Patents by Inventor Sang-Jin Pak

Sang-Jin Pak 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: 20070097278
    Abstract: A display substrate reducing a cost price and produced conveniently by a simple process includes a base substrate, a supporting pattern, and a first and a second protrusion pattern. The display substrate has a touch screen function detecting a touch point and electrically connected at the touch point to an array substrate having a plurality of pixel portions, and first and second signal lines formed thereon. The supporting pattern is formed on a base substrate with a first length, and maintains a separation distance from the array substrate. The first and second protrusion patterns are formed on the base substrate with a second length, and electrically connected to the first and second signal lines respectively. The protrusion pattern and the supporting pattern are simultaneously formed, and thus the manufacturing process can be simplified.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 3, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Soo-Guy RHO, Jin JEON, Ji-Eun LEE, Sang-Jin PAK
  • Publication number: 20070091013
    Abstract: A liquid crystal display includes a first panel, a second panel facing and separated from the first panel, a liquid crystal layer interposed between the first and second panels, a plurality of sensor data lines formed on the second panel, a plurality of variable capacitors of which capacitance thereof is varied by pressure, the variable capacitors connected to the sensor data lines, a plurality of reference capacitors connected to the sensor data lines, and first reset transistors and second reset transistors connected to the sensor data lines and supplying a first reset voltage and a second reset voltage to the sensor data lines at different times, respectively.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 26, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Jin PAK, Joo-Hyung LEE, Myung-Woo LEE
  • Publication number: 20070046650
    Abstract: The present invention is related to a liquid crystal display. The liquid crystal display includes a display panel, a plurality of pixels formed on the display panel, a sensing unit disposed among the pixels and generating a sensor data signal based on a touch to the display panel, a plurality of image data lines connected to the pixels and transmitting image data signals, and a sensor data line connected to the sensing unit and transmitting the sensor data signal. The sensor data line is separated from an image data line adjacent thereto with respect to the pixel.
    Type: Application
    Filed: August 29, 2006
    Publication date: March 1, 2007
    Inventors: Myung-Woo Lee, Joo-Hyung Lee, Sang-Jin Pak, Kee-Han Uh
  • Publication number: 20070040814
    Abstract: A liquid crystal display having a touch screen includes a plurality of sensing data lines formed on a display panel, a plurality of variable capacitors connected to the sensing data lines and having capacitance that varies with a pressure, a plurality of reference capacitors connected to the sensing data lines, and a plurality of sensing signal output units each connected to the sensing data lines for generating output signals on the basis of sensing data signals that flow through the sensing data lines. The sensing signal output units change the amount of current based on the sensing data signals to reduce current corresponding to the output signals.
    Type: Application
    Filed: October 27, 2006
    Publication date: February 22, 2007
    Inventors: Joo-Hyung Lee, Sang-Jin Pak, Kee-Han Uh, Dong-Jin Jeong
  • Publication number: 20070030221
    Abstract: A liquid crystal display is provided. The liquid crystal display includes a first panel, a second panel facing and separated from the first panel, a liquid crystal layer interposed between the first and second panels, a plurality of variable capacitors that vary capacitance thereof by pressure, and a plurality of reference capacitors formed on the second panel and connected to the variable capacitors.
    Type: Application
    Filed: July 26, 2006
    Publication date: February 8, 2007
    Inventors: Sang-Jin Pak, Myung-Woo Lee, Kee-Han Uh, Joo-Hyung Lee
  • Publication number: 20070013819
    Abstract: A display panel includes a lower substrate, an upper substrate and a liquid crystal layer interposed therebetween. The lower substrate is divided into a display region for displaying an image and an adjacent peripheral region, and includes a plurality of pixel parts, a plurality of photo sensing parts, and a reflection preventing layer. The pixel parts are disposed in the display region for forming an image. The photo sensing parts are disposed in the display region for detecting the location of an object placed on or immediately adjacent to a surface of the display panel. The upper substrate faces the lower substrate, and includes a black matrix corresponding to the peripheral region. The reflection preventing layer is disposed in the peripheral region to prevent the black matrix from reflecting light back onto the photo sensing parts and thereby adversely affecting their operation.
    Type: Application
    Filed: July 12, 2006
    Publication date: January 18, 2007
    Inventors: Sang-Jin Pak, Myung-Woo Lee, Man-Seung Cho
  • Publication number: 20060279511
    Abstract: A shift register and a display device having the shift register are provided. The shift register has a plurality of stages which sequentially generate output signals in synchronization with a plurality of clock signals. Each of the stages includes an input unit for receiving a scan start signal or an output signal from a previous stage and outputting the scan start signal or the output signal as a first voltage, a first unit for passing at least two clock signals, a second unit for outputting at least one of the at least two clock signals or a second voltage in response to an output signal from a next stage, and an output unit for generating an output signal synchronized with at least one of the at least two clock signals in response to the outputs of the input unit and the second unit.
    Type: Application
    Filed: April 26, 2006
    Publication date: December 14, 2006
    Inventors: Kee-Han Uh, Sang-Jin Pak, Joo-Hyung Lee, Hyung-Guel Kim, Myung-Woo Lee
  • Publication number: 20060221040
    Abstract: A gate driver circuit includes a first shift register and a second shift register. The first shift register applies (4n?3)-th and (4n?2)-th gate signals to (4n?3)-th and (4n?2)-th gate lines, respectively, in response to a first clock signal, a second clock signal having a delayed phase by 1H time with respect to the first clock signal, and a third clock signal having opposite phase to the first clock signal. The second shift register applies (4n?1)-th and 4n-th gate signals to (4n?1)-th and 4n-th gate lines, respectively, in response to the first clock signal, the third clock signal, and a fourth clock signal having opposite phase to the second clock signal. Therefore, a number of transistors in the first and second shift registers may be reduced.
    Type: Application
    Filed: November 29, 2005
    Publication date: October 5, 2006
    Inventors: Sang-Jin Pak, Myung-Woo Lee, Hyung-Guel Kim, Kee-Han Uh, Dong-Jin Jeong, Joo-Hyung Lee
  • Publication number: 20060176266
    Abstract: A display panel includes an array substrate, an opposite substrate and a liquid crystal layer disposed between the array substrate and the opposite substrate. A sensing array outputs an initial voltage in response to an initial thickness of the liquid crystal layer during an initializing time and a sensing voltage in response to a varied thickness of the liquid crystal layer due to external force during a sensing time. A control part compares the sensing voltage with the initial voltage, determines whether the external force is applied to the display panel, and generates information indicating a position to which the external force is applied. Thus, the display apparatus may improve sensing ability to an external signal inputted through the display panel thereof.
    Type: Application
    Filed: January 5, 2006
    Publication date: August 10, 2006
    Inventors: Sang-Jin Pak, Myung-Woo Lee, Young-Ok Cha, Kee-Han Uh, Joo-Hyung Lee, Young-Jun Choi, Hyung-Guel Kim, Dong-Jin Jeong, Jong-Woung Park, Man-Seung Cho
  • Publication number: 20060176285
    Abstract: A display panel includes a first pixel occupying a first pixel area and a second pixel occupying a second pixel area that is disposed adjacent to the first pixel area. A sensing element disposed in the first pixel area generates an output signal in response to a touch exerted on the display panel. A switching element is disposed in the second pixel area and is electrically coupled to the sensing element. The switching element selectively outputs a signal received from the sensing element.
    Type: Application
    Filed: December 9, 2005
    Publication date: August 10, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-Hyung Lee, Kee-Han Uh, Sang-Jin Pak, Myung-Woo Lee
  • Publication number: 20060146207
    Abstract: A liquid crystal display apparatus (100) comprising a liquid crystal display panel (2009 and a touch panel (300) is disclosed. A first transparent electrode (350) is disposed on an upper surface of the liquid crystal display panel (200) for displaying an image. A second transparent electrode (360) is disposed on a lower surface of a retardation member (320) and the second transparent electrode (360) is opposite to the first transparent electrode (350). Accordingly, the entire thickness of the liquid crystal display apparatus may be decreased, and the manufacturing cost of the liquid crystal display apparatus may be reduced.
    Type: Application
    Filed: June 3, 2003
    Publication date: July 6, 2006
    Inventors: Jong-Whan Cho, Kee-Han Uh, Sang-Woo Park, Sang-Jin Pak, Jae-Ik Lim, Bang-Sil Choi
  • Publication number: 20060109222
    Abstract: A display device according to an embodiment of the present invention includes: a display panel; a plurality of pixels disposed on the display panel; a plurality of sensor data lines disposed on the display panel and disposed between two adjacent pixels; and a plurality of sensing units disposed on the display panel and disposed between two adjacent pixels.
    Type: Application
    Filed: November 22, 2005
    Publication date: May 25, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-Hyung Lee, Hyung-Guel Kim, Kee-Han Uh, Sang-Jin Pak
  • Publication number: 20060071923
    Abstract: A shift register includes a plurality of stages each generating an output signal in sequence and including a buffering section, a driving section, a first charging section, and a charging control section. The buffering section receives one of a scan start signal and an output signal of a previous stage so that the driving section generates the output signal of a present stage. The first charging section includes a first terminal electrically connected to the driving section and a second terminal electrically connected to a first source voltage. The charging control section applies the output signal of a next stage to the first charging section. Therefore, a gradual failure of TFT is reduced.
    Type: Application
    Filed: October 3, 2005
    Publication date: April 6, 2006
    Inventors: Myung-Woo Lee, Sang-Jin Pak, Joo-Hyung Lee, Hyung-Guel Kim, Man-Seung Cho, Kee-Han Uh
  • Publication number: 20060060752
    Abstract: An information detection device according to an embodiment of the present invention includes: light sensing units generating photocurrents according to light amount and outputting sensor data signals based on the photocurrent; sensor scanning lines receiving sensor scanning signals from a sensor scanning driver and controlling the output of the sensor data signals from the light sensing units; sensor data lines transmitting the sensor data signals from the light sensing units; and a sensing signal processor receiving the sensor data signals from the sensor data lines at input terminals, wherein the number of the input terminals of the sensing signal processor is less than the number of the sensor data lines.
    Type: Application
    Filed: September 20, 2005
    Publication date: March 23, 2006
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Joo-Hyung Lee, Young-Jun Choi, Sang-Jin Pak, Kee-Han Uh, Jong-Woung Park
  • Publication number: 20060001637
    Abstract: A shift register includes stages to generate gate signals in sequence. Each of the stages includes a first pull up drive control section, a pull up drive section and a pull down drive section. The first pull up drive control section outputs a control signal based on the gate signal of an adjacent stage. The pull up drive section receives a first clock signal and outputs the first clock signal as the gate signal to a corresponding gate line in response to the control signal. The pull down drive section inactivates the corresponding gate line in response to a second clock signal.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 5, 2006
    Inventors: Sang-Jin Pak, Joo-Hyung Lee, Hyung-Guel Kim, Myung-Woo Lee
  • Publication number: 20050117079
    Abstract: In a light sensing element having simplified structure, an array substrate having the light sensing element and an LCD apparatus having the light sensing element, the light sensing element includes a first electrode, a control electrode and a second electrode. An alternating bias voltage is applied to the first electrode. An off voltage is applied to the control electrode. The second electrode outputs a light-induced leakage current based on an externally provided light and the bias voltage. Therefore, the array substrate includes one light sensing switching element corresponding to one pixel so that structure of the array substrate is simplified and opening ratio is increased.
    Type: Application
    Filed: October 22, 2004
    Publication date: June 2, 2005
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Jin Pak, Hyung-Guel Kim, Kee-Han Uh, Jong-Whan Cho, Jin Jeon, Young-Bae Jung