Patents by Inventor Kyoung-won Lee
Kyoung-won 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).
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Publication number: 20140313181Abstract: A controller controls the driving frequency and voltages for a display device. If image data corresponds to a moving picture, the controller drives a data driver and a gate driver at a moving picture frequency. If image data corresponds to a still image, drives the data driver and the gate driver at a still image frequency lower frequency than the moving picture frequency. When the still image is to be displayed, the signal controller also controls leakage current of a thin film transistor of a pixel based on a representative value of the image data, such that positive leakage current applied for a positive data voltage is equal to negative leakage current applied for a negative data voltage.Type: ApplicationFiled: January 3, 2014Publication date: October 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Seok Ha HONG, Dae-Gwang JANG, Byung Sun KIM, Sang Mi KIM, Ung Gyu MIN, Hyun Sik HWANG, Gi Geun KIM, Kyoung Won LEE
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Publication number: 20140291665Abstract: A thin film transistor array panel includes: a gate electrode disposed on a substrate, an insulating layer disposed on the gate electrode, an oxide semiconductor disposed on the gate insulating layer, source electrode overlapping a portion of the oxide semiconductor, a drain electrode overlapping another portion of the oxide semiconductor; and a buffer layer disposed between the oxide semiconductor and the source electrode and between the oxide semiconductor and the drain electrode. The buffer layer comprises tin as a doping material. A weight percent of the doping material is greater than approximately 0% and less than or equal to approximately 20%.Type: ApplicationFiled: February 13, 2014Publication date: October 2, 2014Applicant: Samsung Display Co., Ltd.Inventors: Gun Hee KIM, Jin Hyun PARK, Kyoung Won LEE, Byung Du AHN, Jee-Hun LIM, Jun Hyung LIM
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Publication number: 20140167038Abstract: The inventive concept relates to a thin film transistor and a thin film transistor array panel and, in detail, relates to a thin film transistor including an oxide semiconductor. A thin film transistor according to an exemplary embodiment of the inventive concept includes: a gate electrode; a gate insulating layer positioned on or under the gate electrode; a first semiconductor and a second semiconductor that overlap the gate electrode with the gate insulating layer interposed therebetween, the first semiconductor and the second semiconductor contacting each other; a source electrode connected to the second semiconductor; and a drain electrode connected to the second semiconductor and facing the source electrode, wherein the second semiconductor includes gallium (Ga) that is not included in the first semiconductor, and a content of gallium (Ga) in the second semiconductor is greater than 0 at. % and less than or equal to about 33 at. %.Type: ApplicationFiled: February 12, 2014Publication date: June 19, 2014Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)Inventors: Byung Du AHN, Ji Hun LIM, Gun Hee KIM, Kyoung Won LEE, Je Hun LEE, HIROSHI GOTO, AYA MIKI, SHINYA MORITA, TOSHIHIRO KUGIMIYA, Yeon Hong KIM, Yeon Gon MO, Kwang Suk KIM
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Publication number: 20140160182Abstract: A display device includes a display panel including a gate line, a data line, and a pixel connected to the gate line and the data line, a data driver connected to the data line, a gate driver connected to the gate line, and a signal controller controlling the data driver and the gate driver, wherein a circuits powering power source voltage that is normally used for driving the data driver is selectively not applied during a new-image blanking time when the signal controller is not supplying image data to the data driver.Type: ApplicationFiled: July 11, 2013Publication date: June 12, 2014Applicant: Samsung Display Co., Ltd.Inventors: Seok Ha HONG, Dae-Gwang JANG, Sang Mi KIM, Ung Gyu MIN, Ji Myoung SEO, Bong Hyun YOU, Hyun Sik HWANG, Gi Geun KIM, Jong Hee KIM, Kyoung Won LEE
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Patent number: 8743307Abstract: A display device includes a first substrate, a gate line disposed on the first substrate and including a gate electrode, a gate insulating layer disposed on the gate line, a semiconductor layer disposed on the gate insulating layer, a data line disposed on the semiconductor layer and connected to a source electrode, a drain electrode disposed on the semiconductor layer and facing the source electrode and a passivation layer disposed on the data line, in which the semiconductor layer is formed of an oxide semiconductor including indium, tin, and zinc. The indium is present in an amount of about 5 atomic percent (at %) to about 50 at %, and a ratio of the zinc to the tin is about 1.38 to about 3.88.Type: GrantFiled: June 7, 2012Date of Patent: June 3, 2014Assignees: Samsung Display Co, Ltd., Kobe Steel, Ltd.Inventors: Jae Woo Park, Je Hun Lee, Byung Du Ahn, Sei-Yong Park, Jun Hyun Park, Gun Hee Kim, Ji Hun Lim, Kyoung Won Lee, Toshihiro Kugimiya, Aya Miki, Shinya Morita, Tomoya Kishi, Hiroaki Tao, Hiroshi Goto
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Patent number: 8686426Abstract: A plural semiconductive oxides TFT (sos-TFT) provides improved electrical functionality in terms of charge-carrier mobility and/or threshold voltage variability. The sos-TFT may be used to form a thin film transistor array panel for display devices. An example sos-TFT includes: an insulated gate electrode; a first semiconductive oxide layer having a composition including a first semiconductive oxide; and a second semiconductive oxide layer having a different composition that also includes a semiconductive oxide. The first and second semiconductive oxide layers have respective channel regions that are capacitively influenced by a control voltage applied to the gate electrode. In one embodiment, the second semiconductive oxide layer includes at least one additional element that is not included in the first semiconductive oxide layer where the additional element is one of gallium (Ga), silicon (Si), niobium (Nb), hafnium (Hf), and germanium (Ge).Type: GrantFiled: July 23, 2012Date of Patent: April 1, 2014Assignees: Samsung Display Co., Ltd., Kobe Steel, Ltd.Inventors: Byung Du Ahn, Ji Hun Lim, Gun Hee Kim, Kyoung Won Lee, Je Hun Lee
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Publication number: 20140055501Abstract: A method of driving a display device includes driving a light source unit with a first driving ratio and outputting received image data to a display panel of the display device, storing the received image data upon receipt of a signal indicating a still image is displayed, calculating a second driving ratio of the light source unit from a representative value of the stored image data, compensating the stored image data according to the second driving ratio, driving the light source unit with the second driving ratio that is lower than the first driving ratio, and outputting the compensated image data to the display panel.Type: ApplicationFiled: December 27, 2012Publication date: February 27, 2014Applicant: Samsung Display Co., Ltd.Inventors: Kyoung Ju SHIN, Jung-Taek KIM, Cheol Woo PARK, Yun-Ki BAEK, Bong Hyun YOU, Kyoung Won LEE
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Publication number: 20140027759Abstract: A display device according to an exemplary embodiment of the present invention includes a semiconductor layer; a data line disposed on the semiconductor layer, and a source electrode as well as a drain electrode disposed on the semiconductor layer and facing the source electrode. The semiconductor layer is made of an oxide semiconductor including indium, tin, and zinc. An atomic percent of indium in the oxide semiconductor is equal to or larger than about 10 at % and equal to or smaller than about 90 at %, an atomic percent of zinc in the oxide semiconductor is equal to or larger than about 5 at % and equal to or smaller than about 60 at %, and an atomic percent of tin in the oxide semiconductor is equal to or larger than about 5 at % and equal to or smaller than about 45 at %, and the data line and the drain electrode comprise copper.Type: ApplicationFiled: January 3, 2013Publication date: January 30, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Byung Du AHN, Kyoung Won LEE, Gun Hee KIM, Young Joo CHOI
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Publication number: 20140022220Abstract: A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture.Type: ApplicationFiled: November 30, 2012Publication date: January 23, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Kyoung Won LEE, Seung Seok NAM, Cheol Woo PARK, Kyoung Ho LIM, Dae-Gwang JANG, Gi Geun KIM, Eun Ho LEE, Ung Gyu MIN, Seok Ha HONG
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Publication number: 20130256653Abstract: A plural semiconductive oxides TFT (sos-TFT) provides improved electrical functionality in terms of charge-carrier mobility and/or threshold voltage variability. The sos-TFT may be used to form a thin film transistor array panel for display devices. An example sos-TFT includes: an insulated gate electrode; a first semiconductive oxide layer having a composition including a first semiconductive oxide; and a second semiconductive oxide layer having a different composition that also includes a semiconductive oxide. The first and second semiconductive oxide layers have respective channel regions that are capacitively influenced by a control voltage applied to the gate electrode. In one embodiment, the second semiconductive oxide layer includes at least one additional element that is not included in the first semiconductive oxide layer where the additional element is one of gallium (Ga), silicon (Si), niobium (Nb), hafnium (Hf), and germanium (Ge).Type: ApplicationFiled: July 23, 2012Publication date: October 3, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Byung Du AHN, Ji Hun LIM, Gun Hee KIM, Kyoung Won LEE, Je Hun LEE
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Publication number: 20130181212Abstract: A semiconductor device includes: a substrate, a semiconductor layer including an oxide semiconductor disposed on the substrate, a barrier layer disposed on the semiconductor layer and an insulating layer disposed on the barrier layer. The semiconductor layer includes an oxide semiconductor, and the barrier layer includes a material having a lower standard electrode potential than a semiconductor material of the oxide semiconductor, a lower electron affinity than the semiconductor material of the oxide semiconductor, or a larger band gap than the semiconductor material of the oxide semiconductor. The insulating layer includes at least one of a silicon-based oxide or a silicon-based nitride, and the insulating layer includes a portion which contacts with an upper surface of the barrier layer.Type: ApplicationFiled: July 6, 2012Publication date: July 18, 2013Inventors: Gun Hee KIM, Jae Woo PARK, Jin Hyun PARK, Byung Du AHN, Je Hun LEE, Yeon Hong KIM, Jung Hwa KIM, Sei-Yong PARK, Jun Hyun PARK, Kyoung Won LEE, Ji Hun LIM
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Publication number: 20130114013Abstract: A display device includes a first substrate, a gate line disposed on the first substrate and including a gate electrode, a gate insulating layer disposed on the gate line, a semiconductor layer disposed on the gate insulating layer, a data line disposed on the semiconductor layer and connected to a source electrode, a drain electrode disposed on the semiconductor layer and facing the source electrode and a passivation layer disposed on the data line, in which the semiconductor layer is formed of an oxide semiconductor including indium, tin, and zinc. The indium is present in an amount of about 5 atomic percent (at %) to about 50 at % , and a ratio of the zinc to the tin is about 1.38 to about 3.88.Type: ApplicationFiled: June 7, 2012Publication date: May 9, 2013Inventors: Jae Woo Park, Je Hun Lee, Byung Du Ahn, Sei-Yong Park, Jun Hyun Park, Gun Hee Kim, Ji Hun Lim, Kyoung Won Lee
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Publication number: 20130063419Abstract: A stereoscopic image display device includes an image dividing module dividing an input image including a two dimensional (2D) image and a depth information image into a plurality of divisions, wherein each of the divisions includes a portion of the 2d image and a portion of the depth information image corresponding to the portion of the 2D image, an image rendering module rendering the divisions to output a plurality of rendered images, and a display panel assembly combining the plurality of rendered images.Type: ApplicationFiled: February 1, 2012Publication date: March 14, 2013Inventors: KYOUNG HO LIM, Joo-Young Kim, Cheol-Woo Park, Jung-Taek Kim, Kyoung Won Lee
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Publication number: 20130032448Abstract: A storage device for a filling line for intermediately storing runners that are configured to accommodate containers includes a buffer stream configured to receive the runners with a variable intermediate storage capacity of the runners. An introduction device is configured to introduce the runners, independently of each other, from a storage area into the buffer stream.Type: ApplicationFiled: August 3, 2012Publication date: February 7, 2013Applicant: KRONES AGInventors: Johann Huettner, Martin Seger, Toni Hifinger, Kyoung-Won Lee
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Publication number: 20130033464Abstract: A method of driving a display panel including converting a frame rate of input image data to generate first image data, writing the first image data to a memory, outputting a flag signal to a timing controller, reading the first image data from the memory according to the flag signal, compensating the first image data to generate second image data, and converting the second image data into an analog data voltage and outputting the data voltage to the display panel.Type: ApplicationFiled: February 29, 2012Publication date: February 7, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam-Gon CHOI, Jung-Taek KIM, Kyoung-Won LEE
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Patent number: 8253689Abstract: A system to output an icon in response to a hot-key input, including a microcomputer to sense an instruction input through a hot-key and to output a scan code corresponding to the instruction, a keyboard launcher to receive the scan code from the microcomputer, to analyze the scan code, and to generate a message that requests an output of a hot-key icon indicating the operation of the hot-key based on the analyzed scan code, a system basic input/output system (BIOS) to provide information required to output the hot-key icon, and a display manager to receive the message generated by the keyboard launcher and to output the hot-key icon based on the information received from the system BIOS.Type: GrantFiled: August 18, 2006Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Heun-jin Lee, Kyoung-won Lee, Yun-ho Choi, Kyung-hee Lee, Myung-hoon Ahn
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Publication number: 20110050542Abstract: A computer system which displays screens on a display unit for observing proper positioning and on an auxiliary display device and a method of controlling the same. A computer system including: a display unit; a plurality of ports connectable with at least one auxiliary display device; and a controller displaying a main screen on the display unit and an auxiliary screen corresponding to a position of a port coupled to the auxiliary display device from among the ports in the auxiliary display device. The computer system permits improved convenience when arranging displaying screens on a mounted display unit and in an auxiliary display device.Type: ApplicationFiled: June 28, 2010Publication date: March 3, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Kyoung-won LEE
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Publication number: 20070061761Abstract: A system to output an icon in response to a hot-key input, including a microcomputer to sense an instruction input through a hot-key and to output a scan code corresponding to the instruction, a keyboard launcher to receive the scan code from the microcomputer, to analyze the scan code, and to generate a message that requests an output of a hot-key icon indicating the operation of the hot-key based on the analyzed scan code, a system basic input/output system (BIOS) to provide information required to output the hot-key icon, and a display manager to receive the message generated by the keyboard launcher and to output the hot-key icon based on the information received from the system BIOS.Type: ApplicationFiled: August 18, 2006Publication date: March 15, 2007Applicant: Samsung Electronics Co., Ltd.Inventors: Heun-jin Lee, Kyoung-won Lee, Yun-ho Choi, Kyung-hee Lee, Myung-hoon Ahn
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Publication number: 20040039948Abstract: A portable computer having a power supply receiving electric power from an adapter or a battery; an LCD device displaying a picture based on a vertical frequency transmitted from a video chip; and a microprocessor determining whether the power supply receives the electric power from the adapter or the battery, and outputting a determined power source information. A controller in the computer controls the video chip according to the power source information to change the vertical frequency for the LCD device. The controller lowers the vertical frequency when the power supply receives the electric power from the battery to reduce power consumption while being operated by the battery.Type: ApplicationFiled: March 17, 2003Publication date: February 26, 2004Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Kyoung-Won Lee
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Patent number: 6337687Abstract: A video mode controlling apparatus and method of a computer having a LCD is provided. The method includes the steps of checking whether or not the video mode to be changed by the mode change controlling information is supported by the video controller, turning the LCD off, changing font and video mode state of the video controller so as to correspond to the mode change controlling information, and turning the LCD on. It is possible to prevent the generation of a whitening phenomenon of a LCD which is liable to occur when the video mode is changed in a computer having the LCD.Type: GrantFiled: May 11, 1999Date of Patent: January 8, 2002Assignee: Samsung Electronics Co., Ltd.Inventor: Kyoung-won Lee