Fabricating method of color filter substrate, color filter substrate and display device

A color filter substrate, comprising a substrate, a black matrix and a color filter layer disposed on the substrate;

• the black matrix partitioning a plurality of sub-pixel regions on the substrate, the color filter layer covering over the plurality of sub-pixel regions, the sub-pixel region comprising a transmissive region and a reflective region;
• wherein, a plurality of recesses is provided on the substrate, and a location of each transmissive region in the sub-pixel regions corresponds to a location of a respective recess, wherein the color filter substrate further comprises a planarizing protective layer disposed on a side of the black matrix and of the color filter layer facing away from the substrate;
• wherein the color filter substrate further comprises a backside shielding electrode and a spacer,
• the backside shielding electrode is disposed on a side of the substrate without the black matrix and the color filter layer, and the spacer is disposed on a side of the planarizing protective layer facing away from the substrate.

A display device, comprising a color filter substrate comprising a substrate, a black matrix and a color filter layer disposed on the substrate;

• the black matrix partitioning a plurality of sub-pixel regions on the substrate, the color filter layer covering over the plurality of sub-pixel regions, the sub-pixel region comprising a transmissive region and a reflective region;
• wherein, a plurality of recesses is provided on the substrate, and a location of each transmissive region in the sub-pixel regions corresponds to a location of a respective recess;
• wherein the color filter substrate further comprises a planarizing protective layer disposed on a side of the black matrix and the color filter layer facing away from the substrate;
• and
• wherein the color filter substrate further comprises a backside shielding electrode and a spacer,
• the backside shielding electrode is disposed on a side of the substrate without the black matrix and the color filter layer, and the spacer is disposed on a side of the planarizing protective layer facing away from the substrate.