CN114205528B - Display panel detection system and detection method - Google Patents
Display panel detection system and detection method Download PDFInfo
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- CN114205528B CN114205528B CN202111547153.4A CN202111547153A CN114205528B CN 114205528 B CN114205528 B CN 114205528B CN 202111547153 A CN202111547153 A CN 202111547153A CN 114205528 B CN114205528 B CN 114205528B
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000003993 interaction Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920002334 Spandex Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/64—Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- Studio Devices (AREA)
Abstract
The application discloses a detection system and a detection method of a display panel, which are used for shooting the display panel, wherein the detection system comprises the following components: the controller comprises a processing module, a serial communication module and a clock signal module, wherein the serial communication module and the clock signal module are respectively connected to the processing module; the interchangeable lens is connected to the controller through a signal adapter; the interchangeable lens comprises a serial communication contact and a clock signal contact; the signal adapter comprises more than two signal adapters, each signal adapter comprises a first transmission line and a second transmission line, and the serial communication contact is connected to the serial communication module through the first transmission line; the clock signal contact is connected to the clock signal module through a second transmission line; and acquiring a signal adapter corresponding to the interchangeable lens according to the model of the interchangeable lens, so that the interchangeable lens is connected to the controller.
Description
Technical Field
The application relates to the technical field of display, in particular to a detection system and a detection method of a display panel.
Background
Currently, the competition of the display is increasingly strong, and the quality of the display panel is required to be detected by consumers more and more before the products are shipped. For example, when detecting the image quality of a display panel, it is necessary to perform a photographing process on the screen of each display panel to acquire a corresponding image and determine whether the image quality of the display panel is acceptable or not based on the image quality of the image. However, due to the variety of display panels, the shape is complex, and it is difficult for a single fixed optical system to satisfy the detection requirements of multiple display panels. At present, a detection system of the display panel generally comprises components such as an industrial lens, a camera, an external motor, a PLC (programmable logic controller), a computer and the like. The industrial lens is connected to the camera through an external motor, the external motor is electrically connected to the PLC, and the camera and the PLC are connected to the computer.
In the detection process, the computer controls the external motor to realize focusing or zooming of the industrial lens, the camera sends an image to the computer, and the computer judges the focusing effect of the industrial lens. But adopts the scheme that external motor realizes focusing or zooming, needs custom motor to lead to the commonality poor to this external motor needs to be controlled by the PLC controller, and current position state can't be fed back in real time to industrial lens. Further, industrial lenses are generally conventional motorized lenses that cannot support large-bottom cameras and are not suitable for inspection of large panels.
Disclosure of Invention
The invention aims to provide a detection system and a detection method for a display panel, which are used for solving the technical problems that an external motor cannot automatically control a scheme for realizing focusing or zooming and cannot feed back current state information of a lens in real time.
In order to achieve the above object, the present invention provides a detection system for a display panel, for performing shooting processing on the display panel, the detection system comprising: the controller comprises a processing module, a serial communication module and a clock signal module, wherein the serial communication module and the clock signal module are respectively connected to the processing module; the interchangeable lens is connected to the controller through a signal adapter; the interchangeable lens comprises a serial communication contact and a clock signal contact; the signal adapter comprises more than two signal adapters, each signal adapter comprises a first transmission line and a second transmission line, and the serial communication contact is connected to the serial communication module through the first transmission line; the clock signal contact is connected to the clock signal module through the second transmission line; and acquiring a signal adapter corresponding to the interchangeable lens according to the model of the interchangeable lens, so that the interchangeable lens is connected to the controller.
Further, the controller also comprises a power supply module, wherein the power supply module is connected to the processing module; the interchangeable lens further comprises a power supply contact; each signal adapter further comprises a third transmission line, wherein the power supply contact is connected to the power supply module through the third transmission line.
Further, the arrangement order of the first transmission line, the second transmission line and the third transmission line of each signal transfer element is different.
Further, the detection system of the display panel further includes: a camera, the interchangeable lens being detachably connected to the camera.
Further, the serial communication module includes interaction information of the camera to the interchangeable lens, interaction information of the interchangeable lens to the camera, and a sampling period.
Further, the interaction information from the camera to the interchangeable lens is focus information, input aperture information, lens model information and lens version information; the interaction information from the interchangeable lens to the camera is current focus information, current input aperture information, current lens model information and current lens version information.
Further, the detection system of the display panel further includes: a computer electrically connected to the controller and the camera; when the computer is connected with the controller, the computer sends a focusing instruction to the controller, so that the controller realizes focusing treatment on the lens; when the computer is connected with the camera, the computer sends a shooting instruction to the camera and acquires an image shot by the camera.
Further, the focusing instruction comprises a forward and reverse rotation signal of a preset aperture and a preset focusing forward and reverse rotation signal.
Further, the clock signal module comprises a diaphragm forward rotation signal, a diaphragm reverse rotation signal, a focusing forward rotation signal and a focusing reverse rotation signal.
In order to achieve the above object, the present invention further provides a method for detecting a display panel, including the steps of: according to the model of the interchangeable lens, a signal adapter corresponding to the interchangeable lens is obtained, and the controller is connected with the interchangeable lens through the signal adapter; and the controller sends a focusing command to the interchangeable lens, and obtains a current focusing forward-reverse signal and a current aperture forward-reverse signal in a sampling period until the current aperture forward-reverse signal reaches a preset aperture forward-reverse signal and the current focusing forward-reverse signal reaches a preset focusing forward-reverse signal, and the controller stops sending the focusing command to the interchangeable lens.
The invention has the technical effects that the detection system and the detection method for the display panel are provided, the detection system comprises a controller, an interchangeable lens, a signal adapter, a camera and a computer, and the signal adapter corresponding to the interchangeable lens is acquired according to the model of the interchangeable lens, so that the interchangeable lens is in telecommunication connection with the controller, the camera and the computer. When the detection display panel is switched, the automatic focusing and zooming can be realized by only remotely controlling the interchangeable lens, so that the detection of the display panels with different models can be realized, and the current state information of the interchangeable lens can be fed back in real time.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a functional diagram of a detection system according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a controller and a signal adapter according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of an interchangeable lens according to an embodiment of the present application.
The components of the drawings are identified as follows:
10. A controller; 20. A lens can be replaced;
30. a signal adapter; 40. A camera;
50. a computer; 201. Serial communication contacts;
202. A clock signal contact; 203. A power supply contact;
301. a first transmission line; 302. A second transmission line;
303. and a third transmission line.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, the present embodiment provides a detection system of a display panel, which includes a controller 10, an interchangeable lens 20, a signal adapter 30, a camera 40 and a computer 50. The controller 10 is connected to the interchangeable lens 20 through the signal adapter 30, the controller 10 may be connected to the computer 50 through a wire or wireless, and the camera 40 may be connected to the computer 50 (PC) through a wire or wireless. In the present embodiment, the camera 40 is an industrial camera 40, which is preferably connected to the computer 50 by a wire to avoid data loss when the camera 40 interacts with the computer 50.
As shown in fig. 2, the controller 10 includes a processing module, a serial communication module, a clock signal module, a power supply module, and a network communication module. The serial communication module, the clock signal module, the power supply module and the network communication module are respectively connected to the processing module. The network communication module comprises a Bluetooth module, a Wifi module and a network card.
Referring to fig. 1-2, the interchangeable lens 20 includes a Canon lens, a Sony lens, a Nikon lens, a lycra lens, a bingo lens, and the like, and is not described in detail herein.
As shown in fig. 3, the interchangeable lens 20 has a motor (not shown) built therein, and no external motor is required to be introduced, thereby reducing the occupied space. The controller 10 may be an FPGA chip, and the interchangeable lens 20 is connected to the controller 10, so that a detection system of the display panel can be optimized, and the PLC controller 10 is reduced. The interchangeable lens 20 includes a serial communication contact 201, a clock signal contact 202, and a power supply contact 203.
Referring to fig. 1, the signal adapter 30 includes more than two signal adapters, such as signal adapters 1,2, 3 … … n, each of which is configured according to the model of the interchangeable lens 20.
Specifically, each signal switching element includes a first transmission line 301, a second transmission line 302, and a third transmission line 303. Because the types of the interchangeable lenses 20 are different, the arrangement sequence of the first transmission line 301, the second transmission line 302 and the third transmission line 303 of each signal switching element is different, so that one camera 40 can be matched with the interchangeable lenses 20 with different types, the universality is strong, the selection space of the interchangeable lenses 20 is more, and the application range is wide.
As shown in connection with fig. 1-3, the serial communication contact 201 is connected to the serial communication module by a first transmission line 301. The serial communication module includes the interaction information of the camera 40 to the interchangeable lens 20, the interaction information of the interchangeable lens 20 to the camera 40, and the sampling period. Wherein, the interaction information from the camera 40 to the interchangeable lens 20 is focus information, input aperture information, lens model information and lens version information; the interactive information of the interchangeable lens 20 to the camera 40 is current focus information, current input aperture information, current lens model information, and current lens version information.
The clock signal contact 202 is connected to the clock signal module via a second transmission line 302. The clock signal module comprises an aperture forward rotation signal, an aperture reverse rotation signal, a focusing forward rotation signal and a focusing reverse rotation signal.
The power supply contact 203 is connected to the power supply module by a third transmission line 303. The power supply module comprises a lens chip positive pressure signal, a lens chip negative pressure signal, a motor positive pressure signal and a motor negative pressure signal.
The present embodiment provides a detection system for a display panel, according to the model of an interchangeable lens 20, a signal adapter corresponding to the interchangeable lens 20 is obtained, so that the interchangeable lens 20 is connected to a controller 10.
When the computer 50 is connected to the controller 10, the computer 50 transmits a focusing instruction to the controller 10 so that the controller 10 realizes focusing processing for the lens. When the computer 50 is connected to the camera 40, the computer 50 transmits a photographing instruction to the camera 40 and acquires an image photographed by the camera 40. The focusing instruction comprises a forward and reverse rotation signal of a preset aperture and a preset focusing forward and reverse rotation signal. Therefore, the detection system can automatically control the interchangeable lens 20 to realize an auto-focusing function, and feed back the current state information of the interchangeable lens 20 in real time.
Further, the present embodiment can control focusing and aperture of the interchangeable lens 20 in real time by watching the blurring of the center point and four corners of the image captured by the camera 40 and sending a focusing command to the controller 10 via the computer 50.
In this embodiment, the serial communication module of the controller 10 sends a focusing command to the interchangeable lens 20, and obtains a current focusing forward-reverse signal and a current aperture forward-reverse signal in a sampling period, until the current aperture forward-reverse signal reaches a preset aperture forward-reverse signal, and when the current focusing forward-reverse signal reaches the preset focusing forward-reverse signal, the controller 10 stops sending the focusing command to the interchangeable lens 20, and the interchangeable lens 20 feeds back current focus information, current input aperture information, current lens model information and current lens version information to the controller 10 and the camera 40, so that the interchangeable lens 20 can feed back current state information in real time, and further, in the process of shooting a display panel, the position of the interchangeable lens 20 can be standardized, and the adjustment time when the panel is switched is reduced.
As shown in fig. 1-3, the present embodiment further provides a method for detecting a display panel, including the following steps S1-S2).
S1) acquiring a signal adapter corresponding to the interchangeable lens 20 according to the model of the interchangeable lens 20, and connecting the controller 10 with the interchangeable lens 20 through the signal adapter.
S2) sending a focusing instruction to the interchangeable lens 20 through the controller 10, and acquiring forward and reverse signals of the current focal length and the current aperture in a sampling period until the forward and reverse signals of the current aperture reach the forward and reverse signals of the preset aperture and the current focusing forward and reverse signals reach the preset focusing forward and reverse signals, the controller 10 stops sending the focusing instruction to the interchangeable lens 20, and the interchangeable lens 20 feeds back current focal point information, current input aperture information, current lens model information and current lens version information to the controller 10 and the camera 40, so that the interchangeable lens 20 can feed back current state information in real time, and further, the position of the interchangeable lens 20 can be standardized in the process of shooting a display panel, the adjustment time when a panel is switched is reduced, and the method is suitable for detection of a large panel.
Specifically, when the computer 50 is connected to the controller 10, the computer 50 sends a focusing instruction to the controller 10, so that the controller 10 performs focusing processing on the lens. When the computer 50 is connected to the camera 40, the computer 50 transmits a photographing instruction to the camera 40 and acquires an image photographed by the camera 40. The focusing instruction comprises a forward and reverse rotation signal of a preset aperture and a preset focusing forward and reverse rotation signal. Therefore, the detection system can automatically control the interchangeable lens 20 to realize an auto-focusing function, and feed back the current state information of the interchangeable lens 20 in real time.
Further, the present embodiment can control focusing and aperture of the interchangeable lens 20 in real time by watching the blurring of the center point and four corners of the image captured by the camera 40 and sending a focusing command to the controller 10 via the computer 50.
Therefore, the present embodiment provides a method for detecting a display panel, where the detection system includes a controller 10, an interchangeable lens 20, a signal adapter 30, a camera 40 and a computer 50, and the signal adapter corresponding to the interchangeable lens 20 is obtained according to the model of the interchangeable lens 20, so that the interchangeable lens 20 is in telecommunication connection with the controller 10, the camera 40 and the computer 50. When the detection display panel is switched, the detection of display panels with different models and different sizes can be realized only by remotely controlling the interchangeable lens 20 to realize automatic focusing and zooming, and the current state information of the interchangeable lens 20 can be fed back in real time. In addition, by adopting the detection method, the display panel can be rapidly detected, which is beneficial to saving time and improving production benefits.
The above description is provided for the detection system and the detection method of the display panel provided by the embodiment of the present application, and specific examples are applied to describe the principle and the implementation of the present application, and the description of the above embodiments is only used for helping to understand the technical scheme and the core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (8)
1. A detection system for a display panel, for performing a shooting process on the display panel, the detection system comprising:
The controller comprises a processing module, a serial communication module and a clock signal module, wherein the serial communication module and the clock signal module are respectively connected to the processing module;
The interchangeable lens is connected to the controller through a signal adapter; the interchangeable lens comprises a serial communication contact and a clock signal contact; the signal adapter comprises more than two signal adapters, each signal adapter comprises a first transmission line and a second transmission line, and the serial communication contact is connected to the serial communication module through the first transmission line; the clock signal contact is connected to the clock signal module through the second transmission line; according to the model of the interchangeable lens, acquiring a signal adapter corresponding to the interchangeable lens, so that the interchangeable lens is connected to the controller;
a camera, the interchangeable lens being detachably connected to the camera;
a computer electrically connected to the controller and the camera;
When the computer is connected with the controller, the computer sends a focusing instruction to the controller, so that the controller realizes focusing treatment on the lens;
when the computer is connected with the camera, the computer sends a shooting instruction to the camera and acquires an image shot by the camera.
2. The detection system of a display panel according to claim 1, wherein,
The controller also comprises a power supply module, wherein the power supply module is connected to the processing module;
the interchangeable lens further comprises a power supply contact;
Each signal adapter further comprises a third transmission line, wherein the power supply contact is connected to the power supply module through the third transmission line.
3. The detecting system for a display panel according to claim 2, wherein,
The arrangement sequence of the first transmission line, the second transmission line and the third transmission line of each signal transfer piece is different.
4. The detection system of a display panel according to claim 1, wherein,
The serial communication module comprises interaction information from the camera to the interchangeable lens, interaction information from the interchangeable lens to the camera and a sampling period.
5. The detecting system for a display panel according to claim 4, wherein,
The interaction information from the camera to the interchangeable lens is focus information, input aperture information, lens model information and lens version information;
The interaction information from the interchangeable lens to the camera is current focus information, current input aperture information, current lens model information and current lens version information.
6. The detection system of a display panel according to claim 1, wherein,
The focusing instruction comprises a forward and reverse rotation signal of a preset aperture and a preset focusing forward and reverse rotation signal.
7. The detection system of a display panel according to claim 1, wherein,
The clock signal module comprises an aperture forward rotation signal, an aperture reverse rotation signal, a focusing forward rotation signal and a focusing reverse rotation signal.
8. A method for detecting a display panel, which is applied to the detection system of the display panel as claimed in claim 1, characterized in that the method comprises the following steps:
According to the model of the interchangeable lens, a signal adapter corresponding to the interchangeable lens is obtained, and the controller is connected with the interchangeable lens through the signal adapter;
The controller sends a focusing command to the interchangeable lens, and obtains a current focusing forward-reverse signal and a current aperture forward-reverse signal in a sampling period until the current aperture forward-reverse signal reaches a preset aperture forward-reverse signal and the current focusing forward-reverse signal reaches a preset focusing forward-reverse signal, and the controller stops sending the focusing command to the interchangeable lens.
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| CN202111547153.4A CN114205528B (en) | 2021-12-16 | 2021-12-16 | Display panel detection system and detection method |
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