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Display device

A technology for display devices and channel layers, which is applied in semiconductor devices, electrical components, circuits, etc., and can solve problems such as normal operation of devices and reduced reliability of devices

Pending Publication Date: 2022-05-17
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The offset of Vth will affect the characteristics of the device, especially the switching characteristics, so that the device cannot operate normally at the preset voltage or current, thereby reducing the reliability of the device

Method used

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Embodiment Construction

[0069] The following disclosure provides many different embodiments, or examples, for implementing different features of the disclosure. Specific examples of the various components and arrangements of the present disclosure are described below to simplify the description. Of course, these examples are not intended to limit the present disclosure. For example, if a first feature is described as being formed on or over a second feature, it may include embodiments where the first and second features are formed in direct contact, or may include additional features formed on the first feature and the second feature, so that the first feature is not in direct contact with the second feature, and may include embodiments in which the first feature is above the normal direction of the second feature or above the non-normal direction . Additionally, the present disclosure may repeat reference numbers and / or letters in various instances. This repetition is for simplicity and clarity a...

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Abstract

The invention provides a display device. The display device comprises a substrate; the channel layer is arranged on the substrate and comprises a first channel layer and a second channel layer; the first metal layer is arranged on the channel layer and comprises a first grid electrode and a second grid electrode; and the second metal layer is arranged on the first metal layer and comprises a first source electrode, a first drain electrode and a second source electrode. Wherein the first grid electrode, the first source electrode, the first drain electrode and the first channel layer form a first transistor, and the second grid electrode, the second source electrode, the first drain electrode and the second channel layer form a second transistor. The first transistor and the second transistor are connected in parallel.

Description

technical field [0001] The present disclosure relates to a display device, in particular to a display device in which a gate and a source / drain are arranged concentrically. Background technique [0002] In a display device, a thin film transistor (Thin Film Transistor, TFT) is a technology widely used to drive pixels (such as light-emitting elements). However, existing thin film transistors still have some problems. In a new type of display device, a large current is often required to drive a light emitting unit (light emitting unit). However, if a single transistor is used to drive the light-emitting element, the transistor may be subjected to excessive current, which shortens its lifetime or reduces its reliability. [0003] The hump effect of the transistor will reduce the reliability. In current thin film transistors, the edge regions on both sides of the channel layer have a slope profile. In these edge regions, thin layers between the channel layer and the gate (eg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L27/15
CPCH01L27/156H10K59/1213H01L29/78696H01L29/78618H01L29/42384H01L29/41733
Inventor 丁景隆周政旭曾名骏陈韵升张志雄陈良禄
Owner INNOLUX CORP