公开(公告)号：US09070318B2

公开(公告)日：2015-06-30

申请号：US13756945

申请日：2013-02-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun-Ho Hwang ,  Jang-Hoon Kwak ,  Seung-Woon Shin ,  Yong-jin Shin ,  Jang-Mi Lee ,  Kihyun Pyun

IPC: G09G5/10 ,  G06F3/041 ,  G09G5/12 ,  G09G3/34

CPC classification number: G09G5/12 ,  G09G3/342 ,  G09G2310/0281 ,  G09G2310/067 ,  G09G2320/0233

Abstract: A display device includes a display panel, a timing controller, a data driver, a gate driver and a backlight unit. The gate driver sequentially outputs gate signals to gate lines. The backlight unit performs an on-operation during a high section of a backlight control signal and an off-operation during a low section of the backlight control signal. The gate signals includes first gate signals that are output during the high section of the backlight control signal and have a first pulse width and second gate signals that are output during the low section of the backlight control signal and have a second pulse width greater than the first pulse width.

Abstract translation: 显示装置包括显示面板，定时控制器，数据驱动器，门驱动器和背光单元。 栅极驱动器顺序地将栅极信号输出到栅极线。 背光单元在背光控制信号的高部分和背光控制信号的低部分期间的关闭操作期间执行开启操作。 栅极信号包括在背光控制信号的高部分期间输出的第一栅极信号，并且具有在背光控制信号的低部分期间输出的第一脉冲宽度和第二栅极信号，并且具有大于 第一脉冲宽度。

公开(公告)号：US20140085354A1

公开(公告)日：2014-03-27

申请号：US13756945

申请日：2013-02-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun-Ho Hwang ,  Jang-Hoon Kwak ,  Seung-Woon Shin ,  Yong-jin Shin ,  Jang-Mi Lee ,  Kihyun Pyun

IPC: G09G5/12

CPC classification number: G09G5/12 ,  G09G3/342 ,  G09G2310/0281 ,  G09G2310/067 ,  G09G2320/0233

Abstract: A display device includes a display panel, a timing controller, a data driver, a gate driver and a backlight unit. The gate driver sequentially outputs gate signals to gate lines. The backlight unit performs an on-operation during a high section of a backlight control signal and an off-operation during a low section of the backlight control signal. The gate signals includes first gate signals that are output during the high section of the backlight control signal and have a first pulse width and second gate signals that are output during the low section of the backlight control signal and have a second pulse width greater than the first pulse width.

Abstract translation: 显示装置包括显示面板，定时控制器，数据驱动器，门驱动器和背光单元。 栅极驱动器顺序地将栅极信号输出到栅极线。 背光单元在背光控制信号的高部分和背光控制信号的低部分期间的关闭操作期间执行开启操作。 栅极信号包括在背光控制信号的高部分期间输出的第一栅极信号，并且具有在背光控制信号的低部分期间输出的第一脉冲宽度和第二栅极信号，并且具有大于 第一脉冲宽度。

公开(公告)号：US12230212B2

公开(公告)日：2025-02-18

申请号：US18427919

申请日：2024-01-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kihyun Pyun ,  Sung-Mo Yang

IPC: G09G3/3258

Abstract: Disclosed is a display device which includes a display panel including a plurality of pixels, a voltage generator providing a driving voltage to the plurality of pixels, and a driving controller. The driving controller includes an overcurrent protecting circuit. The overcurrent protecting circuit includes a first logic circuit comparing a limit current with a sensing current to generate a first comparison result, a second logic circuit comparing a load with a limit load to generate a second comparison result and comparing the driving voltage with a limit voltage to generate a third comparison result. When the first comparison result indicates the sensing current is greater than or equal to the limit current, the second comparison result indicates the load is greater than the limit load and the third comparison result indicates the driving voltage is greater than the limit voltage, a driving voltage controller maintains the driving voltage.

公开(公告)号：US12039930B2

公开(公告)日：2024-07-16

申请号：US18104468

申请日：2023-02-01

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Min-Soo Choi

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2096 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/045 ,  G09G2330/028

Abstract: A display device including: a display panel; a current compensation circuit executing a current compensation operation in which a load is calculated based on input image data, and output compensation image data is generated by compensating for the input image data based on the load; a data driver converting the compensation image data into a data voltage based on a gamma reference voltage and a data driving voltage, and outputting the data voltage; a current sensing circuit sensing a driving current of the display panel and comparing the driving current with a preset reference current to output a protection signal; a voltage generator generating a driving voltage, the gamma reference voltage, and the data driving voltage; and a voltage control circuit generating a first voltage control signal to control a first target compensation value of the gamma reference voltage or the data driving voltage in response to the protection signal.

公开(公告)号：US11955069B2

公开(公告)日：2024-04-09

申请号：US18096795

申请日：2023-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Jungeon An ,  Kihyun Pyun

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes a first gain provider which controls a first gain value during a first display period in which a still image is displayed, a second gain provider which controls a second gain value during a second display period in which a moving image including a still area is displayed, and a grayscale converter which applies the first gain value or the second gain value to an input image and generates an output image. The first gain provider linearly or exponentially increases the first gain value to a maximum gain value based on a load of the still image from a first time point when the second display period changes to the first display period to a second time point at which the first gain value starts to decrease from the maximum gain value.

公开(公告)号：US11942060B2

公开(公告)日：2024-03-26

申请号：US17201837

申请日：2021-03-15

Applicant: Samsung Display Co., Ltd.

Inventor： Eunjin Choi ,  Wonjin Seo ,  Kihyun Pyun

IPC: G09G5/10 ,  G09G3/3291

CPC classification number: G09G5/10 ,  G09G3/3291 ,  G09G2310/0243 ,  G09G2320/0257 ,  G09G2330/028

Abstract: A display apparatus includes: a display panel including: a gate line; a data line; and a pixel electrically connected to the gate line and the data line, and to display a normal image and a compensation image; a gate driver to output a gate signal to the gate line; a data driver to output a data voltage to the data line; and a power voltage generator to vary a level of a gate power voltage based on a compensation duty ratio corresponding to a ratio between a display duration of the normal image and a display duration of the compensation image.

公开(公告)号：US11929014B2

公开(公告)日：2024-03-12

申请号：US17869218

申请日：2022-07-20

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Sung-Mo Yang ,  Seungho Park ,  Dae-Sik Lee

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0828 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes a display panel which displays an image based on input image data, a driving controller which generates a voltage control signal for adjusting a first power voltage applied to the display panel in an (N+M)-th frame based on a maximum grayscale value of the input image data of an N-th frame, where N is a positive integer, and M is a positive integer, and a power voltage generator which senses a power current applied to the display panel in the (N+M)-th frame, generates a second power voltage based on the voltage control signal, and controls a voltage level of the first power voltage based on the second power voltage and a current level of the power current.

公开(公告)号：US11829210B2

公开(公告)日：2023-11-28

申请号：US17454512

申请日：2021-11-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyoseok Yun ,  Taegon Kim ,  Myoungseop Song ,  Jongmin Shim ,  Jang-Mi Lee ,  Kihyun Pyun

IPC: G06F1/18 ,  G09G3/20

CPC classification number: G06F1/183 ,  G06F1/189 ,  G09G3/20 ,  G09G2310/0275

Abstract: A circuit board assembly includes a main board and a connection board attached to the main board. The connection board includes a base board including a connecting pad area and a mounting area, wherein the connection board is attached to the main board in the connecting pad area, and wherein the mounting area is spaced apart from the connecting pad area in a first direction and includes a driving chip mounted thereon. The connection board further includes first connection pads disposed on the connecting pad area of the base board, and second connection pads disposed on the connecting pad area of the base board. The main board includes first main pads connected to the first connection pads in a one-to-one connection and a second main pad connected to the second connection pads in a many-to-one connection.

公开(公告)号：US11817029B2

公开(公告)日：2023-11-14

申请号：US17874232

申请日：2022-07-26

Applicant: Samsung Display Co., LTD.

Inventor： Kihyun Pyun ,  Heesook Park

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2320/0295 ,  G09G2320/046 ,  G09G2320/103 ,  G09G2330/022 ,  G09G2330/023 ,  G09G2360/16

Abstract: A screen saver controller including a load calculator configured to generate load data of an image represented by input image data, a maximum gray level calculator configured to generate maximum gray level data of the image represented by the input image data, and a screen saver data generator configured to determine a gain of a screen saver mode based on the load data and the maximum gray level data when the screen saver mode is operated and to generate screen saver data based on the input image data and the gain.

公开(公告)号：US11682354B1

公开(公告)日：2023-06-20

申请号：US17981225

申请日：2022-11-04

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun Pyun ,  Hyunjoo Seo

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/0857

Abstract: A display device is disclosed that includes a display panel, a first source circuit board, a second source circuit board, and a control circuit board. The first source circuit board is configured to output a first feedback voltage corresponding to a first driving voltage. The second source circuit board is configured to output a second feedback voltage corresponding to the second driving voltage. The control circuit board is configured to supply the first and second driving voltages to the first and second source circuit boards, respectively, and receive the first and second feedback voltages from the first and second source circuit boards, respectively. The control circuit board includes a comparison unit configured to compare the first and second feedback voltages with a preset reference voltage and generate a result signal in response to a comparison result, and a generation unit configured to generate a protection signal for activating a protection mode for protecting the display panel based on the result signal.