公开(公告)号：US11875732B2

公开(公告)日：2024-01-16

申请号：US17386700

申请日：2021-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Sook Park ,  Ki Hyun Pyun

IPC: G09G3/22

CPC classification number: G09G3/22 ,  G09G2300/0439 ,  G09G2330/022

Abstract: A screen saver controller includes a load calculator for generating load data of each of a plurality of panel blocks included in a display panel based on input image data, a life calculator for generating life data of each of the panel blocks based on a deterioration stress value accumulated in the display panel, a first logic circuit for receiving the load data and the life data, and generating operation data based on the load data and the life data and a second logic circuit for receiving the input image data and the operation data, and generating screen saver data based on the input image data and the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a screen saver mode for performing a screen saver operation.

公开(公告)号：US11854454B2

公开(公告)日：2023-12-26

申请号：US16942200

申请日：2020-07-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Hee Sook Park

IPC: G09G3/20 ,  G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/2007 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2310/027 ,  G09G2330/023 ,  G09G2330/028

Abstract: A display device includes blocks each including two or more pixels commonly coupled to a first power line, and a first power voltage controller for determining a margin value of a first power voltage supplied to the first power line, based on load values of the blocks. The first power voltage controller determines the load values based on grayscale values of the pixels included in each of the blocks. The magnitude of the first power voltage is determined to become smaller as the margin value becomes larger. The margin value includes a first margin value. The first power voltage controller determines the first margin value according to a degree of distribution of load values of first blocks arranged in a first direction among the blocks.

公开(公告)号：US11837148B2

公开(公告)日：2023-12-05

申请号：US17877594

申请日：2022-07-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Won Jin Seo ,  Eun Jin Choi

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0452 ,  G09G2310/027 ,  G09G2330/021 ,  G09G2330/028

Abstract: A display device includes a plurality of pixels grouped into blocks divided into block rows extending in a first direction and arranged in a second direction, wherein each block includes two or more pixels connected to a first power source line, and each pixel is assigned with a grayscale value in a range of grayscale values that is divided into a plurality of grayscale sections; and a first power source voltage adjuster selecting a reference block row, and determining a magnitude of a first power source voltage supplied to the first power source line based on a number of blocks in the reference block row having a grayscale section that is same as a maximum grayscale section of the reference block row. The maximum grayscale section corresponds to a grayscale section that includes a largest grayscale value having a grayscale value ratio greater than a minimum ratio.

公开(公告)号：US11756489B2

公开(公告)日：2023-09-12

申请号：US17566489

申请日：2021-12-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Hyun Pyun ,  Jung Eon An

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2360/147

Abstract: A display device includes a sensor, a timing controller, and a data driver. The sensor senses characteristic values of an element included in a pixel of the display device using input initialization and data voltages in a sensing period of one frame period. The timing controller calculates compensation data voltage using the characteristic values, and calculate adjusted initialization and data voltages in the sensing period by using the compensation data voltage. The data driver output the adjusted initialization and data voltages to the pixel during the sensing period in response to a control signal output from the timing controller.

公开(公告)号：US11735141B2

公开(公告)日：2023-08-22

申请号：US17745160

申请日：2022-05-16

Applicant: Samsung Display Co., Ltd.

Inventor： Eun Jin Choi ,  Won Jin Seo ,  Ki Hyun Pyun

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/0285 ,  G09G2320/0626 ,  G09G2320/0686 ,  G09G2330/023

Abstract: Provided herein may be a display device. The display device may include a display panel including a plurality of unit blocks disposed in a display area, the plurality of unit blocks including a first area displaying a logo or a banner, a second area having largest load value and a third area disposed between the first area and the second area, a display panel driver configured to generate data voltages based on input image data, and a zonal compensator configured to receive the input image data, to calculate load values of the input image data for the plurality of unit blocks, respectively, and to control luminance of each of the first area and the third area based on a location difference between the first area and the second area and a load value difference between the first area and the second area.

公开(公告)号：US11622447B2

公开(公告)日：2023-04-04

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：US11538384B2

公开(公告)日：2022-12-27

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 ,  G09G3/36 ,  G09G5/00 ,  G09G3/3275

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：US11368159B2

公开(公告)日：2022-06-21

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：US20220122517A1

公开(公告)日：2022-04-21

申请号：US17386700

申请日：2021-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hee Sook Park ,  Ki Hyun Pyun

IPC: G09G3/22

Abstract: A screen saver controller includes a load calculator for generating load data of each of a plurality of panel blocks included in a display panel based on input image data, a life calculator for generating life data of each of the panel blocks based on a deterioration stress value accumulated in the display panel, a first logic circuit for receiving the load data and the life data, and generating operation data based on the load data and the life data and a second logic circuit for receiving the input image data and the operation data, and generating screen saver data based on the input image data and the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a screen saver mode for performing a screen saver operation.

公开(公告)号：US11189226B2

公开(公告)日：2021-11-30

申请号：US17036765

申请日：2020-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Hyun Pyun ,  Hee Sook Park

IPC: G09G3/3233

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.