US 12,226,771 B2
Driving circuit, driving method and microfluidic substrate
Kaidi Zhang, Shanghai (CN); Baiquan Lin, Shanghai (CN); Wei Li, Shanghai (CN); Yunfei Bai, Shanghai (CN); Kerui Xi, Shanghai (CN); and Feng Qin, Shanghai (CN)
Assigned to Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed by Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai (CN)
Filed on Nov. 16, 2021, as Appl. No. 17/455,148.
Claims priority of application No. 202111008620.6 (CN), filed on Aug. 31, 2021.
Prior Publication US 2023/0063019 A1, Mar. 2, 2023
Int. Cl. B01L 3/00 (2006.01); G02B 26/00 (2006.01); G09G 3/34 (2006.01)
CPC B01L 3/50273 (2013.01) [B01L 3/502792 (2013.01); G02B 26/005 (2013.01); G09G 3/348 (2013.01); B01L 2300/0819 (2013.01); B01L 2400/0427 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A driving circuit, comprising:
a first switching unit, wherein a control terminal of the first switching unit is electrically connected to a first scan signal terminal, a first terminal of the first switching unit is electrically connected to a first voltage signal terminal, and a second terminal of the first switching unit is electrically connected to a first node;
a second switching unit, wherein a control terminal of the second switching unit is electrically connected to the first node, a first terminal of the second switching unit is electrically connected to a second voltage signal terminal, a second voltage signal input into the second voltage signal terminal is an AC signal, and a second terminal of the second switching unit is electrically connected to an output terminal of the driving circuit;
a reset unit, wherein a control terminal of the reset unit is electrically connected to a second scan signal terminal, a first terminal of the reset unit is electrically connected to a third voltage signal terminal, and a second terminal of the reset unit is electrically connected to the output terminal of the driving circuit;
a first capacitor, wherein a first plate of the first capacitor is electrically connected to the first node, and a second plate of the first capacitor is electrically connected to a common voltage supply terminal; and
a second capacitor, wherein a first plate of the second capacitor is electrically connected to the output terminal of the driving circuit, and a second plate of the second capacitor is electrically connected to the common voltage supply terminal.