CN220894686U - LCD screen burning testing device - Google Patents

Abstract

The utility model provides a liquid crystal screen burning testing device, which comprises: the jig carrier part comprises a plurality of jig carriers, and each jig carrier is provided with a test probe which is opposite to a circuit pin on the liquid crystal screen; a feeding assembly line; a blanking assembly line; the image acquisition part is used for acquiring picture images of the liquid crystal display screen positioned on each jig carrier; the industrial control host is used for judging whether the picture image is qualified or not based on a preset standard picture image so as to obtain a test result; the grabbing part is used for grabbing a liquid crystal screen to be detected on the feeding assembly line and placing the liquid crystal screen on the jig carrier and grabbing a liquid crystal screen on the jig carrier and placing the liquid crystal screen on the discharging assembly line; the discharging assembly line is provided with a qualified product assembly line, a throwing product assembly line and a defective product assembly line; and the classification assembly line is used for receiving the liquid crystal screen positioned on the blanking assembly line and conveying the liquid crystal screen to the qualified product assembly line, the throwing product assembly line or the defective product assembly line according to the corresponding test result.

Description

LCD screen burning testing device

Technical Field

The utility model belongs to the technical field of display device detection, and particularly relates to a liquid crystal screen burning testing device.

Background

In the process of manufacturing the liquid crystal display, in order to improve the picture display effect experience, a burning test is required.

The existing LCD screen burning test device generally adopts a semi-manual test mode, namely: the liquid crystal screen to be tested is manually placed on the testing jig for plugging, the liquid crystal screen is manually taken down after each burning, and then a new liquid crystal screen is placed. However, the semi-manual test mode can only perform one-to-one burn test, and cannot perform burn tests of a plurality of liquid crystal screens at the same time. Moreover, the manual taking and placing of the liquid crystal screen has high requirements on operators, and is low in efficiency, so that mass production of the liquid crystal screen is not facilitated.

Disclosure of utility model

The present utility model is directed to solving the above-mentioned problems, and an objective of the present utility model is to provide a burn-in test device for a liquid crystal display.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a LCD screen burning test device, which is used for burning test of LCD screen, the LCD screen has an LCD screen body and a soft board connected with the LCD screen body, and the soft board is provided with circuit pins, which has the characteristics that: the jig carrier part comprises a plurality of jig carriers which are arranged in a row and are respectively used for placing a liquid crystal screen to be tested and transmitting burning test signals to the liquid crystal screen so as to lighten the liquid crystal screen, and each jig carrier is provided with a test probe corresponding to a circuit pin on the liquid crystal screen; the feeding assembly line is arranged at one side of the jig carrying platform part; the blanking assembly line is arranged at the middle position below the jig carrier part, and two end parts respectively extend out of two sides of the jig carrier part; the image acquisition part is arranged above the jig carrier part and is used for acquiring picture images of pictures displayed after the liquid crystal display on each jig carrier is lightened; the industrial control host is electrically connected with the image acquisition part and is used for judging whether the picture image is qualified or not based on a preset standard picture image so as to obtain a test result; the grabbing part is arranged at one side of the jig carrying platform part corresponding to the feeding assembly line and is used for grabbing a liquid crystal screen to be tested on the feeding assembly line and placing the liquid crystal screen onto the jig carrying platform, and grabbing a liquid crystal screen subjected to the burning test on the jig carrying platform and placing the liquid crystal screen onto the discharging assembly line; the discharging assembly line is arranged on the other side of the jig carrier part and corresponds to the discharging assembly line, and is provided with a qualified product assembly line, a throwing product assembly line and a defective product assembly line which are sequentially arranged from bottom to top; and the classification assembly line is arranged on the other side of the jig carrier part and positioned between the blanking assembly line and the discharging assembly line and is used for receiving the liquid crystal screen positioned on the blanking assembly line and conveying the liquid crystal screen to the qualified product assembly line, the throwing product assembly line or the defective product assembly line according to the corresponding test result.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: further comprises: the positioning part comprises an initial positioning unit for acquiring the position information of the liquid crystal screen body to be tested on the feeding assembly line and a fine positioning unit for acquiring the position information of the soft board of the liquid crystal screen after being grabbed by the manipulator, wherein the industrial control host controls the manipulator to grab the liquid crystal screen to be tested from the feeding assembly line according to the position information of the liquid crystal screen body and controls the manipulator to place the liquid crystal screen to the position of the jig carrier to enable the circuit pins of the liquid crystal screen to be aligned with the test probes of the jig carrier according to the position information of the soft board.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: wherein, the primary positioning unit is located the rear end of pan feeding assembly line, contain first location camera and first location light source, first location camera sets up in the top of pan feeding assembly line, first location light source has two strip light sources, these two strip light sources symmetry set up in the both sides of pan feeding assembly line and extend along the direction of delivery of pan feeding assembly line respectively, the fine positioning unit sets up between pan feeding assembly line and unloading assembly line, contain the second location camera, and be located the second location light source of the top of this second location camera, the second location light source is coaxial light source.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the image acquisition part comprises a camera assembly, a camera horizontal movement driving unit and a camera lifting driving unit, wherein the camera horizontal movement driving unit and the camera lifting driving unit are respectively used for driving the camera assembly to perform horizontal movement, lifting or descending, the camera assembly comprises a main camera and two side cameras symmetrically arranged on two sides of the main camera, the lens direction of the main camera is vertical downwards, and the lens direction of each side camera is downward and inclined towards the direction of the main camera.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the camera horizontal movement driving unit comprises two guide rails, two sliding blocks, a horizontal movement plate and a camera horizontal movement driving component for driving the horizontal movement plate to horizontally move, wherein the two guide rails are arranged in an up-down parallel mode, the two sliding blocks are respectively and slidably arranged on the two guide rails, the horizontal movement plate is vertically arranged, and the horizontal movement plate is fixedly arranged on the two sliding blocks and connected with the camera horizontal movement driving component for installing the camera lifting driving unit.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the camera lifting driving unit comprises a camera lifting driving component and a lifting frame, wherein the camera lifting driving component is a sliding table which is fixedly arranged on the horizontal moving plate and is vertically arranged, and the lifting frame is arranged on the sliding table and used for installing a camera assembly.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the grabbing part comprises a manipulator and a manipulator horizontal movement driving unit for driving the manipulator to horizontally move, the manipulator comprises a manipulator body and a vacuum suction nozzle assembly arranged on the manipulator body, and the vacuum suction nozzle assembly is provided with a plurality of vacuum suction nozzles which are arranged according to a shape matched with a liquid crystal screen.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the manipulator horizontal movement driving unit comprises two guide rails, two sliding blocks, a moving plate and a manipulator horizontal movement driving component for driving the moving plate to horizontally move, wherein the two guide rails are horizontally arranged in parallel, the two sliding blocks are respectively and slidably arranged on the two guide rails, and the moving plate is fixedly arranged on the two sliding blocks and is horizontally moved with the manipulator and used for installing the manipulator.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the classification assembly line comprises an assembly line body and an assembly line lifting driving unit for driving the assembly line body to ascend or descend.

The liquid crystal screen burning test device provided by the utility model can also have the following characteristics: the assembly line lifting driving unit comprises two guide rails, two sliding blocks, a lifting frame and an assembly line lifting driving component for driving the lifting frame to ascend or descend, wherein the two guide rails are vertically arranged in parallel, the two sliding blocks are respectively and slidably mounted on the two guide rails, and the lifting frame is fixedly arranged on the two sliding blocks and connected with the assembly line lifting driving component for installing an assembly line body.

The actions and effects of the utility model

According to the liquid crystal screen burning test device, the jig carrier part comprises a plurality of jig carriers which are arranged in a row and are respectively used for placing liquid crystal screens to be tested and transmitting burning test signals to the liquid crystal screens so as to lighten the liquid crystal screens, each jig carrier is provided with the test probes which are opposite to circuit pins on the liquid crystal screens, the grabbing part can grab and place the liquid crystal screens to be tested on the feeding assembly line on the jig carrier and grab and place the liquid crystal screens after the burning test on the jig carrier on the discharging assembly line, the image acquisition part can acquire picture images of pictures displayed after the liquid crystal screens are lightened on each jig carrier, and the industrial control host can judge whether the picture images are qualified or not based on preset standard picture images so as to obtain test results; moreover, the accuracy and the reliability of detection are improved.

Drawings

FIG. 1 is a schematic perspective view of a LCD burn-in test apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a schematic perspective view of a LCD burn-in testing apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of a frame in an embodiment of the utility model;

FIG. 4 is a schematic perspective view of a jig carrier according to an embodiment of the utility model;

FIG. 5 is a schematic perspective view of a feeding assembly line and a primary positioning unit according to an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a blanking line in an embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a gripping portion in an embodiment of the utility model;

FIG. 8 is a schematic perspective view of a fine positioning unit according to an embodiment of the present utility model;

fig. 9 is a schematic perspective view of an image pickup section in the embodiment of the present utility model;

Fig. 10 is a schematic perspective view of a camera lifting drive unit and a camera assembly in an embodiment of the utility model;

FIG. 11 is a schematic perspective view of a discharge line in an embodiment of the present utility model;

FIG. 12 is a schematic perspective view of a sort pipeline in an embodiment of the present utility model; and

FIG. 13 is an exploded installation schematic of a sort pipeline in an embodiment of the present utility model.

Detailed Description

The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.

FIG. 1 is a schematic perspective view of a LCD burn-in test apparatus according to an embodiment of the present utility model; fig. 2 is a schematic perspective view of a lcd panel burn-in testing apparatus according to an embodiment of the utility model.

As shown in fig. 1 and 2, in the present embodiment, a lcd panel burn-in test apparatus 10 is used for performing a burn-in test on an lcd panel 20 (see fig. 4); the liquid crystal screen 20 is provided with a liquid crystal screen body 21 and a flexible board 22 connected to the liquid crystal screen body 21, wherein a plurality of circuit pins (not shown in the figure) are arranged on the flexible board 22; in this embodiment, the liquid crystal panel 20 is a vehicle-mounted liquid crystal panel. The lcd panel burning test device 10 includes a frame 11, a jig stage portion 12, a feeding assembly line 13, a discharging assembly line 14, a grabbing portion 15, a positioning portion 16, an image acquisition portion 17, a discharging assembly line 18, a sorting assembly line 19, and an industrial control host (not shown).

Fig. 3 is a schematic perspective view of a frame in an embodiment of the present utility model.

As shown in fig. 1 to 3, the frame 11 is used for installing a jig stage portion 12, a feeding assembly line 13, a discharging assembly line 14, a grabbing portion 15, a positioning portion 16, an image acquisition portion 17 and an industrial control host, and includes a base 111, a jig stage mounting frame 112 and a grabbing portion mounting frame 113.

The base 111 is a rectangular base.

The jig stage mounting frames 112 and the grip portion mounting frames 113 are provided on the base 111 at intervals along the width direction of the base 111, and extend along the width direction of the base 111, respectively. Jig stage mounting frame 112 is used for mounting jig stage portion 12 and image acquisition portion 17, and gripper portion mounting frame 113 is used for mounting gripper portion 15.

Fig. 4 is a schematic perspective view of a jig carrier according to an embodiment of the utility model.

As shown in fig. 1 and 4, the jig stage portion 12 is mounted on a jig stage mounting bracket 112, and includes a plurality of jig stages 121.

The plurality of jig carriers 121 are mutually independent and are arranged in a row on the jig carrier mounting frame 112, that is, are sequentially arranged along the length direction of the jig carrier mounting frame 112.

Each jig carrier 121 is used for placing the liquid crystal screen 20 to be tested and transmitting a burning test signal to the liquid crystal screen 20 so as to light the liquid crystal screen, and is provided with a carrier body 121a and a pressure head probe assembly 121b.

The stage body 121 is used for placing and fixing the liquid crystal display 20 to be tested.

The ram probe assembly 121b has a press drive, a ram, and a plurality of test probes.

The pressing driving member is fixedly disposed on the carrier body 121 a.

The pressing head is mounted on the pressing driving member, and is driven by the pressing driving member to perform an ascending or descending operation with respect to the stage body 121 a.

A plurality of test probes are mounted on the lower surface of the indenter for alignment with a plurality of circuit pins on the flexible board 22 of the liquid crystal panel 20.

Fig. 5 is a schematic perspective view of a feeding assembly line and a primary positioning unit according to an embodiment of the present utility model.

As shown in fig. 1, 2 and 5, the feeding line 13 is a conveyor-type feeding and discharging line structure, and is mounted on the base 111 at a position on one side end of the jig stage portion 12.

In this embodiment, an ion wind bar 131 is disposed above the front end of the feeding assembly line 13, for eliminating static electricity of the liquid crystal display 20 on the conveyor belt.

Fig. 6 is a schematic perspective view of a blanking line in an embodiment of the present utility model.

As shown in fig. 1 and 6, the discharging line 14 is a conveyor-type feeding and discharging line structure, and is disposed at a middle position below the jig stage portion 12, and two end portions respectively extend out of both sides of the jig stage portion 20.

Fig. 7 is a schematic perspective view of a gripping portion in an embodiment of the present utility model.

As shown in fig. 1, 2 and 7, the grabbing portion 15 is located on a side of the jig stage portion 12 corresponding to the feeding line 13 and is mounted on the grabbing portion mounting frame 113, and is used for grabbing and placing the lcd 20 to be tested on the feeding line 13 onto the jig stage 121 and grabbing and placing the lcd 20 after the burn-in test on the jig stage 121 onto the blanking line 14. The grasping portion 15 includes a robot horizontal movement driving unit 151 and a robot 152.

The robot horizontal movement driving unit 151 is configured to mount the robot 152 and drive the robot 152 to horizontally move, and includes two guide rails 151a, two sliders 151b, a moving plate 151c, and a robot horizontal movement driving member 151d.

Two guide rails 151a are mounted on the grip mount 113 in a horizontal parallel arrangement, each guide rail 151a extending along the length direction of the grip mount 113.

Two sliders 151b are slidably mounted on the two guide rails 151a, respectively.

A moving plate 151c is fixedly provided on the two sliders 151b for mounting the robot 152.

A robot horizontal movement driving part 151d is located between the two guide rails 151a and connected to the moving plate 151c for driving the moving plate 151c to horizontally move. In the present embodiment, the manipulator horizontal movement driving part 151d has a servo motor, a coupling, and a screw nut structure which are sequentially connected; the screw rod in the screw-nut structure is fixedly connected with the output end of the coupler, and the nut piece is fixedly connected with the bottom of the moving plate 151 c.

The robot 152 includes a robot body 152a and a vacuum nozzle assembly 152b.

The robot body 152a is fixedly disposed on the moving plate 151 c.

The vacuum nozzle assembly 152b is mounted on the robot body 152a, and has a plurality of vacuum nozzles (not shown) for sucking the liquid crystal panel 20 to be tested, which are arranged in a shape matching the liquid crystal panel 20.

Fig. 8 is a schematic perspective view of a fine positioning unit according to an embodiment of the utility model.

As shown in fig. 1, 2, 5 and 8, the positioning unit 16 includes a preliminary positioning unit 161 and a fine positioning unit 162.

The primary positioning unit 161 is located at the rear end of the feeding assembly line 13, and is configured to obtain the position information of the liquid crystal panel body 21 located on the feeding assembly line 13 and to be tested. The primary positioning unit includes a first positioning camera 161a and a first positioning light source 161b.

The first positioning machine 161a is vertically arranged and is located above the feeding assembly line 13, and is installed on the feeding assembly line 13 through the installation frame 161c, and the lens direction of the first positioning machine is vertically upward.

The first positioning light source 161b is provided with strip light sources 161d symmetrically arranged at two sides of the feeding line 13.

The fine positioning unit 162 is located between the feeding assembly line 13 and the discharging assembly line 14, and is configured to obtain the soft board position information of the soft board 22 of the liquid crystal display 20 captured by the manipulator 152. The fine positioning unit 162 includes a base plate 162a, a fine adjustment module 162b, a second positioning camera 162c, two support columns 162d, a second positioning light source (not shown), and a light shield 162e.

The base plate 162a is fixedly disposed on a side of the jig stage mounting bracket 112.

Trimming module 162b is mounted at a central location on base plate 162 a.

The second positioning camera 162c is mounted on the fine adjustment module 162b with its lens direction facing vertically upwards.

Two support columns 162d are symmetrically disposed on both sides of the rear end of the base plate 162 a.

The second positioning light source is a coaxial light source, and is located directly above the second positioning camera 162 c.

The light shield 162e is installed at the upper ends of the two support columns 162d, and wraps the outside of the second positioning light source.

Fig. 9 is a schematic perspective view of an image pickup section in the embodiment of the present utility model; fig. 10 is a schematic perspective view of a camera lifting driving unit and a camera assembly in an embodiment of the present utility model.

As shown in fig. 1, 2, 9 and 10, the image acquisition unit 17 is provided above the jig stage unit 12, and is configured to acquire a screen image of a screen displayed after the liquid crystal panel 20 on each jig stage 121 is turned on. The image pickup section 17 includes a mounting bracket 171, a camera horizontal movement driving unit 172, a camera lifting driving unit 173, and a camera assembly 174.

The mounting frame 171 is a profile frame, is located at the other side of the jig stage portion 12 and is fixedly provided on the jig stage mounting frame 112, and is used for mounting the camera horizontal movement driving unit 172, the camera lifting driving unit 173, and the camera assembly 174.

The camera horizontal movement driving unit 172 is configured to drive the camera module 174 to perform a horizontal movement operation, and includes two guide rails 172a, two sliders 172b, a horizontal movement plate 172c, and a camera horizontal movement driving member 172d.

Two guide rails 172a are arranged in parallel up and down, and each guide rail 172a is horizontally arranged.

Two sliders 172b are slidably mounted on the two guide rails 172a, respectively.

The horizontal moving plate 172c is vertically arranged and fixedly provided on the two sliders 172 b.

A camera horizontal movement driving part 172d is located between the two guide rails 172a and connected to the horizontal movement plate 172c for driving the horizontal movement plate 172c to horizontally move. In the present embodiment, the camera horizontal movement driving part 172d has a servo motor, a decelerator, a coupling, and a screw nut structure; the screw rod in the screw-nut structure is fixedly connected with the output end of the coupler, and the nut piece is fixedly connected with the bottom of the horizontal moving plate 172 c.

The camera lifting driving unit 173 is mounted on the horizontal moving plate 172c for driving the camera assembly 174 to perform a lifting or lowering motion. The camera lifting drive unit 173 includes a camera lifting drive member 173a and a lifting frame 173b.

The camera lifting driving part 173a is a slide table fixedly provided on the horizontal moving plate 172b and vertically arranged.

The elevating rack 173b is attached to a slide table, and is driven by the slide table to perform an elevating or lowering operation.

The camera assembly 174 contains a main camera 174a and two side cameras 174b.

The main camera 174a is mounted on the lifter 173b with its lens direction vertically downward.

Two side cameras 174b are symmetrically disposed on the lifter 173b at positions on both sides of the main camera 174a, and each side camera 174b is disposed obliquely toward the main camera 174 a. In the present embodiment, the lens direction of each side camera 174b is downward and inclined toward the direction of the main camera 174a, and the side camera 174b is mounted on the lift 173b by a side camera horizontal movement driving mechanism and a side camera lift driving mechanism so as to be able to perform a horizontal movement, a lifting or a lowering motion with respect to the main camera 174 a; the side camera horizontal movement driving mechanism and the side camera lifting driving mechanism are both of a guide rail sliding block structure, the side camera horizontal movement driving mechanism is installed on the lifting frame 173b, the side camera lifting driving mechanism is installed on the side camera horizontal movement driving mechanism, and the side camera 174b is installed on the side camera lifting driving mechanism.

Fig. 11 is a schematic perspective view of a discharging pipeline in an embodiment of the present utility model.

As shown in fig. 1, 2 and 11, the discharge line 18 is provided on the other side of the jig stage portion 12 and corresponds to the rear end portion of the discharge line 14. The discharging assembly line 18 has a qualified product assembly line 181, a polished product assembly line 182 and a defective product assembly line 183 which are sequentially arranged from bottom to top, and are respectively used for receiving qualified liquid crystal screens, liquid crystal screens with material loss and unqualified liquid crystal screens.

In this embodiment, the qualified product pipeline 181, the material throwing pipeline 182 and the defective product pipeline 183 are all belt type feeding and discharging pipeline structures, the lengths of the three are sequentially reduced, and the front end portions of the three are aligned and correspondingly arranged with the classification pipeline 19.

FIG. 12 is a schematic perspective view of a sort pipeline in an embodiment of the present utility model; FIG. 13 is an exploded installation schematic of a sort pipeline in an embodiment of the present utility model.

As shown in fig. 2, 12 and 13, the sorting line 19 is disposed on the other side of the jig stage 12 and between the discharging line 18 and the blanking line 14, and is configured to receive the liquid crystal panel 20 on the discharging line 14 and convey the liquid crystal panel 20 to the qualified product line 181, the polished product line 182 or the defective product line 183 according to the corresponding test result. The sorting line 19 includes a mounting frame 191, a line lifting drive unit 192, and a line body 193.

The mounting frame 191 is a rectangular parallelepiped profile frame, and is used for mounting the pipeline lifting drive unit 192 and the pipeline body 193.

The line lifting drive unit 192 is installed in the mounting frame 191 and can perform a lifting or lowering operation. The line lifting drive unit 192 includes two guide rails 192a, two sliders 192b, a lifting frame 192c, and a line lifting drive member 192d.

The two guide rails 192a are arranged in parallel vertically.

Two sliders 192b are slidably mounted on the two guide rails 192a, respectively.

One end of the lift 192c is fixedly disposed on the two sliders 192 b.

The line lifting driving part 192d is disposed between the two guide rails 192a and connected to the lifting frame 192c for driving the lifting frame 192c to perform a lifting or lowering operation. In the present embodiment, the line lifting driving part 192d has a servo motor, a decelerator, a coupling, and a screw nut structure which are sequentially connected; the screw in the screw-nut structure is fixedly connected with the output end of the coupler, and the nut member is fixedly connected with the lifting frame 192.

The line body 193 has a conveyor type loading and unloading line structure, is mounted on the lift 192c, and can be lifted up or lowered down by the drive of the line lifting drive unit 192 d. An ion wind bar 193a is arranged above the rear end part of the assembly line body 193 and is used for eliminating static electricity of the liquid crystal screen 20 on the conveyor belt.

The industrial control host is arranged on the frame 11 and is respectively and electrically connected with the jig carrier part 12, the feeding assembly line 13, the discharging assembly line 14, the grabbing part 15, the positioning part 16, the image acquisition part 17, the discharging assembly line 18 and the classifying assembly line 19 for controlling the mechanisms to work; the control part is also used for controlling the grabbing part 15 to grab the liquid crystal screen 20 to be tested from the feeding assembly line according to the position information of the liquid crystal screen body acquired by the initial positioning unit 161, and controlling the grabbing part 15 to place the liquid crystal screen 20 on the jig carrier 121 according to the position information of the soft board acquired by the fine positioning unit 162 so as to enable the circuit pins of the liquid crystal screen 20 to be aligned with the test probes of the jig carrier 121; and is also used for judging whether the picture image acquired by the image acquisition part 17 is qualified or not based on a preset standard picture image so as to obtain a test result; and the liquid crystal display device is also used for controlling the classification pipeline 19 to transmit the liquid crystal display 20 to the corresponding qualified product pipeline 181, the material throwing pipeline 182 or the defective product pipeline 183 according to the test result.

In the present embodiment, the industrial control host determines whether the screen image acquired by the image acquisition section 17 is qualified based on a preset standard screen image to obtain a test result, specifically: firstly, according to whether a preset picture exists in the main image acquired by the main camera 174a, if so, further judging, otherwise, throwing the material; then, judging whether the picture displayed by the liquid crystal display screen is abnormal or not according to the main image acquired by the main camera 174a, and judging whether the picture displayed by the liquid crystal display screen is Mura defect or not according to the side image acquired by the side camera 174 b; if the picture is abnormal and has no Mura defect, the picture is qualified, otherwise, the picture is defective.

In this embodiment, the working process of the lcd panel burn-in test device 10 is as follows:

The liquid crystal screen 20 to be tested is placed on the feeding assembly line 13, and when the liquid crystal screen 20 reaches the position right below the first positioning machine 161a, the industrial control host controls the first positioning machine 161a to work so as to acquire the liquid crystal screen body position information of the liquid crystal screen 20.

The industrial control host controls the manipulator 152 to grasp the liquid crystal screen 20 from the feeding assembly line according to the position information of the liquid crystal screen body, and then when the manipulator moves to the position right above the second positioning camera 162c, the industrial control host controls the second positioning camera 162c to work so as to acquire the position information of the flexible board of the liquid crystal screen 20.

The industrial control host controls the manipulator 152 to place the liquid crystal display 20 on the jig carrier 121 according to the soft board position information, so that the circuit pins of the liquid crystal display 20 are aligned with the test probes of the jig carrier 121.

The industrial control host controls the camera horizontal movement driving unit 172 and the camera lifting driving unit 173 to work, and then controls the camera assembly 174 to work to acquire the picture image of the picture displayed after the liquid crystal display 20 on the jig carrier 121 is lighted after the camera assembly 174 moves to the position of the preset height above the corresponding jig carrier 121; the industrial control host determines whether the picture image acquired by the camera component 174 is qualified based on the preset standard picture image, so as to obtain a test result.

The industrial control host controls the manipulator 152 to grab and place the tested liquid crystal display 20 on the jig carrier 121 on the blanking assembly line 14, and the blanking assembly line 14 conveys the liquid crystal display 20 to the classification assembly line 19.

The industrial control host transmits the liquid crystal display 20 to a corresponding qualified product pipeline 181, a material throwing pipeline 182 or a defective product pipeline 183 according to the control classification pipeline 19, so as to finish the burning test work of the liquid crystal display 20.

Example operation and Effect

According to the liquid crystal screen burning test device, the jig carrier part comprises a plurality of jig carriers which are arranged in a row and are respectively used for placing liquid crystal screens to be tested and transmitting burning test signals to the liquid crystal screens so as to lighten the liquid crystal screens, each jig carrier is provided with the test probes which are opposite to circuit pins on the liquid crystal screens, the grabbing part can grab and place the liquid crystal screens to be tested on the feeding assembly line on the jig carrier and grab and place the liquid crystal screens which are positioned on the jig carrier and are subjected to burning test on the discharging assembly line, the image acquisition part can acquire picture images of pictures displayed after the liquid crystal screens positioned on each jig carrier are lightened, the industrial control host can judge whether the picture images are qualified or not based on preset standard picture images so as to obtain test results, and the classification assembly line can accept the liquid crystal screens positioned on the discharging assembly line and convey the liquid crystal screens to qualified products, throwing product assembly lines or defective product assembly lines in the discharging assembly line according to the corresponding test results; moreover, the accuracy and the reliability of detection are improved.

In addition, because still have the location portion, this location portion contains initial positioning unit and fine positioning unit, initial positioning unit can acquire the LCD screen body position information that is located the LCD screen body that awaits measuring on the pan feeding assembly line, fine positioning unit can acquire the soft board position information of the soft board of LCD screen after being snatched by the manipulator, the industrial computer control manipulator snatchs the LCD screen that awaits measuring from the pan feeding assembly line according to LCD screen body position information, and place this LCD screen to the position department that makes the circuit pin of LCD screen and the test probe counterpoint of tool carrier on the tool carrier according to soft board position information control manipulator, further improved the accuracy that the manipulator snatched and placed the LCD screen, further guarantee the accuracy and the reliability of test.

In addition, because the grabbing part comprises the manipulator and the manipulator horizontal movement driving unit, the manipulator can horizontally move between a plurality of jig carriers arranged in a row under the driving of the manipulator horizontal movement driving unit, the movement stroke of the manipulator is shortened, and the accuracy and stability of the manipulator for taking and placing products are further improved.

In addition, because the camera component contains the main camera and two side cameras symmetrically arranged on two sides of the main camera, the lens direction of the main camera is vertical downwards, the lens direction of each side camera is downward and is inclined towards the direction of the main camera, so that the main image and the side image of the liquid crystal screen can be respectively acquired, whether the picture display of the liquid crystal screen is abnormal or not and whether the picture has Mura defects or not can be detected, and the accuracy and the reliability of the burning test of the liquid crystal screen are further improved.

It should be appreciated by those skilled in the art that the foregoing embodiments are preferred embodiments of the present utility model, and are intended to be construed as illustrative only and not limiting the scope of the utility model.

Claims (10)

1. The utility model provides a LCD screen burns record testing arrangement for burn record test to the LCD screen, the LCD screen has the LCD screen body and connects in the soft board of this LCD screen body, be equipped with circuit pin on the soft board, its characterized in that includes:

The jig carrier part comprises a plurality of jig carriers which are arranged in a row and are respectively used for placing a liquid crystal screen to be tested and transmitting burning test signals to the liquid crystal screen so as to lighten the liquid crystal screen, and each jig carrier is provided with a test probe which is opposite to a circuit pin on the liquid crystal screen;

The feeding assembly line is arranged at one side of the jig carrier part;

The blanking assembly line is arranged at the middle position below the jig carrier part, and two end parts respectively extend out of two sides of the jig carrier part;

The image acquisition part is arranged above the jig carrier part and is used for acquiring picture images of pictures displayed after the liquid crystal display on each jig carrier is lightened;

The industrial control host is electrically connected with the image acquisition part and is used for judging whether the picture image is qualified or not based on a preset standard picture image so as to obtain a test result;

The grabbing part is arranged at one side of the jig carrying platform part corresponding to the feeding assembly line and is used for grabbing a liquid crystal screen to be tested on the feeding assembly line and placing the liquid crystal screen on the jig carrying platform, and grabbing a liquid crystal screen subjected to the burning test on the jig carrying platform and placing the liquid crystal screen on the discharging assembly line;

The discharging assembly line is arranged on the other side of the jig carrier part and corresponds to the discharging assembly line, and is provided with a qualified product assembly line, a throwing product assembly line and a defective product assembly line which are sequentially arranged from bottom to top; and

The classification assembly line is arranged on the other side of the jig carrier part and positioned between the blanking assembly line and the discharging assembly line, and is used for receiving the liquid crystal display screen positioned on the blanking assembly line and conveying the liquid crystal display screen to the qualified product assembly line, the throwing product assembly line or the defective product assembly line according to the corresponding test result.

2. The lcd panel burn-in testing apparatus of claim 1, further comprising:

the positioning part comprises an initial positioning unit for acquiring the position information of the liquid crystal screen body to be tested on the feeding assembly line and a fine positioning unit for acquiring the position information of the soft board of the liquid crystal screen after being grabbed by the manipulator,

The industrial control host controls the manipulator to grasp the liquid crystal screen to be tested from the feeding assembly line according to the position information of the liquid crystal screen body, and controls the manipulator to place the liquid crystal screen on the jig carrier according to the position information of the flexible board so that circuit pins of the liquid crystal screen are aligned with the test probes of the jig carrier.

3. The liquid crystal screen burn-in test apparatus of claim 2, wherein:

Wherein the primary positioning unit is positioned at the rear end part of the feeding assembly line and comprises a first positioning machine and a first positioning light source,

The first positioning machine is arranged above the feeding assembly line,

The first positioning light source is provided with two strip light sources which are symmetrically arranged at two sides of the feeding assembly line and respectively extend along the conveying direction of the feeding assembly line,

The fine positioning unit is arranged between the feeding assembly line and the discharging assembly line, comprises a second positioning camera and a second positioning light source positioned above the second positioning camera,

The second positioning light source is a coaxial light source.

4. The liquid crystal screen burn-in test apparatus of claim 1, wherein:

Wherein the image acquisition part comprises a camera component, a camera horizontal movement driving unit and a camera lifting driving unit which are respectively used for driving the camera component to perform horizontal movement, lifting or descending movement,

The camera assembly comprises a main camera and two side cameras symmetrically arranged at two sides of the main camera,

The lens direction of the main camera is vertically downward,

The lens direction of each of the side cameras is downward and inclined toward the direction of the main camera.

5. The lcd panel burn-in test apparatus of claim 4, wherein:

Wherein the camera horizontal movement driving unit comprises two guide rails, two sliding blocks, a horizontal movement plate and a camera horizontal movement driving component for driving the horizontal movement plate to horizontally move,

The two guide rails are arranged in parallel up and down,

The two sliding blocks are respectively and slidably arranged on the two guide rails,

The horizontal moving plate is vertically arranged, fixedly arranged on the two sliding blocks and connected with the camera horizontal moving driving component, and used for installing the camera lifting driving unit.

6. The lcd panel burn-in test apparatus of claim 5, wherein:

Wherein the camera lifting driving unit comprises a camera lifting driving component and a lifting frame,

The camera lifting driving component is a sliding table which is fixedly arranged on the horizontal moving plate and is vertically arranged,

The lifting frame is installed on the sliding table and used for installing the camera component.

7. The liquid crystal screen burn-in test apparatus of claim 1, wherein:

wherein the grabbing part comprises a manipulator and a manipulator horizontal movement driving unit for driving the manipulator to horizontally move,

The manipulator comprises a manipulator body and a vacuum suction nozzle assembly arranged on the manipulator body,

The vacuum nozzle assembly has a plurality of vacuum nozzles arranged in a shape that matches the liquid crystal panel.

8. The lcd panel burn-in test apparatus of claim 7, wherein:

Wherein the manipulator horizontal movement driving unit comprises two guide rails, two sliding blocks, a moving plate and a manipulator horizontal movement driving component for driving the moving plate to horizontally move,

The two guide rails are horizontally arranged in parallel,

The two sliding blocks are respectively and slidably arranged on the two guide rails,

The moving plate is fixedly arranged on the two sliding blocks and horizontally moves the driving part with the manipulator, and is used for installing the manipulator.

9. The liquid crystal screen burn-in test apparatus of claim 1, wherein:

The classification assembly line comprises an assembly line body and an assembly line lifting driving unit for driving the assembly line body to ascend or descend.

10. The lcd panel burn-in testing apparatus of claim 9, wherein:

Wherein the assembly line lifting driving unit comprises two guide rails, two sliding blocks, a lifting frame and an assembly line lifting driving component for driving the lifting frame to ascend or descend,

The two guide rails are vertically arranged in parallel,

The two sliding blocks are respectively and slidably arranged on the two guide rails,

The lifting frame is fixedly arranged on the two sliding blocks and connected with the assembly line lifting driving component and used for installing the assembly line body.