baber/WOPTO huggingface dataset:
Patent KR-20000048270-A (KR)
Inventor: LEE KYUN SOO
IPC: G03F7/027
Filed: 1999-12-21
Abstract: PURPOSE: A crosslinker having 2 or more aldehyde group for photoresist and a method for the formation of negative photoresist pattern are provided. Also the photoresist composition is provided which is containing the crosslinker, photoresist copolymer, photoacid generator and organic solvent. CONSTITUTION: A crosslinker has 2 or more aldehyde proup, in particular, compound represented by the following formular 1 is suitable, wherein, R' is aliphatic alkyl or alicyclic alkyl of C1-C8. The photoresist copolymer is represented by the following formular 4, wherein, R1 is -(CH2)p-OH or -COO-(CH2)q-OH, R2 is t-butyl, tetrahydropyranyl, ethoxyehtyl, acethoxyethyl or acethoxymethyl, m and n is independentyl 1 or 2, p is integer of 1-5, q is integer of 1-3, w, x and y is polymerization ratio of each copolymer. The negative photoresist composition comprises photoresist copolymer containing alicyclic compound having hydroxide group, crosslinker containing aldehyde group, photoacid generator and organic solvent.
Patent KR-20010057410-A (KR)
Inventor: EOM HO SEOP
IPC: A01K61/00
Filed: 1999-12-23
Abstract: PURPOSE: A steel fishing bank having an artificial seaweeds is provided to reinforce a role thereof as the refuge of small fish in shallow water as well as deep water. CONSTITUTION: The steel fishing bank(1) installed under the sea for composing marine resources comprises a fishing bank member(50) immersed in the sea, and an artificial seaweeds(60). In the sun-shining shallow water, the artificial seaweeds having spores ensuring the early raising of photosynthetic seaweeds are attached to the fishing bank. In the dark deep water, the artificial seaweeds not requiring photosynthetic reaction are attached to the fishing bank. The artificial seaweeds are constructed by installing a seaweeds installation mount(10) of expanded metal or lattice typed structure along an inner space portion(20), an upper end portion(30), and a head portion of the fishing bank member. The lower end of the artificial seaweeds are connected to the mount.
Patent KR-20010058047-A (KR)
Inventor: SON YOUNG SUK
IPC: G07F11/00
Filed: 1999-12-23
Abstract: PURPOSE: An electric appliance vending machine for conveniently providing various kinds of bread to consumers at a site adjacent to one's residence in order to meet various tastes of consumers. CONSTITUTION: When a consumer pushes a selection button, a withdrawing means (18) is rotated so that a plate (22) installed movably at the lower part of an electric appliance receiving chamber (26) for preventing discharge of electric appliance is opened. Right after discharging electric appliance corresponding to cash input, a solenoid valve (21) regulates an interrupter (24) to exactly control the number of electric appliance to be vented. In the case that the bottom side of a casing (25) is closed with upwardly drawing the plate (22), the solenoid valve operated by electric force draws the interrupter so that electric appliance is placed between the interrupter (24) and the plate (22) for the next vent.
Patent KR-20010060444-A (KR)
Title: Method for managing neighbor list in mobile communication system
Inventor: HWANG SEONG JUN
IPC: H04B7/26
Filed: 1999-12-27
Abstract: PURPOSE: A method for managing a neighbor list in a mobile communication system is provided to remove an error and a symmetry inconsistency of the neighbor list. CONSTITUTION: If the first base station information is added to a neighbor list of the second base station, a system reads the neighbor list of the second base station from a database of a BSM(Base Station Management), and displays the neighbor list. The system displays an input window when an added button is inputted, and receives information of fields except for fields storing fixed information on the first base station. The system receives the information, and uploads the fixed information from a corresponding relation when a confirming key is inputted, then displays data for the mode fields of the first base station. The system stores the information for the base station in an added call list in order to modify the neighbor list of the first base station.
Patent KR-20010061538-A (KR)
Inventor: HUH GANG SU
IPC: H03H11/04
Filed: 1999-12-28
Abstract: PURPOSE: A synchronization-enabling band pass filter is provided to reduce the insertion loss and to improve the transfer characteristics of receiving signal using pin diodes and a condenser. CONSTITUTION: In the synchronization-enabling band pass filter, a condenser(C13), being a synchronization element, is connected between the input terminal and the output terminal of a high frequency signal. Pin diodes(CR11,CR12) are connected in parallel with the condenser(C13). Resistors(R13,R14) are connected in parallel to supply the pin diodes(CR11,CR12) with reversed voltage. A current path is connected to the ground via the pin diodes(CR11,CR12) when the pin diodes(CR11,CR12) are given non-reversed bias voltage.
Patent KR-20010061556-A (KR)
Inventor: PARK GYE SUN
IPC: H01L27/108
Filed: 1999-12-28
Abstract: PURPOSE: A method for manufacturing a semiconductor device is to prevent a punch through of a barrier nitride layer in forming a contact plug for a charge storage electrode. CONSTITUTION: A bit line(31) is formed on a lower layer(30). The bit line includes a nitride layer(32) and a nitride layer spacer(33). An interlayer dielectric(34) and the first sacrificial oxide layer(35) are formed on the entire structure. A contact hole for a charge storage electrode is formed by selectively etching the interlayer dielectric and the first sacrificial oxide layer. A polysilicon layer is deposited on the entire structure to form a contact plug for a charge storage electrode. A polysilicon plug is formed by etching back the polysilicon layer. A barrier nitride(37) is deposited on the entire structure to prevent a crack in a sequent step. The second sacrificial oxide layer(38) is deposited on the entire structure. After selectively etching the second sacrificial oxide layer, the exposed barrier nitride layer is removed.
Patent KR-20010066012-A (KR)
Title: Heat block for manufacturing semiconductor package
Inventor: KIM SONG HAK
IPC: H01L23/36
Filed: 1999-12-31
Abstract: PURPOSE: A heat block for manufacturing a semiconductor package is to increase a contact size of the bottom surface in a chip top plate of a lead frame by molding a slot hole in a large size, thereby reducing an oxidation of the lead frame. CONSTITUTION: In a heat block(10a), a chip top plate is installed in a groove(18). A vacuum hole(12) is formed around the center of the groove. A slot hole(14a) is extended to four directions, and the chip top plate is fixed vacuously. In order to increase a size of the slot hole of the heat block, the slot hole is extended around the center of the vacuum hole. Simultaneously, the extended end terminal is extended along a side. The slot hole is formed in a digged shape around the vacuum hole. The slot hole is formed in a digged shape at the groove spaced apart from the vacuum hole by a predetermined distance.
Patent KR-20000023732-A (KR)
Inventor: PAN GUOXI
IPC: B23K35/368
Filed: 1999-01-12
Abstract: PURPOSE: A method for producing a wire having FLUX of high hardness and abrasion resistance, especially a welding wire for repairing and welding a cool roll, is provided. CONSTITUTION: A wire having flux contains 1 to 10% of molybdenum, 1 to 10% of tungsten, 1 to 10% of graphite, 1-7% of nickel, 2 to 10% of vanadium, 20 to 40% of chrome, 5 to 15% of Na2SiF6, 1 to 10% of niobium, 10 to 25% of boron, 2 to 10% of silica sand and 1-8% of rare earth oxide. The components are ground to powder and fully agitated. Then the powder is put on 0.25 to 0.6mm of a steel strip. An extruder extrudes the steel strip to a wire and a drawer draws the steel strip so that the steel strip becomes a wire having flux of high hardness and abrasion resistance.
Patent KR-20000030126-A (KR)
Title: Tamper-evident overcap
Inventor: BECK JAMES M
IPC: B65D41/48
Filed: 1997-09-10
Abstract: PURPOSE: A tamper-evident over cap is provided to be enhanced in a manner that is of virtually no increased cost, and yet which provides a significant, highly visible indication to the user, above and beyond the mere absence of the over cap. CONSTITUTION: A tamper-evident cap and over cap including a cap (12) with an upstanding cap portion and a lower base (22), the base defining a circumferential channel (20). An over cap (14) is positioned to enclose the upstanding cap portion, with the over cap carrying a circumferential projection of skirt (18) permanently retained in the circumferential channel, typically by force-fit. A frangible line of weakness (16) permits separation of the over cap and the circumferential projection. At least the circumferential projection, and typically also the over cap, are of a color that contrasts with the color of the cap, so that, upon removal of the cap, the remaining edge (26) of the circumferential projection gives an indication that the over cap has been removed.
Patent KR-20000068930-A (KR)
Filed: 1998-02-12
Abstract: 본 발명은 하기 화학식 (II) 의 N-치환 글리포세이트를 함유하는 용액을 희금속 촉매와 접촉시키고,  산소를 용액에 도입시키는 것을 특징으로하는 하기 화학식 (I) 을 갖는 조성물의 제조방법에 관한 것이다 : 
     [화학식 I] 
     
       
     
     [화학식 II] 
     
       
     
     (식중, R 1 및 R 2 는 독립적으로 수소, 할로겐, -PO 3 H 2 , -SO 3 H 2 , -NO 2 , 또는 -CO 2 H 외의 치환된 또는 비치환된 히드로카르빌이고; R 3 , R 4 및 R 5 는 독립적으로 수소, 치환된 또는 비치환된 히드로카르빌, 또는 작물학적으로 허용가능한 양이온이다). 
     본 발명은 또한 표면상에 소수성 전기활성 분자 종을 갖는 희금속을 함유하는 산화 촉매에 관한 것이다.
Patent KR-20000070938-A (KR)
Title: 전자부품 실장방법 및 장치
IPC: H05K13/04
Filed: 1998-02-16
Abstract: 본 발명은 생산성을 향상시키기 위해 전자부품을 효과적으로 공급 및 운송되는 전자부품의 실장방법과 실장장치를 제공한다. 트레이 반출수단(6)은 전자부품(2)을 수용하는 트레이(3)를 부품 공급부(4)로부터 주어진 픽업위치로 반출하는 부품 공급부(4)에 위치되며, 여기에서 전자부품(2)은 운송 메커니즘(11)에 의해 트레이 반출수단(6)의 반출아암(7)상에 배치된 임시홀더(8)에 운송된다. 실장헤드(5)는 복수의 실장노즐(5a)를 구비하며, 이 실장노즐로 실장헤드(5)는 임시홀더(8)에 정렬된 수개의 전자부품을 한번에 픽업하여 이들을 규정의 위치에 적재하고 위치결정하여 회로기판(1)에 실장한다.
Patent KR-20000076172-A (KR)
Title: 반응사출성형된 폴리우레탄을 위한 후경화처리
IPC: B29C35/08
Filed: 1998-03-10
Abstract: 본 발명은 
     반응사출성형된 폴리우레탄, 폴리우레탄/우레아 또는 폴리우레아 중합체를 충분한 양의 적외선 에너지에 노출시켜 중합체의 온도를 180℃ 이상까지 증가시키는 단계; 및 이어서 
     중합체의 온도를 충분한 시간 동안 상기 온도에서 또는 그보다 높은 온도에서 유지하여 ASTM D-3029를 사용하여 측정되는 가드너 충격성을, 환류 오븐 안에서 동일한 시간 동안 동일한 온도까지 가열되어 이 온도에서 유지된 동일한 중합체와 비교하였을 때 증가시키는 단계 
     를 포함하는, 반응사출성형된 폴리우레탄, 폴리우레탄/우레아 및 폴리우레아 중합체를 처리하는 방법에 관한 것이다. 
     본 발명은 충격, 열 처짐 및 열 변형 온도 특성에 있어서 현저한 향상을 가져오고 따라서 특히 대량 생산 컨베이어를 사용한 신속한 부품 제조에 특히 적절하고 "E-코트" 공정과 같은 늦게 고온 과정에 도입된 부품 제조에 매우 적절하다.
Patent KR-20000076370-A (KR)
IPC: B60N2/90
Filed: 1998-02-27
Abstract: The apparatus stimulates the muscles of a seat occupant. The apparatus includes a flexible supporting element adapted to be coupled to a seat for movement relative thereto and driving means for automatically and repeatedly moving the flexible supporting element through an adjustment cycle. The adjustment cycle includes a plurality of first incremental movements in a first direction followed by a plurality of second incremental movements in a second direction. Each of the first and second incremental movements are separated by a first time interval. The method relieves muscle fatigue in a seat occupant by incrementally adjusting the curvature of the supporting element and generally includes the steps of placing a supporting element in a first position operatively engaging a muscle of the seat occupant wherein the first position defines a first degree of curvature of the supporting element. The method further includes automatically adjusting the curvature of the supporting element according to an adjustment cycle that includes maintaining the first degree of curvature for a first time period, increasing the degree of curvature a first amount after the first time period to define a second degree of curvature, maintaining the second degree of curvature for a second time period, and decreasing the degree of curvature of the supporting element a second amount after the second time period to define a third degree of curvature wherein the first time period is equal to the second time period.
Patent KR-20010020172-A (KR)
Title: 2-oxoimidazole derivatives
IPC: C07D401/04
Filed: 1998-05-27
Abstract: The present invention relates to a compound represented by Formula ÄIÜ <CHEM>  Äwherein <CHEM> represents an aromatic carbo- or heterocyclic ring which may have a substituent; Cy represents a mono-, bi- or tricyclic aliphatic carbocyclic group having 3 to 20 carbon atoms, which may have a substituent; <CHEM> represents a mono- or bicyclic aliphatic nitrogen-containing heterocyclic group having 3 to 14 carbon atoms, which may have a substituent; R<1> represents a hydrogen atom, a lower alkenyl group, a lower alkynyl group, a cyclo(lower alkyl) group, an amino group, a lower alkylamino group, a di(lower alkyl)amino group, a hydroxyl group, a lower alkoxy group, a carboxyl group, a lower alkoxycarbonyl group, a carbamoyl group, a lower alkylcarbamoyl group or a di(lower alkyl)carbamoyl group, or a lower alkyl group which may have a substituent; and R <2> represents a hydrogen atom or a lower alkyl groupÜ, a salt or ester thereof, a production process for the same, and an analgesic, a reliever against tolerance to a narcotic analgesic represented by morphine, a reliever against dependence on a narcotic analgesic represented by morphine, an analgesic enhancer, an antiobestic, a drug for ameliorating brain function, a remedy for schizophrenia, a remedy for Parkinsonism, a remedy for chorea, an antidepressant, a remedy for diabetes insipidus, a remedy for polyuria, or a remedy for hypotension, comprising an effective ingredient of the same.
Patent KR-20010012500-A (KR)
Title: 알콜 또는 알데하이드로부터 카복실산을 제조하는 촉매산화 방법
Filed: 1997-05-14
Abstract: 본 발명은 염기, 촉매량의 구리염 및 적당한 리간드, 임의로 첨가제의 존재하에 화학식 R 1 CH 2 OH의 알콜 또는 화학식 R 1 CHO의 알데하이드를 산소와 반응시키는 것을 포함하는 화학식 R 1 CO 2 H(식중, R 1 은 임의 치환된 아릴, 임의 치환된 헤테로아릴 또는 아릴로 임의 치환된 알케닐임)의 카복실산 제조 방법에 관한다.
Patent KR-20010013640-A (KR)
Title: Catalytic hydrogenation of nitrobenzene to 4-aminodiphenylamine in the presence of a hydroxyl compound and a solvent
IPC: C07B61/00
Filed: 1998-06-05
Abstract: This invention provides a method for preparing 4-ADPA by charging nitrobenzene into a reaction zone under hydrogen pressure in the presence of a strong organic base and a catalyst for hydrogenation. The method provides the convenience and economy of a one-step process, while producing improved yields and selectivities. The invention further provides for various embodiments of the foregoing which are suitable for the production of 4-ADPA, and the hydrogenation or reductive alkylation to produce PPD. Important to the invention are the molar ratios of aniline to nitrobenzene and nitrobenzene to the strong organic base and the choice and use of hydrogenation catalyst.
Patent KR-20010073310-A (KR)
Title: Compositions of Make-up Cosmetics
Inventor: CHO BYEONG GI
IPC: A61K8/84
Filed: 2000-01-13
Abstract: PURPOSE: A cosmetic make-up composition capable of giving superb feeling of application by effectively controlling volatilization of an aqueous component and volatile component and reducing the content of wax in conventional stick or cake preparations is provided, which improves softness, skin adhesion, durability and skin stability and imparts freshness. CONSTITUTION: This composition contains a gelling agent, wax added with bees wax and microcrystalline, olive ester, natural sugar ester, fluorine modified powder, galactoarabinan and a cooling agent. The gelling agent contains 1.0 to 10.0% by weight of one or two more of polyethylene, a polyethylene/isohexadecane polymer, rosin acrylate, an acrylate/dimethicone copolymer based on the total weight of the cosmetic make-up composition.
Patent KR-20010077059-A (KR)
Title: Vaccine composition having a good vaccination effect
Inventor: BAE OE SIK
IPC: A61K39/29
Filed: 2000-01-31
Abstract: PURPOSE: A vaccine composition including peptide and an immunoactivating agent as an immune adjuvant is provided, which improves a vaccine adjuvant effect by an antigen and can be formulated into oral or non-oral preparations. CONSTITUTION: A vaccine composition contains an antigen, 0.001 to 1% by weight of peptide with an amino acid sequence represented by SEQ ID NO:1 and an immunoactivating agent. The antigen is E2 protein of hepatitis C virus and the imnunoactivating agent is alum. The composition can contain an aqueous excipient additionally to increase stability of the antigen.
Patent KR-20000062576-A (KR)
Title: 반도체 디바이스의 제조라인
IPC: H01L21/00
Filed: 2000-02-21
Abstract: 반송로를 효율적으로 이용하고, 처리장치를 유효하게 가동시켜 생산효율을 높이는 것을 그 과제로 한다. 
     이를 해결하기 위한 수단으로 여러개의 처리장치(M)를 직렬로 배치한 섹션을 갖추고, 이들 여러개의 처리장치를 따라 반송로(1)를 배치한 반도체 디바이스의 제조라인을 전제로 하며, 상기 처리장치(M) 중 소정의 처리장치에 대응하는 위치로서 반송로(1)에서 벗어난 곳에 버퍼포트(P)를 배치하고 웨이퍼기반을 적치하며, 반송로를 주행하는 반송체(2)가 상기 버퍼포트로 퇴피할 수 있는 구성으로 했다.
Patent KR-20000030354-A (KR)
Inventor: KIM HYUN SU
Filed: 2000-02-23
Abstract: PURPOSE: A gift coupon is to internet site advertisement and method of individual advertisement is to after by internet. A gift coupon is a name card, a post card and etc that comprising an owner a gift coupon is to connect site for a gift lottery on a lottery days. CONSTITUTION: An owner a gift coupon at connect internet to use web bra user of computer and internet connection means and a lottery days. And number for a lottery is input and login, to auto link on a gift lottery management company by link module. And then input number is to compare database of server by a course confirmation module, if input number should right a lottery days. When right, screen is to show advertisement about a gift coupon management loading from server by advertisement loading module. The screen is to show a condition input division to demand a gift lottery management, to input hold a lottery by a gift lottery module. A lottery is to compare input number with in store number to form of server database. When is to hold a lottery, visitor input correct visitor number that a free gift is to offer visitor. After regular term, a second lottery is forming to make a company of a lottery man to offer a free gift of expensive and forgery of a gift coupon is to prevent.
Patent KR-20000024677-A (KR)
Inventor: HA TAE SIK
Filed: 2000-02-29
Abstract: PURPOSE: An application for admission for insurance method is provided to connect an insurance service site and counsel by an one to one chatting program at the real time at a chatting room. CONSTITUTION: A web server of an insurance firm includes an one to one chatting program (20), a server for an operating system(40), a terminals for an insurance counselor(50), a supporter terminal(70) connected a host contained a database for a member information, a network(80) and a memory server. The member of the web site of the insurance firm searches an insurance goods and a subscribe for insurance by counseling with a counselor by one to one chatting in the web site of the insurance firm.
Patent KR-20000037105-A (KR)
Inventor: KIM SI JOON
Filed: 2000-04-07
Abstract: PURPOSE: An advertizing and shopping system using the Internet game and its method are provided to buy products in the web by using points of advertizing sites which are difficult to be exchanged to cash together with playing game. CONSTITUTION: An advertizing and shopping system using the Internet game includes a manager server section having a manager server(1), a member database pool(2), a game database pool(3), a membership point database pool(4), a conversion program storing unit(5), a advertize database pool(6) for storing advertizing banners, and a web server(7), sponsor advertizing sites which are connected through the Internet, and the user terminals connecting the sites.
Patent KR-20010095983-A (KR)
Title: Circuit for driving liquid-crystal cell in liquid crystal display panel of active matrix type
Inventor: CHO SEONG HO
IPC: G09G3/36
Filed: 2000-04-14
Abstract: PURPOSE: A driving circuit of a liquid crystal cell in an active matrix type liquid crystal display panel is provided, which can retain a stable display state even when a driving voltage from the external is unstable. CONSTITUTION: The first electrode of a liquid crystal cell(LC) is grounded. The first M-I-M diode(MD1) for bidirectional current control is connected between a corresponding scan line(SLm) and a data line(DLn) through a resistor(R). Also, the second M-I-M diode(MD2) for the bidirectional current control is connected between the scan line and the second electrode opposite to the first electrode of the liquid crystal cell through the resistor. The first and the second M-I-M diode are constituted by inserting a Ta2O5 between two metallic electrode plates.
Patent KR-20010096868-A (KR)
Title: 진동효과장치
Filed: 2000-04-15
Abstract: 영화 등에 있어서, 진동감이나 충격감등의 임장감을 보다 확실히 재현시킨다. 
     진동감이나 충격감등의 임장감을 효과적으로 표현할 수가 있어, 진동감지, 혹은, 전자적인 합성에 의해 얻은 진동신호를, 미리 기억매체(102)에 기억하여 놓는다. 상기 진동신호는, 특정한 작품[도면(1)으로서는 영화필름(106)]의 임장감을 표현하고 싶은 신(scene)의 타임코드 등에 같은 시기에 기억되어 있고, 상영되는 영화필름(106)의 타임코드(107)가 광학판독부(108)에 의해서 판독되어져서 진동효과장치(101)의 입력부(104)에 입력되면, 이 타임코드(107)에 같은 시기에 상기 기억매체(102)에 기억된 상기 진동신호가 제어부(103)에 의해서 판독되어지고 출력부(105)로부터 출력된다. 출력된 진동신호는, 의자 등에 설치된 트랜스튜서에 전달되어 임장감 등이 재현된다.
Patent KR-20010096330-A (KR)
Title: Trading system for electronic certificate and controlling method thereof
Inventor: KIM CHONG HA
Filed: 2000-04-18
Abstract: PURPOSE: An electronic certificate trading system and a control method thereof are provided to trade electronic certificates, such as, an electronic stock, an electronic card, etc., through on-line and off-line in real time all day long. CONSTITUTION: An input part(101) receives various data form an internal manager(10). The first storing part(102) stores a user information inputted from a user(20). The second storing part(103) stores an information of an inputted matter to be invested. The third storing part(103) stores other information. A user identifying part(105) reads a data stored in the first storing part(102) and identifies whether the current user is a member. The first searching part(106) reads a pertinent data stored in the first, second, and third storing parts. The fourth storing part(107) stores a state that an electronic certificate is traded through on-line and off-line. The second searching part(108) reads a data stored in the fourth storing part(107) and transfers the result to an off-line trade system(200) and the user(20). A certifying/paying part(109) receives a credit card data from the user and performs certification and payment. A message output part(110) outputs a pertinent message according to a control signal. A control part(111) controls operations according to a signal requested from the user(20).
Patent KR-20000037353-A (KR)
Inventor: PARK IL KWEON
IPC: F25D23/00
Filed: 2000-04-19
Abstract: PURPOSE: A deodorant container structure is provided to maximize offensive odor removing efficiency. CONSTITUTION: A deodorant container structure includes a body(20) having filling-up portion(21) for containing the deodorant, of which walls have a plurality of pierced holes(23) and an insertion hole(24) at the central portion; a cover(40) attached to an upper portion of the body and having use time duration checking device(30) for checking the proper time of changing the deodorant; and attachment device(50) for attaching the deodorant container to the refrigerator wall by being inserted into the insertion hole.
Patent KR-20010097147-A (KR)
Inventor: KIM UK HYEON
IPC: G02F1/1335
Filed: 2000-04-20
Abstract: 본 발명은 백색 발광 다이오드(white LED)를 이용한 백라이트(backlight) 유닛과 고순도 백색광 발광방법에 관한 것이다. 
     본 발명에서 사용되는 백색 발광 다이오드는 청색 발광 다이오드에 백색광용 형광체가 도핑된 투명수지로 코팅된 것을 특징으로 하며, 고순도 발광 다이오드는 청색 발광 다이오드에 녹색 발광용과 적색 발광용 형광체가 도핑된 투명수지로 코팅된 것을 특징으로 한다. 
     본 발명의 백라이트 유닛은 상기 다이오드와 확산판, 그리고 도광판으로 구성된다. 
     본 발명의 백라이트 유닛은 중소형 디스플레이 단말기에 적용될 경우, 장치의 소형화시킬 수 있으며, 높은 절전 효과를 얻을 수 있다.
Patent KR-20010097332-A (KR)
Inventor: KIM IN SU
Filed: 2000-04-21
Abstract: 본 발명은 발신 번호 수신 단말 장치 없이도 마지막으로 착신된 발신 번호를 확인하고 재호출할 수 있도록 하는 교환기에서 발신 번호 확인 및 재호출 방법에 관한 것이다. 
     종래에는 착신 처리부로부터 DTMF 신호로 발신 번호를 수신받은 발신 번호 수신 단말 장치가 수신받은 발신 번호를 디스플레이부에 표시하였다.  따라서, 착신 가입자가 발신 번호를 확인하기 위해서는 발신 번호 수신 단말을 구비하고 있어야 하는 문제점이 있다. 
     본 발명은 교환기에서 최종 착신된 발신 번호를 저장하고 있다가 소정 명령에 따라 발신 번호를 안내 및 재호출함으로써, 발신 번호 수신 단말 장치 없이도 발신 번호를 확인하고 재호출할 수 있는 효과가 있다.