公开(公告)号：US20200279523A1

公开(公告)日：2020-09-03

申请号：US16876380

申请日：2020-05-18

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yanguk NAM ,  Jongjae LEE ,  Sujin KIM ,  Daesik LEE ,  Junki HONG ,  Heejeong SEO

IPC: G09G3/20 ,  G09G3/36

Abstract: A display device includes a display panel, pixels on the display panel, data and gate drivers, a timing controller which applies control signals respectively to the data and gate drivers, and a power management integrated circuit (“PMIC”) which applies a driving voltage to the data and gate drivers. The timing controller detects an operational condition of the display panel and selects one of stored power setting values to output the selected one of the power setting values to the PMIC. The PMIC includes, first and second storage banks, a controller which receives the power setting value from the timing controller, stores the power setting value in one of the first and second storage banks, and calls the stored power setting value to determine the driving voltage, and a power generator which applies the driving voltage based on the driving voltage determined by the controller.

公开(公告)号：US20170337890A1

公开(公告)日：2017-11-23

申请号：US15596496

申请日：2017-05-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seokhwan LEE ,  Jongjae LEE ,  Junki HONG

IPC: G09G3/36

Abstract: A power supply device includes a power circuit, feedback circuit, compensation circuit, and PWM controller. The power circuit generates an output voltage based on a PWM signal. The feedback circuit outputs a feedback voltage. The compensation circuit compares a reference voltage with the feedback voltage and outputs a compensation signal based on a comparison result. The PWM controller adjusts the duty ratio of the PWM signal based on the compensation signal. The compensation circuit includes a comparator to compare the feedback voltage with the reference voltage, a first voltage adjuster to adjust a voltage level of a compensation voltage based on the comparison result, and a compensator output the compensation signal based on the voltage level of the compensation voltage. The compensation signal has a width in a high section that varies. The booster boosts the response speed of the compensator in a predetermined section based on a control signal.

公开(公告)号：US20180158397A1

公开(公告)日：2018-06-07

申请号：US15827395

申请日：2017-11-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yanguk NAM ,  Jongjae LEE ,  Sujin KIM ,  Daesik LEE ,  Junki HONG ,  Heejeong SEO

IPC: G09G3/20 ,  G09G3/36

CPC classification number: G09G3/2096 ,  G09G3/003 ,  G09G3/3611 ,  G09G3/3677 ,  G09G3/3688 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/041 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2330/021 ,  G09G2330/023

Abstract: A display device includes a display panel, pixels on the display panel, data and gate drivers, a timing controller which applies control signals respectively to the data and gate drivers, and a power management integrated circuit (“PMIC”) which applies a driving voltage to the data and gate drivers. The timing controller detects an operational condition of the display panel and selects one of stored power setting values to output the selected one of the power setting values to the PMIC. The PMIC includes, first and second storage banks, a controller which receives the power setting value from the timing controller, stores the power setting value in one of the first and second storage banks, and calls the stored power setting value to determine the driving voltage, and a power generator which applies the driving voltage based on the driving voltage determined by the controller.

公开(公告)号：US20160203746A1

公开(公告)日：2016-07-14

申请号：US14919162

申请日：2015-10-21

Applicant: Samsung Display Co., Ltd.

Inventor： Jundal KIM ,  Sujin KIM ,  Yoonsik PARK ,  Jang hee PARK ,  Jong jae LEE ,  Se Young HEO ,  Junki HONG

IPC: G09G3/20

CPC classification number: G09G3/3696 ,  G09G3/3688 ,  G09G2320/0223 ,  G09G2330/021

Abstract: A display device includes: a display panel including a plurality of pixels; a driving circuit configured to control the plurality of pixels; and a power controller configured to apply an output voltage to the driving circuit and to receive a feedback signal indicating an input level of the output voltage applied at an input of the driving circuit. The power controller is configured to adjust an output level of the output voltage in response to the feedback signal.

Abstract translation: 显示装置包括：显示面板，包括多个像素; 配置为控制所述多个像素的驱动电路; 以及功率控制器，被配置为向所述驱动电路施加输出电压并且接收指示施加在所述驱动电路的输入端的输出电压的输入电平的反馈信号。 功率控制器被配置为响应于反馈信号来调节输出电压的输出电平。

公开(公告)号：US20160104407A1

公开(公告)日：2016-04-14

申请号：US14683732

申请日：2015-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Junki HONG ,  Yanguk NAM ,  Jong Jae LEE

IPC: G09G3/20

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2300/0413 ,  G09G2330/045 ,  G09G2330/10 ,  G09G2330/12 ,  G11C7/04 ,  G11C19/28

Abstract: A display apparatus including: a plurality of pixels receiving data voltages in response to gate signals; a drive circuit generating a power voltage and a control signal; a gate driver operating with the power voltage, generating the gate signals and a dummy gate signal in response to the control signal, and supplying the dummy gate signal to the drive circuit; and a data driver operating with the power voltage and generating the data voltages in response to the control signal. The drive circuit measures a temperature of the drive circuit, and a voltage and a current at an output node of the drive circuit generating the power voltage. The measured temperature, voltage and current, and the dummy gate signal are stored in the drive circuit in a predetermined order. This information can be used to detect error states that the display can indicate and use to protect itself from damage.

Abstract translation: 一种显示装置，包括：响应于门信号而接收数据电压的多个像素; 产生电源电压和控制信号的驱动电路; 操作电源电压的栅极驱动器，响应控制信号产生栅极信号和虚拟栅极信号，并将虚拟栅极信号提供给驱动电路; 以及与电源电压一起操作并且响应于控制信号产生数据电压的数据驱动器。 驱动电路测量驱动电路的温度，以及在驱动电路的输出节点处产生电源电压的电压和电流。 测量的温度，电压和电流以及虚拟门信号以预定顺序存储在驱动电路中。 该信息可用于检测显示器可以指示和使用以防止损坏的错误状态。