CN106155448A - Touch-control display panel and device - Google Patents
Touch-control display panel and device Download PDFInfo
- Publication number
- CN106155448A CN106155448A CN201610617442.XA CN201610617442A CN106155448A CN 106155448 A CN106155448 A CN 106155448A CN 201610617442 A CN201610617442 A CN 201610617442A CN 106155448 A CN106155448 A CN 106155448A
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- Prior art keywords
- touch
- control electrode
- touch control
- display panel
- substrate
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Classifications
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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
-
- 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
- G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
Abstract
This application discloses a kind of display floater and display device, including: first substrate and the second substrate being oppositely arranged with described first substrate, wherein, first substrate includes the first touch control electrode layer, first touch control electrode layer includes multiple first touch control electrode insulated from each other, first touch control electrode includes the multiple metal grills being made up of a plurality of metal wire sections, and wherein, any one metal wire sections not contacted with the edge of the first touch control electrode is all shared by two metal grills；Second substrate includes that the second touch control electrode layer, the second touch control electrode layer include the second touch control electrode of multiple strip being oppositely arranged with the first touch control electrode, and any second touch control electrode partly overlaps with each first touch control electrode to the orthographic projection of the first touch control electrode layer.By arranging the material of the first touch control electrode, shape, the impedance of the first touch control electrode can be reduced, improve signal transmission signal to noise ratio, thus improve the sensitivity of contact panel.
Description
Technical field
The present invention relates generally to Display Technique field, particularly relate to a kind of touch-control display panel and device.
Background technology
Along with the lifting of Display Technique, display floater gradually to lightening trend development, has the display surface of touch controllable function
Plate is the most universal.In order to reduce the thickness of display floater, the touch controllable function of display floater can be realized, generally by touch-control simultaneously
Structure assembly is in display floater.Capacitance type touch-control structure can be divided into self-tolerant capacitance structure and mutual capacitance type capacitance structure,
In LCDs, for self-tolerant touch-control structure, electrode can be made on the substrate of side, when display floater is touched,
Electric capacity is formed between display floater and ground；For mutual capacitance type touch-control structure, the substrate that both sides are relative makes electrode, exists simultaneously
Electric capacity is formed between relative electrode.
Refer to the top view that Fig. 1, Fig. 1 are the touch-control display panel in prior art with mutual capacitance type structure.Existing
In technology, the most respectively away from side near liquid crystal layer on the side of liquid crystal layer and array base palte 11 on color membrane substrates 10
Make transparent indium tin oxide semi-conducting material (ITO, Indium tin oxide) respectively as the sensing in touch control electrode
Electrode 101 and drive electrode 111, filling dielectric is to form electric capacity between electrodes, simultaneously need to pass through flexible circuit
Each sensing electrode 101 and drive electrode 111 are respectively connecting in control circuit by plate 13, and wherein liquid crystal layer is positioned at color membrane substrates 10
And between array base palte 11.
But, the touch control electrode that existing employing ITO material makes, owing to ITO material impedance is relatively big, carrying out signal biography
During defeated, improve the loss ratio of signal, reduce the effective transmission rate of signal, thus reduce display floater touch-control
The sensitivity of display.
Technical scheme content
In view of drawbacks described above of the prior art or deficiency, it is desirable to provide a kind of touch-control display panel and device, to solving
Certainly technical problem present in prior art.
First aspect, the embodiment of the present application provides a kind of touch-control display panel, including first substrate and and first substrate
The second substrate being oppositely arranged, wherein, first substrate include the first touch control electrode layer, the first touch control electrode layer include multiple each other
First touch control electrode of insulation, the first touch control electrode extends in a first direction, and arranges the most successively, the first touch-control
Electrode includes the multiple metal grills being made up of a plurality of metal wire sections, wherein, does not contacts with the edge of the first touch control electrode
Any one metal wire sections is all shared by two metal grills；Second substrate includes the second touch control electrode layer, the second touch control electrode layer
Including the second touch control electrode of multiple strips being oppositely arranged with the first touch control electrode, the second touch control electrode is prolonged in a second direction
Stretching, and arrange the most successively, any second touch control electrode is touched with each first to the orthographic projection of the first touch control electrode layer
Control electrode partly overlaps.
In some optional implementations of the present embodiment, above-mentioned metal grill be shaped as polygon.When polygon is
During regular hexagon, any one summit in metal grill is shared by three regular hexagons, when polygon is equilateral triangle,
Any one summit in metal grill is shared by six equilateral triangles.
According to the scheme of the embodiment of the present application, by using metal grill to form the first touch control electrode in first substrate side,
Reduce the impedance of the first touch control electrode, reduce further the first touch control electrode at the signal of diverse location and transmit difference, from
And improve transmission signal to noise ratio.
Additionally, in certain embodiments, by arranging the shape of metal grill so that same electrode can increase a plurality of biography
Lines, while improving the sensitivity that touch-control circuit signal receives, can reduce the open circuit of electrode somewhere and cause the signal cannot
The problem of transmission,
Accompanying drawing explanation
By the detailed description that non-limiting example is made made with reference to the following drawings of reading, other of the application
Feature, purpose and advantage will become more apparent upon:
Fig. 1 shows the schematic structure top view of existing touch-control display panel；
Fig. 2 shows the schematic structure top view of the touch-control display panel of the application；
Fig. 3 a and Fig. 3 b respectively illustrates in the touch-control display panel of the application, the first touch control electrode and the second touch control electrode
The generalized section of relative position relation；
Fig. 4 shows in the touch-control display panel of the application, the relative position of the first touch control electrode and the second touch control electrode
Relation floor map；
Fig. 5 a～Fig. 5 c shows in the touch-control display panel of the application, and the metal grill in the first touch control electrode is constituted
The schematic diagram of different metal grill patterns；
Fig. 6 shows the work in the touch-control display panel of the application, between the first touch control electrode and the second touch control electrode
The schematic diagram of mode；
Fig. 7 shows the touch control display apparatus schematic diagram of the application.
Detailed description of the invention
With embodiment, the application is described in further detail below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that, in order to
It is easy to describe, accompanying drawing illustrate only the part relevant to the application.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Refer to the top view of the exemplary touch-control display panel showing the application of Fig. 2, Fig. 2.The touch-control of the application
Display floater includes first substrate 20, the first touch control electrode 201 being positioned on first substrate 20, and second substrate 21 is positioned at second
The second touch control electrode 211 on substrate 21, flexible PCB 23, connect the of the first touch control electrode 201 and flexible PCB 23
One touching signals line L1, driving chip 24, connect the second touching signals line L2 of the second electrode 211 and driving chip 24, upper
Stating and be provided with liquid crystal layer between first substrate 20 and second substrate 21, liquid crystal layer includes multiple liquid crystal.
In the present embodiment, first substrate 20 is color membrane substrates, and second substrate 21 is the battle array being oppositely arranged with color membrane substrates
Row substrate, the first touch control electrode 201 is touch detection electrodes, and above-mentioned second touch control electrode 211 is touch-control drive electrode.
First substrate 20 can be glass substrate, it is also possible to have, for other, the substrate that transmitance material makes, such as
Plastic base, quartz base plate etc., as long as reaching technique and use requires.Above-mentioned first substrate 20 makes and has first
Touch control electrode layer, is distributed multiple first touch control electrode 201 on the first touch control electrode layer, and each first touch control electrode 201 can
To be arranged in the first substrate 20 side near liquid crystal layer, it is also possible to be arranged in the side away from liquid crystal layer, such as Fig. 3 a and 3b institute
Showing, in the touch-control display panel during what Fig. 3 a and Fig. 3 b was the most exemplary show such as Fig. 2, the first touch control electrode 201 and second is touched
The generalized section of the relative position of control electrode 211, reference 30 is each liquid crystal in liquid crystal layer.Each the first touch-control electricity
Pole 201 X in the first direction extends, and Y arranges successively in a second direction, illustrates during first direction X is Fig. 2 in the present embodiment
Horizontal direction, second direction Y be in Fig. 2 diagram vertical direction.In other embodiments, first direction X can also be Fig. 2
The vertical direction of middle diagram, second direction Y can also be the horizontal direction of diagram in Fig. 2.Phase between each first touch control electrode 201
Insulation mutually.Each first touch control electrode 201 is made up of the metal grill linked together respectively, and each metal grill comprises a plurality of
Metal wire sections, such as, each metal grill can comprise 3 metal line sections, it is also possible to comprises 4 metal line sections, 5 metal line
Section etc..The material of above-mentioned metal grill can be the metal material such as copper, silver, it is also possible to for metal-oxide.Above-mentioned it is connected to one
The metal grill risen forms metal grill pattern.Any one metal wire sections not contacted with the edge of the first touch control electrode 201
All can be shared by two metal grills.
In the present embodiment, the pattern that above-mentioned metal grill is formed can be formed by the graphic joining of same shape, it is possible to
To be formed by difform graphic joining.Such as, above-mentioned grid pattern can be spliced by multiple trianglees and multiple tetragon
Form, it is also possible to the pattern being all spliced by tetragon or triangle.
The touch-control display panel of the application includes second substrate 21.Second substrate 21 can be glass substrate, it is also possible to for
Other have the substrate that transmitance material makes, such as plastic base, quartz base plate etc..Above-mentioned second substrate 21 makes
There is the second touch control electrode layer, multiple second touch control electrode 211, each second touch control electrode on the second touch control electrode layer, are distributed
211 are arranged in the second substrate 21 side near liquid crystal layer, as shown in Figure 3 a and Figure 3 b shows.Each second touch control electrode 211 is along
Two direction Y extend, and X arranges successively in the first direction.Mutually insulated between each second touch control electrode 211, each second touch-control
Electrode 211 be shaped as strip.In the present embodiment, the material of above-mentioned each second touch control electrode 211 is ITO, other one
In a little embodiments, the material of the second touch control electrode 211 can be the conductive material that other are transparent.In fig. 2, any second touch-control
Electrode 211 is overlapping with above-mentioned each first touch control electrode 201 at least part to the orthographic projection of above-mentioned first touch control electrode layer.Fig. 4
Floor map for the first touch control electrode 201 in Fig. 2 with the second relative position of touch control electrode 211.Wherein, the first touch control electrode
201 and second touch control electrode 211 can staggered in array format, first touch control electrode 201 can be with multiple
Two touch control electrode 211 have overlapping region 25.
In some optional implementations of the present embodiment, the shape of above-mentioned metal grill can be polygon, with upper
State above-mentioned each metal line section that the edge of the first touch control electrode 201 do not contacts and be respectively provided with equal length, the most above-mentioned metal
Grid can be the polygon with the equal length of side.Can be such as square, regular pentagon, regular hexagon, octagon
Etc..
Refer to table one, table one shows the difform of the same metal material making of equal length, same widths
The resistance value of the first touch control electrode 201 that metal grill is formed, what Fig. 5 a～5c was exemplary shows each shape in table one
The metal grill pattern constituted, each of which metal grill pattern is first touch control electrode 201, shown in Fig. 5 a～Fig. 5 c
The width of metal grill X in the first direction, the in a second direction width of Y and the thickness of each metal grill the most identical.
The resistance value of the difform metal grill of table one
| Metal grill shape | Regular hexagon | Equilateral triangle | Rhombus |
| Resistance value | 1.73271 | 0.98954 | 1.96017 |
By table one it can be seen that the metal grill being made up of multiple regular hexagons as shown in Figure 5 a is as each first touch-control
During electrode 201, the resistance value of each first touch control electrode 201 is minimum；The metal being made up of multiple equilateral triangles as shown in Figure 5 b
When grid is as each first touch control electrode 201, the resistance of each first touch control electrode 201 is taken second place；By multiple Pedicellus et Pericarpium Trapaes as shown in Figure 5 c
When the metal grill of shape composition is as each first touch control electrode 201, the resistance value of each first touch control electrode 201 is maximum.Therefore, excellent
First select the metal grill being made up of regular hexagon or equilateral triangle as the first touch control electrode 201.
When the metal grill selecting regular hexagon to form is as the first touch control electrode 201, appointing in above-mentioned metal grill
A summit of anticipating can be shared by three regular hexagons；When selecting the metal grill of equilateral triangle composition as the first touch-control electricity
During pole 201, any one summit in above-mentioned metal grill is shared by six equilateral triangles.
Not there is light transmission due to metal material, in order to make the first touch control electrode 201 have a higher light transmittance, need by
The area that the metal grill that equal length, the same metal material of same widths make is covered is maximum.Therefore, most preferably,
Use the metal grill being made up of regular hexagon as each first touch control electrode 201.
By using metal grill as the first touch control electrode, the impedance of the first touch control electrode can be reduced, improve first
The sensitivity of touch control electrode, improves the signal of touch-control display panel output and the ratio of noise；Meanwhile, by using regular hexagon
The metal grill of composition is as each first touch control electrode, while reducing the impedance of the first touch control electrode, adds first and touches
The light transmittance of control electrode.
In fig. 2, between above-mentioned first touch control electrode 201 and the second touch control electrode 211, it is filled with dielectric, to be formed
Touch control detection electric capacity, above-mentioned dielectric can be glass, air etc., it is also possible to make to be formed between two electrodes electric capacity for other
Insulation dielectric.First substrate 20 is provided with the first touching signals line L1, the first touching signals line L1 for by each
First touch control electrode 201 is connected to flexible PCB 23.Flexible PCB 23 is with flexible insulant such as polyimides
Or the printed circuit board (PCB) that mylar is made.Above-mentioned flexible PCB 23 for being connected to inspection by above-mentioned first touch control electrode 201
Slowdown monitoring circuit, during wherein testing circuit can be built in driving chip 24.This testing circuit is for by receiving the first touch control electrode
The touch area of the detection signal detection touch-control display panel of 201 transmission.Each second substrate 21 is provided with the second touch-control letter
Number line L2, the second touching signals line L2 are for being connected to driving chip 24, at the present embodiment by each second touch control electrode 211
In, driving chip 24 is arranged on second substrate 21.Above-mentioned driving chip 24 can be periodically by the second touching signals line L2
To each second touch control electrode 211 above-mentioned provide touch-control drive signal, above-mentioned testing circuit pass through the first touching signals line L1
Receive the signal that the first touch control electrode 201 returns.
What Fig. 6 was exemplary shows when finger touching touch-control display panel, and above-mentioned first touch-control electricity 201 poles are touched with second
Working method between control electrode 211.In figure 6, formed between above-mentioned first touch control electrode 201 and the second touch control electrode 211
Electric capacity C1, when touch-control display panel is touched without finger, the letter from the first touch control electrode 201 that above-mentioned testing circuit receives
Number it is identical touch-control sensing signal F2.Touch between above-mentioned first touch control electrode 201 and the second touch control electrode 211 with finger
The situation of cross one another position is as example, and when finger touching touch-control display panel, finger touches with the first of display floater
Electric capacity C2 is produced between control electrode 201, when driving chip 24 provides touch-control to drive signal F1 to the second touch control electrode 211, can
To get touch-control sensing signal F3 at the first touch control electrode 201 of finger touching display floater, this touch-control sensing signal phase
Impulse level value than the touch-control sensing signal F2 in other the first touch control electrode 201 is relatively low, and this touch-control sensing signal F3 passes through
First touching signals line L1 transmits to testing circuit.Testing circuit provides to the second touch control electrode 211 based on driving chip 24
Periodically pulsing signal and the touch-control sensing signal of each first touch control electrode 201 received, detection is in X-Y plane
Touch area information.
In the present embodiment, touch-control display panel as shown in Figure 2 also include multiple grid, controlling grid scan line, with grid
The a plurality of data signal line that pole scan line is arranged in array, source electrode, drain electrode, the pixel electrode being connected with source electrode, drain electrode, Yi Jishe
The concrete overlapped way putting the insulating barrier between above-mentioned multilayer metallic electrode, above-mentioned metal electrode and insulating barrier belongs to existing skill
Art, does not repeats them here.It is noted that on second substrate 21, the bearing of trend of above-mentioned second touch control electrode 211 is with upper
The bearing of trend stating data signal line is consistent and parallel with data signal line.
Above-mentioned second touch control electrode 211 can be multiplexed with public electrode.Above-mentioned second touch control electrode 211 is at touch-control display surface
The when that plate performing image display function, the second touch control electrode 211 acts on, in control jointly with pixel electrode (not being given in figure)
State the deflection of liquid crystal in liquid crystal layer, control the display of image；Additionally, when touch-control display panel performs touch controllable function, first
Touch control electrode 211 receives or feeds back touch-control and drives signal, performs touch controllable function.
Fig. 8 is a kind of touch control display apparatus that the present embodiment proposes, and display device can be organic field luminescence display dress
The all of flat panel type such as the self-luminous display device put etc. or the electronic paper-type display device with electrophoresis element etc.
Display device.It addition, the display device of belt sensor of the present embodiment can be used for such as smart phone, flat board eventually
The various devices such as end, mobile telephone, the personal computer of notebook type, game station.Concrete, this touch-control display dress
Put the touch-control display panel including mentioning in aforementioned any embodiment.
It will be appreciated by those skilled in the art that technical scheme scope involved in the application, however it is not limited to above-mentioned technology
The technical scheme of the particular combination of feature, also should contain in the case of conceiving without departing from described technical scheme simultaneously, by
Other technical scheme that above-mentioned technical characteristic or its equivalent feature carry out combination in any and formed.Such as features described above and the application
Disclosed in (but not limited to) there is the technical characteristic of similar functions replace mutually and the technical scheme that formed.
Claims (10)
1. a touch-control display panel, it is characterised in that include first substrate and with described first substrate be oppositely arranged second
Substrate, wherein,
Described first substrate includes that the first touch control electrode layer, described first touch control electrode layer include that multiple insulated from each other first touches
Control electrode, described first touch control electrode extends in a first direction, and arranges the most successively, described first touch control electrode
Including the multiple metal grills being made up of a plurality of metal wire sections, wherein, the edge with described first touch control electrode does not contacts
Any one metal wire sections is all shared by two metal grills；
Described second substrate includes that the second touch control electrode layer, described second touch control electrode layer include multiple and described first touch-control electricity
Second touch control electrode of the strip that pole is oppositely arranged, described second touch control electrode extends along described second direction, and along described
First direction is arranged successively, and the most described second touch control electrode is to the orthographic projection of described first touch control electrode layer and each described first
Touch control electrode partly overlaps.
Touch-control display panel the most according to claim 1, it is characterised in that with the edge not phase of described first touch control electrode
The described metal wire sections of contact has equal length.
Touch-control display panel the most according to claim 2, it is characterised in that described metal grill be shaped as polygon.
Touch-control display panel the most according to claim 3, it is characterised in that when described polygon is regular hexagon, described
Any one summit in metal grill is shared by three described regular hexagons.
Touch-control display panel the most according to claim 3, it is characterised in that when described polygon is equilateral triangle, described
Any one summit in metal grill is shared by six described equilateral triangles.
Touch-control display panel the most according to claim 1, it is characterised in that described second touch control electrode is by translucent material
Make, and and described first touch control electrode between be filled with dielectric to form electric capacity.
Touch-control display panel the most according to claim 6, it is characterised in that described second substrate also includes being arranged in array
Scan signal line and data signal line, the bearing of trend of described second touch control electrode and the bearing of trend of described data signal line
Unanimously, and parallel with described data signal line.
Touch-control display panel the most according to claim 7, it is characterised in that described touch-control display panel also includes driving core
Sheet, in the touch-control stage, described driving chip drives signal for sending touch-control to described second touch control electrode, and receives described the
The touch-control sensing signal that one touch control electrode sends.
Touch-control display panel the most according to claim 8, it is characterised in that in display stage, described second touch control electrode
It is multiplexed with public electrode.
10. a display device, it is characterised in that described display device includes that the touch-control as described in one of claim 1-19 shows
Show panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617442.XA CN106155448B (en) | 2016-07-29 | 2016-07-29 | Touch-control display panel and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610617442.XA CN106155448B (en) | 2016-07-29 | 2016-07-29 | Touch-control display panel and device |
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| Publication Number | Publication Date |
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| CN106155448A true CN106155448A (en) | 2016-11-23 |
| CN106155448B CN106155448B (en) | 2019-07-26 |
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| CN201610617442.XA Active CN106155448B (en) | 2016-07-29 | 2016-07-29 | Touch-control display panel and device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106681561A (en) * | 2017-01-03 | 2017-05-17 | 京东方科技集团股份有限公司 | Touch panel, manufacturing method thereof and touch display device |
| CN106775099A (en) * | 2016-12-28 | 2017-05-31 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN107092394A (en) * | 2017-04-26 | 2017-08-25 | 京东方科技集团股份有限公司 | Touch base plate and preparation method thereof, touch-screen |
| CN108845694A (en) * | 2018-06-06 | 2018-11-20 | 业成科技（成都）有限公司 | Metal grill touch module |
| CN111373356A (en) * | 2018-10-26 | 2020-07-03 | 京东方科技集团股份有限公司 | Touch substrate, touch display device and method for manufacturing touch substrate |
| WO2023272713A1 (en) * | 2021-07-02 | 2023-01-05 | 京东方科技集团股份有限公司 | Touch substrate and touch display panel |
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| CN106775099A (en) * | 2016-12-28 | 2017-05-31 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
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| CN111373356A (en) * | 2018-10-26 | 2020-07-03 | 京东方科技集团股份有限公司 | Touch substrate, touch display device and method for manufacturing touch substrate |
| CN111373356B (en) * | 2018-10-26 | 2024-01-23 | 京东方科技集团股份有限公司 | Touch substrate, touch display device and method for manufacturing touch substrate |
| WO2023272713A1 (en) * | 2021-07-02 | 2023-01-05 | 京东方科技集团股份有限公司 | Touch substrate and touch display panel |
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| Publication number | Publication date |
|---|---|
| CN106155448B (en) | 2019-07-26 |
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