Display panel and display device

Abstract

The embodiment of the invention discloses a display panel and a display device. The display panel comprises a substrate base plate; a first transistor and a second transistor, which are formed on the substrate, wherein the first transistor comprises a first active layer, a first grid electrode, a first source electrode and a first drain electrode, and the first active layer comprises silicon, the second transistor comprises a second active layer, a second grid electrode, a second source electrode and a second drain electrode, wherein the second active layer comprises an oxide semiconductor, and the second active layer is located on the side, away from the substrate, of the first active layer; a first insulating layer and a second insulating layer, wherein the first insulating layer is located on the side, away from the substrate, of the second active layer and located between the second grid electrode and the second active layer, and the second insulating layer is located on the side, facing the substrate, of the second active layer, wherein the concentration of the oxygen element in the first insulating layer is smaller than the concentration of the oxygen element in the second insulating layer. The effects of improving the stability of the second transistor and ensuring good performance of the driving circuit are achieved.

Description

Technical field[0001]Embodiments of the present invention relate to the field of display, and more particularly to a display panel and a display device.Background technique[0002]Organic Light-Emitting Diode, OLED display panel is widely received by people because of the advantages of self-luminous, high contrast, thin, and fast response speed, can be used for flexible panels.[0003]The OLED display panel belongs to the current drive type element, which requires setting the corresponding pixel circuit and the driving circuit, the drive circuit provides a driving signal for the pixel circuit, so that the pixel circuit provides a driving current to the OLED element, drive the OLED element to illuminate. A transistor is provided in the drive circuit of the OLED display panel and the pixel circuit. Transistors often use indium gallium gallium zinc oxide, IGZO as an active layer to reduce leakage flow in transistors. However, the stability of the IGZO transistor in the prior art is poor, a...

AI Technical Summary

Problems solved by technology

However, the stability of the IGZO transistor in the prior art is poor, which in turn affects the performance of the drive circuit and / or pixel circuit, and affects the display effect of the display panel.

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