CN111795808B - Display screen detection equipment - Google Patents
Display screen detection equipment Download PDFInfo
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- CN111795808B CN111795808B CN202010699700.XA CN202010699700A CN111795808B CN 111795808 B CN111795808 B CN 111795808B CN 202010699700 A CN202010699700 A CN 202010699700A CN 111795808 B CN111795808 B CN 111795808B
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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 provides display screen detection equipment which comprises a jig for placing a display screen, a feeding and discharging station and a plurality of detection stations, wherein the plurality of detection stations comprise a dark pixel detection station, a light leakage and color uniformity detection station and a Flicker detection station; the jig is provided with a positioning device matched with the non-detection surface of the display screen, so that the display screens with different sizes can be placed in the center of the jig; the dark pixel detection station comprises a light supplementing device and an image acquisition device which are positioned above the display screen; the light leakage and color uniformity detection station comprises a compression joint mechanism and an image acquisition device which are positioned above the display screen; the Flicker detection station comprises an image acquisition device positioned above the display screen. By arranging the positioning device on the jig, the display screen detection equipment disclosed by the invention can be suitable for detecting display screens with different sizes, and the practicability of the detection equipment is improved.
Description
Technical Field
The invention relates to the technical field of display screen detection equipment, in particular to detection equipment for display screen panels with different sizes.
Background
With the development of society, a display screen is an electronic component which is widely applied, is applied to various industries such as aerospace, household or business appliances and the like, and is closely related to the daily life of people. The display screen can provide visual interactive pictures for users and also can provide an operation interface for automatic control, and is an indispensable electronic element in the current society. However, in the prior art, if the quality of the display screen is still poor after the display screen is shipped, many adverse effects are caused, for example, the display screen is not bright or has uneven brightness after being powered on, or the display screen has problems of light leakage or uneven color, and the like, which all affect the operation and use of users.
In order to ensure good performance of the display screen and improve the yield of products, the display screen needs to be detected in each production link or before leaving the factory, so that abnormal display of the display screen is prevented, and defective products are prevented from flowing into the next production link or a client. Because the size of display screen is not of uniform size, the check out test set among the prior art generally only detects to the display screen of the same size, if like this if manufacturing enterprise produces the display screen that has multiple size simultaneously, just need purchase a plurality of check out test sets, has greatly increased the cost of enterprise. Therefore, how to improve the practicality of the detection equipment, the same set of detection equipment can be compatible with the detection of the display screens with different sizes, and the enterprise cost is reduced, so that the detection equipment is one of the hotspot problems in the current research and development.
Disclosure of Invention
The invention provides a display screen detection device which can be suitable for detecting display screens with different sizes and improve the practicability of the detection device.
Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.
In order to achieve one or a part of or all of the above or other purposes, an embodiment of the invention provides a display screen detection apparatus including a fixture for placing a display screen, a loading and unloading station, and a plurality of detection stations. The detection stations comprise a dark pixel detection station, a light leakage and color uniformity detection station and a Flicker detection station. The jig is provided with a positioning device matched with the non-detection surface of the display screen, so that the display screens with different sizes can be placed in the center of the jig; the dark pixel detection station comprises a light supplementing device and an image acquisition device which are positioned above the display screen; the light leakage and color uniformity detection station comprises a crimping mechanism and an image acquisition device which are positioned above the display screen; the Flicker detection station comprises an image acquisition device positioned above the display screen.
Foretell display screen check out test set still includes darkroom mechanism, darkroom mechanism includes three independent darkroom at least, corresponds respectively dark pixel detects station, light leak and colour homogeneity and detects station and Flicker and detect the station, can realize the zero visible light input in the external world of above-mentioned three station, has avoided above-mentioned three station to receive the interference of external visible light when detecting to lead to the inaccuracy that detects.
The positioning device comprises a positioning hole arranged on the jig, and a positioning pin matched with the positioning hole is arranged on the non-detection surface of the display screen.
The light supplementing device comprises at least two strip-shaped lamps which are parallel to each other, and light emitted by the strip-shaped lamps is scattered light.
The image acquisition device comprises a camera adjusting support and a camera, wherein the camera adjusting support can adjust the camera to move up and down on the surface of the display screen in a vertical mode and/or adjust the camera to move horizontally on the surface of the display screen in a parallel mode, so that the camera can detect all parts of the display screen.
The crimping mechanism comprises an upper frame, a lower frame, crimping arms and a lifting support, the upper frame is elastically connected with the lower frame, the crimping arms are connected with the middle areas of two sides of the upper frame, and the lifting support drives the crimping arms to move in the direction perpendicular to the display screen, so that the crimping mechanism is driven to lift integrally.
The surface of the upper frame is provided with a plurality of slotted holes, the lower frame is provided with a plurality of elastic connecting pieces, one ends of the elastic connecting pieces are fixedly connected with the lower frame, and the other ends of the elastic connecting pieces are clamped in the slotted holes in the surface of the upper frame.
The diameters of the plurality of slotted holes are larger than the diameters of the parts, in the slotted holes, of the elastic connecting pieces in the clamped mode, so that the lower frame has a moving gap in the horizontal direction relative to the upper frame, certain adjusting space is reserved when the lower frame conducts pressure welding on the display screen, and the lower frame and the display screen can be better matched.
The display screen detection equipment further comprises an equipment outer cover, and the jig, the feeding and discharging station and the detection stations are all arranged in the closed space formed by the equipment outer cover.
The device housing is provided with a plurality of openable doors, the doors are connected with the device housing through hinges, the hinges are located on the inner side of the device housing, and light blocking strips are arranged at joints of the doors and the device housing and are arranged on the inner side of the device housing.
The display screen detection equipment provided by the embodiment of the invention has the beneficial effects that: 1) the positioning device is arranged on the jig and is matched with the non-detection surface of the display screen, so that the display screen detection equipment disclosed by the invention can be suitable for detecting the display screens with different sizes, and the display screens with different sizes can be installed only by matching the positioning pin on the non-detection surface of the display screen with the positioning hole on the jig, so that the subsequent detection process is facilitated, and the practicability of the detection equipment is improved; 2) when the display screen is detected, the detection is carried out under the condition of no external stray light interference, the darkroom mechanism comprises three mutually independent darkrooms, the three darkrooms are mutually independent and do not interfere with each other while the three stations are ensured not to be interfered by external light during detection, and the accuracy and the independence of each detection station are ensured; 3) when the display screen is detected on the light leakage and color uniformity detection station, the display screen needs to be flattened by the pressing mechanism, and the lower frame possibly has the condition that the edge of the display screen cannot be aligned at one time during flattening; 4) according to the invention, the equipment outer cover is connected with the door through the hinge, the hinge is arranged on the inner side of the equipment outer cover, and the light blocking strip is arranged at the joint of the equipment outer cover and the door, so that the whole detection equipment is positioned in a closed space during detection, the interference of external visible light is further eliminated, and the detection accuracy of the equipment is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a top view of a station structure of a display screen inspection apparatus according to a first embodiment of the present invention.
Fig. 2 is a perspective view of a station structure of a display screen inspection apparatus according to a first embodiment of the present invention.
Fig. 3 is a perspective view of a darkroom mechanism of a display screen inspection apparatus according to a first embodiment of the present invention.
Fig. 4 is a perspective view of a dark pixel detection station of the display screen detection apparatus according to the first embodiment of the present invention.
Fig. 5 is a perspective view of a light leakage and color uniformity detection station of a display screen detection apparatus according to a first embodiment of the invention.
Fig. 6 is a perspective view of a pressing mechanism on a light leakage and color uniformity detection station of the display screen detection apparatus according to the first embodiment of the present invention.
Fig. 7 is a perspective view of the Flicker detection station of the display screen detection apparatus according to the first embodiment of the present invention.
Fig. 8 is a schematic view of the overall structure of the display screen detection apparatus according to the first embodiment of the present invention.
Reference numerals: 1-a jig; 2-a loading and unloading station; 3-dark pixel detection station, 31, 32-bar lamp, 33-camera, 34-camera adjusting bracket; 4-light leakage and color uniformity detection station, 41-crimping mechanism, 411-upper frame, 412-lower frame, 413-crimping arm, 414-lifting support, 415-spring, 416-slotted hole, 42-image acquisition device, 421-camera adjusting support, 422-camera; 5-Flicker detection station, 51-image acquisition device, 511-camera adjusting bracket and 512-camera; 6-darkroom mechanism, 61-darkroom, 62-lifting shaft; 7-rotating disc, 8-cam divider, 9-equipment housing and 91-door.
Detailed Description
The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are referred to only in the direction of the attached drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting.
Fig. 1 and fig. 2 are schematic diagrams of station structures of a display screen detection device according to a first embodiment of the present invention. Referring to fig. 1 and fig. 2, the display screen detection apparatus of the present embodiment includes a fixture 1 for placing a display screen, a loading and unloading station 2, and a plurality of detection stations. The plurality of detection stations in this embodiment include, for example, a dark pixel detection station 3, a light leakage and color uniformity detection station 4, and a Flicker detection station 5, but are not limited thereto, and detection stations with other functions may also be set according to actual detection requirements in other embodiments.
Fig. 3 is a perspective view of a darkroom mechanism 6 of a display screen inspection apparatus according to a first embodiment of the present invention. Please refer to fig. 3. Because the detection to the display screen needs to be detected under the condition of no external light interference in this embodiment, therefore, the display screen detection equipment of this embodiment still includes darkroom mechanism 6, darkroom mechanism 6 includes three independent darkroom 61 at least, corresponds respectively dark pixel detection station 3, light leak and colour homogeneity detection station 4 and Flicker detection station 5 can realize the zero visible light input in the external world of above-mentioned three stations, have avoided above-mentioned three stations to receive the interference of external visible light when detecting and have leaded to the inaccuracy that detects. When the three stations are detected, the darkroom mechanism 6 descends through the lifting shaft 62 to completely cover the stations to form a lighttight closed space, after the detection is finished, the darkroom mechanism 6 is lifted up by the lifting shaft 62, and the jig and the display screen on the jig are sent to the next detection station.
Referring to fig. 1 to 3, the loading and unloading station 2, the dark pixel detection station 3, the light leakage and color uniformity detection station 4, and the Flicker detection station 5 in this embodiment form a four-station detection device with an included angle of 90 ° between stations, for example, but not limited thereto, in other embodiments, other multi-station detection devices may also be used, and the included angle between stations changes with the change of the number of stations. The four stations of the present embodiment may be disposed on a turntable 7 having a disk shape, but is not limited thereto, and in other embodiments, the turntable 7 may have a rectangular shape, a square shape, or the like. The turntable 7 is driven to rotate by a driving device, so that the purpose of sequentially feeding the jig and the display screen on the jig into the four stations is achieved, and the driving device can be a cam divider 8, for example.
The jig 1 of the embodiment is provided with a positioning device matched with the non-detection surface of the display screen, so that the display screens with different sizes can be placed in the center of the jig 1. Foretell positioner is provided with on the non-detection face of display screen and locating hole assorted locating pin including setting up the locating hole on tool 1 for example, through the installation that realizes the display screen in pegging graft the locating pin to the locating hole, can reach the location accuracy, simple to operate again. The arrangement position and the number of the positioning pins are not particularly limited, the positioning pins can be adjusted according to actual conditions, and the display screen can be positioned at the central position of the jig only by ensuring when being installed.
Referring to fig. 1 and fig. 2, during detection, the jig 1 is placed on the loading and unloading station 2, and then the display screen to be detected is fixed on the jig 1, so that the loading operation is completed; after the feeding is finished, the jig 1 and the display screen on the jig are sequentially sent to the dark pixel detection station 3, the light leakage and color uniformity detection station 4 and the Flicker detection station 5 for detection; and after the detection is finished, carrying out blanking operation.
The feeding and discharging operations of the embodiment are all completed on the same station, namely the feeding and discharging station 2. The jig 1 and the display screen are loaded at the loading and unloading station 2, and the loading operation may be, for example, manual loading or automatic loading, and the present invention is not particularly limited. It is rotatory by 8 drive turntables of cam wheel splitter after the material loading is accomplished, send into dark pixel detection station 3 with tool 1 and display screen in proper order, light leak and colour homogeneity detection station 4 and Flicker detection station 5 detect, get back to last unloading station 2 at last again and carry out the unloading operation, this kind is put material loading and unloading at the mode of same station, can practice thrift the spatial structure and the cost of equipment, the convenience is operated in same position again, practices thrift the human cost.
Fig. 4 is a perspective view of a dark pixel detection station of the display screen detection apparatus according to the first embodiment of the present invention. Referring to fig. 4, the dark pixel detection station 3 of the present embodiment includes a light supplement device and an image acquisition device located above the display screen. The light supplement device is, for example, two strip lamps 31 and 32 parallel to each other, the light emitted by the strip lamps 31 and 32 is scattered light, in this embodiment, the strip lamps 31 and 32 are, for example, fan-shaped light with a wavelength of 400mm and a scattering angle of 50 °, the vertical height of the two strip lamps 31 and 32 from the detection surface of the display screen is between 50 and 215mm, and the distance between the two strip lamps 31 and 32 and the detection center of the display screen is 120mm, but not limited thereto, in other embodiments, the number of the strip lamps may be multiple, and the wavelength, the scattering angle, the height from the display screen, and the distance from the detection center of the display screen may be adjusted according to actual detection needs, and the present invention is not particularly limited.
The image capturing device includes a camera 33 and a camera adjusting bracket 34, where the camera adjusting bracket 34 can adjust the camera 33 to move up and down perpendicular to the surface of the display screen and/or adjust the camera 33 to move horizontally parallel to the surface of the display screen, so that the camera 33 can detect all positions of the display screen, and the camera adjusting bracket 34 in this embodiment may be a manual adjusting bracket or a mechanical automatic adjusting bracket, and the present invention is not limited in particular. The camera 33 of the present embodiment is, for example, positioned right above the detection center of the display screen and has a vertical distance of 850mm from the surface of the display screen; the camera adjustment bracket 34 can adjust the vertical distance of the camera 33 between a range of 850 + -50 mm in a direction perpendicular to the display screen surface, and finely adjust the camera 33 to produce X-axis and Y-axis displacements of + -5 mm in a horizontal direction centered on the reference position in a direction parallel to the display screen surface.
During detection, the jig 1 and the display screen are sent into the dark pixel detection station 3, then the display screen is electrified and lightened, the camera 33 detects the lightened display screen, the detection is sent into the background analysis system, and whether dark pixels exist in the display screen is analyzed and recorded. When the camera 33 performs detection, the bar lamps 31 and 32 supplement light to the display screen, so that the camera 33 performs detection under a sufficient illumination condition; the camera adjusting bracket 34 can also adjust the displacement of the camera 33 manually or automatically to ensure that the camera 33 is located at the optimal detection position.
Fig. 5 is a perspective view of a light leakage and color uniformity detection station 4 of the display screen detection apparatus according to the first embodiment of the present invention. Referring to fig. 5, the light leakage and color uniformity detecting station 4 of the present embodiment includes a pressing mechanism 41 and an image capturing device 42 located above the display screen. Fig. 6 is a perspective view of a pressing mechanism 41 of the light leakage and color uniformity detecting station 4 of the display screen detecting apparatus according to the first embodiment of the present invention. Referring to fig. 6, the pressing mechanism 41 of the present embodiment includes an upper frame 411, a lower frame 412, a pressing arm 413, and a lifting bracket 414, where the upper frame 411 is elastically connected to the lower frame 412, the pressing arm 413 is connected to a middle area of two sides of the upper frame 411, and the lifting bracket 414 drives the pressing arm 413 to move in a direction perpendicular to the display screen, so as to drive the pressing mechanism 41 to lift and lower integrally.
Referring to fig. 6, the upper frame 411 and the lower frame 412 in the present embodiment are connected by a spring 415, for example. The connection method may be, for example, that the surface of the upper frame 411 is provided with a plurality of slots 416, the lower frame 412 is provided with a spring 415, one end of the spring 415 is fixedly connected with the lower frame 412, for example, welded, and the other end is clamped in the slot 416 on the surface of the upper frame 411. When the display screen is detected on the light leakage and color uniformity detection station, the pressing operation of the display screen needs to be performed through the pressing mechanism 41, when the display screen is pressed flat, the lower frame 412 may have a situation that the edge of the display screen cannot be aligned at one time, the lower frame 412 needs to be slightly movable and adjusted to be aligned with the edge of the display screen, for this purpose, the diameter of the plurality of slots 416 on the upper frame 411 in the embodiment is larger than the diameter of the portion, clamped in the slots 416, of the spring 415, so that the portion, positioned in the slots 416, of the spring 415 can move in the slots 416, the fact that the lower frame 412 can have a moving gap in the horizontal direction relative to the upper frame 411 is achieved, and a certain adjusting space is left for the lower frame 412 to press the display screen.
Referring to fig. 5, the image capturing device 42 of the light leakage and color uniformity detecting station 4 of the present embodiment includes a camera adjusting bracket 421 and a camera 422. Because the detection of the light leakage and color uniformity detection station 4 may need to use cameras of different specifications to collect images, in the light leakage and color uniformity detection station 4 of this embodiment, the cameras 422 located above the display screen are, for example, cameras of two different specifications and models. The two cameras of the present embodiment are, for example, positioned right above the detection center of the display screen and have a vertical distance of 800mm from the surface of the display screen; the camera adjusting bracket 421 can adjust the vertical distance of the camera 422 between the range of 800 ± 100mm in the direction perpendicular to the display screen surface, and finely adjust the camera 422 to produce X-axis and Y-axis displacements of ± 5mm in the horizontal direction centered on the reference position in the direction parallel to the display screen surface; in addition, the camera adjustment support 421 at this station can also rotate the camera 422 in a direction perpendicular to the display screen surface, for example, by 3 °.
Fig. 7 is a perspective view of the Flicker detection station of the display screen detection apparatus according to the first embodiment of the present invention. Referring to fig. 7, the Flicker detection station 5 of the present embodiment includes an image capturing device 51 located above the display screen. The image capture device includes a camera adjustment bracket 511 and a camera 512. The camera 512 of this embodiment is, for example, positioned right above the detection center of the display screen and at a vertical distance of 670mm from the surface of the display screen; the camera adjustment bracket 511 may adjust the vertical distance of the camera 512 between the range of 670 ± 100mm in a direction perpendicular to the display screen surface, and fine-tune the camera 512 to produce X-axis and Y-axis displacements of ± 5mm in a horizontal direction centered on the reference position in a direction parallel to the display screen surface.
Fig. 8 is a schematic view of the overall structure of the display screen detection apparatus according to the first embodiment of the present invention. Referring to fig. 8, the display screen detection apparatus of the present embodiment further includes an apparatus housing 9, and the jig 1, the loading and unloading station 2, and the plurality of detection stations are all disposed in a closed space formed by the apparatus housing 9. For making things convenient for the staff operation, equipment dustcoat 9 is provided with the door 91 that the several can open and shut, door 91 passes through the hinge and is connected with equipment dustcoat 9, and the staff can open door 91 and go up unloading or look over the display screen, closes door 91 after the operation is accomplished, and equipment detects. In order to ensure the light-tightness of the whole equipment, the hinge in this embodiment is located inside the equipment enclosure 9, for example, and the joint between the door 91 and the equipment enclosure is further provided with a light-blocking strip which is located inside the equipment enclosure 9, so that when the door is closed, the inside of the whole equipment enclosure 9 is in a completely light-tight state, and the detection accuracy of the detection station inside the equipment enclosure 9 is further ensured.
In summary, the display screen detection equipment in the embodiment of the invention is provided with the positioning device on the jig 1 to be matched with the non-detection surface of the display screen, so that the display screen detection equipment can be suitable for detecting display screens with different sizes, and the display screens with different sizes can be installed only by matching the positioning holes on the non-detection surface of the display screen with the positioning pins on the jig, thereby facilitating the subsequent detection process and improving the practicability of the detection equipment; when the display screen is detected, the detection needs to be carried out under the condition of no external stray light interference, the darkroom mechanism 6 comprises three mutually independent darkrooms 61, the three darkrooms 61 are mutually independent and do not interfere with each other while the three stations are ensured not to be interfered by external light during detection, and the accuracy and the independence of each detection station are ensured; when the display screen is detected on the light leakage and color uniformity detection station 4, the display screen needs to be flattened by the pressing mechanism 41, and when the display screen is flattened, the lower frame 412 may have a situation that the edge of the display screen cannot be aligned at one time, so that the diameter of the slot 416 on the upper frame 411 is larger than the diameter of the part, clamped in the slot, of the elastic connecting piece, the lower frame 412 has a moving gap in the horizontal direction relative to the upper frame 411, and the lower frame 412 can be adjusted to a certain extent when the display screen is pressed, and the matching between the lower frame 412 and the display screen is better; according to the invention, the equipment outer cover 9 and the door 91 are connected through the hinge, the hinge is arranged on the inner side of the equipment outer cover 9, and the light blocking strip is arranged at the joint of the equipment outer cover 9 and the door 91, so that the whole detection equipment is further ensured to be in a closed space during detection, the interference of external visible light is further eliminated, and the detection accuracy of the equipment is improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, which is defined by the claims and the description of the invention, and all simple equivalent changes and modifications made therein are also within the scope of the invention. Moreover, it is not necessary for any embodiment or claim of the invention to address all of the objects, advantages, or features disclosed herein. Furthermore, the terms "first," "second," and the like in the description or in the claims are used for naming elements or distinguishing between different embodiments or ranges, and are not used for limiting upper or lower limits on the number of elements.
Claims (9)
1. A display screen detection device comprises a jig for placing a display screen, a feeding and discharging station and a plurality of detection stations, and is characterized in that the detection stations comprise a dark pixel detection station, a light leakage and color uniformity detection station and a Flicker detection station; wherein the content of the first and second substances,
the jig is provided with a positioning device matched with the non-detection surface of the display screen, so that the display screens with different sizes can be placed in the center of the jig;
the dark pixel detection station comprises a light supplementing device and an image acquisition device which are positioned above the display screen;
the light leakage and color uniformity detection station comprises a crimping mechanism and an image acquisition device which are positioned above the display screen;
the Flicker detection station comprises an image acquisition device positioned above the display screen;
the crimping mechanism comprises an upper frame, a lower frame, crimping arms and a lifting support, the upper frame is elastically connected with the lower frame, the crimping arms are connected with the middle areas of two sides of the upper frame, and the lifting support drives the crimping arms to move in the direction perpendicular to the display screen, so that the crimping mechanism is driven to lift integrally.
2. The display screen detection device of claim 1, further comprising a darkroom mechanism, wherein the darkroom mechanism comprises at least three independent darkrooms, the darkroom mechanism corresponds to the dark pixel detection station, the light leakage and color uniformity detection station and the Flicker detection station respectively, and external zero visible light input of the three stations can be achieved.
3. The display screen detection device according to claim 1, wherein the positioning device comprises a positioning hole arranged on the jig, and a positioning pin matched with the positioning hole is arranged on the non-detection surface of the display screen.
4. The display screen detection device according to claim 1, wherein the light supplement device comprises at least two strip-shaped lamps parallel to each other, and light emitted by the strip-shaped lamps is scattered light.
5. The display screen detection apparatus of claim 4, wherein the image capturing device comprises a camera adjusting bracket and a camera, and the camera adjusting bracket can adjust the camera to move up and down perpendicular to the display screen surface and/or adjust the camera to move horizontally parallel to the display screen surface.
6. The display screen detection device according to claim 1, wherein a plurality of slots are formed in the surface of the upper frame, a plurality of elastic connecting pieces are arranged on the lower frame, one ends of the elastic connecting pieces are fixedly connected with the lower frame, and the other ends of the elastic connecting pieces are clamped in the slots on the surface of the upper frame.
7. The display screen detection device according to claim 6, wherein the diameters of the plurality of slots are larger than the diameter of the portion, in which the elastic connecting piece is clamped, of the slot, so that the lower frame has a movement gap in a horizontal direction relative to the upper frame.
8. The display screen detection device according to any one of claims 1 to 7, further comprising a device housing, wherein the jig, the loading and unloading station and the plurality of detection stations are all arranged in a closed space formed by the device housing.
9. The display screen detection device of claim 8, wherein the device housing is provided with a plurality of openable and closable doors, the doors are connected with the device housing through hinges, the hinges are located on the inner side of the device housing, light blocking strips are arranged at joints of the doors and the device housing, and the light blocking strips are arranged on the inner side of the device housing.
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| CN202010699700.XA CN111795808B (en) | 2020-07-17 | 2020-07-17 | Display screen detection equipment |
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| CN202010699700.XA CN111795808B (en) | 2020-07-17 | 2020-07-17 | Display screen detection equipment |
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| CN111795808B true CN111795808B (en) | 2022-06-24 |
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| CN112763185B (en) * | 2020-12-28 | 2023-07-21 | 深圳市华信信息技术服务有限公司 | Display screen detection equipment and display screen detection method |
| CN113740347A (en) * | 2021-09-06 | 2021-12-03 | 苏州精濑光电有限公司 | Method for detecting front and back surfaces of product |
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