The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 14, 2021

Filed:

Jan. 24, 2020
Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventors:

Daegeun Lee, Hwaseong-si, KR;

Kyung-Mok Lee, Bucheon-si, KR;

Wuhyen Jung, Seoul, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/52 (2006.01); H01L 21/66 (2006.01); G09G 3/00 (2006.01); H01L 23/00 (2006.01); G09G 3/3225 (2016.01); H01L 29/786 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3276 (2013.01); G09G 3/006 (2013.01); H01L 22/32 (2013.01); H01L 22/34 (2013.01); H01L 24/32 (2013.01); H01L 51/5253 (2013.01); G09G 3/3225 (2013.01); G09G 2300/0426 (2013.01); H01L 27/3244 (2013.01); H01L 29/7869 (2013.01); H01L 29/78666 (2013.01); H01L 29/78669 (2013.01); H01L 51/0031 (2013.01); H01L 2224/2929 (2013.01); H01L 2224/32145 (2013.01); H01L 2251/5338 (2013.01); H01L 2924/069 (2013.01); H01L 2924/0635 (2013.01); H01L 2924/0665 (2013.01); H01L 2924/12044 (2013.01); H01L 2924/1426 (2013.01); H01L 2924/1433 (2013.01);
Abstract

A display panel measures a contact resistance of an adhesive portion to evaluate adhesion quality of an integrated circuit mounted thereon. The display panel includes a plurality of light-emitting elements, a first pad part including a plurality of first effective pads electrically connected to the light-emitting elements, and n (n being a natural number equal to or greater than 2) first measuring pads insulated from the light-emitting elements, a conductive adhesive film on the first pad part and including a plurality of conductive balls, an integrated circuit on the conductive adhesive film, and including an internal line electrically connected to the first measuring pads by the conductive balls, and a second pad part including a plurality of second effective pads electrically connected to the first effective pads, and 2n second measuring pads electrically connected to the first measuring pads.


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