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:
Jun. 15, 2021
Filed:
Dec. 05, 2019
Lg Display Co., Ltd., Seoul, KR;
Cheon-Kee Shin, Gyeongsangbuk-do, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
Disclosed herein is a flat panel display device capable of reducing switching noise and electromagnetic interference noise caused by driving of a multiplexer and stabilizing a common voltage in an in-cell touch flat panel display device. Discloses is a multiplexer controlled by k MUX control signals and k pseudo MUX control signals to selectively supply the data signal supplied from each output channel of the data driving circuit to k data lines. The multiplexer includes k pairs of switching transistors. Each pair of switching transistors include a first switching transistor controlled by one of the k MUX control signals to supply a data signal output from the one output channel of the data driving circuit to one data line, and a second switching transistor controlled by one of the k pseudo MUX control signals having a phase opposite to that of the one of the k MUX control signals.