Display abnormal sound detection device and method for detecting abnormal sound of notebook computer display

Abstract

The present invention provides a display abnormal sound detection device and a method for detecting the abnormal sound of a notebook computer display. The display abnormal sound detection device includes: a base; a bracket assembly, the bracket assembly includes a first bracket, a second bracket and at least two third brackets arranged at intervals, and the bracket assembly can rotate relative to the base; an adhesive layer, the adhesive layer is arranged on part of the surfaces of the first bracket and the second bracket, and the adhesive layer is used to fix the display on the bracket assembly; a connection assembly, the connection assembly includes a first connecting piece and a second connecting piece; a sensor, the sensor is arranged on the base and is used to receive the wave signal during the rotation of the display relative to the base; a data processing device, which is used to receive and process the wave signal transmitted by the sensor. The above display abnormal sound detection device can simulate the opening and closing process after the display is assembled into a whole machine. It is not necessary to assemble the display into a whole machine, and only single-display detection is required. It can avoid the risk of display abnormal sound in advance and is convenient for targeted searching of the source of abnormal sound.

Description

Technical Field

[0001] The present invention relates to the field of display screen testing, and specifically, to a display screen abnormal sound detection device and a method for detecting abnormal sound of a notebook computer display screen. Background Art

[0002] Notebook computer display screens on the market have different sizes, and the styles and materials of the display screens are also diverse. During the opening and closing process of the notebook computer, abnormal sounds such as mutual friction and degumming of the internal materials of the display screen may occur due to factors such as system deformation. When display screens of different specifications are assembled onto the notebook computer, the abnormal sound control during the opening and closing process of the notebook computer will be carried out. This evaluation standard is relatively subjective and cannot quantify the standard of abnormal sound. During the opening and closing process of the notebook computer display screen under force, the abnormal sounds related to the display screen usually come from the sounds such as the FPC (flexible printed circuit board) popping, tape wrinkling, tape degumming, and material friction inside the display module caused by deformation when the display screen is paired with the system, which seriously affects the customer experience.

[0003] However, currently, panel manufacturers do not have an evaluation plan for the abnormal sound of the display screen monomer. The main reason is that the display screen monomer cannot simulate the opening and closing deformation after assembling the whole machine, and abnormal sounds can only be found after the display screen is assembled onto the whole machine. This leads to the inability to avoid the risk of display screen abnormal sound in advance, the lack of pertinence in the analysis process of abnormal sound, and the inability to accurately find the source of abnormal sound.

[0004] Currently, the existing abnormal sound detection devices on the market are not applicable to the display panel industry. There is an urgent need to propose a detection device that can detect the abnormal sound of the display screen monomer and a method for detecting the abnormal sound of the notebook computer display screen. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. In one aspect of the present invention, a display abnormal sound detection device is proposed. The display abnormal sound detection device includes: a base; a bracket assembly, the bracket assembly includes a first bracket, a second bracket, and at least two third brackets arranged at intervals. The first bracket and the second bracket are symmetrically arranged and are used to carry the display screen. The third brackets connect the first bracket and the second bracket and are used to simulate the strength of the display screen housing. The bracket assembly can rotate relative to the base; an adhesive layer, the adhesive layer is arranged on partial surfaces of the first bracket and the second bracket, and the adhesive layer is used to fix the display screen to the bracket assembly; at least two connecting components, the connecting components include a first connecting piece and a second connecting piece. The first connecting piece is connected to the base, the second connecting piece is fixed to the first bracket or the second bracket, and the first connecting piece and the second connecting piece are connected; a sensor, the sensor is arranged on the base and is used to receive the wave signal during the rotation of the display screen relative to the base; a data processing device, the data processing device is used to receive and process the wave signal transmitted by the sensor. Thus, the above display abnormal sound detection device can simulate the opening and closing process of the display screen after being assembled into a complete machine. The sensor can receive the wave signal during the rotation of the display screen relative to the base, and whether abnormal sound is emitted during the opening and closing process of the display screen after being assembled into a complete machine can be judged through the characteristics of the wave signal; this display abnormal sound detection device does not need to assemble the display screen into a complete machine, and only single display screen detection is adopted, which can avoid the risk of abnormal sound of the display screen in advance and is convenient for specifically finding the source of abnormal sound.

[0006] According to an embodiment of the present invention, the connecting component is a hinge. One end of the first bracket and one end of the second bracket are respectively connected to the base through the connecting component. The first bracket and the second bracket are arranged in parallel and are both substantially perpendicular to the connection line of at least two of the connecting components. Thus, it is beneficial to further improve the use performance and overall stability of the detection device.

[0007] According to an embodiment of the present invention, the connection mode between the first connecting piece and the base is as follows: the base has a first fixing hole, the first connecting piece has a first locking hole, and a screw is screwed into the first fixing hole and the first locking hole so that the first connecting piece is fixedly arranged on the base; or, the base has a first sliding rail, the first connecting piece has the first locking hole, a screw is screwed into the first sliding rail and the first locking hole, and is fixed by a nut so that the first connecting piece is fixedly arranged on the base; or, the base has the first sliding rail and a first sliding member, the first sliding member can move along the first sliding rail, and the first connecting piece is connected to the first sliding member. Thus, the first connecting piece can be arranged on the base.

[0008] According to an embodiment of the present invention, the first bracket and the second bracket both have second fixing holes, and the second connecting member has second locking holes. Screws are screwed into the second fixing holes and the second locking holes, so that the second connecting member is fixedly connected to the first bracket and the second bracket. Thus, a firm connection between the connection assembly and the first bracket and the second bracket can be achieved.

[0009] According to an embodiment of the present invention, the connection manner between the third bracket and the first bracket and the second bracket is as follows: the first bracket and the second bracket both have first threaded holes, and the third bracket has second threaded holes. Screws are screwed into the first threaded holes and the second threaded holes, so that the third bracket is fixedly connected to the first bracket and the second bracket; or, the first bracket and the second bracket both have second sliding rails, the third bracket has the second threaded holes, screws are screwed into the second sliding rails and the second threaded holes, and are fixed by nuts, so that the third bracket is fixedly connected to the first bracket and the second bracket; or, the first bracket and the second bracket both have the second sliding rails and second sliding members, the second sliding members can move along the second sliding rails, and the third bracket is connected to the second sliding members. Thus, the third bracket can be arranged on the first bracket and the second bracket, and the height of the third bracket can also be adjusted to simulate the opening and closing process of display screens made of different materials.

[0010] According to an embodiment of the present invention, the sensor is arranged on the base in the following manner: the sensor is fixedly arranged on the base by glue or screws; or, a third sliding rail is arranged on the base, the sensor has a through hole, the detection device further includes a connecting member, the connecting member includes a third sliding member and a connecting rod fixedly connected to the third sliding member, the sliding member is arranged in the third sliding rail, the connecting rod passes through the through hole, and one end of the connecting rod away from the third sliding member has a thread, and a nut is screwed onto the thread of the connecting rod, so that the sensor is arranged on the base. Thus, the sensor can be arranged on the base, which is beneficial to better receiving the wave signals during the rotation of the display screen relative to the base.

[0011] According to an embodiment of the present invention, the first bracket and the second bracket have height scales. Thus, height scales are marked on the first bracket and the second bracket, which is convenient for adjusting the height of the third bracket.

[0012] According to an embodiment of the present invention, the bracket assembly can rotate 0 to 360 degrees relative to the base. Thus, different opening degrees after the display screen is assembled into the whole machine can be simulated by this detection device, and it can be applied to the abnormal sound detection of various notebook computer display screen monomers.

[0013] According to an embodiment of the present invention, the sensor is an acoustic wave sensor or a laser sensor, and the detection device includes at least two connecting components. The sensor is located on the line connecting the at least two connecting components. Thus, it is more conducive to receiving the wave signals emitted during the rotation of the display screen relative to the base by the sensor.

[0014] In another aspect of the present invention, the present invention provides a method for detecting abnormal sounds of a notebook computer display screen using the detection device described above. The method for detecting abnormal sounds of a notebook computer display screen using the detection device described above includes: fixing the notebook computer display screen on the bracket assembly of the detection device; electrically connecting the sensor of the detection device to a data processing device; applying an external force to the bracket assembly to rotate the bracket assembly relative to the base of the detection device, so that the angle between the bracket assembly and the base gradually increases to a preset angle, or the angle between the bracket assembly and the base gradually decreases from the preset angle to 0 degrees, where the preset angle is not less than the maximum opening and closing angle when the notebook computer display screen is in use; processing the wave signals measured by the sensor through the data processing device to determine whether there are abnormal sounds during the rotation of the notebook computer relative to the base. Thus, the above method can be used to detect abnormal sounds of the display screen monomer without assembling the display screen into a complete machine, effectively avoiding the problem of abnormal sounds of the display screen and being beneficial to improving the user experience effect. Description of the Drawings

[0015] Figure 1 Shows a schematic structural diagram of a display screen abnormal sound detection device according to an embodiment of the present invention;

[0016] Figure 2 Shows a schematic structural diagram of a connecting component according to an embodiment of the present invention;

[0017] Figure 3 Shows a partial schematic structural diagram of a display screen abnormal sound detection device according to an embodiment of the present invention;

[0018] Figure 4 Shows a schematic structural diagram of a base according to an embodiment of the present invention;

[0019] Figure 5 Shows a partial schematic structural diagram of a display screen abnormal sound detection device according to another embodiment of the present invention;

[0020] Figure 6 Shows a schematic structural diagram of a base according to another embodiment of the present invention;

[0021] Figure 7 Shows a partial schematic structural diagram of a display screen abnormal sound detection device according to yet another embodiment of the present invention;

[0022] Figure 8 shows a schematic structural diagram of a first bracket according to an embodiment of the present invention;

[0023] Figure 9 shows a schematic structural diagram of a third bracket according to an embodiment of the present invention;

[0024] Figure 10 shows a schematic structural diagram of a first bracket according to another embodiment of the present invention;

[0025] Figure 11 shows a partial schematic structural diagram of a display screen abnormal sound detection device according to still another embodiment of the present invention;

[0026] Figure 12 shows a partial schematic structural diagram of a display screen abnormal sound detection device according to still another embodiment of the present invention;

[0027] Figure 13 shows a schematic structural diagram of a base according to still another embodiment of the present invention;

[0028] Figure 14 shows a schematic structural diagram of a display screen abnormal sound detection device and a display screen according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100: base; 110: first fixing hole; 120: first sliding rail; 130: third sliding rail; 140: first sliding member; 200: bracket assembly; 210: first bracket; 220: second bracket; 230: third bracket; 240: second fixing hole; 250: first threaded hole; 260: second threaded hole; 270: second sliding rail; 280: height scale; 300: connection assembly; 310: first connecting member; 311: first locking hole; 320: second connecting member; 321: second locking hole; 400: sensor; 410: through hole; 500: adhesive layer; 600: screw; 700: nut; 800: connecting member; 810: connecting rod; 820: third sliding member; 10: adhesive; 20: notebook computer display screen. Detailed Description of the Invention

[0031] The embodiments of the present invention will be described in detail below. The embodiments described below are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention. For those not specified in the embodiments, the techniques or conditions described in the literature in the art or according to the product specifications are followed.

[0032] In one aspect of the present invention, the present invention provides a display screen abnormal sound detection device. Refer to Figure 1, the abnormal sound detection device for the abnormal sound display screen includes a base 100, a bracket assembly 200, at least two connecting assemblies 300, a sensor 400, an adhesive layer 500, and a data processing device (not shown in the figure). Among them, the bracket assembly 200 includes a first bracket 210, a second bracket 220, and at least two third brackets 230 arranged at intervals. The first bracket 210 and the second bracket 220 are symmetrically arranged and are used to carry the display screen. The third brackets 230 connect the first bracket 210 and the second bracket 220 and are used to simulate the strength of the display screen casing. The bracket assembly 200 can rotate relative to the base 100; the adhesive layer 500 is arranged on part of the surfaces of the first bracket 210 and the second bracket 220 and is used to fix the display screen to the bracket assembly 200; the connecting assembly 300 includes a first connecting piece 310 and a second connecting piece 320. The first connecting piece 310 is connected to the base 100, the second connecting piece 320 is fixed to the first bracket 210 or the second bracket 220, and the first connecting piece 310 and the second connecting piece 320 are connected; the sensor 400 is arranged on the base 100 and is used to receive the wave signal during the rotation of the display screen relative to the base 100; the data processing device is used to receive and process the wave signal transmitted by the sensor 400. Thus, the above-mentioned abnormal sound detection device for the display screen can simulate the opening and closing process of the display screen after being assembled into a complete machine through the rotation of the bracket assembly relative to the base. The sensor can receive the wave signal during the rotation of the display screen relative to the base, and whether the display screen makes abnormal sounds during the rotation can be judged through the characteristics of the wave signal; this abnormal sound detection device for the display screen does not need to assemble the display screen into a complete machine, and only single-display screen detection is adopted, which can avoid the risk of abnormal sounds of the display screen in advance, and is convenient for specifically finding the source of abnormal sounds, which is beneficial to improving the user experience effect.

[0033] According to some embodiments of the present invention, referring to Figure 1 , the detection device includes at least two connecting assemblies 300. One end of the first bracket 210 and one end of the second bracket 220 are respectively connected to the base 100 through the connecting assemblies 300. The connecting assembly 300 connected to the first bracket 210 and the connecting assembly 300 connected to the second bracket 220 are respectively located at both ends of one side of the base 100. The connection line between the first bracket 210 and at least two connecting assemblies 300 is substantially perpendicular, the connection line between the second bracket 220 and at least two connecting assemblies 300 is substantially perpendicular, and the first bracket 210 and the second bracket 220 are arranged in parallel. According to some specific embodiments of the present invention, referring to Figure 1, one end of the first bracket 210 and one end of the second bracket 220 are respectively connected to the base 100 through a connecting component 300. The connecting component 300 is located at both ends of one side of the base 100. The first bracket 210 is substantially perpendicular to the line connecting the two connecting components 300, and the second bracket 220 is substantially perpendicular to the line connecting the two connecting components 300. The first bracket 210 and the second bracket 220 are arranged in parallel. The third bracket 230 is arranged between the first bracket 210 and the second bracket 220 and connects the first bracket 210 and the second bracket 220. Thus, it is beneficial to further improve the performance and structural stability of the detection device.

[0034] It should be noted that Figure 1 only shows the case where the first bracket and the second bracket are each connected to the base through a connecting component 300. Those skilled in the art can understand that the first bracket or the second bracket can also be connected to the base through two or more connecting components.

[0035] It should also be noted that the first bracket is substantially perpendicular to the line connecting the two connecting components, and the second bracket is substantially perpendicular to the line connecting the two connecting components, which means that during the assembly of the detection device, it is difficult to ensure that the first bracket and the second bracket are absolutely perpendicular to the line connecting the two connecting components. Therefore, as long as the first bracket and the second bracket are substantially perpendicular to the line connecting the two connecting components.

[0036] As Figure 1 shown, the first bracket, the second bracket, and the third bracket are all rod-shaped brackets. In this way, the structure of the bracket assembly is simple, and it is convenient for assembly and disassembly. In addition, as Figure 1 shown, the glue layer 500 is provided on part of the surfaces of the first bracket 210 and the second bracket 220, specifically on the surface facing the base 100 between the first bracket and the second bracket. In this way, the display screen is attached to the base, and the abnormal sound of the display screen monomer can be detected more accurately. The glue layer 500 can use easy-to-pull glue, which can not only fix the display screen on the bracket assembly, but also facilitate the removal of the display screen from the bracket assembly after the detection is completed.

[0037] According to an embodiment of the present invention, the bracket assembly 300 can rotate 0 to 360 degrees relative to the base 100. Thus, the detection device can be applied to the abnormal sound detection of simulating different opening and closing degrees of the display screen. If the maximum opening and closing angle of the display screen during actual application after being assembled into a complete machine is 135 degrees, then when performing the abnormal sound detection on the display screen monomer, the bracket assembly can be rotated relative to the base from 0 degrees to 135 degrees or an opening and closing angle slightly greater than 135 degrees, such as 150 degrees.

[0038] The principle of the detection device proposed by the present invention for detecting the abnormal sound of the display screen will be described in detail below: Taking the setting of two third brackets 230 as an example, as Figure 1As shown, a connecting component 300 with a torque value of N is selected, so that the external force F required for the bracket component 200 in the detection device to rotate relative to the base 100 is consistent with the magnitude of the force applied during the opening and closing of the notebook, and the opening and closing process of the notebook under the action of the external force is simulated (the bracket component is rotated relative to the base from 0 degrees to a preset angle, and the preset angle is not less than the maximum opening and closing angle of the display screen during actual use); the heights A and B of the two third brackets are adjusted to simulate the strength of the display screen casings made of different materials. F is the force that causes the first bracket and the second bracket to rotate relative to the base, N is the force required for the connecting component to twist, H is the locking height of the connecting component, F1 is the force received when the height of the third bracket is A, and F2 is the force received when the height of the third bracket is B. Among them, F1 and F2 are internal forces, and F is an external force. When the force F is applied to the first bracket and / or the second bracket to cause the first bracket and the second bracket to rotate relative to the base,

[0039] F1 = (N * H - F2 * B) / A;

[0040] F2 = (N * H - F1 * A) / B;

[0041] As can be seen from the above formula, when the heights A and B of the two third brackets 230 are larger (i.e., when the two third brackets 230 are arranged close to the tops of the first bracket 210 and the second bracket 220), the forces F1 and F2 received by the two third brackets 230 are smaller. At this time, the deformation amount of the third bracket 230 due to force is smaller, which is suitable for simulating the opening and closing state of a metal or other high-strength display housing; when the heights A and B of the two third brackets 230 are smaller (i.e., when the two third brackets 230 are arranged close to the bottoms of the first bracket 210 and the second bracket 220), the forces F1 and F2 received by the two third brackets 230 are larger. At this time, the deformation amount of the third bracket 230 due to force is larger, which is suitable for simulating the opening and closing state of a plastic or other lower-strength display housing. By adjusting the heights A and B of the two third brackets 230, the force and deformation amount of the third bracket 230 can be controlled, which is used to simulate the opening and closing deformation of display screens of different materials for abnormal sound detection. After the detection device is stressed, during the process that the bracket assembly 200 rotates relative to the base 100 with the connecting assembly 300 as the center, the sensor 400 is used to collect the wave signal of the abnormal sound of the display screen. The data processing device receives and processes the wave signal transmitted by the sensor, and judges whether there is an abnormal sound and the degree of the abnormal sound according to the characteristics of the wave signal. According to an embodiment of the present invention, the sensor can be an acoustic wave sensor or a laser sensor. Taking the acoustic wave sensor as an example, during the process of using this device to simulate the opening and closing of the display screen, the sensor can receive the acoustic wave signal. After transmitting the acoustic wave signal to the data processing device, the data processing device can process the acoustic wave signal, and it can be judged whether there is an abnormal sound during the rotation of the display screen relative to the base through characteristics such as the amplitude, frequency, and waveform of the acoustic wave. In addition, the force and deformation of the third bracket can also be adjusted by adjusting the material of the third bracket. If a third bracket with a higher strength is selected, the deformation amount of the third bracket due to force is smaller, while if a third bracket with a relatively lower strength is selected, the deformation amount of the third bracket due to force is larger. Of course, during the test process, the material and height of the third bracket can be adjusted according to actual needs to realize the abnormal sound detection of the opening and closing process of display housings of different materials. The detection device can be adjusted by adjusting the distance between the two connecting components to be applicable to the abnormal sound detection of display screens of various sizes and models of notebook computers, and can directly simulate the opening and closing process of the notebook at the panel factory. At the same time, the abnormal sound degree of the display unit is quantified through the wave signal of the abnormal sound, and an abnormal sound standard for the display unit is established.

[0042] According to an embodiment of the present invention, referring to Figure 1 and Figure 2 , the connecting assembly 300 can be a hinge. Thus, the rotation of the bracket assembly relative to the base can be realized through the hinge, which is more conducive to testing whether there is an abnormal sound during the rotation of the display screen relative to the base.

[0043] The first connecting member 310 and the base 100 can be connected in different ways, which will be described below through embodiments of the present invention:

[0044] According to some embodiments of the present invention, referring to Figures 2 to 4 , the base 100 has a first fixing hole 110, and the first connecting member 310 has a first locking hole 311. A screw 600 is screwed into the first fixing hole 110 and the first locking hole 311, so that the first connecting member 310 is fixedly arranged on the base 100. According to some specific embodiments of the present invention, referring to Figure 4 , multiple first fixing holes 110 can be arranged on the base 100. Thus, the distance between the connecting components 300 connected to the first bracket 210 and the second bracket 220 can be adjusted by fixing the first connecting member on the position of the base to adapt to the abnormal sound detection of display screens of different sizes. For example, the first bracket 210 and the second bracket 220 can be respectively connected to the base through a connecting component. In this case, the distance between the two first connecting members 310 can be adjusted by fixing one first connecting member 310 and moving the other first connecting member 310, or the distance between the two first connecting members 310 can be adjusted by moving the two first connecting members 310 respectively. Those skilled in the art should understand that when the first bracket or the second bracket is connected to the base through two or more connecting components, the distance between the first bracket and the second bracket can be adjusted by fixing the connecting component connected to the first bracket and moving the connecting component connected to the second bracket, or by moving the connecting components connected to the first bracket and the second bracket respectively, so as to adapt to the abnormal sound detection of display screens of different sizes.

[0045] According to some other embodiments of the present invention, referring to Figure 5 and Figure 6 , the base 100 has a first sliding rail 120, and the first connecting member 310 has a first locking hole 311. A screw 600 is screwed into the first sliding rail 120 and the first locking hole 311 and fixed with a nut 700, so that the first connecting member 310 is fixedly arranged on the base 100. As can be seen from Figure 6 , the first sliding rail 120 has a certain length. Moving the screw 600 in the first sliding rail 120 can drive the first connecting member 310 to move, so that the distance between the connecting component connected to the first bracket and the connecting component connected to the second bracket changes. After moving the first connecting member 310 to a suitable position, the first connecting member 310 can be fixed on the base 100 with a nut 700. This way can reduce the disassembly and connection of the first connecting member. Among them, there is no special requirement for the specific structure of the first sliding rail, and those skilled in the art can set it flexibly. In some embodiments, such as Figure 5 and 6As shown, the first slide rail can be a strip-shaped through hole formed in the base 100 and passing through the base 100. In this way, there is no need to additionally set a slide rail track, thus simplifying the structure of the detection device.

[0046] According to some other embodiments of the present invention, referring to Figure 6 and Figure 7 , the base 100 has a first slide rail 120 and a first sliding member 140. The first sliding member 140 can move along the first slide rail 120. The first connecting member 310 is connected to the first sliding member 140. Thus, a sliding connection between the first connecting member and the base can be achieved. The connection manner between the first connecting member and the first sliding member is not specifically limited as long as the connection between the first connecting member and the first sliding member can be realized. According to some specific embodiments of the present invention, as Figure 7 shown, the first connecting member 310 has a first locking hole 311. One side of the first sliding member 140 has a threaded hole. The connection between the first connecting member and the first sliding member can be realized by screwing a screw 600 into the first locking hole 311 and the threaded hole of the first sliding member. The specific shape of the first sliding member is not particularly limited as long as the first sliding member can move in the first slide rail under a certain acting force and can stably stop moving in the first slide rail when the acting force is no longer applied. In this solution, the first slide rail can be a strip-shaped through hole formed in the base 100 and passing through the base 100 or a groove formed in the base. Those skilled in the art can set it flexibly according to the actual situation.

[0047] According to an embodiment of the present invention, referring to Figure 2 and Figure 8 , both the first bracket 210 and the second bracket 220 have second fixing holes 240 ( Figure 8 only the structure of the second fixing hole is shown by taking the first bracket as an example in

[0048] ). The second connecting member 320 has a second locking hole 321. By screwing a screw into the second fixing hole 240 and the second locking hole 321, the second connecting member 320 is fixedly connected to the first bracket 210 and the second bracket 220.

[0049] According to some embodiments of the present invention, referring to Figure 8 and Figure 9 , both the first bracket 210 and the second bracket 220 have first threaded holes 250 (the first bracket 210 and the second bracket 220 have the same structure, Figure 8(Only the first threaded hole is shown by the first bracket 210), the third bracket 230 has a second threaded hole 260. A screw is screwed into the first threaded hole 250 and the second threaded hole 260, so that the third bracket 230 is fixedly connected to the first bracket 210 and the second bracket 220. As Figure 8 shown, the first threaded holes 250 can be provided at different heights of the first bracket, that is, one or a group of first threaded holes can be provided at intervals of a certain distance L, so as to fix the third bracket 230 at different heights, and it is convenient to adjust the height of the third bracket. According to some embodiments of the present invention, as Figure 8 shown, two first threaded holes 250 can be taken as a group, and the distance L between each group of first threaded holes and another adjacent group of first threaded holes can be set according to actual needs. For example, L can be 10 mm.

[0050] According to some other embodiments of the present invention, referring to Figure 9 and Figure 10 , both the first bracket 210 and the second bracket 220 have a second slide rail 270 (the structures of the first bracket 210 and the second bracket 220 are the same, Figure 10 only the structure of the second slide rail is shown by the first bracket), the third bracket 230 has a second threaded hole 260. A screw is screwed into the second slide rail 270 and the second threaded hole 260 and fixed with a nut, so that the third bracket 230 is fixedly connected to the first bracket 210 and the second bracket 220. As can be seen from Figure 10 , the second slide rail 270 has a certain length, and the third bracket can be fixed at different positions on the second slide rail through screws and nuts to realize the height adjustment of the third bracket. This way can also reduce the disassembly and connection of the third bracket. Among them, there is no special requirement for the specific structure of the second slide rail, and those skilled in the art can set it flexibly. In some embodiments, as Figure 10 shown, the second slide rail can be a strip-shaped through hole formed in the first bracket and penetrating the first bracket, and a strip-shaped through hole formed in the second bracket and penetrating the second bracket. In this way, there is no need to additionally set a slide rail track, thereby simplifying the structure of the detection device.

[0051] According to still other embodiments of the present invention, both the first bracket and the second bracket are provided with a second slide rail and a second slider. Wherein, the second slider is movable along the second slide rail, and the third bracket is connected to the second slider. Thus, the third bracket can be slidably connected to the first bracket or the second bracket. When it is necessary to adjust the height of the third bracket, only by moving the position of the second slider in the second slide rail can the third bracket be driven to move accordingly. The specific manner of connecting the third bracket to the second slider is not limited either. For example, it can be connected by threads. The specific structures of the second slide rail and the second slider are not particularly limited either, as long as the second slider can move in the second slide rail under the application of a certain force and drive the third bracket to move, and when the application of the force stops, the second slider can be stabilized in the second slide rail and no longer move.

[0052] According to an embodiment of the present invention, referring to Figure 10 , the first bracket 210 and the second bracket 220 may further be provided with height scales 280 ( Figure 10 only the height scale is shown on the first bracket in

[0053] The sensor can also be arranged on the base in different ways, which will be described below according to the embodiments of the present invention:

[0054] According to some embodiments of the present invention, the sensor 400 can be fixedly arranged on the base 100. According to some specific embodiments of the present invention, the sensor 400 can be arranged on the base 100 by means of adhesion. Referring to Figure 11 , the sensor 400 can be fixed on the base 100 by glue 10 (such as double-sided tape), so as to realize the firm bonding of the sensor on the base. When the bracket assembly rotates a large angle relative to the base, the sensor can also be stably fixed on the base and receive wave signals. According to still other specific embodiments of the present invention, the sensor 400 can also be fixed on the base by means of threaded connection (i.e., by screws).

[0055] According to still other embodiments of the present invention, referring to Figure 12 , a third slide rail 130 can be arranged on the base 100. The sensor 400 has a through hole 410. The detection device further includes a connecting member 800. The connecting member 800 includes a third slider 820 and a connecting rod 810 fixedly connected to the third slider 820. The third slider 820 is arranged in the third slide rail 130. The connecting rod 810 passes through the through hole 410, and one end of the connecting rod 810 away from the third slider 820 has threads ( Figure 12The thread structure is not shown in the figure. The sensor 400 is fixed on the base 100 by screwing a nut 700 onto the thread of the connecting rod 810. The third slide rail 130 has a certain length. The sensor 400 can be slidably arranged on the base 100 through a connecting member 800 and a nut 700. When the position of the sensor 400 needs to be adjusted, moving the position of the connecting member 800 accordingly can drive the sensor 400 to move on the base 100. Among them, there are no special requirements for the specific structure of the third slide rail. Those skilled in the art can set it flexibly. In some embodiments, as Figure 12 shown, the third slide rail can be a groove formed on the base 100. In this way, there is no need to additionally set a slide rail track, thereby simplifying the structure of the detection device. According to some embodiments of the present invention, the detection device includes at least two connecting components 300, and the sensor 400 can be located on the line connecting at least two connecting components 300. Thus, the reception of the wave signal during the rotation of the display screen relative to the base can be better realized.

[0056] In the present invention, there are no special limitations on the specific materials of the base 100, the bracket assembly 200, the connecting component 300, etc. According to some embodiments of the present invention, the materials of the base 100, the bracket assembly 200, and the connecting component 300 can all be metal materials or alloys, such as aluminum alloy, etc. Of course, those skilled in the art can also select and set according to actual needs as long as the structures such as the base, the bracket assembly, and the connecting component can have good mechanical properties.

[0057] According to some embodiments of the present invention, the base 100 can be a regular rectangle, as Figure 1 and Figure 14 shown; according to some other embodiments of the present invention, the base 100 can also be the shape shown in Figure 13 ; of course, the base 100 can also be other shapes as long as it can play a role in stabilizing the detection device.

[0058] Generally speaking, the abnormal sound detection device for the display screen proposed by the present invention has at least the following advantages: The detection device can simulate the opening and closing force conditions after the display screen is assembled into the whole machine, can detect the abnormal sound of the display screen monomer, and thus effectively avoid the abnormal sound problem after the display screen is assembled. The source of the abnormal sound (during the opening and closing process) can be accurately determined through the characteristics of the wave signal, and then improved to prevent complaints from customers about the abnormal sound during opening and closing caused by the display screen after assembly; by adjusting the distance between the connecting components, the opening and closing states of laptops of different sizes can be achieved; through the adjustment of the material and height of the third bracket, the opening and closing processes of display screens (display screen casings) made of different materials can be simulated, and the abnormal sound detection of display screens made of different materials can be realized; the deformation abnormal sound condition of the display screen after being stressed at the system end can be quantified through this detection device, and the abnormal sound state of the display screen monomer can be determined. This device can be used as a test means for establishing the abnormal sound standard of the monomer to fill the blank of the abnormal sound evaluation of the display screen monomer.

[0059] In another aspect of the present invention, the present invention proposes a method for detecting the abnormal sound of a laptop display screen by using the above-mentioned abnormal sound detection device for the display screen. The method includes the following steps:

[0060] S100: Fix the laptop display screen on the bracket assembly of the detection device.

[0061] First, refer to Figure 14 , fix the laptop display screen 20 on the bracket assembly of the detection device, and bond the laptop display screen 20 to the first bracket 210 and the second bracket 220 through the adhesive layer 500 to fix the laptop display screen 20.

[0062] It should be noted that taking the 17.3-inch laptop display screen as an example, when fixing the laptop display screen on the bracket assembly of the detection device, it is necessary to first adjust the distance between the connecting component connected to the first bracket and the connecting component connected to the second bracket to adapt to the size of the display screen, and determine the material and fixed height of the third bracket according to the material and strength of the laptop display screen casing.

[0063] S200: Electrically connect the sensor of the detection device to the data processing device.

[0064] In this step, electrically connect the sensor 400 of the detection device to the data processing device. According to the embodiment of the present invention, the sensor 400 can be electrically connected to the data processing device through a wire.

[0065] S300: Apply an external force to the bracket assembly to rotate the bracket assembly relative to the base of the detection device, gradually increasing the angle between the bracket assembly and the base of the detection device to a preset angle, or gradually decreasing the angle between the bracket assembly and the base from the preset angle to 0 degrees, where the preset angle is not less than the maximum opening and closing angle when the laptop display screen is in use.

[0066] Fix the laptop display screen 20 on the bracket assembly 200. After the sensor 400 is electrically connected to the data processing device, apply an external force F to the bracket assembly 200 to rotate the bracket assembly 200 relative to the base 100, as Figure 1 shown, gradually increasing the angle C between the bracket assembly and the base 100 of the detection device to a preset angle, or gradually decreasing the angle C between the bracket assembly and the base 100 of the detection device from the preset angle to 0 degrees, where the preset angle is not less than the maximum opening and closing angle when the laptop display screen is in use. During this test process, the sensor will receive the wave signal emitted during the rotation of the display screen relative to the base, and then process it through the data processing device, and then it can be determined whether there is abnormal noise during the rotation of the display screen relative to the base according to the processed data.

[0067] The sensor can be an acoustic wave sensor or a laser sensor, and it is necessary to conduct the test in a quiet environment to make the detection result more accurate.

[0068] S400: Process the wave signal measured by the sensor through the data processing device to determine whether there is abnormal noise during the rotation of the laptop display screen relative to the base.

[0069] As mentioned above, the sensor can be an acoustic wave sensor or a laser sensor. The following takes the acoustic wave sensor as an example for illustration: The acoustic wave sensor receives the acoustic wave emitted during the rotation of the laptop display screen relative to the base and conducts the acoustic wave to the data processing device. The data processing device compares the waveform, amplitude, and frequency of the acoustic wave (wave signal) measured by the acoustic wave sensor with the preset waveform, preset amplitude, and preset frequency to determine whether there is abnormal noise in the acoustic wave. Taking the amplitude as an example, the larger the amplitude of the acoustic wave, the greater the intensity of the sound. When the amplitude of the acoustic wave exceeds the preset amplitude, it can be considered that there is abnormal noise in this acoustic wave, and the source can be found according to the acoustic wave corresponding to this part of the abnormal noise, and the corresponding part of the display screen can be improved. The preset amplitude can be set according to the amplitude of the acoustic wave that does not have abnormal noise during the opening and closing process after the display screen is assembled into the whole machine. Similarly, the preset waveform and preset frequency can also be set according to the waveform and frequency range of the acoustic wave that does not have abnormal noise during the opening and closing process after the display screen is assembled into the whole machine, and are used to compare with the waveform and frequency of the acoustic wave measured by the acoustic wave sensor to determine whether there is abnormal noise.

[0070] During the actual testing process, the strength of the display screen housing made of different materials can be simulated by adjusting the height of the third bracket in the detection device: setting the third bracket close to the tops of the first bracket and the second bracket can be used to simulate the opening and closing states of a display screen housing made of metal or other materials with relatively high strength; setting the third bracket close to the bottoms of the first bracket and the second bracket can be used to simulate the opening and closing states of a display screen housing made of plastic or other materials with relatively low strength. In addition, the material of the third bracket can be selected according to the strength of the display screen housing. Of course, the material and height of the third bracket can also be adjusted according to actual needs to achieve the detection of abnormal noises during the opening and closing processes of display screen housings made of different materials. For the detection of abnormal noises in display screens of different sizes and models, the distance between the first bracket and the second bracket can be adjusted to adapt to display screens of different sizes.

[0071] The above method can be used to detect abnormal noises in a single display screen, and the source of the abnormal noise can be determined according to the characteristics of the measured wave signal, which is beneficial to avoiding the problem of abnormal noises in the display screen before assembling the whole machine; using this method, it can be detected whether there are abnormal noises in display screens (housings) of different sizes, models and materials, and an evaluation standard for abnormal noises in a single display screen can also be established through subsequent research to fill the blank of the evaluation of abnormal noises in a single display screen.

[0072] The terms "first", "second" and "third" in the text are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" and "third" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0073] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "another embodiment", "yet another embodiment", "some embodiments" or "other embodiments" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0074] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display abnormal sound detection device, characterized in that, it includes: a base; a bracket assembly, the bracket assembly includes a first bracket, a second bracket and at least two third brackets arranged at intervals, the first bracket and the second bracket are symmetrically arranged for carrying a display screen, the third brackets connect the first bracket and the second bracket for simulating the strength of the display screen casing, and the bracket assembly can rotate relative to the base; an adhesive layer, the adhesive layer is arranged on partial surfaces of the first bracket and the second bracket, and the adhesive layer is used for fixing the display screen to the bracket assembly; at least two connecting components, the connecting components include a first connecting piece and a second connecting piece, the first connecting piece is connected to the base, the second connecting piece is fixed to the first bracket or the second bracket, and the first connecting piece and the second connecting piece are connected and arranged; a sensor, the sensor is arranged on the base for receiving wave signals during the rotation of the display screen relative to the base; a data processing device, the data processing device is used for receiving and processing the wave signals transmitted by the sensor.

2. The detection device according to claim 1, characterized in that, the connecting component is a hinge, one end of the first bracket and one end of the second bracket are respectively connected to the base through the connecting component, the first bracket and the second bracket are arranged in parallel and are both substantially perpendicular to the connection line of at least two of the connecting components.

3. The detection device according to claim 1, characterized in that, the connection mode of the first connecting piece and the base is: the base has a first fixing hole, the first connecting piece has a first locking hole, and screws are screwed into the first fixing hole and the first locking hole so that the first connecting piece is fixedly arranged on the base; or, the base has a first sliding rail, the first connecting piece has the first locking hole, and screws are screwed into the first sliding rail and the first locking hole and fixed with nuts so that the first connecting piece is fixedly arranged on the base; or, the base has the first sliding rail and a first sliding member, the first sliding member can move along the first sliding rail, and the first connecting piece is connected to the first sliding member.

4. The detection device according to claim 1, characterized in that, both the first bracket and the second bracket have second fixing holes, the second connecting piece has second locking holes, and screws are screwed into the second fixing holes and the second locking holes so that the second connecting piece is fixedly connected to the first bracket and the second bracket.

5. The detection device according to claim 1, characterized in that, the connection mode of the third bracket and the first bracket and the second bracket is: both the first bracket and the second bracket have first threaded holes, the third bracket has second threaded holes, and screws are screwed into the first threaded holes and the second threaded holes so that the third bracket is fixedly connected to the first bracket and the second bracket; or, Both the first bracket and the second bracket are provided with second sliding rails, and the third bracket is provided with the second threaded holes. A screw is screwed into the second sliding rails and the second threaded holes and fixed with a nut, so that the third bracket is fixedly connected to the first bracket and the second bracket; or, Both the first bracket and the second bracket are provided with the second sliding rails and second sliding members. The second sliding members are movable along the second sliding rails, and the third bracket is connected to the second sliding members.

6. The detection device according to any one of claims 1 to 5, characterized in that, The sensor is arranged on the base in the following manner: The sensor is fixedly arranged on the base by glue or screws; or, A third sliding rail is arranged on the base, and the sensor has a through hole. The detection device further includes a connecting member. The connecting member includes a third sliding member and a connecting rod fixedly connected to the third sliding member. The third sliding member is arranged in the third sliding rail, the connecting rod is inserted into the through hole, and one end of the connecting rod away from the third sliding member has a thread. By screwing a nut at the thread of the connecting rod, the sensor is arranged on the base.

7. The detection device according to any one of claims 1 to 5, characterized in that, The first bracket and the second bracket are provided with height scales.

8. The detection device according to any one of claims 1 to 5, characterized in that, The bracket assembly can rotate 0 to 360 degrees relative to the base.

9. The detection device according to any one of claims 1 to 5, characterized in that, The sensor is an acoustic wave sensor or a laser sensor, and the sensor is located on the line connecting at least two of the connecting components.

10. A method for detecting abnormal sound of a notebook computer display screen by using the detection device according to any one of claims 1 to 9, characterized in that, comprising: Fixing the notebook computer display screen on the bracket assembly of the detection device; Electrically connecting the sensor of the detection device to a data processing device; Applying an external force to the bracket assembly to make the bracket assembly rotate relative to the base of the detection device, so that the angle between the bracket assembly and the base gradually increases to a preset angle, or the angle between the bracket assembly and the base gradually decreases from the preset angle to 0 degree, and the preset angle is not less than the maximum opening and closing angle when the notebook computer display screen is applied; Processing the wave signal measured by the sensor through the data processing device to determine whether there is abnormal sound during the rotation of the notebook computer display screen relative to the base.

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