公开(公告)号：US09535440B2

公开(公告)日：2017-01-03

申请号：US13836358

申请日：2013-03-15

Applicant: Samsung Display Co., LTD.

Inventor： Jeong-Min Seo ,  Sung-Cheon Park

IPC: G09G5/10 ,  G05F1/595 ,  G09G3/32 ,  H02M3/156 ,  H02M3/158 ,  H05B33/08 ,  H03K17/12

CPC classification number: G05F1/595 ,  G09G3/3208 ,  G09G2330/028 ,  H02M3/156 ,  H02M3/158 ,  H03K17/122 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/0896

Abstract: There are provided a DC-DC converter and an organic light emitting display device using the same. A DC-DC converter includes a converting module and a sensing unit. The converting module includes a switching module and a control module. The switching module has a plurality of switches, and each of the plurality of switches converts an input voltage into a first voltage and outputs the first voltage while being turned on/off in response to a corresponding pulse width modulation (PWM) signal. The control module controls a switching operation of the switching module by generating the PWM signal. The sensing unit senses driving current supplied to a load to which the first voltage is provided.

Abstract translation: 提供了一种DC-DC转换器和使用该DC-DC转换器的有机发光显示装置。 DC-DC转换器包括转换模块和感测单元。 转换模块包括开关模块和控制模块。 开关模块具有多个开关，并且多个开关中的每个开关将输入电压转换为第一电压，并响应于对应的脉宽调制（PWM）信号而导通/截止而输出第一电压。 控制模块通过产生PWM信号来控制开关模块的开关操作。 感测单元感测提供给提供第一电压的负载的驱动电流。

公开(公告)号：US09414461B2

公开(公告)日：2016-08-09

申请号：US14446641

申请日：2014-07-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Cheon Park

IPC: H05B33/08 ,  H02M3/158 ,  H02M1/00 ,  G09G3/32

CPC classification number: H05B33/0896 ,  G09G3/3233 ,  G09G2330/02 ,  H02M3/158 ,  H02M3/1588 ,  H02M2001/0054 ,  Y02B70/1466 ,  Y02B70/1491

Abstract: An organic light emitting display device includes a DC-DC converter to supply first and second voltages to one or more pixels. The DC-DC converter includes a first voltage supply to convert an input voltage to a first voltage and a second voltage supply to convert the input voltage to a second voltage. The first and second voltages are coupled to opposing ends of the one or more pixels. The first voltage supply includes a first inductor between a first input terminal and first node, a first transistor between the first node and a reference potential, a second transistor between the first node and first output terminal, a first diode between the first node and a second node, a second diode between the second node and first output terminal, and a first switch between the second node and first output terminal.

Abstract translation: 有机发光显示装置包括DC-DC转换器，用于向一个或多个像素提供第一和第二电压。 DC-DC转换器包括将输入电压转换为第一电压的第一电压电源和第二电压电源，以将输入电压转换为第二电压。 第一和第二电压耦合到一个或多个像素的相对端。 第一电压源包括在第一输入端和第一节点之间的第一电感器，第一节点和参考电位之间的第一晶体管，第一节点和第一输出端之间的第二晶体管，第一节点和第一节点之间的第一二极管 第二节点，第二节点和第一输出终端之间的第二二极管，以及第二节点和第一输出终端之间的第一开关。

公开(公告)号：US09298288B2

公开(公告)日：2016-03-29

申请号：US13705108

申请日：2012-12-04

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Cheon Park

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

CPC classification number: G06F3/038 ,  G09G3/20 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/08

Abstract: A driving apparatus of a display panel comprises a display panel for displaying an image according to an image signal; a DC-DC converter configured to output a voltage supplied from an external power source as a driving power source voltage for driving the display panel; a signal controller configured to generate a power supply enable signal for controlling an operation of the DC-DC converter and transfer it to the DC-DC converter; and a driving controller configured to determine an operation of the DC-DC converter according to a state of the driving power source voltage by receiving the driving power source voltage and comparing the received driving power source voltage with a pulse voltage of the power supply enable signal, and drive the DC-DC converter by adjusting the power supply enable signal in case the DC-DC converter is not operated.

Abstract translation: 显示面板的驱动装置包括：显示面板，用于根据图像信号显示图像; DC-DC转换器，被配置为输出从外部电源提供的电压作为用于驱动显示面板的驱动电源电压; 信号控制器，被配置为产生用于控制DC-DC转换器的操作并将其传送到DC-DC转换器的电源使能信号; 以及驱动控制器，被配置为通过接收驱动电源电压来根据驱动电源电压的状态来确定DC-DC转换器的操作，并将接收到的驱动电源电压与电源使能信号的脉冲电压进行比较 并且在DC-DC转换器不工作的情况下通过调节电源使能信号来驱动DC-DC转换器。

公开(公告)号：US10310589B2

公开(公告)日：2019-06-04

申请号：US15408015

申请日：2017-01-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Soon-Gi Kwon ,  Sung-Cheon Park

IPC: G06F9/00 ,  G06F1/3287 ,  G06F1/30 ,  H02M1/32 ,  H02M3/158 ,  G09G3/20 ,  G06F1/3234 ,  G06F1/3296 ,  H02M1/00

Abstract: A power controller includes an inductor coupled to an input terminal to which an input voltage is input, a first switch coupled between the inductor and a first power source voltage output terminal, a second switch coupled between the inductor and a ground, a switch controller controlling a voltage output to the first power source voltage output terminal by controlling duties of the first and second switches according to a feedback voltage input to a feedback terminal corresponding to a voltage output to the first power source voltage output terminal, and a diode coupled between the first power source voltage output terminal and the feedback terminal, and preventing a voltage of the first power source voltage output terminal from increasing higher than a breakdown voltage of the first and second switches.

公开(公告)号：US20170039951A1

公开(公告)日：2017-02-09

申请号：US15236168

申请日：2016-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Cheon Park

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0866 ,  G09G2330/028

Abstract: An organic light emitting display includes a plurality of pixels coupled to scan and data lines; a scan driver configured to supply a scan signal to the pixels through the scan lines; a data driver configured to supply a data signal to the pixels through the data lines; and a power supplier configured to supply first and second voltages to the pixels and a third voltage to at least one of the scan and the data driver, wherein the power supplier includes a first converter configured to convert an input voltage into the first voltage, a second converter configured to convert the input voltage into the second voltage, a third converter configured to receive the first voltage and convert the received first voltage into the third voltage, and a shutdown switch configured to control whether or not the first voltage generated by the first converter is supplied to the pixels.

Abstract translation: 有机发光显示器包括耦合到扫描和数据线的多个像素; 扫描驱动器，被配置为通过扫描线向像素提供扫描信号; 数据驱动器，被配置为通过数据线向像素提供数据信号; 以及供电器，被配置为向所述像素提供第一和第二电压，并将第三电压提供给所述扫描和所述数据驱动器中的至少一个，其中所述电力供应器包括被配置为将输入电压转换为所述第一电压的第一转换器， 第二转换器，被配置为将输入电压转换成第二电压;第三转换器，被配置为接收第一电压并将接收的第一电压转换为第三电压;以及关闭开关，被配置为控制由第一电压产生的第一电压 转换器被提供给像素。

公开(公告)号：US20140118413A1

公开(公告)日：2014-05-01

申请号：US13834315

申请日：2013-03-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Cheon Park

IPC: G05F1/59 ,  G09G3/32

CPC classification number: G05F1/595 ,  G09G3/3208 ,  G09G2330/028 ,  H02M3/156 ,  H02M3/158 ,  H03K17/122 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/0896

Abstract: There are provided a DC-DC converter and an organic light emitting display device using the same. A DC-DC converter includes a switching module that converts an input voltage into a first voltage through switching operations of a plurality of switches that are turned on or off in response to a pulse width modulation (PWM) signal, and outputs the first voltage; a sensing unit that senses driving current supplied to a load to which the first voltage is provided; and a control module that controls the switching module by generating the PWM signal. The control module is configured to adaptively control the turn-on resistance of the switching module according to the sensed result of the sensing unit. Accordingly, it is possible to provide a DC-DC converter and an organic light emitting display device using the same which has optimal efficiency by adaptively operating according to a load condition.

Abstract translation: 提供了一种DC-DC转换器和使用该DC-DC转换器的有机发光显示装置。 DC-DC转换器包括：开关模块，其通过响应于脉宽调制（PWM）信号导通或关断的多个开关的开关操作将输入电压转换为第一电压，并输出第一电压; 感测单元，其感测提供给提供所述第一电压的负载的驱动电流; 以及通过产生PWM信号来控制开关模块的控制模块。 控制模块被配置为根据感测单元的感测结果自适应地控制开关模块的导通电阻。 因此，可以根据负载条件自适应地提供具有最佳效率的DC-DC转换器和使用该DC-DC转换器的有机发光显示装置。

公开(公告)号：US20140043314A1

公开(公告)日：2014-02-13

申请号：US13705108

申请日：2012-12-04

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sung-Cheon Park

IPC: G06F3/038

CPC classification number: G06F3/038 ,  G09G3/20 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/08

Abstract: A driving apparatus of a display panel comprises a display panel for displaying an image according to an image signal; a DC-DC converter configured to output a voltage supplied from an external power source as a driving power source voltage for driving the display panel; a signal controller configured to generate a power supply enable signal for controlling an operation of the DC-DC converter and transfer it to the DC-DC converter; and a driving controller configured to determine an operation of the DC-DC converter according to a state of the driving power source voltage by receiving the driving power source voltage and comparing the received driving power source voltage with a pulse voltage of the power supply enable signal, and drive the DC-DC converter by adjusting the power supply enable signal in case the DC-DC converter is not operated.

Abstract translation: 显示面板的驱动装置包括：显示面板，用于根据图像信号显示图像; DC-DC转换器，被配置为输出从外部电源提供的电压作为用于驱动显示面板的驱动电源电压; 信号控制器，被配置为产生用于控制DC-DC转换器的操作并将其传送到DC-DC转换器的电源使能信号; 以及驱动控制器，被配置为通过接收驱动电源电压来根据驱动电源电压的状态来确定DC-DC转换器的操作，并将接收到的驱动电源电压与电源使能信号的脉冲电压进行比较 并且在DC-DC转换器不工作的情况下通过调节电源使能信号来驱动DC-DC转换器。

公开(公告)号：US10170047B2

公开(公告)日：2019-01-01

申请号：US15236168

申请日：2016-08-12

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Cheon Park

IPC: G09G5/00 ,  G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

Abstract: An organic light emitting display includes a plurality of pixels coupled to scan and data lines; a scan driver configured to supply a scan signal to the pixels through the scan lines; a data driver configured to supply a data signal to the pixels through the data lines; and a power supplier configured to supply first and second voltages to the pixels and a third voltage to at least one of the scan and the data driver, wherein the power supplier includes a first converter configured to convert an input voltage into the first voltage, a second converter configured to convert the input voltage into the second voltage, a third converter configured to receive the first voltage and convert the received first voltage into the third voltage, and a shutdown switch configured to control whether or not the first voltage generated by the first converter is supplied to the pixels.

公开(公告)号：US09875692B2

公开(公告)日：2018-01-23

申请号：US15147102

申请日：2016-05-05

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Cheon Park

IPC: G05F1/00 ,  G09G3/3258 ,  H02M1/32 ,  H02M3/156 ,  H05B33/08 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3291 ,  H02M1/08 ,  H02M3/158 ,  G06F3/042 ,  H02M1/00

CPC classification number: G09G3/3258 ,  G06F3/042 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0819 ,  G09G2300/0823 ,  G09G2310/0256 ,  G09G2310/0278 ,  G09G2330/00 ,  G09G2330/04 ,  H02M1/08 ,  H02M1/32 ,  H02M3/156 ,  H02M3/158 ,  H02M2001/0025 ,  H02M2001/325 ,  H05B33/0815 ,  H05B33/0887 ,  H05B33/0896

Abstract: Disclosed are a direct current converter and an organic light emitting display including the converter. The converter includes a power generator configured to generate a first voltage; an output terminal connected to the power generator and configured to output the first voltage; a feedback terminal connected to an external feedback wiring and configured to input a second voltage to a selector; and the selector connected to the first power generator, and configured to transfer the first voltage or the second voltage to the first power generator.

公开(公告)号：US09424774B2

公开(公告)日：2016-08-23

申请号：US14165234

申请日：2014-01-27

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Cheon Park

IPC: G09G5/00 ,  G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0866 ,  G09G2330/028

Abstract: An organic light emitting display includes a plurality of pixels coupled to scan and data lines; a scan driver configured to supply a scan signal to the pixels through the scan lines; a data driver configured to supply a data signal to the pixels through the data lines; and a power supplier configured to supply first and second voltages to the pixels and a third voltage to at least one of the scan and the data driver, wherein the power supplier includes a first converter configured to convert an input voltage into the first voltage, a second converter configured to convert the input voltage into the second voltage, a third converter configured to receive the first voltage and convert the received first voltage into the third voltage, and a shutdown switch configured to control whether or not the first voltage generated by the first converter is supplied to the pixels.

Abstract translation: 有机发光显示器包括耦合到扫描和数据线的多个像素; 扫描驱动器，被配置为通过扫描线向像素提供扫描信号; 数据驱动器，被配置为通过数据线向像素提供数据信号; 以及供电器，被配置为向所述像素提供第一和第二电压，并将第三电压提供给所述扫描和所述数据驱动器中的至少一个，其中所述电力供应器包括被配置为将输入电压转换为所述第一电压的第一转换器， 第二转换器，被配置为将输入电压转换成第二电压;第三转换器，被配置为接收第一电压并将接收的第一电压转换成第三电压;以及关闭开关，被配置为控制由第一电压产生的第一电压 转换器被提供给像素。