CN107621906A - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN107621906A CN107621906A CN201710910692.7A CN201710910692A CN107621906A CN 107621906 A CN107621906 A CN 107621906A CN 201710910692 A CN201710910692 A CN 201710910692A CN 107621906 A CN107621906 A CN 107621906A
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Abstract
The invention discloses a kind of display panel and display device.The present invention sets multiple shift registers in the non-display area of display panel, k first choice output unit, k second selection output unit and k pressure sensitive unit, the scanning signal exported by the output end of shift register controls the state of first choice output unit and the second selection output unit, the output end of first choice output unit electrically connects with pressure sensitive unit, realize the state of control pressure sensing unit, improve pressure sensitive unit and be constantly in the problem of "on" position causes temperature rise, realize the effect for the service life for reducing kwh loss and extending pressure sensitive unit.And sharing by signal wire, reduce cabling, realize that the output signal for reducing sensing unit is connected to the interface of external circuit.
Description
Technical field
The present embodiments relate to display technology field, more particularly to a kind of display panel and display device.
Background technology
With the development of modern electronic technology, the display panel with touch controllable function is wide as a kind of information input tool
It is general applied to mobile phone, tablet personal computer, public place hall the various display products such as information enquiry machine in.
The touch controllable function applied to display screen typically realizes that pressure sensor uses strain-type by pressure sensor at present
Pressure sensitive bridge design, the offset signal output pressure detection signal inputted according to its input.Pressure sensor is arranged in
Glass bezel locations, corresponding drive circuit is designed on a display panel or provides offset signal by external circuit for it, is carried
The offset signal of confession makes pressure sensor be constantly in charged state so that pressure sensor temperature rise is obvious.
The content of the invention
The present invention provides a kind of display panel and display device, and being constantly in "on" position to improve pressure sensitive unit leads
The problem of causing temperature rise, realize the effect for the service life for reducing kwh loss and extending pressure sensitive unit.
In a first aspect, the embodiments of the invention provide a kind of display panel, the display panel includes multiple displacements of cascade
Register, k first choice output unit, k the second selection output units and k pressure sensitive units；Wherein, k is more than 1
Integer；
The control terminal (ctr1) and the output end of shift register described in one-level of each first choice output unit
(OUT1) electrically connect, the first input end of each first choice output unit is electrically connected with the first pressure sensitivity signal wire (TXH)
Connect, the output end (OUT2) of i-th of first choice output unit and the first input end of i-th of pressure sensitive unit
Electrical connection；
Second input of each pressure sensitive unit electrically connects with the second pressure sensitivity signal wire (TXL)；
The control terminal (ctr2) and the output end (OUT1) of one-level shift register of each second selection output unit
With electrically connecting, i-th second selection output unit first input end (FX-IN1) and the second input (FX-IN2) respectively with
First output end of i-th pressure sensitive unit and the electrical connection of the second output end；The of each second selection output unit
One output end (FX-OUT1) and the second output end (FX-OUT2) are electric with the 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire respectively
Connection；
Wherein, the control terminal of i-th first choice output unit and the control terminal of i-th second selection output units are electrically connected
Meet the output end of same one-level shift register, 1≤i≤k.
Second aspect, the embodiment of the present invention additionally provide a kind of display device, and the display device includes inventing any implementation
The display panel that example provides.
The present invention controls first choice output unit and the second selection to export by the scanning signal of shift register output
The state of unit, make pressure sensitive unit state in energization in shift register output scanning signal, and output pressure
Detection signal is to the 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire.Solve pressure sensitive unit and be constantly in "on" position and lead
The problem of causing temperature rise, realize the effect for the service life for reducing kwh loss and extending pressure sensitive unit.Second selection
The output signal of output unit control pressure sensing unit is transferred to the 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire, multiple pressures
Power sensing unit shares the 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire, reduces cabling, realizes and reduces the defeated of sensing unit
Go out the interface arrangement for being signally attached to detect circuit.
Brief description of the drawings
Fig. 1 is a kind of structural representation of display panel provided in an embodiment of the present invention.
Fig. 2 is a kind of driver' s timing figure provided in an embodiment of the present invention.
Fig. 3 is the circuit diagram of first choice output unit provided in an embodiment of the present invention.
Fig. 4 is a kind of circuit diagram of second selection output unit provided in an embodiment of the present invention.
Fig. 5 is the circuit diagram of another second selection output unit provided in an embodiment of the present invention.
Fig. 6 is the circuit diagram of another second selection output unit provided in an embodiment of the present invention.
Fig. 7 is the circuit diagram of pressure sensitive unit provided in an embodiment of the present invention.
Fig. 8 is a kind of structural representation of display panel provided in an embodiment of the present invention.
Fig. 9 is a kind of schematic diagram of display device provided in an embodiment of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Fig. 1 is a kind of structural representation of display panel provided in an embodiment of the present invention, referring to Fig. 1, display panel tool
Body includes：
Multiple shift registers 11, k first choice output unit 12, k second selection output unit 14 and the k of cascade
Individual pressure sensitive unit 13；Wherein, k is the integer more than 1；
The control terminal ctr1 and one-level shift register 11 of each first choice output unit 12 output end OUT1 are electrically connected
Connect, the first input end of each first choice output unit 12 electrically connects with the first pressure sensitivity signal wire TXH, i-th first choosings
The output end OUT2 for selecting output unit 12 electrically connects with the first input end A1 of i-th of pressure sensitive unit 13；
Second input of each pressure sensitive unit 13 electrically connects with the second pressure sensitivity signal wire TXL；
The control terminal ctr2 and one-level shift register 11 of each second selection output unit 14 output end OUT1 are electrically connected
Connect, i-th second selection output unit 14 first input end FX-IN1 and the second input FX-IN2 respectively with i-th of pressure
The first output end B1 and the second output end B2 electrical connection of sensing unit 13；First output of each second selection output unit 14
End FX-OUT1 and the second output end FX-OUT2 electrically connects with the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16 respectively；
Wherein, the control terminal ctr1 and i-th second selection output units 14 of i-th of first choice output unit 12 control
Output end OUT1,1≤i≤k of the ctr2 electrical connections in end processed with one-level shift register 11.
As shown in figure 1, exemplary in Fig. 1 show 3 shift registers, 11,3 first choice output units 12,3
Individual pressure sensitive unit 13 and 3 second selection output units 14.The output end OUT1 output scanning signals of shift register, are moved
Bit register 11 also includes trigger signal input IN and secondary trigger signal input next, per one-level shift register 11
Trigger signal input ST electrically connects with the secondary trigger signal output end next of previous stage shift register 11, previous stage displacement
The signal of the secondary trigger signal output end next outputs of register 11 can trigger startup next stage shift register 11 and export
Scanning signal.The first input end IN1 of first choice output unit 12 electrically connects with the first pressure sensitivity signal wire TXH, first choice
Second input IN2 of output unit 12 is electrically connected or is grounded with public voltage signal line COM.I-th of first choice output
The control terminal of unit 12 and the output end electrical connection of one-level shift register 11.First pressure sensitivity signal wire TXH and the second pressure sensitivity letter
Number line TXL is pressure sensitivity input signal cable, for providing offset signal for pressure sensitive unit 13；3rd pressure sensitivity signal wire 15 and
Four pressure sensitivity signal wires 16 are pressure sensitivity output signal line, for transmitting the output signal of pressure sensitive unit, i.e. pressure sensitivity detection signal.
Wherein, the voltage of the public voltage signal on public voltage signal line COM is, for example, -0.1V close to zero.Second pressure sensitivity signal
The voltage of signal on line TXL and the voltage of the public voltage signal on public voltage signal line COM, namely first choice output
The voltage of the signal of the second end IN2 inputs of unit 12 is close or equal.
The scanning signal that display panel provided in an embodiment of the present invention is exported by shift register 11 controls first choice
The signal that output unit 12 exports is the first pressure sensitivity signal or public voltage signal, when the first input of pressure sensitive unit 13
When holding A1 the first pressure sensitivity signals of reception, the second pressure sensitivity letter on the voltage and second pressure sense signal wire TXL of the first pressure sensitivity signal
Number voltage be respectively written into the first input end A1 and the second input A2 of pressure sensitive unit 13, pressure sensitive unit 13 is entered
Row charging, pressure sensitive unit 13 work, and export pressure sensitivity detection signal, and the pressure sensitivity detection signal of output passes through the second of conducting and selected
Select output unit 14 and be transferred to the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16, pass through the 3rd pressure sensitivity signal wire 15 and
Four pressure sensitivity signal wires 16 export pressure sensitivity detection signal, and the pressure sensitivity detection signal of output can reflect the size of ambient pressure value.Can be with
The pressure sensitivity detection signal exported according to the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16, determine ambient pressure value finger by
The size of pressure value caused by display panel is pressed, so as to realize the detection to ambient pressure.Such as the He of the 3rd pressure sensitivity signal wire 15
4th pressure sensitivity signal wire 16 is connected with the processor on display panel, and processor can be process chip, and processor receives the 3rd
The pressure sensitivity detection signal of the pressure sensitivity signal wire 16 of pressure sensitivity signal wire 15 and the 4th output, ambient pressure is determined according to pressure sensitivity detection signal
Size.When the first input end A1 of pressure sensitive unit 13 receives public voltage signal, because its voltage is low-voltage, second
Pressure sensitivity signal is similarly low-voltage, pressure sensitive unit 13 is not charged.By the electric current very little of pressure sensitive unit 13,
Temperature-rise effect is small, improves pressure sensitive unit 13 and is constantly in the problem of "on" position causes temperature rise, realizing reduces kwh loss
And extend the effect of the service life of pressure sensitive unit 13.
Exemplarily, Fig. 2 is a kind of driver' s timing figure provided in an embodiment of the present invention.Referring to Fig. 1 and Fig. 2, when first
During the output end OUT1 output scanning signals for the shift register 11 that first choice output unit 12 electrically connects, namely in Fig. 2
T1 stages, scanning signal are exported to the control terminal ctr1 of first first choice output unit 12, first first choice output
Unit 12 is strobed, and the first pressure sensitivity signal on the first pressure sensitivity signal wire TXH is write into the of first pressure sensitive unit 13
Second input A2 of the second pressure sensitivity signal write-in pressure sensitive unit 13 on one input A1, the second pressure sensitivity signal wire TXL,
First pressure sensitive unit 13 is charged, now, scanning signal is exported to the control of first second selection output unit 14
End, first second selection output unit 14 will be strobed, by the first output end B1 and second of first pressure sensitive unit
The pressure sensitivity detection signal of output end B2 outputs is transmitted to the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16；And second
Two selection output units 14 and the 3rd second selection output unit 14 are not strobed, not output signal.And then on display panel
Processor pressure can be determined according to the pressure sensitivity detection signal on the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16
Size.When the output end OUT1 of the shift register 11 of single 12 electrical connection of first first choice output exports scanning signal,
Namely t2 stages, first first choice output unit 12 are not gated on, first first choice output unit 12 is by common electrical
The public voltage signal on signal wire COM is pressed to write the first input end A1 of first pressure sensitive unit 13, the second pressure sensitivity letter
The second pressure sensitivity signal on number line TXL writes the second input A2 of first pressure sensitive unit 13, because the second pressure sensitivity is believed
The magnitude of voltage of the second pressure sensitivity signal on number line TXL and the magnitude of voltage of public voltage signal are close or equal, are substantially equal to
Zero, first pressure sensitive unit 13 is not charged, first pressure sensitive unit 13 does not work, and temperature is almost unchanged.Can be with
First pressure sensitive unit 13 of improvement is powered the problem of causing temperature to raise always, reduces heat caused by circuit, reduces work(
Consumption, improve the stability of circuit.
The output end OUT1 output scanning signal ranks of the shift register 11 of single 12 electrical connection of first first choice output
Section, now the output end OUT1 of other shift registers 11 does not export scanning signal, second He of first choice output unit 12
3rd first choice output unit 12 is not gated on, and second first choice output unit 12 is by public voltage signal line COM
On public voltage signal write second pressure sensitive unit 13 first input end A1, the 3rd first choice output unit
12 write the public voltage signal on public voltage signal line COM the first input end A1 of the 3rd pressure sensitive unit 13,
The second pressure sensitivity signal on second pressure sensitivity signal wire TXL writes second pressure sensitive unit 13 and the 3rd pressure sensitive unit
13 the second input A2.Due to the magnitude of voltage and public voltage signal of the second pressure sensitivity signal on the second pressure sensitivity signal wire TXL
Magnitude of voltage it is close or equal, be substantially equal to zero, not to second pressure sensitive unit 13 and the 3rd pressure sensitive list
Member 13 charges, and second pressure sensitive unit 13 and the 3rd pressure sensitive unit 13 do not work, and temperature is almost unchanged.
When the output end OUT1 of the shift register 11 of single 12 electrical connection of second first choice output exports scanning signal
When, scanning signal is exported to the control terminal ctr1 of second first choice output unit 12, second first choice output unit
12 are strobed, defeated by first of the first pressure sensitivity signal second pressure sensitive unit 13 of write-in on the first pressure sensitivity signal wire TXH
Enter and hold A1, the second pressure sensitivity signal on the second pressure sensitivity signal wire TXL writes the second input of second pressure sensitive unit 13
A2, second pressure sensitive unit 13 is charged, and now the output end OUT1 of other shift registers 11 does not export scanning letter
Number, first first choice output unit 12 and the 3rd first choice output unit 12 are not gated on, first first choice
Output unit 12 is defeated by first of public voltage signal first pressure sensitive unit 13 of write-in on public voltage signal line COM
Enter and hold A1, the public voltage signal on public voltage signal line COM is write the 3rd by the 3rd first choice output unit 12
The second pressure sensitivity signal on the first input end A1, the second pressure sensitivity signal wire TXL of pressure sensitive unit 13 writes first pressure
Second input A2 of sensing unit 13 and the 3rd pressure sensitive unit 13.Due to second on the second pressure sensitivity signal wire TXL
The magnitude of voltage of pressure sensitivity signal and the magnitude of voltage of public voltage signal are close or equal, are substantially equal to zero, second are not pressed
Power sensing unit 13 and the 3rd pressure sensitive unit 13 charge, second pressure sensitive unit 13 and the 3rd pressure sensitive list
Member 13 does not work, and temperature is almost unchanged.Now, scanning signal is exported to the control terminal of second second selection output unit 14
Ctrl2, second second selection output unit 14 will be strobed, by the first output end B1 of second pressure sensitive unit and the
The pressure sensitivity detection signal of two output end B2 outputs is transmitted to the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16；And second
Second selection output unit 14 and the 3rd second selection output unit 14 are not strobed, not output signal.And then display panel
On processor pressure can be determined according to the pressure sensitivity detection signal on the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16
Size.It can be seen that multiple pressure sensitive units 13 can share one article of the 3rd pressure sensitivity by the second selection output unit 14
Signal wire 15 and one article of the 4th pressure sensitivity signal wire 16, the scanning signal exported according to shift register 11, it is sequentially output pressure sensitivity inspection
Signal is surveyed to the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16, realizes the detection of pressure.Only need two pressure sensitivity signals
Output line (the 3rd pressure sensitivity signal wire 15 and the 4th pressure sensitivity signal wire 16), cabling is saved, and detect circuit, such as process chip
The upper port for receiving pressure sensitivity detection signal is also accordingly reduced, and saves cost.
Technical scheme provided in an embodiment of the present invention, first choice output unit is controlled by shift register output signal
Output voltage values and the second selection output unit output, and then the first output end of control pressure sensing unit and the successively
The pressure sensitivity signal of two output ends output is transferred to the 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire so that pressure sensitive unit electricity
Ambient pressure value is sensed during the shift register output scanning signal of connection, pressure sensitive list is reduced when not exporting scanning signal
The current value of member, reduces its turn on angle, so as to reduce the temperature rise of pressure sensitive unit, and only needs two pressure sensitivity signal outputs
Line (the 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire), cabling is saved, and detect and pressure is received on circuit, such as process chip
The port of sense detection signal is also accordingly reduced, and saves cost.
Need specification, the shift register in the embodiment of the present invention can be the intrinsic shift LD of display panel
Device.Such as the shift register in the embodiment of the present invention can be the shift register of the scan line electrical connection on display panel,
Display panel includes multirow pixel, the one-row pixels that each scan line can be used in electrical connection viewing area, for scanning
Line provides scanning signal, and carrying out charging to open pixel shows.Such as when scanning signal drives corresponding one-row pixels,
Scanning signal is high level, the size of now pressure sensitive unit sensing ambient pressure value, exports pressure sensitivity detection signal, works as scanning
When signal drives the pixel of other rows, the scanning signal of corresponding row is low level, by the electric current of pressure sensitive unit very
Small, temperature-rise effect is small.Therefore the technical scheme of the embodiment of the present invention can change feeling of stress according to the scanning signal of different time sections
The turn on angle of unit is answered, improves pressure sensitive unit and is constantly in the problem of "on" position causes temperature rise, realizing reduces electricity damage
The effect of consumption and the service life of extension pressure sensitive unit.Certainly, the shift LD of first choice output unit electrical connection
Device can also be the shift register being independently arranged.When being independently arranged, the number of shift register can be defeated equal to first choice
Go out the number of unit, be k.Pressure sensitive unit can be arranged at relative to the frame region of viewing area side or
More sides.
Fig. 3 is the circuit diagram of first choice output unit provided in an embodiment of the present invention.As shown in figure 3, first choice is defeated
Going out unit 12 includes the first transistor T1 and second transistor T2.The first transistor T1 grid and first choice output unit 12
Control terminal ctr1 electrical connections, the first transistor T1 the first pole and the first input end IN1 electricity of first choice output unit 12
Connection, the first transistor T1 the second pole electrically connects with the output end OUT2 of first choice output unit 12.
Second transistor T2 grid electrically connects with the first transistor T1 grid, second transistor T2 the first pole and the
One transistor T1 the second pole electrical connection, second transistor T2 the second pole and the second input of first choice output unit 12
IN2 is electrically connected.
The first transistor T1 is P-type transistor, and second transistor T2 is N-type transistor；Or the first transistor T1 is N-type
Transistor, second transistor T2 are P-type transistor.
Referring to Fig. 2 and Fig. 3, during the t1 stages, shift register that the control terminal ctr1 of first choice output unit 12 is received
When the scanning signal of 11 outputs is high level, the first transistor T1 conductings of first choice output unit 12, by the first transistor
The first pressure sensitivity signal TXH that T1 the first pole receives is transmitted to the output end OUT2 of first choice output unit 12.Pressure sensitive
Second input A2 of unit 13 electrically connects with the second pressure sensitivity signal wire TXL, and the second pressure sensitivity signal is low-voltage, pressure sensitive list
Second input A2 of member 13 is low-voltage, therefore in the first input end A1 and the second input A2 shapes of pressure sensitive unit 13
Into offset signal, pressure sensitive unit 13 is set to export pressure sensitivity detection signal.At the t2 stages, the control of first choice output unit 12
When the scanning signal that the shift register 11 that end ctr1 processed is received exports is low level, the second of first choice output unit 12 is brilliant
Body pipe T2 is turned on, and the voltage for the public voltage signal that second transistor T2 the first pole is received, which is transmitted to first choice, exports list
The output end OUT2 of member 12.Because the voltage of public voltage signal is low-voltage, therefore the first input end of pressure sensitive unit 13
A1 is low-voltage, and the second input A2 of pressure sensitive unit 13 electrically connects with the second pressure sensitivity signal wire TXL, the second pressure sensitivity signal
For low-voltage, the second input A2 of pressure sensitive unit 13 is low-voltage, and the input of pressure sensitive unit 13 can not be formed
Bias voltage.Therefore it is small by the electric current very little of pressure sensitive unit 13, temperature-rise effect.
Fig. 4 is a kind of circuit diagram of second selection output unit provided in an embodiment of the present invention.As shown in figure 4, the second choosing
Selecting output unit 14 includes the first signal behavior subelement 141 and the first phase inverter 142 of m series connection；Wherein, m be more than etc.
In 1 integer.
The input of first the first phase inverter 142 electrically connects with the control terminal ctr2 of the second selection output unit 14, m
The output end of individual first phase inverter 142 electrically connects with the first control terminal of the first signal behavior subelement 141；One of them first
The input of phase inverter 142 electrically connects with the second control terminal of the first signal behavior subelement 141；Such as in Fig. 4, the 3rd
The input of one phase inverter 142 electrically connects with the second control terminal of the first signal behavior subelement 141.
First input end, the second input, the first output end and the second output end of first signal behavior subelement 141 point
With the second selection first input end FX-IN1 of output unit, the second input FX-IN2, the first output end FX-OUT1 and the
Two output end FX-OUT1 are electrically connected；
First signal behavior subelement 141 is used for the signal for inputting first input end according to the signal that its control terminal inputs
Exported from the first output end, and the signal that the second input is inputted exports from the second output end.
Fig. 5 is the circuit diagram of another second selection output unit provided in an embodiment of the present invention, as shown in figure 5, second
Output unit is selected to include x the second phase inverters 143；Wherein, x is the integer more than or equal to 1.In Fig. 5 exemplarily
Show two the second phase inverters 143.
The input or output end of the input of first the second phase inverter 143 and one of them the first phase inverter 142
Electrical connection, the output end of x-th of second phase inverters 143 electrically connect with the second control terminal of the first signal behavior subelement 141.
Wherein, the first phase inverter 142 and the second phase inverter 143 are used for the control terminal for strengthening the second selection output unit 14
The driving force of the signal of ctrl2 inputs, exports the signal rapid translating of the first signal behavior subelement 141.First is anti-phase
The number of the phase inverter 143 of device 142 and second can carry out adaptation Sexual behavior mode according to specific circuit.
Fig. 6 is the circuit diagram circuit diagram of another second selection output unit provided in an embodiment of the present invention, with reference to figure 6,
On the basis of above-described embodiment, the first signal behavior subelement 141 includes third transistor T3, the 4th transistor T4, the 5th
Transistor T5 and the 6th transistor T6；
Third transistor T3 grid electrically connects with the first control terminal of the first signal behavior subelement 141, the first pole with
It is the first input end electrical connection of first signal behavior subelement 141, the first of the second pole and the first signal behavior subelement 141 defeated
Go out end electrical connection；
4th transistor T4 grid electrically connects with the second control terminal of the first signal behavior subelement 141, the first pole with
Third transistor T3 the first pole electrical connection, the second pole electrically connect with third transistor T3 the second pole；
5th transistor T5 grid electrically connects with third transistor T3 grid, the first pole and the first signal behavior are single
The second input electrical connection of member 141, the second pole electrically connect with the second output end of the first signal behavior subelement 141；
6th transistor T6 grid electrically connects with the 4th transistor T4 grid, the of the first pole and the 5th transistor T5
The electrical connection of one pole, the second pole electrically connect with the 5th transistor T5 the second pole.
Wherein, m can be odd number or even number, and x equally can be odd number or even number.First phase inverter 142 and second is anti-phase
The control terminal ctr2 from the second selection output unit 14 that device 143 is formed is to the second control terminal of the first signal behavior subelement
One branch road, when m is odd number, the number sum of the first phase inverter 142 and the second phase inverter 143 on this branch road needs
In even number.Exemplarily, if the voltage of the control terminal ctr2 outputs of the second selection output unit 14 is low-voltage, m-th the
One phase inverter output HIGH voltage, x-th second phase inverters export low-voltages, now the in the first signal behavior subelement 141
Three transistor T3, the 4th transistor T4, the 5th transistor M5, the 6th transistor T6 are turned off；If the second selection output unit
The voltage of 14 control terminal ctr2 outputs is high voltage, and m-th of first phase inverter low-voltages, x-th of second phase inverters export high
Voltage, now the third transistor T3 to the 6th transistor T6 in the first signal behavior subelement 141 be both turned on, the first signal choosing
It is defeated from the first output end and the second output end respectively to select the signal that subelement 141 inputs first input end and the second input
Go out.
With continued reference to Fig. 6, the first phase inverter 142 includes the 11st transistor T11 and the tenth two-transistor T12；Second is anti-
Phase device 143 includes the 15th transistor T15 and the 16th transistor T16；11st transistor T11 grid and the first phase inverter
142 input electrical connection, the first pole electrically connect with the first level signal line VGH, the output of the second pole and the first phase inverter 142
End electrical connection；
Tenth two-transistor T12 grid electrically connects with the 11st transistor T11 grid, the first pole and the first phase inverter
142 output end electrically connects, the second pole electrically connects with second electrical level signal wire VGL；
15th transistor T15 grid is electrically connected with the input of the second phase inverter 143, the first pole is believed with the first level
Number line VGH electrical connection, the second pole electrically connect with the output end of the second phase inverter 143；
16th transistor T16 grid electrically connects with the 15th transistor T15 grid, the first pole and the second phase inverter
143 output end electrically connects, the second pole electrically connects with second electrical level signal wire VGL.
Wherein, the signal on the first level signal line VGH can be high level signal, on second electrical level signal wire VGL
Signal can be low level signal, on the operation principle of the first phase inverter provided in an embodiment of the present invention and the second phase inverter,
It is well known to those skilled in the art, will not be repeated here.
Fig. 7 is the circuit diagram of pressure sensitive unit provided in an embodiment of the present invention, as shown in fig. 7, pressure sensitive unit 13
Including the first inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3 and the 4th inductive reactance R4.
The of first inductive reactance R1 first end and the 3rd inductive reactance R3 first end and pressure sensitive unit 13
One input A1 is electrically connected, the first inductive reactance R1 the second end and the second inductive reactance R2 first end and pressure sensitive list
13 first output end B1 of member are electrically connected, the second inductive reactance R2 the second end and the 4th inductive reactance R4 the second end and pressure
The second input A2 electrical connections of sensing unit 13, the 3rd inductive reactance R3 the second end and the first of the 4th inductive reactance R4
End electrically connects with the second output end B2 of pressure sensitive unit 13.
First inductive reactance R1 and the 4th inductive reactance R4 resistance change rate or principal strain directions is identical, and second
Inductive reactance R2 and the 3rd inductive reactance R3 resistance change rate or principal strain directions are identical, and the first inductive reactance R1 and
Second inductive reactance R2 resistance change rate or principal strain directions is different.So, when being acted on by ambient pressure,
The the first output end B1 and the second output end B2 of pressure sensitive unit 13 will export different electric signals, and then based on the first output
The electric signal of end B1 and the second output end B2 outputs can determine the size of ambient pressure value, for example, according to the first output end B1 and
The difference of second output end B2 output signals determines the size of ambient pressure value.
It should be noted that Fig. 7 is only exemplary to show a type of pressure sensitive unit.Pressure sensitive unit
13 can also be made up of semi-conducting material, including first be oppositely arranged while and when second, and the 3rd side being oppositely arranged and
4th side,；The first input end A1 of pressure sensitive unit 13, the second input A2, the first output end B1 and the second output end B2
Respectively positioned at first while, second while, the 3rd while and when the 4th.Two adjacent connection ends of pressure sensitive unit 13 (the first input
Hold A1 and the first output end B1, first input end A1 and the second output end B2, the second input A2 and the first output end B1 and
Second input A2 and the second output end B2) between connected by semi-conducting material film, be equivalent to connect by resistance, this
When by equivalent between four connection ends obtain four resistance, be equivalent to an electric bridge shown in Fig. 7, detect the specific of pressure
Principle refers to the description of the work to the pressure sensitive unit 13 shown in Fig. 7.
Fig. 8 is the structural representation of another display panel provided in an embodiment of the present invention.As shown in figure 8, the display surface
Plate 10 includes：Viewing area 30 and non-display area 20.Non-display area 20 includes multiple shift registers 11, k first choice
Output unit 12, k the second selection output units 14 and k pressure sensitive units 13；Wherein, k is the integer more than 1.Display
There is fine scanning line in area 30, for driving pixel to open, the pixel of opening is according to the data voltage luminescence display on data wire.
It should be noted that Fig. 8 is only that multiple shift registers 11, k first choice output are single for exemplary showing
The position of member 12, k the second selection output units 14 and k pressure sensitive unit 13, is not that it is limited, shift register
11st, first choice output unit 12, second selects output unit 14 and pressure sensitive unit 13 to be placed on non-display area
20 optional position.
Fig. 9 is a kind of schematic diagram of display device provided in an embodiment of the present invention, as shown in figure 9, the display device 50 is wrapped
Any display panel 10 for implementing to provide of the invention is provided.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (11)
- A kind of 1. display panel, it is characterised in that including：Multiple shift registers, k first choice output unit, k second selection output unit and the k pressure sensitive of cascade Unit；Wherein, k is the integer more than 1；The control terminal of each first choice output unit electrically connects with the output end of shift register described in one-level, Mei Gesuo The first input end for stating first choice output unit electrically connects with the first pressure sensitivity signal wire, i-th of the first choice output The output end of unit electrically connects with the first input end of i-th of pressure sensitive unit；Second input of each pressure sensitive unit electrically connects with the second pressure sensitivity signal wire；The control terminal of each second selection output unit is with the output end of one-level shift register with electrically connecting, i-th the The first input end and the second input of two selection output units respectively with the first output end of i-th pressure sensitive unit and the Two output ends electrically connect；The first output end and the second output end of each second selection output unit respectively with the 3rd pressure sensitivity Signal wire and the electrical connection of the 4th pressure sensitivity signal wire；Wherein, the control terminal electrical connection of the control terminal of i-th first choice output unit and i-th second selection output units is same The output end of one-level shift register, 1≤i≤k.
- 2. display panel according to claim 1, it is characterised in that the shift register includes trigger signal input With secondary trigger signal input；The secondary trigger signal of the trigger signal input of shift register and shift register described in previous stage described in per one-level Input electrically connects.
- 3. display panel according to claim 1, it is characterised in that the first choice output unit includes first crystal Pipe and second transistor；The grid of the first transistor electrically connects with the control terminal of the first choice output unit, the first transistor First pole electrically connects with the first input end of the first choice output unit, the second pole of the first transistor and described the The output end electrical connection of one selection output unit；The second transistor grid electrically connects with the grid of the first transistor, the first pole of the second transistor and institute State the second pole electrical connection of the first transistor, the second pole of the second transistor and the second of the first choice output unit Input electrically connects.
- 4. display panel according to claim 1, it is characterised in that the second selection output unit includes：M series connection The first phase inverter and the first signal behavior subelement；Wherein, m is the integer more than or equal to 1；The input of first first phase inverter electrically connects with the control terminal of the described second selection output unit, m-th of institute The output end for stating the first phase inverter electrically connects with the first control terminal of the first signal behavior subelement；One of them described The input of one phase inverter electrically connects with the second control terminal of the first signal behavior subelement；First input end, the second input, the first output end and the second output end difference of the first signal behavior subelement Electrically connected with first input end, the second input, the first output end and the second output end of the described second selection output unit；The first signal behavior subelement be used for according to its control terminal input signal by the signal that first input end inputs from First output end exports, and the signal that the second input is inputted exports from the second output end.
- 5. display panel according to claim 4, it is characterised in that also including x the second phase inverters；Wherein, x be more than Integer equal to 1；Input or the output end electricity of the input of first second phase inverter and one of them first phase inverter Connection, the output end of x-th of second phase inverter electrically connect with the second control terminal of the first signal behavior subelement.
- 6. display panel according to claim 4, it is characterised in that it is brilliant that the first signal behavior subelement includes the 3rd Body pipe, the 4th transistor, the 5th transistor and the 6th transistor；The grid of the third transistor electrically connects with the first control terminal of the first signal behavior subelement, the first pole and institute State the first input end electrical connection, the first of the second pole and the first signal behavior subelement defeated of the first signal behavior subelement Go out end electrical connection；The grid of 4th transistor electrically connects with the second control terminal of the first signal behavior subelement, the first pole and institute State the first pole electrical connection of third transistor, the second pole electrically connects with the second pole of the third transistor；The grid of 5th transistor electrically connects with the grid of the third transistor, the first pole and first signal behavior The second input electrical connection of subelement, the second pole electrically connect with the second output end of the first signal behavior subelement；The grid of 6th transistor electrically connects with the grid of the 4th transistor, the first pole and the 5th transistor The electrical connection of first pole, the second pole electrically connect with the second pole of the 5th transistor.
- 7. display panel according to claim 5, it is characterised in that first phase inverter include the 11st transistor and Tenth two-transistor；Second phase inverter includes the 15th transistor and the 16th transistor；11st transistor Grid electrically connects with the input of first phase inverter, the first pole electrically connects with the first level signal line, the second pole with it is described The output end electrical connection of first phase inverter；The grid of tenth two-transistor electrically connects with the grid of the 11st transistor, the first pole and described first anti-phase The output end electrical connection of device, the second pole electrically connect with second electrical level signal wire；The grid of 15th transistor electrically connects with the input of second phase inverter, the first pole and the first level signal Line electrical connection, the second pole electrically connect with the output end of second phase inverter；The grid of 16th transistor electrically connects with the grid of the 15th transistor, the first pole and described second anti-phase The output end electrical connection of device, the second pole electrically connect with second electrical level signal wire.
- 8. display panel according to claim 1, it is characterised in that the pressure sensitive unit includes the first induced electricity Resistance, the second inductive reactance, the 3rd inductive reactance and the 4th inductive reactance；The first input end of the first end of first inductive reactance and the 3rd inductive reactance and the pressure sensitive list The first input end electrical connection of member, the first end and institute of the second end of first inductive reactance and second inductive reactance The electrical connection of the output end of pressure sensitive unit first is stated, the second end of second inductive reactance and the 4th inductive reactance Second end electrically connects with the second input of the pressure sensitive unit, the second end of the 3rd inductive reactance and described The first end of four inductive reactances electrically connects with the second output end of the pressure sensitive unit.
- 9. display panel according to claim 1, it is characterised in that the first pressure sensitivity signal wire and second pressure sensitivity Signal wire is pressure sensitivity input signal cable；The 3rd pressure sensitivity signal wire and the 4th pressure sensitivity signal wire are pressure sensitivity output signal Line.
- 10. display panel according to claim 1, it is characterised in that the number of the shift register is k, i-th The control terminal of first choice output unit and the output end electrical connection of i-stage shift LD.
- 11. a kind of display device, it is characterised in that including the display panel described in claim any one of 1-10.
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| CN201710910692.7A CN107621906B (en) | 2017-09-29 | 2017-09-29 | Display panel and display device |
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| CN201710910692.7A CN107621906B (en) | 2017-09-29 | 2017-09-29 | Display panel and display device |
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| CN107145261A (en) * | 2017-06-30 | 2017-09-08 | 上海天马微电子有限公司 | A kind of display panel and display device |
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| JP2016031261A (en) * | 2014-07-28 | 2016-03-07 | 凸版印刷株式会社 | Pressure sensor |
| CN104505014A (en) * | 2014-12-31 | 2015-04-08 | 厦门天马微电子有限公司 | Drive circuit, array substrate and touch display device as well as drive method thereof |
| CN106782290A (en) * | 2016-12-28 | 2017-05-31 | 上海天马微电子有限公司 | A kind of array base palte, display panel and display device |
| CN106847220A (en) * | 2017-03-15 | 2017-06-13 | 厦门天马微电子有限公司 | Shift register, touch-control display panel and its driving method, touch control display apparatus |
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