Patents by Inventor Hyeon Seok Bae
Hyeon Seok Bae 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).
-
Patent number: 10796619Abstract: A display device a includes: a display portion including pixels arranged in a matrix form; gate lines extending in a row direction for each pixel row and connected to the pixels; and a gate driver which applies a gate signal of a gate-on voltage to the plurality of gate lines. The gate driver applies the gate signal in the order of a k-th gate line, a (k+3)-th gate line, a (k+1)-th gate line, a (k+4)-th gate line, a (k+2)-th gate line, and a (k+5)-th gate line, where k is an integer greater than 1, and pixels connected to the k-th gate line and the (k+3)-th gate line display a first color, pixels connected to the (k+1)-th gate line and the (k+4)-th gate line display a second color, and pixels connected to the (k+2)-th gate line and the (k+5)-th gate line display a third color.Type: GrantFiled: January 11, 2018Date of Patent: October 6, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon Seok Bae, Haeng Won Park
-
Publication number: 20180204499Abstract: A display device a includes: a display portion including pixels arranged in a matrix form; gate lines extending in a row direction for each pixel row and connected to the pixels; and a gate driver which applies a gate signal of a gate-on voltage to the plurality of gate lines. The gate driver applies the gate signal in the order of a k-th gate line, a (k+3)-th gate line, a (k+1)-th gate line, a (k+4)-th gate line, a (k+2)-th gate line, and a (k+5)-th gate line, where k is an integer greater than 1, and pixels connected to the k-th gate line and the (k+3)-th gate line display a first color, pixels connected to the (k+1)-th gate line and the (k+4)-th gate line display a second color, and pixels connected to the (k+2)-th gate line and the (k+5)-th gate line display a third color.Type: ApplicationFiled: January 11, 2018Publication date: July 19, 2018Inventors: Hyeon Seok BAE, Haeng Won PARK
-
Patent number: 9865217Abstract: A method of driving a display panel includes generating a reference gate signal delayed by a predetermined period from a gate signal applied to a gate line disposed in a first end area of the display panel, the first end area being an area in which a RC delay of a data line is the smallest, receiving an input gate signal applied to a gate line disposed in a second area of the display panel, the second area being an area in which the RC delay of the data line is the largest; and selectively controlling a delay time of each of the plurality of gate signals applied to each of the plurality of gate lines according to a result of comparison between the reference gate signal and the input gate signal.Type: GrantFiled: March 27, 2015Date of Patent: January 9, 2018Assignee: Samsung Display Co., Ltd.Inventors: Myung-Ho Won, Dal-Jung Kwon, Haeng-Won Park, Hyeon-Seok Bae, Seung-Hoon Jung, Ho-Sup Choi
-
Patent number: 9202429Abstract: A 3D-capable image display device includes: a display panel having a plurality of pixels and a plurality of data lines; a gamma reference voltages generator for generating a plurality of gamma reference voltages including positive gamma reference voltages and negative gamma reference voltages; a data lines driver for converting an image signal into corresponding data line drive voltages based on the plurality of gamma reference voltages; and a signal controller operating according to a mode selection signal including information for selecting one of different 3D driving methods, wherein when a gap between the positive gamma reference voltages and the negative gamma reference voltages is referred to as a black gap, and size of the black gap is variable based on the selected 3D driving method.Type: GrantFiled: June 2, 2014Date of Patent: December 1, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hyeon Seok Bae, Haeng Won Park, Duck Yong Ahn, Min Jun Choi, Joo Young Choi
-
Publication number: 20150302816Abstract: A method of driving a display panel includes generating a reference gate signal delayed by a predetermined period from a gate signal applied to a gate line disposed in a first end area of the display panel, the first end area being an area in which a RC delay of a data line is the smallest, receiving an input gate signal applied to a gate line disposed in a second area of the display panel, the second area being an area in which the RC delay of the data line is the largest; and selectively controlling a delay time of each of the plurality of gate signals applied to each of the plurality of gate lines according to a result of comparison between the reference gate signal and the input gate signal.Type: ApplicationFiled: March 27, 2015Publication date: October 22, 2015Inventors: Myung-Ho WON, Dal-Jung KWON, Haeng-Won PARK, Hyeon-Seok BAE, Seung-Hoon JUNG, Ho-Sup CHOI
-
Publication number: 20150206496Abstract: A 3D-capable image display device includes: a display panel having a plurality of pixels and a plurality of data lines; a gamma reference voltages generator for generating a plurality of gamma reference voltages including positive gamma reference voltages and negative gamma reference voltages; a data lines driver for converting an image signal into corresponding data line drive voltages based on the plurality of gamma reference voltages; and a signal controller operating according to a mode selection signal including information for selecting one of different 3D driving methods, wherein when a gap between the positive gamma reference voltages and the negative gamma reference voltages is referred to as a black gap, and size of the black gap is variable based on the selected 3D driving method.Type: ApplicationFiled: June 2, 2014Publication date: July 23, 2015Applicant: Samsung Display Co., Ltd.Inventors: Hyeon Seok BAE, Haeng Won PARK, Duck Yong AHN, Min Jun CHOI, Joo Young CHOI
-
Patent number: 8823629Abstract: A method of driving a display device includes analyzing input data of the display device to confirm whether there is a predetermined image pattern in an image corresponding to the input data, where a common voltage is distorted to an extent that a clock signal for a gate driver of the display device is distorted when the display device displays the image including the predetermined image pattern, and changing a slew rate of an output buffer of a data driver of the display device based on a result of the analyzing the input data.Type: GrantFiled: March 22, 2012Date of Patent: September 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hyeon Seok Bae, Gyu Ik Kim, Choong Seob Oh, Hoon Jung, Seung Hoon Han
-
Patent number: 8723853Abstract: A driving device includes an output timing controller which controls an output timing of a first driving voltage and a second driving voltage respectively generated from a first voltage generator and a second voltage generator. A third driving voltage output from the output timing controller is provided to a first data driver and a second data driver, and also provided to a gamma voltage generator to generate a plurality of gamma voltages. Accordingly, a reverse electric potential between the third driving voltage and the gamma voltages is prevented from being generated in the first and second data drivers, therefore, preventing the first and second data drivers from being damaged.Type: GrantFiled: November 30, 2012Date of Patent: May 13, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hyeon-Seok Bae, Sang-Hoon Lee, Cheol-Ho Lee, Hun-Tae Kim
-
Publication number: 20130265347Abstract: A display apparatus a display panel that includes pixels arranged in rows by columns, which are connected to gate lines and data lines, a timing controller that outputs control signals and data signals, a gate driver that applies gate signals to the pixels through the gate lines, and a data driver that receives the data signals and applies data voltages corresponding to the data signals to the pixels through the data lines. The timing controller checks whether a pattern of data values corresponds to a checker pattern, in which black and white patterns are alternately repeated in a row direction and a column direction, checks whether an area of the checker pattern is equal to or greater than a predetermined area of the display panel, and compensates for the data signals in accordance with the checked result.Type: ApplicationFiled: March 5, 2013Publication date: October 10, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon Seok BAE, Jae-Yong KWON, Duckyong AHN, Jaeeun UM, Kwangyoul LEE, Sangchul LEE, Heung-Sik TAE
-
Publication number: 20130113848Abstract: A method of driving a display device includes analyzing input data of the display device to confirm whether there is a predetermined image pattern in an image corresponding to the input data, where a common voltage is distorted to an extent that a clock signal for a gate driver of the display device is distorted when the display device displays the image including the predetermined image pattern, and changing a slew rate of an output buffer of a data driver of the display device based on a result of the analyzing the input data.Type: ApplicationFiled: March 22, 2012Publication date: May 9, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeon Seok BAE, Gyu Ik KIM, Choong Seob OH, Hoon JUNG, Seung Hoon HAN
-
Patent number: 8379011Abstract: A driving device includes an output timing controller which controls an output timing of a first driving voltage and a second driving voltage respectively generated from a first voltage generator and a second voltage generator. A third driving voltage output from the output timing controller is provided to a first data driver and a second data driver, and also provided to a gamma voltage generator to generate a plurality of gamma voltages. Accordingly, a reverse electric potential between the third driving voltage and the gamma voltages is prevented from being generated in the first and second data drivers, therefore, preventing the first and second data drivers from being damaged.Type: GrantFiled: June 25, 2008Date of Patent: February 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hyeon-Seok Bae, Sang-Hoon Lee, Cheol-Ho Lee, Hun-Tae Kim
-
Patent number: 8339347Abstract: A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation.Type: GrantFiled: March 24, 2009Date of Patent: December 25, 2012Assignee: Samsung Display Co., Ltd.Inventors: Hyeon-Seok Bae, Sang-Chul Lee, Kwang-Youl Lee
-
Patent number: 8139056Abstract: A power generating module is provided in an LCD where the power generating module includes a first driving voltage generator, a second driving voltage generator and an output deviation controller. The first driving voltage generator generates and outputs a first set of LCD driving voltages including a first liquid crystal driving voltage and a first gate-on-voltage. The second driving voltage generator generates and outputs a similar second set of LCD driving voltages. The output deviation controller controls the first and second driving voltage generators using one or more feedback signals each corresponding to a potential difference between counterpart output voltages of the first driving voltage and the second driving voltage to reduce output deviations between those counterpart output voltages.Type: GrantFiled: August 18, 2008Date of Patent: March 20, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Cheol Ho Lee, Hyeon Seok Bae, Sang Chul Lee
-
Publication number: 20100085348Abstract: A display device and a method of driving the same are provided. The display device includes a display panel including a plurality of pixels defined in an area where a plurality of gate lines and data lines cross one another, a clock generator generating a gate clock signal using a clock generation control signal provided from a timing controller and a gate-on voltage, and a gate driver providing a gate signal to the gate lines in response to the gate clock signal. The gate signal includes a pre-charge period having a first gate-on level and a main-charge period having a second gate-on level that is higher than the first gate-on level.Type: ApplicationFiled: May 20, 2009Publication date: April 8, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Hyeon-Seok Bae, Sang -Chul Lee, Kwang-Youl Lee, Hyun-Ho Lee
-
Publication number: 20100033415Abstract: A liquid crystal display includes; a liquid crystal panel, and a DC-DC converter which receives an input voltage to generate an analog drive voltage and a gate-on voltage used to operate the liquid crystal panel, wherein the DC-DC converter includes a pulse width modulation circuit which modulates a pulse width of the analog drive voltage and the gate-on voltage, a boost converter which boosts the input voltage to output the analog drive voltage, and a charge pump which boosts one of the input voltage and the analog drive voltage to output the gate-on voltage, wherein when a high voltage stress test is performed, the DC-DC converter outputs the analog drive voltage boosted to a voltage level higher than a voltage level of the analog drive voltage during a normal operation, and outputs the gate-on voltage having a voltage level substantially equal to a voltage level of the gate-on voltage during the normal operation.Type: ApplicationFiled: March 24, 2009Publication date: February 11, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeon-Seok BAE, Sang-Chul LEE, Kwang-Youl LEE
-
Publication number: 20090167984Abstract: A backlight unit, and a display device having the backlight unit, includes a light source, the light source formed to directly illuminate a display panel, and an optical plate arranged over the light source, wherein the optical plate includes a first surface and a second surface that faces the first surface, and the first surface is different in height from the second surface.Type: ApplicationFiled: September 26, 2008Publication date: July 2, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang-Hoon LEE, Hyeon-Seok BAE, Cheol-Ho LEE
-
Publication number: 20090021507Abstract: A driving device includes an output timing controller which controls an output timing of a first driving voltage and a second driving voltage respectively generated from a first voltage generator and a second voltage generator. A third driving voltage output from the output timing controller is provided to a first data driver and a second data driver, and also provided to a gamma voltage generator to generate a plurality of gamma voltages. Accordingly, a reverse electric potential between the third driving voltage and the gamma voltages is prevented from being generated in the first and second data drivers, therefore, preventing the first and second data drivers from being damaged.Type: ApplicationFiled: June 25, 2008Publication date: January 22, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeon-Seok BAE, Sang-Hoon LEE, Cheol-Ho LEE, Hun-Tae KIM
-
Publication number: 20080084412Abstract: A liquid crystal display (“LCD”) device and method of driving the same capable of eliminating pressure induced light leakage includes a liquid crystal display comprising an LCD panel having a plurality of gate lines, a plurality of data lines formed in a direction to intersect the plurality of gate lines, and a plurality of unit pixels respectively formed at intersection regions of the plurality of gate and data lines; a power circuit for generating a plurality of driving voltages for driving the LCD panel; a gate driving unit for driving the plurality of gate lines; a source driving unit for driving the plurality of data lines; and a timing control circuit for generating plurality of control signals for controlling the gate and source driving units, wherein the timing control circuit drives the LCD panel in a non-electric field state every predetermined frame.Type: ApplicationFiled: August 21, 2007Publication date: April 10, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeon Seok BAE, Sang Chul LEE
-
Publication number: 20080007505Abstract: A driving apparatus includes a timing controller, a gate driver, and a pulse width controller. The timing controller generates a gate output enable signal having a width which is used for defining on-voltage widths of gate driving signals. The gate driver sequentially outputs the gate driving signals corresponds to a plurality of gate lines. The gate driver is controlled to prevent overlapping of the gate driving signals. The pulse width controller includes a signal generator and a converter. The signal generator receives two of the gate driving signals from two adjacent gate lines, compares the two gate driving signals, and generates a detection signal that detects an overlapping area of the two gate driving signals. The converter converts the detection signal to a pulse width control signal and feeds the pulse width control signal back to the timing controller. The timing controller receives the pulse width control signal and adjusts the width of the gate output enable signal.Type: ApplicationFiled: March 30, 2007Publication date: January 10, 2008Inventors: Ho-young Kim, Hyeon-seok Bae
-
Publication number: 20070146355Abstract: Provided are a driver that corrects a distorted image signal and a display device including the driver. The driver includes a control voltage signal generator which converts the voltage level of a control voltage signal according to an external signal, a clock signal generator which generates a clock signal whose duty ratio changes according to the voltage level of the control voltage signal, and a DC-DC converter which converts the level of an input voltage according to the duty ratio of the clock signal supplied from the clock signal generator and outputs the input voltage whose level is converted as a driving voltage.Type: ApplicationFiled: December 21, 2006Publication date: June 28, 2007Inventor: Hyeon-seok Bae