Display substrates and display apparatuses

Abstract

A display substrate and a display apparatus. The display substrate includes: a base substrate (): a light-emitting device layer () on the base substrate (); a filter layer () on a side of the light-emitting device layer () away from the base substrate (); and an auxiliary layer () on a side of the filter layer () away from the base substrate (). The light-emitting device layer () includes a plurality of sub-pixels (), which include first sub-pixels () with a blue color and second sub-pixels () with a non-blue color. The filter layer () includes a shading portion () provided with a plurality of openings () and a plurality of filter portions () arranged at intervals, where the filter portions () are at least partially disposed in the openings (), and an orthographic projection of each opening () onto the base substrate () covers an orthographic projection of one sub-pixel () onto the base substrate (). The auxiliary layer () has a lower light transmittance to blue light than that to non-blue light, the auxiliary layer () is provided with a plurality of first hollowed-out portions (), and an orthographic projection of the opening () corresponding to each first sub-pixel () onto the base substrate () falls within an orthographic projection of one first hollowed-out portion () onto the base substrate (). The phenomenon that a display area of the display substrate appears blue in a non-display state of the display substrate can be avoided. Meanwhile, the auxiliary layer has less influence on exit of light emitted from blue sub-pixels during display, thereby ensuring the normal display of the display substrate.