Patents by Inventor Ruibo Lu

Ruibo Lu 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: 7538844
    Abstract: A multi-domain in-plane-switching liquid crystal display with small color shift, wide viewing angle and fast response. The structure of the multi-domain in-plane switching liquid crystal displays comprises plural chevron-shaped common electrodes and chevron-shaped pixel electrodes, arranged alternatingly to form a multi-domain liquid crystal distributions. In an embodiment the structure includes a polarizer and an analyzer and the liquid crystal material is homogenously aligned. In another embodiment the structure includes alignment films for vertically aligning the liquid crystal material and crossed linear polarizers, circular polarizers or a combination of linear polarizers and compensation film. In another embodiment, the multi-domain in-plane switching liquid crystal display provides at least two different uniformly aligned liquid crystal domains, for a double multi-domain-In-plane switching LC display.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: May 26, 2009
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Ruibo Lu, Shin-Tson Wu, Qi Hong
  • Publication number: 20090066889
    Abstract: Structures, devices, systems and methods of using multi-domain vertical alignment liquid crystal displays with high transmittance, high contrast ratio and wide view angle in which at least one of the electrode substrates has circular or ring-shaped openings, such as holes or slits. Circular or ring-shaped patterns for openings and electrodes have not been used in the construction of a liquid crystal display. The new multi-domain vertical alignment (MDVA) liquid crystal display is particularly suitable for liquid crystal display television and computer monitor applications.
    Type: Application
    Filed: October 3, 2008
    Publication date: March 12, 2009
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu, Thomas X. Wu
  • Publication number: 20090040432
    Abstract: A transflective display includes pixels each including a reflective (R) sub-pixel, a transmissive (T) sub-pixel, and electrodes having features to cause multiple domains to form in a liquid crystal layer of the R sub-pixel and the T sub-pixel. The electrodes in the R sub-pixels have features that are different from features of the electrodes in the T sub-pixel to cause the liquid crystal layer in the R sub-pixel to have an optical phase retardation that is between 20% to 80% of an optical phase retardation of the liquid crystal layer in the T sub-pixel. The R sub-pixel and the T sub-pixel have substantially the same cell gap and are driven by the same pixel voltage.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Inventors: Ruibo Lu, Shin-Tson Wu, Wang-Yang Li, Chung-Kuang Wei
  • Patent number: 7486341
    Abstract: Systems, methods, apparatus and devices for head mounted stereoscopic 3-D display devices using the tunable focus liquid crystal micro-lens array eye to produce eye accommodation information. A liquid crystal display panel displays stereoscopic images and uses tunable liquid crystal micro-lens array to change the diopter of the display pixels to provide eye accommodation information. The head mounted display device includes a planar display screen, planar tunable liquid crystal micro-lens array and planar black mask. The display device may optionally include a bias lens. In an embodiment, the display device also includes a backlight and a prism sheet for displaying the images on the display screen. The display screen, tunable liquid crystal micro-lens array, black mask and optional backlight and prism may be flat or curved.
    Type: Grant
    Filed: November 3, 2005
    Date of Patent: February 3, 2009
    Assignees: University of Central Florida Research Foundation, Inc., Toppely Optoelectronics Corp.
    Inventors: Qi Hong, Ruibo Lu, Thomas Xinzhang Wu, Shin-Tson Wu
  • Publication number: 20090021660
    Abstract: Methods, systems and apparatus for a liquid crystal display panel having a first substrate with a color filter, an over-coating and a common electrode. The second substrate includes an insulating layer surface facing the first substrate, a pixel electrode, a plurality of common and pixel domain guides formed on the common and the pixel electrodes, a plurality of electric shields on one of the common or pixel electrodes and a liquid crystal layer vertically aligned between the first and second substrates. The panel also includes a drive circuit for applying a voltage to generate an electric field to control liquid crystal molecule orientation corresponding to the plurality of domain guides and electric shields to form a multi-domain liquid crystal display panel device. The plural domain guides are either protrusions or slits formed in the common electrode and the pixel electrode to form the multi-domain vertical alignment liquid crystal device.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 22, 2009
    Inventors: Ruibo Lu, Seung-Hee Lee, Shin-Tson Wu, Wang-Yang Li, Chung-Kuang Wei
  • Publication number: 20080309854
    Abstract: Apparatus, devices, systems, and methods for wide viewing angle and broadband circular polarizers in transflective displays. A liquid crystal display configuration can include two stacked circular polarizers, each having a linear polarizer, a half-wave plate and a quarter-wave plate wherein two linear polarizers are crossed to each other, two half-wave plates are made of uniaxial A plates with opposite optical birefringence (one positive and one negative type), and two quarter-wave plates are made of uniaxial A plates with opposite optical birefringence (one positive and one negative type). The configurations can generate wide viewing angles and broadband properties and are suitable for display applications that require circular polarizers.
    Type: Application
    Filed: June 15, 2007
    Publication date: December 18, 2008
    Inventors: Zhibing Ge, Meizi Jiao, Ruibo Lu, Thomas Xinzhang Wu, Shin-Tson Wu, Wang-Yang Li, Chung-Kuang Wei
  • Patent number: 7466385
    Abstract: Structures, devices, systems and methods of using multi-domain vertical alignment liquid crystal displays with high transmittance, high contrast ratio and wide view angle in which at least one of the electrode substrates has circular or ring-shaped openings, such as holes or slits. Circular or ring-shaped patterns for openings and electrodes have not been used in the construction of a liquid crystal display. The new multi-domain vertical alignment (MDVA) liquid crystal display is particularly suitable for liquid crystal display television and computer monitor applications.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: December 16, 2008
    Assignees: University of Central Florida Research Foundation, Inc., Toppoly Optoelectronics Corp.
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu, Thomas X. Wu
  • Patent number: 7450208
    Abstract: A representative device comprises a plurality of pixel units configured for use in a vertical alignment liquid crystal display, wherein a first of the pixel units comprises a first substrate, a second substrate and liquid crystal material. The first substrate comprises a pixel layer thereon, wherein the pixel layer comprises a thin film transistor and a pixel electrode, and the pixel electrode in the first of the pixel units has first openings therein. The second substrate comprises a common electrode thereon, wherein the common electrode has second openings therein, and the second openings and the first openings are arranged in an overlying and cross-over relationship with respect to each other. The liquid crystal layer is between the first and second substrates.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: November 11, 2008
    Assignee: TPO Displays Corp.
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu
  • Publication number: 20080239490
    Abstract: A circular polarizer comprising a single linear polarizer producing a linear state of polarization and at least one phase retardation film layered with the single linear polarizer. In a first embodiment, the at least one phase retardation film includes at least one uniaxial A-plate phase retardation film and at least one uniaxial C-plate phase retardation film. In a second embodiment of the invention, the circular polarizer includes a linear polarizer and at least one biaxial phase retardation film layered with the linear polarizer. In another example of the circular polarize of the second embodiment, at least one uniaxial A-plate phase retardation film and/or at least one uniaxial C-plate phase retardation film is also layer with the linear polarize and the biaxial phase retardation film.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 2, 2008
    Inventors: Qi Hong, Ruibo Lu, Xinyu Zhu, Thomas X. Wu, Shin-Tson Wu
  • Publication number: 20080231781
    Abstract: A transflective display includes pixels each including a first electrode, a second electrode, a liquid crystal layer associated with the first and second electrodes, and a conductive reflective layer between the liquid crystal layer and the second electrode to reflect ambient light. The conductive reflective layer is insulated from the second electrode and covers less than all of the second electrode to allow backlight to be transmitted through a portion of the pixel not covered by the conductive reflective layer.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 25, 2008
    Applicants: Chi Mei Optoelectronics Corporation, University of Central Florida Research Foundation, Inc.
    Inventors: Zhibing Ge, Xinyu Zhu, Ruibo Lu, Thomas Xinzhang Wu, Shin-Tson Wu, Wang-Yang Li, Chung-Kuang Wei
  • Patent number: 7414690
    Abstract: Structures, devices, systems and methods of using fringe field switching mode liquid crystal display (LCD) in which the electrodes have a trapezoidal structure. The disclosed fringe field switching mode LCD includes common electrodes and pixel electrodes arranged on a back substrate to produce a fringe field. Each electrode is comprised of alternating sections of main bone and trapezoidal electrode.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: August 19, 2008
    Assignees: Research Foundation of the University of Central Florida, Inc., Toppoly Optelectronics Corp.
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu
  • Patent number: 7405796
    Abstract: An electrode array structure in a pixel area of a fringe field switching mode LCD (FFS-LCD). A comb-shaped common electrode includes a first bar extending in a first direction and a plurality of first teeth extending in a second direction from the first bar, wherein each first tooth comprises a first bone having a plurality of discontinuous first trapezoidal protrusions on each side thereof. A comb-shaped pixel electrode comprises a second bar extending in the first direction and a plurality of second teeth extending in the second direction from the second bar, wherein each second tooth comprises a second bone having a plurality of discontinuous second trapezoidal protrusions on each side thereof.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: July 29, 2008
    Assignee: TPO Displays Corp.
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu
  • Publication number: 20080049152
    Abstract: Systems, methods, apparatus and devices for head mounted stereoscopic 3-D display devices using the tunable focus liquid crystal micro-lens array eye to produce eye accommodation information. A liquid crystal display panel displays stereoscopic images and uses tunable liquid crystal micro-lens array to change the diopter of the display pixels to provide eye accommodation information. The head mounted display device includes a planar display screen, planar tunable liquid crystal micro-lens array and planar black mask. The display device may optionally include a bias lens. In an embodiment, the display device also includes a backlight and a prism sheet for displaying the images on the display screen. The display screen, tunable liquid crystal micro-lens array, black mask and optional backlight and prism may be flat or curved.
    Type: Application
    Filed: June 1, 2007
    Publication date: February 28, 2008
    Inventors: Qi Hong, Ruibo Lu, Thomas Wu, Shin-Tson Wu
  • Patent number: 7295274
    Abstract: A novel vertical alignment liquid crystal display with a structure having a flower-shaped vertical alignment (FVA) has the properties of fast response, high contrast ratio and a wide view angle. The method for making the device and structure of the FVA comprises the arrangement of: a first substrate with a protrusion shaped electrode as the pixel electrode; and a second substrate as the common electrode; aligning layers formed on said first and second substrates providing liquid crystal vertical alignment; liquid crystal materials filling a space between said first and second substrates as a liquid crystal cell; a linear polarizer and wide band quarter-wave film forming a circular polarizer; and, said circular polarizer disposed on exterior surfaces of said liquid crystal cell. When voltage is applied to the device, the liquid crystal (LC) director distribution looks like a flower blossom.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: November 13, 2007
    Assignees: University of Central Florida Research Foundation, Inc., AU Optronics Corp.
    Inventors: Shin-Tson Wu, Ruibo Lu, Qi Hong, Thomas X. Wu
  • Publication number: 20070206141
    Abstract: A representative device comprises a plurality of pixel units configured for use in a vertical alignment liquid crystal display, wherein a first of the pixel units comprises a first substrate, a second substrate and liquid crystal material. The first substrate comprises a pixel layer thereon, wherein the pixel layer comprises a thin film transistor and a pixel electrode, and the pixel electrode in the first of the pixel units has first openings therein. The second substrate comprises a common electrode thereon, wherein the common electrode has second openings therein, and the second openings and the first openings are arranged in an overlying and cross-over relationship with respect to each other. The liquid crystal layer is between the first and second substrates.
    Type: Application
    Filed: March 1, 2006
    Publication date: September 6, 2007
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu
  • Publication number: 20070195251
    Abstract: Systems for displaying images are provided. An exemplary system incorporates a vertical alignment liquid crystal display having a pixel unit. The pixel unit includes: a first substrate comprising a pixel layer thereon, wherein the pixel layer comprises a thin film transistor and a pixel electrode; a second substrate comprising a common electrode thereon; and a liquid crystal layer between the first and second substrates, wherein at least one of the pixel electrode and the common electrode has a plurality of holes therein, the holes being configured to align the liquid crystal layer.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventors: Ruibo Lu, Oi Hong, Shin-Tson Wu
  • Publication number: 20070097277
    Abstract: Systems, methods, apparatus and devices for head mounted stereoscopic 3-D display devices using the tunable focus liquid crystal micro-lens array eye to produce eye accommodation information. A liquid crystal display panel displays stereoscopic images and uses tunable liquid crystal micro-lens array to change the diopter of the display pixels to provide eye accommodation information. The head mounted display device includes a planar display screen, planar tunable liquid crystal micro-lens array and planar black mask. The display device may optionally include a bias lens. In an embodiment, the display device also includes a backlight and a prism sheet for displaying the images on the display screen. The display screen, tunable liquid crystal micro-lens array, black mask and optional backlight and prism may be flat or curved.
    Type: Application
    Filed: November 3, 2005
    Publication date: May 3, 2007
    Inventors: Qi Hong, Ruibo Lu, Thomas Wu, Shin-Tson Wu
  • Patent number: 7199852
    Abstract: Structures, devices, systems and methods of using fringe field switching mode liquid crystal display (LCD) in which the electrodes have a trapezoidal structure. The disclosed fringe field switching mode LCD includes common electrodes and pixel electrodes arranged on a back substrate to produce a fringe field. Each electrode is comprised of alternating sections of main bone and trapezoidal electrode.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: April 3, 2007
    Assignees: Research Foundation of the University of Central Florida, Incorporated, Toppoly Optoelectronics Corp.
    Inventors: Ruibo Lu, Qi Hong, Shin-Tson Wu
  • Publication number: 20060290853
    Abstract: A circular polarizer comprising a single linear polarizer producing a linear state of polarization and at least one phase retardation film layered with the single linear polarizer. In a first embodiment, the at least one phase retardation film includes at least one uniaxial A-plate phase retardation film and at least one uniaxial C-plate phase retardation film. In a second embodiment of the invention, the circular polarizer includes a linear polarizer and at least one biaxial phase retardation film layered with the linear polarizer. In another example of the circular polarize of the second embodiment, at least one uniaxial A-plate phase retardation film and/or at least one uniaxial C-plate phase retardation film is also layer with the linear polarize and the biaxial phase retardation film.
    Type: Application
    Filed: June 27, 2005
    Publication date: December 28, 2006
    Inventors: Qi Hong, Ruibo Lu, Xinyu Zhu, Thomas Wu, Shin-Tson Wu
  • Publication number: 20060244885
    Abstract: A multi-domain in-plane-switching liquid crystal display with small color shift, wide viewing angle and fast response. The structure of the multi-domain in-plane switching liquid crystal displays comprises plural chevron-shaped common electrodes and chevron-shaped pixel electrodes, arranged alternatingly to form a multi-domain liquid crystal distributions. In an embodiment the structure includes a polarizer and an analyzer and the liquid crystal material is homogenously aligned. In another embodiment the structure includes alignment films for vertically aligning the liquid crystal material and crossed linear polarizers, circular polarizers or a combination of linear polarizers and compensation film. In another embodiment, the multi-domain in-plane switching liquid crystal display provides at least two different uniformly aligned liquid crystal domains, for a double multi-domain-In-plane switching LC display.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 2, 2006
    Inventors: Ruibo Lu, Shin-Tson Wu, Qi Hong