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.
Patent No.:
Date of Patent:
Jul. 21, 2009
Filed:
Dec. 27, 2006
Jong-hyun Choung, Suwon-si, KR;
Hong-sick Park, Suwon-si, KR;
Joo-ae Youn, Seongnam-si, KR;
Sun-young Hong, Seoul, KR;
Bong-kyun Kim, Incheon, KR;
Won-suk Shin, Yongin-si, KR;
Doo-hee Jung, Seoul, KR;
Byeong-jin Lee, Yongin-si, KR;
Jong-Hyun Choung, Suwon-si, KR;
Hong-Sick Park, Suwon-si, KR;
Joo-Ae Youn, Seongnam-si, KR;
Sun-Young Hong, Seoul, KR;
Bong-Kyun Kim, Incheon, KR;
Won-Suk Shin, Yongin-si, KR;
Doo-Hee Jung, Seoul, KR;
Byeong-Jin Lee, Yongin-si, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A display substrate includes an insulating substrate, a thin film transistor, a contact electrode, and a pixel electrode. The thin film transistor includes a control electrode, a semiconductor pattern, a first electrode, and a second electrode. The control electrode is on the insulating substrate. The semiconductor pattern is on the control electrode. The first electrode is on the semiconductor pattern. The second electrode is spaced apart from the first electrode on the semiconductor pattern. The contact electrode includes a contact portion and an undercut portion. The contact portion is electrically connected to the second electrode to partially expose the semiconductor pattern. The undercut portion is electrically connected to the contact portion to cover the semiconductor pattern. The pixel electrode is electrically connected to the second electrode through the contact portion of the contact electrode.