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Double-thin-film transistor and preparation method thereof, and display panel

A technology of dual thin film transistors and thin film transistors, applied in transistors, semiconductor/solid state device manufacturing, electric solid state devices, etc., can solve problems such as low mobility and achieve the effect of improving refresh efficiency

Active Publication Date: 2020-05-01
GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to address the technical problem of low mobility of traditional thin film transistors, to provide a double thin film transistor and its preparation method, display panel

Method used

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  • Double-thin-film transistor and preparation method thereof, and display panel
  • Double-thin-film transistor and preparation method thereof, and display panel
  • Double-thin-film transistor and preparation method thereof, and display panel

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Embodiment Construction

[0052] In order to facilitate the understanding of the present invention, the following will describe the present invention more fully. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0054] It should be noted that the vacuum process in the embodiment of the present invention belongs to the existing technology, which includes but not limited to magnetron sputtering, vacuum thermal ev...

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Abstract

The embodiment of the invention relates to a double-thin-film transistor and a preparation method thereof, and a display panel. The double-thin-film transistor comprises a first thin-film transistor,a second thin-film transistor and a substrate, wherein a hole penetrating from a first surface of the substrate to an opposite second surface is formed in the substrate, the first film transistor is located on a first surface of the substrate, the second film transistor is positioned on a second surface of the substrate, a drain electrode of the first film transistor is electrically connected witha drain electrode of the second film transistor through the hole, so potentials are equal, double output of the leakage current is achieved, and refreshing efficiency of the display panel is improved.

Description

technical field [0001] The invention relates to the field of semiconductor devices, in particular to a double thin film transistor, a preparation method thereof, and a display panel. Background technique [0002] In the current flat panel display, in order to achieve high resolution, thin film transistors are widely used as the basis of active drive display, so as to obtain high-speed image conversion and higher resolution display effect. Among them, thin film transistors are an important part of active driving, and currently mainstream driving devices are amorphous silicon, polysilicon and oxide thin film transistors. Among them, the amorphous silicon thin film transistor (Thin Film Transistor, TFT) device, as a mature driving manufacturing technology, has the characteristics of low cost, less process, and high yield, which makes this driving scheme widely used in low-resolution High-rate TV panels and low-end flat panel displays. For most high-end mobile phones on the ma...

Claims

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Application Information

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IPC IPC(8): H01L27/088H01L21/8234H01L27/12
CPCH01L27/088H01L21/823475H01L27/124
Inventor 李松举付东唐卫东
Owner GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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