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. 02, 2024
Filed:
Feb. 14, 2020
Sharp Kabushiki Kaisha, Sakai, JP;
Kaoru Yamamoto, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
In a display device having an external compensation function, a decrease in compensation accuracy caused by coupling noise generated in a data signal line is prevented. An emission driver that applies a light-emission control signal (EM) to each of a plurality of light-emission control lines includes a shift register formed of a plurality of unit circuits. The shift register generates a light-emission control signal (EM) to be applied to each light-emission control line on the basis of a plurality of light-emission control clock signals (ECKto ECK) outputted from a display control circuit. The display control circuit stops the outputs of the plurality of light-emission control clock signals (ECKto ECK) throughout a current measurement period in which a current corresponding to the characteristic of the drive transistor is measured.