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. 01, 2019
Filed:
Jul. 13, 2017
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Yufeng Jin, Shenzhen, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The invention provides driving methods for OLED display panel. One method uses an improved driving circuit: disposing a sensing line (S(a)) corresponding to two columns of pixels (P), the a-th sensing line (S(a)) synchronously detecting threshold voltages of the light-emitting sub-pixels of odd-numbered rows in (2a−1)-th column pixels (P) and of even-numbered rows in 2a-th column pixels (P); or, the a-th sensing line (S(a)) synchronously detecting threshold voltages of the light-emitting sub-pixels of even-numbered rows in (2a−1)-th column pixels (P) and of odd-numbered rows in 2a-th column pixels (P); to perform detection on half of the sub-pixels in OLED display panel, to reduce the number of sensing lines by half to save cost. Another method improves the driving signal timing sequence to reduce the number of detection times of the sensing lines by half with obtaining the threshold voltages of all the sub-pixels of the OLED display panel.