Patents Examined by Tarifor R. Chowdhury
  • Patent number: 6788355
    Abstract: A method for fabricating an active matrix LCD panel for use in an active matrix LCD device includes the step of forming a passivation layer acting as a channel protection layer for protecting an amorphous silicon active layer, thereby reducing the number of photolithographic steps. A transparent conductive film is used for forming a gate electrode and a pixel electrode before formation of an amorphous silicon film for the TFTs.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: September 7, 2004
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Satoshi Ihida, Hirotaka Yamaguchi, Hiroaki Tanaka, Takasuke Hayase, Hiroshi Kanou, Wakahiko Kaneko, Tae Miyahara, Michiaki Sakamoto, Shinichi Nakata
  • Patent number: 6734923
    Abstract: A stereoscopic liquid crystal display device and method using a liquid crystal polymer film. Light transmitted through first and second micro-polarizing regions have different phases from each other, and light with different polarization properties is emitted.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: May 11, 2004
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Soon-Bum Kwon, Jin-Hee Jung, Hyung-Gi Hong
  • Patent number: 6731352
    Abstract: A six mask-steps method for fabricating liquid crystal display is described. A driving area and a pixel area are defined by a first mask step. Gates on the driving/pixel area and upper electrodes of capacitors on the pixel area are defined by a second mask step. Then, using the gates and the upper electrodes as a mask, a source/drain, channel region and lower electrode are formed in the driving/pixel area by an ion-doping process. A second insulation layer is formed and covers the insulation substrate. A plurality of first openings is formed by the third mask step and the gate and the source/drain are exposed. A second conductive layer is formed and covers the second insulation layer and the first opening is filled. Then, the second conductive layer is patterned, and a source/drain line is formed and contacts electrically with the source/drain by the fourth mask step. A dielectric layer is formed and covers the second insulation layer and the second conductive layer; the dielectric layer has a planar surface.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: May 4, 2004
    Assignee: Toppoly Optoelectronics Corp.
    Inventors: Chu-Jung Shih, Gwo-Long Lin, I-Min Lu, I-Wei Wu
  • Patent number: 6091463
    Abstract: A diffractive spatial light modulator includes: a layer of electro-optic material; a first electrode arrangement substantially covering a first side of the layer; and a second electrode arrangement substantially covering a second side of the layer. The first electrode arrangement includes a plurality of sets of elongate electrodes, and the elongate electrodes of each of the sets are electrically connected together and interdigitated with the elongate electrodes of at least one of the other acts. The second electrode arrangement includes a plurality of discrete picture element electrodes.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: July 18, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Michael Geraint Robinson, Craig Tombling, Nicholas Mayhew, Mitsuhiro Koden, Michael John Towler
  • Patent number: 6084651
    Abstract: A liquid crystal display device of the present invention includes a liquid crystal display element composed of a pair of transparent substrates, each provided with a transparent electrode layer and an alignment layer on a surface facing the other substrate, and a liquid crystal layer enclosed therebetween, a pair of polarizers provided on both sides of the liquid crystal display element, and at least one optical phase difference plate having inclined refractive index ellipsoid, positioned between the liquid crystal display element and the pair of polarizers, wherein the alignment layer aligns in different directions divided liquid crystal layers which have been prepared by dividing the liquid crystal layer at different ratios with respect to each pixel, and the liquid crystal layer made of a liquid crystal material whose change in refractive index anisotropy .DELTA.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: July 4, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Motohiro Yamahara, Iichiro Inoue, Shigeaki Mizusima