Patent ID: 11908373
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A display device, comprising a display panel and a display driving circuit configured to drive the display panel to display, wherein the display panel comprises a first display area, a second display area, and a third display area, the display driving circuit comprises a first driving unit, a second driving unit, and a third driving unit, and each of the driving units is controlled independently by one of triggering units, respectively;
the first driving unit is electrically connected to the first display area and configured to drive the first display area to display;
the second driving unit is electrically connected to the second display area and configured to drive the second display area to display; and
the third driving unit is electrically connected to the third display area and configured to drive the third display area to display;
wherein each of the sub driving units comprises:
a pull-up control unit electrically connected to a first clock signal input terminal, a first cascade signal input terminal, and a first node and configured to transmit signals input by the first cascade signal input terminal to the first node under control of signals input by the first clock signal input terminal;
a pull-up unit electrically connected to the first node, a second clock signal input terminal, and a second node and configured to transmit signals input by the second clock signal input terminal to the second node under control of signals of the first node,
wherein the second node is electrically connected to a cascade signal output terminal;
a pull-down unit electrically connected to the second node, a third node, and a second low-voltage signal input terminal and configured to transmit signals input by the second low-voltage signal input terminal to the second node under control of signals of the third node;
a pull-down control unit electrically connected to the first node, a second cascade signal input terminal, and a first low-voltage signal input terminal and configured to transmit signals input by the first low-voltage signal input terminal to the first node under control of signals input by the second cascade signal input terminal; and
a pull-down maintaining unit electrically connected to the first node, the third node, a high-voltage signal input terminal, and the first low-voltage input terminal and configured to transmit signals input by the first low-voltage signal input terminal or signals input by the high-voltage signal input terminal to the third node under the control of the signals of the first node.