Display substrate, display panel, display apparatus, and method of fabricating display substrate

A method of fabricating a display substrate, comprising forming a respective encapsulated unit and forming a separation structure substantially surrounding the respective encapsulated unit;

• wherein forming the respective encapsulated unit comprises:
• forming a color conversion layer comprising one or more color conversion blocks;
• forming a respective encapsulating block in an encapsulating layer encapsulating the one or more color conversion blocks;
• and
• forming a base substrate on a side of the color conversion layer away from the respective encapsulating block, and on a side of the color conversion layer away from the encapsulating layer;
• wherein the encapsulating layer is at least partially absent in a peripheral region around the respective encapsulated unit;
• and
• the color conversion layer is on a side of the base substrate closer to the encapsulating layer, and on a side of the encapsulating layer closer to the base substrate;
• wherein the display substrate further comprises a plurality of light emitting elements on a side of the encapsulating layer away from the base substrate;
• wherein the separation structure comprises a first residual encapsulating layer comprising a ring substantially surrounding the respective encapsulated unit;
• the first residual encapsulating layer is at least partially absent in the peripheral region around the respective encapsulated unit;
• and
• the first residual encapsulating layer and the encapsulating layer are in a same layer.

A display substrate, comprising a respective encapsulated unit and a separation structure substantially surrounding the respective encapsulated unit;

• wherein the separation structure comprises a stacked structure having a first residual layer and a second residual layer stacked on each other;
• an orthographic projection of the second residual encapsulating layer on a base substrate covers an orthographic projection of the first residual layer on the base substrate;
• in a cross-section along a plane perpendicular to a surface of the base substrate and intersecting the respective encapsulated unit, the first residual layer, and the second residual layer, the second residual layer has a width greater than a width of the first residual layer;
• and
• the second residual layer is on a side of the first residual layer away from the base substrate;
• wherein the respective encapsulated unit comprises:
• a color conversion layer comprising one or more color conversion blocks;
• and
• a respective encapsulating block in an encapsulating layer encapsulating the one or more color conversion blocks;
• wherein the encapsulating layer is at least partially absent in the peripheral region around the respective encapsulated unit;
• wherein the color conversion substrate further comprises the base substrate on a side of the color conversion layer away from the respective encapsulating block;
• and
• the color conversion layer is on a side of the base substrate closer to the encapsulating layer, and on a side of the encapsulating layer closer to the base substrate;
• wherein the display substrate further comprises a plurality of light emitting elements on a side of the encapsulating layer away from the base substrate.