baber/WOPTO huggingface dataset:
Patent KR-20120138532-A (KR)
Inventor: PARK YU BE
IPC: H01L27/146
Filed: 2011-06-15
Abstract: 본 발명은 반도체 기판의 일부를 식각하여 형성된 절연층의 상부에 포토 다이오드층을 형성함으로써, 포토 다이오드층간의 전기적인 연결을 차단시켜 각 픽셀간의 신호 간섭을 근원적으로 차단시킬 수 있는 CMOS 이미지 센서와 그 제조 방법에 관한 것이다. 
이를 위하여 본 발명의 실시 예에 따른 CMOS 이미지 센서 제조 방법은 기판의 일부를 식각하여 픽셀간을 격리시키기 위한 절연층을 형성하는 단계와, 절연층의 상부에 도전형 물질을 증착하여 포토 다이오드층을 형성하는 단계와, 포토 다이오드층의 양측에 각기 다른 불순물 이온을 주입하여 제 1, 2 도전형 불순물 이온층을 형성하는 단계와, 제 1, 2 도전형 불순물 이온층에 각각 연결되는 제 1, 2 콘택을 형성한 후 제 1 콘택에 연결되는 리셋 전극용 금속 배선과 제 2 콘택을 통해 제 1 도전형 불순물 이온층과 센싱 게이트에 연결시키는 연결용 금속 배선을 형성하는 단계를 포함한다.
Patent KR-20120139367-A (KR)
Title: Heat-blowing type hair roll heating device
Inventor: HUR SUHP
IPC: A45D4/04
Filed: 2011-06-17
Abstract: PURPOSE: A hot air hair roll heater is provided to prevent excessive temperature increase of the hair roll by selecting a hot air convection method. CONSTITUTION: A hot air hair roll heater comprises a main body(100) which includes one or more fixing tools(110) and a hot air generator which is installed at the low part of the fixing tool and flow heat to the fixing tool. The hair roll fixed to the fixing tool is heated through the heat generated from the hot air generator. At one side of the upper surface of the main body, an operation button(102) which turns on and off the hot air generator. The hot air generator heats the hair roll by flowing heat to inside the hair roll fixed to the fixing tool. The duct is formed for the width to be gradually reduced from the lower to the upper part.
Patent KR-20130002451-A (KR)
Title: Multistage type orifice
Inventor: AHN BYOUNG JOON
IPC: F16K17/00
Filed: 2011-06-29
Abstract: PURPOSE: A multistage orifice is provided to improve maintenance work ability by facilitating the pressure control and the maintenance work. CONSTITUTION: A multistage orifice(1) comprises a decompression unit(10), a connection unit(20), a flange unit(30). The decompression unit is equipped with a decompression hole(18) inside where the decompression of the fluid occurs and the holes are consecutively installed in multistage. The connection unit is fixed outside and the connection unit connects the decompression unit to be unibody, A flange unit is installed at the both ends of the decompression unit connected to the connection unit and the flange unit connects the multistage orifice to the pipeline where the fluid flows.
Patent KR-20130003147-A (KR)
Title: Method of forming cathode for thin film battery and thin film battery manufactured by the method
Inventor: KIM JUNG HEE
IPC: H01M4/04
Filed: 2011-06-30
Abstract: PURPOSE: A manufacturing method of a positive electrode for a thin film battery is provided to remarkably reduce time for crystallization of a positive electrode active material by crystallizing a positive electrode active material by irradiating light with the wavelength of 580-950 nm. CONSTITUTION: A manufacturing method of a positive electrode for a thin film battery comprises: a step of depositing a positive electrode current collector(120) on a substrate(110); and a step of depositing a positive electrode active material(130) on the positive electrode current collector by using a deposition mask. In the positive electrode active material deposition step, the deposition and the crystallization of the positive electrode active material are simultaneously conducted by irradiating the light with a wavelength of 580-950 nm. The thin film battery comprises the positive electrode current collector formed on the substrate, and the crystallized positive electrode active material which is formed on the positive electrode current collector.
Patent KR-20130005472-A (KR)
Title: The tube instrument with gas exhaust capability
Inventor: JUNG JEAN MAN
IPC: B65D35/44
Filed: 2011-07-06
Abstract: PURPOSE: A tube having a gas discharge function is provided to smoothly discharge gas which is generated by the chemical transformation of content inside a main body. CONSTITUTION: One side the main body(10) is sealed by heat seal and a different side has a spout(13) in which an outlet is penetrated. A lead seal(15) of sheet material seals the outlet of the spout. A tube cap(20) is assembled to embrace the spout of the main body. A gas permeation hole(15h) is formed on the lead seal leaving intervals. The gas permeation hole has the size of 0.05 to 0.15mm. A chamber groove(23) has a lattice shape filled by the gas which passes through the gas permeation hole. A discharge inducing groove(17) is vertically formed on the external side of the spout and is connected to the chamber groove. An exhaust hole(25) is formed on the bottom edge part of the tube cap and is connected to the discharge inducing groove. An external tube cap part(21) is connected to the peripheral part(11) of the spout. The external tube cap part forms the exhaust hole on the bottom. An internal tube cap part(22) is screw-assembled with the external face of the spout. The internal tube cap part forms the chamber groove on the contact face connecting to the lead seal which is on the upper face of the internal side. The valve sheet is contracted by an elastomer. The elastomer is one among rubber material, plastic material, silicone material, urethane material, sponge material, foaming material and coil spring which have shock-absorption.
Patent KR-20130005918-A (KR)
Title: Gel type electrolyte for dye-sensitized solarcell
Inventor: KIM JAE SANG
IPC: C08L33/04
Filed: 2011-07-08
Abstract: PURPOSE: A gel-type electrolyte for a dye-sensitized solar battery is provided to improve long-term stability, thermal resistance and thermal stability while removing moisture in an electrolyte by adding a highly absorbent polymer such as sodium polyacrylate into a gel-type electrolyte. CONSTITUTION: A gel-type electrolyte for a dye-sensitized solar battery comprises: a liquid electrolyte which comprises an organic solvent, an oxidation-reduction derivative, and an additive; and a highly absorbent polymer which comprises a polymer of a sodium acrylate or copolymer. The organic solvent is selected from acetonitrile, ethylene carbonate, propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl carbonate, tetrahydrofuran, 3-methoxypropionitrile, and gamma-butyrolactone. [Reference numerals] (AA) Solar light
Patent KR-20130007724-A (KR)
Title: 수세식 좌변기의 결빙방지구조
Inventor: GIM GYEONG JUNG
IPC: F16K17/38
Filed: 2011-07-11
Abstract: 본 발명은 겨울철 난방시설이 불완전하여 화장실의 온도가 영하로 떨어진 상태에서도 결빙을 방지하고, 또한 전기를 이용하지 않고 결빙을 방지하며, 그리고 이를 통해 동절기에도 전기를 절약하면서 좌변기를 용이하게 사용 및 관리할 수 있도록 한 수세식 좌변기의 결빙방지구조에 관한 것이다. 
본 발명은 변기통(11)의 상부에 설치되어 물을 저장하는 저수탱크(12), 배수레버(13)와 연결되어 배수구(14)를 개폐하는 배수마개(15), 급수관(16)에 연결되어 저수량을 조절하는 플로트(17)와 플로트밸브(18), 배수구(14)와 연결되는 오버플로관(19)으로 구성된 좌변기(10)에 있어서, 상기 오버플로관(19)의 하부에 일체로 형성되어 양측 절개부(21)를 구비하는 유수조절관(20); 상기 유수조절관(20)에 수량조절이 가능하도록 나사결합되어 절개부(21)를 개폐시키는 유수조절캡(30)을 포함하여 구성된다.
Patent KR-20130011085-A (KR)
Title: Manufacturing method of metallic hollow fiber preventing bending
Inventor: CHI SUNG DAE
IPC: B01D69/02
Filed: 2011-07-20
Abstract: PURPOSE: A method of manufacturing porous metal hollow fiber filter and ballast management for vessels including the same are provided to reduce producing defective goods by releasing metal hollow fiber precursor through a metal hollow fiber nozzle and coating the surface of the precursor with polymer. CONSTITUTION: A method of manufacturing porous metal hollow fiber filter comprises; a step to manufacture a metal precursor solution by dissolving more than one metal powder from transition metals, oxide of the transition metals and alloys and polymer binder in a solution, a step to polymer coated metal hollow fiber precursor by releasing the metal precursor solution and the polymer solution for coating through a metal hollow fiber nozzle(300) with three layers, and injecting the polymer solution into the end hole of the metal hollow fiber nozzle for coating the whole metal hollow precursor with the polymer solution, a step to manufacture a porous metal hollow fiber precursor by heating the coated metal hollow fiber precursor and oxidizing the same and the coated polymer and a step to sintering the metal hollow fiber precursor.
Patent KR-20130013065-A (KR)
Title: Semiconductor integrated circuit having capacitor for providing stable power and method of manufacturing the same
Inventor: KIM JONG SU
IPC: H01L21/8242
Filed: 2011-07-27
Abstract: PURPOSE: A semiconductor integrated circuit device and a manufacturing method thereof including a mass storage capacitor for stably supplying power are provided to form a mass storage capacitor and a MOS capacitor without an additional process. CONSTITUTION: A mass storage capacitor(100) includes a dummy cell capacitor group(110) and a MOS capacitor(120). The dummy cell capacitor group includes multiple dummy capacitors(C1,C2,Cn) which are connected in parallel between a dummy plate electrode(P) and a dummy storage node contact part(SNC). The dummy plate electrode and the dummy storage node contact part are positioned in a peripheral circuit region. The gate(G) of a MOS capacitor is electrically connected to the dummy storage node contact part. The active area(A) of the MOS capacitor is electrically connected to the dummy plate electrode.
Patent KR-20130013641-A (KR)
Title: Concentric assembly apparatus and method for linear vibration motor
Inventor: CHOI WOO SOO
IPC: H02K15/00
Filed: 2011-07-28
Abstract: PURPOSE: A concentric assembly device and a method of a linear vibration motor are provided to assemble an armature in one or more weight assemblies, thereby improving workability and productivity of an assembling process. CONSTITUTION: A weight assembly(10) and an armature(20) are settled in a circular groove of a tray jig(110). The armature is composed of a magnet(21) and a plate yoke(22). A pickup device(120) transfers the armature to an upper side of the weight assembly. A work guide(130) is arranged on the upper side of the tray jig. The work guide includes a guide bush(131).
Patent KR-20130021662-A (KR)
Inventor: LEE JAE SUN
IPC: A43B3/00
Filed: 2011-08-23
Abstract: 본 발명은 작업용 안전화를 구성하는 갑피부분 즉, 외피와 내피의 사이 부분에 단열소재에 의한 단열층을 형성하여 외부의 온도 변화와는 무관하게 항시 안전화를 착용할 수 있어 작업의 능률화에 기여할 수 있는 단열구조가 형성된 작업용 안전화에 관한 것으로, 본 발명은 작업용 안전화(10)를 구성하는 갑피부분의 외피(20)와 내피(30) 사이에 공간부를 형성하여 상기 공간부에 단열소재(40)를 접착제(50)(50')로 고정시킨 단열층을 일체로 형성하여 된 것이다.
Patent KR-20120020064-A (KR)
Title: Traveling vehicle and method for controlling traveling vehicle
Inventor: HARADA KEIZO
IPC: G05D3/00
Filed: 2011-08-24
Abstract: PURPOSE: A traveling vehicle and a control method thereof are provided to effectively perform a process such as returning a cargo when an obstacle is located on a route. CONSTITUTION: An obstacle sensor(110) senses an obstacle on a route. A controller(120) provides a first avoidance motion to a driving vehicle. A memory part(130) memorizes obstacle location information and avoidance width information. The avoidance width information includes a left and right avoidance width of the driving vehicle.
Patent KR-20130022777-A (KR)
Title: Improved spectral efficiency in multi-carrier ds/cdma communications method for marine communication
Inventor: PARK MIN SU
IPC: H04B1/7115
Filed: 2011-08-26
Abstract: PURPOSE: A frequency efficiency improving method in MC DS-CDMA(Multi-Carrier Direct Sequence Code Division Multiple Access) is provided to maintain target transmission quality by adaptively controlling transmission rates in a time domain. CONSTITUTION: Transmission power is allocated to a sub-channel including a maximum channel gain in MC DS-CDMA communication. Transmission rates are adaptively controlled in a time domain for maintaining transmission quality. A reception power gain is multiplied by the correlator output of an m channel in a coupling step of a reception signal. A beta value is used for a reception power gain value. A combiner of the user generates the amount of determination statistic.
Patent KR-20130023643-A (KR)
Title: Fabricating apparatus for an organic light emitting display panel and fabricating method of the organic light emitting display panel using the same
Inventor: LEE BYUNG CHUL
IPC: H01L51/56
Filed: 2011-08-29
Abstract: PURPOSE: An apparatus and method for manufacturing an organic light emitting display panel are provided to improve yield by preventing organic materials from being attached to a donor film due to air inputted between the donor film and a substrate. CONSTITUTION: A first gate block(410) faces a second gate block(420). A plurality of first pad units are formed on a surface of the first gate block to face the second gate block. A plurality of second pad units are formed on a surface of the second gate block to face the first gate block. A first vacuum inhalation hole(412) is extended to the first pad unit via the first gate block. A second vacuum inhalation hole(422) is extended to the second pad unit via the second gate block.
Patent KR-20130025079-A (KR)
Title: 옷받침체와 걸이체
Inventor: LEE MOON HEE
IPC: A47G25/28
Filed: 2011-09-01
Abstract: 본 고안은 옷을 걸어두기 위한 옷받침체와 걸이체에 관한 것으로, 본 고안에 따른 옷걸이는 걸이체와 옷받침체 사이에는 각각 한 쌍의 표식이 있으며 옷받침체에는 손잡이가 있고 손잡이연결부가 옷받침부와 손잡이부를 연결하여 주는 구조이다. 표식부가 있는 걸이체는 원형이나 사각봉 구조에는 복수의 옷받침체 걸이를 구비하고  걸이판 구조에는 양면에 복수의 바지걸이부와 옷받침체걸이부를 구성하고 광고물을 인쇄 할 수 있는 공간을 구비하였다.
Patent KR-20130028345-A (KR)
Inventor: KANG SUK JU
IPC: H04N13/00
Filed: 2011-09-09
Abstract: PURPOSE: A jagging detection method and a three-dimensional image display device using the same are provided to detect a jagging area from a generated pixel map by detecting a predetermined black tone area from brightness and chrominance information extracted from inputted image data. CONSTITUTION: A brightness and chrominance information extraction unit extracts brightness and chrominance information from three-dimensional data inputted in a three-dimensional mode(S101,S103). A brightness and chrominance information analysis unit generates a pixel map by detecting a predetermined black tone area from the extracted brightness and chrominance information(S104). A jagging detection unit detects a jagging area by shifting a PxQ mask to the generated pixel map(S105). A jagging improvement unit improves the detected jagging area. [Reference numerals] (AA) Detecting a jagging area by shifting a PxQ mask to a pixel map by a pixel; (BB) Improving the jagging of the detected jagging area; (S101) 3D mode?; (S102) Directly outputting input 2D image data; (S103) Extracting the brightness and chrominance information of input 3D image data; (S104) Generating a pixel map by detecting a predetermined black tone area from the brightness and chrominance information
Patent KR-20110106265-A (KR)
Inventor: YOON YOUNG RO
IPC: G06Q50/22
Filed: 2011-09-14
Abstract: 본 발명은 개인측정기기를 이용하여 측정한 생체정보를 표준파일로 변환하여 원격 관리하는 재택 건강 관리 시스템 및 그 방법에 관한 것이다. 본 발명은, 환자 개인의 생체정보를 측정하는 개인측정기기; 상기 개인측정기기를 통하여 측정된 생체정보를 수집하여 표준파일로 변환하고 네트워크를 이용하여 전송하는 개인단말기; 상기 네트워크를 통하여 상기 개인단말기로부터 상기 표준파일을 전송받고 해당 환자의 생체정보를 분석하여 현재상황을 판단하며, 판단된 현재상황에 따라 각각 미리 설정된 프로그램을 실행하여 각 서버에 해당 조치명령을 실행하는 중앙서버; 응급상황발생시 상기 중앙서버로부터 응급상황알람 및 환자 정보를 전송받는 응급센터서버; 평상시에는 상기 중앙서버로부터 건강지침을 전달받아 환자 치료에 활용하고, 응급상황발생시 상기 중앙서버로부터 응급상황알람 및 환자 정보를 전송받는 병원서버; 상기 생체정보의 분석에 따라 건상상태를 모니터링하고, 해당 개인 단말기에 건강주의사항을 전달하거나 보고서를 작성 통보하는 재택센터서버; 및 응급상황발생시 상기 중앙서버로부터 응급상황알람 및 병원정보를 전송받는 보호자단말기를 포함하는 것을 특징으로 한다. 따라서, 시스템마다 서로 취급하는 데이터의 종류를 표준화하여 호환성을 갖고, 재택 건강관리 시스템을 위한 용도로 사용되기에 필요한 정보 필드로만 구성하여 시스템의 효율성을 향상시키며, 실시간 모니터링을 가능하게 하여 응급 상황시 신속히 대처할 수 있다.
Patent KR-20120044234-A (KR)
Title: Adhesive for polarizing plate, polarizing plate comprising the same and method for preparing thereof
Inventor: CHO SAE HAN
IPC: C09J7/22
Filed: 2011-09-20
Abstract: PURPOSE: An adhesive composition for polarizing plate is provided to have excellent adhesion to various substrates, water resistance and optical properties, and to improve hardening degree. CONSTITUTION: An adhesive composition comprises one or more kinds of acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationically photopolymerization initiator, and additionally comprises 5-50 parts by weight of urethane acrylate based on 100.0 parts by weight of the whole adhesive composition. A polarizer(1) comprises a polymer film(2a) attached to one side or both sides of the polarizer, and an adhesive layer(3) for attaching the polarizer and the polymer film. The adhesive layer consists of the adhesive composition.
Patent KR-20130032655-A (KR)
Inventor: KWON HYOUK KYUN
IPC: H04N7/025
Filed: 2011-09-23
Abstract: PURPOSE: A sign language broadcasting device using search and a method thereof are provided to help a hearing-impaired person watch broadcasts by producing a sign language broadcast by calling a sign language image through subtitles data or audio data of a digital video. CONSTITUTION: A word analyzing unit(240) receives audio data extracted by an audio extracting unit(220) or subtitles data extracted by a subtitles extracting unit(280) to extract words from the extracted data based on morpheme analysis. A word sign language image search unit(250) searches for a word sign language image matched with the extracted words or a sentence including the words and outputs the image. A synthesizing unit(270) synthesizes the outputted sign language image with a digital video. [Reference numerals] (210) Moving picture separating unit; (220) Audio extracting unit; (230) Video extracting unit; (240) Word analyzing unit; (250) Word sign language image search unit; (260) Sign language image database; (270) Synthesizing unit; (280) Subtitle extracting unit; (AA) Video; (BB) Sign language image; (CC) Audio; (DD) Subtitle;
Patent KR-20130034114-A (KR)
Title: Manufacturing method of natural ceramide from by-product of grain and natural ceramide manufactured by the method
Inventor: AHN TAE JIN
IPC: A61K31/164
Filed: 2011-09-28
Abstract: PURPOSE: A method for preparing a natural ceramide composition from grain-processed by-products and the natural ceramide composition are provided to enhance glucosylcerebroside content and to be used in a food product and a cosmetic product as a functional ingredient. CONSTITUTION: A method for preparing a natural ceramide composition comprises: a step of putting grain-processed by-products into an extractor(10); a step of supplying a compressed non-polar solvent and extracting and removing non-polar lipid; a step of supplying a polar solvent and extracting phospholipid; and a step of passing the natural ceramides through an adsorbent and selectively extracting glucosylcerebroside based on adsorption difference between ingredients of natural ceramides.
Patent KR-20130034498-A (KR)
Inventor: MOON JI HWAN
IPC: G08B25/14
Filed: 2011-09-28
Abstract: 본 발명은 선박의 경보 모니터링 점검 시스템에 관한 것으로, 엔진 룸의 하층에 설치된 설비에 마련되어 상기 설비의 이상 유무를 감지하는 센서와, 상기 센서로부터 감지된 신호를 통신 라인을 통해 수신받아 설비의 이상 유무를 알리는 엔진 룸의 상층에 마련된 감시부 및 상기 감시부에서 수신받은 센서의 감지 신호를 수신받아 엔진 룸의 하층에 위치한 작업자의 휴대단말기로 송출하는 통신 중계부를 포함하는 선박의 경보 모니터링 점검 시스템이 개시된다.  이로부터, 감시부로 전달된 신호는 통신 중계부를 통해 엔진 룸의 하층에서 센서를 점검하는 작업자의 휴대단말기로 전송되어 작업자가 센서의 점검 결과를 실시간으로 파악할 수 있어 센서의 점검 작업을 신속하게 수행할 수 있다.
Patent KR-20130036449-A (KR)
Title: Light emitting apparatus
Inventor: OH NAM SEOK
IPC: H01L33/50
Filed: 2011-10-04
Abstract: PURPOSE: A light emitting device is provided to prevent a hot spot or mura by emitting light with a uniform distribution through a light funnel member. CONSTITUTION: A light emitting device includes a light emitting unit(110), a light funnel member(150), and a phosphor plate. The light funnel member includes a light input unit, a light output unit, and a penetration path. The penetration path is located between the light input unit and the light output unit. The penetration path mixes light and guides the mixed light to the light output unit. The phosphor plate is arranged on the light output unit.
Patent KR-20130037589-A (KR)
Title: Back light assembly
Inventor: KIM JUN HYUNG
IPC: G02F1/13357
Filed: 2011-10-06
Abstract: PURPOSE: A back light assembly is provided to prevent light from leaking to an adjacent light guide part by using a partition arranged between the light guide parts. CONSTITUTION: A first partition(170a) is arranged in the empty space between a second light guide part(131b) and a first light guide part(131a). A second partition(170b) is arranged in the empty space between a third light guide part(131c) and a second light guide part. A partition(170) and a supporter support a diffusing plate. The light emitted from the lateral surface of a light guide part(131n) runs to an adjacent light guide part. The lateral surface of the partition reflects the light to an upper direction.
Patent KR-20130037600-A (KR)
Title: Smart window display
Inventor: WOO JONG HOON
IPC: G02F1/1333
Filed: 2011-10-06
Abstract: PURPOSE: A smart window display device is provided to extend the applicability of a liquid crystal display device by securing transparent display. CONSTITUTION: A first polarizing plate(220) polarizes the natural light penetrating a polymer dispersed liquid crystal device(290). A liquid crystal panel(200) and a second polarizing plate(210) display an image by using the light polarized through the first polarizing plate. A reflection medium(280) is formed between the polymer dispersed liquid crystal device and the first polarizing plate to reflect the light. A smart window display turns on the polymer dispersed liquid crystal device to perform transparent display in a light transmitting mode or turns off the polymer dispersed liquid crystal device to perform opaque display in a light scattering mode.
Patent KR-20130039459-A (KR)
Title: Foamed insulation material and method for producing same
Inventor: LEE JANG HOON
IPC: E04B1/80
Filed: 2011-10-12
Abstract: PURPOSE: A foam insulation material and a producing method for the same are provided to facilitate to produce an existing foam insulation material producing facility through a simple substitution. CONSTITUTION: A foam insulation material is made of a material with a low or none engaging force to a foaming body and forms fine grooves or embosses on the entire surface or dents by a face plate on one or both sides of the foaming body. The manufacturing method of the foaming body comprises the following steps: filling vesicatory resin into a space between upper and lower face plates; foaming the filled resin; hardening the foamed resin; and obtaining the foam insulation by removing one or both face plates. [Reference numerals] (AA) Foam insulation material;
Patent KR-20130043005-A (KR)
Title: Hot plate amd method manufacturing the same
Inventor: KIM ICK CHAN
IPC: H01L21/683
Filed: 2011-10-19
Abstract: PURPOSE: A hot plate and a manufacturing method thereof are provided to uniformly supply heat energy to all areas of a wafer by reducing a horizontal temperature gradient on the upper surface of a susceptor. CONSTITUTION: A first heat transmission layer(310a) is located on a first barrier layer. A second barrier layer(320b) is located on the first heat transmission layer. The first and second barrier layers include a plurality of first and second sub nanobarrier layers. A second heat transmission layer(310b) is located on the second barrier layer. A third barrier layer(320c) is located on the second heat transmission layer.
Patent KR-20130043286-A (KR)
Inventor: CHOI KYUNG SIK
IPC: F25D27/00
Filed: 2011-10-20
Abstract: PURPOSE: A refrigerator home bar with a sight glass is provided to maintain aesthetic by not normally showing the inside of the refrigerator home bar and to include an excellent thermal insulation effect by including the sight glass as a double window. CONSTITUTION: A refrigerator home bar comprises a housing unit, a door(2000), and a sight glass(3000). The sight glass normally maintains a transparent state by vertically overlapping a fixed polarizing plate and a rotating polarizing plate. The rotating polarizing plate rotates when a power switch is operated, and the fixing polarizing plate and the rotating polarizing plate are horizontally overlapped so that the sight glass is in the transparent state. The rotating polarizing plate rotates for a predetermined time until the sight glass returns to an opaque state.