CN105718118B - Array substrate, touch-control display panel and touch-control pressure detection method, display device - Google Patents
Array substrate, touch-control display panel and touch-control pressure detection method, display device Download PDFInfo
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- CN105718118B CN105718118B CN201610263974.8A CN201610263974A CN105718118B CN 105718118 B CN105718118 B CN 105718118B CN 201610263974 A CN201610263974 A CN 201610263974A CN 105718118 B CN105718118 B CN 105718118B
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- 239000000758 substrate Substances 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 75
- 238000000034 method Methods 0.000 claims description 14
- 239000003086 colorant Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04105—Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
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- Theoretical Computer Science (AREA)
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- Position Input By Displaying (AREA)
Abstract
The embodiment of the present invention provides a kind of array substrate, touch-control display panel and touch-control pressure detection method, display device, is related to field of display technology, when solving to detect touch-control pressure using pressure sensitive capacitor, the low problem of detection accuracy.The array substrate includes multiple sub-pixes and the light sensitive component in sub-pix.The scan signal line and reading signal wire that light sensitive component is separately connected first voltage end and transverse and longitudinal is intersected, for under the control at scan signal line and first voltage end, light sensitive component is opened, to detect by photoelectric conversion to touch-control pressure, and will test result by reading signal wire output.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of array substrates, touch-control display panel and the inspection of touch-control pressure
Survey method, display device.
Background technique
Touch control display apparatus is increasingly used in the field of display technology of every profession and trade, when user is touched by finger
When the touch screen of touch control display apparatus, touch control display apparatus can perceive the position of touch and hand of finger in touch screen plane
The touch pressure of finger so that user only pass through touch touch screen on pattern or text can be achieved with human-computer interaction.
Touch control display apparatus in the prior art, such as mobile phone is as shown in Figure 1, including mobile phone center 11 and being installed on institute
State the touch screen 10 on mobile phone center 11.In order to which the touch pressure to finger detects, above-mentioned mobile phone further includes being oppositely arranged
First electrode 101 and second electrode 102, between first electrode 101 and second electrode 102 constitute pressure sensitive capacitor.Herein
In the case of, during user touches touch screen 10, different touch-control pressure, so that first electrode 101 and second electrode 102
Between space D it is different, the capacitance so as to cause above-mentioned pressure sensitive capacitor changes.It therefore can be by feeling of stress
The acquisition for answering capacitance variation amount achievees the purpose that measure touch-control pressure.
Usual above-mentioned first electrode 101 can be shared with the electrode layer in touch screen 10, and second electrode 102 can be set
It is placed on mobile phone center 11.However can have location tolerance during assembling touch screen 10 and mobile phone center 11, which misses
Difference can impact the precision of pressure detecting.In addition, when finger presses touch screen 10, on the touch screen 10 at pressing position
And pressing position periphery can deform, so that pressing position periphery, i.e., its pressure sensitive of the position not pressed electricity
Appearance is also changed, so that collected touch-control pressure data is inaccurate, reduces the precision of touch-control pressure detecting.
Summary of the invention
The embodiment of the present invention provides a kind of array substrate, touch-control display panel and touch-control pressure detection method, display dress
It sets, when solving to detect touch-control pressure using pressure sensitive capacitor, the low problem of detection accuracy.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The one side of the embodiment of the present invention, provides a kind of array substrate, including multiple sub-pixes and is located at the sub- picture
Light sensitive component in element；The scan signal line and reading letter that the light sensitive component is separately connected first voltage end and transverse and longitudinal is intersected
Number line, for opening the light sensitive component under the control at the scan signal line and the first voltage end, to pass through photoelectricity
Conversion detects touch-control pressure, and will test result and exported by the reading signal wire.
Preferably, the light sensitive component includes photodiode, switching transistor and storage capacitance；The switch crystal
The grid of pipe connects the scan signal line, and the first pole connects the anode of the photodiode, and the second pole and the reading are believed
Number line is connected；The cathode of the photodiode connects the first voltage end；One end of the capacitor and described photosensitive two
The anode of pole pipe is connected, and the other end connects the cathode of the photodiode.
Preferably, at least three be arranged successively and the sub-pix of different colours constitute a pixel unit, each pixel list
The light sensitive component is provided in member.
Preferably, when a sub-pix in the pixel unit is blue subpixels, the light sensitive component is set to institute
It states in blue subpixels.
Preferably, scan signal line described in the light sensitive component connection same positioned at same a line, positioned at the light sensation of same row
Signal wire is read described in element connection same.
The another aspect of the embodiment of the present invention provides a kind of touch-control display panel, including any one battle array as described above
Column substrate.
Preferably, further include touch control component for detecting position of touch.
The another aspect of the embodiment of the present invention, provide it is a kind of using any one as described above touch-control display panel to touching
Governor pressure carries out detection method, comprising: scan signal line and first voltage end control light sensitive component are opened；The light sensitive component is logical
It crosses photoelectric conversion to detect touch-control pressure, and will test result and exported by the reading signal wire.
Preferably, the light sensitive component detects touch-control pressure by photoelectric conversion, and will test result and pass through institute
Stating and reading signal wire output includes: that the light sensitive component exports initial current to reading signal wire and stores；Wherein, described initial
When electric current is contact and does not press, the current value of the light sensitive component output；The light sensitive component is worked as to signal wire output is read
Preceding electric current simultaneously stores；Wherein, the current flow is the current value of the light sensitive component output after pressing；To the initial electricity
Stream is compared with the current flow obtains current variation value, and show that current finger presses according to the current variation value
Power；The current finger pressing force is compared with dynamics grade threshold, to determine finger pressing force grade.
Preferably, when being provided with the light sensitive component in each pixel unit, and it is located at the light sensitive component with a line
Scan signal line described in same is connected, it is described when reading signal wire described in the light sensitive component connection same positioned at same row
Before light sensitive component exports current flow and stores to reading signal wire, the method also includes: at least two line scan signals lines
Scanning signal group is constituted, the scanning signal group is opened one by one, so that with the scan signal line phase in the scanning signal group
The light sensitive component of connection is opened simultaneously, and determines touch-control position according to the position of the first reading signal wire and the scanning signal group
It sets；Wherein, the current flow of the first reading signal wire output is different from initial current；The initial current is worked as with described
Preceding electric current, which is compared, obtains current variation value, and obtains current finger pressing force according to the current variation value, works as by described in
Preceding finger pressing force is compared with dynamics grade threshold, to determine finger pressing force grade, comprising: by each touch position
Current flow obtain current variation value compared with initial current, and each described touch-control is obtained according to the current variation value
The current finger pressing force of finger at position；By the current finger pressing force of each touch position and described dynamics etc.
Grade threshold value compares, to determine the finger pressing force grade of each position of touch.
Preferably, when the touch-control display panel includes touch control component, the light sensitive component is exported to signal wire is read
Before current flow and storage, the method also includes: position of touch is detected by the touch control component；To described first
Beginning electric current is compared with the current flow and obtains current variation value, and according to the current variation value obtain current finger by
Pressure compares the current finger pressing force with dynamics grade threshold, to determine finger pressing force grade, comprising: by institute
It states the scan signal line of touch position while opening, so that the light sensitive component of the touch position is opened simultaneously；It will be every
The current flow of one touch position obtains current variation value compared with initial current, and is obtained according to the current variation value
The current finger pressing force of each touch position finger；The current finger of each touch position is pressed
Power is compared with the dynamics grade threshold, to determine the finger pressing force grade of each position of touch.
The embodiment of the present invention in another aspect, providing a kind of display device includes that any one touch-control as described above is shown
Panel further includes the scanner driver being connected with the scan signal line, and the letter being connected with the reading signal wire
Number processor.
The embodiment of the present invention provides a kind of array substrate, touch-control display panel and touch-control pressure detection method, display device.
The array substrate includes multiple sub-pixes and the light sensitive component in sub-pix.Light sensitive component is separately connected first voltage end
And scan signal line and reading signal wire that transverse and longitudinal is intersected, for opening under the control at scan signal line and first voltage end
Light sensitive component is opened, to detect by photoelectric conversion to touch-control pressure, and will test result by reading signal wire output.
So, under first voltage end and scanning signal line traffic control, above-mentioned light sensitive component, Yong Hu can be opened
During touch-control when the touch-control pressure difference of finger, the light that light sensitive component detects is incident at finger valley line covering position
Amount of incident is different, and the light sensitive component can carry out photoelectric conversion according to the light amount of incident detected, and from reading signal wire
The current signal that output matches with above-mentioned light amount of incident, to obtain corresponding touch-control pressure by the current signal.Due to
The detection of above-mentioned touch-control pressure is realized by light sensitive component, so as to avoid using existing pressure sensitive capacitor to touch-control pressure
When power is detected, the low problem of detection accuracy.And then improve the detection accuracy of touch-control pressure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram for touch control display apparatus that the prior art provides；
Fig. 2 a is a kind of structural schematic diagram of array substrate provided in an embodiment of the present invention；
Fig. 2 b is a kind of structural schematic diagram of fingerprint pressing provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the light sensitive component in Fig. 2 a；
Fig. 4 is the structural schematic diagram of another array substrate provided in an embodiment of the present invention；
When Fig. 5 a is the touch-control display panel that finger has array substrate shown in Fig. 4, the position of fingerprint and pixel unit
Corresponding schematic diagram；
When Fig. 5 b is that finger contacts and do not press the touch-control display panel with array substrate shown in Fig. 4, light sensitive component
Collected current signal schematic diagram；
When Fig. 5 c is that finger pressing has the touch-control display panel of array substrate shown in Fig. 4, light sensitive component is collected
Current signal schematic diagram；
Fig. 6 a is a kind of structural schematic diagram of touch control component provided in an embodiment of the present invention；
Fig. 6 b is the structural schematic diagram of another touch control component provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Fig. 8 is a kind of touch-control pressure detection method flow chart provided in an embodiment of the present invention；
Fig. 9 is the timing diagram of control signal during a kind of touch-control pressure detecting provided in an embodiment of the present invention.
Appended drawing reference:
01- touch-control display panel；10- touch screen；11- mobile phone center；101- first electrode；102- second electrode；D-
Spacing between one electrode and second electrode；20- sub-pix；21- pixel unit；30- light sensitive component；31- scanner driver；
32- signal processor；33- touch control component；S1, S2 ... Sn- scan signal line；DL1, DL2 ... DLm- read signal wire；Vd-
One voltage end；Gap between H- valley line and touch-control display panel；T- switching transistor；C- storage capacitance；L- photodiode；
RX- touch-control sensing electrode；TX- touch-driven electrode.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of array substrate, as shown in Figure 2 a including multiple sub-pixes 20 and positioned at sub-pix
Light sensitive component 30 in 20.
Wherein, scan signal line (S1, S2 ... that light sensitive component 30 is separately connected first voltage end Vd and transverse and longitudinal is intersected
Sn) and signal wire (DL1, DL2 ... DLm) is read, for the control in scan signal line (S1, S2 ... or Sn) and first voltage end Vd
Under system, light sensitive component 30 is opened, to detect by photoelectric conversion to touch-control pressure, and will test result by reading signal
Line (DL1, DL2 ... or DLn) output.
It should be noted that above-mentioned n and m is the positive integer more than or equal to 1.In addition, above-mentioned first voltage end Vd can be with
For ground terminal.
There is rough crestal line and valley line since user's finger is upper as shown in Figure 2 b, when user touches by above-mentioned array
When the touch-control display panel 01 that substrate is constituted, crestal line is in contact with touch-control display panel 01, and valley line and touch-control display panel 01
Between have gap H.Therefore, in the case where above-mentioned light sensitive component 30 is opened, the pressing dynamics when user's touch-control become
When change, gap H can also change between valley line and touch-control display panel 01, be incident at finger covering position to change
The light amount of incident of light sensitive component 30.In the case, reading signal wire (DL1, the DL2 ... being connected with the light sensitive component 30
DLm) current signal exported can also change, and converse and variable quantity △ I so as to the variable quantity △ I by current signal
The touch-control pressure to match, and then achieve the purpose that detect touch-control pressure.
In conclusion above-mentioned light sensitive component, Yong Hu can be opened under first voltage end and scanning signal line traffic control
During touch-control when the touch-control pressure difference of finger, the light that light sensitive component detects is incident at finger valley line covering position
Amount of incident is different, and the light sensitive component can carry out photoelectric conversion according to the light amount of incident detected, and from reading signal wire
The current signal that output matches with above-mentioned light amount of incident, to obtain corresponding touch-control pressure by the current signal.Due to
The detection of above-mentioned touch-control pressure is realized by light sensitive component, so as to avoid using existing pressure sensitive capacitor to touch-control pressure
When power is detected, the low problem of detection accuracy.And then improve the detection accuracy of touch-control pressure.
Further, above-mentioned light sensitive component 30 as shown in figure 3, may include photodiode L, switching transistor T and
Storage capacitance C.
Wherein, the grid of switching transistor T connects scan signal line Sn, and the first pole connects the anode of photodiode L, the
Two poles are connected with signal wire DLm is read.The cathode of photodiode L connects first voltage end Vd.One end of capacitor C with it is photosensitive
The anode of diode L is connected, and the other end connects the cathode of photodiode L.
In the case, when switching transistor T is connected said scanning signals line Sn input scanning signal, user is being touched
During control, the amount of incident of light at finger valley line covering position can be converted into current signal by photodiode L, and be led to
Above-mentioned switching transistor T is crossed to export to signal wire DLm is read, to be obtained according to the electric signal that reading signal wire DLm is read
Know the touch-control pressure of finger.Above-mentioned storage capacitance C can enable photodiode L by the stable output of above electrical signal extremely
Read signal wire DLm.
It should be noted that above-mentioned switching transistor T can be N-type transistor, or P-type transistor.The switch
The first of transistor T extremely can be source electrode, and second first can extremely drain for drain electrode or extremely, the second extremely source electrode.This hair
It is bright not limit this.
In addition, above-mentioned light sensitive component 30 can also include multiple transistors in parallel with switching transistor T and it is multiple and
The capacitor of storage capacitance C parallel connection.
On this basis, in order to enable being shown in the touch-control display panel 01 that user's finger pressing is made of above-mentioned array substrate
When showing any position in region, touch-control pressure can be tested.Preferably, as shown in Figure 2 a, it at least three successively arranges
The sub-pix 20 of column and different colours constitutes a pixel unit 21, is provided with a light sensitive component in each pixel unit 21
30。
It should be noted that the color for constituting at least three sub-pixes 20 of above-mentioned pixel unit 21 can be respectively red
(R), blue (B) and green (G), or can also be cyan, magenta and yellow.Which is not limited by the present invention.
It can be respectively red (R), blue (B) in the color for constituting at least three sub-pixes 20 of above-mentioned pixel unit 21
And in the case where green (G), since when changing the aperture opening ratio of blue (B) sub-pix, human eye is not noticeable.Therefore preferably
, when a sub-pix 20 in pixel unit 21 is blue (B) sub-pix, as shown in figure 4, light sensitive component 30 can be set
In blue (B) sub-pix.So, even if because being provided with photosensitive element 30 in blue subpixels causes blue (B)
The aperture opening ratio of sub-pix reduces, and since human eye is also not noticeable, the influence to display effect is smaller.
Further, in order to save the wiring space in array substrate, as shown in figure 4, being located at the light sensitive component with a line
30 connections same scan signal line (S1, S2 ... or Sn) connect same positioned at the light sensitive component 30 of same row and read letter
Number line (DL1, DL2 ... or DL m).In the case, since multiple pixel units 21 usually can be pressed when finger presses,
Therefore fine scanning signal wire can be opened simultaneously, so that the light sensitive component 30 at pressing position is at work shape
State.
Test when being provided with a light sensitive component 30 to each pixel unit 21 below, to finger touch pressure
Journey is described in detail.
Specifically, multiple pixel units 21 of a covering are as shown in Figure 5 a, due to the crestal line and valley line alternating on finger
Setting, therefore when a pixel unit 21 is covered by valley line, the pixel unit 21 adjacent with the pixel unit 21 is covered by crestal line
Lid.
In the case, when finger contacts and do not press the touch-control display panel 01 being made of above-mentioned array substrate, such as
It is in contact due to crestal line with touch-control display panel 01 shown in Fig. 2 b, and there is gap H between valley line and touch-control display panel 01, because
This light sensitive component 30 that can be considered as in the pixel unit 21 of crestal line covering position does not receive light, so the light sensitive component 30
It can be indicated as shown in Figure 5 b with 0 to the electric current that signal wire (DL1, DL2, DL3 or DL4) is exported is read, and valley line covering position
Pixel unit 21 in light sensitive component 30 convert corresponding current signal for the light received, using 1 indicate, output extremely
It reads signal wire (DL1, DL2, DL3 or DL4).
At this point, for reading signal wire DL1, the electric current I=(1 × A/2+0 × A/2) of reading signal wire DL1 output/
A=0.5.Wherein, A is the number for the pixel unit 21 being connected with reading signal wire DL1 that a finger can cover.
Next, when finger press above-mentioned touch-control display panel 01 when, due to crestal line still with 01 phase of touch-control display panel
Contact, thus the light sensitive component 30 in the pixel unit 21 of crestal line covering position still to read signal wire (DL1, DL2, DL3 or
DL4 electric current 0) is exported.And gap H during finger pressing between valley line and touch-control display panel 01 reduces, so that paddy
Light sensitive component 30 in the pixel unit 21 of line covering position reduces the light received, therefore the pixel of valley line covering position
Light sensitive component 30 in unit 21 is also accordingly reduced to signal wire (DL1, DL2, DL3 or DL4) output electric current is read, such as is reduced
To 0.5.
At this point, electric current I=(0.5 × A/2+0 × A/2)/A=0.25 of above-mentioned reading signal wire DL1 output.
From the foregoing, it will be observed that the gap H between above-mentioned valley line and touch-control display panel 01 can subtract when the pressing dynamics of finger increase
It is small, so that the light luminance for the light sensitive component 30 being incident in the pixel unit 21 of valley line covering position reduces, to make
The light sensitive component 30 obtained in the pixel unit 21 of valley line covering position is electric to signal wire (DL1, DL2, DL3 or DL4) output is read
Stream also reduces, therefore can be judged by reading the current value of signal wire DL1 output the pressing dynamics of finger.
The embodiment of the present invention provides a kind of touch-control display panel, including any one array substrate as described above.Have
Structure identical with the array substrate that previous embodiment provides and beneficial effect, since previous embodiment is to array substrate
Structure and beneficial effect are described in detail, and details are not described herein again.
In addition, above-mentioned touch-control display panel further includes the touch control component for detecting position of touch.Specifically, such as Fig. 6 a institute
Show, above-mentioned touch control component 33 may include transverse and longitudinal intersect touch-control sensing electrode RX and touch-driven electrode TX, by touch-control
Induction electrode RX and touch-driven electrode TX can form mutual capacitance type touch control capacitance, with during touch-control, according to capacitor
Variation detects position of touch.Or as shown in Figure 6 b, above-mentioned touch control component 33 includes touch-control arranged in a matrix
Electrode, which can form self-tolerant touch control capacitance, and be detected by the variation of its capacitor to position of touch.
The embodiment of the present invention provides a kind of display device, as shown in fig. 7, comprises any one touch-control as described above is shown
Panel 01.With structure identical with the touch-control display panel that previous embodiment provides and beneficial effect, due to previous embodiment
The structure of touch-control display panel and beneficial effect are described in detail, details are not described herein again.
In addition, further including the scanner driver 31 being connected with scan signal line (S1, S2 ... Sn), and believe with reading
The signal processor 32 that number line (DL1, DL2 ... DLm) is connected.Wherein, scanner driver 31 can export scanning signal, to open
The light sensitive component 30 being connected with scan signal line (S1, S2 ... Sn) is opened, photoelectric conversion is carried out to touch-control position of touch, and will
Conversion results are by reading signal wire (DL1, DL2 ... DLm) output to signal processor 32, so that 32 energy of signal processor
The enough touch-control pressure that above-mentioned position of touch is known according to conversion results.
The embodiment of the present invention, which provides, a kind of to be detected touch-control pressure using any one of the above touch-control display panel 01
Method, include: as shown in Figure 8
S101, scan signal line as shown in Figure 2 a (S1, S2 ... Sn) and first voltage end Vd control light sensitive component 30
It opens.
S102, light sensitive component 30 detect touch-control pressure by photoelectric conversion, and will test result by reading letter
The output of number line (DL1, DL2 ... DLm).
So, under first voltage end and scanning signal line traffic control, above-mentioned light sensitive component, Yong Hu can be opened
During touch-control when the touch-control pressure difference of finger, the light that light sensitive component detects is incident at finger valley line covering position
Amount of incident is different, and the light sensitive component can carry out photoelectric conversion according to the light amount of incident detected, and from reading signal wire
The current signal that output matches with above-mentioned light amount of incident, to obtain corresponding touch-control pressure by the current signal.Due to
The detection of above-mentioned touch-control pressure is realized by light sensitive component, so as to avoid using existing pressure sensitive capacitor to touch-control pressure
When power is detected, the low problem of detection accuracy.And then improve the detection accuracy of touch-control pressure.
Hereinafter, the detection method to touch-control pressure carries out detailed illustration.
Embodiment one
It, can be by light sensitive component 30 to touch-control pressure in the present embodiment in the case where being not necessarily to detect position of touch
Power is detected.
Specifically, above-mentioned steps S102 may include:
Firstly, light sensitive component 30 exports initial current I to signal wire (DL1, DL2 ... DLm) is read1And it stores.Wherein, on
State initial current I1When contacting for user and do not press touch-control display panel 01, the current value of the above-mentioned output of light sensitive component 30.
Specifically, as shown in Figure 5 b, since crestal line is in contact with touch-control display panel 01, and valley line and touch-control display panel
There is gap H, therefore the light sensitive component 30 that can be considered as in the pixel unit 21 of crestal line covering position does not receive light between 01
Line, so the initial current I that the light sensitive component 30 is exported to reading signal wire (DL1, DL2, DL3 or DL4)1It is indicated with 0, and paddy
The light received is converted corresponding current signal, i.e. valley line by light sensitive component 30 in the pixel unit 21 of line covering position
The initial current I of corresponding position1It is indicated using 1.
At this point, for reading signal wire DL1, the electric current I of reading signal wire DL1 output1=(1 × A/2+0 × A/
2)/A=0.5.
Next, when user press touch-control display panel 01 after, light sensitive component 30 to read signal wire (DL1, DL2 ...
DLm current flow I) is exported2And it stores.Wherein, current flow I2After pressing, the current value of the output of light sensitive component 30.
Specifically, since crestal line is still in contact with touch-control display panel 01 after user's pressing, crestal line covering position
Pixel unit 21 in light sensitive component 30 still export electric current 0, i.e. crestal line to reading signal wire (DL1, DL2, DL3 or DL4)
The current flow I of corresponding position2It is 0.And gap H during finger pressing between valley line and touch-control display panel 01 subtracts
Small, so that the light sensitive component 30 in the pixel unit 21 of valley line covering position reduces the light received, therefore valley line covers
The current flow I that light sensitive component 30 in the pixel unit 21 of position is exported to reading signal wire (DL1, DL2, DL3 or DL4)2
Also corresponding to reduce, such as reduce to 0.5.
At this point, the electric current I of above-mentioned reading signal wire DL1 output2=(0.5 × A/2+0 × A/2)/A=0.25.
Next, to initial current I1With current flow I2It is compared and obtains current variation value △ I, and become according to electric current
Change value △ I obtains current finger pressing force.
Specifically, the initial current I of signal wire (DL1, DL2, DL3 and DL4) output can will be read at pressing position1
With current flow I2It is overlapped respectively, and to superimposed initial current I1With current flow I2It is compared and show that electric current becomes
Change value △ I, and current finger pressing force at pressing position is obtained according to current variation value △ I.Wherein, above-mentioned current variation value △
I is bigger, and the pressing dynamics of finger are bigger.
Finally, above-mentioned current finger pressing force can be compared with dynamics grade threshold Fm, to determine finger pressing force
Grade.
So, after the finger pressing force grade of position of touch determines, different finger pressing forces etc. may be implemented
The corresponding different order of grade.For example, can be set to finger pressing force grade I when user watches video and correspond to volume
Adjusting, the adjusting of finger pressing force grade II corresponding brightness size, finger pressing force grade III corresponds to the tune of fast forward speed
Section, therefore user can apply different pressing forces, to realize transferring for the corresponding command.Wherein, finger pressing force grade I, hand
Refer to that the size of pressing force grade II and the corresponding finger pressing force of finger pressing force grade III successively increases.
Embodiment two
In the present embodiment, position of touch can be detected by light sensitive component 30, and only to the touch-control of position of touch
Pressure is detected.
Specifically, being provided with a light sensitive component 30 in each pixel unit 21 as shown in figure 4, working as, and it is located at same a line
Light sensitive component 30 connect same scan signal line (S1, S2 ... or Sn), positioned at same row light sensitive component connection it is same
Described in item read signal wire (DL1, DL2 ... or DL m) when, light sensitive component 30 to read signal wire (DL1, DL2 ... DL
M) current flow I is exported2And before storing, the above method further include:
Firstly, at least two line scan signals lines constitute scanning signal group 40 as shown in Figure 7, wherein one in Fig. 7 is swept
It retouches signal group 40 to be made of four line scan signals lines, and the scanning signal group 40 is opened one by one as shown in Figure 9, so that with scanning
It light sensitive component 30 that scan signal line in signal group 40 is connected while opening, and reads and believe according to as shown in Figure 7 first
Number line DLfPosition of touch is determined with the position of the scanning signal group 40.
Wherein, above-mentioned first signal DL is readfThe current flow I of line output2With initial current I1It is different.Wherein 1≤f≤
M, f are positive integer.For example, as the current flow I for reading signal wire DL1 and DL2 output2With initial current I1It is above-mentioned when different
Reading signal wire DL1 and DL2 can be above-mentioned first reading signal DLf.At this point it is possible to determine touching by scanning signal group 40
The abscissa for controlling position reads signal DL by firstfIt determines the ordinate of position of touch, and then obtains specific touch-control position
It sets.
Next, to current flow I2With initial current I1It is compared and obtains current variation value △ I, and become according to electric current
Change value △ I obtains current finger pressing force, and current finger pressing force is compared with dynamics grade threshold, to determine that finger presses
Power grade, comprising:
By the current flow I of each touch position2With initial current I1Compare and obtains current variation value △ I, and according to
Current variation value △ I obtains the current finger pressing force of each touch position finger.
Specifically, the scan signal line of each touch position is opened simultaneously, so that each touch position
Light sensitive component 30 is at working condition, and exports current flow I to signal wire is read2With initial current I1.Then by such as scheming
Signal processor 32 shown in 7 is according to the current flow I of each touch position2With initial current I1Compare and show that electric current becomes
Change value △ I, and obtain according to current variation value △ I the current finger pressing force of each touch position finger.
Finally, the current finger pressing force of each touch position is compared with dynamics grade threshold Fm, with determination
The finger pressing force grade of each position of touch.
Embodiment three
In the present embodiment, when touch-control display panel 01 includes touch control component 33 as shown in figures 6 a and 6b, Ke Yitong
It crosses the touch control component 33 to detect position of touch, and only the touch-control pressure of position of touch is detected.
Specifically, exporting current flow I to signal wire (S1, S2 ... or Sn) is read in light sensitive component 302And store it
Before, the above method further include:
Position of touch is detected by touch control component 33.Specifically, can be using as shown in Figure 6 a by touch-control sensing
Electrode RX and touch-driven electrode TX can form mutual capacitance type touch control capacitance, or can be using as shown in Figure 6 b by touch control electrode
Self-tolerant touch control capacitance is formed, position of touch is detected according to the variation of capacitor.
Next, to initial current I1With current flow I2It is compared and obtains current variation value △ I, and become according to electric current
Change value △ I obtains current finger pressing force, and current finger pressing force is compared with dynamics grade threshold, to determine that finger presses
Power grade, comprising:
The scan signal line of touch position is opened simultaneously, so that the light sensitive component of touch position is opened simultaneously,
So that the light sensitive component 30 of each touch position is at working condition, and current flow I is exported to signal wire is read2
With initial current I1.Then by signal processor 32 as shown in Figure 7 according to the current flow I of each touch position2With it is first
Beginning electric current I1Compare and obtain current variation value △ I, and working as each touch position finger is obtained according to current variation value △ I
Preceding finger pressing force.
The current finger pressing force of each touch position is compared with dynamics grade threshold Fm, to determine each
The finger pressing force grade of position of touch.
In conclusion can be to the touch-control of each touch position by method described in embodiment two and embodiment three
Pressure is detected, so that the corresponding touch-control pressure of identical pressing dynamics grade of different location can call difference
Order, expand the calling range of order.For example, working as user in the case where finger pressing dynamics are pressing force grade I
When pressing the center of picture, picture amplification order can be called, and when user presses the marginal position of picture, it can hold
Row closes the order of picture.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of array substrate, which is characterized in that the light sensitive component including multiple sub-pixes and in the sub-pix；
The scan signal line and reading signal wire that the light sensitive component is separately connected first voltage end and transverse and longitudinal is intersected, are used for
Under the control at the scan signal line and the first voltage end, the light sensitive component is opened, to pass through photoelectric conversion to touch-control
Pressure is detected, and be will test result and exported by the reading signal wire.
2. array substrate according to claim 1, which is characterized in that the light sensitive component includes photodiode, switch
Transistor and storage capacitance；
The grid of the switching transistor connects the scan signal line, and the first pole connects the anode of the photodiode, the
Two poles are connected with the reading signal wire；
The cathode of the photodiode connects the first voltage end；
One end of the capacitor is connected with the anode of the photodiode, and the other end connects the yin of the photodiode
Pole.
3. array substrate according to claim 1, which is characterized in that at least three are arranged successively and the sub- picture of different colours
Element constitutes a pixel unit, is provided with the light sensitive component in each pixel unit.
4. array substrate according to claim 3, which is characterized in that a sub-pix in the pixel unit is blue
When sub-pix, the light sensitive component is set in the blue subpixels.
5. array substrate according to claim 1, which is characterized in that the light sensitive component positioned at same a line connects same institute
Scan signal line is stated, reads signal wire described in the light sensitive component connection same positioned at same row.
6. a kind of touch-control display panel, which is characterized in that including array substrate as described in any one in claim 1-5.
7. touch-control display panel according to claim 6, which is characterized in that further include the touch-control for detecting position of touch
Element.
8. a kind of method detected using touch-control display panel as claimed in claims 6 or 7 to touch-control pressure, feature
It is, comprising:
Scan signal line and first voltage end control light sensitive component are opened；
The light sensitive component detects touch-control pressure by photoelectric conversion, and it is defeated by reading signal wire to will test result
Out.
9. the method according to claim 8 detected to touch-control pressure, which is characterized in that the light sensitive component passes through
Photoelectric conversion detects touch-control pressure, and will test result by reading signal wire output and include:
The light sensitive component is to reading signal wire output initial current and stores；Wherein, the initial current is contact and does not press
When pressure, the current value of the light sensitive component output；
The light sensitive component is to reading signal wire output current flow and stores；Wherein, it is described after the current flow is pressing
The current value of light sensitive component output；
The initial current is compared with the current flow and obtains current variation value, and is worth according to the curent change
Current finger pressing force out；
The current finger pressing force is compared with dynamics grade threshold, to determine finger pressing force grade.
10. the method according to claim 9 detected to touch-control pressure, which is characterized in that when each pixel unit
In be provided with the light sensitive component, and be located at scan signal line described in the light sensitive component connection same with a line, be located at
When reading signal wire described in the light sensitive component connection same of same row,
Before the light sensitive component exports current flow and stores to reading signal wire, the method also includes: at least two rows are swept
It retouches signal wire and constitutes scanning signal group, the scanning signal group is opened one by one, so that with the scanning in the scanning signal group
It light sensitive component that signal wire is connected while opening, and the position for reading signal wire and the scanning signal group according to first determines
Position of touch out；Wherein, the current flow of the first reading signal wire output is different from initial current；
The initial current is compared with the current flow and obtains current variation value, and is worth according to the curent change
Current finger pressing force out compares the current finger pressing force, with dynamics grade threshold to determine finger pressing force etc.
Grade, comprising:
The current flow of each touch position is obtained into current variation value compared with initial current, and is become according to the electric current
Change the current finger pressing force for being worth each touch position finger；
The current finger pressing force of each touch position is compared with the dynamics grade threshold, described in determination
The finger pressing force grade of each position of touch.
11. the method according to claim 9 detected to touch-control pressure, which is characterized in that when the touch-control is shown
When panel includes touch control component,
Before the light sensitive component exports current flow and stores to reading signal wire, the method also includes: pass through the touching
Control element detects position of touch；
The initial current is compared with the current flow and obtains current variation value, and is worth according to the curent change
Current finger pressing force out compares the current finger pressing force, with dynamics grade threshold to determine finger pressing force etc.
Grade, comprising:
The scan signal line of the touch position is opened simultaneously, so that the light sensitive component of the touch position is opened simultaneously
It opens；
The current flow of each touch position is obtained into current variation value compared with initial current, and is become according to the electric current
Change the current finger pressing force for being worth each touch position finger；
The current finger pressing force of each touch position is compared with the dynamics grade threshold, described in determination
The finger pressing force grade of each position of touch.
12. a kind of display device, which is characterized in that including touch-control display panel as claimed in claims 6 or 7, further include with
The scanner driver that the scan signal line is connected, and the signal processor being connected with the reading signal wire.
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| CN201610263974.8A CN105718118B (en) | 2016-04-25 | 2016-04-25 | Array substrate, touch-control display panel and touch-control pressure detection method, display device |
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| CN201610263974.8A CN105718118B (en) | 2016-04-25 | 2016-04-25 | Array substrate, touch-control display panel and touch-control pressure detection method, display device |
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| CN106293226B (en) * | 2016-08-09 | 2024-05-14 | 厦门天马微电子有限公司 | Display panel, display device and driving method |
| CN106446871A (en) * | 2016-11-04 | 2017-02-22 | 京东方科技集团股份有限公司 | Touch device and touch method |
| US10540044B2 (en) * | 2016-12-14 | 2020-01-21 | Cypress Semiconductor Corporation | Capacitive sensing with multi-pattern scan |
| CN106873832B (en) * | 2017-02-16 | 2020-03-06 | 京东方科技集团股份有限公司 | Optical induction type touch screen, touch display device and touch detection method |
| CN107068730B (en) * | 2017-06-08 | 2019-12-20 | 上海天马微电子有限公司 | Organic light-emitting display panel and electronic equipment |
| CN114187617A (en) * | 2017-07-31 | 2022-03-15 | 敦泰电子有限公司 | Control circuit of embedded optical fingerprint identification display device and embedded optical fingerprint identification display equipment |
| US11734944B2 (en) * | 2017-08-03 | 2023-08-22 | Himax Technologies Limited | Display device with embedded biometric detection function in active region |
| CN107505980B (en) * | 2017-08-16 | 2019-10-22 | 江苏集萃有机光电技术研究所有限公司 | Display screen and electronic equipment |
| CN107643852B (en) * | 2017-10-17 | 2021-02-19 | 厦门天马微电子有限公司 | Display panel and display device |
| CN108538255A (en) * | 2018-04-11 | 2018-09-14 | 京东方科技集团股份有限公司 | Pixel-driving circuit, image element driving method, array substrate and display device |
| CN108446055B (en) * | 2018-05-28 | 2020-11-06 | 京东方科技集团股份有限公司 | Pixel detection circuit, driving method and touch display panel |
| CN109917961B (en) * | 2019-02-28 | 2022-06-24 | 京东方科技集团股份有限公司 | Pressure detection device, display panel and 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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