公开(公告)号：US11869439B2

公开(公告)日：2024-01-09

申请号：US17717997

申请日：2022-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jinyoung Roh ,  Bonghyun You ,  Hyojin Lee ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2330/023 ,  G09G2330/028

Abstract: A display apparatus includes a display panel, a gate driver, a data driver, a driving controller and a power voltage generator. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line. The data driver outputs a data voltage to a data line. The driving controller drives display areas of the display panel in different driving frequencies. The power voltage generator outputs a data power voltage to the data driver. The driving controller outputs an output data enable signal including a writing period having an active signal and a holding period having an inactive signal for the respective display areas. The power voltage generator generates the data power voltage having a high power voltage level during the writing period and a low power voltage level in at least a portion of the holding period.

公开(公告)号：US11756469B2

公开(公告)日：2023-09-12

申请号：US17903423

申请日：2022-09-06

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jaekeun Lim ,  Jinyoung Roh ,  Hyojin Lee

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/08 ,  G09G2320/0209

Abstract: A display device includes a display panel including a first display region and a second display region surrounding the first display region, where a first pixel having a first size is disposed in the first display region, and a second pixel having a second size is disposed in the second display region, a gate driver which applies a gate signal to a gate line, a data driver which applies a data voltage to a data line, and a timing controller which controls the gate driver and the data driver. The gate line includes a first gate line connected to both the first pixel and the second pixel, and a second gate line connected only to the second pixel. The data line includes a first data line which does not transmit the data voltage to the second pixel connected to the second gate line, and a second data line which transmits the data voltage to the second pixel connected to the second gate line.

公开(公告)号：US11468853B2

公开(公告)日：2022-10-11

申请号：US17389466

申请日：2021-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Jinyoung Roh ,  Hongsoo Kim ,  Sehyuk Park ,  Hyojin Lee ,  Jaekeun Lim

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

Abstract: A gate driver includes a first stage, a second stage, a third stage and a fourth stage. The first stage includes a first clock terminal receiving a first clock signal, a second clock terminal receiving a second clock signal, a carry terminal receiving a vertical start signal and an output terminal outputting a first gate output signal. The second stage includes a first clock terminal receiving the second clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving the vertical start signal and an output terminal outputting a second gate output signal. The third stage includes a first clock terminal receiving the second clock signal, a second clock terminal receiving the first clock signal, a carry terminal receiving the first gate output signal and an output terminal outputting a third gate output signal.

公开(公告)号：US11423843B2

公开(公告)日：2022-08-23

申请号：US17342585

申请日：2021-06-09

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Hui Nam ,  Bonghyun You ,  Changnoh Yoon ,  Jaekeun Lim

IPC: G09G3/3266 ,  G09G3/3225

Abstract: Provided is a scan driver of a display device, and the scan driver includes a driving circuit and a masking circuit. The driving circuit includes a control circuit, a first output circuit, and a second output circuit. The control circuit outputs a first control signal and a second control signal. The first output circuit is connected to a first output terminal which outputs a first scan signal and a first voltage terminal and operates in response to a first control signal. The second output circuit is connected to a first output terminal and a second voltage terminal and operates in response to a second control signal. The masking circuit outputs a second scan signal to a second output terminal in response to the first control signal and the second control signal and is connected to an input terminal to which a masking signal is supplied.

公开(公告)号：US10964253B2

公开(公告)日：2021-03-30

申请号：US16546205

申请日：2019-08-20

Applicant: Samsung Display Co., Ltd.

Inventor： Jaekeun Lim ,  Jeongkyoo Kim

IPC: G09G3/32

Abstract: Each of pixels of a display device includes: a light-emitting portion including first light-emitting devices that are connected in a forward direction between a first electrode and a second electrode and second light-emitting devices that are connected in a reverse direction between the first electrode and the second electrode; a pixel circuit configured to receive a data voltage in synchronization with a scan signal, generate a driving current based on the data voltage, and output the driving current to a first node; and a light-emitting circuit configured to be controlled by a control signal, provide the driving current to the first light-emitting devices during a first emission period, and provide the driving current to the second light-emitting devices during a second emission period.

公开(公告)号：US10720117B2

公开(公告)日：2020-07-21

申请号：US15091072

申请日：2016-04-05

Applicant: Samsung Display Co., Ltd.

Inventor： Jonghee Kim ,  Jisun Kim ,  Youngwan Seo ,  Jaekeun Lim ,  Chongchul Chai

IPC: G09G3/36 ,  G11C19/28 ,  G02F1/1345 ,  G09G3/3266

Abstract: A display device including: a display panel including a gate line and a data line; and a shift register including a stage for driving the gate line. The stage may include a first driving unit in a display area of the display panel and a second driving unit in a non-display area of the display panel.

公开(公告)号：US10109244B2

公开(公告)日：2018-10-23

申请号：US14930808

申请日：2015-11-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yeun Tae Kim ,  Hee-Keun Lee ,  Jaekeun Lim

IPC: G09G3/36 ,  H04N9/30 ,  G02F1/1333 ,  G02F1/167

Abstract: A display device includes a substrate and pixels arranged on the substrate in a matrix form. The substrate includes a display area in which the pixels are arranged and a non-display area disposed adjacent to a side of the display area. Each pixel includes a cover layer that extends in a row direction that includes a sidewall portion connected to the substrate and a cover portion spaced apart from the substrate and connected to the sidewall portion to define a tunnel-shaped cavity on the substrate. A width of the sidewall portion between adjacent pixels is less than a width of the sidewall portion disposed at an outermost position, and the cover layer seals one side of the tunnel-shaped cavity in the pixels arranged in a first row and a last row.

公开(公告)号：US09830845B2

公开(公告)日：2017-11-28

申请号：US14958764

申请日：2015-12-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jaekeun Lim ,  Ji-sun Kim ,  Jonghee Kim ,  Chongchul Chai

IPC: G09G3/20 ,  G06F3/038 ,  G09G5/00

CPC classification number: G09G3/20 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A gate driving circuit includes a plurality of driving stages applying gate signals to gate lines of a display panel. Among the plurality of driving stages, a k-th (k being a natural number equal to or greater than 2) includes a first node, an output part that is connected to the first node and outputs a k-th gate signal in response to a voltage of the first node, a control part that controls an electric potential of the first node, an inverter part that outputs a k-th switching signal, and a pull-down part that receives a (k−1)th switching signal from a (k−1)th driving stage of the plurality of driving stages and lowers a voltage of the output part in response to the (k−1)th switching signal.

公开(公告)号：US09704429B2

公开(公告)日：2017-07-11

申请号：US14857747

申请日：2015-09-17

Applicant: Samsung Display Co., Ltd.

Inventor： Youngwan Seo ,  Ji-sun Kim ,  Jaekeun Lim ,  Jonghee Kim ,  Chongchul Chai

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/2085 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/08 ,  G09G2310/0267

Abstract: A display device includes: a display panel having a display area and a non-display area; a plurality of pixels on the display area to emit light, wherein pixels arranged along a first direction are defined as first pixel groups and pixels arranged along a second direction are defined as second pixel groups; gate driving units on the display area to generate gate signals, wherein the gate driving units include first and second gate driving units corresponding one-to-one with each other; a data driver on the non-display area to generate data signals; a plurality of first lines to transmit the data signals to the plurality of pixels; and a plurality of second lines to transmit driving start signals from the first gate driving units to the second gate driving units respectively corresponding to the first gate driving units, wherein the first or second lines are between the first groups.

公开(公告)号：US20150194121A1

公开(公告)日：2015-07-09

申请号：US14478530

申请日：2014-09-05

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol-Gon LEE ,  Kyoungju Shin ,  Chongchul Chai ,  HyunJoon Kim ,  Jaekeun Lim

IPC: G09G3/36

CPC classification number: G09G3/3266 ,  G09G3/3677 ,  G09G2300/0413 ,  G09G2300/043 ,  G09G2310/0213 ,  G09G2310/0251 ,  G09G2310/0289 ,  G09G2320/0223 ,  G09G2320/103 ,  G09G2330/023 ,  G11C19/28

Abstract: A display device is disclosed. In one aspect, the display device includes a timing controller configured to receive an image signal and a control signal and output a mode signal and a gate pulse signal based on the image signal and the control signal, wherein the mode signal has a voltage level and wherein the gate pulse signal has a frequency. The display device further includes a clock generator configured to generate a gate clock signal based on the mode signal and the gate pulse signal, wherein the gate clock signal has a voltage level and wherein the clock generator is further configured to set the voltage level of the gate clock signal based at least in part on the mode signal. The display device includes gate lines and a gate driver configured to drive gate lines based at least in part on the gate clock signal.

Abstract translation: 公开了一种显示装置。 一方面，显示装置包括定时控制器，其被配置为基于图像信号和控制信号接收图像信号和控制信号并输出​​模式信号和门脉冲信号，其中模式信号具有电压电平，以及 其中所述栅极脉冲信号具有频率。 所述显示装置还包括时钟发生器，其被配置为基于所述模式信号和所述门脉冲信号产生栅极时钟信号，其中所述栅极时钟信号具有电压电平，并且其中所述时钟发生器还被配置为将所述栅极时钟信号 栅极时钟信号至少部分地基于模式信号。 显示装置包括栅极线和栅极驱动器，栅极驱动器被配置为至少部分地基于栅极时钟信号来驱动栅极线。