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Thin film transistor and preparation method thereof, array substrate and display device

A technology of thin film transistors and array substrates, which is applied in the field of flexible displays and can solve problems such as easy breakage of metal wires

Inactive Publication Date: 2016-05-04
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to solve the problem that metal wires are prone to breakage in a bent state, and to provide a thin film transistor that is not prone to metal wire breakage in a bent state.

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  • Thin film transistor and preparation method thereof, array substrate and display device
  • Thin film transistor and preparation method thereof, array substrate and display device

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] see figure 1 , figure 1 It is a schematic cross-sectional view of the thin film transistor of Example 1. The thin film transistor includes a substrate 100 , a semiconductor layer 300 sequentially located on the substrate 100 , a gate insulating layer 400 , a gate 500 , a spin-coated layer 600 and a source-drain 700 .

[0029] In this embodiment, the base 100 is a flexible substrate.

[0030] In this embodiment, a buffer layer 200 is further provided between the substrate 100 and the semiconductor layer 300 . That is, the buffer layer 200 is located on the substrate 100 , and the semicond...

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Abstract

The invention relates to a thin film transistor. The thin film transistor comprises a substrate and a semiconductor layer, a gate insulation layer, a gate, a spin coating layer, source and drain electrodes located on the substrate sequentially, wherein the source and drain electrodes are contacted with the semiconductor layer via through holes passing through the spin coating layer and the gate insulation layer; and the spin coating layer is an electric insulation layer. Through arranging the spin coating layer, as the upper surface of the spin coating layer is flat, rough factors of each layer below the spin coating layer are eliminated, the parts, located above the spin coating layer, of the source and drain electrodes are flat, and thus the problem that the source and drain electrodes are not flat can be avoided, and disconnection of a metal line of the source and drain electrodes can be avoided. The invention also discloses a thin film transistor preparation method, an array substrate and a display device.

Description

technical field [0001] The present invention relates to the field of flexible display technology, in particular to a thin film transistor and a preparation method thereof, an array substrate, and a display device. Background technique [0002] With the continuous development of display technology, foldable or rollable flexible display devices have been developed. Compared with traditional rigid display devices (that is, display devices fabricated on inflexible substrates such as glass), flexible display devices have many advantages, such as light weight, small size, more convenient portability, and higher impact resistance And stronger anti-seismic performance, etc. [0003] The main problem currently faced by flexible display devices is that the thin film transistor (ThinFilm Transistor, TFT for short) in the pixel unit or the peripheral driving circuit is prone to breakage of the metal wire when it is bent, resulting in the failure of the TFT to work normally, so that the...

Claims

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Application Information

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IPC IPC(8): H01L27/12H01L29/786H01L21/336
CPCH01L27/1237H01L27/1259H01L29/66742H01L29/786
Inventor 习王锋施露顾维杰于锋刘金强周斯然
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT
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