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Thin film transistor, manufacturing method and control method thereof, display panel and device

A thin-film transistor and display panel technology, which is applied in transistors, semiconductor/solid-state device manufacturing, semiconductor devices, etc., can solve problems such as excessive leakage current of thin-film transistors, and achieve the effect of slowing down the degree of bending

Active Publication Date: 2020-03-10
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present disclosure is to provide a thin film transistor, its preparation method and control method, a display panel, and a display device, so as to solve the problem of excessive leakage current of the thin film transistor

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  • Thin film transistor, manufacturing method and control method thereof, display panel and device
  • Thin film transistor, manufacturing method and control method thereof, display panel and device
  • Thin film transistor, manufacturing method and control method thereof, display panel and device

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Embodiment Construction

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0029] Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities ...

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PUM

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Abstract

The disclosure provides a thin film transistor, a preparation method and a control method thereof, a display panel, and a display device, and relates to the field of display technology. The thin film transistor includes: a first gate, a modulation electrode electrically insulated from the first gate, a semiconductor active layer electrically insulated from both the first gate and the modulation electrode, and a A source and a drain on both sides of the semiconductor active layer and in contact with the semiconductor active layer; wherein, the modulation electrode is set close to the side of the drain for use when the thin film transistor is in an off state An electric field opposite to the first grid is formed. The present disclosure can reduce the leakage current of thin film transistors.

Description

technical field [0001] The present disclosure relates to the field of display technology, in particular to a thin film transistor, a manufacturing method and a control method thereof, a display panel, and a display device. Background technique [0002] With the development of self-luminous display technology, OLED (Organic Light Emitting Diode, Organic Light Emitting Diode Display) gradually replaces traditional LCD (Liquid Crystal Display, Liquid Crystal Display) due to its advantages of low energy consumption, low cost, wide viewing angle, and fast response speed. monitor). [0003] Among them, active-driven OLED displays need to control the on and off of pixels through thin film transistors, so the performance of thin film transistors is very important. LTPS-TFT (Low Temperature Poly Silicon-Thin Film Transistor, Low Temperature Polysilicon-Thin Film Transistor) is widely used in various display devices because of its high electron mobility. However, the leakage current ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L29/41H01L29/786H01L21/336
CPCH01L29/41H01L29/66742H01L29/786H01L29/78645H01L27/124H01L29/66969H01L29/78675H01L29/66757H10K59/123H10K59/1213G02F1/13685H01L29/6675H01L29/7869H01L29/402H10K59/12
Inventor 李俊杰李园园
Owner BOE TECH GRP CO LTD