Patents by Inventor Hye-In Choi

Hye-In Choi 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: 20080132138
    Abstract: A method of manufacturing a display device having a display panel that includes a first electrode, a light emitting layer formed on the first electrode, and a second electrode on the light emitting layer, the manufacturing method comprising: aging the display panel by applying a predetermined electrical signal and a predetermined temperature so that the luminance of the light emitting layer lies between about 10 nits and 10,000 nits.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Inventors: Sung-soo Lee, Jae-hoon Jung, Ji-hye Choi, Kyong-tae Park, Young-rok Song
  • Publication number: 20080117196
    Abstract: A display device includes a pixel having a switch device, a driving device connected to the switch device, and a light emitting element to emit light based on a data signal provided to the driving device, a scanning driver to provide a scanning signal to the switch device, and a data driver to provide the data signal to the driving device in response to the scanning signal. The light emitting element is provided with a forward bias for a display period and with a reverse bias for a non-display period. The reverse bias applied to the light emitting element restores the internal resistance of the light emitting element, thereby releasing the luminance decrease of the light emitting element.
    Type: Application
    Filed: July 10, 2007
    Publication date: May 22, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Soo LEE, Chang-Woong CHU, Ji-Hye CHOI
  • Publication number: 20080094321
    Abstract: An organic light emitting diode display includes a display region where a plurality of thin film transistors and a plurality of emission layers are formed, and a peripheral area formed along the circumference of the display area; a flexible conductive film that includes contact portions, each of which is formed on the corresponding anisotropic conductive film, has a conductive layer and an insulating layer covering the conductive layer, and has substantially the same layout as the voltage pads; an anisotropic conductive film that is formed on the voltage pads; and voltage pads that are formed in the peripheral area and that apply at least one of a driving voltage and a common voltage to the display region.
    Type: Application
    Filed: October 18, 2007
    Publication date: April 24, 2008
    Inventors: Kyong-Tae PARK, Chang-Mo Park, Ji-Hye Choi
  • Publication number: 20080042946
    Abstract: A display panel includes a plurality of data lines each extended in a first direction substantially parallel with each other, a plurality of driving voltage lines each extended substantially parallel with the plurality of data lines, a plurality of gate lines each extended in a second direction substantially perpendicular to the first direction and a plurality of unit pixels each including a plurality of sub-pixels, each sub-pixel of a corresponding unit pixel having two short sides defined by two adjacent data lines and two long sides defined by two adjacent gate lines. Each sub-pixel of the corresponding unit pixel includes a switching element electrically connected to a same data line of the two adjacent data lines and one of the two adjacent gate lines, and a driving element electrically connected to the switching element and a same driving voltage line, the driving element drives a light-emitting element.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 21, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyong-Tae Park, Beohm-Rock Choi, Young-Soo Yun, Sung-Soo Lee, Young-Rok Song, Ji-Hye Choi
  • Publication number: 20080018798
    Abstract: A display device and a driving method thereof are provided. The display device includes a plurality of pixels that displays a first color, a second color, a third color, and a white color; a signal processor that generates a white color output image signal based on three input image signals displaying the first to third colors, generates a white color temperature correcting constant based on the white color output image signal, and generates first color, second color, and third color output image signals that correct the first color, second color, and third color input image signals based on the white color temperature correcting constant; and a data driver that converts the output image signal to a data voltage and supplies the data voltage to the pixel to allow the pixel to display an image.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 24, 2008
    Inventors: Kyong-Tae Park, Beohm-Rock Choi, Sung-Soo Lee, Young-Rok Song, Ji-Hye Choi
  • Publication number: 20070296878
    Abstract: The present invention provides an electrical processing apparatus and method for electrically processing a display panel having an organic light-emitting layer. The method for electrically processing a display panel having an organic light-emitting layer includes dividing a light-emitting region of the display panel into a plurality of regions; and applying a voltage to at least one region of the plurality of regions where an amplitude of the voltage exceeds an amplitude of a driving voltage of the display panel. The electrical processing apparatus includes a display panel comprising an organic light-emitting layer, a light emitting region, and a plurality of regions, the plurality of regions being defined by dividing the light emitting region; a jig for holding the display panel; and a current supplying portion, wherein the current supplying portion supplies a current individually to each of the plurality of regions.
    Type: Application
    Filed: June 25, 2007
    Publication date: December 27, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Soo LEE, Beohm-Rock CHOI, Kyong-Tae PARK, Young-Rok SONG, Ji-Hye CHOI
  • Publication number: 20070296741
    Abstract: A display device and a driving method using four color pixels, a signal processor that converts three input image signals having gray levels to four output image signals that display four colors based on a look-up table without separate gamma conversion; and a data driver that generates a data voltage based on the output image signal and that supplies the data voltage to the pixels, thereby simplifying signal processing.
    Type: Application
    Filed: March 2, 2007
    Publication date: December 27, 2007
    Inventors: Kyong-Tae Park, Beohm-Rock Choi, II-Nam Kim, Sung-Soo Lee, Ji-Hye Choi
  • Patent number: 7257754
    Abstract: A semiconductor memory device includes a mode setting register for generating a parallel bit test signal and a code according to an externally applied mode setting register code in response to a mode setting command; a data input circuit for receiving and outputting at least one bit of externally applied data in response to a write command; and a test pattern data generating circuit for receiving the parallel bit test signal and a predetermined bit from the code to generate a test pattern data in response to the at least one bit of externally applied data received from the data input circuit.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: August 14, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moo-Sung Chae, Hye-In Choi
  • Publication number: 20070152723
    Abstract: A delay-locked loop (DLL) circuit capable of decreasing power consumption is provided. A DLL circuit includes a delay line, an output buffer, a replica circuit, a phase detector, a shift register and a replica control circuit. The delay line delays an external clock signal for a determined time to generate a first signal. The output buffer buffers the first signal to generate an internal clock signal. The replica circuit delays the first signal for a determined time to generate a feedback signal. The phase detector compares the feedback signal with the external clock signal to generate a shift control signal. The shift register performs a shifting operation based on the shift control signal to generate the plurality of delay control bits. The replica control circuit generates a replica control signal based on the external clock signal and a lock signal, to control the replica circuit.
    Type: Application
    Filed: December 7, 2006
    Publication date: July 5, 2007
    Inventors: Ji-Hyun Ahn, Jae-Ki Yoo, Hye-In Choi
  • Publication number: 20070120468
    Abstract: The present invention discloses a display apparatus including: an insulating substrate, a metal film formed on a first surface of the insulating substrate and comprising a magnetic substance, a thin film transistor formed on a second surface of the insulating substrate, a first passivation film formed on the thin film transistor, a pixel electrode electrically connected with the thin film transistor and forming a pixel region, an organic layer formed on the pixel electrode, and a common electrode formed on the organic layer.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 31, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Soo LEE, Jae-Hoon JUNG, Un-Cheol SUNG, Ji-Hye CHOI
  • Publication number: 20070108899
    Abstract: A display device includes a thin film transistor formed on a first insulating substrate, a first electrode electrically connected with the thin film transistor, an emission layer formed on the first electrode, a second electrode formed on the emission layer, an auxiliary electrode shaped like a mesh to at least partially expose the first electrode, the auxiliary electrode being electrically connected with the second electrode and receiving a common voltage therefrom, and a second insulating substrate placed on the auxiliary electrode. The exemplary embodiments of a display device, and a method of manufacturing the same, according to the present invention can apply a common voltage efficiently throughout the display and have an improved contrast ratio.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 17, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-hoon JUNG, Sung-soo LEE, Ji-hye CHOI
  • Publication number: 20060171315
    Abstract: A resource allocation device includes a database of user and service information, a resource allocation management unit for determining whether a service request agrees with a service level agreement and whether it accepts a resource allocation request, a service level agreement unit for negotiating the service level agreement with the user, sending the received service request to the resource allocation management unit, acquiring the result of the resource allocation request, and transmitting the result of the resource allocation request to the user, a routing information management unit for obtaining a network configuring information, storing the network configuring information in the database, discovering the path to provide the service and storing the discovered path in the database to be reused and a policy control management unit for deciding a policy according to whether the service request and the resource allocation request are accepted.
    Type: Application
    Filed: September 8, 2005
    Publication date: August 3, 2006
    Inventors: Da-Hye Choi, Hyun-Joo Kang, You-Hyeon Jeong, Tae-Man Han, Byeong-Sik Kim
  • Publication number: 20050108607
    Abstract: A semiconductor memory device includes a mode setting register for generating a parallel bit test signal and a code according to an externally applied mode setting register code in response to a mode setting command; a data input circuit for receiving and outputting at least one bit of externally applied data in response to a write command; and a test pattern data generating circuit for receiving the parallel bit test signal and a predetermined bit from the code to generate a test pattern data in response to the at least one bit of externally applied data received from the data input circuit.
    Type: Application
    Filed: September 29, 2004
    Publication date: May 19, 2005
    Inventors: Moo-Sung Chae, Hye-In Choi
  • Publication number: 20040267747
    Abstract: In a transaction processing system for processing a plurality of transactions in parallel with respect to hierarchical data, a copy of the hierarchical data is produced at a time of starting each transaction, and whether a collision between a reading or writing access to be made by a first transaction with respect to a copy and a writing or reading access made by the second transaction with respect to a copy will occur or not is judged and a processing for avoiding the collision is carried out when it is judged that the collision will occur. When the first transaction is to be finished normally, a writing access made by the first transaction with respect to a copy of the hierarchical data for the first transaction is reflected on the hierarchical data, as well as on a copy for the second transaction if the second transaction is not finished yet.
    Type: Application
    Filed: January 28, 2004
    Publication date: December 30, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Eun Hye Choi, Tatsunori Kanai