US 12,406,624 B2
Display drive circuit, display drive method and display panel
Bin Qiu, Chongqing (CN); and Baohong Kang, Chongqing (CN)
Assigned to Chongqing HKC Optoelectronics Technology Co., Ltd, Chongqing (CN); and HKC CORPORATION LIMITED, Shenzhen (CN)
Filed by Chongqing HKC Optoelectronics Technology Co., Ltd., Chongqing (CN); and HKC CORPORATION LIMITED, Shenzhen (CN)
Filed on Mar. 28, 2024, as Appl. No. 18/621,066.
Claims priority of application No. 202310316418.2 (CN), filed on Mar. 28, 2023.
Prior Publication US 2024/0331633 A1, Oct. 3, 2024
Int. Cl. G09G 3/3233 (2016.01); G06F 3/041 (2006.01); G06F 3/044 (2006.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/40 (2023.01); H10K 59/80 (2023.01)
CPC G09G 3/3233 (2013.01) [G06F 3/0412 (2013.01); H10K 59/1201 (2023.02); H10K 59/122 (2023.02); H10K 59/40 (2023.02); H10K 59/80522 (2023.02); G06F 3/0446 (2019.05); G06F 2203/04103 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/0693 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A display drive circuit, comprising: a first drive unit, a second drive unit, a display detection unit and a control unit; wherein,
the control unit is connected with the first drive unit and the second drive unit respectively, and used for sending a data signal to the first drive unit and the second drive unit alternately;
the first drive unit is connected with a first display unit, and used for driving the first display unit to emit light according to the data signal; the second drive unit is connected with a second display unit, and used for driving the second display unit to emit light according to the data signal; and
the display detection unit is connected with the control unit, and used for detecting a first light-emitting brightness of the first display unit and a second light-emitting brightness of the second display unit, and transmitting the first light-emitting brightness of the first display unit and the second light-emitting brightness of the second display unit to the control unit, and the control unit is configured to adjust a first enabling time of the first drive unit according to the received first light-emitting brightness and a second enabling time of the second drive unit according to the second received light-emitting brightness;
wherein the control unit comprises: a first thin-film-transistor, a second thin-film-transistor and a control switch;
a data line of the data signal is connected to an input end of the first thin-film-transistor, the first drive unit is connected to an output end of the first thin-film-transistor, and the control switch is connected to a control end of the first thin-film-transistor; and
the data line of the data signal is connected to an input end of the second thin-film-transistor, the second drive unit is connected to an output end of the second thin-film-transistor, and the control switch is connected to a control end of the second thin-film-transistor;
wherein the control switch comprises: a first control switch and a second control switch, the first control switch is turned on when receiving a first polarity signal, the second control switch is turned on when receiving a second polarity signal, and the first polarity signal and the second polarity signal are opposite-polarity signals; wherein
a switching circuit signal line of a switching circuit signal is connected to a control end of the first control switch, a scanning signal line of a scanning signal is connected to an input end of the first control switch, and an output end of the first control switch is connected with the control end of the first thin-film-transistor; and
the switching circuit signal line is connected to a control end of the second control switch, the scanning signal line is connected to an input end of the second control switch, and an output end of the second control switch is connected with the control end of the second thin-film-transistor-.