公开(公告)号：US11765940B2

公开(公告)日：2023-09-19

申请号：US17588734

申请日：2022-01-31

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim Song ,  Byung Chang Yu ,  Gyung Soon Park

IPC: G09G3/3233 ,  H10K59/121 ,  H10K59/131

CPC classification number: H10K59/1216 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0243 ,  G09G2310/08 ,  H10K59/131

Abstract: A light emitting display device includes: a first display area including a first light-emitting element and a first pixel circuit unit; and a second display area including a second light-emitting element disposed to overlap a driving unit and a second pixel circuit unit which drives the second light-emitting element, where the first pixel circuit unit further include a first boost capacitor.

公开(公告)号：US11972726B2

公开(公告)日：2024-04-30

申请号：US17990813

申请日：2022-11-21

Applicant: Samsung Display Co., LTD.

Inventor： Byung Chang Yu ,  Hyun Joon Kim ,  Hae Min Kim ,  Myunghoon Park ,  Dong-Hoon Lee

IPC: G09G3/3233 ,  H10K59/131

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0626 ,  H10K59/131

Abstract: A light emitting display device includes a light emitting diode including a first electrode and a second electrode to which a driving voltage is applied, a driving transistor, a second transistor receiving a data voltage and connected to a D node, a storage capacitor connected to the driving transistor and an N node, a hold capacitor connected to the D node and the N node, a third transistor connected to the D node and the driving transistor, a fourth transistor receiving a reference voltage and connected to the driving transistor, a fifth transistor connected to the driving transistor and the N node, a sixth transistor receiving a driving low voltage and connected to the driving transistor, a seventh transistor receiving an initialization voltage and connected the driving transistor, and an eighth transistor connected to the driving transistor and the first electrode of the light emitting diode.

公开(公告)号：US12198628B2

公开(公告)日：2025-01-14

申请号：US18226912

申请日：2023-07-27

Applicant: Samsung Display Co., LTD.

Inventor： Kyung Hoon Chung ,  Byung Chang Yu

IPC: G09G3/3233

Abstract: A light emitting display device includes: a light emitting element including an anode connected to a first line; a first transistor; a second transistor including a first electrode connected to a data line, and a second electrode connected to a gate electrode of the first transistor; a third transistor including a first electrode connected to the first line, and a second electrode connected to a first electrode of the first transistor; a fourth transistor including a second electrode connected to the gate electrode; a sixth transistor including a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a second line; a first capacitor including a first electrode connected to the gate electrode and a second electrode connected to the second electrode of the first transistor; and a second capacitor including a second electrode connected to the second electrode of the first transistor.

公开(公告)号：US11893926B2

公开(公告)日：2024-02-06

申请号：US18110549

申请日：2023-02-16

Applicant: Samsung Display Co., LTD.

Inventor： Byung Chang Yu ,  Hae Min Kim ,  Myunghoon Park ,  Dong-Hoon Lee ,  Kyung Hoon Chung

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275

Abstract: Embodiments provide an emissive display device including a driving transistor including a first electrode, a second electrode, and a driving gate electrode, a second transistor including a first electrode electrically connected to a data line, a transfer capacitor including a first transfer electrode electrically connected to a second electrode of the second transistor and a second transfer electrode electrically connected to the driving gate electrode; a fifth transistor electrically connecting the first electrode of the driving transistor and the driving gate electrode; a ninth transistor including a second electrode electrically connected to the second electrode of the driving transistor; and a light emitting diode including an anode and a cathode receiving an output current outputted to the second electrode of the driving transistor.

公开(公告)号：US11790841B2

公开(公告)日：2023-10-17

申请号：US18073311

申请日：2022-12-01

Applicant: Samsung Display Co., Ltd.

Inventor： Byung Chang Yu ,  Hyun Joon Kim ,  Hae Min Kim ,  Myung Hoon Park ,  Dong Hoon Lee

IPC: G09G3/32 ,  G09G3/3233

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0233 ,  G09G2330/021

Abstract: A pixel and a display device including the same are disclosed. The pixel includes a light emitting element, first through seventh transistors, and a first capacitor. The first transistor is connected between first and second nodes. The second transistor is connected between a data line and a fourth node and configured to be turned on by a first scan signal. The third transistor is connected between the first node and a third node and configured to be turned on by a second scan signal. The fourth transistor is connected between the fourth node and a third power line and configured to be turned on by a third scan signal. The fifth transistor is connected between the third node and the third power line and configured to be turned on by a fourth scan signal. The sixth transistor is connected between the first node and a fifth node and configured to be turned off by an emission control signal. The seventh transistor is connected between the second node and the second power line and configured to be turned off in response to the emission control signal. The first capacitor is connected between the third and fourth nodes.

公开(公告)号：US11295673B2

公开(公告)日：2022-04-05

申请号：US17070438

申请日：2020-10-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jun Hyun Park ,  Bon Yong Koo ,  Byung Chang Yu ,  Yu Jin Lee ,  Kyung Hoon Chung

IPC: G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device includes a display panel including a plurality of pixels, a timing controller which generates an emission start signal, an emission driver which supplies an emission control signal to the plurality of pixels based on the emission start signal received from the timing controller, a first scan driver which supplies a first scan signal to the plurality of pixels, a second scan driver which supplies a second scan signal to the plurality of pixels, and a data driver which supplies a data signal to the plurality of pixels. The timing controller adjusts a period in which the emission start signal is supplied based on a change of a driving frequency.