OLED DISPLAY ELEMENT AND OLED DISPLAY DEVICE

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The present invention provides an OLED display element and an OLED display device. The OLED display element comprises a first electrode (2), an organic layer (3) and a second electrode (5) which are stacked from bottom to top in order, and a stabilizing layer (4) sandwiched between the second electrode (5) and the organic layer (3) or between the first electrode (2) and the organic layer (3); a material of the stabilizing layer (4) comprises a rare earth metal or a mixture of the rare earth metal and a mineral salt, which can maintain the stability of the electrode thin film and enhance the reliability of the OLED display element.