Patents by Inventor Soo-wan Yoon
Soo-wan Yoon 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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Patent number: 9070332Abstract: A display device includes: an insulation substrate; a plurality of gate lines on the insulation substrate and divided into a first group and a second group; a plurality of data lines insulated from and intersecting the gate lines; a gate driver which applies a gate-on voltage to the gate lines and operates in one of a first mode and a second mode; and a data driver which applies a data voltage to the data lines, where the first group and the second group of the gate lines are applied with the gate-on voltage when the gate driver is in the first mode, and where the first group of the gate lines is applied with the gate-on voltage and the second group of the gate lines is in an off state when the gate driver is in the second mode.Type: GrantFiled: February 22, 2012Date of Patent: June 30, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Sun Kim, Chong Chul Chai, Yeong-Keun Kwon, Young-Soo Yoon, Soo-Wan Yoon
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Patent number: 8958021Abstract: An exemplary embodiment of the present invention discloses a display substrate including a pixel connected to a first gate line and a data line. The pixel includes a first sub-pixel including a first liquid crystal capacitor and a first switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the first liquid crystal capacitor. The pixel also includes a second sub-pixel including a second liquid crystal capacitor and a second switching element including a gate electrode connected to the first gate line, a source electrode connected to the data line, and a drain electrode connected to the second liquid crystal capacitor. The pixel further includes a controller including a control capacitor and a control switching element, the control switching element connected between a terminal of the control capacitor and the drain electrode of the second switching element.Type: GrantFiled: April 6, 2011Date of Patent: February 17, 2015Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Joon-Chul Goh, Eun-Guk Lee, Young-Soo Yoon, Dong-Yoon Kim, Byung-Duk Yang
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Patent number: 8927199Abstract: A mask includes: a substrate that includes a central area and a peripheral area disposed around the central area; and lenses disposed in rows and columns, in the central area and the peripheral area. The lenses of opposing sides of the peripheral area may be disposed in different rows or columns. For a given amount of input light, the lenses of the peripheral area may focus less light on a substrate than the lenses of the central area. The mask may be disposed over the substrate in different positions, and then the substrate may be irradiated through the mask, while the mask is in each of the positions. The peripheral portion of the mask may be disposed over the same area of the substrate, while the mask is in different ones of the positions.Type: GrantFiled: April 18, 2013Date of Patent: January 6, 2015Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Chong-Chul Chai
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Patent number: 8816728Abstract: A gate driving circuit includes a pull-up control part, a pull-up part, a carry part, a first pull-down part and a second pull-down part. The pull-up control part applies a carry signal from a previous stage to a first node. The pull-up part outputs an N-th gate output signal based on a clock signal. The carry part outputs an N-th carry signal based on the clock signal in response to the signal applied to the first node. The first pull-down part includes a plurality of transistors connected to each other in series. The first pull-down part pulls down a signal at the first node to a second off voltage in response to a carry signal of a next stage. The second pull-down part pulls down the N-th gate output signal to a first off voltage in response to the carry signal of the next stage.Type: GrantFiled: October 18, 2013Date of Patent: August 26, 2014Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Ji-Sun Kim, Young-Soo Yoon, Chong-Chui Chai
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Patent number: 8803855Abstract: A liquid crystal display includes a plurality of pixels. Each pixel of the plurality of pixels includes a gate line which receives a gate signal; a data line which receives a data voltage; a first sub-pixel including a first transistor connected to the gate line and the data line, wherein the first transistor outputs the data voltage in response to the gate signal; and a first liquid crystal capacitor connected to the first transistor. Each pixel further includes a second sub-pixel including a second transistor connected to the gate line and the data line, wherein the second transistor outputs the data voltage in response to the gate signal; and a second liquid crystal capacitor connected to the second transistor; a resistor connected to the second transistor; and a first sharing capacitor connected to the resistor, wherein the first sharing capacitor receives the data voltage through the resistor.Type: GrantFiled: September 13, 2010Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Joon-Chul Goh, Young-Soo Yoon, Soo-Wan Yoon, Chongchul Chai
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Patent number: 8755019Abstract: A method of manufacturing a liquid crystal display includes: forming a gate line including a gate electrode on a first substrate; forming a gate insulating layer on the gate line; sequentially forming a semiconductor layer, an amorphous silicon layer, and a data metal layer on the entire surface of the gate insulating layer; aligning the edges of the semiconductor layer and the data metal layer; forming a transparent conductive layer on the gate insulating layer and the data metal layer; forming a first pixel electrode and a second pixel electrode by patterning the transparent conductive layer; and forming a data line including a source electrode, a drain electrode, and an ohmic contact layer by etching the data metal layer and the amorphous silicon layer, using the first pixel electrode and the second pixel electrode as a mask, and exposing the semiconductor between the source electrode and the drain electrode.Type: GrantFiled: July 28, 2011Date of Patent: June 17, 2014Assignee: Samsung Display Co., Ltd.Inventors: Ji-Young Park, Sang Gab Kim, Yong-Mo Choi, Hyung Jun Kim, Sung-Haeng Cho, Hong-Sick Park, Byeong-Jin Lee, Soo-Wan Yoon
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Patent number: 8722440Abstract: A display substrate includes a gate electrode, a gate insulating layer, and a semiconductor layer that are sequentially formed on a substrate. Also, the display substrate includes a color filter layer formed on the substrate and exposing a portion of the semiconductor layer, and source and drain electrodes that each overlap with the semiconductor layer and the color filter layer. The gate electrode, the gate insulating layer, and the semiconductor layer have the same shape as each other, and the gate electrode is insulated from the gate insulating layer and the semiconductor layer by the color filter layer.Type: GrantFiled: March 18, 2011Date of Patent: May 13, 2014Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Chong-Chul Chai
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Publication number: 20140092078Abstract: A display device includes a display area including a gate line and a data line and a gate driver connected to an end of the gate line, the gate driver including at least one stages integrated on a substrate configured to output a gate voltage, in which the stage includes an inverter unit and an output unit, in which the output unit includes a first transistor and a first capacitor. The first transistor includes an input terminal applied with a clock signal, a control terminal connected to the node Q, and an output terminal connected to a gate voltage output terminal through which the gate voltage is output. An inverter voltage output from the inverter is lower than the low voltage of the gate voltage output by the output unit.Type: ApplicationFiled: June 21, 2013Publication date: April 3, 2014Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Ji-Sun Kim, Jong Hee Kim, Young Wan Seo, Jae Keun Lim
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Publication number: 20140043066Abstract: A gate driving circuit includes a pull-up control part, a pull-up part, a carry part, a first pull-down part and a second pull-down part. The pull-up control part applies a carry signal from a previous stage to a first node. The pull-up part outputs an N-th gate output signal based on a clock signal. The carry part outputs an N-th carry signal based on the clock signal in response to the signal applied to the first node. The first pull-down part includes a plurality of transistors connected to each other in series. The first pull-down part pulls down a signal at the first node to a second off voltage in response to a carry signal of a next stage. The second pull-down part pulls down the N-th gate output signal to a first off voltage in response to the carry signal of the next stage.Type: ApplicationFiled: October 18, 2013Publication date: February 13, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Ji-Sun Kim, Young-Soo Yoon, Chong-Chul Chai
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Patent number: 8610655Abstract: A method for removing noise of a gate signal that is outputted from a gate driving circuit including a plurality of stages, the method includes electrically connecting two terminals of two adjacent stages that have noise components opposite in phase to each other during a first period, and electrically disconnecting the two terminals of the two adjacent stages that have the noise components opposite in phase to each other during a second period.Type: GrantFiled: March 27, 2008Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Sung-Hoon Yang, Chong-Chul Chai, So-Woon Kim, Chang-Hyeon Shin
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Patent number: 8587347Abstract: A gate driving circuit includes a pull-up control part, a pull-up part, a carry part, a first pull-down part and a second pull-down part. The pull-up control part applies a carry signal from a previous stage to a first node. The pull-up part outputs an N-th gate output signal based on a clock signal. The carry part outputs an N-th carry signal based on the clock signal in response to the signal applied to the first node. The first pull-down part includes a plurality of transistors connected to each other in series. The first pull-down part pulls down a signal at the first node to a second off voltage in response to a carry signal of a next stage. The second pull-down part pulls down the N-th gate output signal to a first off voltage in response to the carry signal of the next stage.Type: GrantFiled: July 11, 2012Date of Patent: November 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Ji-Sun Kim, Young-Soo Yoon, Chong-Chul Chai
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Publication number: 20130230950Abstract: A mask includes: a substrate that includes a central area and a peripheral area disposed around the central area; and lenses disposed in rows and columns, in the central area and the peripheral area. The lenses of opposing sides of the peripheral area may be disposed in different rows or columns. For a given amount of input light, the lenses of the peripheral area may focus less light on a substrate than the lenses of the central area. The mask may be disposed over the substrate in different positions, and then the substrate may be irradiated through the mask, while the mask is in each of the positions. The peripheral portion of the mask may be disposed over the same area of the substrate, while the mask is in different ones of the positions.Type: ApplicationFiled: April 18, 2013Publication date: September 5, 2013Applicant: Samsung Display Co., Ltd.Inventors: Soo-Wan YOON, Yeong-Keun KWON, Chong-Chul CHAI
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Patent number: 8502793Abstract: A touch screen display device includes a common electrode, a base substrate disposed opposite to the common electrode, a display signal line formed on the base substrate, a plurality of pixel electrodes, a touch position sensing part formed between the base substrate and the pixel electrodes, the touch position sensing part sensing a change of electrostatic capacitance formed between the common electrode and the touch position sensing part, and a display layer disposed between the common electrode and the pixel electrodes. The display layer includes a plurality of micro capsules comprising positively charged pigment particles and negatively charged pigment particles.Type: GrantFiled: February 10, 2011Date of Patent: August 6, 2013Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Cheol-Woo Park, Sung-Jin Kim, Nam-Seok Roh, Sang-Il Kim, Woo-Jae Lee, Chong-Chul Chai
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Publication number: 20130181747Abstract: A gate driving circuit includes a pull-up control part, a pull-up part, a carry part, a first pull-down part and a second pull-down part. The pull-up control part applies a carry signal from a previous stage to a first node. The pull-up part outputs an N-th gate output signal based on a clock signal. The carry part outputs an N-th carry signal based on the clock signal in response to the signal applied to the first node. The first pull-down part includes a plurality of transistors connected to each other in series. The first pull-down part pulls down a signal at the first node to a second off voltage in response to a carry signal of a next stage. The second pull-down part pulls down the N-th gate output signal to a first off voltage in response to the carry signal of the next stage.Type: ApplicationFiled: July 11, 2012Publication date: July 18, 2013Inventors: Soo-Wan YOON, Yeong-Keun KWON, Ji-Sun KIM, Young-Soo YOON, Chong-Chul CHAI
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Patent number: 8426086Abstract: A mask includes: a substrate that includes a central area and a peripheral area disposed around the central area; and lenses disposed in rows and columns, in the central area and the peripheral area. The lenses of opposing sides of the peripheral area may be disposed in different rows or columns. For a given amount of input light, the lenses of the peripheral area may focus less light on a substrate than the lenses of the central area. The mask may be disposed over the substrate in different positions, and then the substrate may be irradiated through the mask, while the mask is in each of the positions. The peripheral portion of the mask may be disposed over the same area of the substrate, while the mask is in different ones of the positions.Type: GrantFiled: June 22, 2011Date of Patent: April 23, 2013Assignee: Samsung Display Co., Ltd.Inventors: Soo-Wan Yoon, Yeong-Keun Kwon, Chong-Chul Chai
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Publication number: 20130093739Abstract: A display apparatus includes gate lines, data lines insulated from the gate lines while crossing the gate lines, and pixels each including sub-pixels in two successive rows by three successive columns. Among the sub-pixels in the two rows by the three columns, the sub-pixels in one of the three columns are respectively connected to a pair of different gate lines among three gate lines, and the sub-pixels in a different one of the three columns are connected to a remaining gate line among the three gate lines. The sub-pixels in the one and the different one of the three columns includes the same color filter and are applied with a gate signal transmitted in the same direction along pixel rows.Type: ApplicationFiled: March 14, 2012Publication date: April 18, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Sun KIM, Yeong-Keun KWON, Soo-Wan YOON, Young-Soo YOON, Jaehoon LEE, Chongchul CHAI
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Publication number: 20130088479Abstract: A display device includes: an insulation substrate; a plurality of gate lines on the insulation substrate and divided into a first group and a second group; a plurality of data lines insulated from and intersecting the gate lines; a gate driver which applies a gate-on voltage to the gate lines and operates in one of a first mode and a second mode; and a data driver which applies a data voltage to the data lines, where the first group and the second group of the gate lines are applied with the gate-on voltage when the gate driver is in the first mode, and where the first group of the gate lines is applied with the gate-on voltage and the second group of the gate lines is in an off state when the gate driver is in the second mode.Type: ApplicationFiled: February 22, 2012Publication date: April 11, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Sun KIM, Chong Chul CHAI, Yeong-Keun KWON, Young-Soo YOON, Soo-Wan YOON
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Patent number: 8284149Abstract: An output part outputs a high voltage of a first clock signal as a high voltage of an (m)-th gate signal (‘m’ is a natural number) and a low voltage in response to a high signal of an (m+1)-th gate signal outputted from an (m+1)-th stage. A first maintenance part maintains a control part of the pull-up part at a low voltage in response to an (m?1)-th node signal or an (m+1)-th node signal lower than a high signal of a second clock signal having a phase opposite to the phase of the first clock signal received from an (m?1)-th stage or the (m+1)-th stage. A second maintenance part maintains the low voltage of the (m)-th gate signal in response to the (m?1)-th node signal or the (m+1)-th node signal.Type: GrantFiled: July 23, 2009Date of Patent: October 9, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-Wan Yoon, Joon-Chul Goh, Chong-Chul Chai, Young-Soo Yoon, Sei-Hyoung Jo
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Patent number: 8284338Abstract: A mask is provided. The mask includes a mask body, a first exposing part and a second exposing part. The first exposing part is on the mask body. The first exposing part includes a first light transmitting portion and second light transmitting portions. The first light transmitting portion exposes a portion of the photoresist film corresponding to the output terminal to a light of a first light amount. The second light transmitting portions exposes an adjacent portion of the photoresist film adjacent to the output terminal to a light of a second light amount smaller than the first light amount. The second exposing part is on the mask body. The second exposing part includes third light transmitting portions for partially exposing the photoresist film corresponding to the storage electrode to a light of a third light amount that is between the first and second light amounts.Type: GrantFiled: September 22, 2011Date of Patent: October 9, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chong-Chul Chai, Shi-Yul Kim, Sang-Gab Kim, Jun-Hyung Souk, Sang-Woo Whangbo, Won-Kie Chang, Hi-Kuk Lee, Soo-Wan Yoon, Soo-Jin Kim
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Patent number: 8258516Abstract: A thin-film transistor (TFT) substrate includes a gate electrode, a gate insulation pattern, a channel pattern, a first organic insulation pattern, a source electrode and a drain electrode. The gate electrode is formed on a base substrate. The gate insulation pattern is formed on the gate electrode and is smaller than the gate electrode. The channel pattern is formed on the gate insulation pattern and the channel pattern is smaller than the gate electrode. The first organic insulation pattern is formed on the base substrate to cover the channel pattern, the gate insulation pattern and the gate electrode.Type: GrantFiled: April 20, 2011Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Soo-Wan Yoon