CN108920010A - A kind of touch screen and OLED display panel - Google Patents
A kind of touch screen and OLED display panel Download PDFInfo
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- CN108920010A CN108920010A CN201810840868.0A CN201810840868A CN108920010A CN 108920010 A CN108920010 A CN 108920010A CN 201810840868 A CN201810840868 A CN 201810840868A CN 108920010 A CN108920010 A CN 108920010A
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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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Abstract
The embodiment of the invention discloses a kind of touch screens, include：Flexible substrate layer；Touch-control sensing layer, it is set on the flexible substrate layer, it includes a plurality of first conducting wire and the second conducting wire of the overlapping setting of insulation, every one first conducting wire includes multiple is alternatively arranged and the first sensing electrode interconnected, every one second conducting wire include multiple spaced second sensing electrodes；Insulating layer is set on the touch-control sensing layer；Multiple connecting bridges are set on the insulating layer, and each connecting bridge connects two the second sensing electrodes adjacent in same second conducting wire by the via hole being set on insulating layer；Wherein, multiple dummy pattern blocks to insulate with first conducting wire and the second conducting wire are arranged at intervals on the touch-control sensing layer.The invention also discloses corresponding OLED display panels.Implement the embodiment of the present invention, can with improve touch-control sensing route in touch screen around folding endurance energy, and can preferably adjust and match the mutual capacitance of optimal node.
Description
Technical field
The present invention relates to display field, in particular to a kind of touch screen and OLED display panel.
Background technique
Touch screen has fast reaction speed, accurate positioning, supports many advantages, such as multi-point touch, long service life, wide
It is general to apply in various equipment（Such as mobile terminal）On.And flexible touch-control show be future great competitive advantage display technology,
One big advantage is the rollable property with foldability, can obtain bigger display area in this way without occupying bigger sky
Between, and be convenient for carrying.Existing folding is using flexibility PI（Polyimides）Substrate, and production thin-film electro is brilliant on it
Body, OLED（Organic light emitting diode）The elements such as device are finally formed plus flexible touch panel, polaroid, protection glass
Palletizing die group.
Due to must endure as tens of thousands of time foldings at flexible bendable, the reliability of structural strength and electrical route is equal
It is quite important, at present by using capacitance type touch-control panel as a component essential on touch-control display panel,
Plate capacitive sensing figure on flexible substrates mainly to realize；The flexible base board can seal for flexible display device film
Layer or flexible optical material layer are filled, for example, by using cyclic olefin polymer（Cyclo-olefin polymer, COP）Or it is poly- to benzene two
First acrylic materials（Polyethylene terephthalate, PET）；But capacitive sensing route is due to design and material now
The characteristic of itself, when making touch panel flexible, there are some problems, tin indium oxides（Indium-Tin Oxide, ITO）
The translucency of material is relatively good, but has certain brittleness, and for route when bending curling, route is easier to breakage；And
Other metal materials（Such as AgNW, Ag silk thread, Ag alloy material）The resistance to flexing of material is relatively good, but its translucency is poor, Yi Zao
Interfere at display panel, the problems such as display brightness is low, there is poor optical characteristics.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of touch screen and OLED display panel, can improve touching
Touch in screen touch-control sensing route in touch-control sensing layer around folding endurance energy, and can preferably adjust that match optimal node mutual
Capacitance.
In order to solve the above-mentioned technical problem, the one side of the embodiment of the present invention provides a kind of touch screen comprising has：
Flexible substrate layer；
Touch-control sensing layer is set on the flexible substrate layer, is included at least a plurality of first extended in a first direction and is led
Electric line and the second conducting wire extended in a second direction, second conducting wire are overlapped with the insulation of the first conducting wire and are set
Set, every one first conducting wire include it is multiple be alternatively arranged and the first sensing electrode interconnected, described every one second
Conducting wire includes multiple spaced second sensing electrodes；
Insulating layer is set on the touch-control sensing layer;
Multiple connecting bridges are set on the insulating layer, and each connecting bridge is connected same by the via hole being set on insulating layer
Two adjacent the second sensing electrodes in one second conducting wire；
Wherein, it is arranged at intervals with multiple and first conducting wire on the touch-control sensing layer and the second conducting wire insulate
Dummy pattern block.
Wherein, further comprise：
Passivation layer is set on the connecting bridge and the insulating layer.
Wherein, the dummy pattern block is made of material identical with the first sensing electrode or the second sensing electrode, institute
Stating dummy pattern block is circle, rectangle, diamond shape, star or bar paten block.
Wherein, the dummy pattern block is uniformly arranged among every one first sensing electrode and the second sensing electrode, and with
First sensing electrode mutually insulate with the second sensing electrode.
Wherein, the dummy pattern block is arranged between adjacent the first sensing electrode and the second sensing electrode, and with institute
The first sensing electrode is stated mutually to insulate with the second sensing electrode.
Wherein, first sensing electrode is one of driving electrodes and induction electrode, and second sensing electrode is
Another kind in driving electrodes and induction electrode.
Correspondingly, the another aspect of the embodiment of the present invention also provides a kind of OLED display panel, includes at least：
Underlay substrate；
TFT layer on the underlay substrate,
The OLED device layer being set on the TFT layer；
The encapsulated layer being set on the OLED device layer；
The touch screen being set on the encapsulated layer；
Wherein, the touch screen includes：
Flexible substrate layer；
Touch-control sensing layer is set on the flexible substrate layer, is included at least a plurality of first extended in a first direction and is led
Electric line and the second conducting wire extended in a second direction, second conducting wire are overlapped with the insulation of the first conducting wire and are set
Set, every one first conducting wire include it is multiple be alternatively arranged and the first sensing electrode interconnected, described every one second
Conducting wire includes multiple spaced second sensing electrodes；
Insulating layer is set on the touch-control sensing layer;
Multiple connecting bridges are set on the insulating layer, and each connecting bridge is connected same by the via hole being set on insulating layer
Two adjacent the second sensing electrodes in one second conducting wire；
The passivation layer being set on the connecting bridge and the insulating layer；
Wherein, it is arranged at intervals with multiple and first conducting wire on the touch-control sensing layer and the second conducting wire insulate
Dummy pattern block.
Wherein, the dummy pattern block is made of material identical with the first sensing electrode or the second sensing electrode, institute
Stating dummy pattern block is circle, rectangle, diamond shape, star or bar paten block.
Wherein, the dummy pattern block is uniformly arranged among every one first sensing electrode and the second sensing electrode, and with
First sensing electrode mutually insulate with the second sensing electrode.
Wherein, the dummy pattern block is arranged between adjacent the first sensing electrode and the second sensing electrode, and with institute
The first sensing electrode is stated mutually to insulate with the second sensing electrode.
Implement the embodiment of the present invention, has the advantages that：
In touch screen provided by the invention and OLED display panel, multiple void are set by being spaced among touch-control sensing layer
Quasi- pattern block, can make the face stress in touch-control sensing face uniform, induction line stress concentration be avoided, so that touch-control sensing face
The route of plate enhance can around folding endurance, thus solve touch panel under external force repeat bending or around collapse song when, it is possible to create
The reliability issues such as rupture of line；
Simultaneously as dummy pattern block is added, by the adjustment of size and number to dummy pattern block, driving electricity may be implemented
Optimal induced electricity capacitance can be matched between pole and induction electrode, it can preferably adjustment matches the mutual capacitance of optimal node；
In addition, the design of scattered dummy pattern block can also avoid the generation of etching line, guarantee display effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the part of induction line in a kind of one embodiment of the touch-control sensing layer of touch screen provided by the invention
Structural schematic diagram；
Fig. 2 is the structural schematic diagram of a touch unit in Fig. 1；
Fig. 3 be a kind of touch screen provided by the invention along Fig. 2 A-A to diagrammatic cross-section；
Fig. 4 is the structural schematic diagram of a touch unit in a kind of another embodiment of touch screen provided by the invention；
Fig. 5 is a kind of structural schematic diagram of one embodiment of OLED display panel provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear and complete
Ground description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show with closely related structure and/or processing step according to the solution of the present invention, and be omitted little with relationship of the present invention
Other details.
As shown in Figure 1, being induction line in a kind of one embodiment of the touch-control sensing layer of touch screen provided by the invention
Part structural schematic diagram；It combines shown in Fig. 2 to Fig. 3 together, in the present embodiment, the touch screen 1 specifically includes：
Flexible substrate layer 10, can be using COP or the flexible base board of PET material；
Touch-control sensing layer 11 is set on the flexible substrate layer, is included at least along first direction（Such as the direction y）Extend
A plurality of first conducting wire 14 and in a second direction（Such as the direction x）The second conducting wire 15 extended, second conducting wire
15 and the first overlapping setting of the insulation of conducting wire 14, every one first conducting wire 14 includes multiple being alternatively arranged and mutually interconnecting
The first sensing electrode 140 connect, every one second conducting wire 15 include multiple spaced second sensing electrodes 150；
It is understood that the quantity of the first conducting wire 14 and the second conducting wire 15 shown in Fig. 1 is only for example, it is non-to be limited
System；First sensing electrode 140 is one of driving electrodes and induction electrode, and second sensing electrode 150 is driving
Another kind in electrode and induction electrode；Specifically exist, in one example, first sensing electrode 140 is driving electrodes, institute
Stating the second sensing electrode 150 is induction electrode；And in another example, first sensing electrode 140 can be induction
Electrode, second sensing electrode 150 can be driving electrodes.Wherein driving electrodes are used for input drive signal, induction electrode
Signal is detected for receiving, when carrying out touch detection, the mutual capacitance variation of two conducting wire intersections of detection or each conduction
The self-capacitance of route changes, that is, self-capacitance or the mode of mutual capacitance is taken to obtain the position of touch point.If with first direction y and
Two direction x establish coordinate system, then obtained touch point position can then be indicated by the coordinate system, routinely way, generally will
First direction y and second direction x are defined as being mutually perpendicular to, so that capacitance detecting is easier, coordinate setting is also more convenient.Work as touching
Touching screen 1 is other forms（Round, irregular shape or curved shape）When, first direction y and second direction x can also be set to
Non-perpendicular intersection；
Insulating layer 12 is set on the touch-control sensing layer 11, and in place of covering the gap in touch-control sensing layer 11, realizes the
Insulation between one conducting wire 14 and the second conducting wire 15;
Multiple connecting bridges 151, are set on the 12 of the insulating layer, and each connecting bridge 151 is by being set on insulating layer 12
Via hole 152 connects two the second sensing electrodes 150 adjacent in same second conducting wire 150, specifically, in each connecting bridge
151 both ends pass through a via hole 152 respectively and realize being electrically connected between two neighboring second sense sensing electrode 150；
Passivation layer 13 is set on the connecting bridge 151 and the insulating layer 12, and the passivation layer 13 is for completely cutting off touch-control
The first sensing electrode 140 in inductive layer 11 is contacted with the second sensing electrode 150 with air, and route is avoided to aoxidize.
Wherein, it is arranged at intervals on the touch-control sensing layer 11 multiple conductive with first conducting wire 14 and second
The dummy pattern block 16 that route 15 insulate.
Fig. 1 and Fig. 2 shows example in, the dummy pattern block 16 is uniformly arranged on every one first sensing electrode 140
It insulate among the second sensing electrode 150, and with first sensing electrode 140 and 140 phase of the second sensing electrode, from Fig. 3
As can be seen that being provided with gap between the dummy pattern block 16 and the first sensing electrode 140 and the second sensing electrode 150, lead to
The deposition for crossing insulating layer 12 realizes insulation.
Wherein, the dummy pattern block 16 uses material identical with the first sensing electrode 140 or the second sensing electrode 150
It is made, can such as use transparent conductive material, ITO（Tin indium oxide）Material etc., the dummy pattern block 16 can be round, square
Shape, diamond shape, star or bar paten block.It is understood that wherein connecting bridge 151 also uses identical material.
It is understood that by being uniformly arranged multiple void among the first sensing electrode 140 and the second sensing electrode 150
On the one hand quasi- pattern block 16, such design can make the face stress in touch-control sensing face uniform, avoid induction line stress
Concentrate so that the route of touch-control sensing panel enhance can around folding endurance, thus solve touch panel under external force repeat bending or
Around collapse song when, it is possible to create the reliability issues such as rupture of line；Still further aspect is due to being added dummy pattern block 16, by right
The adjustment of the size and number of dummy pattern block 16 may be implemented that optimal sense can be matched between driving electrodes and sensitive electrode
Answer capacitance, it can preferably adjustment matches the mutual capacitance of optimal node；Meanwhile the design of scattered dummy pattern block is also
It can guarantee display effect to avoid the generation of etching line.
As shown in figure 4, showing the knot of a touch unit in a kind of another embodiment for touch screen that invention provides
Structure schematic diagram；The difference of itself and the structure of the touch unit in Fig. 2 is that the position that dummy pattern block 16 is arranged is different.
In the present embodiment, the dummy pattern block 16 be arranged in adjacent the first sensing electrode 140 and the second sensing electrode 150 it
Between, and insulate with first sensing electrode 140 and 150 phase of the second sensing electrode.It is understood that virtual in Fig. 4
Pattern block 16 is a strip, and in other examples, the dummy pattern block 16 equally can be set to one or more
The pattern blocks such as circle, rectangle, diamond shape or star.In the present embodiment, the beneficial effect similar with the embodiment of Fig. 2 can also be reached
Fruit.
Correspondingly, the present invention also provides a kind of OLED display panels.As shown in figure 5, showing provided by the invention one
The structural schematic diagram of one embodiment of kind OLED display panel.In the present embodiment, the OLED display panel includes at least：
Underlay substrate 5；
TFT layer 4 on the underlay substrate 5,
The OLED device layer 3 being set on the TFT layer 4；
The encapsulated layer 2 being set on the OLED device layer 3；
The touch screen 1 being set on the encapsulated layer 2；
The touch screen 1 is using earlier figures 1 to the touch screen shown in Fig. 3, more details, can refer to it is aforementioned to Fig. 1 to Fig. 3's
Description, herein without being described in detail.
In some embodiments, the structures such as polaroid, glassivation can also be set on touch screen 1.
Implement the embodiment of the present invention, has the advantages that：
In touch screen provided by the invention and OLED display panel, multiple void are set by being spaced among touch-control sensing layer
Quasi- pattern block, can make the face stress in touch-control sensing face uniform, induction line stress concentration be avoided, so that touch-control sensing face
The route of plate enhance can around folding endurance, thus solve touch panel under external force repeat bending or around collapse song when, it is possible to create
The reliability issues such as rupture of line；
Simultaneously as dummy pattern block is added, by the adjustment of size and number to dummy pattern block, driving electricity may be implemented
Optimal induced electricity capacitance can be matched between pole and induction electrode, it can preferably adjustment matches the mutual capacitance of optimal node；
In addition, the design of scattered dummy pattern block can also avoid the generation of etching line, guarantee display effect.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (10)
1. a kind of touch screen, which is characterized in that include：
Flexible substrate layer；
Touch-control sensing layer is set on the flexible substrate layer, is included at least a plurality of first extended in a first direction and is led
Electric line and the second conducting wire extended in a second direction, second conducting wire are overlapped with the insulation of the first conducting wire and are set
Set, every one first conducting wire include it is multiple be alternatively arranged and the first sensing electrode interconnected, described every one second
Conducting wire includes multiple spaced second sensing electrodes；
Insulating layer is set on the touch-control sensing layer；
Multiple connecting bridges are set on the insulating layer, and each connecting bridge is connected same by the via hole being set on insulating layer
Two adjacent the second sensing electrodes in one second conducting wire；
Wherein, it is arranged at intervals with multiple and first conducting wire on the touch-control sensing layer and the second conducting wire insulate
Dummy pattern block.
2. a kind of touch screen as described in claim 1, which is characterized in that further comprise：
Passivation layer is set on the connecting bridge and the insulating layer.
3. a kind of touch screen as claimed in claim 2, which is characterized in that the dummy pattern block uses and the first sensing electrode
Or second the identical material of sensing electrode be made, the dummy pattern block is circle, rectangle, diamond shape, star or bar paten block.
4. a kind of touch screen as claimed in claim 3, which is characterized in that the dummy pattern block is uniformly arranged on every one first
Among sensing electrode and the second sensing electrode, and mutually insulate with first sensing electrode and the second sensing electrode.
5. a kind of touch screen as claimed in claim 3, which is characterized in that the first adjacent sense is arranged in the dummy pattern block
It surveys between electrode and the second sensing electrode, and mutually insulate with first sensing electrode and the second sensing electrode.
6. touch screen as described in claim 4 or 5, wherein first sensing electrode is in driving electrodes and induction electrode
One kind, second sensing electrode be driving electrodes and induction electrode in another kind.
7. a kind of OLED display panel, includes at least：
Underlay substrate；
TFT layer on the underlay substrate；
The OLED device layer being set on the TFT layer；
The encapsulated layer being set on the OLED device layer；
The touch screen being set on the encapsulated layer；
It is characterized in that, the touch screen includes：
Flexible substrate layer；
Touch-control sensing layer is set on the flexible substrate layer, is included at least a plurality of first extended in a first direction and is led
Electric line and the second conducting wire extended in a second direction, second conducting wire are overlapped with the insulation of the first conducting wire and are set
Set, every one first conducting wire include it is multiple be alternatively arranged and the first sensing electrode interconnected, described every one second
Conducting wire includes multiple spaced second sensing electrodes；
Insulating layer is set on the touch-control sensing layer;
Multiple connecting bridges are set on the insulating layer, and each connecting bridge is connected same by the via hole being set on insulating layer
Two adjacent the second sensing electrodes in one second conducting wire；
The passivation layer being set on the connecting bridge and the insulating layer；
Wherein, it is arranged at intervals with multiple and first conducting wire on the touch-control sensing layer and the second conducting wire insulate
Dummy pattern block.
8. a kind of OLED display panel as claimed in claim 7, which is characterized in that the dummy pattern block uses and the first sense
It surveys electrode or the identical material of the second sensing electrode is made, the dummy pattern block is circle, rectangle, diamond shape, star or bar shaped
Pattern block.
9. a kind of OLED display panel as claimed in claim 8, which is characterized in that the dummy pattern block is uniformly arranged on often
Among one first sensing electrode and the second sensing electrode, and mutually insulate with first sensing electrode and the second sensing electrode.
10. a kind of OLED display panel as claimed in claim 8, which is characterized in that the dummy pattern block is arranged adjacent
The first sensing electrode and the second sensing electrode between, and mutually insulate with first sensing electrode and the second sensing electrode.
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| CN201810840868.0A CN108920010B (en) | 2018-07-27 | 2018-07-27 | Touch screen and OLED display panel |
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| WO2020113624A1 (en) * | 2018-12-03 | 2020-06-11 | 武汉华星光电半导体显示技术有限公司 | Touch electrode and touch display device |
| WO2020113778A1 (en) * | 2018-12-05 | 2020-06-11 | 武汉华星光电半导体显示技术有限公司 | Touch electrode unit, touch panel, and touch display |
| CN109669572A (en) * | 2018-12-14 | 2019-04-23 | 武汉华星光电半导体显示技术有限公司 | Touch-control display panel and preparation method thereof, touch control display apparatus |
| US10860154B2 (en) | 2018-12-14 | 2020-12-08 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Touch display panel, manufacturing method thereof, and touch display device |
| CN109889182A (en) * | 2018-12-26 | 2019-06-14 | 天津大学 | A kind of flexibility bulk accoustic wave filter |
| CN110007810A (en) * | 2019-03-21 | 2019-07-12 | 武汉华星光电半导体显示技术有限公司 | A kind of touch screen, display module and electronic device |
| CN110888550A (en) * | 2019-11-11 | 2020-03-17 | 汕头超声显示器技术有限公司 | Flexible touch sensing device and manufacturing method thereof |
| CN110968221A (en) * | 2019-12-19 | 2020-04-07 | 京东方科技集团股份有限公司 | Touch panel and display device |
| CN110968221B (en) * | 2019-12-19 | 2023-07-25 | 京东方科技集团股份有限公司 | Touch panel and display device |
| CN113961104A (en) * | 2020-07-20 | 2022-01-21 | 禾瑞亚科技股份有限公司 | Flexible touch screen, touch processing device and method and electronic system |
| CN113961104B (en) * | 2020-07-20 | 2023-11-03 | 禾瑞亚科技股份有限公司 | Flexible touch screen, touch processing device and method and electronic system |
| CN112162650A (en) * | 2020-08-12 | 2021-01-01 | 上海天马有机发光显示技术有限公司 | Touch panel and display device |
| CN112162650B (en) * | 2020-08-12 | 2024-02-23 | 武汉天马微电子有限公司 | Touch panel and display device |
| WO2023193261A1 (en) * | 2022-04-08 | 2023-10-12 | 京东方科技集团股份有限公司 | Touch layer and touch display apparatus |
| WO2023236131A1 (en) * | 2022-06-09 | 2023-12-14 | Boe Technology Group Co., Ltd. | Touch display panel and display apparatus |
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