Hybrid thin film transistor and organic light emitting display device using the same

Active Publication Date: 2018-02-01
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0020]According to the organic light emitting display device of the present disclosure, the driving transistor with the polycrystalline silicon (LIPS) layer as an active layer and the switching transistor with an oxide semiconductor layer as an active layer are formed on the same substrate, so that a drawback of any one of the thin film transistors is compensated by the other thin film transistor. Specifically, the oxide semiconductor thin film transistor is provided so that it is possible to provide an organic light emitting display device suitable for a portable and

Problems solved by technology

The turn-on time of the transistor is related to power consumption of the organic light emitting display device.
Howev

Method used

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  • Hybrid thin film transistor and organic light emitting display device using the same
  • Hybrid thin film transistor and organic light emitting display device using the same
  • Hybrid thin film transistor and organic light emitting display device using the same

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Embodiment Construction

[0026]Advantages and characteristics of the present disclosure and a method of achieving the advantages and characteristics will be clear by referring to exemplary embodiments described below in detail together with the accompanying drawings. However, the present disclosure is not limited to exemplary embodiment disclosed herein but will be implemented in various forms. The exemplary embodiments are provided by way of example only so that a person of ordinary skilled in the art can fully understand the disclosures of the present disclosure and the scope of the present disclosure. Therefore, the present disclosure will be defined only by the scope of the appended claims.

[0027]The shapes, sizes, ratios, angles, numbers, and the like illustrated in the accompanying drawings for describing the exemplary embodiments of the present disclosure are merely examples, and the present disclosure is not limited thereto.

[0028]Further, in the following description of the present disclosure, a detaile

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Abstract

Different types of thin film transistors are disposed on the same flexible substrate and an organic light emitting display using the same includes a display area and a non-display area; a first buffer layer over an entire surface of the flexible substrate; a driving transistor on the buffer layer in the display area, the driving transistor including a polycrystalline silicon (LIPS) layer, a first gate electrode, a first source electrode, and a first drain electrode; a capacitor electrode on the first source electrode of the driving transistor and forming a storage capacitor together with the first source electrode; a switching transistor in the display area to be spaced apart from the driving transistor; and a dummy electrode on the switching transistor, the dummy electrode formed of the same material as the capacitor electrode, and disposed on the same plane as the capacitor.

Description

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Claims

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Application Information

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Owner LG DISPLAY CO LTD
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