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:
Nov. 08, 2022

Filed:

Mar. 03, 2021
Applicant:

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

Inventors:

Hwayoung Song, Asan-si, KR;

Seungwoo Sung, Cheonan-si, KR;

Dong Eup Lee, Asan-si, KR;

Seungji Cha, Seoul, KR;

Kimyeong Eom, Suwon-si, KR;

Kwangsae Lee, Asan-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/317 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G01R 31/31712 (2013.01); G09G 3/2003 (2013.01); G09G 2300/0452 (2013.01); G09G 2330/12 (2013.01);
Abstract

A display panel test circuit includes a first transistor connected to a first data line and receiving a red lighting test signal, a second transistor connected to the first data line and receiving a blue lighting test signal, a third transistor connected to a second data line and receiving a first green lighting test signal, a fourth transistor connected to a third data line and receiving the red lighting test signal, a fifth transistor connected to the third data line and receiving the blue lighting test signal, a sixth transistor connected to a fourth data line and receiving a second green lighting test signal, a seventh transistor connected to the second data line and receiving a crack test signal, and an eighth transistor connected to the fourth data line and receiving the crack test signal. The display panel test circuit performs one or more tests on a display panel.


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