公开(公告)号：US20220157224A1

公开(公告)日：2022-05-19

申请号：US17410481

申请日：2021-08-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Mi LEE ,  Eun Jin CHOI

IPC: G09G3/32 ,  G09G3/20

Abstract: A display device includes pixels divided into blocks, a timing controller to generate image data based on input image data, a data driver to generate a data signal corresponding to the image data and supply the data signal to the pixels, and power supply to supply a power voltage to the pixels. In addition, the display device includes a power controller to calculate a first load value corresponding to the pixels, second load values corresponding to each of the blocks, and first peak grayscale values corresponding to each of the blocks based on the input image data. The power controller generates a power control signal to change a voltage level of the power voltage based on the first load value, the second load values, and the first peak grayscale values.

公开(公告)号：US20220148479A1

公开(公告)日：2022-05-12

申请号：US17352465

申请日：2021-06-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Mi LEE ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device including: a display area including pixels connected to data lines and scan lines, the display area including a plurality of signal output lines connected to each of the scan lines through a contact; a data driver including a first data driving circuit at a side of the display area; a scan driver disposed at the side of the display area; and a timing controller, wherein the first data driving circuit includes: output buffers which respectively output data signals to first to k-th data lines (k is an integer greater than 2) of the data lines; and an output delay controller which transmits the data signals to the output buffers through first to k-th transmission lines, and controls delay times of the data signals output to the first to k-th transmission lines based on position information of a pixel row to which the data signals are supplied.

公开(公告)号：US20220076630A1

公开(公告)日：2022-03-10

申请号：US17403856

申请日：2021-08-16

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/3258 ,  G09G3/00 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display device may include a display unit, a signal controller, and a sensing unit. The display unit may include pixels. The signal controller may select a first pixel set from the pixel according to ages of the pixels determined based on an image signal. The sensing unit may be electrically connected to each of the display unit and the signal controller and may sense deterioration information of one or more pixels included in the first pixel set for a vertical blank period in which the display unit displays no image.

公开(公告)号：US20210319739A1

公开(公告)日：2021-10-14

申请号：US17088056

申请日：2020-11-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/20

Abstract: A display device includes a display panel having a plurality of pixels, a controller configured to determine a peak luminance based on a target luminance and a black duty ratio that is a ratio of a black insertion period to a sum of an image display period and the black insertion period, to determine gray-luminance information representing a plurality of luminances respectively corresponding to a plurality of gray levels based on the peak luminance and a target gamma value, and to generate gray-voltage information representing a plurality of voltage levels respectively corresponding to the plurality of gray levels based on a target white color coordinate and the gray-luminance information, a gray voltage generator configured to generate a plurality of gray voltages having the plurality of voltage levels based on the gray-voltage information, and a data driver configured to provide the plurality of gray voltages corresponding to output image data as data voltages to the plurality of pixels in the image display period, and to provide a black data voltage to the plurality of pixels in the black insertion period.

公开(公告)号：US20210264877A1

公开(公告)日：2021-08-26

申请号：US17036765

申请日：2020-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G5/10 ,  G09G3/20

Abstract: The present disclosure provides a display device. The display device includes a gain provider for gradually decreasing a gain value from a first time when a first period elapses from a time at which an enable signal is generated, and a plurality of pixels for receiving data voltages determined by the gain value and the input grayscale values. The gain provider determines a length of the first period according to a first load value based on the input grayscale values at the time at which the enable signal is generated.

公开(公告)号：US20210150966A1

公开(公告)日：2021-05-20

申请号：US16986157

申请日：2020-08-05

Applicant: Samsung Display Co., Ltd.

Inventor： Su Min YANG ,  Wook LEE ,  Hye Ji KIM ,  Ki Hyun PYUN

IPC: G09G3/20 ,  G09G3/32

Abstract: A display device includes first pixels partitioned into a plurality of blocks, each of the plurality of blocks being categorized as a first block or a second block, a sensor configured to generate first sensing data for at least two of the first pixels in each of the plurality of blocks during a first period, and a sensing controller configured to generate interpolated data for the first pixels that are not sensed by the sensor by interpolating the first sensing data, for the first block, and configured to forgo interpolation of the first sensing data, for the second block. The sensor generates second sensing data for the first pixels that are not sensed by the sensor, for the second block, during a second period after the first period.

公开(公告)号：US20210091923A1

公开(公告)日：2021-03-25

申请号：US16914094

申请日：2020-06-26

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Min Young PARK ,  Jong Min SHIM

IPC: H04L7/033 ,  G09G3/32 ,  H04L7/04 ,  H03L7/08 ,  H03L7/089 ,  H03L7/099 ,  H03L7/095

Abstract: A clock data recovery circuit includes the following elements: a phase detector for outputting a phase adjustment signal by comparing a clock signal of a first node and an input signal; a charge pump for adjusting a charge amount of a second node according to the phase adjustment signal; a first switch including one end coupled to the second node and including another end coupled to a third node; a second switch including one end which receives a bias voltage and including another end coupled to the third node; a capacitor including a first electrode coupled to the third node; third switches; and voltage control oscillators including control terminals coupled to the third node and including output terminals coupled to the first node through the third switches.

公开(公告)号：US20210065634A1

公开(公告)日：2021-03-04

申请号：US16889683

申请日：2020-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Jang Hoon KWAK ,  Min Young PARK

IPC: G09G3/3283 ,  H03L7/081 ,  H03L7/08

Abstract: A display device may extract an edge of a data signal based on the data signal and phase conversion clock signals, extract a phase of the data signal based on the edge, and generate a clock phase calibration signal based on the phase of the data signal. The display device may calibrate a phase of a clock signal using the clock phase calibration signal that has a phase corresponding to the phase of the clock signal, thereby improving transmission characteristic of the signal.

公开(公告)号：US20200312260A1

公开(公告)日：2020-10-01

申请号：US16795791

申请日：2020-02-20

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hoe Mi KIM ,  Ki Hyun PYUN

IPC: G09G3/36

Abstract: A source driver includes an equalizer which outputs compensated image data by adjusting a frequency gain of image data, based on a selected option value among a plurality of option values. A recovery recovers a clock signal corresponding to the compensated image data. A calibrator sequentially provides the plurality of option values to the equalizer, and selects the selected option value among the plurality of option values, based on recovery rates of the clock signal, which respectively correspond to the plurality of option values.

公开(公告)号：US20200265788A1

公开(公告)日：2020-08-20

申请号：US16731674

申请日：2019-12-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyun Ho KIM ,  Sung In KANG ,  Ki Hyun PYUN

IPC: G09G3/3291 ,  G09G3/20

Abstract: A display device includes: a display panel including a plurality of pixels; a first correction circuit configured to perform, using a gamma correction value, a gamma correction for first image data; a second correction circuit configured to receive the gamma-corrected first image, and to generate second image data by performing gray-scale compensation for the gamma-corrected first image data; and a data driver configured to provide a data signal corresponding to the second image data to the plurality of pixels, wherein the second correction circuit performs the gray-scale compensation based on the gamma correction value and a threshold value measured for each of the plurality of pixels.