CN112599057A - Detection device for display assembly and display assembly - Google Patents
Detection device for display assembly and display assembly Download PDFInfo
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- CN112599057A CN112599057A CN202011405829.1A CN202011405829A CN112599057A CN 112599057 A CN112599057 A CN 112599057A CN 202011405829 A CN202011405829 A CN 202011405829A CN 112599057 A CN112599057 A CN 112599057A
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- positioning
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06794—Devices for sensing when probes are in contact, or in position to contact, with measured object
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The application provides a detection device and display module for display module, detection device includes: a registration detection circuit; the positioning probe is electrically connected with the alignment detection circuit and is used for aligning and contacting with a positioning conductive part on the display component to be detected; after the positioning probe is aligned and contacted with the positioning conductive part, if the positioning probe is not contacted with the positioning conductive part, the alignment detection circuit generates alignment failure information. Through the design mode, the positioning relation between the display assembly to be tested and the detection device can be detected before the detection device conducts lighting test on the display assembly to be tested, so that the positioning between the display assembly to be tested and the detection device before the lighting test meets the requirements, the accuracy of the follow-up lighting test is improved, the damage of a test probe of the detection device to the display assembly is reduced, and the probability of burning out of the detection device is reduced.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a detection device for a display assembly and the display assembly.
Background
In the production and manufacturing process of the display industry, the intermediate lighting detection is a necessary production site, so that the material waste caused by the circulation of defective products to the next process can be avoided, and the customer complaint loss caused by the circulation of the defective products to downstream customers can be avoided.
As the size of the display module is smaller, the size of the conductive part to be tested (e.g., a pad to be tested) on the display module is also reduced, and the requirement for the positioning accuracy between the detection device and the display module is higher. If the deviation is generated between the detection device and the display component, the detection result is inaccurate, and the test probe on the detection device may cause the problems of abnormal picture, circuit damage, circuit scratch, signal short circuit, signal generator burnout and the like.
Therefore, it is necessary to ensure that the display module is positioned before the lighting test of the detection device.
Disclosure of Invention
The application provides a detection device for a display assembly and the display assembly, so that before the detection device conducts lighting test on the display assembly, the positioning between the detection device and the display assembly is ensured to meet the requirement.
In order to solve the technical problem, the application adopts a technical scheme that: there is provided a detection apparatus for a display module, including: a registration detection circuit; the positioning probe is electrically connected with the alignment detection circuit and is used for aligning and contacting with a positioning conductive part on the display component to be detected; after the positioning probe is aligned and contacted with the positioning conductive part, if the positioning probe is not contacted with the positioning conductive part, the alignment detection circuit generates alignment failure information.
The alignment detection circuit is specifically configured to detect whether a conductive loop is formed between the at least two positioning probes, and when the conductive loop is not formed, the alignment failure information is generated.
Wherein, still include: the test board is provided with a plurality of test probes which are arranged at intervals along a first direction; the positioning probes and the plurality of test probes are relatively fixed in the first direction and have the same orientation, and the tail ends of the positioning probes are telescopic and exceed the tail ends of the test probes in the natural state.
Wherein, still include: and the driving component is used for driving the test board to be close to the display component to be tested and stopping driving the test board to be close to the display component to be tested when the alignment detection circuit generates alignment failure information, so that the test probe cannot contact the display component to be tested.
The positioning probe and the test probe are spring needles, and the length of the positioning probe after being completely compressed is smaller than or equal to the length of the test probe after being completely compressed.
The plurality of test probes comprise a head end test probe and a tail end test probe which are positioned in the first direction, one of the positioning probes is positioned on the side, away from the tail end test probe, of the head end test probe, and one of the positioning probes is positioned on the side, away from the head end test probe, of the tail end test probe.
Wherein, still include: and the signal lamp is electrically connected between the positioning probe and the alignment detection circuit and is used for indicating whether alignment fails or not.
In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a display assembly comprising: the screen body is provided with a positioning conductive part at one side edge and is used for aligning and contacting with a positioning probe on the detection device; after the positioning probe is aligned and contacted with the positioning conductive part, if the positioning probe is not contacted with the positioning conductive part, an alignment detection circuit electrically connected with the positioning probe in the detection device generates alignment failure information.
The number of the positioning conductive parts is at least two, and at least part of the positioning conductive parts are electrically connected and are used for being respectively in alignment contact with at least two positioning probes one by one.
The side edge of the screen body is also provided with a plurality of conductive parts to be tested which are distributed at intervals along a first direction; the positioning conductive part and the conductive parts to be tested are relatively fixed in the first direction and are positioned on the same side surface of the screen body; the length of the positioning conductive part in the direction perpendicular to the first direction is smaller than or equal to that of the conductive part to be tested, and the width of the positioning conductive part in the first direction is smaller than or equal to that of the conductive part to be tested;
preferably, the plurality of conductive parts to be tested include a conductive part to be tested at the head end and a conductive part to be tested at the tail end which are located in the first direction, one of the positioning conductive parts is located at one side of the conductive part to be tested at the head end which is far away from the conductive part to be tested at the tail end, and one of the positioning conductive parts is located at one side of the conductive part to be tested at the tail end which is far away from the conductive.
Being different from the prior art situation, the beneficial effect of this application is: the detection device comprises a contraposition detection circuit and a positioning probe electrically connected with the contraposition detection circuit; the positioning probe is used for aligning and contacting with a positioning conductive part on a display component to be tested; after the positioning probe is aligned with the contact positioning conductive part, if the positioning probe is not in contact with the positioning conductive part, the alignment detection circuit generates alignment failure information. By the mode, the positioning relation between the display assembly to be tested and the detection device can be detected before the detection device performs lighting test on the display assembly to be tested, so that the positioning between the display assembly to be tested and the detection device before the lighting test meets the requirement, the accuracy of the subsequent lighting test is improved, the damage of the test probe of the detection device to the display assembly is reduced, and the probability that the detection device is burnt out is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of an embodiment of a detecting apparatus for a display module according to the present disclosure;
FIG. 2 is a schematic structural diagram of an embodiment of a display assembly of the present application;
FIG. 3 is a schematic diagram of an embodiment of the detection apparatus of FIG. 1 and the process of detecting the positioning of the display module of FIG. 2;
fig. 4 is a schematic structural diagram of an embodiment of the detection device in fig. 1 and the lighting detection process of the display device in fig. 2.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a detection apparatus for a display module according to the present application, and fig. 2 is a schematic structural diagram of an embodiment of a display module according to the present application. The inspection apparatus 10 includes a registration detection circuit (not shown) and a positioning probe 100.
Specifically, the alignment detection circuit may be configured to output a test signal, which may be a preset voltage signal or the like. In this embodiment, the alignment detection circuit can be integrated into a signal generation mechanism 102 to protect the alignment detection circuit. The positioning probe 100 is electrically connected to the alignment detection circuit, for example, electrically connected through a wire; the positioning probe 100 is used for aligning and contacting with the positioning conductive part 200 on the display component 20 to be tested; the display component 20 to be tested may be a display component in an array process, a panel process, a COG process, or an FOG process; the display assembly 20 may include a panel 204, and the positioning conductive part 200 is disposed on a side edge of the panel 204. After the positioning probe 100 is aligned with the positioning conductive part 200, if the positioning conductive part 200 is not touched, the alignment detection circuit generates alignment failure information. By the above method, before the lighting test of the display module 20 to be tested is performed by the detection device 10, the positioning relationship between the two can be detected to ensure that the positioning between the two meets the requirement before the lighting test, thereby improving the accuracy of the subsequent lighting test, reducing the damage of the test probe of the detection device 10 to the display module, and reducing the probability of the damage of the detection device 10.
In this embodiment, a display screen may be integrated on the signal generating mechanism 102 where the alignment detection circuit is located, and after the alignment detection circuit generates the alignment failure information, the alignment failure information may be transmitted to the controller, and the controller controls the display screen to pop up a corresponding reminder, where the reminder may be a character flash on the display screen. Or, a sound component may be integrated on the signal generating mechanism 102 where the alignment detection circuit is located, and after the alignment detection circuit generates the alignment failure information, the alignment failure information may be transmitted to the controller, and the controller controls the sound component to emit a corresponding sound prompt. Still alternatively, as shown in fig. 1, the detecting apparatus 10 further includes a signal lamp 104 electrically connected between the positioning probe 100 and the alignment detecting circuit for indicating whether the alignment fails; for example, if the positioning probe 100 does not contact the positioning conductive part 200, the circuit where the positioning probe 100 and the alignment detection circuit are located is not conductive, and the signal lamp 104 is not lit; when the positioning probe 100 contacts the positioning conductive part 200, a circuit in which the positioning probe 100 and the alignment detection circuit are located is conducted, and the signal lamp 104 is turned on. Namely, the setting of the signal lamp 104 can easily make the tester judge the current positioning situation.
Further, referring to fig. 1, the detecting device 10 includes at least two positioning probes 100, the display element 20 includes at least two positioning conductive portions 200, the at least two positioning probes 100 are respectively in one-to-one alignment contact with the at least two positioning conductive portions 200 (as shown in fig. 2), and the alignment detecting circuit is specifically configured to detect whether a conductive loop is formed between the at least two positioning probes 100, and generate an alignment failure message when the conductive loop is not formed. By the design of at least two positioning probes 100, the positioning detection result in the detection device 10 can be more accurate.
Referring to fig. 1 and fig. 2, a plurality of conductive portions 202 to be tested are disposed at intervals along a first direction X at an edge of one side of a panel 204 of the display module 20. Correspondingly, the detecting device 10 provided by the present application further includes a testing board 106, and a plurality of testing probes 108 arranged at intervals along the first direction X are disposed on the testing board 106. The plurality of test probes 108 are configured to correspond to and contact the plurality of conductive portions 202 to be tested one to one. The signal generating mechanism 102 in the inspection apparatus 10 is electrically connected to the plurality of test probes 108, and the signal generating mechanism 102 can provide a lighting signal to the corresponding conductive part to be inspected 202 through the plurality of test probes 108, thereby realizing lighting inspection of the display module 20. Of course, the lighting detection process needs to be established based on the success of the positioning detection process.
The positioning conductive part 200 and the conductive parts to be tested 202 are fixed relatively in the first direction X and located on the same side surface of the panel body 20, a length L1 of the positioning conductive part 200 perpendicular to the first direction X is less than or equal to a length L2 of the conductive part to be tested 202, and a width (not shown) of the positioning conductive part 200 in the first direction X is less than or equal to a width (not shown) of the conductive part to be tested 200. When the length and width are designed, the positioning probe 100 and the positioning conductive part 200 can be positioned successfully, and the test probe 100 and the conductive part 202 to be tested can be ensured to be contacted in the subsequent test process, so as to improve the accuracy of the positioning test result and the lighting test result.
Correspondingly, the positioning probe 100 and the plurality of test probes 108 are fixed in the first direction X, and have the same orientation, that is, the positioning probe 100 and the plurality of test probes 108 are also fixed on the same side surface of the test board 106. The end a of the positioning probe 100 is retractable and extends beyond the end B of the test probe 108 in its natural state. That is, in the natural state, first spacing d1 between ends A of positioning probes 100 and test plate 106 is greater than second spacing d2 between ends B of test probes 108 and test plate 106. This design can make during the positioning detection process of utilizing positioning probe 100, test probe 108 can not contact display element 20, and then reduces the damage of test probe 108 to display element 20 in the positioning process.
In addition, with reference to fig. 2, the conductive parts to be tested 202 include a first conductive part to be tested 2020 and a tail conductive part to be tested 2022 located in the first direction X, wherein one positioning conductive part 200 is located near the first conductive part to be tested 2020, and one positioning conductive part 200 is located near the tail conductive part to be tested 2022; for example, one of the positioning conductive parts 200 is located on the side of the conductive part to be tested 2020 at the head end away from the conductive part to be tested 2022 at the tail end, and one of the positioning conductive parts 200 is located on the side of the conductive part to be tested 2022 at the tail end away from the conductive part to be tested 2020 at the head end. The design method can effectively monitor the offset condition of all the conductive parts 202 to be detected in the first direction X, so as to improve the accuracy of the positioning detection result. Correspondingly, as shown in fig. 1, the plurality of test probes 108 includes a head-end test probe 1080 and a tail-end test probe 1082 located in the first direction X, wherein one of the positioning probes 100 is located at a side of the head-end test probe 1080 away from the tail-end test probe 1082, and one of the positioning probes 100 is located at a side of the tail-end test probe 1082 away from the head-end test probe 1080.
Preferably, in the present embodiment, the display device 20 includes two positioning conductive parts 200, the two positioning conductive parts 200 are respectively located at a side of the conductive part 2020 to be tested at the head end away from the conductive part 2022 to be tested at the tail end, and a side of the conductive part 2022 to be tested at the tail end away from the conductive part 2020 to be tested at the head end; and the two positioning conductive parts 200 are electrically connected through the circuit 206 inside the display component 20, and the central point connecting line of the two positioning conductive parts 200 can be superposed with the central point connecting lines of all conductive parts 2020 to be tested. Correspondingly, the detection apparatus 10 includes two positioning probes 100, and the orthographic projections of the two positioning probes 100 and all the test probes 108 on the test board 106 are on the same straight line; the two positioning probes 100 are electrically connected to the alignment detection circuit through wires. When the two positioning probes 100 are aligned and contacted with the two positioning conductive parts 200 at the corresponding positions, the two positioning probes 100, the two positioning conductive parts 200 and the circuit where the alignment detection circuit is located are conducted. Of course, in other embodiments, one or more positioning conductive parts 200 may be additionally added on the basis of the two positioning conductive parts 200.
In addition, the above-mentioned test probes 108 and positioning probes 100 are detachably fixed on the test board 106. Test probes 108 or position probes 100 can be easily removed from test plate 106 and replaced when they need to be replaced.
Further, the detecting device 10 provided by the present application further includes a driving assembly (not shown), which may include a driving portion for driving the test board 106 to move and a driving source for driving the driving portion to move. The driving component is mainly used for driving the testing board 106 to be close to the display component 20 to be tested, and when the alignment detection circuit generates alignment failure information, the driving of the testing board 106 to be close to the display component 20 to be tested is stopped, so that the testing probe 108 cannot contact the display component 20 to be tested. This design can ensure that the test probe 108 does not contact the display device 20 to be tested when the alignment is unsuccessful, so as to reduce the damage to the display device 20 to be tested.
Optionally, in this embodiment, the positioning probe 100 and the test probe 108 are both spring needles, i.e. have a scalability, and the length of the positioning probe 100 after being completely compressed is smaller than or equal to the length of the test probe 108 after being completely compressed. The design method can ensure that when the alignment is successful, the driving component can directly drive the test board 106 to continuously approach the display component 20 without removing the positioning probe 100, so as to carry out the lighting test process; moreover, the positioning probe 100 has a strong scalability, so that the positioning probe 100 does not block the pressing process of the driving component, thereby improving the lighting test efficiency.
The detection device 10 and the display module 20 are further described below with a specific lighting test procedure. Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of an embodiment of a process of positioning and detecting the display device in fig. 1 and fig. 2, and fig. 4 is a schematic structural diagram of an embodiment of a process of lighting the display device in fig. 1 and fig. 2.
First, a driving component (not shown) in the inspection apparatus 10 moves the position of the test board 106 according to an initial positioning instruction, so that the test board 106 is disposed opposite to the display component 20 to be tested, and the test probes 108 and the positioning probes 100 on the test board 106 face the display component 20;
then, the driving component drives the testing board 106 to move a first preset distance towards the display component 20 to be tested along the vertical direction, and the first preset distance can be set according to the actual situation as long as it is ensured that the positioning probe 100 can contact the display component 20 at this time, but the testing probe 108 does not contact the display component 20; if the positioning probe 100 contacts the positioning conductive part (not shown in fig. 3), it indicates that the alignment between the detection device 10 and the display module 20 is successful, and specifically, the determination may be made according to the signal lamp 104 in the detection device 10; otherwise, the driving component drives the testing board 106 to move up and the positioning process is performed again until the alignment between the detecting device 10 and the display component 20 is successful.
Finally, the driving component continues to drive the testing board 106 to move towards the display component 20 to be tested by a second preset distance along the vertical direction, the testing probe 108 can contact with the conductive part to be tested (not shown in fig. 4) at the corresponding position, and the signal generating mechanism 102 in the detecting device 10 provides the lighting test signal to perform the lighting test process.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.
Claims (10)
1. A detection apparatus for a display assembly, comprising:
a registration detection circuit;
the positioning probe is electrically connected with the alignment detection circuit and is used for aligning and contacting with a positioning conductive part on the display component to be detected;
after the positioning probe is aligned and contacted with the positioning conductive part, if the positioning probe is not contacted with the positioning conductive part, the alignment detection circuit generates alignment failure information.
2. The detection apparatus according to claim 1,
the alignment detection circuit is specifically configured to detect whether a conductive loop is formed between the at least two positioning probes, and when the conductive loop is not formed, the alignment failure information is generated.
3. The detection device of claim 2, further comprising:
the test board is provided with a plurality of test probes which are arranged at intervals along a first direction;
the positioning probes and the plurality of test probes are relatively fixed in the first direction and have the same orientation, and the tail ends of the positioning probes are telescopic and exceed the tail ends of the test probes in the natural state.
4. The detection device of claim 3, further comprising:
and the driving component is used for driving the test board to be close to the display component to be tested and stopping driving the test board to be close to the display component to be tested when the alignment detection circuit generates alignment failure information, so that the test probe cannot contact the display component to be tested.
5. The detection apparatus according to claim 4,
the positioning probe and the test probe are spring needles, and the length of the positioning probe after being completely compressed is smaller than or equal to the length of the test probe after being completely compressed.
6. The detection apparatus according to claim 3,
the plurality of test probes comprise a head end test probe and a tail end test probe which are positioned in the first direction, one of the positioning probes is positioned on the side of the head end test probe far away from the tail end test probe, and the other positioning probe is positioned on the side of the tail end test probe far away from the head end test probe.
7. The detection device of claim 1, further comprising:
and the signal lamp is electrically connected between the positioning probe and the alignment detection circuit and is used for indicating whether alignment fails or not.
8. A display assembly, comprising:
the screen body is provided with a positioning conductive part at one side edge and is used for aligning and contacting with a positioning probe on the detection device;
after the positioning probe is aligned and contacted with the positioning conductive part, if the positioning probe is not contacted with the positioning conductive part, an alignment detection circuit electrically connected with the positioning probe in the detection device generates alignment failure information.
9. The display assembly of claim 8,
the number of the positioning conductive parts is at least two, and at least part of the positioning conductive parts are electrically connected and are used for being respectively in one-to-one alignment contact with at least two positioning probes.
10. The display assembly of claim 9,
the side edge of the screen body is also provided with a plurality of conductive parts to be tested which are distributed at intervals along a first direction; the positioning conductive part and the conductive parts to be tested are relatively fixed in the first direction and are positioned on the same side surface of the screen body; the length of the positioning conductive part in the direction perpendicular to the first direction is smaller than or equal to the length of the conductive part to be tested, and the width of the positioning conductive part in the first direction is smaller than or equal to the width of the conductive part to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011405829.1A CN112599057A (en) | 2020-12-02 | 2020-12-02 | Detection device for display assembly and display assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011405829.1A CN112599057A (en) | 2020-12-02 | 2020-12-02 | Detection device for display assembly and display assembly |
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| Publication Number | Publication Date |
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| CN112599057A true CN112599057A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011405829.1A Pending CN112599057A (en) | 2020-12-02 | 2020-12-02 | Detection device for display assembly and display assembly |
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| CN (1) | CN112599057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113676584A (en) * | 2021-10-22 | 2021-11-19 | 深圳市伟盛丰科技有限公司 | Automatic mobile phone display screen lighting test device |
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