公开(公告)号：US09842526B2

公开(公告)日：2017-12-12

申请号：US14499710

申请日：2014-09-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byeong-Doo Kang

IPC: G09G3/30 ,  G09G5/00 ,  G09G3/20 ,  G09G3/3275 ,  G09G3/36

CPC classification number: G09G3/20 ,  G09G3/3275 ,  G09G3/3685 ,  G09G2310/0243 ,  G09G2310/0248 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2310/066 ,  G09G2330/025

Abstract: A flat panel display includes a signal generator to generate data signals to respective data lines via an output terminal or to generate a control signal for controlling switches. The signal generator includes a first voltage supply unit to supply, to the output terminal, a voltage of a first voltage sources, a voltage stabilizing unit to raise or drop the voltage supplied to the output terminal, and a second voltage supply unit to supply, to the output terminal, a voltage from a second voltage source, after the voltage of the output terminal is raised or dropped.

公开(公告)号：US10410593B2

公开(公告)日：2019-09-10

申请号：US15467706

申请日：2017-03-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jinwoo Kim ,  Byeong-Doo Kang ,  Jong-Hwa Kim ,  Jongman Bae

IPC: G09G3/36

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.

公开(公告)号：US10032408B2

公开(公告)日：2018-07-24

申请号：US15089075

申请日：2016-04-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byeong-Doo Kang ,  Jong-Hwa Kim

IPC: G09G3/3208 ,  H01L27/32 ,  H01L27/12

Abstract: A pixel circuit includes a scan transistor connected between a data line and a first node and being configured to receive a scan signal, an emission control transistor connected between a first power supply and a second node and being configured to receive an emission control signal, a driving transistor connected between the second node and a third node and being connected to the first node, an initialize transistor being configured to receive an initialization signal, a storage capacitor connected between the first node and the third node; an organic light emitting diode connected between the third node and a second power supply, a charge share capacitor connected between a fourth node and the second power supply; and a charge share transistor configured to connect the charge share capacitor to the storage capacitor, the charge share transistor being configured to receive a charge share control signal.

公开(公告)号：US20160063925A1

公开(公告)日：2016-03-03

申请号：US14616631

申请日：2015-02-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong-Man Bae ,  Byeong-Doo Kang ,  Jin-Woo Kim

IPC: G09G3/32 ,  G01R19/25

CPC classification number: G01R19/25 ,  G09G3/32 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2320/0626

Abstract: A current sensing device includes a variable resistor control unit calculating an estimated driving current based on image data to be displayed on the display panel and outputting variable resistor control signal corresponding to a current range that includes the estimated driving current, a current sensing unit sensing a driving current provided to pixels and outputting a sensing voltage corresponding to the driving current, a sensing voltage calculating unit changing an integral gain according to the variable resistor control signal and integrating the sensing voltage, and a calculating control unit controlling an operation of the sensing voltage calculating unit.

Abstract translation: 电流检测装置包括：可变电阻器控制单元，基于要显示在显示面板上的图像数据计算估计的驱动电流，并输出与包括估计的驱动电流的电流范围对应的可变电阻器控制信号;电流感测单元， 提供给像素的驱动电流并输出与驱动电流相对应的感测电压;感测电压计算单元，根据可变电阻器控制信号改变积分增益并积分感测电压;以及计算控制单元，控制感测电压的操作 计算单位。

公开(公告)号：US12062339B2

公开(公告)日：2024-08-13

申请号：US18369439

申请日：2023-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-Taek Kim ,  Byeong-Doo Kang ,  Jae Woo Ryu ,  Joonsuk Baik ,  Sekeun Lee

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2310/0294 ,  G09G2310/061

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

公开(公告)号：US09520086B2

公开(公告)日：2016-12-13

申请号：US14249319

申请日：2014-04-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jong-Man Bae ,  Byeong-Doo Kang ,  Jin-Woo Kim ,  Kyoung-Jin Park

IPC: H05B37/02 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G2330/02 ,  G09G2330/028

Abstract: A power voltage generating apparatus supplies a power voltage to a plurality of pixel circuits of a display apparatus. The power voltage generating apparatus includes: a high voltage converter to generate a high voltage; a low voltage converter to generate a low voltage; a switching circuit to alternately output the high voltage and the low voltage at a power voltage terminal as the power voltage; and a discharging unit coupled to the power voltage terminal and configured to discharge the power voltage terminal until a voltage output is converted from the high voltage to the low voltage by using the switching circuit.

Abstract translation: 电源电压产生装置向显示装置的多个像素电路提供电力电压。 电源电压发生装置包括：高电压转换器，用于产生高电压; 低电压转换器产生低电压; 切换电路，在电源电压端子交替地输出高电压和低电压作为电源电压; 以及放电单元，其耦合到所述电源电压端子并且被配置为通过使用所述开关电路来对所述电源电压端子进行放电，直到电压输出从所述高电压转换为低电压。

公开(公告)号：US11862102B2

公开(公告)日：2024-01-02

申请号：US17883869

申请日：2022-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-Taek Kim ,  Byeong-Doo Kang ,  Jae Woo Ryu ,  Joonsuk Baik ,  Sekeun Lee

IPC: G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2310/0278 ,  G09G2310/0294 ,  G09G2310/061

Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.

公开(公告)号：US10733948B2

公开(公告)日：2020-08-04

申请号：US16534288

申请日：2019-08-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jinwoo Kim ,  Byeong-Doo Kang ,  Jong-Hwa Kim ,  Jongman Bae

IPC: G09G3/36

Abstract: A display panel driving apparatus includes a data driver, a gate driver, an extra resistance part through which a constant current passes, and a circuit configured to generate a first gamma voltage, and output a first extra gamma voltage indirectly to the data driver through the extra resistance part. The data driver is configured to generate a data signal based on the first gamma voltage and output the data signal to a data line of a display panel. The gate driver is configured to output a gate signal to a gate line of the display panel.

公开(公告)号：US09837018B2

公开(公告)日：2017-12-05

申请号：US14680453

申请日：2015-04-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae-Hoon Lee ,  Jong-Man Bae ,  Byeong-Doo Kang ,  Jin-Woo Kim ,  Do-Hyung Ryu ,  Jae-Woo Song ,  Byung-Hyuk Shin ,  Baek-Woon Lee ,  Hae-Goo Jung

IPC: G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/3225 ,  G09G3/2022 ,  G09G2300/0426 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2330/02 ,  G09G2330/025 ,  G09G2330/028

Abstract: A display panel includes input power supply line coupled to a power supply at one or more edge portions of the display panel, and an output power supply line coupled to the input power supply line at a predetermined portion of the display panel. The input power supply line receives the power supply voltage, and the output power supply line receives the power supply voltage from the input power supply line. The power supply is coupled to the output power supply line at the one or more edge portions of the display panel, and receives the power supply voltage from the output power supply line to adjust a voltage level of the power supply voltage based on the power supply voltage from the output power supply line. The predetermined portion is at a location different from an edge of the display panel.

公开(公告)号：US20160078818A1

公开(公告)日：2016-03-17

申请号：US14624538

申请日：2015-02-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byeong-Doo Kang ,  Jong-Man Bae

IPC: G09G3/32 ,  G05F1/575

CPC classification number: G09G3/3291 ,  G05F1/575 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2320/0247 ,  G09G2330/027 ,  G09G2330/028

Abstract: A display device includes a data driver configured to generate a data signal based on a data voltage; a display panel configured to be driven based on a first power supply voltage and the data signal; a timing controller configured to control operations of the data driver and the display panel and configured to generate a ready signal indicating a power supply timing; a first voltage regulator configured to generate the first power supply voltage based on a first input voltage and a first enable signal; a second voltage regulator configured to generate the data voltage based on the first input voltage and a second enable signal; and a power sequence controller configured to generate the first enable signal based on the ready signal and the data voltage and configured to generate the second enable signal based on the ready signal and the first power supply voltage.

Abstract translation: 显示装置包括配置成基于数据电压生成数据信号的数据驱动器; 配置为基于第一电源电压和数据信号驱动的显示面板; 定时控制器，被配置为控制数据驱动器和显示面板的操作，并且被配置为产生指示电源定时的就绪信号; 第一电压调节器，被配置为基于第一输入电压和第一使能信号产生第一电源电压; 第二电压调节器，被配置为基于所述第一输入电压和第二使能信号产生所述数据电压; 以及功率控制器，被配置为基于就绪信号和数据电压产生第一使能信号，并且被配置为基于就绪信号和第一电源电压产生第二使能信号。