baber/WOPTO huggingface dataset:
Patent KR-20000055498-A (KR)
Title: Ball joint
Inventor: KIM JIN GI
IPC: F16C11/06
Filed: 1999-02-06
Abstract: PURPOSE: A ball joint is provided to firmly combine a socket portion with a ball stud portion and to easily separate them from each other by improving the structure of the socket unit combined with the ball stud unit. CONSTITUTION: A ball seat unit(50) is combined in an accepting groove(41) of a socket unit(40). Herein, a male screw unit(51) is formed on an outer face of the ball seat unit and a female screw unit(44) is formed on an inner face. When the ball seat unit is entered while rotated, the ball seat enters an inner part while sinking in an accepting groove(41). Further, the ball seat unit is not connected so that a certain marginal space is formed between a slant face(43) and a projection(52). Thus, the projection is expanded toward the marginal space upon the entrance of the projection. In this state, when the ball enters through an inlet portion(42) of the accepting groove, the projection is pushed by the ball and expanded to the marginal space. The ball finally enters the inside of the ball seat unit.
Patent KR-19990072705-A (KR)
Title: 계층구조시퀀스넘버방식을사용한가변크기의데이터단위를위한ａｒｑ프로토콜지원방법
IPC: H04L29/08
Filed: 1999-02-18
Abstract: 본 발명은 가변 전송 속도의 환경에서 ARQ 프로토콜을 지원하는 계층 시퀀스 넘버링 공간 방식(Hierarchical Sequence Numbering Space approach)을 사용하여 가변 크기의 프로토콜 데이터 단위(PDU)의 전송을 가능하게 한다.  본 방법의 주요한 특징은 다음과 같다. 
     (1) 임의의 가변 PDU 크기에 대한 지원. 
     (2) 프로토콜 헤더에서 가변 길이의 시퀀스 넘버(sequence number). 
     (3) 프로토콜 헤더에서 가변 깊이의 시퀀스 넘버. 
     (4) PDU에서 전송되는 시퀀스 넘버의 크기를 최소화하는 동적인 시퀀스 넘버  콘텍스트. 
     (5) 동위의(peer) 프로토콜 엔티티간의 시퀀스 넘버 공간(sequence number space) 정보를 조정하고 전달하는 프로토콜 제어 체계. 
     (6) 계층 시퀀스 넘버 공간 방식의 효율적인 구현을 위한 데이터 구조와 접근 방식.
Patent KR-19990046345-A (KR)
Filed: 1999-02-24
Abstract: 본 발명은 ITO slit전극 pattern 구조에 의한 fringe field effect(전계효과)에 의해 기존의 HAN(hybrid aligned nematic)-LCD(liquid crystal display) 에서 실현할 수 없었던 넓은 시야각과 대형화면에서도 동영상을 실현할 수 있는 빠른 응답속도등을 실현할 수 있는 전계효과를 이용한 dual domain hybrid aligned nematic (DHAN)-LCD에 관한 것이다. 상기 전계효과를 이용한 DHAN 액정표시장치는 제 2 도로 표시된다. 
     본 발명의 전계효과 DHAN-LCD는 ITO slit 전극에 pattern을 형성하여 전계를 인가했을 때 fringe field effect을 이용하여 총1번의 러빙처리 만으로 dual domain을 형성하였기 때문에 배향처리를 이용하는 일반 dual domain mode에 비해 제작공정이 간편하고, 기존의 일반 TN(twisted nematic) 모드에 비해 응답속도, 시야각특성등이 매우 뛰어나다는 장점을 가지고 있다. 그리고 한쪽기판은 수직배향, 다른 한쪽기판은 수평배향으로 수평배향면기판을 러빙처리 대신에 광중합법을 이용한 광배향법을 이용하면 프리틸트각을 용이하게 0°를 실현할 수 있으므로 러빙처리를 전혀하지 않는 넌러빙처리법이 가능하다는 이점이 있다. 따라서 DHAN-LCD는 기존의 광시야각 모드로 알려진 여러모드보다도 응답특성이 매우 우수하며 (약 15ms), 전계효과를 이용하여 광시야각특성을 얻을수 있는 획기적인 액정표시장치 이다. 제작공정도 매우 간단하며 신뢰성도 매우 높을 수 있다는 장점을 지니고 있다.
Patent KR-20000056896-A (KR)
Title: Method for driving plasma display panel
Inventor: KANG KYUNG HO
IPC: G09G3/294
Filed: 1999-02-27
Abstract: PURPOSE: A method for driving a plasma display panel is provided to reduce the amount of generation of electromagnetic interference waves without giving an electrical impact to the plasma display panel and driver thereof. CONSTITUTION: In a method for driving a plasma display panel(1), remaining wall charges are erased in the previous sub-field, and then wall charges are formed in a selected pixel region. Subsequently, AC pulses are applied to scanning electrode lines(Y1, Y2,..., Yn-1, Yn) and common electrode lines(X1, X2,...., Xn-1, Xn), arranged in parallel with each other, to generate light at the pixel region where the wall charges are created. These steps are sequentially performed in a unit sub-field. The scanning electrode lines and common electrode lines are grouped into a plurality of groups. The AC pulses are applied to the scanning electrode lines and common electrode lines of each group with a predetermined time lag. Accordingly, the amount of driving current is considerably reduced at the point of time at which the AC pulses are applied to the scanning electrode lines and the common electrode lines, resulting in a decrease in the electromagnetic interference waves without giving an electrical impact to the plasma display panel and driver thereof.
Patent KR-20000016835-A (KR)
Inventor: MA BYONG-IN
IPC: G11B7/00
Filed: 1999-03-13
Abstract: PURPOSE: An apparatus for detecting a servo error is provided, which records and reproduces a disk having first and second headers, an address region, and a synchronizing signal region. CONSTITUTION: The apparatus for detecting a servo error comprises: a reproducing signal generator (62) for generating a reproducing signal containing a sum signal of a radial pair, a sum signal (RF_sum), and a push pull signal (RF_pp); a header region detector (64) for generating a header section signal which indicates a header region from the reproducing signal generated in the reproducing signal generator (62); a first synchronizing signal level detector (66) to be synchronized to the header region signal generated in the header region detector (64) and for detecting the amplitude of the synchronizing signal in a first header; a second synchronizing signal level detector (68) to be synchronized to the header region signal generated in the header region detector (64) and for detecting the amplitude of the synchronizing signal in a second header; and a balance computing unit (70) for computing a balance between the amplitude of the first synchronizing signal and the amplitude of the second synchronizing signal. Thereby, it is possible to stably control the servo and maintain an optimum recording/reproducing state.
Patent KR-20000061026-A (KR)
Inventor: BYUN GUK YEON
IPC: B32B37/00
Filed: 1999-03-23
Abstract: PURPOSE: A device for laminating a composite material and operating method therefor are provided to accurately arrange the fibers composing a composite tape when the composite material is laminated, thereby the composite material has good physical properties. CONSTITUTION: A device for laminating a composite tape comprising a matrix and fibers in a mold comprises: a) a holding member(100) in which a screw for upward and downward movement is vertically positioned at the top in a certain depth and two lateral guide grooves opened to the screw at both sides and being at right angles to each other are formed; b) a goniometer(300) mounted at the top of the holding member at a certain angle; c) an internally opened vertical moving member(200) in the shape of L by crosslinking two bars in which a vertically threaded hole is formed at the crossed part of the two bars for surrounding the exterior part of the screw, multiple holes for penetrating fixing pins are formed at each top of the both bars in a predetermined space for inserting the pins vertically at each top of the both bars, and two guide grooves are formed horizontally in the inner parts of the both bars respectively by a predetermined length for an optional substance to be horizontally inserted from the outside to the inner parts of the both bars and slid therein; d) a first and second springs(230,231) which are inserted horizontally in the inner parts of the both bars of the vertically moving member and fixed at one end to the interior crossed part of the two bars; and e) a first and second moving stands(410,420) horizontally inserted at one end into the two guide grooves of the vertically moving member respectively and connected to each end of the two springs wherein holes for penetrating the fixing pins are formed at both ends.
Patent KR-19990046548-A (KR)
Filed: 1999-03-24
Abstract: 본 발명은 컴퓨터 가요반주기에 관한 것으로, 노래반주와 노래를 부른 가수의 영상을 동기화시켜 출력할 수 있는 제어방법을 제공하기 위한 것이다. 한편 이러한 제어방법은 선곡된 노래에 해당하는 가수 영상 데이터가 있는 곡인지를 검색하는 과정과, 상기 검색과정에서 가수 영상 데이터가 있는 곡일 때 저장매체에서 상기 영상 데이터에 관한 정보를 읽는 과정과, 상기 읽어들인 가수 영상 데이터와미디 데이터를 동기화시키는 과정으로 이루어진다.
Patent KR-20000061650-A (KR)
Inventor: KANG SEOK MAN
IPC: B23P15/00
Filed: 1999-03-29
Abstract: PURPOSE: A method and a device of producing a tube for preventing the change of a content are provided to eliminate a joint on an outer surface of a tube for preventing the transmutation of a content. CONSTITUTION: Power of a motor is transferred to a reducer by a belt and a pulley. The reduced power drives a rotary cutter rotated by a power transmission member so that a tube(200) is cut. In addition, an end where the tube is transferred is sensed by a position sensor and the sensed signal is transferred to a control unit. Thereby, the rotary cutter is rotated 360 degrees by an order of the control unit so that the tube cutter is cut into a certain length and a cutting process is continued.
Patent KR-19990078397-A (KR)
IPC: G09G3/20
Filed: 1999-03-30
Abstract: 평면표시장치는 영상신호원(11,12)으로부터의 영상신호의 수평 블랭킹 기간의 레벨을 전압발생회로(18)로부터의 선택된 전압치로 변경하고, 이 전압을 타이밍 발생회로(15)로부터의 샘플링 클럭으로 샘플링 하여 신호선 구동회로(21)로 래치하고, 주사선 구동회로(22)로부터의 주사신호와 함께 수평표시패널(14) 상에 종횡비에 따라 표시하도록 구성된다.
Patent KR-20000061855-A (KR)
Inventor: JUNG SEONG HO
IPC: H04B1/40
Filed: 1999-03-31
Abstract: PURPOSE: An apparatus for controlling a frequency characteristic of a receiving low-noise amplifier is provided to perform a gain evenness of a receiving frequency band and improve a characteristic of a CDMA intermodulation by adjusting a gain of a wireless frequency low-noise amplifier. CONSTITUTION: A duplexer(100) receives a wireless frequency signal received through an antenna(100) and transmits the received wireless frequency signal to the outside. A low-noise amplifier(200) receives the wireless frequency signal transmitted from the duplexer(100) to removes a noise and amplifies the wireless frequency signal as a predetermined amplifying level. A filter unit(400) receives the signal amplified in the low-noise amplifier(200) and filters the received signal as a desired band signal. A mixer(500) receives a signal transmitted through the filter unit(400) and converts the wireless frequency into an intermediate frequency. A current control unit(300) adjusts a providing amount of a driving current provided to the low-noise amplifier(200) to adjust a frequency characteristic for performing an evenness of the frequency characteristic of a gain amplified in the low-noise amplifier(200).
Patent KR-19990083069-A (KR)
Title: 일회용 체액 흡수성 물품
IPC: A61F13/15
Filed: 1999-04-09
Abstract: 본 발명은 일회용 체액 흡수성 물품에 있어서의 고흡수성 중합체 입자를 효율적으로 사용하는 것을 목적으로 한다. 
     일회용 체액 흡수성 물품의 흡액성 코어(4)에 함유되는 고흡수성의 제1 중합체 입자(13A)가 40 이상의 높은 초기 흡수 속도를 가지며, 제2 중합체 입자(13B)가 5∼20의 낮은 초기 흡수 속도를 갖는다.  제1 중합체 입자(13A)는 코어(4)의 두께의 아래쪽 1/2의 범위에만 분포한다.
Patent KR-19990083169-A (KR)
Title: Ａｃ 방전형 플라즈마 표시 패널 및 동 장치를 구동하는 방법
IPC: G09G3/294
Filed: 1999-04-13
Abstract: 전면 유리 기판 및 배면 유리 기판이 일정한 공간을 사이에 두고 서로 대향하여 배치된다.  방전 기체는 상기 공간 내에 밀봉된다.  공간은 복수의 표시셀 및 복수의 예비 방전셀로 분할된다.  화상을 표시하기 위한 표시 데이터 기입 및 유지 방전은, 예비 방전셀로부터의 예비 방전 효과에 의해 표시셀 내에서 발생된다.  표시셀 전극은 표시셀에서의 방전을 제어한다.  예비 방전셀 내에 방전을 유발하기 위한 한 쌍의 방전 전극이 표시셀 전극과는 독립적으로 제공되고, 표시셀과 독립적으로 구동된다.  예비 방전셀은 그조 및 구동 제어에 따라 표시셀과는 독립적으로 제공되며, 저 구동 주파수를 이용하여 정현파 구동 방법에 의해 미리 방전될 수 있다.
Patent KR-20000066487-A (KR)
Inventor: HAN SEUNG DAE
IPC: A01G9/26
Filed: 1999-04-14
Abstract: PURPOSE: A power supply method for the rail-type deliver apparatus of a vinyl house and its apparatus are provided, to simplify the power connection between a moving static motor and a power supply part and to make the connection region be safe electrically. CONSTITUTION: The method is such that the DC power supply part(6) is connected to the two power passing rods(4,5) set in parallel to the propagation direction of a moving support tower(1); and the power passing rods(4,5) contain a power amplification device and an electrical control circuit, to allow the contact terminals(302,303) of a common control box(3) controlling the operation of a movable static motor(2), to be contact, thereby the DC powder is inputted into the control box(3) through the power passing rods(4,5).
Patent KR-20000067368-A (KR)
Title: Ceramic laundry balls and manufacture thereof
Inventor: MIN GYEONG HO
IPC: C04B35/71
Filed: 1999-04-21
Abstract: PURPOSE: A special ceramic laundry balls having natural composition is provided which has improved washing, antibacterial action, static electricity and water purification due to hydroxyl ion(H3O2)- in the water. CONSTITUTION: The manufacturing method of special ceramic laundry balls comprises the steps of: milling raw materials such as 20-30 wt.% of white porcelain clay, 80-90 wt.% of phyllite; adding 20-25 wt.% of an organic binder; forming and then drying at 30-4 0°C; sintering in an oxidative atmosphere up to 600°C and a reductive atmosphere between 600°C and 1100°C; adding the ceramic balls to an inorganic binder (LPE-964) in a triple electric heating mixer at 50°C for 24 hrs., and then drying.
Patent KR-20000067539-A (KR)
Inventor: KIM GYU HONG
IPC: G11C8/00
Filed: 1999-04-29
Abstract: PURPOSE: A memory logic complex semiconductor device is provided to perform a memory core test easily by applying a multiplexer control signal to a multiplexer in exact synchronization with a CASB latency mode. CONSTITUTION: A memory logic complex semiconductor device comprises the first and second pads(211,212), a multiplexer(221), a multiplexer controller(231) and a memory core(241). The multiplexer(221) receives a plurality of data(Dout1-Doutn) from the memory core(241) and a multiplexer control signal(PQSEL) from the multiplexer controller(231), and selects one of the input data when the multiplexer control signal(PQSEL) is activated. The selected data is output through the first pad(211). The multiplexer controller(231) transfers a multiplexer control signal(QEL) input through the second pad(212) to the multiplexer(221) in synchronization with a CASB latency mode set to the semiconductor device(201).
Patent KR-20000073177-A (KR)
Title: Assembly of drum
Inventor: SIM JAE HUN
IPC: B65D88/06
Filed: 1999-05-07
Abstract: PURPOSE: A drum assembly is provided to block up the transmission of vibration and noise occurring from a drum assembly to the exterior. CONSTITUTION: A stud screw(13) combining a lower drum(2) with a drum base(3) regulates the interval between the lower drum and the drum base in a uniform height(h) against the repulsive force applied between the lower drum and the drum base by employing a spring(12). Rotors(1,2) are combined with the drum base at a certain interval. An annular rubber(11) absorbs the vibration and noise occurring due to the rotating rotors. Thereby, the transfer of the vibration and noise to the drum base is blocked up.
Patent KR-20000074470-A (KR)
Inventor: LEE DEUK HUI
IPC: H01L27/08
Filed: 1999-05-21
Abstract: PURPOSE: A method for manufacturing a semiconductor memory is provided to easily eliminate a thin film evaporated on a peripheral circuit region by using photoresist which is easily evaporated and eliminated. CONSTITUTION: A field oxidation layer is formed on a substrate(1) so that a cell region and a peripheral circuit region are defined and a cell transistor and a transistor are formed in respective regions. An insulating layer(4) is formed on the cell regions and peripheral circuit region, and the insulating layer evaporated on the cell region is dry-etched to form a gate sidewall(5) of the cell transistor. Polycrystalline silicon(6) is evaporated on the entire surface of the resultant structure, and a photoresist pattern is formed on the polycrystalline silicon formed on the peripheral circuit region. Spin-on-glass(SOG) is applied on the cell region and peripheral circuit region, and is planarized to expose the photoresist pattern. The exposed photoresist pattern and the polycrystalline silicon under the photoresist pattern are etched. The SOG remaining on the cell region is eliminated and the polycrystalline silicon under the SOG is planarized, so that a plug connected to a source and a drain of the cell transistor between the gate sidewalls is formed.
Patent KR-20000074756-A (KR)
Inventor: PARK YEONG HYEON
IPC: B66F9/06
Filed: 1999-05-25
Abstract: PURPOSE: Shaped steel of transfer or load are necessary to ship structure fabrication only with four fork lifter-attached device, thereby increasing the productivity and preventing the safety accident. CONSTITUTION: In a running device to run at the constant speed by the electric power generated from the electric power generating device such as an engine, a carrier for transferring shaped steel comprises a lifter, a straight line-shaped fork(16) and a fork rotating cylinder(18). The lifter is operated by a lifter transferring cylinder(12) upward and downward. The lifter transferring cylinder(12) is operated by hydraulic pressure provided from the outside. The fork(16) is mounted at the end portion of the lifter and lifts the shaped steel. The fork rotating cylinder(18) rotates the direction of the fork(16). The lifters of an even number are mounted at the carrier for shape steel. The carrier for transferring shaped steel uses only one device when transferring the shape steel materials, thereby accelerating the flow of goods and improving the productivity.
Patent KR-19990068723-A (KR)
Title: 데이터통신기능을갖는파워어댑터
Filed: 1999-06-15
Abstract: 본 발명은 데이터 통신 기능을 갖는 파워 어댑터에 관한 것으로서, 통신기능을 갖는 퍼스널 컴퓨터로부터 영상, 음성, 문자 데이터를 인가받아 데이터 처리한 후 충전대상 기기의 입출력 포트로 전송하는 데이터 인터페이스부와, 상기 퍼스널 컴퓨터로부터 소정 전원을 인가받아 충전대상 기기에 적합한 DC전원으로 전환시켜주는 DC/DC 컨버터부와, 충전대상 기기의 충전상태를 측정하는 파워 미터부와, 상기 파워 미터부로부터 측정된 아날로그 데이터 신호를 디지털 신호로 변환시켜주는 A/D 컨버터부와, 상기 A/D 컨버터부로부터 변환된 측정 디지털 신호를 인가받아 충전대상 기기의 충전완료 여부를 확인하고 상기 데이터 인터페이스부의 데이터 처리를 제어하는 데이터 콘트롤러부와, 상기 데이터 콘트롤러부를 구동 및 운용하는 프로그램이 저장되어있는 메모리부와, 상기 데이터 콘트롤러부의 제어를 받아 발광 또는 소광되는 충전상태표시 LED부를 구비함으로써 휴대폰, MP3 플레이어 기기 등의 전원 충전시 전원 충전 뿐만아니라 퍼스널 컴퓨터 등의 외부기기와 데이터 통신도 할 수 있어 각종 기기의 전원 충전시에도 계속해서 영상, 음성, 문자 데이터 정보를 전송받을 수 있고 또 사용자가 언제든지 이를 손쉽게 확인해볼 수 있는 효과가 있다.
Patent KR-20000006300-A (KR)
Inventor: SAKAGUCHIKIYOHUMI
IPC: H01L21/762
Filed: 1999-06-18
Abstract: PURPOSE: A semiconductor substrate and a fabrication method are provided to have no defect. CONSTITUTION: The fabrication method comprises the steps of: fabricating a homo-crystalline silicon substrate(9), wherein the homo-crystalline silicon substrate(9) is annealed under a hydrogen atmosphere; implanting an ion to the homo-crystalline silicon substrate(9) to form an ion implantation layer(24) in the homo-crystalline silicon substrate(9); and forming a buried insulation layer(25) in the homo-crystalline silicon substrate(9). After the hydrogen-annealed homo-crystalline silicon substrate is fabricated or before the ion implantation layer is formed, a protection layer(68) is formed on the homo-crystalline silicon substrate. An ion is implanted from a side of the protection layer.
Patent KR-20010003009-A (KR)
Inventor: HWANG JONG YUN
IPC: B66B13/00
Filed: 1999-06-19
Abstract: PURPOSE: An evaporator drain water from an air conditioner in an elevator is provided for an easy installation and a quick response to a call of a passenger by evaporating drain water without complicated drainage. CONSTITUTION: An indoor unit(3) of an air conditioner is mounted on the ceiling panel(1) of an elevator, supported by a strut member(2). Drain water from the indoor unit(3) of the air conditioner falls through a discharge valve in the lower portion of the indoor unit(3). A cover is combined with the upper body of an evaporator(6) on the ceiling panel(1) facing the bottom of the indoor unit(3). The drain water is dropped on a radiation plate through an input hole of the cover. The fallen water on the radiation plate is evaporated by hot wire below the radiation plate. The vapor rises and is discharged into a path of the elevator through vapor drain ports of the cover. Therefore, drain water from the indoor unit(3) is evaporated completely.
Patent KR-20000006403-A (KR)
Inventor: BUSS ROLF
IPC: F02F1/42
Filed: 1999-06-24
Abstract: PURPOSE: A 2-stroke diesel combustion engine is provided to have longitudinal scavenging. CONSTITUTION: A 2-stroke diesel combustion engine having longitudinal scavenging has:one or more than one of cylinders(2) having a piston arranged to reciprocate; an outlet valve(5) discharging the combustion gas through many openings(21) for scavenging to guide the scavenging air into the cylinder; and a piece to leave a portion of the combustion gas produced in the combustion process in the cylinder.
Patent KR-20010003868-A (KR)
Inventor: PARK GI BOK
IPC: G02F1/133
Filed: 1999-06-25
Abstract: PURPOSE: A reflection-type liquid crystal display is provided to prevent drop of a contrast property by reducing a bad effect owing to a fringe effect. CONSTITUTION: The reflection-type liquid crystal display comprises a liquid crystal material(24) which is disposed between a semiconductor substrate(20) and a transparent substrate(22). A common electrode(26) and a pixel electrode(28) are formed on the semiconductor substrate(20) in an in-phase switching mode. A semiconductor integrated circuit(30) is formed on the semiconductor substrate(20) and contains a source(30a), a drain(30b) and a gate electrode(30c). The drain(30b) is connected to an interconnection electrode(30d) which is connected to the pixel electrode(28). A passivation layer(34) is formed on an insulating layer(32), and a reflection layer(34) is formed on the passivation layer(34).
Patent KR-20010004096-A (KR)
Inventor: CHOI GI SIK
IPC: H01L21/312
Filed: 1999-06-28
Abstract: PURPOSE: A method for flattening a semiconductor device is provided to improve the productivity of the semiconductor device by increasing the uniformity of processes. CONSTITUTION: The first interlayer insulation film is formed on a semiconductor substrate formed with a predetermined wire layer. A polishing stop layer is formed on the first interlayer dielectric film. Then, the second interlayer dielectric film is formed on the polishing step layer. After that, a CMP(Chemical Mechanical Polishing) process is carried out until the polishing stop layer is exposed by using slurries which slowly polish the polishing stop layer, thereby flattening the first and second interlayer dielectric films. Then, the polishing stop layer is removed. The first and second interlayer dielectric films are formed by an oxide film.
Patent KR-20010004905-A (KR)
Inventor: BANG JANG HYEOK
IPC: G09G3/32
Filed: 1999-06-30
Abstract: PURPOSE: A TFT-LED display device is provided to display using a LED to decrease the weight and thickness of a panel and assure a sufficient view field angle and reduce the costs of products. CONSTITUTION: The TFT-LED display device comprises a connector(10), a controller(20), a DC/DC converter(30), a modulator(70), a panel(60), a gate drive IC(40) and a data drive IC(50). The connector(10) transfers a control signal and a source voltage(Vdd) to a module. The controller(20) controls the timing of the gate drive IC(40) and data drive IC(50) sing the control signal from the connector(10). The DC/DC converter(30) converts the source voltage(Vdd) of the connector(10) into a drive voltage for the IC(40). The modulator(70) applies a data signal to the data drive IC(50). The panel(60) displays a screen using a TFT and a LED. The gate drive IC(40) and data drive IC(50) apply a voltage to the panel(60).