CN100376045C - Organic luminous element - Google Patents
Organic luminous element Download PDFInfo
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- CN100376045C CN100376045C CNB031369871A CN03136987A CN100376045C CN 100376045 C CN100376045 C CN 100376045C CN B031369871 A CNB031369871 A CN B031369871A CN 03136987 A CN03136987 A CN 03136987A CN 100376045 C CN100376045 C CN 100376045C
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- illuminating element
- blocking part
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Abstract
The present invention relates to an organic luminous element which comprises a base board, an organic luminous part, an etching part and a barrier part, wherein the organic luminous part is formed on the base board, the etching part is formed outside of the organic luminous part and the barrier part is formed between the organic luminous part and the etching part. The barrier part can also be used for blocking splashed residues which are generated during the course of laser etching of the organic luminous element, which avoids the residues to splash to the organic luminous part to cause defects of the organic luminous element. Thus, the present invention can enhance the production yield rate of the organic luminous element, enhance the reliability of the organic luminous element and further decrease the fabrication of the organic luminous element.
Description
Technical field
The present invention relates to a kind of organic illuminating element, particularly a kind of organic illuminating element with blocking part.
Background technology
Organic illuminating element is a kind of active illuminating element, and it can be in order to as purposes such as flat-panel screens and lighting sources.Advantage such as organic illuminating element has self-luminous, wide viewing angle, low power consumption, deflection, processing procedure is easy, cost is low, operating temperature range is wide and service speed is fast, and because of it has frivolous and the deflection characteristic, applicable scope is big, therefore becomes one of emphasis order of numerous manufacturers active development.
Organic illuminating element is a kind of to utilize the self luminous characteristic of organic functional material (organic functional materials) to reach the element of display effect, can be divided into micromolecule organic illuminating element (small molecule OLED according to the molecular weight difference of organic functional material, SMOLED) with macromolecule organic illuminating element (polymer light-emitting device, PLED) two big classes.
Please refer to Fig. 1, the organic illuminating element 4 of prior art comprises a substrate 41, an organic light emission portion 42 and an etched part 43, wherein, organic light emission portion 42 is located on the substrate 41, etched part 43 is arranged at the periphery of organic light emission portion 42, and it mainly comprises part of joining with involution lid (not being shown in Fig. 1) or the part that forms external pin (not being shown in Fig. 1).
From the above, the organic light emission portion of the organic illuminating element of prior art comprises one first electrode, an organic luminous layer, one second electrode.And when making the organic illuminating element of prior art, need provide a substrate earlier, and on substrate, form one first electrode, an organic luminous layer, one second electrode afterwards in regular turn, wherein organic luminous layer often forms in rotary coating mode (Spin Coating).
Because it is luminous main body that organic illuminating element uses organic material, and organic material very easily reacts with oxygen and aqueous vapor, and cause the not generation of light-emitting zone (dark spot): therefore, its characteristic will worsen rapidly under oxygen and the aqueous vapor when organic light-emitting component is exposed to.For avoiding this phenomenon, cover involution lid in the frequent sub-encapsulation procedure of organic illuminating element, this involution lid is in order to avoid organic material to expose to the open air under oxygen and aqueous vapor; In addition, organic illuminating element also is formed with more than one external pin with the connecting pipe as organic illuminating element and external circuit, and because the formation step of involution lid and external pin is after organic luminous layer forms step, and organic luminous layer often forms in the rotary coating mode, therefore, when organic light-emitting component after organic luminous layer forms, can cover an organic material layer in the predetermined place of covering of its involution lid and predetermined formation place of external pin, so, before covering, the involution lid needs on the substrate of organic illuminating element, to carry out a laser-induced thermal etching step, the predetermined organic material layer that covers in the place of involution lid is removed, to carry out the action that covers of involution lid; Similarly, externally predetermined formation place of pin is also covered by an organic material layer, and therefore externally pin needs to carry out a laser-induced thermal etching step on the substrate of organic illuminating element before formation.
Yet, in the process of the laser-induced thermal etching of carrying out organic illuminating element, often the surface because of etched part has the situation that metal material, high reflecting material or uneven surface make laser beam generation reflection and scattering, and the laser of reflection or scattering might reflex to light-emitting zone, and then undermine the material of light-emitting zone, person very, the residue in the etched part can splash in the organic light emission portion and cause the defective of organic illuminating element.Therefore, how avoiding laser beam to destroy organic light emission portion when carrying out laser-induced thermal etching and how to avoid residue in the etched part to splash to real in the organic light emission portion is an important topic.
Summary of the invention
Because above-mentioned problem, the purpose of this invention is to provide a kind of laser of reflection and scattering in the etch process and residue that splashes of preventing and disturb the organic illuminating element of its organic light emission portion.
Feature of the present invention mainly is to be formed with between organic light emission portion and the etched part blocking part.
For reaching above-mentioned purpose, the invention provides a kind of organic illuminating element, it has a substrate, an organic light emission portion, an etched part and a blocking part.Wherein, organic light emission portion is formed on the substrate; Etched part is positioned on this substrate and is formed at the outside of organic light emission portion; Blocking part is on this substrate and be formed between organic light emission portion and the etched part.
The present invention also provides a kind of organic illuminating element, comprises: a substrate; One organic light emission portion, it is formed on this substrate; One etched part, it is positioned on this substrate and is formed at the outside of this organic light emission portion; Also comprise: one first blocking part, it is on this substrate and be formed between this organic light emission portion and this etched part; And one second blocking part, it is positioned on this substrate and is formed at the outside of this etched part.
From the above, have a blocking part according to organic illuminating element of the present invention, can be in order to stopping that the laser beam of reflection and scattering is invaded organic light emission portion in the laser-induced thermal etching processing procedure, to prevent to reflect and the yield of the laser beam impact organic light emission portion of scattering.In addition, blocking part also can stop the residue that splashes that organic illuminating element is produced in the process of carrying out laser-induced thermal etching, avoid residue to splash to organic light emission portion and cause the defective of organic illuminating element, therefore, the present invention can improve the production yield of organic illuminating element and the reliability that improves organic illuminating element, further reduces the manufacturing cost of organic illuminating element.
Description of drawings
Fig. 1 is the structural representation of prior art organic illuminating element;
Fig. 2 is the structural representation of the organic illuminating element of a preferred embodiment of the present invention;
Fig. 3 A is another structural representation of the organic illuminating element of a preferred embodiment of the present invention;
Fig. 3 B is the another structural representation of the organic illuminating element of a preferred embodiment of the present invention;
Fig. 3 C is the another structural representation of the organic illuminating element of a preferred embodiment of the present invention;
Fig. 4 A is along the cross-sectional view of the blocking part of dotted line A-A ' among Fig. 2;
Fig. 4 B is along the cross-sectional view of the blocking part of dotted line A-A ' among Fig. 2;
Fig. 4 C is along the cross-sectional view of the blocking part of dotted line A-A ' among Fig. 2;
Fig. 4 D is along the cross-sectional view of the blocking part of dotted line A-A ' among Fig. 2;
Fig. 5 A is the structural representation of the organic illuminating element of another preferred embodiment of the present invention;
Fig. 5 B is another structural representation of the organic illuminating element of another preferred embodiment of the present invention;
Fig. 6 be among Fig. 5 A along dotted line B-B ' cross-sectional view.
Symbol description among the figure:
1 organic illuminating element
11 substrates
12 organic light emission portions
13 etched part
131 outer pin circuitry (or outer pin)
14 blocking parts
21 first blocking parts
22 second blocking parts
31 laser beams
32 residues
4 organic illuminating elements
41 substrates
42 organic light emission portions
43 etched part
Embodiment
Hereinafter with reference to relevant drawings, the organic illuminating element of preferred embodiment of the present invention is described.
Please refer to Fig. 2, the organic illuminating element 1 of preferred embodiment of the present invention comprises a substrate 11, an organic light emission portion 12, an etched part 13 and a blocking part 14.Wherein, organic light emission portion 12 is formed on the substrate 11; Etched part 13 is formed at the outside of organic light emission portion 12; Blocking part 14 is formed between organic light emission portion 12 and the etched part 13.
In present embodiment, substrate 11 is a glass substrate, and in this, substrate 11 also can be selected from plastic base or flexibility (Flexible) substrate etc.And, plastic base and flexible base, board can be a Merlon (Polycarbonate, PC) substrate, a polyester (Polyester, PET) substrate, a cyclenes copolymer (Cyclic olefin copolymer, COC) substrate, a crome metal compound base material one cyclenes copolymer (metallocene-based cyclic olefin copolymer, mCOC) substrate or slim glass (ThinGlass) substrate.
Please refer to Fig. 2 again, organic light emission portion 12 is formed on the substrate 11.Wherein, organic light emission portion 12 comprises one first electrode, an organic luminous layer and one second electrode in regular turn, and first electrode is located on the substrate, in present embodiment, the material of first electrode be indium-zinc oxide (Indium Tin Oxide, ITO), it also can select indium-zinc oxide (Indium Zinc Oxide for use, IZO), the aluminium zinc oxide (AluminumZinc Oxide, AZO) or other nesa coating.
In addition, in present embodiment, organic luminous layer comprises an electric hole implanted layer, an electric hole transport layer, a luminescent layer, an electron transfer layer and an electron injecting layer in regular turn, and wherein, electric hole implanted layer is formed on first electrode.
Then, as shown in Figure 2, etched part 13 is formed at the outside of organic light emission portion 12, and etched part 13 comprises external pin (not being shown in Fig. 2) and substrate 11 covers the joint of (not being shown in Fig. 2) with involution. and wherein, the scope that etched part 13 is comprised (as size, shape) is decided on actual demand.
Please refer to Fig. 2 again, blocking part 14 is located on the substrate 11, and is formed between organic light emission portion 12 and the etched part 13.In addition, in present embodiment, the position of blocking part 14 can have different variations according to actual needs, please refer to Fig. 3 A, at this, blocking part 14 is between organic light emission portion 12 and etched part 13, and along establishing on every side of organic light emission portion 12, to increase the effect that intercepts.Please refer to Fig. 3 B and Fig. 3 C, in this, blocking part 14 between organic light emission portion 12 and etched part 13, and blocking part 14 with discontinuous shape kenel along be located at organic light emission portion 12 around.
The angle that the surface pattern of blocking part 14 and blocking part 14 and substrate 11 are constituted influences the reflection path of 14 pairs of laser beams of blocking part, therefore, and the surface pattern of blocking part 14 and can change according to actual demand with angle that substrate 11 is constituted.Among Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D Fig. 2 along the profile of the blocking part 14 of dotted line A-A ' gained.Please refer to Fig. 4 A and Fig. 4 B, in the present embodiment, the surface of blocking part 14 has zigzag lines (shown in Fig. 4 A), and in this, it can be wavy lines (shown in Fig. 4 B) or irregular lines (not being shown among the figure); And shown in Fig. 4 C and 4D, the blocking part 14 of present embodiment is in spending (shown in Fig. 4 C) or equal 90 degree (shown in Fig. 4 D) greater than 90 near the surface of etched part 13 1 sides and the angle that substrate 11 is constituted.
In the present embodiment, the material of blocking part 14 is selected for use has the ultraviolet ray of absorption.The material of characteristic (UV), including but not limited to the solid type resin (Novolac) of Polyimide (polyimide), phenolic aldehyde, the solid type epoxy resin (amines as curing agent in epoxy resins) of amine, the solid type epoxy resin (anhydrides as curing agent in epoxy resins) of acid anhydride, acryl (Acrylics), methylene chloride-based (dichloromethane) or polyamide (polyamide) and, the height of blocking part 14 is higher than etched part 13, to reach good blocking effect.
Fig. 5 A is another preferred embodiment of the present invention, and it comprises a substrate 11, an organic light emission portion 12, an etched part 13, one first blocking part 21 and one second blocking part 22.Wherein, substrate 11, organic light emission portion 12 and etched part 13 are identical with the organic illuminating element 1 of Fig. 2, so do not repeat to set forth at this; And first blocking part 21 is formed between organic light emission portion 12 and the etched part 13, second blocking part 22 is formed at the outside of etched part, in this, first blocking part 21 can have different variations according to actual needs, shown in figure continues, first blocking part 21 can be around organic light emission portion 12 and establish, and with the effect that increase to intercept, first blocking part 21 also can be discontinuous shape (not being shown among the figure).Second blocking part 22 also can be according to actual demand along if present with discontinuous shape kenel.
Holding institute says, the making step of the organic illuminating element of preferred embodiment of the present invention forms organic illuminating part on substrate, next form a blocking part between organic light emission portion and etched part, afterwards, etched part is carried out the laser-induced thermal etching step, carry out encapsulation procedure at last.
From the above, when carrying out the laser-induced thermal etching step, often the unevenness because of the etched part surface causes laser beam to produce reflection and scattering process, and organic illuminating element will produce many residues in etching process.Along the profile of dotted line B-B ' gained, wherein, label 131 expressions are as the outer pin or the outer pin circuitry of etched part 13 among Fig. 6 Fig. 5 A.As shown in Figure 6, wherein most of laser beam 31 toward organic light emission portion 12 directions is absorbed by first blocking part 21 when contacting with first blocking part 21, and, all the other unabsorbed laser beams 31 will be by 21 reflections of first blocking part and away from organic light emission portion 12, the direction that laser beam 31 reflected is decided according to the gradient of first blocking part 21 and surface pattern, so can avoid organic light emission portion 12 to be subjected to the influence of laser beam 31, at this, first blocking part 21 also can stop in the residue 32 intrusion organic light emission portions 12 of splashing.Second blocking part 22 has the laser beam 31 of blocking reflected and scattering and the effect of the residue 32 that splashes, with the effect of strengthening intercepting.
As mentioned above, the organic illuminating element according to preferred embodiment of the present invention has blocking part.And blocking part is higher than etched part, and its material also has the ultraviolet effect of absorption; The surface of blocking part has zigzag lines, wavy lines or irregular lines more respectively; In addition, blocking part is in spending more than or equal to 90 near the surface of etched part one side and the angle that substrate is constituted.Therefore, can effectively stop and reflect in the laser-induced thermal etching processing procedure and the laser beam of scattering and the residue that splashes are invaded organic light emission portion.So can improve the production yield and the reliability of organic illuminating element, and then reduce the manufacturing cost of organic illuminating element.
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 (18)
1. organic illuminating element comprises:
One substrate;
One organic light emission portion, it is formed on this substrate;
One etched part, it is positioned on this substrate and is formed at the outside of this organic light emission portion; It is characterized in that, also comprise:
One blocking part, it is on this substrate and be formed between this organic light emission portion and this etched part.
2. organic illuminating element as claimed in claim 1 is characterized in that, this blocking part along be located at this organic light emission portion around.
3. organic illuminating element as claimed in claim 2 is characterized in that this blocking part is discontinuous shape.
4. organic illuminating element as claimed in claim 1 is characterized in that, this blocking part has the zigzag lines near one of this etched part surface or has wavy lines or have irregular lines.
5. organic illuminating element as claimed in claim 1 is characterized in that, the material of this blocking part has the characteristic that absorbs ultraviolet light.
6. organic illuminating element as claimed in claim 1 is characterized in that, the material of this blocking part be selected from the solid type resin of Polyimide, phenolic aldehyde, the solid type epoxy resin of amine, the solid type epoxy resin of acid anhydride, acryl, methylene chloride-based and polyamide at least one of them.
7. organic illuminating element as claimed in claim 1 is characterized in that the height of this blocking part is higher than this etched part.
8. organic illuminating element as claimed in claim 1 is characterized in that, this substrate be selected from glass substrate, plastic base and flexible base, board at least one of them.
9. organic illuminating element as claimed in claim 1, it is characterized in that, this organic light emission portion comprises one first electrode, an organic luminous layer and one second electrode, this first electrode is formed on this substrate, this organic luminous layer is formed on this first electrode, and this second electrode is formed on this organic luminous layer.
10. organic illuminating element comprises:
One substrate;
One organic light emission portion, it is formed on this substrate;
One etched part, it is positioned on this substrate and is formed at the outside of this organic light emission portion; It is characterized in that, also comprise:
One first blocking part, it is on this substrate and be formed between this organic light emission portion and this etched part; And
One second blocking part, it is positioned on this substrate and is formed at the outside of this etched part.
11. organic illuminating element as claimed in claim 10 is characterized in that, this first blocking part along be located at this organic light emission portion around.
12. organic illuminating element as claimed in claim 10 is characterized in that, this first blocking part and this second blocking part are discontinuous shape respectively.
13. organic illuminating element as claimed in claim 10 is characterized in that, this first blocking part and this second blocking part have the zigzag lines respectively near one of this etched part surface or have wavy lines or have irregular lines.
14. organic illuminating element as claimed in claim 10 is characterized in that, the material of this first blocking part and this second blocking part has the characteristic that absorbs ultraviolet light.
15. organic illuminating element as claimed in claim 10, it is characterized in that, the material of this first blocking part and this second blocking part be selected from the solid type resin of Polyimide, phenolic aldehyde, the solid type epoxy resin of amine, the solid type epoxy resin of acid anhydride, acryl, methylene chloride-based and polyamide at least one of them.
16. organic illuminating element as claimed in claim 10 is characterized in that, the height of this first blocking part and this second blocking part is higher than this etched part respectively.
17. organic illuminating element as claimed in claim 10 is characterized in that, this substrate be selected from glass substrate, plastic base and flexible base, board at least one of them.
18. organic illuminating element as claimed in claim 10, it is characterized in that, this organic light emission portion comprises one first electrode, an organic luminous layer and one second electrode, this first electrode is formed on this substrate, this organic luminous layer is formed on this first electrode, and this second electrode is formed on this organic luminous layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031369871A CN100376045C (en) | 2003-05-26 | 2003-05-26 | Organic luminous element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031369871A CN100376045C (en) | 2003-05-26 | 2003-05-26 | Organic luminous element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1553749A CN1553749A (en) | 2004-12-08 |
| CN100376045C true CN100376045C (en) | 2008-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031369871A Expired - Fee Related CN100376045C (en) | 2003-05-26 | 2003-05-26 | Organic luminous element |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000040586A (en) * | 1998-07-21 | 2000-02-08 | Tdk Corp | Organic el element module |
| WO2001039287A1 (en) * | 1999-11-26 | 2001-05-31 | Cambridge Display Technology Limited | Method of producing an organic light-emissive device |
| WO2001080319A2 (en) * | 2000-04-14 | 2001-10-25 | Emagin Corporation | Improved method of fabrication of color changing medium layers in organic light emitting devices resulting in improved light extraction |
| JP2002299050A (en) * | 2001-03-29 | 2002-10-11 | Pioneer Electronic Corp | Organic electroluminescence display panel and method of manufacture |
-
2003
- 2003-05-26 CN CNB031369871A patent/CN100376045C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000040586A (en) * | 1998-07-21 | 2000-02-08 | Tdk Corp | Organic el element module |
| WO2001039287A1 (en) * | 1999-11-26 | 2001-05-31 | Cambridge Display Technology Limited | Method of producing an organic light-emissive device |
| WO2001080319A2 (en) * | 2000-04-14 | 2001-10-25 | Emagin Corporation | Improved method of fabrication of color changing medium layers in organic light emitting devices resulting in improved light extraction |
| JP2002299050A (en) * | 2001-03-29 | 2002-10-11 | Pioneer Electronic Corp | Organic electroluminescence display panel and method of manufacture |
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| Publication number | Publication date |
|---|---|
| CN1553749A (en) | 2004-12-08 |
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Granted publication date: 20080319 Termination date: 20120526 |