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Thin Film Transistor And Display Device Including Same

A technology for display devices and semiconductors, which is applied to transistors, electric solid state devices, semiconductor devices, etc., can solve problems such as deterioration, deterioration of electrical characteristics, and deterioration of reliability of display devices, and achieve the effect of preventing deterioration of electrical characteristics.

Pending Publication Date: 2021-07-16
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the semiconductor layer of the oxide semiconductor material is degraded by hydrogen (H)
Therefore, the electrical characteristics of the TFT deteriorate, thereby deteriorating the reliability of the display device

Method used

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  • Thin Film Transistor And Display Device Including Same
  • Thin Film Transistor And Display Device Including Same
  • Thin Film Transistor And Display Device Including Same

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] Reference will now be made in detail to aspects of the present disclosure, examples of which are illustrated in the accompanying drawings.

[0027] figure 1 is a cross-sectional view showing a sub-pixel of the display device according to the first embodiment of the present disclosure.

[0028] exist figure 1 Among them, the display device 110 according to the first embodiment of the present disclosure includes a substrate 120, a switching thin film transistor (TFT) (not shown), a driving TFT Tdr, a sensing TFT (not shown), a storage capacitor (not shown) and Light Emitting Diodes (Del).

[0029] The substrate 120 includes a plurality of pixels. Each of the plurality of pixels includes a plurality of sub-pixels SP, and each of the plurality of sub-pixels SP includes an emission area EA and a circuit area CA.

[0030] For example, the substrate 120 may include glass or a flexible material such as polyimide (PI), and the plurality of sub-pixels SP may emit light corres...

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PUM

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Abstract

A display device includes a substrate, a semiconductor layer on the substrate, a gate insulating layer on the semiconductor layer, a first upper hydrogen blocking layer on the gate insulating layer and having a positive hydrogen formation energy, a first upper hydrogen capturing layer on the first upper hydrogen blocking layer corresponding to a central portion of the semiconductor layer and having a negative hydrogen formation energy, a gate electrode on the first upper hydrogen capturing layer, a source electrode and a drain electrode connected to both end portions of the semiconductor layer, and a passivation layer on the gate electrode, the source electrode and the drain electrode.

Description

[0001] Cross References to Related Applications [0002] This application claims priority benefit from Korean Patent Application No. 10-2019-0177271 filed in Korea on December 30, 2019, the entire contents of which are hereby incorporated by reference for all purposes as if fully set forth herein. technical field [0003] The present disclosure relates to a thin film transistor, and more particularly, to a thin film transistor that minimizes performance degradation due to hydrogen and a display device including the same. Background technique [0004] Recently, devices such as liquid crystal display (LCD) devices, plasma display panel (PDP) devices, organic light emitting diode (OLED) display devices, and field emission display (FED) devices having excellent properties of thin profile, light weight, and low power consumption have been developed. ) devices, and these FPDs have been applied to various fields. [0005] In the FPD, a plurality of sub-pixels display images using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L29/786H01L27/32
CPCH01L29/7869H01L29/78606H10K59/1213H01L29/78648H10K59/123H10K59/126H01L29/42384H01L27/1237H10K50/846
Inventor 李勝敏
Owner LG DISPLAY CO LTD