CN114706496B - Touch display module, electronic equipment and monitoring method - Google Patents
Touch display module, electronic equipment and monitoring method Download PDFInfo
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- CN114706496B CN114706496B CN202210409991.3A CN202210409991A CN114706496B CN 114706496 B CN114706496 B CN 114706496B CN 202210409991 A CN202210409991 A CN 202210409991A CN 114706496 B CN114706496 B CN 114706496B
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- display module
- touch
- touch display
- strain gauge
- controller
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
Abstract
The application relates to a touch display module, electronic equipment and a monitoring method. A touch display module, comprising: the touch module and the substrate are stacked; the touch module comprises a touch part and a peripheral part surrounding the touch part; the protective frame is arranged on one side of the peripheral part, which is away from the substrate; the bonding layer is arranged between the protection frame and the peripheral part; at least one strain gage; and the controller is electrically connected with all the strain gauges respectively so as to obtain electric signals correspondingly generated when the strain gauges deform. The controller can be utilized to acquire the electric signals correspondingly generated when the strain gauge deforms, so that the controller can sense the deformation of the peripheral part by means of the strain gauge, and then the problems of internal degumming and the like of the touch control module due to external force formed in a clamping or hanging mode and the like in the circulation process can be timely known, so that the touch control display module is correspondingly detected and controlled, and defective products of the touch control display module are prevented from flowing into the whole assembly line.
Description
Technical Field
The present disclosure relates to the field of touch display modules, and particularly to a touch display module, an electronic device, and a monitoring method.
Background
The electronic device includes a touch display module, and in the related art, after the touch display module is assembled, the touch display module is usually circulated to convey the touch display module to a complete machine assembly line of the electronic device, however, after the complete machine assembly is completed, the touch display module is detected to have the internal degumming problem, so that the complete machine needs to be recombined, and a great amount of manpower and material resources are wasted.
Disclosure of Invention
Based on the above, it is necessary to provide a touch display module, an electronic device and a monitoring method, which can avoid the problem of local degumming and the like from flowing into the whole assembly line, thereby being beneficial to improving the yield of the whole assembly line.
According to an aspect of the present application, there is provided a touch display module, including:
the touch module and the substrate are stacked; the touch module comprises a touch part and a peripheral part surrounding the touch part;
the protective frame is arranged on one side of the peripheral part, which is away from the substrate;
an adhesive layer disposed between the protective frame and the peripheral portion;
at least one strain gauge, perpendicular to the stacking direction of the touch module and arranged in the peripheral part, wherein the orthographic projection of the bonding layer on the substrate and the orthographic projection of the strain gauge on the substrate are overlapped with each other; and
and the controller is respectively and electrically connected with all the strain gauges so as to acquire electric signals correspondingly generated when the strain gauges deform.
In one embodiment, the controller includes a wheatstone bridge, the wheatstone bridge includes a first bridge circuit of one arm and a second bridge circuit of three arms, the first bridge circuit of one arm is electrically connected with the strain gauge, and the second bridge circuit of three arms is electrically connected with three bridge arm resistors respectively, so as to obtain an electrical signal generated by the strain gauge when the strain gauge is deformed.
In one embodiment, a plurality of strain gauges are disposed in the peripheral portion around the outer periphery of the touch portion and spaced apart from each other.
In one embodiment, the controller includes a plurality of wheatstone bridges corresponding to the strain gages one by one, so as to obtain electrical signals generated by the corresponding strain gages when the strain gages are deformed by using the wheatstone bridges.
In one embodiment, the controller further comprises a multiplexer disposed in the first bridge circuit, the multiplexer being configured to be selectively electrically connected to one of the strain gages to turn on the first bridge circuit.
In one embodiment, the strain gauge further comprises wires corresponding to the strain gauges one by one, and the strain gauges are electrically connected with the first bridge circuit through the corresponding wires so as to conduct the first bridge circuit;
the orthographic projection of the wire on the touch module falls in the range of the peripheral part.
In one embodiment, the method further comprises providing an ink layer disposed between the peripheral portion and the substrate, the front projection of the ink layer onto the substrate and the front projection of the strain gauge onto the substrate overlapping each other.
In one embodiment, the strain gauge comprises at least one sensitive gate and an insulating protection layer covering all the sensitive gates;
the two ends of each sensitive grid are respectively and electrically connected with the controller.
In one embodiment, the strain gauge comprises two sensitive grids connected in parallel to the controller, wherein one sensitive grid is arranged along a first direction, and the other sensitive grid is arranged along a second direction;
the first direction and the second direction intersect each other and are both parallel to the insulating protection layer.
In one embodiment, the strain gauge comprises three sensitive grids connected in parallel with the controller, wherein the first sensitive grid is arranged along a first direction, the second sensitive grid is arranged along a second direction, and the third sensitive grid is arranged along a third direction;
the first direction, the second direction and the third direction are intersected in pairs and are parallel to the insulating protection layer.
According to another aspect of the present application, an electronic device is provided, including the touch display module set described above.
According to another aspect of the present application, a monitoring method is provided for monitoring the touch display module set described above, where the monitoring method includes:
acquiring a first electric signal generated by the strain gauge before the touch display module flows;
acquiring a second electric signal generated by the strain gauge in the touch display module circulation;
and if the absolute difference value of the second electric signal and the first electric signal is larger than a preset value, stopping the circulation of the touch display module.
According to the touch display module, the electronic equipment and the monitoring method, when the problem that the protective frame is degummed and the like occurs due to external force formed in the clamping or hanging mode and the like in the circulation process of the touch display module, the adhesive layer between the protective frame and the peripheral portion is pulled towards one side close to the peripheral portion under the action of the external force, the peripheral portion of the touch display module is further bent upwards, the strain gauge in the peripheral portion deforms, the controller can be used for acquiring the electric signal generated by the strain gauge correspondingly in the deformation process, the controller can sense the deformation of the peripheral portion by means of the strain gauge, and then the problem that the touch display module is degummed and the like in time due to the external force formed in the clamping or hanging mode and the like in the circulation process can be timely obtained, so that the touch display module can be correspondingly detected and controlled, and defective products of the touch display module are prevented from flowing into the whole machine assembly line.
Drawings
Fig. 1 is a schematic structural diagram of a touch display module according to an embodiment of the disclosure;
FIG. 2 shows a circuit block diagram of a Wheatstone bridge and processing module in an embodiment of the present application;
FIG. 3 shows a schematic distribution of a plurality of strain gages in one embodiment of the present application;
FIG. 4 shows a block circuit diagram of a Wheatstone bridge, a multiplexer, and a processing module in an embodiment of the present application;
FIG. 5 shows a partial schematic view of FIG. 4;
FIG. 6 shows a schematic diagram of the structure of a strain gage, a wire, and a controller in an embodiment of the present application;
fig. 7 shows a schematic structural view of a strain gauge in a first embodiment of the present application;
fig. 8 shows a schematic structural view of a strain gauge in a second embodiment of the present application;
fig. 9 is a schematic structural view showing a strain gauge in a third embodiment of the present application;
fig. 10 is a flowchart of a monitoring method for monitoring a touch display module according to an embodiment of the disclosure.
In the figure:
10. a touch display module; 153. An insulating protective layer;
110. a touch control module; 160. A controller;
111. a touch control part; 161. A wheatstone bridge;
112. a peripheral portion; 1611. A first bridge circuit;
120. a substrate; 1612. A second bridge circuit;
130. a protective frame; 1613. Bridge arm resistance;
140. an adhesive layer; 162. A processing module;
150. a strain gage; 163. A multiplexer;
151. a wire; 170. A display module;
152. a sensitive grid; 180. An ink layer.
Detailed Description
In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The inventor of the application finds through research that, in the related art, a clamping or hanging mode is generally adopted to convey the assembled touch display module to a complete machine assembly line of electronic equipment, and because the touch display module is large in size and large in weight, the touch display module is easy to cause problems of internal degumming and the like due to external force formed by the clamping or hanging mode and the like in the circulation process, so that the degummed state inside the touch display module cannot be found in time from the appearance, and defective products of the touch display module are caused to flow into the complete machine assembly line.
In order to solve the technical problem of how to prevent defective products of the touch display module from flowing into the whole assembly line, the inventor of the application has conducted intensive studies and designed a touch display module, which comprises a touch module, a substrate, a protection frame, an adhesive layer, at least one strain gauge and a controller, wherein the touch module comprises a touch portion and a peripheral portion surrounding the touch portion. The protective frame is arranged on one side of the peripheral part, which is away from the substrate, the bonding layer is arranged between the protective frame and the peripheral part, at least one strain gauge is arranged in the peripheral part, the orthographic projection of the bonding layer on the substrate and the orthographic projection of the strain gauge on the substrate are overlapped with each other, so when the problem of degumming and the like at the protective frame occurs due to external force formed by clamping or hanging and the like in the circulation process of the touch display module, the bonding layer between the protective frame and the peripheral part can be pulled towards one side, which is close to the peripheral part, under the action of the external force, so as to lead the peripheral part of the touch display module to be bent upwards, the strain gauge in the peripheral part is deformed, and the controller can be used for acquiring the electric signal which is correspondingly generated when the strain gauge is deformed, so as to know the deformation condition of the strain gauge, and further the problem of internal degumming and the like can be timely obtained due to the external force formed by clamping or hanging and the like in the circulation process of the touch display module, so that defective products of the touch display module are prevented from flowing into an assembly line.
Fig. 1 is a schematic structural diagram of a touch display module 10 according to an embodiment of the disclosure.
In some embodiments, referring to fig. 1, a touch display module 10 provided in an embodiment of the present application includes a touch module 110 and a substrate 120 that are stacked, a protection frame 130, an adhesive layer 140, at least one strain gauge 150, and a controller 160, wherein the touch module 110 includes a touch portion 111 and a peripheral portion 112 surrounding the touch portion 111. The protective frame 130 is disposed on a side of the peripheral portion 112 away from the substrate 120, the bonding layer 140 is disposed between the protective frame 130 and the peripheral portion 112, the at least one strain gauge 150 is perpendicular to the stacking direction of the touch module 110 and disposed in the peripheral portion 112, and the orthographic projection of the bonding layer 140 on the substrate 120 and the orthographic projection of the strain gauge 150 on the substrate 120 overlap each other. The controller 160 is electrically connected to all the strain gages 150 respectively to obtain electrical signals generated by the strain gages 150 during deformation. In this way, when the problem of degumming and the like at the position of the protective frame 130 occurs due to external force formed by clamping or hanging and the like in the circulation process of the touch display module 10, the adhesive layer 140 between the protective frame 130 and the peripheral portion 112 is pulled towards one side close to the peripheral portion 112 under the action of the external force, so that the peripheral portion 112 of the touch display module 110 is bent upwards, the strain gauge 150 in the peripheral portion 112 is deformed, the controller 160 can be used for acquiring an electric signal generated by the strain gauge 150 correspondingly in the deformation process, so that the controller 160 can sense the deformation of the peripheral portion 112 by means of the strain gauge 150, and further the problem of internal degumming and the like of the touch display module 110 due to the external force formed by clamping or hanging and the like in the circulation process can be timely obtained, so that the touch display module 10 is correspondingly detected and controlled, and defective products of the touch display module are prevented from flowing into the whole machine assembly line.
The "orthographic projection of the adhesive layer 140 on the substrate 120 and orthographic projection of the strain gauge 150 on the substrate 120 overlap" may be that the orthographic projections of the two overlap each other completely or that the orthographic projections of the two overlap each other partially, and is not particularly limited herein.
In some embodiments, the touch display module 10 further includes a display module 170 disposed in the protection frame 130, and the display module 170 is disposed on a side of the touch portion 111 away from the substrate 120.
It is understood that the display area of the display module 170 is disposed corresponding to the touch portion 111, and thus the strain gauge 150 disposed in the peripheral portion 112 does not affect the display effect of the display area.
In some embodiments, referring to fig. 2, the controller 160 includes a wheatstone bridge 161, the wheatstone bridge 161 includes a first bridge circuit 1611 and a second bridge circuit 1612 with three arms, the strain gauge 150 is electrically connected to the first bridge circuit 1611, and the three bridge resistors 1613 are electrically connected to the second bridge circuit 1612 with three arms, respectively, to obtain the electrical signals generated by the strain gauge 150 during deformation.
In particular, in the embodiment shown in fig. 2, in the same wheatstone bridge 161, the resistances of the three bridge arm resistors 1613 are respectively R 1 、R 2 And R is 3 The resistance value of the strain gage 150 is R X When strain gauge 150 is not deformed, wheatstone bridge 161 reaches an electrical equilibrium where vg=0, (R 1 *R X )＝(R 2 *R 3 ). When the strain gauge 150 deforms under the action of external force such as clamping or hanging, the balance of the Wheatstone bridge 161 is broken and a corresponding voltage signal such as V is output G ，V G ＝(R X /(R 3 +R X )-R 2 /(R 2 +R 1 )*V S 。
Optionally, the controller 160 includes a processing module 162 electrically connected to the wheatstone bridge 161, where the processing module 162 is configured to receive a voltage signal output by the wheatstone bridge 161, and further process the voltage signal, such as amplifying, analog-to-digital converting, etc., to accurately obtain an electrical signal generated when the strain gauge 150 is deformed.
The "electric signal generated by the strain gauge 150 during deformation" includes, but is not limited to, a voltage signal, a resistance value, a current value, and the like output by the wheatstone bridge 161.
In some embodiments, referring to fig. 3, a plurality of strain gauges 150 are disposed in the peripheral portion 112 around the periphery of the touch portion 111 and spaced apart from each other.
The plurality of strain gauges 150 surround the periphery of the touch portion 111 and are spaced apart from each other, and the plurality of strain gauges 150 can be used to monitor different areas of the periphery portion 112 along the circumferential direction thereof, so as to more comprehensively obtain specific conditions of the different areas of the periphery portion 112 along the circumferential direction thereof, better obtain internal degumming and other problems of the touch module 110 due to external force formed by clamping or hanging and other modes in the circulation process, better avoid defective products of the touch display module from flowing into the whole assembly line, and improve the control reliability of the touch display module 10.
Optionally, the touch module 110 is a multi-layer structure, and the strain gauge 150 is disposed between two adjacent layers of the multi-layer structure, so that the strain gauge 150 can respond well to the deformation of the touch module 110, and the controller 160 can obtain the electrical signal generated by the strain gauge 150 during the deformation.
In some embodiments, the controller 160 includes a plurality of wheatstone bridges 161 in one-to-one correspondence with the strain gages 150 to acquire the corresponding electrical signals generated by the acquired strain gages 150 upon deformation using the wheatstone bridges 161. In this way, the wheatstone bridge 161 can be utilized to obtain the electrical signals generated when the strain gauge 150 deforms in a one-to-one correspondence manner, so as to obtain the deformation conditions of the peripheral portion 112 in different areas at the same time, so that the problem of internal degumming and the like caused by external force formed by clamping or hanging in the circulation process of the touch module 110 can be more timely obtained.
In some embodiments, referring to fig. 4 and 5, the controller 160 further includes a multiplexer 163 disposed in the first bridge circuit 1611, and the multiplexer 163 is configured to be selectively electrically connected to one of the strain gauges 150 to turn on the first bridge circuit 1611.
In this way, any one of the strain gauges 150 may be electrically connected to the first bridge circuit 1611 as required, so as to obtain the electrical signal generated by the strain gauge 150 during deformation by using the wheatstone bridge 161.
In some embodiments, the multiplexer 163 is configured to be electrically connected to the plurality of strain gages 150 sequentially at preset time intervals, so as to sequentially obtain the electrical signals generated by the plurality of acquisition strain gages 150 during deformation at preset time intervals. In this way, the multiplexer 163 can be utilized to monitor the plurality of strain gauges 150 better, so as to obtain the internal degumming problem of the touch module 110 due to the external force formed by clamping or hanging in the circulation process in a more timely manner.
Alternatively, the preset time interval may be 0.1-1s, which may be set as desired for monitoring the strain gauge 150.
In some embodiments, referring to fig. 6, the touch display module 10 further includes wires 151 corresponding to the strain gauges 150 one by one, the strain gauges 150 are electrically connected to the first bridge circuit 1611 through the corresponding wires 151 to turn on the first bridge circuit 1611, and the orthographic projection of the wires 151 on the touch module 110 falls within the range of the peripheral portion 112. In this way, the strain gauge 150 and the three bridge arm resistors 1613 can be connected to form the wheatstone bridge 161, and the wire 151 connected with the strain gauge 150 can be ensured not to affect the use of the touch portion 111 and the display module 170.
In some embodiments, the plurality of strain gauges 150 are uniformly distributed circumferentially around the periphery of the touch portion 111, so that the controller 160 can better sense the deformation of the peripheral portion 112 by means of the plurality of strain gauges 150. The plurality of strain gauges 150 may be distributed in a cross shape, may be distributed in a rice shape, or may be uniformly distributed around the outer circumference of the touch portion 111.
In particular, in the embodiment shown in fig. 3, four strain gauges 150 are disposed in the peripheral portion 112 around the outer periphery of the touch portion 111, wherein two strain gauges 150 are located on opposite sides of the touch portion 111 in the first radial direction S1, and the other two strain gauges 150 are located on opposite sides of the touch portion 111 in the second radial direction S2. Wherein the first radial direction S1 and the second radial direction S2 intersect each other. In this way, the four strain gauges 150 can be distributed around the touch portion 111 more uniformly, and the controller 160 can sense the deformation of the peripheral portion better by means of the four strain gauges 150.
In some embodiments, referring to fig. 1, the touch display module 10 further includes an ink layer 180 disposed between the peripheral portion 112 and the substrate 120, and an orthographic projection of the ink layer 180 on the substrate 120 and an orthographic projection of the strain gauge 150 on the substrate 120 overlap each other.
Under the action of external force formed by clamping or hanging, if the ink layer 180 between the peripheral portion 112 and the substrate 120 is pulled, the strain gauge 150 is deformed, so that the balance of the wheatstone bridge 161 is broken, and a corresponding electric signal is output, at this time, the controller 160 can also obtain the electric signal generated by the strain gauge during deformation, so as to sense the deformation of the peripheral portion 112 by means of the strain gauge 150, so as to timely control the touch display module 10.
In some embodiments, referring to fig. 7, the strain gauge 150 includes at least one sensing gate 152 and an insulating protection layer 153 covering all sensing gates 152. Both ends of each sensing grid 152 are electrically connected to the controller 160.
In this way, when the sensing grid 152 of the strain gauge 150 deforms, the controller 160 can sense the deformation of the peripheral portion 112 by means of the sensing grid 152 of the strain gauge 150, and the sensing grid 152 is insulated from the touch module by means of the insulating protection layer 153, so as to improve the safety and monitoring reliability of the touch display module 10.
In some embodiments, referring to fig. 8, the strain gauge 150 includes two sensing grids 152 connected in parallel to the controller 160, wherein one sensing grid 152 is along the first direction F 1 Arranged with another sensitive gate 152 along the second direction F 2 Layout in the first direction F 1 And a second direction F 2 Intersecting each other and all parallel to the insulating protection layer 153.
The two sensitive grids 152 are arranged, and the extending directions of the two sensitive grids 152 are intersected with each other, so that under the action of external force formed in a clamping or hanging mode, the sensitive grids 152 in any direction deform, the controller 160 can sense the deformation of the peripheral part 112 by means of the sensitive grids 152 of the strain gauge 150, the deformation of the peripheral part 112 can be sensed more comprehensively, and the monitoring reliability of the touch display module 10 is improved.
In some embodiments, referring to FIG. 9, the strain gauge 150 includes three sensing grids 152 connected in parallel to the controller 160, the first sensing grid 152 along a first direction F 1 The second sensitive gate 152 is arranged along the second direction F 2 The third sensitive gate 152 is arranged along the third direction F 3 Layout in the first direction F 1 In the second direction F 2 With a third direction F 3 Two by two and are parallel to the insulating protection layer 153.
The three sensing grids 152 are arranged, and the extending directions of the three sensing grids 152 are intersected in pairs, so that under the action of external force formed in a clamping or hanging mode, the sensing grids 152 in any direction deform, the controller 160 can sense the deformation of the peripheral portion 112 by means of the sensing grids 152 of the strain gauge 150, the deformation of the peripheral portion 112 can be sensed more comprehensively, and the monitoring reliability of the touch display module 10 is improved.
The electronic device provided in an embodiment of the present application includes the touch display module 10 described above.
Fig. 10 is a flowchart illustrating a monitoring method for monitoring the touch display module 10 according to an embodiment of the disclosure.
Referring to fig. 10, a monitoring method for monitoring the touch display module 10 according to an embodiment of the present application includes the following steps:
s210, acquiring a first electric signal correspondingly generated by the strain gauge 150 before the touch display module 10 is in circulation;
s220, obtaining a second electric signal generated correspondingly by the strain gauge 150 in the circulation of the touch display module 10;
and S230, if the absolute difference between the second electric signal and the first electric signal is larger than a preset value, stopping the circulation of the touch display module 10.
The preset value may be zero or a value approaching zero, for example, 0.5, and if the second electrical signal is approximately equal to the first electrical signal, the touch display module 10 is controlled to continue to circulate.
The second electrical signal generated by the strain gauge 150 during the circulation of the touch display module 10 can be monitored, and compared with the second electrical signal, if the absolute difference between the second electrical signal and the first electrical signal is greater than the preset value, it is indicated that the second electrical signal has a larger difference than the first electrical signal, and the touch display module 10 is likely to have an internal degumming state due to an external force during the circulation, so that the touch display module 10 needs to stop the circulation, and the touch display module 10 is prevented from flowing into the whole assembly line. Therefore, the monitoring method can well control the touch display module 10, and prevent defective products of the touch display module from flowing into the whole machine assembly line.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (12)
1. The utility model provides a touch-control display module assembly which characterized in that includes:
the touch module and the substrate are stacked; the touch module comprises a touch part and a peripheral part surrounding the touch part;
the protective frame is arranged on one side of the peripheral part, which is away from the substrate;
an adhesive layer disposed between the protective frame and the peripheral portion;
at least one strain gauge, perpendicular to the stacking direction of the touch module and arranged in the peripheral part, wherein the orthographic projection of the bonding layer on the substrate and the orthographic projection of the strain gauge on the substrate are overlapped with each other; and
the controller is electrically connected with all the strain gauges respectively to acquire electric signals correspondingly generated when the strain gauges deform;
the controller can sense the deformation of the peripheral part caused by external force formed by clamping or hanging in the circulation process of the touch display module by means of the strain gauge.
2. The touch display module of claim 1, wherein the controller comprises a wheatstone bridge, the wheatstone bridge comprises a first bridge circuit and a second bridge circuit with three arms, the strain gauge is electrically connected to the first bridge circuit, and the resistors of the three bridge arms are electrically connected to the second bridge circuit respectively to obtain the electric signals generated by the strain gauge during deformation.
3. The touch display module according to claim 2, wherein a plurality of the strain gauges are disposed in the peripheral portion around the periphery of the touch portion and spaced apart from each other.
4. The touch display module according to claim 3, wherein the controller includes a plurality of wheatstone bridges corresponding to the strain gages one by one, so as to obtain the electrical signals generated by the corresponding strain gages when the strain gages are deformed by using the wheatstone bridges.
5. The touch display module of claim 3, wherein the controller further comprises a multiplexer disposed in the first bridge circuit, the multiplexer being configured to be selectively electrically connected to one of the strain gauges to turn on the first bridge circuit.
6. The touch display module according to claim 3, further comprising wires corresponding to the strain gauges one by one, wherein the strain gauges are electrically connected with the first bridge circuit through the corresponding wires to conduct the first bridge circuit;
the orthographic projection of the wire on the touch module falls in the range of the peripheral part.
7. The touch display module of claim 1, further comprising an ink layer disposed between the peripheral portion and the substrate, wherein an orthographic projection of the ink layer on the substrate and an orthographic projection of the strain gauge on the substrate overlap each other.
8. The touch display module according to claim 2, wherein the strain gauge comprises at least one sensitive gate and an insulating protection layer covering all the sensitive gates;
the two ends of each sensitive grid are respectively and electrically connected with the controller.
9. The touch display module of claim 8, wherein the strain gauge comprises two sensitive grids connected in parallel to the controller, wherein one of the sensitive grids is arranged along a first direction, and the other sensitive grid is arranged along a second direction;
the first direction and the second direction intersect each other and are both parallel to the insulating protection layer.
10. The touch display module of claim 8, wherein the strain gauge comprises three sensitive grids connected in parallel to the controller, a first one of the sensitive grids being arranged along a first direction, a second one of the sensitive grids being arranged along a second direction, and a third one of the sensitive grids being arranged along a third direction;
the first direction, the second direction and the third direction are intersected in pairs and are parallel to the insulating protection layer.
11. An electronic device, comprising a touch display module according to any one of claims 1-10.
12. A monitoring method, characterized in that the touch display module set according to any one of claims 1 to 10 is monitored, the monitoring method comprising:
acquiring a first electric signal generated by the strain gauge before the touch display module flows;
acquiring a second electric signal generated by the strain gauge in the touch display module circulation;
and if the absolute difference value of the second electric signal and the first electric signal is larger than a preset value, stopping the circulation of the touch display module.
Priority Applications (1)
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