CN112461510B - Liquid crystal display backlight unit quality detection device - Google Patents
Liquid crystal display backlight unit quality detection device Download PDFInfo
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- CN112461510B CN112461510B CN202011240338.6A CN202011240338A CN112461510B CN 112461510 B CN112461510 B CN 112461510B CN 202011240338 A CN202011240338 A CN 202011240338A CN 112461510 B CN112461510 B CN 112461510B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
- G01M11/0214—Details of devices holding the object to be tested
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Abstract
The invention discloses a quality detection device for a liquid crystal display backlight module, relates to the field of liquid crystal displays, and aims to solve the problem of low manual polishing detection efficiency of the existing liquid crystal display backlight module. The device has a novel structure, can effectively carry out polishing detection operations in different directions and different angles on the liquid crystal display screen backlight module, reduces the labor amount of workers, improves the accuracy and efficiency of the backlight module detection, and is suitable for popularization and use.
Description
Technical Field
The invention relates to the field of liquid crystal display screens, in particular to a quality detection device for a backlight module of a liquid crystal display screen.
Background
The backlight module is one of the key components of the liquid crystal display panel. The function is to provide sufficient brightness and light source with uniform distribution, so that the image can be displayed normally. Liquid crystal displays are passive light emitting elements and the display screen itself does not emit light but is illuminated by a backlight system underneath it. The backlight source and the liquid crystal display screen are combined together to form the liquid crystal display module. The liquid crystal backlight is a planar uniform lighting device, and cold cathode fluorescent lamps or LED lamp strips serving as light sources are arranged on two sides or one side of the whole backlight source. The cold cathode fluorescent lamp is a linear light source, the LED is a point light source, and a light guide plate is needed to be used for converting the light source into a surface light source. The light guide plate is generally made of acrylic plastic with high light transmittance, and the surface of the light guide plate is very smooth and flat, so that most of the internal light can be regularly and totally reflected on the flat surface of the light guide plate and can not be emitted to the outside of the light guide plate. The bottom of the light guide plate of the liquid crystal display is printed with white dots. At the position where the light guide plate is printed with the mesh points, the light rays are not regularly reflected totally but emitted to the upper part of the light guide plate. Controlling the density of the dots at each position can control how much light is emitted from the light guide plate at that position. The precisely designed mesh points of the light guide plate can enable light rays incident from two sides to be uniformly spread on the whole plane. Optical films are placed above the light guide plate, and the films play a role in homogenizing light and converging large-angle light for front observation and the like.
Backlight unit need use the detection lens to carry out the multi-angle to it in process of production and polish the detection, and this kind of detection is singly leaned on artifical the completion, and workman's intensity of labour is big, and low in labor efficiency produces bad product moreover easily, consequently, in order to solve this type of problem, we have proposed liquid crystal display backlight unit quality detection device.
Disclosure of Invention
The quality detection device for the liquid crystal display screen backlight module provided by the invention solves the problem that the existing liquid crystal display screen backlight module is low in efficiency due to manual polishing detection.
In order to achieve the purpose, the invention adopts the following technical scheme:
liquid crystal display backlight unit quality detection device, including examining test table, the top one side fixed mounting who examines test table has the support that is the L type, just the bottom of the horizontal segment of support is provided with the detection camera lens, be provided with adjusting device between detection camera lens and the support, the top fixed mounting who examines test table has the storage tank, just examine the back fixedly connected with fixed plate of test table, the fixed plate is kept away from one side fixedly connected with mounting panel who examines test table, the inside of mounting panel is provided with the fourth mounting groove, just the inside fixed mounting of fourth mounting groove has the cylinder, the inside of fixed plate is provided with the shifting chute, just the tailpiece of the piston rod portion fixedly connected with connecting rod of cylinder, the tip of connecting rod extends to the inside fixedly connected with movable plate of shifting chute, examine the test table and set up the detection mouth that is link up from top to bottom, just two first mounting groove, second mounting groove and the third mounting groove that are the symmetric distribution about detecting the mouth center are seted up respectively to the inside of examining test table the second mounting groove is located between first mounting groove and the third mounting groove, the movable rod runs through between first mounting groove, second movable rod and the movable rod is connected with the locating plate and the locating plate, and the one end of locating plate is connected with the locating plate and the locating plate is connected with the locating plate.
Preferably, the circumference lateral wall cover of movable rod is equipped with reset spring, just reset spring's both ends all are connected with the mount pad, and the mount pad at reset spring both ends contacts with the lateral wall of locating plate and the inner wall of third mounting groove respectively.
Preferably, the inside fixedly connected with fixed block of second mounting groove, just the movable rod slides and runs through the fixed block, one of them the fixed block is close to one side rotation that detects the mouth and installs driven gear, just be connected with latch device between driven gear and the movable rod, the top fixed mounting who detects the platform has driving motor, just driving motor is close to driven gear one side and sets up, driving motor's output shaft fixedly connected with drive gear, just inside drive gear's circumference extended to the second mounting groove, and with driven gear meshing.
Preferably, the clamping device comprises a clamping strip and a clamping groove, the circumferential side wall of the movable rod is fixedly connected with the clamping strip which is distributed in an annular array, the circumferential inner wall of the driven gear is provided with the clamping groove which is distributed in the annular array, and the clamping strip is matched with the clamping groove.
Preferably, the inside of first mounting groove is rotated and is installed and be horizontal leading wheel, just the leading wheel is walked around to the haulage rope, the one end fixedly connected with turning block that the haulage rope is close to the movable rod, just the turning block is connected with the one end rotation that the locating plate was kept away from to the movable rod.
Preferably, one side that two the locating plate is close to each other all is provided with the constant head tank that is the U type.
Preferably, adjusting device includes first spout, first slider, diaphragm, second spout and second slider, the bottom of support horizontal segment is provided with first spout along its length direction, just the inside slidable mounting of first spout has first slider, the bottom fixedly connected with diaphragm of first slider, just the bottom of diaphragm is provided with the second spout along its length direction, just the inside slidable mounting of second spout has the second slider, the bottom fixed mounting of second slider has the measuring lens.
The quality detection method of the liquid crystal display screen backlight module comprises the following steps:
installing a liquid crystal display screen backlight module inside the detection port according to the size of the liquid crystal display screen backlight module, and then carrying out lighting detection operation on the backlight module at different angles and positions by adjusting the angle of the backlight module and moving the detection lens;
the detection operation process is realized in an automatic mode, the backlight module does not need to be manually held, the permeability of the detection light is ensured, and meanwhile, the backlight module is not damaged;
and meanwhile, the photoelectric sensor is arranged at the position of the detection port, so that the rotation angle of the position of the re-detection port of the backlight module is more accurate.
The beneficial effects of the invention are as follows:
1. the moving plate is driven to move through the cylinder, so that the moving plate can pull the traction rope, the movable rod and the positioning plate, the device can position and clamp backlight modules of different sizes, the driving motor drives the two gears to rotate, the movable rod and the positioning clamp plate are driven to rotate, the device can rotate the whole backlight module to be detected, and automatic angle adjustment is achieved.
2. Through setting up adjusting device between support and detection camera lens to can carry out the regulation of optional position in the X axle of horizontal plane and Y axle inside to the position that detects the camera lens, make it can replace the manual work to operate, effectual improvement backlight unit's detection efficiency reduces workman's amount of labour simultaneously, improves liquid crystal display backlight unit's detection accuracy.
In conclusion, the invention can effectively carry out the lighting detection operation of different directions and different angles on the backlight module of the liquid crystal display screen, reduces the labor amount of workers, improves the accuracy and the efficiency of the detection of the backlight module, and is suitable for popularization and use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of B of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the connection between the driven gear and the movable rod according to the present invention;
fig. 5 is a schematic view of the internal structure of the inspection table, the mounting plate and the fixing plate according to the present invention.
Reference numbers in the figures: the detection platform comprises a detection table 1, a storage box 2, a support 3, a detection lens 4, a first sliding groove 5, a detection port 6, a guide wheel 7, a first mounting groove 8, a driving motor 9, a driving gear 10, a second mounting groove 11, a fixed block 12, a driven gear 13, a third mounting groove 14, a return spring 15, a positioning plate 16, a traction rope 17, a movable rod 18, a clamping strip 19, a positioning groove 20, a clamping groove 21, a first sliding block 22, a transverse plate 23, a second sliding groove 24, a second sliding block 25, a mounting plate 26, an air cylinder 27, a fixing plate 28, a movable plate 29, a movable groove 30, a fourth mounting groove 31 and a connecting rod 32.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, a quality detection device for a backlight module of a liquid crystal display, including detecting platform 1, top one side fixed mounting of detecting platform 1 has support 3 that is L type, and the bottom of the horizontal section of support 3 is provided with detection lens 4, be provided with adjusting device between detection lens 4 and support 3, detect top fixed mounting of platform 1 has storage tank 2, and detect back fixedly connected with fixed plate 28 of platform 1, one side fixedly connected with mounting panel 26 that detects platform 1 is kept away from to fixed plate 28, the inside of mounting panel 26 is provided with fourth mounting groove 31, and the inside fixed mounting of fourth mounting groove 31 has cylinder 27, the inside of fixed plate 28 is provided with movable groove 30, and cylinder 27's tailpiece of the piston rod fixedly connected with connecting rod 32, the inside fixedly connected with movable plate 29 that the tip of connecting rod 32 extends to movable groove 30, detect and set up the mouth 6 that is the setting up and down on platform 1, and detect the inside of platform 1 and set up two first mounting grooves 8 that are symmetric distribution about detecting mouth 6 centers respectively, second mounting groove 11 and third mounting groove 14, and the movable rod 16 that is provided with the movable rod 16 that is close to the movable positioning plate 16 that the movable rod 16 that runs through between the mounting groove 16 and the movable rod that the movable rod 16 is kept away from the movable groove 16, and the movable rod that is provided with the movable rod extends to the same side that is kept away from the movable groove 18.
The circumference lateral wall cover of movable rod 18 is equipped with reset spring 15, and reset spring 15's both ends all are connected with the mount pad, and the mount pad at reset spring 15 both ends contacts with the lateral wall of locating plate 16 and the inner wall of third mounting groove 14 respectively.
Inside fixedly connected with fixed block 12 of second mounting groove 11, and movable rod 18 slides and runs through fixed block 12, one of them fixed block 12 is close to one side rotation of detecting mouth 6 and installs driven gear 13, and be connected with latch device between driven gear 13 and the movable rod 18, the top fixed mounting who detects platform 1 has driving motor 9, and driving motor 9 is close to driven gear 13 one side setting, driving motor 9's output shaft fixedly connected with drive gear 10, and the circumference of drive gear 10 extends to inside second mounting groove 11, and mesh with driven gear 13.
The clamping device comprises clamping strips 19 and clamping grooves 21, the circumferential side wall of the movable rod 18 is fixedly connected with the clamping strips 19 distributed in an annular array, the clamping grooves 21 distributed in an annular array are formed in the circumferential inner wall of the driven gear 13, and the clamping strips 19 are matched with the clamping grooves 21.
The inside of first mounting groove 8 rotates and installs and be horizontal leading wheel 7, and haulage rope 17 walks around leading wheel 7, and haulage rope 17 is close to the one end fixedly connected with turning block of movable rod 18, and the turning block rotates with the one end that locating plate 16 was kept away from to movable rod 18 and is connected.
Adjusting device includes first spout 5, first slider 22, diaphragm 23, second spout 24 and second slider 25, the bottom of 3 horizontal segments of support is provided with first spout 5 along its length direction, and the inside slidable mounting of first spout 5 has first slider 22, the bottom fixedly connected with diaphragm 23 of first slider 22, and the bottom of diaphragm 23 is provided with second spout 24 along its length direction, and the inside slidable mounting of second spout 24 has second slider 25, the bottom fixed mounting of second slider 25 has detection camera lens 4.
When the backlight module of the liquid crystal display is detected, the cylinder 27 is started first, the cylinder is made to pull the connecting rod 32, the connecting rod 32 pulls the moving plate 29 to slide in the moving groove 30, meanwhile, the moving plate 29 pulls the pulling rope 17, the moving plate pulls the moving rod 18, the moving rod 18 drives the positioning plate 16 to move, when the distance between the two positioning plates 16 can put down the display module to be detected, the cylinder 27 reversely operates at the moment, the reset spring 15 can push the positioning plate 16 to move reversely, the liquid crystal display backlight module to be detected can be clamped in the positioning groove 20, then the driving motor 9 is started, the driving motor 9 drives the driving gear 10 to rotate, the driving gear 10 is meshed with the driven gear 13, the driven gear 13 can rotate, due to the clamping device arranged between the driven gear 13 and the moving rod 18, the driven gear 13 can drive the moving rod 18 to rotate, the positioning plate 16 and the liquid crystal display backlight module to be detected are driven by the moving rod 18 to rotate, the detection lens 4 is opened simultaneously, the detection lens 4 can slide in the first sliding chute 5 and the second sliding chute 24, the detection of the liquid crystal display 6 and the detection lens can be installed at different angles, and the detection accuracy is improved.
The quality detection method of the liquid crystal display screen backlight module comprises the following steps:
installing a liquid crystal display screen backlight module inside the detection port according to the size of the liquid crystal display screen backlight module, and then carrying out lighting detection operation on the backlight module at different angles and positions by adjusting the angle of the backlight module and moving the detection lens;
the detection operation process is realized in an automatic mode, the backlight module is not required to be manually held, the permeability of the detection light is ensured, and meanwhile, the backlight module is not damaged;
simultaneously, a photoelectric sensor is arranged at the position of the detection port, so that the rotation angle of the position of the detection port of the backlight module is more accurate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. Liquid crystal display backlight unit quality detection device, including examining test table (1), its characterized in that, examine top one side fixed mounting of test table (1) and be L type support (3), just the bottom of the horizontal segment of support (3) is provided with detection camera lens (4), be provided with adjusting device between detection camera lens (4) and support (3), the top fixed mounting who examines test table (1) has storage tank (2), just the back fixedly connected with fixed plate (28) of examining test table (1), one side fixedly connected with mounting panel (26) of examining test table (1) are kept away from to fixed plate (28), the inside of mounting panel (26) is provided with fourth mounting groove (31), just the inside fixed mounting of fourth mounting groove (31) has cylinder (27), the inside of fixed plate (28) is provided with moving groove (30), just the piston rod tip fixedly connected with connecting rod (32) of cylinder (27), the tip of connecting rod (32) extends to the inside fixedly connected with moving plate (29) of moving groove (30), examine test table (1) and be the test table (6) that link up and down sets up, and examine test table (1) and the symmetry distribution about two mounting grooves (8) are the second mounting groove (11) and the second mounting groove (8) respectively and the detection center is seted up, the second mounting groove (11) on the same side is located between the first mounting groove (8) and the third mounting groove (14), a movable rod (18) penetrates through the first mounting groove (8), the second mounting groove (11) and the third mounting groove (14) in a sliding mode, the end portion of the movable rod (18) extends to the interior of the detection opening (6) and is fixedly connected with a positioning plate (16), and a traction rope (17) is connected between one end, far away from the positioning plate (16), of the movable rod (18) and the movable plate (29);
the inside fixedly connected with fixed block (12) of second mounting groove (11), just movable rod (18) slide and run through fixed block (12), one of them fixed block (12) are close to one side rotation that detects mouth (6) and install driven gear (13), just be connected with latch device between driven gear (13) and movable rod (18), the top fixed mounting who detects platform (1) has driving motor (9), just driving motor (9) are close to driven gear (13) one side and set up, the output shaft fixedly connected with drive gear (10) of driving motor (9), just the circumference of drive gear (10) extends to inside second mounting groove (11), and meshes with driven gear (13).
2. The quality detection device for the backlight module of the liquid crystal display screen according to claim 1, wherein a return spring (15) is sleeved on a circumferential side wall of the movable rod (18), mounting seats are connected to both ends of the return spring (15), and the mounting seats at both ends of the return spring (15) are respectively in contact with a side wall of the positioning plate (16) and an inner wall of the third mounting groove (14).
3. The quality detection device for the backlight module of the liquid crystal display screen according to claim 1, wherein the clamping device comprises a clamping strip (19) and a clamping groove (21), the clamping strip (19) distributed in an annular array is fixedly connected to the circumferential side wall of the movable rod (18), the clamping groove (21) distributed in an annular array is formed in the circumferential inner wall of the driven gear (13), and the clamping strip (19) is matched with the clamping groove (21).
4. The device for detecting the quality of the backlight module of the liquid crystal display screen according to claim 1, wherein a transverse guide wheel (7) is rotatably mounted inside the first mounting groove (8), the pulling rope (17) bypasses the guide wheel (7), a rotating block is fixedly connected to one end of the pulling rope (17) close to the movable rod (18), and the rotating block is rotatably connected to one end of the movable rod (18) far away from the positioning plate (16).
5. The device for detecting the quality of the backlight module of the liquid crystal display screen according to claim 1, wherein one side of the two positioning plates (16) close to each other is provided with a U-shaped positioning groove (20).
6. The quality detection device for the backlight module of the liquid crystal display screen according to claim 1, wherein the adjusting device comprises a first sliding groove (5), a first slider (22), a transverse plate (23), a second sliding groove (24) and a second slider (25), the first sliding groove (5) is arranged at the bottom end of the horizontal section of the bracket (3) along the length direction of the bottom end, the first slider (22) is slidably mounted inside the first sliding groove (5), the transverse plate (23) is fixedly connected to the bottom end of the first slider (22), the second sliding groove (24) is arranged at the bottom end of the transverse plate (23) along the length direction of the transverse plate, the second slider (25) is slidably mounted inside the second sliding groove (24), and the detection lens (4) is fixedly mounted at the bottom end of the second slider (25).
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| CN202011240338.6A CN112461510B (en) | 2020-11-09 | 2020-11-09 | Liquid crystal display backlight unit quality detection device |
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| CN202011240338.6A CN112461510B (en) | 2020-11-09 | 2020-11-09 | Liquid crystal display backlight unit quality detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113894065B (en) * | 2021-10-14 | 2023-04-18 | 安徽赛时达显示科技有限公司 | Light effect detection device for intelligent manufacturing of backlight module with multi-angle reflection grabbing |
| CN114486757A (en) * | 2022-01-21 | 2022-05-13 | 深圳市立鑫光电科技有限公司 | LED display screen color difference detection device and method |
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| CN115031932B (en) * | 2022-07-01 | 2023-05-23 | 深圳科利盟精密有限公司 | Backlight slice detection jig convenient for operation color mixing |
| CN118032299A (en) * | 2024-04-09 | 2024-05-14 | 镇江焱发微电子有限公司 | Display screen performance detection system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013037145A1 (en) * | 2011-09-14 | 2013-03-21 | 深圳市华星光电技术有限公司 | Liquid crystal display device, liquid crystal panel and backlight module assembly method and structure |
| CN104648973A (en) * | 2013-11-25 | 2015-05-27 | 辽宁益盛达机电设备制造有限公司 | Full-automatic positioning mechanism for backlight machine production line |
| CN105564761A (en) * | 2016-03-22 | 2016-05-11 | 中南林业科技大学 | Rotary production line and method capable of automatically detecting, labeling and pasting film for backlight parts |
| CN107621353A (en) * | 2017-07-25 | 2018-01-23 | 江苏美威自动化科技有限公司 | A kind of backlight module monitor station |
| CN209026446U (en) * | 2018-08-14 | 2019-06-25 | 深圳市给力光电有限公司 | A kind of light-emitting diode display convenient for assembling |
| CN211375244U (en) * | 2020-02-28 | 2020-08-28 | 兰州学博电子新技术有限责任公司 | Bad detection device for liquid crystal display screen |
| CN211717739U (en) * | 2020-04-15 | 2020-10-20 | 黄山东安新高能源科技有限公司 | Detection apparatus for photovoltaic board performance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923841B (en) * | 2010-08-17 | 2012-05-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display |
-
2020
- 2020-11-09 CN CN202011240338.6A patent/CN112461510B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013037145A1 (en) * | 2011-09-14 | 2013-03-21 | 深圳市华星光电技术有限公司 | Liquid crystal display device, liquid crystal panel and backlight module assembly method and structure |
| CN104648973A (en) * | 2013-11-25 | 2015-05-27 | 辽宁益盛达机电设备制造有限公司 | Full-automatic positioning mechanism for backlight machine production line |
| CN105564761A (en) * | 2016-03-22 | 2016-05-11 | 中南林业科技大学 | Rotary production line and method capable of automatically detecting, labeling and pasting film for backlight parts |
| CN107621353A (en) * | 2017-07-25 | 2018-01-23 | 江苏美威自动化科技有限公司 | A kind of backlight module monitor station |
| CN209026446U (en) * | 2018-08-14 | 2019-06-25 | 深圳市给力光电有限公司 | A kind of light-emitting diode display convenient for assembling |
| CN211375244U (en) * | 2020-02-28 | 2020-08-28 | 兰州学博电子新技术有限责任公司 | Bad detection device for liquid crystal display screen |
| CN211717739U (en) * | 2020-04-15 | 2020-10-20 | 黄山东安新高能源科技有限公司 | Detection apparatus for photovoltaic board performance |
Non-Patent Citations (1)
| Title |
|---|
| "基于机器视觉的背光模组表面瑕疵检测***研究";任富强;《科学技术创新》;20190930(第9期);全文 * |
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