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AMOLED (Active Matrix Organic Light Emitting Diode) pixel structure and manufacturing method thereof

A pixel structure and pixel technology, applied in the direction of instruments, electrical components, electric solid devices, etc., can solve the problems of limitation and low aperture ratio, and achieve the effect of optimizing position, improving aperture ratio, and reducing area

Inactive Publication Date: 2014-11-05
SICHUAN CCO DISPLAY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the light-emitting area of ​​the existing AMOLED device is limited by the circuit area of ​​the pixel, resulting in a relatively low aperture ratio, and proposes an AMOLED pixel structure and a manufacturing method for the above-mentioned pixel structure

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  • AMOLED (Active Matrix Organic Light Emitting Diode) pixel structure and manufacturing method thereof
  • AMOLED (Active Matrix Organic Light Emitting Diode) pixel structure and manufacturing method thereof
  • AMOLED (Active Matrix Organic Light Emitting Diode) pixel structure and manufacturing method thereof

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Embodiment Construction

[0022] The embodiments of the present invention are designed according to the principles of the present invention, and the present invention will be further described below in conjunction with the drawings and specific embodiments.

[0023] An AMOLED pixel structure in this embodiment includes a pixel light-emitting area, a power supply line VDD, a scanning line SCAN, a data line DATA, a switching transistor, a driving transistor, and a storage capacitor. The metal of the power supply line VDD forms the upper electrode of the storage capacitor and is located at A corresponding metal layer is included directly under the metal of the power line VDD as the lower electrode of the storage capacitor, and an interval dielectric ILD is included between the upper electrode and the lower electrode. In order to make the pixel area compact and optimize the pixel display structure, the switch transistor and drive transistor are transferred to the location of the storage capacitor in the 2T1...

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Abstract

The invention discloses an AMOLED (Active Matrix Organic Light Emitting Diode) pixel structure, which comprises a pixel light emitting region, a power line VDD, a scanning line SCAN, a data line DATA, a switching transistor, a driving transistor and a storage capacitor, wherein the power line VDD metal forms the upper electrode of the storage capacitor; a corresponding metal layer is located right below the power line VDD metal to serve as the lower electrode of the storage capacitor; and an interval medium ILD exists between the upper electrode and the lower electrode. The AMOLED (Active Matrix Organic Light Emitting Diode) pixel structure has the beneficial effects that through arranging the storage capacitor below the power line VDD, the area of the basic pixel driving circuit is narrowed, the opening rate of a bottom transmitting AMOLED device is increased, and power consumption efficiency and the service life of the device are improved. According to the above scheme, if the size of the pixel circuit is narrowed through optimizing the storage capacitor of the thin-film transistor while the driving performance of the pixel circuit is not influenced, the opening rate of the pixel is increased, and the power consumption efficiency and the service life of the device are improved.

Description

technical field [0001] The present invention relates to the technical field of active matrix organic electroluminescence display, in particular to a pixel structure of an AMOLED display device with a higher aperture ratio and a method for manufacturing the pixel structure. Background technique [0002] Active matrix organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) device is a new type of flat panel display device for preparing large-size, high-definition organic display devices in the future. The AMOLED device uses an independent thin film transistor (TFT) to control each pixel, and each pixel can be continuously and independently driven to emit light. Such as figure 1 , a typical AMOLED device includes a switch addressing TFT (T1) 60, an OLED driving TFT (T2) 70 and a The storage capacitor (Cst) 50 for the pixel data voltage. [0003] 1. Among them, SCAN40, DATA20 and VDD30 respectively represent scanning lines, data lines and driving pow...

Claims

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Application Information

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IPC IPC(8): G09G3/32H01L27/32G09G3/3225
Inventor 敬启毓李莉莉
Owner SICHUAN CCO DISPLAY TECH
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