公开(公告)号：US11670232B2

公开(公告)日：2023-06-06

申请号：US17579429

申请日：2022-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Siduk Sung

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A display device includes a switch, an initialization line, a capacitor, a data line, a first transistor, a second transistor, a driving transistor, and a diode. The capacitor includes a first electrode and a second electrode. To the first electrode through at least the initialization line, the switch may output a first voltage in a first period of a horizontal time and may output a second voltage unequal to the first voltage in a second period of the horizontal time. The first transistor may connect the data line to the first electrode in response to a scan signal. The driving transistor may provide a driving current based on a voltage of the first electrode. The second transistor may connect the initialization line to the second electrode in response to an initialization signal. The diode may emit light based on the driving current.

公开(公告)号：US11640783B2

公开(公告)日：2023-05-02

申请号：US17501998

申请日：2021-10-14

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Wonjin Seo ,  Eunjin Choi

IPC: G09G3/20

Abstract: A driving controller set includes a net power control setter, a data clamper, a data line, and a data driver. The net power control setter may determine a first scale factor for adjusting a grayscale value of (N+1)-th frame data based on a load of N-th frame data and a net power control reference value. N is an integer equal to or greater than two. The data clamper may determine a second scale factor for adjusting a grayscale value of the N-th frame data based on a load of (N−1)-th frame data and the N-th frame data. A data signal may be generated using the first scale factor and/or the second scale factor. The data line may include a conductive material. The data driver may convert the data signal into a data voltage and may output the data voltage to the data line.

公开(公告)号：US11557268B2

公开(公告)日：2023-01-17

申请号：US17457300

申请日：2021-12-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kihyun Pyun ,  Eunjin Choi

IPC: G09G5/10

Abstract: A screen saver controller includes a temperature calculator, a temperature comparator, an operator, and a screen saver data generator. The temperature calculator calculates temperature data of a display panel based on input image data. The temperature comparator receives the temperature data and a target temperature and compares a temperature of the display panel with the target temperature to generate temperature change data. The operator receives the temperature data and the temperature change data and generates operation data based on the temperature data and the temperature change data. The screen saver data generator receives the operation data and generates screen saver data based on the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a first mode.

公开(公告)号：US11455932B2

公开(公告)日：2022-09-27

申请号：US17235161

申请日：2021-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/20

Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary grayscale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

公开(公告)号：US10950197B2

公开(公告)日：2021-03-16

申请号：US16569562

申请日：2019-09-12

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Keunoh Kang ,  Moonshik Kang ,  Gwangsoo Ahn ,  Dae-sik Lee

IPC: G09G5/00 ,  G06F1/08

Abstract: A data driver of a display device includes an equalizer and an equalizer controller. The equalizer controller calculates a lock time during a training enable signal is in an active state while sequentially changing a set signal applied to the equalizer to one option code selected from among a plurality of option codes and provides an option code corresponding to a set lock time among the option codes to the equalizer as the set signal.

公开(公告)号：US10854161B2

公开(公告)日：2020-12-01

申请号：US16186944

申请日：2018-11-12

Applicant: Samsung Display Co., Ltd.

Inventor： Yunmi Kim ,  Kihyun Pyun ,  Sung-In Kang

IPC: G09G3/36 ,  G09G5/14 ,  G09G3/20

Abstract: A display device includes a display panel divided into a first display area and a second display area in a first direction, a first data driver which provides a first data signal to the first display area through data lines arranged in a second direction crossing the first direction, a second data driver which provides a second data signal to the second display area through the data lines arranged in the second direction, a gate driver which provides a gate signal to the display panel through gate lines arranged in the first direction, a timing controller which generates control signals that control the first data driver, the second data driver, and the gate driver, and a defect detector which controls to display a defect detecting image and a reference image on the first display area and the second display area alternately based on an enable signal.

公开(公告)号：US10650773B2

公开(公告)日：2020-05-12

申请号：US16201325

申请日：2018-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Yu-chol Kim ,  Minyoung Park ,  Min-soo Choi

IPC: G09G3/36 ,  H02M3/157 ,  H02M3/158 ,  H03L7/099 ,  H03L7/089 ,  G02F1/133 ,  G02F1/1362 ,  H02M1/00

Abstract: A display device includes a display panel, and a power management circuit including a switching regulator for supplying a power in a discontinuous conduction mode or in a continuous conduction mode, and a sensing circuit for sensing whether the switching regulator is operated in the discontinuous conduction mode, the switching regulator including a comparator for monitoring the supplied power, and an RS latch for receiving an output signal from the comparator, and the sensing circuit including a phase lock loop circuit for generating a first clock signal, a phase delay circuit for generating a second clock signal having a phase delayed from the first, and a determination circuit for outputting a first value when a pulse width of the output signal from the RS latch is small, and for outputting a second value when the pulse width of the output signal from the RS latch is not small.

公开(公告)号：US09330586B2

公开(公告)日：2016-05-03

申请号：US13686284

申请日：2012-11-27

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Sung-In Kang ,  Jun-Ho Hwang ,  Seung-Woon Shin

IPC: G09G3/36 ,  G09G1/00

CPC classification number: G09G1/005 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3677 ,  G09G2310/0289

Abstract: A display apparatus including a plurality of pixels arranged in association with a plurality of gate lines and a plurality of data lines crossing the gate lines, a data driver configured to drive the data lines, a gate driving unit configured to drive the gate lines in synchronization with a gate control signal, and a timing controller configured to control the data driver and the gate driving unit in response to an image signal and a control signal from an exterior. The timing controller outputs the gate control signal including a plurality of pulses respectively corresponding to the gate lines and an enable time of each pulse of the gate control signal is set according to a position of a corresponding gate line of the gate lines.

Abstract translation: 一种显示装置，包括与多条栅极线相连接的多个像素和与栅极线交叉的多条数据线，被配置为驱动数据线的数据驱动器，配置成同步驱动栅极线的栅极驱动单元 以及定时控制器，被配置为响应于来自外部的图像信号和控制信号来控制数据驱动器和门驱动单元。 定时控制器输出包括分别对应于栅极线的多个脉冲的栅极控制信号，并且根据栅极线的对应栅极线的位置来设置栅极控制信号的每个脉冲的使能时间。

公开(公告)号：US12243456B2

公开(公告)日：2025-03-04

申请号：US18059721

申请日：2022-11-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kihyun Pyun ,  Siduk Sung

IPC: G09G3/32 ,  G09G3/00 ,  G09G3/3283

Abstract: An organic light-emitting diode (OLED) display device includes a display panel including a plurality of pixels, the plurality of pixels being grouped into a plurality of pixel blocks, a nonvolatile memory configured to store previous accumulated block degradation information for the plurality of pixel blocks up to a previous driving period, a controller configured to calculate current block degradation information for the plurality of pixel blocks in a current driving period, to calculate current accumulated block degradation information for the plurality of pixel blocks up to the current driving period by adding the current block degradation information to the previous accumulated block degradation information in response to a power control signal indicating a power-off, and to determine whether a sensing operation for each of the plurality of pixel blocks is to be performed by comparing the current accumulated block degradation information for each of the plurality of pixel blocks with a sensing reference degradation amount, and a sensing circuit configured to selectively perform the sensing operation for each of the plurality of pixel blocks.

公开(公告)号：US12217677B2

公开(公告)日：2025-02-04

申请号：US18230668

申请日：2023-08-07

Applicant: Samsung Display Co., Ltd.

Inventor： Eunjin Choi ,  Geonhwi Park ,  Jang-Mi Lee ,  Kihyun Pyun

IPC: G09G3/3233 ,  G09G3/32

Abstract: A display device includes a display panel displaying an image based on output image data, a voltage curve controller generating a converted peak luminance, a converted full white luminance, a converted peak grayscale, and a converted full white grayscale from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generating converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, and a driving voltage controller generating a driving voltage from the converted voltage curves based on a load and a maximum grayscale value of input image data. A voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale.