CN101059738A - Upper shining type organic shining diode transparent touch screen - Google Patents

Upper shining type organic shining diode transparent touch screen Download PDF

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Publication number
CN101059738A
CN101059738A CN 200610075581 CN200610075581A CN101059738A CN 101059738 A CN101059738 A CN 101059738A CN 200610075581 CN200610075581 CN 200610075581 CN 200610075581 A CN200610075581 A CN 200610075581A CN 101059738 A CN101059738 A CN 101059738A
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CN
China
Prior art keywords
layer
transparency conducting
cover plate
upper cover
upwards
Prior art date
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Pending
Application number
CN 200610075581
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Chinese (zh)
Inventor
赖永伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RiTdisplay Corp
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RiTdisplay Corp
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Filing date
Publication date
Application filed by RiTdisplay Corp filed Critical RiTdisplay Corp
Priority to CN201210539195.8A priority Critical patent/CN103064569B/en
Priority to CN 200610075581 priority patent/CN101059738A/en
Publication of CN101059738A publication Critical patent/CN101059738A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an upward lighting transparent touch screen with organic light emitting diode, wherein the screen comprises a baseboard, an upper cover plate, an organic light emitting diode display element, a capacitor touch controller, and a seal layer. The diode is laminated on the baseboard, the controller is laminated on the upper cover plate, and the seal layer is combined with the baseboard and the upper cover plate to seal the diode and the controller between the baseboard and the upper cover plate. The controller forms a first transparent conductive layer, an insulation layer, a second transparent conductive layer and an electromagnetic shield layer on the upper cover plate, while the shield layer can effectively reduce the electric field interface between the diode and the controller. The invention can accurately and sensitively sense touch operation, with wide application in screens.

Description

The transparent touch-sensitive panel curtain of luminescent organic LED upwards
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: the bottom-emission type and the light emitting-type that makes progress.The light of being launched owing to bottom-emission type structure can be subjected to covering of substrate upper film transistor (TFT) structure influences 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 the input tool of saving the space, has been widely used in visitor's guide system, ATM (Automatic Teller Machine), palmtop computer, point-of-sale terminals and industrial control system etc. at present.
U.S. Patent Publication No. US 2002/0186208 A1 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 this electric resistance touch-control element of two surface 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 2004/0080267 A1 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 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 to produce scratch in use.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 this lid surface in advance is easy to by crushing.
U.S. Patent Publication No. US 2004/0080267 A1 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 the preparation method that US 2004/0080267 A1 discloses is quite complicated, 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 touch control operation delicately, and still need and have the transparent structure of light in order to the various display screens that are widely used in to click 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 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 elements and adhesive layer.
This oled device is stacked and placed on this substrate, and this capacitive touch control elements is stacked and placed on this upper cover plate, and this adhesive layer engages this substrate and this upper cover plate respectively, and this oled device is closed between this substrate and this upper cover plate.
This capacitive touch control elements forms first transparency conducting layer, barrier layer and second transparency conducting layer in regular turn on the surface of this upper cover plate, and this capacitive touch control elements is closed between this substrate and this upper cover plate.
The sensing principle of this capacitive touch control elements 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 change thereupon, detect the change of capacitance size via external signal wire, to reach the purpose of distinguishing touch location.
This capacitive touch control elements 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 elements 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 elements 100 and adhesive layer 150.
This oled device 120 is stacked and placed on this substrate 130, this capacitive touch control elements 100 is stacked and placed on the surface of this upper cover plate 110, this adhesive layer 150 engages this substrate 130 and this upper cover plate 110 respectively, and this oled device 120 is sealed in the enclosure space.
This capacitive touch control elements 100 forms first transparency conducting layer 101, barrier layer 102 and second transparency conducting layer 103 in regular turn on this upper cover plate 110.Yet the structure of this capacitive touch control elements is not subjected to the restriction of this embodiment, can make second transparency conducting layer and 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 the 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 first transparency conducting layer 101 and 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 second transparency conducting layer 103, the size of capacitance thereby change thereupon, detect the change of capacitance size via external signal wire, to reach distinguishing of touch location.
This oled device 120 forms anode layer 121, luminescent layer 122 and cathode layer 123 in regular turn 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 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 glass, poly-carbonic acid (PC) fat or Polyvinylchloride transparent materials such as (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 with the transparent touch-sensitive panel curtain 10 of first embodiment of the invention is that this capacitive touch control elements 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 elements 200 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 in regular turn 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 elements 201 disturbs.
The material of this polymeric dielectric layer 204a is selected from 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 as the transparent touch-sensitive panel curtain 30 of Fig. 3 and Fig. 4 and 40 mode respectively, promptly respectively this capacitive touch control elements 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, a kind of upwards transparent touch-sensitive panel curtain of luminescent organic LED comprises:
Substrate;
Upper cover plate;
Oled device is stacked and placed on this substrate; And
The capacitive touch control elements 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 upwards transparent touch-sensitive panel curtain of 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 upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 1, wherein this capacitive touch control elements forms first transparency conducting layer, barrier layer and second transparency conducting layer in regular turn 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 upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 3, wherein this capacitive touch control elements 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 upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 1, wherein this capacitive touch control elements forms first transparency conducting layer, barrier layer and second transparency conducting layer in regular turn 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 upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 5, wherein this capacitive touch control elements also comprises electro-magnetic screen layer, and this electro-magnetic screen layer is stacked and placed on this second transparency conducting layer.
7, the upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 3, wherein this electro-magnetic screen layer comprises polymeric dielectric layer and transparency conducting layer.
8, the upwards transparent touch-sensitive panel curtain of 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 upwards transparent touch-sensitive panel curtain of 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 upwards transparent touch-sensitive panel curtain of luminescent organic LED according to claim 1, wherein this organic light-emitting diode element forms anode layer, luminescent layer and cathode layer in regular turn 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 transparent materials such as glass, polycarbonate or Polyvinylchloride.
CN 200610075581 2006-04-20 2006-04-20 Upper shining type organic shining diode transparent touch screen Pending CN101059738A (en)

Priority Applications (2)

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
CN 200610075581 CN101059738A (en) 2006-04-20 2006-04-20 Upper shining type organic shining diode transparent touch screen

Applications Claiming Priority (1)

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

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Application publication date: 20071024