CN202120916U

CN202120916U - Organic light-emitting diode screen body capable of preventing erosion of lead

Info

Publication number: CN202120916U
Application number: CN2011202252174U
Authority: CN
Inventors: 张伸福; 邱勇; 陈红; 高孝裕; 黄秀颀
Original assignee: Kunshan New Flat Panel Display Technology Center Co Ltd
Current assignee: Kunshan New Flat Panel Display Technology Center Co Ltd
Priority date: 2011-06-29
Filing date: 2011-06-29
Publication date: 2012-01-18
Anticipated expiration: 2021-06-29

Abstract

The utility model provides an organic light-emitting diode screen body capable of preventing erosion of a lead. The OLED screen body comprises a base plate and a packaging cover arranged above the base plate. The packaging cover comprises a central main body portion. At least one lateral portion on the surface of the base plate is provided with a lead area comprising a first area for bonding an integral circuit (IC) or a flexible printed circuit (FPC) and a second area adjacent to the first area. Further, the central main body portion extends outward towards one side to form an extension portion for covering the second area, and the extension portion is located on the packaging cover. The fact that water and oxygen are packaged into a relative space during the packaging process is effectively avoided, electrical erosion to the lead is avoided, and service life of the lead screen body is prolonged.

Description

A kind of OLED screen body that prevents to go between and corrode

Technical field

The utility model relates to organic light emission Display Technique field, relates in particular to a kind of OLED screen body that prevents to go between and corrode.

Background technology

Along with the arriving of Development of Multimedia Technology and information-intensive society, increasingly high to the flat-panel monitor performance demands.Newly occurred three kinds of displays in recent years: plasma display, Field Emission Display and display of organic electroluminescence have all remedied the deficiency of cathode ray tube and LCD to a certain extent.Wherein, Display of organic electroluminescence have from main light emission, low-voltage direct drive, solidify entirely, a series of advantage such as the visual angle is wide, color is abundant, compare with LCD, display of organic electroluminescence does not need backlight; The visual angle is big; Power is low, and its response speed can reach 1000 times of LCD, and manufacturing cost but is lower than the LCD of equal resolution.Therefore, display of organic electroluminescence has broad application prospects, and is regarded as one of extremely competitive following flat panel display.

Organic electroluminescence device (Organic Light Emitting Devices; Abbreviation OLED) basic structure is: in the confined space of a glass substrate and cap formation, organic light-emitting units is set; Organic light-emitting units comprises each layers such as anode, organic luminous layer, negative electrode; Anode, negative electrode are drawn by lead-in wire in the non-light-emitting area position, carry out nation with integrated circuit (IC) or flexible PCB (FPC) and decide.

In the prior art, generally adopt in the mode that is electrically connected, Yi Bian the space of screen body electrical connection is all exposed; Treat with various glue it to be covered after intact surely IC of nation or the FPC, the problem that exists like this is again; Cover in the various glue processes, possibly also water oxygen is sealed in the additional space simultaneously, and the lead-in wire that is used to conduct electricity on the screen body is not only tiny; And receive the corrosion of water oxygen easily, in the use, the water oxygen in the seal cavity possibly cause the galvano-cautery of lead-in wire.

Therefore, be necessary to provide a kind of OLED screen body that prevents to go between and corrode, to address the above problem.

The utility model content

The purpose of the utility model has been to provide a kind of OLED screen body that prevents to go between and corrode.

Concrete technical scheme is following:

A kind of OLED screen body that prevents to go between and corrode; The cap that it comprises substrate and is located at the substrate top; Cap comprises central body portion; At least one sidepiece of said substrate surface is provided with the zone that goes between, and the lead-in wire zone comprises in order to nation decides the first area of IC or FPC and the second area adjacent with the first area, and cap also is provided with the extension in order to the covering second area of stretching formation from central body portion towards an epitaxial lateral overgrowth.

Further, said substrate is provided with the packaging plastic zone, and said packaging plastic zone is identical with the cap shape.

Further, the packaging plastic regional integration roughly is concave shape.

Further, the packaging plastic zone passage ultra-violet curing packaging plastic (UV glue) on said cap and the substrate encapsulates.

Further, said substrate upwards prepares successively has anode layer, organic layer and cathode layer.

Further, said cap is provided with the encapsulation hole in the central authorities of substrate one side.

Further, said encapsulation is cheated and is set to rectangle.

Further, said extension is a pair of, all is positioned at a side in encapsulation hole.

Further, said cap is provided with recess between extension, the corresponding setting with the first area of said recess.

Further, said first area is rectangular or trapezoidal, and central body portion and second area roughly are concave shape on the whole.

Can find out that by above technical scheme in this kind OLED screen body structure, cap is through being provided with extension; The second area in lead-in wire zone is covered encapsulation; Can avoid effectively in the encapsulation process water oxygen being sealed in the corresponding space, thereby avoid lead-in wire that galvano-cautery takes place, prolong the useful life of screen body; Simultaneously, the fixed regional substrate intensity of nation in the time of can also increasing screen body sliver.

Description of drawings

Schematic side view for the utility model OLED screen body shown in Figure 1.

Schematic top plan view for substrate in the utility model OLED screen body shown in Figure 2.

Elevational schematic view for cap in the utility model OLED screen body shown in Figure 3.

Wherein, 100 are OLED screen body; 1 is substrate; 11 are the lead-in wire zone; 12 is the packaging plastic zone; 13 is light-emitting zone; 111 is the first area; 112 is second area; 113 are lead-in wire; 2 is cap; 21 is central body portion; 22 is extension; 23 is recess; 24 is the packaging plastic zone; 25 are the encapsulation hole.

Embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer, the utility model is described in detail below in conjunction with accompanying drawing and specific embodiment.

Join the end view sketch map for the utility model OLED screen body 100 preferred forms shown in Figure 1; OLED screen body 100 comprises substrate 1 and is located at the cap 2 of substrate 1 top; Said substrate 1 upwards prepares successively has anode layer, organic layer and cathode layer, and organic layer comprises hole transmission layer, luminescent layer and electron transfer layer.Said substrate 1 is generally and is glass substrate, and said cap 2 is glass packaging lid or metallic packaging lid or Plastic Package lid.

Join the schematic top plan view for substrate 1 in the utility model OLED screen body 100 shown in Figure 2; Said substrate 1 surface is provided with a lead-in wire zone 11; Lead-in wire zone comprise in order to nation decide IC or FPC first area 111 and with the second area 112 of first area 111 adjacent settings; First area 111 is provided with some lead-in wires 113, and said lead-in wire 113 can link to each other with external circuit.Be provided with the both sides of being located at first area 111 of 112, two second areas of two second areas, 112 symmetries in the present embodiment, first area 111 is the rectangle setting with second area 112, and the width of first area 111 equates with the width of second area 112.Be reserved with packaging plastic zone 12 on the substrate 1, packaging plastic zone 12 roughly is concave shape on the whole.Also be provided with light-emitting zone 13 on the substrate 1, said light-emitting zone 13 is enclosed with lead-in wire zone 11 by packaging plastic zone 12 and forms, and the projection of light-emitting zone 13 on substrate 1 is rectangular.

Join the elevational schematic view for cap 2 in the utility model OLED screen body 100 shown in Figure 3; Said cap 2 comprises central body portion 21; And from central body portion 21 stretch towards an epitaxial lateral overgrowth formation in order to covered substrate 1 on the extension 22 of second area 112, form recesses 23 in the middle of said two extensions 22.The housing wire shaped in packaging plastic zone 12 is identical on the housing line of said cap 2 and the substrate 1.Be reserved with packaging plastic zone 24 on the cap 2 equally, packaging plastic zone 24 roughly is concave shape on the whole.The encapsulation hole 25 that is provided with certain depth is being dug by cap 2 central authorities towards a side of substrate 1, substrate 1 upwardly extending organic layer and cathode layer can be accommodated in encapsulation hole 25.The second area 112 corresponding settings in lead-in wire zone 11 on extension 22 on the said cap 2 and the substrate 1; The first area 111 corresponding settings in lead-in wire zone 11 on recess 23 on the cap 2 and the substrate 1; Packaging plastic zone 12 corresponding settings on packaging plastic on the said cap 2 zone 24 and the substrate 1, the encapsulation on the said cap 2 cheat 25 with substrate 1 on light-emitting zone 13 corresponding settings.

During encapsulation; With cap 2 and substrate 1 corresponding placement; Therefore packaging plastic zone 24 on the cap 2 and the packaging plastic zone 12 on the substrate 1 match; Encapsulate fixingly in the packaging plastic on the packaging plastic 2 zone 24 and packaging plastic zone 12 on the substrate 1 through ultra-violet curing packaging plastic (UV glue), have only on the encapsulation metacoxal plate 1 outside first area 111 is exposed to, all packed lid 2 of remainder encapsulates.

A substrate 1 is provided with a lead-in wire zone 11 in the present embodiment; The first lead-in wire zone 111 rectangular settings; But, can be provided with two or more lead-in wires zone on the substrate 1, and first area 111 also is not limited to rectangle according to different demands; Also can be set to other shapes such as for example trapezoidal, to need only need the lead portion that links to each other with external circuit to be exposed to cap and get final product outward.

In this kind OLED screen body structure and the method for packing thereof; Cap 2, can be avoided in the encapsulation process water oxygen being sealed in the corresponding space with the second area 112 covering encapsulation in lead-in wire zone 11 through extension 22 is set effectively; Thereby avoid lead-in wire that galvano-cautery takes place; Prolonged the useful life of screen body, simultaneously, the fixed regional substrate intensity of nation in the time of can also increasing screen body sliver.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.

Claims

1. the OLED who corrodes that prevents to go between shields body; The cap that it comprises substrate and is located at the substrate top; Cap comprises central body portion; At least one sidepiece of said substrate surface is provided with the zone that goes between, and the lead-in wire zone comprises in order to nation decides the first area of IC or FPC and the second area adjacent with the first area, it is characterized in that: cap also is provided with the extension in order to the covering second area of stretching formation from central body portion towards an epitaxial lateral overgrowth.

2. the OLED screen body that prevents to go between and corrode as claimed in claim 1, it is characterized in that: said substrate is provided with the packaging plastic zone, and said packaging plastic zone is identical with the cap shape.

3. the OLED screen body that prevents to go between and corrode as claimed in claim 2, it is characterized in that: the packaging plastic regional integration roughly is concave shape.

4. the OLED screen body that prevents to go between and corrode as claimed in claim 2, it is characterized in that: the packaging plastic zone passage ultra-violet curing packaging plastic (UV glue) on said cap and the substrate encapsulates.

5. the OLED screen body that prevents to go between and corrode as claimed in claim 1, it is characterized in that: said substrate upwards prepares successively has anode layer, organic layer and cathode layer.

6. the OLED screen body that prevents to go between and corrode as claimed in claim 5, it is characterized in that: said cap is provided with the encapsulation hole in the central authorities of substrate one side.

7. the OLED screen body that prevents to go between and corrode as claimed in claim 6, it is characterized in that: said encapsulation hole is set to rectangle.

8. the OLED screen body that prevents to go between and corrode as claimed in claim 7, it is characterized in that: said extension is a pair of, all is positioned at a side in encapsulation hole.

9. the OLED screen body that prevents to go between and corrode as claimed in claim 1, it is characterized in that: said cap is provided with recess between extension, the corresponding setting with the first area of said recess.

10. the OLED screen body that prevents to go between and corrode as claimed in claim 9, it is characterized in that: said first area is rectangular or trapezoidal, and central body portion and second area roughly are concave shape on the whole.