CN1809234A - Two-side display apparatus - Google Patents
Two-side display apparatus Download PDFInfo
- Publication number
- CN1809234A CN1809234A CN 200610006090 CN200610006090A CN1809234A CN 1809234 A CN1809234 A CN 1809234A CN 200610006090 CN200610006090 CN 200610006090 CN 200610006090 A CN200610006090 A CN 200610006090A CN 1809234 A CN1809234 A CN 1809234A
- Authority
- CN
- China
- Prior art keywords
- double
- display device
- side display
- protective layer
- layer
- 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.)
- Granted
Links
Images
Landscapes
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a double-faced display device, which comprises a first substrate and a second substrate, the second substrate is arranged above the first substrate, a first organic light-emitting diode is arranged above the first substrate and covers the total surface of the first organic light-emitting diode with a first protecting layer, a second organic light-emitting diode is arranged on the lower surface of the second substrate, and covers the total surface of the second organic light-emitting diode with a second protecting layer.
Description
Technical field
The present invention relates to a kind of double-side display device, particularly relating to a kind of can effectively prevent the invasion of steam and oxygen two-sided has a dynamo-electric display unit that swashs.
Background technology
The form of electronic product is variation gradually, and double-sided display function becomes the main characteristic of new generation electronic product.For example, the double-side display device of mobile phone inside can simultaneously show mobile phone function of tonic chord window, and another side shows the time.At present the double-side display device produced of industry is generally two single face display floaters subsides is formed, and for example a display panels and an organic electroluminescence panel be to pasting, or two organic electroluminescence panels are to subsides.
Fig. 1 is existing double-side display device.Double-side display device 10 is fitted by one first display floater 11 and one second display floater 12 and is formed.First display floater 11 has a transparency carrier 111, one first electrode 112, a luminescent layer 113, one second electrode 114 and a cap 115.First electrode 112 is formed on the transparency carrier 111.Luminescent layer 113 is between first electrode 112 and second electrode 114.The edge of cap 115 and transparency carrier 111 are fitted, and are covered on second electrode 114.In order to protect first display floater 11 not destroyed by steam, be typically provided with a drier 116 in cap 115 inboards.
As mentioned above, existing double-side display device 10 has two caps 115 and 125 and two drier 116 and 126, therefore, is difficult to shorten the distance between two transparency carriers 111 and 121, makes double-side display device 10 be difficult to thinning.Its reason is, in order to design the position of putting drier, must increase thickness, length or the width that shows more.For example, the drier 116 and 126 of Fig. 1 is located on cap 115 and 125, has had more the setting of cap 115 and 125 jointly.In addition, drier absorbs and may cause volumetric expansion behind the steam or discharge gas and destroy light-emitting component.
Summary of the invention
The object of the present invention is to provide a kind of structure of display with double faces to avoid the invasion of steam and oxygen, and can solve the problem that above-mentioned drier is provided with, to possess lighter and thinner design.
Double-side display device of the present invention comprises that one first substrate and one second substrate are positioned at first substrate top.One first Organic Light Emitting Diode is arranged at first upper surface of base plate, and covers all surfaces of first Organic Light Emitting Diode with one first protective layer.One second Organic Light Emitting Diode is arranged at this second base lower surface, and covers all surfaces of this second Organic Light Emitting Diode with one second protective layer.First protective layer and second protective layer used with starvation and steam.
Description of drawings
Fig. 1 is existing double-side display device;
Fig. 2 is first embodiment of double-side display device of the present invention;
Fig. 3 is second embodiment of double-side display device of the present invention; And
Fig. 4 is the 3rd embodiment of double-side display device of the present invention.
The simple symbol explanation
10 double-side display devices (having now), 221 reflecting electrodes
11 first display floaters, 222 luminescent layers
111 transparency carriers, 223 transparency electrodes
112 first electrodes, 23 protective layers
113 luminescent layers, 24 upper substrates
114 second electrodes, 25 Organic Light Emitting Diodes
115 caps, 251 reflecting electrodes
116 drier, 252 luminescent layers
12 second display floaters, 253 transparency electrodes
121 transparency carriers, 26 protective layers
122 third electrodes, 27 packaging plastics
123 luminescent layers, 30 double-side display devices
124 the 4th electrodes, 32 flatness layers
125 caps, 34 protective layers
126 drier, 341 silicon oxide films
20 double-side display devices, 342 silicon nitride films
21 infrabasal plates, 36 flatness layers
22 Organic Light Emitting Diodes, 38 protective layers
381 silicon oxide films
382 silicon nitride films
39 alundum (Al films
Embodiment
Now cooperate icon that double-side display device of the present invention is described in detail in detail, and enumerate preferred embodiment and be described as follows:
Please refer to Fig. 2, be the structural representation of the first embodiment of the present invention.Double-side display device 20 comprises an infrabasal plate 21 and a upper substrate 24 with a packaging plastic 27 involutions together.The upper surface of infrabasal plate 21 has a transparency electrode 223, a luminescent layer 222 and a reflecting electrode 221 to constitute an Organic Light Emitting Diode 22.The lower surface of upper substrate 24 has a transparency electrode 253, a luminescent layer 252 and a reflecting electrode 251 to constitute another Organic Light Emitting Diode 25.Organic Light Emitting Diode 22 and 25 is covered by a protective layer 23 and 26 respectively, and tight involution is in infrabasal plate 21 and upper substrate 24.
It between electrode and the luminescent layer zone of hole or electron transport.In the hole-transfer zone, an alternative hole injection layer or the hole transmission layer of inserting.In the electron transport zone, an alternative electronics hole implanted layer or the electron transfer layer of inserting.
Electron transfer layer can adopt oxine aluminium (Alq), trimerization benzimidazole (TPBI), anthracene (anthracene) derivative, fluorene derivative (fluorine, material such as spirofluorine), more in addition n type alloy such as alkali doped halide, alkaline-earth halide, alkali metal oxide or metal carbonate compound to strengthen its electron mobility.
The material of electron injecting layer can be metallic compound, adopts with good alkali halide, alkaline-earth halide, alkali metal oxide or the metal carbonate compound of light tight electrode work function fitness or comprises the organic layer of said n type alloy.
Hole transport layer material can be NPB, and (N, N-di (naphthalene-l-yl)-N N-diphenyl-benzidene) wait the allyl amine compounds.
The hole injection layer material can be titanium cyanine compounds such as allylic amines or CuPc.
First embodiment is the direct planarization of protective layer, but protective layer also can separate with planarization layer and makes.Please refer to the second embodiment of the invention of Fig. 3.The infrabasal plate 21 of double-side display device 30, upper substrate 24, packaging plastic 27, Organic Light Emitting Diode 22 and 25 relative position are as described in Figure 2.Different is, second embodiment protective layer 34 and 38 and Organic Light Emitting Diode 22 and 25 between import a flatness layer 32 and 36.Flatness layer 32 and 36 material can be selected a high molecular polymer or inorganic material for use; except avoiding protective layer 34 and 38 to seal the incomplete problem because of ladder covers; also can solve protective layer 34 and 38 excessive, cause the low excessively problem of fabrication yield because of internal stress.
The preferred surface slope of the protective layer of above-mentioned planarization or flatness layer should be between positive and negative 60 degree, and lip-deep peak and nadir distance should be less than 5 microns.Also can contain water-repellent substances such as silicon nitride, silica or alundum (Al in the flatness layer.
Please refer to Fig. 4, be the third embodiment of the present invention.The protective layer 34 of the 3rd embodiment can be single silicon oxide film 341, or is made up of a silicon oxide film 341 and a silicon nitride film 342 as icon.Protective layer 38 also can be single silicon oxide film 381, or is made up of a silicon oxide film 381 and a silicon nitride film 382 as icon.Then cover an alundum (Al film 39 at protective layer 34 and 38 outsides.
In the technology of the 3rd embodiment, at first on substrate 21, form transparency electrode 223, luminescent layer 222 and reflecting electrode 221 in regular turn to be manufactured with OLED 22, this part-structure please be simultaneously with reference to Fig. 2.Deposition one deck macromolecular compound on Organic Light Emitting Diode 22 again is with as flatness layer 32.On flatness layer 32, form silicon nitride film 341 comprehensively, on silicon nitride film 341, form silicon oxide film 342 more comprehensively.At last, on silicon oxide film 342, form alundum (Al film 39 more comprehensively.
Then, on another substrate 24,, be formed with OLED 25, flatness layer 36, silicon nitride film 381, silicon oxide film 382 and alundum (Al film 39 in regular turn with identical technology.Can connect drive circuit individually on the substrate 21 or 24, can show two independently video pictures simultaneously in the top and the below of double-side display device 30.At last, coating one deck packaging plastic 27 is combined into double-side display device 30 with two plate bases 21 and 24 again on substrate 21 or 24.Above-mentioned each layer structure can be made by existing evaporation coating method.Except being necessary to provide photomask carrying out the patterned process being manufactured with OLED 22 processes, all the other are evaporation all comprehensively, therefore can simplify the technology of display with double faces 30.
Among above-mentioned all embodiment, transparency electrode can be tin indium oxide (ITO), indium zinc oxide transparent conductive material or thin metal layers such as (IZO), and transparency carrier can be selected from glass or plastic material substrate.Therefore structure of the present invention is not limited to be applied in passive type display or the active display, can merge with driving element such as thin-film transistor and use.
When the present invention and prior art compare mutually, have more and get row characteristic and advantage ready:
1. preferred waterproof, anti-oxygen performance.
2. easy technology.
Above-listed detailed description specifies at the preferred embodiment of the present invention, and only the foregoing description is not in order to limiting claim of the present invention, does not allly break away from the equivalence that skill spirit of the present invention does and implements or change, all should be contained in the claim of the present invention.
Claims (19)
1. double-side display device comprises:
First substrate;
First Organic Light Emitting Diode is arranged at this first substrate top;
First protective layer covers all surfaces of this first Organic Light Emitting Diode, with starvation and steam;
Second substrate is positioned at this first protective layer top;
Second Organic Light Emitting Diode is arranged at this second substrate below; And
Second protective layer covers all surfaces of this second Organic Light Emitting Diode, with starvation and steam.
2. double-side display device as claimed in claim 1, wherein this first protective layer has planarized upper surface.
3. double-side display device as claimed in claim 1, wherein this second protective layer has the planarization lower surface.
4. double-side display device as claimed in claim 1, wherein the material of this first protective layer and this second protective layer is selected from the group that silicon nitride, silica and alundum (Al constitute.
5. double-side display device as claimed in claim 1, wherein this first protective layer comprises a plurality of films, these a plurality of films comprise a silicon oxide film and a silicon nitride film at least.
6. double-side display device as claimed in claim 1, wherein this second protective layer comprises a plurality of films, these a plurality of films comprise a silicon oxide film and a silicon nitride film at least.
7. double-side display device as claimed in claim 1, wherein this first Organic Light Emitting Diode comprises:
Transparency electrode is formed at this first upper surface of base plate;
Luminescent layer is formed on this transparency electrode; And
Reflecting electrode is formed on this luminescent layer.
8. double-side display device as claimed in claim 1, wherein this second Organic Light Emitting Diode comprises:
Transparency electrode is formed at this second base lower surface;
Luminescent layer is formed under this transparency electrode; And
Reflecting electrode is formed under this luminescent layer.
9. double-side display device comprises:
First substrate;
First Organic Light Emitting Diode is arranged at this first substrate top;
First flatness layer is formed at this first Organic Light Emitting Diode top;
First protective layer covers all surfaces of this first flatness layer, with starvation and steam;
Second substrate is positioned at this first protective layer top;
Second Organic Light Emitting Diode is arranged at this second substrate below;
Second flatness layer is formed at this second Organic Light Emitting Diode below; And
Second protective layer covers all surfaces of this second flatness layer, with starvation and steam.
10. double-side display device as claimed in claim 9, wherein this first protective layer and this second protective layer include a plurality of films, and these a plurality of films comprise a silicon oxide film and a silicon nitride film at least.
11. double-side display device as claimed in claim 10, wherein this silicon nitride film of this first protective layer is formed at this first flatness layer upper surface, and this silicon nitride film of this second protective layer is formed at this second flatness layer lower surface.
12. double-side display device as claimed in claim 11, wherein this silicon oxide film of this first protective layer is formed at the upper surface of its silicon nitride film, and this silicon oxide film of this second protective layer is formed at the lower surface of its silicon nitride film.
13. double-side display device as claimed in claim 12, wherein this silicon oxide film surface also comprises an alundum (Al film.
14. double-side display device as claimed in claim 9, wherein this first flatness layer and this second flatness layer all have the surface, and the distance of peak and minimum point is less than 5 microns on this surface.
15. double-side display device as claimed in claim 9, wherein the surface slope of this first flatness layer and this second flatness layer is all between positive and negative 60 degree.
16. double-side display device as claimed in claim 9, wherein this first flatness layer is a high molecular polymer.
17. double-side display device as claimed in claim 9, wherein this second flatness layer is a high molecular polymer.
18. double-side display device as claimed in claim 9, wherein this first flatness layer contains silica.
19. double-side display device as claimed in claim 9, wherein this second flatness layer contains silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100060900A CN100444699C (en) | 2006-01-26 | 2006-01-26 | Two-side display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100060900A CN100444699C (en) | 2006-01-26 | 2006-01-26 | Two-side display apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1809234A true CN1809234A (en) | 2006-07-26 |
| CN100444699C CN100444699C (en) | 2008-12-17 |
Family
ID=36840867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100060900A Active CN100444699C (en) | 2006-01-26 | 2006-01-26 | Two-side display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100444699C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908532A (en) * | 2009-06-05 | 2010-12-08 | 清华大学 | Thin double-faced display OLED (Organic Light Emitting Diode) device and manufacturing method thereof |
| CN101937285A (en) * | 2010-09-29 | 2011-01-05 | 彩虹集团公司 | Touch panel and display screen integrated OLED display device |
| CN102769104A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | Flexible two-sided light-emitting organic electroluminescence device and preparation method thereof |
| CN104425548A (en) * | 2013-09-05 | 2015-03-18 | 元太科技工业股份有限公司 | Organic light emitting display |
| WO2018040236A1 (en) * | 2016-08-31 | 2018-03-08 | 武汉华星光电技术有限公司 | Double-sided oled display apparatus |
| CN108565348A (en) * | 2017-12-22 | 2018-09-21 | 张家港康得新光电材料有限公司 | Light emitting structure, its production method and luminescent device |
| CN110931652A (en) * | 2019-11-26 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | OLED double-sided display device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1227751C (en) * | 2000-02-17 | 2005-11-16 | Lg电子株式会社 | Organic electroluminescent display board and packaging method thereof |
| CN1452437A (en) * | 2002-04-17 | 2003-10-29 | 朱星厚 | Method for mfg. organic electroluminescent display panel covered with protective film |
| TWI232695B (en) * | 2002-09-17 | 2005-05-11 | Ibm | Organic light emitting diode device and method for manufacturing the organic light emitting diode device |
| CN100559430C (en) * | 2003-11-12 | 2009-11-11 | 铼宝科技股份有限公司 | Double-side display device |
-
2006
- 2006-01-26 CN CNB2006100060900A patent/CN100444699C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908532A (en) * | 2009-06-05 | 2010-12-08 | 清华大学 | Thin double-faced display OLED (Organic Light Emitting Diode) device and manufacturing method thereof |
| CN101908532B (en) * | 2009-06-05 | 2014-04-09 | 清华大学 | Thin double-faced display OLED (Organic Light Emitting Diode) device and manufacturing method thereof |
| CN101937285A (en) * | 2010-09-29 | 2011-01-05 | 彩虹集团公司 | Touch panel and display screen integrated OLED display device |
| CN101937285B (en) * | 2010-09-29 | 2012-11-28 | 彩虹集团公司 | Touch panel and display screen integrated OLED display device |
| CN102769104A (en) * | 2011-05-06 | 2012-11-07 | 海洋王照明科技股份有限公司 | Flexible two-sided light-emitting organic electroluminescence device and preparation method thereof |
| CN102769104B (en) * | 2011-05-06 | 2015-12-16 | 海洋王照明科技股份有限公司 | A kind of flexible double-sided light-emitting organic electroluminescent device and preparation method thereof |
| CN104425548A (en) * | 2013-09-05 | 2015-03-18 | 元太科技工业股份有限公司 | Organic light emitting display |
| WO2018040236A1 (en) * | 2016-08-31 | 2018-03-08 | 武汉华星光电技术有限公司 | Double-sided oled display apparatus |
| CN108565348A (en) * | 2017-12-22 | 2018-09-21 | 张家港康得新光电材料有限公司 | Light emitting structure, its production method and luminescent device |
| CN110931652A (en) * | 2019-11-26 | 2020-03-27 | 深圳市华星光电半导体显示技术有限公司 | OLED double-sided display device |
| US11380748B2 (en) | 2019-11-26 | 2022-07-05 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Organic light emitting diode dual screen display |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100444699C (en) | 2008-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1815748A (en) | Double-side displaying apparatus | |
| CN1189784C (en) | Electrooptical device, its mfg. method and electronic equipment | |
| JP4391301B2 (en) | Method for manufacturing organic electroluminescent display device | |
| CN1622727A (en) | Electroluminescent display device and thermal transfer donor film for the electroluminescent display device | |
| CN1809234A (en) | Two-side display apparatus | |
| CN1498048A (en) | Organic electroluminescence device | |
| KR20070026154A (en) | Manufacturing method of organic el element, organic el element and organic el panel | |
| CN1697578A (en) | Organic electro luminescence device and fabrication method thereof | |
| CN1487779A (en) | Organic electroluminescent display device and producing method thereof | |
| KR102083785B1 (en) | Method for Manufacturing of Organic light Emitting Display Device | |
| CN1867217A (en) | Double-side display device and forming method thereof | |
| CN1829399A (en) | Array substrate, its manufacturing method and electronic device applying same | |
| CN1921142A (en) | Organic illuminated display device and and method for making same | |
| CN101051674A (en) | System for displaying images including electroluminescent device and method for fabricating the same | |
| CN1622713A (en) | Organic electroluminescent display | |
| US8022437B2 (en) | Organic electroluminescence element and method for manufacturing thereof | |
| CN1848391A (en) | Thin film transistor and method of manufacturing same, flat panel display device and method of manufacturing same | |
| CN1822731A (en) | Packaging structure of two-side organic electroluminescence module and packaging method | |
| CN1828968A (en) | Organic light emitting device and method of manufacturing the same | |
| CN1622240A (en) | Capacitor and flat panel display having the same | |
| CN1805149A (en) | Two-side display apparatus | |
| CN1711004A (en) | Electro-luminescent display device | |
| CN1666140A (en) | Polymeric substrate for display and light emitting devices | |
| CN1805634A (en) | Two-side display apparatus | |
| CN1291504C (en) | Organic LED with hydrophobic film and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |