CN108957810B - Device for lighting screen - Google Patents

Device for lighting screen Download PDF

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Publication number
CN108957810B
CN108957810B CN201810939071.6A CN201810939071A CN108957810B CN 108957810 B CN108957810 B CN 108957810B CN 201810939071 A CN201810939071 A CN 201810939071A CN 108957810 B CN108957810 B CN 108957810B
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China
Prior art keywords
probe
visual positioning
screen
camera
hole
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CN201810939071.6A
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Chinese (zh)
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CN108957810A (en
Inventor
王鹏
姚毅
杨德重
陆豪亮
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Suzhou Lingyun Vision Intelligent Equipment Co ltd
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Suzhou Lingyun Vision Intelligent Equipment Co ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1306Details
    • G02F1/1309Repairing; Testing

Abstract

The application provides a device for lightening screen, inspect through the visual positioning pinhole and wait to detect the Mark point on the LCD screen, adjust the device, make the Mark point be located the center of visual positioning pinhole, because the relative position of visual positioning pinhole on the mounting panel and probe mounting hole is the same with the relative position of Mark point and Pad point on waiting to detect the LCD screen, when the position of Mark point and visual positioning pinhole is corresponding, the probe on the probe mounting hole is also corresponding with the Pad point on the LCD screen. Therefore, a worker can finish the alignment work of the probe and the Pad point only by aligning the visual positioning pin hole with the Mark point, the condition that the probe is pressed on the edge of the Pad point and the probe is pressed on the other wrong Pad point is avoided, the screen lightening precision is improved, the operation is simple and convenient, the workload of the worker is reduced, and the working efficiency is improved.

Description

Device for lighting screen
Technical Field
The present application relates to the field of LCD liquid crystal display devices, and more particularly, to a device for lighting a screen.
Background
With the widespread use of LCD products, LCD product quality is a factor of common concern for consumers and manufacturers. Because the LCD screen has complex process and various defects, the defect detection of the LCD screen becomes one of important links in the production process. A common apparatus in the technology of defect detection of LCD screens is AOI (automated optical Inspection).
The LCD AOI equipment is designed based on AOI and is defect detection equipment for an LCD screen, and in the screen lighting process of the detection equipment, in order to ensure the accuracy of the pressure welding of a probe and an LCD screen Pad point (a contact point for realizing circuit signal interaction between a terminal part of the LCD screen and the outside), a worker needs to adjust a probe mechanism and observe the contact condition of the probe and the screen Pad point by using human eyes. However, because the Pad point has a small size, the width is more than 0.3-0.6 mm, the probes are fine and dense, and the positions of the probes relative to the Pad point are difficult to clearly observe by human eyes, the situations that the probes are pressed on the edge of the Pad point and the probes are pressed on other wrong Pad points easily occur, so that the lighting is unstable and even fails; moreover, the calibration method is long in time consumption and low in efficiency.
Disclosure of Invention
The application provides a device for lighting a screen, which aims to solve the problems that the size of a Pad point on the existing LCD screen is very small, the width of the Pad point is more than 0.3-0.6 mm, and probes are fine and dense, so that the position of the probes relative to the Pad point is difficult to clearly observe by human eyes, and therefore, the situations that the probes are pressed on the edge of the Pad point and the probes are pressed on other wrong Pad points are easy to occur easily, and the lighting is unstable or even fails; moreover, the calibration method has the problems of long time consumption and low efficiency.
The application provides a device for lighting a screen, comprising a probe fixing mechanism;
the probe fixing mechanism comprises a probe pressing block, a circuit board and a probe mounting plate;
the circuit board is arranged on the lower surface of the probe pressing block;
a probe mounting plate is connected below the circuit board;
the probe mounting plate is provided with a visual positioning pin hole and a probe mounting hole, and the relative position of the visual positioning pin hole and the probe mounting hole is the same as the relative position of a Mark point and a Pad point on an LCD screen to be detected;
the probe mounting plate is connected with a probe through a probe mounting hole so that the probe is connected with the circuit board and used for lighting an LCD screen to be detected;
the probe pressing block and the circuit board are provided with slotted holes corresponding to the visual positioning pin holes on the probe mounting plate, so that the LCD screen to be detected can be observed through the slotted holes and the visual positioning pin holes.
Further, the device also comprises a connecting part and a visual positioning mechanism;
the visual positioning mechanism is connected with the probe pressing block through a connecting part, so that the visual positioning mechanism can be used for observing the LCD screen to be detected through the slotted hole and the visual positioning pin hole.
Further, the visual positioning mechanism comprises a bracket, an adjusting mechanism and a camera;
the upper part of the bracket is connected with the camera through an adjusting mechanism so that the camera is positioned above the slotted hole;
the lower part of the bracket is connected with the probe pressing block through a connecting part.
Further, the adjusting mechanism comprises a guide shaft and a camera fixing component;
the camera passes through camera fixed subassembly and guiding axle sliding connection.
Furthermore, the camera fixing component is a rotary cross clamp;
the tail part of the rotary cross clamp is provided with a through hole matched with the guide shaft, and the guide shaft penetrates through the through hole to be connected with the support;
the clamp of the rotary cross clamp is coated on the outer side wall of the camera.
Further, the support comprises a connecting cross bar,
two sides of the connecting cross rod are respectively provided with a supporting part;
and two sides of the guide shaft are respectively connected with the front end of the supporting part.
Furthermore, the supporting part is a bent supporting rod, and two sides of the guide shaft are respectively connected with the supporting rod.
Further, the bending angle of the support rod is 90 degrees.
Further, the camera is a microscope camera.
Further, the circuit board is a PCB board.
According to the technical scheme, the Mark point on the LCD screen to be detected is observed through the visual positioning pin hole, the device is adjusted, the Mark point is located in the center of the visual positioning pin hole, the relative position of the visual positioning pin hole and the probe mounting hole on the mounting plate is the same as the relative position of the Mark point and the Pad point on the LCD screen to be detected, and the probe on the probe mounting hole corresponds to the Pad point on the LCD screen when the Mark point corresponds to the visual positioning pin hole. Therefore, a worker can finish the alignment work of the probe and the Pad point only by aligning the visual positioning pin hole with the Mark point, the condition that the probe is pressed on the edge of the Pad point and the probe is pressed on the other wrong Pad point is avoided, the screen lightening precision is improved, the operation is simple and convenient, the workload of the worker is reduced, and the working efficiency is improved.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of an apparatus for lighting a screen according to the present application;
FIG. 2 is a schematic structural view of a probe fixing mechanism;
FIG. 3 is a schematic diagram of the positions of Mark points and Pad points of an LCD screen;
FIG. 4 is a schematic view of the alignment of the visual alignment pin hole with the Mark point;
fig. 5 is a schematic structural diagram of the visual positioning mechanism.
The device comprises a probe fixing mechanism, a probe pressing block, a slotted hole 12, a circuit board 13, a probe mounting plate 14, a visual positioning pin hole 15, an adjusting mechanism 2, a rotary cross clamp 21, a guide shaft 22, a clamp 23, a clamping end 24, a support 3, a connecting cross rod 31, a supporting rod 32, a camera 4 and a connecting part 5.
Detailed Description
Referring to fig. 1 and 2, the present application provides an apparatus for lighting a screen, including a probe fixing mechanism 1;
the probe fixing mechanism 1 comprises a probe pressing block 11, a circuit board 13 and a probe mounting plate 14;
the circuit board 13 is mounted on the lower surface of the probe pressing block 11;
a probe mounting plate 14 is connected below the circuit board 13;
the probe mounting plate 14 is provided with a visual positioning pin hole 15 and a probe mounting hole, and the relative position of the visual positioning pin hole 15 and the probe mounting hole is the same as the relative position of a Mark point and a Pad point on an LCD screen to be detected;
the probe mounting plate 14 is connected with a probe through a probe mounting hole so that the probe is connected with the circuit board 13 and used for lighting an LCD screen to be detected;
the probe pressing block 11 and the circuit board 13 are provided with a slotted hole 12 corresponding to the visual positioning pin hole 15 on the probe mounting plate 14, so that the LCD screen to be detected can be observed through the slotted hole 12 and the visual positioning pin hole 15.
The LCD screen is constructed by placing liquid crystal in two parallel pieces of glass, and arranging many vertical and horizontal fine wires between the two pieces of glass, and controlling the rod-shaped crystal molecules to change direction by electrifying or not, so as to refract light to generate pictures. Referring to fig. 3, a contact point, namely a Pad point, is further provided on the LCD screen, where the terminal portion interacts with the external circuit signal; and Mark points for alignment. The method and the device realize the position alignment of the probe and the Pad point by utilizing the mutual position relationship between the Mark point and the Pad point on the LCD screen.
Specifically, in the embodiment of the present application, the probe mounting plate 14 is provided with the visual positioning pin hole 15 and the probe mounting hole, and the relative position of the visual positioning pin hole 15 and the probe mounting hole is the same as the relative position of the Mark point and the Pad point on the LCD screen to be detected, so that a worker aligns the Mark point through the visual positioning pin hole 15, and even if the Mark point is located at the center of the visual positioning pin hole 15, as shown in fig. 4, while aligning the Mark point, the probe on the probe mounting hole aligns the Pad point, and then presses down the probe, and the LCD screen is turned on by the contact between the probe connected with the circuit board 13 and the Pad point.
According to the technical scheme, the Mark point on the LCD screen to be detected is observed through the visual positioning pin hole 15, the device is adjusted, the Mark point is located in the center of the visual positioning pin hole 15, the relative position of the visual positioning pin hole 15 and the probe mounting hole on the mounting plate is the same as the relative position of the Mark point and the Pad point on the LCD screen to be detected, and the probe on the probe mounting hole corresponds to the Pad point on the LCD screen when the positions of the Mark point and the visual positioning pin hole 15 correspond to each other. Therefore, a worker can finish the alignment work of the probe and the Pad point only by aligning the visual positioning pin hole 15 with the Mark point, the conditions that the probe is pressed on the edge of the Pad point and the probe is pressed on another wrong Pad point are avoided, the screen lightening precision is improved, the operation is simple and convenient, the workload of the worker is reduced, and the working efficiency is improved.
Further, referring to fig. 5, the device further comprises a connecting part 5 and a visual positioning mechanism;
the visual positioning mechanism is connected with the probe pressing block 11 through the connecting part 5, so that the LCD screen to be detected can be observed through the slotted hole 12 and the visual positioning pin hole 15 by utilizing the visual positioning mechanism.
The visual positioning mechanism can enlarge and observe the visual positioning pin hole 15, so that a worker can align the visual positioning pin hole 15 and a Mark point more accurately, the working efficiency is improved, and the operation difficulty is reduced.
Further, the visual positioning mechanism comprises a bracket 3, an adjusting mechanism 2 and a camera 4;
the upper part of the bracket 3 is connected with the camera 4 through the adjusting mechanism 2, so that the camera 4 is positioned above the slotted hole 12;
the lower part of the bracket 3 is connected with the probe pressing block 11 through a connecting part 5.
The adjusting mechanism 2 can adjust the position and the angle of the camera 4 so as to meet the detection requirements of different LCD screens.
Specifically, the adjusting mechanism 2 includes a guide shaft 22 and a camera head fixing component;
the camera 4 is slidably connected with the guide shaft 22 through a camera fixing component.
Further, the camera fixing component is a rotating cross clamp 21;
the tail part of the rotating cross clamp 21 is provided with a through hole matched with the guide shaft 22, and the guide shaft 22 penetrates through the through hole to be connected with the bracket 3;
the clamp 23 of the rotating cross clamp 21 is coated on the outer side wall of the camera 4.
The rotating cross clamp 21 can slide on the guide shaft 22, so that a worker can adjust the position of the camera 4 by adjusting the position of the rotating cross clamp 21, and adjust the included angle between the clamping end 24 of the clamp 23 and a vertical plane, and meanwhile, adjust the angle of the camera 4 by adjusting the included angle between the rotating cross clamp 21 and a horizontal plane, so as to meet different requirements. Optionally, the rotating cross clamp 21 further comprises a knob and a bolt, the knob and the bolt being in a detachable connection by means of a thread. The worker places the clamping end 24 of the clip 23 between the knob and the bolt for securement.
Further, the support portion is a bent support rod 32, two sides of the guide shaft 22 are respectively connected with the support rod 32, and further, the bending angle of the support rod is 90 °.
The bending angle of the support rod 32 is 90 degrees, so that the worker can adjust the angle of the camera 4 more conveniently, and the lighting efficiency is further improved.
Further, the camera 4 is a microscope camera. The micro camera has the advantages of high transmission speed, good color restoration, clear image and convenient storage.
Further, the circuit board 13 is a PCB board. The PCB is printed with a circuit for lighting the LCD screen.
According to the technical scheme, the Mark point on the LCD screen to be detected is observed through the visual positioning pin hole 15, the device is adjusted, the Mark point is located in the center of the visual positioning pin hole 15, the relative position of the visual positioning pin hole 15 and the probe mounting hole on the mounting plate is the same as the relative position of the Mark point and the Pad point on the LCD screen to be detected, and the probe on the probe mounting hole corresponds to the Pad point on the LCD screen when the positions of the Mark point and the visual positioning pin hole 15 correspond to each other. Therefore, a worker can finish the alignment work of the probe and the Pad point only by aligning the visual positioning pin hole 15 with the Mark point, the conditions that the probe is pressed on the edge of the Pad point and the probe is pressed on another wrong Pad point are avoided, the screen lightening precision is improved, the operation is simple and convenient, the workload of the worker is reduced, and the working efficiency is improved.

Claims (9)

1. An apparatus for lighting a screen, characterized by comprising a probe fixing mechanism (1);
the probe fixing mechanism (1) comprises a probe pressing block (11), a circuit board (13) and a probe mounting plate (14);
the circuit board (13) is mounted on the lower surface of the probe pressing block (11);
a probe mounting plate (14) is connected below the circuit board (13);
a visual positioning pin hole (15) and a probe mounting hole are formed in the probe mounting plate (14), and the relative position of the visual positioning pin hole (15) and the probe mounting hole is the same as the relative position of a Mark point and a Pad point on an LCD screen to be detected;
the probe mounting plate (14) is connected with a probe through a probe mounting hole so that the probe is connected with the circuit board (13) and used for lighting an LCD screen to be detected;
slotted holes (12) corresponding to the visual positioning pin holes (15) on the probe mounting plate (14) are formed in the probe pressing block (11) and the circuit board (13), so that an LCD screen to be detected can be observed through the slotted holes (12) and the visual positioning pin holes (15);
the device further comprises a visual positioning mechanism, wherein the visual positioning mechanism comprises a support (3), an adjusting mechanism (2) and a camera (4), and the adjusting mechanism (2) comprises a guide shaft (22) and a camera fixing component;
the camera fixing component is a rotary cross clamp (21);
the tail part of the rotary cross clamp (21) is provided with a through hole matched with the guide shaft (22), and the guide shaft (22) penetrates through the through hole to be connected with the support (3);
the clamp (23) of the rotary cross clamp (21) is coated on the outer side wall of the camera (4).
2. A device for illuminating a screen according to claim 1, wherein the device further comprises a connecting portion (5) and a visual positioning mechanism;
the visual positioning mechanism is connected with the probe pressing block (11) through a connecting part (5) so that the visual positioning mechanism can be used for observing the LCD screen to be detected through the slotted hole (12) and the visual positioning pin hole (15).
3. A device for illuminating a screen according to claim 2, characterized in that said visual positioning means comprise a support (3), an adjustment means (2) and a camera (4);
the upper part of the bracket (3) is connected with the camera (4) through the adjusting mechanism (2) so that the camera (4) is positioned above the slotted hole (12);
the lower part of the bracket (3) is connected with the probe pressing block (11) through a connecting part (5).
4. A device for illuminating a screen according to claim 3, wherein said adjustment mechanism (2) comprises a guide shaft (22) and a camera head fixing assembly;
the camera (4) is connected with the guide shaft (22) in a sliding mode through the camera fixing assembly.
5. A device for illuminating a screen according to claim 4, characterized in that said support (3) comprises a connecting rail (31),
two sides of the connecting cross rod (31) are respectively provided with a supporting part;
two sides of the guide shaft (22) are respectively connected with the front ends of the supporting parts.
6. The apparatus for lighting a screen as claimed in claim 5, wherein the supporting portion is a bent supporting bar (32), and both sides of the guide shaft (22) are connected to the supporting bar (32), respectively.
7. An apparatus for illuminating a screen according to claim 6, wherein the bending angle of the supporting bar (32) is 90 °.
8. A device for illuminating a screen according to claim 3, characterized in that said camera (4) is a microscopic camera.
9. A device for lighting a screen as claimed in claim 1, wherein the circuit board (13) is a PCB board.
CN201810939071.6A 2018-08-17 2018-08-17 Device for lighting screen Active CN108957810B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810939071.6A CN108957810B (en) 2018-08-17 2018-08-17 Device for lighting screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810939071.6A CN108957810B (en) 2018-08-17 2018-08-17 Device for lighting screen

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CN108957810A CN108957810A (en) 2018-12-07
CN108957810B true CN108957810B (en) 2021-07-16

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110045528A (en) * 2019-04-24 2019-07-23 苏州凌云视界智能设备有限责任公司 Liquid crystal display compression bonding apparatus, system and method

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Publication number Priority date Publication date Assignee Title
CN204422587U (en) * 2015-01-26 2015-06-24 深圳市凯码时代科技有限公司 A kind of test fixture structure embedding CCD
CN204463778U (en) * 2015-01-08 2015-07-08 昆山龙腾光电有限公司 Display panel and display panel measurement jig
CN105527464A (en) * 2014-09-28 2016-04-27 深圳市诚信佳美科技有限公司 Method and device for panel testing point positioning, and method and system for testing panel
CN205620435U (en) * 2016-04-12 2016-10-05 深圳市金彩虹精密制造股份有限公司 Main control board test fixture
CN106597706A (en) * 2016-12-23 2017-04-26 苏州凌云视界智能设备有限责任公司 Automatic lighting jig for liquid crystal screen
CN106910444A (en) * 2017-02-28 2017-06-30 京东方科技集团股份有限公司 Ignition device and lighting test method
CN207096625U (en) * 2017-08-30 2018-03-13 苏州凌云视界智能设备有限责任公司 For adjusting the visualization device and lighting jig of probe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105527464A (en) * 2014-09-28 2016-04-27 深圳市诚信佳美科技有限公司 Method and device for panel testing point positioning, and method and system for testing panel
CN204463778U (en) * 2015-01-08 2015-07-08 昆山龙腾光电有限公司 Display panel and display panel measurement jig
CN204422587U (en) * 2015-01-26 2015-06-24 深圳市凯码时代科技有限公司 A kind of test fixture structure embedding CCD
CN205620435U (en) * 2016-04-12 2016-10-05 深圳市金彩虹精密制造股份有限公司 Main control board test fixture
CN106597706A (en) * 2016-12-23 2017-04-26 苏州凌云视界智能设备有限责任公司 Automatic lighting jig for liquid crystal screen
CN106910444A (en) * 2017-02-28 2017-06-30 京东方科技集团股份有限公司 Ignition device and lighting test method
CN207096625U (en) * 2017-08-30 2018-03-13 苏州凌云视界智能设备有限责任公司 For adjusting the visualization device and lighting jig of probe

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