CN201000889Y

CN201000889Y - Organic electroluminescent device

Info

Publication number: CN201000889Y
Application number: CNU2007200311881U
Authority: CN
Inventors: 牟强; 王秀峰; 袁桃丽; 李新贝
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2007-02-06
Filing date: 2007-02-06
Publication date: 2008-01-02
Anticipated expiration: 2017-02-06

Abstract

The utility model relates to a plexiglass electric light emitting device, which comprises an upper glass base plate and a lower glass base plate, a plurality of groups of negative electrode and positive electrode which plumbs the glass base plate plane are arranged between the upper glass base plate and the lower glass base plate, a plexiglass layer is arranged between the negative electrode and the positive electrode, each negative electrode connects with each other through a scanning wire, each positive electrode connects with each other through a signal wire, and a insulating layer is arranged between the positive electrode and the scanning wire. The utility model mainly comprises the negative electrode, the positive electrode and the plexiglass layer; the arrangement of the structure is changed for an ITO membranous layer is removed, to reduce the whole cubic measure of the plexiglass layer, thus the emergent light rate is effectively improved, and the lumen efficiency is improved. The other advantage of the utility model is that a drive matrix with power source can be produced expediently at one side of the glass base plate.

Description

A kind of organic electroluminescence device

Technical field

The utility model belongs to the flat panel display field, is specifically related to a kind of organic electroluminescence device.

Background technology

Along with the day by day raising of people to the vision requirement, the Display Technique fast development, day by day, the situation that a hundred flowers blossom, show that from cathode-ray tube display (CRT), liquid crystal display (LCD), plasma (PDP) shows (FED) to ORGANIC ELECTROLUMINESCENCE DISPLAYS (OLED) and electroluminescent, numerous.Science and technology development is maked rapid progress, and the Display Technique field also a revolution is taking place, and various new technology of flat (FPD) are arisen at the historic moment.Cathode-ray tube display (CRT) exists that volume is big, power consumption is high and the shortcoming of radiativity, loses the dominance in demonstration field gradually; And flat panel display is described as a kind of Chaoyang technology, is the main flow of 21st century Display Technique development, thereby has been subjected to people's extensive attention, and it not only will have perfect display quality, and needs at volume, aspect such as energy-conservation more improvement is arranged.LCD, PDP and OLED are three big main flows of flat panel display, wherein OLED with its material extensively, advantage such as rich color, cost of manufacture be cheap, be a kind of big rising flat panel display, be considered to one of present state-of-the-art Display Technique.

The OLED Display Technique, be that a kind of electroluminescence shows, it by anode glass substrate and cathode glass substrate by preparing organic layer betwixt and Vacuum Package is in the same place, powering up on the cathode base of back has electronics to inject, anode has the hole to inject, under electric field action, electronics and the hole formation exciton that in organic layer, meets, exciton is compound and luminous; At present, the subject matter of OLED is the packaged water equality of low, device of life-span, the luminous efficiency of organic material.Wherein, the reason that luminous efficiency is low has following several.Electron injection efficiency is low, has influence on the compound probability with the hole, thereby influences luminous efficiency; Emergent light efficient, because absorption, the scattering of organic layer, effects such as the reflection of ITO layer, waveguide make that emergent light efficient is lower.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of a kind of organic electroluminescence device that can improve the power efficiency and the luminous efficiency of organic electroluminescence device effectively is provided.

For achieving the above object, the technical solution adopted in the utility model is: comprise top glass substrate, lower glass substrate, be characterized in, between top glass substrate and lower glass substrate, be provided with some groups of negative electrodes and anode perpendicular to the glass substrate plane, be provided with organic layer between negative electrode and the anode, each negative electrode is connected by scan line, and each anode is connected by holding wire, and also is provided with insulating barrier between anode and scan line.

The utility model mainly is made up of negative electrode, anode and organic layer three parts; Owing to changed topology layout, removed the ITO rete, reduced the overall volume of organic layer, can effectively improve the emergent light ratio, improve luminous efficiency.Its another one advantage is exactly to make active driving matrix easily on a side glass substrate.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.

Referring to Fig. 1, the utility model comprises top glass substrate 6, lower glass substrate 7, between top glass substrate 6 and lower glass substrate 7, be provided with some groups of negative electrodes 3 and anode 4 perpendicular to the glass substrate plane, be provided with organic layer 5 between negative electrode 3 and the anode 4, each negative electrode is connected by scan line 1, each anode is connected by holding wire, and also is provided with insulating barrier 2 between anode 4 and scan line 1.

The utility model links to each other delegation's negative electrode 3 by scan line 1, by holding wire 8 a row anode 4 is linked to each other, if the anode of a sub-pixel 4 is chosen simultaneously with negative electrode 3, then organic layer 5 is excited luminous in this sub-pixel.In traditional structure, parallel with the glass planar successively stack of anode, organic layer, negative electrode, the utility model then is to arrange in vertical glass substrate plane.Negative electrode 3 injects electronics to organic layer 5 under electric field action, anode is injected hole then, organic layer 5 finish electronics and hole transmission, form exciton and produce compound luminously at last, light direction is along the direction of vertical glass substrate.The utility model does not use ito glass, makes organic light emission reduce by a barrier layer in transmission, has reduced absorption, reflection and the scattering etc. of emergent light in organic layer inside simultaneously, thereby improves luminous efficiency.

Claims

1, a kind of organic electroluminescence device, comprise top glass substrate [6], lower glass substrate [7], it is characterized in that: between top glass substrate [6] and lower glass substrate [7], be provided with some groups of negative electrodes [3] and anode [4] perpendicular to the glass substrate plane, be provided with organic layer [5] between negative electrode [3] and the anode [4], each negative electrode is connected by scan line [1], each anode is connected by holding wire, and also is provided with insulating barrier [2] between anode [4] and scan line [1].