Patents by Inventor Tae Kwon Jung
Tae Kwon Jung 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: 11950383Abstract: A display apparatus according to a concept of the disclosure includes: a display panel configured to display an image in a front direction; a top chassis positioned in a front direction of the display panel; a bottom chassis positioned in a rear direction of the display panel; a rear cover covering a rear side of the bottom chassis; and a stand member being accommodatable in the rear cover and selectively coupled with a rear surface of the rear cover, wherein the rear cover includes an accommodating portion in which the stand member is accommodated and a coupling portion coupled with the stand member, and the stand member includes an inserting protrusion which is inserted into the accommodating portion and the coupling portion.Type: GrantFiled: August 27, 2019Date of Patent: April 2, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee-Bong Kim, Dong Wook Kim, Ji-Gwang Kim, Tae-Hun Kim, Yong Gu Do, Jeong Woo Park, Gil Jae Lee, Sang Young Lee, Pil Kwon Jung, Su-An Choi
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Patent number: 9099049Abstract: A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.Type: GrantFiled: December 2, 2013Date of Patent: August 4, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Kwon Jung, Dongmin Yeo, Byungchoon Yang, Yong-Hoon Kwon
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Patent number: 8947470Abstract: In a display apparatus, a display panel is divided into dimming areas and a backlight device includes light source blocks providing light to the dimming areas. Average gray-scale values and maximum gray-scale values respectively corresponding to the dimming areas are generated based on image signals provided to the dimming areas. Whether the average gray-scale values and the maximum gray-scale values are respectively within first and second reference ranges are checked. One of at least two parameters is selected according to a checked result, and representative brightness values respectively corresponding to the dimming areas are determined using the selected parameter. Duty ratios of the light source blocks are controlled based on the representative brightness values. As a result, power consumption is reduced when applying a dimming device to the display apparatus.Type: GrantFiled: July 12, 2011Date of Patent: February 3, 2015Assignee: Samsung Display Co., Ltd.Inventors: Dae-Gwang Jang, Tae Kwon Jung, Donghak Pyo, Min Ha Keum, Hak-Mo Choi
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Patent number: 8866729Abstract: A method of driving a light source unit of a liquid crystal display panel according to an exemplary embodiment of the present disclosure includes the steps of calculating average and maximum values of image signals applied to the liquid crystal panel; calculating a representative value of the image signals using the average and maximum values; determining the luminance of the light source unit according to the representative value and driving the light source unit accordingly. The representative value may be calculated from Lrep=(1??)×Lavg+?×Lmax, where Lrep is a representative value, Lavg is an average value, Lmax is the maximum value, and ? is a value that decreases as a difference between the maximum and average image signal values increases, and has a range between 0 and 1.Type: GrantFiled: September 22, 2011Date of Patent: October 21, 2014Assignee: Samsung Display Co., Ltd.Inventors: Min Ha Keum, Tae Kwon Jung, Dae-Gwang Jang, Dong Hak Pyo, Hak-Mo Choi
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Patent number: 8848117Abstract: A display apparatus includes a shutter panel and a display panel that alternately displays a left-eye image and a right-eye image in a 3D mode. The shutter panel includes dual-frequency liquid crystals in which a polarity of dielectric constant anisotropy is changed according to a frequency of the driving voltage to selectively delay a phase of the left-eye image or the right-eye image, which pass through the dual-frequency liquid crystals. The dual-frequency liquid crystals have a fast response speed to the low voltage, and thus a cross-talk phenomenon between the left-eye image and the right-eye image may be prevented.Type: GrantFiled: May 11, 2012Date of Patent: September 30, 2014Assignee: Samsung Display Co., Ltd.Inventors: Gak Seok Lee, Jaehyoung Park, Kichul Shin, Youn Hak Jeong, Tae Kwon Jung, Haksun Chang
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Patent number: 8767000Abstract: A data processing method compensates a color of input data for a present frame of a display panel of a display apparatus to generate color compensating data. Dimming levels of a plurality of light emitting blocks included in a light source module for the display panel are determined using the color compensating data. Compensating data of the present frame is generated using the color compensating data and compensating coefficient data including the dimming levels.Type: GrantFiled: July 26, 2011Date of Patent: July 1, 2014Assignee: Samsung Display Co., Ltd.Inventors: Dong-Hak Pyo, Tae-Kwon Jung, Dae-Gwang Jang, Min-Ha Keum, Hak-Mo Choi
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Publication number: 20140085351Abstract: A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: TAE KWON JUNG, Dongmin Yeo, Byungchoon Yang, Yong-Hoon Kwon
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Patent number: 8599225Abstract: A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.Type: GrantFiled: December 16, 2010Date of Patent: December 3, 2013Assignee: Samsung Display Co., Ltd.Inventors: Tae Kwon Jung, Dongmin Yeo, Byungchoon Yang, Yong-Hoon Kwon
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Publication number: 20130141653Abstract: A display apparatus includes a shutter panel and a display panel that alternately displays a left-eye image and a right-eye image in a 3D mode. The shutter panel includes dual-frequency liquid crystals in which a polarity of dielectric constant anisotropy is changed according to a frequency of the driving voltage to selectively delay a phase of the left-eye image or the right-eye image, which pass through the dual-frequency liquid crystals. The dual-frequency liquid crystals have a fast response speed to the low voltage, and thus a cross-talk phenomenon between the left-eye image and the right-eye image may be prevented.Type: ApplicationFiled: May 11, 2012Publication date: June 6, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Gak Seok LEE, Jaehyoung PARK, Kichul SHIN, Youn Hak JEONG, Tae Kwon JUNG, Haksun CHANG
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Publication number: 20130063428Abstract: A method of displaying an image, the method includes providing a source data frame and at least one copy data frame repeating the source data frame to a display panel and, selectively providing boosted light of a first luminance level to the display panel during a first period and normal light of a second luminance level to the display panel during a second period, based on the source data frame and the copy data frame, the second luminance level being smaller than the first luminance level, the second period being longer than the first period.Type: ApplicationFiled: September 7, 2012Publication date: March 14, 2013Inventors: Hak-Mo CHOI, Tae-Kwon Jung, Min-Kyu Park, Kwan-Young Oh
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Publication number: 20120206502Abstract: A method of driving a display panel determines luminance coefficients of a plurality of light emitting blocks included in a light source module using a Gaussian function. A pixel luminance is determined using the luminance coefficient and dimming levels of the light emitting block. The pixel luminance is a luminance of light provided to each pixel of the display panel. Input data compensated using the pixel luminance to generate compensated data. The pixel luminance provided to the pixels is calculated by considering the luminance change due to the adjacent light emitting blocks. Thus, the luminance of the input data is accurately displayed.Type: ApplicationFiled: November 9, 2011Publication date: August 16, 2012Inventors: Tae-Kwon Jung, Dae-Gwang Jang, Dong-Hak Pyo, Min-Ha Keum, Hak-Mo Choi
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Publication number: 20120200609Abstract: A driving method of a liquid crystal display is provided for improving an echo phenomenon in the screen and improving crosstalk in a 3D display device. The liquid crystal display includes a liquid crystal panel and a light source unit divided into a plurality of blocks and that irradiates light by a light source unit of the corresponding block being driven at a response time of liquid crystals of the liquid crystal panel. Data of a liquid crystal panel corresponding to the plurality of blocks is analyzed to determine an n-th block corresponding to a portion having the highest visibility. Driving periods of light source units of the n-th block, an (n?1)-th block, and an (n+1)-th block are synchronized.Type: ApplicationFiled: September 23, 2011Publication date: August 9, 2012Inventors: Hak-Mo CHOI, Tae Kwon JUNG, Dae-Gwang JANG, Dong Hak PYO, Min Ha KEUM
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Publication number: 20120194536Abstract: A data processing method compensates a color of input data for a present frame of a display panel of a display apparatus to generate color compensating data. Dimming levels of a plurality of light emitting blocks included in a light source module for the display panel are determined using the color compensating data. Compensating data of the present frame is generated using the color compensating data and compensating coefficient data including the dimming levels.Type: ApplicationFiled: July 26, 2011Publication date: August 2, 2012Inventors: Dong-Hak PYO, Tae-Kwon JUNG, Dae-Gwang JANG, Min-Ha KEUM, Hak-Mo CHOI
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Publication number: 20120194568Abstract: A method of driving a light source unit of a liquid crystal display panel according to an exemplary embodiment of the present disclosure includes the steps of calculating average and maximum values of image signals applied to the liquid crystal panel; calculating a representative value of the image signals using the average and maximum values; determining the luminance of the light source unit according to the representative value and driving the light source unit accordingly. The representative value may be calculated from Lrep?(1??)×Lavg+?×Lmax, where Lrep is a representative value, Lavg is an average value, Lmax is the maximum value, and ? is a value that decreases as a difference between the maximum and average image signal values increases, and has a range between 0 and 1.Type: ApplicationFiled: September 22, 2011Publication date: August 2, 2012Inventors: Min Ha Keum, Tae Kwon Jung, Dae-Gwang Jang, Dong Hak Pyo, Hak-Mo Choi
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Publication number: 20120162276Abstract: In a display apparatus, a display panel is divided into dimming areas and a backlight device includes light source blocks providing light to the dimming areas. Average gray-scale values and maximum gray-scale values respectively corresponding to the dimming areas are generated based on image signals provided to the dimming areas. Whether the average gray-scale values and the maximum gray-scale values are respectively within first and second reference ranges are checked. One of at least two parameters is selected according to a checked result, and representative brightness values respectively corresponding to the dimming areas are determined using the selected parameter. Duty ratios of the light source blocks are controlled based on the representative brightness values. As a result, power consumption is reduced when applying a dimming device to the display apparatus.Type: ApplicationFiled: July 12, 2011Publication date: June 28, 2012Inventors: Dae-Gwang Jang, Tae Kwon Jung, Donghak Pyo, Min Ha Keum, Hak-Mo Choi
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Publication number: 20110227957Abstract: A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.Type: ApplicationFiled: December 16, 2010Publication date: September 22, 2011Inventors: Tae Kwon Jung, Dongmin Yeo, Byungchoon Yang, Yong-Hoon Kwon