CN103064569A - Transparent touch screen of upwards light emitting type organic light emitting diode - Google Patents
Transparent touch screen of upwards light emitting type organic light emitting diode Download PDFInfo
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- CN103064569A CN103064569A CN2012105391958A CN201210539195A CN103064569A CN 103064569 A CN103064569 A CN 103064569A CN 2012105391958 A CN2012105391958 A CN 2012105391958A CN 201210539195 A CN201210539195 A CN 201210539195A CN 103064569 A CN103064569 A CN 103064569A
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Abstract
The invention discloses a transparent touch screen of an upwards light emitting type organic light emitting diode. The touch screen comprises a substrate, an upper cover plate, an organic light emitting diode display element, an capacitive touch element and a sealant layer, the organic light emitting diode display element is overlaid on the substrate, the capacitive touch element is overlaid on the upper cover plate, and the sealant layer is jointed with the substrate and the upper cover plate respectively so that the organic light emitting diode display element and the capacitive touch element can be enclosed between the substrate and the upper cover plate. A first transparent conducting layer, a barrier layer, a second transparent conducting layer and an electromagnetic shielding layer of the capacitive touch element are sequentially formed on the upper cover plate, and disturbance of an electric field between the organic light emitting diode display element and the capacitive touch element can be effectively reduced by the aid of the electromagnetic shielding layer. A touch panel can accurately and sensitively induct a touch operation and can be widely applied to various display screens into which a user can input an instruction in a clicking mode.
Description
The application be submitted on April 20th, 2006, application number is 200610075581.1 Chinese patent application divides an application.
Technical field
The present invention relates to a kind of transparent touch-sensitive panel curtain, relate in particular to a kind of upwards luminescent organic LED (Organic Light Emitting Device; OLED) transparent touch-sensitive panel curtain (touch screen).
Background technology
The luminous form of organic LED display device can be divided into two kinds at present: bottom-emission type and the light emitting-type that makes progress.The light of launching owing to bottom-emission type structure can be subject to covering of substrate upper film transistor (TFT) structure affects aperture opening ratio (aperture ratio), so upwards the light emitting-type structure is the effective countermeasure that solves light-emitting area rate on traditional active light emitting display device.
Touch screen is at present simple, hommization and joint space-efficient input tool, has been widely used at present visitor's guide system, ATM (Automatic Teller Machine), palmtop computer, point-of-sale terminals and industrial control system etc.
U.S. Patent Publication No. US 2002/0186208A1 discloses a kind of el display device with touch screen, and another lip-deep electricity that it comprises transparency carrier, be arranged at the lip-deep electric resistance touch-control element of this transparency carrier, be arranged at this transparency carrier causes display element.Yet two surface these electric resistance touch-control elements of preparation and this electricity at this transparency carrier causes display element respectively, is easy to produce in process of production scratch.Moreover this electric resistance touch-control element has the not good shortcoming of sensitivity.
U.S. Patent Publication No. US 2004/0080267A1 discloses the integrated element of a kind of organic light emitting display and touch screen, and it prepares the electric resistance touch-control element in advance on the cover plate of organic light emitting display, re-uses this cover plate and encapsulates this organic light emitting display.Yet the sensitivity of this electric resistance touch-control element is not good, must use the most advanced and sophisticated things such as pen to apply pressure to this electric resistance touch-control element and can respond to, thereby be easy in use produce scratch.Moreover, use this cover plate to encapsulate in the process of this organic light emitting display, the electric resistance touch-control element that is prepared in advance this lid surface is easy to by crushing.
U.S. Patent Publication No. US 2004/0080267A1 discloses the integrated element of a kind of organic light emitting display and touch screen, and its transparency carrier in the organic light emitting display of finishing encapsulation (or cover plate) surface prepares the electric resistance touch-control element again.Yet, preparation method's very complex that US 2004/0080267A1 discloses, and the term of life of the material of organic light emitting display can shorten because of the technological factor of this electric resistance touch-control element.Moreover this electric resistance touch-control element has the not good shortcoming of sensitivity.
In sum, need on the market a kind ofly can accurately reach the contact panel of responding to delicately touch control operation, and still need and have the transparent structure of light in order to the various display screens that are widely used in to click the input instruction.
Summary of the invention
Purpose of the present invention provides a kind of transparent touch-sensitive panel curtain of upwards luminescent organic LED, and it has high light transmittance, high sensitivity and is difficult for the advantage such as scratch.
The upwards transparent touch-sensitive panel curtain of luminescent organic LED of the present invention comprises substrate, upper cover plate, oled device, capacitive touch control element and adhesive layer.
This oled device is stacked and placed on this substrate, and this capacitive touch control element is stacked and placed on this upper cover plate, and this adhesive layer engages respectively this substrate and this upper cover plate, and this oled device is closed between this substrate and this upper cover plate.
This capacitive touch control element sequentially forms the first transparency conducting layer, barrier layer and the second transparency conducting layer on the surface of this upper cover plate, and this capacitive touch control element is closed between this substrate and this upper cover plate.
The sensing principle of this capacitive touch control element is for utilizing this first transparency conducting layer and this second transparency conducting layer external power supply and signal wire, make this two-layer transparency conducting layer and between form the structure of an electric capacity and produce fixing line of electric force, and the intensity of line of electric force can directly have influence on the capacitance size.When conductive materials or finger remove to touch this upper cover plate, can change the intensity of line of electric force between this first transparency conducting layer and this second transparency conducting layer, the size of capacitance thereby thereupon change, carry out the change of Detection capacitance value size via external signal wire, to reach the purpose of distinguishing touch location.
This capacitive touch control element can comprise electro-magnetic screen layer in addition, and this electro-magnetic screen layer comprises polymeric dielectric layer and transparency conducting layer.The electric field that this electro-magnetic screen layer can effectively reduce between this organic LED structure and this capacitive touch control element disturbs.
The material of this polymeric dielectric layer is selected from epoxy resin, pi or methyl methacrylate.The material of above-mentioned transparency conducting layer is selected from tin indium oxide, indium zinc oxide or aluminum zinc oxide.
Contact panel of the present invention can accurately reach responds to touch control operation delicately, can be widely used in clicking the various display screens of input instruction.
Description of drawings
Fig. 1 is the upwards diagrammatic cross-section of the transparent touch-sensitive panel curtain of luminescent organic LED of first embodiment of the invention;
Fig. 2 is the upwards diagrammatic cross-section of the transparent touch-sensitive panel curtain of luminescent organic LED of second embodiment of the invention;
Fig. 3 is the upwards diagrammatic cross-section of the transparent touch-sensitive panel curtain of luminescent organic LED of another embodiment of the present invention; And
Fig. 4 is the upwards diagrammatic cross-section of the transparent touch-sensitive panel curtain of luminescent organic LED of another embodiment of the present invention.
Wherein, description of reference numerals is as follows:
10,20,30,40 transparent touch-sensitive panel curtains
100 capacitive touch control elements, 101 first transparency conducting layers
102 barrier layers, 103 second transparency conducting layers
120 oled devices, 121 anode layers
122 luminescent layers, 123 cathode layers
130 substrates, 150 adhesive layers
200 capacitive touch control elements, 204 electro-magnetic screen layers
204a polymeric dielectric layer 204b transparency conducting layer
Embodiment
Fig. 1 is the upwards diagrammatic cross-section of the transparent touch-sensitive panel curtain 10 of luminescent organic LED of first embodiment of the invention.This transparent touch-sensitive panel curtain 10 comprises substrate 130, upper cover plate 110, oled device 120, capacitive touch control element 100 and adhesive layer 150.
This oled device 120 is stacked and placed on this substrate 130, this capacitive touch control element 100 is stacked and placed on the surface of this upper cover plate 110, this adhesive layer 150 engages respectively this substrate 130 and this upper cover plate 110, and this oled device 120 is sealed in the enclosure space.
This capacitive touch control element 100 sequentially forms the first transparency conducting layer 101, barrier layer 102 and the second transparency conducting layer 103 on this upper cover plate 110.Yet the structure of this capacitive touch control element is not subjected to the restriction of this embodiment, can make the second transparency conducting layer and the first transparency conducting layer together be formed at upper cover plate 110 surfaces yet.
The principle of work of this capacitance type touch-control structure 100 is to utilize external power supply and the signal wire of this first transparency conducting layer 101 and this second transparency conducting layer 103, make to form the structure of an electric capacity between the first transparency conducting layer 101 and the second transparency conducting layer 103 and produce fixing line of electric force, and the intensity of line of electric force can directly have influence on the size of capacitance.
When conductive materials or finger go to touch this upper cover plate 110, can change the intensity of line of electric force between this first transparency conducting layer 101 and the second transparency conducting layer 103, the size of capacitance thereby thereupon change, carry out the change of Detection capacitance value size via external signal wire, to reach distinguishing of touch location.
This oled device 120 sequentially forms anode layer 121, luminescent layer 122 and cathode layer 123 on this substrate 130.
The material of this first transparency conducting layer 101 and this second transparency conducting layer 103 is selected from tin indium oxide (indium tin oxide; ITO), indium zinc oxide (indium zinc oxide; IZO) or aluminum zinc oxide (aluminum zinc oxide; AZO).The material of this barrier layer 102 is selected from the materials such as epoxy resin (Epoxy), pi (Poly-Imide) or methyl methacrylate.
The material of this substrate 130 and this upper cover plate 110 is selected from the transparent materials such as glass, poly-carbonic acid (PC) fat or Polyvinylchloride (PVC).
Fig. 2 is the upwards diagrammatic cross-section of the transparent touch-sensitive panel curtain 20 of luminescent organic LED of second embodiment of the invention.Different from the transparent touch-sensitive panel curtain 10 of first embodiment of the invention is that this capacitive touch control element 200 also comprises electro-magnetic screen layer 204, and this electro-magnetic screen layer 204 comprises polymeric dielectric layer 204a and transparency conducting layer 204b.This capacitive touch control element 200 sequentially forms this first transparency conducting layer 101, this barrier layer 102, this second transparency conducting layer 103, this polymeric dielectric layer 204a and this transparency conducting layer 204b on this upper cover plate 110.
The electric field that this electro-magnetic screen layer 204 can effectively reduce between this oled device 120 and this capacitive touch control element 201 disturbs.
The material of this polymeric dielectric layer 204a is selected from the materials such as epoxy resin, pi or methyl methacrylate.The material of this transparency conducting layer 204b is selected from tin indium oxide, indium zinc oxide or aluminum zinc oxide.
The upwards transparent touch-sensitive panel curtain of luminescent organic LED of first and second embodiment of the present invention also can be implemented such as the transparent touch-sensitive panel curtain 30 of Fig. 3 and Fig. 4 and 40 mode respectively, namely respectively this capacitive touch control element 100 and 200 is disposed at the upper surface of this upper cover plate 110.
Technology contents of the present invention and technical characterstic disclose as above, yet those skilled in the art still may be based on inspiration of the present invention and announcements and done all replacement and modifications that does not break away from spirit of the present invention.Therefore, protection scope of the present invention should be not limited to the scope that embodiment discloses, and should comprise various do not break away from replacement of the present invention and modifications, and is contained by the scope of appended claim.
Claims (13)
1. transparent touch-sensitive panel curtain of luminescent organic LED upwards comprises:
Substrate;
Upper cover plate;
Oled device is stacked and placed on this substrate; And
Capacitive touch control element is stacked and placed on the surface of this upper cover plate, and this upper cover plate engages this substrate, and this oled device is closed between this substrate and this upper cover plate.
2. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 1, wherein this transparent touch-sensitive panel curtain also comprises adhesive layer, engage this substrate and this upper cover plate, and this oled device is closed between this substrate and this upper cover plate.
3. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 1, wherein this capacitive touch control element sequentially forms the first transparency conducting layer, barrier layer and the second transparency conducting layer in the upper surface of this upper cover plate, and this first transparency conducting layer and this second transparency conducting layer form the structure of electric capacity.
4. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 3, wherein this capacitive touch control element also comprises electro-magnetic screen layer, and this electro-magnetic screen layer is stacked and placed between this first transparency conducting layer and this upper cover plate.
5. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 1, wherein this capacitive touch control element sequentially forms the first transparency conducting layer, barrier layer and the second transparency conducting layer in the lower surface of this upper cover plate, and this first transparency conducting layer and this second transparency conducting layer form the structure of electric capacity.
6. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 5, wherein this capacitive touch control element also comprises electro-magnetic screen layer, and this electro-magnetic screen layer is stacked and placed on this second transparency conducting layer.
7. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 3, wherein this electro-magnetic screen layer comprises polymeric dielectric layer and transparency conducting layer.
8. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 7, wherein the material of this polymeric dielectric layer is selected from epoxy resin, pi or methyl methacrylate.
9. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 7, wherein the material of this transparency conducting layer is selected from tin indium oxide, indium zinc oxide or aluminum zinc oxide.
10. the transparent touch-sensitive panel curtain of upwards luminescent organic LED according to claim 1, wherein this organic light-emitting diode element sequentially forms anode layer, luminescent layer and cathode layer on this substrate.
11. the upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 3, wherein the material of this first transparency conducting layer and this second transparency conducting layer is selected from tin indium oxide, indium zinc oxide or aluminum zinc oxide.
12. the upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 3, wherein the material of this barrier layer is selected from epoxy resin, pi or methyl methacrylate.
13. the upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 1, wherein the material of this substrate and this upper cover plate is selected from the transparent materials such as glass, polycarbonate or Polyvinylchloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210539195.8A CN103064569B (en) | 2006-04-20 | 2006-04-20 | The upwards transparent touch screen of luminescent organic LED |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610075581 CN101059738A (en) | 2006-04-20 | 2006-04-20 | Upper shining type organic shining diode transparent touch screen |
| CN201210539195.8A CN103064569B (en) | 2006-04-20 | 2006-04-20 | The upwards transparent touch screen of luminescent organic LED |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610075581 Division CN101059738A (en) | 2006-04-20 | 2006-04-20 | Upper shining type organic shining diode transparent touch screen |
Publications (2)
| Publication Number | Publication Date |
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| CN103064569A true CN103064569A (en) | 2013-04-24 |
| CN103064569B CN103064569B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210539195.8A Expired - Fee Related CN103064569B (en) | 2006-04-20 | 2006-04-20 | The upwards transparent touch screen of luminescent organic LED |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440067A (en) * | 2013-08-07 | 2013-12-11 | 北京京东方光电科技有限公司 | Display panel, preparation method thereof and display device |
| CN108182008A (en) * | 2017-12-29 | 2018-06-19 | 武汉华星光电半导体显示技术有限公司 | OLED touch panels and OLED touch devices |
| CN110362221A (en) * | 2018-03-26 | 2019-10-22 | 财团法人工业技术研究院 | Touch-control display panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536527A (en) * | 2003-01-17 | 2004-10-13 | ��˹���´﹫˾ | Organic luminous diode display and touch screen |
| WO2004114105A2 (en) * | 2003-06-14 | 2004-12-29 | Ronald Peter Binstead | Improvements in touch technology |
| CN1652651A (en) * | 2005-03-23 | 2005-08-10 | 友达光电股份有限公司 | Touch-controllable organic luminescent display |
| JP2006086517A (en) * | 2004-08-18 | 2006-03-30 | Samsung Sdi Co Ltd | Emi shielding film and plasma display device |
-
2006
- 2006-04-20 CN CN201210539195.8A patent/CN103064569B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1536527A (en) * | 2003-01-17 | 2004-10-13 | ��˹���´﹫˾ | Organic luminous diode display and touch screen |
| WO2004114105A2 (en) * | 2003-06-14 | 2004-12-29 | Ronald Peter Binstead | Improvements in touch technology |
| JP2006086517A (en) * | 2004-08-18 | 2006-03-30 | Samsung Sdi Co Ltd | Emi shielding film and plasma display device |
| CN1652651A (en) * | 2005-03-23 | 2005-08-10 | 友达光电股份有限公司 | Touch-controllable organic luminescent display |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440067A (en) * | 2013-08-07 | 2013-12-11 | 北京京东方光电科技有限公司 | Display panel, preparation method thereof and display device |
| US9690405B2 (en) | 2013-08-07 | 2017-06-27 | Boe Technology Group Co., Ltd. | Display panel and manufacturing method thereof, and display device |
| CN108182008A (en) * | 2017-12-29 | 2018-06-19 | 武汉华星光电半导体显示技术有限公司 | OLED touch panels and OLED touch devices |
| CN108182008B (en) * | 2017-12-29 | 2020-11-06 | 武汉华星光电半导体显示技术有限公司 | OLED touch panel and OLED touch device |
| CN110362221A (en) * | 2018-03-26 | 2019-10-22 | 财团法人工业技术研究院 | Touch-control display panel |
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| CN103064569B (en) | 2016-08-10 |
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Granted publication date: 20160810 Termination date: 20200420 |