US 11,841,568 B2
Display panel and tiled display apparatus having the same
Younghye Son, Yongin-si (KR); and Donghyeon Lee, Seoul (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Dec. 12, 2019, as Appl. No. 16/712,069.
Claims priority of application No. 10-2018-0171730 (KR), filed on Dec. 28, 2018.
Prior Publication US 2020/0211929 A1, Jul. 2, 2020
Int. Cl. G02F 1/1333 (2006.01); G06F 3/14 (2006.01); G09F 9/302 (2006.01); H10K 59/18 (2023.01); G02B 17/00 (2006.01)
CPC G02F 1/13336 (2013.01) [G06F 3/1446 (2013.01); G09F 9/3026 (2013.01); H10K 59/18 (2023.02); G02B 17/006 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display panel which comprises a display area in which a plurality of pixels is arranged and a plurality of peripheral areas surrounding the display area, the display panel comprising:
a first substrate including a first surface and a second surface, wherein the first substrate includes a portion defining the display area, and a plurality of portions defining the plurality of peripheral areas, respectively;
a second substrate disposed opposite to the first substrate, wherein the second substrate includes a portion defining the display area, and a plurality of portions defining the plurality of peripheral areas, respectively, and the first surface of the first substrate is disposed closer to the second substrate than the second surface of the first substrate is, and the plurality of pixels is disposed between the portion of the first substrate defining the display area and the portion of the second substrate defining the display area;
a first external signal line disposed on the first surface of the first substrate in a first peripheral area of the plurality of peripheral areas and connected to an external device, wherein the first surface of the first substrate is between the first external signal line and the second surface of the first substrate; and
a first through-hole terminal comprising a conductive material filled in a hole defined completely through the first substrate in an area in which the first external signal line is disposed,
wherein the plurality of pixels displays an image,
wherein the second substrate is combined with the first substrate in a staggered structure to expose the first through-hole terminal,
wherein the first external signal line is connected to a driving circuit unit, which drives the plurality of pixels, via the first through-hole terminal, the driving circuit unit being disposed on the second surface of the first substrate,
wherein the driving circuit unit comprises a flexible circuit film and a printed circuit board on which a driving circuit is mounted,
wherein the flexible circuit film overlaps the first through-hole terminal, and
wherein overlapping portions of the flexible circuit film and the through-hole terminal are in contact with each other.