CN106155448B - Touch-control display panel and device - Google Patents
Touch-control display panel and device Download PDFInfo
- Publication number
- CN106155448B CN106155448B CN201610617442.XA CN201610617442A CN106155448B CN 106155448 B CN106155448 B CN 106155448B CN 201610617442 A CN201610617442 A CN 201610617442A CN 106155448 B CN106155448 B CN 106155448B
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- Prior art keywords
- touch
- control electrode
- touch control
- substrate
- display panel
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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 panel and display devices, the second substrate for including: first substrate and being oppositely arranged with the first substrate, wherein, first substrate includes the first touch control electrode layer, first touch control electrode layer includes multiple first touch control electrodes insulated from each other, first touch control electrode includes the multiple metal grills being made of a plurality of metal wire sections, wherein is shared by two metal grills with any one metal wire sections that the edge of the first touch control electrode is not in contact；The second substrate includes second touch control electrode layer, and second touch control electrode layer includes the second touch control electrode of multiple strips being oppositely arranged with the first touch control electrode, and orthographic projection of any second touch control electrode to the first touch control electrode layer is partly overlapped with each first touch control electrode.By the way that the material and shape of the first touch control electrode are arranged, the impedance of the first touch control electrode can be reduced, signal is improved and transmits signal-to-noise ratio, to improve the sensitivity of touch panel.
Description
Technical field
The present invention relates generally to field of display technology more particularly to a kind of touch-control display panels and device.
Background technique
With the promotion of display technology, display panel is gradually to lightening trend development, the display surface with touch function
Plate is very universal.In order to reduce the thickness of display panel, while the touch function of display panel may be implemented, usually by touch-control
Structure is integrated in display panel.Capacitance type touch-control structure can be divided into self-tolerant capacitance structure and mutual capacitance type capacitance structure,
In liquid crystal display, for self-tolerant touch-control structure, electrode can be made on the substrate of side, when being touched to display panel,
Capacitor is formed between display panel and ground；For mutual capacitance type touch-control structure, electrode is made on the opposite substrate in two sides, while
Capacitor is formed between opposite electrode.
Referring to FIG. 1, Fig. 1 is the top view of the touch-control display panel with mutual capacitance type structure in the prior art.Existing
In technology, usually respectively on color membrane substrates 10 far from liquid crystal layer side and array substrate 11 on close to liquid crystal layer side
Transparent indium tin oxide semiconductor material (ITO, Indium tin oxide) is made respectively as the sensing in touch control electrode
Electrode 101 and driving electrodes 111 fill dielectric between electrodes to form capacitor, while needing to pass through flexible circuit
Each sensing electrode 101 and driving electrodes 111 are respectively connected in control circuit by plate 13, and wherein liquid crystal layer is located at color membrane substrates 10
Between array substrate 11.
However, the existing touch control electrode made of ITO material is carrying out signal biography since ITO material impedance is larger
In defeated process, the loss ratio of signal is improved, reduces the effective transmission rate of signal, to reduce display panel touch-control
The sensitivity of display.
Technical solution content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of touch-control display panel and device, to solve
Certainly the technical problems existing in the prior art.
In a 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 it is multiple each other
First touch control electrode of insulation, the first touch control electrode extends in a first direction, and successively arranges in a second direction, the first touch-control
Electrode includes the multiple metal grills being made of a plurality of metal wire sections, wherein is not in contact with the edge of the first touch control electrode
Any one metal wire sections are shared by two metal grills；The second substrate includes second touch control electrode layer, second touch control electrode layer
Second touch control electrode including multiple strips being oppositely arranged with the first touch control electrode, second touch control electrode are prolonged in a second direction
It stretches, and successively arranges along first direction, orthographic projection and each first touching of any second touch control electrode to the first touch control electrode layer
Overlap to control electrode section.
In some optional implementations of the present embodiment, the shape of above-mentioned metal grill is polygon.When polygon is
When regular hexagon, any one vertex in metal grill is shared by three regular hexagons, when polygon is equilateral triangle,
Any one vertex in metal grill is shared by six equilateral triangles.
According to the scheme of the embodiment of the present application, by forming the first touch control electrode using metal grill in first substrate side,
The impedance for reducing the first touch control electrode, the signal that further reduced the first touch control electrode in different location transmit difference, from
And improve transmission signal-to-noise ratio.
In addition, in some embodiments, by the way that the shape of metal grill is arranged, same electrode is allowed to increase a plurality of biography
Defeated route, while the received sensitivity of raising touch-control circuit signal, can reduce the open circuit of electrode somewhere causes signal can not
The problem of transmission,
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages 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 views of the touch-control display panel of the application；
Fig. 3 a and Fig. 3 b are respectively illustrated in the touch-control display panel of the application, the first touch control electrode and second touch control electrode
Relative positional relationship diagrammatic cross-section；
Fig. 4 is shown in the touch-control display panel of the application, the relative position of the first touch control electrode and second touch control electrode
Relationship floor map；
Fig. 5 a~Fig. 5 c is shown in the touch-control display panel of the application, what the metal grill in the first touch control electrode was constituted
The schematic diagram of different metal grill patterns；
Fig. 6 is shown in the touch-control display panel of the application, the work between the first touch control electrode and second touch control electrode
The schematic diagram of mode；
Fig. 7 shows the touch control display apparatus schematic diagram of the application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.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
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to FIG. 2, Fig. 2 illustratively shows the top view of the touch-control display panel of the application.The touch-control of the application
Display panel includes first substrate 20, the first touch control electrode 201 on first substrate 20, the second substrate 21, is located at second
Second touch control electrode 211 on substrate 21, flexible circuit board 23, the of the first touch control electrode 201 of connection and flexible circuit board 23
One touching signals line L1, driving chip 24 connect the second touching signals line L2 of second electrode 211 and driving chip 24, upper
It states and is provided with liquid crystal layer between first substrate 20 and the second substrate 21, include multiple liquid crystal in liquid crystal layer.
In the present embodiment, first substrate 20 is color membrane substrates, and the second substrate 21 is the battle array being oppositely arranged with color membrane substrates
Column substrate, the first touch control electrode 201 are touch detection electrodes, and above-mentioned second touch control electrode 211 is touch-driven electrode.
First substrate 20 can be glass substrate, or other substrates with the production of transmitance material, such as
Plastic base, quartz base plate etc., as long as reaching technique and requirement.Production has first on above-mentioned first substrate 20
Multiple first touch control electrodes 201 are distributed in touch control electrode layer on the first touch control electrode layer, and each first touch control electrode 201 can
To be arranged in first substrate 20 close to the side of liquid crystal layer, it can also be arranged in the side far from liquid crystal layer, such as Fig. 3 a and 3b institute
Show, Fig. 3 a and Fig. 3 b are illustratively shown respectively such as the first touch control electrode 201 and the second touching in the touch-control display panel in Fig. 2
The diagrammatic cross-section of the relative position of electrode 211 is controlled, appended drawing reference 30 is each liquid crystal in liquid crystal layer.Each first touch-control electricity
Pole 201 extends along first direction X, and Y successively arranges in a second direction, and first direction X is to illustrate in Fig. 2 in the present embodiment
Horizontal direction, second direction Y is the vertical direction that illustrates in Fig. 2.In other embodiments, first direction X may be Fig. 2
The vertical direction of middle diagram, second direction Y may be the horizontal direction illustrated in Fig. 2.Phase between each first touch control electrode 201
Mutually insulation.Each first touch control electrode 201 is made of the metal grill to link together respectively, and each metal grill includes a plurality of
Metal wire sections also may include 4 metal line sections, 5 metal lines for example, each metal grill may include 3 metal line sections
Section etc..The material of above-mentioned metal grill can be the metal materials such as copper, silver, or metal oxide.It is above-mentioned to be connected to one
The metal grill risen forms metal grill pattern.Any one metal wire sections not being in contact with the edge of the first touch control electrode 201
It 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, can also
To be formed by graphic joining of different shapes.For example, above-mentioned grid pattern can be spliced by multiple triangles and multiple quadrangles
It forms, the pattern that can also be all spliced by quadrangle or triangle.
The touch-control display panel of the application includes the second substrate 21.The second substrate 21 can be glass substrate, or
Other substrates, such as plastic base, quartz base plate etc. with the production of transmitance material.It is made in above-mentioned the second substrate 21
There is second touch control electrode layer, multiple second touch control electrodes 211, each second touch control electrode are distributed on second touch control electrode layer
211 are arranged in the second substrate 21 close to the side of liquid crystal layer, as shown in Figure 3a and Figure 3b shows.Each second touch control electrode 211 is along
Two direction Y extend, and successively arrange along first direction X.Mutually insulated between each second touch control electrode 211, each second touch-control
The shape of electrode 211 is strip.In the present embodiment, the material of above-mentioned each second touch control electrode 211 be ITO, other one
In a little embodiments, the material of second touch control electrode 211 can be other transparent conductive materials.In Fig. 2, any second touch-control
Orthographic projection and above-mentioned each first touch control electrode 201 of the electrode 211 to above-mentioned first touch control electrode layer at least part are overlapping.Fig. 4
For the floor map of the first touch control electrode 201 and 211 relative position of second touch control electrode in Fig. 2.Wherein, the first touch control electrode
201 and second touch control electrode 211 can be staggered in array format, first touch control electrode 201 can be with multiple the
Two touch control electrodes 211 have overlapping region 25.
In some optional implementations of the present embodiment, the shape of above-mentioned metal grill can be polygon, and upper
It states above-mentioned each metal line section that the edge of the first touch control electrode 201 is not in contact and all has equal length, i.e., above-mentioned metal
Grid can be the polygon with equal side length.Such as it can be square, regular pentagon, regular hexagon, octagon
Etc..
Table one is please referred to, table one shows the of different shapes of the same metal material production of equal length, same widths
Metal grill is formed by the resistance value of the first touch control electrode 201, and Fig. 5 a~5c illustratively shows each shape in table one
The metal grill pattern of composition, wherein each metal grill pattern is first touch control electrode 201, shown in Fig. 5 a~Fig. 5 c
Metal grill along the width of first direction X, the thickness of the width of Y and each metal grill is all the same in a second direction.
The resistance value of the metal grill of different shapes of table one
| Metal grill shape | Regular hexagon | Equilateral triangle | Diamond shape |
| Resistance value | 1.73271 | 0.98954 | 1.96017 |
As can be seen from table 1, the metal grill being made of multiple regular hexagons as shown in Figure 5 a is as each first touch-control
When electrode 201, the resistance value of each first touch control electrode 201 is minimum；The metal being made of multiple equilateral triangles as shown in Figure 5 b
When grid is as each first touch control electrode 201, the resistance value of each first touch control electrode 201 is taken second place；By multiple water chestnuts 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 of regular hexagon or equilateral triangle as the first touch control electrode 201.
When selecting the metal grill of regular hexagon composition as the first touch control electrode 201, appointing in above-mentioned metal grill
Anticipating a vertex can be shared by three regular hexagons；When the metal grill for selecting equilateral triangle to form is as the first touch-control electricity
When pole 201, any one vertex in above-mentioned metal grill is shared by six equilateral triangles.
Due to metal material do not have translucency, in order to make the light transmittance with higher of the first touch control electrode 201, need by
The area that the metal grill of the same metal material production of equal length, same widths is covered is maximum.Therefore, most preferably,
Use the metal grill that is made 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, improves 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 increases the first touching while reducing the impedance of the first touch control electrode as each first touch control electrode
Control the light transmittance of electrode.
In Fig. 2, dielectric is filled between above-mentioned first touch control electrode 201 and second touch control electrode 211, to be formed
Touch control detection capacitor, above-mentioned dielectric can be glass, air etc., or other make to form capacitor between two electrodes
Insulation dielectric.The first touching signals line L1 is provided on first substrate 20, the first touching signals line L1 is used for each
First touch control electrode 201 is connected to flexible circuit board 23.Flexible circuit board 23 is with insulating materials flexible such as polyimides
Or printed circuit board made of polyester film.Above-mentioned flexible circuit board 23 is used to above-mentioned first touch control electrode 201 being connected to inspection
Slowdown monitoring circuit, wherein detection circuit can be built in driving chip 24.The detection circuit is used for by receiving the first touch control electrode
The touch area of the detection signal detection touch-control display panel of 201 transmission.The second touch-control letter is provided in each the second substrate 21
Number line L2, the second touching signals line L2 is used to each second touch control electrode 211 being connected to driving chip 24, in the present embodiment
In, driving chip 24 is set in the second substrate 21.Above-mentioned driving chip 24 can be periodical by the second touching signals line L2
Provide touch drive signal to above-mentioned each second touch control electrode 211, above-mentioned detection circuit passes through the first touching signals line L1
Receive the signal of the first touch control electrode 201 return.
Fig. 6 is illustratively shown when finger touches touch-control display panel, electric 201 poles of above-mentioned first touch-control and the second touching
Control the working method between electrode 211.In Fig. 6, formed between above-mentioned first touch control electrode 201 and second touch control electrode 211
Capacitor C1, when touch-control display panel is touched without finger, the letter from the first touch control electrode 201 that above-mentioned detection circuit receives
It number is identical touch-control sensing signal F2.It is touched between above-mentioned first touch control electrode 201 and second touch control electrode 211 with finger
The case where cross one another position as an example, when finger touches touch-control display panel, the first touching of finger and display panel
It controls and generates capacitor C2 between electrode 201, it, can when driving chip 24 provides touch drive signal F1 to second touch control electrode 211
To get touch-control sensing signal F3 from the first touch control electrode 201 of finger touching display panel, this touch-control sensing signal phase
Impulse level value than the touch-control sensing signal F2 in other the first touch control electrodes 201 is lower, which passes through
First touching signals line L1 is transmitted to detection circuit.Detection circuit is provided based on driving chip 24 to second touch control electrode 211
The touch-control sensing signal of periodically pulsing signal and each first touch control electrode 201 received detects in X-Y plane
Touch area information.
In the present embodiment, touch-control display panel as shown in Figure 2 further includes multiple grids, 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
Set the insulating layer between above-mentioned multilayer metallic electrode, the specific overlapped way of above-mentioned metal electrode and insulating layer belongs to existing skill
Art, details are not described herein.It is noted that in the second substrate 21, the extending direction of above-mentioned second touch control electrode 211 with it is upper
The extending direction for 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 in touch-control display surface
When plate executes image display function, second touch control electrode 211 and pixel electrode (do not provide) collective effect in figure, in control
The deflection for stating the liquid crystal in liquid crystal layer controls the display of image；In addition, when touch-control display panel executes touch function, first
Touch control electrode 211 receives or feedback touch drive signal, executes touch function.
Fig. 8 is a kind of touch control display apparatus that the present embodiment proposes, display device can be organic field luminescence display dress
All flat panel types such as the self-luminous display device set etc. or the electronic paper-type display device with electrophoresis element etc.
Display device.In addition, the display device of belt sensor of the present embodiment can be used for such as smart phone, plate end
The various devices such as end, mobile telephone, the personal computer of notebook type, game station.Specifically, touch-control display dress
Set the touch-control display panel including mentioning in aforementioned any embodiment.
It will be appreciated by those skilled in the art that technical proposal scope involved in the application, however it is not limited to above-mentioned technology
Technical solution made of the specific combination of feature, while should also cover in the case where not departing from technical solution design, by
Above-mentioned technical characteristic or its equivalent feature carry out any combination and other technical solutions for being formed.Such as features described above and the application
Disclosed in (but be not limited to) replaced mutually with the technical characteristic of similar functions and the technical solution that is formed.
Claims (6)
1. a kind of touch-control display panel, which is characterized in that including first substrate and be oppositely arranged with the first substrate second
Substrate, wherein
The first substrate includes the first touch control electrode layer, and first touch control electrode layer includes multiple first touchings insulated from each other
Electrode is controlled, first touch control electrode extends in a first direction, and successively arranges in a second direction, first touch control electrode
Including the multiple metal grills being made of a plurality of metal wire sections, wherein be not in contact with the edge of first touch control electrode
Any one metal wire sections are shared by two metal grills；The shape of the metal grill is regular hexagon, the metal grill
In any one vertex by three regular hexagons share；
The second substrate includes second touch control electrode layer, and the second touch control electrode layer includes multiple electric with first touch-control
The second touch control electrode for the strip that pole is oppositely arranged, the second touch control electrode extend along the second direction, and along described
First direction is successively arranged, any orthographic projection and each described first of the second touch control electrode to first touch control electrode layer
Touch control electrode partly overlaps.
2. touch-control display panel according to claim 1, which is characterized in that the second touch control electrode is by translucent material
It is made, and is filled with dielectric between first touch control electrode to form capacitor.
3. touch-control display panel according to claim 2, which is characterized in that the second substrate further includes being arranged in array
Scan signal line and data signal line, the extending direction of the extending direction of the second touch control electrode and the data signal line
Unanimously, and it is parallel with the data signal line.
4. touch-control display panel according to claim 3, which is characterized in that the touch-control display panel further includes driving core
Piece, in the touch-control stage, the driving chip is used to send touch drive signal to the second touch control electrode, and receives described the
The touch-control sensing signal that one touch control electrode is sent.
5. touch-control display panel according to claim 4, which is characterized in that in the display stage, the second touch control electrode
It is multiplexed with public electrode.
6. a kind of display device, which is characterized in that the display device includes that the touch-control as described in one of claim 1-5 is shown
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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| CN106155448A CN106155448A (en) | 2016-11-23 |
| CN106155448B true CN106155448B (en) | 2019-07-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106775099B (en) * | 2016-12-28 | 2019-09-03 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN106681561B (en) * | 2017-01-03 | 2019-12-31 | 京东方科技集团股份有限公司 | Touch panel, manufacturing method thereof and touch display device |
| CN107092394B (en) | 2017-04-26 | 2020-06-30 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and touch screen |
| CN108845694B (en) * | 2018-06-06 | 2021-07-30 | 业成科技（成都）有限公司 | Metal grid touch module |
| EP3871071A4 (en) * | 2018-10-26 | 2022-06-15 | BOE Technology Group Co., Ltd. | Touch substrate, touch control display apparatus, method of fabricating 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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| CN103278955A (en) * | 2012-12-14 | 2013-09-04 | 上海天马微电子有限公司 | Touch liquid crystal display device |
| CN103500601A (en) * | 2013-09-27 | 2014-01-08 | 南昌欧菲光科技有限公司 | Conducting film, touch sensing element and touch electronic device |
| CN104281351A (en) * | 2014-10-10 | 2015-01-14 | 合肥鑫晟光电科技有限公司 | Touch substrate and display device |
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|---|---|---|---|---|
| CN103278955A (en) * | 2012-12-14 | 2013-09-04 | 上海天马微电子有限公司 | Touch liquid crystal display device |
| CN103500601A (en) * | 2013-09-27 | 2014-01-08 | 南昌欧菲光科技有限公司 | Conducting film, touch sensing element and touch electronic device |
| CN104281351A (en) * | 2014-10-10 | 2015-01-14 | 合肥鑫晟光电科技有限公司 | Touch substrate and display device |
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