Patents by Inventor Doo Lee

Doo Lee 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).

  • Publication number: 20130297014
    Abstract: The present disclosure provides an artificial iris prepared by forming a ring-shaped hydrophilic region on a biocompatible substrate, coating a curable material thereon and then coating a photoreactive material mimicking the iris frills through optical irradiation. The artificial iris may be implemented into the real human eye and is capable of regulating the intensity of the light reaching the retina through the pupil depending on the intensity of ambient light.
    Type: Application
    Filed: January 28, 2013
    Publication date: November 7, 2013
    Applicant: SNU R&DB FOUNDATION
    Inventors: Sin Doo LEE, Jun Hee NA
  • Patent number: 8436529
    Abstract: An organic light emitting display includes: an organic light emitting display panel including a display unit; pixel power source out lead bonding (OLB) pads located on first through fourth external side edges of the display unit to supply a pixel power to the display unit; pixel power source lines coupled to the pixel power source OLB pads to provide the pixel power to the display unit; pixel power supply flexible printed circuit boards bonded to the pixel power source OLB pads; signal OLB pads located on at least one external side edge among the first through fourth external side edges to supply a plurality of driving signals to the display unit; signal lines coupled to the signal OLB pads to provide the driving signals to the display unit; and tape carrier packages mounted with driving ICs and bonded to the signal OLB pads.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chun-Seok Ko, Jang-Doo Lee
  • Patent number: 8421353
    Abstract: Embodiments may include an OLED display including a substrate, a display unit over the substrate and including a plurality of pixels, a conductive contact layer outside the display unit at a distance from the display unit, and a sealing member facing the display unit and fixed to the substrate by the conductive contact layer. The sealing member may include a plurality of metal layers laminated with an insulating adhesive layer, the insulating adhesive layer being between the metal layers, and a supporting layer neighboring the metal layers with the insulating adhesive layer being between the supporting layer and the metal layers. The plurality of metal layers may be electrically connected to the display unit through the conductive contact layer.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 16, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Gyun Ra, Jang-Doo Lee, Chun-Seok Ko
  • Publication number: 20130088678
    Abstract: A liquid crystal display panel may include a first substrate, a second substrate facing the first substrate and including a plurality of colloidal particles obtained by thermally treating a surface of the second substrate facing the first substrate, and a liquid crystal layer interposed between the first and second substrates to contain liquid crystal molecules. The size of each of the plurality of colloidal particles may vary according to the length of time heat is applied.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 11, 2013
    Applicants: SNU R&DB FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyungho JUNG, Sin-Doo LEE, SeungChul PARK, Jun-Hee NA, Jinhwan Kim
  • Patent number: 8373617
    Abstract: The present invention relates to a stereoscopic image display device including an active barrier for varying a barrier display pattern so as to display various stereoscopic images. In further detail, the stereoscopic image display device includes a display panel, a barrier, a barrier driver, and a controller. A stereoscopic image is displayed on the display panel. The barrier is placed corresponding to the display panel, and includes a plurality of liquid crystal cells arranged in a matrix format. The barrier driver drives the barrier such that the barrier display pattern may be a display pattern corresponding to the image signal by controlling the respective plurality of liquid crystal cells to become selectively transparent or opaque based on the mode information signal.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Beom-Shik Kim, Jang-Doo Lee, Hyoung-Wook Jang, Hui Nam, Myoung-Seop Song
  • Publication number: 20130027640
    Abstract: A method for manufacturing a substrate for alignment of a liquid crystal may include: forming a vertical alignment layer on a substrate; performing an alignment process on the vertical alignment layer in a first direction; forming a protective layer at a partial region of the vertical alignment layer; performing an alignment process on other regions of the vertical alignment layer in a second direction; and removing the protective layer. A liquid crystal display device manufactured using the substrate for alignment of a liquid crystal ensures wide viewing angle and alignment stability with relatively simple processes as compared with the conventional vertically aligned (VA) mode liquid crystal display device.
    Type: Application
    Filed: August 4, 2010
    Publication date: January 31, 2013
    Applicant: SNU R&DB FOUNDATION
    Inventors: Sin-Doo Lee, Deog-Kyoon Jeong, Jun-Hee Na
  • Patent number: 8319480
    Abstract: The present disclosure is related to a power control apparatus and a method for controlling power, more specifically to a power control apparatus that controls the risk of overcurrent in a power generator when the voltage in the power grid is low. In accordance with an embodiment of the present disclosure, a power control apparatus that controls power in a power generation system including a generator generating power can include a current comparator, which calculates an error current by using a difference between a current measured at the generator and a rated current of the generator, a controlling unit, which calculates a real power value by receiving the error current and outputs a switch driving signal corresponding to the calculated real power value, a switch, which is operated by the switch driving signal, and a resistance device, which is coupled to the switch to consume the error current.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: November 27, 2012
    Assignee: Samsung Heavy Ind. Co., Ltd.
    Inventors: Hee-Sang Ko, Yun-Tae Kang, Jae-Doo Lee
  • Publication number: 20120293735
    Abstract: A display device includes a first substrate, a middle layer, a first liquid crystal layer, a second substrate, a pixel part and a second liquid crystal layer. A first common electrode is on the first substrate. The middle layer includes a lenticular array, and a control electrode on the lenticular array. The control electrode faces the first common electrode. The first liquid crystal layer is between the middle layer and the first substrate, and a second common electrode is on a back side of the middle layer. The pixel part includes a plurality of pixel electrodes on the second substrate and facing the second common electrode. The second liquid crystal layer is between the second common electrode and the pixel part.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Applicants: SNU R&DB FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyungho JUNG, Sin-Doo LEE, Jun-Hee NA, Jinhwan KIM
  • Patent number: 8305370
    Abstract: A display driven by a data signal and a light emission signal may be controlled by a control system including a first through fourth controller. The first controller may select a gamma value in accordance with ambient illumination and output a corresponding gamma compensation signal to control a gradation voltage of input image data. The second controller may compare the ambient illumination with a reference value, generate a selection signal in response thereto, and provide changed image data obtained by changing input image data in accordance with the selection signal as the data signal. The third controller may apply a scaling factor to the input image data generated from extracted features related to the input image data and a scale ratio obtained from the extracted features, and output scaled image data as the data signal. The fourth controller may control a pulse width of the emission control signal.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: June-young Song, Young-jong Park, Jang-doo Lee
  • Patent number: 8279221
    Abstract: A stereoscopic image display device displays a stereoscopic image by generating stereoscopic image data based on 3D graphics data. The stereoscopic image display device includes a display unit for displaying an image, a driver, and a controller. The controller receives a synchronization signal, the 3D graphics data, and a user selection parameter for modifying a stereoscopic effect level, and outputs a control signal based on the synchronization signal and a stereoscopic image data signal, which is generated by combining left eye image data and right eye image data generated through performing matrix operations on the 3D graphics data and the user selection parameter, to the driver. The driver drives the display unit based on the control signal and the stereoscopic image data signal to display the stereoscopic image on the display unit.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: October 2, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung-Seop Song, Jang-Doo Lee, Hyoung-Wook Jang, Hui Nam, Beom-Shik Kim
  • Patent number: 8274453
    Abstract: Disclosed are an organic electro luminescence display and a driving method of the same. The present invention provides an organic electro luminescence display including a pixel unit for displaying an image to correspond to a scan signal, a light emission control signal and a data line. The image is composed of a plurality of frames. The organic electro luminescence display of the present invention includes a scan driver for supplying the scan signal and the light emission control signal to the pixel unit, a data driver for generating a data signal with a video data to supply the generated data signal to the pixel unit, a control unit for controlling a pulse width of the light emission control signal using a frame data which is the sum of the video data inputted to one frame and controlling one frame time according to the size of the frame data, and a power supply unit for supplying a first power and a second power to the pixel unit.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: September 25, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Young-jong Park, Jang-doo Lee
  • Patent number: 8269211
    Abstract: An organic electronic device including: a first layer including a conductive or semiconductive organic material; a second layer including a conductive or semiconductive inorganic material, and in contact with the first layer; and an interface layer between the first layer and the second layer, wherein the interface layer includes a conductive or semiconductive organic material and a conductive or semiconductive inorganic material.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: September 18, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sin-Doo Lee, Jin-Hyuk Bae
  • Publication number: 20120170331
    Abstract: The present disclosure is related to a power control apparatus and a method for controlling power, more specifically to a power control apparatus that controls the risk of overcurrent in a power generator when the voltage in the power grid is low. In accordance with an embodiment of the present disclosure, a power control apparatus that controls power in a power generation system including a generator generating power can include a current comparator, which calculates an error current by using a difference between a current measured at the generator and a rated current of the generator, a controlling unit, which calculates a real power value by receiving the error current and outputs a switch driving signal corresponding to the calculated real power value, a switch, which is operated by the switch driving signal, and a resistance device, which is coupled to the switch to consume the error current.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Applicant: Samsung Heavy Ind. Co., Ltd.
    Inventors: Hee-Sang KO, Yun-Tae KANG, Jae-Doo LEE
  • Patent number: 8207961
    Abstract: A stereoscopic image display device for displaying a three dimensional (3D) stereoscopic image in real-time by using a 3D graphic contained within a 2D image. The stereoscopic image display device includes a controller, a 3D graphic processor, a driver, and a display unit. The controller receives 3D graphic data and a synchronization signal, and outputs a control signal and the 3D graphic data. The 3D graphic processor generates a plurality of stereoscopic matrices used to generate 3D stereoscopic image data for a plurality of viewing points according to the control signal, and transforms the 3D graphic data into 3D stereoscopic image data using the plurality of stereoscopic matrices. The driver generates a driving signal based on the image data output from the 3D graphic processor and the output control signal. The display unit displays an image corresponding to the image data according to the driving signal.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: June 26, 2012
    Assignees: Samsung Mobile Display Co., Ltd., Nexuschips Co., Ltd.
    Inventors: Myoung-Seop Song, Jang-Doo Lee, Hyoung-Wook Jang, Hag-Keun Kim, Duck-Myung Lee, Han-Jun Choi, Hyun-Sook Kim, Woo-Jong Lee
  • Publication number: 20120146491
    Abstract: Embodiments may include an OLED display including a substrate, a display unit over the substrate and including a plurality of pixels, a conductive contact layer outside the display unit at a distance from the display unit, and a sealing member facing the display unit and fixed to the substrate by the conductive contact layer. The sealing member may include a plurality of metal layers laminated with an insulating adhesive layer, the insulating adhesive layer being between the metal layers, and a supporting layer neighboring the metal layers with the insulating adhesive layer being between the supporting layer and the metal layers. The plurality of metal layers may be electrically connected to the display unit through the conductive contact layer.
    Type: Application
    Filed: September 23, 2011
    Publication date: June 14, 2012
    Inventors: Dong-Gyun Ra, Jung-Doo Lee, Chun-Seok Ko
  • Publication number: 20120132276
    Abstract: The invention relates to a dye-sensitized solar cell and a module using the same and more particularly, to a dye-sensitized solar cell in which a photoelectrode substrate and a catalyst electrode substrate are spaced apart from each other by a separating space and coupled together by an encapsulating material and the separating space is filled with an electrolyte, characterized in that the electrolyte contains optical beads, and a module using the same. Thus, light passing through the photoelectrode substrate is refracted or reflected by the optical beads, and irradiated onto the photoelectrode substrate, thereby to improve the efficiency of the solar cell. Particularly, the efficiency of a dye-sensitized solar cell for a BIPV system is more effectively improved, said solar cell not having a separate scattering layer for maintaining the translucency thereof.
    Type: Application
    Filed: July 30, 2010
    Publication date: May 31, 2012
    Applicant: DONGJIN SEMICHEM CO., LTD.
    Inventors: Ho-gi Bae, Jong-bok Kim, Hyun-Cheol An, Kee-Doo Lee
  • Patent number: 8174564
    Abstract: A three-dimensional display device includes an image display portion displaying a left eye image and a right eye image; and a parallax barrier facing the image display portion and directing the left eye image and the right eye image displayed by the image display portion towards a left eye and a right eye of a user, respectively. The parallax barrier may be formed with a liquid crystal display of a normally black mode of transmission.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: May 8, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Beom-Shik Kim, Jang-Doo Lee, Hyoung-Wook Jang, Hui Nam, Myoung-Seop Song, Ja-Seung Ku, Hyo-Jin Lee
  • Patent number: 8159196
    Abstract: The present disclosure is related to a power control apparatus and a method for controlling power, more specifically to a power control apparatus that controls the risk of overcurrent in a power generator when the voltage in the power grid is low. In accordance with an embodiment of the present disclosure, a power control apparatus that controls power in a power generation system including a generator generating power can include a current comparator, which calculates an error current by using a difference between a current measured at the generator and a rated current of the generator, a controlling unit, which calculates a real power value by receiving the error current and outputs a switch driving signal corresponding to the calculated real power value, a switch, which is operated by the switch driving signal, and a resistance device, which is coupled to the switch to consume the error current.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: April 17, 2012
    Assignee: Samsung Heavy Ind. Co., Ltd.
    Inventors: Hee-Sang Ko, Yun-Tae Kang, Jae-Doo Lee
  • Patent number: 8154543
    Abstract: A stereoscopic image display device includes a display panel including a plurality of left eye pixels and a plurality of right eye pixels, a memory including a left eye image section for storing data corresponding to the left eye pixels and a right eye image section for storing data corresponding to the right eye pixels, a geometric engine for converting an input 3D image data into left eye 3D image data corresponding to the left eye pixels or right eye 3D image data corresponding to the right eye pixels, and a rendering engine for calculating a coordinate value and a color information value to be stored in the left eye section or the right eye section by using coordinate and color information of the left eye 3D image data or the right eye 3D image data, and for storing the color information value in the memory based on the coordinate value.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: April 10, 2012
    Assignees: Samsung Mobile Display Co., Ltd., Nexuschips Co., Ltd.
    Inventors: Myoung-Seop Song, Jang-Doo Lee, Hyoung-Wook Jang, Woo-Jong Lee, Hyun-Sook Kim, Hag-Keun Kim, Duck-Myung Lee, Han-Jun Choi
  • Publication number: 20120051985
    Abstract: Provided is a method for manufacturing liquid droplet microarrays, including: providing a lower substrate on which microstructures are patterned; providing an upper substrate to which one or more liquid path lines and a liquid reservoir are linked at both sides thereof; placing the upper substrate over the lower substrate; and arranging liquid droplets in microarrays on the structures of the lower substrate by allowing a liquid contained in the liquid reservoir to flow though the liquid path lines. Provided also are liquid droplet microarrays obtained by the method, a device for delivering a material including the liquid droplet microarrays, and a method for delivering a material through the device.
    Type: Application
    Filed: August 24, 2011
    Publication date: March 1, 2012
    Applicant: SNU R&DB FOUNDATION
    Inventors: Sin-Doo LEE, Sang-Wook LEE, Seung Chul PARK