公开(公告)号：US20220020334A1

公开(公告)日：2022-01-20

申请号：US17185155

申请日：2021-02-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Won Tae KIM ,  Myeong Su KIM ,  Bo Yeon KIM ,  Jae Han LEE ,  Whee Won LEE

IPC: G09G3/3275 ,  G09G3/3225

Abstract: A display device includes a display panel including a plurality of pixels connected to data lines and sensing lines, a data driver including a plurality of buffer amplifiers which supplies a first sensing voltage to the data lines during a first sensing period and a sensor which receives a first sensing signal from the pixels through the sensing lines during the first sensing period, and a global amplifier which supplies a second sensing voltage to the data lines during a second sensing period different from the first sensing period. The sensor receives a second sensing signal corresponding to the second sensing voltage from the pixels through the sensing lines during the second sensing period, and generates compensation data based on a difference value between the first sensing signal and the second sensing signal.

公开(公告)号：US20240282235A1

公开(公告)日：2024-08-22

申请号：US18236426

申请日：2023-08-22

Applicant: Samsung Display Co., Ltd.

Inventor： Won Tae KIM ,  Bo Yeon KIM ,  Jae Han LEE

IPC: G09G3/20

CPC classification number: G09G3/2074 ,  G09G3/3208 ,  G09G2300/0819 ,  G09G2300/0823 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2320/0233 ,  G09G2354/00

Abstract: A data driving circuit is disclosed that includes an amplifier and an offset control circuit. The amplifier has an offset voltage and is configured to output a data voltage reflecting the offset voltage. The offset control circuit is configured to control, in response to an input control signal, the amplifier to output the data voltage reflecting the offset voltage in a positive direction or a negative direction. The data driving circuit may enhance the display quality of a low grayscale image.

公开(公告)号：US20170098420A1

公开(公告)日：2017-04-06

申请号：US15132547

申请日：2016-04-19

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Koo KANG ,  Tae Gon KIM ,  Kyung Ha KIM ,  Jae Han LEE

IPC: G09G3/36 ,  H03K17/687 ,  H03K5/06 ,  H03K3/356

CPC classification number: G09G3/3677 ,  G09G3/3688 ,  G09G2300/0809 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0219 ,  G09G2320/0223 ,  G11C19/28 ,  G11C27/02 ,  H03K3/356 ,  H03K5/06 ,  H03K17/6871

Abstract: A scan driver includes stages respectively located in channels, the stages outputting a sampling signal, corresponding to at least one clock signal, and a buffer unit including buffers respectively located between the stages and scan lines, the buffers each outputting a scan signal to an output terminal thereof, corresponding to the sampling signal supplied through an input terminal thereof where an ith (i is a natural number) buffer located in an ith channel is electrically coupled to at least one specific buffer located in another channel different from the ith channel.

公开(公告)号：US20190147831A1

公开(公告)日：2019-05-16

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: G09G5/00 ,  G09G3/36 ,  G09G3/3275

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：US20220367594A1

公开(公告)日：2022-11-17

申请号：US17660774

申请日：2022-04-26

Applicant: Samsung Display Co., LTD.

Inventor： Won Tae KIM ,  Jae Han LEE

IPC: H01L27/32

Abstract: A display device includes: a display panel having: a display area including a plurality of pixels; and a non-display area around the display area and including a pad area; and a chip on film attached to the pad area of the display panel, wherein the chip on film includes the base film, and a data driver on the base film, wherein the chip on film includes a first lead area overlapping the pad area and defining one end of the chip on film, wherein the first lead area includes a first-first bypass lead area, a first-second bypass lead area, a first-third bypass lead area, and a first data lead area, wherein the first data lead area is respectively between the first-first bypass lead area and the first-third bypass lead area, and between the first-second bypass lead area and the first-third bypass lead area.

公开(公告)号：US20220101799A1

公开(公告)日：2022-03-31

申请号：US17215670

申请日：2021-03-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Whee Won LEE ,  Myeong Su KIM ,  Bo Yeon KIM ,  Won Tae KIM ,  Jae Han LEE

IPC: G09G3/3291 ,  G09G3/3266

Abstract: A display device includes: a display panel including a plurality of pixels; a source driver for outputting a target initialization voltage in an analog format to the pixels through sensing lines; and a timing controller for providing the source driver with a data control signal including packet information associated with the target initialization voltage. The packet information is in a digital format. The source driver includes a digital-analog converter which generates the target initialization voltage in the analog format, based on the packet information.