A kind of array substrate and its preparation method, display panel

A technology for array substrates and displays, applied in instruments, semiconductor devices, electrical components, etc., can solve the problems of large leakage current, large leakage current, and difficulty in obtaining dark state display.
CN106847834BActive Publication Date: 2019-05-10BOE TECH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2019-05-10

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Abstract

Embodiments of the present invention provide an array substrate, a preparation method thereof, and a display panel, which relate to the field of display technology. By using two types of TFTs on the array substrate, the display panel can have good display performance. The array substrate includes a substrate, a double-gate oxide TFT disposed in each sub-pixel on the substrate, and a display electrode; the drain of the double-gate oxide TFT is electrically connected to the display electrode; It also includes a polysilicon TFT arranged on the substrate.
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Description

technical field

[0001] The present invention relates to the field of display technology, in particular to an array substrate, a preparation method thereof, and a display panel. Background technique

[0002] Currently, thin film transistors (Thin Film Transistor, TFT for short) are the core of display devices, and mainly include the following types: amorphous silicon thin film transistors, polysilicon thin film transistors and oxide thin film transistors.

[0003] Among them, the amorphous silicon material is used as the active layer in the amorphous silicon TFT, and its carrier mobility is only 0.5cm 2 / V·s~1.0cm 2 / V·s, which cannot satisfy large-size, high-resolution display devices.

[0004] Oxide semiconductor materials are used as the active layer in oxide TFTs. Compared with amorphous silicon materials, they have higher carrier mobility, but there is a problem of threshold voltage stability. In practical applications, characteristic drift often occurs .

[0005] In...

Claims

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