baber/WOPTO huggingface dataset:
Patent KR-20160114681-A (KR)
Title: 측정 오차의 보정 방법 및 전자부품 특성 측정 장치
Inventor: MORI TAICHI
IPC: G01R35/00
Filed: 2015-02-17
Abstract: 측정 지그에 의해 측정값에 차이가 생기는 3개의 요인(전송로의 차이, 직달파의 차이, 비전송로의 차이)을 고려하여 측정 지그 간의 측정값 차를 높은 정밀도로 보정한다.  
고주파 신호의 인가 또는 검출에 관계되는 신호 라인 포트와 신호 라인 포트 이외의 비신호 라인 포트로부터 선택된 2개의 포트 간 모두에서 포트 간을 직접 전달하는 누설 신호의 존재를 상정하여 도출된 상대오차 보정 회로망 모델(38)의 모든 계수에 대해, 예상되는 값을 최우법에 의해 산출한다. 초기값으로 하여, 신호 라인 포트만으로부터 선택된 2개의 포트 간 모두에서 포트 간을 직접 전달하는 누설 신호의 존재를 상정하여 도출된 제1 상대오차 보정 회로망 서브모델의 계수와, 비신호 라인 포트에서 반사하는 신호의 존재를 상정하여 도출된 제2 상대오차 보정 회로망 서브모델의 비신호 라인 포트에 대한 계수를 이용한다.
Patent KR-20160106202-A (KR)
Title: 동영상 예측 부호화 장치, 동영상 예측 부호화 방법, 동영상 예측 부호화 프로그램, 동영상 예측 복호 장치, 동영상 예측 복호 방법 및 동영상 예측 복호 프로그램
Inventor: TAKIUE JUNYA
IPC: H04N19/70
Filed: 2013-05-24
Abstract: 종래법의 NAL 유닛 헤더에서는, nal_ref_flag의 값이 nal_unit_type의 값에 따라, 일의적으로 결정되는 경우에도, nal_ref_flag 및 nal_unit_type의 각각에 비트를 할당하고 있고, 비효율적인 설계로 되어 있다. 동영상 예측 부호화 장치는, 동영상을 구성하는 복수의 화상을 입력하는 입력 수단과, 화상을, 화면 내 예측 또는 화면 간 예측 중 어느 하나의 방법으로 부호화하고, 압축 화상 데이터를 생성하고, 패킷 헤더 정보와 함께 패킷화하는 부호화 수단을 구비하고, 패킷 헤더 정보는, 픽쳐 타입을 포함하고, 부호화 수단은, 픽쳐 타입을, 부호화된 픽쳐 데이터가, 다른 픽쳐를 복호할 때 참조를 위해 사용될 것인지의 여부를 일의적으로 나타내도록 결정한다.
Patent KR-20160123328-A (KR)
Title: 광회선 단말/광 네트워크 유닛 파장 조절 방법 및 장치
Inventor: ZHANG DEZHI
IPC: H04Q11/00
Filed: 2014-07-23
Abstract: 본 발명은 광회선 단말/광 네트워크 유닛 파장 조절 방법 및 장치를 제공하고, 광회선 단말 파장 조절 방법은 소스 광회선 단말(OLT)이 타켓 광회선 단말(OLT)에 광 네트워크 유닛(ONU)이 곧 타켓 OLT의 시분할 파장분할 다중 접속방식 채널(TWDM CH)로 조절됨을 지시하기 위한 조절 통지 메시지를 송신하는 단계와, 소스 OLT가 타켓 OLT가 제공한 ONU의 조절 프로세스를 완성하였음을 지시하기 위한 조절 확인 메시지를 수신하는 단계를 포함한다. 본 발명의 기술방안에 의하면, 소스 OLT의 ONU가 타켓 OLT의 채널로 스위칭한 후에도 여전히 정상적으로 작업할 수 있게 되어 OLT와 ONU 사이의 업무 지속성을 유지하는 효과를 실현할 수 있다.
Patent KR-20160132915-A (KR)
Title: 픽셀 거리를 이용한 디블록 필터링
Inventor: KIM WOO SHIK
IPC: H04N19/182
Filed: 2015-03-12
Abstract: 본 개시물은 디블록 필터링 기법들을 기술한다.     비디오 코더는 픽셀로부터 경계까지의 기하학적인 거리 및 적어도 2개의 픽셀들의 픽셀 값들 사이의 픽셀 값 차이에 기초하여 픽셀의 픽셀 값의 디블록 필터링할 양을 결정할 수도 있다.     비디오 코더는 그후 결정된 양에 기초하여 픽셀을 디블록 필터링할 수도 있다.
Patent KR-20160126083-A (KR)
Title: 패킷 필터 기반 액세스 제어
Inventor: WANG JUN
IPC: H04W4/90
Filed: 2015-03-10
Abstract: 방법, 장치, 및 컴퓨터 프로그램 제품이 제공된다.     장치는, 상이한 타입들의 데이터 서비스들을 위한 개개의 타입들의 액세스 제어들에 대응하는 액세스 파라미터들을 기지국으로부터 수신하고, 패킷 필터를 각각의 타입의 액세스 제어에 대한 액세스 제어 정보에 맵핑하는 것에 기초하여 코어 네트워크에서 확립된 TFT 를 수신하고, 애플리케이션으로부터 데이터 패킷을 수신하고, 데이터 패킷에 대응하는 액세스 제어 정보를 결정하기 위하여 데이터 패킷을 패킷 필터에 정합하고, 결정된 액세스 제어 정보에 대한 액세스 파라미터들에 기초하여 데이터 패킷에 대한 통신을 확립하도록 구성된 UE 일 수도 있다.     대안적으로, 장치는, 애플리케이션 서버로 통신되는 데이터에 관한 트래픽 제어에 대한 요청을 수신하고, 요청에 기초하여 애플리케이션 서버에 대한 정책 업데이트를 결정하고, 정책 업데이트를 UE 로 송신하도록 구성된 정책 서버일 수도 있다.
Patent KR-20160128437-A (KR)
Title: Hiv 역전사효소 억제제로서 4''-치환된 뉴클레오시드-유도체
Inventor: GIRIJAVALLABHAN VINAY M
IPC: C07D487/04
Filed: 2015-03-26
Abstract: 본 발명은 화학식 I의 4'-치환된 뉴클레오시드 유도체 (화학식 I), 및 HIV 역전사효소의 억제, HIV에 의한 감염의 예방, HIV에 의한 감염의 치료, 및 AIDS 및/또는 ARC의 예방, 치료 및 발병 또는 진행 지연에서의 그의 용도에 관한 것이다. 
<화학식 I>
Patent KR-20160149230-A (KR)
Title: Lan 케이블 내의 프로파일된 십자형 필러
Inventor: HEFFNER GREG
IPC: H01B11/06
Filed: 2015-04-08
Abstract: 복수의 트위스트 페어 도전체들(12)을 갖는 LAN 케이블 내에 배치되는 십자형 필러가 제공된다. 필러는 바디(21); 및 복수의 반경방향으로 연장하는 암들(20)을 포함하며, 암들 각각은 암들의 표면을 따라서 복수의 교번하는 지지부들 및 캐비티들을 갖는다. LAN 케이블 내에서 반경방향으로 연장하는 암들 중 적어도 하나는 복수의 트위스트 페어들 중 적어도 2 개의 트위스트 페어들 사이에 배치된다. 십자형 필러가 케이블에 위치되는 때에, 2 개의 트위스트 페어들 사이에 배치되는 반경방향으로 연장하는 암의 어느 하나의 측면에 있어, 복수의 트위스트 페어들 중 적어도 2 개의 트위스트 페어들이, 반경방향으로 연장하는 암의 지지부들 중 적어도 하나의 지지부 위에 놓이도록, 반경방향으로 연장하는 암들 중 적어도 하나의 암의 치수가 정해진다.
Patent KR-20170023830-A (KR)
Inventor: MURRAY IAN GORDON
IPC: B62D27/02
Filed: 2015-06-25
Abstract: WO2009/122178에 설명된 것과 같은 구조체에서는, 복합 패널과 관형 프레임워크 사이에 접착제 접합부를 제공할 필요가 있다.  본 출원인은 상호 연결된 관형 단면 금속성 부재들로 이루어진 프레임워크, 및 각각이 복수의 금속성 부재들에 접착적으로 접합되는 복수의 복합 패널을 포함하는 차량 섀시를 설명하고, 복합 패널과 금속성 부재 사이의 적어도 하나의 접합부는, 복합 패널의 평면부의 에지와 일체이고 그 에지로부터 연장하여 금속성 부재의 외부 주위에 끼워지는 원호 형성부, 및 실질적으로 평면부의 에지로부터 원호부의 전체 각도 범위보다는 작은 그 일부분을 가로질러 연장하는 그들 사이의 간극을 따르는 접착제의 층에 의해 형성된다.  또한, 본 출원인은 관형 단면 금속성 부재들로 이루어진 프레임워크를 조립하는 단계, 복수의 복합 부재를 제공하는 단계로서, 복수의 복합 부재 중 적어도 하나는 평면부, 및 금속성 부재의 외부 프로파일과 실질적으로 일치하는 그 에지의 원호 형성부를 갖는, 복수의 복합 부재를 제공하는 단계, 원호 형성부를 따라 미리 정해진 깊이로 접착제 비드를 도포하여 원호 형성부의 전체 각도 범위보다는 작은 각도 범위를 덮는 단계, 금속성 부재가 원호 형성부 내에 안착되고 그들 사이의 간격이 미리 정해진 깊이보다 작도록, 적어도 하나의 복합 부재와 금속성 부재를 결합시키는 단계를 포함하는 차량 섀시의 형성 방법을 설명한다.
Patent KR-20180085086-A (KR)
Inventor: BEOM WON JIN
IPC: B32B15/20
Filed: 2017-01-16
Abstract: A carrier-foil-attached ultra-thin copper foil according to one embodiment of the present invention comprises a carrier foil, a release layer, a first ultra-thin copper foil, a Cu-Al adhesive force improvement layer, a Cu-diffusion prevention layer, an Al layer, and a second ultra-thin copper foil, wherein the release layer may comprise first metal (A2) having peeling properties, and second metal (B2) and third metal (C2) facilitating the plating of the first metal (A2).
Patent KR-20180085312-A (KR)
Inventor: KIM JIN KUK
IPC: G01N21/954
Filed: 2017-01-18
Abstract: The present invention relates to a floating-type apparatus for monitoring a collecting pipe, wherein a photographing means to photograph an internal wall of a collecting pipe is mounted, and a floating body floating and moving on running water flowing in the collecting pipe is provided. In the floating-type apparatus for monitoring a collecting pipe, the floating body comprises: a body; an upper roller unit having a first roller protruding in an upper direction of the body to be in contact with an internal upper wall of the collecting pipe to rotate; and a side roller unit having a second roller protruding in left and right side directions of the body to be in contact with an internal side wall of the collecting pipe to rotate.
Patent KR-20170094772-A (KR)
Inventor: KIM JIN JOO
IPC: C07D495/22
Filed: 2017-02-13
Abstract: The present application relates to a polycyclic compound of chemical formula 1, and an organic light-emitting device comprising the same. According to one embodiment of the present application, the polycyclic compound may be used in the organic light-emitting device to reduce driving voltage of the organic light-emitting device, improve light efficiency thereof, and improve lifetime characteristics of the device by thermal stability of the compound. Additionally, the present application provides an organic light-emitting device comprising: a first electrode; a second electrode disposed to face the first electrode; and one or more organic material layers, wherein at least one layer of the organic material layers comprises the compound.
Patent KR-20180093736-A (KR)
Title: cage connection device for lift
Inventor: CHOI JONG MUN
IPC: E04G21/14
Filed: 2017-02-14
Abstract: The present invention relates to a cage connection device for lift which connects a cage for carrying construction materials or workers and a driving part so as not to generate an unbalanced load, wherein the driving part is installed on an upper part of the cage, is driven in correspondence with application of power and is provided to be able to move up and down along a hoist way together with the cage. Also, the cage connection device for lift can prevent damage to a reducer and a roller of the driving part due to use for a long time, thereby preventing a lift accident. The cage connection device for lift comprises a connecting housing member (110), a connecting inserting member (130), and a connecting member (150).
Patent KR-20170098711-A (KR)
Title: Valve for a vehicle exhaust line
Inventor: GREBER FREDERIC
IPC: F01N1/16
Filed: 2017-02-21
Abstract: A valve comprises: a valve main body (3); a flap (7); a shaft (9) driving the flap (7); and at least one first guide bearing (29) of a first end portion (11) of the shaft (9). The first end portion (11) of the shaft (9) includes an inner side housing (31) appearing in an axial direction. The first guide bearing (29) includes a barrel (33) coupled to the inner side housing (31) in the axial direction. Accordingly, when the first end portion of the shaft faces downward, no condensate is accumulated in the inner side housing.
Patent KR-20180097351-A (KR)
Title: Monolithic 3d(m3d) integration-based cache memory
Inventor: CHUNG SUNG WOO
IPC: G11C5/04
Filed: 2017-02-23
Abstract: The present invention relates to a monolithic 3D integration technology-based vertical word line cache memory. A plurality of layers are stacked in the monolithic 3D integration technology-based cache memory according to an embodiment of the present invention. The monolithic 3D integration technology-based cache memory according to an embodiment of the present invention includes: a first layer in which a first bit line is formed; a second layer stacked on the first layer and including a second bit line formed therein; and a vertical word line for vertically connecting the first bit line and the second bit line. Accordingly, the present invention can greatly reduce the access time and power consumption of the cache memory.
Patent KR-20170101150-A (KR)
Inventor: GAENSSLE KLENK FRANK
IPC: B23Q5/04
Filed: 2017-02-24
Abstract: The present invention relates to a machine processing unit (7) for a machine tool including a carrier head base (8). The carrier head base (8) is able to be connected to a shaft guide (6) on a rear surface thereof, and includes a carriage which is variable in a longitudinal direction. A spindle carrier head (10) is rotatably maintained in the carrier head base (8), and includes a spindle (11) having a tool holder (12). An objective of the present invention is to provide the machine processing unit (7) capable of improving precision of the machine tool. According to the present invention, a reduction unit (17) is provided in the carrier head base (8). According to an independent aspect of the present invention, the present invention relates to the machine tool including the machine processing unit in accordance with the present invention.
Patent KR-20180099228-A (KR)
Inventor: CHOI JI HOON
IPC: H04N5/33
Filed: 2017-02-28
Abstract: The present invention relates to an intelligent security surveillance camera incorporating an uninterruptible power supply. The intelligent security surveillance camera with the uninterruptible power supply according to the present invention comprises a camera unit including a lens and a plurality of infrared LEDs, an uninterruptible power supply unit for supplying power when a power supply is cut off, a memory for recording a photographed image; an input unit for receiving the setting of the camera unit and the on/off setting of the uninterruptible power supply unit, a controller for driving the camera unit when a motion is detected, charging the uninterruptible power supply unit up to a set charge amount when a power is supplied, and supplying the power to the uninterruptible power supply unit when the power is shut off if the uninterruptible power supply unit is in use; and a housing for protecting the camera unit, the uninterruptible power supply unit, the memory, the input unit, and the control unit, and allowing the input unit to be exposed to the outside by a bottom cover and including a plurality of ventilation holes for air circulation. As such, according to the present invention, there are advantages that since the uninterruptible power supply unit is built in, the intelligent security surveillance camera can be always operated even when the power is turned off, thereby recording images in real time, and can be used in a place where power supply is impossible.
Patent KR-20170033285-A (KR)
Title: Hera-type brush for surface finishing of crack area and finishing method of crack surface using the hera-type brush
Inventor: LEE SEONG WON
IPC: E04F21/06
Filed: 2017-03-06
Abstract: The present invention relates to a scrapper-type brush for finishing a surface of a cracked part capable of being efficiently used for the cracked part generated on a wall surface of a building or a road surface, enabling neat appearance in case of painting an exterior part of the building, and remarkably reducing time required for repairing and a method for finishing the surface of the cracked part using the scrapper-type brush. The method for finishing the surface of the cracked part using the scrapper-type brush includes: a cracked part cleaning step (S100) cleaning the cracked part by injecting water after removing paint coated on the surface of the cracked part including a gap and a curved surface (30) and various kinds of foreign materials with the brush; a liquid mixture coating step (S200) coating one liquid mixture (40) selected between silicon or a putting agent with the scrapper-type brush (S) composed of a brush (100) with an internal coating pad (110) capable of coating the liquid mixture (40) and supported and fixated by a supporter (130) and a handle (120) supported and fixated by the supporter (130) after cleaning the cracked part; and a surface finishing step (S300) of finishing the surface with one selected between a waterproof solution and paint after coating the liquid mixture (40) on the surface.
Patent KR-20180105317-A (KR)
Title: Reserve battery with improvement in efficiency of electrolyte impregnation
Inventor: JEON KYUNG YOUL
IPC: H01M6/36
Filed: 2017-03-15
Abstract: The present invention relates to a reserve battery which forms impregnated holes having a predetermined area on a side surface of a guide body of a cell guide, so that impregnation of an electrolyte can be rapidly performed. Also, the reserve battery is composed to impregnate a cell in a uniform area in the height direction, thereby rapidly using electricity in an emergency by maximizing an activation speed of the cell and minimizing an electrolyte impregnation degradation phenomenon due to an ampoule fragment by adjusting a quantity and a width of the impregnated holes and an interval between the adjacent impregnated holes. The reserve battery comprises the cell guide. The cell guide includes: the guide body; and a mounting part.
Patent KR-20170121048-A (KR)
Inventor: ANDO YUTA
IPC: G06T7/11
Filed: 2017-03-15
Abstract: The objective of the present invention is to easily and surely detect a defect of an object to be detected with a simple configuration. As a means for solving the objective, a defect detection method includes the steps of: obtaining a picked-up image by picking up the object (W) to be detected; and arranging a color component of a pixel of the picked-up image on a 2D scatter diagram where two color components of red, green, and blue become a horizontal axis and a vertical axis. The pixels are divided into the pixel of a defect distribution region and the pixel of a noise distribution region on the 2D scatter diagram. The divided pixel of the defect distribution region is selected. A limited picked-up image is generated by matching the selected pixel with a place where the pixel exits. A defect test is performed by using the limited picked-up image.
Patent KR-20180118870-A (KR)
Inventor: LEE WALL NAM
IPC: A01G9/14
Filed: 2017-04-24
Abstract: The present invention relates to a pad for a vinyl greenhouse which is convenient to use. The present invention comprises: a pad which includes a long plate shape bottom surface coupled and fixed to a frame of a vinyl greenhouse, an inclined surface protruding and extended from both sides of the bottom surface to be inclined to the center, and an inner groove into which vinyl of a vinyl greenhouse is inserted; and a fixing stick which is inserted into the inner groove of the pad and presses and fixes the vinyl inserted into the inner groove to the inside of the pad. When the center of the fixing stick is pressed after the fixing stick is disposed in the inner groove of the pad into which the vinyl of the vinyl house is inserted, the vinyl is entirely pressed and fixed to both ends of the fixing stick by spreading of the fixing stick, and the vinyl is firmly coupled and fixed in a very convenient manner. At the same time, the fixing stick is unfolded by a pressing force and naturally engaged with a coupling means to maintain a firmly unfolded state. Therefore, the present invention has an effect of stably coupling and fixing vinyl for a long time through the fixing stick. In addition, when the center of the fixing stick is forcibly lifted, coupling of the coupling means is released and the unfolded fixing stick is folded and retracted. Thus, collection of the fixing stick from the pad can be very conveniently performed. Accordingly, repairing or replacement of vinyl can be very easily performed. In addition, the pad and the fixing stick are made of resin materials, and thus corrosion due to snow or rain is prevented in advance. Therefore, the lifespan of a product can be significantly extended.
Patent KR-20170057204-A (KR)
Inventor: YOKOTA JUNICHIRO
IPC: H01R43/16
Filed: 2017-05-12
Abstract: Provided is a pressure contact type connector capable of miniaturizing a mounting area and obtaining a large elastic force. The pressure contact type connector (1) comprises: an upper plate portion (1a) extending in a plate shape; a lower plate portion (1b) extending in a plate shape, and disposed below the upper plate portion (1a); a first spring portion (1c) continuously connecting the upper plate portion (1a) and the lower plate portion (1b); and a second spring portion (1d) extending upward from the lower plate portion (1b), and applying an elastic force to the upper plate portion (1a). When viewed from above, the first spring portion (1c) and the second spring portion (1d) are wound around the upper plate portion (1a) as a center, and are extended so as not to interfere with each other in the case of operating in the vertical direction. The first spring portion (1c) is formed by bending, and has a width (W) in the vertical direction larger than a thickness (T) in the horizontal direction. The second spring portion (1d) is formed by bending, and has a width (W) in the vertical direction larger than a thickness (T) in the horizontal direction.
Patent KR-20180126646-A (KR)
Inventor: WHING DUK HYUN
IPC: B01D46/00
Filed: 2017-05-17
Abstract: Sky is covered with dust, smoke, and find dust from thermal power plant waste sites, automobile factories, steel works, and cement factories, and thus view of people is unclear. An object of the present invention is to prevent the dust, smoke, and fine dust at the source. In the thermal power plant, after combustion, the combustion smoke is forcibly discharged and passed through a water filter. The water in tank 1, 2, 3, and 4 are circulated to each other, and 1% of caustic soda and 1% of baking soda are added to neutralize the smoke, thereby performing complete purification.
Patent KR-20170057223-A (KR)
Inventor: PARK PYUNG KOO
IPC: H04M1/253
Filed: 2017-05-18
Abstract: A home cloud gateway device connected to a home network at home and providing services to clients connecting through a network includes an Internet interface unit, a telephone exchange unit, a storage unit for storing a virtual computer module, and an authentication processing unit. A virtualization module stored in the storage unit is activated to provide a virtual computer service. A telephone call through the Internet and a telephone call service through the Internet and a telephone network are provided through the Internet interface unit and the telephone exchange unit.
Patent KR-20180126946-A (KR)
Title: Media selection for providing information corresponding to voice query
Inventor: SHIN MYEONG SOO
IPC: H04L12/28
Filed: 2017-05-19
Abstract: Provided is technology about media selection for providing information corresponding to a voice request. According to an embodiment of this invention, a method of providing information of an electronic device including a voice-based interface includes: a step of managing information about a plurality of media including main media corresponding to the voice-based interface and sub media included in another electronic device which is connected with the electronic device to enable visual output; a step of receiving a voice request from a user through the voice-based interface; a step of obtaining response information corresponding to the voice request; a step of determining at least one medium for outputting the response information among the media based on at least one among the voice request and the response information; and a step of delivering the response information to the determined medium to output the response information through the determined medium.
Patent KR-20180134435-A (KR)
Title: Service providing method and service providing system using the method
Inventor: LEE DONG JIN
IPC: H04W4/02
Filed: 2017-05-22
Abstract: Disclosed are a service providing method capable of providing a sub-service to a customer in addition to a main service and a service providing system for performing the same. The service providing method relates to a method performed by a computer system comprising the steps of: receiving reservation information of a main service for an arbitrary customer; reserving the main service in accordance with the reservation information; and providing the sub-service to a customer′s terminal when the sub-service is determined to be provided to the customer as a result of analysis of the reservation information. Therefore, when the customer makes a reservation for the main service, the sub-service can be provided together with the reservation of the main service.
Patent KR-20180129217-A (KR)
Inventor: KIM SANG HUN
IPC: H01M50/553
Filed: 2017-05-25
Abstract: A secondary battery is disclosed. According to the present invention, when internal pressure of a secondary battery is generated, an operation of the secondary battery can be stopped by interrupting the current, so that the safety of the secondary battery can be improved by preventing fire or explosion of the secondary battery due to an increase in internal pressure of the secondary battery. In order to achieve the objective, a secondary battery according to an aspect of the present invention comprises: an electrode assembly including an electrode tab; an outer case for accommodating the electrode assembly; and an electrode lead electrically connected to the electrode tab, wherein the electrode lead comprises: an external protrusion portion protruding outside the outer case; an inner connection portion positioned inside the outer case; and a notch portion formed in the internal connection portion and having a relatively thin thickness compared to other regions of the electrode lead, the notch portion is formed in a direction intersecting with a direction toward the external protrusion portion in the electrode assembly, the internal connection portion comprises: a tab junction region located at one side of the notch portion and bonded to the electrode tab; and a tab non-junction region located on the other side of the notch portion and integrally connected to the external protrusion portion, wherein the internal connection portion is bent around the notch portion so that the tab junction region and the tab non-junction region face each other.
Patent KR-20180129345-A (KR)
Inventor: KIM JIN RYUN
IPC: F21V8/00
Filed: 2017-05-26
Abstract: The present invention relates to a viewing angle controlling film which includes a region where transmittance is not converted and a region where transmittance is converted, wherein the region where the transmittance is converted includes a transmittance conversion part which converts transmittance in response to light of a predetermined wavelength band and does not react with light of a wavelength band other than the predetermined wavelength band, and a backlight unit using the same and a display device using the same. According to the present invention, since the viewing angle control film has the transmissivity conversion part in which the transmissivity is reversibly converted in response to the light of the predetermined wavelength band, the viewing angle of a display device can be easily adjusted without detaching the viewing angle controlling film from the display panel.