Patents by Inventor Karel Elbert Kuijk

Karel Elbert Kuijk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6917353
    Abstract: A device for multiple row addressing is driven with pulse patterns based on sets of 8 (or more) orthogonal functions which have a less varying frequency content than pulse patterns based on a set of 8 Walsh functions. Mutually orthogonal signals are obtained from at least two types of the orthogonal functions having four elementary units of time. Within the four elementary units of time, one pulse each unit of time has a polarity which is different from the plurality of the other pulses.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: July 12, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Karel Elbert Kuijk
  • Patent number: 6876349
    Abstract: Digital to analogue conversion in an AMLCD is obtained by using the column electrode capacitance as part of the digital to analogue conversion circuit by dividing columns (19) into separate sections and serially performing the conversion via switching elements (31). Alternative embodiments comprise a column driver circuit with capacitors having a (binary) divided range of capacitance or use column sub-electrodes of different widths.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 5, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Martin John Edwards, Karel Elbert Kuijk
  • Patent number: 6753838
    Abstract: A device for multiple row addressing is driven by frame addressing with pulse patterns based on sets of orthogonal functions. By choosing redundant frames with suitable frame lengths, a less varying frequency content is obtained than with pulse patterns obtained via frames based on a set of binary functions.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: June 22, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Karel Elbert Kuijk, Leendert Marinus Hage
  • Patent number: 6750607
    Abstract: In flexible AM-LCDs using plastic TFT transistors (8), based on bottom gate, the signal distortion on the data lines (6) or selection lines (5) is reduced by adding metal strips (15, 25) per pixel, attached to said data lines (by vertical interconnections (16)), to provide a low-ohmic shunt.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: June 15, 2004
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Hjalmar Edzer Ayco Huitema, Karel Elbert Kuijk
  • Patent number: 6579462
    Abstract: A flat display device, preferably of the PALC type, in which the plasma channels are formed by etching laterally-spaced slots in a spacer plate, attaching a thin dielectric sheet over the etched spacer plate, and bonding the etched spacer plate to a transparent substrate such that each channel is formed by the portion of the substrate between flanking walls formed by the etched slots in the spacer plate, adjacent flanking walls in the spacer plate, and the overlying portion of the thin dielectric sheet. In a modification, strengthening crossbars are formed between adjacent flanking walls.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: June 17, 2003
    Assignees: Philips Electronics North America Corporation, Tektronix, Inc.
    Inventors: Babar A. Khan, Henri R. J. R. Van Helleputte, Adrianus L. J. Burgmans, Karel Elbert Kuijk, Petrus F. G. Bongaerts, Jacob Bruinink, Thomas Stanley Buzak, Kevin John Ilcisin, Paul Christopher Martin
  • Patent number: 6517402
    Abstract: A flat display device, preferably of the PALC type, in which the plasma channels are formed by etching laterally-spaced slots in a spacer plate, attaching a thin dielectric sheet over the etched spacer plate, and bonding the etched spacer plate to a transparent substrate such that each channel is formed by the portion of the substrate between flanking walls formed by the etched slots in the spacer plate, adjacent flanking walls in the spacer plate, and the overlying portion of the thin dielectric sheet. By positioning the flanking walls between channel electrode pairs, thus providing glass-to-glass interfaces, anodic bonding can be employed to assemble the three channel elements. Etching can be simplified by pre-attaching the unetched channel plate to the substrate or thin dielectric cover sheet with an intervening etch stop, and etching in situ using the-etch stop to prevent etching of the substrate or thin dielectric cover sheet.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: February 11, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Babar A. Khan, Henri R. J. R. Van Helleputte, Adrianus L. J. Burgmans, Karel Elbert Kuijk, Petrus F. G. Bongaerts, Jacob Bruinink
  • Publication number: 20020130614
    Abstract: In flexible AM-LCDs using plastic TFT transistors (8), based on bottom gate, the signal distortion on the data lines (6) or selection lines (5) is reduced by adding metal strips (15, 25) per pixel, attached to said data lines (by vertical interconnections (16)), to provide a low-ohmic shunt.
    Type: Application
    Filed: March 1, 2002
    Publication date: September 19, 2002
    Inventors: Hjalmar Edzer Ayco Huitema, Karel Elbert Kuijk
  • Patent number: 6433357
    Abstract: Display device in which switching elements (5) are realized in an organic semiconductor layer. Mutual insulation of the elements and pixels is obtained either electrically by applying depletion via voltages to a guard line (4) or physically by making parts of the organic semiconductor layer insulating.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: August 13, 2002
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Karel Elbert Kuijk, Marco Matters, Peter Tobias Herwig, Thomas Cleophas Theodorus Geuns
  • Patent number: 6433471
    Abstract: A flat display device, preferably of the PALC type, in which the plasma channels are formed by etching laterally-spaced slots in a spacer plate, attaching a thin dielectric sheet over the etched spacer plate, and bonding the etched spacer plate to a transparent substrate such that each channel is formed by the portion of the substrate between flanking walls formed by the etched slots in the spacer plate, adjacent flanking walls in the spacer plate, and the overlying portion of the thin dielectric sheet. In a modification, strengthening crossbars are formed between adjacent flanking walls.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: August 13, 2002
    Assignee: Philips Electronics North America Corporation
    Inventors: Babar A. Khan, Henri R. J. R. Van Helleputte, Adrianus L. J. Burgmans, Karel Elbert Kuijk, Petrus F. G. Bongaerts, Jacob Bruinink, Thomas Stanley Buzak, Kevin John Ilcisin, Paul Christopher Martin
  • Publication number: 20020054005
    Abstract: Digital to analogue conversion in an AMLCD is obtained by using the column electrode capacitance as part of the digital to analogue conversion circuit by dividing columns (19) into separate sections and serially performing the conversion via switching elements (31). Alternative embodiments comprise a column driver circuit with capacitors having a (binary) divided range of capacitance or use column sub-electrodes of different widths.
    Type: Application
    Filed: September 7, 2001
    Publication date: May 9, 2002
    Inventors: Martin John Edwards, Karel Elbert Kuijk
  • Publication number: 20020024492
    Abstract: A device for multiple row addressing is driven by frame addressing with pulse patterns based on sets of orthogonal functions. By choosing redundant frames with suitable frame lengths, a less varying frequency content is obtained than with pulse patterns obtained via frames based on a set of binary functions.
    Type: Application
    Filed: July 12, 2001
    Publication date: February 28, 2002
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Karel Elbert Kuijk, Leendert Marinus Hage
  • Publication number: 20020011981
    Abstract: A new switch circuit is proposed for use in display devices, comprising a series switch of complementary TFT transistors (11, 12) per pixel (8, 25). Simultaneous selection of the transistors provides low power applications. On the other hand, logic functions may be implemented.
    Type: Application
    Filed: July 17, 2001
    Publication date: January 31, 2002
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Karel Elbert Kuijk
  • Publication number: 20010026121
    Abstract: A flat display device, preferably of the PALC type, in which the plasma channels are formed by etching laterally-spaced slots in a spacer plate, attaching a thin dielectric sheet over the etched spacer plate, and bonding the etched spacer plate to a transparent substrate such that each channel is formed by the portion of the substrate between flanking walls formed by the etched slots in the spacer plate, adjacent flanking walls in the spacer plate, and the overlying portion of the thin dielectric sheet. In a modification, strengthening crossbars are formed between adjacent flanking walls.
    Type: Application
    Filed: June 6, 2001
    Publication date: October 4, 2001
    Applicant: Philips Electronics North America Corporation
    Inventors: Babar A. Khan, Henri R.J.R. Van Helleputte, Adrianus L.J. Burgmans, Karel Elbert Kuijk, Petrus F.G. Bongaerts, Jacob Bruinink, Thomas Stanley Buzak, Kevin John Ilcisin, Paul Christopher Martin
  • Publication number: 20010020926
    Abstract: A device for multiple row addressing is driven with pulse patterns based on sets of 8 (or more) orthogonal functions which have a less varying frequency content than pulse patterns based on a set of 8 Walsh functions.
    Type: Application
    Filed: February 12, 2001
    Publication date: September 13, 2001
    Inventor: Karel Elbert Kuijk
  • Patent number: 6285127
    Abstract: A flat display device, preferably of the PALC type, in which the plasma channels are formed by etching laterally-spaced slots in a spacer plate, attaching a thin dielectric sheet over the etched spacer plate, and bonding the etched spacer plate to a transparent substrate such that each channel is formed by the portion of the substrate between flanking walls formed by the etched slots in the spacer plate, adjacent flanking walls in the spacer plate, and the overlying portion of the thin dielectric sheet. By positioning the flanking walls between channel electrode pairs, thus providing glass-to-glass interfaces, anodic bonding can be employed to assemble the three channel elements. Etching can be simplified by pre-attaching the unetched channel plate to the substrate or thin dielectric cover sheet with an intervening etch stop, and etching in situ using the etch stop to prevent etching of the substrate or thin dielectric cover sheet.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: September 4, 2001
    Assignee: Philips Electronics North America Corp.
    Inventors: Babar A. Khan, Henri R. J. R. Van Helleputte, Adrianus L. J. Burgmans, Karel Elbert Kuijk, Petrus F. G. Bongaerts, Jacob Bruinink
  • Patent number: 6225029
    Abstract: An electronic array of data elements, in particular, a flat display device preferably of the PALC type in which the plasma channels are defined by walls of an organic material, preferably a polyimide material. A protective layer is provided over the polyimide walls to prevent deterioration. Spaced electrode portions are preferably provided on facing surfaces of the walls. The preferred method is to lay down a thick layer of polyimide material and a thin resist over the polyimide layer, pattern the resist, and then use the resist to pattern the polyimide layer in the shape of the desired walls. The walls are then covered with a thin dielectric sheet-like member to form the plasma channels.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: May 1, 2001
    Assignee: Philips Electronics North America Corp.
    Inventors: Petrus Franciscus Gerardus Bongaerts, Henri R. J. R. Van Helleputte, Adrianus Leonardus Josephus Burgmans, Jacob Bruinink, Babar Ali Khan, Karel Elbert Kuijk
  • Patent number: 5914562
    Abstract: A process for fabricating the channel substrate of a plasma-addressed electro-optic display device comprising a layer of electro-optic material, data electrodes coupled to the electro-optic layer and adapted to receive data voltages for activating portions of the electro-optic layer, and a plurality of plasma channels extending generally transverse to the data electrodes for selectively switching on said electro-optic portions and closed off by a thin dielectric sheet, typically a thin glass sheet. The channel substrate is fabricated using anodic bonding to attach the thin glass sheet to an etched or walled preferably glass substrate containing the channels. This reduces stresses in the thin glass sheet. Reduced stress allows post processing of the thin sheet, particularly further etching to reduce its thickness.
    Type: Grant
    Filed: February 6, 1995
    Date of Patent: June 22, 1999
    Assignees: Philips Electronics North America Corporation, Tektronix, Inc.
    Inventors: Babar Ali Khan, Jacob Bruinink, Adrianus Leonardus Josephus Burgmans, Henri Roger Jules Richard Van Helleputte, Petrus Franciscus Gerardus Bongaerts, Karel Elbert Kuijk, Thomas Stanley Buzak, Kevin John Ilcisin, Paul Christopher Martin
  • Patent number: 5868811
    Abstract: A flat display device, preferably of the PALC type, in which the plasma channels are formed by etching in a substrate laterally-spaced channels and bonding a thin dielectric sheet over the etched substrate. Adjoining each of the channels are shallow ledges, also formed by etching, which serve as recessed areas to receive enlarged ends serving as contact pads for each of the electrodes. Holes are formed in the thin dielectric sheet and contact material deposited on the bonded thin dielectric sheet such that the deposited material makes electrical contact with the underlying electrode contact pads and seals off the holes, which allows a plasma-forming atmosphere to be provided in the channels. This arrangement results in a glass-to-glass interface between the substrate and the thin dielectric sheet, which allows anodic bonding to be employed to assemble the two elements and thus eliminates the frit glass sealing process required in other constructions.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: February 9, 1999
    Assignee: Philips Electronics North America Corporation
    Inventors: Babar Ali Khan, Henri R. J. R. Van Helleputte, Adrianus L. J. Burgmans, Petrus F. G. Bongaerts, Karel Elbert Kuijk, Jacob Bruinink
  • Patent number: 5835167
    Abstract: A plasma-addressed liquid crystal color display device comprising a layer of liquid crystal material, data electrodes coupled to the liquid crystal layer and adapted to receive data voltages for activating pixels of the liquid crystal layer, and a plurality of ionizable-gas-filled plasma channels extending generally transverse to the data electrodes for selectively switching on said liquid crystal pixels. The plasma channels are sealed off by a thin dielectric sheet, and a color filter layer is provided in the device through which changes in the attenuation of the liquid crystal pixels may be viewed to obtain a color image. To reduce the magnitude of the data voltages needed to activate the device, the device layers are configured and given compositions such that a much higher fraction of the applied data voltages appears across the liquid crystal layer thereby allowing a smaller data voltage to be used to obtain the same effect on the liquid crystal pixels.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: November 10, 1998
    Assignee: Philips Electronics North America
    Inventors: Petrus Franciscus Gerardus Bongaerts, Jacob Bruinink, Adrianus Leonardus Josephus Burgmans, Henri Roger Jules Richard Van Helleputte, Babar Ali Khan, Karel Elbert Kuijk, Thomas Stanley Buzak, Kevin John Ilcisin, Paul Christopher Martin
  • Patent number: 5808413
    Abstract: A flat display device preferably of the PALC type in which the plasma channels are defined by walls of an organic material, preferably a polyimide material. A protective layer is provided over the polyimide walls to prevent deterioration. Spaced electrode portions are preferably provided on facing surfaces of the walls. The preferred method is to lay down a thick layer of polyimide material and a thin resist over the polyimide layer, pattern the resist, and then use the resist to pattern the polyimide layer in the shape of the desired walls. The walls are then covered with a thin dielectric sheet-like member to form the plasma channels.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: September 15, 1998
    Assignee: Philips Electronics North America Corporation
    Inventors: Petrus Franciscus Gerardus Bongaerts, Henri R. J. R. Van Helleputte, Adrianus Leonardus Josephus Burgmans, Jacob Bruinink, Babar Ali Khan, Karel Elbert Kuijk