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US 12,706,056 B2Granted
Scanning drive circuit, display, and electronic device
AssigneeHuawei Technologies Co., Ltd.
InventorsQiangcan Huang, Keitaro Yamashita, Wei Bai, Xiuling Li
Life of this patent
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Abstract
A scanning drive circuit includes a plurality of stages of first scanning units, a plurality of stages of second scanning units and a first selection circuit, where each stage of first scanning unit includes an output end, each stage of second scanning unit includes an input end and an output end. The first selection circuit includes a first input end, a second input end, and an output end, where the first input end is connected to an output end of any stage of first scanning unit, the second input end is connected to an output end of an (m−1)th stage of second scanning unit, and the output end is connected to an input end of an mth stage of second scanning unit.
Claims20
A scanning drive circuit, comprising:
- multiple stages of first scanners that are sequentially connected, wherein each stage of the first scanners comprises a first output end;
- multiple stages of second scanners that are sequentially connected, wherein each stage of the second scanners comprises a first input end and a second output end;
- and
- at least one first selection circuit, comprising:
- a second input end connected to the first output end of any stage of the first scanners;
- a third input end connected to the second output end of an (m−1)th stage of the second scanners;
- and
- a third output end connected to the first input end of an mth stage of the second scanners,
- wherein the first selection circuit is configured to:
- receive a first selection signal from any stage of the first scanners;
- receive a second selection signal from the (m−1)th stage of the second scanners;
- and
- transmit the first selection signal or the second selection signal to the mth stage of the second scanners, or no signal is transmitted between the first selection circuit and the mth stage of the second scanners.
10 more elements
A display, comprising:
- a plurality of pixel circuits arranged in an array;
- and
- a scanning drive circuit electrically connected to the plurality of pixel circuits and comprising:
- multiple stages of first scanners that are sequentially connected, wherein each stage of the first scanners comprises a first output end;
- multiple stages of second scanners that are sequentially connected, wherein each stage of the second scanners comprises a first input end and a second output end;
- and
- at least one first selection circuit, comprising:
- a second input end connected to the first output end of any stage of the first scanners;
- a third input end connected to the second output end of an (m−1)th stage of the second scanners;
- and
- a third output end connected to the first input end of an mth stage of the second scanners,
- wherein the first selection circuit is configured to:
- receive a first selection signal from any stage of the first scanners;
- receive a second selection signal from the (m−1)th stage of the second scanners;
- and
- transmit the first selection signal or the second selection signal to the mth stage of the second scanners, or no signal is transmitted between the first selection circuit and the mth stage of the second scanners.
13 more elements
An electronic device, comprising:
- a display comprising:
- a plurality of pixel circuits arranged in an array;
- and
- a scanning drive circuit electrically connected to the plurality of pixel circuits and comprising:
- multiple stages of first scanners that are sequentially connected, wherein each stage of the first scanners comprises a first output end;
- multiple stages of second scanners that are sequentially connected, wherein each stage of the second scanners comprises a first input end and a second output end;
- and
- at least one first selection circuit, comprising:
- a second input end connected to the first output end of any stage of the first scanners;
- a third input end connected to the second output end of an (m−1)th stage of the second scanners;
- and
- a third output end connected to the first input end of an mth stage of the second scanners,
- wherein the first selection circuit is configured to:
- receive a first selection signal from any stage of the first scanners;
- receive a second selection signal from the (m−1)th stage of the second scanners;
- and
- transmit the first selection signal or the second selection signal to the mth stage of the second scanners, or no signal is transmitted between the first selection circuit and the mth stage of the second scanners;
- and
- a controller electrically connected to the display and configured to transmit video data, a clock signal, and additional signaling to the display.
16 more elements
Dependencies are inferred from the claim text.