Patents by Inventor Keun-Woo Park
Keun-Woo Park 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: 8541811Abstract: There are provided a TFT, a TFT substrate using the TFT, a method of fabricating the TFT substrate, and an LCD. The TFT includes a source region, a drain region, and a gate electrode having an opening. The opening of the gate electrode is to enhance the light sensing ability of the TFT when it is used as a light sensor, since light is incident into a region where the opening is formed. The TFT including the gate having the opening can be used in a substrate of a flat display or an LCD using such a substrate. The above TFT can sense light incident from outside the display to adjust the brightness of the screen according to the external illumination.Type: GrantFiled: September 27, 2010Date of Patent: September 24, 2013Assignee: Samsung Display Co., Ltd.Inventors: Kwan-Wook Jung, Ung-Sik Kim, Pil-Mo Choi, Seock-Cheon Song, Ho-Suk Maeng, Sang-Hoon Lee, Keun-Woo Park
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Publication number: 20120319124Abstract: A display device with a display region and a non-display region surrounding the display region, the display device comprising: a first substrate and a second substrate. The first substrate comprises: a first insulating substrate; a gate line formed on the first insulating substrate; a pixel thin film transistor formed on the display region and electrically connected to the gate line; a pixel electrode electrically connected to the pixel thin film transistor; a gate driver formed on the non-display region and connected to the gate line; and a direct current (DC)/DC converter formed on the non-display region and having a capacitance part. The capacitance part includes: a first capacitance part with a first electrode, a first dielectric layer, and a second electrode; and a second capacitance part with the second electrode, a second dielectric layer, and a third electrode.Type: ApplicationFiled: June 15, 2012Publication date: December 20, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kyung-hoon KIM, Keun-woo PARK, Kook-chul MOON, Pil-mo CHOI, Chul-ho KIM, Ho-suk MAENG, Sang-hoon LEE
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Patent number: 8223307Abstract: A liquid crystal display device with a display region and a non-display region surrounding the display region, the liquid crystal display device comprising: a first substrate; a second substrate which faces the first substrate; and a liquid crystal layer which is interposed between the first substrate and the second substrate, the first substrate comprising: a first insulating substrate; gate and data lines which are formed on the first insulating substrate and intersecting each other; a pixel thin film transistor formed on the display region and electrically connected to the gate and data lines; a pixel electrode electrically connected to the pixel thin film transistor; a gate driver formed on the non-display region and connected to the gate line to drive the gate line; and a direct current (DC)/DC converter formed on the non-display region and comprises a converter thin film transistor and a capacitance part; the capacitance part includes: a first capacitance part which comprises a first electrode, a firstType: GrantFiled: January 23, 2008Date of Patent: July 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-hoon Kim, Keun-woo Park, Kook-chul Moon, Pil-mo Choi, Chul-ho Kim, Ho-suk Maeng, Sang-hoon Lee
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Patent number: 8085379Abstract: Provided are a circuit board and a display device having the circuit board. The circuit board includes a first surface opposite to a second surface and a first and a second wire disposed on the first surface. The circuit board is attached substantially to one side of the display panel unit.Type: GrantFiled: March 29, 2006Date of Patent: December 27, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Hoon Lee, Keun-Woo Park, Pil-Mo Choi, Ung-Sik Kim, Kook-Chul Moon
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Patent number: 8040314Abstract: A liquid crystal display having a plurality of pixels and blocks of shift registers that are connected to one another for temporarily storing data signals and from which the data signal outputs are sequentially applied to drive the pixels. Each of the shift registers receives a shift start signal and at least one of first and second clock signals, of which phases are opposite to each other, and a high period of the shift start signal corresponds to two cycles of the respective clock signals so that each pixel is pre-charged from the data signal from previous block of registers before receiving the data signal for the current block thereby preventing a boundary between blocks from being visually recognized.Type: GrantFiled: October 4, 2006Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Hoon Lee, Kook-Chul Moon, Chul-Ho Kim, Ung-Sik Kim, Pil-Mo Choi, Seock-Cheon Song, Ho-Suk Maeng, Keun-Woo Park
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Patent number: 7995171Abstract: A thin film transistor (TFT) substrate that is capable of providing a wide viewing angle and high contrast ratio without a decrease is aperture ratio is presented. The TFT substrate may be, for example, used with a patterned vertical alignment (PVA) mode LCD. The TFT substrate includes gate lines and data lines extending in non-parallel directions and a pixel electrode formed in a pixel region. The pixel region has two transmission regions separated from each other by a reflection region, and at least one of the gate lines is formed in the reflection region. A storage capacitor may also be formed in the reflection region. This configuration avoids the use of a bridge region between the two transmission regions that is responsible for aperture ratio decrease in the conventional configuration.Type: GrantFiled: November 14, 2007Date of Patent: August 9, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chul Ho Kim, Kook Chul Moon, Jae Hyun Kim, Ho Suk Maeng, Sang Hoon Lee, Kyung Hoon Kim, Keun Woo Park
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Patent number: 7880849Abstract: A display panel includes gate lines formed on a substrate, storage electrode lines formed on the substrate and being parallel to the gate lines, data lines insulated from the gate lines and crossing the gate lines, a plurality of thin film transistors (TFTs) connected with the gate lines and the data lines, and pixel electrodes having a first sub-electrode connected with a TFT and a second sub-electrode formed at a side opposite the first sub-electrode with respect to a gate line, wherein the TFT and a storage electrode line are disposed between the first and second sub-electrodes.Type: GrantFiled: October 2, 2007Date of Patent: February 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chul-Ho Kim, Kook-Chul Moon, Pil-Mo Choi, Ho-Suk Maeng, Sang-Hoon Lee, Kyung-Hoon Kim, Keun-Woo Park
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Patent number: 7876303Abstract: A method and apparatus for driving the data in a liquid crystal display (LCD) panel are presented. The method and apparatus prevent or reduce defects at the boundary between pixel blocks when the pixel blocks are sequentially driven on a block-by-block basis. The method includes applying data signals to a first data block, precharging a second data block that is adjacent to the first data block to a predetermined precharge voltage, and applying data signals to the second data block. The precharging prevents a large voltage difference at the boundary, thereby reducing defects.Type: GrantFiled: May 24, 2006Date of Patent: January 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Kook Chul Moon, Jun Young Lee, Ung Sik Kim, Seock Cheon Song, Sang Hoon Lee, Keun Woo Park, Ho Suk Maeng, Sung Wook Kang, Pil Mo Choi
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TFT AND TFT SUBSTRATE USING THE SAME, METHOD OF FABRICATING TFT SUBSTRATE AND LIQUID CRYSTAL DISPLAY
Publication number: 20110013113Abstract: There are provided a TFT, a TFT substrate using the TFT, a method of fabricating the TFT substrate, and an LCD. The TFT includes a source region, a drain region, and a gate electrode having an opening. The opening of the gate electrode is to enhance the light sensing ability of the TFT when it is used as a light sensor, since light is incident into a region where the opening is formed. The TFT including the gate having the opening can be used in a substrate of a flat display or an LCD using such a substrate. The above TFT can sense light incident from outside the display to adjust the brightness of the screen according to the external illumination.Type: ApplicationFiled: September 27, 2010Publication date: January 20, 2011Inventors: Kwan-Wook JUNG, Ung-Sik Kim, Pil-Mo Choi, Seock-Cheon Song, Ho-Suk Maeng, Sang-Hoon Lee, Keun-Woo Park -
Patent number: 7821508Abstract: A driving apparatus for a display device includes a signal controller synthesizing first and second signals, respectively, having first and second signal levels to output a synthesized signal having third to fifth signal levels, a signal extracting unit extracting the first and second control signals from the synthesized signal, a gate driver generating gate signals based on the first control signal, and a data driver generating data signals based on the second control signal.Type: GrantFiled: July 19, 2006Date of Patent: October 26, 2010Assignee: Samsung Electronic Co., Ltd.Inventors: Keun-Woo Park, Pil-Mo Choi, Kook-Chul Moon, Ung-Sik Kim, Seock-Cheon Song, Ho-Suk Maeng, Sang-Hoon Lee
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Patent number: 7821006Abstract: There are provided a TFT, a TFT substrate using the TFT, a method of fabricating the TFT substrate, and an LCD. The TFT includes a source region, a drain region, and a gate electrode having an opening. The opening of the gate electrode is to enhance the light sensing ability of the TFT when it is used as a light sensor, since light is incident into a region where the opening is formed. The TFT including the gate having the opening can be used in a substrate of a flat display or an LCD using such a substrate. The above TFT can sense light incident from outside the display to adjust the brightness of the screen according to the external illumination.Type: GrantFiled: July 14, 2006Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Kwan-Wook Jung, Ung-Sik Kim, Pil-Mo Choi, Seock-Cheon Song, Ho-Suk Maeng, Sang-Hoon Lee, Keun-Woo Park
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Publication number: 20100045851Abstract: There is provided a method of controlling a mechanical shutter that can ensure faster shutter speed by preventing a reduction of the shutter speed of the mechanical shutter caused by signal loss and physical loss caused by inertia. A method of controlling a mechanical shutter according to an aspect of the invention may include performing a row reset operation to remove image information remaining in an image sensor according to input of a trigger event generated by a user to acquire an image; transmitting a shutter close operation start signal for a mechanical shutter to the mechanical shutter before the row reset operation ends after a predetermined delay time from a time when the row reset operation starts; exposing the imager sensor right after the row reset operation ends; and fully closing the mechanical shutter.Type: ApplicationFiled: August 20, 2009Publication date: February 25, 2010Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Eugene Savastyuk, Yeong Hyo Jeong, Won Tae Choi, Keun Woo Park
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Patent number: 7668452Abstract: An automatic exposure control apparatus employed by an image sensor module including a lens unit, an image sensing unit having a shutter, and an image signal processing unit, the apparatus including: a brightness calculator extracting average brightness of a image signal; a brightness adjustment determiner determining whether to fix or adjust a speed of the shutter based on the average brightness; an adjustment path controller controlling the speed of the shutter by using the brightness error; a digital filter filtering the brightness error; a shutter speed adjuster adjusting a present shutter speed value by using one of the brightness error and the filtered brightness; and a shutter speed controller controlling a speed of the shutter by using the adjusted shutter speed value.Type: GrantFiled: June 12, 2007Date of Patent: February 23, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Keun Woo Park, Bong Soon Kang, Joo Hyun Kim, Hyun Sik Kim, Kang Joo Kim, Tae Eung Kim
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Publication number: 20080292184Abstract: Provided is an apparatus for automatically adjusting white balance, the apparatus including an Image Signal Processing (ISP) unit that processes image data; a first histogram setting unit that is connected to the ISP unit, stores the number of pixels corresponding to each Cb and Cr value of the image data applied from the ISP unit so as to set a first histogram, and sets an effective range of the first histogram; a second histogram setting unit that is connected to the first histogram setting unit, subdivides the first histogram included in the effective range so as to set a second histogram, and applies a weight to the second histogram; and a lean setting unit that is connected to the second histogram setting unit, applies preset lean values to the second histogram, to which the weight has been applied, so as to calculate a lean correction value, and delivers the calculated correction value to the ISP unit.Type: ApplicationFiled: November 15, 2007Publication date: November 27, 2008Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Keun Woo Park, Won Tae Choi, Tae Eung Kim
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Publication number: 20080211786Abstract: A display device, includes: a touch panel which outputs a predetermined enable signal corresponding to an external pressure; a display panel which includes a light detector responding to external light and generating a predetermined electrical signal representing the position of the light; and a panel driver which forms an image corresponding to the electrical signal on the display panel if the enable signal is input.Type: ApplicationFiled: October 31, 2007Publication date: September 4, 2008Inventors: Keun-woo PARK, Kook-chul Moon, Pil-mo Choi, Chul-ho Kim, Ho-suk Maeng, Sang-hoon Lee, Kyung-hoon Kim
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Publication number: 20080198319Abstract: A liquid crystal display device with a display region and a non-display region surrounding the display region, the liquid crystal display device comprising: a first substrate; a second substrate which faces the first substrate; and a liquid crystal layer which is interposed between the first substrate and the second substrate, the first substrate comprising: a first insulating substrate; gate and data lines which are formed on the first insulating substrate and intersecting each other; a pixel thin film transistor formed on the display region and electrically connected to the gate and data lines; a pixel electrode electrically connected to the pixel thin film transistor; a gate driver formed on the non-display region and connected to the gate line to drive the gate line; and a direct current (DC)/DC converter formed on the non-display region and comprises a converter thin film transistor and a capacitance part; the capacitance part includes: a first capacitance part which comprises a first electrode, a firstType: ApplicationFiled: January 23, 2008Publication date: August 21, 2008Inventors: Kyung-hoon Kim, Keun-woo Park, Kook-chul Moon, Pil-mo Choi, Chul-ho Kim, Ho-suk Maeng, Sang-hoon Lee
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Publication number: 20080198119Abstract: A liquid crystal display includes a display panel having a data-storing unit including transistors integrated into the display panel. The data-storing transistors of the data-storing unit may be formed in the same film (layer) as the TFT pixel transistors on the display panel. Each of the plurality of transistors of the data-storing unit includes an input electrode connected to one of a first voltage or a second voltage depending upon a bit of stored data, and an output electrode commonly connected to a data output terminal of the data-storing unit. The data-storing unit further includes and a Serial-In, Parallel-Out shift register supplied with a reset and first and second clock signals and connected to the input electrodes of the transistors, respectively.Type: ApplicationFiled: September 7, 2007Publication date: August 21, 2008Inventors: Pil-Mo Choi, Kook-Chul Moon, Ho-Suk Maeng, Kwang-Sub Shin, Chul-Ho Kim, Sang-Hoon Lee, Kyung-Hoon Kim, Keun-Woo Park
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Publication number: 20080158131Abstract: A liquid crystal display (LCD) includes associated pairs of amplifiers used in an output buffer of a data driver to implement dot inversion driving of the LCD. The data driver includes a first amplifier having an output terminal connected to a first data line and outputting a positive polarity voltage, a second amplifier having an output terminal connected to a second data line and outputting a negative polarity voltage, and a switching unit connected between the output terminals of the two amplifiers and the two data lines and operative in response to a switching signal to interchange the amplifier output signals respectively applied to the data lines.Type: ApplicationFiled: November 2, 2007Publication date: July 3, 2008Inventors: Keun-Woo Park, Pil-Mo Choi, Ho-Suk Maeng, Kook-Chul Moon, Chul-Ho Kim, Sang-Hoon Lee, Kyung-Hoon Kim
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Publication number: 20080121893Abstract: A display panel includes gate lines formed on a substrate, storage electrode lines formed on the substrate and being parallel to the gate lines, data lines insulated from the gate lines and crossing the gate lines, a plurality of thin film transistors (TFTs) connected with the gate lines and the data lines, and pixel electrodes having a first sub-electrode connected with a TFT and a second sub-electrode formed at a side opposite the first sub-electrode with respect to a gate line, wherein the TFT and a storage electrode line are disposed between the first and second sub-electrodes.Type: ApplicationFiled: October 2, 2007Publication date: May 29, 2008Inventors: Chul-Ho Kim, Kook-Chul Moon, Pil-Mo Choi, Ho-Suk Maeng, Sang-Hoon Lee, Kyung-Hoon Kim, Keun-Woo Park
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Publication number: 20080111956Abstract: A thin film transistor (TFT) substrate that is capable of providing a wide viewing angle and high contrast ratio without a decrease is aperture ratio is presented. The TFT substrate may be, for example, used with a patterned vertical alignment (PVA) mode LCD. The TFT substrate includes gate lines and data lines extending in non-parallel directions and a pixel electrode formed in a pixel region. The pixel region has two transmission regions separated from each other by a reflection region, and at least one of the gate lines is formed in the reflection region. A storage capacitor may also be formed in the reflection region. This configuration avoids the use of a bridge region between the two transmission regions that is responsible for aperture ratio decrease in the conventional configuration.Type: ApplicationFiled: November 14, 2007Publication date: May 15, 2008Inventors: Chul Ho KIM, Kook Chul Moon, Jae Hyun Kim, Ho Suk Maeng, Sang Hoon Lee, Kyung Hoon Kim, Keun Woo Park