Organic light emitting transistor and display device including the same

Abstract

The invention provides an organic light emitting transistor. The organic light emitting transistor includes a substrate, an organic semiconductor layer positioned on the substrate, a source electrode and a drain electrode spaced apart from each other while contacting the organic semiconductor layer, a gate electrode insulated from the organic semiconductor layer, the source electrode and the drain electrode and positioned to overlap the organic semiconductor layer, and an auxiliary electrode overlapping the source electrode or the drain electrode.

Description

technical field [0001] The present invention relates to an organic light emitting transistor and a display device including the same, in particular to an organic light emitting transistor capable of increasing the amount of charge injected into an organic layer and a display device including the same. Background technique [0002] Unlike ordinary thin film transistors (TFT, ThinFilmTransistor), which use amorphous silicon or polysilicon as semiconductor elements, organic light-emitting transistors are transistors that use organic substances as semiconductor elements. Organic substances used as semiconductors in organic light-emitting transistors can be used as p-type monomers or with polymers such as conjugated polymers or thiophene, metal phthalocyanine compounds, and condensed aromatic hydrocarbons such as pentacene. Used in the form of a mixture of other compounds, 1,4,5,8-naphthalene tetracarboxylic anhydride (NTCDA), 11,11,12,12-tetracyanonaphthalene-2,6-quinoline can b...

AI Technical Summary

Problems solved by technology

[0004] The organic material layer that functions as a semiconductor in an organic light-emitting transistor has lower charge mobility than the semiconductor layer of a general TFT

Therefore, the amount of current flowing between the source electrode and the drain electrode of the organic light emitting transistor is small, which may make the degree of light emission of the organic light emitting transistor insufficient.

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