Color filter substrate and method for manufacturing the same, OLED display panel and display apparatus

1. A color filter substrate, comprising: a base plate, and a black matrix layer and a barrier pad layer stacked in sequence on the base plate, the barrier pad layer comprising a plurality of barrier pads disposed on the same layer to form supports; wherein

an orthographic projection of a pattern of each barrier pad onto the base plate is located within a region where a pattern of the black matrix layer is located; and

an upper surface and side surfaces of each barrier pad are provided with an auxiliary functional layer for absorption or reflection of a light irradiated on the upper surface and the side surfaces of each barrier pad.

2. The color filter substrate of claim 1 , wherein, the auxiliary functional layer comprises a light absorption layer formed of opaque metal oxide material and covering over each barrier pad.

3. The color filter substrate of claim 1 , wherein, the auxiliary functional layer comprises a light reflection layer formed of metal material and covering over each barrier pad.

4. The color filter substrate of claim 1 , wherein, the auxiliary functional layer comprises: a light reflection layer formed of metal material and covering over each barrier pad, and a light absorption layer formed of opaque metal oxide material and enwrapping an outer side of each barrier pad, which are stacked in sequence on the upper surface and the side surfaces of each barrier pad.

5. The color filter substrate of claim 1 , wherein, material for each barrier pad comprises transparent negative acryl resin material or polyimide resin material.

6. An organic light-emitting display panel comprising a color filter substrate of claim 1 and an array substrate opposite to each other; wherein, the array substrate comprises a RGB light-emitting material layer or a white organic light-emitting diode.

7. A display apparatus comprising an organic light-emitting display panel of claim 6 .

8. A method for manufacturing a color filter substrate, the method comprising steps of:

forming patterns of a black matrix layer and of barrier pads that form supports on a base plate in sequence so that an orthographic projection of the pattern of each barrier pad onto the base plate is located within a region where the pattern of the black matrix layer is located; and

forming a pattern of an auxiliary functional layer for absorption or reflection of a light irradiated on an upper surface and side surfaces of each barrier pad, on the upper surface and the side surface of the pattern of each barrier pad.

9. The method of claim 8 , wherein, the step of forming the pattern of the auxiliary functional layer further comprises sub-steps of:

depositing a layer of opaque metal oxide material on the base plate formed with the pattern of each barrier pad; and

forming, by implementing a patterning process to the opaque metal oxide material, a pattern of a light adsorption layer that covers over the pattern of each barrier pad.

10. The method of claim 8 , wherein, the step of forming the pattern of the auxiliary functional layer further comprises sub-steps of:

depositing a layer of metal material on the base plate formed with the pattern of each barrier pad; and

forming, by implementing a patterning process to the metal material, a pattern of a light reflection layer that covers over the pattern of each barrier pad.

11. The method of claim 10 , after the sub-step of forming the pattern of the light reflection layer, further comprising steps of:

depositing a layer of opaque metal oxide material on the base plate formed with the pattern of the light reflection layer; and

forming, by implementing a patterning process to the opaque metal oxide material, a pattern of a light absorption layer that enwraps an outer side of the barrier pad.