Various embodiments and examples are provided in the following description to implement different structures of the present disclosure. In order to simplify the present disclosure, certain elements and settings will be described. However, these elements and settings are only by way of example and are not intended to limit the present disclosure. In addition, reference numerals may be repeated in different examples in the present disclosure. This repeating is for the purpose of simplification and clarity and does not refer to relations between different embodiments and/or settings. Furthermore, examples of different processes and materials are provided in the present disclosure. However, it would be appreciated by those skilled in the art that other processes and/or materials may be also applied.

The present disclosure provides an organic light emitting diode (OLED) display panel. The OLED display panel includes a substrate, and a first gate electrode layer, a source drain (SD) metal layer, and an anode metal layer that are disposed on the substrate. The first gate electrode layer faces a part of the SD metal layer and/or a part of the anode metal layer to form a compensating capacitor therebetween.

FIG. 1 is a structural diagram showing an OLED display panel according to some embodiments of the present disclosure. The OLED display panel includes a substrate 10, a first insulating layer 20, a polycrystalline silicon layer 30, a second insulating layer 40, a first gate electrode layer GE1, a third insulating layer 50, a SD metal layer 60, a fourth insulating layer 70, an anode metal layer 80, a fifth insulating layer 90, a photoresist spacer (PS) layer 100, a light emitting layer (not shown), and an cathode layer (not shown).