CN107632435A

CN107632435A - A kind of pressure detection method of display panel, display device and display panel

Info

Publication number: CN107632435A
Application number: CN201710896316.7A
Authority: CN
Inventors: 黄懿兵; 彭超; 康佳琪; 朴哲; 邱英彰; 沈柏平
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2018-01-26
Anticipated expiration: 2037-09-28
Also published as: CN107632435B

Abstract

The present invention provides a kind of pressure detection method of display panel, display device and display panel, is related to display technology field, display panel includes：First substrate, second substrate, sealant；Pressure sensor includes construction identical first pressure sensor and second pressure sensor, first pressure sensor are located at sealant and covered close to the side of viewing area, second pressure sensor by sealant；At least one first pressure sensor and second pressure sensor form first pressure sensor group, the reference signal of the output signal of second pressure sensor as any first pressure sensor output signal；And/or at least one first pressure sensor and multiple second pressure sensors form second pressure sensor group, the reference signal of the average value of whole second pressure sensor output signals as any first pressure sensor output signal.The present invention improves the degree of accuracy of pressure sensor result of detection.

Description

A kind of pressure detection method of display panel, display device and display panel

Technical field

The present invention relates to display technology field, more particularly to the pressure of a kind of display panel, display device and display panel Detection method.

Background technology

At present, the display panel with touch controllable function is widely used in mobile phone, flat board as a kind of information input tool In the various display products of computer, the information enquiry machine etc. in public place hall.So, user only needs finger touch display panel On mark can be realized as operation to the electronic equipment, eliminate user to other equipment (such as keyboard and mouse) according to Rely, make man-machine interaction more simple.

In order to preferably meet the needs of user, generally it is provided for detecting user's touch display panel in display panel When touch-control pressure value size pressure sensor, display panel is gathered position of touch information, and can adopt Collect the size of touch-control pressure value, to enrich the application of touch-control Display Technique.

Pressure sensor is typically formed into Wheatstone bridge in existing design, and the output signal value of Wheatstone bridge is with showing Show that the size of the deformation quantity occurred when panel is under pressure is relevant, the output signal value of Wheatstone bridge also suffers from environment temperature Influence, therefore temperature have impact on the degree of accuracy of pressure sensor result of detection.

The content of the invention

The present invention provides a kind of pressure detection method of display panel, display device and display panel, and temperature is reduced to realize The influence to pressure sensor is spent, improves the degree of accuracy of pressure sensor result of detection.

In a first aspect, the embodiments of the invention provide a kind of display panel, including viewing area and around the viewing area Non-display area, the display panel include：

First substrate；

Second substrate, it is oppositely arranged with the first substrate；

Sealant, between the first substrate and the second substrate, and the sealant is positioned at described non-display Area；

Pressure sensor, the pressure sensor are located at the first substrate towards the side of the second substrate；

The pressure sensor includes construction identical first pressure sensor and second pressure sensor, first pressure Force snesor is located at the sealant and covered close to the side of the viewing area, the second pressure sensor by the sealant Lid；Wherein,

At least one first pressure sensor and a second pressure sensor form first pressure sensor Group, in the same first pressure sensor group, the output signal of the second pressure sensor is as any described The reference signal of one pressure sensor output signal；And/or

At least one first pressure sensor forms second pressure sensor with multiple second pressure sensors Group, in the same second pressure sensor group, all average value conducts of the second pressure sensor output signal The reference signal of any first pressure sensor output signal.

Second aspect, the embodiments of the invention provide a kind of display device, including the display panel described in first aspect.

The third aspect, the embodiments of the invention provide a kind of pressure detection method of display panel, the display panel bag Viewing area and the non-display area around the viewing area are included, the display panel includes：

First substrate；

Second substrate, it is oppositely arranged with the first substrate；

At least one first pressure sensor forms second pressure sensor with multiple second pressure sensors Group, in the same second pressure sensor group, all average value conducts of the second pressure sensor output signal The reference signal of any first pressure sensor output signal；

The pressure detection method includes：

In the first pressure sensor group, believe the output signal of the second pressure sensor as the first reference Number, output signal and first reference signal to the first pressure sensor are handled to obtain the first pressure The pressure detection signal value of sensor；And/or

In the second pressure sensor group, using the average value of all second pressure sensor output signals as Second reference signal, output signal and second reference signal to the first pressure sensor are handled to obtain institute State the pressure detection signal value of first pressure sensor.

Display panel provided by the invention includes first substrate, second substrate and between first substrate and second substrate Sealant, and construction identical first pressure sensor and second pressure sensor, first pressure sensor is positioned at envelope frame The deformation quantity that glue occurs close to viewing area side, during for being under pressure according to display panel carries out pressure detection, while first The output signal of pressure sensor also suffers from the influence of temperature；Second pressure sensor is covered by sealant, therefore display surface The deformation that plate is subject to will not cause the deformation of second pressure sensor or caused deformation can be ignored, and second pressure passes The output signal of sensor can be regarded as not to be influenceed by ambient pressure, only affected by temperature.At least one first pressure Sensor and a second pressure sensor form first pressure sensor group, and in same first pressure sensor group, Reference signal of the output signal of second pressure sensor as any one first pressure sensor output signal；At least one One pressure sensor forms second pressure sensor group with multiple second pressure sensors, and in same second pressure sensor In group, the ginseng of the average value of whole second pressure sensor output signals as any one first pressure sensor output signal Signal is examined, display panel provided by the invention includes first pressure sensor group and/or second pressure sensor group, and first In pressure sensor group and second pressure sensor group, the output signal of any one first pressure sensor has corresponding second Pressure sensor provides reference signal for it, to reduce influence of the temperature to first pressure sensor, improves first pressure and passes The degree of accuracy of sensor result of detection, that is, improve the degree of accuracy of pressure sensor result of detection.

Brief description of the drawings

Fig. 1 is a kind of overlooking the structure diagram of display panel provided in an embodiment of the present invention；

Fig. 2 is the cross-sectional view in the AA ' directions along Fig. 1；

Fig. 3 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention；

Fig. 4 is the cross-sectional view in the BB ' directions along Fig. 3；

Fig. 5 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention；

Fig. 6 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention；

Fig. 7 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention；

Fig. 8 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention；

Fig. 9 is the structural representation of a kind of first pressure sensor provided in an embodiment of the present invention and second pressure sensor Figure；

Figure 10 shows for the structure of another first pressure sensor provided in an embodiment of the present invention and second pressure sensor It is intended to；

Figure 11 is the circuit structure of a kind of first pressure sensor provided in an embodiment of the present invention and second pressure sensor Schematic diagram；

Figure 12 is the circuit knot of another first pressure sensor provided in an embodiment of the present invention and second pressure sensor Structure schematic diagram；

Figure 13 is a kind of structural representation of liquid crystal display panel provided in an embodiment of the present invention；

Figure 14 is a kind of structural representation of organic electroluminescence display panel provided in an embodiment of the present invention；

Figure 15 is a kind of structural representation 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 overlooking the structure diagram of display panel provided in an embodiment of the present invention, and Fig. 2 is the AA ' sides along Fig. 1 To cross-sectional view, with reference to shown in Fig. 1 and Fig. 2, display panel includes viewing area 101 and around the non-of viewing area 101 Viewing area 102, display panel includes：First substrate 10, second substrate 20, sealant 30 and pressure sensor 40.Second substrate 20 are oppositely arranged with first substrate 10.Sealant 30 is between first substrate 10 and second substrate 20, and sealant 30 is located at Non-display area 102.Pressure sensor 40 is located at first substrate 10 includes structure towards the side of second substrate 20, pressure sensor 40 Make identical first pressure sensor 41 and second pressure sensor 42, i.e. first pressure sensor 41 and second pressure sensor 42 are made using same material and technological process, and first pressure sensor 41 has identical electricity with second pressure sensor 42 Line structure and physical arrangement.First pressure sensor 41 is located at sealant 30 close to the side of viewing area 101, second pressure sensing Device 42 is covered by sealant 30.First pressure sensor 41 shown in Fig. 1 and Fig. 2 and the no overlap of sealant 30, in other implementations First pressure sensor 41 and sealant 30 can also be set to have in mode, and part is overlapping, as long as ensureing first pressure sensor 41 It is not completely covered by sealant 30.Wherein, at least one first pressure sensor 41 and a second pressure sensor 42 First pressure sensor group 401 is formed, exemplarily only shows that display panel includes 3 first pressure sensor groups in Fig. 1 Include 1,2 and 3 first pressure sensor 41, present invention implementation pair in 401,3 first pressure sensor groups 401 respectively Including the quantity of first pressure sensor group 401 and each first pressure sensor group 401 in display panel includes The quantity of one pressure sensor 41 does not limit.In same first pressure sensor group 401, second pressure sensor 42 Reference signal of the output signal as any one output signal of first pressure sensor 41, i.e. sensed in same first pressure In device group 401, multiple first pressure sensors 41 share the offer reference signal that same second pressure sensor 42 is.

Fig. 3 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention, and Fig. 4 is the BB ' along Fig. 3 The cross-sectional view in direction, with reference to shown in Fig. 3 and Fig. 4, at least one first pressure sensor 41 and multiple second pressures Sensor 42 forms second pressure sensor group 402, exemplarily only shows that display panel includes 3 second pressures in Fig. 3 Include 2 second pressure sensors 42 in 402,3 second pressure sensor groups 402 of sensor group, the present invention implement for Display panel, which includes the quantity of second pressure sensor group 402 and each second pressure sensor group 402, includes second The quantity of pressure sensor 42 does not limit.In same second pressure sensor group 402, whole second pressure sensors 42 Reference signal of the average value of output signal as any one output signal of first pressure sensor 41, i.e. same second In pressure sensor group 402, all first pressure sensors 41 share the multiple second pressure sensors 42 of identical and are Offer reference signal, the average value of all output signals of second pressure sensor 42 is as reference signal.

On the one hand, a first pressure sensor 41 only needs a second pressure in first pressure sensor device group 401 Sensor 42 provides reference signal for it, and in second pressure sensor group 402 a first pressure sensor 41 then need it is more Individual (2 are exemplarily set in Fig. 3) second pressure sensor 42 provides reference signal, therefore first pressure sensor group for it 401 for second pressure sensor group 402, can set less second pressure sensor 42, advantageously reduce into This；On the other hand, if first pressure sensor group 401 and second pressure sensor group 402 formed objects regional extent Interior, then second pressure sensor group 402 including multiple second pressure sensors 42, multiple second pressure sensors 42 due to being in Different position, and being influenceed by different temperature, using the average value of the output signal of multiple second pressure sensors 42 as Reference signal is relative to only for a second pressure sensor 42, more reflecting in the region that temperature passes to first pressure The influence of sensor 41, also can be that the first pressure sensor 41 in the regional extent provides more accurate reference signal.

Fig. 5 is the overlooking the structure diagram of another display panel provided in an embodiment of the present invention, as shown in figure 5, display Panel both includes first pressure sensor group 401, includes second pressure sensor group 402 again.The embodiment of the present invention is for first The position and quantity of pressure sensor group and second pressure sensor group do not limit.

Display panel provided in an embodiment of the present invention includes first substrate, second substrate and positioned at first substrate and the second base Sealant between plate, and construction identical first pressure sensor and second pressure sensor, first pressure sensor position The deformation quantity occurred in sealant close to viewing area side, during for being under pressure according to display panel carries out pressure detection, together When first pressure sensor output signal also suffer from the influence of temperature；Second pressure sensor is covered by sealant, therefore The deformation that display panel is subject to will not cause the deformation of second pressure sensor or caused deformation can be ignored, and second The output signal of pressure sensor can be regarded as not to be influenceed by ambient pressure, only affected by temperature.At least one One pressure sensor and a second pressure sensor form first pressure sensor group, and in same first pressure sensor In group, the reference signal of the output signal of second pressure sensor as any one first pressure sensor output signal；With/ Or, at least one first pressure sensor forms second pressure sensor group with multiple second pressure sensors, and same In second pressure sensor group, the average value of whole second pressure sensor output signals senses as any one first pressure The reference signal of device output signal, display panel provided in an embodiment of the present invention include first pressure sensor group and/or second Pressure sensor group, and in first pressure sensor group and second pressure sensor group, any one first pressure sensor Output signal has corresponding second pressure sensor to provide reference signal for it, to reduce temperature to first pressure sensor Influence, improve first pressure pressure sensor result of detection the degree of accuracy, that is, improve pressure sensor result of detection it is accurate Degree.

It is assumed that in first pressure sensor group, temperature and first pressure at first pressure sensor position pass Because error amount caused by temperature is respectively the first temperature and the first error amount in the output signal of sensor, second pressure sensor Temperature at position and in the output signal of second pressure sensor because error amount caused by temperature is respectively second Temperature and the second error amount, and because first pressure sensor is identical with the construction of second pressure sensor, then the first error amount There is identical first function relation between the first temperature and between the second error amount and second temperature.

Exemplarily, display panel includes first pressure sensor group, and the second pressure in first pressure sensor group passes For sensor due to being covered by sealant, its output signal is only affected by temperature, the output signal of second pressure sensor both generation Influence of the temperature for the output signal of second pressure sensor at table second pressure sensor position, wherein, when upper State the first temperature it is identical or very close with second temperature when, can be by by the output signal of first pressure sensor and the The output signal of two pressure sensors is directly subtracted each other, i.e., using the output signal of second pressure sensor as therewith with the first of group The reference signal of pressure sensor, influence of the temperature to first pressure sensor is being reduced and (even eliminated), is improving the first pressure On the basis of forcing the force snesor result of detection degree of accuracy, the pressure detection signal value of first pressure sensor is obtained, and when upper When stating the first temperature and larger second temperature difference, it is assumed that the functional relation between the first temperature and second temperature is second function Relation, then after by above-mentioned second function relation and the conversion of first function relation, the first error amount and second can be obtained and missed The 3rd functional relation between difference, and the 3rd functional relation is based on, using the output signal of second pressure sensor as with reference to letter Number, then can equally influence of the temperature to first pressure sensor be being reduced and (even eliminated), improve first pressure pressure and pass The pressure detection signal value of first pressure sensor is obtained on the basis of the sensor result of detection degree of accuracy.

Exemplarily, second pressure sensor group includes two second pressure sensors, two second pressure sensors Second temperature is respectively T1 and T2, and the second error amount of two second pressure sensors accordingly has for F1 and F2, T1 and F1 First function relation, T2 and F2 have first function relation.Display panel includes second pressure sensor group, second pressure sensing For second pressure sensor in device group due to being covered by sealant, its output signal is only affected by temperature, and second pressure passes The output signal of sensor had both represented output letter of the temperature for second pressure sensor at second pressure sensor position Number influence, wherein, can be by the way that first pressure be sensed when above-mentioned first temperature is identical or very close with T1, T2 The output signal of device and F1, F2 average value, i.e. (F1+F2)/2, directly subtract each other, i.e., by whole in second pressure sensor group the Reference signal of the average value of two pressure sensor output signals as the first pressure sensor of same group therewith, is being reduced (very As for elimination) influence of the temperature to first pressure sensor, the base of the raising first pressure pressure sensor result of detection degree of accuracy On plinth, the pressure detection signal value of first pressure sensor is obtained, and when above-mentioned first temperature and T1, T2 difference are larger, it is false Fixed functional relation between first temperature and T1 and T2 has between the 4th functional relation, T1 and T2 and (F1+F2)/2 5th functional relation, then after being changed by above-mentioned 4th functional relation, the 5th functional relation and first function relation, it can obtain To the 6th functional relation between the first error amount and (F1+F2)/2, and the 6th functional relation is based on, with second pressure sensor The average value of whole second pressure sensor output signals is reference signal in group, then can equally reduce and (even eliminate) Influence of the temperature to first pressure sensor, improve and obtain the on the basis of the first pressure pressure sensor result of detection degree of accuracy The pressure detection signal value of one pressure sensor.

It should be noted that in order that pressure sensor can experience the deformation of display panel, and according to display panel Deformation quantity realize pressure detection, sealant overburden pressure sensor will not be made in the prior art, i.e., only set in the prior art First pressure sensor, is not provided with second pressure sensor, and the embodiment of the present invention is then in order to reduce temperature to first pressure The influence of sensor, set and provide reference signal without the second pressure sensor of pressure detection for it.

Alternatively, with reference to figure 1 and Fig. 2, in same first pressure sensor group 401, first pressure sensor 41 or Second pressure sensor 42 in the first direction on size be h, first pressure sensor 41 has first just to first substrate 10 Projection, second pressure sensor 42 have the second orthographic projection to first substrate 10, any point and the second just throwing in the first orthographic projection Distance farthest between any point is H on shadow, and 2h≤H≤6h, first direction are that the second orthographic projection is pointed in the first orthographic projection Direction (i.e. the geometric center of gravity of the first orthographic projection points to the direction of the second orthographic projection geometric center of gravity), wherein, first pressure sensor 41 can be located at same layer or positioned at different layers, the invention is not limited in this regard with second pressure sensor 42.With pressure in Fig. 1 Force snesor 40 (including construction identical first pressure sensor 41 and second pressure sensor 42) sets and is shaped as with layer Square carries out example, and the center of square first pressure sensor 41 is pointed in the second pressure sensor 42 of square The direction of the heart is first direction, and square center refers to two cornerwise intersection points of square.When in the first orthographic projection When distance H farthest between any point meets 2h≤H≤6h on any point and the second orthographic projection, same first pressure sensor Second pressure sensor 42 in group 401 is arranged near first pressure sensor 41, first pressure sensor 41 and second Pressure sensor 42 has a similar temperature, therefore first pressure sensor 41 and second pressure sensor 42 are by the shadow of temperature The degree of sound is similar, and for the second pressure sensor 42 in first pressure sensor group 401 due to being covered by sealant 30, it exports letter Number only affected by temperature, the output signal of second pressure sensor 42 had both represented the position of second pressure sensor 42 Locate influence of the temperature for the output signal of second pressure sensor 42, because first pressure sensor 41 and second pressure sense Device 42 constructs identical, and first pressure sensor 41 and 42 degree affected by temperature of second pressure sensor are same or like, The output signal of first pressure sensor 41 and the output signal of second pressure sensor 42 can directly be subtracted each other, i.e., by second Reference signal of the output signal of pressure sensor 42 as the first pressure sensor 41 of same group therewith, is being reduced (even Eliminate) influence of the temperature to first pressure sensor 41, the base of the result of detection degree of accuracy of raising first pressure pressure sensor 41 On plinth, the pressure detection signal value of first pressure sensor 41 is obtained.

Alternatively, with reference to figure 1 and Fig. 2, first pressure sensor 41 or second pressure sensor 42 in the first direction on Size is h, 50 μm≤h≤120 μm.

Specifically, when selection sets h to be less than 50 μm, pressure sensor (including construction identical first pressure sensor 41 and second pressure sensor 42) size it is too small, add the technology difficulty for making pressure sensor, and pressure sensor Smaller, the ability of pressure sensor sensing pressure is with regard to smaller；And when selection sets h to be more than 120 μm, the size of pressure sensor It is too big, cause the frame of display panel to increase, disagreed with narrow frame design trend, that is, be unfavorable for realizing narrow frame, and pressure Sensor is bigger, and required driving voltage is bigger, adds the power consumption of display panel.The technology that the embodiment of the present application is provided Scheme Choice set 50 μm≤h≤120 μm, can have appropriate size and resistance ensuring pressure sensor 40, with compared with While high pressure detection sensitivity, the too many area of non-display area 102 will not be taken, and influences the display effect of display panel Fruit.

Alternatively, with reference to figure 1, display panel include first at 51, second the 52, the 3rd in 53 and the 4th while 54, first When 51 length is more than second 52 and the 4th side 54 length, the 3rd when 53 length is more than second 52 and the 4th side 54 Length, first pressure sensor group 401 can be located at first at 51, second the 53, the 3rd in 53 and the 4th while 54 in it is any On one or more persons.As shown in figure 1, exemplary, multiple first pressure sensor groups 401 are respectively positioned at the first side 51, the Three at 53 and the 4th 54 on, and in other embodiments, multiple first pressure sensor groups 401 can also be set simultaneously Respectively positioned at display panel first at 51, second the 52, the 3rd in 53 and the 4th while 54 in other any three sides, or, Multiple first pressure sensor groups 401 can also simultaneously be distributed in respectively first at 51, second the 52, the 3rd side 53 and the 4th Any one of side 54, both or four on, the embodiment of the present invention is not limited this.And it is understood that it is general and Speech, while pressure sensor group is set relative to the only setting pressure sensor group in a line in the multiple summits of display panel For, the deformation of display panel is easier to be detected exactly.

Alternatively, set with reference to figure 2 and Fig. 4, first pressure sensor 41 with second pressure sensor 42 with layer.By first Pressure sensor 41 is set with second pressure sensor 42 with layer, is sensed relative to by first pressure sensor 41 and second pressure Device 42 is arranged on for different layers, and the temperature difference between first pressure sensor 41 and second pressure sensor 42 is smaller, and First pressure sensor 41 and second pressure sensor 42 are set with layer, first pressure can be made simultaneously in same technique Sensor 41 and second pressure sensor 42, simplify manufacture craft.It should be noted that the first pressure sensing set with layer Device and second pressure sensor can both be located in first pressure sensor group, can be located at again in second pressure sensor group, The embodiment of the present invention is not limited this.

Alternatively, as shown in fig. 6, the plan structure that Fig. 6 is another display panel provided in an embodiment of the present invention is illustrated Figure, each first pressure sensor group 401 only include a first pressure sensor 401.The skill that the embodiment of the present invention is provided Art scheme, only have a first pressure sensor for the second pressure sensor in same pressure sensor group, therefore not There is a situation where in same pressure sensor group between multiple first pressure sensors it is possible that signal interference, ensure With the degree of accuracy for improving first pressure sensor result of detection.

Alternatively, with reference to figure 6, in first pressure sensor group 401, second pressure sensor 42 points to first pressure sensing The direction of device 41, consistent with the direction of the sensing of non-display area 102 viewing area 101, i.e., first pressure sensor 41 adjoins the second pressure Force snesor 42 is set, and first pressure sensor 41 is between second pressure sensor 42 and viewing area 101.The present invention is implemented In the technical scheme that example provides, first pressure sensor 41 adjoins setting, first pressure sensor with second pressure sensor 42 41 and the space that takes on the direction that non-display area is pointed to along viewing area of second pressure sensor 42 it is smaller, relative to first Pressure sensor 41 and second pressure sensor 42 have for certain intervals on the direction for pointing to non-display area along viewing area, this The display panel that inventive embodiments provide can have narrower frame design.

Alternatively, as shown in fig. 7, the plan structure that Fig. 7 is another display panel provided in an embodiment of the present invention is illustrated Figure, each first pressure sensor group 401 include multiple first pressure sensors 41, and in same first pressure sensor group In 401, each first pressure sensor 41 is equal with the distance between second pressure sensor 42.

Specifically, exemplary with reference to figure 7, each first pressure sensor group 401 can include two first pressures and pass Sensor 41 and a second pressure sensor 42, first pressure sensor 41 are set with second pressure sensor 42 with layer, and In same first pressure sensor group 401, the distance between each first pressure sensor 41 and second pressure sensor 42 It is all equal, in order to make it easy to understand, by two first pressure sensors 41 in first pressure sensor group 401 respectively with different " 411 " and " 412 " expression is numbered, in same first pressure sensor group 401, second pressure sensor 42 and first first The distance between pressure sensor 411 be equal between second pressure sensor 42 and second first pressure sensor 412 away from From.If second pressure sensor 42 and the distance between first first pressure sensor 411 are smaller, and second pressure passes Sensor 42 and the distance between second first pressure sensor 412 are bigger, then second first pressure sensor 412 uses Second pressure sensor 42 provides the error of reference signal for it will be bigger, and sets first first pressure sensor 411st, second first pressure sensor 412 and the distance between second pressure sensor 42 are all equal, can make two first Pressure sensor is controlled for the application condition equilibrium of the reference signal of its offer and in certain model using second pressure sensor In enclosing, in order to handle reference signal, it is to be understood that in a first pressure sensor group, may also comprise More than two first pressure sensor, and the first pressure sensor in same first pressure sensor group is and second pressure Sensor is placed equidistant.

Alternatively, as shown in figure 8, the plan structure that Fig. 8 is another display panel provided in an embodiment of the present invention is illustrated Figure, display panel include the first turning 61, the second turning 62, the 3rd turning 63 and the 4th turning 64, wherein, the first turning 61, Second turning 62, the 3rd turning 63 and the 4th turning 64 refer respectively to, and inward flange of the sealant 30 close to viewing area 101 prolongs The outward flange of long line and display panel non-display area 102 intersects four closed areas surrounded, and the first turning 61 and second is turned It is the first side 51 of display panel between angle 62, is the second side 52 of display panel between the second turning 62 and the 3rd turning 63, It is the 3rd side 53 of display panel between 3rd turning 63 and the 4th turning 64, is aobvious between the 4th turning 64 and the first turning 61 Show the 4th side 54 of panel.Second pressure sensor group includes multiple first pressure sensors 41 and four second pressure sensors 42, multiple first pressure sensors 41 respectively positioned at display panel first at 51, second the 52, the 3rd in 53 and the 4th while 54 In any one or more persons on.As shown in figure 8, it is exemplary, set multiple first pressure sensors 41 respectively positioned at display The first of panel at 51 and the 3rd 53 on, and in other embodiments, multiple first pressure sensors 41 can also be set Respectively positioned at display panel first at 51, second the 52, the 3rd in 53 and the 4th while 54 in other any both sides, or, Positioned at display panel first at 51, second the 52, the 3rd in 53 and the 4th while 54 in any one, on three or four, The position of first pressure sensor 41 can be specifically configured according to product requirement.Four second pressure sensors 42 distinguish position It is at the first turning 61, the second turning 62, the 3rd turning 63 and the 4th turning 64 and different.In display panel, if Driving IC is arranged at the 4th side 54, then the temperature in general at the 4th side 54 is highest in whole display panel , and the temperature at the second side 52 is minimum in whole display panel, temperature and the 4th turning at the first turning 61 Temperature at 64 is different, and the second turning 62 is different with the temperature at the 3rd turning 63, wherein, although the temperature at the first turning 61 There is certain difference with the temperature at the second turning 62, but it is simultaneously non-specifically big, using four corner's second pressure sensors The average value of 42 output signal can also weaken temperature to a certain extent as the reference signal of first pressure sensor 41 To harmful effect caused by first pressure sensor 41.In the embodiment of the present invention, the second pressure sensing of four corners is selected Reference signal of the average value of the output signal of device 42 as any of whole display panel first pressure sensor 41, can The quantity for the second pressure sensor for needing to set on a display panel is largely reduced, cost can be saved.

Alternatively, as shown in figure 8, multiple first pressure sensors 41 can be set respectively positioned at first at 51 and the 3rd At 53, i.e., two long edge positions of display panel, usual technical staff can pass the drive circuit of pressure sensor 40 and pressure The structure settings such as the signal processing circuit of sensor 40 and driving IC, flexible PCB are the (such as the 4th at the short side of display panel Side 54), thus be provided with display panel driving IC short side at there is no enough spaces to accommodate pressure sensor 40；And if Pressure sensor 40 is arranged at another short side relative with driving the structures such as IC, flexible PCB (such as the second side 52), then need to set longer connecting line to connect the drive circuit and pressure of pressure sensor 40 and pressure sensor 40 The signal processing circuit of sensor 40, and connecting line needs short brink (such as the second side 52 and by two articles of display panels Four while 54) and one article of display panel long side (such as when first 51 or the 3rd side 53), wiring is complicated, therefore can will be more Individual pressure sensor 40 is arranged on the long side of display panel, i.e., first at 51 and the 3rd 53 at, to realize the base in narrow frame Simplify wiring on plinth.

Alternatively, as shown in figure 9, Fig. 9 is a kind of first pressure sensor provided in an embodiment of the present invention and second pressure The structural representation of sensor, first pressure sensor 41 include first resistor R1, second resistance R2,3rd resistor R3 and the 4th Resistance R4, the 4th resistance R4 in first resistor R1 first end and first pressure sensor 41 in first pressure sensor 41 First end is electrically connected to form the first power supply signal input D1, in first pressure sensor 41 first resistor R1 the second end and Second resistance R2 first end is electrically connected to form the first induced signal measurement connection end S1, the first pressure in first pressure sensor 41 In force snesor 41 in second resistance R2 the second end and first pressure sensor 41 3rd resistor R3 the electrical connection of the second end Second source signal input part D2 is formed, 3rd resistor R3 first end and first pressure sensing in first pressure sensor 41 The 4th resistance R4 the second end is electrically connected to form the second induced signal measurement connection end S2 in device 41.Second pressure sensor 42 with First pressure sensor 41 constructs with identical, and second pressure sensor 42 also includes first resistor R1, second resistance R2, the Three resistance R3 and the 4th resistance R4, first resistor R1 first end and second pressure sensor 42 in second pressure sensor 42 In the 4th resistance R4 first end be electrically connected to form the 3rd power supply signal input D3, first resistor in second pressure sensor 42 Second resistance R2 first end is electrically connected to form the measurement of the 3rd induced signal in R1 the second end and second pressure sensor 42 Connection end S3,3rd resistor R3 in second resistance R2 the second end and second pressure sensor 42 in second pressure sensor 42 The second end be electrically connected to form the 4th power supply signal input D4, in second pressure sensor 42 3rd resistor R3 first end with And the 4th resistance R4 the second end is electrically connected to form the 4th induced signal measurement connection end S4 in second pressure sensor 42.Its In, because first pressure sensor 41 and second pressure sensor 42 have identical structure, now with first pressure sensor 41 Exemplified by exemplary explanation, specifically, first resistor R1, second resistance R2,3rd resistor are carried out to the structure of pressure sensor R3 and the 4th resistance R4 can be serpentine-like, and first resistor R1, second resistance R2,3rd resistor R3 and the 4th resistance R4 are equal Mutually connection is formed from beginning to end for the part extended by X in a second direction and third direction Y, and second direction X intersects with third direction Y. With reference to figure 9, in first resistor R1 and 3rd resistor R3, the length of X extensions is less than along third direction Y and extended in a second direction Partial length；In second resistance R2 and the 4th resistance R4, the length of X extensions is more than along third direction Y in a second direction The length of extension.When pressure touch operation occurs for display panel, the pressure sensor that the present embodiment provides can sense Display panel X deformation and third direction Y deformation in a second direction, so as to largely destroy Wheatstone bridge Balance, be advantageous to increase the semaphore of the electric signal of pressure sensor output, be advantageous to analyze and calculate the pressure size of touch-control, Improve the accuracy of pressure touch.

It should be noted that be only a kind of topology example of pressure sensor shown in Fig. 9, in another embodiment, with Unlike pressure sensor shown in Fig. 9：In first resistor and 3rd resistor, the length of extension can be with a second direction More than the length along third direction extension；And in second resistance and the 4th resistance, the length of extension in a second direction Degree can be less than the length along third direction extension.It is different from pressure sensor shown in Fig. 9 in a further embodiment It is：In first resistor, second resistance, 3rd resistor and the 4th resistance, the length of extension can be equal in a second direction More than the length along third direction extension.In yet another embodiment, unlike pressure sensor shown in Fig. 9： In first resistor, second resistance, 3rd resistor and the 4th resistance, the length of extension can be respectively less than along in a second direction The length in three directions extension, the present invention are without limitation.

Alternatively, as shown in Figure 10, Figure 10 is another first pressure sensor provided in an embodiment of the present invention and second The structural representation of pressure sensor, as shown in Figure 10, first pressure sensor 41 includes first at 411, second 412, the Three at 413 and the 4th 414, first pressure sensor 41 first while 411 with the 3rd of first pressure sensor 41 while 413 phases It is right, first pressure sensor 41 second while 412 with the 4th of first pressure sensor 41 while 414 relative, first pressure sensings Device 41 include positioned at its first while 411 the first power supply signal input D1 and positioned at its 3rd while 413 second source signal Input D2, and positioned at its second while 412 the first induced signal measure connection end S1 and positioned at its 4th while 414 second Induced signal measures connection end S2.Second pressure sensor 42 constructs with first pressure sensor 41 with identical, the second pressure Force snesor 42 include first at 421, second the 422, the 3rd in 423 and the 4th while 424, the first of second pressure sensor 42 While 421 with the 3rd of second pressure sensor 42 while 423 relative, the second side 422 of second pressure sensor 42 and second pressures 4th side 424 of sensor 42 is relative, and the 3rd power supply signal that second pressure sensor 42 includes positioned at its first side 421 inputs Hold D3 and the 4th power supply signal input D4 positioned at its 3rd side 423, and the 3rd induced signal positioned at its second side 422 Measure connection end S3 and the 4th induced signal positioned at its 4th side 424 measures connection end S4.

Alternatively, as shown in Fig. 9, Figure 10 and Figure 11, Figure 11 is a kind of first pressure sensing provided in an embodiment of the present invention The electrical block diagram of device and second pressure sensor, in same pressure sensor group, first pressure sensor 41 First power supply signal input D1 electrically connects same first electricity with the 3rd power supply signal input D3 of second pressure sensor 42 Source signal line 71；The second source signal input part D2 of first pressure sensor 41 and the 4th power supply of second pressure sensor 42 Signal input part D4 electrically connects same second source signal wire 72.Wherein, (including first pressure passes for same pressure sensor group Sensor group and second pressure sensor group) in multiple first pressure sensors the first power supply signal input and multiple 3rd power supply signal input of two pressure sensors is connected to same first power signal line, in same pressure sensor group The second source signal input part of multiple first pressure sensors and the 4th power supply signal of multiple second pressure sensors Input is connected to same second source signal wire.And the first power supply of the first pressure sensor in different pressure sensor groups Signal input part can connect the power signal line of identical first, can also connect the first different power signal lines；Difference pressure The second source signal input part of first pressure sensor in force snesor group can connect identical second source signal wire, Different second source signal wires can also be connected；The 3rd power supply letter of second pressure sensor in different pressures sensor group Number input can connect the power signal line of identical first, can also connect the first different power signal lines；Different pressures 4th power supply signal input of the second pressure sensor in sensor group can connect identical second source signal wire, Different second source signal wires can be connected, the present invention is without limitation.As shown in figure 11, the embodiment of the present invention is provided Technical scheme, for the first pressure sensor 41 in same pressure sensor group and the setting of second pressure sensor 42 One second source signal wire, there is the advantages of wiring is simple, and technology difficulty is small, and cost is low.

As shown in Fig. 9, Figure 10 and Figure 12, Figure 12 is another first pressure sensor provided in an embodiment of the present invention and the The electrical block diagram of two pressure sensors, in same pressure sensor group (including first pressure sensor group and second Pressure sensor group) in, the of the first power supply signal input D1 of first pressure sensor 41 and second pressure sensor 42 Three power supply signal input D3 electrically connect same first power signal line 71；The second source signal of first pressure sensor 41 is defeated Enter to hold D2 to electrically connect the 3rd power signal line 73, the 4th power supply signal input D4 electrical connections the 4th of second pressure sensor 42 Power signal line 74, wherein, the 3rd power signal line 73 is identical with the current potential that the 4th power signal line 74 connects, to make first Pressure sensor 41 and second pressure sensor 42 are operated under identical bias voltage, and the first power signal line 71 can be with The connection fixed potential different from voltage on the 3rd power signal line 73 and the 4th power signal line 74.Wherein, same pressure First power supply signal input of multiple first pressure sensors in sensor group and the of multiple second pressure sensors Three power supply signal inputs are connected to same first power signal line, and multiple first pressures in same pressure sensor group pass The second source signal input part of sensor is connected to same 3rd power signal line, and multiple in same pressure sensor group 4th power supply signal input of two pressure sensors is connected to same 4th power signal line.And in different pressure sensor groups The first power supply signal input of first pressure sensor can connect the power signal line of identical first, can also connect not The first same power signal line；The second source signal input part of first pressure sensor in different pressures sensor group can be with The power signal line of identical the 3rd is connected, the 3rd different power signal lines can also be connected；In different pressures sensor group 3rd power supply signal input of second pressure sensor can connect the power signal line of identical first, can also connect difference The first power signal line；4th power supply signal input of the second pressure sensor in different pressures sensor group can connect The power signal line of identical the 4th is connect, the 4th different power signal lines can also be connected, the present invention is without limitation.This hair The technical scheme that bright embodiment is provided, compared in Figure 11, sensed for the first pressure in same pressure sensor group The technical scheme of device 41 and second pressure sensor 42 offers, one second source signal wire, as shown in figure 12, in the 4th electricity In the case that source signal line 74 is because of accident or other reasonses generation open circuit, the 3rd power signal line 73 of normally still can Operating voltage enough is provided for first pressure sensor, makes it continue to provide pressure sensing result, energy in the case of certain error Enough improve the reliability and service life of first pressure sensor.It should be noted that during actual use, can basis Specific product needs, using the circuit structure of first pressure sensor and second pressure sensor shown in Figure 11 or Figure 12, The present invention is without limitation.

Alternatively, as is illustrated by figs. 11 and 12, the first power signal line 71 can be grounded, to provide stable electricity Position.Specifically, the first induced signal measurement connection end S1 of first pressure sensor 41 and the second induced signal measurement connection end S2, and the 3rd induced signal measurement connection end S3 of second pressure sensor 42 and the 4th induced signal measurement connection end S4 can To be electrically connected to signal processor (not shown), exemplarily, in first pressure sensor group, signal processor passes through First induced signal measures connection end S1 and the second induced signal measurement connection end S2 voltage calculates first pressure sensor 41 output signal value, signal processor measures connection end S3 by the 3rd induced signal and the 4th induced signal measures connection end S4 voltage calculates the output signal value (reference signal) of second pressure sensor 42, in some cases, can be by first The output signal of pressure sensor 41 and the output signal of second pressure sensor 42 are directly subtracted each other, i.e., by second pressure sensor Reference signal of 42 output signal as the first pressure sensor 41 of same group therewith, reducing and (even eliminating) temperature pair The influence of first pressure sensor 41, on the basis of improving the result of detection degree of accuracy of first pressure pressure sensor 41, obtain the The pressure detection signal value of one pressure sensor 41.

Alternatively, display panel can include liquid crystal display panel, and Figure 13 is a kind of liquid crystal provided in an embodiment of the present invention The structural representation of display panel, as shown in figure 13, first substrate 10 are array base palte, and array base palte 10 can include driving liquid Pixel-driving circuit 11, pixel electrode 13 and public electrode 12 that brilliant molecule 81 deflects etc., second substrate 20 is color membrane substrates, color Ilm substrate can include color blocking 21 and black matrix 22, and liquid crystal layer 80 is clamped in array base palte and color membrane substrates, and liquid crystal layer 80 wraps Include multiple liquid crystal molecules 81.When public electrode 12 and pixel electrode 13 apply voltage, liquid crystal molecule is sent out in the presence of electric field Raw deflection, so as to control the luminosity when light that backlight (not shown) is sent is emitted through liquid crystal display panel. Color blocking 21 can include red color resistance, green color blocking and blue color blocking, and the light that backlight is sent is shown when passing through red color resistance Red, the light that backlight is sent show green when passing through green color blocking, the light that backlight is sent shows when passing through blue color blocking Show blueness, so that liquid crystal display panel realizes colored display.

Alternatively, display panel can include organic electroluminescence display panel, and Figure 14 is one kind provided in an embodiment of the present invention The structural representation of organic electroluminescence display panel, as shown in figure 14, first substrate 10 are array base palte, and array base palte can include Underlay substrate 14 and on underlay substrate 14 array arrangement organic light-emitting structure 15, second substrate 20 is protective cover plate, lining It is bonded and sealed between substrate 14 and protective cover plate by sealant 30, specifically, sealant 30 can include glass cement, such as By laser sintered mode sealant 30 can be made to be adhesively fixed with underlay substrate 11 and protective cover plate.Wherein, it is organic Ray structure 15 includes negative electrode, anode and the organic luminous layer between negative electrode and anode, and organic luminous layer can include Luminous material layer and auxiliary light emission layer, auxiliary light emission layer can include hole injection layer, hole transmission layer, electronic barrier layer, sky It is at least one in cave barrier layer, electron transfer layer and electron injecting layer.In the presence of extra electric field, electronics and hole difference Luminous material layer from negative electrode and anode injection organic luminous layer, so as to be migrated in luminous material layer, compound and decline Subtract and light.Organic light-emitting structure can include red organic light-emitting structure, green organic light-emitting structure and blue organic light emission Structure, the luminous material layer in red organic light-emitting structure can send red light, luminous in green organic light-emitting structure Material layer can send green light, and the luminous material layer in blue organic light-emitting structure can send blue ray, so that Organic electroluminescence display panel realizes colored display.

The embodiment of the present invention additionally provides a kind of display device, and Figure 15 is a kind of display device provided in an embodiment of the present invention Structural representation, as shown in figure 15, display device 100 provided in an embodiment of the present invention include any embodiment of the present invention described in Display panel 200, its can be Figure 15 shown in mobile phone, or computer, television set, Intelligent worn device etc., this Inventive embodiments are not particularly limited to this.

The embodiment of the present invention additionally provides a kind of pressure detection method based on display panel in the various embodiments described above, display Panel includes viewing area and the non-display area around viewing area, and with reference to figure 1- Fig. 5, display panel includes：First substrate 10；Second Substrate 20, it is oppositely arranged with first substrate 10；Sealant 30, between first substrate 10 and second substrate 20, and sealant 30 are located at non-display area 102；Pressure sensor 40, pressure sensor 40 are located at first substrate 10 towards the one of second substrate 20 Side；Pressure sensor 40 includes construction identical first pressure sensor 41 and second pressure sensor 42, first pressure sensing Device 41 is located at sealant 30 and covered close to the side of viewing area 101, second pressure sensor 42 by sealant 30；Wherein, at least One first pressure sensor 41 and second pressure sensor 42 form first pressure sensor group 401, same the In one pressure sensor group 401, the output signal of second pressure sensor 42 exports as any first pressure sensor 41 to be believed Number reference signal；And/or at least one first pressure sensor 41 forms second pressure with multiple second pressure sensors 42 Sensor group 402, in same second pressure sensor group 402, whole output signals of second pressure sensor 42 are averaged It is worth the reference signal as any output signal of first pressure sensor 41；

Pressure detection method includes：In first pressure sensor group, using the output signal of second pressure sensor as First reference signal, output signal and the first reference signal to first pressure sensor are handled to obtain first pressure biography The pressure detection signal value of sensor；And/or in second pressure sensor group, by whole second pressure sensor output signals Average value as the second reference signal, output signal and the second reference signal to first pressure sensor handle To the pressure detection signal value of first pressure sensor.

It is assumed that in first pressure sensor group or second pressure sensor group, at first pressure sensor position Temperature and first pressure sensor output signal in because error amount caused by temperature is respectively the first temperature and first Error amount, temperature at second pressure sensor position and in the output signal of second pressure sensor because of temperature institute band The error amount come is respectively second temperature and the second error amount, and due to first pressure sensor and the structure of second pressure sensor Make identical, then there is the letter of identical first between the first error amount and the first temperature and between the second error amount and second temperature Number relation.

Exemplarily, display panel includes first pressure sensor group, and the second pressure in first pressure sensor group passes For sensor due to being covered by sealant, its output signal is only affected by temperature, the output signal of second pressure sensor both generation Influence of the temperature for the output signal of second pressure sensor at table second pressure sensor position, wherein, when upper State the first temperature it is identical or very close with second temperature when, can be by by the output signal of first pressure sensor and the The output signal of two pressure sensors is directly subtracted each other, i.e., using the output signal of second pressure sensor as therewith with the first of group First reference signal of pressure sensor, (even eliminate) influence of temperature to first pressure sensor is being reduced, improving the On the basis of the one force pressure sensor result of detection degree of accuracy, the pressure detection signal value of first pressure sensor is obtained, and When above-mentioned first temperature and second temperature difference are larger, it is assumed that the functional relation between the first temperature and second temperature is second Functional relation, then after by above-mentioned second function relation and the conversion of first function relation, the first error amount and the can be obtained The 3rd functional relation between two error amounts, and the 3rd functional relation is based on, using the output signal of second pressure sensor as One reference signal, then can equally influence of the temperature to first pressure sensor be being reduced and (even eliminated), improve the first pressure Force and obtain the pressure detection signal value of first pressure sensor on the basis of the force snesor result of detection degree of accuracy.

Exemplarily, second pressure sensor group includes two second pressure sensors, two second pressure sensors Second temperature is respectively T1 and T2, and the second error amount of two second pressure sensors accordingly has for F1 and F2, T1 and F1 First function relation, T2 and F2 have first function relation.Display panel includes second pressure sensor group, second pressure sensing For second pressure sensor in device group due to being covered by sealant, its output signal is only affected by temperature, and second pressure passes The output signal of sensor had both represented output letter of the temperature for second pressure sensor at second pressure sensor position Number influence, wherein, can be by the way that first pressure be sensed when above-mentioned first temperature is identical or very close with T1, T2 The output signal of device and F1, F2 average value, i.e. (F1+F2)/2, directly subtract each other, i.e., by whole in second pressure sensor group the Second reference signal of the average value of two pressure sensor output signals as the first pressure sensor of same group therewith, is being reduced (even eliminating) influence of temperature to first pressure sensor, improves the first pressure pressure sensor result of detection degree of accuracy On the basis of, the pressure detection signal value of first pressure sensor is obtained, and when above-mentioned first temperature and T1, T2 difference are larger, It is assumed that the functional relation between the first temperature and T1, T2 is the 4th functional relation, have the 5th between T1, T2 and (F1+F2)/2 Functional relation, then after being changed by above-mentioned 4th functional relation, the 5th functional relation and first function relation, the can be obtained The 6th functional relation between one error amount and (F1+F2)/2, and the 6th functional relation is based on, with second pressure sensor group The average value of whole second pressure sensor output signals is the second reference signal, then can equally reduce and (even eliminate) Influence of the temperature to first pressure sensor, improve and obtain the on the basis of the first pressure pressure sensor result of detection degree of accuracy The pressure detection signal value of one pressure sensor.

Alternatively, with reference to figure 1, Fig. 2 and Fig. 5, in same first pressure sensor group 401, first pressure sensor 41 or second pressure sensor 42 in the first direction on size be h, first pressure sensor 41 has the to first substrate 10 One orthographic projection, second pressure sensor 42 have the second orthographic projection to first substrate 10, any point and second in the first orthographic projection Distance farthest between any point is H in orthographic projection, and 2h≤H≤6h, first direction are that the second just throwing is pointed in the first orthographic projection The direction (i.e. the geometric center of gravity of the first orthographic projection points to the direction of the second orthographic projection geometric center of gravity) of shadow, first pressure sensor 41 It can be located at same layer or positioned at different layers, the invention is not limited in this regard with second pressure sensor 42.With pressure in Fig. 1 Sensor 40 (including construction identical first pressure sensor 41 and second pressure sensor 42) sets and is shaped as just with layer The center of the second pressure sensor 42 of square is pointed at square carry out example, the center of square first pressure sensor 41 Direction be first direction, square center refers to two cornerwise intersection points of square.When the first orthographic projection is taken up an official post When some distance H farthest between any point in the second orthographic projection meets 2h≤H≤6h, same first pressure sensor group Second pressure sensor 42 in 401 is arranged near first pressure sensor 41, and first pressure sensor 41 and second is pressed Force snesor 42 has similar temperature, therefore first pressure sensor 41 and second pressure sensor 42 are affected by temperature Degree is similar, and the second pressure sensor 42 in first pressure sensor group 401 by sealant 30 due to being covered, its output signal It is only affected by temperature, the output signal representative of second pressure sensor 42 temperature residing for second pressure sensor 42 for The influence of the output signal of second pressure sensor 42, because first pressure sensor 41 and second pressure sensor 42 construct phase Together, first pressure sensor 41 and 42 degree affected by temperature of second pressure sensor are same or like, can be by first The output signal of pressure sensor 41 and the output signal of second pressure sensor 42, i.e., directly subtract each other with the first reference signal, Influence of the temperature to first pressure sensor 41 is being reduced and (even eliminated), first pressure pressure sensor 41 is being improved and detects knot On the basis of the fruit degree of accuracy, the pressure detection signal value of first pressure sensor 41 is obtained.

Alternatively, with reference to figure 3, Fig. 4 and Fig. 5, display panel includes second pressure sensor group 402, second pressure sensing For second pressure sensor 42 in device group 402 due to being covered by sealant 30, its output signal is only affected by temperature, and second The output signal of pressure sensor 42 had both represented temperature at the position of second pressure sensor 42 and sensed for second pressure The influence of the output signal of device 42, although the temperature of each opening position is different in display panel, temperature difference is little, can be with By the average value of the output signal of first pressure sensor 41 and the output signal of multiple second pressure sensors 42, i.e., with second Reference signal directly subtracts each other to obtain the pressure detection signal value of first pressure sensor 41, can also reduce temperature to a certain extent Degree improves the result of detection degree of accuracy of first pressure pressure sensor 41 to harmful effect caused by first pressure sensor 41.

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, be combined with each other and substitute without departing from protection scope of the present invention.Therefore, although by above example to this Invention is described in further detail, but the present invention is not limited only to above example, is not departing from present inventive concept In the case of, other more equivalent embodiments can also be included, and the scope of the present invention is determined by scope of the appended claims.

Claims

1. a kind of display panel, including viewing area and the non-display area around the viewing area, it is characterised in that the display surface Plate includes：

First substrate；

Second substrate, it is oppositely arranged with the first substrate；

Sealant, between the first substrate and the second substrate, and the sealant is located at the non-display area；

The pressure sensor includes construction identical first pressure sensor and second pressure sensor, and the first pressure passes Sensor is located at the sealant and covered close to the side of the viewing area, the second pressure sensor by the sealant；Its In,

At least one first pressure sensor and a second pressure sensor form first pressure sensor group, In the same first pressure sensor group, the output signal of the second pressure sensor is as any first pressure The reference signal of sensor output signal；And/or

At least one first pressure sensor forms second pressure sensor group with multiple second pressure sensors, In the same second pressure sensor group, all the average value of the second pressure sensor output signal is as any institute State the reference signal of first pressure sensor output signal.

2. display panel according to claim 1, it is characterised in that in the same first pressure sensor group, The first pressure sensor or the second pressure sensor in the first direction on size be h, the first pressure sensing Device has the first orthographic projection to the first substrate, and the second pressure sensor has the second positive throwing to the first substrate Shadow, distance farthest between any point in any point and second orthographic projection is H in first orthographic projection, and 2h≤H≤ 6h, the first direction are the direction that second orthographic projection is pointed in first orthographic projection.

3. display panel according to claim 1 or 2, it is characterised in that the first pressure sensor and described second Pressure sensor is set with layer.

4. display panel according to claim 1 or 2, it is characterised in that each first pressure sensor group is only wrapped Include a first pressure sensor.

5. display panel according to claim 3, it is characterised in that each first pressure sensor group includes multiple The first pressure sensor, and in the same first pressure sensor group, each first pressure sensor with The distance between the second pressure sensor is all equal.

6. display panel according to claim 2, it is characterised in that 50 μm≤h≤120 μm.

7. display panel according to claim 1, it is characterised in that the display panel turns including the first turning, second Angle, the 3rd turning and the 4th turning, are the first side of the display panel between first turning and second turning, institute State between the second turning and the 3rd turning be the display panel the second side, the 3rd turning and the 4th turning Between be the display panel the 3rd side, be the 4th of the display panel between the 4th turning and first turning Side；

The second pressure sensor group includes multiple first pressure sensors and four second pressure sensors, more The individual first pressure sensor respectively positioned at the display panel described first while, it is described second while, the 3rd side and On any one or more persons in 4th side, four second pressure sensors are respectively positioned at first turning, institute State the second turning, the 3rd turning and the 4th corner and different.

8. display panel according to claim 1, it is characterised in that the display panel include first while, second while, the Three while and when the 4th, described first while length be more than described second while and the 4th side length, the length on the 3rd side Degree be more than described second while and it is described 4th while length, the first pressure sensor group is located at first side, described the Two while, it is described 3rd while and the 4th side on any one or more persons.

9. display panel according to claim 1, it is characterised in that the first pressure sensor include first resistor, Second resistance, 3rd resistor and the 4th resistance, the first end and described first of first resistor in the first pressure sensor The first end of the 4th resistance is electrically connected to form the first power supply signal input in pressure sensor, in the first pressure sensor The first end of second resistance is electrically connected to form the first sensing letter in second end of first resistor and the first pressure sensor Number measurement connection end, in the first pressure sensor the 3rd in the second end of second resistance and the first pressure sensor Second end of resistance is electrically connected to form second source signal input part, the first end of 3rd resistor in the first pressure sensor And the second end of the 4th resistance is electrically connected to form the second induced signal measurement connection end in the first pressure sensor；

The second pressure sensor includes first resistor, second resistance, 3rd resistor and the 4th resistance, and the second pressure passes The first end of the 4th resistance is electrically connected to form the 3rd in the first end of first resistor and the second pressure sensor in sensor Power supply signal input, in the second pressure sensor in the second end of first resistor and the second pressure sensor The first end of two resistance is electrically connected to form the 3rd induced signal measurement connection end, second resistance in the second pressure sensor The second end of 3rd resistor is electrically connected to form the 4th power supply signal input, institute in second end and the second pressure sensor State the second end electricity of the 4th resistance in the first end of 3rd resistor in second pressure sensor and the second pressure sensor Connection forms the 4th induced signal measurement connection end.

10. display panel according to claim 1, it is characterised in that

The first pressure sensor include first while, second while, the 3rd while and when the 4th, the of the first pressure sensor While, second side and the first pressure of the first pressure sensor relative with the 3rd side of the first pressure sensor 4th side of sensor is relative, and the first pressure sensor includes the first power supply signal input and position positioned at its first side Second source signal input part in its 3rd side, and positioned at the first induced signal measurement connection end on its second side and be located at The second induced signal measurement connection end on its 4th side；

The second pressure sensor include first while, second while, the 3rd while and when the 4th, the of the second pressure sensor While, second side and the second pressure of the second pressure sensor relative with the 3rd side of the second pressure sensor 4th side of sensor is relative, and the second pressure sensor includes the 3rd power supply signal input and position positioned at its first side The 4th power supply signal input in its 3rd side, and positioned at the 3rd induced signal measurement connection end on its second side and be located at The 4th induced signal measurement connection end on its 4th side.

11. the display panel according to claim 9 or 10, it is characterised in that in same pressure sensor group,

First power supply signal input of the first pressure sensor and the described 3rd of the second pressure sensor the Power supply signal input electrically connects same first power signal line；

The second source signal input part of the first pressure sensor and the described 4th of the second pressure sensor the Power supply signal input electrically connects same second source signal wire；Or

The second source signal input part of the first pressure sensor electrically connects the 3rd power signal line, second pressure The 4th power supply signal input of force snesor electrically connects the 4th power signal line, the 3rd power signal line with it is described The current potential of 4th power signal line connection is identical.

12. display panel according to claim 11, it is characterised in that the first power signal line ground connection.

13. display panel according to claim 1, it is characterised in that the display panel includes liquid crystal display panel, institute It is color membrane substrates to state second substrate；Or

The display panel includes organic electroluminescence display panel, and the second substrate is protective cover plate.

14. a kind of display device, it is characterised in that including the display panel described in claim any one of 1-13.

15. a kind of pressure detection method of display panel, the display panel includes viewing area and around the non-of the viewing area Viewing area, it is characterised in that the display panel includes：

First substrate；

Second substrate, it is oppositely arranged with the first substrate；

At least one first pressure sensor forms second pressure sensor group with multiple second pressure sensors, In the same second pressure sensor group, all the average value of the second pressure sensor output signal is as any institute State the reference signal of first pressure sensor output signal；

The pressure detection method includes：

In the first pressure sensor group, using the output signal of the second pressure sensor as the first reference signal, Output signal and first reference signal to the first pressure sensor are handled to obtain the first pressure biography The pressure detection signal value of sensor；And/or

In the second pressure sensor group, using the average value of all second pressure sensor output signals as second Reference signal, output signal and second reference signal to the first pressure sensor are handled to obtain described The pressure detection signal value of one pressure sensor.

16. pressure detection method according to claim 15, it is characterised in that in the same first pressure sensor In group, the first pressure sensor or the second pressure sensor in the first direction on size be h, the first pressure Sensor has the first orthographic projection to the first substrate, and the second pressure sensor has second just to the first substrate Projection, distance farthest between any point in any point and second orthographic projection is H in first orthographic projection, and 2h≤H ≤ 6h, the first direction are the direction that second orthographic projection is pointed in first orthographic projection；

In the first pressure sensor group, by the output signal of the first pressure sensor and first reference signal Pressure detection signal value of the difference as the first pressure sensor.

17. pressure detection method according to claim 15, it is characterised in that in the second pressure sensor group, Using the difference of the output signal of the first pressure sensor and second reference signal as the first pressure sensor Pressure detection signal value.