CN114608818A - Folding screen crease detection device and method thereof - Google Patents
Folding screen crease detection device and method thereof Download PDFInfo
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- CN114608818A CN114608818A CN202210195773.4A CN202210195773A CN114608818A CN 114608818 A CN114608818 A CN 114608818A CN 202210195773 A CN202210195773 A CN 202210195773A CN 114608818 A CN114608818 A CN 114608818A
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Abstract
The embodiment of the disclosure discloses a folding screen crease detection device and a method thereof, wherein the device judges the state of a crease generated by a folding screen component in the folding motion by sending and receiving detection waves through a detection mechanism, and if receivers of the detection mechanism can receive the detection waves generated by a corresponding generator, the folding screen component is proved to have no obvious crease and to be a normal screen; if part of receivers of the detection mechanism cannot receive the detection waves generated by the corresponding generators, the condition that obvious creases exist in the folding screen assembly at the moment is proved, and the corresponding range of the creases is the position range of all receivers in the detection mechanism, which do not receive the detection waves. The embodiment of the disclosure realizes the detection of the folding screen assembly crease through the detection wave, is not influenced by the resolution and the surface light source, can acquire more accurate data, and solves the technical problem that the failure condition of the screen is judged inaccurately by the surface defect detection in the prior art.
Description
Technical Field
The disclosure relates to the field of display panels, in particular to a folding screen crease detection device and a method thereof.
Background
The folding screen is a new display technology form, which is a screen made of flexible material and capable of displaying images, and is installed on a foldable device, and the form of the display screen is changed by folding and unfolding. Due to material and manufacturing process issues, the folded screen may develop creases in the screen surface after folding and unfolding, which may be due to material issues, separation of layers within the screen, or accelerated aging due to damaged screen surfaces. The position, the shape and the like of the crease can influence the use experience and the service life of the screen, so that the detection of the crease has important significance for evaluating the use effect of the screen and improving the production manufacturing process and materials of the folding screen.
At present, for the crease problem of a folding screen, surface defect detection is mostly carried out on the basis of an optical imaging technology, and a special device and a special method are not used for failure analysis and crease detection. Although the optical imaging technology can better reflect the position and the form of the crease, the optical imaging technology is influenced by the resolution and a screen surface reflection light source, a clear and complete surface image cannot be shot usually, and the failure condition of the screen cannot be judged accurately.
Disclosure of Invention
The embodiment of the disclosure provides a folding screen crease detection device and a method thereof, which can solve the technical problem that the failure condition of a screen is not accurately judged by surface defect detection in the prior art.
The embodiment of the present disclosure provides a folding screen crease detection device, including: the device comprises a fixed plate, a driving mechanism, a detection mechanism and a control system; the fixing plates comprise a first fixing plate and a second fixing plate, wherein one side parts of the first fixing plate and the second fixing plate are hinged with each other so as to be fixed with two ends of the folding screen assembly respectively; the driving mechanism is in driving connection with the second fixing plate and drives the second fixing plate to rotate around a hinge point; the detection mechanism comprises a plurality of generators and a plurality of corresponding receivers, the generators are arranged on the first fixing plate and the second fixing plate along one side part of the fixing plate from the hinged part of the fixing plate, and the receivers are arranged on the first fixing plate and the second fixing plate along the other opposite side part of the fixing plate; the control system is respectively in electric signal connection with the driving mechanism, the generator and the receiver; the control system controls the driving mechanism to drive the second fixing plate to rotate so as to enable the second fixing plate to do folding motion relative to the first fixing plate; simultaneously, the generator sends a detection wave along the surface of the folding screen assembly, and the receiver receives the detection wave to determine fold information of the folding screen assembly.
Optionally, the fixed plate further includes a rotation shaft, the rotation shaft is fixedly connected to the second fixed plate and rotatably connected to the first fixed plate, the rotation shaft is connected to the driving mechanism in a driving manner, and the driving mechanism drives the rotation shaft to rotate to drive the second fixed plate to rotate around the rotation shaft.
Optionally, the detector is spaced from the fixed plate such that a folded screen assembly is located between the detection wave and the fixed plate.
Optionally, the generator is arranged at an interval along one side of the first fixing plate and the second fixing plate from the hinge joint of the fixing plates
The embodiment of the present disclosure further provides a method for detecting a folding screen crease, where the method is applied to the folding screen crease detection apparatus described above, and the method includes: the driving mechanism is controlled to drive the fixing plate to do folding motion so as to drive the folding screen to do folding motion; monitoring whether each receiver receives detection waves sent by a corresponding generator along the surface of the folding screen to obtain detection information of each receiver, wherein the detection information comprises whether the receiver receives the detection waves; and determining crease information of creases generated by the folding motion of the folding screen according to the detection information.
Optionally, the detection information includes position coordinates of each receiver, the fold information includes a range of a fold, and determining, according to the detection information, fold information of a fold generated by the folding motion of the folding screen specifically includes:
determining a corresponding crease point and a corresponding crease point coordinate according to the position coordinate of the receiver which does not receive the detection wave;
according to the crease point coordinates, gathering adjacent crease points to form a crease gathering line;
taking crease point coordinates of crease points at two ends of the crease gathering line;
and determining the range of the crease according to the crease point coordinates.
Optionally, after taking the fold point coordinates of the fold points at the two ends of the fold line aggregation line and recording as the start point coordinate and the end point coordinate of the fold, the method further includes:
and determining the position coordinates of the crease according to the crease point coordinates.
Optionally, the receiver is along the fixed plate lateral part is formed two rows side by side and is set up, has the interval between two rows of the receiver, the generator also corresponds to two rows of settings to make folding screen subassembly be located two rows between the detection ripples that the generator sent, the detection information still includes the row of place of each receiver, crease information includes the type of crease, according to detection information, confirm the crease information of folding crease that folding motion produced is done to the folding screen specifically includes:
and if the receivers which do not receive the detection waves are all in the same row, determining that the folded screen comprises debonding fracture type creases.
Optionally, the detection information further includes positions of the receivers, and the determining, according to the detection information, fold information of a fold generated by the folding motion of the folding screen specifically includes:
if the receivers which do not receive the detection waves are adjacent to each other, and the receivers which are positioned in the middle and do not receive the detection waves are positioned in different rows, determining that the folding screen comprises a bending crease;
otherwise, determining that the folded screen comprises the composite crease.
In the embodiment of the disclosure, the control mechanism judges the state of the crease generated by the folding screen assembly in the folding motion by sending and receiving the detection wave through the detection mechanism, and if the receivers of the detection mechanism can receive the detection wave generated by the corresponding generator, the folding screen assembly is proved to have no obvious crease and to be a normal screen; if part of receivers of the detection mechanism cannot receive the detection waves generated by the corresponding generators, the condition that obvious creases exist in the folding screen assembly at the moment is proved, and the corresponding range of the creases is the position range of all the receivers in the detection mechanism, which do not receive the detection waves. The embodiment of the disclosure realizes the detection of the folding screen assembly crease through the detection wave, is not influenced by the resolution and the surface light source, can acquire more accurate data, and solves the technical problem that the failure condition of the screen is judged inaccurately by the surface defect detection in the prior art.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a perspective view of a folding screen fold detection device provided in an embodiment of the present disclosure.
Fig. 2 is a perspective view of a fixing plate according to the corresponding embodiment of fig. 1.
Fig. 3 is a cross-sectional view of the crease detection device according to an embodiment shown in fig. 1.
Fig. 4 is a cross-sectional view of the crease detection device shown in fig. 1 according to another embodiment.
Fig. 5 is a flowchart of a method for detecting a fold of a folding screen according to an embodiment of the present disclosure.
FIG. 6 is a schematic illustration of an un-creased folded screen assembly in detecting waves as provided by embodiments of the present disclosure.
FIG. 7 is a schematic illustration of a folded screen assembly with debond and break type creases in a detection wave according to an embodiment of the present disclosure.
FIG. 8 is a schematic illustration of a folded screen assembly with fold-type creases in a detection wave according to an embodiment of the disclosure.
Description of reference numerals:
100. a fixing plate; 200. a drive mechanism; 300. a detection mechanism; 900. a folding screen assembly; 110. a first fixing plate; 120. a second fixing plate; 102. an opening; 310. a generator; 320. a receiver.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, and are not intended to limit the present disclosure. In the present disclosure, unless otherwise specified, use of the directional terms "upper" and "lower" generally refer to upper and lower, and specifically to the orientation of the drawing figures in the drawings, in the actual use or operating condition of the device; while "inner" and "outer" are with respect to the outline of the device.
The embodiment of the disclosure provides a folding screen crease detection device and a method thereof. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
The utility model provides a folding screen crease detection device, this folding screen crease detection device are used for carrying out the crease to folding screen subassembly 900 on the folding screen equipment and detect.
Referring to fig. 1 to 2, the folding screen crease detecting device includes a fixing plate 100, a driving mechanism 200, a detecting mechanism 300 and a control system (not shown).
The fixing plate 100 includes a first fixing plate 110 and a second fixing plate 120, one side of which is hinged to each other. The first and second fixing plates 110 and 120 are used to hold the folding screen assembly 900. The driving mechanism 200 is drivingly connected to the second fixing plate 120 to drive the second fixing plate 120 to rotate around the hinge point between the second fixing plate and the first fixing plate 110, so as to perform a folding motion relative to the first fixing plate 110. The fixed plate 100 of the detecting mechanism 300, which carries one side of the folding screen assembly 900, includes a plurality of generators 310 and a plurality of receivers 320, wherein the plurality of generators 310 are respectively disposed side by side on one side of the first fixed plate 110 and one side of the second fixed plate 120, and the plurality of receivers 320 are disposed opposite to the generators 310 and are respectively disposed side by side on the other side of the first fixed plate 110 and the other side of the second fixed plate 120.
The folding screen assembly 900 is disposed on the fixing plate 100 at a position between the generator 310 and the receiver 320, and has one end disposed on the first fixing plate 110 and connected and fixed to the first fixing plate 110; the other end is disposed on the second fixing plate 120 and is connected and fixed with the second fixing plate 120.
When detecting the folding mark, the control system controls the driving mechanism 200 to drive the second fixing plate 120 to rotate around the hinge point between the second fixing plate and the first fixing plate 110, so as to perform a folding motion relative to the first fixing plate 110, and further perform a folding motion on the folding screen assembly 900. As the folding motion progresses, the folded screen assembly 900 is folded over a plurality of folds, generally in a direction extending from one generator 310 to the corresponding receiver 320. While the folding screen assembly 900 is being folded, each generator 310 on one side of the folding screen assembly 900 generates a detection wave to a corresponding receiver 320 on the other side of the folding screen assembly 900, and the control system determines the fold state of the folding screen assembly 900 based on the detection wave received by each receiver 320. If the folding screen assembly 900 forms creases due to multiple folding, the transmission channel of part of the detection waves is blocked by certain bulging, the receiver 320 which does not receive the detection waves cannot receive the detection waves, that is, the detection waves corresponding to the receiver 320 which does not receive the detection waves are blocked by the bulged creases, and crease information such as the position and the range of the creases is determined according to the receiver 320 which does not receive the detection waves.
The first fixing plate 110 and the second fixing plate 120 may be hinged by a hinge ring, a pivot, and various fasteners.
In an embodiment of the present application, the fixing plate 100 further includes a rotating shaft (not shown), and the rotating shaft is fixedly connected to the second fixing plate 120 and rotatably connected to the first fixing plate 110. The driving mechanism 200 drives the rotating shaft to rotate, so as to drive the second fixing plate 120 to rotate around the rotating shaft, thereby implementing the folding motion of the second fixing plate 120 relative to the first fixing plate 110.
The driving mechanism 200 may only include a driver such as a motor, and the driver directly connects to the rotating shaft to output power, so as to rotate the second fixing plate 120 around the rotating shaft, thereby implementing the folding motion of the second fixing plate 120 relative to the first fixing plate 110. A link mechanism such as a crank and rocker mechanism may also be included to pull the second fixing plate 120 to move, so as to realize the folding movement of the second fixing plate 120 relative to the first fixing plate 110. In this embodiment, the driving mechanism 200 is directly connected to the rotating shaft, and drives the rotating shaft to rotate, so as to drive the second fixing plate 120 to rotate around the rotating shaft.
The detection wave emitted by the generator 310 of the detection mechanism 300 may be infrared wave, ultrasonic wave, high-frequency electromagnetic wave, and other high-frequency waves with poor penetrability, and the detection wave is blocked and reflected or absorbed when encountering the raised fold, and cannot penetrate through the entire folding screen assembly 900 along the fold direction, so that various information of the fold, such as the position range type, can be determined according to the receiver 320 which does not receive the detection wave.
In the embodiment of the present application, the generators 310 are spaced along one side of the first and second fixing plates 110 and 120 from the hinge of the fixing plate 100; correspondingly, the receivers 320 are spaced along the other side of the first and second fixing plates 110 and 120 from the hinge of the fixing plate 100. That is, the generators 310 on the first fixing plate 110 are spaced apart from each other from the first fixing plate 110 toward the end of the second fixing plate 120 along the side of the first fixing plate 110 toward the direction away from the second fixing plate 120, and the generators 310 on the second fixing plate 120 are spaced apart from each other from the second fixing plate 120 toward the end of the first fixing plate 110 toward the side of the second fixing plate 120 toward the direction away from the first fixing plate 110; correspondingly, the receivers 320 on the first fixing plate 110 are spaced from the first fixing plate 110 toward the end of the second fixing plate 120 along the side of the first fixing plate 110 toward the direction away from the second fixing plate 120, and the receivers 320 on the second fixing plate 120 are spaced from the second fixing plate 120 toward the end of the first fixing plate 110 along the side of the second fixing plate 120 toward the direction away from the first fixing plate 110. Because the crease of the folding screen assembly 900 generally appears at the position where the folding screen is just hinged to the first fixing plate 110 and the second fixing plate 120, the detection module is arranged near the hinged position of the fixing plate 100 more specifically, and the problem of missing identification is avoided.
Referring to fig. 4, the detector is spaced from the fixed plate 100, and the detection wave generated by the generator 310 propagates along the surface of the folding screen assembly 900 on the side of the folding screen assembly 900 away from the fixed plate 100, and is received by the receiver 320. When the folded screen assembly 900 is creased and bowed, the detection wave at the crease is blocked.
The generators 310 on the first fixing plate 110 and the generators 310 on the second fixing plate 120 may be located on the same side of the fixing plate 100, or on two opposite sides of the fixing plate 100; correspondingly, the receiver 320 on the first fixing plate 110 and the receiver 320 on the second fixing plate 120 may be located on the same side of the fixing plate 100, or on two opposite sides of the fixing plate 100.
Generally, the generator 310 on the first fixing plate 110 and the generator 310 on the second fixing plate 120 are located on the same side of the fixing plate 100 and arranged along a straight line, and correspondingly, the receiver 320 on the first fixing plate 110 and the receiver 320 on the second fixing plate 120 are located on the other side of the fixing plate 100 and arranged along a straight line, so as to reduce the complexity of routing and simplify the overall structure of the folding screen crease detection device.
In some embodiments of the present disclosure, referring to fig. 3, the transmitter and the receiver 320 are detachably connected and fixed on the surface of the bearing surface of the fixing plate 100 by means of fitting, clamping, and the like, so as to simplify the installation structure and facilitate the assembly and disassembly of the detection module.
In other embodiments of the present disclosure, referring to fig. 4, the openings 102 are disposed on two opposite sides of the first fixing plate 110 and the second fixing plate 120, the openings 102 are disposed corresponding to the generator 310 and the receiver 320, and the generator 310 and the receiver 320 are accommodated in the openings 102 and connected to the fixing plate 100 by bonding, clamping, screwing, and the like. In this embodiment, the opening 102 not only can function as a positioning opening to achieve accurate installation of the generator 310 and the receiver 320, but also can function as a limiting function for the generator 310 and the receiver 320 to increase firmness of connection of the generator 310, the receiver 320 and the fixing plate 100.
Referring to fig. 5, the method for controlling the folding screen folding line detection device to perform folding line detection by the control mechanism at least includes the following steps:
s100, controlling a driving mechanism to drive a fixing plate to do folding motion so as to drive a folding screen to do folding motion;
step S200, monitoring whether each receiver receives a detection wave sent by a corresponding generator along the surface of the folding screen to obtain detection information of each receiver, wherein the detection information comprises whether the receiver receives the detection wave;
and step S300, determining crease information of a crease generated by the folding motion of the folding screen according to the detection information.
In this embodiment, in response to the power-on command, the control mechanism driving mechanism 200 drives the fixing plate 100 to perform a folding motion, and the folding screen assembly 900 connected and fixed to the fixing plate 100 also performs a folding motion. During the folding motion of the folding screen assembly 900, the control mechanism obtains the detection information of each receiver 320 by monitoring whether each receiver 320 receives the detection wave transmitted by the corresponding generator 310 along the surface of the folding screen, and then determines the crease information of the crease generated by the folding motion of the folding screen according to the detection information.
The detection information includes whether each receiver 320 receives the detection wave, and various fold information such as the position, range, form, and change process of the fold can be analyzed according to the condition that each receiver 320 receives the detection wave.
In step S100, the number of folding movements is plural. The folded screen assembly 900 needs to be folded repeatedly for a plurality of times before an obvious crease appears, generally speaking, the service life of the folded screen assembly 900 is generally different from tens of thousands of folds to tens of thousands of folds, so in this embodiment, the number of folding movements is a plurality of times, and the folded screen assembly 900 is stopped until the folded screen assembly 900 is completely damaged, so as to observe the folded screen assembly 900 more comprehensively.
In step S200, detection information of each receiver 320 is collected, the detection information including information such as whether or not each receiver 320 has received the detection wave and the position coordinates of each receiver 320. According to the detection information, various crease information such as the position, the range, the form and the change process of the crease can be analyzed and determined, and the method has high reference significance for analyzing the service life of the folding screen assembly 900.
In step S300, different fold information may be obtained according to different detection information, specifically, in some embodiments, the detection information includes position coordinates of each receiver 320, and step S300 includes:
determining a corresponding crease point and a corresponding crease point coordinate according to the position coordinate of the receiver 320 which does not receive the detection wave;
according to the crease point coordinates, gathering adjacent crease points to form a crease gathering line;
taking crease point coordinates of crease points at two ends of the crease gathering line;
and determining the range of the crease according to the crease point coordinates.
In this embodiment, the position of the folding screen assembly 900 corresponding to the receiver 320 that does not receive the detection wave is the position where the fold appears, and the arched fold blocks the propagation of the detection wave, so the receiver 320 corresponding to the position cannot receive the detection wave. The range of each fold on the folding screen assembly 900 can be obtained by recording the position coordinates of the receiver 320 that did not receive the detection wave, mapping it onto the folding screen assembly 900 to obtain the fold point coordinates, and grouping adjacent fold points together. Specifically, the fold point coordinates of the fold points at both ends of the fold line concentration line are taken, and the both ends are recorded as the upper limit and the lower limit of the fold, that is, the range of the fold is obtained.
In some embodiments of the present disclosure, after obtaining the fold point coordinates, the position coordinates of the fold may also be determined according to the fold point coordinates.
Specifically, there are various ways of representing the fold coordinate, and it may be represented by the fold range, or may be represented by the coordinates of points such as the end point coordinate and the midpoint coordinate of the fold. In this embodiment, the coordinates of the middle point are expressed, and the specific method for determining the position coordinates of the fold is to take the coordinates of the fold points at the two ends of the fold line, and average the coordinates to obtain the coordinates of the middle point of the fold, that is, the coordinates of the fold.
Referring to fig. 6 to 8, in the drawings, 301 denotes an area where a detection wave is not blocked, 901 denotes a debonding breaking type fold, and 902 denotes a bending type fold.
In some embodiments, as shown in fig. 3, the receivers 320 are arranged in two rows along the side of the fixing plate 100, the two rows of receivers 320 have a spacing therebetween, the generators 310 are also arranged in two rows, so that the folding screen assembly 900 is located between the detection waves emitted by the two rows of generators 310, the detection information further includes the row of each receiver 320, the fold information includes the type of the fold, and the step S300 may specifically include:
if the receivers which do not receive the detection waves are all in the same row, it is determined that the folded screen includes debonding fracture-type creases 901.
In some embodiments of the present disclosure, the crease information includes a type of crease, which refers to a type of damage at the crease. After the folded screen assembly 900 is folded a number of times, various types of damage can occur and leave a mark, i.e., a crease. When the measured fold is protruded to one side, it can be determined that a broken fracture-type fold appears in the folded screen assembly 900 with the fold or a debonded fold appears in the folded screen assembly 900, i.e., the debonded fracture-type fold 901. Generally, when such a crease occurs, it protrudes to the side away from the fixed plate 100, and the crease has a larger range, so that the receiver 320 located in a row away from the fixed plate 100 is blocked from receiving the detection wave. In other embodiments, the comprehensive determination may be further performed according to the row of the receivers 320 that do not receive the detection wave and the crease range, and if the receivers 320 that do not receive the detection wave are all in a row away from the fixed plate 100 and the crease range is large, it is determined that the folding screen includes the debonding fracture type crease 901.
In some embodiments, the detection information further includes the position of each receiver 320, and the step S300 may further specifically include:
if the receivers which do not receive the detection waves are adjacent to each other, and the receivers which do not receive the detection waves and are positioned in the middle are positioned in different rows, determining that the folding screen comprises a bending crease 902;
otherwise, determining that the folded screen comprises the composite crease.
When it is determined that the fold is protruding toward both sides, if the middle of the fold is concave toward one side and the two sides of the fold are convex toward the opposite side, it can be determined that a fatigue bending type fold 902 is present in the fold folding screen assembly 900. Generally, when such a crease occurs, the middle portion of the crease is recessed toward the side close to the fixing plate 100, the two sides of the crease are raised toward the side away from the fixing plate 100, and the range of the crease is not large, so that the receiver 320 located in the row close to the fixing plate 100 is blocked at the middle portion to receive the detection wave, and the receiver 320 located in the row far from the fixing plate 100 is blocked at the two sides to receive the detection wave. In other embodiments, the comprehensive determination may also be made according to the row and the crease range of the receiver 320 that does not receive the detection wave, and if the receiver 320 that is located in the row far from the fixed plate 100 is listed on both sides of the receiver 320 that is located in the row near the fixed plate 100 and the crease range is not large, it is determined that the folding screen includes the bending crease 902.
If the above conditions are not met, the folding screen includes a composite crease, that is, both the debonding fracture type crease 901 and the bending type crease 902 exist on the folding screen.
In other embodiments of the present disclosure, the control mechanism drives the fixing plate 100 to perform the folding movement and records the number of folding movements, i.e., the folding times, and correlates the folding times with the fold information so as to analyze the relationship between the folds and the folding times. For example, the number of folds when a significant crease occurs, the number of folds when a peel and break type crease occurs, etc., and the results of these parameters can be used to determine whether the life and quality of the folded screen assembly 900 meet the requirements.
The device and the method for detecting the fold of the folding screen provided by the embodiment of the disclosure are described in detail above, a specific example is applied in the description to explain the principle and the implementation of the disclosure, and the description of the above embodiment is only used to help understand the method and the core idea of the disclosure; meanwhile, for those skilled in the art, according to the idea of the present disclosure, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present description should not be construed as a limitation to the present disclosure.
Claims (10)
1. A folding screen crease detection device, characterized in that the device comprises: the device comprises a fixed plate, a driving mechanism, a detection mechanism and a control system;
the fixing plates comprise a first fixing plate and a second fixing plate, wherein one side edge of the first fixing plate and one side edge of the second fixing plate are hinged with each other, so that the first fixing plate and the second fixing plate are respectively fixed with two ends of the folding screen assembly;
the driving mechanism is in driving connection with the second fixing plate and drives the second fixing plate to rotate around a hinge point;
the detection mechanism is arranged on one surface of the fixed plate, which bears the folding screen assembly, and comprises a plurality of generators and a plurality of corresponding receivers, the generators are respectively arranged on one side part of the first fixed plate and one side part of the second fixed plate side by side, and the receivers are arranged opposite to the generators and are respectively arranged on the other side part of the first fixed plate and the other side part of the second fixed plate side by side;
the control system is respectively in electric signal connection with the driving mechanism, the generator and the receiver;
the control system controls the driving mechanism to drive the second fixing plate to rotate so as to enable the second fixing plate to do folding motion relative to the first fixing plate, and therefore the folding screen assembly is driven to do folding motion; meanwhile, the generator sends detection waves along the surface of the folding screen assembly on one side of the folding screen assembly, and the receiver receives the detection waves on the other side of the folding screen assembly to determine the crease information of the folding screen assembly.
2. The device for detecting folding screen fold according to claim 1, wherein the fixing plate further comprises a rotating shaft, the rotating shaft is fixedly connected to the second fixing plate and rotatably connected to the first fixing plate, the rotating shaft is drivingly connected to the driving mechanism, and the driving mechanism drives the rotating shaft to rotate so as to drive the second fixing plate to rotate around the rotating shaft.
3. The folding screen fold detection apparatus of claim 1 wherein said detector is spaced from said fixed plate such that the folding screen assembly is positioned between said detection wave and said fixed plate.
4. The folding screen fold detection device of claim 1 wherein said generators are spaced along one side of said first and second fixed panels from the hinge of said fixed panels.
5. The apparatus for detecting folding screen fold as claimed in claim 1, wherein the first fixing plate and the second fixing plate are provided with openings at opposite sides thereof, the openings corresponding to the generator and the receiver, and the generator and the receiver are received in the openings.
6. A folding screen crease detection method, characterized in that the method employs the folding screen crease detection device according to any one of claims 1 to 5, and the method comprises:
the driving mechanism is controlled to drive the fixing plate to do folding motion so as to drive the folding screen to do folding motion;
monitoring whether each receiver receives detection waves sent by a corresponding generator along the surface of the folding screen to obtain detection information of each receiver, wherein the detection information comprises whether the receiver receives the detection waves;
and determining crease information of creases generated by the folding motion of the folding screen according to the detection information.
7. The method for detecting a folding crease of a folding screen according to claim 6, wherein the detection information includes position coordinates of each receiver, the crease information includes a range of creases, and the determining the crease information of the creases generated by the folding motion of the folding screen according to the detection information specifically includes:
determining a corresponding crease point and a corresponding crease point coordinate according to the position coordinate of the receiver which does not receive the detection wave;
according to the crease point coordinates, gathering adjacent crease points to form a crease gathering line;
taking crease point coordinates of crease points at two ends of the crease gathering line;
and determining the range of the crease according to the crease point coordinates.
8. The method for detecting a fold of a folding screen according to claim 7, wherein, after taking the coordinates of the fold point at both ends of the fold line, and recording the coordinates as the coordinates of the start point and the coordinates of the end point of the fold, the method further comprises:
and determining the position coordinates of the crease according to the crease point coordinates.
9. The method for detecting the folding crease of the folding screen according to claim 1, wherein the receivers are arranged in two rows along the side of the fixing plate, the two rows of receivers have a space therebetween, the generators are also arranged in two rows, so that the folding screen assembly is located between the two rows of detection waves emitted by the generators, the detection information further includes the row of each receiver, the crease information includes the type of the crease, and the crease information of the crease generated by the folding movement of the folding screen is determined according to the detection information, specifically including:
and if the receivers which do not receive the detection waves are all in the same row, determining that the folded screen comprises debonding fracture type creases.
10. The method for detecting a folding crease of a folding screen according to claim 9, wherein the detection information further includes positions of receivers, and the determining the information of the folding crease generated by the folding movement of the folding screen according to the detection information specifically includes:
if the receivers which do not receive the detection waves are adjacent to each other, and the receivers which are positioned in the middle and do not receive the detection waves are positioned in different rows, determining that the folding screen comprises a bending crease;
otherwise, determining that the folded screen comprises the composite crease.
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