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:
Jan. 12, 2016
Filed:
Apr. 17, 2012
Jae-beom Choi, Yongin, KR;
Won-kyu Lee, Yongin, KR;
Jae-hwan OH, Yongin, KR;
Young-jin Chang, Yongin, KR;
Seong-hyun Jin, Yongin, KR;
Jae-Beom Choi, Yongin, KR;
Won-Kyu Lee, Yongin, KR;
Jae-Hwan Oh, Yongin, KR;
Young-Jin Chang, Yongin, KR;
Seong-Hyun Jin, Yongin, KR;
Samsung Display Co., Ltd., Yongin-si, KR;
Abstract
An array test method of an organic light emitting diode (OLED) display substrate is provided. The OLED display substrate includes a plurality of pixel circuits. Each pixel circuit includes an anode, a first transistor for transmitting a data signal that controls an amount of light emission of an OLED according to a scan signal, a driving transistor for receiving the data signal, generating a driving current corresponding to the data signal, and transmitting the driving current to the OLED, and a second transistor for diode-connecting a gate electrode and a drain electrode of the driving transistor. The array test method includes: injecting electrons or holes that generate an initialization voltage into the anode by turning on the second transistor; radiating electron beams at the anode; and determining whether or not the driving transistor performs normal operation from an amount of secondary electrons emitted from the anode.