CN111538176B - Adhesive force test fixture and test method thereof - Google Patents
Adhesive force test fixture and test method thereof Download PDFInfo
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- CN111538176B CN111538176B CN202010449221.2A CN202010449221A CN111538176B CN 111538176 B CN111538176 B CN 111538176B CN 202010449221 A CN202010449221 A CN 202010449221A CN 111538176 B CN111538176 B CN 111538176B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
An adhesive force test fixture, comprising: the device comprises a base, a connecting rod clamp, a pressing plate, a laser range finder and a thimble; the base is arranged at the lowest end; the connecting rod clamp protrudes out of one side of the base for placing the liquid crystal display panel and is connected with the pressing plate; the pressing plate is arranged on the connecting rod clamp, vertically intersects with the connecting rod clamp, is parallel to the base and is matched with the base to clamp the liquid crystal display panel; the laser range finder is bound with the thimble and used for measuring the distance value between the frame glue and the pressing plate; the thimble is perpendicular to one side of the base for placing the liquid crystal display panel; the beneficial effects are as follows: according to the adhesion test fixture, the laser range finders are arranged, so that the test points are always consistent when the adhesion of the same substrate is tested, and the accuracy of adhesion test is improved; secondly, grooves and connecting rod clamps are further arranged on the base, and the adhesive force of the panel frame glue with various sizes can be measured by moving the connecting rod clamps along the grooves.
Description
Technical Field
The present disclosure relates to the field of display, and more particularly, to an adhesive force testing jig and a testing method thereof.
Background
With the development of display technology, flat panel display devices such as liquid crystal displays (Liquid Crystal Display, LCDs) have been widely used in various consumer electronic products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and have become the mainstream of display devices, because of their advantages such as high image quality, power saving, thin body, and wide application range.
In a liquid crystal display, a main function of a frame adhesive is to combine and fix a color film substrate and an array substrate of a liquid crystal display panel by using self-adhesion, so as to protect a liquid crystal layer from being contacted with external water vapor, impurities and the like and prevent outflow of liquid crystal, and therefore, the adhesion between the liquid crystal layer and the color film substrate and the adhesion between the liquid crystal layer and the array substrate are very important.
At present, the adhesion test of the liquid crystal display panel is mainly performed by a tensile tester by using a thimble method, but in a specific test process, adhesion test results at different positions of the same substrate are different, and there is a large difference. The consistency of the puncture points of multiple tests cannot be ensured by the existing test fixture.
Therefore, in the existing technology of the testing fixture and the testing method for the frame adhesive force of the liquid crystal display panel, the problem of inaccurate testing of the adhesive force caused by unfixed testing points in the testing process of the frame adhesive force of the liquid crystal display panel exists, and improvement is urgently needed.
Disclosure of Invention
The application relates to an adhesive force testing jig and a testing method thereof, which are used for solving the problem of inaccurate adhesive force testing caused by unfixed testing point positions in the adhesive force testing process of a frame of a liquid crystal display panel in the prior art.
In order to solve the problems, the technical scheme provided by the application is as follows:
the application provides an adhesion test fixture includes: a base, a connecting rod clamp, a pressing plate, a laser range finder and a thimble; wherein, the liquid crystal display device comprises a liquid crystal display device,
the base is arranged at the lowest end and is used for placing the liquid crystal display panel;
the connecting rod clamp protrudes out of one side of the base for placing the liquid crystal display panel and is connected with the pressing plate;
the pressing plate is arranged on the connecting rod clamp, vertically intersects with the connecting rod clamp, is parallel to the base and is matched with the base to clamp the liquid crystal display panel;
the laser range finder is bound with the thimble and used for measuring the distance value between the frame glue and the pressing plate;
the thimble is perpendicular to one side of the base for placing the liquid crystal display panel and can reciprocate up and down along the direction of the connecting rod clamp.
According to an embodiment provided by the application, the pressing plate is connected with the connecting rod clamp through a sliding rail.
According to an embodiment provided by the application, a groove is formed in the base, and the connecting rod clamp moves back and forth on the base along the groove.
According to an embodiment provided herein, the length of the groove is smaller than the length of the base diagonal.
According to an embodiment provided in the application, the groove and the sliding rail have a certain preset length.
According to an embodiment provided in the present application, the preset lengths of the groove and the sliding rail are: 1-20cm.
According to an embodiment provided by the application, the length of the pressing plate is smaller than or equal to the length of any side edge of the base.
According to an embodiment provided in the present application, the base includes seven sides, respectively: the first side, the second side, the third side, the fourth side, the fifth side, the sixth side, and the seventh side.
The application also provides an adhesive force testing method, which comprises the adhesive force testing jig, and the method comprises the following steps:
s10, providing an adhesive force test fixture, a color film substrate, an array substrate and frame glue;
s20, firstly, bonding the color film substrate and the array substrate together by using the frame glue to form a liquid crystal display panel;
s30, placing the liquid crystal display panel into the adhesive force testing jig, enabling the array substrate in the liquid crystal display panel to be attached to the base, and enabling one corner of the liquid crystal display panel to protrude out of a seventh side surface of the base;
s40, measuring the distance between one corner of the color film substrate protruding out of the seventh side edge of the base and the connecting rod clamp by using a laser range finder;
s50, if the distance value measured in the step S40 is not in the preset range, continuously adjusting the distance between the liquid crystal display panel and the connecting rod clamp, so that the distance value between the corner of the color film substrate protruding out of the seventh side edge of the base and the connecting rod clamp reaches the preset range;
s60, if the distance value measured in the step S40 is within the preset range, the distance between the liquid crystal display panel and the connecting rod clamp is not required to be continuously adjusted;
s70, fixing the liquid crystal display panel between the pressing plate and the base;
and S80, pressing the ejector pin on the array substrate until the color film substrate is separated from the array substrate, and recording the force used for pressing the ejector pin at the moment.
According to an embodiment provided herein, step "S30" includes:
s301, pushing the pressing plate along a sliding rail of the connecting rod clamp to deviate from the base, so that the distance value between the pressing plate and the base is larger than the thickness of the liquid crystal display panel;
s302, placing the liquid crystal display panel between the pressing plate and the base, so that one side of the liquid crystal display panel is tightly attached to the connecting rod clamp, and one corner of the liquid crystal display panel protrudes out of the seventh side of the base;
s303, pushing the pressing plate along the sliding rail of the connecting rod clamp to a direction close to the base, so that the liquid crystal display panel is clamped between the pressing plate and the base.
Compared with the prior art, the adhesive force test fixture and the test method thereof have the following beneficial effects:
1. according to the adhesion test fixture, the laser range finders are arranged, so that the test points are always consistent when the adhesion of the same substrate is tested, and the accuracy of adhesion test is improved;
2. according to the adhesive force testing jig, the groove and the connecting rod clamp are further arranged on the base, the connecting rod clamp is moved along the groove, the adhesive force of the frame adhesive of the liquid crystal display panel with various sizes can be measured, and the application range is wide;
3. the application provides a follow power test fixture and test method thereof, be provided with the slide rail on the connecting rod anchor clamps, the pressboard can be followed the slide rail reciprocates, can the liquid crystal display panel of multiple different thickness of centre gripping and be convenient for more realize pressing from both sides tightly and the action of relaxing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an adhesive force testing jig according to an embodiment of the present application.
FIG. 2 is a graph showing a first stress distribution of the adhesion test according to the embodiment of the present application.
FIG. 3 is a graph showing a second stress distribution of the adhesion test according to the embodiment of the present application
Fig. 4 is a schematic structural diagram of a base of an adhesion testing fixture according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a connecting rod fixture of an adhesive force testing fixture according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an adhesive force testing jig pressing plate according to an embodiment of the present application.
Fig. 7 is a flow chart of a method for testing adhesion according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.
The application provides an adhesive force test fixture and a test method thereof, and particularly relates to fig. 1-7.
Referring to fig. 1, a schematic structure diagram 100 of an adhesion testing jig according to an embodiment of the present application is provided. Comprising the following steps: base 1, connecting rod anchor clamps 2, pressfitting board 3, thimble 4 and laser range finder 5.
Referring to FIG. 2, a first stress profile 200 of a follow-up force test is provided in an embodiment of the present application. The frame glue 63 is adhered between the color film substrate 61 and the array substrate 62, and the left edge of the liquid crystal display panel 6 is blocked by the connecting rod clamp 2. The length of the array substrate 63 is greater than that of the color film substrate 61, and the ejector pin 4 acts on the array substrate 62 to perform the adhesive force test of the frame adhesive 63. When the ejector pin 4 acts on the array substrate 62, a tensile test value F1 is generated, and when the tensile test value F1 reaches a state where the color film substrate 61 and the array substrate 62 can be separated, the adhesive force of the frame adhesive 63 can be calculated. The following formula is adopted:
f2, the adhesive force of the frame adhesive;
f1, which is a value of force acting on the thimble to separate the color film substrate from the array substrate;
a1, the vertical distance between the frame glue 63 and the connecting rod clamp 2;
c1, the vertical distance between the thimble and the connecting rod clamp is the vertical distance;
it can be seen that the adhesion force of the frame glue 63 is also related to the vertical distance c1 between the ejector pin 4 and the link fixture 2 and the vertical distance a1 between the frame glue 63 and the link fixture 2, but if the values of c1 and a1 are measured directly and manually, the measurement is troublesome and the error is large.
Referring to fig. 3, a second stress distribution diagram 300 of the adhesion test fixture according to the embodiment of the present application is shown. The device comprises the connecting rod clamp 2, the color film substrate 61, the array substrate 62, the frame glue 63 and the thimble 4 in fig. 2, and also comprises a laser range finder 5, wherein the laser range finder 5 is bound with the thimble 4. Since the thimble 4 and the laser rangefinder 5 are tied together, the vertical distance b1 between the thimble 4 and the laser rangefinder 5 is fixed and known. Since the vertical distance between the frame glue 63 and the right edge of the color film substrate 61 is far smaller than the vertical distance between the right edge of the color film substrate 62 and the ejector pin 4, the vertical distance between the frame glue 63 and the right edge of the color film substrate 61 may be approximately equal to 0, that is, the vertical distance between the frame glue 63 and the ejector pin 4 is equal to the vertical distance between the right edge of the color film substrate 61 and the ejector pin 4 is equal to b1; the vertical distance between the frame glue 63 and the connecting rod clamp 2 is equal to the vertical distance between the right edge of the color film substrate 61 and the connecting rod clamp 2 is equal to a1.
In an embodiment of the present application, the ejector pin 4 is fixedly connected with the laser rangefinder 5, when in measurement, the laser rangefinder 5 is aligned to the right edge of the color film substrate 61, and the whole formed by the laser rangefinder 5 and the ejector pin 4 is perpendicular to the connecting rod fixture 2, and the ejector pin 4 is deviated from the connecting rod fixture 2. And opening the laser range finder 5 to measure the vertical distance a1 between the right edge of the color film substrate 61 and the connecting rod clamp 2. Since the vertical distance b1 between the thimble 4 and the laser range finder 5 is known, the vertical distance c1 between the thimble 4 and the link clamp 2 can be calculated. Since the tensile force test value F1 acting on the ejector pin 4 is known, the adhesive force F2 of the frame adhesive 63 can be calculated.
Referring to fig. 4, a schematic structure 400 of a base of an adhesion testing fixture according to an embodiment of the present application is shown. The base 1 is a cuboid, comprising: a first side 11, a second side 12, a third side 13, a fourth side 14, a fifth side 15, a sixth side 16, a seventh side 17 and a groove 18. Wherein the first side 11 is opposite to the second side 12, the third side 13 is opposite to the fifth side 15, the fourth side 14 is opposite to the sixth side 16, the seventh side 17 passes through the third side 13 and the sixth side 16, and is formed by cutting a corner between the third side 13 and the sixth side 16 by a cuboid of the base 1, and the seventh side 17 may be a plane or a cambered surface, and is not limited to the plane shown in fig. 1 and fig. 4. The groove 18 is arranged on a central vertical plane of the seventh side 17, facing away from the base of the seventh side 17. The predetermined length of the groove 18 ranges from: 1-20cm. The adhesion force testing jig is mainly used for placing the liquid crystal display panel 6 when in operation, and one corner of the liquid crystal display panel 6 protrudes out of the seventh side surface 17 so as to facilitate measurement of the liquid crystal display panel 6. The groove 18 is designed such that the link clamp 2 disposed in the groove 18 can move back and forth along the groove 18, thereby measuring various liquid crystal display panels of different sizes.
Referring to fig. 5, a schematic structural diagram 500 of a connecting rod fixture of an adhesion testing fixture according to an embodiment of the present application is shown. The link clamp 2 includes: the first side 21, the second side 22, the third side 23, the fourth side 24, the fifth side 25 and the sixth side 26, the first side 21 is opposite to the third side 23, the second side 22 is opposite to the fourth side 24, the fifth side 25 is opposite to the sixth side 26, the first side 21 is provided with a sliding rail 211, the sliding rail 211 is recessed toward the third side 23 to form a T-shaped groove, the thickness of the sliding rail 211 is smaller than the width of the second side 22 or the fourth side 24, the length of the sliding rail 211 is smaller than the length of the first side 21 or the third side 23 of the connecting rod clamp 2, the width of the sliding rail 211 is smaller than the width of the first side 21 or the third side 23, a groove 212 is arranged in the sliding rail 211, and the opening of the channel 212 is parallel to the inner surface of the sliding rail 211 and recessed toward the third side 23. In one embodiment, the thickness of the groove 212 is smaller than or equal to the thickness of the sliding rail 211, the length of the groove 212 is smaller than the length of the sliding rail 211, the width of the groove 212 is smaller than the width of the sliding rail 211, and the preset length range of the sliding rail 211 is: 1-20cm. The grooves 212 cooperate with pins (not shown) to define the pressing plate 3 when the lcd panel 6 is fixed, so as to prevent the pressing plate 3 from moving upwards along the sliding rails 211 when the ejector pins 4 act on the array substrate 62, thereby affecting the test result of the adhesive force of the sealant 63. The second side 22 is further provided with a first clamping piece 221 and a second clamping piece 222, the first clamping piece 221 and the second clamping piece 222 are arranged in parallel, and the distance between the first clamping piece 221 and the second clamping piece 222 is equal to the thickness of the base 1; the fourth side 24 is provided with a third clamping piece 241 and a fourth clamping piece 242, the third clamping piece 241 and the fourth clamping piece 242 are arranged in parallel, and the distance between the third clamping piece 241 and the fourth clamping piece 242 is equal to the thickness of the base 1. The second clip 222, the fourth clip 242 and the sixth side 26 are disposed on the same horizontal plane. In operation, the connecting rod clamp 2 is disposed in the groove 18 of the base 1, and two sides of the connecting rod clamp 2 are respectively clamped at two ends of the first side 11 and the second side 12 of the base 1 by the first clamping piece 221, the second clamping piece 222, the third clamping piece 241 and the fourth clamping piece 242, so that the connecting rod clamp 2 can move back and forth on the base 1.
Referring to fig. 6, a schematic structural diagram 600 of a pressing plate of an adhesive force testing jig according to an embodiment of the present application is shown. The lamination plate 3 includes: a first side 31, a second side 32, a third side 33, a fourth side 34, a fifth side 35 and a sixth side 36, said first side 31 being opposite said second side 32, said third side 33 being opposite said fifth side 35, said fourth side 34 being opposite said sixth side 36. The sixth side 36 is further provided with a T-shaped structure 361, and the T-shaped structure 361 includes: a first end face 3611, a second end face 3612, a third end face 3613, a fourth end face 3614 (not shown), a fifth end face 3615, a sixth end face 3616, a seventh end face 3617, an eighth end face 3618 (not shown), and a ninth end face 3619. The first end face 3611 is opposite to the second end face 3612, the third end face 3613 is opposite to the ninth end face 3619, and is parallel to the third side face 33 and the fifth side face 35 of the lamination plate 3; the fourth end face 3614 and the eighth end face 3618 are located on the same horizontal plane and are parallel to the sixth end face 3616 and the sixth side face 36 of the lamination plate 3; the fifth end face 3615 is opposite the seventh end face 3617. The fifth end surface 3615 of the T-shaped structure 361 is attached to the left inner wall of the sliding rail 211, the seventh end surface 3617 is attached to the right inner wall of the sliding rail 211, the sixth end surface 3616 is attached to one surface of the sliding rail 211, which is close to the third side surface 23, and the T-shaped structure 361 is just matched with the T-shaped groove. The width of the first side 31 and the second side 32 should be greater than or equal to one half of the length of the groove 18 of the base 1 and less than the length of the groove 18 of the base 1. Therefore, when the ejector pins 4 act on the array substrate 62, the center of the lcd panel 6 is not completely covered by the pressing plate 3 due to the too short structure, so that the lcd panel 6 is bent, and the adhesion test result of the sealant 63 is prevented from being affected.
Referring to fig. 7, the present application further provides an adhesion testing method, including all the adhesion testing tools described above, the method includes the following steps: s10, providing an adhesive force test fixture, a color film substrate, an array substrate and frame glue; s20, firstly, bonding the color film substrate and the array substrate together by using the frame glue to form a liquid crystal display panel; s30, placing the liquid crystal display panel into the adhesive force testing jig, enabling the array substrate in the liquid crystal display panel to be attached to the base, and enabling one corner of the liquid crystal display panel to protrude out of a seventh side surface of the base; s40, measuring the distance between one corner of the color film substrate protruding out of the seventh side edge of the base and the connecting rod clamp by using a laser range finder; s50, if the distance value measured in the step S40 is not in the preset range, continuously adjusting the distance between the liquid crystal display panel and the connecting rod clamp, so that the distance value between the corner of the color film substrate protruding out of the seventh side edge of the base and the connecting rod clamp reaches the preset range; s60, if the distance value measured in the step S40 is within the preset range, the distance between the liquid crystal display panel and the connecting rod clamp is not required to be continuously adjusted; s70, fixing the liquid crystal display panel between the pressing plate and the base; and S80, pressing the ejector pin on the array substrate until the color film substrate is separated from the array substrate, and recording the force used for pressing the ejector pin at the moment. Wherein, the step S30 includes: s301, pushing the pressing plate along a sliding rail of the connecting rod clamp to deviate from the base, so that the distance value between the pressing plate and the base is larger than the thickness of the liquid crystal display panel; s302, placing the liquid crystal display panel between the pressing plate and the base, so that one side of the liquid crystal display panel is tightly attached to the connecting rod clamp, and one corner of the liquid crystal display panel protrudes out of the seventh side of the base; s303, pushing the pressing plate along the sliding rail of the connecting rod clamp to a direction close to the base, so that the liquid crystal display panel is clamped between the pressing plate and the base.
Compared with the prior art, the adhesive force test fixture and the test method thereof have the beneficial effects that: firstly, the adhesive force testing jig provided by the application is provided with the laser range finder, so that the testing points are always consistent when the adhesive force of the same substrate is tested, and the accuracy of adhesive force testing is improved; secondly, the adhesive force testing jig is further provided with the groove and the connecting rod clamp on the base, and the connecting rod clamp can be moved along the groove to measure the adhesive force of the frame glue of the liquid crystal display panel with various sizes, so that the application range is wider; finally, the application provides an adhesion test fixture, be provided with the slide rail on the connecting rod anchor clamps, the pressboard can be followed the slide rail reciprocates, can the liquid crystal display panel of multiple different thickness of centre gripping and be convenient for more realize pressing from both sides tightly and the action of relaxing.
The foregoing describes in detail a bonding force testing jig and a testing method thereof provided in the embodiments of the present application, and specific examples are applied herein to illustrate principles and implementations of the present application, where the foregoing description of the embodiments is only for helping to understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. An adhesive force test fixture, comprising: a base, a connecting rod clamp, a pressing plate, a laser range finder and a thimble; wherein, the liquid crystal display device comprises a liquid crystal display device,
the base is arranged at the lowest end and used for placing a liquid crystal display panel, the liquid crystal display panel comprises a color film substrate, an array substrate and frame glue, the frame glue is adhered between the color film substrate and the array substrate, the base comprises a first side face, a second side face, a third side face, a fourth side face, a fifth side face, a sixth side face and a seventh side face, the array substrate is attached to the base, and one corner of the liquid crystal display panel protrudes out of the seventh side face;
the connecting rod clamp protrudes out of one side of the base for placing the liquid crystal display panel and is connected with the pressing plate;
the pressing plate is arranged on the connecting rod clamp, vertically intersects with the connecting rod clamp, is parallel to the base and is matched with the base to clamp the liquid crystal display panel;
the laser range finder is bound with the thimble and is used for measuring a distance value between one corner of the color film substrate protruding from the seventh side face and the connecting rod clamp, if the measured distance value is not in a preset range, the distance value between the liquid crystal display panel and the connecting rod clamp is continuously adjusted, so that the distance value between one corner of the color film substrate protruding from the seventh side face and the connecting rod clamp reaches a preset azimuth; if the measured distance value is within the preset range, the distance between the liquid crystal display panel and the connecting rod clamp does not need to be continuously adjusted;
the thimble is perpendicular to one side of the base for placing the liquid crystal display panel and can reciprocate up and down along the direction of the connecting rod clamp.
2. The adhesion testing jig of claim 1, wherein the bonding plate is connected to the connecting rod fixture by a sliding rail.
3. The adhesion testing jig of claim 2, wherein the base is provided with a groove along which the link fixture moves back and forth on the base.
4. The adhesion testing jig of claim 3, wherein the length of the groove is less than the length of the base diagonal.
5. The fixture of claim 4, wherein the groove and the rail each have a predetermined length.
6. The adhesion test fixture of claim 5, wherein the predetermined length of the groove and the slide rail is: 1-20cm.
7. The fixture of claim 1, wherein the length of the bonding plate is less than or equal to the length of any side of the base.
8. An adhesion testing method, comprising the adhesion testing jig of any one of claims 1 to 7, the method comprising the steps of:
s10, providing an adhesive force test fixture, a color film substrate, an array substrate and frame glue;
s20, firstly, bonding the color film substrate and the array substrate together by using the frame glue to form a liquid crystal display panel;
s30, placing the liquid crystal display panel into the adhesive force testing jig, enabling the array substrate in the liquid crystal display panel to be attached to the base, and enabling one corner of the liquid crystal display panel to protrude out of a seventh side surface of the base;
s40, measuring the distance between one corner of the color film substrate protruding out of the seventh side surface of the base and the connecting rod clamp by using a laser range finder;
s50, if the distance value measured in the step S40 is not in the preset range, continuously adjusting the distance between the liquid crystal display panel and the connecting rod clamp, so that the distance value between the corner of the color film substrate protruding from the seventh side surface of the base and the connecting rod clamp reaches the preset range;
s60, if the distance value measured in the step S40 is within the preset range, the distance between the liquid crystal display panel and the connecting rod clamp is not required to be continuously adjusted;
s70, fixing the liquid crystal display panel between the pressing plate and the base;
and S80, pressing the ejector pin on the array substrate until the color film substrate is separated from the array substrate, and recording the force used for pressing the ejector pin at the moment.
9. The adhesion testing method of claim 8, wherein step "S30" comprises:
s301, pushing the pressing plate along a sliding rail of the connecting rod clamp to deviate from the base, so that the distance value between the pressing plate and the base is larger than the thickness of the liquid crystal display panel;
s302, placing the liquid crystal display panel between the pressing plate and the base, enabling one side of the liquid crystal display panel to be tightly attached to the connecting rod clamp, and enabling one corner of the liquid crystal display panel to protrude out of a seventh side face of the base;
s303, pushing the pressing plate along the sliding rail of the connecting rod clamp to a direction close to the base, so that the liquid crystal display panel is clamped between the pressing plate and the base.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010449221.2A CN111538176B (en) | 2020-05-25 | 2020-05-25 | Adhesive force test fixture and test method thereof |
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| CN202010449221.2A CN111538176B (en) | 2020-05-25 | 2020-05-25 | Adhesive force test fixture and test method thereof |
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| CN111538176B true CN111538176B (en) | 2023-06-27 |
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| KR101301517B1 (en) * | 2008-02-21 | 2013-09-04 | 엘지디스플레이 주식회사 | Substrate test apparatus for LCD and substrate test method using the same |
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