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:
May. 10, 2022
Filed:
Nov. 22, 2019
Lg Display Co., Ltd., Seoul, KR;
Seokhyun Hong, Paju-si, KR;
Changwoo Lee, Daegu, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
The present disclosure relates to a pixel sensing device and the organic light emitting display device including the same which reduce or minimize the influence of the panel noise and improve sensing accuracy and sensing reliability. The pixel sensing device includes a current integrator connected to a pixel through a sensing line of a display panel and integrating a pixel current flowing through the pixel to generate an integrator output voltage; a sample and hold unit sampling and holding the integrator output voltage; an analog to digital converter (ADC) converting the integrator output voltage output from the sample and hold unit into a digital signal; and a first capacitor serving to reduce or minimize a distortion degree of the integrator output voltage due to panel noise mixed to the pixel current.