Display panel, preparation method thereof and display device

CN116264873BActive Publication Date: 2026-07-21BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECHNOLOGY GROUP CO LTD
Filing Date
2022-08-24
Publication Date
2026-07-21

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Abstract

A display panel (100) and a preparation method thereof and a display device, the display panel (100) comprising a first electrode layer (2), an electron transport layer (3), a light-emitting layer (4), a hole transport layer (5), a hole injection layer (6) and a second electrode layer (7) which are sequentially stacked. The material of the hole injection layer (6) comprises a first metal oxide and a second metal oxide, the first metal oxide and the second metal oxide both contain a first metal element, the number of outermost electrons of the first metal element in the first metal oxide is different from that in the second metal oxide, that is, the valence of the first metal element in the two metal compounds is different, and therefore the hole injection capability is improved.
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Citation Information

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