公开(公告)号：US20170140737A1

公开(公告)日：2017-05-18

申请号：US15207522

申请日：2016-07-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sungyeon CHO ,  Taejin KIM ,  Hui NAM ,  Myungho LEE

IPC: G09G5/37 ,  G06F1/16

CPC classification number: G09G5/37 ,  G06F1/1652 ,  G09G3/001 ,  G09G2300/0413 ,  G09G2320/029 ,  G09G2340/0407 ,  G09G2340/0464 ,  G09G2340/14 ,  G09G2360/144 ,  G09G2360/145 ,  G09G2380/02

Abstract: A display device includes a housing, a flexible display panel, a light receiving sensor, and an area calculator. The flexible display panel is coupled to the housing and displays a reference image and an output image. The flexible display panel has an exposed area with a size that varies with movement of the flexible display panel in a first direction relative to the housing. The sensor senses the reference image and generates sensing data based on the reference image. The area calculator calculates the exposed area of the flexible display panel based on the sensing data.

公开(公告)号：US20240016003A1

公开(公告)日：2024-01-11

申请号：US18370868

申请日：2023-09-20

Applicant: Samsung Display Co., LTD.

Inventor： Hui NAM ,  Hae-Kwan SEO

IPC: H10K59/121 ,  G09G3/20 ,  H10K59/35 ,  H10K59/131

CPC classification number: H10K59/1213 ,  G09G3/2003 ,  H10K59/35 ,  H10K59/131 ,  G09G2300/0426 ,  H01L27/1214

Abstract: A display device includes: scan lines extending in a first direction; first data lines, second data lines, and third data lines extending in a second direction; a first driving unit connected to the scan lines and the first data lines; a first light emitting unit connected to the first driving unit; a second driving unit connected to the scan lines and the second data lines; a second light emitting unit connected to the second driving unit; a third driving unit connected to the scan lines and the second data lines; and a third light emitting unit connected to the third driving unit. The first light emitting unit overlaps the second driving unit or the third driving unit, the second light emitting unit overlaps the first driving unit or the third driving unit, and the third light emitting unit overlaps the first driving unit or the second driving unit.

公开(公告)号：US20220270552A1

公开(公告)日：2022-08-25

申请号：US17283430

申请日：2019-08-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jin Young ROH ,  Hui NAM ,  Se Hyuk PARK ,  Hyo Jin LEE

IPC: G09G3/3266

Abstract: A display device includes a display panel including a plurality of pixels each coupled to a write scan line, a compensation scan line, an initialization scan line, a bypass scan line, and a data line; and a scan driver configured to supply i (where i is a natural number) write scan pulses, compensation scan pulses, initialization scan pulses, and bypass scan pulses to the write scan line, the compensation scan line, the initialization scan line, and the bypass scan line, respectively, during a first period corresponding to one frame period, and to supply j (where j is a natural number other than i) write scan pulses to the write scan line during each of frame periods of a second period including a plurality of consecutive frame periods.

公开(公告)号：US20220130325A1

公开(公告)日：2022-04-28

申请号：US17436869

申请日：2020-02-25

Applicant: Samsung Display Co., LTD.

Inventor： Hyojin LEE ,  Sehyuk PARK ,  Hui NAM

IPC: G09G3/32 ,  H01L27/15 ,  H01L33/24 ,  H01L33/44

Abstract: A pixel includes a switching transistor transmitting a data voltage to a first node, a storage capacitor electrically connected between a first power supply line and the first node and storing the data voltage, first and second driving transistors electrically connected to the first power supply line, the first node, and a second node, and first and second light emitting elements electrically connected between the second node and a second power supply line. An anode of the first light emitting element and a cathode of the second light emitting element are electrically connected to the second node, a cathode of the first light emitting element and an anode of the second light emitting element are electrically connected to the second power supply line, the first driving transistor is a P-type transistor, and the second driving transistor is an N-type transistor.

公开(公告)号：US20220059034A1

公开(公告)日：2022-02-24

申请号：US17515742

申请日：2021-11-01

Applicant: Samsung Display Co., Ltd.

Inventor： HYOJIN LEE ,  Sehyuk PARK ,  Jinyoung ROH ,  Geunjeong PARK ,  EUNHO LEE ,  Hui NAM ,  BONGHYUN YOU

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.

公开(公告)号：US20210343245A1

公开(公告)日：2021-11-04

申请号：US17379929

申请日：2021-07-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hui NAM ,  Hyo Jin LEE ,  Jinyoung ROH ,  Sehyuk PARK

IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver outputs a data write gate signal having a corresponding active level and a data initialization gate signal having a corresponding active level to the pixel in a writing frame, outputs the data write gate signal not having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a holding frame and outputs the data write gate signal having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a writing compensation frame. The data driver outputs a data voltage to the pixel. The emission driver outputs an emission signal to the pixel.

公开(公告)号：US20210312871A1

公开(公告)日：2021-10-07

申请号：US17347468

申请日：2021-06-14

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk PARK ,  Hyojin LEE ,  Hui NAM ,  Jinyoung ROH ,  Bong Hyun YOU ,  Eunho LEE

IPC: G09G3/3275

Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.

公开(公告)号：US20210056895A1

公开(公告)日：2021-02-25

申请号：US16943293

申请日：2020-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Hyo Jin LEE ,  Joon-Chul GOH ,  Sangan KWON ,  Hui NAM ,  Jin Young ROH ,  Sehyuk PARK

IPC: G09G3/325 ,  G09G3/3275

Abstract: A pixel circuit includes a main-circuit that controls an organic light-emitting element by controlling a driving current to flow into the organic light-emitting element and a sub-circuit including a first compensation transistor including a gate terminal which receives a first gate signal, a second compensation transistor including a gate terminal which receives a second gate signal, and an initialization transistor including a gate terminal which receives an initialization signal. Here, in a low-frequency driving mode, a driving frequency of the first gate signal is N hertz (Hz), a driving frequency of the initialization signal is N Hz, a driving frequency of the second gate signal is M Hz, the first compensation transistor and the initialization transistor are turned on during a first time duration in N non-light-emitting periods per second, and the second compensation transistor is turned on during a second time duration in M non-light-emitting periods per second.

公开(公告)号：US20200211471A1

公开(公告)日：2020-07-02

申请号：US16721564

申请日：2019-12-19

Applicant: Samsung Display Co., Ltd.

Inventor： Sehyuk PARK ,  Hyojin LEE ,  Hui NAM ,  Jinyoung ROH ,  Bong Hyun YOU ,  Eunho LEE

IPC: G09G3/3275

Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.

公开(公告)号：US20170330518A1

公开(公告)日：2017-11-16

申请号：US15434590

申请日：2017-02-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dong-Hoon LEE ,  Hui NAM ,  Byung-Sun KIM ,  Jae-Hyeon JEON ,  Myung-Ho LEE

IPC: G09G3/3291 ,  G09G3/20 ,  G09G5/391

CPC classification number: G09G3/3291 ,  G06F1/3265 ,  G09G3/2003 ,  G09G3/3233 ,  G09G5/391 ,  G09G2300/0443 ,  G09G2310/027 ,  G09G2330/022 ,  G09G2340/0407

Abstract: A display apparatus includes a display and a controller. The display includes a plurality color sub-pixels, each including an organic light emitting diode and a driving transistor to drive the organic light emitting diode. The driving transistor drives in a saturation region for a normal mode and in a linear region for a standby mode. The controller controls a first portion of preset-color sub-pixels among the color sub-pixels to emit light and a second portion of the preset-color sub-pixels among the color sub-pixels to not emit light in the standby mode.