Pixel circuit, display panel, display device and driving method

A display panel, comprising:

• a silicon substrate,
• a plurality of display units and a plurality of storage units fabricated on the silicon substrate;
• and
• a data driving circuit disposed on the silicon substrate;
• wherein the plurality of storage units correspond to the plurality of display units one to one, and the plurality of storage units are respectively configured to receive and store display data of the plurality of display units corresponding to the plurality of storage units;
• the data driving circuit is connected with the display units and the storage units;
• and the data driving circuit is configured to load the display data stored in the storage units into the display units;
• the data driving circuit comprises a gamma voltage circuit, a plurality of switch circuits, and a plurality of decoding circuits;
• each decoding circuit of the decoding circuits is electrically connected with one storage unit, one switch circuit and one data line, and the each decoding circuit is configured to turn on one switch device of the switch circuits according to the display data stored in the storage units;
• each of the switch circuits is electrically connected with a plurality of gray-scale output terminals of the gamma voltage circuit through a plurality of switch devices in each of the switch circuits one by one;
• and the gamma voltage circuit is configured to generate a plurality of gray-scale voltages, and output the gray-scale voltages to a data line electrically connected with a turned-on switch device through the turned-on switch device of each of the switch circuits.