CN108710446A - Touch-control display panel - Google Patents
Touch-control display panel Download PDFInfo
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- CN108710446A CN108710446A CN201810329988.4A CN201810329988A CN108710446A CN 108710446 A CN108710446 A CN 108710446A CN 201810329988 A CN201810329988 A CN 201810329988A CN 108710446 A CN108710446 A CN 108710446A
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- common electrode
- touch
- display panel
- slit
- control 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
- G06F3/0412—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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04111—Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of touch-control display panel, including：First substrate；Thin film transistor (TFT) is arranged on the first substrate；Pixel electrode layer is arranged on the thin film transistor (TFT), and the pixel electrode layer connects drain electrode or the source electrode of the thin film transistor (TFT) by contact hole；Common electrode layer, it is arranged on the first substrate, is located under the pixel electrode layer, the common electrode layer is divided into multiple common electrodes, slit is formed between the adjacent common electrode, the slit is connect with the contact hole on the slit.Touch-control display panel provided by the invention improves touch control detection ability and display effect.
Description
Technical field
The present invention relates to display touch-control field more particularly to touch-control display panels.
Background technology
With the development of human-computer interaction technology, touch technology is increasingly used on various displays.Capacitive character is touched
For control technology since its is wear-resistant, long lifespan, maintenance cost is low when user uses, and can support gesture identification and multi-point touch
The advantages of and be widely used.
Capacitive character touch technology can be divided into self-capacitance touch-control skill according to the detection mode of the capacitance between different objects
Art and mutual capacitance type touch control technology.Self-capacitance touch technology detects defeated according to the capacitance variations between input object and electrode
Enter presence, position and the movement of object on the touchscreen.Mutual capacitance type touch control technology is then according between electrode caused by input object
Capacitance variations detect presence, position and the movement of input object on the touchscreen.
However, for mutual capacitance type touch control technology, need electrode layer being divided into multiple touch control electrodes to detect display surface
The capacitance of plate different location.In this way, slit can be formed between adjacent touch electrode.It is multiplexed with touch-control electricity particularly with common electrode
When pole, due to the opening that can have some to be connected with source-drain electrode for pixel electrode in common electrode, and such setting can make
Common electrode these be open above-mentioned slit between critical size (critical dimension, CD) it is meticulous so that
Technology difficulty increases, influences panel aperture opening ratio, the resistance of common electrode increases, and the increase of resistance further results in common electrode
The problems such as upper signal delay increases, and then influence the touch control detection ability and display effect of touch-control display panel.
Invention content
The present invention provides a kind of touch-control display panel, improves touch-control to overcome the problems of the above-mentioned prior art
The touch control detection ability and display effect of display panel.
A kind of aspect according to the present invention provides a kind of touch-control display panel, including：First substrate；Thin film transistor (TFT), if
It sets on the first substrate；Pixel electrode layer is arranged on the thin film transistor (TFT), and the pixel electrode layer is by connecing
Contact hole connects drain electrode or the source electrode of the thin film transistor (TFT)；Common electrode layer is arranged on the first substrate, is located at described
Under pixel electrode layer, the common electrode layer is divided into multiple common electrodes, and slit is formed between the adjacent common electrode,
The slit is connect with the contact hole on the slit.
Compared with prior art, slit of the present invention by being formed between adjacent common electrode and connecing on slit
Contact hole connects, and to improve the touch control detection ability and display effect of touch-control display panel, and has following advantage：
1) critical size of common electrode is increased, the difficulty of common electrode pattern making technology is reduced；
2) reduce the resistance of common electrode, and then reduce the signal delay in common electrode.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and advantage will become
It is more obvious.
Fig. 1 shows the schematic diagram of the touch-control display panel of the prior art.
Fig. 2 shows the schematic sectional views of the parts touch-control display panel AA ' of the prior art.
Fig. 3 shows the schematic diagram of touch-control display panel according to a first embodiment of the present invention.
Fig. 4 shows the schematic sectional view of the parts touch-control display panel BB ' according to a first embodiment of the present invention.
Fig. 5 shows the schematic diagram of touch-control display panel according to a second embodiment of the present invention.
Fig. 6 shows the schematic diagram of touch-control display panel according to a third embodiment of the present invention.
Fig. 7 shows the schematic diagram according to touch drive electrode of the present invention and touch-control sensing electrode.
Fig. 8 shows the sectional view according to touch-control display panel of the present invention.
Fig. 9 shows the schematic diagram of common electrode according to prior art.
Figure 10 shows the equivalent resistance figure of common electrode according to prior art.
Figure 11 shows the schematic diagram of common electrode according to a first embodiment of the present invention.
Figure 12 shows the equivalent resistance figure of common electrode according to a first embodiment of the present invention.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In the following description, many details are provided to fully understand embodiments of the present invention to provide.However,
One of ordinary skill in the art would recognize that without one or more in specific detail, or using other methods, constituent element, material
Material etc., can also put into practice technical scheme of the present invention.In some cases, be not shown in detail or describe known features, material or
Person operates to avoid the fuzzy present invention.
The attached drawing of the present invention is only used for signal relative position relation, and the thickness at certain positions uses the plotting mode lavished praise on oneself
In order to understand, the thickness in attached drawing does not represent the proportionate relationship of practical thickness.
It should be understood that when title element or layer another element or layer " on " or " connection " another element or when layer, it can
Directly on another element or layer or to be directly connected to another element or layer, or there may also be the element of insertion or layers.
The prior art of the present invention can refer to Fig. 1 and touch-control display panel shown in Fig. 2 100.Touch-control display panel 100 includes
Substrate 190, a plurality of grid line 140, multiple data lines 130, multiple thin film transistor (TFT)s 160, pixel electrode layer 120 and common electrode
Layer 110.Wherein, pixel electrode layer 120 connects drain electrode or the source electrode 162 of thin film transistor (TFT) 160 by the first contact hole 121.
Common electrode layer 110 is divided into multiple common electrodes 111, adjacent common electrode 111 (such as common electrode 111a and common electrode
Slit 112 is formed between 111b).
Since common electrode layer 110 is located at 162 institute of drain electrode or source electrode of pixel electrode layer 120 and thin film transistor (TFT) 160
Metal layer between, the first contact hole 121 needs, across common electrode layer 110, to make pixel electrode layer 120 and film
The drain electrode of transistor 160 or source electrode 162 connect, and therefore, common electrode 111 has the opening passed through for the first contact hole 121
113。
However, in the way of the prior art, the critical size of the public electrode 111 between slit 112 and opening 113
(as shown in d1 and d2) is meticulous, increases the manufacturing process difficulty of common electrode 111.Meanwhile shape as common electrode 111 makes
The resistance for obtaining common electrode 111 compares other common electrode resistance biggers not being open, and in turn results in and believes in common electrode 111
Number delay.
In order to improve the defect of the prior art, the present invention provides a kind of touch-control display panel.Come referring first to Fig. 3 and Fig. 4
The first embodiment of touch-control display panel provided by the invention is described.
In the first embodiment, touch-control display panel 200 includes substrate 290, multiple thin film transistor (TFT)s 260, pixel electrode
Layer 220 and common electrode layer 210.
Multiple thin film transistor (TFT)s 260 are arranged on substrate 290.Preferably, it is arranged in each pixel region 280 at least one
Thin film transistor (TFT) 260.For example, a thin film transistor (TFT) 260 is only arranged in the present embodiment, in each pixel region 280.And one
In a little change case, multiple thin film transistor (TFT)s 260 can also be set in pixel region 280.Each thin film transistor (TFT) 260 include grid 261,
Source electrode 263, drain electrode 262.The drain electrode 262 of thin film transistor (TFT) 260 connect with pixel electrode layer 220 by the first contact hole 221 (
It is connect, but not constituted to the present embodiment with pixel electrode layer 220 by the first contact hole 221 with drain electrode 262 in the present embodiment
It limits, can also be to be connect with pixel electrode layer 220 by the first contact hole 221 with source electrode 263).
In the present embodiment, thin film transistor (TFT) 260 is the thin film transistor (TFT) of top gate structure.Thin film transistor (TFT) 260 is partly led
Body layer 250 is located between the metal layer and substrate 290 at 261 place of grid of thin film transistor (TFT) 260.The source of thin film transistor (TFT) 260
Metal layer where pole 263 and drain electrode 262 is located on the metal layer at 261 place of grid.The source electrode 263 of thin film transistor (TFT) 260
It is connected to semiconductor layer 250 by contact hole.The drain electrode 262 of thin film transistor (TFT) 260 is connected to semiconductor layer by contact hole
250。
The structure of thin film transistor (TFT) 260 is not so limited, can also have bottom grating structure.Thin film transistor (TFT) 260
Structure can change with different embodiments, and this is no longer going to repeat them.
It should be noted that in the present embodiment, the material of semiconductor layer 250 can be non-crystalline silicon, polysilicon, oxide
In any one, the embodiment of the present invention is not construed as limiting this.
Pixel electrode layer 220 is arranged on thin film transistor (TFT) 260.Pixel electrode layer 220 is patterned as multiple pixels
Electrode.Preferably, a pixel electrode is set in a pixel region 280.Pixel electrode layer 220 is connected by the first contact hole 221
Connect the drain electrode 262 (or source electrode 263) of thin film transistor (TFT) 260.220 pattern of pixel electrode layer can change with different embodiments.
Common electrode layer 210 is arranged on substrate 290, and under pixel electrode layer 220.Preferably, electricity is shared
It is additionally provided with insulating layer between pole layer 210 and pixel electrode layer 220.Common electrode layer 210 is divided into multiple common electrodes 211.
Specifically, common electrode 210 is multiplexed with touch control electrode in embodiments of the present invention.
By change the prior art slit track, make adjacent common electrode 211 (such as common electrode 211a and share
Electrode 211b) between the slit 212 that is formed extend to the position of connection opening 213, to make shape between adjacent common electrode 211
At slit 212 connect with the first contact hole 221 on the slit 212.Specifically, due to common electrode layer 210
Between the metal layer where the drain electrode 262 (or source electrode 263) of pixel electrode layer 220 and thin film transistor (TFT) 260, the first contact hole
221 (or the source electrodes of drain electrode 262 for needing could to make across common electrode layer 210 pixel electrode layer 220 and thin film transistor (TFT) 260
263) it connects, therefore, in common electrode 211 further includes the opening 213 being connected with the first contact hole 221.For example, opening 213 by
First contact hole 221 is across the formation of common electrode 211.In some change case, it is contemplated that process deviation, be open 213 internal diameter
More than outer diameter of first contact hole 221 in common electrode layer 210, to prevent the first contact hole 221 and common electrode layer 210 from connecing
It touches and then short circuit occurs.The slit 212 formed between adjacent common electrode 211 with opening 213 connect with positioned at slit 212 it
On the first contact hole of part 221 connect.
Specifically, in the present embodiment, forming the slit 212 extended along Y-direction between adjacent common electrode 211, respectively
Slit 212 is connect with the first contact hole of part 221 on slit 212.In some embodiments, due to common electrode
211 can have in each pixel region 280 there are one the first contact hole 221, then have the first contact hole of part 221 not with slit
212 connections.
In the present embodiment, touch-control display panel 200 further includes a plurality of grid line 240 and multiple data lines 230.A plurality of grid
Polar curve 240 is arranged on substrate 290.Grid line 240 is preferably located at same metal with the grid of thin film transistor (TFT) 260 261
Layer.Data line 230 is preferably with the source electrode of thin film transistor (TFT) 260 263 and drain electrode 262 and positioned at same metal layer.
A plurality of grid line 240 extends in X direction, and is arranged along Y-direction.Multiple data lines 230 setting substrate 290 it
On.Multiple data lines 230 extend along Y-direction, and arrange in X direction.Extending direction described herein is not by 240 He of grid line
Data line 230 defines along the straight line that X-direction and Y-direction extend, grid line 240 and data line 230 can also be in X direction and
The curve of Y-direction.Grid line 240 and the transposition insulator on substrate 290 of data line 230.A plurality of grid line 240 and multiple data lines
230 area defined limit multiple pixel regions 280.
In the present embodiment, the metal layer where grid line 240 is located at the metal layer and substrate 290 at 230 place of data line
Between.But the position relationship of the metal layer where the metal layer and data line 230 where grid line 240 is without being limited thereto.It is specific and
Speech, common electrode layer 210 are located on the metal layer at 230 place of data line.The slit formed between adjacent common electrode 211
212 exposures at least partly data line 230.In the present embodiment, the corresponding data line between two adjacent apertures does not expose,
The 212 expose portion data line 230 of slit extended along Y-direction formed between adjacent common electrode 211.Common electrode 211
Data line 230 of the covering corresponding to the part of the first contact hole 221.In other words, the covering of common electrode 211 is in the X direction with the
The data line 230 of one contact hole, 221 corresponding position.
By the embodiment of the present embodiment, the common electrode 211 of touch-control display panel 200 212 at the slit at key
Size d3 increases, and reduces the difficulty of 211 manufacturing process of common electrode, meanwhile, common electrode 211 increases covering part data line
230 part, such design can increase common electrode 211 on the basis of ensureing that adjacent common electrode is insulated from each other
Area, to reduce the resistance in common electrode 211, and then improve the signal delay in common electrode 211.
Fig. 5 shows the schematic diagram of touch-control display panel 300 according to a second embodiment of the present invention.Touch-control display panel
300 structure is similar with the structure of touch-control display panel 200 in embodiment corresponding to Fig. 3 and Fig. 4, and something in common is herein no longer
It repeats, foregoing teachings can be referred to, it is different from the structure of touch-control display panel 200 in embodiment corresponding to Fig. 3 and Fig. 4
It is that data line 330 is completely exposed in the slit 312 formed between adjacent common electrode 311.Substantially the slit of the prior art is not changed
Track, but opening 313 is connected to slit 312, without considering common electrode 311 at critical size d1 in the prior art
Processing procedure difficulty.In the present embodiment, although the opening 313 that is not connect with slit 312 in slit 312 and of common electrode 311 it
Between critical size d4 it is thinner compared to the critical size d3 in embodiment corresponding to Fig. 3 and Fig. 4, but compared to the prior art in
For, the present embodiment may not need the processing procedure difficulty for considering common electrode 311 at critical size d1 in the prior art.Meanwhile altogether
111 shape of common electrode that the prior art is equivalent to 311 shape of electrode has lacked one corresponding to the position of contact hole in the X direction
Part.In other words, the shape of the common electrode 111 of the shape of common electrode 311 and the prior art is substantially similar, in this way, altogether
When with 311 processing procedure of electrode, the change of mask plate is also smaller, and then simplifies the making technology of common electrode 311, reduces and is fabricated to
This.
Specifically, in the present embodiment, slit 312 is opened with (the connecting the first contact hole) positioned at 312 side of slit
Mouth 313 connects.In some change case, as shown in fig. 6, slit 712 (can also connect first with positioned at 712 both sides of slit
Contact hole) connection of opening 713, further decrease the processing procedure difficulty of common electrode.
Specifically, in embodiments of the present invention, common electrode is multiplexed with touch control electrode.Preferably, common electrode is multiplexed
For the touch drive electrode of mutual capacitance type.Multiple common electrodes extend along Y-direction.Projection edge of each common electrode on substrate
X-direction covers at least one pixel region.Wherein, X-direction and Y-direction are orthogonal.For example, in the embodiment shown in fig. 3, it is each total
Two pixel regions 280 are covered in X direction with projection of the electrode 211 on substrate.It is formed along the side Y between adjacent common electrode 211
To the slit 212 of extension.When common electrode 211 is multiplexed with the touch drive electrode of mutual capacitance type, Fig. 7 and Fig. 8 is can refer to, is passed through
The capacitance between touch drive electrode 211 and 610 overlapping region of touch-control sensing electrode is measured to determine the position of touch-control generation.
In embodiment shown in Fig. 7, multiple touch-control sensing electrodes 610 for extending in X direction can also be arranged in another substrate 620 it
On, and it is opposite with touch drive electrode, to form capacitance between touch drive electrode and touch-control sensing electrode crossover region.It touches
Control sensing electrode 610 is arranged in side of the substrate 620 far from substrate 290.Another substrate 620, such as can be color membrane substrates.
In some change case, the multiple touch-control sensing electrodes 610 extended in X direction can also be arranged on substrate 290.At other
In embodiment, common electrode 211 can also be multiplexed with self-capacitance touch control electrode, and the present invention is defined not to this.
Since common electrode 211 is multiplexed with touch control electrode, the resistance sizes of common electrode 211 are to touch-control display surface
Touch accuracy, accuracy and the real-time of plate play an important role.The present invention is by changing common electrode shape, Jin Erxiang
Than the prior art, the resistance of common electrode can also be reduced to a certain extent, improves the touch accuracy of touch-control display panel.Below
It will carry out the resistance of common electrode more provided by the invention and prior art common electrode in conjunction with Fig. 9 to Figure 12.
Show that multiple common electrodes 411 in the prior art are (i.e. shown in FIG. 1 total referring first to Fig. 9 and Figure 10, Fig. 9
With electrode 111).411 critical size of common electrode (for example, d1 and d2) between slit 412 and opening 413 is relatively thin, increases
The difficulty of 411 making technology of common electrode.In fig.9, each common electrode 411 only includes the two (connections arranged along Y-direction
First contact hole) opening 413, each common electrode 411 covers two pixel regions 480 in the X direction.
According to common electrode 411 shown in Fig. 9, as unit of a pixel region 480, provide as shown in Figure 10 for calculating
The equivalent resistance figure of the common electrode 411 ' of one pixel region 480.In a pixel region 480, equivalent common electrode 411 ' etc.
Effect is resistance 411A ', resistance 411B ' and resistance 411C '.Wherein, after resistance 411A ' and resistance 411B ' is in parallel with resistance
411C ' connects.Each resistance can be calculated according to formula R=ρ L/S, wherein R indicates the resistance value to be calculated, ρ tables
Show that the resistivity of common electrode, L indicate that resistance length, S indicate the sectional area of resistance.In the coating of common electrode, it can wait
Effect thinks, common electrode thickness d having the same.The sectional area S=Wd, W of resistance are the width of resistance as a result,.Resistance calculations
Formula is correspondingly：R=ρ L/ (Wd).
The resistance value of resistance 411A ' is calculated first：
The length of resistance 411A ' is identical as 12.1 microns of the length of equivalent open 413 '.The width of resistance 411A ' such as Figure 10
2 microns (d2) are shown, then the resistance value R of resistance 411A '1=ρ 12.1/ (2d)=ρ 6.05/d.
Then the resistance value of resistance 411B ' is calculated：
The length of resistance 411B ' is identical as 12.1 microns of the length of equivalent open 413 '.The width of resistance 411B ' such as Figure 10
2 microns (d1) are shown, then the resistance value R of resistance 411B '2=ρ 12.1/ (2d)=ρ 6.05/d.
Finally calculate the resistance value of resistance 411C '：
The length of resistance 411C ' with it is micro- with the length 12.1 of equivalent open 413 ' for 57.3 microns of the length of pixel region 480
The difference of rice, that is, 45.2 microns.The width of resistance 411C ' is that 19.1 microns of the width of pixel region 480 is micro- with the width 3 of slit
The difference of rice (1.5 microns of the half that 413 ' Zuo You two slits of equivalent open are shown in figure), that is, 16.1 microns.Then resistance
The resistance value R of 411C '3=ρ 45.2/ (16.1d) ≈ ρ 2.807/d.
The resistance of equivalent common electrode 411 ' is as unit of a pixel region 480：
R1R2/(R1+R2)+R3≈ ρ 3.025/d+ ρ 2.807/d=ρ 5.832/d.
Next, referring to Figure 11 and Figure 12, Figure 11 show first embodiment of the invention multiple common electrodes 511 (with
211 shape of common electrode shown in Fig. 3 is identical).Slit 512 is connected with (connecting the first contact hole) opening 513.Shown in Figure 11
Common electrode 511 size it is similar with common electrode 411 shown in Fig. 9, and each common electrode 511 is covered in the X direction
Two pixel regions 580 of lid.In the common electrode 511 shown in Figure 11, the critical size of common electrode 511 becomes d3, crucial ruler
Very little d3 is equivalent to the sum of critical size d1 in Fig. 9, critical size d2 and slit width.In some change case, d3, which is more than, to close
Key size d1 and critical size d2.In these embodiments, critical size d3 compares critical size d1, critical size d2,
The difficulty of 511 making technology of common electrode is reduced as a result,.
According to common electrode 511 shown in Figure 11, as unit of a pixel region 580, provide as shown in figure 12 based on
Calculate the equivalent resistance figure of the common electrode 511 ' of a pixel region 580.In a pixel region 580, equivalent common electrode 511 '
It is equivalent to resistance 511A ' and resistance 511B '.Wherein, resistance 511A ' and resistance 511B ' series connection.Similarly, each resistance can
To be calculated according to formula R=ρ L/ (Wd).
The resistance value of resistance 511A ' is calculated first：
The length of resistance 511A ' is identical as 12.1 microns of the length of equivalent open 513 '.The width of resistance 511A ' such as Figure 12
7 microns (i.e. d3, that is, the sum of d1, d2 and slit width) are shown, then the resistance value R of resistance 511A '1'=ρ 12.1/
(7d)≈ρ1.7285/d。
Then the resistance value of resistance 511B ' is calculated：
The length of resistance 511B ' with it is micro- with the length 12.1 of equivalent open 513 ' for 57.3 microns of the length of pixel region 580
The difference of rice, that is, 45.2 microns.The width of resistance 511B ' is that 19.1 microns of the width of pixel region 580 is micro- with the width 3 of slit
The difference of rice, that is, 16.1 microns.The then resistance value R of resistance 511B '2'=ρ 45.2/ (16.1d) ≈ ρ 2.807/d.
The resistance of equivalent common electrode 511 ' is as unit of a pixel region 580：
R1’+R2' ≈ ρ 1.7285/d+ ρ 2.807/d=ρ 4.5355/d.
According to above-mentioned result of calculation：
The resistance of equivalent common electrode 411 ' is ρ 5.832/d as unit of a pixel region 480 in the prior art.This hair
The resistance of bright first embodiment equivalent common electrode 511 ' as unit of a pixel region 580 is ρ 4.5355/d.After this manner, etc.
The resistance for imitating common electrode 511 ' reduces 20% compared to the resistance of equivalent common electrode 411 '.
It will be understood by those skilled in the art that the specific size that Fig. 9 to Figure 12 is given only schematically calculates resistance value,
The present invention common electrode, pixel region, slit size be not limited to this, these sizes can become with different embodiments
Change.
Compared with prior art, slit of the present invention by being formed between adjacent common electrode and connecing on slit
Contact hole connects, and to improve the touch control detection ability and display effect of touch-control display panel, and has following advantage：
1) critical size of common electrode is increased, the difficulty of common electrode pattern making technology is reduced；
2) reduce the resistance of common electrode, and then reduce the signal delay in common electrode.
It is particularly shown and described exemplary embodiments of the present invention above.It should be understood that the present invention is not limited to institute
Disclosed embodiment, on the contrary, it is intended to cover comprising within the scope of the appended claims various modifications and equivalent set
It changes.
Claims (9)
1. a kind of touch-control display panel, which is characterized in that including：
Substrate；
Thin film transistor (TFT) is arranged on the substrate；
Pixel electrode layer is arranged on the thin film transistor (TFT), and the pixel electrode layer passes through described in the connection of the first contact hole
The drain electrode of thin film transistor (TFT) or source electrode；
Common electrode layer is arranged on the substrate, is located under the pixel electrode layer, the common electrode layer is divided into
Multiple common electrodes, form slit between the adjacent common electrode, and the common electrode further includes supplying first contact hole
The opening passed through, the slit and the open communication, the common electrode are multiplexed with self-capacitance touch control electrode.
2. touch-control display panel as described in claim 1, which is characterized in that the slit and opening positioned at the slit both sides
Mouth connection.
3. touch-control display panel as described in claim 1, which is characterized in that the pixel electrode layer and the common electrode layer
Between an insulating layer is set.
4. touch-control display panel as described in claim 1, which is characterized in that the thin film transistor (TFT) is the film of top gate structure
Transistor.
5. touch-control display panel as described in claim 1, which is characterized in that extend in X direction, along Y-direction row including a plurality of
The grid line of row and a plurality of data line for extending along the Y-direction, being arranged along the X-direction, the X-direction and the Y-direction
It is orthogonal.
6. touch-control display panel as claimed in claim 5, which is characterized in that multiple common electrodes are prolonged along the Y-direction
It stretches.
7. touch-control display panel as claimed in claim 6, which is characterized in that the common electrode layer is located at the data line institute
Metal layer on, the slit that is formed between the adjacent common electrode exposes at least partly described data line.
8. touch-control display panel as claimed in claim 7, which is characterized in that the common electrode is covered in the X-direction
With the data line of first contact hole corresponding position.
9. touch-control display panel as claimed in claim 7, which is characterized in that the slit between the adjacent common electrode
The data line is completely exposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329988.4A CN108710446B (en) | 2016-01-29 | 2016-01-29 | Touch control display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329988.4A CN108710446B (en) | 2016-01-29 | 2016-01-29 | Touch control display panel |
| CN201610065731.3A CN105511707B (en) | 2016-01-29 | 2016-01-29 | Touch-control display panel |
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| CN201610065731.3A Division CN105511707B (en) | 2016-01-29 | 2016-01-29 | Touch-control display panel |
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| CN108710446A true CN108710446A (en) | 2018-10-26 |
| CN108710446B CN108710446B (en) | 2021-05-14 |
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| CN201610065731.3A Active CN105511707B (en) | 2016-01-29 | 2016-01-29 | Touch-control display panel |
| CN201810329945.6A Active CN108363516B (en) | 2016-01-29 | 2016-01-29 | Touch control display panel |
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| CN201810329938.6A Active CN108646953B (en) | 2016-01-29 | 2016-01-29 | Touch control display panel |
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| CN108646953A (en) * | 2016-01-29 | 2018-10-12 | 上海中航光电子有限公司 | Touch-control display panel |
| CN109521613A (en) * | 2018-12-24 | 2019-03-26 | 上海天马微电子有限公司 | Array substrate, manufacturing method thereof, display panel and display device |
| CN110619859A (en) * | 2019-10-30 | 2019-12-27 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof and display device |
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| KR102485387B1 (en) * | 2016-01-20 | 2023-01-06 | 삼성디스플레이 주식회사 | Display device |
| CN107085481B (en) * | 2017-04-21 | 2020-06-05 | 厦门天马微电子有限公司 | Array substrate, touch display panel and display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108646953B (en) | 2021-05-25 |
| CN108646953A (en) | 2018-10-12 |
| CN105511707B (en) | 2018-06-22 |
| CN105511707A (en) | 2016-04-20 |
| CN108363516B (en) | 2021-04-02 |
| CN108363516A (en) | 2018-08-03 |
| CN108710446B (en) | 2021-05-14 |
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