公开(公告)号：US20220295636A1

公开(公告)日：2022-09-15

申请号：US17827283

申请日：2022-05-27

Applicant: Samsung Display Co., LTD.

Inventor： Ki Hyun PYUN ,  Myoung Seop SONG

IPC: H05K1/14 ,  G09G3/32

Abstract: A display device includes: a display panel including a plurality of pixels; a first flexible printed circuit board attached to the display panel and electrically connected thereto; a first printed circuit board attached to the first flexible printed circuit board and electrically connected thereto; a data driver which applies a data voltage to the plurality of pixels, receives a voltage flowing to the plurality of pixels and generates mobility sensing information based on the voltage flowing to the plurality of pixels; and a timing controller which detects a first misalignment between the first printed circuit board and the first flexible printed circuit board, and a second misalignment between the display panel and the first flexible printed circuit board, based on the mobility sensing information.

公开(公告)号：US20220262307A1

公开(公告)日：2022-08-18

申请号：US17566407

申请日：2021-12-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Hee Sook PARK

IPC: G09G3/3233 ,  G09G3/00 ,  H01L51/50

Abstract: A display device includes a display panel including a plurality of pixels and partitioned into a plurality of blocks including at least one of the pixels, a timing controller configured to receive input image data from an outside source and generate scaled image data by scaling the input image data using a scale factor, a data driver configured to generate a data signal corresponding to the scaled image data and supply the data signal to the pixels, and a logic circuit configured to generate the scale factor based on the input image data, first weight data, and second weight data different from the first weight data.

公开(公告)号：US20220165203A1

公开(公告)日：2022-05-26

申请号：US17666391

申请日：2022-02-07

Applicant: Samsung Display Co., Ltd.

Inventor： Hee Sook PARK ,  Ki Hyun PYUN

IPC: G09G3/20

Abstract: A display device includes: a gain provider configured to set a time point elapsed by a set period from a time point at which a first region of an input image is detected as a still region, as a set time, and to gradually decrease a gain value from the set time; and a grayscale converter configured to generate an output image by applying the gain value to the first region and a second region including a peripheral region of the first region among the input image, wherein the gain provider is configured to set the set period differently according to size of grayscale values in the first region.

公开(公告)号：US20220084471A1

公开(公告)日：2022-03-17

申请号：US17536181

申请日：2021-11-29

Applicant: SAMSUNG DISPLAY CO., LTD.

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

IPC: G09G3/3275

Abstract: Provided are a display device and a driving method thereof. The display device includes: a display panel for displaying an image, based on data signals supplied from data lines; a load controller for determining a scale factor for controlling a target luminance of the image displayed in the display panel, based on a load of first image data input from the outside; and a data driver for outputting data signals to the data lines, corresponding to the first image data corrected using the scale factor. The data driver includes a plurality of data driver chips coupled to at least one data line among the data lines. The load controller determines the scale factor, based on at least one of a total load of the first image data and local loads with respect to the respective data driver chips.

公开(公告)号：US20220084469A1

公开(公告)日：2022-03-17

申请号：US17318289

申请日：2021-05-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun PYUN ,  Jang Hoon KWAK ,  Won Jin SEO

IPC: G09G3/3266

Abstract: A display device includes a display panel including scan lines, first signal lines connected to the scan lines in a first pixel block, second signal lines connected to the scan lines in a second pixel block, third signal lines connected to the scan lines in a third pixel block; a first scan driver supplying a first output signal to the first signal lines based on a first sub-clock signal; a second scan driver supplying a second output signal to the second signal lines based on a second sub-clock signal; a third scan driver supplying a third output signal to the third signal lines based on and a third sub-clock signal; and a timing controller. Changes in pulse widths of the first to third output signals are different in one frame period.

公开(公告)号：US20210359688A1

公开(公告)日：2021-11-18

申请号：US17185813

申请日：2021-02-25

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Hee SooK PARK

IPC: H03L7/08 ,  G09G5/00

Abstract: A clock data recovery circuit includes a phase-locked loop circuit generating a multi-phase clock signal based on input data, the phase-locked loop circuit including a multi-rate phase detector being operable at an initial rate among a plurality of rates in an initial period; a lock detector generating a lock-enable signal by detecting a lock state of the phase-locked loop circuit; a dead zone calibration circuit determining an operational rate corresponding to a data rate of the input data among the plurality of rates in response to the lock-enable signal; and a digital block controlling the multi-rate phase detector to operate at the operational rate, and generating a calibration-enable signal. The dead zone calibration circuit determines whether the multi-phase clock signal is locked within a dead zone in response to the calibration-enable signal, and changes a phase of the multi-phase clock signal based on the multi-phase clock signal.

公开(公告)号：US20210327338A1

公开(公告)日：2021-10-21

申请号：US17120495

申请日：2020-12-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hee Sook PARK ,  Ki Hyun PYUN

IPC: G09G3/20

Abstract: A display device includes: a gain provider configured to set a time point elapsed by a set period from a time point at which a first region of an input image is detected as a still region, as a set time, and to gradually decrease a gain value from the set time; and a grayscale converter configured to generate an output image by applying the gain value to the first region and a second region including a peripheral region of the first region among the input image, wherein the gain provider is configured to set the set period differently according to size of grayscale values in the first region.

公开(公告)号：US20210281263A1

公开(公告)日：2021-09-09

申请号：US17087476

申请日：2020-11-02

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Won Jin SEO ,  Eun Jin CHOI

IPC: H03K19/0175 ,  H04B1/04 ,  G09G3/3233

Abstract: An interface system including: a receiver; a transmitter configured to transmit a signal including a common mode voltage to the receiver through transmission lines; and a plurality of bias circuits configured to adjust the common mode voltage of the signal, wherein the bias circuits are configured to receive a bias control bit to generate a biased common mode voltage.

公开(公告)号：US20210150971A1

公开(公告)日：2021-05-20

申请号：US16920795

申请日：2020-07-06

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Eun Jin CHOI

IPC: G09G3/20

Abstract: A display device and a method for driving the same are described. The display device includes a plurality of pixels, a driving characteristic compensator for sensing driving characteristics of the pixels, generating first power source voltage information according to a change in the driving characteristics, and updating an RGB gamma look up table, a memory for storing the first power source voltage information and the RGB gamma look-up table, a power source manager for generating a first power source voltage based on the first power source voltage information, and a gamma controller for generating reference gamma voltages by dividing the first power source voltage supplied from the power source manager based on the RGB gamma look-up table. Therefore, power consumption of the display device may be reduced.

公开(公告)号：US20210012705A1

公开(公告)日：2021-01-14

申请号：US16905237

申请日：2020-06-18

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun PYUN ,  Su Min YANG

IPC: G09G3/32

Abstract: A display device includes: a display panel including a plurality of pixels; a power supply configured to generate a gamma power voltage based on a power control signal; a gamma voltage generator configured to generate gamma voltages based on the gamma power voltage and a gamma control signal; a data driver configured to generate a data signal corresponding to a grayscale value included in image data using the gamma voltages and to provide the data signal to the pixels; and a power controller configured to adjust the power control signal and the gamma control signal based on a maximum voltage level of the data signal, wherein a voltage level of the gamma power voltage is proportional to the maximum voltage level of the data signal.