baber/WOPTO huggingface dataset:
Patent KR-20040039838-A (KR)
Title: Method of producing subaqueous non-separated blending material simultaneously having anti-corrosive function
Inventor: CHO IN SEONG
IPC: C09D5/16
Filed: 2002-11-05
Abstract: PURPOSE: Provided is a method for preparing an anti-washout underwater admixture with anti-corrosive function, by which one-part products having both functions as an admixture for underwater concretes and as an anti-corrosive agent are produced. CONSTITUTION: The method for preparing an anti-washout underwater admixture with anti-corrosive function comprises: providing an anti-washout underwater admixture by mixing a cellulose-based thickener with a high-viscosity acrylic thickener; introducing a strength reinforcing agent, a liquid defoamer and a flowing agent into the admixture and compounding them together; and adding a powdery anti-corrosive agent to the compounded product and then mixing.
Patent KR-20040040059-A (KR)
Title: Pipe/Duct Fixture Device Using Metal Band
Inventor: CHO GWANG RAE
IPC: F16L3/12
Filed: 2002-11-06
Abstract: PURPOSE: A fixing apparatus of a pipe and a duct with a metallic belt is provided to fix the pipe of a pressure vessel which is difficult for tap processing to install a fixing tool by adjusting clamping force freely. CONSTITUTION: A fixing tool(2) for a pipe comprises a holder(5) for a fixed object(9), a metallic belt(4) and a clamping tool of the belt. The holder for the fixed object has a hanging surface. The metallic belt covers the fixed object on the holder. The clamping tool of the belt is arranged to both sides of the holder for the fixed object to fix the fixed object by generating clamping force with a bolt and a nut. A lower fixing tool for connecting the belt is arranged to an outer surface of a large pressure vessel(1). Right and left belts of the metallic belt have holes. Holes are overlapped. Right and left belts are connected by covering an upper tool for connecting the belt on an upper side where right and left belts are overlapped. Thereby, piping damage due to clamping is reduced by using less rigid material than fixed pipe. Clamping force is adjusted freely because constricting length of the belt is long.
Patent KR-20040040745-A (KR)
Title: Online transporting system using P to P type and method thereof
Inventor: JUNG PILL YOUNG
Filed: 2002-11-07
Abstract: PURPOSE: A system and a method for the online transport using a P2P(Peer-to-Peer) method are provided to reduce a social expense needed for circulating material by directly making a material transport contract with other person having the material of the same destination as a user through a server on the Internet. CONSTITUTION: A web site server(10) transmits a search result to the user by searching a database if a search list request is received from the user, receives a transport charge while displaying the conclusion of the transport contract, and pays the transport charge while deleting a transport list if the transport is completed. Sender computers(21-2n) receive the information for a transporter by connecting to the web site server. Transporter computers(31-3n) receive the information for a sender by connecting to the web site server. A bank server receives the transport charge from the sender and remits the transport charge to the transporter. Receiver computers(51-5n) confirm the transport completion.
Patent KR-20040041435-A (KR)
Title: Method of fuel quatity controling for diesel engine
Inventor: CHOI YEONG HO
IPC: F02D41/38
Filed: 2002-11-11
Abstract: PURPOSE: A fuel control method of a diesel engine is provided to reduce idle noise and to improve performance of the engine throughout the range by stabilizing idle rpm and preventing idle hunting with the control logic controlling the optimal compensation value corresponding to engine rpm and temperature under pilot operation condition. CONSTITUTION: The operation mode of an engine is decided whether the pilot flag is on and engine rpm is pilot start rpm or not in turning on an ECU(Engine Control Unit) and in detecting starting of the engine(S100,S110,S120). The K3 angle control is performed corresponding to engine rpm and the fuel temperature compensation map within the pilot injection range(S130). The total K3 angle control is performed by adding the pilot fuel temperature compensation map to the K3 map(S131). The K3 angle control is performed in idling the engine, and the present engine rpm is compared with the pilot-off rpm in running the engine(S140,S150). The total K3 angle control is performed in case of present rpm to be more than pilot-off rpm.
Patent KR-20040042941-A (KR)
Title: Reactor for Manufacturing Compound Semiconductor
Inventor: KIM SEON UN
IPC: H01L21/205
Filed: 2002-11-14
Abstract: PURPOSE: A metal organic chemical depositing reaction furnace for manufacturing compound semiconductor is provided to be capable of improving the uniformity of a thin film, considerably reducing the source gas used for forming the thin film, and enhancing the quality of the thin film. CONSTITUTION: A metal organic chemical depositing reaction furnace for manufacturing compound semiconductor is provided with a reaction chamber(8), an upper plate(4) for covering the opened upper portion of the reaction chamber, and the first and second source gas supply line(2,13) for flowing source gas to the reaction chamber. At this time, the entire inner portion of the reaction furnace is enclosed with an insulator. At the time, the insulator includes an upper insulator(3) and a lateral insulator(6). Preferably, the upper insulator is tilted from the center portion of the reaction furnace to the downward direction.
Patent KR-20040044205-A (KR)
Title: Semiconductor devic having diffusion barrier layer surrounding source/drain and method fo forming the same
Inventor: CHOI JEONG DONG
IPC: H01L29/78
Filed: 2002-11-19
Abstract: PURPOSE: A semiconductor device having a diffusion barrier covering a source/drain and a forming method thereof are provided to simplify the fabrication process by forming a conductive layer pattern for playing a role of a contact as well as a role of the source/drain. CONSTITUTION: A semiconductor device having a diffusion barrier covering a source/drain includes a gate pattern, a recessed region, a channel part, and a diffusion barrier. A top part and a sidewall of the gate pattern are covered by a capping layer pattern. The recessed region(17) is formed on a semiconductor substrate(1) of both sides of the gate pattern. The channel part(C) is formed on an upper part of a sidewall of the recessed region corresponding to a lower part of the gate pattern. The diffusion barrier(19) is formed on a bottom of the recessed region except for the channel part and a part of a sidewall connected to the bottom of the recessed region.
Patent KR-20040046096-A (KR)
Title: Apparatus for monitoring nocking 0f vehicle with continuous variable valve timing
Inventor: LEE SEUNG U
IPC: F02P5/15
Filed: 2002-11-26
Abstract: PURPOSE: A knocking sensing method of a CVVT(Continuously Variable Valve Timing) vehicle is provided to prevent mis-sensing of knocking by monitoring variation of a valve timing-desired value and recognizing a knocking sensing release area if valve timing is changed over a predetermined value. CONSTITUTION: A knocking sensing method of a CVVT vehicle comprises steps of sensing a signal from a knocking sensor(ST10); receiving a valve timing-desired value and valve timing variation influencing the mis-sensing of knocking by engine operation conditions(ST20); deciding whether the variation of the valve timing-desired value is over a set value(ST30); producing a knocking strength signal if the variation of the valve timing-desired value is under the set value(ST40); receiving a knocking decision reference value by engine operation areas(ST50); comparing the knocking strength signal with the knocking decision reference value by engine operation areas(ST60); retarding ignition time for the ignition time retard by engine operation areas if the knocking strength signal exceeds the knocking decision reference value by engine operation areas(ST70); and operating with a mapping ignition time if the knocking strength signal is less than the knocking decision reference value(sT80).
Patent KR-20040048696-A (KR)
Title: Plat panel display device
Inventor: LEE SANG DEOK
IPC: G09F9/00
Filed: 2002-12-04
Abstract: PURPOSE: A flat panel display is provided to reduce an entire size and enhance the assembly capacity by using a thin metal clip. CONSTITUTION: An LCD(Liquid Crystal Display)(500) includes a display unit for displaying an image, a mold frame(200) mounted to the display unit, a plurality of metal clips(300) for fixing to the mold frame(200) and supporting the display unit, and a top chassis(400) for fixing the mold frame(200) and covering the display unit. The mold frame(200) is comprised of a bottom surface(210) and the first to fourth side walls(220,230,240,250) extended from the bottom surface(210). An LCD panel(110) is mounted to an upper portion of the first to fourth side walls(220,230,240,250). The top chassis(400) is comprised of an upper surface(410) formed a transmittance window for opening a display region of the LCD panel(110) and the fifth to eighth side walls(420,430,440,450) extended from the upper surface(410). The top chassis(400) is combined with the mold frame(200).
Patent KR-20040049442-A (KR)
Title: Method for jointly using vehicles by connecting the demands via Internet
Inventor: LEE GYU JIN
IPC: G06Q50/00
Filed: 2002-12-06
Abstract: PURPOSE: A method for commonly using a car through the car use needs connection based on the Internet is provided to remarkably save a car use expense of a cooperation and a personal user by renting/using a car in common without buying the car. CONSTITUTION: A user wanting to use the car is registered to a web community of a businessman as a member. The members find out a common user. The members are agreed for the common use and make a contract with the businessman(S409). The member uses the car in common and the use result is stored. The main server calculates a fuel usage of each member by using the use result of the members. The fuel usage of each member is settled.
Patent KR-20040051966-A (KR)
Title: Java card system and method of loading applet and communication thereof
Inventor: LEE JU YEONG
IPC: G06F15/00
Filed: 2002-12-13
Abstract: PURPOSE: A system for using a Java card and an applet loading/communicating method thereof are provided to make the card applet communicate with a terminal application safely and directly when the Java card is inserted into a card reader by installing the terminal application linked with the card applet to a web server. CONSTITUTION: The web server(100) includes an terminal application(110) loading the applet(210) by cooperating with an installer included in the Java card(200), an XML(eXtensible Markup Language) converter(130) converting the APDU(Application Protocol Data Unit) into the XML, and performing encryption/decryption and electronic sign/verification, and an off-card VM(Virtual Machine)(140). The off-card VM is equipped with a converter converting a Java class into a CAP(Card Applet) file in order to be used in the Java card, and performs a work for loading the applet. The Java card includes an on-card VM(240) equipped with an interpreter performing the applet and managing a memory, the installer for loading the applet, the XML converter(230), and an OS(Operating System) for operating the java card.
Patent KR-20040055046-A (KR)
Title: Device for enhancement of combustion
Inventor: KIM YOUNG S
IPC: F02M27/00
Filed: 2002-12-20
Abstract: PURPOSE: A device for enhancing combustion is provided to increase fuel efficiency, and to prevent discharge of harmful exhaust gas by promoting combustion of an internal combustion engine and by increasing output and acceleration of the engine. CONSTITUTION: A combustion accelerator body(10) is composed of a tubular aluminum housing(13), and a rubber heat insulating member(14) is mounted to the side of the tubular aluminum housing. Permanent magnets(12) are arranged continuously and longitudinally in the tubular aluminum housing, and surrounded by a far infrared ray emitting compound(11). The far infrared ray emitting compound is composed of refined mud of 1 to 40 wt%, silicon dioxide of 10 to 51 wt%, aluminum oxide of 5 to 27 wt%, calcium oxide of 15 to 50 wt%, manganese oxide of 10 to 40 wt%, titanium dioxide of 10 to 35 wt%, magnesia of 5 to 15 wt%, copper oxide of 2 to 20 wt%, ferric oxide of 2 to 30 wt% and gold or silver of 1 to 10 wt%.
Patent KR-20040056029-A (KR)
Title: Method of forming a metal line in a semiconductor device
Inventor: KO CHANG JIN
IPC: H01L21/28
Filed: 2002-12-23
Abstract: PURPOSE: A method for forming a metal interconnection of a semiconductor device is provided to form a cobalt ion-added copper alloy layer without a key hole or a void inside a via by forming a copper layer and by performing a cobalt ion implantation process by a CVD(chemical vapor deposition) method or an electroplating method that has an excellent via filling characteristic. CONSTITUTION: An interlayer dielectric(14) is formed on a semiconductor substrate(11) having a predetermined structure. The interlayer dielectric is patterned to form a dual damascene pattern having a via hole and a trench for exposing a predetermined region of the semiconductor substrate. After a diffusion blocking layer(15) and a seed layer(16) are formed on the resultant structure, a copper layer is formed to fill the via hole and the trench. A cobalt ion implantation process is performed to include cobalt ions in the copper and to form a copper alloy layer(18). After the copper alloy layer, the seed layer and the diffusion blocking layer are polished to form a metal interconnection, a capping layer is formed.
Patent KR-20040058636-A (KR)
Inventor: KIM HONG GI
IPC: H04L5/16
Filed: 2002-12-27
Abstract: PURPOSE: Apparatus and method for dual link in ethernet interface equipment are provided to remove an additional link setup process by applying the driving power to processors for dual physical layer. CONSTITUTION: Apparatus and method for dual link in ethernet interface equipment includes a first and a second signal buffer, a MAC layer processor, and a controller. The first and the second signal buffers(24-1,24-2) are used for turning on or off MII signals of dual physical layer processors(23-1,23-2) connected to an ethernet link. The MAC layer processor(25) is used for controlling output states of the MII signals of the first and the second signal buffers when troubles are generated from the ethernet link and the MAC layer processor. The controller(26) is used for controlling on-off states of the first and the second signal buffers.
Patent KR-20040060170-A (KR)
Title: Test mode circuit for controlling capacitance
Inventor: LEE SANG HO
IPC: G11C5/10
Filed: 2002-12-30
Abstract: PURPOSE: A test mode circuit is provided to adjust capacitance by comprising a capacitance adjustment logic. CONSTITUTION: A switching group comprises a plurality of switching devices which are controlled by a control signal and are connected to the first voltage line in parallel. A capacitance group comprises a plurality of capacitances(C3,C4,C5) which are connected between the switching group and the second voltage line lower than the first voltage line correspondingly and perform a charging operation when the plurality of switching devices are turned on.
Patent KR-20040062101-A (KR)
Title: Fabrication method of an array substrate having a reflective plate for a liquid crystal display device
Inventor: CHOI SU SEOK
IPC: G02F1/1335
Filed: 2002-12-31
Abstract: PURPOSE: A method for manufacturing an array substrate of an LCD(liquid crystal display) having a reflecting plate is provided to increase reflectivity and simplify the manufacturing process. CONSTITUTION: A transparent substrate(100) is selectively etched to form protrusions and depressions. A gate electrode(102) and a reflecting plate(104) are simultaneously formed on the substrate having the protrusions and depressions. A gate insulating layer(106) is formed on the gate electrode. A semiconductor layer(108), source and drain electrodes(110,112) are sequentially formed on the gate electrode. A passivation layer(114) is formed on the overall surface of the substrate and selectively etched to form a contact hole exposing the drain electrode. A pixel electrode(118) connected to the drain electrode through the contact hole is formed on the passivation layer.
Patent KR-20020029773-A (KR)
Title: Improvements in or relating to tempered glazings, and glass for use therein
IPC: C03C3/089
Filed: 2000-09-01
Abstract: Glazing, thermally tempered to required standards, are produced more readily by tempering panes having a high coefficient of thermal expansion (greater than 93 x 10<-7> per degree Centigrade) and for a low Fracture Toughness (less than 0.72 MPam <1/2>). Use of glasses selected according to the invention enables thin glazings (especially glazings less than 3mm thick) to be tempered to automotive standard with improved yields using conventional tempering methods, and thicker glazings to be tempered at lower quench pressure than required hitherto. Suitable glasses include glasses comprising, in percentages by weight, 64 to 75 %, SiO2, 0 to 5 % Al2O3, 0 to 5 % B2O3, 9 to 16 % alkaline earth metal oxide other than MgO, 0 to 2 % MgO, 15 to 18 % alkali metal oxide and at least 0.05 % total iron (calculated as Fe2O3).
Patent KR-20020038816-A (KR)
Title: Polypeptides having glucanotransferase activity and nucleic acids encoding same
IPC: A23L7/104
Filed: 2000-10-16
Abstract: The present invention relates to isolated polypeptides having glucanotransferase activity and isolated nucleic acid sequences encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the nucleic acid sequences as well as methods for producing and using the polypeptides.
Patent KR-20020050272-A (KR)
IPC: C07C37/20
Filed: 2000-10-30
Abstract: 본 발명은 다단계 진공 증류 및 단일 단계 또는 다단계 층 결정화 공정에 의해 BPA를 반응 유닛후의 반응 용액으로부터 분리하는 것을 특징으로 하는, 가교결합된 술폰화 폴리스티렌 수지(이온 교환 수지)의 존재하에 아세톤 및 페놀을 반응시킴으로써 2,2-비스(4-히드록시페닐)프로판(BPA)을 제조하는 방법에 관한 것이다.  부산물이 풍부한 부산물 스트림은 반응 유닛후에 재도입된다.
Patent KR-20020064322-A (KR)
Title: Electrode material for positive electrodes of rechargeable lithium batteries
IPC: H01M10/36
Filed: 2000-12-01
Abstract: The electrode material for positive electrodes of rechargeable lithium batteries is based on a lithium transition metal oxide. Said lithium transition metal oxide is a lithium transmission metal mixed oxide with at least two transition metals (for example nickel and/or manganese), has a layer structure and is doped (for example, with aluminium and/or boron). This inventive electrode material is characterized by a high cycle stability, yet is still economical to produce.
Patent KR-20020063245-A (KR)
IPC: A61K9/20
Filed: 2000-12-19
Abstract: 본 발명은 신규한 화학식 1의 치환된 N-벤질-인돌-3-일글리옥실산 유도체 및 종양성 질환을 치료하는데 있어서의 이의 용도에 관한 것이다.  본 발명은 또한 생리학적으로 허용되는 산 부가염 및 가능한 이의 N 옥사이드에 관한 것이다.  본 발명은 또한 생리학적으로 허용되는 무기 또는 유기산 및, 임의로 약제학적으로 이용 가능한 담체 물질 및/또는 희석제 또는 보조제와 함께 하나 이상의 화학식 1의 화합물 또는 이의 염 또는 N 옥사이드를 함유하는 약제학적 제제에 관한 것이다.  본 발명은 또한 하나 이상의 화학식 1의 화합물 또는 이의 염을 정제, 당제, 캡슐제, 주입용 액제, 앰풀제, 좌제, 경제, 흡입될 수 있는 산제, 현탁제, 크림제 및 연고제 형태로 함유하는, 화학식 1의 화합물의 투여 제형에 관한 것이다. 
     화학식 1 
     
       
     
     상기 화학식 1에서, 
     라디칼 R, R 1 , R 2 , R 3 , R 4 및 Z는 청구의 범위 제1항에서 정의한 바와 같다.
Patent KR-20020074221-A (KR)
Title: 파장 분산 보상 모듈 및 그것을 포함하는 광전송 시스템
IPC: H04J14/02
Filed: 2000-10-06
Abstract: 본 발명은 고 비트 레이트의 신호 전송을 간이한 구성으로 실현하는 파장 분산 보상 모듈 및 그것을 포함하는 광전송 시스템에 관한 것이다. 본 발명에 따른 파장 분산 보상 모듈은 소정 파장에 있어서의 광파이버 전송로의 파장 분산을 보상하는 파장 분산 보상기를 구비함과 동시에, 상기 파장 분산 보상기의 온도를 조절함으로써 상기 파장 분산 보상기에 있어서의 파장 분산을 원하는 값으로 설정하는 온도 조절기를 구비한다.
Patent KR-20020092971-A (KR)
Title: 단백질 중공 나노 입자와 그것을 이용한 물질운반체, 및세포로의 물질도입방법
IPC: A61P35/00
Filed: 2001-02-09
Abstract: 목적으로 하는 세포나 조직에 물질(유전자, 단백질, 화합물 등)을 특이적, 또한 안전하게 운반, 도입하기 위한 범용적인 방법으로서, 입자형성 능력을 갖는 단백질로서, B형 간염 바이러스(Hepatitis B Virus:HBV)표면항원 단백질에 생체인식분자를 도입한 중공 나노 입자를 제공한다.
Patent KR-20020087137-A (KR)
Title: 플라스틱 입자체
IPC: B29K21/00
Filed: 2001-04-10
Abstract: 본 발명은 열가소성 중합체와 천연섬유를 기반으로 한 플라스틱 입자체, 및 상기 입자체의 제조방법과 그로 제조된 몰딩에 관한 것으로서, 입자체의 세로방향으로 주로 배향된 천연섬유 다발은 열가소성 중합체의 외피가 구비되어 있는 것을 특징으로 한다.
Patent KR-20040010043-A (KR)
IPC: H04N5/445
Filed: 2001-04-10
Abstract: TV 프로그램의 시야를 방해하지 않고, 전체 화면 모드로 디스플레이되는 고화질 디지털 TV 프로그램과의 대화를 시작하는 방법이 기재되어 있다. 상기 방법은 고화질 디지털 TV 프로그램의 비디오 성분을 디스플레이상에 전체 화면 모드로 디스플레이하는 단계; 상기 고화질 디지털 TV 프로그램의 데이터 성분으로부터 방송국 ID에 관한 정보를 추출하는 단계; 상기 정보에 따라 상기 방송국 ID를 상기 디스플레이상에 변화된 외형으로 디스플레이하는 단계; 및 상기 변화된 외형에 응답하여 대화식 모드로 진입하기 위한 시청자 입력 선택을 수락하는 단계를 포함한다. 상기 방송국 ID는 새로운 보조 디지털 컨텐츠가 상기 고화질 디지털 TV 프로그램의 수신의 일부로서 수신될 때에만 변화된 외형으로 표시될 수 있다. 시청자 입력 선택의 결과로서, 화면의 일부에 TV 프로그램의 보조 디지털 컨텐츠의 디스플레이가 이루어질 수 있다.
Patent KR-20030062240-A (KR)
IPC: B26D7/00
Filed: 2003-01-03
Abstract: A unit for trimming the edge of a belt (4) containing reinforcing elements (5, 5', 5'')comprises a cutting tool (3) attached to a pivotable element (2) suspended from a carriage (13) movable horizontally across the longitudinal belt direction.   A unit for trimming the edge of a belt (4) containing reinforcing elements, in particular, nylon or wire cords (5, 5', 5'') comprises a cutting tool (3) attached to a pivotable element (2) suspended from a carriage (13) movable horizontally across the longitudinal belt direction. When the deviation of the element (2) from the vertical exceeds a specified limit, the servomotor (11) moves the carriage to correct this deviation so that the cutting tool is brought to the midpoint between the reinforcing elements (5', 5'').
Patent KR-20030061676-A (KR)
Title: 광섬유, 광섬유 테이프, 광케이블 및 광섬유를 가진광커넥터
IPC: G02B6/44
Filed: 2003-01-14
Abstract: 본 발명은 광케이블내에 고밀도 패키징을 가능하게 함과 함께 1.3 ㎛ 및 1.55 ㎛의 파장 대역 양쪽에서 높은 비트 전송률로 신호들을 전송할 수 있는 구조를 구비하는 광섬유 등에 관한 것이다. 예를 들어, 이 광섬유는 파장 1.55 ㎛에서 8.0 ㎛ 이하의 모드 필드 직경과, 1.26 ㎛ 이하의 차단 파장과, 파장 1.3 ㎛ 및 1.55 ㎛에서 12 ps/nm/km 이하의 절대치를 갖는 색 분산을 구비하도록 구성되어 있고, 이에 의해 광케이블내에 고밀도 패키징을 가능하게 하는 우수한 횡방향 내압성을 발휘한다.
Patent KR-20040067727-A (KR)
Inventor: LEE HYE JEONG
IPC: H03M11/20
Filed: 2003-01-24
Abstract: PURPOSE: An apparatus for recognizing key signals in a multifunctional telephone is provided to install an isolation circuit between a main microprocessor and an auxiliary microprocessor so as to recognize key signals regardless of the supply of external power. CONSTITUTION: An apparatus for recognizing key signals in a multifunctional telephone comprises a main microprocessor(100), an auxiliary microprocessor(110), a keypad(120), and an isolation circuit(130). The main microprocessor(100) works when power is supplied from the external. The main microprocessor(100) outputs timing signals to its own row output ports(P11-P14) at regular intervals of time. The auxiliary microprocessor(110) works when power is not supplied from the external. The keypad(120), arranged in a 4x3 matrix, has 10 numeric keys and 2 function keys. The isolation circuit(130) is to separate the main microprocessor(100) from the auxiliary microprocessor(110).
Patent KR-20040071390-A (KR)
Inventor: KIM TAE SEONG
IPC: E06B7/00
Filed: 2003-02-06
Abstract: PURPOSE: A swing door containing moment lighting glass is provided to apply moment lighting glass to a swing door. CONSTITUTION: The swing door containing moment lighting glass comprises the steps of connecting a movable unit and a fixed unit which contain rings formed on one side of each body mutually using a shaft, fitting the shaft in the ring of the movable unit tightly or to the ring of the fixed part rotatively to rotate the movable unit and the shaft against the fixed part, fixing the movable unit of a hinge(10) to a door(20) and fixing the fixed part of the hinge(10) to a wall(W) to fix the door(20) to the wall(W) movably. A long frame is formed to the door(20), a moment lighting grass is installed inner part the frame and provide with an electrode and a special liquid crystal plate between two grasses and a perforated route is formed to insert an electric wire(40) supplying electricity to the electrode.