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公开(公告)号：US20210256894A1
公开(公告)日：2021-08-19
申请号：US17013251
申请日：2020-09-04
Applicant: Samsung Display Co., LTD.
Inventor： Byoung Seok YOO , Hoi Sik MOON
Abstract: A display device includes a plurality of pixels, and a plurality of data lines connected to the plurality of pixels; a data driver for transmitting a data voltage to the data line; and a signal controller for receiving input image signals from the outside and outputting a digital image signal to the data driver. The signal controller includes an adjacent image signal compensator for comparing input gray data of the input image signals to be continuously input to the data line and generating adjacent image signal compensation data based on the comparison, and a pixel characteristic compensator for generating pixel characteristic compensation data according to a characteristic of a pixel to be displayed.
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公开(公告)号：US20200090625A1
公开(公告)日：2020-03-19
申请号：US16529640
申请日：2019-08-01
Applicant: Samsung Display Co., Ltd.
Inventor： Byoung Seok YOO , Hoi Sik MOON , Jeongwoon LEE
IPC: G09G5/10
Abstract: An image data correcting device included in a display device includes a correction data memory and a correction calculator. The correction data memory stores sampling window select information indicating a sampling window selected from a plurality of sampling windows that are different from each other, and correction data obtained utilizing the selected sampling window with respect to the display device. The correction calculator receives image data, and corrects the image data based on the correction data for pixels at positions corresponding to the selected sampling window indicated by the sampling window select information.
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公开(公告)号：US20210264838A1
公开(公告)日：2021-08-26
申请号：US17146717
申请日：2021-01-12
Applicant: Samsung Display Co., Ltd.
Inventor： Seung Hwan PARK , Kang Hyun KIM , Hoi Sik MOON , Jae-Seob CHUNG
IPC: G09G3/20
Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel is configured to display an image based on input image data. The gate driver is configured to output gate signals to gate lines of the display panel. The data driver is configured to output data voltages to data lines of the display panel. The driving controller includes a first compensation lookup table and a second compensation lookup table which are configured to compensate the input image data. The driving controller is configured to select one of the first compensation lookup table and the second compensation lookup table based on a first color shift and a second color shift and to apply the selected one of the first compensation lookup table and the second compensation lookup table to the input image data.
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公开(公告)号：US20210102843A1
公开(公告)日：2021-04-08
申请号：US16701409
申请日：2019-12-03
Applicant: Samsung Display Co., Ltd.
Inventor： Juneyoung LEE , Hoi Sik MOON , Hyungwoo YIM , Jae-Seob CHUNG , Minyup CHAE
Abstract: A vision inspection apparatus includes an inspection controller which displays a grid pattern with a plurality of gray levels on a display panel, an imaging converter which drives a charge-coupled device with a predetermined or set exposure-time and converts the grid pattern displayed on the display panel into a grid pattern signal, a charge calculator which calculates a charge amount per unit time for each color of a reference gray level using a reference gray level signal, included in the grid pattern signal, and the set exposure-time, and an exposure-time calculator which calculates an optimum exposure-time for each color of the reference gray level based on a target charge amount of the reference gray level.
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5.发明申请公开(公告)号：US20200098303A1
公开(公告)日：2020-03-26
申请号：US16577757
申请日：2019-09-20
Applicant: Samsung Display Co., LTD.
Inventor： Mingyu KIM , Juneyoung LEE , Hyungwoo YIM , Hoi Sik MOON
IPC: G09G3/20
Abstract: In a method of generating correction data for a display device, an image is captured, a plurality of correction values are obtained at a plurality of sampling positions based on the captured image, whether a frequency criterion about a total number of overflow correction values is satisfied is determined, the overflow correction values being the correction values outside at least one reference range whether an adjacency criterion about a number of the overflow correction values at sampling positions adjacent to a sampling position of the each of the overflow correction values is satisfied is determined, a bit shift operation is selectively performed on the plurality of correction values according to whether the frequency and/or adjacency criterion is satisfied, and correction data representing the plurality of correction values on which the bit shift operation is performed, and bit shift information about the bit shift operation are stored in the display device.
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Patent Agency Ranking
公开(公告)号：US20210280111A1
公开(公告)日：2021-09-09
申请号：US17107723
申请日：2020-11-30
Applicant: Samsung Display Co., Ltd.
Inventor： Jae-Seob CHUNG , Hoi Sik MOON , Hyung Woo YIM , Kang Hyun KIM , Hak Mo CHOI
Abstract: In a method of generating correction data for each of a plurality of display devices, a characteristic distribution for initial display devices among the plurality of display devices may be obtained, center characteristic compensation data may be generated based on the characteristic distribution for the initial display devices, the center characteristic compensation data may be applied to subsequent display devices that are subsequent to the initial display devices among the plurality of display devices, mura correction data and image quality correction data may be generated by performing mura correction and image quality correction on each of the subsequent display devices to which the center characteristic compensation data are applied, and the center characteristic compensation data, the mura correction data and the image quality correction data may be written into each of the subsequent display devices.
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公开(公告)号：US20210272502A1
公开(公告)日：2021-09-02
申请号：US17093117
申请日：2020-11-09
Applicant: Samsung Display Co., Ltd.
Inventor： Min Gyu KIM , Hee Joon KIM , Si Hun JANG , Hoi Sik MOON
IPC: G09G3/20
Abstract: A display device according to some embodiments includes a display panel including a plurality of pixels, a timing controller for correcting an input image signal, and for transmitting the input image to the display panel, a memory for storing model correction data for correcting a gray value, the model correction data corresponding to respective models of a plurality of timing controllers, and for storing image quality correction data for correcting a gamma deviation of the display panel, and a correction controller for generating final correction data by using the model correction data and the image quality correction data, and for transmitting the final correction data to the timing controller.
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公开(公告)号：US20200271993A1
公开(公告)日：2020-08-27
申请号：US16689304
申请日：2019-11-20
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor： Nam Jae LIM , Hoi Sik MOON , Yoon Gu KIM , Jae Sung BAE , Seung Young CHOI , Tae Hyeong AN
IPC: G02F1/1335 , G02F1/1343
Abstract: A display device having a backlight which includes a first quantity of light source blocks that are individually driven at separate duty ratios. The display device includes pixels having a second quantity that is greater than the first quantity. The pixels are configured to determine a light transmission factor for light emitted from the light source blocks. A grayscale compensation unit is configured to calculate color shift amounts of the pixels based on the duty ratios of the light source blocks and compensate input grayscale values for the pixels based on the color shift amounts to correct color shift.
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公开(公告)号：US20200027424A1
公开(公告)日：2020-01-23
申请号：US16507576
申请日：2019-07-10
Applicant: Samsung Display Co., Ltd.
Inventor： Byoung Seok YOO , Hoi Sik MOON , Jeongwoon LEE
Abstract: A display device includes: a first memory storing mura correcting data respectively corresponding to a plurality of reference pixels, each of the plurality of reference pixels comprising (n×m) pixels, the mura correcting data configured to correct mura of a reference pixel (‘n’ and ‘m’ are natural numbers being equal to or more than 2); a first correction controller configured to generate mura correcting data of a pixel using the mura correcting data of the reference pixel stored in the first memory; a second memory storing spot correcting data respectively corresponding to a plurality of spot-muras; a second correction controller configured to output the spot correcting data from the second memory based on a position data of the spot-mura; and an operation part configured to correct pixel data of the pixel using the mura correcting data and the spot correcting data of the pixel.
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公开(公告)号：US20200013346A1
公开(公告)日：2020-01-09
申请号：US16505464
申请日：2019-07-08
Applicant: Samsung Display Co., Ltd.
Inventor： Seokha HONG , Jae Sung BAE , Jae Hoon LEE , Jai-Hyun KOH , Hoi Sik MOON , Namjae LIM
Abstract: A display apparatus includes: a local dimmer configured to generate a dimming signal representing a degree of dimming of a light source block based on input image data; a luminance compensator configured to compensate luminance of the input image data based on the input image data and the dimming signal; a display panel configured to display an image based on the compensated input image data; and a light source configured to provide light to the display panel based on the dimming signal, wherein the luminance compensator is configured to compensate the luminance of the input image data using a gain varied according to a grayscale value of the input image data.
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