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Electroluminscence multi-color displayed high-molecular film and preparation method thereof

A polymer thin film and light-emitting display technology, applied in the direction of electroluminescence light source, electric light source, light source, etc., can solve the problems of long time, complicated process, low yield, etc., and achieve the effect of easy realization and easy large-area film

Inactive Publication Date: 2003-08-06
GUANG ZHOU NEW VISION OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this method is that in the process of preparing color light-emitting display devices, it is necessary to prepare more than nine organic layers, more than two transparent electrode layers, and three metal layers at the same time, and the process is very complicated. Long time, resulting in high cost and low yield

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  • Electroluminscence multi-color displayed high-molecular film and preparation method thereof
  • Electroluminscence multi-color displayed high-molecular film and preparation method thereof
  • Electroluminscence multi-color displayed high-molecular film and preparation method thereof

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Embodiment Construction

[0028] The best embodiment of the present invention is to adopt ITO transparent conductive glass as substrate, prepare PEDOT (polyaniline derivative) hole transport layer (thickness 70nm) with spin coating method, heat 70 ℃ in vacuum oven, 2 hours . Select high luminous efficiency and hole-transporting polymer materials with red (poly-p-acetylene derivative MEHPPV), green (poly-p-acetylene derivative P-PPV) and blue (polyfluorene PF) luminescent colors. The molecular structure is as follows : MEHPPV, P-PPV and PF were dissolved in toluene solvent to prepare toluene solutions of 0.5mol / ml, 1mol / ml and 2mol / ml, respectively, and the three polymer uniform films were prepared by spin coating method. On the PEDOT polymer film, blue (PF) light-emitting film (thickness 60nm), green (P-PPV) light-emitting film (thickness 50nm) and red (MEH-PPV) light-emitting film (thickness 50nm) were made in turn. Metal electrodes with low work function (Ca-4nm / Al-200nm) are vacuum-evaporated behi...

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Abstract

This invention relates to high polymer thin film of electricity-making multicolor illuminant display and its preparation method in which, the said film is composed of transparent substrate, transparent electrode, hole transmission layer, multilayer polymer film and metal electrode film laminated and the metal electrode layers coat between the first and second, the second and the third, and on thethird polymer layers, all metal electrodes are not blocked by each other viewing from the direction vertical to the film. This invention realizes color polymer illuminant display by modulation and control electronics and hole carrier transmission process, utilizing the exciting energy of high-gap polymer illuminant material easy to transit to that of low-gap amont molecules.

Description

technical field [0001] The invention relates to an electroluminescent material for realizing color display, more specifically a polymer film for electroluminescent multicolor display. [0002] The invention also relates to a preparation method of the polymer film for electroluminescence display. Background technique [0003] The phenomenon that electroluminescent devices constructed of polymer films can obtain bright luminescence under low voltage driving is gradually applied to various types of flat panel displays, such as mobile phones, PDAs, computer display terminals, TVs, and various instrument displays. As a polymer light-emitting device for display, it has many incomparable advantages of similar devices: ultra-thin, light weight, active light emission, wide viewing angle, high efficiency, high brightness, simple process, low power consumption, low cost, flexible screen display, etc. . The basic structure of this polymer display device includes two layers of electrod...

Claims

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Application Information

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IPC IPC(8): H05B33/10H05B33/14
Inventor 彭俊彪曹镛杨伟莫越奇高维先
Owner GUANG ZHOU NEW VISION OPTO ELECTRONICS TECH