Patent ID: 11915648
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A display apparatus, comprising:
a display panel having a plurality of sub-pixels, each sub-pixel including:
a light emitting device;
a pixel driving circuit configured to provide a driving signal for driving the light emitting device to emit light; and
an emission time control circuit electrically connected between the pixel driving circuit and the light emitting device, and configured to connect the pixel driving circuit to the light emitting device in response to an emission time control signal, so as to control a duration of transmission of the driving signal to the light emitting device; and

an emission time control chip including at least one output terminal, emission time control circuits of the plurality of sub-pixels being electrically connected to the at least one output terminal; and the emission time control chip being configured to transmit emission time control signals to the emission time control circuits of the plurality of sub-pixels through the at least one output terminal, and the emission time control signals being pulse width modulation signals; wherein
the pixel driving circuit further includes a first reset sub-circuit and a second reset sub-circuit, and the display panel further includes an initial voltage terminal and a reset signal terminal;
the first reset sub-circuit is electrically connected to the reset signal terminal, the initial voltage terminal, and the light emitting device, and is configured to transmit an initial voltage signal from the initial voltage terminal to the light emitting device in response to a reset signal from the reset signal terminal; and
the second reset sub-circuit is electrically connected to the reset signal terminal, the initial voltage terminal, and the driving sub-circuit, and is configured to transmit the initial voltage signal to the driving sub-circuit in response to the reset signal.