CN100461492C - Organic electroluminescent display and packaging method thereof - Google Patents
Organic electroluminescent display and packaging method thereof Download PDFInfo
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- CN100461492C CN100461492C CNB2005100542720A CN200510054272A CN100461492C CN 100461492 C CN100461492 C CN 100461492C CN B2005100542720 A CNB2005100542720 A CN B2005100542720A CN 200510054272 A CN200510054272 A CN 200510054272A CN 100461492 C CN100461492 C CN 100461492C
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Abstract
An organic electroluminance display includes a display base plate and a back cover-an intensified glass assembled in side display plate. The content of K ions in the back cover is larger than 1%, that is 3%~10%. A package method includes: providing a display base plate, and an intensified glass as the back cover, which is back-to-back with the display base plate.
Description
Technical field
The present invention relates to a kind of display of organic electroluminescence, particularly relate to a kind of display of organic electroluminescence that tempered glass is applied to carry on the back lid.
Background technology
Organic light-emitting display device (Organic Light-Emitting Display in recent years, OLED), in the monitor market, attracted attention gradually with simple framework, splendid working temperature and reaction speed, distinct color contrast and there is not advantage such as visual angle restriction.
Easy and the airborne aqueous vapor effect of luminous organic material among the OLED and metal electrode, and influence the OLED display quality, even reduction of service life.Adopt the practice of adding drier to improve the problems referred to above traditionally.On the practice, after drier is installed in the back of the body lid with groove, will carry on the back lid and OLED glass substrate, to finish the OLED assembling to group.The back of the body is stamped metal and two kinds of materials commonly used of glass at present.The anti-impulse force of metal backing lid is bigger, and intensity is stronger.Traditional glass back of the body lid is in the mode of sandblast, and the inner surface that covers at the glass back of the body corrodes a groove, uses for the filling drier.
Yet the metal backing lid is relatively poor with the adherence of glass substrate, and after heating, the degrees of expansion of metal backing lid is big than glass substrate, can produce stress problem.In addition, when the metal backing lid was made large tracts of land, not only cost was higher, and can produce the problem of deformation.Moreover traditional glass back of the body lid forms after the groove through sandblast, and strength of glass weakens many immediately.Particularly for portable electronic products such as very high mobile phone of its whole mechanism requirement of strength or cameras, the glass back of the body with groove is placed on the situation that fragmentation very easily takes place when falling.Therefore, develop and the back of the body lid that big and its physical characteristic of a kind of anti-impulse force can be complementary with glass substrate, real is current important topic.
Summary of the invention
In view of this, purpose of the present invention is providing a kind of display of organic electroluminescence and method for packing thereof exactly, and its back of the body lid adopts tempered glass.The anti-impulse force of the tempered glass of present embodiment surpasses four to five times of traditional glass, can increase considerably display intensity, reduces the probability that fragmentation takes place when product falls.
According to purpose of the present invention, propose a kind of display of organic electroluminescence and comprise display base plate and back of the body lid.Back of the body lid is a tempered glass, and back of the body lid is assembled in this display base plate.Potassium content in the back of the body lid is greater than 1%, and the potassium content of back of the body lid is between 3%～10%.
According to purpose of the present invention, reintroduce a kind of method for packing of display of organic electroluminescence, comprise step: provide a display base plate; Provide a tempered glass as a back of the body lid; To organizing this display base plate element and this back of the body lid.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, following conjunction with figs. and preferred embodiment are to illustrate in greater detail the present invention.
Description of drawings
Fig. 1 illustrates a kind of figure according to one embodiment of the present invention.
Fig. 2 illustrates the flow chart of the method for packing of the display of organic electroluminescence among Fig. 1.
Fig. 3 A illustrates the schematic diagram of the gluing process of present embodiment.
Fig. 3 B illustrates the vertical view after the back of the body of glass among Fig. 3 A is placed on a glue.
Fig. 4 illustrates the graph of a relation according to potassium atom content and evenness in the glass back of the body lid.
Fig. 5 illustrates the schematic diagram according to strength test.
Fig. 6 A is the intensity comparison diagram of sandblast face and the sandblast face of traditional soda-lime glass of the tempered glass of present embodiment.
Fig. 6 B is the intensity comparison diagram of not sandblast face and the not sandblast face of traditional soda-lime glass of the tempered glass of present embodiment.
The simple symbol explanation
100: electroluminescent display is arranged
101: substrate
102: thin-film transistor
103: anode
104: the organic electroluminescence structure layer
104a: hole transmission layer
104b: luminescent layer
104c: electron transfer layer
105: negative electrode
110: display base plate
120: back of the body lid
121: groove
130: drier
140: solidify glue
150: point gum machine
Embodiment
The present invention proposes a kind of display of organic electroluminescence, and (Organic Electro-LuminescentDisplay OELD) comprises display base plate and back of the body lid, and back of the body lid is assembled in this display base plate.Back of the body lid is a tempered glass, can increase substantially the back of the body and cover intensity, and effectively check the situation of fragmentation when falling.Below lifting a display of organic electroluminescence and method for packing thereof is that example elaborates, yet present embodiment only is a kind of execution mode under the invention spirit of the present invention, can't carry out limit to desire protection range of the present invention.
Please refer to Fig. 1, it illustrates a kind of figure according to one embodiment of the present invention.(Organic Electro-Luminescent Display OELD) comprises that display base plate 110, the back of the body cover 120, drier 130 and sticker to the display of organic electroluminescence 100 of present embodiment.
The back of the body covers 120 and is tempered glass, and it is a soda-lime glass that the back of the body covers 120, and its potassium content is greater than 1%.The back of the body covers 120 and has a groove 121, and this drier 130 is arranged in this groove 121.Sticker for example is to solidify glue 140, in order to bonding should the back of the body cover 120 with this display base plate 110, form a seal cavity by this, interior filling one nitrogen of seal cavity.By this, this back of the body lid 120 is assembled in this display base plate 110.
Wherein, this back of the body lid 120 is a soda-lime glass, and the potassium content in this back of the body lid 120 is higher than sodium ions content.This back of the body covers 120 potassium content between 3%～10%.Preferably, to cover 120 potassium content be 5.5% to the back of the body haply.
Please refer to Fig. 2, it illustrates the flow chart of the method for packing of the display of organic electroluminescence among Fig. 1.The method of the encapsulation of the display of organic electroluminescence of present embodiment comprises step S101～S103: a display base plate is provided; Provide a tempered glass as a back of the body lid; To organizing this display base plate element and this back of the body lid.
Provide a tempered glass to cover 120 as a back of the body in step S102, its detailed step is described below.At first, provide a sheet of soda-lime glass, its potassium concentration is lower than 1%, and the soda-lime glass area for example is 370mm * 470mm.Then, to etch a plurality of grooves 121, the area of groove 121 is equal to the luminous zone area of display haply with this soda-lime glass sandblast, but for example is that six groove 121 processing and manufacturings go out six back of the body lids.At last, this soda-lime glass is soaked in the solution that contains potassium ion, for example be in the sylvite of molten state, and carry out the sodium ion on soda-lime glass surface and the ion-exchange between the potassium ion in the solution through high-temperature technology, form a tempered glass by this, in order to back of the body lid as this display of organic electroluminescence.The strengthening principle of tempered glass is that the potassium ion bigger with atomic radius replaces the less sodium ion of atomic radius, and potassium ion can produce compression (compress stress) at glass surface, to increase the glass resistance.In general, the potassium concentration in the soda-lime glass is high more, and the potassium ion that expression replaces sodium ion is many more, and then Biao Mian compression is strong more, and the patient forward impact power of institute is strong more.Moreover, because invigoration effect mainly occurs in glass surface, so still can cut after strengthening, after-processing technologies such as boring, plated film.In addition, tempered glass can high temperature resistantly reach 200～250 ℃.
Be noted that, when adjust strengthening concentration, the temperature of molten state sylvite with soak the time of putting the i.e. sodium ion on the may command tempered glass surface potassium content of replacing.Preferably, the potassium concentration of solution is between 40～80g/cm
3, and in this back of the body lid that forms potassium content between 3%～10%.Preferably, the potassium content of back of the body lid is 5.5% haply.
Step S103 is to organizing this display base plate 110 and this back of the body lid 120, and its detailed step is described below.At first, drier 130 being arranged in this groove 121, and applying a curing glue 140, for example is ultraviolet curing glue (UV glue), covers around 120 in this back of the body.Please refer to Fig. 3 A～3B, Fig. 3 A illustrates the schematic diagram of the gluing process of present embodiment, and Fig. 3 B illustrates among Fig. 3 A the vertical view after the back of the body is placed on a glue.For instance, as shown in Figure 3A, set up a point gum machine 150 and cover 120 top, and cover 120 fixed ranges of being separated by with carrying on the back in the back of the body.Afterwards, shown in Fig. 3 B, point gum machine will solidify glue 140 and drip one by one in the back of the body and cover on 120, and will solidify glue 140 around groove 121 along trapped orbit.Then, engage this display base plate 110 and this back of the body lid 120.At last, shine a ultraviolet ray, in order to solidify this curing glue 140, this display base plate 110 is connected in this back of the body lid 120.Engage module processes such as (ICbonding) through cutting, sliver, routing more afterwards, finish the making of display of organic electroluminescence 100 by this.
Below propose several groups of experimental results,, make specificity analysises such as further evenness and intensity for the back of the body lid of the display of organic electroluminescence of producing via above-mentioned technology.
Experiment one-back of the body covers testing flatness
In step S103, the evenness of back of the body lid is relevant with some glue amount, and some glue amount is closely bound up with process yield.Since point gum machine its vertical height when glue be fix and only along continuous straight runs move, if the irregular phenomenon of warpage takes place in back of the body lid, can make the distance between point gum machine and the back of the body lid change, and then make the some glue volume production on whole large stretch of diverse location on glass give birth to difference, finally influence process yield.
The back of the body covers the testing flatness method, and details are as follows.Shown in Fig. 3 B, cover in the glass back of the body and to get a plurality of measuring points, the distance of record point gum machine and measuring point is got ultimate range afterwards and is deducted the minimum distance calculation difference, with the criterion as evenness.Its evenness of tempered glass of different potassium contents is measured in this experiment respectively.
Please refer to Fig. 4, it illustrates the graph of a relation according to potassium atom content and evenness in the glass back of the body lid.Find by experimental result, the glass back of the body lid of potassium content 3%～8%, the maximum residual quantity of point gum machine and glass back of the body lid is between 0.1～0.8mm.Particularly, potassium content is 5.5% glass back of the body lid, and the maximum residual quantity of its point gum machine and glass back of the body lid is 0.1mm only, evenness the best, but unification point glue amount on glass provides preferred process yield.Comprehensively above-mentioned, the potassium content of the tempered glass of present embodiment is between 3%～10%.Preferably, the potassium content of tempered glass is 5.5% haply.
Experiment two-strength test
Please refer to Fig. 5, it illustrates the schematic diagram according to strength test.The method of strength of glass test is described below, determinand 120 is positioned on the pedestal 10, and measuring surface placed up, 20 pairs of measuring surfaces of machine impose a default external force, when determinand stressed and when damaging, should default external force be the maximum impulse force that this determinand can bear, define the intensity of determinand by this.
The tempered glass of present embodiment adopts the tempered glass of potassium content 5.5% to carry out above test.The intensity of the tempered glass of making via said method in the relatively general soda-lime glass of this experiment and the present embodiment, and respectively at sandblast face and sandblast planar survey strength of glass not.Please refer to Fig. 6 A～6B, Fig. 6 A is the intensity comparison diagram of sandblast face and the sandblast face of traditional soda-lime glass of the tempered glass of present embodiment, and Fig. 6 B is the intensity comparison diagram of not sandblast face and the not sandblast face of traditional soda-lime glass of the tempered glass of present embodiment.
As shown in Figure 6A, with regard to the intensity of sandblast face, the maximum impulse force that the sandblast face F1 of traditional sodium glass can bear is 0.760kgw, and the maximum impulse force that the sandblast face of the tempered glass of present embodiment can bear is 4.375kgw, 5.8 times of the impulse force that can bear for the sandblast face N1 of traditional sodium glass.
Shown in Fig. 6 B, with regard to the intensity of sandblast face not, the maximum impulse force that the not sandblast face F2 of traditional sodium glass can bear is 4.391kgw, and the maximum impulse force that the not sandblast face N2 of the tempered glass of present embodiment can bear is 27.974kgw, 6.4 times of the impulse force that can bear for the not sandblast face F1 of traditional sodium glass.Generally speaking, the back of the body made from tempered glass of present embodiment covers, and its anti-impulse force surpasses four to five times of traditional glass.
Disclosed display of organic electroluminescence of the above embodiment of the present invention and method for packing thereof, the tempered glass that its back of the body lid adopts can have multiple advantages.At first, the anti-impulse force of the tempered glass of present embodiment surpasses four to five times of traditional glass, can increase considerably display intensity, reduces the probability that fragmentation takes place when product falls.Moreover the tempered glass of present embodiment has smooth characteristic, can directly apply in the existing packaging technology, makes some glue amount unanimity on glass to improve process yield
In sum; though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; those skilled in the art without departing from the spirit and scope of the present invention; can do a little change and retouching, thus protection scope of the present invention should with accompanying Claim the person of being defined be as the criterion.
Claims (18)
1. display of organic electroluminescence comprises:
One display base plate; And
One back of the body lid, for potassium content greater than 1% tempered glass, this back of the body covers and is assembled in this display base plate.
2. display of organic electroluminescence as claimed in claim 1, wherein the potassium content in this back of the body lid is higher than sodium ions content.
3. display of organic electroluminescence as claimed in claim 1 wherein should be carried on the back the potassium content of lid between 3%～10%.
4. display of organic electroluminescence as claimed in claim 1, wherein the potassium content of this back of the body lid is 5.5%.
5. display of organic electroluminescence as claimed in claim 1, wherein this back of the body lid has a groove, and an opening of this groove is towards this display base plate.
6. display of organic electroluminescence as claimed in claim 5, wherein this display of organic electroluminescence also comprises a drier, this drier is arranged in this groove.
7. display of organic electroluminescence as claimed in claim 1, wherein this display of organic electroluminescence also comprises a sticker, should cover and this display base plate by the back of the body in order to bonding, forms a seal cavity by this.
8. display of organic electroluminescence as claimed in claim 7, wherein filling one nitrogen in the sealing space.
9. display of organic electroluminescence as claimed in claim 7, wherein this sticker is a ultraviolet curing glue.
10. display of organic electroluminescence as claimed in claim 1, wherein this display base plate comprises:
One substrate;
One anode and a corresponding negative electrode are formed on this substrate; And
One organic electroluminescence structure layer is formed between this anode and this negative electrode, comprising:
One hole transmission layer is formed on this anode;
One luminescent layer is formed on this hole transmission layer; And
One electron transfer layer is formed on this luminescent layer.
11. display of organic electroluminescence as claimed in claim 10, wherein this display base plate also comprises a thin-film transistor, is formed between this substrate and this anode.
12. the method for packing of a display of organic electroluminescence comprises step:
One display base plate is provided;
Provide potassium content to carry on the back lid as one greater than 1% tempered glass; And
To organizing this display base plate and this back of the body lid.
13. method for packing as claimed in claim 12 wherein provides a tempered glass to comprise as the step of a back of the body lid:
One soda-lime glass is provided;
One glass sandblast step, with this soda-lime glass sandblast to form a groove; And
One glass reinforced step is soaked in this soda-lime glass in the solution that contains potassium ion, in order to form a tempered glass.
14. method for packing as claimed in claim 13, wherein the potassium concentration of this solution is between 40～80g/cm
3
15. method for packing as claimed in claim 13, wherein this comprises the step of organizing this display base plate element and this back of the body lid:
One drier is arranged in this groove;
Apply one and solidify glue around this back of the body lid;
Engage this display base plate and this back of the body lid; And
Shine a ultraviolet ray, in order to solidify this curing glue, by this, this display base plate is connected in this back of the body lid.
16. method for packing as claimed in claim 12, wherein the potassium content of this tempered glass is higher than sodium ions content.
17. method for packing as claimed in claim 12, wherein the potassium content of this tempered glass is between 3%～10%.
18. method for packing as claimed in claim 12, wherein the potassium content of this tempered glass is 5.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100542720A CN100461492C (en) | 2005-03-21 | 2005-03-21 | Organic electroluminescent display and packaging method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100542720A CN100461492C (en) | 2005-03-21 | 2005-03-21 | Organic electroluminescent display and packaging method thereof |
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| CN1668146A CN1668146A (en) | 2005-09-14 |
| CN100461492C true CN100461492C (en) | 2009-02-11 |
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| CNB2005100542720A Active CN100461492C (en) | 2005-03-21 | 2005-03-21 | Organic electroluminescent display and packaging method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866944B (en) * | 2010-02-26 | 2012-07-04 | 信利半导体有限公司 | Organic light-emitting diode display |
| CN103086590B (en) * | 2011-11-02 | 2015-10-21 | 富泰华工业（深圳）有限公司 | Cloudy surface glass-making processes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158430A (en) * | 1994-12-09 | 1997-09-03 | 精工电子工业株式会社 | Display device and method of manufacturing the same |
| CN1365595A (en) * | 2000-03-22 | 2002-08-21 | 出光兴产株式会社 | Apparatus for manufacturing organic EL display device and method for manufacturing organic EL display device using the same |
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2005
- 2005-03-21 CN CNB2005100542720A patent/CN100461492C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158430A (en) * | 1994-12-09 | 1997-09-03 | 精工电子工业株式会社 | Display device and method of manufacturing the same |
| CN1365595A (en) * | 2000-03-22 | 2002-08-21 | 出光兴产株式会社 | Apparatus for manufacturing organic EL display device and method for manufacturing organic EL display device using the same |
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| CN1668146A (en) | 2005-09-14 |
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Effective date of registration: 20230914 Address after: No. 999 Xialian Road, Neicuo Town, Xiang'an District, Xiamen City, Fujian Province Patentee after: Xiamen Tianma Display Technology Co.,Ltd. Address before: Tokyo Patentee before: Taishikang Co.,Ltd. |