Patents by Inventor Seung-Hwan Moon
Seung-Hwan Moon 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: 10319328Abstract: A display device and method is provided that permits selection of a first lookup table or a second lookup table to operate the data driver at respectively different temperatures to prevent heat from damaging the display device. The display device includes a detector which detects the number of toggles in which the amount of change in gray values of successive pixels driven by the same data line in one frame is equal to or greater than a reference gray change amount. A comparator compares the number of toggles detected by the detector with a reference number of toggles, and a lookup table selector which selects any one of a first lookup table and a second lookup table based on the comparison result of the comparator and provides the selected first lookup table or second lookup table to a data driver.Type: GrantFiled: November 1, 2017Date of Patent: June 11, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyun Ho Kim, Bong Gyun Kang, Sang An Kwon, Seung Hwan Moon, Yong Jin Shin, Neung Beom Lee, Jun Pyo Lee, Kyung Hwa Lim
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Patent number: 10140944Abstract: A display device for improving display quality includes a pulse compensator, a gate driver, a source driver and a display panel. The pulse compensator generates a clock signal of which amplitude decreases when peripheral temperature increases and increases when peripheral temperature decreases. The gate driver outputs a gate driving signal to the display panel based on the clock signal, wherein an amplitude of the gate driving signal decreases when the peripheral temperature increases and the amplitude of the gate driving signal increases when the peripheral temperature decreases. The source driver provides a gray-scale voltage based on gray-scale data, and the display panel displays an image corresponding to the gray-scale voltage in response to the gate driving signal. Therefore, the deterioration in the drive capability of the gate driver depending on the peripheral temperature may be prevented and display quality of the display device may be improved.Type: GrantFiled: June 3, 2016Date of Patent: November 27, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seoung-Bum Pyoun, Seung-Hwan Moon
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Publication number: 20180301105Abstract: A display device and method is provided that permits selection of a first lookup table or a second lookup table to operate the data driver at respectively different temperatures to prevent heat from damaging the display device. The display device includes a detector which detects the number of toggles in which the amount of change in gray values of successive pixels driven by the same data line in one frame is equal to or greater than a reference gray change amount. A comparator compares the number of toggles detected by the detector with a reference number of toggles, and a lookup table selector which selects any one of a first lookup table and a second lookup table based on the comparison result of the comparator and provides the selected first lookup table or second lookup table to a data driver.Type: ApplicationFiled: November 1, 2017Publication date: October 18, 2018Inventors: KYUN HO KIM, Bong Gyun KANG, Sang An KWON, Seung Hwan MOON, Yong Jin SHIN, Neung Beom LEE, Jun Pyo LEE, Kyung Hwa LIM
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Patent number: 10074334Abstract: A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.Type: GrantFiled: May 22, 2017Date of Patent: September 11, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Haeng-Won Park, Seung-Hwan Moon, Nam-Soo Kang, Sung-Jae Moon, Sung-Man Kim, Seong-Young Lee, Yong-Soon Lee
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Publication number: 20180246387Abstract: A liquid crystal display includes a display panel including first and second subpixels, where the first subpixel includes a first switching device including a first electrode connected to the j-th data line, a second electrode connected to a first subpixel electrode and a gate electrode connected to an i-th gate line, the second subpixel includes a second switching device including a first electrode connected to a j-th data line, a second electrode connected to a second subpixel electrode and a gate electrode connected to the i-th gate line, a third switching device including a first electrode connected to the second subpixel electrode and a gate electrode connected to the i-th gate line, and a fourth switching device including a first electrode connected to the j-th data line, a second electrode connected to the first electrode of the third switching device and a gate electrode connected to the i-th gate line.Type: ApplicationFiled: April 23, 2018Publication date: August 30, 2018Inventors: Keum Dong Jung, Seung Hwan Moon, Seong Young Lee
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Patent number: 10026371Abstract: A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.Type: GrantFiled: September 18, 2017Date of Patent: July 17, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Nam-Soo Kang, Seong-Young Lee, Sung-Man Kim, Seung-Hwan Moon
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Patent number: 10025149Abstract: Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.Type: GrantFiled: January 22, 2018Date of Patent: July 17, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong-Gyu Kim, Seung-Hwan Moon, Yong-Soon Lee, Nam-Soo Kang, Haeng-Won Park
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Patent number: 9983453Abstract: A liquid crystal display includes a display panel including first and second subpixels, where the first subpixel includes a first switching device including a first electrode connected to the j-th data line, a second electrode connected to a first subpixel electrode and a gate electrode connected to an i-th gate line, the second subpixel includes a second switching device including a first electrode connected to a j-th data line, a second electrode connected to a second subpixel electrode and a gate electrode connected to the i-th gate line, a third switching device including a first electrode connected to the second subpixel electrode and a gate electrode connected to the i-th gate line, and a fourth switching device including a first electrode connected to the j-th data line, a second electrode connected to the first electrode of the third switching device and a gate electrode connected to the i-th gate line.Type: GrantFiled: January 13, 2016Date of Patent: May 29, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Keum Dong Jung, Seung Hwan Moon, Seong Young Lee
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Publication number: 20180143478Abstract: Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.Type: ApplicationFiled: January 22, 2018Publication date: May 24, 2018Inventors: Dong-Gyu KIM, Seung-Hwan MOON, Yong-Soon LEE, Nam-Soo KANG, Haeng-Won PARK
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Patent number: 9874794Abstract: Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.Type: GrantFiled: April 11, 2016Date of Patent: January 23, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong-Gyu Kim, Seung-Hwan Moon, Yong-Soon Lee, Nam-Soo Kang, Haeng-Won Park
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Publication number: 20180005593Abstract: A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.Type: ApplicationFiled: September 18, 2017Publication date: January 4, 2018Inventors: Nam-Soo KANG, Seong-Young LEE, Sung-Man KIM, Seung-Hwan MOON
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Patent number: 9799285Abstract: A display apparatus includes a display panel which displays an image, a compensation area determiner which divides a display area of the display panel into a compensation area and a normal area, a compensation coefficient determiner which determines a compensation coefficient corresponding to input data of the compensation area, a compensation look up table which stores a noise compensation data which compensates a luminance difference of the compensation area by an interference noise of a light-source driving signal, and a correction data calculator which calculates a correction data corresponding to the input data of the compensation area using the compensation coefficient and the noise compensation data.Type: GrantFiled: May 28, 2015Date of Patent: October 24, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Eun Jang, Seung-Hwan Moon, Sung-In Kang, Kyun-Ho Kim, Min-Ho Park, Shim-Ho Yi, Go-Eun Cha
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Patent number: 9794548Abstract: A 3-dimensional image display device includes a signal controller, a data driver, a display panel, and glasses. The signal controller includes a reference gamma data generator to correct image data. The data driver includes a gray voltage generator to generate a gray voltage based on the corrected image data. The display panel displays left-eye and right-eye images based on a data voltage from the data driver. The lenses of the glasses are controlled by a glasses synchronization signal from the signal controller, to compensate for charging rates of the left-eye and right-eye images.Type: GrantFiled: May 15, 2014Date of Patent: October 17, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun-Sik Yoon, Jae Hyoung Park, Jun Pyo Lee, Seung Hwan Moon, Dong Won Park, Byung Kil Jeon
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Publication number: 20170270885Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.Type: ApplicationFiled: June 5, 2017Publication date: September 21, 2017Inventors: JAE-HOON LEE, SEUNG-HWAN MOON, YONG-SOON LEE, YOUNG-SU KIM, CHANG-HO LEE, WHEE-WON LEE, JUN-YONG SONG, YU-HAN BAE
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Patent number: 9767746Abstract: A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.Type: GrantFiled: October 24, 2016Date of Patent: September 19, 2017Assignee: Samsung Display Co., Ltd.Inventors: Nam-Soo Kang, Seong-Young Lee, Sung-Man Kim, Seung-Hwan Moon
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Publication number: 20170256226Abstract: A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.Type: ApplicationFiled: May 22, 2017Publication date: September 7, 2017Inventors: Haeng-Won PARK, Seung-Hwan MOON, Nam-Soo KANG, Sung-Jae MOON, Sung-Man KIM, Seong-Young LEE, Yong-Soon LEE
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Patent number: 9672792Abstract: The present invention provides a display device with reduced power consumption and that reduces changes in luminance, and perceptibility of flicker, and a driving method thereof. A display device according to an exemplary embodiment comprises: a display panel configured to display a still image and a motion picture; a signal controller configured to control signals for driving the display panel; and a graphics processing unit configured to transmit input image data to the signal controller, wherein the signal controller comprises a frame memory configured to store the input image data, and the display panel is driven at a first frequency when the motion picture is displayed and the display panel is driven at a second frequency that is lower than the first frequency when the still image is displayed.Type: GrantFiled: August 26, 2015Date of Patent: June 6, 2017Assignee: Samsung Display Co., Ltd.Inventors: Yong-Jun Choi, Jae-Won Jeong, Jae-Suk Choi, Seung-Ho Baek, Joo Seok Yeom, Young-Su Han, Myeong-Su Kim, Yun-Jae Kim, Jin-Soo Kim, Seung Hwan Moon, Po-Yun Park, Jae Wan Park, Kwan-Young Oh, Min Joo Lee, Jung Hwan Cho
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Patent number: 9672087Abstract: Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.Type: GrantFiled: July 15, 2014Date of Patent: June 6, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jong-Jae Lee, Eui-Dong Hwang, Bon-Sung Koo, Jun-Dal Kim, Seung-Hwan Moon, Dong-Won Park
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Patent number: 9672782Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.Type: GrantFiled: November 19, 2010Date of Patent: June 6, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Hoon Lee, Seung-Hwan Moon, Yong-Soon Lee, Young-Su Kim, Chang-Ho Lee, Whee-Won Lee, Jun-Yong Song, Yu-Han Bae
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Patent number: 9659542Abstract: A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.Type: GrantFiled: September 19, 2005Date of Patent: May 23, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Haeng-Won Park, Seung-Hwan Moon, Nam-Soo Kang, Sung-Jae Moon, Sung-Man Kim, Seong-Young Lee, Yong-Soon Lee