CN114326218B - Display panel and method for detecting cracks in sealant layer of display panel - Google Patents
Display panel and method for detecting cracks in sealant layer of display panel Download PDFInfo
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- CN114326218B CN114326218B CN202210054439.7A CN202210054439A CN114326218B CN 114326218 B CN114326218 B CN 114326218B CN 202210054439 A CN202210054439 A CN 202210054439A CN 114326218 B CN114326218 B CN 114326218B
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
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- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims abstract description 3
- 238000003860 storage Methods 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 10
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- 239000011425 bamboo Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 2
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
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- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
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- 239000010409 thin film Substances 0.000 description 1
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Abstract
The invention discloses a display panel and a method for detecting cracks in a sealant layer of the display panel, which comprises the steps of dripping orientation liquid on a substrate to form an orientation layer, baking the formed orientation layer to enable the orientation liquid to be dried, polishing the orientation liquid layer to form a plurality of guide grooves, coating sealant around the orientation liquid layer, filling the sealant into a material cylinder, increasing air pressure in the material cylinder to discharge the sealant through a material extrusion section at the bottom end of the material cylinder, and arranging metal wires in the material cylinder in a penetrating manner, wherein the metal wires are wrapped by the sealant; after letting the sealant include the wire, be favorable to later stage to whether detect the crack or fracture appear in the sealant, this detection device simple structure is convenient for implement and operate, and is with low costs, in addition, through the inboard parcel at the sealant has the wire, through heating the wire, melts dry sealant, makes it become molten state, is favorable to dismantling the separation with first base plate and second base plate.
Description
Technical Field
The present invention relates to the field of display panel detection technology, and in particular, to a display panel and a method for detecting cracks in a sealant layer of the display panel.
Background
Display devices such as liquid crystal display devices and organic light emitting diode display devices have been widely used. In general, a liquid crystal display device includes a counter substrate and an array substrate facing each other. Thin film transistors, gate lines, data lines, pixel electrodes, common electrodes, and common electrode lines are disposed on the array substrate and the counter substrate. Between these two substrates, a liquid crystal material is injected to form a liquid crystal layer. In general, an organic light emitting diode display device includes a counter substrate and an array substrate facing each other. An array substrate in an organic light emitting diode display device includes an anode, a light emitting layer, and a cathode. In liquid crystal display devices and organic light emitting diode display devices, a frame sealant is generally used to encapsulate an array substrate and a counter substrate together.
Chinese patent No. CN109791316a discloses a display panel. The display panel includes: a first substrate; a second substrate facing the first substrate; a sealant layer between the first and second substrates for sealing the first and second substrates together to form a cartridge; and a first wire layer including a first continuous wire configured to detect a crack in the sealant layer. The first wire layer is in contact with the sealant layer.
However, the device detects the sealant layer on the first substrate and the second substrate through the arranged first wire layer and the second wire layer, when in actual use, the process is relatively complex, the production cost is high, the disassembly of the display panel is not facilitated in the actual application, and when the first substrate and the second substrate are required to be separated subsequently, the first substrate and the second substrate are closely adhered through the sealant, so that the first substrate and the second substrate can be damaged in the separation process.
Accordingly, there is a need to provide a display panel and a method of detecting cracks in a sealant layer of the display panel that solve the above-described problems.
Disclosure of Invention
The invention aims to provide a display panel and a method for detecting cracks in a sealant layer of the display panel, so as to solve the problems that in the prior art, the sealant layer on a first substrate and a second substrate is detected through a first wire layer and a second wire layer, and when the display panel is actually used, the process is complex, the production cost is high, and the disassembly of the display panel is not easy in the actual application, and when the first substrate and the second substrate are required to be separated later, the first substrate and the second substrate are damaged in the separation process because the first substrate and the second substrate are closely adhered through the sealant.
Based on the thought, the invention provides the following technical scheme: comprises forming an alignment layer by dropping an alignment liquid onto a substrate,
Baking the formed orientation layer to dry the orientation liquid,
Polishing the orientation liquid layer to form a plurality of guide grooves,
A sealant is applied around the alignment liquid layer using an application device,
The sealing agent is filled in the material cylinder, the air pressure in the material cylinder is increased to discharge the sealing agent through the extrusion section at the bottom end of the material cylinder, the metal wire is penetratingly arranged in the material cylinder and wrapped by the sealing agent, and when the sealing agent is coated around the orientation liquid layer, the synchronous belt is paved around the orientation liquid layer.
As a further scheme of the invention: the coating device specifically comprises a sliding rail and a cross beam arranged at the top of the sliding rail in a sliding manner, and the material cylinder is arranged at the bottom of the cross beam in a sliding manner.
As a further scheme of the invention: the top of the material cylinder is provided with a storage box, and a sleeve is fixedly connected between the bottom of the storage box and the top of the material cylinder.
As a further scheme of the invention: the material cylinder comprises a columnar heating section, the heating section downwards extends to form a conical normal temperature section, the heating section and the normal temperature section are integrally formed, the bottom end of the normal temperature section downwards extends to form an extrusion section, and the bottom of the extrusion section is provided with an opening for discharging the sealant.
As a further scheme of the invention: the inside rotation of storage box is provided with the pivot, and both ends are rotated with the storage box through the bearing around the pivot and are connected, and the outside fixedly connected with reel of pivot, twine on the reel has the wire, and the one end of wire is fixed mutually with the reel, and the other end of wire sets up to free end downwardly extending and pass storage box and material section of thick bamboo, the wire extends to the crowded material section of thick bamboo.
As a further scheme of the invention: the top fixedly connected with fixed plate at the material section of thick bamboo, the top fixedly connected with air pump of fixed plate, the output intercommunication of air pump is provided with the blast pipe, and the one end that the air pump was kept away from to the blast pipe passes fixed plate and material section of thick bamboo and extends to the inside of material section of thick bamboo.
As a further scheme of the invention: the outside fixedly connected with boss of material section is crowded to the material section of thick bamboo, and the bottom of boss slides and is provided with the cutter, and the cutter sets up to the L form, and the top of boss is provided with electric putter, and electric putter's output is fixed mutually with the cutter.
As a further scheme of the invention: be located and be provided with the connecting block on the first base plate of crowded material section bottom, the top of connecting block is provided with the indent, two connect through the insulating block between the connecting block, be provided with conductive pin on the one end that the connecting block extended first base plate, conductive pin switches on each other with the connecting block, the top of first base plate is provided with the second base plate, and the bottom of second base plate is located and is provided with the briquetting directly over the indent, briquetting and indent looks adaptation.
As a further scheme of the invention: the inner side of the heating section of the material cylinder is provided with a heating layer, and the normal temperature section on the material cylinder is made of heat insulation materials.
The sealant layer on the display panel is detected using a method of detecting a crack in the sealant layer of the display panel.
Compared with the prior art, the invention has the beneficial effects that: through letting the sealant include after the wire, again with the sealant extrusion coating on first base plate, be favorable to later stage to whether the crack appears to the sealant or fracture detects, and this detection device simple structure, be convenient for implement and operation, and is with low costs, in addition, through the inboard parcel at the sealant has the wire, when need dismantle first base plate and second base plate, can heat the wire circular telegram, because the wire has higher resistance, consequently, the wire can gradually generate heat in the circular telegram process, thereby melt dry sealant, make it become molten state, be favorable to dismantling separation first base plate and second base plate, and not cause the damage to first base plate and second base plate, traditional first base plate and second base plate bonding structure is comparatively simple, when dismantling, because the sealant has strengthened viscidity, cause the damage easily in the in-process of dismantling first base plate and second base plate.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the connection structure of the storage box, wire and cartridge of the present invention;
FIG. 4 is a schematic view of the structure of the connecting block and the pressing block of the present invention;
FIG. 5 is a front view of the present invention;
FIG. 6 is a cross-sectional view of a cartridge of the present invention;
FIG. 7 is a top view of the present invention;
FIG. 8 is an enlarged view of the portion A of FIG. 2 in accordance with the present invention;
FIG. 9 is an enlarged view of the structure of portion B of FIG. 3 in accordance with the present invention;
FIG. 10 is a schematic view of the spindle and reel construction of the present invention;
FIG. 11 is a bottom view of the display panel of the present invention;
fig. 12 is a front view of a display panel of the present invention.
In the figure: 1. a slide rail; 2. a cross beam; 3. a material cylinder; 4. a first substrate; 5. a first rack; 6. a walking mechanism; 7. a storage box; 8. a fixing plate; 9. a driving motor; 10. a wire; 11. an air pump; 12. an exhaust pipe; 13. a heating section; 14. a normal temperature section; 15. a second substrate; 16. briquetting; 17. an insulating block; 18. pressing a groove; 19. a connecting block; 20. a conductive pin; 21. a material extruding section; 22. an opening; 23. a cutter; 24. an electric push rod; 25. a second rack; 26. a second traveling gear; 27. a reel; 28. a rotating shaft; 29. a heating layer; 30. a display panel; 31. a sleeve.
Detailed Description
As shown in fig. 1-2, 7-8 and 11-12, a method for detecting cracks in a sealant layer of a display panel comprises a sliding rail 1 and a cross beam 2 slidably arranged at the top of the sliding rail 1, wherein traveling mechanisms 6 are arranged on two sides of the bottom of the cross beam 2, each traveling mechanism 6 comprises a traveling box and a traveling motor arranged in the traveling box, a transmission shaft is connected to an output shaft of each traveling motor, an output end of each transmission shaft is connected with a first traveling gear through a gear set, each traveling box is arranged in a sliding groove of the sliding rail 1, a first rack 5 is fixedly connected in the sliding groove of the sliding rail 1, the first traveling gears are meshed with the first racks 5, the cross beam 2 can be driven to move on the sliding rail 1 through the meshing of the first traveling gears and the first racks 5, and the mechanism is a common structure in the mechanical field and is not repeated.
The top and the bottom of the cross beam 2 are respectively provided with a storage box 7 and a material cylinder 3, a sleeve 31 is fixedly connected between the bottom of the storage box 7 and the top of the material cylinder 3, the storage box 7 and the material cylinder 3 are connected through the sleeve 31, through grooves matched with the sleeve 31 are formed in the cross beam 2, the sleeve 31 can move along the length direction of the cross beam 2, guide grooves are formed in two sides of the through grooves in the cross beam 2 at the same time, guide wheels are fixedly connected to two sides of the bottom of the storage box 7, the guide wheels are arranged in the guide grooves, the storage box 7 can be conveniently driven to move at the top of the cross beam 2, a fixed plate 8 is fixedly connected to one side of the top of the material cylinder 3, a driving motor 9 is fixedly connected to the output end of the fixed plate 8, a second running gear 26 is fixedly connected to the bottom of the cross beam 2, the second rack 25 meshed with the second running gear 26 is driven to rotate through the driving motor 9, the fixed plate 8 and the bottom of the cross beam 3 can be driven to move along the length direction of the cross beam 7 through the engagement of the second running gear 26 and the second rack 25.
As shown in fig. 3-6 and 9-10, the material cylinder 3 comprises a columnar heating section 13, the heating section 13 is downwardly extended with a conical normal temperature section 14, the heating section 13 and the normal temperature section 14 are integrally formed, the bottom end of the normal temperature section 14 is downwardly extended with a material extruding section 21, and the bottom of the material extruding section 21 is provided with an opening 22 for discharging the sealant.
Further, a rotating shaft 28 is rotatably arranged in the storage box 7, the front end and the rear end of the rotating shaft 28 are rotatably connected with the storage box 7 through bearings, a reel 27 is fixedly connected to the outer side of the rotating shaft 28, a wire 10 is wound on the reel 27, one end of the wire 10 is fixed to the reel 27, the other end of the wire 10 is arranged to extend downwards as a free end and penetrates through the storage box 7, the sleeve 31, the fixing plate 8 and the material barrel 3, the free end of the wire penetrates through the material barrel 3 and reaches the material extrusion section 21 of the material barrel 3, and in actual use, sealant is filled in the material barrel 3, and the wire 10 penetrating through the material barrel 3 is wrapped by the sealant.
In order to extrude the sealant in the material cylinder 3 through the extruding section 21, one side, far away from the driving motor 9, of the top of the fixed plate 8 is fixedly connected with an air pump 11, the output end of the air pump 11 is communicated with an exhaust pipe 12, one end, far away from the air pump 11, of the exhaust pipe 12 penetrates through the fixed plate 8 and the material cylinder 3 and extends to the inside of the material cylinder 3, and the air pump 11 is used for continuously supplementing air to the inside of the material cylinder 3, so that the air pressure in the material cylinder 3 is continuously increased, the sealant in the material cylinder 3 is promoted to be discharged through the extruding section 21, and the output end of the air pump 11 is provided with an air inlet pipe.
Still further, fixedly connected with boss in the outside of the crowded material section 21 of material section 3, the bottom of boss slides and is provided with cutter 23, and cutter 23 sets up to the L form, and the top of boss is provided with electric putter 24, and electric putter 24's output is fixed mutually with cutter 23 to drive cutter 23 along the length direction of boss and remove, be favorable to cutting off the sealant that extrudes, thereby make the sealant be coated on display panel 30's first base plate 4.
The electric push rod 24 is fixed on the boss through the base, the bottom of the boss is fixedly connected with a limiting plate, the limiting plate is U-shaped, the cutter 23 passes through the space between the limiting plate and the boss, the cutter 23 can be supported through the limiting plate, and the moving stability of the cutter 23 is improved.
Still further, be provided with connecting block 19 on the first base plate 4 of crowded material section 21 bottom, the top of connecting block 19 is provided with indent 18, and connecting block 19 is supported by conductive metal, for example material such as iron, and adjacent two connecting block 19 arc are handled and are distributed, as shown in fig. 4, connect through insulating block 17 between two connecting blocks 19, can avoid switching on between two connecting blocks 19 through being provided with insulating block 17, and be provided with conductive pin 20 on the one end that connecting block 19 extends first base plate 4, conductive pin 20 switches on each other with connecting block 19, and be provided with second base plate 15 at the top of first base plate 4, the bottom of second base plate 15 is located the indent 18 and is provided with briquetting 16, briquetting 16 and indent 18 looks adaptation, after the sealant coating is accomplished, can place second base plate 15 at first base plate 4 top, thereby make first base plate 4 and second base plate 15 bond each other, after first base plate 4 and second base plate 15 bond each other, briquetting 16 just places in indent 18 inside.
In actual use, the travelling motor can drive the cross beam 2 to move along the direction of the guide rail, the driving motor 9 can drive the second travelling gear 26 to rotate, the second travelling motor can drive the storage box 7 and the material cylinder 3 to move along the length direction of the cross beam 2 through the engagement of the second travelling motor and the second rack 25, meanwhile, the air is continuously fed into the material cylinder 3 through the output end of the air pump 11, so that the air pressure in the material cylinder 3 is increased, the sealant in the material cylinder 3 can be discharged through the extruding section 21 at the moment, and the wire 10 passes through the material cylinder 3 and reaches the extruding section 21 of the material cylinder 3, and the wire 10 wrapped by the wire 10 is wrapped by the rice flour machine in the material cylinder 3, so that when the sealant is extruded, the wire 10 wrapped by the wire is extruded together with the wire, and when the material cylinder 3 walks around the first substrate 4 to coat the sealant in the top outer side of the first substrate 4, the wire 10 wrapped by the sealant is paved outside the top of the first substrate 4 at the moment, and the wire 10 is wrapped by the sealant.
At the initial end of coating, the extrusion section 21 is arranged at the top of the connecting block 19, so that the extruded sealant is arranged at the bottom of the connecting block 19, after the material cylinder 3 walks round the first substrate 4, the extrusion section 21 at the bottom of the material cylinder is arranged at the top of the connecting block 19 at the other side, at the moment, the output end of the electric push rod 24 drives the cutter 23 to move along the length direction of the boss, and the extruded sealant and the wire 10 wrapped by the extruded sealant can be cut off, at the moment, the cut sealant falls onto the connecting block 19 at the other side.
After the sealant is coated, the second substrate 15 is placed on top of the first substrate 4 by an external device such as a robot and the second substrate 15 is pressed downward, at this time, the space between the first substrate 4 and the second substrate 15 can be sealed by the sealant, and when the second substrate 15 is pressed downward, the pressing block 16 at the bottom of the second substrate 15 can press the sealant downward and press it to the pressing groove 18 of the connection block 19, and as the sealant is pressed downward, it gradually spreads to both sides so that the wire 10 is gradually exposed, and therefore, when the pressing block 16 is pressed downward, the wire 10 can be gradually pressed into the pressing groove 18 so that the wire 10 is connected to the connection block 19, and the connection block 19 is made of a conductive material, at this time, the wire 10 and the connection block 19 are mutually conducted, and one of the two connection blocks 19 is provided with the conductive pin 20 extending out of one end of the first substrate 4, and the other is the positive electrode.
With progressive drying of the sealant, it is necessary to detect whether a crack is generated in the dried sealant, specifically, an external detection device such as a multimeter is used to detect voltage, and the conductive pins 20 of the two connection blocks 19 are respectively connected to the conductive pins 20 through the connection blocks 19, so that the resistance of the wire 10 can be detected by this method, while in the actual use process, the wire 10 adopts a tungsten wire or a cobalt wire, which has a higher resistance, if the sealant does not generate a crack or a fault, the wire 10 wrapped by the sealant is a complete wire 10, a corresponding resistance value can be tested and set as a standard value, and when the sealant generates a crack or a fault, since the wire 10 is wrapped more tightly after the sealant is dried, the friction between the sealant and the wire 10 increases, when the sealant generates a crack, the resistance of the wire 10 increases, and when the wire 10 generates a larger resistance value can be detected by the external device, and when the crack and the standard value of the sealant generates a crack or fault can be detected by comparing the resistance value with the resistance value.
In summary, the method is advantageous to detect whether the sealant is cracked or broken later by extrusion coating the sealant on the first substrate 4 after the sealant includes the metal wire 10, and the detection device has a simple structure, is convenient to implement and operate, and has low cost, in addition, the metal wire 10 is wrapped on the inner side of the sealant, when the first substrate 4 and the second substrate 15 need to be disassembled, the metal wire 10 can be electrified to be heated, and the metal wire 10 has higher resistance, so that the metal wire 10 gradually heats in the electrifying process, thereby melting the dried sealant to make the sealant into a molten state, facilitating the disassembly and separation of the first substrate 4 and the second substrate 15 without damaging the first substrate 4 and the second substrate 15, and the conventional first substrate 4 and the second substrate 15 have simpler bonding structure, and when the sealant is disassembled, the damage is easy to be caused in the process of disassembling the first substrate 4 and the second substrate 15 due to the enhanced viscosity of the sealant.
As shown in fig. 6, a heating layer 29 is disposed on the inner side of the heating section 13 on the material cylinder 3, the heating layer 29 is formed by laying heating wires, the normal temperature section 14 on the material cylinder 3 is made of a heat insulation material or a material with poor heat conductivity, such as refractory fiber, when in use, the heating section 13 of the material cylinder 3 is heated by the heating layer 29, so that the sealant in the heating section 13 inside the material cylinder 3 can be heated, the heat of the heating section 13 cannot be transmitted through the normal temperature section 14 on the material cylinder 3, but can be conducted through the sealant itself, so that the sealant in the normal temperature section 14 and the sealant in the sealant section 21 has lower temperature, the sealant in the heating section 13 has higher temperature, at this time, the sealant in the heating section 13 has higher fluidity relative to the sealant in the normal temperature section 14 and the sealant in the sealant section 21, the friction force on the metal wire 10 wrapped inside the sealing section is smaller, and the sealant in the normal temperature section 14 and the sealant section 21 has lower temperature, the cross-flow force on the metal wire 10 wrapped inside the sealing wire is larger, so that when the sealant is coated by the sealant in the sealant section 21 and the sealant is coated on the sealing section 10 and the sealing wire 10 is gradually moved simultaneously with the sealant in the first time when the sealant is laid on the sealing section 4.
In this way, therefore, the wire 10 is not prevented from being broken during the application of the sealant, which is advantageous in maintaining the integrity of the wire 10, thereby facilitating later detection of whether the sealant has broken.
Working principle: the two conductive pins 20 of the two connection blocks 19 are respectively connected through an external detection device such as a multimeter and the like for detecting voltage, and the conductive pins 20 are communicated with the metal wire 10 through the connection blocks 19, so that the resistance of the metal wire 10 can be detected through the method, the metal wire 10 adopts tungsten wires or cobalt wires which have higher resistance in the actual use process, if no cracks or faults occur in the sealant, the metal wire 10 wrapped by the sealant is a complete metal wire 10, a corresponding resistance value can be tested and set as a standard value, when the cracks or faults occur in the sealant, the friction force between the sealant and the metal wire 10 is increased due to the fact that the metal wire 10 is wrapped tightly after the sealant is dried, therefore, when the cracks occur in the sealant, the metal wire 10 can be damaged or the cracks occur, the resistance of the metal wire 10 is increased, a larger resistance value can be detected through the external device, and the cracks or faults can be detected through comparing the resistance value with the standard resistance value.
Claims (6)
1. A method of detecting a crack in a sealant layer of a display panel, comprising:
forming an alignment layer by dropping an alignment liquid onto a substrate,
Baking the formed orientation layer to dry the orientation liquid,
Polishing the orientation liquid layer to form a plurality of guide grooves,
A sealant is applied around the alignment liquid layer using an application device,
The method is characterized in that: the sealant is filled in the material cylinder, the air pressure in the material cylinder is increased to discharge the sealant through the material extruding section at the bottom end of the material cylinder, the metal wire is penetratingly arranged in the material cylinder and wrapped by the sealant, and when the sealant is coated around the orientation liquid layer, the metal wire is paved around the orientation liquid layer by the synchronous belt;
the top of the material cylinder is provided with a storage box, and a sleeve is fixedly connected between the bottom of the storage box and the top of the material cylinder;
The inside of the storage box is rotatably provided with a rotating shaft, the front end and the rear end of the rotating shaft are rotatably connected with the storage box through bearings, the outer side of the rotating shaft is fixedly connected with a reel, a metal wire is wound on the reel, one end of the metal wire is fixed with the reel, the other end of the metal wire is arranged to be a free end which extends downwards and penetrates through the storage box and the material barrel, and the free end of the metal wire extends to a material extruding section of the material barrel;
The first substrate positioned at the bottom of the extrusion section is provided with a connecting block, the top of the connecting block is provided with a pressing groove, the two connecting blocks are connected through an insulating block, one end of the connecting block extending out of the first substrate is provided with a conductive pin, the conductive pin and the connecting block are mutually communicated, the top of the first substrate is provided with a second substrate, the bottom of the second substrate is positioned right above the pressing groove and is provided with a pressing block, and the pressing block is matched with the pressing groove;
The device for detecting voltage through external detection equipment such as a universal meter is respectively connected with the conductive pins of the two connecting blocks, the conductive pins are communicated with the metal wires through the connecting blocks, the resistance of the metal wires can be detected through the method, the metal wires adopt tungsten wires or cobalt wires which have higher resistance in the actual use process, if no cracks or faults occur in the sealant, the metal wires wrapped by the sealant are complete metal wires, a corresponding resistance value can be tested and set as a standard value, when the cracks or faults occur in the sealant, the friction force between the sealant and the metal wires is increased due to the fact that the metal wires are wrapped more tightly after the sealant is dried, therefore, when the cracks occur in the sealant, the metal wires are damaged or broken, the resistance of the metal wires is increased at the moment, a larger resistance value can be detected through the external equipment, and the cracks or faults can be detected through the resistance value being compared with the standard resistance value.
2. The method of detecting cracks in a sealant layer of a display panel according to claim 1, wherein: the coating device specifically comprises a sliding rail and a cross beam arranged at the top of the sliding rail in a sliding manner, and the material cylinder is arranged at the bottom of the cross beam in a sliding manner.
3. The method of detecting cracks in a sealant layer of a display panel according to claim 1, wherein: the material cylinder comprises a columnar heating section, the heating section downwards extends to form a conical normal temperature section, the heating section and the normal temperature section are integrally formed, the bottom end of the normal temperature section downwards extends to form an extrusion section, and the bottom of the extrusion section is provided with an opening for discharging the sealant.
4. The method of detecting cracks in a sealant layer of a display panel according to claim 1, wherein: the top fixedly connected with fixed plate at the material section of thick bamboo, the top fixedly connected with air pump of fixed plate, the output intercommunication of air pump is provided with the blast pipe, and the one end that the air pump was kept away from to the blast pipe passes fixed plate and material section of thick bamboo and extends to the inside of material section of thick bamboo.
5. A method of detecting cracks in a sealant layer of a display panel according to claim 3, wherein: the outside fixedly connected with boss of crowded material section on the material section of thick bamboo, the bottom of boss slides and is provided with the cutter, and the cutter sets up to the L form, and the top of boss is provided with electric putter, and electric putter's output is fixed mutually with the cutter.
6. A method of detecting cracks in a sealant layer of a display panel according to claim 3, wherein: the inner side of the heating section on the material cylinder is provided with a heating layer, and the normal temperature section on the material cylinder is made of heat insulation materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210054439.7A CN114326218B (en) | 2022-01-18 | 2022-01-18 | Display panel and method for detecting cracks in sealant layer of display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210054439.7A CN114326218B (en) | 2022-01-18 | 2022-01-18 | Display panel and method for detecting cracks in sealant layer of display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114326218A CN114326218A (en) | 2022-04-12 |
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| CN1636731A (en) * | 2003-12-25 | 2005-07-13 | 精工爱普生株式会社 | Capping unit and control method for same, liquid droplet ejection apparatus and device manufacturing method |
| CN101093306A (en) * | 2006-06-20 | 2007-12-26 | 西山不锈化学股份有限公司 | Manufacturing method of FPD |
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| CN114326218A (en) | 2022-04-12 |
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