CN103019496B - A kind of capacitance touching control module, its preparation method and capacitive touch screen - Google Patents
A kind of capacitance touching control module, its preparation method and capacitive touch screen Download PDFInfo
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- CN103019496B CN103019496B CN201210576770.1A CN201210576770A CN103019496B CN 103019496 B CN103019496 B CN 103019496B CN 201210576770 A CN201210576770 A CN 201210576770A CN 103019496 B CN103019496 B CN 103019496B
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Abstract
The invention discloses a kind of capacitance touching control module, its preparation method and capacitive touch screen, one layer of underlayer electrode layer insulated with touch control electrode layer and metal level is increased in touch module, the underlayer electrode that position of the underlayer electrode layer with the channel region corresponding to touch control electrode layer is arranged, due to underlayer electrode can be to be caused by channel region in compensating touch control electrode layer refractive index difference, and then improve the appearance of capacitance touching control module.
Description
Technical field
The present invention relates to technical field of touch control, more particularly to a kind of capacitance touching control module, its preparation method and condenser type
Touch screen.
Background technology
With developing rapidly for Display Technique, touch screen（Touch Screen Panel）Gradually throughout the life of people
In work.At present, touch screen can be divided into according to operation principle：Resistance-type, condenser type, infrared-type and surface acoustic wave type, electricity
Magnetic-type, shake ripple induction type and frustrated total internal reflection optical induction type etc..Wherein, capacitive touch screen is former with its unique touch-control
Reason, the advantages of by high sensitivity, long-life, high transmission rate, is pursued as new lover in the industry.
More extensive projecting type capacitor module is applied at present, as shown in figure 1, including successively：It is formed on underlay substrate
Metal level（Not shown in Fig. 1）, insulating barrier, touch control electrode layer and protective layer, wherein, touch control electrode layer has and intersects and put
Touch-control sensing electrode and touch-control drive electrode figure, have on metal level and adjacent touch bridged by the via on insulating barrier
The metal bridge and some metal routings of drive electrode or adjacent touch induction electrode.As touch-control sensing electrode and touch-control drive
Ditch can be formed between mutually insulated between electrode, therefore the touch-control sensing electrode and touch-control drive electrode on touch control electrode layer
Road region, the channel region can be filled by insulant.As insulant is general and prepares the electrode material of touch control electrode layer
Refractive index it is different, so, the appearance of touch module can be made in channel region present on touch control electrode layer to be deteriorated, and
And, in the insulant and electrode material of channel region（Usually ITO materials）Refractive index there is the situation of larger difference △ T
Under, this phenomenon is then particularly evident.
The content of the invention
A kind of capacitance touching control module, its preparation method and capacitive touch screen are embodiments provided, to change
The appearance of kind capacitance touching control module.
A kind of capacitance touching control module provided in an embodiment of the present invention, including touch control electrode layer and the touch control electrode layer
The metal level of insulation, the touch control electrode layer have the touch-control sensing electrode and touch-control drive electrode for intersecting and putting, and in touch-control
Channel region is formed between induction electrode and touch-control drive electrode, the touch-control that the metal level has bridge joint adjacent drives
The metal bridge of electrode or adjacent touch-control sensing electrode, also includes：
The underlayer electrode layer insulated with the touch control electrode layer and the metal level, the underlayer electrode layer with corresponding to
The underlayer electrode that the position of the channel region of the touch control electrode layer is arranged, the underlayer electrode are used to compensate the touch control electrode
The refractive index difference caused by the channel region in layer.
The embodiment of the present invention additionally provides a kind of capacitive touch screen, including above-mentioned condenser type provided in an embodiment of the present invention
Touch module.
The embodiment of the present invention additionally provides a kind of preparation method of above-mentioned capacitance touching control module, including：
Underlayer electrode layer is prepared on underlay substrate, by the figure of a patterning processes formation underlayer electrode；
Metal level is prepared on underlay substrate, by the figure of a patterning processes formation metal bridge；
Touch control electrode layer is prepared on underlay substrate, touch-control drive electrode and touch-control sensing is formed by a patterning processes
The figure of electrode, and channel region is formed between touch-control sensing electrode and touch-control drive electrode；
Insulating barrier is prepared on underlay substrate, the underlayer electrode layer, metal level and touch control electrode layer mutually insulated is made；
The adjacent touch-control drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The substrate
Position of the figure of electrode corresponding to the channel region of the touch control electrode layer, the underlayer electrode are used for compensation by the raceway groove
The refractive index difference that region is caused.
The beneficial effect of the embodiment of the present invention includes：
A kind of capacitance touching control module provided in an embodiment of the present invention, its preparation method and capacitive touch screen, in touch-control
One layer of underlayer electrode layer insulated with touch control electrode layer and metal level is increased in module, the underlayer electrode layer is with corresponding to tactile
Control electrode layer channel region position arrange underlayer electrode, due to underlayer electrode can with compensating touch control electrode layer by raceway groove
The refractive index difference that region is caused, and then improve the appearance of capacitance touching control module.
Description of the drawings
Fig. 1 is the structural representation of capacitance touching control module in prior art；
Fig. 2 is the flow chart of the preparation method of capacitance touching control module provided in an embodiment of the present invention；
Fig. 3 a- Fig. 3 e are the top view of each film layer design of capacitance touching control module provided in an embodiment of the present invention；
Fig. 4 is the structural decomposition diagram of capacitance touching control module provided in an embodiment of the present invention；
Fig. 5 is the structural representation of capacitance touching control module provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings, to capacitance touching control module provided in an embodiment of the present invention, its preparation method and capacitive touch
The specific embodiment for touching screen is described in detail.
In accompanying drawing, each layer film thickness and area size shape do not react the actual proportions of each film layer, and purpose is simply illustrated to say
Bright present invention.
A kind of capacitance touching control module provided in an embodiment of the present invention, is the knot in existing projected capacitive touch module
Underlayer electrode is added in structure, the purpose of the appearance for improving touch module, existing projected capacitive touch mould is realized
Group is specifically included：Touch control electrode layer and the metal level of touch control electrode layer insulation, wherein, touch control electrode layer has intersection and puts
Touch-control sensing electrode and touch-control drive electrode, and channel region is formed between touch-control sensing electrode and touch-control drive electrode,
Touch-control drive electrode or the metal bridge of adjacent touch-control sensing electrode that metal level has bridge joint adjacent, in projected capacitive touch
In the structure of module, the present invention is also added into following film layer structure：
The underlayer electrode layer insulated with touch control electrode layer and metal level, the underlayer electrode layer is with corresponding to touch control electrode layer
Channel region the underlayer electrode that arranges of position, the underlayer electrode is used to be caused by channel region in compensating touch control electrode layer
Refractive index difference.
In the specific implementation, capacitance touching control module provided in an embodiment of the present invention can directly be produced on display floater
On outermost laminar substrate, such as the substrate back of the color membrane substrates of display panels, it is also possible to be produced on single underlay substrate
On, here is not limited.
Specifically, as can be seen that touch-control mould from the structure of above-mentioned capacitance touching control module provided in an embodiment of the present invention
Group includes three main film layer, i.e. touch control electrode layers, metal level and underlayer electrode layer, as insulation is needed between 3 film layers, because
This, touch module also includes two insulating barriers, also, typically also has in the top of touch module and protect module by extraneous
The protective layer of environmental effect.
In the specific implementation, in touch module the hierarchical relationship between the main film layer of three flexibly can change, that is, exist
On substrate, the order of preparation film layer can be：Touch control electrode layer → metal level → underlayer electrode layer, or underlayer electrode layer
→ metal level → touch control electrode layer etc., here is no longer enumerated.
In the specific implementation, can typically use and underlayer electrode layer be prepared with touch control electrode layer identical material, i.e., typically make
Use ITO（Indium Tin Oxides, indium tin oxide）Material or other transparent conductive materials, here are not limited, this
Sample, the thickness of two film layers is set to identical, you can reach the underlayer electrode prepared just in compensating touch control electrode layer by
Channel region produces refractive index difference, and reaching improves the purpose of appearance.
Further, when touch control electrode layer and underlayer electrode layer is specifically prepared, due to the pattern just phase of two film layers
Instead, therefore, it is possible to use same mask plate, can be made into two film layers using positive photoresist and negative photoresist respectively
Pattern, can so save expensive mask plate, so as to, on the basis of touch module appearance is improved, save touch-control
The cost of manufacture of module.
At present, existing touch module is in no ad hoc structure, i.e., in the case that no bucking electrode makes, from outer
The interference signal on boundary is all had an impact to the IC performances and signal to noise ratio of touch module.Experimental data shows, when having finger and metal
During the outer rim of close touch module, testing induction electrode by test software has report point situation, i.e. finger and metal to sensing
Electrode is noisy.And above-mentioned capacitance touching control module provided in an embodiment of the present invention, in the specific implementation, can be by substrate
Electrode layer is arranged on the bottom of capacitance touching control module, the problem for preventing outer signals from disturbing, that is, play jamproof effect.
Accordingly, when the underlayer electrode layer in the capacitance touching control module is arranged on the bottom of capacitance touching control module,
Touch control electrode layer may be located at the top of metal level, and certain touch control electrode layer can also be located at the lower section of metal level, and here is not done
Limit.
Additionally, in the specific implementation, underlayer electrode layer can also be arranged at the top layer of capacitance touching control module.
Accordingly, when the underlayer electrode layer in the capacitance touching control module is arranged on the top layer of capacitance touching control module,
Touch control electrode layer may be located at the lower section of metal level, and certain touch control electrode layer can also be located at the top of metal level, and here is not done
Limit.
Also, existing touch module typically can all have different degrees of damage when the electrostatic of 14KV is contacted（NG）, resist
Electrostatic capacity is poor, is not taking any antistatic（ESD）In the case of Improving Measurements, when contacting the electrostatic of 14KV, metal bridge
With can all have different degrees of damage at via.
Further, antistatic can be played after be grounded underlayer electrode
Effect.In the ESD tests carried out after final module group assembling is finished, either test inside touch module or external edge
The electrostatic very first time all can be transferred to ground by frame, underlayer electrode（GND）, touch electrode structure will not be damaged.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of capacitive touch screen, including the present invention is implemented
The above-mentioned capacitance touching control module that example is provided, the enforcement of the touch screen may refer to the enforcement of touch module, repeat part no longer
Repeat.
The embodiment of the present invention is provided and additionally provides a kind of preparation method of capacitance touching control module, including：
Underlayer electrode layer is prepared on underlay substrate, by the figure of a patterning processes formation underlayer electrode；
Metal level is prepared on underlay substrate, by the figure of a patterning processes formation metal bridge；
Touch control electrode layer is prepared on underlay substrate, touch-control drive electrode and touch-control sensing is formed by a patterning processes
The figure of electrode, and channel region is formed between touch-control sensing electrode and touch-control drive electrode；
Insulating barrier is prepared on underlay substrate, the underlayer electrode layer, metal level and touch control electrode layer mutually insulated is made；
The adjacent touch-control drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The substrate
Position of the figure of electrode corresponding to the channel region of the touch control electrode layer, the underlayer electrode are used for compensation by the raceway groove
The refractive index difference that region is caused.
The order of each film layer in above-mentioned preparation method, is not specifically described, with the film layer order of touch module is below：
Illustrate as a example by underlayer electrode layer → metal level → touch control electrode layer, the preparation method includes：
Touch control electrode layer is prepared on underlay substrate, touch-control drive electrode and touch-control sensing is formed by a patterning processes
The figure of electrode, and channel region is formed between touch-control sensing electrode and touch-control drive electrode；
The first insulating barrier is prepared on the touch control electrode layer；
Metal level is prepared on first insulating barrier, by the figure of a patterning processes formation metal bridge；
The second insulating barrier is prepared on the metal level；
Underlayer electrode layer is prepared on second insulating barrier, by the figure of a patterning processes formation underlayer electrode；
The adjacent touch-control drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The substrate
Position of the figure of electrode corresponding to the channel region of the touch control electrode layer, the underlayer electrode are used for compensation by the raceway groove
The refractive index difference that region is caused.
As shown in Fig. 2 preparation method includes following step：
S201, underlayer electrode layer 1 is prepared on underlay substrate, the figure of underlayer electrode 11 is formed by patterning processes
Shape, Fig. 3 a are the figure of the underlayer electrode 11 to be formed, and typically can also form connection Bonding in the edge of underlayer electrode layer
The binding post PIN vias 12 of Pad；
S202, the first insulating barrier 2 is prepared on underlayer electrode layer, as shown in Figure 3 b, there is in the first insulating barrier connection
The binding post PIN vias 21 of Bonding Pad, the wiring formed in the position of binding post PIN vias 21 and underlayer electrode layer
Post PIN vias 12 are relative；
It is preferred that also having the binding post PIN vias 22 for being grounded underlayer electrode in the first insulating barrier；
S203, prepare metal level on the first insulating barrier, the figure of metal bridge 31 is formed by patterning processes, such as schemed
Shown in 3c, typically can also form the binding post PIN 32 of connection Bonding Pad, make the wiring of underlayer electrode ground connection in edge
Post PIN 33, and binding post PIN 32 and each touch-control drive electrode and touch-control sensing electrode in the touch control electrode layer that will be formed
Between connecting line 34；Wherein, the binding post PIN vias 21 for being formed in the position of binding post PIN 32 and the first insulating barrier and lining
The binding post PIN vias 12 formed in bottom electrode layer are relative, the wiring that the position of binding post PIN 33 is formed with the first insulating barrier
Post PIN vias 22 are relative；
S204, the second insulating barrier is prepared on the metal layer, as shown in Figure 3 d, there is in the second insulating barrier metal bridge via
41st, drive electrode via 42, induction electrode via 43, the binding post PIN vias 44 of connection Bonding Pad；
It is preferred that also having the binding post PIN vias 45 for being grounded underlayer electrode in the second insulating barrier；
S205, touch control electrode layer is prepared over the second dielectric, form touch-control drive electrode 51 by a patterning processes
With the figure of touch-control sensing electrode 52, as shown in Figure 3 e, and formed between touch-control sensing electrode 52 and touch-control drive electrode 51
There is channel region；Adjacent touch-control drive electrode 51 or adjacent touch-control sensing electrode 52 are bridged by metal bridge；Underlayer electrode
Figure corresponding to the channel region of touch control electrode layer position, underlayer electrode is used for the refractive index that caused by channel region of compensation
Difference.
It is preferred that after step S205, protective layer can be also prepared on touch control electrode layer, to protect touch module to prevent
Scratch.
Fig. 4 is the structural decomposition diagram of each film layer in above-mentioned touch module, it can be seen that touch control electrode layer 5 and substrate electricity
The pattern contrast of pole layer 1, therefore in above-mentioned preparation process, same mask in step S201 and step S205, can be used
Plate and opposite polarity photoresist are patterned to underlayer electrode layer 1 and touch control electrode layer 5 respectively, respectively obtain substrate electricity
The figure of pole, touch-control sensing electrode and touch-control drive electrode.Also, protective layer 6 and the first insulating barrier 2 as can be seen from Figure 4
Pattern is consistent, therefore in preparation process, it is possible to use same mask plate enters to protective layer 6 and first insulating barrier 2 respectively
Row composition.
In addition to the preparation method of the example above explanation, the preparation method can also include：
Touch control electrode layer is prepared on underlay substrate, touch-control drive electrode and touch-control sensing is formed by a patterning processes
The figure of electrode, and channel region is formed between touch-control sensing electrode and touch-control drive electrode；
The first insulating barrier is prepared on the touch control electrode layer；
Metal level is prepared on first insulating barrier, by the figure of a patterning processes formation metal bridge；
The second insulating barrier is prepared on the metal level；
Underlayer electrode layer is prepared on second insulating barrier, by the figure of a patterning processes formation underlayer electrode；
The adjacent touch-control drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The substrate
Position of the figure of electrode corresponding to the channel region of the touch control electrode layer, the underlayer electrode are used for compensation by the raceway groove
The refractive index difference that region is caused.
Those skilled in the art can deduce the preparation method of other film layer orders, and here is not being repeated.
Further, as shown in figure 5, touch control electrode layer and the thickness of underlayer electrode layer can be with identical and all make in the preparation
Make of the identical material of such as ITO materials, it is identical to ensure the overall refractive index of the touch module for completing, with good
Appearance.
A kind of capacitance touching control module provided in an embodiment of the present invention, its preparation method and capacitive touch screen, in touch-control
One layer of underlayer electrode layer insulated with touch control electrode layer and metal level is increased in module, the underlayer electrode layer is with corresponding to tactile
Control electrode layer channel region position arrange underlayer electrode, due to underlayer electrode can with compensating touch control electrode layer by raceway groove
The refractive index difference that region is caused, and then improve the appearance of capacitance touching control module.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (16)
1. a kind of capacitance touching control module, including touch control electrode layer and the metal level of touch control electrode layer insulation, the touch-control
Electrode layer has the touch-control sensing electrode and touch-control drive electrode for intersecting and putting, and in touch-control sensing electrode and touch-control drive electrode
Between be formed with channel region, the touch-control drive electrode or the adjacent touch-control sense that the metal level has bridge joint adjacent
Answer the metal bridge of electrode, it is characterised in that also include：
The underlayer electrode layer insulated with the touch control electrode layer and the metal level, the underlayer electrode layer and the touch control electrode
Layer is located at different layers；
The underlayer electrode that position of the underlayer electrode layer with the channel region corresponding to the touch control electrode layer is arranged, it is described
Orthographic projection region of the underlayer electrode on the touch control electrode layer is Chong Die with the channel region, and the underlayer electrode is used to compensate
The refractive index difference caused by the channel region in the touch control electrode layer.
2. capacitance touching control module as claimed in claim 1, it is characterised in that the touch control electrode layer and the underlayer electrode
The thickness of layer is identical and be all ITO electrode layer.
3. capacitance touching control module as claimed in claim 1, it is characterised in that the underlayer electrode layer is arranged at the electric capacity
The bottom of formula touch module.
4. capacitance touching control module as claimed in claim 3, it is characterised in that the touch control electrode layer is located at the metal level
Top.
5. capacitance touching control module as claimed in claim 1, it is characterised in that the underlayer electrode layer is arranged at the electric capacity
The top layer of formula touch module.
6. capacitance touching control module as claimed in claim 5, it is characterised in that the touch control electrode layer is located at the metal level
Lower section.
7. the capacitance touching control module as described in any one of claim 1-6, it is characterised in that the underlayer electrode ground connection.
8. a kind of capacitive touch screen, it is characterised in that include the capacitance touching control mould as described in any one of claim 1-7
Group.
9. a kind of preparation method of capacitance touching control module, it is characterised in that include：
Underlayer electrode layer is prepared on underlay substrate, by the figure of a patterning processes formation underlayer electrode；
Metal level is prepared on underlay substrate, by the figure of a patterning processes formation metal bridge；
Touch control electrode layer is prepared on underlay substrate, touch-control drive electrode and touch-control sensing electrode is formed by a patterning processes
Figure, and be formed with channel region between the touch-control sensing electrode and touch-control drive electrode；
Insulating barrier is prepared on underlay substrate, the underlayer electrode layer, metal level and touch control electrode layer mutually insulated is made；
The adjacent touch-control drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The underlayer electrode
Figure corresponding to the channel region of the touch control electrode layer position, the underlayer electrode layer is located at the touch control electrode layer
Different layers, orthographic projection region of the underlayer electrode on the touch control electrode layer are Chong Die with the channel region, the substrate
Electrode is used for the refractive index difference that compensation is caused by the channel region.
10. preparation method as claimed in claim 9, it is characterised in that include：
Underlayer electrode layer is prepared on underlay substrate, by the figure of a patterning processes formation underlayer electrode；
The first insulating barrier is prepared on the underlayer electrode layer；
Metal level is prepared on first insulating barrier, by the figure of a patterning processes formation metal bridge；
The second insulating barrier is prepared on the metal level；
Touch control electrode layer is prepared on second insulating barrier, touch-control drive electrode and touch-control sense is formed by a patterning processes
The figure of electrode is answered, and channel region is formed between touch-control sensing electrode and touch-control drive electrode；The adjacent touch-control
Drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The figure of the underlayer electrode is touched corresponding to described
The position of the channel region of control electrode layer, the underlayer electrode are used for the refractive index difference that compensation is caused by the channel region.
11. preparation methoies as claimed in claim 9, it is characterised in that include：
Touch control electrode layer is prepared on underlay substrate, touch-control drive electrode and touch-control sensing electrode is formed by a patterning processes
Figure, and be formed with channel region between touch-control sensing electrode and touch-control drive electrode；
The first insulating barrier is prepared on the touch control electrode layer；
Metal level is prepared on first insulating barrier, by the figure of a patterning processes formation metal bridge；
The second insulating barrier is prepared on the metal level；
Underlayer electrode layer is prepared on second insulating barrier, by the figure of a patterning processes formation underlayer electrode；
The adjacent touch-control drive electrode or adjacent touch-control sensing electrode are bridged by the metal bridge；The underlayer electrode
Figure corresponding to the touch control electrode layer channel region position, the underlayer electrode be used for compensation by the channel region
The refractive index difference for causing.
12. preparation methoies as described in any one of claim 9-11, it is characterised in that using same mask plate and polarity phase
Anti- photoresist is patterned to the underlayer electrode layer and the touch control electrode layer respectively.
13. preparation methoies as described in any one of claim 9-11, it is characterised in that the touch control electrode layer and underlayer electrode
The thickness of layer is identical and all use ITO materials to make.
14. preparation methoies as described in any one of claim 9-11, it is characterised in that first insulating barrier and described second
Insulating barrier all has the binding post PIN vias for making the underlayer electrode ground connection.
15. preparation methoies as described in any one of claim 9-11, it is characterised in that also include：In the touch control electrode layer
On prepare protective layer.
16. preparation methoies as claimed in claim 15, it is characterised in that using same mask plate respectively to the protective layer and
First insulating barrier is patterned.
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| CN201210576770.1A CN103019496B (en) | 2012-12-26 | 2012-12-26 | A kind of capacitance touching control module, its preparation method and capacitive touch screen |
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| CN201210576770.1A CN103019496B (en) | 2012-12-26 | 2012-12-26 | A kind of capacitance touching control module, its preparation method and capacitive touch screen |
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| CN103412697B (en) * | 2013-07-23 | 2017-02-08 | 京东方科技集团股份有限公司 | Touch screen, and manufacturing method and display device thereof |
| CN103500036B (en) | 2013-08-30 | 2015-04-29 | 京东方科技集团股份有限公司 | Manufacturing method for touch screen |
| US9433102B2 (en) | 2013-08-30 | 2016-08-30 | Boe Technology Group Co., Ltd. | Touch screen panel and method for manufacturing the same, and display device |
| US9430109B2 (en) | 2013-08-30 | 2016-08-30 | Boe Technology Group Co., Ltd. | Touch screen panel and method for manufacturing the same, and display device |
| CN104423749B (en) * | 2013-09-06 | 2018-03-13 | 宸鸿光电科技股份有限公司 | Capacitance type touch-control panel |
| CN104571672B (en) * | 2013-11-27 | 2018-05-08 | 北京京东方光电科技有限公司 | A kind of touch-screen and preparation method thereof |
| TW201546670A (en) * | 2014-06-03 | 2015-12-16 | Wintek Corp | Touch device |
| CN104679340A (en) * | 2015-03-20 | 2015-06-03 | 合肥鑫晟光电科技有限公司 | Touch substrate and display device |
| CN105607789A (en) * | 2015-12-15 | 2016-05-25 | 广东欧珀移动通信有限公司 | Sheet material for electronic device, electronic device and control method |
| CN106200068B (en) * | 2016-07-29 | 2019-10-01 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN107122078B (en) * | 2017-05-11 | 2019-06-04 | 京东方科技集团股份有限公司 | A kind of touch substrate and its manufacture craft, display panel and device |
| US11508785B2 (en) | 2020-04-08 | 2022-11-22 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display panel and display device for improving touch effects |
| CN111475051B (en) * | 2020-04-08 | 2021-11-02 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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| CN103019496A (en) | 2013-04-03 |
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