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:
Aug. 13, 2024
Filed:
Apr. 17, 2023
Samsung Display Co., Ltd., Yongin-si, KR;
Moon Jae Jeong, Yongin-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, KR;
Abstract
A display device includes driving electrodes and sensing electrodes; analog front-end circuits; a selector connected to the analog front-end circuits to select an output of the analog front-end circuits; an A/D converter generating a sensed value based on output signals of the selector; and a signal processor. Each of the analog front-end circuits includes a charge amplifier differentially amplifying first and second sensing signals provided to first and second input terminals, and outputting first and second differential signals to first and second output terminals; a filter filtering the first and second differential signals to output first and second filtered signals; a demodulator outputting an in-phase signal (I-signal) and a quadrature signal (Q-signal) of the first and second filtered signals; and a complex band-pass filter that filters the I-signal and the Q-signal.