Fragment detection device and detection method

Abstract

The invention relates to the technical field of display device processing, in particular to a fragment detection device and detection method. The fragment detection device comprises a bearing platform and a plurality of detection assemblies, the detection assemblies are arranged on the bearing platform in an array mode, each detection assembly comprises a conductive part, a contact, an insulating part and a warning part, the conductive part is provided with a connecting end and a detection end which are opposite, the connecting end is connected to the corresponding bearing platform, the contact is arranged at the detection end through the insulating part, and the warning part is arranged on the bearing platform. The warning piece is connected in series between the conductive piece and the contact through a connecting wire; the multiple detection assemblies jointly bear the to-be-detected piece, and when the to-be-detected piece is broken, the metal film can be sputtered to the corresponding insulating piece through the broken piece position of the to-be-detected piece, so that the conductive piece and the contact current of the detection assembly corresponding to the broken piece position are conducted, and the warning piece gives an alarm, thereby reminding an operator that the to-be-detected piece is broken. The water is prevented from flowing into the next process; the plurality of detection assemblies can perform fragment detection on each position of the to-be-detected piece, and the detection precision is high.

Description

Technical Field

[0001] This invention relates to the field of display device processing technology, and in particular to a fragment detection device and detection method. Background Technology

[0002] Liquid Crystal Displays (LCDs) offer numerous advantages, including thinness, energy efficiency, and no radiation, and are widely used in electronic devices such as high-definition digital televisions, desktop computers, personal digital assistants (PDAs), laptops, mobile phones, and digital cameras. Most LCD devices in this field are backlit, consisting of a liquid crystal panel and a backlight module. The working principle of an LCD panel involves placing liquid crystal molecules between two parallel glass substrates. Numerous vertical and horizontal wires are positioned between the two substrates, and the direction of the liquid crystal molecules is controlled by whether or not electricity is applied, refracting light from the backlight module to create an image.

[0003] The manufacturing process of liquid crystal display devices includes a glass substrate coating process, which involves coating the surface of a glass substrate with one or more layers of a thin film of metal, alloy, or metal compound to modify the optical properties of the glass substrate and meet specific requirements. To prevent damage, chipping, or even fragmentation of the glass substrate during the coating process, fragment inspection is required after coating to prevent defective glass substrates from entering the next process.

[0004] like Figure 1 As shown, when the glass substrate 100' completes the coating process in the coating chamber 200', the receiving end of the transfer mechanism 300' extends into the coating chamber 200' to remove the coated glass substrate 100' and transfer it to the next process. A detection element 400' is provided at the outlet of the coating chamber 200'. When the glass substrate 100' passes through the outlet of the coating chamber 200', the detection element 400' can inspect the surface of the glass substrate 100'. However, in related technologies, there are two detection elements 400', and the two detection elements 400' are located on the left and right sides of the outlet of the coating chamber 200', respectively. They can only detect the left and right edges of the glass substrate 100', but cannot detect whether the middle position of the glass substrate 100' is damaged. This has a limited detection range, which will cause glass substrates 100' with damage in the middle position to flow into the next process, thereby affecting the yield of glass substrates 100' and the quality of the finished display device.

[0005] Therefore, there is an urgent need for a fragment detection device and method to solve the above problems. Summary of the Invention

[0006] One objective of this invention is to provide a fragment detection device with a simple structure that can perform comprehensive damage detection on glass substrates with good detection results, thereby ensuring the yield rate of glass substrates and the quality of display devices.

[0007] Another objective of this invention is to provide a detection method that is easy to operate and can perform comprehensive damage detection on glass substrates with good detection results, thereby ensuring the yield rate of glass substrates and the quality of display devices.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] A fragment detection device, comprising:

[0010] Platform;

[0011] A plurality of detection components are arranged in an array on the support platform. Each detection component includes a conductive element, a contact, an insulating element, and a warning element. The conductive element has a corresponding connection end and a detection end. The connection end is connected to the corresponding support platform. The contact is disposed on the detection end through the insulating element. The warning element is connected in series between the conductive element and the contact through a connecting wire.

[0012] Multiple detection components jointly carry the device under test. When the device under test breaks, a metal film can be sputtered onto the corresponding insulating component at the break location of the device under test, so that the conductive component and the contact current of the detection component corresponding to the break location are connected, and the warning component issues an alarm.

[0013] As a preferred embodiment of the fragment detection device provided by the present invention, the projection of the contact on the support platform is located within the projection area of ​​the insulating member on the support platform.

[0014] As a preferred embodiment of the fragment detection device provided by the present invention, the ratio of the cross-sectional area of ​​the contact to the cross-sectional area of ​​the insulating component is less than 1 / 10.

[0015] As a preferred embodiment of the fragment detection device provided by the present invention, the projection of the insulating member on the support platform is located within the projection area of ​​the detection end on the support platform.

[0016] As a preferred embodiment of the fragment detection device provided by the present invention, the carrying platform is provided with receiving slots corresponding to the detection components one by one, and each detection component is at least partially received in the corresponding receiving slot.

[0017] As a preferred embodiment of the fragment detection device provided by the present invention, the top of the contact point is flush with the top surface of the support platform.

[0018] As a preferred embodiment of the fragment detection device provided by the present invention, the connecting end is detachably connected to the supporting platform.

[0019] As a preferred embodiment of the fragment detection device provided by the present invention, the connecting end and the detection end are integrally formed;

[0020] And / or, the contacts are adhered to the insulating element;

[0021] And / or, the insulating element is adhered to the detection end.

[0022] As a preferred embodiment of the fragment detection device provided by the present invention, the cross-sectional shape of the insulating component is U-shaped, and the contact point is disposed in the central groove of the insulating component;

[0023] And / or, the cross-sectional shape of the detection end is U-shaped, and the insulating element is disposed in the central groove of the insulating element.

[0024] As a preferred embodiment of the fragment detection device provided by the present invention, the warning element includes a warning light and / or a buzzer.

[0025] The present invention also provides a detection method based on the fragment detection device described above, comprising the following steps:

[0026] The test piece is placed on the support platform of the fragment detection device, and the coating mechanism coats the surface of the test piece.

[0027] If the warning device does not issue an alarm, the transfer mechanism will transfer the test piece to the next process after the coating is completed.

[0028] If the warning device issues an alarm, the coating mechanism stops, and the transfer mechanism transfers the test piece to the fragment receiving area.

[0029] The beneficial effects of this invention are:

[0030] The fragment detection device provided by this invention includes a support platform and detection components. Multiple detection components are arrayed on the support platform to perform fragment detection at various locations of the test piece, thereby obtaining more accurate detection results. Each detection component includes a conductive element, a contact, an insulating element, and a warning element. The conductive element has a corresponding connection end and a detection end. The connection end is installed on the corresponding support platform, the contact is set at the detection end through the insulating element, and the warning element is connected in series between the conductive element and the contact through a connecting wire. Multiple detection components jointly support the test piece. When the test piece is fragmented, a metal film can be sputtered onto the corresponding insulating element at the fragment location of the test piece, so that the conductive element and contact of the detection component corresponding to the fragment location are connected, and the warning element issues an alarm. When the metal film is sputtered onto the insulating component, the insulating component can act as a conductive structure, thereby making the circuit structure formed by the conductive component, contact, insulating component and warning component conductive. The warning component can then issue an alarm, thereby reminding the operator that the component under test has broken. The operator can promptly remove the component under test that has broken, preventing it from flowing into the next process, thus ensuring the yield rate of the finished display device.

[0031] The detection method provided by this invention, based on the aforementioned fragment detection device, can perform fragment detection on the test piece during the coating process, facilitating operation. Furthermore, the support platform is equipped with several detection components arranged in an array, which can perform comprehensive fragment detection at various locations on the test piece, thereby obtaining more accurate detection results and ensuring the yield rate of the glass substrate and the quality of the display device. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the coating chamber and transfer mechanism provided in the related technology;

[0033] Figure 2 This is a schematic diagram of the structure of the support platform provided in an embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional schematic diagram of the fragment detection device provided in an embodiment of the present invention carrying a test piece;

[0035] Figure 4 This is an exploded structural diagram of the detection component and part of the support platform provided in an embodiment of the present invention;

[0036] Figure 5 This is a circuit diagram of the detection component provided in an embodiment of the present invention.

[0037] In the picture:

[0038] 100' Glass substrate; 200' Coating chamber; 300' Transfer mechanism; 400' Inspection piece;

[0039] 100. Component to be tested;

[0040] 10. Supporting platform; 101. Receiving slot;

[0041] 20. Detection component; 21. Conductive component; 211. Connection terminal; 212. Detection terminal; 22. Contact point; 23. Insulating component; 24. Warning component. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] Example 1

[0046] Figure 2 This diagram shows the structure of the support platform 10 provided in this embodiment. Figure 3 This embodiment shows a cross-sectional schematic diagram of the fragment detection device carrying the test piece 100. Figures 2-3As shown, this embodiment provides a fragment detection device, which includes a support platform 10 and a plurality of detection components 20 arranged in an array on the support platform 10. The detection components 20 are configured to detect whether fragments exist at corresponding positions of the test piece 100. Since the detection components 20 are distributed in an array on the support platform 10, fragment detection can be performed at various positions of the test piece 100, thus obtaining more accurate detection results.

[0047] It should be specifically explained that, in this embodiment, the test piece 100 specifically refers to the glass substrate of the liquid crystal display device, and the support platform 10 specifically refers to the support device in the vapor deposition equipment used to support the glass substrate.

[0048] It is understandable that the more detection components 20 there are, the more detection points can be found on the test piece 100, and the more accurate the fragment detection results of the test piece 100. This embodiment does not limit the specific number of detection components 20, and designers can limit the specific number of detection components 20 according to actual detection requirements.

[0049] Figure 4 This diagram shows an exploded view of the detection component 20 and part of the support platform 10 provided in this embodiment. Figure 5 A circuit diagram of the detection component 20 provided in this embodiment is shown, as follows: Figures 4-5 and combined Figure 2 , Figure 3 As shown, each detection component 20 includes a conductive element 21, a contact 22, an insulating element 23, and a warning element 24. The conductive element 21 has a corresponding connection end 211 and a detection end 212. The connection end 211 is connected to the corresponding support platform 10. The contact 22 is disposed on the detection end 212 through the insulating element 23. The warning element 24 is connected in series between the conductive element 21 and the contact 22 through a connecting wire. Multiple detection components 20 jointly support the test piece 100. When the test piece 100 is broken, the metal film can be sputtered onto the corresponding insulating element 23 through the broken position of the test piece 100, so that the current of the conductive element 21 and the contact 22 of the detection component 20 corresponding to the broken position is conducted, and the warning element 24 issues an alarm. When the metal film is sputtered onto the insulating component 23, the insulating component 23 can act as a conductive structure, thereby making the circuit structure formed by the conductive component 21, the contact 22, the insulating component 23 and the warning component 24 conductive. The warning component 24 can then issue an alarm, thereby reminding the operator that the test component 100 has broken. The operator can promptly remove the broken test component 100 to prevent it from flowing into the next process, thereby ensuring the yield rate of the finished display device.

[0050] In practical applications, only the support device used to support the glass substrate in the coating chamber needs to be improved. There is no need to improve the entire coating equipment or add an extra inspection area to the display device production line. This can improve space utilization and significantly reduce equipment replacement costs.

[0051] In some embodiments, the projection of contact 22 onto the carrier platform 10 lies within the projection area of ​​insulator 23 onto the carrier platform 10. This design ensures that the metal film can be sputtered onto insulator 23 through the fragment location on test piece 100, thereby enabling electrical connection between conductive element 21 and contact 22 via the metal film on insulator 23.

[0052] In some embodiments, the ratio of the cross-sectional area of ​​the contact 22 to the cross-sectional area of ​​the insulating element 23 is less than 1 / 10. This design can prevent the metal film from being sputtered onto the contact 22 only after passing through the fragment location on the test piece 100, without being sputtered onto the insulating element 23, thereby further ensuring the accuracy of the fragment detection device in detecting fragments in the test piece 100.

[0053] For example, the ratio of the cross-sectional area of ​​contact 22 to the cross-sectional area of ​​insulation 23 can be 1 / 10, 1 / 11, 1 / 12, 1 / 15, 1 / 16, 1 / 20, etc. Of course, the ratio of the cross-sectional area of ​​contact 22 to the cross-sectional area of ​​insulation 23 is not limited to the above values, and designers can make adaptive adjustments to the ratio of the cross-sectional area of ​​contact 22 to the cross-sectional area of ​​insulation 23 according to actual testing requirements.

[0054] In some embodiments, the projection of the insulating element 23 onto the support platform 10 is within the projection area of ​​the detection end 212 onto the support platform 10. This design ensures that the metal film sputtered at any position on the insulating element 23 can be electrically connected to the detection end 212, thereby further ensuring the accuracy of the fragment detection device in detecting fragments of the test piece 100.

[0055] like Figures 2-4 As shown, the support platform 10 is provided with receiving slots 101 corresponding to the detection components 20 one by one, and each detection component 20 is at least partially received in the corresponding receiving slot 101. On the one hand, the structure is simple, which makes it easy to accurately position and install the detection components 20 on the support platform 10; on the other hand, it also allows the detection components 20 to be at least partially embedded in the support platform 10, thereby reducing the height of the entire fragment detection device, improving the structural stability of the fragment detection device, and reducing the material cost of the support platform 10 to a certain extent.

[0056] In some embodiments, the detection component 20 is completely housed in the corresponding receiving groove 101, meaning the top of the contact 22 is flush with the top surface of the support platform 10. In other words, the support platform 10 and the detection component 20 jointly support the test piece 100, increasing the bearing area of ​​the fragment detection device and improving bearing stability. Furthermore, this design prevents the metal film from splashing from the fragment location of the test piece 100 onto other detection components 20 through the gap between adjacent detection components 20 when the test piece 100 breaks, thus avoiding operator errors in accurately determining the fragment location and affecting the detection accuracy of the fragment detection device.

[0057] In some embodiments, the connection end 211 is detachably connected to the support platform 10. When the test piece 100 breaks, a metal film will be sputtered onto the insulating part 23 of the detection component 20 at the corresponding break position. In order not to affect the continued use of the break detection device, the operator can remove the detection component 20 from the support platform 10 and replace it with a new detection component 20. That is, it is not necessary to replace the entire break detection device, thereby reducing the operating cost of the break detection device.

[0058] For example, the connecting end 211 is threaded to the bearing platform 10, that is, the connecting end 211 is provided with an external thread, and an internal thread hole is provided at the bottom of each receiving groove 101. The external thread of the connecting end 211 is threaded to the internal thread hole of the bearing platform 10. The structure is simple, the connection is tight, and it is easy to disassemble and assemble.

[0059] like Figure 4 and Figure 5 As shown, in some embodiments, the connecting end 211 and the detection end 212 are integrally formed to reduce the number of parts, simplify the assembly process, and make installation simple.

[0060] In some embodiments, the contact 22 is adhered to the insulating member 23 for easy assembly and secure connection.

[0061] In some embodiments, the cross-sectional shape of the insulating element 23 is U-shaped, and the contact 22 is disposed in the central groove of the insulating element 23. This arrangement is equivalent to enclosing the contact 22 within the central groove of the insulating element 23, increasing the contact area between them, improving the insulation effect, and preventing direct contact between the contact 22 and the conductive element 21 to conduct current when the tested component 100 is not broken, thus avoiding interference with the test results.

[0062] In some embodiments, the insulating element 23 is adhered to the detection end 212 for easy assembly and a secure connection.

[0063] In some embodiments, the cross-sectional shape of the detection end 212 is U-shaped, and the insulating element 23 is disposed in the central groove of the insulating element 23. This arrangement allows for more accurate positioning and installation of the insulating element 23, and when the test piece 100 breaks, the metal film only needs to be sputtered onto the upper surface of the insulating element 23 to achieve electrical connection between the contact 22 and the conductive element 21, further improving the detection accuracy of the fragment detection device.

[0064] In some embodiments, the warning element 24 includes a warning light and / or a buzzer.

[0065] When the warning element 24 is a warning light, the warning light of the detection component 20 corresponding to the position on the test piece 100 where no fragment has occurred will not light up; if the test piece 100 is fragmented, the warning light of the detection component 20 corresponding to the position on the test piece 100 where the fragment has occurred will light up, and the operator can then determine the specific position of the fragment on the test piece 100 based on the lit warning light, thereby improving the detection accuracy.

[0066] When the warning device 24 is a buzzer, the buzzer of the detection component 20 corresponding to the position on the test piece 100 where no fragment has occurred will not sound; if the test piece 100 is fragmented, the buzzer of the detection component 20 corresponding to the position on the test piece 100 where the fragment has occurred will sound, and the operator can then determine the specific position of the fragment on the test piece 100 based on the sound position, thereby improving the detection accuracy.

[0067] In other embodiments, a warning light and a buzzer can be installed simultaneously. If the test piece 100 breaks, the warning light of the detection component 20 corresponding to the location of the breakage on the test piece 100 will light up, and the buzzer will emit a buzzing sound. The operator can then determine the specific location of the breakage on the test piece 100 based on the sound location, resulting in high detection accuracy.

[0068] Example 2

[0069] This embodiment provides a detection method based on the fragment detection device provided in Embodiment 1. The detection method includes the following steps:

[0070] The test piece 100 is placed on the carrier platform 10 of the fragment detection device, and the coating mechanism coats the surface of the test piece 100.

[0071] If warning device 24 does not issue an alarm, the transfer mechanism will transfer the test piece 100 to the next process after the coating is completed.

[0072] If warning device 24 issues an alarm, the coating mechanism stops, and the transfer mechanism transfers the test piece 100 to the fragment receiving area.

[0073] Specifically, when the device under test 100 is placed on the support platform 10, the contact 22 is connected to the detection end 212 of the conductive element 21 through the insulating element 23. The circuit structure formed by the conductive element 21, the contact 22, the insulating element 23 and the warning element 24 is not conductive, and the warning element 24 will not issue an alarm.

[0074] After the coating mechanism is started, if the test piece 100 breaks, the metal film can be sputtered onto the corresponding insulating component 23 at the breakage location. The insulating component 23 acts as a conductive structure, thereby making the circuit structure formed by the conductive component 21, contact 22, insulating component 23, and warning component 24 conductive. The warning component 24 will then issue an alarm. At this time, the coating mechanism is stopped. The operator can manually transfer the broken test piece 100 to the broken piece collection area, or the transfer mechanism can automatically transfer the broken test piece 100 to the broken piece collection area. Stopping the coating mechanism is to avoid wasting coating material, thereby reducing the processing cost of the display device to a certain extent.

[0075] If the entire coating process is completed after the coating mechanism is started, and the warning device 24 does not issue any warning, it means that the test piece 100 has not been broken. The transfer mechanism can then transfer the coated test piece 100 to the next process, thereby ensuring the yield rate of the test piece 100 and thus ensuring the quality of the finished display device.

[0076] The detection method provided in this embodiment can detect fragments in the test piece 100 during the coating process, which is convenient to operate. In addition, the support platform 10 is provided with several detection components 20 arranged in an array, which can perform comprehensive fragment detection at various positions of the test piece 100, thereby obtaining more accurate detection results, thus ensuring the yield rate of the glass substrate and the quality of the display device.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A fragment detection device, characterized in that, include: Platform (10); A plurality of detection components (20) are arranged in an array on the support platform (10). Each detection component (20) includes a conductive element (21), a contact (22), an insulating element (23), and a warning element (24). The conductive element (21) has a corresponding connection end (211) and a detection end (212). The connection end (211) is connected to the corresponding support platform (10). The contact (22) is disposed on the detection end (212) through the insulating element (23). The warning element (24) is connected in series between the conductive element (21) and the contact (22) through a connecting wire. Multiple detection components (20) jointly carry the test piece (100). When the test piece (100) breaks, the metal film can be sputtered onto the corresponding insulating component (23) at the break position of the test piece (100), so that the current of the conductive component (21) and the contact (22) of the detection component (20) corresponding to the break position is connected, and the warning component (24) issues an alarm.

2. The fragment detection device according to claim 1, characterized in that, The projection of the contact (22) on the support platform (10) is within the projection area of ​​the insulating element (23) on the support platform (10); And / or, the projection of the insulating element (23) on the support platform (10) is within the projection area of ​​the detection end (212) on the support platform (10).

3. The fragment detection device according to claim 2, characterized in that, The ratio of the cross-sectional area of ​​the contact (22) to the cross-sectional area of ​​the insulating element (23) is less than 1 / 10.

4. The fragment detection device according to claim 1, characterized in that, The carrying platform (10) is provided with receiving slots (101) corresponding to the detection components (20) one by one, and each detection component (20) is at least partially received in the corresponding receiving slot (101).

5. The fragment detection device according to claim 4, characterized in that, The top of the contact point (22) is flush with the top surface of the support platform (10).

6. The fragment detection device according to claim 1, characterized in that, The connecting end (211) is detachably connected to the bearing platform (10).

7. The fragment detection device according to claim 1, characterized in that, The connecting end (211) and the detection end (212) are integrally formed; And / or, the contact (22) is adhered to the insulating element (23); And / or, the insulating element (23) is adhered to the detection end (212).

8. The fragment detection device according to claim 1, characterized in that, The cross-sectional shape of the insulating component (23) is U-shaped, and the contact point (22) is disposed in the central groove of the insulating component (23); And / or, the cross-sectional shape of the detection end (212) is U-shaped, and the insulating element (23) is disposed in the central groove of the insulating element (23).

9. The fragment detection device according to any one of claims 1 to 8, characterized in that, The warning device (24) includes a warning light and / or a buzzer.

10. A detection method, based on the fragment detection device as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The test piece (100) is placed on the support platform (10) of the fragment detection device, and the coating mechanism coats the surface of the test piece (100). If the warning device (24) does not issue a warning, the transfer mechanism will transfer the test piece (100) to the next process after the coating is completed; If the warning device (24) issues an alarm, the coating mechanism stops, and the transfer mechanism transfers the test piece (100) to the fragment receiving area.

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