CN100433358C - Double-side displaying apparatus - Google Patents
Double-side displaying apparatus Download PDFInfo
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- CN100433358C CN100433358C CNB2005100229308A CN200510022930A CN100433358C CN 100433358 C CN100433358 C CN 100433358C CN B2005100229308 A CNB2005100229308 A CN B2005100229308A CN 200510022930 A CN200510022930 A CN 200510022930A CN 100433358 C CN100433358 C CN 100433358C
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Abstract
The present invention discloses a display device with double faces, which comprises a basal plate, wherein the upper surface of the basal plate is provided with a first organic light emitting diode, and the lower surface of the basal plate is provided with a second organic light emitting diode, and the first organic light emitting diode and the second organic light emitting diode are respectively covered by a first protective layer and a second protective layer to isolate water vapor and oxygen.
Description
Technical field
The present invention is about a kind of double-side display device, particularly about a kind of two-side organic electroluminescence display unit with single substrate.
Background technology
The form of electronic product is variation gradually, and double-sided display function becomes the main characteristic of electronic product of new generation.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 display panels and organic electroluminescence panel be to pasting, or two organic electroluminescence panels are to subsides.
Fig. 1 is known double-side display device.Known double-side display device 10 comprises first display floater 11 and second display floater 12.First display floater 11 has transparency carrier 111, first electrode 112, luminescent layer 113, second electrode 114 and cap 115.Luminescent layer 113 is between first electrode 112 and second electrode 114.First electrode 112 is formed on the transparency carrier 111, and cap 115 is attached on the transparency carrier 111.Second display floater 12 also has transparency carrier 121, third electrode 122, luminescent layer 123, the 4th electrode 124 and cap 125.Luminescent layer 123 is between third electrode 122 and the 4th electrode 124.Third electrode 122 is formed on the transparency carrier 121, and cap 125 is attached on the transparency carrier 121.The cap 115 of first display floater 11 and 125 pairs of subsides of the cap of second display floater 12 are to form double-side display device 10.
As mentioned above, known double-side display device 10 has two caps 115 and 125 and two transparency carriers 111 and 121.Therefore, the volume of whole device is big, thickness is thicker, and weight is also heavier, and does not meet light, thin, short, the little trend of electronic product.In addition, two display floaters 11 and 12 get via the different process manufacturing respectively, thus its complicate fabrication process and time-consuming, and also two display floaters 11 and 12 must drive respectively.
The complex process of known double-side display device and cap and substrate number are many, and make thickness be difficult to attenuation.Double-side display device provided by the present invention can solve above-mentioned shortcoming.
Summary of the invention
The object of the present invention is to provide a kind of double-side display device, the area of the light-emitting zone on two sides is not limited to same size, and the configuration of the luminescence component on two sides need not correspond to each other.
Another object of the present invention is to provide a kind of double-side display device, be suitable for easy technology, and have thin thickness.
Double-side display device of the present invention comprises substrate, and its upper surface is provided with first Organic Light Emitting Diode, and its lower surface is provided with second Organic Light Emitting Diode.This first Organic Light Emitting Diode and this second Organic Light Emitting Diode cover with isolated steam and oxygen with first protective layer and second protective layer respectively.
The Organic Light Emitting Diode of substrate upper and lower surface utilizes the conducting wire to be connected to the external image control assembly respectively, but so independent displaying image.Structure of the present invention is fit to once to implement the two sides evaporation, also be fit to the different process stage respectively to the different surfaces evaporation.Therefore the light-emitting zone on two sides can be not limited to same size, also can have independently luminescence component configuration.Significantly, said structure is thinner and more can simplify technology than known structure.
Description of drawings
Fig. 1 is known double-side display device;
Fig. 2 is first embodiment of double-side display device of the present invention; And
Fig. 3 is second embodiment of double-side display device of the present invention.
[primary clustering symbol description]
10 double-side display devices (known), 20 double-side display devices
11 first display floaters, 21 substrates
111 transparency carriers, 22 Organic Light Emitting Diodes
112 first electrodes, 221 transparency electrodes
113 luminescent layers, 222 organic luminous layers
114 second electrodes, 223 reflecting electrodes
115 caps, 23 Organic Light Emitting Diodes
12 second display floaters, 231 transparency electrodes
121 transparency carriers, 232 organic luminous layers
122 third electrodes, 233 reflecting electrodes
123 luminescent layers, 24 protective layers
124 the 4th electrodes, 25 protective layers
125 caps, 26 bonding lands
27 image control assemblys
Embodiment
Existing conjunction with figs. describes double-side display device of the present invention in detail, and enumerates preferred embodiment and be described as follows:
Please refer to Fig. 2, be the first embodiment of the present invention.Double-side display device 20 comprises that substrate 21, two Organic Light Emitting Diodes 22 and 23 are arranged at substrate 21 upper surfaces respectively and lower surface, two protective layers 24 and 25 are coated with OLED 22 and 23 respectively with isolated steam and oxygen.The upper surface of substrate 21 and lower surface all have bonding land 26 and are positioned at protective layer 24 and protective layer 25 outsides, in order to be electrically connected image control assembly 27.
Bonding land 26 can utilize contact mat or conducting wire (not shown) to be electrically connected with image control assemblys 27 such as scanning drive chip, data driving chip, or engages with the flexible PCB (not shown).The circuit of substrate 21 upper surfaces and lower surface can be shared an image control assembly 27, or has image control assembly 27 separately.Therefore double-side display device 20 can show identical image simultaneously, or shows independently image.
Please refer to Fig. 3, be the second embodiment of the present invention.The protective layer 24 and 25 of double-side display device 20 comprises that macromolecule layer 241,251 lays respectively at this transparency carrier 21 tops and below, and is coated with OLED 22 and Organic Light Emitting Diode 23 fully; Two oxide skin(coating)s 242,252, for example silica lays respectively at this transparency carrier 21 tops and below, and covers this two macromolecule layers 241,251 fully; Two nitride layers 243,253, for example silicon nitride lays respectively at this transparency carrier 21 tops and below, and covers this two oxide skin(coating)s 242,252 fully; And two bonding lands 26, be divided into this transparency carrier upper surface and lower surface, and be positioned at this two nitride layers, 243,253 outsides.
The technology of second embodiment below is described in detail in detail.At first, form reflecting electrode 223, organic luminous layer 222 and transparency electrode 221 to be manufactured with OLED 22 at transparency carrier 21 upper surfaces.Form reflecting electrode 233, organic luminous layer 232 and transparency electrode 231 to be manufactured with OLED 23 at substrate 21 lower surfaces.On the transparency electrode 221 of Organic Light Emitting Diode 22 and 23, deposit macromolecule layer 241 and 251 respectively.At two macromolecule layers 241 and 251 oxide skin(coating) 242 and 252 on the evaporation again.And, nitride layer 243 and 253 on evaporation on two oxide skin(coating)s 242 and 252.Again external image control assembly 27 is utilized conducting wire and substrate 21 to link together at last.Incidentally, the method that forms each structure sheaf can adopt transfer technique or organic vapor phase deposition technology (organic vapor phasedeposition OVPD), and can once implement the two sides evaporation.
Among the above embodiment, Organic Light Emitting Diode 22 and 23 can be selected macromolecule electric exciting light-emitting diode (PLED) for use, or micromolecule electroluminescent diode (OLED).Reflecting electrode 223 and 233 is formed on the substrate 21, can be metal electrode, so Organic Light Emitting Diode 22 and 23 is all towards substrate 21 outsides emission light.In addition, reflecting electrode and transparency electrode all are not limited to as male or female.Incidentally, in order to improve anti-reflection effect and to avoid two-sided light leak interference phenomenon when showing simultaneously, reflecting electrode 223 and 233 can insert dark color or black insulating barrier, or replaces with black electrode, or adds antireflection material or light absorbent.
It between electrode and the luminescent layer zone of hole or electron transport.In the hole-transfer zone, alternative hole injection layer or the hole transmission layer of inserting.In the electron transport zone, alternative electron injecting 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-1-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.
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 driven unit such as thin-film transistor and use.
When the present invention and known technology compare mutually, have more and get row characteristic and advantage ready:
1. less substrate number.
2. the configuration of luminescence component more flexibly.
3. thin plate thickness.
4. easy technology.
5. preferable waterproof, anti-oxygen performance.
Above-listed detailed description specifies at the preferred embodiment of the present invention; but the foregoing description is not in order to limit scope required for protection of the present invention; allly do not break away from that equivalence of the present invention is implemented or change, all should be contained in the present invention's scope required for protection.
Claims (14)
1. double-side display device comprises:
Substrate;
First Organic Light Emitting Diode is arranged at this upper surface of base plate;
Second Organic Light Emitting Diode is arranged at this base lower surface;
First protective layer covers this first Organic Light Emitting Diode with isolated steam and oxygen; And
Second protective layer covers this second Organic Light Emitting Diode with isolated steam and oxygen.
2. double-side display device as claimed in claim 1, wherein the upper surface of this substrate and lower surface comprise that respectively the bonding land is positioned at this first protective layer and this second protective layer outside, in order to be electrically connected two image control assemblys.
3. double-side display device as claimed in claim 1, wherein this first protective layer comprises a plurality of sublayers.
4. double-side display device as claimed in claim 1, wherein this first protective layer comprises one deck inorganic material at least.
5. double-side display device as claimed in claim 4, wherein this inorganic material is selected from the group that aluminium oxide, silicon nitride, silica, carborundum and quasi cobalt carbon diaphragm constitute.
6. double-side display device as claimed in claim 1, wherein this first protective layer composite bed that is polymeric membrane, silicon oxide film and silicon nitride film.
7. double-side display device as claimed in claim 1, wherein this second protective layer comprises a plurality of sublayers.
8. double-side display device as claimed in claim 1, wherein this second protective layer comprises one deck inorganic material at least.
9 double-side display devices as claimed in claim 8, wherein this inorganic material is selected from the group that silicon nitride, silica, carborundum and quasi cobalt carbon diaphragm constitute.
10. double-side display device as claimed in claim 1, wherein this second protective layer composite bed that is polymeric membrane, silicon oxide film and silicon nitride film.
11. double-side display device as claimed in claim 1, wherein the light transmittance of this first protective layer is greater than 30%.
12. double-side display device as claimed in claim 1, wherein the light transmittance of this second protective layer is greater than 30%.
13. double-side display device as claimed in claim 1, wherein this first Organic Light Emitting Diode and this second Organic Light Emitting Diode are the macromolecule electric exciting light-emitting diode.
14. double-side display device as claimed in claim 1, wherein this first Organic Light Emitting Diode and this second Organic Light Emitting Diode are the micromolecule electric exciting light-emitting diode.
15. a double-side display device comprises:
Substrate;
First Organic Light Emitting Diode has reflecting electrode and is arranged at this upper surface of base plate;
Second Organic Light Emitting Diode has reflecting electrode and is arranged at this base lower surface;
Two macromolecule layers lay respectively at this substrate top and below, and cover this first Organic Light Emitting Diode and this second Organic Light Emitting Diode fully;
Two oxide skin(coating)s lay respectively at this substrate top and below, and cover this two high polymer layers fully;
Two nitride layers lay respectively at this substrate top and below, and cover this two oxide skin(coating)s fully; And
Two bonding lands are divided into this upper surface of base plate and lower surface, and are positioned at this two nitride layer outsides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100229308A CN100433358C (en) | 2005-12-22 | 2005-12-22 | Double-side displaying apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100229308A CN100433358C (en) | 2005-12-22 | 2005-12-22 | Double-side displaying apparatus |
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| CN1815748A CN1815748A (en) | 2006-08-09 |
| CN100433358C true CN100433358C (en) | 2008-11-12 |
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| CNB2005100229308A Active CN100433358C (en) | 2005-12-22 | 2005-12-22 | Double-side displaying apparatus |
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| GB201003920D0 (en) * | 2010-03-09 | 2010-04-21 | Glaxosmithkline Biolog Sa | Method of treatment |
| 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 |
| CN103217187B (en) | 2013-03-01 | 2015-07-15 | 合肥京东方光电科技有限公司 | Equipment for identifying layer numbers of real objects in container and system for automatically taking out real objects |
| CN103325318B (en) * | 2013-05-16 | 2015-08-19 | 京东方科技集团股份有限公司 | Display base plate and display device |
| CN104183588A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | Organic light emission device and manufacturing method thereof |
| CN104183770A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | White-light organic light emission diode and preparation method thereof |
| CN104183743A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | Double-surface display organic electroluminescent device and preparation method thereof |
| CN104183579A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | Organic light emission device and manufacturing method thereof |
| CN104183707A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | Organic light emission device and manufacturing method thereof |
| CN104183587A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | Organic electroluminescent device and preparation method thereof |
| CN104183589A (en) * | 2013-05-21 | 2014-12-03 | 海洋王照明科技股份有限公司 | White organic light emitting device and manufacturing method thereof |
| CN103915481A (en) * | 2014-03-18 | 2014-07-09 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN105097866B (en) * | 2014-05-23 | 2018-03-13 | 群创光电股份有限公司 | Organic LED display panel |
| CN106206667A (en) * | 2016-08-30 | 2016-12-07 | 武汉华星光电技术有限公司 | Double-sided OLED display and method for packing thereof |
| CN106783914B (en) * | 2016-11-28 | 2019-08-13 | 武汉华星光电技术有限公司 | Double-sided OLED display and its packaging method |
| US10355065B2 (en) | 2016-11-28 | 2019-07-16 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Double-sided display and method of packaging the same |
| CN106783925B (en) * | 2016-12-28 | 2019-08-02 | 武汉华星光电技术有限公司 | A kind of double face display panel and double-side display device |
| CN106707583A (en) * | 2016-12-28 | 2017-05-24 | 武汉华星光电技术有限公司 | Display device |
| CN107331687A (en) * | 2017-07-11 | 2017-11-07 | 武汉华星光电半导体显示技术有限公司 | OLED display with double faces and preparation method thereof |
| CN107749417B (en) * | 2017-09-18 | 2020-06-30 | 合肥惠科金扬科技有限公司 | Organic light-emitting layer assembly of double-sided display device |
| CN107749418B (en) * | 2017-09-18 | 2020-11-03 | 合肥惠科金扬科技有限公司 | Processing technology of organic light-emitting layer assembly of double-sided display device |
| CN112786668A (en) * | 2021-01-08 | 2021-05-11 | 武汉华星光电半导体显示技术有限公司 | Double-sided display panel |
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| CN1815748A (en) | 2006-08-09 |
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