Patents by Inventor Je Hong Kim

Je Hong Kim 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: 9398666
    Abstract: A direct-view display apparatus includes a transparent substrate, an internal light source, a plurality of light modulators coupled to the transparent substrate, and a controller for controlling the states of the plurality of light modulators and the internal light source. The controller is configured to cause the display to transition from one of a transmissive, reflective and transflective mode, to a second of said modes.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: July 19, 2016
    Assignee: Pixtronix, Inc.
    Inventors: Jignesh Gandhi, Nesbitt W. Hagood, IV, Mark Douglas Halfman, Je Hong Kim
  • Patent number: 9261694
    Abstract: Display devices incorporating light modulators are disclosed along with methods of manufacturing such devices. According to some aspects of the invention, a control matrix for controlling light modulators of a display includes a light absorbing layer that includes a material having a substantially light absorbing property.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: February 16, 2016
    Assignee: Pixtronix, Inc.
    Inventors: Richard S. Payne, Je Hong Kim, Jignesh Gandhi, Mark B. Andersson, Javier Villarreal
  • Patent number: 9243774
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: January 26, 2016
    Assignee: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Patent number: 8545084
    Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose arrangement and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: October 1, 2013
    Assignee: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20130250619
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Application
    Filed: May 10, 2013
    Publication date: September 26, 2013
    Applicant: PIXTRONIX, INC.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Patent number: 8441602
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 14, 2013
    Assignee: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20130082607
    Abstract: A direct-view display apparatus includes a transparent substrate, an internal light source, a plurality of light modulators coupled to the transparent substrate, and a controller for controlling the states of the plurality of light modulators and the internal light source. The controller is configured to cause the display to transition from one of a transmissive, reflective and transflective mode, to a second of said modes.
    Type: Application
    Filed: March 11, 2011
    Publication date: April 4, 2013
    Applicant: Pixtronix, Inc.
    Inventors: Jignesh Gandhi, Nesbitt W. Hagood, IV, Mark Douglas Halfman, Je Hong Kim
  • Publication number: 20120300497
    Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose arrangement and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.
    Type: Application
    Filed: August 9, 2012
    Publication date: November 29, 2012
    Applicant: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20120275184
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Application
    Filed: July 6, 2012
    Publication date: November 1, 2012
    Applicant: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Patent number: 8262274
    Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose density and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: September 11, 2012
    Assignee: Pitronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Patent number: 8248560
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: August 21, 2012
    Assignee: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20110242844
    Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose density and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 6, 2011
    Applicant: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20110205756
    Abstract: Apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors. The prismatic optical structures may include a plurality of rear-facing prisms and/or front-facing prisms, each with an associated prism apex angle. The prism apex angle for each of the prisms may be selected such that on-axis brightness intensity and/or total optical power extraction of the display are improved.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 25, 2011
    Applicant: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20110122474
    Abstract: Display devices incorporating light modulators are disclosed along with methods of manufacturing such devices. According to some aspects of the invention, a control matrix for controlling light modulators of a display includes a light absorbing layer that includes a material having a substantially light absorbing property.
    Type: Application
    Filed: January 5, 2011
    Publication date: May 26, 2011
    Applicant: Pixtronix, Inc.
    Inventors: Richard S. Payne, Je Hong Kim, Jignesh Gandhi, Mark B. Andersson, Javier Villarreal
  • Patent number: 7649589
    Abstract: A liquid crystal display module device includes a light-guide plate, a lamp disposed along one side of the light-guide plate, and a plurality of lamp holders enclosing opposing end portions of the lamps, wherein the lamp holders include transparent material.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: January 19, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Je Hong Kim, Seong Man Jeon
  • Publication number: 20090257245
    Abstract: Improved apparatus and method for collecting and directing light from a source via a light guide and modulated display assembly in an efficient manner through the design and use of prismatic optical structures, diffusers and/or light redirectors.
    Type: Application
    Filed: October 24, 2008
    Publication date: October 15, 2009
    Applicant: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Publication number: 20080094853
    Abstract: Light guides and backlight systems are disclosed that include one or more groups of geometric light redirectors whose density and/or orientation across the surface of a light guide varies to improve light emission uniformity and to reduce visual artifacts.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 24, 2008
    Applicant: Pixtronix, Inc.
    Inventors: Je Hong Kim, Jignesh Gandhi
  • Patent number: 7104679
    Abstract: There is provided a backlight unit that is capable of making it possible to highly condense light while simultaneously reducing costs. A backlight unit according to an embodiment of the present invention includes a light source for generating light; a lamp housing installed to cover the light source and for reflecting the light; and a light guide panel whereon there are formed a plurality of engraved patterns with a specific gap and a specific depth at the lower surface thereof, and wherein the vertical angle of the engraved pattern, which faces an out-coming surface of the light guide panel, is in a range of 30˜95°. Accordingly, it can be applicable to display panels of various sizes and a picture is improved at the same time. Also, in the backlight unit, it is possible to get rid of at least one of a prism sheet, a diffusion sheet and a reflecting sheet, thereby reducing costs.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: September 12, 2006
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Hyun Ho Shin, Je Hong Kim, Seong Man Jeon
  • Patent number: 6879355
    Abstract: In a black light unit, a light-guide plate is provided with a cone pattern to uniformly guide a light beam passing through a light input. A light-path converter controls a progress direction of the light beam in such a manner that the light beam outputted from the light-guide plate is progressed in a direction perpendicular to a liquid crystal panel. A diffusion sheet diffuses the light beam passing through the light-path converter into the liquid crystal panel. A reflection of the light-guide pattern and wall surface and the bright lines of the light input can be minimized. The light efficiency can be improved and the manufacturing cost can be reduced.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: April 12, 2005
    Assignee: LG. Philips LCD Co., Ltd.
    Inventor: Je Hong Kim
  • Publication number: 20040183956
    Abstract: A liquid crystal display module device includes a light-guide plate, a lamp disposed along one side of the light-guide plate, and a plurality of lamp holders enclosing opposing end portions of the lamps, wherein the lamp holders include transparent material.
    Type: Application
    Filed: December 23, 2003
    Publication date: September 23, 2004
    Applicant: LG.PHILIPS LCD CO., LTD
    Inventors: Je Hong Kim, Seong Man Jeon