Patents Represented by Attorney, Agent or Law Firm Hae-Chan Park
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Patent number: 6611309Abstract: The present invention relates to the formation, on a substrate having a display area and a peripheral area, of a gate wire including a plurality of gate lines and gate electrodes in a display area and gate pads in the peripheral area, and of a common wire, including a common signal line and a plurality of common electrodes in the display area. A gate insulating layer, a semiconductor layer, an ohmic contact layer and a conductor layer are sequentially deposited, and the conductor layer and the ohmic contact layer are patterned to form a data wire including a plurality of data lines, a source electrode and a drain electrode of the display area, and data pads of the peripheral area, and an ohmic contact layer pattern thereunder. A passivation layer is deposited and a positive photoresist layer is coated thereon. The photoresist layer is exposed to light through one or more masks having different transmittances between the display area and the peripheral area.Type: GrantFiled: July 24, 2001Date of Patent: August 26, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Woon-Yong Park, Jong-Soo Yoon
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Patent number: 6600539Abstract: Disclosed is a liquid crystal display comprising first and second substrates provided opposing one another; a liquid crystal layer made of liquid crystal material that is injected between the first and second substrates; pixel electrodes and a common electrode formed on at least one of the substrates, the pixel electrodes and common electrode generating an electric field that acts on the liquid crystal layer; and domain formation means for controlling a slanting direction of liquid crystal molecules within the liquid crystal layer, wherein m is an integer satisfying the following: h/2(&pgr;/wp)½−2≦m≦h/2(&pgr;/wp)½+2 where m is a number of domains formed by dividing the pixel electrodes by the domain formation means, w is a length of a first direction of the pixel electrodes, h is a length of a second direction of the pixel electrodes, the second direction being perpendicular to the first direction, and p is a width of a second direction of the domain formation means.Type: GrantFiled: June 13, 2001Date of Patent: July 29, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Jang-Kun Song
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Patent number: 6593982Abstract: A liquid crystal display includes a first substrate with pixel electrodes, and a second substrate with a common electrode facing the first substrate. The common electrode has depression patterns corresponding to the pixel electrodes. The side wall of each depression pattern is at an angle of 30-120° with respect to the first substrate. The depression patterns of the common electrode are formed through making depression patterns at color filters. In this structure, the liquid crystal display bears wide viewing angle and good picture quality.Type: GrantFiled: December 4, 2000Date of Patent: July 15, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Yea-Sun Yoon, Seung-Beom Park, Byoung-Sun Na
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Patent number: 6593980Abstract: A liquid crystal display device has a light guiding plate with a novel structure. The liquid crystal display device has a back light assembly including a light source and the light guiding plate, a display unit for displaying an image and a case for fixedly receiving the back light assembly and the display unit. The light guiding plate is formed at a bottom portion thereof with a light diffusing pattern for uniformly outputting the incident light. A light dispersing member for dispersing the light in the light guiding plate is provided in the light guiding plate. The leaking light is outputted towards the display unit by contacting with the dispersing particles of the light dispersing member, so the light efficiency and the brightness are improved.Type: GrantFiled: June 22, 2001Date of Patent: July 15, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Keun-Woo Lee, Kyoung-Don Lee
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Patent number: 6593979Abstract: In the packaging of an LCD module within a small and lightweight case, the case comprising a front case and a rear case, a recess with a predetermined depth, formed at the edge of the bottom side of the LCD module, is combined with a boss formed at the case, and a recess with a predetermined depth, formed at the edge of its surface, is fastened to a fastening means for securing the LCD module, thereby minimizing the difference between the areas of the LCD module and the case and further reducing the number of processes required for combining the LCD module with the case. In addition, the recess formed at the surface edge of the LCD module is combined with a fastening hook formed at the rear case so that the LCD module can be secured to the rear case and to the front case without any separate fastening member such as a stud or insert.Type: GrantFiled: October 6, 2000Date of Patent: July 15, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Ho Ha, Ick-Hwan Lee, Sang-Duk Lee, Yoon-Soo Kwon, Jung-Tae Kang
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Patent number: 6590226Abstract: Disclosed is a thin film transistor substrate and a system for inspecting the same. The thin film transistor substrate comprises gate wiring formed on an insulation substrate and including gate lines, and gate electrodes and gate pads connected to the gate lines; a gate insulation layer covering the gate wiring; a semiconductor layer formed over the gate insulation layer; data wiring formed over the gate insulation layer and including data pads; a protection layer covering the data wiring; auxiliary pads connected to the data pads through contact holes formed in the protection layer; and a pad auxiliary layer formed protruding a predetermined height under the data pads.Type: GrantFiled: October 5, 2001Date of Patent: July 8, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Hyang-Shik Kong, Sung-Wook Huh, Young-Bae Park
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Patent number: 6590181Abstract: The present invention disclose a laser cutter for cutting an object being cut such as a two glasses-attached panel for LCD using a laser beam. The laser cutter includes a laser unit for irradiating a laser beam with a specific wavelength along a marked cutting line of the object, a pre-scriber for forming a pre-cut groove at starting edge of the marked cutting line, and a cooling unit for cooling the cutting line which said laser beam has been irradiated.Type: GrantFiled: February 28, 2002Date of Patent: July 8, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
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Patent number: 6587160Abstract: A data line and an amorphous silicon pattern are formed on a substrate. The first electrode pattern is extended from the data line and overlaps an edge of the amorphous silicon pattern. The second electrode pattern is made of the same metal as the first electrode pattern and overlaps the edge of the amorphous silicon pattern at an opposite side of the first electrode pattern. Edges of the first and the second electrode patterns are sharply formed so that a tunneling effect easily occurs through the amorphous silicon pattern. An indium-tin-oxide pattern for a capacitor is formed at the end of the second electrode pattern. The capacitor is formed between the ITO pattern and a common electrode.Type: GrantFiled: October 14, 1998Date of Patent: July 1, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Joo-Hyung Lee, Dong-Gyu Kim, Woon-Yong Park
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Patent number: 6586286Abstract: A thin film transistor substrate for a liquid crystal display includes an insulating substrate, and a gate line assembly formed on the substrate. The gate line assembly has a double-layered structure with a lower layer exhibiting good contact characteristics with respect to indium tin oxide, and an upper layer exhibiting low resistance characteristics. A gate insulating layer, a semiconductor layer, a contact layer, and first and second data line layers are sequentially deposited onto the substrate with the gate line assembly. The first and second data line layers are patterned to form a data line assembly, and the contact layer is etched through the pattern of the data line assembly such that the contact layer has the same pattern as the data line assembly. A passivation layer is deposited onto the data line assembly, and a photoresist pattern is formed on the passivation layer by using a mask of different light transmissties mainly at a display area and a peripheral area.Type: GrantFiled: February 15, 2002Date of Patent: July 1, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Woon-Yong Park, Jong-Soo Yoon, Chang-Oh Jeong
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Patent number: 6587166Abstract: A display module of an LCD device having a rear case shaped as a four-cornered container having sidewalls on each of its four edges; a backlight assembly formed by depositing and fixing a reflector plate, a light guide plate, and a series of sheets onto a mold frame where a lamp assembly receiving portion, a gate PCB receiving portion, and a source PCB receiving portion are integrally formed; an LCD panel module having an upper panel, a lower panel coupled to the upper panel with a liquid crystal inserted therebetween, a gate PCB electrically connected to an end portion of the lower panel, and a source PCB electrically connected to another end portion of the lower panel and has a conductive pattern for an electric signal to be applied to an inverter; a main chassis which defines an active screen area of the LCD panel module and couples the mold frame and the LCD panel module to the rear case; and a front case coupled to the main chassis and covering a whole surface of the LCD panel module excluding the activeType: GrantFiled: August 25, 1999Date of Patent: July 1, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Duk Lee, Min-Ho Ok
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Patent number: 6583831Abstract: Disclosed is a liquid crystal display device capable of preventing a grounding clip, which is combined to an end of a mold frame to ground a printed circuit board to a top chassis, from making electrical contact with a display unit. A guide projection is formed at the end of the mold frame so as to be placed adjacent to the grounding clip. A gap between the guide projection and the liquid crystal display panel is narrower than a gap between the liquid crystal display panel and the grounding clip. Accordingly, even though the mold frame is bent by means of an outerforce applied to both ends of the mold frame, it is possible to prevent the grounding clip from deforming and making electrical contact with the liquid crystal display panel.Type: GrantFiled: April 26, 2002Date of Patent: June 24, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Tae-Joon Kim
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Patent number: 6580489Abstract: Disclosed is a liquid crystal display panel capable of being cut by a laser light. The liquid crystal display panel according to the present invention includes a substrate having a buffer layer between a conducting layer and an inner surface of the substrate, in which the buffer layer is disposed along a cutting line and spreads a crack and edges of the conducting layer is positioned in a region defined by the cutting line. Further, a method for manufacturing the liquid crystal display panel is disclosed, in which the liquid crystal display panel is machined by a laser cutter and a laser grinder.Type: GrantFiled: August 3, 2001Date of Patent: June 17, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Dae-ho Choo, Byeong-ill Kim, Sung-uk Jung, Woo-shik Lee, Bum-soo Kim
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Patent number: 6580477Abstract: A liquid crystal display of a large screen size, a slim thickness and light weight is disclosed. The liquid crystal display includes a light supply unit group having at least two light guiding plates arranged in parallel and at least one lamp unit coupled to one side of the light guiding plate. A light control element is mounted on an upper surface of the light supply unit group, and uniformly controls luminance between the light guiding plate and the lamp unit. A reflective plate is disposed on a rear surface of the light supply unit group and has a shape corresponding to the rear surface of the light supply unit group. A back light assembly includes a receiving container that receives the light supply unit group, the light control element, and the reflective plate.Type: GrantFiled: August 3, 2000Date of Patent: June 17, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Chun-Hyun Cho
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Patent number: 6577913Abstract: Disclosed are a system for workpiece cutting and sorting automation, and a method for controlling the system. The system includes a cutting/sorting equipment for cutting a substrate having a plurality of cells into cut substrates, and sorting the cut substrates according to a predetermined mode; and a system controller for receiving a request for operation information on the cut substrates from the cutting/sorting equipment, and transmitting the operation information and operation commands to the cutting/sorting equipment. The method includes the steps of (a) determining an operating mode of the cut substrates; (b) sorting the cut substrates and supplying the sorted cut substrates to one of the plurality of cassettes according to the operating mode of the cut substrates determined in step (a); and (c) repeating steps (a) and (b) for a predetermined lot number of cut substrates.Type: GrantFiled: June 9, 1999Date of Patent: June 10, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Joon Byun, Jong-Beom An, Min-Young Heo
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Patent number: 6577368Abstract: A liquid crystal display having electrodes on a single substrate. A transparent planar electrode elongated in the transverse direction is formed on the inner surface of a substrate, and an insulating film is deposited thereon. A plurality of linear electrodes, which are elongated in the longitudinal direction and either transparent or opaque, are formed on the insulating film. Potential difference between the planar and the linear electrodes generated by applying voltages to the electrodes yields an electric field. The electric field is symmetrical with respect to the longitudinal central line of the linear electrodes and the longitudinal central line of a region between the linear electrodes, and has parabolic or semi-elliptical lines of force having a center on a boundary line between the planar and the linear electrodes.Type: GrantFiled: November 3, 1998Date of Patent: June 10, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Tae Yuh, Kye-Hun Lee, Byoung-Sun Na, Dong-Gyu Kim, Jong-Woong Chang, Jung-Uk Shim, Jang-Kun Song, Hyun-Sik Lee
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Patent number: 6577366Abstract: In a vertically aligned mode LCD, a gate line and a storage line are formed on a substrate in parallel, and a storage electrode and a cover pattern are formed as branches of the storage line. The storage electrode is overlapped with an aperture of a common electrode formed on an upper substrate. The cover pattern is located between a pixel electrode and a data line to prevent a light leakage. Accordingly, an alignment error margin of the upper substrate and the lower substrate is increased, an aperture ratio is enhanced, and repairing the high pixel defect is possible. Further, the light leakage caused by a voltage of the data line is prevented.Type: GrantFiled: October 13, 1999Date of Patent: June 10, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Kyeong-Hyeon Kim, Kye-Hun Lee, Seung-Beom Park, Jang-Kun Song
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Patent number: 6573532Abstract: A plurality of gate lines extending in a horizontal direction are formed on an insulating substrate, and a data line is formed perpendicular to the gate line thereby defining a pixel of a matrix array. Pixel electrodes receiving image signals through the data line are formed in a pixel, and a thin film transistor having a gate electrode connected to the gate line, a source electrode connected to the data line, and a drain electrode connected to the pixel electrode is formed on the portion where the gate lines and the data lines intersect. A storage wire including a storage electrode line is formed in the horizontal direction, and a storage electrode connected to the storage electrode line and forming a storage capacitance by overlapping the pixel electrode is formed in the pixel. A redundant repair line both ends of which overlap the storage wire of the neighboring pixel, and a storage wire connection line connecting the storage wires of a neighboring pixel are formed.Type: GrantFiled: March 5, 2002Date of Patent: June 3, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Woon-Yong Park
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Patent number: 6570636Abstract: Disclosed is a liquid crystal display comprising a first substrate made of an insulating material; pixel electrodes formed on the first substrate, the pixel electrodes having a first aperture pattern; a second substrate made of an insulating material and provided opposing the first substrate at a predetermined distance; a common electrode formed on the second substrate, the common electrode having a second aperture pattern; and a liquid crystal layer made of liquid crystal material that is injected between the first and second substrates, wherein either or both of the pixel electrodes and the common electrode include stepped portions that protrude a predetermined distance away from the substrates, between apertures of the first and/or second aperture patterns.Type: GrantFiled: June 5, 2002Date of Patent: May 27, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Hoon Kim, Jang-Kun Song
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Patent number: 6570638Abstract: Disclosed is a thin film transistor panel comprising an insulation panel; gate wiring formed on the insulation panel; data wiring insulated from and intersecting the gate wiring; a switching element connected to the gate wiring and the data wiring, the switching element transmitting or cutting off signals of the data wiring according to signals of the gate wiring; and a pixel electrode connected to the switching element to receive the signals from the data wiring, the pixel electrode having an opening pattern, wherein the opening pattern of the pixel electrode includes a plurality of openings, each opening making a predetermined angle with an adjacent opening.Type: GrantFiled: March 13, 2001Date of Patent: May 27, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Jang-Kun Song
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Patent number: 6567144Abstract: Saw-shaped protrusions, which are parallel to each other, are formed on the common electrode and the pixel electrode in two substrates. Protrusions in two substrates are arranged alternately and the bent portions of the saw-shaped protrusions are placed on the line transverse passing through the center of a pixel. Branches extend from the convex point of one saw-shaped protrusion toward the apex to the other saw-shaped protrusion, and another branch extend from the point where the protrusion meets the boundary of the pixel electrode toward the point where the boundary of the pixel electrode and the saw-shaped protrusion make an acute angle. A liquid crystal layer between two electrodes are divided to four regions where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes, and then, wide viewing angle is obtained. In most regions, protrusions are formed straight and the protrusions have only obtuse angles at the bent points.Type: GrantFiled: May 20, 1999Date of Patent: May 20, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Kyeong-Hyeon Kim, Kye-Hun Lee, Seung-Beom Park, Jang-Kun Song