公开(公告)号：US20240331602A1

公开(公告)日：2024-10-03

申请号：US18616442

申请日：2024-03-26

Applicant: Samsung Display Co., LTD.

Inventor： YEONKYUNG KIM ,  KWIHYUN KIM ,  DONGWOO KIM

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0275 ,  G09G2310/0297 ,  G09G2310/08

Abstract: A pixel circuit includes a first transistor connected to a gate node, receiving a first power voltage, and connected to a second node, a second transistor receiving a data writing gate signal, receiving a data voltage, and connected to a first node, a third transistor receiving a compensation gate signal, connected to the gate node, and connected to the second node, a fourth transistor receiving an initialization gate signal, receiving an initialization voltage, and connected to the gate node, a fifth transistor receiving the initialization gate signal, connected to the first node, and connected to an anode node, a sixth transistor receiving an emission signal, connected to the second node, and connected to the anode node, and a light emitting element connected to the anode node and receiving a second power voltage.

公开(公告)号：US20240242671A1

公开(公告)日：2024-07-18

申请号：US18501031

申请日：2023-11-03

Applicant: Samsung Display Co., Ltd.

Inventor： YEONKYUNG KIM ,  KWIHYUN KIM ,  DONGWOO KIM

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2330/021

Abstract: A pixel circuit is disclosed that includes first through sixth transistors, first and second capacitors, and a light emitting element. A gate electrode of the second transistor receives a first gate signal. A gate electrode of the third transistor receive a second gate signal. Gate electrodes of each of the fourth and fifth transistors receive a third gate signal. A gate electrode of the sixth transistor receives an emission signal. First electrodes of the first transistor and the first capacitor each receive a first power supply voltage. A cathode electrode of the light emitting element receives a second power supply voltage. A first electrode of the fourth transistor receives an initialization voltage.

公开(公告)号：US20240130049A1

公开(公告)日：2024-04-18

申请号：US18235001

申请日：2023-08-17

Applicant: Samsung Display Co., LTD.

Inventor： DONGWOO KIM ,  GEUMCHEOL KIM ,  MYUNGGIL CHOI

IPC: H05K3/32

CPC classification number: H05K3/326 ,  H05K2203/02 ,  H05K2203/17

Abstract: A bending apparatus includes a first height control part which ascends in a first direction and descends in a direction opposite to the first direction, a second height control part spaced apart from the first height control part in a second direction crossing the first direction, and which ascends in the first direction and descends in the direction opposite to the first direction, a first rotation part attached to the first height control part, and which rotates with respect to a rotation axis, a second rotation part attached to the second height control part, and which rotates with respect to the rotation axis, and a supporting part disposed between the first and second rotation parts, where a first end of the supporting part is attached to the first rotation part, and a second end of the supporting part is attached to the second rotation part.

公开(公告)号：US20230041389A1

公开(公告)日：2023-02-09

申请号：US17734387

申请日：2022-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： DONGWOO KIM ,  JONG-HOON PARK ,  Boyoung KIM ,  MYUNGGIL CHOI

IPC: H04M1/02 ,  H05K5/02

Abstract: A display module bending apparatus includes: a stage on which a display module including a display panel and a circuit board is seated; a bending arm which fixes the circuit board and bending the circuit board based on a first reference; a first measuring unit which measures first information; a second measuring unit disposed on the stage and which measures second information; and a control unit which compensates the first reference based on the first information and the second information.

公开(公告)号：US20220199960A1

公开(公告)日：2022-06-23

申请号：US17653895

申请日：2022-03-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SUNGJAE MOON ,  DONGWOO KIM ,  JUNHYUN PARK ,  KANGMOON JO

IPC: H01L51/52 ,  H01L27/32

Abstract: A display device includes a first substrate including a display area and a peripheral area outside the display area, pixels arranged in the display area and each including an emission area defined by a non-emission area, a thin-film encapsulation layer covering the pixels and including at least one inorganic encapsulation layer and at least one organic encapsulation layer, a pattern layer above the thin-film encapsulation layer, the pattern layer including a first light-blocking pattern shielding at least a portion of the non-emission area, and a second substrate facing the first substrate and including a second light-blocking pattern shielding at least a portion of the non-emission area.

公开(公告)号：US20210293771A1

公开(公告)日：2021-09-23

申请号：US17341683

申请日：2021-06-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DONGWOO KIM ,  SUNGHWAN KIM ,  KYOUNGJU SHIN ,  CHEOL-GON LEE ,  SANG-UK LIM

IPC: G01N33/18 ,  G01N27/416 ,  G01N11/02

Abstract: An organic light emitting display device includes a plurality of pixels. Each of the pixels includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor. The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.

公开(公告)号：US20200265782A1

公开(公告)日：2020-08-20

申请号：US16869789

申请日：2020-05-08

Applicant: SAMSUNG DISPLAY CO., LTD

Inventor： DONGWOO KIM ,  SUNGHWAN KIM ,  KYOUNGJU SHIN ,  CHEOL-GON LEE ,  SANG-UK LIM

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/12

Abstract: An organic light emitting display device includes a plurality of pixels. Each of the pixels Includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes, a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor, The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.