CN1617637A - Organic electroluminescent display panel and its package glue thereof - Google Patents
Organic electroluminescent display panel and its package glue thereof Download PDFInfo
- Publication number
- CN1617637A CN1617637A CNA2003101143254A CN200310114325A CN1617637A CN 1617637 A CN1617637 A CN 1617637A CN A2003101143254 A CNA2003101143254 A CN A2003101143254A CN 200310114325 A CN200310114325 A CN 200310114325A CN 1617637 A CN1617637 A CN 1617637A
- Authority
- CN
- China
- Prior art keywords
- organic electric
- excitation luminescent
- displaying panel
- sealing
- luminescent displaying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
An organic electric-exitation luminous display panel contains a base plate, a cover plate and a sealing adhesive. At least one organic electric exitation luminous element is set on the base plate, among which, the adhesive is doped with multiple solid objects for sealing the base plate and the cover plate to form a containing space. The invented solid objects can increase the diffusing paths and time of outside moisture and oxygen in the adhesive to prolong the life time of the panel.
Description
Technical field
The present invention is meant the sealing of a kind of organic electric-excitation luminescent displaying panel and usefulness thereof especially about the sealing of a kind of display floater and usefulness thereof.
Background technology
Light-emitting component is towards high brightness, complanation, the frivolous and trend development of economizing the energy in recent years, and in view of this, organic electric-excitation luminescent (OEL) display unit becomes one of direction of utmost point desire development in the present opto-electronics.Organic electroluminescence display device is the device that a kind of self-luminous characteristic of utilizing organic functional material (organic functional materials) reaches display effect, molecular weight difference according to the organic functional material, it can be divided into micromolecule organic electroluminescence display device (small molecule OLED, SM-OLED) with macromolecule organic electroluminescence display device (polymer light-emitting display, PLED) two big classes.
Shown in Figure 1A, the basic structure of general organic electric-excitation luminescent displaying panel 4 comprises a transparency carrier 41, one first electrode 42, a luminous zone 43, one second electrode 44 and a cover plate 45, wherein, luminous zone 43 is between first electrode 42 and second electrode 44, first electrode 42 is formed on the transparency carrier 41, and cover plate 45 utilizes one to stick together glue 46 and be attached on the transparency carrier 41.Because organic illuminating element (luminous zone 43) is very responsive for moisture content and oxygen, with be easy to generate dim spot (Dark Spot) after atmosphere contacts, so utilizing, organic electric-excitation luminescent displaying panel 4 sticks together glue 46 involution transparency carriers 41 and cover plate 45, to avoid the invasion of outside moisture and oxygen.
Yet, because it is low than transparency carrier 41 and cover plate 45 to stick together the penetration capacity of extraneous moisture content of 46 pairs of opposings of glue and oxygen, so extraneous moisture content and oxygen diffuse to element internal via sticking together glue 46 easily, cause the shortening in 4 life-spans of organic electric-excitation luminescent displaying panel and the reduction of stability.Simultaneously, when organic electric-excitation luminescent displaying panel 4 in use for some time, stick together glue 46 deform easily, rotten or produce the situation of slight crack, also can influence the life-span of integral panels and the stability of panel.
For solving this problem; shown in Figure 1B; also there is the dealer directly on transparency carrier 41, first electrode 42, luminous zone 43, one second electrode 44, to deposit the usefulness of a silicon nitride film 47 as protective layer; yet the internal stress of silicon nitride film 47 is high, causes first electrode 42 to separate with transparency carrier 41 easily and produces the situation of peeling off.
The inventor whence originally in the spirit of positive invention, is urgently thought a kind of " sealing of organic electric-excitation luminescent displaying panel and usefulness thereof " because of in this, and several times research experiment is eventually to the invention of finishing this Jiahui common people.
Summary of the invention
The purpose of this invention is to provide a kind of stop moisture content and the organic electric-excitation luminescent displaying panel of oxygen invasion and the sealing of usefulness thereof.
For reaching above-mentioned purpose, comprise a substrate, a cover plate and a sealing according to a kind of organic electric-excitation luminescent displaying panel of the present invention; Wherein, sealing is doped with a plurality of decorating films, in order to substrate and cover plate involution, to form an accommodation space.
For reaching above-mentioned purpose, according to the sealing that a kind of organic electric-excitation luminescent displaying panel of the present invention is used, a substrate of its involution one organic electric-excitation luminescent displaying panel and a cover plate; Wherein, sealing is doped with a plurality of decorating films.
From the above, the sealing of organic electric-excitation luminescent displaying panel of the present invention and usefulness thereof a plurality of decorating films that in sealing, mix.Compared with prior art, decorating film of the present invention can increase outside moisture and the evolving path and the diffusion time of oxygen in sealing, uses the useful life and the stability that promote panel.In addition, decorating film has damaged organic electroluminescent element (organic functional layer) in the time of more can avoiding encapsulating pressing, improves the process rate of organic electric-excitation luminescent displaying panel.Moreover, decorating film can control basal plate and cover plate between the pressing distance, more can in panel, provide one the accommodation space that removes water unit is set, utilize and remove the aqueous vapor that water unit is removed panel inside.And, when decorating film is when removing water substance or free radical scavenger, also can improve the useful life of panel and the reliability of operation.Again, decorating film can increase the contact area in the sealing, has more strengthened sealing strength.
Hereinafter with reference to relevant drawings, illustrate according to the organic electric-excitation luminescent displaying panel of preferred embodiment of the present invention and the sealing of usefulness thereof.
Description of drawings
Figure 1A is a schematic diagram of existing organic electric-excitation luminescent displaying panel;
Figure 1B is another schematic diagram of existing organic electric-excitation luminescent displaying panel;
Fig. 2 is a schematic diagram of the organic electric-excitation luminescent displaying panel of first embodiment of the invention;
Fig. 3 is another schematic diagram of the organic electric-excitation luminescent displaying panel of first embodiment of the invention; And
Fig. 4 A and Fig. 4 B are one group of schematic diagram of the sealing used of the organic electric-excitation luminescent displaying panel of second embodiment of the invention.
Symbol description among the figure
1 organic electric-excitation luminescent displaying panel
11 substrates
12 cover plates
13 sealings
131 decorating films
14 organic electroluminescent elements
141 first electrodes
142 organic functional layers
143 second electrodes
15 remove water unit
The sealing that 2 organic electric-excitation luminescent displaying panels are used
21 decorating films
3 organic electric-excitation luminescent displaying panels
31 substrates
32 cover plates
4 organic electric-excitation luminescent displaying panels
41 transparency carriers
42 first electrodes
43 luminous zones
44 second electrodes
45 cover plates
46 stick together glue
47 silicon nitride films
Embodiment
First embodiment
As shown in Figure 2, comprise a substrate 11, a cover plate 12 and a sealing 13 according to the organic electric-excitation luminescent displaying panel 1 of first embodiment of the invention, wherein substrate 11 is provided with at least one organic electroluminescent element 14; Sealing 13 is doped with a plurality of decorating films 131, and substrate 11 and cover plate 12 are with sealing 13 involutions, to form an accommodation space.
In present embodiment, substrate 11 can be flexible (flexible) substrate or rigidity (rigid) substrate.In addition, substrate 11 can also be plastics (plastic) substrate or glass substrate or the like.Wherein, flexible base, board and plastic base can be Merlon (polycarbonate, PC) substrate, polyester (polyester, PET) substrate, cyclenes copolymer (cyclic olefincopolymer, COC) substrate or crome metal compound base material-cyclenes copolymer (metallocene-based cyclic olefin copolymer, mCOC) substrate.Certainly, substrate 11 can also be a silicon substrate.
Please refer to Fig. 2 again, organic electroluminescent element 14 comprises one first electrode 141, at least one organic functional layer 142 and one second electrode 143 in regular turn, and wherein first electrode 141 is positioned on the substrate 11.
In present embodiment, first electrode 141 utilizes sputter (sputtering) mode or ion plating (ion plating) mode is formed on the substrate 11.At this, first electrode 141 is generally a transparent conductive metal oxide as anode and its material usually, for example tin indium oxide (ITO), aluminum zinc oxide (AZO) or indium zinc oxide (IZO).
In addition, organic functional layer 142 comprises an electric hole implanted layer, an electric hole transfer layer, a luminescent layer, an electron transfer layer and an electron injecting layer (not shown) usually.Wherein, organic functional layer 142 utilizes evaporation (evaporation), rotary coating (spin coating), ink jet printing (ink jet printing) or printing modes such as (printing) to be formed on first electrode 141.In addition, the light launched of organic functional layer 142 can be blue light, green glow, ruddiness, white light, other monochromatic light or the colourama that is combined into of monochromatic light.
Please refer to Fig. 2 again, second electrode 143 is positioned on the organic functional layer 142.In this, second electrode 143 uses evaporation or sputter methods such as (sputtering) is formed on the organic functional layer 142.In addition, the material of second electrode 143 can be selected from but not be defined as aluminium (Al), calcium (Ca), magnesium (Mg), indium (In), tin (Sn), manganese (Mn), silver (Ag), gold (Au) and contain the alloy (for example magnesium silver (Mg:Ag) alloy, magnesium indium (Mg:In) alloy, magnesium tin (Mg:Sn) alloy, magnesium antimony (Mg:Sb) alloy and magnesium tellurium (Mg:Te) alloy) etc. of magnesium.
In addition, in present embodiment, the material of cover plate 12 be selected from glass, metal, macromolecule and inorganic thin film at least one of them.In this, cover plate 12 can have a chase 121, and this chase 121 is in order to limiting the contact area that sealing 13 is bonding on cover plate 12, that is the width of may command sealing 13 (as indicating W among Fig. 2), with the generation of the glue of avoiding overflowing.
Moreover substrate 11 in the present embodiment and cover plate 12 are with sealing 13 involutions, and wherein, sealing 13 is doped with a plurality of decorating films 131.In this, sealing 13 is light binding (a for example ultraviolet light photopolymerization glue).Certainly, sealing 13 can also be a hot-setting adhesive.
In addition, the decorating film 131 of present embodiment can be glass fibre or glass marble or the like.And the shape of decorating film 131 can be spherical or column.Certainly, decorating film 131 can also be to remove water substance or free radical scavenger, for example barium monoxide (BaO) or the like.
In present embodiment, sealing 13 doping decorating films 131 are the evolving path and the diffusion time in sticking together glue 13 in order to aqueous vapor in the increase external environment and oxygen, can promote the useful life and the stability of integral member.In addition, the decorating film 131 in the sealing 13 is the pressing distance between may command substrate 11 and the cover plate 12 also, has damaged organic electroluminescent element 14 (organic functional layer 142) except can avoid involution the time, more can be formed with an accommodation space.
In addition, the geometric configuration of decorating film 131 in sealing 13 is irregular, uses moisture content and the evolving path and the time of oxygen in sealing 13 of increasing.Moreover the content distribution of decorating film 131 in sealing 13 is even, and has sealing 13 to be separated by between decorating film 131 and the decorating film 131.
Moreover the applying distance (as indicating D among Fig. 2) between substrate 11 and the cover plate 12 approximates the height d (when the decorating film that inserts and puts is individual layer) of decorating film 131, as shown in Figure 2.Certainly, the distance of the applying between substrate 11 and the cover plate 12 (as indicating D among Fig. 3) also can be greater than the height d (when the decorating film that inserts and puts is multilayer) of decorating film 131, as shown in Figure 3.
The organic electric-excitation luminescent displaying panel 1 of present embodiment more comprises one and removes water unit 15, and it is arranged in the accommodation space.In this, remove water unit 15 and be positioned on substrate 11 or the cover plate 12, as shown in Figure 2.In addition, removing water unit 15 can also an adhesive tape (Tape) form be coated on organic electroluminescent element 14 and the substrate 11, as shown in Figure 3.
Because organic electroluminescent element 14 (organic functional layer 142) is very responsive for moisture content and oxygen, with be easy to generate dim spot (Dark Spot) after atmosphere contacts, be to avoid organic electroluminescent element 14 (organic functional layer 142) to be subjected to the influence of moisture content and oxygen with the utilization unit 15 that dewaters.In this, (barium monoxide for example, BaO), it is in order to remove the aqueous vapor of organic electric-excitation luminescent displaying panel 1 behind the involution, to increase the useful life of element to remove water unit 15 and can be drier.
Moreover, the organic electric-excitation luminescent displaying panel 1 of present embodiment more comprises one drive circuit (not being shown among the figure), this drive circuit can be passive type drive circuit or active drive circuit, and it is connected with second electrode 143 and power supply (not being shown among the figure) with first electrode 141.
Second embodiment
Please refer to Fig. 4 A and Fig. 4 B again, according to the sealing 2 that the organic electric-excitation luminescent displaying panel of second embodiment of the invention is used, one of its involution organic electric-excitation luminescent displaying panel 3 substrate 31 and a cover plate 32, wherein, sealing 2 is doped with a plurality of decorating films 21.
In present embodiment, the feature of sealing 2, organic electric-excitation luminescent displaying panel 3, substrate 31 and cover plate 32 and the function element that is basically the same as those in the first embodiment is identical, also repeats no more at this.
The sealing of organic electric-excitation luminescent displaying panel of the present invention and usefulness thereof a plurality of decorating films that in sealing, mix.Compare in prior art, decorating film of the present invention can increase outside moisture and the evolving path and the diffusion time of oxygen in sealing, uses the useful life and the stability that promote panel.In addition, decorating film has damaged organic electroluminescent element (organic functional layer) in the time of more can avoiding encapsulating pressing, improves the process rate of organic electric-excitation luminescent displaying panel.Moreover, decorating film can control basal plate and cover plate between the pressing distance, more can in panel, provide one the accommodation space that removes water unit is set, utilize and remove the aqueous vapor that water unit is removed panel inside.And, when decorating film is when removing water substance or free radical scavenger, also can improve the useful life of panel and the reliability of operation.Again, decorating film can increase the contact area in the sealing, has more strengthened sealing strength.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the described claim its equivalent modifications of carrying out or change.
Claims (22)
1. organic electric-excitation luminescent displaying panel comprises:
One substrate, substrate are provided with at least one organic electroluminescent element;
One cover plate; And
One is doped with the sealing of a plurality of decorating films, and its involution substrate and cover plate are to form an accommodation space.
2. organic electric-excitation luminescent displaying panel as claimed in claim 1, wherein the organic electroluminescent element on the substrate comprises one first electrode, at least one organic functional layer and one second electrode in regular turn.
3. organic electric-excitation luminescent displaying panel as claimed in claim 2, wherein the material of first electrode is the metal oxide of conduction.
4. organic electric-excitation luminescent displaying panel as claimed in claim 2, wherein the material of second electrode alloy that is selected from aluminium, calcium, magnesium, indium, tin, manganese, silver, gold and contains magnesium at least one of them.
5. organic electric-excitation luminescent displaying panel as claimed in claim 1, wherein substrate be selected from rigid substrates, flexible base, board, glass substrate, plastic base and silicon substrate at least one of them.
6. organic electric-excitation luminescent displaying panel as claimed in claim 1, the material of its cover plate be selected from glass, metal, macromolecule and inorganic thin film at least one of them.
7. organic electric-excitation luminescent displaying panel as claimed in claim 1, its cover plate has a chase, and it is in order to limit the contact area that sealing is bonding on cover plate.
8. organic electric-excitation luminescent displaying panel as claimed in claim 1, wherein sealing is light binding or hot-setting adhesive.
9. organic electric-excitation luminescent displaying panel as claimed in claim 1, wherein decorating film is glass fibre or glass marble.
10. organic electric-excitation luminescent displaying panel as claimed in claim 1, wherein decorating film is spherical or column.
11. organic electric-excitation luminescent displaying panel as claimed in claim 1, wherein decorating film is for removing water substance or free radical scavenger.
12. organic electric-excitation luminescent displaying panel as claimed in claim 1 more comprises
One removes water unit, and it is arranged in accommodation space.
13. organic electric-excitation luminescent displaying panel as claimed in claim 12 wherein removes water unit and is positioned on substrate or the cover plate.
14. organic electric-excitation luminescent displaying panel as claimed in claim 12 wherein removes water unit and is coated on organic electroluminescent element and/or the substrate.
15. the sealing that organic electric-excitation luminescent displaying panel is used is characterized in that:
Sealing is doped with a plurality of decorating films, is used for one of involution one an organic electric-excitation luminescent displaying panel substrate and a cover plate.
16. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, wherein sealing is light binding or hot-setting adhesive.
17. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, wherein decorating film is glass fibre or glass marble.
18. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, wherein decorating film is spherical or column.
19. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, wherein decorating film is for removing water substance or free radical scavenger.
20. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, wherein substrate be selected from rigid substrates, flexible base, board, glass substrate, plastic base and silicon substrate at least one of them.
21. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, the material of its cover plate be selected from glass, metal, macromolecule and inorganic thin film at least one of them.
22. the sealing that organic electric-excitation luminescent displaying panel as claimed in claim 15 is used, its cover plate has a chase, and it is in order to limit the contact area that sealing is bonding on cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101143254A CN1617637A (en) | 2003-11-12 | 2003-11-12 | Organic electroluminescent display panel and its package glue thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101143254A CN1617637A (en) | 2003-11-12 | 2003-11-12 | Organic electroluminescent display panel and its package glue thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1617637A true CN1617637A (en) | 2005-05-18 |
Family
ID=34760168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101143254A Pending CN1617637A (en) | 2003-11-12 | 2003-11-12 | Organic electroluminescent display panel and its package glue thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1617637A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7692383B2 (en) | 2006-02-28 | 2010-04-06 | Tdk Corporation | EL panel |
| CN104393187A (en) * | 2014-11-17 | 2015-03-04 | 合肥鑫晟光电科技有限公司 | Package substrate and preparation method thereof and OLED (Organic Light Emitting Diode) display device |
| CN107533396A (en) * | 2015-03-02 | 2018-01-02 | Lg伊诺特有限公司 | Lid substrate and the touch window including lid substrate |
-
2003
- 2003-11-12 CN CNA2003101143254A patent/CN1617637A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7692383B2 (en) | 2006-02-28 | 2010-04-06 | Tdk Corporation | EL panel |
| CN104393187A (en) * | 2014-11-17 | 2015-03-04 | 合肥鑫晟光电科技有限公司 | Package substrate and preparation method thereof and OLED (Organic Light Emitting Diode) display device |
| CN107533396A (en) * | 2015-03-02 | 2018-01-02 | Lg伊诺特有限公司 | Lid substrate and the touch window including lid substrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1612650A (en) | Organic light-emitting display panel | |
| CN1468039A (en) | Organic electroluminescent device, method of manufacturing organic electroluminescent device, and electronic apparatus | |
| CN1652646A (en) | Structure for packaging organic electroluminescence element | |
| CN1694585A (en) | Organic electro-luminescence device and fabrication method thereof | |
| CN1617636A (en) | Organic luminous panel with hydrophobic layer | |
| CN1265472C (en) | Organic light emitting diode | |
| CN1822731A (en) | Packaging structure of two-side organic electroluminescence module and packaging method | |
| CN1612648A (en) | Organic light-emitting display panel | |
| CN1617635A (en) | Organic luminous panel with hydrophobic layer | |
| CN1617637A (en) | Organic electroluminescent display panel and its package glue thereof | |
| CN100335944C (en) | Double-faced display device | |
| CN1291504C (en) | Organic LED with hydrophobic film and its manufacture | |
| CN1567554A (en) | Method for packaging electronic component | |
| CN1617192A (en) | Double surface display device | |
| CN1324361C (en) | Double-faced display device | |
| CN101060163A (en) | Organic EL device and its manufacture method | |
| CN100433354C (en) | Organci light-emitting display panel and isolating base board | |
| CN100341154C (en) | Organie LED display and its manufacturing method | |
| CN1624735A (en) | Two-sided display device | |
| CN1633218A (en) | Organic electroluminescent display panel | |
| CN1266782C (en) | Organic LED with hydrophobic fiml and its manufacture | |
| CN2613053Y (en) | Organic LED with water removing film | |
| CN100380704C (en) | Organic light-emitting display panel | |
| CN1633217A (en) | Organic electroluminescent display panel and isolating substrate thereof | |
| CN2655427Y (en) | Organic LED with dehumidifying film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |