公开(公告)号：US20150130367A1

公开(公告)日：2015-05-14

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

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：US10002554B2

公开(公告)日：2018-06-19

申请号：US14602937

申请日：2015-01-22

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/00 ,  G09G3/32 ,  G09G3/20

CPC classification number: G09G3/20 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/12

Abstract: A display device includes a display panel, a power supply unit, a first current measuring unit, and an overcurrent preventing switch. The power supply unit provides a power supply voltage to the display panel. The first current measuring unit is connected to a first path for providing the power supply voltage from the power supply unit to the display panel and measures a first current flowing through the first path. The overcurrent preventing switch is connected in parallel with the first current measuring unit and selectively forms a detour path for the first path according to an amount of the first current such that at least a portion of the first current flows through the detour path.

公开(公告)号：US09898970B2

公开(公告)日：2018-02-20

申请号：US14624538

申请日：2015-02-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Byeong-Doo Kang ,  Jong-Man Bae

IPC: G09G5/00 ,  G09G3/3291 ,  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.

公开(公告)号：US20170124939A1

公开(公告)日：2017-05-04

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

CPC classification number: G09G3/3208 ,  G09G3/3233 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0876 ,  G09G2320/0233 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

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：US09379539B2

公开(公告)日：2016-06-28

申请号：US14082896

申请日：2013-11-18

Applicant: Samsung Display Co., Ltd.

Inventor： Byeong-Doo Kang ,  Weon-Jun Choe

IPC: H02H5/04 ,  H02H9/04 ,  G09G3/20

CPC classification number: H02H9/045 ,  G09G3/20 ,  G09G2310/0272 ,  G09G2310/0297 ,  G09G2330/045

Abstract: A protection circuit includes: a temperature measuring unit which compares a voltage corresponding to a temperature at each of a plurality of sense points with a reference voltage, and generates a measurement result based on a result of comparison; a controller which generates a plurality of current control signals, which controls currents of a plurality of channels corresponding to the plurality of sense points, respectively, based on the measurement result from the temperature measuring unit; and a plurality of phase converter which outputs the currents of the plurality of channels based on the plurality of current control signals, wherein the controller generates the plurality of current control signals until the voltage corresponding to the temperature of each of the plurality of sense points is substantially equal to the reference voltage.

Abstract translation: 保护电路包括：温度测量单元，其将与多个感测点中的每一个处的温度相对应的电压与参考电压进行比较，并且基于比较结果生成测量结果; 控制器，其基于来自所述温度测量单元的测量结果分别产生多个电流控制信号，所述多个电流控制信号分别控制对应于所述多个感测点的多个通道的电流; 以及多个相位转换器，其基于所述多个电流控制信号输出所述多个通道的电流，其中，所述控制器生成所述多个电流控制信号，直到与所述多个感测点中的每一个的温度相对应的电压为 基本上等于参考电压。

公开(公告)号：US20160063905A1

公开(公告)日：2016-03-03

申请号：US14602937

申请日：2015-01-22

Applicant: Samsung Display Co., Ltd.

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

IPC: G09G3/00 ,  G09G3/32

CPC classification number: G09G3/20 ,  G09G2330/021 ,  G09G2330/025 ,  G09G2330/028 ,  G09G2330/04 ,  G09G2330/12

Abstract: A display device includes a display panel, a power supply unit, a first current measuring unit, and an overcurrent preventing switch. The power supply unit provides a power supply voltage to the display panel. The first current measuring unit is connected to a first path for providing the power supply voltage from the power supply unit to the display panel and measures a first current flowing through the first path. The overcurrent preventing switch is connected in parallel with the first current measuring unit and selectively forms a detour path for the first path according to an amount of the first current such that at least a portion of the first current flows through the detour path.

Abstract translation: 显示装置包括显示面板，电源单元，第一电流测量单元和过电流防止开关。 电源单元向显示面板提供电源电压。 第一电流测量单元连接到第一路径，用于将电源电压从电源单元提供到显示面板，并测量流过第一路径的第一电流。 过电流防止开关与第一电流测量单元并联连接，并且根据第一电流的量选择性地形成用于第一路径的迂回路径，使得第一电流的至少一部分流过迂回路径。