axial direction of the oval-shaped body part by means of a connection part with a width that is significantly reduced; and a tail part which is provided in the form of a caudal fin that is formed on the other side in the long axial direction of the body part, is bent downward with an edge of the concave surface as an apex, and has an end split in a set pattern. Accordingly, skin care can be efficiently performed, and the health of muscles can be efficiently restored.
Patent KR-20210151443-A (KR)
Inventor: HO YOUNG KIM
IPC: B65H75/44
Filed: 2020-06-05
Abstract: The present invention relates to a display device. The display device according to one embodiment of the present invention comprises: a housing; a roller disposed in the housing; a display panel wound on or unwound from the roller; a base extended in a longitudinal direction of the roller and installed on the housing to allow the roller to rotate; a link mount supported by the base; a link connected to the link mount to be able to pivot, thereby lifting and lowering the display panel; a location sensing module detecting a location of the display panel by sensing at least one target to be sensed moving along with vertical movement of the display panel; an angle sensing module detecting an angle formed by the link against the base; and a control unit, wherein the control unit controls movement of the link based on the angle detected by the angle sensing module while the target to be sensed is not sensed by the location sensing module and can set standards for detection of the angle when the target to be sensed is sensed by the location sensing module. Other embodiments can be possible. According to the present invention, various sensors are used to minimize an error in movement of the link which winds on or unwinds from the display panel on the roller.