대면적 고해상도를 위한 AMOLED(Active Matrix Organic Light Emitting Diode)의 문턱전압 보상회로

A New AMOLED Pixel Structure Compensating Threshold Voltage of TFT for Large-Sized and High Resolution Display

  • 발행 : 2005.07.07

초록

A voltage driving AMOLED(Active Matrix Organic Light Emitting Diode) is useful for large-sized, high resolution OLED display. The conventional 2-TFTs, 1-CAP AMOLED circuit suffer from the threshold voltage variation of TFT. In this paper, a new AMOLED structure is proposed. It is composed of 5-TFTs and 2-capacitors. It is described that the operating principle and the characteristics of the proposed structure and is verified the performance by HSPICE simulation. The result of simulation shows that the effect of the threshold voltage variation in this circuit, is able to neglect.

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