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    Driving controller, display device having the same, and driving method of display device
    1.
    发明授权
    Driving controller, display device having the same, and driving method of display device 有权

    公开(公告)号：US11823607B2

    公开(公告)日：2023-11-21

    申请号：US17740290

    申请日：2022-05-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyojin Lee ,  Sehyuk Park ,  Eunho Lee ,  Jinyoung Roh ,  Hui Nam ,  Bong-Hyun You

    IPC: G09G3/3225 ,  G09G3/20

    CPC classification number: G09G3/2007 ,  G09G3/3225 ,  G09G2320/0247 ,  G09G2330/021

    Abstract: A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.

    Display system
    2.
    发明授权
    Display system 有权

    公开(公告)号：US09697794B2

    公开(公告)日：2017-07-04

    申请号：US14688653

    申请日：2015-04-16

    Applicant: Samsung Display Co., Ltd.

    Inventor： Eunho Lee ,  Hyundae Lee

    IPC: G06F13/14 ,  G09G5/00

    CPC classification number: G09G5/006 ,  G09G5/008 ,  G09G2330/021 ,  G09G2350/00

    Abstract: A display system includes a plurality of transmitting lines configured to transmit a plurality of image signals and a display device configured to display an image based on the image signals applied thereto through the transmitting lines. At least one transmitting line of the transmitting lines is further configured to transmit the image signals at a bandwidth that is adjusted according to the information of the image signals.

    Display device and driving method of the same
    4.
    发明授权
    Display device and driving method of the same 有权

    公开(公告)号：US11455958B2

    公开(公告)日：2022-09-27

    申请号：US17347468

    申请日：2021-06-14

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Hyojin Lee ,  Hui Nam ,  Jinyoung Roh ,  Bong Hyun You ,  Eunho Lee

    IPC: G09G3/3275

    Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.

    DISPLAY DEVICE
    5.
    发明申请
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20200219450A1

    公开(公告)日：2020-07-09

    申请号：US16737363

    申请日：2020-01-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyojin Lee ,  Sehyuk Park ,  Jinyoung Roh ,  Geunjeong Park ,  Eunho Lee ,  Hui Nam ,  Bonghyun You

    IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

    Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

    Display device
    6.
    发明授权
    Display device 有权

    公开(公告)号：US11545092B2

    公开(公告)日：2023-01-03

    申请号：US17515742

    申请日：2021-11-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyojin Lee ,  Sehyuk Park ,  Jinyoung Roh ,  Geunjeong Park ,  Eunho Lee ,  Hui Nam ,  Bonghyun You

    IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/12

    Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a first power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

    Driving controller, display device having the same, and driving method of display device
    7.
    发明授权
    Driving controller, display device having the same, and driving method of display device 有权

    公开(公告)号：US11328649B2

    公开(公告)日：2022-05-10

    申请号：US16717907

    申请日：2019-12-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyojin Lee ,  Sehyuk Park ,  Eunho Lee ,  Jinyoung Roh ,  Hui Nam ,  Bong-Hyun You

    IPC: G09G3/20 ,  G09G3/3225

    Abstract: A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.

    Display device and driving method of the same
    8.
    发明授权
    Display device and driving method of the same 有权

    公开(公告)号：US11037507B2

    公开(公告)日：2021-06-15

    申请号：US16721564

    申请日：2019-12-19

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Hyojin Lee ,  Hui Nam ,  Jinyoung Roh ,  Bong Hyun You ,  Eunho Lee

    IPC: G09G3/3275

    Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.

    Display device and method of compensating luminance of the same
    9.
    发明授权
    Display device and method of compensating luminance of the same 有权

    公开(公告)号：US10388254B2

    公开(公告)日：2019-08-20

    申请号：US15820684

    申请日：2017-11-22

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Eunho Lee ,  Hyundae Lee ,  Hyunseuk Yoo ,  Hyungjin Kim

    IPC: G09G3/00 ,  G09G5/10 ,  G09G5/02

    Abstract: A display device and a method of compensating a luminance of the display device enhance display quality and reducing storage capacity of a memory, the display device including: a display panel including a plurality of pixels arranged in a matrix form; a storage unit storing a gray level compensation value of a reference pixel defined by at least one pixel; a compensation circuit receiving a gray level datum and generating a compensated gray level datum by applying the gray level compensation value; and a data driving circuit receiving the compensated gray level datum to generate a data voltage and outputting the data voltage to the display panel. The display panel includes a first compensation area and a second compensation area. The reference pixel in the first compensation area is defined by one pixel and the reference pixel in the second compensation area is defined by m×n pixels, m and n being natural numbers greater than 1.

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