CN213902826U - LED display screen detection imaging device - Google Patents
LED display screen detection imaging device Download PDFInfo
- Publication number
- CN213902826U CN213902826U CN202023302281.6U CN202023302281U CN213902826U CN 213902826 U CN213902826 U CN 213902826U CN 202023302281 U CN202023302281 U CN 202023302281U CN 213902826 U CN213902826 U CN 213902826U
- Authority
- CN
- China
- Prior art keywords
- display screen
- led display
- camera
- light source
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Studio Devices (AREA)
Abstract
The application provides a LED display screen detects image device includes: the LED display screen comprises a camera, a lens connected with the camera, a color filtering component arranged between the lens and the LED display screen, and a light source arranged on the light inlet side of the lens. The light of the light source irradiates on the LED display screen through the filtering vacant positions of the color filtering component; the lens is opposite to the LED display screen and receives light rays passing through the color filtering component. In the scheme of this application, the polychrome mixed light process that the LED display screen sent the colour filters the subassembly and filters into monochromatic light and gets into the camera lens. The color of the filter opposite to the camera and the lens is changed through the rotation of the color filter assembly, so that the monochromatic detection during the mixed-color lighting of the LED display screen is realized, the LED display screen is not required to be subjected to multiple monochromatic lighting, and the detection efficiency is improved.
Description
Technical Field
The application relates to the field of display screen detection, in particular to an LED display screen detection imaging device.
Background
The Micro LED or OLED display screen is integrated by a high-density LED array, and each LED of the Micro LED display screen or the OLED display screen can self-emit light. In practical application, the LED has luminous defects, so that the display screen needs to be detected.
A general detection method is to use a camera to capture a picture of a display screen in a lighted state to obtain an image of an LED. The light emitting condition of each LED when the display screen emits red, green or blue light is obtained through the image analysis module, and then the quality condition of the display screen is obtained.
However, in a general detection method, the display panel must emit monochromatic light of red, green or blue, and when the display panel lights two or three colors simultaneously, the above method cannot obtain the monochromatic light emission of the display panel, that is, the monochromatic detection when the display panel lights mixed colors cannot be completed.
SUMMERY OF THE UTILITY MODEL
The application provides a LED display screen detects image device to solve the monochromatic problem that detects when can't accomplish LED display screen colour mixture at present and light.
The application provides a LED display screen detects image device includes: the LED display screen comprises a camera, a lens connected with the camera, a color filtering component arranged between the lens and the LED display screen, and a light source arranged on the light inlet side of the lens;
the light of the light source irradiates on the LED display screen through the filtering vacant positions of the color filtering component; the lens is opposite to the LED display screen and receives light rays passing through the color filtering component.
Optionally, the color filter assembly includes a circular filter disc, a filtering vacancy and a color filter, and the filtering vacancy and the color filter are uniformly arranged on the circular filter disc; the color filter assembly performs circular motion by taking the circle center as an axis; the color filter comprises a red filter, a green filter and a blue filter.
Optionally, the light source is a coaxial light source, the coaxial light source includes a half-mirror and a light-emitting body, and light emitted by the light-emitting body is reflected to the LED display screen through the half-mirror; the camera receives the light penetrating through the half-transmitting and half-reflecting mirror.
Optionally, the LED display screen further comprises an annular light source, the annular light source is of an annular structure, the annular light source is arranged between the color filtering component and the LED display screen, and light of the annular light source irradiates the LED display screen.
Optionally, the color filter further comprises a first driving motor, and the first driving motor is electrically connected with the color filter assembly to enable the color filter assembly to perform circular motion.
Optionally, the camera further comprises a second driving motor, and the second driving motor is electrically connected with the camera to move the camera in the vertical direction.
Optionally, the camera is an area-array camera with a resolution of 151M.
Optionally, the system further comprises an image analyzer, wherein the image analyzer is connected with the camera and detects the LED display screen in the image acquired by the camera.
Optionally, the light source is a coaxial light source, the coaxial light source includes a half-mirror and a light-emitting body, and light emitted by the light-emitting body is reflected to the LED display screen through the half-mirror; the camera receives the light penetrating through the semi-transparent semi-reflecting mirror;
the LED display screen is characterized by further comprising an annular light source, wherein the annular light source is of an annular structure and is arranged between the color filtering component and the LED display screen, and light rays of the annular light source irradiate on the LED display screen;
the first driving motor is electrically connected with the color filtering component to enable the color filtering component to do circular motion;
the camera is electrically connected with the first driving motor, so that the camera moves along the vertical direction;
the camera is an area-array camera with the resolution of 151M;
the LED display screen detection system further comprises an image analyzer, wherein the image analyzer is connected with the camera and is used for detecting the LED display screen in the image acquired by the camera.
According to the above technical solution, the present application provides an LED display screen detection imaging device, including: the LED display screen comprises a camera, a lens connected with the camera, a color filtering component arranged between the lens and the LED display screen, and a light source arranged on the light inlet side of the lens. The light of the light source irradiates on the LED display screen through the filtering vacant positions of the color filtering component; the lens is opposite to the LED display screen and receives light rays passing through the color filtering component. In the scheme of this application, the polychrome mixed light process that the LED display screen sent the colour filters the subassembly and filters into monochromatic light and gets into the camera lens. The color of the filter opposite to the camera and the lens is changed through the rotation of the color filter assembly, so that the monochromatic detection during the mixed-color lighting of the LED display screen is realized, the LED display screen is not required to be subjected to multiple monochromatic lighting, and the detection efficiency is improved.
Drawings
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
Fig. 1 is a schematic structural diagram of an LED display screen detection imaging device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a color filter assembly according to an embodiment of the present disclosure.
Description of the drawings: 1. the device comprises a camera, 2, a lens, 3, a color filter component 31, a circular filter disc 32, a filter vacancy 33, a color filter, 4, a light source, 41, a half-transmitting and half-reflecting mirror 42, a luminous body, 5, a ring-shaped light source, 6, a first driving motor, 7, a second driving motor, 8 and an LED display screen.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
Referring to fig. 1, a schematic structural diagram of an LED display screen detection imaging device provided in an embodiment of the present application is shown. As can be seen from fig. 1, the LED display screen detection imaging apparatus provided in the present application specifically includes: camera 1, lens 2 connected with camera 1. The color filter component 3 is arranged between the lens 2 and the LED display screen, and the light source 4 is arranged on the light inlet side of the lens 2. The camera 1 and the lens 2 are used for shooting and imaging, the light source 4 is used for illuminating a display screen, and the color filter component 3 is used for filtering light with different wavelengths entering the lens 2.
The light of the light source 4 passes through the filter vacancy 32 of the color filter assembly 3 and irradiates on the LED display screen. The lens 2 is opposite to the LED display screen and receives light rays passing through the color filter component 3.
In practical applications, since Micro LED display screens or OLED display screens include an integrated LED array, the size of the individual LEDs constituting the LED array is very small. Especially Micro LED display screens, the size of the individual LEDs is between 1-100 μm. Therefore, in order to ensure the clear imaging of the LED, a camera with micron-sized resolution is generally adopted, the depth of field of the camera is very small, the shooting target surface of the lens 2 is arranged in parallel with the LED display screen, the camera can be ensured not to exceed the depth of field range, and the situations of image blurring and the like are avoided.
Referring to fig. 2, a schematic structural diagram of a color filter assembly according to an embodiment of the present disclosure is shown. As can be seen from fig. 2, the color filter assembly 3 includes a circular filter disk 31, a filter vacancy 32 and a color filter 33, and the filter vacancy 32 and the color filter 33 are uniformly disposed on the circular filter disk 31. In practical applications, the circular filter disk 31 may be provided with holes, the color filters 33 may be fixed in the holes, and the holes without the color filters 33 fixed therein may form the filtering voids 32.
Light is an electromagnetic wave, and different colors of light have different wavelengths. Filters generally pass only light waves of a particular wavelength, so a monochromatic filter only allows light of one wavelength (color) to pass. The color filter 33 includes a red filter, a green filter and a blue filter, and the color filter assembly 3 performs a circular motion around the center of the circle. Two kinds of colours in red, green or blue are lighted simultaneously to LED display screen to and, when three kinds of colours are lighted simultaneously to LED display screen, color filter 33 can make monochromatic light pass through, that is to say, work as red light filter rotates extremely when between camera lens 2 and the LED display screen, only red light can get into camera lens 2 works as green light filter rotates extremely when between camera lens 2 and the LED display screen, only green light can get into camera lens 2 works as blue light filter rotates extremely when between camera lens 2 and the LED display screen, only blue light can get into camera lens 2. The color of the LED display screen is not required to be adjusted, and the detection convenience is improved. The red filter, the green filter and the blue filter may be designed according to a spectrum.
The light source 4 is a coaxial light source, the coaxial light source includes a half-mirror 41 and a light emitter 42, and the light emitter 42 may be an LED point light source or a surface light source. The light emitted by the light emitting body 42 is reflected to the LED display screen by the half mirror 41, and the camera 1 receives the light penetrating through the half mirror 41. In practical application, the coaxial light source can illuminate the display screen, and when the display screen is not lightened, the display screen can be clearly imaged through irradiation of the coaxial light source on the display screen.
In some embodiments of the present application, the display device further includes an annular light source 5, where the annular light source 5 is an annular structure, the annular light source 5 is disposed between the color filter assembly 3 and the LED display screen, and light of the annular light source 5 irradiates the LED display screen. In practical application, when the display screen is irradiated by the light source 4, the light of the light source 4 can penetrate through the inner ring of the annular light source 5 to irradiate on the LED display screen, and the annular light source 5 can play a role in auxiliary lighting, so that the imaging effect of the display screen is more obvious.
In some embodiments of the present application, the apparatus further includes a first driving motor 6, where the first driving motor 6 is electrically connected to the color filter assembly 3, so that the color filter assembly 3 performs a circular motion. The first driving motor 6 can function to rotate the color filter assembly 3 so that the filter blank 32 or the color filter 33 is rotated to a position below the lens 2.
In some embodiments of the present application, the apparatus further includes a second driving motor 7, and the second driving motor 7 is electrically connected to the camera 1 to move the camera 1 in the vertical direction. In practical application, due to the alternate arrangement of the color filters 33 and the filtering vacant positions 32, the colors of the light entering the camera 1 and the light entering the lens 2 are different, and the light with different colors needs different focusing positions, so that the camera 1 can be adjusted in the vertical direction by the second driving motor 7, and the camera 1 and the lens 2 can be ensured to be focused accurately.
In some embodiments, the camera 1 is an area-array camera with a resolution of 151M. Because the size of a single LED is very small, in order to ensure the clear imaging of the LED, a high-resolution area-array camera is required to be used, the one-time clear imaging of the display screen is realized, and the detection efficiency is improved.
In some embodiments, the system further comprises an image analyzer, wherein the image analyzer is connected with the camera 1 and detects the LED display screen in the image acquired by the camera 1.
In practical application, the steps of detecting and imaging the LED display screen can be as follows: the LED display screen detection imaging device is placed in a darkroom, so that the influence of ambient light on detection is avoided. The color filter component 3 is driven by the first driving motor 6 to rotate to a position where the filter vacancy 32 is aligned with the lens 2, the light source 4 illuminates Mark points on the LED display screen, the LED display screen to be detected is not bright, and the camera 1 and the lens 2 collect the Mark points to obtain a Mark image. The Mark points can be points on the edge of the LED display screen and are used for achieving a calibration function. Next, the light source 4 is not bright, the LED display screen to be detected emits light with three colors or two colors, the red filter, the green filter and the blue filter are sequentially rotated to a position below the lens 2 by the first driving motor 6, and the LED display screen is photographed by the camera 1 and the lens 2, so as to obtain a monochromatic display screen image. The LED display screen detection imaging steps can also be as follows: the LED display screen to be detected emits monochromatic light, the color filter component 3 is driven by the first driving motor 6 to rotate to the position where the light filtering vacant position 32 is aligned with the lens 2, and monochromatic detection is carried out on the LED display screen. In some embodiments, the ring light source 5 may be on or off simultaneously with the light source 4.
The apparatus may further comprise a light source 4, an annular light source 5, a first drive motor 6, a second drive motor 7 and an image analyzer as described in the above embodiments. The light source 4 is a coaxial light source, the coaxial light source comprises a semi-transparent and semi-reflective mirror 41 and a light-emitting body 42, and light emitted by the light-emitting body 42 passes through the semi-transparent and semi-reflective mirror 41 and is reflected to the LED display screen. The camera 1 receives the light transmitted through the half mirror 41. The light source 4 is used for illuminating the display screen so as to enable the display screen to be clearly imaged. The annular light source 5 is of an annular structure, the annular light source 5 is arranged between the color filter component 3 and the LED display screen, and light rays of the annular light source 5 irradiate on the LED display screen. The annular light source 5 plays a role of assisting the light source 4 so as to make the image of the display screen clearer. The first driving motor 6 is electrically connected with the color filter assembly 3, so that the color filter assembly 3 performs circular motion. The second driving motor 7 is electrically connected to the camera 1, and moves the camera 1 in a vertical direction. And the camera 1 is an area-array camera with the resolution of 151M and is used for imaging a display screen at one time. The image analyzer is connected with the camera 1 and is used for detecting the LED display screen in the image acquired by the camera 1. The image analyzer can be used for analyzing the image of the LED display screen.
According to the technical scheme, the LED display screen detection imaging device comprises: the LED display screen comprises a camera 1, a lens 2 connected with the camera 1, a color filter component 3 arranged between the lens 2 and the LED display screen, and a light source 4 arranged on the light inlet side of the lens 2. Wherein, the light of the light source 4 passes through the filtering vacancy 32 of the color filter component 3 to irradiate on the LED display screen. The lens 2 is opposite to the LED display screen and receives light rays passing through the color filter component 3. In the scheme of this application, the polychrome mixed light process that the LED display screen sent the colour filtering component 3 filters into monochromatic light and gets into camera lens 2. The color of the optical filter facing the camera 1 and the lens 2 is changed through the rotation of the color filter component 3, so that the monochromatic detection during the mixed-color lighting of the LED display screen is realized, the LED display screen is not required to be subjected to multiple monochromatic lighting, and the detection efficiency is improved.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (9)
1. The utility model provides a LED display screen detects image device which characterized in that includes:
the LED display screen comprises a camera (1), a lens (2) connected with the camera (1), a color filter component (3) arranged between the lens (2) and the LED display screen, and a light source (4) arranged on the light inlet side of the lens (2);
wherein, the light of the light source (4) passes through the filtering vacancy (32) of the color filtering component (3) to irradiate on the LED display screen; the lens (2) is opposite to the LED display screen and receives light rays passing through the color filtering component (3).
2. The LED display screen detection imaging device according to claim 1, wherein the color filter assembly (3) comprises a circular filter disc (31), a filter vacancy (32) and a color filter (33), and the filter vacancy (32) and the color filter (33) are uniformly arranged on the circular filter disc (31); the color filter component (3) does circular motion by taking the circle center as an axis; the color filter (33) includes a red filter, a green filter, and a blue filter.
3. The LED display screen detection imaging device according to claim 1, wherein the light source (4) is a coaxial light source, the coaxial light source comprises a half-mirror (41) and a light-emitting body (42), and light emitted by the light-emitting body (42) is reflected onto the LED display screen through the half-mirror (41); the camera (1) receives the light penetrating through the half-transmitting and half-reflecting mirror (41).
4. The LED display screen detection imaging device according to claim 1, further comprising a ring-shaped light source (5), wherein the ring-shaped light source (5) is of a ring-shaped structure, the ring-shaped light source (5) is arranged between the color filter assembly (3) and the LED display screen, and light of the ring-shaped light source (5) is irradiated on the LED display screen.
5. The LED display screen detection imaging device according to any one of claims 1 to 4, further comprising a first driving motor (6), wherein the first driving motor (6) is electrically connected with the color filter assembly (3) to make the color filter assembly (3) move circularly.
6. The LED display screen detection imaging device according to any one of claims 1 to 4, characterized by further comprising a second driving motor (7), wherein the second driving motor (7) is electrically connected with the camera (1) to move the camera (1) in a vertical direction.
7. The LED display screen detection imaging device according to any one of claims 1 to 4, characterized in that the camera (1) is an area-array camera with a resolution of 151M.
8. LED display screen detection imaging device according to any of claims 1-4, characterized by further comprising an image analyzer connected to the camera (1) for detecting the LED display screen in the image captured by the camera (1).
9. The LED display screen detection imaging device according to claim 2, wherein the light source (4) is a coaxial light source, the coaxial light source comprises a half-mirror (41) and a light-emitting body (42), and light emitted by the light-emitting body (42) is reflected onto the LED display screen through the half-mirror (41); the camera (1) receives the light penetrating through the half-transmitting and half-reflecting mirror (41);
the LED display screen also comprises an annular light source (5), wherein the annular light source (5) is of an annular structure, the annular light source (5) is arranged between the color filtering component (3) and the LED display screen, and light rays of the annular light source (5) irradiate on the LED display screen;
the color filter is characterized by further comprising a first driving motor (6), wherein the first driving motor (6) is electrically connected with the color filter component (3) to enable the color filter component (3) to do circular motion;
the camera further comprises a second driving motor (7), wherein the second driving motor (7) is electrically connected with the camera (1) to enable the camera (1) to move along the vertical direction;
the camera (1) is an area-array camera with a resolution of 151M;
the LED display screen detection system is characterized by further comprising an image analyzer, wherein the image analyzer is connected with the camera (1) and is used for detecting the LED display screen in the image acquired by the camera (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023302281.6U CN213902826U (en) | 2020-12-31 | 2020-12-31 | LED display screen detection imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023302281.6U CN213902826U (en) | 2020-12-31 | 2020-12-31 | LED display screen detection imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213902826U true CN213902826U (en) | 2021-08-06 |
Family
ID=77106919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023302281.6U Active CN213902826U (en) | 2020-12-31 | 2020-12-31 | LED display screen detection imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213902826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567093A (en) * | 2021-09-26 | 2021-10-29 | 武汉精创电子技术有限公司 | Device and method for detecting product image quality |
| KR20230087048A (en) * | 2021-12-09 | 2023-06-16 | (주)지엘테크 | optical measuring device and lens turret unit for optical measuring device |
-
2020
- 2020-12-31 CN CN202023302281.6U patent/CN213902826U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567093A (en) * | 2021-09-26 | 2021-10-29 | 武汉精创电子技术有限公司 | Device and method for detecting product image quality |
| CN113567093B (en) * | 2021-09-26 | 2021-12-14 | 武汉精创电子技术有限公司 | Device and method for detecting product image quality |
| KR20230087048A (en) * | 2021-12-09 | 2023-06-16 | (주)지엘테크 | optical measuring device and lens turret unit for optical measuring device |
| KR102675829B1 (en) * | 2021-12-09 | 2024-06-17 | (주)지엘테크 | optical measuring device and lens turret unit for optical measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213902826U (en) | LED display screen detection imaging device | |
| US5774212A (en) | Method and apparatus for detecting and analyzing directionally reflective surface flaws | |
| US3972616A (en) | Apparatus for detecting the defects of the mask pattern using spatial filtering | |
| US8493558B2 (en) | Surface inspection apparatus | |
| US6781687B2 (en) | Illumination and image acquisition system | |
| WO2017000700A1 (en) | Multi-fluorescent synchronous microscopic imaging method and device | |
| US7586073B2 (en) | Imaging system with high-spectrum resolution and imaging method for the same | |
| JP2004191355A5 (en) | ||
| EP1107012A1 (en) | Visual inspection apparatus | |
| JP2008520984A (en) | Inspection device | |
| JP2017207341A (en) | Visual inspection method and visual inspection device of inspected object | |
| US6983066B2 (en) | Machine vision | |
| CN210269638U (en) | Detection module and detection machine platform | |
| JP2009510426A (en) | Device for recording multiple images of a disk-like object | |
| CN113962238B (en) | Light supplementing light source and identification code scanning device | |
| CN111458294A (en) | Inspection apparatus | |
| JP2021124401A (en) | Device and method for inspecting substrate | |
| CN109937360B (en) | Device and method for detecting light-permeable optical component | |
| US20170307867A1 (en) | Fluorescence module with a plurality of filters and light sources and an optical guide | |
| TWI290223B (en) | Adjustable light sources for image forming apparatus | |
| CN217820062U (en) | Apparatus for detecting surface defects on an object | |
| JPH03209153A (en) | Automatic appearance checking device | |
| CN212845075U (en) | Polishing imaging device | |
| CN218331294U (en) | Detection equipment | |
| JP3236995U (en) | Container surface inspection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |