公开(公告)号：US11961822B2

公开(公告)日：2024-04-16

申请号：US18062927

申请日：2022-12-07

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon Kim ,  Jung Hwan Hwang ,  Kye Uk Lee ,  Sang Jin Jeon

IPC: H01L25/065 ,  G09G3/3233 ,  H01L21/66 ,  H01L23/00 ,  H01L25/075 ,  H01L27/12

CPC classification number: H01L25/0655 ,  G09G3/3233 ,  H01L25/0753 ,  H01L27/1248 ,  H01L27/127 ,  G09G2300/026 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  H01L22/22 ,  H01L22/32 ,  H01L24/05 ,  H01L24/16 ,  H01L27/1218 ,  H01L2224/05573 ,  H01L2224/16227 ,  H01L2924/12041

Abstract: A display device includes a substrate including a plurality of emission areas respectively corresponding to a plurality of subpixels for displaying an image, a plurality of light emitting elements respectively located in the plurality of emission areas of a first surface of the substrate and respectively corresponding to the plurality of subpixels, a first planarization layer on the first surface of the substrate and covering the plurality of light emitting elements, and an array layer on the first planarization layer.

公开(公告)号：US11887525B2

公开(公告)日：2024-01-30

申请号：US17810141

申请日：2022-06-30

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Jun Ki Jeong

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/2011 ,  G09G3/32 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0242

Abstract: A display device includes PAM data lines receiving PAM and PWM data voltages, and sub-pixels connected to the PAM and PWM data lines. A sub-pixel includes a light emitting element, a first pixel driver to supply a control current according to one of the PAM data voltages to a node, a second pixel driver to generate a driving current according to one of the PWM data voltages, and a third pixel driver to adjust a period during which the driving current is supplied to the light emitting element according to a voltage of the node. A peak current value of the driving current when the sub-pixel emits a light corresponding to a low gray level region is smaller than a peak current value of the driving current when the sub-pixel emits a light corresponding to a high gray level region higher than the low gray level region.

公开(公告)号：US11837156B2

公开(公告)日：2023-12-05

申请号：US17807690

申请日：2022-06-17

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jun Ki Jeong

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2320/0633

Abstract: A display device includes a scan write line, a PWM emission line, a PAM emission line, a sweep signal line, a first data line, a second data line, and a subpixel connected thereto, and including a light emitting element, a first pixel driver to supply a control current to a node according to the first data voltage in response to the PWM emission signal, a second pixel driver to generate a driving current according to the second data voltage in response to the PWM emission signal, and a third pixel driver to supply the driving current to the light emitting element according to the PAM emission signal and a voltage of the node, wherein the PWM emission signal includes a plurality of PWM pulses, the PAM emission signal includes a plurality of PAM pulses, and a number of the PWM pulses is greater than a number of the PAM pulses.

公开(公告)号：US11688331B2

公开(公告)日：2023-06-27

申请号：US17849299

申请日：2022-06-24

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jun Ki Jeong

IPC: G09G3/22 ,  G09G3/3208 ,  G09G3/3241 ,  G09G3/3233 ,  G09G3/36

CPC classification number: G09G3/22 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/3648 ,  G09G2330/025 ,  G09G2330/028

Abstract: A display device includes: a first pixel driver to generate a control current; a second pixel driver to generate a driving current, and control a period during which the driving current flows, based on the control current; and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes: a first transistor to generate the control current based on a first data voltage; and a second transistor to provide the first data voltage to a first electrode of the first transistor based on a scan write signal from a scan write line. The second pixel driver includes: a third transistor to generate the driving current based on the control current; and a fourth transistor to provide a second data voltage to a first electrode of the third transistor based on a scan write signal from the scan write line.

公开(公告)号：US10101607B2

公开(公告)日：2018-10-16

申请号：US14581758

申请日：2014-12-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Kye Uk Lee ,  Dong Hyun Yoo ,  Seong Young Lee ,  Kyung Hoe Lee

IPC: G02F1/1335 ,  H01L27/32 ,  H01L51/52 ,  G02F1/1333

Abstract: A display device may include a first substrate having a predetermined radius of curvature, a second substrate facing the first substrate, a plurality of gate line and a plurality of data lines intersecting each other on the first substrate, a black matrix disposed on the second substrate and at least part of the black matrix overlapping the plurality of gate lines and the plurality of data lines so as to define a plurality of pixel areas, a plurality of pixel electrode in the plurality of pixel areas on the first substrate, and a plurality of color filters in the plurality of pixel areas on the second substrate. A distance between adjacent color filters is different depending on where the pixel areas are located.

公开(公告)号：US12272296B2

公开(公告)日：2025-04-08

申请号：US18066111

申请日：2022-12-14

Applicant: Samsung Display Co., LTD.

Inventor： Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jung Hwan Hwang

IPC: G09G3/32 ,  H01L23/00 ,  H01L25/16 ,  H01L27/12

Abstract: A display device includes a scan write line configured to receive a scan write signal, a scan initialization line configured to receive a scan initialization signal, a sweep signal line configured to receive a sweep signal, a first data line configured to receive a first data voltage, a second data line configured to receive a second data voltage, and a subpixel connected to the scan write line, the scan initialization line, the sweep signal line, the first data line, and the second data line. The subpixel includes a light-emitting element, a first pixel driver including a first transistor configured to generate a control current according to the first data voltage of the first data line, and a second pixel driver including an eighth transistor configured to generate a driving current applied to the light-emitting element according to the second data voltage.

公开(公告)号：US12254809B2

公开(公告)日：2025-03-18

申请号：US18422988

申请日：2024-01-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Jun Ki Jeong

IPC: G09G3/20 ,  G09G3/32

Abstract: A display device includes PAM data lines receiving PAM and PWM data voltages, and sub-pixels connected to the PAM and PWM data lines. A sub-pixel includes a light emitting element, a first pixel driver to supply a control current according to one of the PAM data voltages to a node, a second pixel driver to generate a driving current according to one of the PWM data voltages, and a third pixel driver to adjust a period during which the driving current is supplied to the light emitting element according to a voltage of the node. A peak current value of the driving current when the sub-pixel emits a light corresponding to a low gray level region is smaller than a peak current value of the driving current when the sub-pixel emits a light corresponding to a high gray level region higher than the low gray level region.

公开(公告)号：US12249273B2

公开(公告)日：2025-03-11

申请号：US18498018

申请日：2023-10-30

Applicant: Samsung Display Co., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Jun Ki Jeong ,  Sang Jin Jeon

IPC: G09G3/32

Abstract: A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.

公开(公告)号：US12165568B2

公开(公告)日：2024-12-10

申请号：US18353817

申请日：2023-07-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jung Hwan Hwang ,  Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jun Ki Jeong

IPC: G09G3/22 ,  G09G3/3208 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/36

Abstract: A display device includes a first pixel driver connected to a sweep line, the first pixel driver generating a control current based on a first data voltage, a second pixel driver connected to a scan control line, the second pixel driver generating a driving current based on a second data voltage and controlling a period for which the driving current flows, based on the control current, and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes a first transistor generating the control current based on the first data voltage, a second transistor providing the first data voltage to a first electrode of the first transistor based on a scan write signal, and a first capacitor including a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep line.

公开(公告)号：US12136381B2

公开(公告)日：2024-11-05

申请号：US17842927

申请日：2022-06-17

Applicant: Samsung Display Co., LTD.

Inventor： Jun Ki Jeong ,  Hyun Joon Kim ,  Kye Uk Lee ,  Sang Jin Jeon ,  Jung Hwan Hwang

IPC: G09G3/32

Abstract: A display device includes a display area which displays an image, and a non-display area disposed around the display area and including a pad part. The display area includes pixels of a first pixel row which are pixels arranged in a first direction along the first pixel row, pixels of a second pixel row, which are pixels arranged in the first direction along the second pixel row next to the first pixel row, and pixel circuits of a first circuit row which are pixel circuits arranged in the first direction along the first circuit row, where the pixel circuits of the first circuit row are electrically connected to the pixels of the first pixel row, respectively. The first pixel row and the first circuit row are spaced apart from each other with the second pixel row interposed therebetween.