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公开(公告)号：US20210029347A1
公开(公告)日：2021-01-28
申请号：US16815986
申请日：2020-03-11
发明人： Hyun Seuk YOO , Dong Joon KWAG , Hyung Jin KIM , Seong Heon CHO
IPC分类号： H04N17/04 , G09G3/00 , G09G3/3225
摘要： A display device relates to a test image measuring device, and includes a housing including one side in which an opening is defined, and a reflector provided to be inclined by a predetermined angle from another side of the housing facing the opening, where a display device including a display unit and an imaging unit is provided above the opening, and a test image displayed from the display unit is photographed by the imaging unit through the reflector.
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公开(公告)号：US20200005691A1
公开(公告)日：2020-01-02
申请号：US16209727
申请日：2018-12-04
发明人： Hyun Seuk YOO , Hyung Jin KIM , Hye Sang PARK
摘要： An apparatus for testing a display panel and a driving method thereof. The apparatus includes: a driver for providing a test signal to a display panel; an image sensor for acquiring image data by photographing the display panel on which an image corresponding to the test signal is displayed; a luminance calculator for calculating luminance distribution data, based on the image data; and a compensation data generator for determining a compensation value with respect to pixels of the display panel, based on the luminance distribution data. The driver provides a test signal corresponding to a first gray scale level to a first region including a central portion of the display panel, and provides a test signal corresponding to a second gray scale level different from the first gray scale level to a second region.
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公开(公告)号：US20180103245A1
公开(公告)日：2018-04-12
申请号：US15700546
申请日：2017-09-11
发明人： Hyun Seuk YOO , Eun Ho LEE , Hyung Jin KIM , Hyun Dae LEE , Woo Seok HAN , Hee Chul HWANG
摘要： A head mounted display device includes a display unit divided into at least one first area and at least one second area, a lens unit which supplies an image displayed on the display unit to a user, and a frame which fixes the display unit and the lens unit thereto. The display unit includes a memory which stores first compensation data corresponding to the first area and second compensation data corresponding to the second area, and a position determiner which determines whether first data supplied from an outside belong to the first area or the second area.
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公开(公告)号：US20230368725A1
公开(公告)日：2023-11-16
申请号：US18142502
申请日：2023-05-02
发明人： Young Soo HWANG , Hyung Jin KIM
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2310/0267 , G09G2310/0275 , G09G2300/0426
摘要： A display device including a scan line extending in a first direction, a sensing scan line extending in the first direction and spaced from the scan line, a data line extending in a second direction crossing the first direction, a sensing line extending in the second direction and spaced from the data line, a sensing enable signal line extending in the second direction and spaced from the data line and the sensing line, and a sub-pixel connected to the scan line, the sensing scan line, the data line, the sensing line, and the sensing enable signal line. The sub-pixel includes a plurality of light emitting elements between a first node and a second node, a first transistor configured to supply a driving current to the first node according to a voltage of a gate electrode, and a second transistor to control a connection between the first and second nodes.
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公开(公告)号：US20220084459A1
公开(公告)日：2022-03-17
申请号：US17394966
申请日：2021-08-05
发明人： Dong Joon KWAG , Hyung Jin KIM , Seok Ha Hong
摘要： A method of generating compensation data in a display device includes setting a pixel group including a first target pixel and first non-target pixels adjacent to the first target pixel among a plurality of pixels of a display panel; switching on the first target pixel and switching off the first non-target pixels to generate a first captured image and store the first captured image; switching on the first target pixel and the first non-target pixels to generate a second captured image and store the second captured image; switching off the first target pixel and switching on the first non-target pixels to generate a third captured image and store the third captured image; and calculating luminance correction data of the first target pixel based on the stored first to third captured images.
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6.发明公开公开(公告)号：US20240233642A9
公开(公告)日：2024-07-11
申请号：US18492681
申请日：2023-10-23
发明人： Seok Ha HONG , Joon Chul GOH , Dong Joon KWAG , Hyung Jin KIM , Jae Sung BAE
IPC分类号： G09G3/3233 , G09G3/20 , H01L25/16
CPC分类号： G09G3/3233 , G09G3/2007 , H01L25/167 , G09G2300/0819 , G09G2300/0842 , G09G2320/0233 , G09G2320/0257 , G09G2320/0285 , G09G2320/045 , G09G2360/06
摘要： The display device includes a display panel and a pixel. A compensator configured to calculate a degradation rate of the pixel based on an input gray level of first image data, and compensates the first image data based on the degradation rate to generate second image data. A data driver configured to generate a data signal based on the second image data and configured to supply the data signal to the pixel. The pixel includes a first element group and a second element group connected in series to each other, the first element group includes at least one first light emitting element, and the second element group includes at least one second light emitting element. The compensator is to calculate the degradation rate by applying first information on the number of the first light emitting elements and second information on the number of the second light emitting elements.
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公开(公告)号：US20220070352A1
公开(公告)日：2022-03-03
申请号：US17397387
申请日：2021-08-09
发明人： Seok Ha HONG , Dong Joon KWAG , Hyung Jin KIM
IPC分类号： H04N5/235 , G09G3/3291
摘要： An optical compensation device includes a measurement part that measures a luminance of a reference point of a display panel displaying an image and a luminance of a neighboring point separated from the reference point to generate measurement data, a camera that photographs a surface of the display panel to generate a photographed image, and a compensation part that generates a scaling value of the neighboring point based on the measurement data of the reference point, a photographed data generated based on the photographed image of the reference point, the measurement data of the neighboring point, and a photographed data generated based on the photographed image of the neighboring point, and generates compensation data of the neighboring point based on the scaling value of the neighboring point and the photographed data of the reference point.
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公开(公告)号：US20210383736A1
公开(公告)日：2021-12-09
申请号：US17152629
申请日：2021-01-19
发明人： Seok Ha HONG , Dong Joon KWAG , Hyung Jin KIM , Hye Sang PARK
IPC分类号： G09G3/20
摘要： A luminance compensating apparatus includes a luminance characteristic value calculator calculating a first luminance characteristic value corresponding to a first unit section between first and second reference gray levels, and a second luminance characteristic value corresponding to a second unit section between second and third reference gray levels based on a first luminance value, a second luminance value, and a third luminance value; an expected correction gray level calculator calculating an expected correction gray level corresponding to the first reference gray level based on the first luminance value; and a compensation gray level calculator calculating a gamma compensation value based on the first luminance characteristic value when the expected correction gray level is included in the first unit section, and based on the first luminance characteristic value and the second luminance characteristic value when the expected correction gray level is included in the second unit section.
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9.发明公开公开(公告)号：US20240135880A1
公开(公告)日：2024-04-25
申请号：US18492681
申请日：2023-10-22
发明人： Seok Ha HONG , Joon Chul GOH , Dong Joon KWAG , Hyung Jin KIM , Jae Sung BAE
IPC分类号： G09G3/3233 , G09G3/20 , H01L25/16
CPC分类号： G09G3/3233 , G09G3/2007 , H01L25/167 , G09G2300/0819 , G09G2300/0842 , G09G2320/0233 , G09G2320/0257 , G09G2320/0285 , G09G2320/045 , G09G2360/06
摘要： The display device includes a display panel and a pixel. A compensator configured to calculate a degradation rate of the pixel based on an input gray level of first image data, and compensates the first image data based on the degradation rate to generate second image data. A data driver configured to generate a data signal based on the second image data and configured to supply the data signal to the pixel. The pixel includes a first element group and a second element group connected in series to each other, the first element group includes at least one first light emitting element, and the second element group includes at least one second light emitting element. The compensator is to calculate the degradation rate by applying first information on the number of the first light emitting elements and second information on the number of the second light emitting elements.
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公开(公告)号：US20240144860A1
公开(公告)日：2024-05-02
申请号：US18242091
申请日：2023-09-05
发明人： Seok Ha HONG , Hyung Jin KIM , Kyung Su LEE
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2300/0465 , G09G2300/0842 , G09G2330/021
摘要： A display device includes: a memory; a pixel unit including first pixels disposed with a first density in a first area and second pixels disposed with a second density smaller than the first density in a second area in contact with the first area; and a degradation compensator which updates degradation information stored in the memory, based on input grayscales for the first and second pixels, and changes the input grayscales to output grayscales, based on the degradation information. The degradation compensator stores the degradation information in the memory in a unit of block for the pixel unit. The memory stores only first degradation information for each of first blocks including only the first pixels, stores only second degradation information for each of second blocks including only the second pixels, and stores the first and second degradation information for each of third blocks including both the first and second pixels.
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