CN108983448B - Screen detection device - Google Patents
Screen detection device Download PDFInfo
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- CN108983448B CN108983448B CN201810500841.7A CN201810500841A CN108983448B CN 108983448 B CN108983448 B CN 108983448B CN 201810500841 A CN201810500841 A CN 201810500841A CN 108983448 B CN108983448 B CN 108983448B
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- cantilever
- screen
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- probe
- supporting platform
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 239000000523 sample Substances 0.000 claims abstract description 52
- 238000007689 inspection Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the technical field of screen detection, and particularly discloses a screen detection device which comprises a supporting platform, a supporting seat arranged on the supporting platform, a carrying seat arranged on the supporting seat, a light-emitting mechanism, a probe assembly and an information acquisition mechanism, wherein the supporting seat is arranged on the supporting platform; the light-emitting mechanism is arranged below the carrier and is arranged on the supporting platform; the probe assembly is positioned above the carrier seat and can move up and down, and comprises a cantilever probe carrier plate and a cantilever probe, wherein the cantilever probe is arranged on the cantilever probe carrier plate; the information acquisition mechanism is located the top of carrying the seat, and information acquisition mechanism can gather the information on the screen. The cantilever probes on the cantilever probe carrier plate are contacted with the screen on the carrier seat and are abutted to detection points on the screen, the two cantilever probes are conducted, the light emitting mechanism emits laser to irradiate on the screen, the information collecting mechanism collects light rays passing through the screen, image information is analyzed, and uniformity and stability of screen imaging are determined.
Description
Technical Field
The invention relates to the technical field of screen detection, in particular to a screen detection device.
Background
Along with the continuous development of information technology, the screen display system is widely applied to places such as communication, education, traffic, studio and the like, and plays an important role in providing shared information, decision support and situation display. In the use process of the screen, users want to obtain good display effects of high resolution, high brightness and the like, and the performance of the screen can influence the display effect of the display unit, so that the optical parameters of the screen generally need to be checked before the screen is put into use.
Conventionally, two modes are adopted to solve, one is to directly put screen supplies on the wall of the system, and if a problem is found, the screen is exchanged; the other is screen detection by hand-held detection equipment in a sampling form, or direct sampling visual inspection. However, the visual angle difference reject ratio of the screen incoming material is about 10% -20%, the comprehensive and efficient detection means are lacked by adopting the detection mode, and the handheld detection mode has poor positioning precision, low efficiency and large detection error, so that the rear end discovers poor performance of the optical machine and the screen, the waste of resources of manpower and material resources is caused, and the product cost is increased.
Therefore, a screen detection device is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a screen detection device which has the characteristics of high efficiency, convenience and detection accuracy.
To achieve the purpose, the invention adopts the following technical scheme:
the screen detection device comprises a supporting platform, a supporting seat arranged on the supporting platform and a carrying seat arranged on the supporting seat and used for carrying a screen; further comprises:
the light-emitting mechanism is positioned below the carrier seat and is arranged on the supporting platform;
the probe assembly is positioned above the carrier seat and can move up and down, and comprises a cantilever probe carrier plate and cantilever probes, wherein the cantilever probes are arranged on the cantilever probe carrier plate;
the information acquisition mechanism is located above the carrier seat and can acquire information on a screen.
The cantilever probes on the cantilever probe carrier plate are contacted with a screen on the carrier seat and are abutted on detection points on the screen, the two cantilever probes are conducted, the light emitting mechanism emits laser to irradiate the screen, the information collecting mechanism collects light rays passing through the screen, and image information is analyzed to determine uniformity and stability of screen imaging; the mechanism does not need manual handheld equipment for detection, does not need to put a screen on a system wall, improves the detection efficiency, and has the characteristics of high efficiency and convenience.
Preferably, the device further comprises a cantilever and a cantilever support, wherein the cantilever support is arranged on the supporting platform; the cantilever is L-shaped, the cantilever comprises a horizontal part and a vertical part, the horizontal part can be arranged on the cantilever support in a back-and-forth moving way, and the cantilever probe carrier plate can be arranged on the vertical part in a vertical moving way. The cantilever probe carrier plate can be arranged in a vertical and back-and-forth movement way, so that the cantilever probe can be abutted on a screen.
Preferably, the device further comprises a cantilever beam support, wherein the cantilever beam support comprises a cantilever beam and two first support plates vertically arranged at the bottom of the cantilever beam, and the information acquisition mechanism is arranged on the cantilever beam in a manner of being capable of moving left and right. The information acquisition mechanism can move left and right to enable the information acquisition mechanism to move to the upper side of the screen when the screen is detected, and the screen is convenient to disassemble and assemble on the carrier when the screen does not need to be detected.
Preferably, the information acquisition means includes a beam profile camera and a photodiode, each of which is provided on the cantilever so as to be movable left and right.
Preferably, the light emitting mechanism comprises a laser emitter, a collecting lens and an aperture are further arranged on the supporting seat, the collecting lens and the aperture are coaxially arranged, and a light beam emitted by the laser emitter can penetrate through the collecting lens and the aperture to irradiate a screen. The condenser lens can focus the laser emitted by the laser emitter and then irradiate the screen.
Preferably, the supporting platform is provided with a light-emitting mechanism supporting seat, the light-emitting mechanism supporting seat is provided with a first air cylinder, the output end of the first air cylinder is connected with a mounting plate, and the laser transmitter is mounted on the mounting plate.
Preferably, the device further comprises a mounting platform, wherein the first supporting plate is mounted on the mounting platform; the sliding rail is arranged on the mounting platform, a sliding block is arranged at the bottom of the supporting platform, the sliding block is arranged on the sliding rail in a sliding manner, and the supporting platform can slide back and forth; the positioning mechanism comprises a positioning seat and a positioning pin, wherein the positioning seat is arranged on the mounting platform, the positioning pin can be arranged on the positioning seat in a back-and-forth movable mode, and one end of the positioning pin is connected with the supporting platform.
Preferably, the cantilever support is provided with a second cylinder, an output end of the second cylinder is connected with the horizontal portion, the vertical portion is provided with a third cylinder, and an output end of the third cylinder is connected with the cantilever probe carrier plate.
Preferably, an electric cylinder is arranged on the cantilever beam, and the beam profile camera and the photodiode are connected to the output end of the electric cylinder.
Preferably, an adjustment mechanism is connected to the photodiode, the adjustment mechanism being capable of adjusting an angle of the photodiode, the adjustment mechanism being provided on the cantilever so as to be capable of moving left and right.
The beneficial effects of the invention are as follows: the cantilever probes on the cantilever probe carrier plate are contacted with the screen on the carrier seat and are abutted on detection points on the screen, the two cantilever probes are conducted, the light emitting mechanism emits laser to irradiate the screen, the information collecting mechanism collects light rays passing through the screen, image information is analyzed, and uniformity and stability of screen imaging are determined; the mechanism does not need manual handheld equipment for detection, does not need to put a screen on a system wall, improves the detection efficiency, and has the characteristics of high efficiency and convenience.
Drawings
Fig. 1 is a schematic structural diagram of a screen detection device provided by the invention.
In the figure:
11. a support platform; 12. a laser emitter; 13. a condenser; 14. an aperture; 15. a carrier; 16. a cantilever probe carrier plate; 17. a cantilever support; 18. a cantilever; 19. a support base; 191. a support plate; 192. a second support plate; 20. a beam profile camera; 21. a photodiode; 22. an adjusting mechanism; 23. a cantilever beam; 24. a first support plate; 25. a light emitting mechanism support base; 26. a positioning mechanism; 261. a positioning seat; 262. a positioning pin; 27. a slide block; 28. a slide rail.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment discloses a screen detection device, which includes a supporting platform 11, a supporting seat 19 disposed on the supporting platform 11, a carrying seat 15 disposed on the supporting seat 19, a light emitting mechanism, a probe assembly, an information acquisition mechanism, a cantilever 18, a cantilever support 17, a mounting platform (not shown in the figure), a positioning mechanism 26 and a cantilever support; the carrying seat 15 is used for carrying a screen, the light-emitting mechanism is positioned below the carrying seat 15, and the light-emitting mechanism can be vertically movably arranged on the supporting platform 11; a probe assembly is located above the carrier base 15, the probe assembly being capable of moving up and down, the probe assembly comprising a cantilever-probe carrier plate 16 and cantilever probes (not shown) disposed on the cantilever-probe carrier plate 16; the information acquisition mechanism is located the top of carrying seat 15, and the information acquisition mechanism can gather the information on the screen.
The cantilever probes on the cantilever-probe carrier plate 16 are in contact with the screen on the carrier seat 15 and are abutted on detection points on the screen, the two cantilever probes are conducted, the light emitting mechanism emits laser to irradiate on the screen, the information collecting mechanism collects light rays passing through the screen, and image information is analyzed to determine uniformity and stability of screen imaging; the mechanism does not need manual handheld equipment for detection, does not need to put a screen on a system wall, improves the detection efficiency, and has the characteristics of high efficiency and convenience.
The support base 19 includes a support plate 191 and two second support plates 192, the two second support plates 192 being vertically mounted on the support platform 11, the support plate 191 being mounted on top of the two second support plates 192. The carrier 15 is mounted on a support plate 191. A light emitting mechanism support seat 25 is mounted on the support platform 11 below the support plate 191. The luminous mechanism comprises a laser emitter 12, a first cylinder is arranged on a luminous mechanism supporting seat 25, the output end of the first cylinder is connected with a mounting plate, the laser emitter 12 is mounted on the mounting plate, the first cylinder can drive the laser emitter 12 to move up and down, and the first cylinder can finely adjust the position of the laser emitter 12. One of the second support plates 192 is provided with a condenser lens 13 and an aperture 14, the condenser lens 13 is disposed coaxially with the aperture 14, and a light beam emitted from the laser emitter 12 can pass through the condenser lens 13 and the aperture 14 to be irradiated onto a screen. The condenser lens 13 can focus the laser light emitted from the laser emitter 12 and then irradiate the screen.
The cantilever 18 is L-shaped, the cantilever 18 comprises a horizontal part and a vertical part, a second cylinder is arranged on the cantilever support 17, the output end of the second cylinder is connected with the horizontal part, and the second cylinder can drive the cantilever 18 to move forwards and backwards; the vertical part is provided with a third cylinder, and the output end of the third cylinder is connected with the cantilever probe carrier plate 16; the third cylinder can drive the cantilever-probe carrier plate 16 up and down. The cantilever-probe carrier plate 16 is movable up and down, back and forth, enabling the cantilever-probe to abut against the screen.
The cantilever beam bracket comprises a cantilever beam 23 and two first support plates 24 vertically arranged at the bottom of the cantilever beam 23, wherein the first support plates 24 are vertically arranged on the mounting platform; the information acquisition mechanism comprises a beam profile camera 20 and a photodiode 21; the photodiode 21 is connected with an adjusting mechanism 22, and the adjusting mechanism 22 can adjust the angle of the photodiode 21 so that the photodiode 21 can receive laser beams with different angles; the cantilever beam 23 is provided with an electric cylinder, and the beam profile camera 20 and the adjusting mechanism 22 are both connected to the output end of the electric cylinder, and the electric cylinder can drive the beam profile camera 20 and the photodiode 21 to move left and right on the cantilever beam 23. The information collection mechanism can be arranged in a left-right moving way, and can selectively move the beam profile camera 20 and the photodiode 21 to the upper part of the screen when the screen is detected, and can move to one side when the screen is not detected, so that the screen can be conveniently dismounted on the carrier 15.
The cantilever probe is used for supplying power to lighten the screen, the laser transmitter 12 penetrates the screen, the photodiode 21 can receive the light beam penetrating the screen, the photodiode 21 converts the light signal into an electric signal, and the light signal penetrating the screen is measured according to the intensity of the electric signal, so that the light transmittance of the screen is detected. The beam profile camera 20 photographs through an optical glass (not shown) disposed therebelow, and software performs uniformity detection of the image photographed by the beam profile camera 20.
The mounting platform is provided with a sliding rail 28, the bottom of the supporting platform 11 is provided with a sliding block 27, the sliding block 27 is slidably arranged on the sliding rail 28, and the supporting platform 11 can slide back and forth; moving the support platform 11 back and forth enables the screen on the carrier 15 to be located directly under the beam profile camera 20 or photodiode 21.
The positioning mechanism 26 comprises a positioning pin 262 and a positioning seat 261, the positioning seat 261 is arranged on the mounting platform, the positioning pin 262 is arranged on the positioning seat 261 in a back-and-forth movable manner, and one end of the positioning pin 262 is connected with the front end of the supporting platform 11. The positioning pin 262 is in threaded connection with the positioning seat 261, and the position of the supporting platform 11 is adjusted back and forth by rotating the positioning pin 262, so that the positioning pin 262 not only can adjust the position of the supporting platform 11, but also can prevent the supporting platform 11 from moving back and forth after the position of the supporting platform 11 is adjusted.
The applicant states that the present invention has been described by way of example in the above embodiments, and it is apparent that the specific implementation of the present invention is not limited by the above manner, and that various insubstantial modifications made by the concept and technical solution of the present invention are within the scope of the present invention as long as they are adopted, or they are directly applied to other occasions without any modifications.
Claims (10)
1. The utility model provides a screen detection device, includes supporting platform (11), set up in supporting seat (19) of supporting platform (11) and set up in be used for carrying on supporting seat (19) carrier (15) of screen, its characterized in that still includes:
the light-emitting mechanism is positioned below the carrying seat (15) and is arranged on the supporting platform (11);
a probe assembly located above the carrier (15), the probe assembly being movable up and down, the probe assembly comprising a cantilever-probe carrier plate (16) and cantilever-probes, the cantilever-probes being disposed on the cantilever-probe carrier plate (16);
the information acquisition mechanism is positioned above the carrier seat (15) and can acquire information on a screen;
the cantilever probe on the cantilever probe carrier plate (16) is contacted with the screen on the carrier seat (15), and is abutted on a detection point on the screen, the cantilever probe is conducted, the light emitting mechanism emits laser to irradiate on the screen, and the information acquisition mechanism acquires light rays passing through the screen.
2. Screen detection device according to claim 1, further comprising a cantilever (18) and a cantilever mount (17);
the cantilever support (17) is arranged on the supporting platform (11);
the cantilever (18) is L-shaped, the cantilever (18) comprises a horizontal part and a vertical part, the horizontal part can be arranged on the cantilever support (17) in a back-and-forth moving way, and the cantilever probe carrier plate (16) can be arranged on the vertical part in a vertical moving way.
3. The screen detection device according to claim 1, further comprising a cantilever beam bracket including a cantilever beam (23) and two first support plates (24) vertically disposed at the bottom of the cantilever beam (23), the information collection mechanism being disposed on the cantilever beam (23) so as to be movable left and right.
4. A screen detection apparatus according to claim 3, wherein the information acquisition mechanism includes a beam profile camera (20) and a photodiode (21), the beam profile camera (20) and the photodiode (21) being provided on the cantilever (23) so as to be movable left and right.
5. The screen detection device according to claim 1, wherein the light emitting mechanism comprises a laser emitter (12), a condenser lens (13) and a diaphragm (14) are further arranged on the supporting seat (19), the condenser lens (13) and the diaphragm (14) are coaxially arranged, and a light beam emitted by the laser emitter (12) can pass through the condenser lens (13) and the diaphragm (14) to irradiate the screen.
6. The screen detection device according to claim 5, wherein a light emitting mechanism supporting seat (25) is arranged on the supporting platform (11), a first air cylinder is arranged on the light emitting mechanism supporting seat (25), an output end of the first air cylinder is connected with a mounting plate, and the laser transmitter (12) is mounted on the mounting plate.
7. A screen inspection apparatus according to claim 3, further comprising:
a mounting platform on which the first support plate (24) is mounted;
the sliding rail (28) is arranged on the mounting platform, a sliding block (27) is arranged at the bottom of the supporting platform (11), the sliding block (27) is arranged on the sliding rail (28) in a sliding manner, and the supporting platform (11) can slide back and forth;
the positioning mechanism (26) comprises a positioning seat (261) and a positioning pin (262), wherein the positioning seat (261) is arranged on the mounting platform, the positioning pin (262) is arranged on the positioning seat (2621) in a back-and-forth movable mode, and one end of the positioning pin (262) is connected with the supporting platform (11).
8. Screen detection device according to claim 2, characterized in that the cantilever support (17) is provided with a second cylinder, the output end of which is connected with the horizontal part, the vertical part is provided with a third cylinder, the output end of which is connected with the cantilever-probe carrier plate (16).
9. Screen detection device according to claim 4, characterized in that an electric cylinder is provided on the cantilever (23), and that the beam profile camera (20) and the photodiode (21) are both connected to the output of the electric cylinder.
10. The screen detection device according to claim 4, wherein the photodiode (21) is connected with an adjusting mechanism (22), the adjusting mechanism (22) can adjust the angle of the photodiode (21), and the adjusting mechanism (22) is provided on the cantilever (23) so as to be movable left and right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500841.7A CN108983448B (en) | 2018-05-23 | 2018-05-23 | Screen detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810500841.7A CN108983448B (en) | 2018-05-23 | 2018-05-23 | Screen detection device |
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| Publication Number | Publication Date |
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| CN108983448A CN108983448A (en) | 2018-12-11 |
| CN108983448B true CN108983448B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810500841.7A Active CN108983448B (en) | 2018-05-23 | 2018-05-23 | Screen detection device |
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| CN108983448A (en) | 2018-12-11 |
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