公开(公告)号：US11830417B2

公开(公告)日：2023-11-28

申请号：US17965576

申请日：2022-10-13

Applicant: Samsung Display Co., LTD.

Inventor： Tae Gon Im ,  Jong Jae Lee ,  Dae Gwang Jang

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/027 ,  G09G2310/0262 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08

Abstract: A display device includes: a pixel unit including a plurality of pixels; a data driver configured to supply a data voltage to the pixels through data lines based on a source output enable signal; and a reference voltage controller configured to supply a reference voltage to the pixels through reference voltage lines, wherein each of the pixels includes a light emitting element between a first power source line and a second power source line, and wherein the reference voltage controller is configured to compensate for the reference voltage based on the source output enable signal, and to supply a compensated reference voltage to an anode electrode of the light emitting element.

公开(公告)号：US11790857B2

公开(公告)日：2023-10-17

申请号：US17741766

申请日：2022-05-11

Applicant: Samsung Display Co., LTD.

Inventor： Soo Yeon Kim ,  Tae Gon Im ,  Jong Jae Lee ,  Dae Gwang Jang

IPC: G09G3/3275

CPC classification number: G09G3/3275 ,  G09G2310/0291 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A display device includes a display panel including data lines and pixels electrically connected to the data lines. The data driver supplies data signals to the data lines. The data driver includes: a first output buffer electrically connected to a first data line of the data lines, the first output buffer outputting a first data signal to the first data line; and a first comparator electrically connected to an output terminal of the first output buffer, the first comparator comparing a first slew rate of the first data signal with a first reference slew rate.

公开(公告)号：US10762816B2

公开(公告)日：2020-09-01

申请号：US16045918

申请日：2018-07-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jae Han Lee ,  Myeong Su Kim ,  Sun Koo Kang ,  Bo Yeon Kim ,  Dong Won Park ,  Tae Gon Im ,  Jung Hwan Cho

IPC: G09G3/20 ,  G09G5/00

Abstract: A display device may include a timing controller, a data driver and a plurality of pixels. The timing controller supplies a clock training pattern over a data/clock signal line in a first time period, and supplies pixel/control data over the data/clock signal line in a second time period. The data driver generates a clock signal, using the clock training pattern, in the first period, and generate a plurality of data voltages based on the plurality of pixel data, using the clock signal, in the second period. The plurality of pixels receive the plurality of data voltages and emit corresponding light. During the second period, the data driver outputs a feedback signal to the timing controller indicating that the locking of the clock signal has failed. The timing controller re-supplies the clock training pattern in response to the feedback signal.

公开(公告)号：US20190340989A1

公开(公告)日：2019-11-07

申请号：US16397263

申请日：2019-04-29

Applicant: SAMSUNG DISPLAY CO, LTD

Inventor： JAE-HAN LEE ,  Sun-Koo Kang ,  Soo Yeon Kim ,  Tae Gon Im ,  Moon Shik Kang ,  Jung Hwan Cho

IPC: G09G3/36 ,  G09G3/00

Abstract: A display device includes a display panel including data lines, gate lines, and pixels connected to the data lines and the gate lines, a data driver configured to drive the data lines, a plurality of gate drivers, each configured to drive a corresponding portion of the gate lines, and a plurality of feedback lines connected to one of the data lines at a plurality of measurement positions corresponding to the plurality of gate drivers. The data driver applies a test voltage to the data line, receives the test voltage as a plurality of feedback voltages through the plurality of feedback lines, and determines gate shift amounts at the plurality of measurement positions corresponding to the plurality of gate drivers based on the plurality of feedback voltages. The gate drivers apply gate signals to the gate lines that are shifted by the determined gate shift amounts.

公开(公告)号：US09370066B2

公开(公告)日：2016-06-14

申请号：US14255108

申请日：2014-04-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Song Yi Han ,  Tae Gon Im

IPC: H05B37/00 ,  H05B33/08

CPC classification number: H05B33/0827 ,  H05B33/0812 ,  Y02B20/345

Abstract: A light emitting device includes a light emitting unit and a constant current controller. The light emitting unit includes at least one LED string. The constant current controller is connected to a cathode terminal of the LED string and controls a driving current flowing through the LED string. The constant current controller includes a transistor connected to the cathode terminal of the LED string. A switching unit and a sensing resistor are connected to the transistor. The switching unit connects and disconnects between the sensing resistor and the transistor.

Abstract translation: 发光器件包括发光单元和恒流控制器。 发光单元包括至少一个LED串。 恒流控制器连接到LED串的阴极端子，并控制流过LED串的驱动电流。 恒流控制器包括连接到LED串的阴极端子的晶体管。 开关单元和感测电阻器连接到晶体管。 开关单元连接和断开感测电阻和晶体管之间的连接。