公开(公告)号：US12261254B2

公开(公告)日：2025-03-25

申请号：US16742795

申请日：2020-01-14

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hye Lee ,  Kyung Bae Kim ,  Yu Jin Lee ,  Chong Chul Chai

IPC: H01L33/58 ,  H01L25/075 ,  H01L33/24 ,  H01L33/38 ,  H01L33/60 ,  H01L33/62

Abstract: A display device includes: a base layer; a pixel circuit layer on the base layer; and a display element layer on the pixel circuit layer. The pixel circuit layer includes a lens pattern at a recess between the display element layer and the base layer, the display element layer includes a light emitting element, and at least a portion of the light emitting element overlaps with the lens pattern.

公开(公告)号：US11961950B2

公开(公告)日：2024-04-16

申请号：US17260963

申请日：2019-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung Bae Kim ,  Hyun Joon Kim ,  Kyung Hoon Chung ,  Mee Hye Jung ,  Min Jae Jeong ,  Jun Ki Jeong

IPC: H01L33/62 ,  G09G3/32 ,  H01L25/075 ,  H01L33/38

CPC classification number: H01L33/62 ,  H01L25/0753 ,  H01L33/387 ,  G09G3/32 ,  G09G2300/0426

Abstract: A display device comprises a substrate, a semiconductor layer thereon, a first insulating layer on the semiconductor layer, a first conductive layer on the first insulating layer and including a first electrode pattern, a second insulating layer on the first insulating layer and including first and second conductive patterns, a third insulating layer on the second conductive layer, and a display element layer on the third insulating layer and including a first pixel electrode connected to the first conductive pattern through a first via hole, a second pixel electrode connected to the second conductive pattern through a second via hole, and a micro light-emitting element between the pixel electrodes, the first conductive pattern contacting the semiconductor layer through a first contact hole and the first electrode pattern through a second contact hole, and the second conductive pattern overlapping the first electrode pattern to form a first capacitor therewith.

公开(公告)号：US11855122B2

公开(公告)日：2023-12-26

申请号：US17196869

申请日：2021-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Do Yeong Park ,  Kyung Bae Kim ,  No Kyung Park

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/62

CPC classification number: H01L27/156 ,  H01L33/387 ,  H01L33/62

Abstract: A display device includes subpixels comprising a plurality of first type subpixels and a plurality of second type subpixels, a plurality of electrodes, each comprising an electrode stem portion and at least one electrode protrusion portion, a plurality of light emitting elements having a shape of extending in one direction and disposed on the electrode stem portion of the one electrode and the electrode protrusion portion of the other electrode, and a plurality of first contact electrodes contacting a first end of the light emitting elements and a plurality of second contact electrodes contacting a second end of the light emitting elements, wherein the light emitting elements comprise first type light emitting elements and second type light emitting elements, and the first ends of the first type light emitting elements and the second type light emitting elements face in opposite directions.

公开(公告)号：US11776973B2

公开(公告)日：2023-10-03

申请号：US17379917

申请日：2021-07-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Joon Kim ,  Kyung Bae Kim ,  Kyung Hoon Chung ,  Mee Hye Jung

IPC: H01L27/12 ,  H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H01L33/62 ,  H01L33/00 ,  H01L33/20

CPC classification number: H01L27/1296 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/124 ,  H01L33/387 ,  H01L33/0095 ,  H01L33/20 ,  H01L33/62 ,  H01L2933/0016

Abstract: A method of manufacturing a display device, the method including providing a substrate, forming a first electrode, a second electrode spaced from the first electrode and in a same plane as the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on the substrate, self-aligning the plurality of light emitting elements by providing a solution containing a plurality of light emitting elements on the substrate, removing the first alignment line and the second alignment line from the substrate on which the plurality of light emitting elements are self-aligned, forming a first contact electrode electrically connecting one end of each light emitting element to the first electrode, and forming a second contact electrode electrically connecting an other end of each light emitting element to the second electrode.

公开(公告)号：US11749658B2

公开(公告)日：2023-09-05

申请号：US17842678

申请日：2022-06-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji Hye Lee ,  Kyung Bae Kim ,  Mee Hye Jung

IPC: H01L25/16 ,  H01L33/62 ,  H01L27/12 ,  H01L33/60 ,  H01L23/00

CPC classification number: H01L25/167 ,  H01L24/92 ,  H01L27/124 ,  H01L27/1259 ,  H01L33/60 ,  H01L33/62 ,  H01L2224/9201 ,  H01L2224/92144 ,  H01L2933/0066

Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located at at least one side of the display area; a pixel in each of the pixel areas; and a plurality of fan-out lines in the non-display area to form a first conductive layer. The pixel includes a pixel circuit layer including at least one transistor and a first bridge line and a second bridge line; and a display element layer on the pixel circuit layer. Each of the first and second bridge lines is electrically connected to a corresponding fan-out line from among the fan-out lines.

公开(公告)号：US11710432B2

公开(公告)日：2023-07-25

申请号：US17749690

申请日：2022-05-20

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Joon Kim ,  Jun Ki Jeong ,  Kyung Hoon Chung ,  Kyung Bae Kim ,  Seung Chan Lee ,  Chong Chul Chai

IPC: G09G3/00

CPC classification number: G09G3/006 ,  G09G2300/0842 ,  G09G2330/10 ,  G09G2330/12

Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.

公开(公告)号：US12170289B2

公开(公告)日：2024-12-17

申请号：US18194808

申请日：2023-04-03

Applicant: Samsung Display Co., LTD.

Inventor： Do Yeong Park ,  Kyung Bae Kim ,  Jong Woong Chang

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

Abstract: A display device includes a pixel component including scan lines, data lines, and pixels electrically connected to the scan lines and the data lines, and defining pixel columns and pixel rows, a data driver disposed on a side of the pixel component, and a scan driver disposed on the side of the pixel component. The pixel component includes sub-scan lines, and dummy lines. Each scan line may be electrically connected to the sub-scan lines by contacts. The contacts are divided into contact groups having a same arrangement. The pixel component is divided into pixel blocks corresponding to the contact groups. Each pixel block includes first and second area divided by contact group. The first area is closer to the scan driver than the second area. The pixel component further includes supplementary power lines spaced apart from the respective sub-scan lines.

公开(公告)号：US11901346B2

公开(公告)日：2024-02-13

申请号：US17242132

申请日：2021-04-27

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hye Lee ,  Kyung Bae Kim ,  Min Kyu Woo

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/62 ,  H01L23/00

CPC classification number: H01L25/167 ,  H01L24/32 ,  H01L25/162 ,  H01L27/124 ,  H01L33/62 ,  H01L2224/32227

Abstract: A display device may include: a substrate including a display area and a non-display area; pixels in the display area, each of the pixels including first to fourth electrodes, and light emitting elements connected with the first to fourth electrodes; first pads in a pad area of the non-display area; first to third lines provided in the non-display area; and a circuit board overlapping with the pad area of the substrate and including second pads electrically connected with the first pads. The first pads may include a 1-1th pad connected to the first line, a 1-2th pad connected to the second line, and a 1-3th pad connected to the third line. An identical driving voltage may be applied to at least two lines of the first to third lines. The first to third lines may apply alignment signals to the first to fourth electrodes.

公开(公告)号：US11877478B2

公开(公告)日：2024-01-16

申请号：US17395004

申请日：2021-08-05

Applicant: Samsung Display Co., LTD.

Inventor： Do Yeong Park ,  Kyung Bae Kim ,  Mee Hye Jung ,  Chong Chul Chai

IPC: H10K59/122 ,  H10K59/35

CPC classification number: H10K59/122 ,  H10K59/353

Abstract: A display device includes subpixels each comprising an emission area, electrodes which are disposed in the emission area, extend in a first direction, and are spaced apart in a second direction intersecting the first direction, a first insulating layer disposed on the electrodes, a first bank, and light emitting elements. The first bank includes a first bank part disposed on the first insulating layer and surrounding the emission area, and a second bank part connected to the first bank part and disposed in the emission area. The light emitting elements are disposed on the electrodes spaced apart in the second direction. A height of the second bank part of the first bank is lower than a height of the first bank part of the first bank.

公开(公告)号：US11730031B2

公开(公告)日：2023-08-15

申请号：US17243544

申请日：2021-04-28

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Hye Lee ,  Kyung Bae Kim ,  No Kyung Park

IPC: H01L21/00 ,  H10K59/131 ,  H10K59/121 ,  H10K59/122

CPC classification number: H10K59/131 ,  H10K59/121 ,  H10K59/122

Abstract: A display device comprises a pixel which comprises emission areas, a first voltage wiring and a second voltage wiring, which are outside the emission areas of the pixel and extend in a first direction and a second direction crossing the first direction, first electrodes and second electrodes which are respectively in the emission areas and extend in one direction, light emitting elements which are on the first and second electrodes, first contact electrodes which contact the first electrodes and the light emitting elements, and second contact electrodes which contact the second electrodes and the light emitting elements, and a first electrode line which overlaps the first voltage wiring and is outside the emission areas and a second electrode line which overlaps the second voltage wiring and is outside the emission areas, wherein each of the first electrodes and the first electrode line is electrically connected to the first voltage wiring, and each of the second electrodes and the second electrode line is electrically connected to the second voltage wiring.