CN113570988A - Liquid crystal display panel electrostatic discharge test system and test method - Google Patents
Liquid crystal display panel electrostatic discharge test system and test method Download PDFInfo
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- 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
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Abstract
The invention discloses a liquid crystal display panel electrostatic discharge test system and a method, which comprises a multi-degree-of-freedom mechanical arm, an electrostatic gun, a test table, a panel fixing mechanism, a first camera shooting mechanism, a second camera shooting mechanism, a static elimination mechanism and a control terminal, wherein the panel fixing mechanism is arranged on a table top of the test table, a transparent window is arranged on the table top of the test table, the first camera shooting mechanism and the second camera shooting mechanism are fixed on the test table, the static elimination mechanism is arranged on the table top, the electrostatic gun is fixed on the multi-degree-of-freedom mechanical arm, the electrostatic gun, the first camera shooting mechanism, the second camera shooting mechanism and the static elimination mechanism are all in communication connection with the control terminal, and an optical automatic detection algorithm is embedded in the control terminal and used for automatically judging and identifying the picture quality of a liquid crystal display panel. The test method is executed based on a test system. It has the following advantages: the static electricity automatic test of the liquid crystal display panel is realized, the consistency of the test result is high, the accuracy is high, and the test efficiency is high.
Description
Technical Field
The invention relates to the field of liquid crystal display panel testing, in particular to a liquid crystal display panel electrostatic discharge testing system and method.
Background
ESD immunity testing of electronic devices is listed as an important part of electromagnetic compatibility testing of electronic devices in national and international standards. In the current ESD test work in the microelectronic industry, operators mainly hold an electrostatic gun to perform dotting and visually observe the test process and artificially make a judgment result, the consistency and accuracy of the test result are influenced by artificially judging the difference to a certain extent, and the improvement of the test efficiency is greatly hindered. With the wide application of industrial robots in various production fields, the development of automatic research on ESD tests has great economic value and practical significance for improving the working efficiency and promoting the transformation and upgrading of the electronic product ESD industry. Because the ESD test of the liquid crystal display panel needs to be carried out after the ESD test is installed and lightened on the jig, an operator needs to hold the electrostatic gun, the discharge is carried out in sequence according to the preset point positions, the display condition of the panel is observed and recorded after the discharge each time, the residual static electricity needs to be eliminated, and the discharge of the next point position is continued. The above process is easy to cause fatigue of the arms and the vision of the personnel, and the accuracy and the testing efficiency of the testing result are seriously influenced.
The Chinese invention patent 201710354459.5 provides a test fixture for detecting defects of a mobile phone liquid crystal screen, which realizes automatic clamping of the mobile phone liquid crystal screen, but fails to realize automation of the whole test process, is only suitable for clamping of the mobile phone screen, and has a narrow application range. Chinese invention patent 202010442467.7 proposes an electrostatic test method and test device, which only realizes the electrostatic test when the display device is initialized, and the electrostatic discharge (ESD) test process is not complete enough.
Disclosure of Invention
The invention provides a liquid crystal display panel electrostatic discharge test system and a method thereof, which overcome the defects of the prior art in the background art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the liquid crystal display panel electrostatic discharge test system comprises a multi-degree-of-freedom mechanical arm, an electrostatic gun, a test table, a panel fixing mechanism, a first camera shooting mechanism, a second camera shooting mechanism, an electrostatic eliminating mechanism and a control terminal, wherein the panel fixing mechanism is arranged on the table top of the test table, a transparent window is arranged at the position of the table top of the test table corresponding to the panel fixing mechanism, the first camera shooting mechanism and the second camera shooting mechanism are fixed on the test table and used for acquiring the picture image of the display panel, the electrostatic eliminating mechanism is arranged on the table top and used for eliminating the static electricity on the display panel and the electrostatic gun, the electrostatic gun is fixed on the multi-degree-of-freedom mechanical arm and driven by the multi-degree-of-freedom mechanical arm to move, the multi-degree-of-freedom mechanical arm, the electrostatic gun, the first camera shooting mechanism, the second camera shooting mechanism and the electrostatic eliminating mechanism are all in communication connection with the control terminal, and an optical automatic detection algorithm is embedded in the control terminal, the method is used for automatically judging and identifying the picture quality of the liquid crystal display panel.
In one embodiment: the panel fixing mechanism comprises an L-shaped fixing frame and a positioning sliding block, the L-shaped fixing frame is fixed on the desktop of the test table, the positioning sliding block is in sliding connection with one wall of the L-shaped fixing frame to form a door-shaped frame used for fixing the liquid crystal display panel, and the transparent window is located below the door-shaped frame.
In one embodiment: this first camera mechanism includes first camera and first regulation support, and the one end and the test table fixed connection and the other end of this first regulation support rotate with first camera to be connected, and this first regulation support is link mechanism support.
In one embodiment: the second camera shooting mechanism comprises a second camera and a second adjusting support, one end of the second adjusting support is fixedly connected with the test table, the other end of the second adjusting support is rotatably connected with the second camera, and the second adjusting support is a link mechanism support.
In one embodiment: the first camera and the second camera are respectively positioned above and below the desktop of the test table.
In one embodiment: the static electricity removing mechanism comprises a static electricity removing brush, a motor, a synchronous belt, two guide wheels and a guide rod, wherein an output shaft of the motor is in transmission connection with one guide wheel, the synchronous belt is wound and stretched on the two guide wheels, the guide rod is fixedly arranged on the desktop of the test table, the static electricity removing brush is in sliding connection with the guide rod, the moving direction of the synchronous belt is in the same direction as the length direction of the guide rod, and the static electricity removing brush is connected with the synchronous belt and driven by the synchronous belt to move along the length direction of the guide rod.
In one embodiment: the static electricity removing mechanism is arranged on one side of the panel fixing mechanism, and the static electricity removing brush is positioned above the panel fixing mechanism.
In one embodiment: the transparent window is a transparent glass window.
The liquid crystal display panel electrostatic discharge test method is based on the liquid crystal display panel electrostatic discharge test system and comprises the following test steps:
1) initializing after the device is started; the multi-degree-of-freedom mechanical arm brings the static and dynamic electric guns to move to an initial position; the liquid crystal display panel to be tested is fixed on the panel fixing mechanism by a tester, the front side of the liquid crystal display panel to be tested faces upwards, and the tester energizes the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
2) starting detection; the multi-degree-of-freedom mechanical arm drives the static gun to move to a point to be measured, the static gun discharges electricity to the front of the liquid crystal display panel, the first camera acquires a display picture of the liquid crystal display panel and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if not, the multi-degree-of-freedom mechanical arm moves to the initial position, and the program is ended; if the program is qualified, the program continues to run;
3) the static removing mechanism works, and a static removing brush of the static removing mechanism sweeps the liquid crystal display panel and the gun head of the static gun to remove residual static electricity;
4) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm moves to the next test point to be tested, and the steps 2), 3) and 4) are repeated; if so, the multi-degree-of-freedom mechanical arm returns to the initial position, and the procedure is ended.
The front surface of the liquid crystal display panel is a picture display surface, and the back surface of the liquid crystal display panel is a non-picture display surface.
An automatic testing method for electrostatic discharge of a liquid crystal display panel is based on the electrostatic discharge testing system of the liquid crystal display panel and comprises the following testing steps:
1) initializing after the device is started; the multi-degree-of-freedom mechanical arm brings the static and dynamic electric guns to move to an initial position; the liquid crystal display panel to be tested is fixed on the panel fixing mechanism by a tester, the front side of the liquid crystal display panel to be tested faces upwards, and the tester energizes the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
2) starting front detection; the multi-degree-of-freedom mechanical arm drives the static gun to move to a point to be measured, the static gun discharges electricity to the front of the liquid crystal display panel, the first camera acquires a display picture of the liquid crystal display panel and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if not, the multi-degree-of-freedom mechanical arm moves to the initial position, and the program is ended; if the program is qualified, the program continues to run;
3) the static removing mechanism works, and a static removing brush of the static removing mechanism sweeps the liquid crystal display panel and the gun head of the static gun to remove residual static electricity;
4) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm moves to the next test point to be tested, and the steps 2), 3) and 4) are repeated; if so, returning the multi-degree-of-freedom mechanical arm to the initial position, and pausing the program;
5) the liquid crystal display panel to be tested is fixed on the panel fixing mechanism by a tester, the back of the liquid crystal display panel to be tested faces upwards, and the tester energizes the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
6) starting back detection; the multi-degree-of-freedom mechanical arm drives the static gun to move to a point to be measured, and the static gun discharges to the back of the liquid crystal display panel;
7) the second camera acquires a display picture of the liquid crystal display panel from the lower part of the test table through the transparent window and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if not, the multi-degree-of-freedom mechanical arm moves to the initial position, and the program is ended; if the program is qualified, the program continues to run;
8) the static removing mechanism works, and a static removing brush of the static removing mechanism sweeps the liquid crystal display panel and the gun head of the static gun to remove residual static electricity;
9) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm moves to the next test point to be tested, and the steps 6-9) are repeated; if so, the multi-degree-of-freedom mechanical arm returns to the initial position, and the program is ended;
the front surface of the liquid crystal display panel is a picture display surface, and the back surface of the liquid crystal display panel is a non-picture display surface.
Compared with the background technology, the technical scheme has the following advantages:
1. the liquid crystal display panel's automatic testing arrangement of static can replace artifical realization to hold the static rifle to discharge, catch the liquid crystal display panel and show the action of picture condition and judgement display quality, solve artifical static low in efficiency and the poor, the poor problem of accuracy of test result uniformity, can realize liquid crystal display panel's automatic test of static promptly based on the device, the test result uniformity is high, the accuracy is high, the efficiency of software testing is high.
2. The testing device is simple in structure and reliable in performance, and can realize automatic static testing of the display panel.
3. The method for automatically testing the static electricity of the liquid crystal display panel is realized based on the testing device, and a tester only needs to clamp and disassemble the liquid crystal display panel and set system parameters on the control terminal, so that the automatic testing of the static electricity discharge of the liquid crystal display panel can be realized. The whole testing steps are reasonable, and better testing efficiency is guaranteed.
4. Through set up transparent window on the test table, display panel's when conveniently directly obtaining the back test through the second camera below the test table picture image, it is more convenient that the operation is got up, and system architecture obtains further simplification.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of an electrostatic discharge testing system for a liquid crystal display panel.
Fig. 2 is a partially enlarged schematic view of fig. 1.
Detailed Description
Referring to fig. 1 and 2, the electrostatic discharge testing system for the liquid crystal display panel includes a multi-degree-of-freedom mechanical arm 1, an electrostatic gun 2, a testing table 3, a panel fixing mechanism 4, a first camera mechanism 5, a second camera mechanism 6, a static eliminating mechanism 7, and a control terminal (not shown in the figure), where the control terminal is an intelligent device with a processor, such as a computer, a central control computer, an embedded system device, and the like.
The panel fixing mechanism 4 is disposed on the desktop of the testing table 3, and a transparent window 31 is disposed at a position of the desktop of the testing table 3 corresponding to the panel fixing mechanism 4, in this embodiment, the transparent window 31 is a transparent glass window. The panel fixing mechanism 4 includes an L-shaped fixing frame 41 and a positioning slider 42, the L-shaped fixing frame 41 is fixed on the desktop of the testing table 3, the positioning slider 42 is slidably connected with one of the walls of the L-shaped fixing frame 41 to form a door-shaped frame for fixing the liquid crystal display panel, the transparent window 31 is located below the door-shaped frame, and the display frame of the liquid crystal display panel located on the panel fixing mechanism 4 can be observed from below the testing table 3 through the transparent window 31 (at this time, the display frame of the liquid crystal display panel is downward). The liquid crystal display panel to be tested is arranged in the range limited by the L-shaped fixed frame 41 and the positioning slide block 42, and the relative position of the positioning slide block 42 and the L-shaped fixed frame 41 is locked by a bolt so as to clamp the liquid crystal display panel.
This first camera mechanism 5 and second camera mechanism 6 are fixed in on the test table 3 and are used for acquireing display panel's picture image, this first camera mechanism 5 includes first camera 51 and first regulation support 52, the one end and the test table 3 fixed connection and the other end of this first regulation support 52 rotate with first camera 51 to be connected, this first regulation support 52 is the link mechanism support, can adjust the position that first camera 51 was located through first regulation support 52, this first camera 51 is located the top of test table 3 desktop and is used for acquireing the picture image of liquid crystal display panel picture when up.
This second camera mechanism 6 includes second camera 61 and second regulation support 62, and this second regulation support 62's one end and test table 3 fixed connection and the other end rotate with second camera 61 to be connected, and this second regulation support 62 is the link mechanism support. The second adjusting bracket 62 is a link mechanism bracket, the position of the second camera 61 can be adjusted by the first adjusting bracket 52, and the second camera 61 is located below the desktop of the test table 3 and is used for acquiring a picture image when the picture of the liquid crystal display panel faces downward.
The electrostatic gun 2 is fixed on the multi-degree-of-freedom mechanical arm 1 and driven by the multi-degree-of-freedom mechanical arm 1 to move, the discharge types of the electrostatic gun 2 include contact type discharge and non-contact type discharge, and the minimum instantaneous discharge voltage is +/-2 KV, and the maximum instantaneous discharge voltage is +/-30 KV. The multi-degree-of-freedom mechanical arm 1, the electrostatic gun 2, the first camera shooting mechanism 5 and the second camera shooting mechanism 6 are all in communication connection with a control terminal, an optical automatic detection Algorithm (AOI) is embedded into the control terminal and used for automatically judging and identifying the picture quality of the liquid crystal display panel and used as a judgment basis for judging whether the static test of the display panel is qualified or not, and the automatic detection algorithm is any algorithm capable of detecting the picture quality in the scheme. The control terminal can display the picture of the liquid crystal display panel, and a worker can select the dotting point position of the static test and the discharge frequency of each point position by clicking the picture through a mouse.
The static electricity removing mechanism 7 is arranged on a desktop and used for removing static electricity on the display panel and the static electricity gun 2, the static electricity removing mechanism 7 comprises a static electricity removing brush 71, a motor 72, a synchronous belt 73, two guide wheels (not shown in the figure) and a guide rod 74, an output shaft of the motor 72 is in transmission connection with one guide wheel, the synchronous belt 73 is wound and tensioned on the two guide wheels, the guide rod 74 is fixedly arranged on the desktop of the test desk 3, the static electricity removing brush 71 is in sliding connection with the guide rod 74, the moving direction of the synchronous belt 73 is the same direction as the length direction of the guide rod 74, and the static electricity removing brush 71 is connected with the synchronous belt 73 and driven by the synchronous belt 73 to move along the length direction of the guide rod 74. The static eliminating mechanism 7 is provided on one side of the panel fixing mechanism 4 and the static eliminating brush 71 is located above the panel fixing mechanism 4. The motor 72 drives the synchronous belt 73 to move, the synchronous belt 73 drives the static removing brush 71 to move along the length direction of the guide rod 74, and meanwhile, the static removing brush sweeps the liquid crystal display panel and the gun head of the static gun 2 to contact with the liquid crystal display panel and the gun head of the static gun 2, and static electricity on the liquid crystal display panel can be removed after the static removing mechanism 7 is connected with a ground wire and is contacted with the liquid crystal display panel to be detected and the gun head of the static gun 2.
The liquid crystal display panel electrostatic discharge test method realizes the front discharge test of the liquid crystal display panel, and based on the liquid crystal display panel electrostatic discharge test system, the method comprises the following test steps:
1) initializing after the device is started; the multi-degree-of-freedom mechanical arm 1 with the static and dynamic electric guns 2 moves to an initial position; the tester fixes the liquid crystal display panel to be tested on the panel fixing mechanism 4, the initial position of the panel fixing mechanism 4 is horizontally placed against the desktop of the test table 3, and the tester powers on the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; the method comprises the following steps that a tester sets system parameters on a control terminal, wherein the system parameters comprise a movement track parameter of a multi-degree-of-freedom mechanical arm 1, a discharge parameter of an electrostatic gun 2 and the like;
2) starting detection; the multi-degree-of-freedom mechanical arm 1 drives the static gun 2 to move to a point to be measured, the static gun 2 discharges electricity to the liquid crystal display panel, the first camera 51 obtains a display picture of the liquid crystal display panel and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if the multi-degree-of-freedom mechanical arm is not qualified, the multi-degree-of-freedom mechanical arm 1 moves to an initial position, and the program is ended; if the program is qualified, the program continues to run;
3) the static removing mechanism 7 works, and the static removing brush 71 of the static removing mechanism 7 sweeps the liquid crystal display panel and the gun head of the static gun 2 to remove residual static electricity;
4) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm 1 moves to the next test point to be tested, and the steps 2), 3) and 4) are repeated; if so, the multi-degree-of-freedom mechanical arm 1 returns to the initial position, and the process is ended.
The front surface of the liquid crystal display panel is a picture display surface, and the back surface of the liquid crystal display panel is a non-picture display surface.
The liquid crystal display panel electrostatic discharge test method realizes the front discharge test and the back discharge test of the liquid crystal display panel, and based on the liquid crystal display panel electrostatic discharge test system, the method comprises the following test steps:
1) initializing after the device is started; the multi-degree-of-freedom mechanical arm 1 with the static and dynamic electric guns 2 moves to an initial position; the tester fixes the liquid crystal display panel to be tested on the panel fixing mechanism 4, the initial position of the panel fixing mechanism 4 is horizontally placed against the desktop of the test table 3, and the tester powers on the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
2) starting front detection; the multi-degree-of-freedom mechanical arm 1 is used for driving the static gun 2 to move to a point to be measured, the static gun 2 discharges electricity to the liquid crystal display panel, the first camera 51 acquires a display picture of the liquid crystal display panel (the picture faces the first camera 51 at the moment) and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if the multi-degree-of-freedom mechanical arm is not qualified, the multi-degree-of-freedom mechanical arm 1 moves to an initial position, and the program is ended; if the program is qualified, the program continues to run;
3) the static removing mechanism 7 works, and the static removing mechanism 7 sweeps the liquid crystal display panel and the gun head of the static gun 2 to remove residual static electricity;
4) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm 1 moves to the next test point to be tested, and the steps 2), 3) and 4) are repeated; if so, returning the multi-degree-of-freedom mechanical arm to the initial position, and pausing the program;
5) the liquid crystal display panel to be tested is fixed on the panel fixing mechanism 4 by a tester, the back of the liquid crystal display panel to be tested faces upwards, and the liquid crystal display panel to be tested is electrified by the tester to work normally; a tester sets system parameters on a control terminal;
6) starting back detection; the multi-degree-of-freedom mechanical arm 1 is used for driving the static gun 2 to move to a point to be tested, and the static gun 2 discharges to the back of the liquid crystal display panel;
7) the second camera 61 obtains a display picture (at this time, the picture is downward) of the liquid crystal display panel from the lower part of the test table through the transparent window and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if the multi-degree-of-freedom mechanical arm is not qualified, the multi-degree-of-freedom mechanical arm 1 moves to an initial position, and the program is ended; if the program is qualified, the program continues to run;
8) the static removing mechanism 7 works, and the static removing brush 71 of the static removing mechanism 7 sweeps the liquid crystal display panel and the gun head of the static gun 2 to remove residual static electricity;
9) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm 1 moves to the next test point to be tested, and the steps 6) -11) are repeated; if so, the multi-degree-of-freedom mechanical arm 1 returns to the initial position, and the process is ended.
The front surface of the liquid crystal display panel is a picture display surface, and the back surface of the liquid crystal display panel is a non-picture display surface.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. The liquid crystal display panel electrostatic discharge test system is characterized in that: comprises a multi-degree-of-freedom mechanical arm, an electrostatic gun, a test table, a panel fixing mechanism, a first camera shooting mechanism, a second camera shooting mechanism, a static electricity removing mechanism and a control terminal, the panel fixing mechanism is arranged on the desktop of the test table, a transparent window is arranged on the desktop of the test table corresponding to the panel fixing mechanism, the first camera shooting mechanism and the second camera shooting mechanism are fixed on the test table and are used for acquiring the picture images of the display panel, the static electricity removing mechanism is arranged on the desktop and used for removing static electricity on the display panel and the static electricity gun, the static electricity gun is fixed on the multi-degree-of-freedom mechanical arm and driven by the multi-degree-of-freedom mechanical arm to move, the multi-degree-of-freedom mechanical arm, the electrostatic gun, the first camera shooting mechanism, the second camera shooting mechanism and the static eliminating mechanism are all in communication connection with a control terminal, the control terminal is embedded with an optical automatic detection algorithm for automatically judging and identifying the picture quality of the liquid crystal display panel.
2. The electrostatic discharge test system for liquid crystal display panel according to claim 1, wherein: the panel fixing mechanism comprises an L-shaped fixing frame and a positioning sliding block, the L-shaped fixing frame is fixed on the desktop of the test table, the positioning sliding block is in sliding connection with one wall of the L-shaped fixing frame to form a door-shaped frame used for fixing the liquid crystal display panel, and the transparent window is located below the door-shaped frame.
3. The electrostatic discharge test system for liquid crystal display panel according to claim 1, wherein: this first camera mechanism includes first camera and first regulation support, and the one end and the test table fixed connection and the other end of this first regulation support rotate with first camera to be connected, and this first regulation support is link mechanism support.
4. The electrostatic discharge test system for liquid crystal display panel according to claim 3, wherein: the second camera shooting mechanism comprises a second camera and a second adjusting support, one end of the second adjusting support is fixedly connected with the test table, the other end of the second adjusting support is rotatably connected with the second camera, and the second adjusting support is a link mechanism support.
5. The electrostatic discharge test system for liquid crystal display panel according to claim 4, wherein: the first camera and the second camera are respectively positioned above and below the desktop of the test table.
6. The electrostatic discharge test system for liquid crystal display panel according to claim 5, wherein: the static electricity removing mechanism comprises a static electricity removing brush, a motor, a synchronous belt, two guide wheels and a guide rod, wherein an output shaft of the motor is in transmission connection with one guide wheel, the synchronous belt is wound and stretched on the two guide wheels, the guide rod is fixedly arranged on the desktop of the test table, the static electricity removing brush is in sliding connection with the guide rod, the moving direction of the synchronous belt is in the same direction as the length direction of the guide rod, and the static electricity removing brush is connected with the synchronous belt and driven by the synchronous belt to move along the length direction of the guide rod.
7. The electrostatic discharge test system for liquid crystal display panel according to claim 6, wherein: the static electricity removing mechanism is arranged on one side of the panel fixing mechanism, and the static electricity removing brush is positioned above the panel fixing mechanism.
8. The electrostatic discharge test system for liquid crystal display panel according to claim 1, wherein: the transparent window is a transparent glass window.
9. The liquid crystal display panel electrostatic discharge test system is characterized in that: the liquid crystal display panel electrostatic discharge test system according to any one of claims 1 to 8, comprising the following test steps:
1) initializing after the device is started; the multi-degree-of-freedom mechanical arm brings the static and dynamic electric guns to move to an initial position; the liquid crystal display panel to be tested is fixed on the panel fixing mechanism by a tester, the front side of the liquid crystal display panel to be tested faces upwards, and the tester energizes the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
2) starting detection; the multi-degree-of-freedom mechanical arm drives the static gun to move to a point to be measured, the static gun discharges electricity to the front of the liquid crystal display panel, the first camera acquires a display picture of the liquid crystal display panel and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if not, the multi-degree-of-freedom mechanical arm moves to the initial position, and the program is ended; if the program is qualified, the program continues to run;
3) the static removing mechanism works, and a static removing brush of the static removing mechanism sweeps the liquid crystal display panel and the gun head of the static gun to remove residual static electricity;
4) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm moves to the next test point to be tested, and the steps 2), 3) and 4) are repeated; if so, the multi-degree-of-freedom mechanical arm returns to the initial position, and the procedure is ended.
The front surface of the liquid crystal display panel is a picture display surface, and the back surface of the liquid crystal display panel is a non-picture display surface.
10. The liquid crystal display panel electrostatic discharge test method is characterized in that: the liquid crystal display panel electrostatic discharge test system according to any one of claims 1 to 8, comprising the following test steps:
1) initializing after the device is started; the multi-degree-of-freedom mechanical arm brings the static and dynamic electric guns to move to an initial position; the liquid crystal display panel to be tested is fixed on the panel fixing mechanism by a tester, the front side of the liquid crystal display panel to be tested faces upwards, and the tester energizes the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
2) starting front detection; the multi-degree-of-freedom mechanical arm drives the static gun to move to a point to be measured, the static gun discharges electricity to the front of the liquid crystal display panel, the first camera acquires a display picture of the liquid crystal display panel and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if not, the multi-degree-of-freedom mechanical arm moves to the initial position, and the program is ended; if the program is qualified, the program continues to run;
3) the static removing mechanism works, and a static removing brush of the static removing mechanism sweeps the liquid crystal display panel and the gun head of the static gun to remove residual static electricity;
4) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm moves to the next test point to be tested, and the steps 2), 3) and 4) are repeated; if so, returning the multi-degree-of-freedom mechanical arm to the initial position, and pausing the program;
5) the liquid crystal display panel to be tested is fixed on the panel fixing mechanism by a tester, the back of the liquid crystal display panel to be tested faces upwards, and the tester energizes the liquid crystal display panel to be tested to enable the liquid crystal display panel to work normally; a tester sets system parameters on a control terminal;
6) starting back detection; the multi-degree-of-freedom mechanical arm drives the static gun to move to a point to be measured, and the static gun discharges to the back of the liquid crystal display panel;
7) the second camera acquires a display picture of the liquid crystal display panel from the lower part of the test table through the transparent window and transmits the display picture to the control terminal, and the control terminal judges the quality of the display picture and gives a judgment result; if not, the multi-degree-of-freedom mechanical arm moves to the initial position, and the program is ended; if the program is qualified, the program continues to run;
8) the static removing mechanism works, and a static removing brush of the static removing mechanism sweeps the liquid crystal display panel and the gun head of the static gun to remove residual static electricity;
9) the system judges whether the test point is the last test point, if not, the multi-degree-of-freedom mechanical arm moves to the next test point to be tested, and the steps 6-9) are repeated; if so, the multi-degree-of-freedom mechanical arm returns to the initial position, and the program is ended;
the front surface of the liquid crystal display panel is a picture display surface, and the back surface of the liquid crystal display panel is a non-picture display surface.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814557A (en) * | 2022-05-24 | 2022-07-29 | 上海晶岳电子有限公司 | Electrostatic gun and method for performing electrostatic discharge test by using same |
| CN114966262A (en) * | 2022-04-20 | 2022-08-30 | 荣耀终端有限公司 | Anti-interference testing device and anti-interference testing method |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM277926U (en) * | 2005-03-18 | 2005-10-11 | Taichy Technology Ltd | Improved trolley structure for liquid crystal display test equipment |
| CN201698708U (en) * | 2010-05-11 | 2011-01-05 | 福建捷联电子有限公司 | Protective fixture of liquid crystal displayer panel |
| CN203288214U (en) * | 2013-04-24 | 2013-11-13 | 四川虹视显示技术有限公司 | OLED detecting device |
| CN103713206A (en) * | 2012-09-28 | 2014-04-09 | 名硕电脑(苏州)有限公司 | Capacitor touch screen automatic test device |
| CN104391206A (en) * | 2014-12-04 | 2015-03-04 | 昆山精讯电子技术有限公司 | OLED panel test device |
| CN106249085A (en) * | 2016-08-30 | 2016-12-21 | 京东方科技集团股份有限公司 | Static discharge detection method and system |
| CN205910266U (en) * | 2016-06-21 | 2017-01-25 | 深圳天珑无线科技有限公司 | A testing arrangement for testing mobile terminal static |
| CN206020642U (en) * | 2016-07-12 | 2017-03-15 | 国网天津市电力公司 | A kind of 500kV mutual inductor on site verifying attachments of the visual voltage regulation function of band |
| CN108519534A (en) * | 2018-05-30 | 2018-09-11 | 南昌华勤电子科技有限公司 | Electrostatic discharge testing system |
| CN208109985U (en) * | 2018-01-12 | 2018-11-16 | 普联技术有限公司 | A kind of static discharge detection device |
| CN108845196A (en) * | 2018-04-16 | 2018-11-20 | 上海与德通讯技术有限公司 | A kind of automatic electrostatic test system |
| CN110808001A (en) * | 2019-11-29 | 2020-02-18 | 北京兆维电子(集团)有限责任公司 | OLED panel display defect detection equipment |
-
2021
- 2021-07-16 CN CN202110807853.6A patent/CN113570988A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM277926U (en) * | 2005-03-18 | 2005-10-11 | Taichy Technology Ltd | Improved trolley structure for liquid crystal display test equipment |
| CN201698708U (en) * | 2010-05-11 | 2011-01-05 | 福建捷联电子有限公司 | Protective fixture of liquid crystal displayer panel |
| CN103713206A (en) * | 2012-09-28 | 2014-04-09 | 名硕电脑(苏州)有限公司 | Capacitor touch screen automatic test device |
| CN203288214U (en) * | 2013-04-24 | 2013-11-13 | 四川虹视显示技术有限公司 | OLED detecting device |
| CN104391206A (en) * | 2014-12-04 | 2015-03-04 | 昆山精讯电子技术有限公司 | OLED panel test device |
| CN205910266U (en) * | 2016-06-21 | 2017-01-25 | 深圳天珑无线科技有限公司 | A testing arrangement for testing mobile terminal static |
| CN206020642U (en) * | 2016-07-12 | 2017-03-15 | 国网天津市电力公司 | A kind of 500kV mutual inductor on site verifying attachments of the visual voltage regulation function of band |
| CN106249085A (en) * | 2016-08-30 | 2016-12-21 | 京东方科技集团股份有限公司 | Static discharge detection method and system |
| CN208109985U (en) * | 2018-01-12 | 2018-11-16 | 普联技术有限公司 | A kind of static discharge detection device |
| CN108845196A (en) * | 2018-04-16 | 2018-11-20 | 上海与德通讯技术有限公司 | A kind of automatic electrostatic test system |
| CN108519534A (en) * | 2018-05-30 | 2018-09-11 | 南昌华勤电子科技有限公司 | Electrostatic discharge testing system |
| CN110808001A (en) * | 2019-11-29 | 2020-02-18 | 北京兆维电子(集团)有限责任公司 | OLED panel display defect detection equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114966262A (en) * | 2022-04-20 | 2022-08-30 | 荣耀终端有限公司 | Anti-interference testing device and anti-interference testing method |
| CN114814557A (en) * | 2022-05-24 | 2022-07-29 | 上海晶岳电子有限公司 | Electrostatic gun and method for performing electrostatic discharge test by using same |
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