CN104298402B - Touch control display apparatus - Google Patents
Touch control display apparatus Download PDFInfo
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- CN104298402B CN104298402B CN201410532074.XA CN201410532074A CN104298402B CN 104298402 B CN104298402 B CN 104298402B CN 201410532074 A CN201410532074 A CN 201410532074A CN 104298402 B CN104298402 B CN 104298402B
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- display apparatus
- control display
- screen
- touch control
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- 239000000758 substrate Substances 0.000 claims abstract description 58
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 51
- 239000010409 thin film Substances 0.000 claims abstract description 47
- 238000003491 array Methods 0.000 claims abstract description 3
- 230000006698 induction Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000010408 film Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 3
- 238000005530 etching Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 241001269238 Data Species 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- OFIYHXOOOISSDN-UHFFFAOYSA-N tellanylidenegallium Chemical compound [Te]=[Ga] OFIYHXOOOISSDN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides a kind of touch control display apparatus, the touch control display apparatus includes thin film transistor base plate, colored filter substrate and the liquid crystal layer between thin film transistor base plate and colored filter substrate, the thin film transistor base plate includes a plurality of scan line being parallel to each other and a plurality of data wire being parallel to each other, the multi-strip scanning line with a plurality of data lines is vertically insulated intersects to define multiple pixel cells.The colored filter substrate includes screen layer, the screen layer includes multiple screen units, the plurality of screen unit is arranged in arrays and viewing area of respectively with the plurality of pixel cell is corresponding, the viewing area of a corresponding pixel cell of each screen unit covering but expose scan line and data wire.The touch control display apparatus touch-control sensitivity is high.
Description
Technical field
The present invention relates to touch technology, more particularly to a kind of touch control display apparatus.
Background technology
With science and technology it is growing, the digitization tools such as mobile phone, personal digital assistant, notebook computer are obtained
To being widely applied, wherein display device turns into the indispensable part of man-machine interface in these instruments.In order to reach just
Profit, the purpose of light and handy and hommization, many information products via traditional keyboard or mouse etc., switch to use contact panel
(Touch Panel) is used as its input unit, and with the further development of touch technology and Display Technique, industry has been realized
Touch controllable function is integrated in a display device with the touch control display apparatus of formation integration.
At present, integrated touch control display apparatus mainly includes two types：Touch sensing is arranged on display panel
Polaroid and colored filter substrate between outer insert-type (On-Cell)；And touch sensing is embedded into display panel
Dot structure among interior insert-type (In-Cell).A kind of interior insert-type touch control display apparatus such as of the prior art is to touch
Sensor integration is controlled among fringe field switch type (Fringe Field Switching, FFS) liquid crystal display panel, its
In, in the colored filter substrate of liquid crystal display panel towards setting a plurality of touch-control sensing being parallel to each other in the one side of liquid crystal layer
The induction electrode of device, and using a plurality of public electrode being parallel to each other on the thin film transistor base plate of liquid crystal display panel as touch
The driving electrodes of sensor are controlled, driving electrodes are used for timesharing and provide public voltage signal and touch-control drive signal.Driving electrodes with
The bearing of trend of induction electrode is vertical, and inductance capacitance is formed in intersection.When driving electrodes provide touch-control drive signal, if people
Body contacts the touch-screen of touch control display apparatus, and the body capacitance electric field produced by between human body and touch-screen will act on sensing
On electric capacity, the capacitance of inductance capacitance is changed, now external touch circuit according on the induction electrode detected because sense
Answer electric capacity capacitance change caused by voltage change, it is possible to determine human contact to touch-screen contact position
Put.
However, the electrostatic of body capacitance produced during the touch-screen of human contact's touch control display apparatus and human body institute band
The voltage at liquid crystal pixel two ends can be influenceed simultaneously, so that producing the optical problems such as water ripples, light leak in display picture.To understand
The certainly problem, it is common practice to which the electrically conducting transparent screen layer of a planar is set between colored filter substrate and polaroid,
When human contact is to touch-screen, screen layer can effectively prevent influence of the body capacitance to liquid crystal pixel, and can rapidly will be quiet
Electric charge is grounded, it is to avoid electrostatic causes damage to touch-screen.However, being set between colored filter substrate and polaroid transparent
Conductive shielding layer, the screen layer shields influence of the body capacitance to inductance capacitance determined needed for contact position simultaneously, directly
Touch-control sensitivity is caused to reduce.
The content of the invention
The purpose of the present invention include provide a kind of touch control display apparatus, with solve in the prior art touch control display apparatus because
Screen layer is set to cause the problem of touch-control sensitivity is reduced between colored filter substrate and polaroid.
One embodiment of the invention provides a kind of touch control display apparatus, and the touch control display apparatus includes thin film transistor (TFT) base
Plate, the colored filter substrate being oppositely arranged with the thin film transistor base plate and positioned at thin film transistor base plate and colorized optical filtering
Liquid crystal layer between plate base.The thin film transistor base plate includes the first substrate and is arranged at first substrate towards liquid crystal layer
Surface on a plurality of scan line being parallel to each other and a plurality of data wire being parallel to each other, the multi-strip scanning line and many datas
Line is vertically insulated to intersect to define multiple pixel cells.The colored filter substrate include the second substrate and be arranged at this second
Substrate is towards the screen layer on the surface of liquid crystal layer, and the screen layer includes multiple screen units, and the plurality of screen unit is in matrix
Arrange and viewing area respectively with the plurality of pixel cell is corresponding, a pixel cell corresponding to each screen unit covering
Viewing area, on the bearing of trend of the scan line, the position pair where spacing between the adjacent screen unit of every two row
Answer the position where scan line；On the bearing of trend of the data wire, where the spacing between the adjacent screen unit of every two row
Position respective data lines where position.
Preferably, the spacing between the adjacent screen unit of every two row is equal to or more than the width of scan line, every two row
Spacing between adjacent screen unit is equal to or more than the width of data wire.
Preferably, the screen layer further comprises multiple first connecting portions, on the bearing of trend of the scan line, in often going
Screen unit between connected by the first connecting portion, the first connecting portion is parallel to the scan line.
Preferably, the first connecting portion between screen unit in often going is located between corresponding two adjacent scanning lines
The centre position in gap.
Preferably, the screen layer further comprises multiple second connecting portions, on the bearing of trend of the data wire, in each column
Screen unit between connected by the second connecting portion, the second connecting portion is parallel to data wire.
Preferably, each pixel cell includes the film crystalline substance of an intersection for being located at correspondence scan line and respective data lines
The second connecting portion between screen unit in body pipe, each column is connected to a neighbouring corresponding number for correspondence screen unit side
According to the position of line, and it is corresponding with the position where the thin film transistor (TFT).
Preferably, the second connecting portion between the screen unit in each column is located between corresponding two adjacent data lines
The centre position in gap.
Preferably, the width and the scan line or the width one of the data wire of the first connecting portion and the second connecting portion
Cause.
Preferably, the screen layer is made up of transparent conductive material, the plurality of screen unit of the screen layer, the plurality of first
Connecting portion and the plurality of second connecting portion etch to be formed by one of optical cover process.
Preferably, every frame period of the touch control display apparatus includes display time interval and touch-control period, should in display time interval
Multi-strip scanning line is sequentially provided scanning signal to corresponding pixel cell, the display data that a plurality of data lines is sequentially provided to pair
The pixel cell answered；Within the touch-control period, the multi-strip scanning line is driven as the driving electrodes of touch sensing for providing touch-control
Dynamic signal；The a plurality of data lines as touch sensing induction electrode, for provide because touch produce induced signal.
Preferably, the touch-control drive signal is square-wave signal, and the high voltage of each square wave is that -5V, low-voltage are -10V.
Preferably, every frame period of the touch control display apparatus includes display time interval and touch-control period, should in display time interval
Multi-strip scanning line is sequentially provided scanning signal to corresponding pixel cell, the display data that a plurality of data lines is sequentially provided to pair
The pixel cell answered；Within the touch-control period, a plurality of data lines is driven as the driving electrodes of touch sensing for providing touch-control
Dynamic signal；The multi-strip scanning line as touch sensing induction electrode, for provide because touch produce induced signal.
Preferably, be further provided with the first substrate of the thin film transistor base plate first electrode layer, insulating barrier and
The second electrode lay, the first electrode layer includes public electrode and a kind of electrode in pixel electrode, and the second electrode lay includes public affairs
Common electrode and another electrode in pixel electrode.
Preferably, the liquid crystal molecule in the liquid crystal layer is negative liquid crystal molecule.
Another embodiment of the present invention provides a kind of touch control display apparatus, and the touch control display apparatus includes thin film transistor (TFT) base
Plate, the colored filter substrate being oppositely arranged with the thin film transistor base plate and positioned at thin film transistor base plate and colorized optical filtering
Liquid crystal layer between plate base.The thin film transistor base plate includes the first substrate and is arranged at first substrate towards liquid crystal layer
Surface on a plurality of scan line being parallel to each other and a plurality of data wire being parallel to each other, the multi-strip scanning line and many datas
Line is vertically insulated to intersect to define multiple pixel cells.The colored filter substrate include the second substrate and be arranged at this second
Substrate is towards the screen layer on the surface of liquid crystal layer, and the screen layer includes multiple strip screen units being parallel to each other, the plurality of
The bearing of trend of strip screen unit is parallel with the data wire, and the plurality of strip screen unit is used to cover each pixel cell
The position where the position respective data lines where spacing between viewing area, the adjacent screen unit of each two.
Preferably, the spacing between the adjacent screen unit of each two is equal to or more than the width of data wire.
Preferably, the screen layer further comprises multiple connecting portions, on the bearing of trend of the scan line, the often capable picture of correspondence
Connected between plain unit, adjacent shields unit by the connecting portion, the connecting portion is located at corresponding parallel to the scan line
The centre position in the gap between two adjacent scanning lines.
Preferably, every frame period of the touch control display apparatus includes display time interval and touch-control period, should in display time interval
Multi-strip scanning line is sequentially provided scanning signal to corresponding pixel cell, the display data that a plurality of data lines is sequentially provided to pair
The pixel cell answered；Within the touch-control period, the multi-strip scanning line is driven as the driving electrodes of touch sensing for providing touch-control
Dynamic signal；The a plurality of data lines as touch sensing induction electrode, for provide because touch produce induced signal.
Another embodiment of the present invention provides a kind of touch control display apparatus, and the touch control display apparatus includes thin film transistor (TFT) base
Plate, the colored filter substrate being oppositely arranged with the thin film transistor base plate and positioned at thin film transistor base plate and colorized optical filtering
Liquid crystal layer between plate base.The thin film transistor base plate includes the first substrate and is arranged at first substrate towards liquid crystal layer
Surface on a plurality of scan line being parallel to each other and a plurality of data wire being parallel to each other, the multi-strip scanning line and many datas
Line is vertically insulated to intersect to define multiple pixel cells.The colored filter substrate include the second substrate and be arranged at this second
Substrate is towards the screen layer on the surface of liquid crystal layer, and the screen layer includes multiple strip screen units being parallel to each other, the plurality of
The bearing of trend of strip screen unit is parallel with the scan line, and the plurality of strip screen unit is used to cover each pixel cell
The position where the correspondence scan line of position where spacing between viewing area, the adjacent screen unit of each two.
Preferably, the spacing between the adjacent screen unit of each two is equal to or more than the width of scan line.
Preferably, each pixel cell includes the film crystalline substance of an intersection for being located at correspondence scan line and respective data lines
Body pipe, the screen layer further comprises multiple connecting portions, on the bearing of trend of the data wire, correspondence each column pixel cell, phase
Connected between adjacent screen unit by the connecting portion, the connecting portion is parallel to the data wire, and it is adjacent to be located at each column pixel cell
The position of a nearly corresponding data line, and it is corresponding with the position where the thin film transistor (TFT).
Preferably, the screen layer further comprises multiple connecting portions, on the bearing of trend of the data wire, correspondence each column picture
Connected between plain unit, adjacent shields unit by the connecting portion, the connecting portion is located at corresponding parallel to the data wire
The centre position in the gap between two adjacent data lines.
Preferably, every frame period of the touch control display apparatus includes display time interval and touch-control period, should in display time interval
Multi-strip scanning line is sequentially provided scanning signal to corresponding pixel cell, the display data that a plurality of data lines is sequentially provided to pair
The pixel cell answered；Within the touch-control period, a plurality of data lines is driven as the driving electrodes of touch sensing for providing touch-control
Dynamic signal；The multi-strip scanning line as touch sensing induction electrode, for provide because touch produce induced signal.
Because above-mentioned touch control display apparatus covers the viewing area of pixel cell by multiple screen units, therefore, this is more
Individual screen unit body capacitance produced when can effectively prevent the touch-screen of human contact's touch control display apparatus is to liquid crystal
The influence of pixel, it is to avoid the problems such as display picture produces water ripples and light leak, and rapidly can be grounded electrostatic charge, it is to avoid it is quiet
Electricity causes damage to touch-screen.And due to there is gap to expose scan line or/and data wire between adjacent shields unit, because
This, when scan line and data wire respectively as touch sensing driving electrodes and induction electrode to realize touch controllable function when, screen
Influence of the body capacitance to inductance capacitance determined needed for contact position will not be shielded by covering layer, therefore touch-control sensitivity can be avoided to drop
It is low.
Brief description of the drawings
A kind of part planar structural representation for touch control display apparatus that Fig. 1 is provided by the first embodiment of the present invention.
Fig. 2 be Fig. 1 shown in touch control display apparatus along II-II cross-sectional view.
Fig. 3 is the part planar structural representation of the thin film transistor base plate of the touch control display apparatus shown in Fig. 1.
Fig. 4 is the part planar structural representation of the screen layer of the touch control display apparatus shown in Fig. 1.
Fig. 5 is the work schedule schematic diagram of the touch control display apparatus shown in Fig. 1.
A kind of part planar structural representation for touch control display apparatus that Fig. 6 is provided by the second embodiment of the present invention.
Fig. 7 is the part planar structural representation of the screen layer of the touch control display apparatus shown in Fig. 6.
A kind of part planar structural representation for touch control display apparatus that Fig. 8 is provided by the third embodiment of the present invention.
Fig. 9 is the part planar structural representation of the screen layer of the touch control display apparatus shown in Fig. 8.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to touch control display apparatus proposed by the present invention its embodiment, method, step, structure,
Feature and effect, are described in detail as after.
For the present invention foregoing and other technology contents, feature and effect, in the following preferable reality coordinated with reference to schema
Applying in the detailed description of example to be clearly presented.By the explanation of embodiment, when can reach predetermined to the present invention
The technological means and effect that purpose is taken be able to more deeply and it is specific understand, but institute's accompanying drawings be only to provide with reference to
Purposes of discussion, not for being any limitation as to the present invention.
Also referring to Fig. 1 and Fig. 2, a kind of touch control display apparatus that Fig. 1 is provided by the first embodiment of the present invention
Part planar structural representation, Fig. 2 be Fig. 1 shown in touch control display apparatus along II-II cross-sectional view.Such as Fig. 1
With shown in Fig. 2, touch control display apparatus 100 includes thin film transistor base plate 110, is oppositely arranged with the thin film transistor base plate 110
Colored filter substrate 120 and the liquid crystal layer between thin film transistor base plate 110 and colored filter substrate 120
130。
In the present embodiment, the display panel of touch control display apparatus 100 is fringe field switch type liquid crystal display panel,
In other embodiment, the display panel of touch control display apparatus 100 is alternatively plane inner switching type display panel, stable twisted nematic and shown
Show panel etc..Preferably, the liquid crystal molecule in liquid crystal layer 130 can use negative liquid crystal molecule, due to negative liquid crystal in the electric field
The short-axis direction of molecule is parallel with direction of an electric field, therefore when applying electric field in the touch control display apparatus 100, in liquid crystal layer 130
Negative liquid crystal molecule can in the rotation with surface parallel with thin film transistor base plate 110, colored filter substrate 120, and
Short-axis direction is parallel with direction of an electric field, makes the translucency of liquid crystal layer 130 more preferably.
Thin film transistor base plate 110 includes the first substrate 112, first electrode layer 114, insulating barrier 116 and second electrode
Layer 118.The first electrode layer 114, insulating barrier 116 and the second electrode lay 118 are cascadingly set on the court of the first substrate 112
To on the surface of liquid crystal layer 130, the insulating barrier 116 is arranged between the first electrode layer 114 and the second electrode lay 118, and this
Two electrode layers 118 are adjacent to liquid crystal layer 130, and the first electrode layer 114 is away from liquid crystal layer 130, that is to say, that the second electrode lay
118 are located between liquid crystal layer 130 and first electrode layer 114.Electrode in the second electrode lay 118 includes multiple be parallel to each other
Strip sub-electrode 1180, in the present embodiment, the electrode in the first electrode layer 114 are plane-shape electrode structure, in other implementations
In example, the electrode in the first electrode layer 114 may also comprise multiple strip sub-electrodes being parallel to each other, and first electrode layer
Strip sub-electrode in 114 intersects with the strip sub-electrode insulation in the second electrode lay 118.The first electrode layer 114 is with being somebody's turn to do
The second electrode lay 118 is that transparent conductive material is made.In the present embodiment, the first electrode layer 114 includes pixel electrode (not
Sign), the second electrode lay 118 includes public electrode (not indicating), and in other embodiments, the first electrode layer 114 includes
Public electrode, the second electrode lay 118 includes pixel electrode.
Also referring to Fig. 3, Fig. 3 is the part of the thin film transistor base plate 110 of the touch control display apparatus 100 shown in Fig. 1
Planar structure schematic diagram.As shown in figure 3, thin film transistor base plate 110 further comprises being arranged at first substrate 112 towards liquid
The a plurality of scan line 111 being parallel to each other and a plurality of data wire 113 being parallel to each other on the surface of crystal layer 130.This is a plurality of to sweep
Retouch line 111 and a plurality of data lines 113 is vertically insulated intersects to define multiple pixel cells 140, that is to say, that each pixel list
Member 140 is surrounded by two adjacent scan lines 111 and two adjacent data wires 113, also, each pixel cell 140 is wrapped
Include one and be located at correspondence scan line 111 and the thin film transistor (TFT) 141 of the intersection of respective data lines.
Colored filter substrate 120 includes the second substrate 122, color blocking layer 124 and screen layer 126.The He of color blocking layer 124
Screen layer 126 is cascadingly set on two substrate 122 towards on the surface of liquid crystal layer 130, and the screen layer 126 is adjacent to liquid crystal layer
130, the color blocking layer 124 is away from liquid crystal layer 130, that is to say, that the screen layer 126 be located at liquid crystal layer 130 and color blocking layer 124 it
Between.The screen layer 126 is made up of transparent conductive material, when touch-screen of the human contact to the touch control display apparatus 100, the screen
Covering layer 126 is used to prevent influence of the body capacitance to liquid crystal pixel, and rapidly can be grounded electrostatic charge, it is to avoid electrostatic is to touching
Touch screen and cause damage.
Also referring to Fig. 1 and Fig. 4, Fig. 4 is the part planar of the screen layer 126 of the touch control display apparatus 100 shown in Fig. 1
Structural representation.The screen layer 126 includes multiple screen units 1260, first connecting portion 1262 and second connecting portion 1264,
The plurality of screen unit 1260 is arranged in arrays, and the viewing area respectively with multiple pixel cells 140 is corresponding, and each shielding is single
The viewing area of a corresponding pixel cell 140 of the covering of member 1260, that is to say, that each covering of screen unit 1260 institute is right
The pixel electrode and public electrode in a pixel cell 140 answered.On the bearing of trend of scan line 111, the screen in often going
Cover and connected by first connecting portion 1262 between unit 1260, first connecting portion 1262 is parallel to scan line 111；In data wire
On 113 bearing of trend, connected between the screen unit 1260 in each column by second connecting portion 1264, second connecting portion 1264
Parallel to data wire 113.The first connecting portion 1262, second connecting portion 1264 width can be with scan line 111 or data wire
113 width is consistent.Where position correspondence scan line 111 where spacing between the adjacent screen unit 1260 of every two row
Position, it is preferable that the spacing between the adjacent screen unit 1260 of every two row can be equal to or slightly greater than the width of scan line 111
Degree.The position where the position respective data lines 113 where spacing between the adjacent screen unit 1260 of every two row, preferably
Spacing between ground, the adjacent screen unit 1260 of every two row is equal to or slightly greater than the width of data wire 113, to avoid shielding
Unit 1260 covers scan line 111 and data wire 113.
In the present embodiment, it is single that the first connecting portion 1262 between screen unit 1260 in often going is connected to correspondence shielding
The centre position of member 1260, that is to say, that the first connecting portion 1262 between screen unit 1260 in often going is located at corresponding
The centre position in the gap between two adjacent scanning lines 111；The second connecting portion between screen unit 1260 in each column
1264 are connected to the position of a neighbouring corresponding data line 113 for correspondence screen unit 1260 side, and and film crystal
Position where pipe 141 is corresponding, therefore, for the touch control display apparatus using bottom gate thin film transistor structure, in film
The source electrode of transistor 141 or drain electrode in itself and cover correspondence scan line 111 area in the case of, by screen layer
126 second connecting portion 1264 is arranged on the position of correspondence thin film transistor (TFT) 141, will not increase screen layer 126 to scan line 111
Dead area.In other embodiments, second connecting portion 1264 may also connect to the centre position of correspondence screen unit 1260,
That is, the second connecting portion 1264 between screen unit 1260 in each column is located at corresponding two adjacent data lines 113
Between gap centre position.The distributing position of first connecting portion 1262 and second connecting portion 1264 is than more uniform and rule
It is whole, so that screen unit 1260 is connected by first connecting portion 1262 and second connecting portion 1264, when screen layer 126 has electric current
When, electric current can be made to flow uniformly through each screen unit 1260, and avoid influenceing shield effectiveness.
Also referring to Fig. 1 and Fig. 5, Fig. 5 is the work schedule schematic diagram of the touch control display apparatus 100 shown in Fig. 1.This is touched
The driving frequency for controlling display device 100 can be 120Hz, every frame period of the touch control display apparatus 100 include a display time interval and
The touch-control period.As shown in figure 5, within every frame period of the touch control display apparatus 100, the first half time of the frame period is as aobvious
Show the period, the later half time is used as the touch-control period.In display time interval, the multi-strip scanning line 111 is sequentially provided scanning signal G1-
Gn gives corresponding pixel cell 140, and the display data that a plurality of data lines 113 is sequentially provided gives corresponding pixel cell 140, from
And realize the display function of the touch control display apparatus 100.Within the touch-control period, the multi-strip scanning line 111 is used as touch sensing
Driving electrodes, for providing touch-control drive signal；The a plurality of data lines 113 is used for as the induction electrode of touch sensing
There is provided because touching the induced signal produced, to realize the touch controllable function of the touch control display apparatus 100.The scan line 111 is provided
Scanning signal G1-Gn gate high-voltage can be 19V, grid low-voltage can be -8V, and the scan line 111 is provided touches
Control drive signal is square-wave signal, and the high voltage of each square wave is that -5V, low-voltage are -10V, when touch-control drive signal is in low electricity
When changing between pressure -10V and high voltage -5V, the leakage current in the IV curves of the thin film transistor (TFT) in corresponding pixel cell 140
Ioff is between 1E-11~1E-12, it is seen that because the leakage current that touch-control drive signal is produced is very small, therefore will not be brilliant to film
Body pipe impacts and destroys normal display.
In other embodiments, a plurality of data lines 113 also can as touch sensing driving electrodes, it is tactile for providing
Control drive signal；The multi-strip scanning line 111 also can as touch sensing induction electrode, for provide because touch produce sense
Induction signal.
Because the touch control display apparatus 100 by multiple screen units 1260 is covered each by the aobvious of respective pixel unit 140
Show region, therefore, when the plurality of screen unit 1260 can effectively prevent the touch-screen of human contact's touch control display apparatus 100
Influence of the produced body capacitance to liquid crystal pixel, it is to avoid the problems such as display picture produces water ripples and light leak, and can be quick
Electrostatic charge is grounded by ground, it is to avoid electrostatic causes damage to touch-screen.And due to having gap between adjacent shields unit 1260
To expose scan line 111 and data wire 113, therefore, when scan line 111 and data wire 113 are respectively as touch sensing
Driving electrodes and induction electrode are to realize during touch controllable function, and screen layer 126 will not shield the human body electricity determined needed for contact position
Hold the influence to inductance capacitance, therefore touch-control sensitivity can be avoided to reduce.And connect the first connection between screen unit 1260
The area in the gap between screen unit 1260 shared by portion 1262, second connecting portion 1264 is smaller, and substantially touch-control will not be believed
Number cause screen effect.
Further, the screen unit 1260 and first connecting portion 1262 of the screen layer 126, second connecting portion 1264 can
Etch to be formed by one of optical cover process in the manufacturing process of the touch control display apparatus 100, processing procedure is simple, and cost is relatively low.And
Existing scan line 111 and data wire 113, nothing in display panel is respectively adopted in the driving electrodes and induction electrode of touch sensing
It need to additionally make, therefore the processing procedure of whole touch control display apparatus 100 can be simplified, reduce cost.
Also referring to Fig. 6 and Fig. 7, a kind of touch control display apparatus that Fig. 6 is provided by the second embodiment of the present invention
Part planar structural representation, Fig. 7 is the part planar structural representation of the screen layer of the touch control display apparatus shown in Fig. 6.Such as
Shown in Fig. 6 and Fig. 7, the touch control display apparatus 200 is similar to the touch control display apparatus 100 that first embodiment is provided, and it is distinguished
Essentially consist in, the multi-strip scanning line 211 of the touch control display apparatus 200 as touch sensing driving electrodes, it is tactile for providing
Control drive signal；A plurality of data lines 213 is believed as the induction electrode of touch sensing for providing because touching the sensing produced
Number.Screen layer 226 includes multiple strip screen units 2260 and connecting portion 2262 being parallel to each other, and the plurality of strip shielding is single
The bearing of trend of member 2260 is parallel with data wire 213, and the plurality of strip screen unit 2260 is used to cover each pixel cell 240
Viewing area, where the position respective data lines 213 where the spacing between the adjacent strip screen unit 2260 of each two
Position, it is preferable that the spacing between the adjacent strip screen unit 2260 of each two is equal to or slightly greater than data wire 213
Width, to avoid screen unit 2260 from covering data wire 213.On the bearing of trend of scan line 211, corresponding often row pixel cell
240, connected by connecting portion 2262 between adjacent shields unit 2260, connecting portion 2262 is located at parallel to scan line 211
The every centre position of row pixel cell 240, that is to say, that in the gap between corresponding two adjacent scanning lines 211
Between position.
Also referring to Fig. 8 and Fig. 9, a kind of touch control display apparatus that Fig. 8 is provided by the third embodiment of the present invention
Part planar structural representation, Fig. 9 is the part planar structural representation of the screen layer of the touch control display apparatus shown in Fig. 8.Such as
Shown in Fig. 8 and Fig. 9, the touch control display apparatus 300 is similar to the touch control display apparatus 100 that first embodiment is provided, and it is distinguished
Essentially consist in, a plurality of data lines 313 of the touch control display apparatus 300 as touch sensing driving electrodes, it is tactile for providing
Control drive signal；Multi-strip scanning line 311 is believed as the induction electrode of touch sensing for providing because touching the sensing produced
Number.Screen layer 326 includes multiple strip screen units 3260 and connecting portion 3264 being parallel to each other, and the plurality of strip shielding is single
The bearing of trend of member 3260 is parallel with scan line 311, and the plurality of strip screen unit 3260 is used to cover each pixel cell 340
Viewing area, where the position correspondence scan line 311 where the spacing between the adjacent strip screen unit 3260 of each two
Position, it is preferable that the spacing between the adjacent strip screen unit 3260 of each two is equal to or slightly greater than scan line 311
Width, to avoid screen unit 3260 from covering scan line 311.On the bearing of trend of data wire 313, correspondence each column pixel cell
340, connected by connecting portion 3264 between adjacent shields unit 3260, connecting portion 3264 is located at parallel to data wire 313
Each column pixel cell 340 adjacent to the position of a corresponding data line 313, and with the position phase where thin film transistor (TFT) 341
Correspondence.In other embodiments, connecting portion 3264 may be alternatively located at the centre position of each column pixel cell 340, that is to say, that be located at
The centre position in the gap between corresponding two adjacent data lines 313.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, any to be familiar with this specialty
Technical staff, it is without departing from the scope of the present invention, a little when being made using above-mentioned disclosed technology contents
Change or modification etc., any modification, equivalent substitution or improvement for being made within the spirit and principles of the invention etc. all should be wrapped
It is contained within protection scope of the present invention.
Claims (23)
1. a kind of touch control display apparatus, including the colored filter that thin film transistor base plate and the thin film transistor base plate are oppositely arranged
Mating plate substrate and the liquid crystal layer between thin film transistor base plate and colored filter substrate, the thin film transistor base plate bag
Include the first substrate and be arranged at first substrate towards a plurality of scan line being parallel to each other on the surface of liquid crystal layer and a plurality of
The data wire being parallel to each other, the multi-strip scanning line with a plurality of data lines is vertically insulated intersects to define multiple pixel cells, should
Colored filter substrate includes the second substrate and is arranged at second substrate towards the screen layer on the surface of liquid crystal layer, and it is special
Levy and be, the screen layer include multiple screen units, the plurality of screen unit it is arranged in arrays and respectively with the plurality of pixel list
The viewing area correspondence of member, the viewing area of a corresponding pixel cell of each screen unit covering, in the scan line
On bearing of trend, the position where the correspondence scan line of position where the spacing between the adjacent screen unit of every two row；At this
On the bearing of trend of data wire, the position where the position respective data lines where spacing between the adjacent screen unit of every two row
Put；The a plurality of data lines as touch sensing driving electrodes, the multi-strip scanning line as touch sensing induction electrode,
Or the multi-strip scanning line is as the driving electrodes of touch sensing, a plurality of data lines as touch sensing induction electrode.
2. touch control display apparatus according to claim 1, it is characterised in that between the adjacent screen unit of every two row
Spacing between width away from equal to or more than scan line, the adjacent screen unit of every two row is equal to or more than data wire
Width.
3. touch control display apparatus according to claim 1, it is characterised in that the screen layer further comprises that multiple first connect
Socket part, on the bearing of trend of the scan line, is connected between the screen unit in often going by the first connecting portion, first company
Socket part is parallel to the scan line.
4. touch control display apparatus according to claim 3, it is characterised in that first between screen unit in often going connects
Socket part is located at the centre position in the gap between corresponding two adjacent scanning lines.
5. touch control display apparatus according to claim 3, it is characterised in that the screen layer further comprises that multiple second connect
Socket part, on the bearing of trend of the data wire, is connected between the screen unit in each column by the second connecting portion, second company
Socket part is parallel to data wire.
6. touch control display apparatus according to claim 5, it is characterised in that each pixel cell includes one and is located at correspondence
The second connecting portion between screen unit in the thin film transistor (TFT) of the intersection of scan line and respective data lines, each column is connected to
The position of a neighbouring corresponding data line for correspondence screen unit side, and it is relative with the position where the thin film transistor (TFT)
Should.
7. touch control display apparatus according to claim 5, it is characterised in that second between the screen unit in each column connects
Socket part is located at the centre position in the gap between corresponding two adjacent data lines.
8. touch control display apparatus according to claim 5, it is characterised in that the first connecting portion and the second connecting portion
Width is consistent with the width of the scan line or the data wire.
9. touch control display apparatus according to claim 5, it is characterised in that the screen layer is made up of transparent conductive material,
The plurality of screen unit, the plurality of first connecting portion and the plurality of second connecting portion of the screen layer pass through one of optical cover process
Etching is formed.
10. touch control display apparatus according to claim 1, it is characterised in that the bag of every frame period of the touch control display apparatus
Display time interval and touch-control period are included, the multi-strip scanning line is sequentially provided scanning signal to corresponding pixel list in display time interval
Member, the display data that a plurality of data lines is sequentially provided gives corresponding pixel cell；Within the touch-control period, the multi-strip scanning line is made
For the driving electrodes of touch sensing, for providing touch-control drive signal；The a plurality of data lines as touch sensing sensing
Electrode, for providing because touching the induced signal produced.
11. touch control display apparatus according to claim 10, it is characterised in that the touch-control drive signal is square-wave signal,
The high voltage of each square wave is that -5V, low-voltage are -10V.
12. touch control display apparatus according to claim 1, it is characterised in that the bag of every frame period of the touch control display apparatus
Display time interval and touch-control period are included, the multi-strip scanning line is sequentially provided scanning signal to corresponding pixel list in display time interval
Member, the display data that a plurality of data lines is sequentially provided gives corresponding pixel cell；Within the touch-control period, a plurality of data lines is made
For the driving electrodes of touch sensing, for providing touch-control drive signal；The multi-strip scanning line as touch sensing sensing
Electrode, for providing because touching the induced signal produced.
13. touch control display apparatus according to claim 1, it is characterised in that the first substrate of the thin film transistor base plate
On be further provided with first electrode layer, insulating barrier and the second electrode lay, the first electrode layer include public electrode and pixel
A kind of electrode in electrode, the second electrode lay includes public electrode and another electrode in pixel electrode.
14. touch control display apparatus according to claim 13, it is characterised in that the liquid crystal molecule in the liquid crystal layer is negativity
Liquid crystal molecule.
15. a kind of touch control display apparatus, including the colored filter that thin film transistor base plate and the thin film transistor base plate are oppositely arranged
Mating plate substrate and the liquid crystal layer between thin film transistor base plate and colored filter substrate, the thin film transistor base plate bag
Include the first substrate and be arranged at first substrate towards a plurality of scan line being parallel to each other on the surface of liquid crystal layer and a plurality of
The data wire being parallel to each other, the multi-strip scanning line with a plurality of data lines is vertically insulated intersects to define multiple pixel cells, should
Colored filter substrate includes the second substrate and is arranged at second substrate towards the screen layer on the surface of liquid crystal layer, and it is special
Levy and be, the screen layer include multiple strip screen units being parallel to each other, the bearing of trend of the plurality of strip screen unit with
The data wire is parallel, and the plurality of strip screen unit is used for the viewing area for covering each pixel cell, the adjacent screen of each two
Cover the position where the position respective data lines where the spacing between unit；The multi-strip scanning line as touch sensing drive
Moving electrode, a plurality of data lines as touch sensing induction electrode.
16. touch control display apparatus according to claim 15, it is characterised in that between the adjacent screen unit of each two
Spacing is equal to or more than the width of data wire.
17. touch control display apparatus according to claim 15, it is characterised in that the screen layer further comprises multiple connections
Portion, on the bearing of trend of the scan line, corresponds to and is connected between often row pixel cell, adjacent shields unit by the connecting portion
Connect, the connecting portion is parallel to the scan line, and the centre position in the gap between corresponding two adjacent scanning lines.
18. touch control display apparatus according to claim 15, it is characterised in that the bag of every frame period of the touch control display apparatus
Display time interval and touch-control period are included, the multi-strip scanning line is sequentially provided scanning signal to corresponding pixel list in display time interval
Member, the display data that a plurality of data lines is sequentially provided gives corresponding pixel cell；Within the touch-control period, the multi-strip scanning line is made
For the driving electrodes of touch sensing, for providing touch-control drive signal；The a plurality of data lines as touch sensing sensing
Electrode, for providing because touching the induced signal produced.
19. a kind of touch control display apparatus, including the colored filter that thin film transistor base plate and the thin film transistor base plate are oppositely arranged
Mating plate substrate and the liquid crystal layer between thin film transistor base plate and colored filter substrate, the thin film transistor base plate bag
Include the first substrate and be arranged at first substrate towards a plurality of scan line being parallel to each other on the surface of liquid crystal layer and a plurality of
The data wire being parallel to each other, the multi-strip scanning line with a plurality of data lines is vertically insulated intersects to define multiple pixel cells, should
Colored filter substrate includes the second substrate and is arranged at second substrate towards the screen layer on the surface of liquid crystal layer, and it is special
Levy and be, the screen layer include multiple strip screen units being parallel to each other, the bearing of trend of the plurality of strip screen unit with
The scan line is parallel, and the plurality of strip screen unit is used for the viewing area for covering each pixel cell, the adjacent screen of each two
The position where the corresponding scan line in position where covering the spacing between unit；The a plurality of data lines as touch sensing drive
Moving electrode, the multi-strip scanning line as touch sensing induction electrode.
20. touch control display apparatus according to claim 19, it is characterised in that between the adjacent screen unit of each two
Spacing is equal to or more than the width of scan line.
21. touch control display apparatus according to claim 19, it is characterised in that each pixel cell includes one and is located at pair
The thin film transistor (TFT) of the intersection of scan line and respective data lines is answered, the screen layer further comprises multiple connecting portions, in the number
According on the bearing of trend of line, correspond to and connected between each column pixel cell, adjacent shields unit by the connecting portion, the connecting portion
Parallel to the data wire, and positioned at each column pixel cell adjacent to the position of a corresponding data line, and with the film crystal
Position where pipe is corresponding.
22. touch control display apparatus according to claim 19, it is characterised in that the screen layer further comprises multiple connections
Portion, on the bearing of trend of the data wire, corresponds to and is connected between each column pixel cell, adjacent shields unit by the connecting portion
Connect, the connecting portion is parallel to the data wire, and the centre position in the gap between corresponding two adjacent data lines.
23. touch control display apparatus according to claim 19, it is characterised in that the bag of every frame period of the touch control display apparatus
Display time interval and touch-control period are included, the multi-strip scanning line is sequentially provided scanning signal to corresponding pixel list in display time interval
Member, the display data that a plurality of data lines is sequentially provided gives corresponding pixel cell；Within the touch-control period, a plurality of data lines is made
For the driving electrodes of touch sensing, for providing touch-control drive signal；The multi-strip scanning line as touch sensing sensing
Electrode, for providing because touching the induced signal produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410532074.XA CN104298402B (en) | 2014-10-10 | 2014-10-10 | Touch control display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410532074.XA CN104298402B (en) | 2014-10-10 | 2014-10-10 | Touch control display apparatus |
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| CN104298402A CN104298402A (en) | 2015-01-21 |
| CN104298402B true CN104298402B (en) | 2017-09-22 |
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| CN201410532074.XA Active CN104298402B (en) | 2014-10-10 | 2014-10-10 | Touch control display apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739779B (en) * | 2016-02-01 | 2019-04-05 | 昆山龙腾光电有限公司 | Touch control display apparatus |
| CN106201151B (en) * | 2016-08-31 | 2019-08-06 | 上海创功通讯技术有限公司 | Display panel and electronic equipment |
| CN114882829A (en) * | 2021-02-05 | 2022-08-09 | 深圳市柔宇科技股份有限公司 | Touch display screen, electronic equipment and driving method of touch display screen |
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| CN102279687A (en) * | 2010-06-08 | 2011-12-14 | 胜华科技股份有限公司 | Touch panel and applied touch display device thereof |
| CN102446012A (en) * | 2010-09-30 | 2012-05-09 | 联胜（中国）科技有限公司 | Touch panel structure and touch display panel |
| CN202615347U (en) * | 2012-03-31 | 2012-12-19 | 北京京东方光电科技有限公司 | Touch screen, touch control liquid crystal display (LCD) panel and display device |
| CN102937845A (en) * | 2012-10-26 | 2013-02-20 | 北京京东方光电科技有限公司 | Embedded touch screen and display device |
| CN103135292A (en) * | 2011-11-30 | 2013-06-05 | 乐金显示有限公司 | Liquid crystal display device having touch screen |
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| CN102279687A (en) * | 2010-06-08 | 2011-12-14 | 胜华科技股份有限公司 | Touch panel and applied touch display device thereof |
| CN102446012A (en) * | 2010-09-30 | 2012-05-09 | 联胜（中国）科技有限公司 | Touch panel structure and touch display panel |
| CN103135292A (en) * | 2011-11-30 | 2013-06-05 | 乐金显示有限公司 | Liquid crystal display device having touch screen |
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| CN104298402A (en) | 2015-01-21 |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |