公开(公告)号：US20230189575A1

公开(公告)日：2023-06-15

申请号：US18076197

申请日：2022-12-06

Applicant: Samsung Display Co., Ltd.

Inventor： Simbum Yuk ,  Minjae Kim ,  Minhee Kim ,  Taehoon Kim ,  Joonhyung Park ,  Hanjun Yu ,  Dokyung Youn ,  Changhun Lee ,  Kangseob Jeong

IPC: H10K59/122 ,  H10K59/88 ,  H10K50/86

CPC classification number: H01L27/3246 ,  H01L27/3223 ,  H01L51/5284

Abstract: A display apparatus includes: a first pixel electrode in a display area; a pixel defining layer with a first pixel opening defined in the pixel defining layer exposing a center of the first pixel electrode; an emission layer over the first pixel electrode and configured to emit light in a first wavelength band; an opposite electrode over the emission layer; a second substrate over the first substrate such that the opposite electrode is between the first substrate and the second substrate; a bank over a bottom surface of the second substrate in a direction to the first substrate, a first opening defined in the bank overlapping with the first pixel opening and a first additional opening defined in the bank overlapping with the peripheral area, a first quantum dot layer in the first opening; and a bonding member bonding the first substrate and the second substrate to each other.

公开(公告)号：US11514866B2

公开(公告)日：2022-11-29

申请号：US17358083

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Junhee Moon ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/3275 ,  G09G3/3266

Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.

公开(公告)号：US11469287B2

公开(公告)日：2022-10-11

申请号：US16846246

申请日：2020-04-10

Applicant: Samsung Display Co., Ltd.

Inventor： Chang-Hun Lee ,  Min-Jae Kim ,  Min-Hee Kim ,  Taehoon Kim ,  Kyunghae Park ,  Joon-Hyung Park ,  Danbi Yang ,  Hanjun Yu ,  DoKyung Youn

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: The display panel includes an upper display substrate including a plurality of pixel areas and a light blocking area, a lower display substrate. The upper display substrate includes a base substrate, a barrier part overlapping the light blocking area and disposed on the base substrate, a light blocking layer including a first light blocking portion disposed on the barrier part and a second light blocking portion disposed on the same layer as the barrier part to respectively overlap the pixel areas, a reflection layer including a first reflection portion disposed on the first light blocking portion and a second reflection portion disposed on the second light blocking portion, and a light control layer overlapping the pixel areas and disposed on the reflection layer. A plurality of openings passing through the second light blocking portion and the second reflection portion are defined in each of the pixel areas.

公开(公告)号：US11450251B2

公开(公告)日：2022-09-20

申请号：US17206613

申请日：2021-03-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Kwan Seo ,  Taehoon Kim

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display panel, a data driving circuit, a scan driving circuit, and a driving controller. The driving controller receives an image signal and a control signal and controls the data and scan driving circuits to display an image on the display panel. The driving controller divides the display panel into first and second display regions based on the image signal, and outputs start and masking signals indicating starts of one frame and the second display region, respectively. First and second frames have first and second durations, respectively. The scan driving circuit sequentially drives scan lines in synchronization with the start signal and stop the driving of scan lines, corresponding to the second display region, of the scan lines, in response to the masking signal.

公开(公告)号：US11423846B2

公开(公告)日：2022-08-23

申请号：US17240111

申请日：2021-04-26

Applicant: Samsung Display Co., Ltd.

Inventor： Changnoh Yoon ,  Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Eun Sil Yun ,  Seungjae Lee

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A display device includes a display panel, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the display panel is divided into a first display region and a second display region during a multi-frequency mode and the first display region and the second display region are respectively operated at different frequencies, where the driving controller changes an operation mode to a normal mode when a still image and a moving image are simultaneously displayed in the first display region during the multi-frequency mode and the duration of the still image reaches a predetermined time.

公开(公告)号：US11410610B2

公开(公告)日：2022-08-09

申请号：US17185358

申请日：2021-02-25

Applicant: Samsung Display Co., LTD.

Inventor： Hae-Kwan Seo ,  Seongheon Cho ,  Soon-Dong Kim ,  Taehoon Kim

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3275

Abstract: A scan driving circuit of a display device includes a first output terminal electrically connected to a first scan line, a second output terminal electrically connected to a second scan line, a first masking circuit electrically connecting the first output terminal and the second output terminal and outputting, as a first scan signal, a second scan signal to the first output terminal, a driving circuit outputting the second scan signal to the second output terminal in response to clock signals and a carry signal, and a second masking circuit masking the second scan signal to a predetermined level in response to the second masking signal, wherein the first masking circuit electrically disconnects the first output terminal from the second output terminal in response to a first masking signal.

公开(公告)号：US11315457B2

公开(公告)日：2022-04-26

申请号：US17231388

申请日：2021-04-15

Applicant: Samsung Display Co., Ltd.

Inventor： Sangan Kwon ,  Jinoh Kwag ,  Soon-Dong Kim ,  Taehoon Kim ,  Hui Nam ,  Bonghyun You ,  Eun Sil Yun ,  Changnoh Yoon

IPC: G09G3/00 ,  G09G3/3275 ,  G09G3/3266 ,  G09G5/14 ,  G09G3/3233

Abstract: A display device includes a driving controller which provides a first start signal and a second start signal corresponding to an operation mode to a scan driving circuit. The scan driving circuit includes a first scan driving circuit having first dummy driving stages and first driving stages which sequentially drive scan lines corresponding to a first display region among a plurality of scan lines in synchronization with the first start signal and a second scan driving circuit having second dummy driving stages and second driving stages which sequentially drive scan lines corresponding to a second display region among the plurality of scan lines in synchronization with the second start signal. The first dummy driving stages are disposed on a first side surface of the display panel and the second dummy driving stages are disposed on a second side surface of the display panel.

公开(公告)号：US20210125553A1

公开(公告)日：2021-04-29

申请号：US17143935

申请日：2021-01-07

Applicant: Samsung Display Co., Ltd.

Inventor： Taehoon Kim ,  Jisu Na ,  Seungkyu Lee

IPC: G09G3/3225

Abstract: A display apparatus in which data signal distortion is reduced and thus is capable of accurately displaying an image includes a substrate including a display area that includes a first display area and a second display area, and a peripheral area surrounding the display area, first and second data lines respectively across the first and second display areas, main scan lines across the display area and disposed in parallel to the first and second data lines, sub scan lines across the display area and respectively connected to the main scan lines, the sub scan lines being disposed to cross the main scan lines, first data line pads connected to the first data lines, second data line pads connected to the second data lines, and scan line pads connected to the main scan lines, the first data line pads, the scan line pads, and the second data line pads being adjacent.

公开(公告)号：US20210103179A1

公开(公告)日：2021-04-08

申请号：US17064547

申请日：2020-10-06

Applicant: Samsung Display Co., Ltd.

Inventor： Jae-seung Kim ,  Kyongsub Kim ,  Tae Seop Kim ,  Taehoon Kim

IPC: G02F1/1333 ,  G02F1/1345 ,  G02F1/1339 ,  G02F1/1362

Abstract: A display substrate including a scan driving circuit, a scan line, and an insulating pattern. The scan driving circuit includes a connection electrode disposed on a plurality of insulating layers, a plurality of signal lines, and a stage circuit connected to the signal lines and overlaps a non-display area. The scan line overlaps a display area and is connected to the scan driving circuit. The insulating pattern is disposed on the insulating layers, covers the connection electrode, and makes contact with a sealant.

公开(公告)号：US10247981B2

公开(公告)日：2019-04-02

申请号：US15723925

申请日：2017-10-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gakseok Lee ,  Sunyoung Kwon ,  Taehoon Kim ,  Jihong Bae ,  Jieun Jang

IPC: G02F1/1335 ,  G02F1/135 ,  G02F1/137 ,  G02F2/02 ,  G02F1/13363

Abstract: A reflective liquid crystal display device includes a first substrate on which a plurality of pixel areas are defined, a second substrate facing the first substrate, a cholesteric liquid crystal (“CLC”) layer between the first substrate and the second substrate, a linear polarization member on the second substrate, a retardation member between the linear polarization member and the CLC layer, a light absorbing layer on the first substrate, and a light conversion member corresponding to the pixel area and interposed between the CLC layer and the light absorbing layer.