公开(公告)号：US20160209953A1

公开(公告)日：2016-07-21

申请号：US14837549

申请日：2015-08-27

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Woong KIM ,  Jun Yong SONG ,  Choong Sun SHIN

IPC: G06F3/044 ,  G09G5/00 ,  G06F3/047

CPC classification number: G09G5/003 ,  G06F3/0416

Abstract: A touch device includes first electrodes, second electrodes intersecting the first electrodes, and a touch controller configured to apply a first driving signal to first ends of the first electrodes, selectively apply a second driving signal to the second electrodes, detect self capacitances of at least one of the first electrodes and a first portion of the second electrodes intersecting the at least one of the first electrodes, the at least one of the first electrodes configured to receive the first driving signal and the first portion of the second electrodes configured to receive the second driving signal, and detect mutual capacitances between the at least one of the first electrodes and a second portion of the second electrodes intersecting the at least one first electrode, the second portion of the second electrodes configured not to receive the second driving signal.

Abstract translation: 触摸装置包括：第一电极，与第一电极相交的第二电极;以及触摸控制器，被配置为向第一电极的第一端施加第一驱动信号，选择性地将第二驱动信号施加到第二电极，至少检测至少的自身电容 所述第一电极中的一个和所述第二电极的第一部分与所述至少一个所述第一电极相交，所述第一电极中的所述至少一个被配置为接收所述第一驱动信号和所述第二电极的所述第一部分， 并且检测所述第一电极中的所述至少一个与所述第二电极的与所述至少一个第一电极交叉的第二部分之间的互电容，所述第二电极的所述第二部分被配置为不接收所述第二驱动信号。

公开(公告)号：US20230051918A1

公开(公告)日：2023-02-16

申请号：US17750566

申请日：2022-05-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Woong KIM ,  Oh Jo KWON ,  Kyung Tea PARK ,  Keum Dong JUNG ,  Sang Hyun HEO

IPC: G06F3/044 ,  G06F3/041 ,  H03M1/66

Abstract: An input sensing unit includes a touch sensing unit, which includes a plurality of driving electrodes, a plurality of sensing electrodes, and a driving signal generating unit which provides driving signals to the driving electrodes. The sensing electrodes are insulated from and intersect the driving electrodes. The driving signal generating, unit includes touch drivers connected to driving electrodes and a digital-to-analog converter configured to provide a first signal or a second signal, and each of the touch drivers is connected to a preset number of driving electrodes among the driving electrodes.

公开(公告)号：US20230073395A1

公开(公告)日：2023-03-09

申请号：US17986675

申请日：2022-11-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Gun MA ,  Oh Jo KWON ,  Ji Woong KIM ,  Jun Yong SONG ,  Seong Joo LEE ,  Sang Hyun HEO

IPC: G09G3/32

Abstract: A digital-analog converter of the disclosure converts digital image data to generate analog data signals. The digital-analog converter includes a voltage divider which generates a plurality of gamma reference voltages based on a first reference voltage and a second reference voltage; a global ramp including a plurality of gamma decoders which generates a plurality of global gamma voltages based on the gamma reference voltages; a decoder which selects one of the global gamma voltages according to the digital image data to generate the analog data signals; and a ramp controller which turns off at least some of the gamma decoders based on the digital image data.

公开(公告)号：US20130300705A1

公开(公告)日：2013-11-14

申请号：US13684868

申请日：2012-11-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Nam-Hee GOO ,  Ji Woong KIM ,  Chul KIM ,  Yu-Han BAE ,  Byoung Jun LEE

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G02B27/22 ,  G02F1/13338 ,  G02F1/13471 ,  G06F3/0412

Abstract: A touch barrier panel having a touch sensing capability and a 3-dimensional image display capability is disposed on a display panel such that manufacturing cost may be reduced and the thickness thereof is relatively thin. Also, the negative liquid crystal that is not affected by the vertical electric field is used such that a mode change speed and response speed may be improved.

Abstract translation: 具有触摸感测能力和3维图像显示能力的触摸屏障板设置在显示面板上，使得制造成本可以降低并且其厚度相对较薄。 而且，使用不受垂直电场影响的负极液晶，从而可以提高模式变化速度和响应速度。

公开(公告)号：US20230072385A1

公开(公告)日：2023-03-09

申请号：US17702268

申请日：2022-03-23

Applicant: Samsung Display Co., LTD.

Inventor： Ji Woong KIM ,  Hyung Gun MA ,  Kyung Tea PARK ,  Seong Joo LEE ,  Keum Dong JUNG ,  Sang Hyun HEO

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/32

Abstract: A sensor device includes first sensors; second sensors and the first sensors of mutual capacitance; a sensor transmitter electrically connected to the first sensors, the sensor transmitter supplying driving signals to the first sensors; a sensor receiver electrically connected to the second sensors, the sensor receiver receiving sensing signals from the second sensors, the sensor receiver demodulating the sensing signals by using demodulation clock signals; and a signal generator generating a basic clock signal, and generating the driving signals and the demodulation clock signals to be synchronized with the basic clock signal.

公开(公告)号：US20230031695A1

公开(公告)日：2023-02-02

申请号：US17671969

申请日：2022-02-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyung Gun MA ,  Ji Woong KIM ,  Jun Yong SONG ,  Seong Joo LEE ,  Keum Dong JUNG ,  Sang Hyun HEO

IPC: G09G3/3266 ,  H01L25/18

Abstract: A display device includes a display panel including pixels connected to scan lines and data lines, and connection line connected to the scan lines, and a scan driver which drives scan lines. The scan driver includes a scan signal output circuit which outputs a first output signal as a scan signal to a first output line and outputs a second output signal to a second output line, a signal distribution circuit which outputs the first output signal to a first or third connection line and outputs the second output signal to a second or fourth connection line in response to first and second distribution control signals, and a scan-off circuit which outputs gate-off level to at least one of the scan lines in response to first and second scan-off control signals.

公开(公告)号：US20240241598A1

公开(公告)日：2024-07-18

申请号：US18469714

申请日：2023-09-19

Applicant: SAMSUNG DISPLAY CO., LTD. ,  Research & Business Foundation Sungkyunkwan University

Inventor： Ji Woong KIM ,  Kang Yoon LEE ,  Oh Jo KWON ,  Dong Gyu KIM ,  Chang Hyeon KIM

IPC: G06F3/041 ,  G06F3/044 ,  H03K17/96

CPC classification number: G06F3/04166 ,  G06F3/044 ,  H03K17/962

Abstract: A touch detection device supplies driving signals generated based on orthogonal carriers and a CDMA scheme to driving electrodes. A touch driving circuit drives the driving electrodes in groups including a first group and a second group, supplies first driving signals based on a designated first frequency and first orthogonal codes set to correspond to the driving electrodes of the first group, respectively, to the driving electrodes of the first group, and supplies second multiple driving signals based on a second frequency orthogonal to the first frequency and second orthogonal codes set to correspond to the driving electrodes of the second group, respectively, to the driving electrodes of the second group.

公开(公告)号：US20230152922A1

公开(公告)日：2023-05-18

申请号：US17809091

申请日：2022-06-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keum Dong JUNG ,  Ji Woong KIM ,  Hyung Gun MA ,  Kyung Tea PARK ,  Moon Jae JEONG ,  Sang Hyun HEO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0446

Abstract: A sensor device of the present invention includes first sensors; second sensors forming capacitance with the first sensors; a multi-frequency generator generating a first frequency signal and a second frequency signal having different frequencies; a sensor transmitter supplying first driving signals based on the first frequency signal to first sensors of a first group among the first sensors, supplying second driving signals based on the second frequency signal to first sensors of a second group among the first sensors, and simultaneously supplying the first driving signals and the second driving signals; and a sensor receiver simultaneously receiving sensing signals from the second sensors.

公开(公告)号：US20230061354A1

公开(公告)日：2023-03-02

申请号：US17721465

申请日：2022-04-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kyung Tea PARK ,  Ji Woong KIM ,  Hyung Gun MA ,  Seong An PARK ,  Seong Joo LEE ,  Tae Hun LEE ,  Sang Hyun HEO

IPC: G09G3/32 ,  H03F3/70

Abstract: An analog front-end includes a (1-1)-th charge amplifier configured to differentially amplify a first and second sensing signals provided to a (1-1)-th input terminal and a (1-2)-th input terminal, respectively, and output a (1-1)-th differential signal. A (1-2)-th charge amplifier is configured to differentially amplify the second sensing signal and a third sensing signal provided to a (1-3)-th input terminal and a (1-4)-th input terminal, respectively, and output a (1-2)-th differential signal. A second charge amplifier is configured to differentially amplify the (1-1)-th differential signal and the (1-2)-th differential signal provided to a (2-1)-th input terminal and a (2-2)-th input terminal, respectively, and output a (2-1)-th differential signal and a (2-2)-th differential signal. A demodulation circuit is configured to filter the (2-1)-th differential signal and the (2-2)-th differential signal and output demodulated differential signals. An analog-to-digital converter is configured to output a sensing value based on the demodulated differential signals.

公开(公告)号：US20200380919A1

公开(公告)日：2020-12-03

申请号：US16821761

申请日：2020-03-17

Applicant: Samsung Display Co., Ltd.

Inventor： Young Soo HWANG ,  Ji Woong KIM

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A display device including multiple displays is provided. The display device includes a first display including first pixels; a second display including second pixels; a first driver configured to drive the first display; a second driver configured to drive the second display; a controller configured to control the first and second drivers; a first power supply configured to supply first power to the first and second displays; and a second power supply configured to supply second power to the first and second displays. The second power supply includes a first voltage source configured to generate a first voltage; a second voltage source configured to generate a second voltage; a first switch configured to couple the first display to any one of the first and second voltage sources; and a second switch configured to couple the second display to one of the first and second voltage sources.