公开(公告)号：US11910647B2

公开(公告)日：2024-02-20

申请号：US17368832

申请日：2021-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyunae Park ,  Sunghwan Kim ,  Daehyun Kim

IPC: G09G3/3233 ,  H10K59/121 ,  G09G3/3291 ,  G09G3/3266 ,  H10K59/131

CPC classification number: H10K59/1213 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  H10K59/1216 ,  H10K59/131 ,  G09G2330/08

Abstract: A display apparatus, which may prevent a defect of a pixel due to external electrostatic discharge, includes: a first pixel including a first node; a second pixel neighboring the first pixel and including a second node; and an always-off thin-film transistor including a first electrode, a second electrode, and a gate electrode, the first electrode being connected to the first node of the first pixel, the second electrode being connected to the second node of the second pixel, in which a turn-off voltage is applied to the gate electrode.

公开(公告)号：US11844248B2

公开(公告)日：2023-12-12

申请号：US17135704

申请日：2020-12-28

Applicant: Samsung Display Co., Ltd.

Inventor： Sunghwan Kim ,  Wonkyu Kwak ,  Junghoon Shim

IPC: G09G3/32 ,  H10K59/131 ,  H10K59/35

CPC classification number: H10K59/131 ,  H10K59/353

Abstract: A display panel includes: a main display area; a component area including a transmission area; a peripheral area outside the main display area; a substrate; main display elements on the substrate to correspond to the main display area; main pixel circuits respectively connected to the main display elements; auxiliary display elements on the substrate to correspond to the component area; auxiliary pixel circuits respectively connected to the auxiliary display elements; a driving voltage line to apply a driving voltage to the main pixel circuits; a data line to apply a data signal to the main pixel circuits; a bottom metal layer between the substrate and the auxiliary pixel circuits at the component area; and a bias wire connected to the bottom metal layer, and located at the main display area.

公开(公告)号：US11765952B2

公开(公告)日：2023-09-19

申请号：US17935800

申请日：2022-09-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sunghwan Kim ,  Jinwoo Park ,  Junghoon Shim

IPC: H01L27/32 ,  G09G3/3233 ,  H10K59/131 ,  H04N23/57 ,  H10K50/822 ,  H10K50/844 ,  H10K59/35 ,  H10K59/122 ,  H10K59/124

CPC classification number: H10K59/131 ,  G09G3/3233 ,  G09G2300/0439 ,  G09G2300/0809 ,  G09G2340/0407 ,  H04N23/57 ,  H10K50/822 ,  H10K50/844 ,  H10K59/122 ,  H10K59/124 ,  H10K59/35

Abstract: A display device includes: a first display area comprising main sub-pixels; a second display area comprising pixel groups spaced apart from each other and a transmission portion between the pixel groups, the second display area having a different resolution from that of the first display area; and extension lines between two pixel groups adjacent to each other in a first direction among the pixel groups and extending in the first direction, wherein each of the pixel groups comprises a plurality of auxiliary sub-pixels and a plurality of horizontal lines electrically connected to the plurality of auxiliary sub-pixels and extending in the first direction, and the extension lines are electrically connected to the horizontal lines included in each of the two pixel groups, and a number of the extension lines is less than a number of the horizontal lines.

公开(公告)号：US11551604B2

公开(公告)日：2023-01-10

申请号：US17382471

申请日：2021-07-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sunghwan Kim ,  Jung Hoon Shim

IPC: G09G3/3266 ,  G09G3/20

Abstract: A scan driver of a display device includes a plurality of stages. Each stage includes a clock line configured to receive a first clock signal and a second clock signal having different phases, a shared input circuit configured to transfer an input signal to a shared control node, a first output circuit coupled to the shared control node, configured to transfer a voltage of the shared control node to a first control node, and configured to output a first scan signal in response to a voltage of the first control node and the first clock signal, and a second output circuit coupled to the shared control node, configured to transfer the voltage of the shared control node to a second control node, and configured to output a second scan signal in response to a voltage of the second control node and the second clock signal.

公开(公告)号：US11532272B2

公开(公告)日：2022-12-20

申请号：US17198068

申请日：2021-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： Sunghwan Kim ,  Eunju Kim

IPC: G09G3/3233 ,  H01L27/32

Abstract: A pixel includes a light-emitting device, a driving TFT for controlling a magnitude of a current from a power line to the light-emitting device according to a gate-source voltage, a storage capacitor disposed between the power line and a gate of the driving TFT, a scan TFT to transfer a data voltage to a source of the driving TFT in response to a first signal, first and second compensation TFTs serially connected between a drain and the gate of the driving TFT, a gate initialization TFT to apply a first voltage to the gate of the driving TFT in response to a second signal, an anode initialization TFT to apply a second voltage to an anode of the light-emitting device in response to a third signal, and a shield capacitor disposed between a node between the first and second compensation TFTs and the power line or a second voltage line.

公开(公告)号：US11468838B2

公开(公告)日：2022-10-11

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: G09G3/3233 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/12 ,  G01N11/02 ,  G01N27/416 ,  G01N33/18 ,  H01L29/786

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：US20220140037A1

公开(公告)日：2022-05-05

申请号：US17368832

申请日：2021-07-07

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyunae PARK ,  Sunghwan Kim ,  Daehyun Kim

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display apparatus, which may prevent a defect of a pixel due to external electrostatic discharge, includes: a first pixel including a first node; a second pixel neighboring the first pixel and including a second node; and an always-off thin-film transistor including a first electrode, a second electrode, and a gate electrode, the first electrode being connected to the first node of the first pixel, the second electrode being connected to the second node of the second pixel, in which a turn-off voltage is applied to the gate electrode.

公开(公告)号：US20210376044A1

公开(公告)日：2021-12-02

申请号：US17201053

申请日：2021-03-15

Applicant: Samsung Display Co., Ltd.

Inventor： Sunghwan Kim ,  Wonkyu Kwak

IPC: H01L27/32

Abstract: A display apparatus in which a display area is expanded so that an image may be displayed even in an area where components are arranged\is provided. The display apparatus includes a substrate including a first area in which a transmissive portion is located and a second area adjacent to the first area, a pixel circuit unit arranged in the first area and including a pixel circuit, a first pixel electrode arranged in the first area and electrically connected to the pixel circuit, the first pixel electrode having a first portion overlapping the pixel circuit unit and a second portion not overlapping the pixel circuit unit, and a metal pattern layer arranged between the substrate and the first pixel electrode and corresponding to the second portion.

公开(公告)号：US10650739B2

公开(公告)日：2020-05-12

申请号：US15704578

申请日：2017-09-14

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 ,  H01L29/786

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：US10121439B2

公开(公告)日：2018-11-06

申请号：US15233851

申请日：2016-08-10

Applicant: Samsung Display Co., Ltd.

Inventor： Sunghwan Kim ,  Junhyun Park ,  Kyoungju Shin ,  Woongsik Choi

IPC: G09G3/36

Abstract: A display device includes: a display panel; and a gate driving circuit, a kth driving stage from among driving stages for outputting a kth gate signal from among gate signals, where k is a natural number of two or more, including: at least one output transistor including a control electrode connected to a first node, an input electrode to receive a clock signal, and an output electrode to output an output signal; a first control transistor to output an activation signal to the first node before the kth gate signal is outputted; a capacitor to boost a voltage of the first node after the activation signal is provided to the first node; second and third control transistors connected in series between the first node and a voltage input terminal; and a first intermediate node between the second control transistor and the third control transistor for receiving the output signal.