CN107527600A - A kind of display panel and display device - Google Patents

A kind of display panel and display device Download PDF

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Publication number
CN107527600A
CN107527600A CN201710882863.XA CN201710882863A CN107527600A CN 107527600 A CN107527600 A CN 107527600A CN 201710882863 A CN201710882863 A CN 201710882863A CN 107527600 A CN107527600 A CN 107527600A
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CN
China
Prior art keywords
sensing
signal
signal output
display panel
signal line
Prior art date
Application number
CN201710882863.XA
Other languages
Chinese (zh)
Inventor
杨文强
黄志鹏
陈仲怀
孙莹
许育民
Original Assignee
厦门天马微电子有限公司
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Application filed by 厦门天马微电子有限公司 filed Critical 厦门天马微电子有限公司
Priority to CN201710882863.XA priority Critical patent/CN107527600A/en
Publication of CN107527600A publication Critical patent/CN107527600A/en

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers

Abstract

The invention discloses a kind of display panel and its display device, display panel includes a plurality of data signal line and multi-strip scanning signal wire;Multiple pressure sensors positioned at periphery circuit region, each pressure sensor include the first power supply signal input, second source signal input part, the first sensing signal output end and the second sensing signal output end;First power supply signal input and second source signal input part are used for pressure sensor input offset voltage signal;First sensing signal output end and the second sensing signal output end are used to export pressure sensitivity detection signal from pressure sensor;At least one corresponded by a switch element with a data signal line in first power input, second source input, the first sensing signal output end and the second sensing signal output end electrically connects.By technical scheme, reduce the space that the signal wire electrically connected with pressure sensor occupies periphery circuit region, be advantageous to the realization of display panel narrow frame.

Description

A kind of display panel and display device
Technical field
The present embodiments relate to display technology field, more particularly to a kind of display panel and display device.
Background technology
At present, the display panel with touch controllable function is widely used in various electronics as a kind of information input tool and set It is standby, for example, the information enquiry machine in public place hall, computer that user uses in daily life and work, mobile phone etc..So, User only need to touch the mark on touching display screen with finger and can be realized as operating the electronic equipment, break away from user Dependence to other input equipments, such as the grade of keyboard and mouse, make man-machine interaction more direct easy.In order to preferably meet User's request, generally it is provided with touching display screen for detecting user's touch-control pressure during touching display screen is touched Pressure sensor, pressure sensor can gather position of touch information, can also gather the size of touch-control pressure, enrich touch-control The application of Display Technique.
Multiple pressure sensors are generally comprised in display panel, each pressure sensor includes two power supply signals and inputted End and two sensing signal output ends, and two power supply signal inputs and two sensing signal output ends are i.e. corresponding positioned at display 4 signal lines of panel periphery circuit region, it is corresponding with pressure sensor with the increase of pressure sensor quantity in display panel The quantity of signal wire be multiplied, occupy the larger space in display panel periphery circuit region, considerably increase display panel The width of frame, it is unfavorable for the realization of display panel narrow frame.
The content of the invention
In view of this, the present invention provides a kind of display panel and display device, by the first electricity for setting pressure sensor In source signal input, second source signal input part, the first sensing signal output end and the second sensing signal output end extremely Few one electrically connects with data signal line one-to-one corresponding, be multiplexed data signal line in display panel as with pressure sensor Electrical connection is used to detect the signal wire for touching main body pressing display panel pressure size, substantially reduces and pressure sensor electricity The space for the display panel periphery circuit region that the signal wire of connection occupies, is advantageous to the realization of display panel narrow frame.It is in addition, logical Cross the setting of switch element so that display panel can timesharing shown and pressure-sensing, it is therefore prevented that display signal and pressure Mutual crosstalk between sensing signal.
In a first aspect, the embodiments of the invention provide a kind of display panel, including:
Viewing area and around the periphery circuit region of the viewing area;
A plurality of data signal line and multi-strip scanning signal wire, the data signal line and the scan signal line are arranged in a crossed manner Form multiple pixel cells;
Multiple pressure sensors positioned at the periphery circuit region, each pressure sensor include the first power supply signal Input, second source signal input part, the first sensing signal output end and the second sensing signal output end;First power supply Signal input part and the second source signal input part are used for the pressure sensor input offset voltage signal;Described One sensing signal output end and the second sensing signal output end are used to export pressure sensitivity detection signal from the pressure sensor;
First power supply signal input, the second source signal input part, the first sensing signal output end Pass through a switch element with least one in the second sensing signal output end and the data signal line corresponds Electrical connection.
Second aspect, the embodiment of the present invention additionally provide a kind of display device, including the display panel described in first aspect.
The embodiments of the invention provide a kind of display panel and display device, by the first power supply for setting pressure sensor In signal input part, second source signal input part, the first sensing signal output end and the second sensing signal output end at least One electrically connects with data signal line one-to-one corresponding, has been multiplexed the data signal line in display panel as electric with pressure sensor Connection is used to detect the signal wire for touching main body pressing display panel pressure size, avoids what is electrically connected with pressure sensor Signal wire enters walking line using the periphery circuit region of display panel, the problem of increasing display floater frame width, is believed using data Number line is the pressure-sensing function that can complete pressure sensor, substantially reduces the signal wire electrically connected with pressure sensor and accounts for According to display panel periphery circuit region space, be advantageous to the realization of display panel narrow frame.In addition, by with data-signal Serialized switch elements between the signal end and corresponding data signal line of the pressure sensor of line electrical connection so that display panel energy Enough timesharing are shown and pressure-sensing, it is therefore prevented that mutual crosstalk between display signal and pressure-sensing signal.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other Feature, objects and advantages will become more apparent upon:
Fig. 1 is a kind of overlooking the structure diagram of display panel provided in an embodiment of the present invention;
Fig. 2 is Fig. 1 close-up schematic view;
Fig. 3 is a kind of cross-sectional view of display panel provided in an embodiment of the present invention;
Fig. 4 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention;
Fig. 5 is the cross-sectional view in the AA ' directions along Fig. 2;
Fig. 6 is the cross-sectional view of another conductive lead wire provided in an embodiment of the present invention and data signal line;
Fig. 7 is the cross-sectional view of another conductive lead wire provided in an embodiment of the present invention and data signal line;
Fig. 8 is a kind of touch electrode structure schematic diagram provided in an embodiment of the present invention;
Fig. 9 is the cross-sectional view of another conductive lead wire provided in an embodiment of the present invention and data signal line;
Figure 10 is another touch electrode structure schematic diagram provided in an embodiment of the present invention;
Figure 11 is the cross-sectional view of another conductive lead wire provided in an embodiment of the present invention and data signal line;
Figure 12 is a kind of structural representation of pressure sensor provided in an embodiment of the present invention;
Figure 13 is the structural representation of another pressure sensor provided in an embodiment of the present invention;
Figure 14 is a kind of structural representation of display device provided in an embodiment of the present invention;
Figure 15 is the structural representation of another display device provided in an embodiment of the present invention
Figure 16 is the structural representation of another 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.It is same or similar in this specification Drawing reference numeral represent same or analogous structure, element or flow.It should be noted that in the case where not conflicting, this Shen Please in embodiment and embodiment in feature can be mutually combined.
The embodiments of the invention provide a kind of display panel, display panel includes a plurality of data signal line, multi-strip scanning is believed Number line and multiple pressure sensors positioned at periphery circuit region, data signal line and scan signal line it is arranged in a crossed manner formed it is multiple Pixel cell, each pressure sensor include the first power supply signal input, second source signal input part, the first sensing signal Output end and the second sensing signal output end, the first power supply signal input and second source signal input part are used to pass to pressure Sensor input offset voltage signal, the first sensing signal output end and the second sensing signal output end are used for defeated from pressure sensor Go out pressure sensitivity detection signal, the first power input, second source input, the first sensing signal output end and the second sensing signal At least one corresponded by a switch element with a data signal line in output end electrically connects.
Multiple pressure sensors are generally comprised in display panel, are inputted with the first power supply signal of each pressure sensor The signal wire that end, second source signal input part, the first sensing signal output end and the second sensing signal output end electrically connect is equal The driving chip in the space connection display panel using the periphery circuit region of display panel is needed to realize pressure-sensing function, I.e. each pressure sensor corresponds to 4 signal wires for needing to enter walking line using display panel periphery circuit region, with display The increase of pressure sensor quantity in panel, the quantity of signal wire corresponding with pressure sensor are multiplied, and occupy display The larger space of panel periphery circuit region, the width of display floater frame is considerably increased, is unfavorable for display panel narrow frame Realize.
The embodiment of the present invention is by setting the first power supply signal input of pressure sensor, second source signal to input At least one and data signal line in end, the first sensing signal output end and the second sensing signal output end, which corresponds, to be electrically connected Connect, the data signal line being multiplexed in display panel shows as the touch main body pressing that is used to detect electrically connected with pressure sensor Show the signal wire of panel stresses size, avoid the peripheral circuit that the signal wire electrically connected with pressure sensor utilizes display panel Walking line is entered in area, the problem of increasing display floater frame width, is the pressure that can complete pressure sensor using data signal line Power sensing function, substantially reduce the sky for the display panel periphery circuit region that the signal wire electrically connected with pressure sensor occupies Between, be advantageous to the realization of display panel narrow frame.In addition, pass through the signal in the pressure sensor electrically connected with data signal line Serialized switch elements between end and corresponding data signal line so that display panel can timesharing shown and pressure-sensing, Prevent mutual crosstalk between display signal and pressure-sensing signal.
Above is the core concept of the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, to the embodiment of the present invention In technical scheme be clearly and completely described.Based on the embodiment in the present invention, those of ordinary skill in the art are not having Under the premise of making creative work, the every other embodiment that is obtained belongs to the scope of protection of the invention.
Fig. 1 is a kind of overlooking the structure diagram of display panel provided in an embodiment of the present invention, and the part that Fig. 2 is Fig. 1 is put Big schematic diagram.With reference to Fig. 1 and Fig. 2, display panel includes the viewing area AA and periphery circuit region NAA around viewing area AA, display Panel also includes a plurality of data signal line 11, multi-strip scanning signal wire 12 and the pressure sensor 10 positioned at periphery circuit region NAA, Data signal line 11 includes first with the multiple pixel cells 13 of formation arranged in a crossed manner of scan signal line 12, each pressure sensor 10 Power supply signal input a1, second source signal input part a2, the first sensing signal output end b1 and the output of the second sensing signal Hold b2.First power supply signal input a1 and second source signal input part a2 is used for the input offset voltage of pressure sensor 10 Signal, the first sensing signal output end b1 and the second sensing signal output end b2 are used to export pressure sensitivity detection from pressure sensor 10 Signal.First power supply signal input a1, second source signal input part a2, the sensings of the first sensing signal output end b1 and second At least one corresponded by a switch element T with a data signal line 11 in signal output part b2 electrically connects.
It is exemplary, with reference to Fig. 1 and Fig. 2, can set pressure sensor 10 the first power supply signal input a1, second Power supply signal input a2, the first sensing signal output end b1 and the second sensing signal output end b2 pass through a switch element T electrically connects with a data signal line 11, reduce to the full extent need to occupy display panel periphery circuit region NAA's and pressure The quantity for the signal wire that sensor 10 electrically connects, i.e., reduce the signal wire electrically connected with pressure sensor 10 and account for the full extent According to display panel periphery circuit region NAA space, be advantageous to the realization of display panel narrow frame.Exemplary, it will can open The periphery circuit region NAA that element T is arranged on display panel is closed, avoids switch element T from impacting the light transmittance of display panel.
Optionally, switch element T can be thin film transistor (TFT), and each thin film transistor (TFT) includes control terminal C1, first end C2 With the second end C3.The control terminal C1 of thin film transistor (TFT) electrically connects with a clock cable 15, the first end C2 of thin film transistor (TFT) with Corresponding first power supply signal input a1, second source signal input part a2, the first sensing signal output end b1 sensing signals Or the second sensing signal output end b2 electrical connection, the second end C3 of thin film transistor (TFT) electrically connects with corresponding data signal line 11. Thin film transistor (TFT) can be believed the first power supply signal input a1, second source according to the clock control signal that control terminal C1 is received Number input a2, the first sensing signal output end b1 sensing signals or the second sensing signal output end b2 and corresponding data-signal Line 11 is turned on or off.
As shown in Fig. 2 by taking pressure sensor 101 as an example, thin film transistor (TFT) T1 first end C2 and pressure sensor 101 First power supply signal input a1 is electrically connected, and thin film transistor (TFT) T1 the second end C3 electrically connects with data wire size signal wire 111, thin Film transistor T1 can be according to the first power supply signal of its control terminal C1 clock control signal control pressure sensors 101 received Input a1 is turned on or off with data signal line 111;Thin film transistor (TFT) T2 first end C2 and the second of pressure sensor 101 Power supply signal input a2 is electrically connected, and thin film transistor (TFT) T2 the second end C3 electrically connects with data signal line 112, thin film transistor (TFT) T2 can be according to the second source signal input part a2 of its control terminal C1 clock control signal control pressure sensors 101 received It is turned on or off with data signal line 112;Thin film transistor (TFT) T3 first end C2 and the first sensing signal of pressure sensor 101 Output end b1 is electrically connected, and thin film transistor (TFT) T3 the second end C3 electrically connects with data signal line 113, and thin film transistor (TFT) T3 can root Believe according to the first sensing signal output end b1 and data of its control terminal C1 clock control signal control pressure sensors 101 received Number line 113 is turned on or off;Film crystal is by T4 first end C2 and the second sensing signal output end b2 of pressure sensor 101 Electrical connection, thin film transistor (TFT) T4 the second end C3 electrically connect with data signal line 114, and thin film transistor (TFT) T4 can be according to its control Hold the second sensing signal output end b2 and data signal line 114 of the clock control signal control pressure sensor 101 of C1 receptions It is turned on or off.
Optionally, in the display stage, thin film transistor (TFT) is according to the clock control signal that control terminal receives by pressure sensor The first power supply signal input, second source signal input part, the first sensing signal output end sensing signal or second sensing Signal output part disconnects with corresponding data signal line;In the pressure detecting stage, thin film transistor (TFT) according to control terminal receive when Clock control signal senses the first power supply signal input a1 of pressure sensor 10, second source signal input part a2, first Signal output part b1 sensing signals or the second sensing signal output end b2 turn on corresponding data signal line 11.
With reference to Fig. 1 and Fig. 2, still by taking pressure sensor 101 as an example, in the display stage, thin film transistor (TFT) T1, T2, T3 and T4 In the presence of respective control terminal C1, first end C2 and the second end C3 disconnect, i.e. the first power supply signal of pressure sensor 101 Input a1 exports with data signal line 111, second source signal input part a2 and data signal line 112, the first sensing signal Disconnected between end b1 and data signal line 113, the second sensing signal output end b2 and data signal line 114, now, drive mould Block 14 sends data-signal to data signal line 111,112,113 and 114, to realize the display of pixel cell 13 in display panel Function.In the pressure detecting stage, thin film transistor (TFT) T1, T2, T3 and T4 in the presence of respective control terminal C1, first end C2 with Second end C3 is turned on, i.e. the first power supply signal input a1 of pressure sensor 101 believes with data signal line 111, second source Number input a2 and data signal line 112, the first sensing signal output end b1 and data signal line 113, the second sensing signal are defeated Go out to hold and be both turned between b2 and data signal line 114, now drive module 14 passes through data signal line 111 and data signal line 112 believe to the first power supply signal input a1 and second source signal input part the a2 input offset voltage of pressure sensor 101 Number, when touching main body pressing display panel, the first sensing signal output end b1 of pressure sensor 101 and the second sensing signal Output end b2 exports pressure sensitivity detection signal to drive module 14, drive module by data signal line 113 and data signal line 114 14 can transmit the pressure sensitivity detection signal come according to data signal line 113 and data signal line 114 and calculate and touch main body and press The pressure size of display panel, and then realize the pressure detecting function of display panel.So, display panel utilizes switch element T Timesharing realizes display and pressure sensitivity detection, effectively prevent the mutual crosstalk between display signal and pressure sensitivity detection signal, and multiple The signal wire detected by the use of data signal line 11 as pressure sensitivity, do not influenceing the premise that display panel carries out display and pressure sensitivity detects Under, reduce the space for the display panel periphery circuit region NAA that the signal wire electrically connected with pressure sensor 10 occupies, be advantageous to The realization of display panel narrow frame.
Optionally, the control terminal of thin film transistor (TFT) is electrically connected with same clock cable corresponding to same pressure sensor Connect.Exemplary, can be by thin film transistor (TFT) T1, T2, T3 and T4 corresponding with pressure sensor 101 with reference to Fig. 1 and Fig. 2 Control terminal C1 electrically connects with same clock cable 15.When display panel is shown, clock cable 15 can be passed through Control thin film transistor (TFT) T1, T2, T3 and T4 first end C2 and the second end C3 is simultaneously turned off, and drive module 14 is to data signal line 111st, 112,113,114 data-signal is sent;When display panel carries out pressure detecting, can be controlled by clock cable 15 Thin film transistor (TFT) T1, T2, T3 and T4 first end C2 simultaneously turn on the second end C3, and drive module 14 passes through data signal line 111 and the first power supply signal input a1 from data signal line 112 to pressure sensor 101 and second source signal input part a2 Input offset voltage, the first sensing signal output end b1 of pressure sensor 101 and the second sensing signal output end b2 pass through number Pressure sensitivity detection signal is exported according to signal wire 113 and data signal line 114.Thin film transistor (TFT) corresponding to same pressure sensor is set Control terminal electrically connected with same clock cable, do not influence display panel carry out pressure detecting and display on the premise of, Reduce the quantity of the clock cable electrically connected with the control terminal of switch element, also just reduce clock cable and occupy display Panel periphery circuit region NAA space, is advantageous to the realization of display panel narrow frame.
It should be noted that Fig. 1 simply exemplarily sets the first power supply signal input of each pressure sensor 10 A1, second source signal input part a2, the first sensing signal output end b1 and the second sensing signal output end b2 open by one Close element T to electrically connect with corresponding data signal line 11, the embodiment of the present invention is not construed as limiting this, as long as meeting pressure sensor At least one in 10 four signal ends is electrically connected with data signal line 11 by switch element T and can reduce needs and occupy The quantity of the display panel periphery circuit region NAA signal wire electrically connected with pressure sensor 10, reduce and pressure sensor 10 The space for the display panel periphery circuit region NAA that the signal wire of electrical connection occupies, is advantageous to the realization of display panel narrow frame.Together Sample, as long as at least one in four signal ends of pressure sensor 10 is electrically connected by switch element T and data signal line 11 Connect, you can to carry out pressure-sensing by the conducting of switch element T first ends and the second end and the timesharing of shut-off display panel And display.
Optionally, each pixel cell in display panel includes at least one driving transistor, can set and pressure Thin film transistor (TFT) corresponding to sensor is located at same layer with driving transistor.Specifically, driving transistor in pixel cell Grid electrically connects with corresponding scan signal line, and source electrode electrically connects with corresponding data signal line, drain electrode and corresponding light-emitting junction Structure electrically connects, and driving transistor controls its source electrode and drain electrode to turn under the scan signal line effect that scan signal line inputs, i.e., Control data signal wire is electrically connected with corresponding ray structure, and data signal line is realized aobvious to ray structure input data signal Show the display function of panel.Fig. 3 is a kind of cross-sectional view of display panel provided in an embodiment of the present invention, such as Fig. 3 institutes Show, set thin film transistor (TFT) T12 and driving transistor T11 corresponding to pressure sensor to be located at same layer, film can be set brilliant Body pipe T12 and driving transistor T11 active layer 161, grid 162 and source electrode 163 and drain electrode 164 are corresponding positioned at same respectively Layer, you can so that thin film transistor (TFT) T12 and driving transistor T11 to be made with layer, to simplify the manufacture craft of display panel.
Optionally, pressure sensor can be set to be located at the periphery circuit region that viewing area both sides are oppositely arranged, positioned at periphery First power supply signal input of the different pressures sensor of circuit region the same side electrically connects with same data signal line, and/or, Second source signal input part positioned at the different pressures sensor of periphery circuit region the same side is electrically connected with same data signal line Connect.Specifically, the first power supply signal input of the different pressures sensor positioned at periphery circuit region the same side can be only set Electrically connected with same data signal line, can also only set second of the different pressures sensor positioned at periphery circuit region the same side Power supply signal input electrically connects with same data signal line, can also set the pressure sensor positioned at periphery circuit region simultaneously The first power supply signal input electrically connected with same data signal line, second source signal input part and same signal data are believed The electrical connection of number line.
Exemplary, as shown in figure 1, the first power supply signal of pressure sensor 101 and pressure sensor 102 can be set Input a1 electrically connects with data signal line 111, and the second source signal of pressure sensor 101 and pressure sensor 102 is defeated Enter to hold a2 to be electrically connected with data signal line 112;First power supply signal of pressure sensor 103 and pressure sensor 104 is set Input a1 electrically connects with data signal line 115, and the second source signal of pressure sensor 103 and pressure sensor 104 is defeated Enter to hold a2 to be electrically connected with data signal line 116.It can so be realized to display panel week by two data signal wires 11 The the first power supply signal input a1 and second source signal input part a2 of the pressure sensor 10 of side circuit region NAA the same sides are defeated Enter offset signal, reduce and the first power supply signal input a1 and second source signal input part a2 of pressure sensor 10 electricity The quantity of the signal wire of connection.
Optionally, pressure sensor can be set to be located at the periphery circuit region that viewing area both sides are oppositely arranged, positioned at periphery First sensing signal output end of the different pressures sensor of circuit region the same side electrically connects with same data signal line, and/or, The second sensing signal output end positioned at the different pressures sensor of periphery circuit region the same side is electrically connected with same data signal line Connect.First sensing signal output end time-sharing multiplex data signal line electrically connected with same data signal line, with same data Second sensing signal output end time-sharing multiplex data signal line of signal wire electrical connection.Specifically, can only it set positioned at week First sensing signal output end of the different pressures sensor of side circuit region the same side electrically connects with same data signal line, also may be used Only to set the second sensing signal output end of the different pressures sensor positioned at periphery circuit region the same side to believe with same data The electrical connection of number line, the first sensing signal of different pressures sensor positioned at periphery circuit region the same side can also be set defeated simultaneously Go out end to electrically connect with same data signal line, and the second sensing letter of the different pressures sensor positioned at periphery circuit region the same side Number output end electrically connects with same data signal line.
Exemplary, as shown in figure 1, the first sensing signal of pressure sensor 101 and pressure sensor 102 can be set Output end b1 electrically connects with data signal line 113, and the second sensing signal of pressure sensor 101 and pressure sensor 102 is defeated Go out to hold b2 to be electrically connected with data signal line 114;First sensing signal of pressure sensor 103 and pressure sensor 104 is set Output end b1 electrically connects with data signal line 117, and the second sensing signal of pressure sensor 103 and pressure sensor 104 is defeated Go out to hold b2 to be electrically connected with data signal line 118.By taking pressure sensor 101 and pressure sensor 102 as an example, pressure inspection is being carried out During survey, the switch element T electrically connected with pressure sensor 101 can be controlled to be both turned on, control electrically connects with pressure sensor 102 Switch element T be turned off, data signal line 113 and data signal line 114 are used for the first sensing of pressure sensor output 101 Signal output part b1 and the second sensing signal output end b2 pressure sensitivity detection signal.Subsequent time period, it can control and be passed with pressure The switch element T that sensor 102 electrically connects is both turned on, and controls the switch element T electrically connected with pressure sensor 101 to be turned off, number It is used for the senses of the first sensing signal output end b1 and second of pressure sensor output 102 according to signal wire 113 and data signal line 114 Survey the pressure sensitivity detection signal at signal output part b2 ends.The the first sensing signal output end electrically connected with same data signal line 11 The b1 time-sharing multiplexs data signal line 11, the second sensing signal output end b2 timesharing electrically connected with same data signal line 11 are answered With the data signal line 11, the sensing letters of the first sensing signal output end b1 and second of multiple pressure sensors 10 are effectively prevent Number output end b2 exports pressure sensitivity detection signal to same data signal line 11 simultaneously, causes the mutual string between pressure sensitivity detection signal Disturb, influence the pressure sensing result of display panel.Likewise, display panel week can be realized by two data signal wires 11 First sensing signal output end b1's of the pressure sensor 10 of side circuit region NAA the same sides and the second sensing signal output end b2 The output of pressure sensitivity detection signal, reduce defeated with the first sensing signal output end b1 of pressure sensor 10 and the second sensing signal Go out to hold the quantity of the signal wire of b2 electrical connections.
Exemplary, the first sensing signal output end of different pressures sensor and different data-signals can also be set Line electrically connects, and the second sensing signal output end of different pressures sensor electrically connects from different data line signal lines.Fig. 4 is this The overlooking the structure diagram for another display panel that inventive embodiments provide, as shown in figure 4, exemplarily only showing here Two pressure sensors 101 and 102, then the first sensing signal output end b1 and data that can set pressure sensor 101 believe Number line 113 electrically connects, and the first sensing signal output end b1 of pressure sensor 102 electrically connects with data signal line 119;Pressure is set Second sensing signal output end b2 of force snesor 101 electrically connects with data signal line 114, the second sense of pressure sensor 102 Survey signal output part b2 to electrically connect with data signal line 110, i.e. the first sensing signal output end of different pressures sensor and not Same data signal line electrical connection, the second sensing signal output end of different pressures sensor and different data line signal lines electricity Connection, pressure sensor 101 and pressure sensor 102 can carry out pressure sensitivity detection simultaneously.Optionally, switch element passes through conduction Lead and corresponding data signal line and the first power supply signal input, second source signal input part, the first sensing signal Output end sensing signal or the electrical connection of the second sensing signal output end sensing signal, conductive lead wire is with scan signal line positioned at same Layer.Fig. 5 is the cross-sectional view in the AA ' directions along Fig. 2.With reference to Fig. 2 and Fig. 5, by taking pressure sensor 101 as an example, set The first power supply signal input a1, second source signal input part a2, the first sensing signal output end b1 of pressure sensor 101 Electrically connected with the second sensing signal output end b2 by a switch element T with corresponding data signal line 11, switch element T is then Electrically connected, shown with the signal end of corresponding data signal line 11 and corresponding pressure sensor 101 by conductive lead wire 17 Example property, conductive lead wire 17 can be set to be located at same layer with scan signal line, that is, conductive lead wire 17 is set positioned at driving crystal The pipe T11 place film layer M1 layers of grid 51, data signal line 11 are located at M2 layers, i.e. driving transistor T11 source electrode 52 and drain electrode 53 place film layers.Optionally, display panel can also include multiple bridge structures.Switch element by conductive lead wire with it is corresponding Data signal line and the first power supply signal input, second source signal input part, the first sensing signal output end sensing letter Number or the electrical connection of the second sensing signal output end, conductive lead wire and data signal line be located at same layer, bridge structure is positioned at conductive At the crossover position of lead and data signal line, the conductive lead wire of both sides is electrically connected by bridge structure at crossover position, and across Bridge structure is located at different layers with data signal line.
Fig. 6 is the cross-sectional view of another conductive lead wire provided in an embodiment of the present invention and data signal line.Knot Fig. 2 and Fig. 6 is closed, by taking pressure sensor 101 as an example, display panel can also include multiple bridge structures 18, exemplarily set Bridge structure 18 is located at same layer, that is, the institute of grid 51 for setting bridge structure 18 to be located at driving transistor T11 with scan signal line In film layer M1 layers.When conductive lead wire 17 and data signal line 11 are located at same layer, i.e. driving transistor T11 source electrode 52 and drain electrode During 53 place film layer M2 layers, there is many places crossover position 19 in conductive lead wire 17, with data signal line 11 in order to prevent crossover position Conductor leading 17 and the short circuit of data signal line 11 at 19, can set bridge structure 18 so that conductive at crossover position 19 Lead 17 is realized by bridge structure 18 with the conductive lead wire 17 of both sides at the crossover position 19 of data signal line 11 and electrically connected.It is optional , display panel can also include a plurality of touching signals line and multiple touch control electrodes, each touch control electrode and at least one touch-control Signal wire electrically connects.Exemplary, Fig. 7 is the section of another conductive lead wire provided in an embodiment of the present invention and data signal line Structural representation, touch control electrode can be self-tolerant touch-control structures as shown in Figure 8, then touch control electrode is self-tolerant touch control electrode 21, touching signals line is self-tolerant touching signals line 201, every self-tolerant touching signals line 201 and a self-tolerant touch control electrode 21 electrical connections, self-tolerant touch control electrode 21 are arranged in array.With reference to Fig. 2, Fig. 7 and Fig. 8, bridge structure 18 can be set with holding certainly Formula touching signals line 201 is located at same layer, when conductive lead wire 17 and data signal line 11 are located at same layer, i.e. driving transistor During T11 53 place film layer M2 layers of source electrode 52 and drain electrode, conductive lead wire 17 is led with the both sides of 11 crossover position of data signal line 19 Electrical lead 17 can be electrically connected by being located at the realization of bridge structure 18 of same layer with self-tolerant touching signals line 201.
Exemplary, Fig. 9 is the cross-section structure of another conductive lead wire provided in an embodiment of the present invention and data signal line Schematic diagram, touch control electrode can be mutual capacitance type touch-control structures as shown in Figure 10, then touch control electrode drives including mutual capacitance type touch-control Electrode 22 and mutual capacitance type touch-control sensing electrode 23, touching signals line can include mutual capacitance type touch-control drive signal line 202 and mutual tolerance Formula touch sense signals line 203, mutual capacitance type touch-control drive signal line 202 electrically connect with mutual capacitance type touch-control driving electrodes 22, mutual tolerance Formula touch sense signals line 203 electrically connects with mutual capacitance type touch-control driving electrodes 23, mutual capacitance type touch-control driving electrodes 22 and mutual capacitance type Touch-control sensing electrode 23 insulate arranged in a crossed manner, then can set bridge structure and mutual capacitance type touch-control drive signal line positioned at same Layer, bridge structure can also be set to be located at same layer with mutual capacitance type touch sense signals line, Fig. 9 exemplarily sets bridge structure 18 are located at same layer with mutual capacitance type touch-control drive signal line 202.With reference to Fig. 2, Fig. 9 and Figure 10, when conductive lead wire 17 and data are believed When number line 11 is located at same layer, i.e. 53 place film layer M2 layers of driving transistor T11 source electrode 52 and drain electrode, conductive lead wire 17 and number Can be same by being located at mutual capacitance type touch-control drive signal line 202 according to the conductive lead wire 17 of the both sides of 11 crossover position of signal wire 19 The bridge structure 18 of layer realizes electrical connection.
Optionally, display panel can also include multiple light-shielding structures, and Figure 11 is another kind provided in an embodiment of the present invention The cross-sectional view of conductive lead wire and data signal line, with reference to Fig. 1, Fig. 2 and Figure 11, each pixel list in display panel Member 13 includes a driving transistor T11, and the corresponding driving transistor T11 of each light-shielding structure 24 raceway groove 25 sets, hidden Photo structure 24 can be for example light shade metal level, can set projection covering driving crystal of the light-shielding structure 24 on substrate 70 Projection of the pipe T11 raceway groove 25 on substrate 70, it can effectively prevent driving transistor T11 from producing photo-generated carrier and influenceing driving Transistor T11 switch performance.Unlike Fig. 6, Fig. 7 and Fig. 9, Figure 11 exemplarily sets bridge structure 18 to be driven with corresponding Dynamic transistor T11 light-shielding structure 24 is located at same layer, and conductive lead wire 17 is led with the both sides of 11 crossover position of data signal line 19 Electrical lead 17 can be electrically connected by being located at the realization of bridge structure 18 of same layer with light-shielding structure 24.
Figure 12 is a kind of structural representation of pressure sensor provided in an embodiment of the present invention.As shown in figure 12, pressure passes Sensor 10 can include the first inductive reactance R1, the second inductive reactance R2, the 3rd inductive reactance R3With the 4th inductive reactance R4Sensing Signal output part, the first inductive reactance R1First end m1 and the 4th inductive reactance R4First end m4 and the first power supply signal Input a1 is electrically connected, the first inductive reactance R1The second end n1 and the second inductive reactance R2First end m2 and first sensing Signal output part b1 is electrically connected, the 4th inductive reactance R4The second end n4 and the 3rd inductive reactance R3First end m3 and second Sensing signal output end b2 is electrically connected, the second inductive reactance R2The second end n2 and the 3rd inductive reactance R3The second end n3 with Second source signal input part a2 is electrically connected.Exemplary, the voltage of the first power supply signal input a1 inputs for example can be Positive voltage, the voltage of second source signal input part a2 inputs for example can be negative voltage or no-voltage, such as can be with Second source signal input part a2 is grounded.
Specifically, as the first power supply signal input a1 with the voltage on second source signal input part a2 in the presence of certain poor Value, i.e. when the first power supply signal input a1 and second source signal input part a2 is to 10 input offset voltage of pressure sensor, Each branch road has electric current to pass through in the electric-bridge circuit that four inductive reactances are formed.First inductive reactance R1, the second inductive reactance R2、 3rd inductive reactance R3With the 4th inductive reactance R4It is unsatisfactory for bridge balance conditionWhen, the first sensing signal output end B1 and the second sensing signal output end b2 current potential, it can now be sensed according to the first sensing signal output end b1 and second The pressure sensitivity detection signal of signal output part b2 outputs realizes the detection to the pressure of pressure sensor 10.
Figure 13 is the structural representation of another pressure sensor provided in an embodiment of the present invention.As shown in figure 13, pressure Sensor 10 can be bulk, be made up of semi-conducting material, and it is shaped as the polygon for comprising at least four sides, exemplary, Pressure sensor 10 can be in quadrangle.The first of pressure sensor 10 262 is oppositely arranged at 261 and second, the 3rd side 263 It is oppositely arranged with the 4th side 264, the first power supply signal input a1, second source signal input part a2, the first sense can be set Signal output part b1 and the second sensing signal output end b2 is surveyed to be respectively arranged on four sides of polygon, and the first power supply signal Side where input a1 and second source signal input part a2 is not attached to, the sensing letters of the first sensing signal output end b1 and second Side where number output end b2 is not attached to.
Specifically, the first power supply signal input a1 and second source signal input part a2 can pass through pressure sensor 10 First at 261 and second 262 to pressure sensor 10 apply bias voltage, when exist pressure pressing touch-control display panel When, the resistance of the straingauge 265 of pressure sensor 10 changes, its corresponding first sensing signal output end b1 and Corresponding change occurs for the compliance voltage of two sensing signal output end b2 outputs, then can be by detecting on straingauge 265 The pressure that the change detection pressure sensor 10 of voltage is subject to.
It should be noted that the embodiment of the present invention shows that accompanying drawing is the size of exemplary each element of expression, do not represent The actual size of each element in display panel.
The embodiment of the present invention is by setting the first power supply signal input of pressure sensor, second source signal to input At least one and data signal line in end, the first sensing signal output end and the second sensing signal output end, which corresponds, to be electrically connected Connect, the data signal line being multiplexed in display panel shows as the touch main body pressing that is used to detect electrically connected with pressure sensor Show the signal wire of panel stresses size, avoid the peripheral circuit that the signal wire electrically connected with pressure sensor utilizes display panel Walking line is entered in area, the problem of increasing display floater frame width, is the pressure that can complete pressure sensor using data signal line Power sensing function, substantially reduce the sky for the display panel periphery circuit region that the signal wire electrically connected with pressure sensor occupies Between, be advantageous to the realization of display panel narrow frame.In addition, pass through the signal in the pressure sensor electrically connected with data signal line Serialized switch elements between end and corresponding data signal line so that display panel can timesharing shown and pressure-sensing, Prevent mutual crosstalk between display signal and pressure-sensing signal.
The embodiment of the present invention additionally provides a kind of display device, and Figure 14 is a kind of display device provided in an embodiment of the present invention Structural representation.As shown in figure 14, display device 28 includes the display panel 27 in above-described embodiment, therefore the present invention is implemented The display device 28 that example provides also possesses the beneficial effect described by above-described embodiment, and here is omitted.Exemplary, such as scheme Shown in 15, display device 28 can be organic light-emitting display device, and display device 28 can include multiple organic light-emitting structures 31 And the driving transistor T11 electrically connected is corresponded with organic light-emitting structure 31, and it is exemplary, pressure sensor can be set 10 make with the same material of active layer 161 in driving transistor T11 with layer, to simplify the manufacture craft of display device.Or As shown in figure 16, display device 28 can also be liquid crystal display device, and display device can equally include multiple driving transistors T11, each driving transistor T11 electrically connect with corresponding pixel electrode 41, and liquid crystal molecule (not shown in Figure 16) is in pixel electricity Deflected in the presence of the electric field that pole 41 is formed with public electrode 42, realize the display function of liquid crystal display device, likewise, The same material of active layer 161 in pressure sensor 10 and driving transistor T11 can be set to make, to simplify display device Manufacture craft.Exemplary, display device 28 can be the electronic display units such as mobile phone, computer or television.
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 here, can carry out various significantly change, again for a person skilled in the art Adjustment and replacement are without departing from protection scope of the present invention.Therefore, although the present invention has been carried out by above example compared with For detailed description, but the present invention is not limited only to above example, without departing from the inventive concept, can be with Including other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.

Claims (14)

  1. A kind of 1. display panel, it is characterised in that including:
    Viewing area and around the periphery circuit region of the viewing area;
    A plurality of data signal line and multi-strip scanning signal wire, the data signal line and scan signal line formation arranged in a crossed manner Multiple pixel cells;
    Multiple pressure sensors positioned at the periphery circuit region, each pressure sensor input including the first power supply signal End, second source signal input part, the first sensing signal output end and the second sensing signal output end;First power supply signal Input and the second source signal input part are used for the pressure sensor input offset voltage signal;First sense Survey signal output part and the second sensing signal output end is used to export pressure sensitivity detection signal from the pressure sensor;
    First power supply signal input, the second source signal input part, the first sensing signal output end and institute At least one corresponded by a switch element with a data signal line stated in the second sensing signal output end is electrically connected Connect.
  2. 2. display panel according to claim 1, it is characterised in that
    The pressure sensor is located at the periphery circuit region that the viewing area both sides are oppositely arranged;
    Positioned at described periphery circuit region the same side the different pressure sensors first power supply signal input with it is same The one data signal line electrical connection;
    And/or the second source signal input of the different pressure sensors positioned at described periphery circuit region the same side End electrically connects with the same data signal line.
  3. 3. display panel according to claim 1, it is characterised in that
    The pressure sensor is located at the periphery circuit region that the viewing area both sides are oppositely arranged;
    Positioned at described periphery circuit region the same side the different pressure sensors the first sensing signal output end with it is same The one data signal line electrical connection;
    And/or second sensing signal output of the different pressure sensors positioned at described periphery circuit region the same side End electrically connects with the same data signal line;
    The the first sensing signal output end time-sharing multiplex data signal line electrically connected with the same data signal line;
    The the second sensing signal output end time-sharing multiplex data signal line electrically connected with the same data signal line.
  4. 4. display panel according to claim 1, it is characterised in that the switch element by conductive lead wire with it is corresponding The data signal line and first power supply signal input, the second source signal input part, first sensing Signal output part sensing signal or the second sensing signal output end sensing signal electrical connection;
    The conductive lead wire is located at same layer with the scan signal line.
  5. 5. display panel according to claim 1, it is characterised in that also include:
    Multiple bridge structures;
    The switch element by conductive lead wire and the corresponding data signal line and first power supply signal input, The second source signal input part, the first sensing signal output end sensing signal or the second sensing signal output end Electrical connection;
    The conductive lead wire is located at same layer with the data signal line;
    The bridge structure is located at the crossover position of the conductive lead wire and the data signal line, two at the crossover position The conductive lead wire of side is electrically connected by the bridge structure, and the bridge structure and the data signal line are positioned at different Layer.
  6. 6. display panel according to claim 5, it is characterised in that also include:
    A plurality of touching signals line and multiple touch control electrodes, each touch control electrode are electrically connected with least one touching signals line Connect;
    Multiple light-shielding structures, each pixel cell comprise at least a driving transistor, and each light-shielding structure is corresponding The raceway groove of one driving transistor is set;
    The bridge structure is located at same layer with the scan signal line, the touching signals line or the light-shielding structure.
  7. 7. display panel according to claim 1, it is characterised in that the switch element is located at the periphery circuit region.
  8. 8. display panel according to claim 1, it is characterised in that the switch element is thin film transistor (TFT), Mei Gesuo Stating thin film transistor (TFT) includes control terminal, first end and the second end;
    The control terminal of the thin film transistor (TFT) electrically connects with a clock cable, the first end of the thin film transistor (TFT) with it is corresponding First power supply signal input, the second source signal input part, the first sensing signal output end sensing signal Or the second sensing signal output end electrical connection, the second end of the thin film transistor (TFT) and the corresponding data signal line electricity Connection;
    The thin film transistor (TFT) is used to be inputted first power supply signal according to the clock control signal that the control terminal receives End, the second source signal input part, the first sensing signal output end sensing signal or second sensing signal are defeated Go out end to be turned on or off with the corresponding data signal line.
  9. 9. display panel according to claim 8, it is characterised in that the film corresponding to the same pressure sensor The control terminal of transistor electrically connects with the same clock cable.
  10. 10. display panel according to claim 8, it is characterised in that
    In the display stage, the thin film transistor (TFT) is according to the clock control signal that the control terminal receives by the pressure sensor First power supply signal input, the second source signal input part, the first sensing signal output end sensing letter Number or the second sensing signal output end and the corresponding data signal line disconnect;
    In the pressure detecting stage, the thin film transistor (TFT) passes the pressure according to the clock control signal that the control terminal receives First power supply signal input of sensor, the second source signal input part, the first sensing signal output end sense Signal or the second sensing signal output end is surveyed to turn on the corresponding data signal line.
  11. 11. display panel according to claim 8, it is characterised in that each pixel cell comprises at least a drive Dynamic transistor;
    The thin film transistor (TFT) is located at same layer with the driving transistor.
  12. 12. display panel according to claim 1, it is characterised in that the pressure sensor include first sensing resistance, Second sensing resistance, the 3rd sensing resistance and the 4th sensing resistance;
    The first end and first power supply signal of the first end of the first sensing resistance and the 4th sensing resistance are defeated Enter the first end and the described first sensing of end electrical connection, the second end of the first sensing resistance and the second sensing resistance Signal output part electrically connects, the first end and described the of the second end of the 4th sensing resistance and the 3rd sensing resistance Two sensing signal output ends electrically connect, it is described second sensing resistance the second end and it is described 3rd sensing resistance the second end with The second source signal input part electrical connection.
  13. 13. display panel according to claim 1, it is characterised in that the pressure sensor is bulk, by semiconductor material Material is made, and it is shaped as the polygon for comprising at least four sides;
    First power supply signal input, the second source signal input part, the first sensing signal output end and institute State the second sensing signal output end to be respectively arranged on four sides of the polygon, where first power supply signal input While with second source signal input part where while be not attached to, the side where the first sensing signal output end with second sense Side where surveying signal output part is not attached to.
  14. 14. a kind of display device, it is characterised in that including the display panel described in claim any one of 1-13.
CN201710882863.XA 2017-09-26 2017-09-26 A kind of display panel and display device CN107527600A (en)

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Application publication date: 20171229