CROSS-REFERENCE TO RELATED APPLICATION(S)

The present application claims priority from Chinese Patent Application No. 201811366411.7 filed on Nov. 16, 2018, the disclosure of which is incorporated herein in its entirety by reference.

TECHNICAL FIELD

The present disclosure relates to the field of display technologies, and more particularly, to a source driving circuit and a display panel.

BACKGROUND

In the prior art, in order to reduce the number of source channels, a source driving circuit of a display panel typically utilizes control switches (MUX switches) to switch data paths, that is, one source channel is connected to a plurality of data lines through the control switches, and the control mode includes 1:3 mode and 1:2 mode. Typically, the display panel driven by such source driving circuit operates in a column-based inversion mode, and one source channel is electrically connected to the data lines corresponding to a plurality of sub-pixels through the control switches, such that the source channel sequentially inputs data voltages to data lines connected thereto under the control of the control switches in one row scanning period, thereby reducing the number of source channels. However, the source driving circuit of the prior art has a problem of a relatively large power consumption although the number of source channels is reduced.

SUMMARY

In an aspect of an embodiment of the present disclosure, there is proposed a source driving circuit including a plurality of driving sub-circuits, each of the plurality of driving sub-circuits includes:

a driver, including a plurality of source channels,

a plurality of switches, first terminals of the plurality of switches are electrically connected to a plurality of data lines of a display panel in one-to-one correspondence, wherein each of the plurality of source channels is electrically connected to second terminals of at least two of the plurality of switches, and

a control line, electrically connected to control terminals of the plurality of switches,

wherein sub-pixels corresponding to data lines, that are electrically connected to a same source channel through the switches, have the same polarity and the same color.

In an embodiment, the sub-pixels corresponding to the data lines that are electrically connected to the same source channel through the switches are sequentially adjacent sub-pixels of the same polarity and the same color.

In an embodiment, the source driving circuit is configured to drive a display panel composed of pixel units each including three sub-pixels,

wherein in one driving sub-circuit, a number of the switches is 18, and a number of the source channels is 6, and

wherein a ithsource channel is electrically connected to second terminals of switches corresponding to ith, (i+6)th, and (i+12)thdata lines, respectively, where i is 1, . . . , or 6.

In an embodiment, the control line includes three sub-control lines, and

wherein a jthsub-control line is electrically connected to control terminals of switches corresponding to (6(j−1)+1)th, (6(j−1)+2)th, . . . (6(j−1)+6)thdata lines, where j is 1, 2, or 3.

In an embodiment, the source driving circuit is configured to drive a display panel composed of pixel units each including three sub-pixels,

wherein in one driving sub-circuit, a number of the switches is 12, and a number of the source channels is 6, and

wherein a ithsource channel is electrically connected to second terminals of switches corresponding to ithand (i+6)thdata lines, respectively, where i is 1, . . . , or 6.

In an embodiment, the control line includes two sub-control lines, and

wherein a jthsub-control line is electrically connected to control terminals of switches corresponding to (6(j−1)+1)th, (6(j−1)+2)th, . . . , (6(j−1)+6)thdata lines, where j is 1 or 2.

In an embodiment, the source driving circuit is configured to drive a display panel composed of pixel units each including four sub-pixels,

wherein in one driving sub-circuit, a number of the switches is 12, and a number of the source channels is 4, and

wherein a ithsource channel is electrically connected to second terminals of switches corresponding to ith, (i+4)th, and (i+8)thdata lines, respectively, where i is 1, 2, 3, or 4.

In an embodiment, the control line includes three sub-control lines, and

wherein a jthsub-control line is electrically connected to control terminals of switches corresponding to (4(j−1)+1)th, (4(j−1)+2)th, . . . , (4(j−1)+4)thdata lines, where j is 1, 2, or 3.

In an embodiment, the source driving circuit is configured to drive a display panel composed of pixel units each including four sub-pixels,

wherein in one driving sub-circuit, a number of the switches is 8, and a number of the source channels is 4, and

wherein a ithsource channel is electrically connected to second terminals of switches corresponding to ithand (i+4)thdata lines, respectively, where i is 1, 2, 3, or 4.

In an embodiment, the control line includes two sub-control lines, and

wherein a jthsub-control line is electrically connected to control terminals of switches corresponding to (4(j−1)+1)th, (4(j−1)+2)th, . . . , (4(j−1)+4)thdata lines, where j is 1 or 2.

In another aspect of an embodiment of the present disclosure, there is proposed a display panel including a source driving circuit according to the first aspect.

Other features and advantages of the present disclosure will be set forth in the following description, and will be apparent from the specification or be known to those skilled in the art by implementing the present disclosure. The objectives and other advantages of the present disclosure can be realized and obtained utilizing the structure particularly described in connection with the specification, the appended claims and the accompanying drawing.

