Patents by Inventor Ji Hong YUK
Ji Hong YUK 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).
-
Publication number: 20240304154Abstract: In a case when a camera is disposed under a display panel, a bounded part between a camera area and a surrounding area may have a brightness difference due to a difference in pixel disposition density. The present disclosure allows minimizing such a boundary effect by compensating for greyscale values of pixels in the bounded part.Type: ApplicationFiled: May 16, 2024Publication date: September 12, 2024Applicant: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Jun Hun Park, Xin Cui
-
Patent number: 12046197Abstract: The present embodiment provides an image data processing apparatus, including a memory storing previous frame image data and an image data compensating circuit configured to generate overdriving image data for current frame image data by comparing the previous frame image data and the current frame image data, wherein the degree of an overdriving is adjusted based on a display brightness value (DBV), which is used for adjusting the brightness of a display panel.Type: GrantFiled: May 25, 2022Date of Patent: July 23, 2024Assignee: LX SEMICON CO., LTD.Inventors: Ji Won Lee, Ji Hong Yuk, Sa Ra Yoon
-
Patent number: 12014691Abstract: In a case when a camera is disposed under a display panel, a bounded part between a camera area and a surrounding area may have a brightness difference due to a difference in pixel disposition density. The present disclosure allows minimizing such a boundary effect by compensating for greyscale values of pixels in the bounded part.Type: GrantFiled: October 26, 2021Date of Patent: June 18, 2024Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Jun Hun Park, Xin Cui
-
Publication number: 20240169888Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.Type: ApplicationFiled: November 15, 2023Publication date: May 23, 2024Applicant: SILICON WORKS CO., LTD.Inventors: Dae Hee BAE, Bo Sung KIM, Jun Hun PARK, Ji Hong YUK, Sung Woo HAN, Ji Hoon CHOI
-
Publication number: 20240087501Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.Type: ApplicationFiled: November 15, 2023Publication date: March 14, 2024Applicant: SILICON WORKS CO., LTD.Inventors: Dae Hee BAE, Bo Sung KIM, Jun Hun PARK, Ji Hong YUK, Sung Woo HAN, Ji Hoon CHOI
-
Patent number: 11887549Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device. A color gamut mapping method may include converting, by a color space converter, first three-color signals into a first luminance component and a pair of first chrominance components and outputting the first luminance component and the pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain of the saturation controller and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, interpolating, by an overall controller, a set value of a luminance gain using grayscale differences between the first three-color signals, outputting a second luminance component by controlling first luminance component using the interpolated luminance gain.Type: GrantFiled: November 3, 2021Date of Patent: January 30, 2024Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Patent number: 11837150Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.Type: GrantFiled: August 14, 2020Date of Patent: December 5, 2023Assignee: SILICON WORKS CO., LTD.Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
-
Patent number: 11670256Abstract: The disclosure relates to a color gamut mapping device that allows a gamma characteristic for each color to be tuned to match a target gamma curve through color gamut mapping, a tuning method thereof, and an image processor including the same. The color gamut mapping device controls a hue and saturation of an image signal to match a target color gamut using a hue parameter assigned to each of a plurality of hue axes and a saturation parameter assigned to correspond to each of a plurality of saturation control areas of each hue axis, and the color gamut mapping device changes the saturation of the image signal by changing the saturation parameter which is assigned to each hue axis and corresponds to the uppermost saturation control area so that a gamma characteristic for each color of the image signal is changed to match a target gamma curve for each color.Type: GrantFiled: November 17, 2021Date of Patent: June 6, 2023Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Patent number: 11640800Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device that allow precise color gamut tuning to be efficiently performed, and a display device including the same. A color gamut mapping method according to an aspect includes converting, by a color space converter, a first color signal of an input image into a first luminance component and a pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, entirely controlling, by an overall controller, a saturation and a hue of the third chrominance component using overall saturation gains and overall hue gains and outputting a fourth chrominance component, and inversely converting.Type: GrantFiled: November 3, 2021Date of Patent: May 2, 2023Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Patent number: 11587525Abstract: The present disclosure relates to a tuning method and apparatus for a color gamut mapping device, in which a tuning time is shortened by automatically setting and changing parameters of a register when tuning the color gamut mapping device. A tuning method of a color gamut mapping device according to an aspect includes an initial setting operation of setting, by a test device, initial parameters in a register of a color gamut mapping device, a measuring operation of measuring, by a measuring device, chromaticity for each of a plurality of color images which are supplied from the test device and displayed on a panel of a display device through the color gamut mapping device, an automatic tuning operation of changing, by the test device, saturation parameters and hue parameters of a plurality of hue axes of the color gamut mapping device by using a result measured from the measuring device.Type: GrantFiled: November 17, 2021Date of Patent: February 21, 2023Assignee: LX SEMICON CO., LTD.Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Min Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Publication number: 20220383805Abstract: The present embodiment provides an image data processing apparatus, including a memory storing previous frame image data and an image data compensating circuit configured to generate overdriving image data for current frame image data by comparing the previous frame image data and the current frame image data, wherein the degree of an overdriving is adjusted based on a display brightness value (DBV), which is used for adjusting the brightness of a display panel.Type: ApplicationFiled: May 25, 2022Publication date: December 1, 2022Applicant: LX Semicon Co., Ltd.Inventors: Ji Won LEE, Ji Hong YUK, Sa Ra YOON
-
Publication number: 20220165232Abstract: The disclosure relates to a color gamut mapping device that allows a gamma characteristic for each color to be tuned to match a target gamma curve through color gamut mapping, a tuning method thereof, and an image processor including the same. The color gamut mapping device controls a hue and saturation of an image signal to match a target color gamut using a hue parameter assigned to each of a plurality of hue axes and a saturation parameter assigned to correspond to each of a plurality of saturation control areas of each hue axis, and the color gamut mapping device changes the saturation of the image signal by changing the saturation parameter which is assigned to each hue axis and corresponds to the uppermost saturation control area so that a gamma characteristic for each color of the image signal is changed to match a target gamma curve for each color.Type: ApplicationFiled: November 17, 2021Publication date: May 26, 2022Inventors: Hyun Kyu JEON, Ji Won LEE, Ji Hong YUK, Chang Young BAE, Seul Gi LEE
-
Publication number: 20220165233Abstract: The present disclosure relates to a tuning method and apparatus for a color gamut mapping device, in which a tuning time is shortened by automatically setting and changing parameters of a register when tuning the color gamut mapping device. A tuning method of a color gamut mapping device according to an aspect includes an initial setting operation of setting, by a test device, initial parameters in a register of a color gamut mapping device, a measuring operation of measuring, by a measuring device, chromaticity for each of a plurality of color images which are supplied from the test device and displayed on a panel of a display device through the color gamut mapping device, an automatic tuning operation of changing, by the test device, saturation parameters and hue parameters of a plurality of hue axes of the color gamut mapping device by using a result measured from the measuring device.Type: ApplicationFiled: November 17, 2021Publication date: May 26, 2022Inventors: Hyun Kyu JEON, Ji Won Lee, Ji Min Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Publication number: 20220139342Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device. A color gamut mapping method may include converting, by a color space converter, first three-color signals into a first luminance component and a pair of first chrominance components and outputting the first luminance component and the pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain of the saturation controller and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, interpolating, by an overall controller, a set value of a luminance gain using grayscale differences between the first three-color signals, outputting a second luminance component by controlling first luminance component using the interpolated luminance gain.Type: ApplicationFiled: November 3, 2021Publication date: May 5, 2022Inventors: Hyun Kyu JEON, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Publication number: 20220139336Abstract: In a case when a camera is disposed under a display panel, a bounded part between a camera area and a surrounding area may have a brightness difference due to a difference in pixel disposition density. The present disclosure allows minimizing such a boundary effect by compensating for greyscale values of pixels in the bounded part.Type: ApplicationFiled: October 26, 2021Publication date: May 5, 2022Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Jun Hun Park, Xin Cui
-
Publication number: 20220139343Abstract: The present disclosure relates to a color gamut mapping method and a color gamut mapping device that allow precise color gamut tuning to be efficiently performed, and a display device including the same. A color gamut mapping method according to an aspect includes converting, by a color space converter, a first color signal of an input image into a first luminance component and a pair of first chrominance components, controlling, by a saturation controller, a saturation of the first chrominance component for each control area using a saturation gain and outputting a second chrominance component, controlling, by a hue controller, a hue of the second chrominance component for each control area and outputting a third chrominance component, entirely controlling, by an overall controller, a saturation and a hue of the third chrominance component using overall saturation gains and overall hue gains and outputting a fourth chrominance component, and inversely converting.Type: ApplicationFiled: November 3, 2021Publication date: May 5, 2022Inventors: Hyun Kyu Jeon, Ji Won Lee, Ji Hong Yuk, Chang Young Bae, Seul Gi Lee
-
Patent number: 11295661Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area and a second display area, the second display area being disposed so as to overlap an optical module, and a controller configured to generate display area information of each of the plurality of pixels and border information of pixels provided in a border area located within a predetermined range from a border between the first display area and the second display area, to change an image that is displayed in at least one of the first display area or the second display area based on the display area information and the border information upon determining that the optical module is operated, and to perform control such that the changed image is displayed on the display panel.Type: GrantFiled: August 14, 2020Date of Patent: April 5, 2022Assignee: SILICON WORKS CO., LTD.Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
-
Patent number: 11289050Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel including a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate border information of pixels provided in a border area located within a predetermined range from the border between the first display area and the second display area, to correct an image that is displayed in the border area based on the border information, and to perform control such that the corrected image is displayed on the display panel.Type: GrantFiled: August 14, 2020Date of Patent: March 29, 2022Assignee: SILICON WORKS CO., LTD.Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
-
Patent number: 11114009Abstract: Disclosed is a display device including a display panel having a plurality of pixels, each of the pixels including at least two subpixels, the display panel including a first display area and a second display area, the second display area being disposed to overlap an optical module, a memory configured to store shape information of the second display area including position information of a starting point, vertical length information of the second display area, and line-based direction information and width information indicating the border of the second display area, and a controller configured to change an image that is displayed in at least one of the first display area and the second display area using the shape information of the second display area and to perform control such that the changed image is displayed on the display panel.Type: GrantFiled: August 14, 2020Date of Patent: September 7, 2021Assignee: SILICON WORKS CO., LTD.Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
-
Publication number: 20210049950Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area having first resolution and a second display area having second resolution, the second resolution being lower than the first resolution, and a controller configured to generate display area information of each of the plurality of pixels, to blur an image that is displayed in the second display area based on the display area information, and to perform control such that the blurred image is displayed on the display panel.Type: ApplicationFiled: August 14, 2020Publication date: February 18, 2021Inventors: Dae Hee BAE, Bo Sung KIM, Jun Hun PARK, Ji Hong YUK, Sung Woo HAN, Ji Hoon CHOI