公开(公告)号：US11791318B2

公开(公告)日：2023-10-17

申请号：US16991515

申请日：2020-08-12

Applicant: Samsung Display Co., LTD.

Inventor： Seung Min Lee ,  Jin Yeong Kim ,  Sang Ho Park ,  Tae Hoon Yang ,  Sung Jin Lee ,  Jin Woo Lee

IPC: H01L25/075 ,  H01L27/15

CPC classification number: H01L25/0753 ,  H01L27/156

Abstract: A display device includes a substrate, a display element layer disposed on a first surface of the substrate and including a light emitting element that emits light, and a pixel circuit layer disposed on the display element layer and including a transistor electrically connected to the light emitting element. The display element layer includes a first contact electrode electrically connected to a first end of the light emitting element, and a second contact electrode electrically connected to a second end of the light emitting element. The pixel circuit layer includes a reflective layer disposed on the display element layer and overlapping the light emitting element. One of the first contact electrode and the second contact electrode is electrically connected to the transistor. The reflective layer reflects the light emitted from the light emitting element toward a second surface of the substrate.

公开(公告)号：US11705478B2

公开(公告)日：2023-07-18

申请号：US17179906

申请日：2021-02-19

Applicant: Samsung Display Co., LTD.

Inventor： Jong Chan Lee ,  Jeong Nyun Kim ,  Jung Gun Nam ,  Sung Geun Bae ,  Sung Jin Lee ,  Tae Hee Lee

IPC: H01L27/15 ,  H01L25/075 ,  H01L33/38 ,  H01L33/58

CPC classification number: H01L27/156 ,  H01L25/0753 ,  H01L33/38 ,  H01L33/58

Abstract: A display device includes a first pixel including a first light emitting area in which first light emitting elements are arranged, a second pixel including a second light emitting area in which second light emitting elements are arranged, a light blocking pattern disposed on the first and second pixels to overlap a peripheral area of the first and second light emitting areas and including a first opening corresponding to the first light emitting area and a second opening corresponding to the second light emitting area, and a color filter including a first color filter pattern disposed in the first opening and a second color filter pattern disposed in the second opening. The second pixel includes a greater number of second light emitting elements than a number of the first light emitting elements. The second opening has an area smaller than an area of the first opening.

公开(公告)号：US11552215B2

公开(公告)日：2023-01-10

申请号：US16937255

申请日：2020-07-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Jin Lee ,  Jin Yeong Kim ,  Jin Taek Kim ,  Mi Jin Park ,  Sang Ho Park ,  Tae Hoon Yang

IPC: H01L33/00 ,  H01L31/12 ,  H01L29/26 ,  H01L27/15 ,  H01L25/075 ,  H01L33/40 ,  H01L33/42

Abstract: A method of manufacturing a display device includes: forming a first electrode on a substrate; forming an insulating layer on the substrate and on the first electrode; providing light emitting elements in the insulating layer, each of the light emitting elements having a long axis and a short axis crossing the long axis and being configured to emit light; aligning the light emitting elements such that one end of each of the light emitting elements faces the substrate and the long axis of each of the light emitting elements is arranged in a direction from the substrate toward the insulating layer; patterning the insulating layer to form an insulating pattern exposing another end of each of the light emitting elements; and forming a second electrode electrically connected to the exposed other end of each of the light emitting elements.

公开(公告)号：US11437345B2

公开(公告)日：2022-09-06

申请号：US16996714

申请日：2020-08-18

Applicant: Samsung Display Co., Ltd.

Inventor： Sung Jin Lee ,  Jin Yeong Kim ,  Jin Taek Kim ,  Soo Hyun Moon ,  Tae Hoon Yang ,  Seung Min Lee

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

Abstract: Provided is a display device including a substrate including a display area including a plurality of pixel areas, and a non-display area outside the display area, a pixel circuit layer including a plurality of circuit elements in the display area, a display element layer including a plurality of light-emitting elements in the display area on the pixel circuit layer, and first and second alignment lines on the substrate, and each including a main line at the same layer as at least one electrode on the display element layer, and a sub line electrically connected to the main line and at the same layer as at least one electrode on the pixel circuit layer, wherein the first alignment line and the second alignment line do not include the main line in the non-display area, and include the sub line to be spaced apart from one edge of the substrate.

公开(公告)号：US20210134768A1

公开(公告)日：2021-05-06

申请号：US16988163

申请日：2020-08-07

Applicant: Samsung Display Co., LTD.

Inventor： Sung Jin Lee ,  Jin Yeong Kim ,  Jin Taek Kim ,  Mi Jin Park ,  Jin Woo Lee ,  Kwang Taek Hong

IPC: H01L25/075 ,  H01L25/16 ,  H01L33/38

Abstract: A display device includes a substrate including a display area and a non-display area, and pixels disposed in the display area. The pixels each include first electrodes, second electrodes spaced apart from the first electrodes, and light emitting elements disposed between the first electrodes and the second electrodes. The first electrodes each include a closed loop of a polygonal shape in some sections.