Patents Represented by Attorney, Agent or Law Firm Long Aldridge & Norman
  • Patent number: 6307215
    Abstract: This invention is related to a thin film transistor (TFT) array and method of making same, for use in an active matrix liquid crystal display (AMLCD) having a high pixel aperture ratio. The TFT array and corresponding display are made by forming the TFTs and corresponding address lines on a substrate, coating the address lines and TFTs with a photo-imageable insulating layer which acts as a negative resist, exposing portions of the insulating layer with UV light which are to remain on the substrate, removing non-exposed areas of the insulating layer so as to form contact vias, and depositing pixel electrodes on the substrate over the insulating layer so that the pixel electrodes contact respective TFT source electrodes through the contact vias. The resulting display has an increased pixel aperture ratio because the pixel electrodes are formed over the insulating layer so as to overlap portions of the array address lines.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: October 23, 2001
    Assignee: OIS Optical Imaging Systems, Inc.
    Inventors: Willem den Boer, John Z. Z. Zhong, Tieer Gu
  • Patent number: 6305929
    Abstract: An apparatus which can confine almost entire available energy in the vicinity of ignition point during a laser-induced ignition process is proposed. Multiple reflection by a cavity surface when a small diameter laser beam is directed into the cavity is utilized in laser ignition. Shadowgraphs of the early stages of the combustion process for quiescent methane/air mixtures show that a hot gas jet emerges from the cavity. During subsequent flame propagation, both similarities with and difference from conventional spark ignition processes are observed, depending on the cavity size and the concentration of mixtures. With laser cavity ignition, the chamber pressure increases relatively rapidly and higher maximum pressure can be achieved. As a result, the combustion duration for laser cavity ignition is decreased relative to laser-induced spark ignition.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: October 23, 2001
    Assignees: School of Mechanical and Aerospace Engineering, Seoul National University
    Inventors: Suk Ho Chung, Mohamed Hassan Morsy, Young Sung Ko
  • Patent number: 6307531
    Abstract: A liquid crystal display apparatus having driving integrated circuits arranged in a single bank form that is adapted to respond to video data for double bank while enlarging the effective display area thereof. The driving integrated circuits are arranged in parallel in one region of a liquid crystal panel to drive the pixels contained in a pixel matrix in the liquid crystal panel. Also, the driving integrated circuits divisionally drive pixels for one line in a predetermined number of pixel units arranged successively with the video data having odd-numbered pixel data and even-numbered pixel data sequentially rearranged.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: October 23, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Min-Cheol Shin
  • Patent number: 6304432
    Abstract: A method of mounting a liquid crystal display module thereof which secures an upper sash including the liquid crystal display module to a lower sash in a notebook personal computer. An arm coupled to one end of a fixed rod by a hinge is arranged to be positioned between a side wall of the upper sash and a side wall of the lower sash. A screw goes through from the side wall of the upper sash, via the arm, to the side wall of the liquid crystal display module.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: October 16, 2001
    Assignee: LG.Philips Lcd. Od., LTD
    Inventor: Yong Gyu Kim
  • Patent number: 6300151
    Abstract: The present invention relates an optical element used in the field of optical communication and a method for aligning an optical fiber to connect an external optical communication system to the optical element.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: October 9, 2001
    Assignee: LG Cable & Machinery, Ltd.
    Inventors: Euy Sik Yoon, Hong Jun Jun, Ki Chul Shin, Jun Seok Song, Bon Jo Koo, Ho Sung Lee
  • Patent number: 6300175
    Abstract: A method of fabricating a thin film transistor includes crystallizing an amorphous silicon layer having a sloping surface and a flat surface by an SLS technique using a laser beam having predetermined energy density so as to melt the sloping surface as well as the flat surface of the amorphous silicon layer to form a crystallized silicon layer and forming the active layer by selectively etching the crystallized silicon layer. The laser beam is applied non-vertically to the sloping surface while the laser beam is applied vertically to the flat surface. Although the sloping surface and the flat surface of the amorphous silicon layer are irradiated with a laser beam having the same laser energy density, the absorbed energy density of the sloping surface may be lower than that of the flat surface. The laser beam generates a first energy density to substantially melt the sloping surface and a second energy density to substantially melt the flat surface of the amorphous silicon.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: October 9, 2001
    Assignee: LG. Philips LCD., Co., Ltd.
    Inventor: Dae-Gyu Moon
  • Patent number: 6297866
    Abstract: An in-plane switching mode liquid crystal display device includes first and second opposed substrates having inner surfaces in which a liquid crystal layer formed therebetween, a data bus line and a gate bus line arranged perpendicularly and/or horizontally in a matrix on the first substrate thereby defining a unit pixel region, and a pair of data electrode and common electrode applying a plane electric field in the liquid crystal layer, the electrodes being inclined with respect to the data bus line and parallel to each other.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: October 2, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Seong Moh Seo, Yong Sung Ham, Jong Jin Park, Hyun Ho Shin, Young Soo Ahn
  • Patent number: 6292296
    Abstract: A large scale polarizer comprises one or more quartz substrate parts formed as a rectangle, a triangle, or a parallelogram, and a polarizer holder supporting the quartz substrate part. The polarizer holder may be in a lattice structure holding a plurality of quartz substrate parts. A polarizer system employing the large scale polarizer comprises a, lens making an incident light to a parallel light, the large scale polarizer, and a moving control part coupled to and moving the large scale polarizer.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: September 18, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Jae Beom Choi, Byung Duck Song, Ki Hyuk Yoon
  • Patent number: 6291360
    Abstract: The present invention relates to a method of etching a layer on a fabricated thin film transistor in liquid crystal display, which prevents failure of patterns by removing the residues generated from organic material in the air or the remainders of photoresist before patterning a layer. The present invention includes the steps of defining a photoresist pattern on a predetermined region of a layer on substrate, leaving an etch-resistant residue on at least a portion of the layer outside the predetermined region, removing residue by ashing with plasma, patterning the layer with an etchant, where the the photoresist pattern acts as an etch mask.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: September 18, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Kyo-Ho Moon
  • Patent number: 6285417
    Abstract: A position sensing liquid crystal display includes a liquid crystal display panel having a first substrate and a second substrate bonded together, and a position sensing digitizer formed as an integral unit on a first or rear surface of at least one of the substrates, whereby minimizing a display panel thickness and allowing an accurate position sensing.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: September 4, 2001
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Young Soo Ahn, Sung Joon Bae
  • Patent number: 6281957
    Abstract: An in-plane switching mode liquid crystal display device includes first and second substrates and a plurality of gate and data bus lines defining pixel regions and arranged perpendicularly and/or horizontally on the first substrate. A common line is formed with the gate bus line, and a plurality of thin film transistors are formed at respective crossing areas of the gate and data bus lines. A plurality of gate electrodes are connected to the gate bus lines, and a gate insulator having a contact hole on the gate electrodes. A transparent first metal layer including a plurality of first electrodes is on the gate insulator. A passivation layer having a contact hole is on the first metal layer. A transparent second metal layer including a plurality of second electrodes is on the passivation layer. A black matrix for preventing light from leaking around the thin film transistor, the gate bus line, and data bus line is on the second substrate.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: August 28, 2001
    Assignee: LG Electronics, Inc.
    Inventors: Young Jin Oh, Jae Beom Choi
  • Patent number: 6281136
    Abstract: An apparatus for etching a glass substrate includes a first bath containing an etchant, at least one porous panel having a plurality of jet holes in the first bath, the porous panel containing the etchant to jet the etchant against the glass substrate, a container storing the etchant, and a pump supplying the etchant from the container to the porous panel, the pump being connected to the container and the porous panel.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: August 28, 2001
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Woong Kwon Kim
  • Patent number: 6281055
    Abstract: A method of fabricating a TFT includes a step of forming an impurity region for a source and a drain by simultaneously implanting and activating impurity ions. More particularly, the present invention includes the steps of forming a gate insulating layer and a gate on a predetermined and selected portion of an active layer, forming an excited region in the exposed portion of the active layer by implanting hydrogen ions to the active layer by using the gate as a mask, and forming an impurity region by implanting impurity ions heavily to the excited region which remains in an excited state.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: August 28, 2001
    Assignee: LG.Philips LCD Co., Ltd.
    Inventor: Joon-Young Yang
  • Patent number: 6281954
    Abstract: The present invention is to provide a manufacturing method and a structure of an LCD which prevents a pixel electrode from being disconnected or being peeled off thinly from the drain electrode. The bottom plate of an active matrix type LCD comprises a protection layer which covers the switching element, a contact hole for exposing the output terminal of the switching element through the protection layer and the pixel electrode which contacts the output terminal of the switching element through the contact hole and which is formed on the protection layer. Specifically, the contact hole is located in a distance of at least 5 &mgr;m inwards from the edge of the pixel electrode. Therefore, disconnection or peel off of the pixel electrode from the drain electrode due to cracking of the pixel electrode occurring during the process of baking at a high temperature is prevented.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: August 28, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Kyoung Nam Lim, Sung Il Park, Jeong Hyun Kim
  • Patent number: 6281959
    Abstract: A connecting part of an outer circuit in a liquid crystal display panel includes a substrate and a plurality of pads on the substrate, where the pads are to be connected to the outer circuit. A first connecting wire is connected to one of said pads, the wire being arranged in a first direction. A second connecting wire is connected to another one of said pads, the second connecting wire being arranged in a second direction. The first and second connecting wires are formed to minimize overlapped areas over the pads at crossing points between the first and second connecting wires and the pads. The first connecting wire is bent toward the second direction at a point and connected to the driving circuit.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: August 28, 2001
    Assignee: LG Electronics Inc.
    Inventors: Byeong-Koo Kim, Yong-Min Ha
  • Patent number: 6278130
    Abstract: An LCD includes a substrate; a first transistor formed on the substrate, the first transistor having a MILC (metal-induced lateral crystallization) region formed on a substrate with a semiconductor material and including a channel region; and MIC (metal-induced crystallization) regions formed on sides of the MILC region with a semiconductor material, wherein at least one boundary between the MILC region and one of the MIC regions is located outside the channel region; a second transistor formed on the substrate, the second transistor having a MILC (metal-induced lateral crystallization) region formed on the same substrate with a semiconductor material and including a channel region; and MIC (metal-induced crystallization) regions formed on sides of the MILC region with a semiconductor material, wherein at least one boundary between the MILC region and one of the MIC regions is located outside the channel region; and a third transistor formed on the substrate, the third transistor having an amorphous silicon l
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 21, 2001
    Inventors: Seung-Ki Joo, Tae-Hyung Ihn
  • Patent number: 6275275
    Abstract: The present invention relates to a thin film transistor and a fabricating method thereof which is applied to a buried bus coplanar type TFT wherein the source and drain wires are located on a substrate. The present invention includes an insulated substrate, a source electrode and a drain electrode on the insulated substrate, a first insulating layer on the insulated substrate wherein the first insulating layer has a predetermined pattern, an active layer on the first insulating layer wherein the active layer has a source region, a channel region and a drain region, a second insulating layer covering the active layer, and a gate electrode on the second insulating layer over the channel region.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 14, 2001
    Assignee: LG.Philips LCD. Co., Ltd.
    Inventor: Yong Min Ha
  • Patent number: 6271903
    Abstract: A liquid crystal display device composed of: a first substrate and a second substrates; a liquid crystal layer provided between the first and second substrates; a plurality of pixel regions provided on the surface opposing the second substrate of the first substrate, each of which pixel regions has at least one pixel electrode and a common electrode for cooperatively applying an electric field in a direction along the surface of the first substrate; and a conductive light shielding matrix provided on the surface opposing the first substrate of the second substrate which light shielding matrix has openings each corresponding to a display region of each of the pixel regions and shades non-display regions other than the pixel regions; in which the light shielding matrix and the common electrode are set to substantially the same voltage.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: August 7, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Hyunho Shin, Chae Gee Sung, Kouji Takashina
  • Patent number: 6270366
    Abstract: The present invention relates to an plug-in type electric interconnecting system.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: August 7, 2001
    Assignee: LG Cable and Machinery Ltd.
    Inventors: Myoung Soo Jeon, Geol Hun Cho, Young Pyo Hong, Seong Joon Lee, Chang Ho Jung
  • Patent number: RE37326
    Abstract: An HDTV receiver is disclosed including a tuning portion for selecting one of a plurality of RF signals received, and converting a selected RF signal into an intermediate frequency signal; a demodulator/FPLL for demodulating the intermediate frequency signal output from the tuning portion into a baseband signal in which the frequency and phase are locked, and outputting an AFC signal; a first local oscillator for forming a frequency signal which can be varied from a reference frequency to a specific frequency, and outputting the thus-formed frequency signal to the demodulator/FPLL; and a VSB filter for VSB-filtering the baseband signal output from the demodulator/FPLL.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: August 14, 2001
    Assignee: LG Electronics
    Inventor: Dae Jin Kim