baber/WOPTO huggingface dataset:
Patent KR-20030023830-A (KR)
Title: Interoperatable module system and its method of financial data for automated settlement process
Inventor: SONG YEONG HO
Filed: 2001-09-14
Abstract: PURPOSE: A financial transaction data intermediating system and method is provided to receive virtual accounts linked to a real account from a joint bank, to automatically collect money from joint EC sites or companies, and to settle payments for transaction participants. CONSTITUTION: The method comprises steps of an intermediation module receiving transaction participant data, finance data, basic commodity data and transaction data from joint EC sites, and transmitting the received data to a joint bank. The data transmitted by the intermediation module is stored at a virtual account management server of the joint bank. The transaction data and deposit estimation data, occurring at each transaction, are stored at the virtual account management server. The virtual account management server checks the deposit estimation data with the real deposit data, and processes a deposit refusal caused by a deposit shortage, a transmission of a deposit money error message, or affirmation of a dishonored check according to a checking result. The virtual account management server transmits the process result to the intermediation module, and the intermediation module transmits an observance request message to a corresponding EC site or company.
Patent KR-20030024032-A (KR)
Title: optical comnucation system for learning
Inventor: JUNG JU WAN
IPC: H04B10/00
Filed: 2001-09-15
Abstract: PURPOSE: An educational optical communication system is provided to configure an environment in which a learner quickly and clearly understands a state and result of an experiment and a practical exercise for optical communication, so as to improve achievement in learning. CONSTITUTION: A microcomputer controls an optical communication learning system according to a transceiving operation. A PC(Personal Computer) provides the microcomputer with originating data in RS-232 signals. A pulse generator generates CW(Continue Wave) and one of 270Hz, 1KHz and 2KHz pulses according to a control signal of the microcomputer. A plurality of laser diodes(7) perform electric-optical conversion with one of 1310nm, 1550nm and 635nm according to the pulse. A feedback amplification circuit performs bias amplification to emit the laser diodes with predetermined optical power, to generate laser light having a specific strength. A bias control switch(13) enables a learner to directly control a bias to the feedback amplification circuit. The first data converter converts the RS-232 signals for the originating data into TTL(Transistor-Transistor Logic) signals, to be combined in the laser diodes. A light receiving diode receives optical signals generated from the laser diodes through an optical fiber, and performs optical-electric conversion for the received optical signals. An amplification circuit amplifies the electric optical signals to have a predetermined gain rate. An auxiliary display part visually displays the strength of the amplified optical signals for the learner. An amplification bias switch(51) adjusts the gain rate for the learner. The second data converter converts a TTL signal pattern of the optical signals generated from the amplification circuit into RS-232 signals. A D/D(Digital-to-Digital) converter converts output signals of the second data converter into digital signals. And a display part(33) visually displays data of the D/D converter for the learner by being processed in the microcomputer with a display algorithm.
Patent KR-20030025495-A (KR)
Title: Wafer with align mark
Inventor: KANG HYEON JAE
IPC: H01L21/027
Filed: 2001-09-21
Abstract: PURPOSE: A wafer having a primary mark is provided to increase a size of a primary signal induced from the primary mark by increasing a size of a primary mark without reducing an area of a chip. CONSTITUTION: An exposure field(20) is formed with a plurality of chips(21) and a plurality of scribe lanes(22). The scribe lanes(22) are located at edges of the chips(21). A plurality of projection portions(24a,24b) is formed on an edge portion as intersection portions between the scribe lanes located on edges of the exposure field(20). A plurality of primary marks(25a,25b) is located within the scribe lanes(22) including the projection portions(24a,24b). A plurality of recesses(26a,26b) are formed on the scribe lanes corresponding to the scribe lanes(22) having the projection portions(24a,24b) in order to prevent an over-exposure phenomenon of the scribe lanes(22) facing the projection portions(24a,24b).
Patent KR-20030025671-A (KR)
Title: Method for fabricating capacitor
Inventor: HONG GWON
IPC: H01L27/115
Filed: 2001-09-22
Abstract: PURPOSE: A method for manufacturing a capacitor is provided to reduce a leakage current and to obtain a high dielectric constant by preventing out-diffusion of oxygen in a dielectric film with a high permittivity. CONSTITUTION: A lower electrode(28) is formed on a semiconductor substrate(21) sequentially stacked on a conductive layer(22), an ohmic contact layer(24) and a diffusion barrier layer(25). At this time, the lower electrode(28) is composed of platinum and alloy containing a noble metal except for platinum. A conductive oxide layer(29) is formed on the lower electrode(28) by oxidizing the surface of the alloy. A dielectric film(30) with a high permittivity is formed on the conductive oxide layer(29). An upper electrode(31) is formed on the dielectric film(30).
Patent KR-20020028821-A (KR)
Inventor: SHIMURA TOSHIYA
IPC: H04B17/00
Filed: 2001-10-10
Abstract: PURPOSE: A method for measuring and improving xDSL transmission characteristics is provided to easily execute characteristic confirmation of a channel in an xDSL for rapid data communicating by utilizing a telephone line by an existing copper wire. CONSTITUTION: A voltage measuring unit(13) is connected via an MDF(Main Distribution Frame)(11) and a test lead-in relay(12) connected to subscriber's side line wire terminals(T,R). The voltage measuring unit(13) has an amplifying function capable of regulating a receiving signal level, and is connected to an ADC(Analog to Digital Converter)(14) for A-D converting. A controller(16) connected to the converter(14) fast-Fourier-transforms the digital output signal obtained by a prescribed sampling frequency by the ADC(14) at an FFT unit(15). The obtained noise spectrum is compared with a template for deciding a noise level applied by a weight in an object frequency, and whether the channel can be used or not is decided.
Patent KR-20030029729-A (KR)
Title: Method of Driving Liquid Crystal Display Module and Apparatus thereof
Inventor: SUNG NAK JIN
IPC: G02F1/133
Filed: 2001-10-10
Abstract: PURPOSE: A method and an apparatus for driving a liquid crystal display module are provided to remove an afterimage by displaying white signals to the liquid crystal panel when turning off the liquid crystal display module. CONSTITUTION: A liquid crystal module(30) includes a liquid crystal panel(38) displaying images, gate and data drivers(34,36) driving gate lines(G1-Gn) and data lines(D1-Dm) of the liquid crystal panel, and a timing control part(32) controlling driving timing of the gate and data drivers, and supplying data signals. A system power source(24) supplies driving voltage to the liquid crystal module. A power charge circuit(44) supplies additional driving voltage for a predetermined time if the system power source is turned off. The timing control part senses the power-off of the system for supplying the additional driving voltage to the liquid crystal module, and generates white data signals by using the additional driving voltage.
Patent KR-20030037184-A (KR)
Title: Process of manufacturing chassis for plasma display device
Inventor: BANG WON GYU
IPC: H01J9/24
Filed: 2001-11-02
Abstract: PURPOSE: A method for manufacturing a chassis base for a plasma display is provided to have enough strength to resist bending and twisting without reinforcement in a press-type chassis base. CONSTITUTION: A metal plate is cut in an approximate rectangular shape of a predetermined size(S1). An aluminum plate may be used as the metal plate. A rib forming part and a flange part are formed by drawing the metal plate(S2). The rib forming part is approximately perpendicular to the metal plate, and the flange part is bent from one end of the rib forming part to the outside so as to approximately parallel to the metal plate. A front cabinet fixing part is formed by cutting the flange part(S3).
Patent KR-20020000746-A (KR)
Inventor: JUNG HONG GUK
IPC: F04B9/04
Filed: 2001-11-19
Abstract: PURPOSE: A lubrication oil feeding apparatus and piston pump unit is provided to allow the maintenance work for the apparatus to be easily performed, while allowing parts of the piston pump unit to be easily replaced. CONSTITUTION: A lubrication oil feeding apparatus(100) comprises a base(110); a fixed frame(120) fixed onto the base; a movable frame(130) disposed in the vicinity of the fixed frame, in such a manner that the movable frame slides in a vertical direction; a frame moving unit for moving the movable frame in a vertical direction along the fixed frame; a support frame(150) having an end fixed to the movable frame; a motor base(165) mounted onto the base, at the other end of the support frame; a motor(160) mounted onto the motor base; a motor rotating shaft(180) connected to the shaft of the motor, and arranged beneath the motor base; an eccentric cam(220) mounted to the motor rotating shaft; a pump body(210) for accommodating the eccentric cam; a pump body support(185) for accommodating the motor rotating shaft, and which has an end fixed to the motor base and the other end fixed to the pump body; a piston pump unit(230) contacting the eccentric cam, and which is assembled to the pump body; and an outlet pipe(190) connected to the piston pump unit so as to feed a lubrication oil to outside.
Patent KR-20030041227-A (KR)
Title: Reinforced Structure Of Side Door
Inventor: SONG JAE BONG
IPC: B60J5/04
Filed: 2001-11-19
Abstract: PURPOSE: A reinforcing structure for a side door is provided to prevent deformation of the door in a collision and to improve safety of a passenger by having the reinforcing member to support an impact bar, to be welded to an inner panel and joint to an outer panel with a filler metal. CONSTITUTION: A reinforcing structure for a side door has a reinforcing member(30) and a filler metal(40). The reinforcing member has a placing portion(31) on an upper portion of a body in same round with an external shape of an impact bar(20). A receiving portion(32) is formed to a center of the reinforcing member. A lower portion of the reinforcing member is welded to a rear surface portion of the body and an inner panel(11) to be folded. The filler metal is placed to an outside of the impact bar and the receiving portion and is jointed to an inside of an outer panel(12). Therefore, rigidity of the side door is improved by jointing the filler metal to the lower portion of the outer panel. Safety of a passenger is improved by reducing impact energy in a collision.
Patent KR-20030043454-A (KR)
Title: Reception reject system of facsimile in a selectively
Inventor: PARK BYEONG IK
IPC: H04N1/32
Filed: 2001-11-28
Abstract: PURPOSE: A selective reception rejecting system of a facsimile is provided to automatically reject receiving of undesired information based on information of an inputted telephone number. CONSTITUTION: A reception rejecting system is placed between a telephone line incoming side of a facsimile and a main CPU(10) of the facsimile. The rejecting system includes a receiving number detector(20), and a receiving rejection controller(30) having a telephone number storage memory(31) and a program(32) related with a reception rejecting function. The system further includes a switch controller(40) for switching a switch(41) set at the telephone line incoming side on the basis of a received telephone number, and a distributor(50) for connecting a line to the main CPU to receive information in the case that information is normally received.
Patent KR-20020068454-A (KR)
Inventor: UCHIDA TOSHIYA
IPC: G06F13/28
Filed: 2001-11-30
Abstract: PURPOSE: A semiconductor memory device and an information processor are provided to improve the data writing speed of a semiconductor memory device. CONSTITUTION: A transferring device(101) transfers data in a burst mode. The number of transfers setting device sets the number of pieces of data to be transferred in the burst mode. A write command inputting device(103) receives a write command input. A clocking device(104) clocks elapsed time after a write command is inputted. A write start time setting device(105) sets time until data writing starts in accordance with the number of pieces of data set by the setting device(102).
Patent KR-20030048821-A (KR)
Title: Functional composition for construction material and materials prepared therefrom
Inventor: CHOI SANG GEUN
IPC: C04B28/02
Filed: 2001-12-13
Abstract: PURPOSE: A functional construction composition and functional mortar, artificial slate and construction material prepared from the composition are provided, wherein the composition has far infrared ray radiating, electromagnetic wave screening, deodorizing, heat storing, antibacterial and antifungicidal effects. CONSTITUTION: The functional construction composition comprises 40-65 parts by weight of silica; 20-70 parts by weight of graphite; 20-40 parts by weight of sericite; 0.01-3 parts by weight of alkylbenzyldimethyl ammonium chloride; and optionally 16.7-27.1 parts by weight of cement. Preferably the artificial slate is prepared by mixing the composition and a flame retardant resin.
Patent KR-20030049032-A (KR)
Title: Multipurpose Rack of the Car
Inventor: JEONG YONG SEOK
IPC: B60R7/08
Filed: 2001-12-13
Abstract: PURPOSE: A multipurpose hanging device for a vehicle is provided to easily use a receiving space by coupling the hanging device with connecting rods connecting the back of a seat to a head support. CONSTITUTION: A hanging device is coupled with connecting rods(101,102) connecting the back of a seat to a head support. A connecting unit(103,104) in the hanging device rotates along the connecting rod. A length controlling unit(106) is capable of controlling the length of the hanging device regardless of the space between the seats.
Patent KR-20030052199-A (KR)
Title: Manufacturing method of retained austenite contained cold rolled steel sheets with good ductility
Inventor: JIN GWANG GEUN
IPC: C21D8/02
Filed: 2001-12-20
Abstract: PURPOSE: A manufacturing method of residual austenite contained cold rolled steel sheet having better ductility compared to existing method by controlling cooling of the annealed steel sheet after titrating chemical constituents of high strength cold rolled steel sheet having 50 to 80 kg/mm¬2 class tensile strength and annealing the steel sheet is provided. CONSTITUTION: The method comprises a process of hot rolling a steel slab under the condition that finish rolling temperature is A3 transformation point or more, wherein the steel slab comprises 0.05 to 0.20 wt.% of C, 0.7 to 1.5 wt.% of Si, 1.5 to 1.8 wt.% of Mn, 0.005 wt.% or less of S, 0.003 to 0.007 wt.% or less of N, 0.01 to 0.1 wt.% of Mo, 0.0005 to 0.002 wt.% of B, 0.01 to 0.1 wt.% of P, 0.02 to 0.5 wt.% of Al, 0.02 to 0.10 wt.% of Cr, 0.1 to 0.5 wt.% of Ni and a balance of Fe and inevitable impurities, and Si, P, Al, Cr and Ni satisfy the following relational expression: Si%+9.5P%+0.45Al%+0.3Cr%+0.6Ni%>=1.0; a process of cold rolling the coiled steel slab to a reduction ratio of 30 to 80% after coiling the hot rolled steel slab at a temperature of 630 to 680 deg.C; a process of maintaining the cold rolled steel sheet at a temperature of 780 to 810 deg.C for 5 to 180 seconds; and annealing process comprising the steps of first cooling the steel sheet to a temperature of 620 to 680 deg.C at a cooling rate of 5 deg.C/sec or less, second cooling the first cooled steel sheet to a temperature of 350 to 450 deg.C, maintaining the second cooled steel sheet at a constant temperature for 1 to 20 minutes and cooling the resulting steel sheet to an ordinary temperature, wherein an average cooling rate (CRtot) of the first and second cooling rates in the annealing process satisfies the following relational expression: CRmax£3.0-(Mn+0.3Si%+2.7P%)|>=log(CRtot, deg.C/sec)>=CRmin£2.5-(Mn+0.3Si%+2.7P%)|, where the CRmax is the maximum cooling rate, the CRtot is the total cooling rate, and the CRmin is the minimum cooling rate.
Patent KR-20010079861-A (KR)
IPC: C07D249/10
Filed: 1999-09-20
Abstract: 본 발명은 신규한 하기 일반식 (Ⅰ)의 설포닐트리아졸 유도체, 그의 제조방법 및 원치않는 미생물을 구제하기 위한 그의 용도에 관한 것이다: 
     
       
     
     상기 식에서, 
     Hal 은 불소, 염소 또는 브롬을 나타내고, 
     R 1 은 수소, 알킬, 알콕시알킬, 사이클로알킬, 알킬아미노카보닐, 임의로 치환된 페닐, 임의로 치환된 페녹시를 나타내거나, 임의로 치환된 헤테로사이클릴을 나타내며, 
     R 2 는 알킬을 나타내거나, 임의로 치환된 헤테로사이클릴을 나타내거나, 하기 일반식의 라디칼을 나타내고: 
     
       
     
     여기에서, 
     R 3 은 할로겐, 알킬 또는 페닐을 나타내며, 
     R 4 는 수소 또는 알킬을 나타내고, 
     R 5 는 알킬 또는 임의로 치환된 페닐을 나타내거나, 
     R 4 및 R 5 은 이들이 부착된 질소원자와 함께 치환될 수 있고 추가의 헤테로 원자를 함유할 수도 있는 헤테로사이클릭 링을 형성한다.
Patent KR-20010080291-A (KR)
Title: Generating a nonlinear model and generating drive signals for simulation testing using the same
IPC: G01M7/00
Filed: 1999-10-19
Abstract: A method and system for generating an improved nonlinear system model includes generating a linear system model and using a response therefrom to generate the nonlinear system model. A method and system for generating drive signals for a test system uses the improved nonlinear system model or a conventional nonlinear system model.
Patent KR-20010090803-A (KR)
Title: High frequency content recovering method and device for over-sampled synthesized wideband signal
IPC: H04B1/62
Filed: 1999-10-27
Abstract: A pitch search method and device for digitally encoding a wideband signal, in particular but not exclusively a speech signal, in view of transmitting, or storing, and synthesizing this wideband sound signal. The new method and device which achieve efficient modeling of the harmonic structure of the speech spectrum uses several forms of low pass filters applied to a pitch codevector, the one yielding higher prediction gain (i.e. the lowest pitch prediction error) is selected and the associated pitch codebook parameters are forwarded.
Patent KR-20010093853-A (KR)
Title: Method for manufacturing of strips and rolling mill line
IPC: B21B15/00
Filed: 1999-12-08
Abstract: The invention relates to a method for the manufacturing of strips of stainless steel, comprising cold rolling of a strip which in a foregoing process has been manufactured through casting a melt to form a cast strip and/or has been hot rolled. The cold rolling is performed in a rolling mill line (B), which comprises, in the initial part of the line, at least two initial cold rolling mills (11-13) in series, after said initial cold rolling mills at least one annealing furnace (18) and at least one pickling section (26, 27), and in a terminating part of the line, at least one more cold rolling mill (32). The patent specification discloses various modes of operation, including passing the strip once or twice through the line.
Patent KR-20010102361-A (KR)
Title: Process for selective oxidation of primary alcohols and novel carbohydrate aldehydes
IPC: C07H1/00
Filed: 2000-02-24
Abstract: A process for producing nitrosonium ions is described, in which a nitroxyl compound such as TEMPO is oxidized using an oxidizing agent in the presence of a complex of a transition metal such as Mn, Fe, Cu, and a complexing agent such as a polyamine. The process is useful for the oxidation of carbohydrates containing at least 1 cyclic monosaccharide chain group carrying a carbaldehyde group per 100 or per 25 monosaccharide units and per molecule.
Patent KR-20020003561-A (KR)
IPC: F15B11/15
Filed: 1999-04-13
Abstract: 본 발명은 복수개의 아울렛포트로부터의 압력유체의 방출을 자동적으로 절환하는 장치에 관한 것이다. 더욱 자세하게는, 전기적요소등을 이용하지 않고 압력유체자체의 압력을 이용하여 절환을 행하는 압력유체자동절환장치에 관한 것이다. 
     본 발명의 기술적 과제는 전기적요소등을 사용하지 않고 구조를 복잡화하는 일없이 절환성능을 양호하게 한 압력유체자동절환장치를 제공하는 것에 있다. 
     이 기술적 과제의 해결방법은 압력유체가 도입되는 인렛포트와 압력유체가 방출되는 복수개의 아울렛포트와, 인렛포트, 아울렛포트의 사이에 마련되어 압력유체가 방출되는 아울렛포트를 절환하는 절환밸브와, 절환밸브의 절환동작을 안내하는 파일럿밸브와, 도입된 압력유체의 압력에 반응하여 파일럿밸브의 안내동작을 조절하는 반응체를 구비하여 이루어지는 압력유체자동절환장치에 있어서, 파일럿밸브는 안내동작이 반응체에 의해서만 조절되는 제1파일럿부와, 안내동작의 초기와 말기가 반응체에 의해서 조절되고 안내동작의 중기가 압력유체의 압력으로 조절되는 제2파일럿부를 구비하고 있는 것을 특징으로 하는 유체자동절환장치를 구성한다. 
     이 해결방법에 의하면, 제1파일럿부에 의한 반응체에 의해서만 조절되는 안내동작과, 제2파일럿부에 의한 반응체유체의 쌍방에 의해서 조절되는 안내동작과의 2계통이 구성된다. 그리고, 제2파일럿부의 안내동작은 초기와 말기가 반응체에 의해서 조절되고, 중기가 압력유체의 압력으로 조절된다. 따라서, 절환의 중간점 부근에서 정지한 후의 재동작시에는 압력유체가 도입되면 압력유체의 도입량이 적더라도, 제2파일럿부의 안내동작의 중기가 확실하게 이루어진다.  이 때문에, 절환동작이 원활하고 확실하게 이루어지게 된다.
Patent KR-20010114266-A (KR)
IPC: H04B7/08
Filed: 2001-03-12
Abstract: 기지국 장치(100)의 확산부(112)에서, 이동국 장치(101)에서의 역확산 후에 소정의 신호 품질을 얻는 것이 거의 불가능한 저확산율로 송신 데이터를 확산하고, 이동국 장치(101)의 오류 검출부(137)에서, 수신 데이터의 역확산 후의 데이터로부터 오류를 검출했을 때에 기지국 장치(100)에 데이터의 재송 요구를 행하여, 역확산/합성부(136)로 역확산 후의 데이터를 유지한다.  그 후, 이동국 장치(101)는 이 유지 데이터와 재송되어 온 역확산 후의 데이터를 합성하는 처리를, 오류의 미검출 상태로 될 때까지 반복한다.  이것에 의해, 전송 효율을 향상시킬 수 있어, 송신 전력을 극력 억제할 수 있어, 복수 안테나에서의 송신에 있어서의 다이버시티 성능을 향상시킬 수 있다.
Patent KR-20020022676-A (KR)
IPC: H05K3/32
Filed: 2001-03-23
Abstract: 본 발명은 대상물의 다소의 요철에도 불구하고, 도전 입자를 통한 전기적인 접속을 확실하게 행할 수 있는 전기적 접속 재료를 제공함으로써 제 1 대상물(4)의 전기 접속 부분과 제 2 대상물(2)의 전기 접속 부분을 전기적으로 접속하기 위한 전기적 접속 재료(100)이며, 제 1 대상물(4)에 배치하는 필름형 접착층이고, 복수의 도전 입자(7)와 이 도전 입자(7)를 함유하는 제 1 바인더(8)와 제 1 필러(F1)로 구성되는 제 1 필름형 접착층(6)과, 제 1 필름형 접착층(6)의 위에 배치되며, 제 1 바인더보다 점도가 낮은 제 2 바인더(9A)와 제 2 필러(F2)로 구성되는 제 2 필름형 접착층(9)으로 구성되어 있다.
Patent KR-20020018680-A (KR)
Title: Substituted 1-aza-2-imino-heterocycles and their use as nicotinic acetylcholine receptors activators
IPC: A61P25/26
Filed: 2001-04-20
Abstract: There is provided heterocyclic compounds of the following formula (I):  in which, A is optionally substituted alkyl group, optionally substituted aryl group or optionally substituted heterocyclic group; B1 and B2 are, hydrogen atom, alkyl group or hydroxyl group; or combined together to represent carbonyl group; X is oxygen atom, sulfur atom, carbon atom or nitrogen atom; dotted line shows either presence or absence of bond; n is integer of 1 or 2; and the group -X-Y- represents optionally substituted alkylene or cyclic alkenylene bond; or a pharmaceutically acceptable salt thereof. These compounds have good affinity for alpha4beta2 nicotinic acetylcholine receptors and activate the same to thereby exert a preventive or therapeutic effect on cerebral dysfunction.
Patent KR-20020019105-A (KR)
IPC: H04N5/781
Filed: 2000-06-23
Abstract: 본 발명은 데이터 흐름을 유지시키는 방식으로 소정의 기록-시간 에러에 응답함으로써 오디오-비주얼 데이터 저장 및 검색을 위한 디스크 드라이브를 최적화하기 위한 장치 및 방법에 관한 것이다.  디스크 상의 소정의 섹터와 관련된 동기화 영역이 검출되지 않는 기록-시간 에러에 응답하여, 디스크 드라이브는 오류를 나타내거나 디스크 드라이브가 다음 동기와 영역을 탐색하도록 하기 위해 비트의 채움 패턴 또는 복귀 상태를 호스트 마이크로프로세서로 전달함으로써 응답한다.  비트의 채움 패턴은 다운-스트림 오디오-비주얼 장치에 의해 판독되지 않은 데이터를 프로세싱하는데 부정적인 영향을 최소화 하도록 선택될 수도 있다.  전술한 특성은 통상의 디스크 드라이브의 전형적인 연속적 형태와 구별된다.  새로운 특성은 오디오-비주얼 드라이브에 중요한 데이터 흐름을 유지한다.
Patent KR-20020062171-A (KR)
Title: Electric circuit
Inventor: MOROSAWA KATSUHIKO
IPC: G09F9/30
Filed: 2002-01-16
Abstract: PURPOSE: To place a shift register which is applied as the driver for a liquid crystal display element in stable operation. CONSTITUTION: In the display area 11 of the liquid crystal display element 1, mxn pixels are arranged in matrix and (n) gate lines GL1 to GLn extending in the main scanning direction and (m) data lines DL1 to DLm extending in the vertical scanning direction are arranged on one substrate. A circuit composed of the respective gate lines GL1 to GLn and elements such as TFTs, pixel capacitors, and compensating capacitors connected directly or indirectly thereto has electric characteristics like a distribution constant. The liquid crystal display element 1I sprovided with gate lines GLn+1 and GLn+2 which are so constituted as to have electric characteristics like a distribution constant as well as the gate lines GL1 to GLn of the display area 11. A gate driver 2 selects the gate line GLn+1 in a dummy element area 12 in the horizontal period right after the gate line GLn in the display area 11 is selected.