Display panel, display device and driving method of display panel

A display device, comprising:

• a display panel, wherein the display panel comprises a display region and a non-display region, the display region comprises pixel units arranged in an array, and each of the pixel units comprises sub-pixels having a plurality of colors;
• wherein each of the sub-pixels comprises a pixel circuit and a light-emitting element, and the pixel circuit in each of the sub-pixels comprises a data write module, a light emission control module and a drive transistor;
• the non-display region comprises a multiplexer, and the multiplexer comprises a plurality of data selection units;
• each of the plurality of data selection units comprises one input terminal and a plurality of output terminals, and the plurality of output terminals of each of the plurality of data selection units are electrically connected to a plurality of data lines of the display region in one-to-one correspondence;
• wherein in a same row of pixel units, first control terminals of data write modules of sub-pixels having a first color are connected to a same first scanning line;
• and in a same row of pixel units, first control terminals of data write modules of sub-pixels having other colors except the first color are connected to a same second scanning line;
• wherein the data write module is configured to provide a data signal cached by a data line for the drive transistor;
• the light emission control module is connected in series respectively with the drive transistor and the light-emitting element, and the light emission control module is configured to control whether a drive current flows through the light-emitting element;
• and
• wherein in a same row of pixel units, within time of one frame of a picture, time of providing data signals for data lines connected to sub-pixels having the first color is within time of writing data signals cached by data lines into pixel circuits of sub-pixels having the other colors.

A driving method of a display panel, wherein the display panel comprises a display region and a non-display region, the display region comprises pixel units arranged in an array, and each of the pixel units comprises sub-pixels having a plurality of colors;

• wherein each of the sub-pixels comprises a pixel circuit and a light-emitting element, and the pixel circuit in each of the sub-pixels comprises a data write module, a light emission control module and a drive transistor;
• the non-display region comprises a multiplexer, and the multiplexer comprises a plurality of data selection units;
• each of the plurality of data selection units comprises one input terminal and a plurality of output terminals, and the plurality of output terminals of each of the plurality of data selection units are electrically connected to a plurality of data lines of the display region in one-to-one correspondence;
• wherein in a same row of pixel units, first control terminals of data write modules of sub-pixels having a first color are connected to a same first scanning line;
• and in a same row of pixel units, first control terminals of data write modules of sub-pixels having other colors except the first color are connected to a same second scanning line;
• wherein the data write module is configured to provide a data signal cached by a data line for the drive transistor;
• the light emission control module is connected in series respectively with the drive transistor and the light-emitting element, and the light emission control module is configured to control whether a drive current flows through the light-emitting element;
• and
• wherein in a same row of pixel units, within time of one frame of a picture, time of providing data signals for data lines connected to sub-pixels having the first color is within time of writing data signals cached by data lines into pixel circuits of sub-pixels having the other colors,
• wherein a drive cycle of the display panel comprising a data cache stage, a data write stage and a light emission stage;
• the driving method comprising:
• in the data cache stage, transmitting, by the multiplexer, the data signals to the plurality of data lines to perform caching;
• in the data write stage, providing, by data write modules, the data signals cached by the plurality of data lines for drive transistors;
• and
• in the light emission stage, controlling, by the light emission control module, the drive current to flow through the light-emitting element.