baber/WOPTO huggingface dataset:
Patent KR-20060046328-A (KR)
Inventor: YOSHIDA MASAHIRO
IPC: H04M1/72469
Filed: 2005-05-31
Abstract: 표시 화면 내에서 환경광에 반응하는 영역과 광원에 반응하는 영역을 구별하고, 광원의 정확한 위치 좌표를 식별하기 위해서, 신호 처리 IC는 각 화소의 계조값에 기초하여, 광빔이 검출된 각 영역에 대해서 표시 화면에 입사한 광원으로부터 생성된 화상 데이터를 분할하고, 각 분할된 영역의 형상을 식별하기 위해서 형상 파라미터를 산출하고, 각 분할된 영역의 위치를 산출하는 표시 장치가 개시되어 있다. 
       
     환경광, 신호 처리 IC, 형상 파라미터, 계조값, 광 검출 수단
Patent KR-20060127375-A (KR)
Title: Method of driving plasma display panel
Inventor: LEE SUNG SU
IPC: G09G3/296
Filed: 2005-06-07
Abstract: A driving method of a plasma display panel is provided to restrict the image quality degradation generated when emission corresponding to gray scale weighted values assigned to respective subfields is not executed, by varying the voltage value of sustain pulse applied to at least one subfield. In a driving method of a plasma display panel comprising plural X electrodes(X) and Y electrodes([Y1:Yn]) arranged in parallel and plural address electrodes arranged across the X and Y electrodes at predetermined intervals to define discharge cells in each crossing region, a unit frame for displaying an image is divided into plural subfields. Each subfield has an address period for selecting the discharge cell and sustain discharge periods(PS[1],PS[Q],PS[R]) for executing a sustain discharge in the selected discharge cell. Sustain pulse having a predetermined pulse voltage is alternately applied to the X and Y electrodes during the sustain discharge periods of the subfields. The sustain pulse applied during the sustain discharge period has a pulse voltage applied to at least one subfield and different from pulse voltages applied to the other subfields.
Patent KR-20060132082-A (KR)
Title: Method for controlling mouse pointer by keypad on portable terminal
Inventor: YANG BYUNG WOO
IPC: H04B1/40
Filed: 2005-06-17
Abstract: A method for controlling a mouse pointer by using a keypad in a portable terminal is provided to partition areas to correspond to the keypad on an LCD(Liquid Crystal Display) and to move the pointer to a corresponding area when a specific button of the keypad is pressed or zoom in an image of a corresponding area, thereby providing a mouse function by using only the keypad. A method for controlling a mouse pointer by using a keypad in a portable terminal comprises the following steps of: displaying partition lines corresponding to the keypad on a display window when a mouse function is selected by a user(101,102); moving the mouse pointer to areas of the partition lines corresponding to a specific pressed button when the specific button of the keypad is pressed after moving the mouse pointer selected by the user(103,105); and zooming in(or out) an image of the area of the partition line corresponding to a specific pressed button when the specific button of the keypad is pressed after zooming in(or out) is selected by the user(107).
Patent KR-20060049644-A (KR)
Inventor: MATSUMOTO MORIO
IPC: G02B7/36
Filed: 2005-06-21
Abstract: 스크린 등의 투사면 상에 화상을 표시시키는 프로젝터에서, 고속 및 고정밀도로 자동 포커스 조정을 수행할 수 있다. 
     프로젝터는 소정의 테스트 패턴을 투사면 상에 투사하는 테스트 패턴 투사부와, 프로젝터의 초점을 이동시키는 포커스 변경부와, 투사된 테스트 패턴을 촬상하여 촬영 화상을 생성하는 촬상부를 포함하고 있다. 또한, 프로젝터는 초점의 이동에 따라 변동하는 촬영 화상의 포커스 상태에 관한 지표값을 산출하는 지표값 산출부와, 지표값을 이용하여 초점이 투사면 상에 맞도록 포커스 조정을 수행하는 포커스 조정부를 포함하고 있다. 소정의 테스트 패턴은 교대로 배치된 서로 농도가 다른 제1 종과 제2 종의 농도 영역을 포함하고 있고, 또한 적어도 제1 종의 농도 영역이 폭이 작은 영역과 폭이 큰 영역을 포함하고 있다. 
       
     포커스 조정, 체크무늬, 패턴, 폴링(polling), 프로젝터
Patent KR-20060133697-A (KR)
Title: Electronic payment settlement service system and method for t-commerce
Inventor: LEE WON SEOK
IPC: G06Q30/06
Filed: 2005-06-21
Abstract: A method for intermediating settlement of T(TV)-commerce, and a system and the method for an electronic settlement service using the same are provided to offer trust to a customer, enable a use institution to save expenses, and enable a settlement institution to directly offer the settlement service to the customer by enabling the customer to directly perform the settlement with the settlement institution. An STB(Set-Top Box)(14) transfers order/settlement institution selection information of the customer to a settlement intermediary server(20), and directly performs the settlement by linking with a settlement server(41). The settlement intermediary server transfers the order information to an order server(31), transfers an order approval and a settlement request received from the order server to the STB, generates/transfers a settlement approval and a settlement session key to the STB by requesting settlement to the settlement server based on the settlement institution selection information. The settlement server advances a settlement process by transferring a settlement application when the STB is connected, and informs the STB, the settlement intermediary server, and the order server of a settlement result.
Patent KR-20070000239-A (KR)
Title: Ips mode liquid crystal display device and method of manufacturing the same
Inventor: CHO HEUNG LYUL
IPC: G02F1/1343
Filed: 2005-06-27
Abstract: An IPS(In-Plane Switching) mode LCD and a method for manufacturing the same are provided to greatly decrease the widths of a common electrode and a pixel electrode, by surrounding a patterned insulating layer with an electrode layer and then etching an upper portion of the electrode layer. A first insulating layer(110) having a predetermined pattern is formed on a substrate(100). An electrode layer is formed to surround the first insulting layer. A second insulating layer is formed on the resultant substrate including the electrode layer. The second insulating layer is ashed to expose an upper surface of the electrode layer. The exposed electrode layer is etched to form common electrodes(200a) and pixel electrodes(200b) in parallel with one another. The common and pixel electrodes are disposed between the first insulating layer and the second insulating layer.
Patent KR-20070002303-A (KR)
Title: Semi-transparent type liquid crystal display and method for fabricating the same
Inventor: KANG WON SEOK
IPC: G02F1/1335
Filed: 2005-06-30
Abstract: A transflective LCD and a manufacturing method thereof are provided to reduce an aperture decrease occurring while forming a hole of a transmissive part by using a white buffer to form a step for making a cell gap different at a reflective part and the transmissive part at a color filter substrate. A color filter substrate(A) includes a first transparent insulating substrate(100), a black matrix(110) formed on the first transparent insulating substrate, a white buffer(150) covering the black matrix, a white hole(120) formed on the white buffer not to overlap the black matrix, a color filter(130) formed on the white buffer, encompassing the white hole and covering the white buffer, and a common electrode(140) formed on the color filter. An array substrate(C) includes a second transparent insulating substrate(200) facing the first transparent insulating substrate at a predetermined interval, a thin film transistor device(TFT) formed at each pixel on the second transparent insulating substrate, a reflective pate(280) formed on the thin film transistor device, and a transmissive part(T) formed in a region which does not overlap the thin film transistor device. A liquid crystal layer(B) is filled between the color filter substrate and the array substrate. The white hole is exposed toward the liquid crystal layer, the white buffer is formed in a region corresponding to the reflective plate, and the color filter has a step at a position corresponding to the transmissive part.
Patent KR-20070002698-A (KR)
Title: Method for forming isolation film of semiconductor device
Inventor: SONG MYUNG HWAN
IPC: H01L21/76
Filed: 2005-06-30
Abstract: A method for forming an isolation layer of a semiconductor device is provided to restrain the generation of HEIP(Hot Electron Induced Punchthrough) and to improve gap-fill characteristics. A pad oxide layer and a pad nitride are formed on a semiconductor substrate(100). A trench(140) is formed within an isolation region by performing etching on the resultant structure. A sidewall oxide layer(150) is formed on the resultant structure. A liner nitride layer(160) and a polysilicon layer are formed on the sidewall oxide layer. An etch back process is performed on the polysilicon layer and the liner nitride layer until the sidewall oxide layer of the trench is exposed to the outside. The polysilicon layer of the trench is oxidized by annealing. An isolation layer for filling the trench is formed thereon.
Patent KR-20070003293-A (KR)
Title: Method for forming electrodes of a planar light source device, planar light source device manufactured by using the method, and display device provided with the same
Inventor: PARK HAE IL
IPC: H01J65/04
Filed: 2005-07-01
Abstract: A method for forming electrodes of a planar light source device, a planar light source device manufactured by using the same method, and a display device provided with the same device are provided to form readily the electrodes by using an electroless plating method. A dipping process is performed to dip channel ends(C) of a planar light source device(10) into a first solution in order to form electroless plating seeds on outer surfaces of the channel ends. A heating process is performed to draw the planar light source device from the first solution and to heat the planar light source device. The planar light source device is dipped into a second solution. An electrode(14) is formed by using an electroless plating method.
Patent KR-20070003332-A (KR)
Title: Game production system and method which uses script language
Inventor: KIM JEONG JU
IPC: G06F17/00
Filed: 2005-07-01
Abstract: A system and a method for making a game with a script language are provided to enable a programmer to make the game in a script level by using the script language respectively matched with all functions related to game making and guarantee a visual rendering process optimized to intention of the programmer by processing rendering with render context. An inputting module(110) inputs the first object(140) among the objects storing implementation condition information to the render context. A converting module(120) makes the inputting module input the render context converted in the first object based on the implementation condition information to the second object(150) which is an upper level. A making tool module(130) performs the rendering process for visual related to the render context by using the converted render context. Each module is operated based on the script language matched with an object oriented programming language. The object performs a conversion process for the render context to satisfy the implementation condition information at a selected level.
Patent KR-20070010911-A (KR)
Title: Stimulator for spot in the body suitable for acupuncture
Inventor: SONG SANG OCK
IPC: A61N1/32
Filed: 2005-07-20
Abstract: A personal acupuncture stimuli system for eye is provided to improve blood circulation and to facilitate metabolism by stimulating acupuncture spots with low frequency pulse through an ear acupuncture stimulator. The personal acupuncture stimuli system for eye includes a key portion(1), a display portion(2), a control portion(3), a PWM low frequency generator(4), an amplifying output portion(5) and an ear acupuncture stimulator(10). The control portion(3) controls to supply low frequency pulse to the ear acupuncture stimulator(10) according to the input of the key portion(1). The PWM low frequency generator(4) generates and outputs low frequency pulse whose pulse width is converted according to the control of the control portion(3).
Patent KR-20070011691-A (KR)
Title: Electrical library management system based on ad-hoc network
Inventor: YANG EUN JU
IPC: H04W40/02
Filed: 2005-07-21
Abstract: A system for operating an electronic library using the ad-hoc network is provided to solve a power consumption problem of a mobile terminal according to data transfer without respect to intention of a user by using fixed computers as a hop and enable the user to quickly borrow an electronic book by connecting to the electronic library in a school with the mobile terminal. A database server(102) stores a book list and the electronic books. An electronic library server(100) transmits the electronic book of the database server, stores/manages a borrowing condition, and includes a wireless communication module for performing wireless communication. Each hop(110-115) includes a wireless communication module for performing the wireless communication with the management server. The portable terminal(120) receives the requested electronic book by connecting to the management server through the hops and displays the received electronic book. The hop provides a communication route between the connected portable terminal and the management server.
Patent KR-20070011922-A (KR)
Title: Plasma display device
Inventor: KIM YEUNG KI
IPC: H01J11/46
Filed: 2005-07-22
Abstract: A plasma display device is provided to secure a grounding path of a printed circuit board installed on a chassis base formed of a nonmetallic material by improving a structure of the chassis base. A plasma display device includes a plasma display panel(110) for displaying images, a chassis base(140) installed at a backside of the plasma display panel in order to support the plasma display panel, and a printed circuit board(150) installed at a backside of the chassis base in order to be electrically connected with the plasma display panel. The chassis base is formed of a nonmetallic material. A grounding thin film(160) is formed on a front surface of the chassis base. A combination member is connected with a grounding part of the printed circuit board and the grounding thin film in order to secure a grounding path.
Patent KR-20070015300-A (KR)
Title: Hall sensor cable mounting structure of washing machine
Inventor: KIM HYO JIN
IPC: D06F37/40
Filed: 2005-07-30
Abstract: A hall sensor wire mounting structure of a washing machine is provided to prevent wire breakage caused by a contact with a wire of a hall sensor in rotation of a rotor. A hall sensor wire mounting structure of a washing machine comprises: a tub installed in a cabinet; a drum installed in the tub; a stator mounted at the rear side of the tub; a motor formed with a rotor rotated by the stator to rotate the drum; a hall sensor installed at the stator and connected with a main controller unit by an electric wire(160); and a fixing tool(200) formed at the tub to fix the electric wire so as to prevent the wire from being contacted with the rotor in rotation of the rotor. The fixing tool has first and second bosses(204,208) projected at the rear lower side of the tub at predetermined intervals. The electric wire of the hall sensor is fitted between the first and second bosses.
Patent KR-20070015338-A (KR)
Title: Apparatus for storing phone number by using display of mobile terminal and calling method using the apparatus
Inventor: EUN HAE YOUNG
IPC: H04B1/40
Filed: 2005-07-30
Abstract: An apparatus for storing phone numbers by using the display of a mobile terminal and a calling method using the apparatus are provided to enable a user to select images corresponding to the phone numbers, which the user wants to call, when attempting a call by storing and displaying visual images corresponding to the phone numbers, thereby removing inconvenience that the user has to additionally memorize phone numbers and shortcuts corresponding to the phone numbers. An apparatus for storing phone numbers by using the display(2) of a mobile terminal comprises the followings: a memory(1) which stores images, characters, symbols, or these combination corresponding to each phone number, wherein the memory(1) stores the images, the characters, the symbols, or the these combination according to pre-assigned groups; and the display(2) which displays the images, the characters, the symbols, or the these combination, wherein the display(2) is realized with a touch pad method in the main display of the mobile terminal.
Patent KR-20070016276-A (KR)
IPC: H01L21/28
Filed: 2005-08-02
Abstract: 라인 타입 패턴 형성 방법에 있어서, 기판 상에 제1방향으로 연장되고 제1간격을 갖는 평행한 직선들 상에 각각 배치된 콘택 영역들을 번갈아 노출시키는 제1개구부를 갖는 층간 절연막 패턴을 형성한다. 제1개구부를 매립하는 콘택 플러그들을 형성한다. 콘택 플러그들과 연결되고, 콘택 플러그들 사이의 층간 절연막 패턴 부분들을 노출시키면서 제1방향과 실질적으로 수직하는 제2방향으로 연장되며, 제1간격보다 넓은 제2간격으로 제1도전 패턴들을 형성한다. 층간 절연막 패턴을 부분적으로 식각함으로써 제1도전 패턴들 사이의 콘택 영역을 노출시키는 제2개구부를 형성한다. 제2개구부 내부에 매립되며 제1도전 패턴의 단면과 실질적으로 동일한 단면적을 가지면서 제2방향으로 연장되는 제2도전 패턴을 형성한다. 상기한 방법에 의하면, 미세한 간격을 갖는 라인 형상의 도전 패턴을 브릿지(bridge) 또는 낫칭(notching)이 없이 형성할 수 있다.
Patent KR-20070018628-A (KR)
IPC: A61F5/34
Filed: 2005-08-10
Abstract: 가. 청구범위에 기재된 발명이 속하는 기술분야. 
     본 발명은 디스크의 보호 및 치료를 위하여 사용되는 상하로 견인되어지는 허리벨트에 관한 것으로, 특히 공기의 주입에 의하여 상하로 팽창되면서 늘어나게 되는 디스크벨트를 장시간 착용할 경우에 늘어나면서 팽창되어지는 부분의 압박에 의하여 피부에 손상이 발생되는 것을 방지하기 위한 것이다. 
     나. 발명이 해결하려는 기술적 과제. 
     통상의 공기주입에 의하여 상하로 늘어나면서 팽창되어지는 디스크벨트는 공기의 주입에 의하여 팽창되어지는 부분이 팽창되어지면서 피부를 압박하게 됨으로 장시간 착용할 경우에는 이렇게 압박되어진 부분에는 혈액순환이 용이치 아니함으로 피부질환 등의 발생은 물론 또 다른 부차적인 건강 장애를 끼치게 되는 문제가 발생될 소지가 있는 것이다. 
     다. 발명의 해결방법의 요지. 
     따라서 상하로 늘어나면서 팽창되어지는 허리벨트의 내측면에 전체면이 덮여지도록 커버지를 형성토록 하고, 상기 커버지는 상하로 늘어나면서 팽창될 경우에 어느 정도 팽창되어질 수 있는 재질을 사용토록 함으로서 커버지의 팽창에 의하여 공기주입에 의하여 팽창되어지는 부분과 분리되어지도록 함으로서 공기주입에 의하여 팽창되어지는 부분에 의한 피부의 압박을 해소하게 된 것이다. 
            라. 발명의 중요한 용도. 
            디스크벨트
Patent KR-20050088964-A (KR)
Inventor: OH ZHOU XI
IPC: C04B14/04
Filed: 2005-08-16
Abstract: 본 발명은 황토를 이용하여 시멘트, 대체 레미탈을 친환경 소재인 황토로 새로운 레미탈을 개발하여 황토의 효능과 효과를 직접 피부에 닿는 주거문화의 혁신적 재구성의 황토 레미탈에 대한 것이다. 
     본 발명에 따르면 황토,마사토,시멘트,모래,섬유 첨가물로 동식물 유지, 식물성 분말, 염, 염색체를 포함하여 이루어지며 상기 성분들을 혼합하고 이에 황토와 식물성 분말에 물을 넣고 가열한 다음 건조 시간을 거쳐 2차 첨가물인 동식물유지를 가열 건조된 제조물을 분쇄기에 넣고 100밀도 분말을 특징으로 하는 황토를 이용한 레미탈이 제공 되는데 본 발명에 의하면 황토 중량부 25-35％ 마사토 중량부15-25％ 모래 중량부 15-25％ 시멘트 중량부 16-26％첨가제로 동식물 유지와 식물성 분말과 소량의 섬유, 염 ,염색제로 혼합하여 이루어진 것을 특징으로 하는데 황토와 마사토를 주원부재료로 사용함은 마사토는 통풍의 효과적인 물 체적 성질이 있어 이를 생태계의 도로포장에 이용되고 있고 화강암이 풍화작용에 의해 흙 돌의 물 체성 변화로 본 발명의 레미탈 주원부 재료로 이용하는 것은 풍화작용의 마사토 성분 중 흙 성분의 마사토 상기 혼합물과 본 개발 물로 이루어 졌는데 벽체의 미장이나 바닥면의 미장 처리 후 매끄러움이 표면에 황토 미세 분말과 함께 표출되어 굳게 되었을 시 건축물에 이용되는 표면처리 후의 미려함을 나타내게 되며 황토의 특징인 공기정화를 마사토의 통풍작용에 의하여 더욱더 황토의 효능을 효과 적으로 나타내게 되며 강도를 부여 시키는 효과도 가지게 된다.
Patent KR-20050088275-A (KR)
Inventor: INOUE NORIHIDE
IPC: C08L23/20
Filed: 2005-08-16
Abstract: 본 발명은 우수한 밀봉성과 박리용이성(easy peel)을 달성할 수 있는 용기를 얻을 수 있는 적층체 및 실란트용 수지 조성물을 제공한다.  
     a) 본 발명의 실란트용 수지 조성물은, 밀도가 0.900 내지 0.960 g/cm 3 이고, MFR(190 ℃)이 0.1 내지 70 g/10 분인 에틸렌계 중합체(A-a) 10 내지 70 중량％, 프로필렌계 중합체(B-a) 10 내지 80 중량％ 및 부텐계 중합체(C-a) 10 내지 70 중량％를 포함한다.  본 발명의 적층체는, 이 수지 조성물로 이루어지는 층의 적어도 한쪽면에 프로필렌 랜덤 공중합체로 이루어지는 층이 인접하고 있다.  본 발명의 용기는 이러한 적층체를 사용하여 형성된다. 
     b) 본 발명의 실란트용 수지 조성물은, 밀도가 0.850 내지 0.900 g/cm 3 이고, 190 ℃에서 측정한 용융 유속(MFR-A)이 0.1 내지 10 g/10 분인 에틸렌ㆍα-올레핀 공중합체(A-b) 10 내지 70 중량％, 230 ℃에서 측정한 용융 유속(MFR-B)이 0.5 내지 100 g/10 분의 범위이고, MFR-B와 MFR-A와의 비(MFR-B/MFR-A)가 3 이상인 프로필렌계 중합체(B-b) 10 내지 80 중량％, 밀도가 0.900 내지 0.960 g/cm 3 인 에틸렌계 중합체(C-b) 0 내지 50 중량％를 포함한다.  이 수지 조성물로부터 적층체가 얻어지고, 이 적층체로부터 얻어지는 용기는 박리용이성을 갖는 용기로서 바람직하다. 
     본 발명에 따르면, 밀봉성 및 열실링성을 겸비한 적층체, 또한 이 적층체를 사용한 박리용이성 용기의 제조를 가능하게 하는 실란트용 수지 조성물, 그 적층체 및 그 적층체로부터 얻어지는 용기를 제공할 수 있다.  상기 적층체를 사용함으로써 밀봉성과 박리용이성과의 밸런스가 우수한 용기가 얻어지고, 식품 포장용 용기로서 바람직하다.
Patent KR-20070023870-A (KR)
Title: Robot arm of semiconductor device manufacturing equipment
Inventor: HEO IN WOOK
IPC: H01L21/68
Filed: 2005-08-25
Abstract: A robot arm of semiconductor device manufacturing equipment is provided to prevent collision between the robot arm and a wafer and to minimize wafer loss by using sensors arranged at a tip unit of the robot arm. A robot arm(100) is comprised of a robot arm body and wafer detection sensors(102,104). The robot arm body transfers a wafer(106) mounted in a cassette to an inner of a process chamber and the wafer of the inner of the process chamber to an inner of the cassette. The wafer detection sensors are formed at a tip unit of the robot arm body to detect proximity of the wafer. The wafer detection sensors are a proximity magnetic sensor.
Patent KR-20070024234-A (KR)
Title: Liquid crystal display device and method for manufacturing the same
Inventor: NAM SEUNG HEE
IPC: G02F1/136
Filed: 2005-08-26
Abstract: A liquid crystal display device and a fabricating method thereof are provided to repair on-spots generated by conductive particles between upper and lower substrates by forming micro holes at corresponding positions and filling light shielding substances to bottoms of the micro holes, thereby improving visibility. A liquid crystal display device includes first and second substrates facing each other and defined with a plurality of pixel areas at corresponding portions, a plurality of pixel electrodes formed on the pixel areas of the first substrate with a distance from each other, and common electrodes formed on the entire surface of the second substrate. A liquid crystal layer is positioned between the substrates. Some of the pixel electrodes, on which conductive particles(51) remain, have pixel holes formed around the conductive particles by removing the pixel electrodes by a predetermined width. Micro holes(60) are defined on a rear surface of at least one(50) of the substrates at positions corresponding to the conductive particles, and have light shield substance layers(61) formed therein. The pixel electrodes, on which the conductive particles remain, are divided into transparent electrode patterns(56b) in the pixel electrode holes and pixel electrode patterns(57) outside the pixel electrode holes.
Patent KR-20070025022-A (KR)
Title: Work-coil for a heat treatment with high frequency
Inventor: OH JONG HAN
IPC: C21D9/60
Filed: 2005-08-31
Abstract: A work coil for high frequency heat treatment which can conduct a heating process and a rapid cooling process at the same time when performing a high frequency heat treatment operation on a pipe shaped workpiece, and can carry out a rapid cooling process at an inner side and an outer side of the workpiece at the same time is provided. A work coil for high frequency heat treatment comprises an electrode part(10) comprising a first electrode part and a second electrode part respectively connected to two terminals of a high frequency oscillator; a coil part(20) which is formed as a circular coil such that two terminals of the circular coil are connected to the first and second electrode parts to heat a workpiece; a circular outer cooling part(30) which is formed at one side part of the circular coil and injects cooling water through a plurality of second cooling water injection ports; a connection part(40) for connecting and fixing the circular coil of the coil part and the outer cooling part; and a circular inner cooling part(50) which is formed on the same plane as the outer cooling part in a state that the circular inner cooling part has the same central axis as the outer cooling part, and which injects cooling water through a plurality of third cooling water injection ports.
Patent KR-20070025686-A (KR)
Title: Lithium rechargeable battery
Inventor: KIM GIL HO
IPC: H01M4/02
Filed: 2005-09-05
Abstract: Provided is a lithium secondary battery, which prevents electrode active materials from being separated from electrode plate by reducing pressure pressing an electrode active layer caused by the end of a separator. The lithium secondary battery comprises: a jelly roll type electrode assembly(200) including a first electrode plate(210) and a second electrode plate(230) disposed opposite to each other, and separators(220a,220b) interposed between the first electrode plate and the second electrode plate; a casing for housing the electrode assembly; and a cap assembly for sealing the casing, wherein the separator extends beyond the external ends of the first electrode plate and the second electrode plates.