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1. A display panel, comprising a substrate, a first electrode, a hole injection layer, a hole transport layer, an electron blocking layer, an organic electroluminescence layer, a hole blocking layer, an electron transport layer, an electron injection layer, and a second electrode disposed sequentially, wherein the organic electroluminescent layer comprises a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region arranged spaced apart from each other, the organic electroluminescent layer comprises a p-type red light host material and a n-type red light host material, and the electron blocking layer corresponding to the red sub-pixel region of the organic electroluminescent layer is made of the p-type red light host material, wherein a portion of the electron blocking layer corresponding to the red sub-pixel region, and the red sub-pixel region of the organic electroluminescent layer, comprise the same p-type red light host material, wherein the p-type red light host material in the portion of the electron blocking layer corresponding to the red sub-pixel region exhibits a highest occupied molecular orbital (HOMO) energy level that matches the HOMO energy level of the red sub-pixel region in the organic electroluminescent layer.
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