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Pat. 10192474 United States, Int. Cl.22 G11C 19/00, G09G 3/20, G11C 5/14, G11C 19/28, H02M 3/07, G09G 3/36. Controllable voltage source, shift register and unit thereof, and display : Appl. N 15/329143 : Filed 14.11.2014 : Pub. 29.01.2019 : / Shengdong Zhang, Congwei Liao, Zhijin Hu, Wenjie Li, Junmei Li ; Assignee Peking University Shenzhen Graduate School ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10192474/en?oq=US10192474.html (дата обращения: ДД.ММ.ГГГГ).