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

Claim 0:
1. 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 plurality of sub-pixels include sub-pixels of three colors; and the emission time control chip includes three groups of output terminals, each group of output terminals include at least one output terminal, and emission time control circuits of sub-pixels of each color are electrically connected to a respective group of output terminals; and
the emission time control chip is configured to transmit emission time control signals with different phases to the sub-pixels of different colors through different groups of output terminals.