公开(公告)号：US20210068219A1

公开(公告)日：2021-03-04

申请号：US16899061

申请日：2020-06-11

Applicant: Samsung Display Co., LTD.

Inventor： Dae-Sik LEE ,  Jiyoun SEO

IPC: H05B45/14 ,  G02F1/13357 ,  H05B45/48 ,  H05B45/325 ,  H05K1/18

Abstract: A light emitting device includes a light source panel including light emitting units, and a printed circuit board including a light source driving circuit electrically connected to the light source panel. The light source driving circuit receives a feedback voltage from each of the light emitting units, and compares the feedback voltage with a reference voltage to output a current control signal. Each of the light emitting units includes a light emitting diode connected to a first voltage line, a switching element connected with the light emitting diode and operating in response to the current control signal, and a resistor electrically connected between a feedback node and a second voltage line. The resistor includes a conductive pattern having a predetermined width disposed on the light source panel.

公开(公告)号：US20200020297A1

公开(公告)日：2020-01-16

申请号：US16388231

申请日：2019-04-18

Applicant: Samsung Display Co., Ltd.

Inventor： Yanguk NAM ,  Dae-Sik LEE ,  Taegon IM

IPC: G09G5/00

Abstract: A display apparatus includes a display panel, a data driver, a power voltage generator, a driving controller and a timing compensator. The display panel displays an image based on input image data. The data driver outputs a data voltage to the display panel. The power voltage generator outputs a data power voltage to the data driver. The driving controller controls a driving timing of the data driver. The timing compensator changes an output timing of the data voltage of the data driver when a feedback data power voltage is less than a reference data power voltage at a start point of an active period.

公开(公告)号：US20190278114A1

公开(公告)日：2019-09-12

申请号：US16260936

申请日：2019-01-29

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Sik LEE ,  Yanguk NAM ,  Sanghyun LEE

IPC: G02F1/13 ,  G09G3/3266 ,  G09G3/00 ,  G09G3/36 ,  G02F1/1345

Abstract: A short-circuit detection circuit includes a voltage comparison block that receives a scan start signal from a scan start signal transmission line, receives a reference voltage from a reference voltage source, and outputs a comparison result by comparing the scan start signal with the reference voltage at a falling edge of a vertical start signal, and a short-circuit determination block that determines whether the scan start signal transmission line is short-circuited based on the comparison result and operates an over-current protection circuit by providing a short-circuit detection signal to the over-current protection circuit when the scan start signal transmission line is short-circuited.

公开(公告)号：US20160248183A1

公开(公告)日：2016-08-25

申请号：US14749196

申请日：2015-06-24

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Sik LEE ,  Jin-Won JANG

IPC: H01R12/70

CPC classification number: H01R13/05 ,  H01R12/55

Abstract: A pin structure may be connected to a printed circuit board (PCB), and may include a circuit connection portion connected to a circuit component, a variable portion, and a PCB connection portion. The variable portion may be connected to the circuit connection portion and may be configured to deform in shape when the PCB is bent. The PCB connection portion is connected to the variable portion and connected to the PCB.

Abstract translation: 针结构可以连接到印刷电路板（PCB），并且可以包括连接到电路部件，可变部分和PCB连接部分的电路连接部分。 可变部分可以连接到电路连接部分，并且可以被配置为当PCB弯曲时形状变形。 PCB连接部分连接到可变部分并连接到PCB。

公开(公告)号：US20160140912A1

公开(公告)日：2016-05-19

申请号：US14850773

申请日：2015-09-10

Applicant: Samsung Display Co., Ltd.

Inventor： Taegon IM ,  Min-Soo CHOI ,  Min-Gyu KIM ,  Youngsup KWON ,  Eun Chul SHIN ,  Dae-Sik LEE

IPC: G09G3/34 ,  G09G3/00

CPC classification number: G09G3/3406 ,  G09G3/003 ,  G09G3/3426 ,  G09G2310/0237 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2320/062 ,  G09G2320/064 ,  G09G2320/08 ,  G09G2360/16

Abstract: A backlight unit includes a light source part including a light-emitting diode array, a DC/DC converter, a driving current controller, and a reference voltage variable part. The backlight unit is operated in a first mode or a second mode. The driving current controller controls a driving current flowing through the light-emitting diode array to have a first current level during the first mode and controls the driving current flowing through the light-emitting diode array to have a second current level during the second mode. The reference voltage variable part applies a first reference voltage to the driving current controller during the first mode and applies a second reference voltage to the driving current controller during the second mode.

Abstract translation: 背光单元包括包括发光二极管阵列，DC / DC转换器，驱动电流控制器和参考电压可变部分的光源部分。 背光单元在第一模式或第二模式下操作。 驱动电流控制器控制流过发光二极管阵列的驱动电流，以在第一模式期间具有第一电流电平，并且在第二模式期间控制流过发光二极管阵列的驱动电流具有第二电流电平。 参考电压可变部分在第一模式期间将第一参考电压施加到驱动电流控制器，并且在第二模式期间将第二参考电压施加到驱动电流控制器。

公开(公告)号：US20160029449A1

公开(公告)日：2016-01-28

申请号：US14609344

申请日：2015-01-29

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Sik LEE ,  SONGYI HAN ,  SeungYoung CHOI

IPC: H05B33/08 ,  G09G3/32 ,  G09G3/34

CPC classification number: G09G3/3406 ,  H05B33/0815 ,  H05B33/086

Abstract: According to an exemplary embodiment, a display device includes a backlight unit and a display panel. The backlight unit comprises a single light emitting diode string with a plurality of light emitting diodes that are connected to each other in series and configured to emit light. The backlight unit also comprises a detector configured to generate a first voltage and a second voltage with respect to an output voltage for driving the single light emitting diode string, sample the first voltage at a predetermined time interval to generate a sample voltage, and compare a level of the sample voltage with a level of the second voltage to generate a compared result. The display panel is configured to receive light from the backlight unit to display an image. The compared result determines whether the output voltage is applied to the light emitting diode string.

Abstract translation: 根据示例性实施例，显示装置包括背光单元和显示面板。 背光单元包括具有串联并被配置为发光的多个发光二极管的单个发光二极管串。 背光单元还包括检测器，被配置为相对于用于驱动单个发光二极管串的输出电压产生第一电压和第二电压，以预定时间间隔采样第一电压以产生采样电压，并且比较 采样电压的电平与第二电压的电平相乘以产生比较结果。 显示面板被配置为从背光单元接收光以显示图像。 比较结果确定输出电压是施加到发光二极管串。

公开(公告)号：US20250014513A1

公开(公告)日：2025-01-09

申请号：US18895394

申请日：2024-09-25

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Hyun LEE ,  Si Duk SUNG ,  Dae-Sik LEE

IPC: G09G3/32

Abstract: The current disclosure relates to a display device including a display panel including a plurality of pixels, and a plurality of gate lines and a plurality of data lines connected to the plurality of pixels, a gate driver applying a gate signal to the plurality of gate lines, a data driver applying a data signal to the plurality of data lines, and a voltage provider configured to generate a gate-on voltage that is gradually changed in one frame and a kickback voltage that is gradually changed in one frame to transmit the gate-on voltage and the kickback voltage to the gate driver.

公开(公告)号：US20210335166A1

公开(公告)日：2021-10-28

申请号：US17181309

申请日：2021-02-22

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Soo CHOI ,  Dae-Sik LEE ,  Ji Youn SEO ,  Gwang Soo AHN ,  Jong Jae LEE ,  Geun Hyuk CHOI

IPC: G09G3/00 ,  G09G3/20

Abstract: A power voltage generator includes a voltage sensor and a power controller. The voltage sensor is configured to sense a first voltage in a first charge sharing period of a gate clock signal and a second voltage in a second charge sharing period of the gate clock signal. The power breaker is configured to disconnect a power based on the first voltage and the second voltage.

公开(公告)号：US20200258455A1

公开(公告)日：2020-08-13

申请号：US16790525

申请日：2020-02-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dae-Sik LEE ,  Yoongu KIM ,  Seung Young CHOI ,  Keunoh KANG ,  Kihyun PYUN

IPC: G09G3/34 ,  G09G3/36

Abstract: A light source apparatus includes a light source and a light source driver. The light source includes a plurality of scan blocks. Each scan block includes a plurality of local dimming blocks. The light source driver includes a plurality of channels configured to output light source driving signals to the plurality of local dimming blocks. The light source driving signal includes a light source intensity value representing a light intensity of a local dimming block from among the plurality of local dimming blocks and a delay value representing a degree of a delay of the local dimming block. The delay value is determined by a scan delay value varied according to the plurality of scan blocks and a delay parameter.

公开(公告)号：US20200211482A1

公开(公告)日：2020-07-02

申请号：US16725202

申请日：2019-12-23

Applicant: Samsung Display Co., Ltd.

Inventor： Kihyun PYUN ,  Moonshik KANG ,  Dae-Sik LEE ,  Jun Pyo LEE ,  Min-Soo CHOI ,  Songyi HAN

IPC: G09G3/34 ,  H05B45/14

Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.