Array substrate, display apparatus, and electronic device

A display apparatus, comprising:

• a plurality of microcup units, each of the microcup units comprising at least one microcup, and electrophoretic particles being encapsulated in each of the at least one microcup;
• an array substrate, comprising
• a first base and a plurality of pixel units arranged in an array on the first base, the plurality of pixel units being in one-to-one correspondence to the plurality of microcup units, each of the pixel units comprising a first pixel electrode and a first common electrode that are disposed on the first base, and
• an insulating layer covering the first pixel electrode and the first common electrode of each of the pixel units, a surface of the insulating layer facing away from the first base being provided with grooves/a groove corresponding to the first pixel electrode and/or the first common electrode of each of the pixel units, a width of the groove being less than that of the corresponding electrode, the groove being configured to gather the electrophoretic particles in the corresponding microcup
• a second base disposed opposite the array substrate;
• and
• a plurality of microcup units disposed between the array substrate and the second base, the plurality of microcup units being in one-to-one correspondence to the plurality of pixel units comprised in the array substrate.

An electronic device, comprising:

• a host;
• and
• a display apparatus, wherein the display apparatus comprises:
• a plurality of microcup units, each of the microcup units comprising at least one microcup, and electrophoretic particles being encapsulated in each of the at least one microcup;
• an array substrate, comprising
• a first base and a plurality of pixel units arranged in an array on the first base, the plurality of pixel units being in one-to-one correspondence to the plurality of microcup units, each of the pixel units comprising a first pixel electrode and a first common electrode that are disposed on the first base, and
• an insulating layer covering the first pixel electrode and the first common electrode of each of the pixel units, a surface of the insulating layer facing away from the first base being provided with grooves/a groove corresponding to the first pixel electrode and/or the first common electrode of each of the pixel units, a width of the groove being less than that of the corresponding electrode, the groove being configured to gather the electrophoretic particles in the corresponding microcup
• a second base disposed opposite the array substrate;
• and
• a plurality of microcup units disposed between the array substrate and the second base, the plurality of microcup units being in one-to-one correspondence to the plurality of pixel units comprised in the array substrate.