CN113899961A - Automatic testing device and testing method for electrostatic discharge of liquid crystal display panel - Google Patents
Automatic testing device and testing method for electrostatic discharge of liquid crystal display panel Download PDFInfo
- Publication number
- CN113899961A CN113899961A CN202110968144.6A CN202110968144A CN113899961A CN 113899961 A CN113899961 A CN 113899961A CN 202110968144 A CN202110968144 A CN 202110968144A CN 113899961 A CN113899961 A CN 113899961A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- display panel
- crystal display
- static
- mechanical arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 134
- 238000012360 testing method Methods 0.000 title claims abstract description 133
- 230000007246 mechanism Effects 0.000 claims abstract description 138
- 230000003068 static effect Effects 0.000 claims abstract description 108
- 230000005611 electricity Effects 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 238000010998 test method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
-
- 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
Abstract
The invention discloses an automatic electrostatic discharge testing device and a testing method for a liquid crystal display panel, and the automatic electrostatic discharge testing device comprises a multi-degree-of-freedom mechanical arm, an electrostatic gun, a testing table, a panel fixing mechanism, a driving mechanism, a first camera shooting mechanism, a second camera shooting mechanism, a static eliminating mechanism and a control terminal, wherein the panel fixing mechanism is rotationally connected to the table top of the testing table, the driving mechanism is arranged on the testing table and connected with the panel fixing mechanism, the first camera shooting mechanism and the second camera shooting mechanism are fixed on the testing table, the static eliminating mechanism is arranged on the table top, the electrostatic gun is fixed on the multi-degree-of-freedom mechanical arm, the first camera shooting mechanism and the second camera shooting mechanism are all in communication connection with the control terminal, and 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. The test method is executed based on a test device. 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 an automatic testing device and a testing method for electrostatic discharge of a liquid crystal display panel.
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 an automatic testing device and a testing method for electrostatic discharge of a liquid crystal display panel, 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:
an automatic electrostatic discharge testing device for a liquid crystal display panel comprises a multi-degree-of-freedom mechanical arm, an electrostatic gun, a testing table, a panel fixing mechanism, a driving 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 rotatably connected to the tabletop of the testing table, the driving mechanism is arranged on the testing table and connected with the panel fixing mechanism to drive the panel fixing mechanism to turn around a hinge point relative to the tabletop, the first camera shooting mechanism and the second camera shooting mechanism are fixed on the testing table and used for acquiring picture images of the display panel, the electrostatic eliminating mechanism is arranged on the tabletop and used for eliminating 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, and the multi-degree-of-freedom mechanical arm, the electrostatic gun, the driving mechanism, the first camera shooting mechanism, the second camera shooting mechanism, the panel and the panel are arranged on the tabletop, The static electricity removing mechanisms are in communication connection with the control terminal, and an optical automatic detection algorithm is embedded into the control terminal and used for automatically judging and identifying the picture quality of the liquid crystal display panel.
In one embodiment: the panel fixing mechanism comprises a door-shaped fixing frame, a first sliding block and a second sliding block, wherein the open end of the door-shaped fixing frame is hinged with the desktop, the first sliding block is in sliding connection with two side walls of the door-shaped fixing frame, and the second sliding block is in sliding connection with the top wall of the door-shaped fixing frame.
In one embodiment: the driving mechanism comprises a driving cylinder, a connecting rod is fixedly connected to the door-shaped fixing frame, and a piston rod of the driving cylinder is rotatably connected with the connecting rod.
In one embodiment: this first camera mechanism includes first camera and adjusts the support, and the one end and the test table fixed connection and the other end of this regulation support rotate with first camera to be connected, should adjust the support and be the link mechanism support.
In one embodiment: the second camera shooting mechanism comprises a second camera and a mounting seat, the mounting seat is fixedly arranged on the test desktop, and the second camera is connected with the mounting seat.
In one embodiment: the static electricity removing mechanism comprises a static electricity removing brush and a steering engine, wherein one end of the static electricity removing brush is connected with an output shaft of the steering engine and is driven by the steering engine to rotate.
In one embodiment: the static electricity removing mechanism is arranged between the multi-degree-of-freedom mechanical arm and the panel fixing mechanism.
An automatic testing method for electrostatic discharge of a liquid crystal display panel is based on the automatic testing device for electrostatic discharge 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 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 automatic testing device for electrostatic discharge 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 testing personnel fix the liquid crystal display panel to be tested on the panel fixing mechanism, the back of the liquid crystal display panel to be tested faces upwards, the initial position of the panel fixing mechanism is horizontally placed against the desktop of the testing table, and the testing personnel electrify the liquid crystal display panel to be tested to enable the liquid crystal display panel to be tested 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 driving mechanism works to enable the liquid crystal display panel to overturn to a specified position along with the panel fixing mechanism;
8) the second 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 the test result is not qualified, the multi-degree-of-freedom mechanical arm moves to the initial position, the driving mechanism works again, the panel fixing mechanism carries the liquid crystal display panel to return to the initial position, and the program is finished; if the program is qualified, the program continues to run;
9) the driving mechanism works again to make the panel fixing mechanism carry the liquid crystal display panel to return to the initial position;
10) 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;
11) 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 6-11) 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.
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.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic structural diagram of an automatic testing apparatus for electrostatic discharge of a liquid crystal display panel.
Fig. 2 is a partially enlarged schematic view of fig. 1.
Detailed Description
Referring to fig. 1 and 2, an automatic testing apparatus for electrostatic discharge of a 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 driving mechanism 5, a first camera mechanism 6, a second camera mechanism 7, a static eliminating mechanism 8, 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 rotatably connected to the desktop of the testing table 3, the panel fixing mechanism 4 includes a door-shaped fixing frame 41, a first sliding block 42 and a second sliding block 43, the open end of the door-shaped fixing frame 41 is hinged to the desktop, the first sliding block 42 is slidably connected to two side walls of the door-shaped fixing frame 41, and the second sliding block 43 is slidably connected to the first sliding block 42 and the top wall of the door-shaped fixing frame 41. The liquid crystal panel to be tested is placed among the door-shaped fixed frame 41, the first sliding block 42 and the second sliding block 43, and the relative positions of the first sliding block 42, the second sliding block 43 and the door-shaped fixed frame 41 are locked by bolts so as to clamp the liquid crystal display panel 100.
The driving mechanism 5 is arranged on the test table 3 and connected with the panel fixing mechanism 4 to drive the panel fixing mechanism 4 to turn around the hinge point relative to the table top. The driving mechanism 5 includes a driving cylinder 51, a connecting rod 411 is fixed on the fixing frame 41, specifically, the connecting rod 411 is fixed on the side wall of the fixing frame 41, and the piston rod of the driving cylinder 51 is rotatably connected with the connecting rod 411. The driving mechanism 5 can be connected with a control terminal in a communication way and can be controlled by the action of the control terminal. The driving mechanism 5 drives the liquid crystal display panel 100 on the panel fixing mechanism 4 to turn over, so that the display screen of the liquid crystal display panel 100 can be switched between an upward mode and a downward mode.
The first camera shooting mechanism 6 and the second camera shooting mechanism 7 are fixed on the test table 3 and used for acquiring the picture images of the display panel 100, the first camera shooting mechanism 6 comprises a first camera 61 and an adjusting support 62, one end of the adjusting support 62 is fixedly connected with the test table 3, the other end of the adjusting support 62 is rotatably connected with the first camera 61, the adjusting support 62 is a link mechanism support, the position where the first camera 61 is located can be adjusted through the adjusting support 62, and the first camera 61 is used for acquiring the picture images of the liquid crystal display panel 100 when the picture faces upwards.
The second camera mechanism 7 includes a second camera 71 and a mounting seat 72, the mounting seat 71 is fixedly arranged on the testing desk 3, and the second camera 71 is connected with the mounting seat 72. An angle adjuster is usually provided between the mounting base 72 and the second camera 71 for adjusting the shooting angle of the second camera 71. The second camera 71 is used for acquiring a picture image when the picture of the liquid crystal display panel 100 is facing 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 6 and the second camera shooting mechanism 7 are all in communication connection with a control terminal, an optical automatic detection Algorithm (AOI) is embedded in the control terminal and used for automatically judging and identifying the picture quality of the liquid crystal display panel 100 and used as a judgment basis for judging whether the electrostatic test of the display panel 100 is qualified or not, and in the scheme, the automatic detection algorithm is any algorithm capable of detecting the picture quality. The control terminal can display the picture of the liquid crystal display panel 100, 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 8 is arranged on a desktop and used for removing static electricity on the display panel 100 and the static electricity gun 2, the static electricity removing mechanism 8 comprises a static electricity removing brush 81 and a steering engine 82, one end of the static electricity removing brush 81 is connected with an output shaft of the steering engine 82 and driven by the steering engine 82 to rotate, and particularly the static electricity removing brush rotates around the output shaft of the steering engine 82. The steering engine 82 can be in communication connection with and controlled by a control terminal. The static eliminating mechanism 8 is arranged between the multi-degree-of-freedom mechanical arm 1 and the panel fixing mechanism 4. The steering engine 82 drives the static removing mechanism 8 to rotate by a certain angle to contact with the liquid crystal display panel 100 and the gun head of the static gun 2, and the static on the liquid crystal display panel 100 can be removed after the static removing mechanism 8 is connected with the ground wire and is in contact with the liquid crystal display panel 100 to be detected and the gun head of the static gun 2.
An automatic testing method for electrostatic discharge of a liquid crystal display panel is based on the automatic testing device for electrostatic discharge 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 1 with the static and dynamic electric guns 2 moves to an initial position; a tester fixes the liquid crystal display panel 100 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 100 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 100, the first camera 61 obtains a display picture of the liquid crystal display panel 100 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) when the static electricity removing mechanism 8 works, the static electricity removing brush 81 of the static electricity removing mechanism 8 sweeps the liquid crystal display panel 100 and the gun head of the static electricity 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 100 is a screen display surface, and the back surface of the liquid crystal display panel 100 is a non-screen display surface.
An automatic testing method for electrostatic discharge of a liquid crystal display panel is based on the automatic testing device for electrostatic discharge 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 1 with the static and dynamic electric guns 2 moves to an initial position; a tester fixes the liquid crystal display panel 100 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 100 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 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 100, the first camera 61 acquires a display picture of the liquid crystal display panel 100 (the picture faces the first camera 61 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 8 works, and the static removing mechanism 8 sweeps the liquid crystal display panel 100 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 tester fixes the liquid crystal display panel 100 to be tested on the panel fixing mechanism 4, the back of the liquid crystal display panel 100 to be tested faces upwards, 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 100 to be tested to enable the liquid crystal display panel to be tested to work normally; a tester sets system parameters on a control terminal;
6) starting back detection; the multi-degree-of-freedom mechanical arm 1 drives 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 100;
7) the driving mechanism 5 works to turn the liquid crystal display panel 100 to a specified position along with the panel fixing mechanism 4;
8) the second camera 71 acquires a display picture of the liquid crystal display panel 100 (the picture faces the second camera at this time) 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 1 is not qualified, the multi-degree-of-freedom mechanical arm 1 moves to the initial position, the driving mechanism 5 works again, the panel fixing mechanism 4 carries the liquid crystal display panel 100 to return to the initial position, and the program is finished; if the program is qualified, the program continues to run;
9) the driving mechanism 5 is operated again to return the panel fixing mechanism 4 to the initial position with the liquid crystal display panel 100;
10) the static removing mechanism 8 works, and a static removing brush of the static removing mechanism 8 sweeps the liquid crystal display panel 100 and the gun head of the static gun 2 to remove residual static electricity;
11) 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 100 is a screen display surface, and the back surface of the liquid crystal display panel 100 is a non-screen 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 (9)
1. The utility model provides a liquid crystal display panel electrostatic discharge automatic testing arrangement which characterized in that: the system comprises a multi-degree-of-freedom mechanical arm, an electrostatic gun, a test table, a panel fixing mechanism, a driving mechanism, a first camera shooting mechanism, a second camera shooting mechanism, a static removing mechanism and a control terminal, wherein the panel fixing mechanism is rotationally connected to the desktop of the test table, the driving mechanism is arranged on the test table and connected with the panel fixing mechanism to drive the panel fixing mechanism to turn around a hinge point relative to the desktop, the first camera shooting mechanism and the second camera shooting mechanism are fixed on the test table and used for acquiring a picture image of a display panel, the static removing mechanism is arranged on the desktop and used for removing 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, and the multi-degree-of-freedom mechanical arm, the electrostatic gun, the driving mechanism, the first camera shooting mechanism, the second camera shooting mechanism and the static removing mechanism are all in communication connection with the 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 automatic testing device for electrostatic discharge of liquid crystal display panel according to claim 1, wherein: the panel fixing mechanism comprises a door-shaped fixing frame, a first sliding block and a second sliding block, wherein the open end of the door-shaped fixing frame is hinged with the desktop, the first sliding block is in sliding connection with two side walls of the door-shaped fixing frame, and the second sliding block is in sliding connection with the top wall of the door-shaped fixing frame.
3. The automatic testing device for electrostatic discharge of liquid crystal display panel according to claim 2, wherein: the driving mechanism comprises a driving cylinder, a connecting rod is fixedly connected to the door-shaped fixing frame, and a piston rod of the driving cylinder is rotatably connected with the connecting rod.
4. The automatic testing device for electrostatic discharge of liquid crystal display panel according to claim 3, wherein: this first camera mechanism includes first camera and adjusts the support, and the one end and the test table fixed connection and the other end of this regulation support rotate with first camera to be connected, should adjust the support and be the link mechanism support.
5. The automatic testing device for electrostatic discharge of liquid crystal display panel according to claim 4, wherein: the second camera shooting mechanism comprises a second camera and a mounting seat, the mounting seat is fixedly arranged on the test desktop, and the second camera is connected with the mounting seat.
6. The automatic testing device for electrostatic discharge of liquid crystal display panel according to claim 5, wherein: the static electricity removing mechanism comprises a static electricity removing brush and a steering engine, wherein one end of the static electricity removing brush is connected with an output shaft of the steering engine and is driven by the steering engine to rotate.
7. The automatic testing device for electrostatic discharge of liquid crystal display panel according to claim 6, wherein: the static electricity removing mechanism is arranged between the multi-degree-of-freedom mechanical arm and the panel fixing mechanism.
8. An automatic testing method for electrostatic discharge of a liquid crystal display panel is characterized in that: the automatic testing device for electrostatic discharge of liquid crystal display panel according to any of claims 1 to 7, comprising 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 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.
9. An automatic testing method for electrostatic discharge of a liquid crystal display panel is characterized in that: the automatic testing device for electrostatic discharge of liquid crystal display panel according to any of claims 1 to 7, comprising 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 testing personnel fix the liquid crystal display panel to be tested on the panel fixing mechanism, the back of the liquid crystal display panel to be tested faces upwards, the initial position of the panel fixing mechanism is horizontally placed against the desktop of the testing table, and the testing personnel electrify the liquid crystal display panel to be tested to enable the liquid crystal display panel to be tested 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 driving mechanism works to enable the liquid crystal display panel to overturn to a specified position along with the panel fixing mechanism;
8) the second 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 the test result is not qualified, the multi-degree-of-freedom mechanical arm moves to the initial position, the driving mechanism works again, the panel fixing mechanism carries the liquid crystal display panel to return to the initial position, and the program is finished; if the program is qualified, the program continues to run;
9) the driving mechanism works again to make the panel fixing mechanism carry the liquid crystal display panel to return to the initial position;
10) 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;
11) 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 6-11) 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.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110806442 | 2021-07-16 | ||
| CN2021108064425 | 2021-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113899961A true CN113899961A (en) | 2022-01-07 |
Family
ID=79187774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110968144.6A Pending CN113899961A (en) | 2021-07-16 | 2021-08-23 | Automatic testing device and testing method for electrostatic discharge of liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113899961A (en) |
Cited By (1)
| 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 |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080056746A1 (en) * | 2006-08-30 | 2008-03-06 | Hiroyuki Suhara | Surface-potential distribution measuring apparatus, image carrier, and image forming apparatus |
| US20130002273A1 (en) * | 2011-05-02 | 2013-01-03 | Kyung Jin Min | System and method for electrostatic discharge testing of devices under test |
| CN104569642A (en) * | 2013-10-22 | 2015-04-29 | 鸿富锦精密电子(天津)有限公司 | electrostatic discharge immunity testing 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 |
| CN108535567A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of Characterization of Air Electrostatic Discharge test device and test method |
| 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 |
| CN208336475U (en) * | 2018-04-11 | 2019-01-04 | 中国工程物理研究院电子工程研究所 | A kind of antenna holder applied to electromagnetic compatibility electromagnetic radiation test item |
| CN208820118U (en) * | 2018-10-08 | 2019-05-03 | 苏州华碧微科检测技术有限公司 | A kind of connector convenient for ESD test USB interface |
| CN210183629U (en) * | 2019-05-27 | 2020-03-24 | 惠州市纬特科技有限公司 | Static electricity eliminating device |
| CN211262678U (en) * | 2019-12-12 | 2020-08-14 | 电子科技大学中山学院 | Product function durability test equipment based on machine vision |
| CN111624418A (en) * | 2020-04-03 | 2020-09-04 | 威凯检测技术有限公司 | Visual diagnostic device of space electromagnetic interference |
| CN211701846U (en) * | 2020-03-23 | 2020-10-16 | 安克创新科技股份有限公司 | Electromagnetic compatibility optimizing device |
| CN211826287U (en) * | 2020-01-10 | 2020-10-30 | 安谦工程技术(苏州)有限公司 | A turning device for cell-phone electromagnetic compatibility test |
-
2021
- 2021-08-23 CN CN202110968144.6A patent/CN113899961A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080056746A1 (en) * | 2006-08-30 | 2008-03-06 | Hiroyuki Suhara | Surface-potential distribution measuring apparatus, image carrier, and image forming apparatus |
| US20130002273A1 (en) * | 2011-05-02 | 2013-01-03 | Kyung Jin Min | System and method for electrostatic discharge testing of devices under test |
| CN104569642A (en) * | 2013-10-22 | 2015-04-29 | 鸿富锦精密电子(天津)有限公司 | electrostatic discharge immunity testing 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 |
| CN208109985U (en) * | 2018-01-12 | 2018-11-16 | 普联技术有限公司 | A kind of static discharge detection device |
| CN208336475U (en) * | 2018-04-11 | 2019-01-04 | 中国工程物理研究院电子工程研究所 | A kind of antenna holder applied to electromagnetic compatibility electromagnetic radiation test item |
| 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 |
| CN108535567A (en) * | 2018-04-17 | 2018-09-14 | 京东方科技集团股份有限公司 | A kind of Characterization of Air Electrostatic Discharge test device and test method |
| CN208820118U (en) * | 2018-10-08 | 2019-05-03 | 苏州华碧微科检测技术有限公司 | A kind of connector convenient for ESD test USB interface |
| CN210183629U (en) * | 2019-05-27 | 2020-03-24 | 惠州市纬特科技有限公司 | Static electricity eliminating device |
| CN211262678U (en) * | 2019-12-12 | 2020-08-14 | 电子科技大学中山学院 | Product function durability test equipment based on machine vision |
| CN211826287U (en) * | 2020-01-10 | 2020-10-30 | 安谦工程技术(苏州)有限公司 | A turning device for cell-phone electromagnetic compatibility test |
| CN211701846U (en) * | 2020-03-23 | 2020-10-16 | 安克创新科技股份有限公司 | Electromagnetic compatibility optimizing device |
| CN111624418A (en) * | 2020-04-03 | 2020-09-04 | 威凯检测技术有限公司 | Visual diagnostic device of space electromagnetic interference |
Non-Patent Citations (3)
| Title |
|---|
| SHENG GUAN等: "Analysis of Electrostatic Discharge Parameters Affected by Velocity of Electrodes Based on Neural Networ", 《2018 12TH IEEE INTERNATIONAL CONFERENCE ON ANTI-COUNTERFEITING, SECURITY, AND IDENTIFICATION (ASID)》 * |
| TOMOYA MITSUI等: "Prevention of Back Corona Discharge in an Electrostatic Precipitator Using Asymmetrical Rectangular AC Voltage", 《IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS》 * |
| 徐晓英等: "显示屏表面空气式静电放电实验特性", 《强激光与粒子束》 * |
Cited By (1)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113570988A (en) | Liquid crystal display panel electrostatic discharge test system and test method | |
| CN108225938A (en) | A kind of bending test apparatus and bending test method | |
| CN109821755A (en) | A kind of circuit board detects automatically and sorting equipment | |
| CN113899961A (en) | Automatic testing device and testing method for electrostatic discharge of liquid crystal display panel | |
| CN109738783A (en) | A kind of PCB test device and test method | |
| CN105136044A (en) | Workpiece height intelligent measuring apparatus and measuring method | |
| CN110926947A (en) | Column type insulator check out test set | |
| CN110940668A (en) | Automatic optical detection equipment capable of adjusting image capturing combination and image capturing combination adjusting method | |
| CN217277389U (en) | Anti-tensile testing device for emergency power line | |
| CN208109985U (en) | A kind of static discharge detection device | |
| CN112414681B (en) | Intelligent wireless communication equipment installation detection method | |
| CN208373405U (en) | The comprehensive automatic detection spray equipment of strip sheet metal component | |
| CN109901312A (en) | A kind of display panel cell sections of detection device | |
| CN108650502A (en) | Test device and its test method for Camera jitter tests | |
| CN219104530U (en) | Soft material fatigue testing device | |
| CN205352725U (en) | Tired performance test bench of backrest | |
| CN108311323A (en) | The comprehensive automatic detection spray equipment of strip sheet metal component | |
| CN111855238B (en) | Swing testing mechanism and working method thereof | |
| CN209400231U (en) | Wiper body testboard | |
| CN208125632U (en) | A kind of high-precision optical fiber adapter visual detection equipment | |
| CN218646873U (en) | Drive-by-wire ware automatic check out test set | |
| CN208953250U (en) | A kind of atmosphere light quality inspection device | |
| CN106483688B (en) | A kind of display panel test device and test method | |
| CN219871616U (en) | Voltage withstand testing device for capacitor product | |
| CN206601288U (en) | A kind of testing integrated machine equipment of shared quick changing formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220107 |
|
| RJ01 | Rejection of invention patent application after publication |