CN106484197B - Contact panel and its driving method, drive device - Google Patents
Contact panel and its driving method, drive device Download PDFInfo
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- CN106484197B CN106484197B CN201610922137.1A CN201610922137A CN106484197B CN 106484197 B CN106484197 B CN 106484197B CN 201610922137 A CN201610922137 A CN 201610922137A CN 106484197 B CN106484197 B CN 106484197B
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- touch
- touch control
- control electrode
- electrode
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of contact panel and its driving method, drive device, belong to touch-control field.The contact panel includes photosensitive material layer, the lead electrode layer on the surface for the first side for being arranged on photosensitive material layer, a plurality of first touch control electrode extended in a first direction, and a plurality of second touch control electrode extended in a second direction；Wherein, contact panel has a touch area, and a plurality of first touch control electrode and a plurality of second touch control electrode are arranged in a crossed manner in touch area；Part of first touch control electrode between two adjacent second touch control electrodes contacts with the surface of the second side of photosensitive material layer；First touch control electrode, photosensitive material layer and lead electrode layer form photodiode in the region that the first touch control electrode and photosensitive material layer contact with each other.The present invention be multiplexed with based on the first touch control electrode photodiode electrode design, it is possible to achieve photosensitive contact panel it is lightening, meet its use demand under more application scenarios.
Description
Technical field
The present invention relates to technical field of touch control, more particularly to a kind of contact panel and its driving method, drive device.
Background technology
Currently, contact panel is as one of human-computer interface device of most main flow.Such as traditional capacitance type touch-control panel
Arranged by interconnected a plurality of row to scan line with a plurality of to scan line, by detecting the electricity at two scan line intervening portions
The variable quantity of appearance judges that finger or conductor touch the position of its panel, and the change for the position touched by finger judges its movement
Amount and translational speed, and have the characteristics that sense of touch is sensitive, light transmittance is high and heat-resist, on current intelligent terminal
Through being widely used.
And with increasingly rich and varied use demand, some manufacturers wish the photosensitive function in surface can be integrated into tactile
Control among panel.On the other hand, most common function Integration Mode is in original contact panel photosensor array substrate stacked
Above or below, so as to realize that surface is photosensitive by photosensor array in the case where not influenceing touch controllable function.But which
Obtained product at least needs to increase the thickness occupied by a whole photosensor array substrate compared to original contact panel, difficult
To meet the needs of current contact panel and its lightening application product.
The content of the invention
For in the prior art the defects of, the present invention provides a kind of contact panel and its driving method, drive device, can be with
Realize a kind of frivolous contact panel with surface sensitization function.
In a first aspect, the present invention provides a kind of contact panel, the contact panel includes photosensitive material layer, is arranged on described
Lead electrode layer on the surface of first side of photosensitive material layer, a plurality of first touch control electrode extended in a first direction, and
The a plurality of second touch control electrode extended in a second direction；Wherein,
The contact panel has touch area, and a plurality of first touch control electrode exists with a plurality of second touch control electrode
It is arranged in a crossed manner in the touch area；
Part and the light-sensitive material of first touch control electrode between two adjacent second touch control electrodes
The surface contact of second side of layer；
First touch control electrode, the photosensitive material layer and the lead electrode layer first touch control electrode with
The region that the photosensitive material layer contacts with each other forms photodiode.
In a possible implementation, the contact panel has touch-surface；The photosensitive material layer is located at institute
State the side of the remote touch-surface of the first touch control electrode；The lead electrode layer is located at the remote of the photosensitive material layer
The side of the touch-surface.
In another possible implementation, the photosensitive material layer includes several light-sensitive materials separated each other
Block, the surface of the second side of each blocks of photosensitive material and first touch control electrode are at adjacent two described second
Contacted with each other between touch control electrode.
In another possible implementation, the lead electrode layer includes a plurality of lead electrode separated each other, often
First side of lead electrode described in bar and the blocks of photosensitive material between two adjacent second touch control electrodes
Surface contacts.
In another possible implementation, a plurality of first touch control electrode is each connected outside the touch area
A touch-control driving signal input；The a plurality of second touch control electrode each connects one outside the touch area and touched
Control sensing signal output end；The light sensing signal that a plurality of leads electrode is each connected outside the touch area is defeated
Go out end.
In another possible implementation, the whole face of photosensitive material layer is set；The whole face of lead electrode layer is set
Put；A plurality of first touch control electrode each connects a touch sense signals output end outside the touch area；It is described
A plurality of second touch control electrode each connects a touch-control driving signal input outside the touch area；The lead electrode
Connect a light sensing signal output end outside the touch area.
In another possible implementation, first touch control electrode of vertical bar shaped is at adjacent two described second
Part between touch control electrode is expanded towards the opposite direction of the second direction and/or the second direction, so that described photosensitive
Part behind the surface of second side of material layer and expansion contacts with each other.
Second aspect, present invention also offers a kind of driving method of any one above-mentioned contact panel, including：
Apply touch-control drive signal to a plurality of first touch control electrode in the first time period of a drive cycle, with
At a plurality of second touch control electrode receive touch-sensing signal, or, in the first time period of a drive cycle to
The a plurality of second touch control electrode applies touch-control drive signal, to receive touch-sensing letter at a plurality of first touch control electrode
Number；
Apply photosensitive drive signal to a plurality of first touch control electrode in the second time period of a drive cycle, with
Light sensing signal is received at the lead electrode layer, or, draw in the second time period of a drive cycle to described
Line electrode layer applies photosensitive drive signal, to receive light sensing signal at a plurality of first touch control electrode；
Wherein, the first time period mutually staggers with second time period in the drive cycle.
In a possible implementation, the photodiode is specially infrared photodiode；The driving side
Method also includes：
Fingerprint recognition is carried out according to the touch-sensing signal；
When recognizing the fingerprint of human body, judge whether to detect the finger of organism according to the light sensing signal
Infrared signature；
When not detecting the infrared signature of finger of organism, the source of the recognized fingerprint of generation is not biology
The alarm signal of body.
The third aspect, present invention also offers a kind of drive device of any one above-mentioned contact panel, including：
First signal applying unit, for electric to a plurality of first touch-control in the first time period of a drive cycle
Pole applies touch-control drive signal, to receive touch-sensing signal at a plurality of second touch control electrode, or, first letter
Number applying unit is used in the first time period of a drive cycle apply touch-control driving to a plurality of second touch control electrode
Signal, to receive touch-sensing signal at a plurality of first touch control electrode；
Secondary signal applying unit, for electric to a plurality of first touch-control in the second time period of a drive cycle
Pole applies photosensitive drive signal, to receive light sensing signal at the lead electrode layer, or, the secondary signal applies
Unit is used to apply photosensitive drive signal to the lead electrode layer in the second time period of a drive cycle, with described
Light sensing signal is received at a plurality of first touch control electrode；
Wherein, the first time period mutually staggers with second time period in the drive cycle.
As shown from the above technical solution, the design of an electrode of photodiode is multiplexed with based on the first touch control electrode,
The contact panel provided can save the installation space and manufacturing process of an electrode of photodiode, compared to integrated meter
Contact panel before the sensitization function of face can only increase photosensitive material layer and the thickness of lead electrode layer is even less, thus can
To realize the lightening of photosensitive contact panel, meet use demand of the contact panel under more application scenarios.
Based on for apply touch-control drive signal and receive touch-sensing signal first time period be used for apply it is photosensitive
The design that the second time period of drive signal and reception light sensing signal mutually staggers in drive cycle, the touch-control provided
The driving method and drive device of panel can coordinate any one above-mentioned contact panel to realize the touch of contact panel at the same time
First touch control electrode is multiplexed with to an electrode of photodiode on the premise of sensing function and light sensing function, realizes sense
Light contact panel it is lightening, meet use demand of the contact panel under more application scenarios.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the set-up mode schematic diagram of touch control electrode in the contact panel that one embodiment of the invention provides；
Fig. 2 is the set-up mode schematic diagram of photosensitive material layer in the contact panel that one embodiment of the invention provides；
Fig. 3 is the set-up mode schematic diagram of lead electrode layer in the contact panel that one embodiment of the invention provides；
Fig. 4 is the A-A ' profiles of contact panel shown in Fig. 3 in one embodiment of the invention；
Fig. 5 is the schematic flow sheet of the preparation method for the contact panel that one embodiment of the invention provides；
Fig. 6 is the schematic flow sheet of the driving method for the contact panel that one embodiment of the invention provides；
Fig. 7 is the inside connection relationship diagram for the contact panel that one embodiment of the invention provides；
Fig. 8 is the inside connection relationship diagram for the contact panel that further embodiment of this invention provides；
Fig. 9 is the A-A ' profiles of contact panel shown in Fig. 3 in further embodiment of this invention；
Figure 10 is the schematic flow sheet of the preparation method for the contact panel that further embodiment of this invention provides；
Figure 11 is the cross-sectional view for the contact panel that further embodiment of this invention provides；
Figure 12 is the set-up mode schematic diagram of touch control electrode in the contact panel that further embodiment of this invention provides；
Figure 13 is the part schematic flow sheet of the driving method for the contact panel that further embodiment of this invention provides；
Figure 14 is the structured flowchart of the drive device for the contact panel that one embodiment of the invention provides；
Figure 15 is the part-structure block diagram of the drive device for the contact panel that further embodiment of this invention provides.
Reference：
10-substrate, the 11-the first touch control electrode, 12-second touch control electrode, 13-photosensitive material layer, 14-lead electricity
Pole layer, the 15-the first insulating barrier, the 16-the second insulating barrier, the 17-the three insulating barrier, A1-touch area, R1-first direction,
R2-second direction, P1-touch-control driving signal input, P2-touch sense signals output end, P3-light sensing signal are defeated
Go out end, U1-shift register cell, INPUT-input, OUTPUT-output end, RESET-reset terminal, CLK1-the first
Clock signal terminal, CLK2-second clock signal end, the clock signals of CLK-first, CLKB-second clock signal, STV-rise
Beginning signal.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of plan structure signal of touch control electrode set-up mode in contact panel in one embodiment of the invention
Figure.As shown in figure 1, the contact panel of the embodiment of the present invention includes a plurality of first touch control electrode 11 of R1 extensions in the first direction
(being only used as example using 8 in Fig. 1) and in a second direction R2 extension a plurality of second touch control electrode 12 (in Fig. 1 only using 9 as
Example), and a plurality of first touch control electrode 11 and a plurality of second touch control electrode 12 are in touch area A1 possessed by contact panel
It is interior arranged in a crossed manner (only with the cross way of orthogonal formula as an example, can also be any in other implementations in figure
It is arranged in a crossed manner under other angles).It should be noted that to make illustrative clarity, it is depicted without removing first in contact panel in Fig. 1
Structure beyond touch control electrode 11 and second touch control electrode 12.It is understood that in the insulation layer structure of suitable thickness
Under interval, above-mentioned a plurality of first touch control electrode 11 can coordinate other external conditions to realize with above-mentioned a plurality of second touch control electrode 12
The touch-sensing of mutual capacitance type.
In addition to above-mentioned first touch control electrode 11 and above-mentioned second touch control electrode 12, the contact panel of the embodiment of the present invention is also
Including photosensitive material layer 13 and lead electrode layer 14.As shown in Fig. 2 the first touch control electrode 11 is in adjacent two the second touch-controls electricity
Part between pole 12 contacts with the surface of the second side of photosensitive material layer 13；As shown in figure 3, on the basis of structure shown in Fig. 2
On, lead electrode layer 14 is arranged on the surface of the first side of photosensitive material layer 13.In Fig. 2 and Fig. 3, vertical paper it is outside one
Side is the first side of photosensitive material layer 13, and the side of vertical paper inwards is the second side of photosensitive material layer.Thus, the first touch-control
Electrode 11, photosensitive material layer 13 and lead electrode layer 14 are in the area that the first touch control electrode 11 contacts with each other with photosensitive material layer 13
Domain forms photodiode.As a kind of example, in figs. 2 and 3, photosensitive material layer 13 by 8 × 8 square shape it is photosensitive
Material block is formed, and 8 lead electrodes that lead electrode layer 14 is extended by R2 in a second direction are formed, and every two adjacent second are touched
One be provided with the surface of first side of all blocks of photosensitive material between control electrode 12 in a lead electrode layer 14 draws
Line electrode, and the surface of the second side of each blocks of photosensitive material and first touch control electrode 11 adjacent two second
Part between touch control electrode 12 contacts with each other.It should be noted that to make illustrative clarity, contact panel is depicted without in Fig. 2
The interior structure in addition to the first touch control electrode 11, second touch control electrode 12 and photosensitive material layer 13, touch surface is depicted without in Fig. 3
Structure in plate in addition to the first touch control electrode 11, second touch control electrode 12, photosensitive material layer 13 and lead electrode layer 14.
It is understood that the formation of photodiode means respectively from the first side and the second side contacts photosensitive material layer
13 touch control electrode 11 of lead electrode layer 14 and first has respectively become one in the positive electrode and negative electrode of photodiode,
And it is clipped in the photosensitive material layer 13 between positive electrode and negative electrode and is then cut with the electric current forward conduction made between two electrodes, reversely
Only, it is required to form photodiode that and the C-V characteristic between two electrodes under the conditions of particular light changes etc.
The characteristic to be had (such as when forming photosensitive material layer 13 using semi-conducting material, the semiconductor between positive electrode and negative electrode
The doping situation of material must be consistent with the structure of the PN junction required by formation photodiode).
It should be noted that the first touch control electrode, second touch control electrode and lead electrode layer in the embodiment of the present invention
Mainly formed by material with good conductivity, such as metal simple-substance, alloy, metallic compound, metal grill (Metal
Mesh), conducting polymer (Conductive Polymer) etc., those skilled in the art can enter according to practical application request
Row selection.Such as in order that contact panel has higher light transmittance, can be by above-mentioned first touch control electrode, the second touch-control electricity
At least one in pole and lead electrode layer is using indium tin oxide semiconductor (ITO), metal grill (Metal Mesh), silver
Nano wire (Silver Nanowires) or conducting polymer (Conductive Polymer) formation.
It should also be noted that, the photodiode described in the embodiment of the present invention generally refers to that two can be applied to
Sensing is irradiated to the device of the intensity of the light of the given wave band on the light-sensitive material of inside in the presence of electric signal on individual electrode
Part, particular type can be chosen by those skilled in the art according to practical application request.
As can be seen that the first touch control electrode in the embodiment of the present invention is on the basis that can be used for realizing touch-sensing function
On be additionally operable to serve as an electrode of photodiode, if thus the contact panel of the embodiment of the present invention can realize touch simultaneously
Sensing function and surface sensitization function, then its combination compared to existing contact panel and photosensor array substrate eliminate light
The installation space and manufacturing process of one electrode of quick diode, and typically need to only increase light compared to original contact panel
The thickness of quick material layer and lead electrode layer (thickness for being much smaller than photosensor array substrate), thus photosensitive touch-control can be realized
Panel it is lightening, meet its use demand under more application scenarios.
It is the A-A ' sections of contact panel shown in Fig. 3 in one embodiment of the invention as one kind more specifically example, Fig. 4
Figure.Referring to Fig. 3 and Fig. 4, the contact panel of the embodiment of the present invention includes substrate 10, lead electrode layer 14, photosensitive material layer 13, the
One insulating barrier 15, a plurality of first touch control electrode 11, the second insulating barrier 16, the insulating barrier of a plurality of second touch control electrode 12 and the 3rd
17.Thus, the upper table of the second insulating barrier 17 of touch-surface possessed by contact panel (front of contact panel) as shown in Figure 4
Face provides；Substrate 10 not shown in Fig. 3 is located at the front of lead electrode layer 14, and the 3rd insulating barrier 17 not shown in Fig. 3 exists
The rear of a plurality of second touch control electrode 12.Specifically, referring to Fig. 5, the touch substrate of the embodiment of the present invention can be by following flow systems
Obtain：
Step 101：Being formed on substrate includes the figure of lead electrode layer.
Wherein, the lead electrode layer includes a plurality of lead electrode (such as shown in Fig. 4) separated each other.A kind of possible
Implementation in, the figure including lead electrode layer can by Primary Conductor material patterning processes (refer mainly to using figure
The photoresist of case goes out the process of required figure as mask etching, similarly hereinafter) formed.
Step 102：Being formed on the lead electrode layer includes the figure of photosensitive material layer, except described including photosensitive material
Region beyond the figure of the bed of material forms the first insulating barrier.
Wherein, the photosensitive material layer includes several blocks of photosensitive material (such as shown in Fig. 2) for separating each other, and described the
The upper surface of one insulating barrier is fair or approximate fair with the upper surface of the photosensitive material layer.In a kind of possible implementation
In, step 102 specifically includes：Form the first intrinsic semiconductor layer for covering the substrate and the lead electrode layer；Utilize figure
The photoresist of case carries out ion implanting, to form the photosensitive material layer as mask to first intrinsic semiconductor layer
The first doped region；Form the second intrinsic semiconductor layer for covering first intrinsic semiconductor layer；Peel off the light as mask
Photoresist layer；By the use of the photoresist of patterning as mask, ion implanting is carried out to second intrinsic semiconductor layer, to be formed
State the second doped region of photosensitive material layer；Peel off the photoresist layer as mask.Thus, nonconducting intrinsic semiconductor forms institute
The first insulating barrier is stated, the upper surface and the upper surface of the photosensitive material layer that can make the first insulating barrier maintain an equal level.Alternatively possible
Implementation in, step 102 specifically includes：Form the photoresist layer for covering the substrate and the lead electrode layer；Pass through
Process including developing and exposing removes the photoresist in the setting area of the photosensitive material layer, and formation bottom-exposed goes out described
The groove of lead electrode layer；The photosensitive material layer is formed in the groove (such as by filling, printing or above-mentioned composition work
Skill is realized) so that the upper surface of photosensitive material layer is approximate with the upper surface of the photoresist layer to maintain an equal level.Thus, the light formed
Photoresist layer forms first insulating barrier.
Step 103：Being formed on first insulating barrier and the photosensitive material layer includes a plurality of first touch control electrode
Figure (such as shown in Fig. 1).
Wherein, the figure including a plurality of first touch control electrode covers the upper surface of the photosensitive material layer.In one kind
In possible implementation, the figure including a plurality of first touch control electrode can be by the patterning processes shape of Primary Conductor material
Into.
Step 104：Form the second insulating barrier for covering a plurality of first touch control electrode and first insulating barrier.
In a kind of possible implementation, second insulating barrier can by primary insulation material (such as photoresist, oxidation
Silicon, silicon nitride etc.) deposition or coating processes formed.
Step 105：Being formed on second insulating barrier includes the figure of a plurality of second touch control electrode.
Wherein, a plurality of second touch control electrode and a plurality of first touch control electrode are arranged in a crossed manner in touch area,
The lead electrode and the blocks of photosensitive material are respectively positioned between two adjacent second touch control electrodes (such as Fig. 3 institutes
Show).In a kind of possible implementation, the figure including a plurality of first touch control electrode can be by the structure of Primary Conductor material
Figure technique is formed.
Step 106：Form the 3rd insulating barrier for covering second insulating barrier and a plurality of second touch control electrode.
In a kind of possible implementation, the 3rd insulating barrier can by primary insulation material (such as photoresist, oxidation
Silicon, silicon nitride etc.) deposition or coating processes formed.
It will be appreciated that the thickness of the second insulating barrier 16 and the thickness of the first touch control electrode 11 determine in technological parameter
Spacing between one touch control electrode 11 and second touch control electrode 12.Touched what finger touched that the 3rd insulating barrier 17 provided
When touching surface, the appropriate circuit structure that the first touch control electrode 11 and second touch control electrode 12 are connected is coordinated to realize mutual tolerance
Formula touch-sensing.In addition, the appropriate circuit structure connected between the first touch control electrode 11 and lead electrode can pass through
The size for detecting the voltage in the size or one electrode for the electric current for flowing through photodiode obtains photodiode reception
The intensity of illumination of the light of the corresponding wave band arrived, so as to realize that the surface of contact panel is photosensitive.
It can be seen that the first touch control electrode of an electrode of photodiode is multiplexed with the embodiment of the present invention
It may need to load certain electric signal when realizing touch-sensing and realizing light sensing, and the obvious nothing of the first touch control electrode
Method loads two different electric signals simultaneously, so if the must be made by being realized while touch-sensing function and surface sensitization function
One touch control electrode loads two different electric signals at any one time, then such technical scheme can not be realized.Therefore, it is of the invention
The contact panel that embodiment provides is applied to period and the period nonoverlapping scene of light sensing of touch-sensing.
As a kind of touch-sensing function that can be realized and the example of surface sensitization function simultaneously, corresponding to shown in Fig. 4
The contact panel gone out, Fig. 6 are the schematic flow sheets of the driving method of the contact panel.Referring to Fig. 6, the driving method includes：
Step 201：Apply touch-control to a plurality of first touch control electrode in the first time period of a drive cycle to drive
Dynamic signal, to receive touch-sensing signal at a plurality of second touch control electrode.
Step 202：Apply photosensitive drive to a plurality of first touch control electrode in the second time period of a drive cycle
Dynamic signal, to receive light sensing signal at the lead electrode layer；
Wherein, the first time period mutually staggers with second time period in the drive cycle.A kind of possible
In implementation, the total length of a drive cycle is 200ms (millisecond, millisecond), in each drive cycle before
150ms part is the first time period, in each drive cycle after 50ms part be the second time period.
Thus, the driving method of the embodiment of the present invention by the period for being used for touch-sensing in drive cycle and is used for light
The period of sensing separates, thus effectively prevent the first touch control electrode while load the situation of two different electric signals, i.e.,
Confirm the technical scheme of the contact panel of any of the above-described kind of electrode that the first touch control electrode is multiplexed with to photodiode
The embodiment that presence can be realized.Application based on the touch-control drive signal in first time period in each drive cycle and
The reception of touch-sensing signal, the setting of above-mentioned first touch control electrode and above-mentioned second touch control electrode can be coordinated to realize touch surface
The touch-sensing function of plate；And application and light sensing letter based on the photosensitive drive signal in first time period in drive cycle
Number reception, the setting of above-mentioned photodiode can be coordinated to realize the light sensing function of contact panel.
As can be seen that based on for applying touch-control drive signal and receiving the first time period of touch-sensing signal with being used for
Apply the design that the second time period of photosensitive drive signal and reception light sensing signal mutually staggers in drive cycle, this hair
The driving method and drive device of the contact panel of bright embodiment can coordinate the structure of contact panel illustrated in fig. 4 at the same time
Realize contact panel touch-sensing function and light sensing function on the premise of the first touch control electrode is multiplexed with photosensitive two pole
One electrode of pipe, realizes the lightening of photosensitive contact panel, meets use demand of the contact panel under more application scenarios.
Specific to contact panel illustrated in fig. 4, as shown in fig. 7, in a kind of possible implementation, above-mentioned each signal
Application and reception can specifically by inside contact panel following structures realize：A plurality of first touch control electrode 11 is respective
A touch-control driving signal input P1 for connecting outside the touch area A1 (such as divide in Fig. 7 by 8 the first touch control electrodes 11
Lian Jie be in 8 touch-control driving signal input P1 one)；The a plurality of second touch control electrode 12 each connects the touch-control
Outside the A1 of region a touch sense signals output end P2 (such as in Fig. 79 second touch control electrodes 12 connect respectively 9 touch
Control one in sensing signal output end P2)；The a plurality of leads electrode each connects one outside the touch area A1
Light sensing signal output end P3 (such as 8 lead electrodes connect in 8 light sensing signal output end P3 respectively in Fig. 7
One).Thus, in above-mentioned steps 201, at the multiple touch-control driving signal input P1 of extroversion in touch area A1
Touch-control drive signal is applied in a plurality of first touch control electrode 11 by input touch-control drive signal；Especially by touch area
The electric signal exported at multiple touch sense signals output end P2 is gathered outside A1 and receives touch-sensing signal, is touched with realizing
Sensing function.In above-mentioned steps 202, especially by defeated at the multiple touch-control driving signal input P1 of extroversion in touch area A1
Enter photosensitive drive signal and photosensitive drive signal is applied to (i.e. touch-control driving signal input in a plurality of first touch control electrode 11
P1 is multiplexed with photosensitive driving signal input)；Especially by being gathered outside the A1 of touch area, multiple light sensing signals are defeated
Go out and hold the electric signal exported at P3 to receive light sensing signal.As a kind of example, all lead electrodes in touch area
The first level is uniformly set to when second time period starts, a plurality of first touch control electrode 11 receives successively in second time period
Second electrical level, so that during the first touch control electrode of any bar 11 receives second electrical level, with the first touch control electrode of this 11
Cut-off state is operated under the biasing of first level and second electrical level at both ends for the photodiode of an electrode, but wherein
Receive specific band light irradiation photodiode inside can then produce electric current make its connect lead electrode at by
First level begins to ramp up or declined.Thus, when the first touch control electrode of this 11 no longer receives second electrical level, can gather
Now leaded electrode voltage, as all photodiodes corresponding to the first touch control electrode of this 11 light sense
Signal.Connect it will be appreciated that the amplitude of the level of voltage deviation first on lead electrode represents corresponding photodiode
The intensity of illumination of the light irradiation of the characteristics of receiving wave band.So that, can be from the light received at the end of second time period
The intensity of illumination of the specific band light in touch area at each blocks of photosensitive material position is got in sensing signal, i.e.,
The surface for realizing contact panel is photosensitive.
It should be noted that in the driving method of the contact panel provided, above-mentioned steps 201 can not shown in accompanying drawing
" the step 203 gone out：Apply touch-control driving letter to a plurality of second touch control electrode in the first time period of a drive cycle
Number, to receive touch-sensing signal at a plurality of first touch control electrode " replace, so as to realize touch surface in another way
(the touch-control drive signal that now a plurality of first touch control electrode is each connected outside touch area is defeated for the touch-sensing function of plate
Enter end, a plurality of second touch control electrode each connects a touch-sensing signal output end outside touch area)；Above-mentioned steps
202 can be by " the step 204 not shown in accompanying drawing：To the lead electrode layer in the second time period of a drive cycle
Apply photosensitive drive signal, to receive light sensing signal at a plurality of first touch control electrode " replace, so as to another kind
Mode realizes surface sensitization function (the touch-control driving signal input of now the first touch control electrode connection or the touch of contact panel
Sensing signal output end is multiplexed with light sensing signal output end, and a plurality of leads electrode each connects one outside touch area
Individual photosensitive driving signal input).It should be noted that the first touch control electrode is easy during touch-sensing signal is received
Larger voltage pulsation is produced, this may have undesirable effect to the characteristic for the photosensitive material layer that it is contacted, therefore still excellent
Choosing receives touch-sensing signal using second touch control electrode.It is additionally, since photosensitive drive signal in some implementations and touches
Control drive signal can have same or analogous waveform, therefore apply photosensitive driving in different time sections to the first touch control electrode
The simplification for being designed with the generating process beneficial to photosensitive drive signal Yu touch-control drive signal of signal and touch-control drive signal.
It is understood that the contact panel provided is in any possible implementation, the first touch control electrode
The quantity of quantity, the quantity of second touch control electrode and lead electrode can be according to the spatial discrimination of required touch-sensing
Rate and the spatial resolution of light sensing are configured, and can typically reach hundreds of or thousands of quantity in actual applications
Level.However, it can be seen that under implementation as shown in Figure 7, each the first touch control electrode 11 must be separately through one
Bar connecting line is connected to a touch-control driving signal input P1, i.e. used above-mentioned connecting line and above-mentioned in actual applications
The quantity of touch-control driving signal input may also reach hundreds of or thousands of orders of magnitude, and this is empty to the wiring on contact panel
Between reduction and the reduction of port number of connected chip all cause limitation largely.
For this problem, there is provided the possible implementation of another contact panel and its driving method.Such as Fig. 8 institutes
Show, on the basis of structure shown in Fig. 3, Fig. 4, what is set in addition to including above-mentioned touch area touches the contact panel provided
Control outside driving signal input P1, include being located at outside touch area multi-stage shift register unit U1 (in Fig. 8 only with
8 are used as example)；Shift register cell U1 output end OUTPUT each connects one outside touch area described in per one-level
The individual touch-control driving signal input P1.In a kind of specific example, there is input per one-level shift register cell U1
Hold INPUT, output end OUTPUT, reset terminal RESET, the first clock signal terminal CLK1 and second clock signal end CLK2；Except
The input INPUT connection upper level shift register cells U1 of any level shift register cell U1 outside one-level output
OUTPUT is held, the reset terminal RESET connections next stage displacement of any level shift register cell U1 except the last is posted
Storage unit U1 output end OUTPUT.One connected respectively in the first clock signal terminal CLK1 and second clock signal end CLK2
The first clock signal clk to inversion signal each other and under second clock signal CLKB driving, per one-level shift register list
First U1 starts to export in output end OUTPUT after can switching to half of clock cycle after second electrical level at input INPUT
Second electrical level, and stop at output end after half of clock cycle after second electrical level can be switched at reset terminal RESET
OUTPUT exports second electrical level.Thus, it is only necessary to which the starting at first order shift register cell U1 input INPUT is provided
Signal STV, afterbody shift register cell U1 reset terminal RESET at signal and above-mentioned first clock signal clk
With second clock signal CLKB, it is possible to be that a plurality of first touch control electrode 11 provides touch-control driving letter in above-mentioned first time period
Number, second electrical level is provided successively to a plurality of first touch control electrode 11 in above-mentioned second time period.With the implementation shown in Fig. 7
Compare, can be greatly reduced on the basis of original function is kept used in connecting line and touch-control driving signal input
Quantity, be advantageous to the reduction of wiring space on contact panel and the reduction of the port number of connected chip.
It will be appreciated that in any one possible implementation of contact panel provided by the invention, based on touch-control
Panel includes being located at the multi-stage shift register unit outside touch area, and the output end per one-level shift register cell is each
The design of a touch-control driving signal input outside touch area is connected, can be with the basis of original function is kept
The quantity of connecting line and touch-control driving signal input used in being greatly reduced, is advantageous to the wiring space on contact panel
Reduction and connected chip port number reduction.Certainly, those skilled in the art in actual applications can basis
Actual demand voluntarily chooses whether to use this design.
In addition, the structure based on touch base plate illustrated in fig. 3, also exists in addition to the implementation corresponding to Fig. 4
Other possible implementations.As shown in figure 9, the contact panel of the embodiment of the present invention includes substrate 10, a plurality of second touch-control electricity
Pole 12, the first insulating barrier 15, a plurality of first touch control electrode 11, photosensitive material layer 13, the second insulating barrier 16, lead electrode layer 14,
And the 3rd insulating barrier 17.Thus, touch-surface possessed by contact panel (front of contact panel) as shown in Figure 9 second
The upper surface of insulating barrier 17 provides；Substrate 10 not shown in Fig. 3 is located at the rear of a plurality of second touch control electrode 12, in Fig. 3 not
The 3rd insulating barrier 17 shown is located at the front of lead electrode layer 14.Specifically, referring to Figure 10, the touch base of the embodiment of the present invention
Plate can be made to obtain by following flows：
Step 301：Being formed on substrate includes the figure (such as shown in Fig. 1) of a plurality of second touch control electrode.
In a kind of possible implementation, the figure including a plurality of first touch control electrode can be by Primary Conductor material
Patterning processes formed.
Step 302：Form the first of the figure of the upper surface for covering the substrate and a plurality of second touch control electrode
Insulating barrier.
In a kind of possible implementation, the 3rd insulating barrier can by primary insulation material (such as photoresist, oxidation
Silicon, silicon nitride etc.) deposition or coating processes formed.
Step 303：Being formed on first insulating barrier includes the figure of a plurality of first touch control electrode.
Wherein, a plurality of first touch control electrode and a plurality of second touch control electrode are in touch-control possessed by contact panel
It is arranged in a crossed manner in region.In a kind of possible implementation, the figure including a plurality of first touch control electrode can be by once
The patterning processes of conductor material are formed.
Step 304：Being formed in a plurality of first touch control electrode includes the figure of photosensitive material layer, except it is described including
Region beyond the figure of photosensitive material layer forms the second insulating barrier.
Wherein, the photosensitive material layer includes the blocks of photosensitive material that several are separated each other, the equal position of blocks of photosensitive material
Between two adjacent second touch control electrodes (such as shown in Fig. 2)；The upper surface of second insulating barrier and the light
The upper surface of quick material layer maintains an equal level or approximation maintains an equal level.In a kind of possible implementation, step 102 specifically includes：Formation is covered
Cover a plurality of first touch control electrode and the first intrinsic semiconductor layer of the first insulating barrier；By the use of patterning photoresist as covering
Film, ion implanting is carried out to first intrinsic semiconductor layer, to form the first doped region of the photosensitive material layer；Formation is covered
Cover the second intrinsic semiconductor layer of first intrinsic semiconductor layer；Peel off the photoresist layer as mask；Utilize patterning
Photoresist carries out ion implanting, to form the second of the photosensitive material layer as mask to second intrinsic semiconductor layer
Doped region；Peel off the photoresist layer as mask.Thus, nonconducting intrinsic semiconductor forms second insulating barrier, can make
The upper surface of second insulating barrier and the upper surface of the photosensitive material layer maintain an equal level.In alternatively possible implementation, step
102 specifically include：Form the photoresist layer for covering a plurality of first touch control electrode and the first insulating barrier；By including development and
The process of exposure removes the photoresist in the setting area of the photosensitive material layer, forms bottom-exposed and goes out the first touch-control electricity
The groove of pole；Formed in the groove photosensitive material layer (such as by fill, print or above-mentioned patterning processes realize),
Maintain an equal level so that the upper surface of photosensitive material layer is approximate with the upper surface of the photoresist layer.Thus, the photoresist layer shape formed
Into second insulating barrier.
Step 305：Being formed on second insulating barrier includes the figure of lead electrode layer；Wherein, the lead electrode
Layer includes a plurality of lead electrode separated each other.
The lead electrode is respectively positioned between two adjacent second touch control electrodes (as shown in Figure 4).Can in one kind
In the implementation of energy, the figure including lead electrode layer can be formed by the patterning processes of Primary Conductor material.
Step 306：Form the 3rd insulating barrier for covering second insulating barrier and the lead electrode layer.
In a kind of possible implementation, the 3rd insulating barrier can by primary insulation material (such as photoresist, oxidation
Silicon, silicon nitride etc.) deposition or coating processes formed.
It will be appreciated that the thickness of the first insulating barrier 15 and the thickness of second touch control electrode 12 determine in technological parameter
Spacing between one touch control electrode 11 and second touch control electrode 12.Touched what finger touched that the 3rd insulating barrier 17 provided
When touching surface, the appropriate circuit structure that the first touch control electrode 11 and second touch control electrode 12 are connected is coordinated to realize mutual tolerance
Formula touch-sensing.In addition, the appropriate circuit structure connected between the first touch control electrode 11 and lead electrode can pass through
The size for detecting the voltage in the size or one electrode for the electric current for flowing through photodiode obtains photodiode reception
The intensity of illumination of the light of the corresponding wave band arrived, so as to realize that the surface of contact panel is photosensitive.
However, by comparison diagram 4 and Fig. 9 cross-section structure, due to photosensitive material layer 13 in Fig. 4 and lead electrode layer
14 are respectively positioned on the first touch control electrode 11 and side of the second touch control electrode 12 away from touch-surface, therefore are realizing touch-sensing
During influenceed by the electromagnetic interference from photosensitive material layer 13 and lead electrode layer 14 it is relatively small.There is provided in the present invention
Contact panel any one possible implementation in, first touch control electrode is located at based on the photosensitive material layer
Side away from the touch-surface, and the lead electrode layer are located at the remote touch-surface of the photosensitive material layer
Side design, it is possible to reduce the lead electrode layer mainly formed by conductor is the condenser type realized two touch control electrodes
Electromagnetic interference caused by touch-control, lift the reliability of product.Certainly, those skilled in the art in actual applications can basis
Actual demand voluntarily chooses whether to use this design.
On the other hand, the concrete structure of photosensitive material layer can also in the presence of other in addition to implementation illustrated in fig. 2
Others yet be present in fact in addition to implementation illustrated in fig. 3 in the implementation of energy, the concrete structure of lead electrode layer
Existing mode.As shown in figure 11, the section shown in Figure 11 relative to the location of contact panel and the section shown in Fig. 4 relative to
The location of contact panel is corresponding.Unlike structure shown in Fig. 4, photosensitive material layer 13 and lead electrode layer in this example
14 expansion faces set (Rotating fields i.e. as a whole face everywhere continuous, occupying certain thickness range of contact panel), so as to
Eliminate the first insulating barrier 15.For the structure shown in Fig. 4, contact panel shown in Figure 11 is by the He of above-mentioned steps 101
Step 102 is reduced to be formed respectively the lead electrode layer in a whole face and forms photosensitive material layer (such as the successively deposition N in a whole face
The semiconductor layer of type doping and the semiconductor layer of p-type doping), thus can have simpler Making programme；Moreover, whole face is set
The lead electrode layer put can shield the electromagnetic interference of both sides, improve the reliability of product.But with the touch-control base shown in Figure 11
Plate is compared, and the first insulating barrier 15 easily all has than photosensitive material layer 13 and lead electrode layer 14 in the touch base plate shown in Fig. 4
Higher light transmittance, therefore higher light transmittance can be realized；It is additionally, since continuous structure of the lead electrode layer as a whole face
It can only at any time apply or gather a kind of electric signal, therefore the touch base plate shown in Fig. 4 is compared to the touch-control shown in Figure 11
Substrate is all relatively small by being limited in the application of photosensitive drive signal and the reception of light sensing signal, can realize more
The light sensing of high spatial resolution.For example, (draw when the photosensitive drive signal in second time period is applied on lead electrode layer
A photosensitive driving signal input outside line electrode layer connection touch area, the touch-control driving that the first touch control electrode is connected
Signal input part or touch-sensing signal output end are multiplexed with light sensing signal output end) when, every first touch control electrode
All contacted photosensitive material layers caused electric current under light illumination can be received, therefore the light in second direction can be obtained
Strong distribution.And the photosensitive drive signal in second time period is applied on a plurality of first touch control electrode line (lead electrode layer company
Connect a light sensing signal output end outside touch area, the touch-control driving signal input that the first touch control electrode is connected
Or touch-sensing signal output end is multiplexed with photosensitive driving signal input) when, it can with timesharing obtain each touch-control electricity
The light intensity summation that extremely corresponding all photodiodes receive, therefore can equally obtain the light intensity in second direction point
Cloth.Comparatively speaking, former mode can utilize a plurality of first touch control electrode while gather the telecommunications of all photodiodes
Number, therefore it is more beneficial for compared to latter approach the shortening of second time period and drive cycle.
It will be appreciated that in any one possible implementation of contact panel provided by the invention, based on photosensitive
Material layer includes several blocks of photosensitive material separated each other, and the surface of the second side of each blocks of photosensitive material is touched with one first
The design that control electrode contacts with each other between two adjacent second touch control electrodes, can increase light transmittance, can also reduce not
Photodiode with opening position interferes.Certainly, those skilled in the art in actual applications can be according to actual need
Ask and voluntarily choose whether to use this design.
It will be appreciated that in any one possible implementation of contact panel provided by the invention, based on lead
Electrode layer includes a plurality of lead electrode separated each other, every lead electrode and between two adjacent second touch control electrodes
Blocks of photosensitive material the first side surface contact design, it is possible to reduce the lead electrode layer mainly formed by conductor is to two
Electromagnetic interference caused by the capacitance touching control realized between touch control electrode, lift the reliability of product.Certainly, art technology
Personnel can voluntarily choose whether to use this design in actual applications according to the actual requirements.
In addition, Figure 12 is the set-up mode schematic diagram of touch control electrode in contact panel in further embodiment of this invention.Pass through
Comparison diagram 1 and Figure 12 understand that the first touch control electrode 11 of vertical bar shaped illustrated in fig. 12 is in two adjacent second touch-controls
Part between electrode 12 is expanded towards second direction R2 and second direction R2 opposite direction, illustrated in fig. 1 so as to form
First touch control electrode 11；And from figure 2 it can be seen that the surface of the second side of photosensitive material layer 13 and the first touch control electrode 11
The part after expansion between two adjacent second touch control electrodes 12 contacts with each other.It will be appreciated that shown in Fig. 1
The shape of first touch control electrode 11 is more beneficial for the first touch-control for the shape compared to the first touch control electrode 11 shown in Figure 12
The increase of mutual capacitance between electrode and the second touch control capacitance, while be more beneficial for increasing each photodiode institute light sensing
Spatial dimension, thus can realize that more excellent touch-sensing and surface are photosensitive.Certainly, it is above-mentioned to open up to reach identical purpose
The direction of exhibition can also be single second direction in addition to it can be second direction R2 and second direction R2 opposite direction
R2, or individually second direction R2 opposite direction.
It will be appreciated that in any one possible implementation of contact panel provided by the invention, based on vertical bar
Part of first touch control electrode of shape between two articles of adjacent second touch control electrodes is towards the opposite direction of second direction and/or
Two directions are expanded, so that the design that the part after the surface of the second side of photosensitive material layer and expansion contacts with each other, can increase
Mutual capacitance between first touch control electrode and the second touch control capacitance, the sky of each photodiode institute light sensing can also be increased
Between scope, so as to realize that more excellent touch-sensing and surface are photosensitive.Certainly, those skilled in the art in actual applications can root
Voluntarily choose whether to use this design according to actual demand.
Based on same inventive concept, present invention also offers a kind of preparation method of any one above-mentioned contact panel,
This method comprises the steps：
Being formed on substrate includes photosensitive material layer, lead electrode layer, a plurality of first touch control electrode and a plurality of second tactile
Control the structure of electrode.
Specifically, the Making programme shown in Fig. 5 and Figure 10 Making programme may each be a kind of specific implementation of the step
Mode, and with reference to it is described herein and Making programme can obtain the Making programme of contact panel under other structures, herein no longer
Repeat.
The design of an electrode of photodiode, the system of the contact panel provided are provided based on the first touch control electrode
The installation space and manufacturing process of an electrode of photodiode can be saved by making method, compared to integrated surface sensitization function
Contact panel before can only increase photosensitive material layer and the thickness of lead electrode layer is even less, thus can realize photosensitive
Contact panel it is lightening, meet use demand of the contact panel under more application scenarios.
In addition, as a kind of concrete application example being integrated to surface sensitization function in contact panel, any of the above-described
On the basis of the driving method of kind contact panel, in addition to following step as shown in fig. 13 that：
Step 401：Fingerprint recognition is carried out according to touch-sensing signal.
Step 402：When recognizing the fingerprint of human body, judged whether to detect the hand of organism according to light sensing signal
The infrared signature of finger.
Step 403：When not detecting the infrared signature of finger of organism, the source of the recognized fingerprint of generation
It is not the alarm signal of organism.
Wherein, the photodiode is specially infrared photodiode.
Specifically, when there is infrared light from the back side illuminaton of contact panel to the finger for carrying out touch action, finger
The intensity for the infrared light that surface is reflected can fluctuate up and down with pulse beat.Thus, it is possible to the infrared light sensed is existed
Fluctuating range exceedes the infrared signature that certain limit is arranged to the finger of organism up and down in a period of time, so as to carry out fingerprint
The source that recognized fingerprint can be gone out during identification with effective detection is not the situation of organism, strengthens the safety of fingerprint recognition
Property.Certainly, according to the characteristic of the infrared light reflection on human finger surface, the finger of other kinds of organism can also be set
Infrared signature, the embodiment of the present invention are without limitation.
Corresponding to the driving method of any of the above-described kind of contact panel, present invention also offers any one a kind of above-mentioned touch-control
The drive device of panel, referring to Figure 14, the drive device includes：
First signal applying unit 31, in the first time period of a drive cycle to a plurality of first touch-control
Electrode applies touch-control drive signal, to receive touch-sensing signal at a plurality of second touch control electrode, or, described first
Signal applying unit 31 is used in the first time period of a drive cycle apply touch-control to a plurality of second touch control electrode
Drive signal, to receive touch-sensing signal at a plurality of first touch control electrode；
Secondary signal applying unit 32, in the second time period of a drive cycle to a plurality of first touch-control
Electrode applies photosensitive drive signal, to receive light sensing signal at the lead electrode layer, or, the secondary signal is applied
Add unit 31 to be used to apply photosensitive drive signal to the lead electrode layer in the second time period of a drive cycle, with
Light sensing signal is received at a plurality of first touch control electrode；
Wherein, the first time period mutually staggers with second time period in the drive cycle.
Specifically, the specific optional working method of the first signal applying unit 31 and secondary signal applying unit 32 is upper
State and provided in the description of driving method, do not repeated herein.It is understood that the application of signal represents corresponding units with receiving
With the annexation of corresponding construction in contact panel, the circuit function that corresponding units are implemented is also illustrated.Can at some
Can implementation in, above-mentioned drive device can by such as digital circuit or the microcomputer comprising processor realize.
As can be seen that based on for applying touch-control drive signal and receiving the first time period of touch-sensing signal with being used for
Apply the design that the second time period of photosensitive drive signal and reception light sensing signal mutually staggers in drive cycle, carried
The driving method of the contact panel of confession can coordinate any one above-mentioned contact panel to realize the touch sense of contact panel at the same time
First touch control electrode is multiplexed with to an electrode of photodiode on the premise of brake and light sensing function, realized photosensitive
Contact panel it is lightening, meet use demand of the contact panel under more application scenarios.
Corresponding to the flow of the driving method shown in above-mentioned Figure 13, in a possible realization of the drive device provided
In mode, the photodiode is specially infrared photodiode；The drive device also includes as shown in figure 15 following
Structure：
Recognition unit 33, for carrying out fingerprint recognition according to the touch-sensing signal；
Judging unit 34, for when the recognition unit 33 recognizes the fingerprint of human body, being sensed and being believed according to the light
Number judge whether to detect the infrared signature of the finger of organism；
Generation unit 35, for when judging unit 34 judges not detect the infrared signature of the finger of organism, giving birth to
It is not the alarm signal of organism into the source of the fingerprint recognized.
It will be appreciated that the drive device of the embodiment of the present invention by such as digital circuit or can include the miniature of processor
Computer is realized.
Specifically, when there is infrared light from the back side illuminaton of contact panel to the finger for carrying out touch action, finger
The intensity for the infrared light that surface is reflected can fluctuate up and down with pulse beat.Thus, it is possible to the infrared light sensed is existed
Fluctuating range exceedes the infrared signature that certain limit is arranged to the finger of organism up and down in a period of time, so as to carry out fingerprint
The source that recognized fingerprint can be gone out during identification with effective detection is not the situation of organism, strengthens the safety of fingerprint recognition
Property.Certainly, according to the characteristic of the infrared light reflection on human finger surface, the finger of other kinds of organism can also be set
Infrared signature, the embodiment of the present invention are without limitation.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of aobvious including any of the above-described kind of contact panel
Showing device, the display device can be：Mobile phone, tablet personal computer, television set, display, notebook computer, DPF, navigation
Any product or part with display function such as instrument.In a kind of possible implementation, the display device includes infrared light
Backlight, to coordinate above-mentioned driving method or drive device to realize that the source of above-mentioned recognized fingerprint is not organism
Effective detection of situation.
It is multiplexed with the design of an electrode of photodiode based on the first touch control electrode, the display device provided can be with
The installation space and manufacturing process of an electrode of photodiode are saved, can only be increased compared to original display device photosensitive
The thickness of material layer and lead electrode layer is even less, thus can realize the frivolous of the display device with surface sensitization function
Change, it is possessed more colourful functional experience on the basis of existing display device.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of contact panel, it is characterised in that the contact panel includes photosensitive material layer, is arranged on the photosensitive material layer
The first side surface on lead electrode layer, a plurality of first touch control electrode extended in a first direction, and in a second direction
The a plurality of second touch control electrode of extension；Wherein,
The contact panel has touch area, and a plurality of first touch control electrode is with a plurality of second touch control electrode described
It is arranged in a crossed manner in touch area；
Part and the photosensitive material layer of first touch control electrode between two adjacent second touch control electrodes
The surface contact of second side；
First touch control electrode, the photosensitive material layer and the lead electrode layer first touch control electrode with it is described
Region that photosensitive material layer contacts with each other forms photodiode, the positive electrode and negative electrode of the photodiode be respectively with
One in first touch control electrode of the photosensitive material layer contact and the lead electrode layer contacted with the photosensitive material layer.
2. contact panel according to claim 1, it is characterised in that the contact panel has touch-surface；The light
Quick material layer is located at the side of the remote touch-surface of first touch control electrode；The lead electrode layer is located at the light
The side of the remote touch-surface of quick material layer.
3. contact panel according to claim 1 or 2, it is characterised in that the photosensitive material layer includes several each other
The blocks of photosensitive material of separation, the surface of the second side of each blocks of photosensitive material is with first touch control electrode adjacent
Two second touch control electrodes between contact with each other.
4. contact panel according to claim 3, it is characterised in that the lead electrode layer includes a plurality of separating each other
Lead electrode, every lead electrode and the blocks of photosensitive material between two adjacent second touch control electrodes
The first side surface contact.
5. contact panel according to claim 4, it is characterised in that described in a plurality of first touch control electrode each connects
A touch-control driving signal input outside touch area；The a plurality of second touch control electrode each connects the touch area
Outside a touch sense signals output end；The a plurality of leads electrode each connects a light outside the touch area
Line sensing signal output end.
6. contact panel according to claim 1 or 2, it is characterised in that the whole face of photosensitive material layer is set；It is described to draw
The whole face of line electrode layer is set；A plurality of first touch control electrode each connects the touch-control sensing letter outside the touch area
Number output end；The a plurality of second touch control electrode each connects the touch-control drive signal input outside the touch area
End；The lead electrode connects a light sensing signal output end outside the touch area.
7. contact panel according to claim 1 or 2, it is characterised in that first touch control electrode of vertical bar shaped is in phase
Opened up towards the opposite direction of the second direction and/or the second direction part between two adjacent second touch control electrodes
Exhibition, so that the part after the surface of the second side of the photosensitive material layer and expansion contacts with each other.
A kind of 8. driving method of contact panel as any one of claim 1 to 7, it is characterised in that including：
Apply touch-control drive signal to a plurality of first touch control electrode in the first time period of a drive cycle, with institute
Reception touch-sensing signal at a plurality of second touch control electrode is stated, or, to described in the first time period of a drive cycle
A plurality of second touch control electrode applies touch-control drive signal, to receive touch-sensing signal at a plurality of first touch control electrode；
Apply photosensitive drive signal to a plurality of first touch control electrode in the second time period of a drive cycle, with institute
Reception light sensing signal at lead electrode layer is stated, or, to lead electricity in the second time period of a drive cycle
Pole layer applies photosensitive drive signal, to receive light sensing signal at a plurality of first touch control electrode；
Wherein, the first time period mutually staggers with second time period in the drive cycle.
9. driving method according to claim 8, it is characterised in that the photodiode is specially infrared photosensitive two pole
Pipe；The driving method also includes：
Fingerprint recognition is carried out according to the touch-sensing signal；
When recognizing the fingerprint of human body, judge whether to detect the infrared of the finger of organism according to the light sensing signal
Feature；
When not detecting the infrared signature of finger of organism, the source of the recognized fingerprint of generation is not organism
Alarm signal.
A kind of 10. drive device of contact panel as any one of claim 1 to 7, it is characterised in that including：
First signal applying unit, for being applied in the first time period of a drive cycle to a plurality of first touch control electrode
Add touch-control drive signal, to receive touch-sensing signal at a plurality of second touch control electrode, or, first signal is applied
Unit is added to be used in the first time period of a drive cycle apply touch-control drive signal to a plurality of second touch control electrode,
To receive touch-sensing signal at a plurality of first touch control electrode；
Secondary signal applying unit, for being applied in the second time period of a drive cycle to a plurality of first touch control electrode
Loading optical drive signal, to receive light sensing signal at the lead electrode layer, or, the secondary signal applying unit
For applying photosensitive drive signal to the lead electrode layer in the second time period of a drive cycle, with described a plurality of
Light sensing signal is received at first touch control electrode；
Wherein, the first time period mutually staggers with second time period in the drive cycle.
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| CN107346196B (en) * | 2017-06-08 | 2020-04-07 | 深圳信炜科技有限公司 | Capacitive sensing device and electronic equipment |
| CN108304096B (en) | 2018-03-15 | 2020-12-01 | 京东方科技集团股份有限公司 | Touch control assembly and preparation method thereof, touch control display device and method for preventing wet and mistaken touch |
| CN111103959B (en) * | 2019-12-20 | 2021-05-18 | 展讯通信（上海）有限公司 | Register resetting system and chip |
| CN113296625A (en) * | 2020-02-24 | 2021-08-24 | 高尔科技股份有限公司 | Double-sided photo-thermal reaction selection lock and manufacturing method thereof |
| CN111766974A (en) | 2020-06-12 | 2020-10-13 | 惠州市华星光电技术有限公司 | Touch panel and touch display device |
| CN112947787A (en) * | 2021-02-23 | 2021-06-11 | 北京京东方显示技术有限公司 | Touch panel, display device, display system and touch method |
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| CN201600673U (en) * | 2010-01-27 | 2010-10-06 | 比亚迪股份有限公司 | Photoinductive capacitive touch screen |
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| CN102043538A (en) * | 2009-10-17 | 2011-05-04 | 比亚迪股份有限公司 | Light-induced touch screen and detection system thereof |
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