CN106990864A - A kind of OLED contact panels and preparation method thereof, display device - Google Patents
A kind of OLED contact panels and preparation method thereof, display device Download PDFInfo
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- CN106990864A CN106990864A CN201710167694.1A CN201710167694A CN106990864A CN 106990864 A CN106990864 A CN 106990864A CN 201710167694 A CN201710167694 A CN 201710167694A CN 106990864 A CN106990864 A CN 106990864A
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- insulating barrier
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- General Engineering & Computer Science (AREA)
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Abstract
The present invention relates to display technology field, more particularly to a kind of OLED contact panels and preparation method thereof, display device, cause the problem of production yield is relatively low due to there is the complicated technologies such as bonding, contraposition in the manufacture craft to solve prior art OLED contact panels.The application mainly includes：Touch control electrode layer is formed on the surface of cover plate one；Insulating barrier is formed on touch control electrode layer；The OLED display layers for defining multiple pixel cells are formed on insulating barrier；Encapsulated layer is formed on OLED display layers, or, the OLED display layers for defining multiple pixel cells are formed on the surface of encapsulated layer one；Insulating barrier is formed on OLED display layers；Touch control electrode layer is formed on insulating barrier；Cover plate is formed on touch control electrode layer, this programme makes to be isolated between touch control electrode layer and OLED display layers using insulating barrier, avoid inaccurate and the problem of be pasted not strongly using the be likely to result in contraposition of being fitted of glue class, simplify Making programme, and then improve production yield.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of OLED contact panels and preparation method thereof, display device.
Background technology
In display technology field, Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED) shows
The technology of showing have the advantages that self-luminous, wide viewing angle, almost infinite high contrast, compared with low power consumption, high reaction speed, generally should
For in the display devices such as TV, mobile phone, tablet personal computer.Continuous improvement with people to electronic equipment demand for control, has
The display device of touch controllable function is received more and more attention.
As shown in figure 1, being mainly to include touch screen in the structural representation of OLED contact panels in the prior art, the figure
11st, OLED display screen 12 and encapsulated layer 13；Wherein, touch screen 11 further comprises：The touch-control electricity of touch base plate 111 and patterning
Pole 112, OLED display screen 12 further comprises：Display base plate 121 and pixel cell 122, the pixel cell 122 can be metal
And organic film be composited display function layer.
At present, touch screen 11 and OLED display screen 12 are complete independentlies, afterwards, are adhesively-bonded together to form by gelatin substance
Required OLED contact panels；And in view of the unstability of gelatin substance, it is possible to bonding can be caused loosely, and need contraposition
Laminating, easily causes dislocation, therefore, causes the production yield of OLED contact panels relatively low.
The content of the invention
The embodiment of the present application provides a kind of preparation method of OLED contact panels, to solve OLED touch-controls in the prior art
Cause the problem of production yield is relatively low due to there is the complicated technologies such as bonding, contraposition in the manufacture craft of panel.
The embodiment of the present application also provides a kind of OLED contact panels, the system to solve OLED contact panels in the prior art
Make in technique due to causing the problem of production yield is relatively low in the presence of complicated technologies such as bonding, contrapositions.
The embodiment of the present application also provides a kind of display device, the making work to solve OLED contact panels in the prior art
Cause the problem of production yield is relatively low due to there is the complicated technologies such as bonding, contraposition in skill.
The embodiment of the present invention uses following technical scheme：
A kind of preparation method of OLED contact panels, including：
Touch control electrode layer is formed on the surface of cover plate one；
Insulating barrier is formed on the touch control electrode layer；
The OLED display layers for defining multiple pixel cells are formed on the insulating barrier；
Encapsulated layer is formed on the OLED display layers；
Or,
The OLED display layers for defining multiple pixel cells are formed on the surface of encapsulated layer one；
Insulating barrier is formed on the OLED display layers；
Touch control electrode layer is formed on the insulating barrier；
Cover plate is formed on the touch control electrode layer.
Alternatively, the OLED display layers for defining multiple pixel cells are formed on the insulating barrier, are specifically included：
Using special-shaped mask plate, unfilled corner evaporation is carried out on the insulating barrier, formation defines multiple pixel cells
OLED display layers, wherein, the OLED display layers include：Negative electrode, anode and it is folded between the negative electrode and the anode
Organic luminous layer.
Alternatively, touch control electrode layer is formed on the insulating barrier, specifically included：
Using deposition or evaporation process, the touch-control driving electrodes and touch-control sensing of patterning are formed on the insulating barrier
Electrode, wherein, the touch-control driving electrodes and the touch-control sensing electrode crossing are set.
Alternatively, the material of the insulating barrier is Si oxide.
Alternatively, the thickness of the insulating barrier is not more than 0.1mm.
A kind of OLED contact panels, including：
Cover plate；
Touch control electrode layer positioned at the surface of cover plate one；
Insulating barrier on the touch control electrode layer；
The OLED display layers of multiple pixel cells are defined on the insulating barrier；
Encapsulated layer on the OLED display layers.
Alternatively, the material of the insulating barrier is Si oxide.
Alternatively, the thickness of the insulating barrier is not more than 0.1mm.
Alternatively, the OLED contact panels also include：
Bonding is in the touch control electrode layer marginal position and/or the flexible PCB of the OLED display layers marginal position
FPC。
A kind of display device, including described OLED contact panels.
Beneficial effects of the present invention are as follows：
In embodiments of the present invention, touch control electrode layer, insulating barrier, OLED display layers, encapsulated layer are sequentially formed on the cover board,
To form OLED contact panels, it is to avoid independent in the prior art to make touch screen and display screen, and using glue class to display screen
The operation fitted with touch screen, and then, solve the complicated technologies such as laminating, contraposition and cause production yield is relatively low to ask
Topic, moreover, touch control electrode layer is produced on OLED display layers in the program, constitutes the OLED contact panels of in-cell forms,
And then, manufacture craft is simplified, the quality of OLED contact panels is improved.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the touch panel structure provided schematic diagrames of OLED in the prior art；
Fig. 2 a are the step schematic diagram of production program one of the OLED contact panels involved by the embodiment of the present invention；
Fig. 2 b are the step schematic diagram of production program two of the OLED contact panels involved by the embodiment of the present invention；
Fig. 3 a are one of fabrication processing figure of OLED contact panels involved by the embodiment of the present invention；
Fig. 3 b are the two of the fabrication processing figure of the OLED contact panels involved by the embodiment of the present invention；
Fig. 4 is a kind of one of structural representation of OLED contact panels provided in an embodiment of the present invention；
Fig. 5 is the two of a kind of structural representation of OLED contact panels provided in an embodiment of the present invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step it is described in detail, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Below in conjunction with accompanying drawing, the technical scheme that each embodiment of the application is provided is described in detail.
Embodiment one
As shown in Figure 2 a, it is the step schematic diagram of production program one of OLED contact panels involved by the embodiment of the present invention,
The production program one is mainly included the following steps that：
Step 21a：Touch control electrode layer is formed on the surface of cover plate one.
One of process chart shown in reference picture 3a, in this programme, cover plate 31a material is not limited to glass or poly- first
The materials such as base methyl acrylate (PMMA), main function is mechanical support, wherein, each figure layer of OLED contact panels is depended on
Cover plate 31a is made.
Specifically, touch control electrode layer 32a is formed on a cover plate 31a surface, can be using physical vapour deposition (PVD) or chemical gas
Phase depositional mode, or, it would however also be possible to employ the mode of evaporation, or, realize have using modes such as typography, laser technologies
Body can be chosen according to process environments.Wherein, touch control electrode layer 32a is actually patterning, and touch control electrode layer 32a is typically wrapped again
Driving electrodes containing touch-control, and the touch-control sensing electrode arranged in a crossed manner with touch-control driving electrodes, both are mutually exhausted in crossover sites
Edge, and positioning and feedback control of the realization that cooperates to touch operation.
Step 22a：Insulating barrier is formed on touch control electrode layer.
Specifically, formation covering can be coated or is deposited on touch control electrode layer 32a using above-mentioned depositing operation whole
Cover plate 31a insulating barrier 33a.The step is non-existent in the prior art, is independent making touch screen in the prior art and aobvious
Display screen, and rely on touch-control substrate in touch screen to carry touch control electrode layer, similarly, display screen is carried by showing substrate
OLED display layers, afterwards, are fit together touch screen and display screen by glue class material.And in the present invention, in order to realize
In-cell structures are, it is necessary to which OLED display layers and touch control electrode layer are combined.Accordingly, it would be desirable to make touch control electrode
After layer 32a, redeposited layer insulating 33a, with realize the touch control electrode layer 32a and OLED display layers 34a that is subsequently formed it
Between mutually insulated, it is to avoid touch control electrode layer 32a and OLED display layer 34a transmission signal when influence each other.At the same time it can also to rear
The continuous OLED display layers 34a formed plays carrying effect.Moreover, it is contemplated that to depositing operation than contraposition laminating or the bonding of glue class
The aligning accuracy of technique is high, therefore, it is to avoid the problem of production yield is relatively low caused by the complicated technology such as bonding, contraposition.
Preferably, insulating barrier 33a involved in step 22a material is Si oxide, for example, dioxy can be selected
SiClx or silicon nitride.Silica is good insulating materials, while have ductility good, the low advantage of price.
Preferably, insulating barrier 33a thickness is not more than 0.1mm.However, in the prior art, showing for carrying OLED
The thickness for showing the display substrate of layer is 0.5-2.0mm, and the glue class thickness for fit display screen and touch screen is about
0.125mm, or 0.175mm etc..And the insulating barrier for being not more than 0.1mm in the present invention with thickness instead of the two film layers so that
The thickness of OLED contact panels integrally reduces nearly 1.5mm, is conducive to further realizing the lightening development of OLED contact panels.
Step 23a：The OLED display layers for defining multiple pixel cells are formed on insulating barrier.
Wherein, the main material of OLED display layers is metal and organic matter, and its type can be the organic electric shock of passive-matrix
Light emitting diode (Passive Matrix Organic Light Emitting Diode, PM-OLED) or active-matrix are organic
Electric exciting light-emitting diode (Active Matrix Organic Light Emitting Diode, AM-OLED).Wherein, should
OLED display layers mainly include：Negative electrode, anode and the organic luminous layer being folded between negative electrode and anode, hole transmission layer,
Hole injection layer, electron transfer layer, electron injecting layer etc..
Preferably, step 23a can be embodied as：Using special-shaped mask plate, unfilled corner steaming is carried out on insulating barrier 33a
Plating, to avoid the OLED display layers 34a that evaporation is formed from blocking touch control electrode layer 32a bonding region, it is ensured that formed in evaporation
After OLED display layers 34a, touch control electrode layer 32a bonding region and OLED display layers 34a bonding region can expose
Outside, in order to subsequently in touch control electrode layer 32a and/or OLED display layer 34a bonding region bonding chip, for example, flexible
Circuit board FPC.Further, it is also possible to form the OLED display layers using coating processes, bonding region therein can be by etching work
Skill is formed.
Step 24a：Encapsulated layer is formed on OLED display layers.
Specifically, it can be packaged using encapsulated layer 35a, encapsulated layer 35a can be between cover sheet and encapsulated layer
Film layer is not easily damaged, is not scratched in transport and in, strengthens the touch panel structure provided stability of OLED, it is ensured that signal transmission is steady
It is fixed.
Afterwards, by under the encapsulation stratification of the OLED contact panels of formation, according to the order of light direction from the bottom to top, i.e.,
For the OLED contact panels ultimately formed in Fig. 3 a.
In this programme, first, touch control electrode layer is formed on the surface of cover plate one, form exhausted on touch control electrode layer afterwards
Edge layer, forms the OLED display layers for defining multiple pixel cells on insulating barrier, finally, is formed on OLED display layers
Encapsulated layer.So as to the OLED contact panels of the in-cell structures needed for being formed.The manufacture craft does not need the bonding of glue class, because
This, it is to avoid the not firm problem of bonding and the problem of align inaccurate.Moreover, OLED display layers are deposited directly into insulation
On layer, Making programme is simplified, production yield is improved to a certain extent.
In addition, the present embodiment also includes scheme two, it is the OLED touch surfaces involved by the embodiment of the present invention as shown in Figure 2 b
The step schematic diagram of production program two of plate, the production program two is mainly included the following steps that：
Step 21b：The OLED display layers for defining multiple pixel cells are formed on the surface of encapsulated layer one.
Two of process chart shown in reference picture 3b, in this programme, encapsulated layer main function is mechanical support, OLED
Each figure layer of contact panel depends on encapsulated layer 31b and made.
OLED display layers 32b main material is metal and organic matter, and its type can be PM-OLED or AM-OLED.Its
In, OLED display layers mainly include：Negative electrode, anode and the organic luminous layer being folded between negative electrode and anode, hole transport
Layer, hole injection layer, electron transfer layer, electron injecting layer etc..Form OLED display layers 32b embodiment and scheme one
In on insulating barrier formed OLED display layers mode it is identical, here is omitted.
Step 22b：Insulating barrier is formed on OLED display layers.
Form side of the insulating barrier 33b embodiment with forming insulating barrier in scheme one on touch control electrode layer
Formula is identical, and here is omitted.
Step 23b：Touch control electrode layer is formed on insulating barrier.
Form mode of the touch control electrode layer 34b embodiment with forming touch control electrode layer in scheme one on the cover board
Identical, here is omitted.
Step 24b：Cover plate is formed on touch control electrode layer.
Cover plate 35b can be between cover sheet 35b and encapsulated layer 31b film layer it is not easily damaged, in transport and use not
It is scratched, strengthens the touch panel structure provided stability of OLED, it is ensured that stable signal transmission.
In this programme, first, the OLED display layers for defining multiple pixel cells are formed on the surface of encapsulated layer one, afterwards
Insulating barrier is formed on OLED display layers, touch control electrode layer is formed on insulating barrier, finally, the shape on touch control electrode layer
Into cover plate.So as to the OLED contact panels of the in-cell structures needed for being formed.Moreover, this programme need not in manufacture craft
Glue class is bonded, therefore, it is to avoid the not firm problem of bonding and the problem of align inaccurate.
It should also be noted that, the cover plate being related in this programme refers to that support can be played, keeps shape, the plate of covering effect
Material.Substrate, substrate, bottom plate for making film layer or setting hardware etc., it can be understood as the cover plate in the application.
Embodiment two
As shown in figure 4, being a kind of structural representation of OLED contact panels provided in an embodiment of the present invention, the OLED touch-controls
Panel mainly includes：Cover plate 41, the touch control electrode layer 42 positioned at the surface of cover plate 41 1, the insulation on touch control electrode layer 42
Layer 43, the OLED display layers 44 on insulating barrier 43, the encapsulated layer 45 on OLED display layers 44.Wherein, light extraction
Direction as shown by arrows, along encapsulated layer 45 to cover plate 41.
Alternatively, the touch control electrode layer 42 can be condenser type or resistive structure, specifically, electric resistance touch-control electrode layer
Touch-screen is constituted using the conductive layer of two layers of high transparency, when a finger is touching the screen, the two conductive layers of mutually insulated are being touched
The conducting of point position, forms touch signal.Capacitance touching control electrode layer includes layer of transparent conductive film, in the transparent conductive film
Four angles on be electrically connected with a long and narrow electrode, form high-frequency signal on whole transparent conductive film working face.Work as hand
When referring to touch, finger flows out with working face one coupled capacitor of formation, now a less electric current by finger, the electric current point
Not from the electrode outflow on four angles of touch-screen, flow through the air line distance of the electric currents of four electrodes and finger to corner into than
Example, controller passes through the calculating to four current ratios, you can draw contact point coordinate value, forms touch signal.Resistance-type is touched
Control electrode layer can recognize touch coordinate with capacitance touching control electrode layer according to the touch action of user, form touching instruction,
And then realize touch control operation.But because capacitance touching control is more sensitive compared to electric resistance touch-control, it can effectively lift touch control operation
Consumer's Experience, optimal, using capacitance touching control electrode layer structure.Wherein, the material of touch control electrode layer 42 can be indium tin oxygen
One or more materials combination in compound ITO, silver paste, molybdenum aluminium molybdenum, the touch control electrode layer 42 is mainly used in the touch-control of user
Operation is converted into touching signals, and transmission to chip is handled.
Alternatively, the material of insulating barrier 43 can be Si oxide.For example, silica or silicon nitride can be selected, its
In, silica is good insulating materials, while have ductility good, the low advantage of price.
Alternatively, the thickness of insulating barrier 43 is not more than 0.1mm.The presence of insulating barrier 43, can either cause touch control electrode layer
It is mutually isolated between 42 and OLED display layers 44, additionally it is possible to as substrate to carry OLED display layers, moreover, the insulating barrier 43
Thickness is less than 0.1mm so that integrally-built thicknesses of layers is relatively thin, hence it is evident that better than the knot of OLED contact panels of the prior art
Structure.
In addition, shown in reference picture 5, by under the encapsulation stratification of the OLED contact panels, further, the OLED contact panels are also
Including：Bonding is in touch control electrode layer 42 and/or the flexible PCB FPC46 of the marginal position of OLED display layers 44, generally,
IC47 can be set in the bonding region of OLED display layers 44, or, IC47 is set on the FPC of the bonding of touch control electrode layer 42.Its
Real, in the present invention, the number to the chip of bonding on OLED contact panels is not defined, can be in OLED contact panels
The upper one or more chips of bonding, for example, two chips of bonding, wherein, touch control electrode layer bonding region bonding FPC and
IC, to realize touch controllable function, meanwhile, in bonding region the bonding FPC and IC of OLED display layers, to realize display driving function.
For another example：In one multifunctional unit chip of bonding region bonding of OLED display layers, meanwhile, the multifunctional unit chip by with
Lead is connected to the bonding region of touch control electrode layer, to realize the control to touch control electrode layer.
In OLED contact panels in above scheme, comprising：Substrate base, the touch control electrode positioned at the surface of substrate base one
Layer, the insulating barrier on touch control electrode layer, the OLED display layers on insulating barrier, on OLED display layers
Encapsulated layer.It can be seen that, glue class film layer is not present in the program, also in the absence of the display substrate for carrying OLED display layers, therefore,
The thickness for reducing the insulating barrier in film layer structure, and the application to a certain extent is far smaller than glue class film of the prior art
Layer and display two thicknesses of layers sums of substrate, it is seen then that reduce thicknesses of layers to a certain extent, be conducive to OLED touch surfaces
The lightening design of plate, further, can lift the brightness of the OLED contact panels, improve the quality of OLED contact panels.
Embodiment three
The present embodiment also provides any one OLED touch surface involved in a kind of display device, including embodiment two
Plate, the display device can be mobile phone, tablet personal computer, notebook computer, desktop computer, and advertising screens etc. are any to have touch-control
The product or part of display function.For the display device other essential parts be this area common skill
Art personnel should be appreciated that what is had, will not be described here, and also should not be taken as limiting the invention.
Embodiments herein is the foregoing is only, the application is not limited to.For those skilled in the art
For, the application can have various modifications and variations.It is all any modifications made within spirit herein and principle, equivalent
Replace, improve etc., it should be included within the scope of claims hereof.
Claims (10)
1. a kind of preparation method of OLED contact panels, it is characterised in that including：
Touch control electrode layer is formed on the surface of cover plate one；
Insulating barrier is formed on the touch control electrode layer；
The OLED display layers for defining multiple pixel cells are formed on the insulating barrier；
Encapsulated layer is formed on the OLED display layers；
Or,
The OLED display layers for defining multiple pixel cells are formed on the surface of encapsulated layer one；
Insulating barrier is formed on the OLED display layers；
Touch control electrode layer is formed on the insulating barrier；
Cover plate is formed on the touch control electrode layer.
2. the method as described in claim 1, it is characterised in that formed on the insulating barrier and define multiple pixel cells
OLED display layers, specifically include：
Using special-shaped mask plate, unfilled corner evaporation is carried out on the insulating barrier, the OLED for defining multiple pixel cells is formed
Display layer, wherein, the OLED display layers include：Negative electrode, anode and it is folded in having between the negative electrode and the anode
Machine luminescent layer.
3. the method as described in claim 1, it is characterised in that form touch control electrode layer on the insulating barrier, specific bag
Include：
Using deposition or evaporation process, the touch-control driving electrodes and touch-control sensing electricity of patterning are formed on the insulating barrier
Pole, wherein, the touch-control driving electrodes and the touch-control sensing electrode crossing are set.
4. the method as described in claim any one of 1-3, it is characterised in that the material of the insulating barrier is Si oxide.
5. the method as described in claim any one of 1-3, it is characterised in that the thickness of the insulating barrier is not more than 0.1mm.
6. a kind of OLED contact panels, it is characterised in that including：
Cover plate；
Touch control electrode layer positioned at the surface of cover plate one；
Insulating barrier on the touch control electrode layer；
The OLED display layers of multiple pixel cells are defined on the insulating barrier；
Encapsulated layer on the OLED display layers.
7. OLED contact panels as claimed in claim 6, it is characterised in that the material of the insulating barrier is Si oxide.
8. OLED contact panels as claimed in claim 6, it is characterised in that the thickness of the insulating barrier is not more than 0.1mm.
9. OLED contact panels as claimed in claim 6, it is characterised in that also include：
Bonding is in the touch control electrode layer marginal position and/or the flexible PCB FPC of the OLED display layers marginal position.
10. a kind of display device, it is characterised in that including the OLED contact panels described in claim any one of 6-9.
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| CN201710167694.1A CN106990864A (en) | 2017-03-20 | 2017-03-20 | A kind of OLED contact panels and preparation method thereof, display device |
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| CN201710167694.1A CN106990864A (en) | 2017-03-20 | 2017-03-20 | A kind of OLED contact panels and preparation method thereof, display device |
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| CN108831917A (en) * | 2018-06-27 | 2018-11-16 | 维沃移动通信有限公司 | A kind of display panel and preparation method thereof, mobile terminal |
| WO2019028713A1 (en) * | 2017-08-09 | 2019-02-14 | 深圳市柔宇科技有限公司 | Preparation method for touch sensor and preparation method for display screen assembly |
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| CN101937285A (en) * | 2010-09-29 | 2011-01-05 | 彩虹集团公司 | Touch panel and display screen integrated OLED display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019028713A1 (en) * | 2017-08-09 | 2019-02-14 | 深圳市柔宇科技有限公司 | Preparation method for touch sensor and preparation method for display screen assembly |
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Application publication date: 20170728 |