公开(公告)号：US11079689B2

公开(公告)日：2021-08-03

申请号：US16418945

申请日：2019-05-21

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Soon Wook Hong ,  Seung Rae Kim ,  Jae-Hyun Park ,  Min cheol Chae

IPC: G01B11/00 ,  G03F7/20 ,  G03F9/00

Abstract: A display device including: a substrate having display area and a non-display area; and an alignment mark disposed in the non-display area of the substrate. The alignment mark includes a quadrangular-shaped center portion and a plurality of measurement portions that surround the center portion, the plurality of measurement portions including four or more measurement portions, and each of the measurement portions including sides that are parallel with two sides of the quadrangular-shaped center portion.

公开(公告)号：US11222560B2

公开(公告)日：2022-01-11

申请号：US16230631

申请日：2018-12-21

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook Lee ,  Jae Ho Choi ,  Seung Rae Kim ,  Jae Min Seong ,  Min cheol Chae

IPC: G02F1/13 ,  G09G3/00 ,  G02F1/1335 ,  G02F1/1333

Abstract: An exemplary embodiment provides a display device including: a display part configured to include a display part color filter; and a peripheral part disposed at the upper side of the display part and including an inspection pattern for checking an alignment of the display part color filter. The inspection pattern may include a plurality of color filters having colors and reference patterns disposed at at least one side of the plurality of color filters. A number of the plurality of color filters of each color corresponds to a number of shots of a division exposure process. Adjacent color filters among the plurality of color filters may be disposed at different heights.

公开(公告)号：US20210318623A1

公开(公告)日：2021-10-14

申请号：US17355089

申请日：2021-06-22

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun Wook LEE ,  Soon Wook Hong ,  Seung Rae Kim ,  Jae-Hyun Park ,  Min cheol Chae

IPC: G03F7/20 ,  G03F9/00

Abstract: A method of manufacturing a display device including: preparing a substrate having a display area and a non-display area; and forming an alignment mark disposed in the non-display area of the substrate. The alignment mark includes a quadrangular-shaped center portion and a plurality of measurement portions that surround the center portion, the plurality of measurement portions including four or more measurement portions, and each of the measurement portions including sides that are parallel with two sides of the quadrangular-shaped center portion.