US 12,217,711 B2
Electrophoretic display device and method for electrophoretic display refreshing
Mancheng Zhou, Guangdong (CN); and Haoxuan Zheng, Guangdong (CN)
Assigned to HKC CORPORATION LIMITED, Guangdong (CN)
Filed by HKC Corporation Limited, Guangdong (CN)
Filed on Dec. 28, 2022, as Appl. No. 18/090,089.
Claims priority of application No. 202210238195.8 (CN), filed on Mar. 10, 2022.
Prior Publication US 2023/0290315 A1, Sep. 14, 2023
Int. Cl. G09G 3/34 (2006.01); G09G 3/20 (2006.01)
CPC G09G 3/344 (2013.01) [G09G 3/2096 (2013.01); G09G 3/3433 (2013.01); G09G 2310/0243 (2013.01); G09G 2310/0245 (2013.01); G09G 2320/0257 (2013.01); G09G 2330/021 (2013.01); G09G 2330/022 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrophoretic display device, comprising a display screen, a driving circuit, a driving control circuit, and a processor, wherein the processor is directly connected to the driving circuit, the driving circuit is directly connected to the driving control circuit, the driving control circuit is directly connected to the display screen, the display screen comprises a plurality of pixel units, the driving circuit is configured to generate a plurality of first data-voltage signals at a first time and a plurality of second data-voltage signals at a second time, the processor is configured to obtain and compare one of the plurality of first data-voltage signals and one of the plurality of second data-voltage signals that both are to be received by a same pixel unit of the plurality of pixel units, to obtain a comparison result, and the processor is configured to control, according to the comparison result, the driving circuit and the driving control circuit to drive the pixel unit to work;
wherein the driving control circuit comprises a first transistor, a second transistor, and a time-sequence controller, a first electrode of the first transistor is directly electronically connected to an output end of the driving circuit, a second electrode of the first transistor is directly electronically connected to a first electrode of the second transistor, a grid electrode of the first transistor is directly electronically connected to a grid electrode of the second transistor and is configured to receive a time-sequence signal generated by the time-sequence controller, and a second electrode of the second transistor is grounded, wherein the first transistor and the second transistor are complementary transistors.