CN111650201A - Detection device and detection method - Google Patents
Detection device and detection method Download PDFInfo
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- CN111650201A CN111650201A CN202010680899.1A CN202010680899A CN111650201A CN 111650201 A CN111650201 A CN 111650201A CN 202010680899 A CN202010680899 A CN 202010680899A CN 111650201 A CN111650201 A CN 111650201A
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- 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
Abstract
The disclosure relates to a detection device and a detection method, which are used for detecting a curved screen, wherein the curved screen comprises a plane part and a curved part positioned at the edge of the plane part, and the detection device comprises: the device comprises a detection table, an image acquisition assembly and an optical assembly; the detection table is provided with an accommodating part, the accommodating part is used for accommodating the curved screen to be detected, the image acquisition assembly is opposite to the accommodating part, and the image acquisition assembly is used for acquiring a display image of the curved screen to be detected; the optical assembly comprises a plurality of optical units, and the plurality of optical units are configured to be capable of adjusting the propagation direction of light emitted by the curved surface part of the curved screen to be detected so that the image acquisition assembly can acquire the image of the curved surface part. The technical scheme can realize the detection of the curved screen.
Description
Technical Field
The disclosure relates to the technical field of screen detection, in particular to a detection device and a detection method.
Background
With the development and progress of the technology, the curved screen is more and more widely applied to various electronic devices. In practical application, the curved screen needs to be detected and then used for electronic equipment. At present, a display image of a curved screen is generally acquired by a camera or other devices, and whether the screen is qualified is judged according to the display image of the curved screen. However, since the curved screen has the planar portion and the curved portion, when the curved screen display image is acquired through equipment such as a camera, images of the curved portion and the planar portion cannot be obtained at the same time, so that the planar portion can acquire the display image through the camera to display, the curved portion can only be detected manually, and further the problems that the detection standards of the curved portion are different, misjudgment and missing judgment are easy to occur are caused.
Disclosure of Invention
The present disclosure aims to provide a detection apparatus and a detection method, so as to solve the problems of inconsistent detection standards and easy misjudgment and missed judgment caused by manual detection of curved surfaces in the related art.
According to an aspect of the present disclosure, there is provided a detection apparatus for detecting a curved screen, the curved screen including a planar portion and a curved portion located at an edge of the planar portion, the detection apparatus including:
the detection table is provided with an accommodating part, and the accommodating part is used for placing a curved screen to be detected;
the image acquisition assembly is opposite to the accommodating part and is used for acquiring an image of the curved screen to be detected;
the optical assembly comprises a plurality of optical units, and the plurality of optical units are configured to be capable of adjusting the propagation direction of light emitted by the curved surface part of the curved screen to be detected so that the image acquisition assembly can acquire the image of the curved surface part.
According to another aspect of the present disclosure, there is provided a detection method for detecting a curved screen, the detection method including:
controlling a plurality of optical units to adjust light emitted by the curved surface part according to the curvature of the curved surface part of the curved surface screen to be detected;
acquiring a test image by using an image acquisition assembly, wherein the test image is a display image of the curved screen to be detected;
and determining whether the curved screen to be detected is qualified or not according to the test image.
The detection device that this disclosed embodiment provided, through the direction of propagation of the light that a plurality of optical unit adjustment were waited to detect curved surface screen curved surface portion and were sent, thereby make and detect the relative image acquisition subassembly of platform holding portion and can acquire simultaneously and wait to detect the display image that detects display screen curved surface portion and plane portion, thereby can detect through the demonstration that this image was waited to detect curved surface screen, the problem of the detection standard that artifical detection curved surface portion leads to among the correlation technique differs, easily misjudge the omission is solved, can improve the accuracy and the detection efficiency that curved surface screen detected.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a schematic structural diagram of a first detection apparatus provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a first optical assembly provided in an embodiment of the present disclosure;
FIG. 3 is a schematic top view of a first optical assembly provided by an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second detection apparatus provided in the embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a second optical assembly according to an embodiment of the present disclosure;
FIG. 6 is a schematic top view of a second optical assembly provided by embodiments of the present disclosure;
fig. 7 is an equivalent circuit diagram of a driving unit according to an embodiment of the disclosure;
fig. 8 is a schematic structural diagram of a third detection apparatus provided in the embodiment of the present disclosure;
fig. 9 is a control block diagram of a detection apparatus according to an embodiment of the present disclosure;
fig. 10 is a flowchart of a detection method according to an embodiment of the disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.
First, a detection apparatus is provided in the present exemplary embodiment for detecting a curved screen 100, as shown in fig. 1, the curved screen 100 may include a planar portion 110 and a curved portion 120 located at an edge of the planar portion 110, and the curved screen 100 may include one or more curved portions 120. When the curved screen 100 includes a curved portion 120, the curved portion 120 may be located at an edge of the planar portion 110. When the curved screen 100 includes two curved portions 120, the two curved portions 120 may be located at two parallel edges of the planar portion 110.
The inspection apparatus includes an inspection station 200, an image capture assembly 300, and an optical assembly 400. The accommodating part 210 is arranged on the detection table 200, and the accommodating part 210 is used for placing the curved screen 100 to be detected; the image acquisition assembly 300 is opposite to the accommodating part 210, and the image acquisition assembly 300 is used for acquiring a display image of the curved screen 100 to be detected; the optical assembly 400 includes a plurality of optical units 410, and the plurality of optical units 410 are configured to adjust a propagation direction of light emitted from the curved portion 120 of the curved screen 100 to be detected, so that the image capturing assembly 300 can capture an image of the curved portion 120.
The detection device provided by the embodiment of the disclosure adjusts the propagation direction of light emitted by the curved surface part 120 of the curved screen 100 to be detected through the optical units 410, so that the image acquisition assembly 300 opposite to the accommodating part 210 of the detection table 200 can simultaneously acquire display images of the curved surface part 120 and the plane part 110 of the display screen to be detected, thereby detecting the display of the curved screen 100 to be detected through the image, solving the problems of inconsistent detection standards and easy misjudgment and missed judgment caused by manual detection of the curved surface part 120 in the related art, and improving the accuracy and the detection efficiency of detection of the curved screen 100.
The following will describe each part of the detection device provided by the embodiment of the present disclosure in detail:
as shown in fig. 2, the optical assembly 400 may include an optical unit 410, a driving device 420 and a driving circuit 430, the driving device 420 is connected to the optical unit 410, the driving device is used for driving the optical unit 410 to deflect, the driving circuit 430 is connected to the driving device 420, and the driving circuit 430 is used for providing a driving signal for the driving device 420.
As shown in fig. 3, the optical unit 410 may include a mirror 411, in which case the optical assembly 400 includes a plurality of mirrors 411, the plurality of mirrors 411 being arranged in an array; the driving device includes a plurality of Micro-Electro-Mechanical systems (MEMS), each MEMS is correspondingly connected to a mirror 411, and the MEMS is used for driving the mirror 411 to deflect.
Referring to fig. 2, the optical assembly 400 may include a substrate 14, a driving circuit layer 13, a driving device layer 12, and a reflective layer 11. The driving circuit layer 13 is provided on the substrate 14, the driving device layer 12 is provided on the side of the driving circuit layer 13 away from the substrate 14, and the reflective layer 11 is provided on the side of the driving device layer 12 away from the driving circuit layer 13.
The substrate 14 may be a glass substrate 14, a silicon substrate 14, or the like. The driving circuit layer 13 has a driving circuit 430 formed therein, and the driving circuit 430 may include a plurality of driving units and connection lines. A plurality of driving units are distributed in an array, and each driving unit corresponds to one reflector 411. For example, the projection of the driving unit on the reflective layer 11 is located in the area of the corresponding mirror 411.
The driving unit may include a switch circuit, an input terminal of the switch circuit is connected to the power signal, a control terminal of the switch circuit is connected to the control signal, and the switch circuit is turned on in response to the control signal to transmit the power signal to the driving device layer 12. For example, the switching circuit may include one or more MOS transistors and a capacitor. On this basis, a plurality of power supply signal lines for transmitting power supply signals and a plurality of control signal lines for transmitting control signals may be provided in the driver circuit layer 13.
The driving device layer 12 may include a plurality of micro-electromechanical systems, which may be distributed in an array, and each of the micro-electromechanical systems is correspondingly connected to a driving unit. The mems may include a driving mechanism connected to the driving unit and a hinge mechanism connected to the mirror 411, wherein the driving mechanism drives the mirror 411 to deflect via the hinge mechanism. Of course, in practical applications, the driving device 420 may also include other driving devices, and the embodiments of the present disclosure are not limited thereto.
The reflective layer 11 may comprise a plurality of individual mirrors 411, each mirror 411 being deflected by a micro-electromechanical system drive. The reflector 411 may be a pixel-level reflector 411, and the light of the curved surface portion 120 of the curved surface screen 100 can be deflected and reflected by controlling the pixel-level reflector 411, so that the light of the curved surface portion 120 can be transmitted to the image capturing assembly 300. And each pixel is independent, and can reflect the light of the curved surface part 120 with different curvatures to the image acquisition assembly 300.
For example, the optical assembly 400 may be a Digital Micromirror Device (DMD) provided with a plurality of mirrors 411, the deflection angle of the mirror 411 may be adjustable, and in practical applications, the deflection angle of the mirror 411 may be controlled according to the positional relationship between the mirror 411 and the curved surface portion 120.
Alternatively, as shown in fig. 4 and 5, the optical unit 410 includes an optical lens 452, the optical assembly 400 includes a plurality of optical lenses 452, and the plurality of optical lenses 452 are distributed in an array; the driving device 420 includes: and a plurality of micro-electromechanical systems, each of which is correspondingly connected with an optical lens 452, for driving the mirror 411 to deflect.
The optical assembly 400 may include a substrate 14, a driving circuit layer 13, a driving device layer 12, and a lens layer 16. The drive circuit layer 13 is provided on the substrate 14, the drive device layer 12 is provided on the side of the drive circuit layer 13 remote from the substrate 14, and the lens layer 16 is provided on the side of the drive device layer 12 remote from the drive circuit layer 13.
The substrate 14 may be a glass substrate 14, a silicon substrate 14, or the like. The driving circuit layer 13 has a driving circuit 430 formed therein, and the driving circuit 430 may include a plurality of driving units and connection lines. A plurality of driving units are distributed in an array, and each driving unit corresponds to one reflector 411. For example, the projection of the driving unit on the reflective layer 11 is located in the area of the corresponding mirror 411.
The driving unit may include a switch circuit, an input terminal of the switch circuit is connected to the power signal, a control terminal of the switch circuit is connected to the control signal, and the switch circuit is turned on in response to the control signal to transmit the power signal to the driving device layer 12. For example, the switching circuit may include one or more MOS transistors and a capacitor. On this basis, a plurality of power supply signal lines for transmitting power supply signals and a plurality of control signal lines for transmitting control signals may be provided in the driver circuit layer 13.
The driving device layer 12 may include a plurality of micro-electromechanical systems, which may be distributed in an array, and each of the micro-electromechanical systems is correspondingly connected to a driving unit. The mems may include a driving mechanism connected to the driving unit and a hinge mechanism connected to the mirror 411, wherein the driving mechanism drives the mirror 411 to deflect via the hinge mechanism. Of course, in practical applications, the driving device 420 may also include other driving devices, and the embodiments of the present disclosure are not limited thereto.
The lens layer 16 may include a plurality of individual optical lenses 452, each optical lens 452 being deflected by a mems actuation. The optical lens 452 may be a pixel-level optical lens 452, and the light of the curved surface portion 120 of the refractive curved screen 100 is deflected by controlling the pixel-level optical lens 452, so that the light of the curved surface portion 120 can be transmitted to the image capturing assembly 300. And each pixel is independent, and can reflect the light of the curved surface part 120 with different curvatures to the image acquisition assembly 300.
As shown in fig. 6, the lens layer 16 may further include a connection unit 451, the connection unit 451 is disposed at one side of the optical lens 452, and the connection unit 451 is connected to the optical lens 452, and the mems connects the connection unit 451. The connection unit 451 and the optical lens 452 are disposed adjacent to each other. The optical lenses 452 may be arranged in an array, and the connecting units 451 may also be arranged in an array, where a row of optical lenses 452 connects a row of connecting units 451. The connecting unit 451 may be made of an opaque material, or the connecting unit may be covered with an opaque light shielding layer, such as a black material layer.
On this basis, the substrate 14 may be a transparent substrate 14, and the driving circuit layer 13 may be a transparent driving circuit layer 13. The driving device layer 12 may include a light-transmitting region and a light-blocking region, the projection of the connecting unit 451 on the driving device layer 12 is located in the light-blocking region, and the projection of the optical lens 452 on the driving device layer 12 is located in the light-transmitting region.
The driving circuit layer 13 may also include a transparent region and an opaque region, where the transparent region on the driving circuit layer 13 corresponds to the transparent region on the driving device layer 12, that is, a projection of the transparent region on the driving circuit layer 13 on the driving device layer 12 is located on the transparent region on the driving device layer 12. The opaque region on the driving circuit layer 13 corresponds to the opaque region on the driving device layer 12, that is, the projection of the opaque region on the driving circuit layer 13 on the driving device layer 12 is located on the opaque region on the driving device layer 12. The driving units in the driving circuit layer 13 are disposed in the opaque region of the driving circuit layer 13.
The optical lens 452 may be a convex lens, a concave lens, a plane lens, or the like, and the light emitted from the curved surface portion 120 of the curved screen 100 can pass through the optical lens 452, and the optical lens 452 changes the propagation direction of the light emitted from the curved surface portion 120. The light emitted from the curved surface portion 120 is transmitted to the image capturing assembly 300 through the optical lens 452.
The optical elements 410 (the mirror 411 or the optical lens 452) distributed in an array can be deflected in a line-by-line scanning manner, and the driving circuit 430 provides power signals to the driving micro-electro-mechanical system in a line-by-line manner. Of course, in practical applications, the optical units 410 distributed in an array may be deflected by a whole plate, which is not particularly limited in the embodiments of the present disclosure.
For example, when the optical units 410 distributed in an array are deflected in a progressive scanning manner, the driving circuit 430 in the driving unit may be as shown in fig. 7, and the driving circuit 430 may include a driving switch Td, an energy storage capacitor C, and a scanning switch Ts. The driving switch Td has a first terminal connected to the power source VDD and a second terminal connected to the optical unit 420. A first terminal of the scan switch Ts is connected to the data signal Vdata, a second terminal of the scan switch Ts is connected to the control terminal of the driving switch Td, and the control terminal of the scan switch Ts is connected to the scan control signal Sn. The first end of the energy storage capacitor C is connected to the control end of the driving switch Td, and the second end of the energy storage capacitor C is connected to the first power signal VDD. The first step. The scan switch Ts is turned on in response to the scan control signal Sn to write the data signal Vdata into the energy storage capacitor C, and the driving switch Td is turned on under the control of the data signal Vdata in the energy storage capacitor C, and the first power signal VDD is transmitted to the optical unit 410.
The driving switch Td and the scanning switch Ts may be MOS transistors, a first terminal of each MOS transistor may be a source, a second terminal thereof may be a drain, and a control terminal thereof may be a gate. Or the first end of each MOS transistor may be a drain, the second end may be a source, and the control end may be a gate. Each MOS transistor may be an enhancement type or a depletion type MOS transistor, which is not specifically limited in this disclosure.
At this time, a data signal line, a scan signal line, and a power signal line may be provided in the driver circuit layer 13. The data signal lines and the scan signal lines may be disposed perpendicular to each other. In an actual test, an included angle between the pixel unit of the curved surface portion 120 on the straight line in the extending direction thereof and the image capturing assembly 300 is not changed, so that a column of optical units 410 arranged in the optical assembly 400 along the extending direction of the curved surface portion 120 can receive the same data signal, that is, the data signal can be provided through the same data line, and a wiring space can be saved.
The accommodating portion 210 is disposed on the inspection table 200, the accommodating portion 210 is used for placing the curved screen 100 to be inspected, and the optical assembly 400 is slidably connected to the inspection table 200. Taking the curved screen 100 including two curved portions 120 as an example, the optical assemblies 400 are disposed on two sides of the accommodating portion 210.
When the optical unit 410 includes the reflector 411, the optical assembly 400 is disposed on the side of the receiving portion 210 of the testing platform 200. The optical assembly 400 is obliquely disposed on the inspection station 200. The end of the optical assembly 400 away from the test platform 200 extends outward, wherein the outward refers to the direction of the receiving portion 210 along the surface away from the receiving portion 210. The two optical assemblies 400 on the test platform 200 are respectively disposed at two sides of the accommodating portion 210, and each optical assembly 400 extends outward away from one end of the test platform 200.
When the optical unit 410 includes the optical lens 452, the optical assembly 400 may be opposite to the accommodating portion 210 of the detection stage 200, and a projection area of the optical assembly 400 on the accommodating portion 210 and a projection area of the curved surface portion 120 of the curved screen 100 on the accommodating portion 210 may coincide. In the initial state, the optical axis of the optical lens 452 may be perpendicular to the surface of the accommodating portion 210, and the respective deflection angles of the optical lens 452 are determined according to the curvature of the curved screen 100 and the positional relationship of the curved surface portion 120, the optical assembly 400, and the image capturing assembly 300 when in the detection state.
The optical assembly 400 is slidably connected to the inspection table 200, and an exemplary slide groove may be disposed on the inspection table 200, and a slide portion may be disposed on the optical assembly, and the slide portion is mounted on the slide groove and can move in the slide groove. The detection table 200 may further be provided with a motor, and the motor is connected with the optical assembly 400 through a transmission mechanism. The power output by the motor is transmitted to the optical assembly 400 through the transmission mechanism, and drives the optical assembly 400 to move.
The transmission mechanism may be a screw-slider mechanism, the screw is connected to the output shaft of the motor, the slider is connected to the optical assembly 400, and the optical assembly 400 is driven to move by the screw-slider mechanism. Or the transmission mechanism can be a gear and rack mechanism, a gear is connected with the output shaft of the motor, a rack is connected with the optical assembly 400, the gear and the rack are meshed, and the rack is driven by the motor to do linear motion so as to drive the optical assembly 400 to move.
When the inspection apparatus includes two optical assemblies 400, a motor may be provided on the inspection station 200. The screw rod can be provided with screw thread sections with opposite screwing directions. Each optical module 400 is connected to a slider which respectively cooperates with oppositely threaded segments so that both optical modules 400 can be moved simultaneously inwardly or outwardly.
The detection table 200 may be provided with a sensor for detecting whether the curved panel 100 to be detected is placed in the accommodating portion 210, and a limit module for fixing the curved panel 100 to be detected to the accommodating portion 210. A sensor may be provided in the receiving portion 210, and the sensor may be a photoelectric sensor, a pressure sensor, a hall sensor, or the like. The limiting module may include a suction cup, the suction cup may be disposed in the accommodating portion 210, and when the curved screen 100 to be detected is placed in the accommodating portion 210, the suction cup sucks the curved screen 100 to be detected.
The accommodating portion 210 provided in the embodiments of the disclosure may be a plane flush with the surface of the stage, or the accommodating portion 210 may be a plane protruding from the surface of the stage or recessed from the surface of the stage, and the suction cup may be disposed at a center of the accommodating portion 210. The limiting module may further include a limiting block, and the limiting block is disposed in the accommodating portion 210 and may be slidably connected to the accommodating portion 210 to adapt to the test of the curved screens 100 with different sizes.
It is understood that, as shown in fig. 8, the detection apparatus provided by the embodiment of the present disclosure may further include a transparent cover 500, the transparent cover 500 is disposed on a side of the detection table 200 close to the image capturing assembly 300, and the optical assembly 400 is connected to the transparent cover 500.
Wherein the optical assembly 400 and the transparent cover 500 can be slidably connected, and the transparent cover 500 and the test platform 200 can be detachably connected. When the transparent cover plate 500 is connected with the detection table 200, the curved screen 100 can be detected, and after the transparent cover plate 500 is detached, the flat screen can be detected, so that the applicability of the detection device is improved. For example, the transparent cover 500 may be rotatably connected to the inspection station 200, and the transparent cover 500 and the optical assembly 400 are placed at an inspection position when the curved screen 100 needs to be inspected, and the transparent cover 500 is rotated to a non-inspection position when the flat screen needs to be inspected.
The transparent cover 500 may include a detection zone for detection and an edge zone, the detection zone including an area opposite the receptacle 210 and an optical assembly 400 mounting area. The edge zone is located at one edge or at multiple edges of the detection zone. A motor driving the optical assembly 400 to slide on the transparent cover plate 500 may be provided at the edge region.
The motor is connected to the optical assembly 400 through a transmission mechanism. The power output by the motor is transmitted to the optical assembly 400 through the transmission mechanism, and drives the optical assembly 400 to move. The transmission mechanism may be a screw-slider mechanism, the screw is connected to the output shaft of the motor, and the slider is connected to the optical assembly 400, so that the optical assembly 400 is driven to move by the screw-slider mechanism. Or the transmission mechanism can be a gear and rack mechanism, a gear is connected with the output shaft of the motor, a rack is connected with the optical assembly 400, the gear and the rack are meshed, and the rack is driven by the motor to do linear motion so as to drive the optical assembly 400 to move.
When two optical assemblies 400 are disposed on the transparent cover 500, a motor may be disposed on the inspection station 200. The screw rod can be provided with screw thread sections with opposite screwing directions. Each optical module 400 is connected to a slider which respectively cooperates with oppositely threaded segments so that both optical modules 400 can be moved simultaneously inwardly or outwardly.
Further, as shown in fig. 9, the detection apparatus provided by the embodiment of the present disclosure may further include a control module 600, and the control module 600 may be connected to the optical assembly 400 and the image capturing assembly 300 respectively. The control module 600 may be connected to the driving circuit 430 in the optical assembly 400 to transmit driving signals (one or more of power signals, scan signals, and data signals) to the driving circuit 430. The control module 600 is connected to the image capturing assembly 300 to receive the display image of the curved screen 100 captured by the image capturing assembly 300 and detect the display image of the curved screen 100. And further judging whether the curved screen 100 is qualified or not, wherein the judgment can be carried out by one or more of a tainted point judgment method, point-by-point scanning contrast analysis and a boundary judgment method.
The driving signal may be determined according to the size of the curved surface 120 of the curved surface screen 100 and the position relationship among the curved surface screen 100, the optical assembly 400 and the image capturing assembly 300. The optical unit 410 (the mirror 411 or the optical lens 452) is adjusted to deflect by the driving signal to adjust the light of the curved surface portion 120 to the image capturing assembly 300.
The control module 600 may include a processing unit, a signal providing unit, a power supply unit, and the like. The signal providing unit may be a TCON (timing control module 600), and the signal providing unit may be connected to the curved screen 100 to be detected to provide a gate driving signal, a source driving signal, and the like to the curved screen 100 to be detected. The power unit is used for providing power for the detection device and the curved screen 100, and the power unit can be a battery or other power sources.
In the embodiment of the present disclosure, the image capturing assembly 300 may include a camera, a bracket, a storage unit, a communication unit, and the like, the camera is mounted on the bracket, the storage unit is connected to the camera and is used for receiving and storing the image captured by the camera, and the communication unit is used for realizing communication between the image capturing assembly 300 and the control module 600. The communication unit may be a wired communication unit such as an I/O interface or the like. The communication unit may also be a wireless communication unit, such as a bluetooth communication unit, an infrared communication unit, a WiFi communication unit, and the like.
It should be noted that the detection device provided in the embodiment of the present disclosure may be used for detecting the curved screen 100, and of course, in practical applications, the detection device may also be used for detecting a flat screen. In the detection apparatus provided by the embodiment of the present disclosure, the optical assembly 400 and the test platform may also be a split structure, and the optical assembly 400 is mounted on the test platform 200 during detection. The detection apparatus provided in the embodiment of the present disclosure may be used for detecting an OLED (organic light-Emitting Diode) Display screen, and may also be used for detecting an LCD (Liquid Crystal Display), which is not specifically limited in this embodiment of the present disclosure.
The detection device provided by the embodiment of the disclosure adjusts the propagation direction of light emitted by the curved surface part 120 of the curved screen 100 to be detected through the optical units 410, so that the image acquisition assembly 300 opposite to the accommodating part 210 of the detection table 200 can simultaneously acquire display images of the curved surface part 120 and the plane part 110 of the display screen to be detected, thereby detecting the display of the curved screen 100 to be detected through the image, solving the problems of inconsistent detection standards and easy misjudgment and missed judgment caused by manual detection of the curved surface part 120 in the related art, and improving the accuracy and the detection efficiency of detection of the curved screen 100.
The exemplary embodiment of the present disclosure also provides a detection method for detecting the curved screen 100, as shown in fig. 10, the detection method may include the following steps:
s101, controlling a plurality of optical units to adjust light emitted by a curved surface part according to the curvature of the curved surface part of the curved surface screen to be detected;
step S103, acquiring a test image by using an image acquisition assembly, wherein the test image is a display image of the curved screen to be detected;
and step S105, determining whether the curved screen to be detected is qualified or not according to the test image.
According to the detection method provided by the embodiment of the disclosure, the propagation direction of the light emitted by the curved surface part 120 of the curved screen 100 to be detected is adjusted through the plurality of optical units 410, so that the image acquisition assembly 300 opposite to the accommodating part 210 of the detection table 200 can simultaneously acquire the display images of the curved surface part 120 and the plane part 110 of the display screen to be detected, the display of the curved screen 100 to be detected can be detected through the image, the problems of inconsistent detection standards and easiness in misjudgment and omission caused by manual detection of the curved surface part 120 in the related art are solved, and the detection accuracy and the detection efficiency of the curved screen 100 can be improved.
The following will describe in detail the steps of the detection method provided by the embodiments of the present disclosure:
in step S101, the plurality of optical units 410 may be controlled to adjust the light emitted from the curved surface portion 120 according to the curvature of the curved surface portion 120 of the curved screen 100 to be detected,
the optical unit 410 may include a mirror 411 or an optical lens 452, and the deflection of the optical unit 410 (the mirror 411 or the optical lens 452) may be adjusted according to the size of the curved portion 120 of the curved screen 100 and the position relationship of the curved light pattern, so as to adjust the light of the curved portion 120 to the image capturing assembly 300. The position relationship of the curved light pattern includes the position relationship among the curved screen 100, the optical assembly 400 and the image capturing assembly 300. The position relation of the curved light graph can be obtained by coordinate conversion calibration and other modes.
When the optical assembly 400 includes a plurality of mirrors 411, the driving device 420 includes a plurality of micro-electromechanical systems, each of which is correspondingly connected to one of the mirrors 411, and the micro-electromechanical systems are used for driving the mirrors 411 to deflect. The control module 600 provides a driving signal to the mems according to the size of the curved surface portion 120 of the curved surface panel 100 and the position relationship among the curved surface panel 100, the optical assembly 400 and the image capturing assembly 300, and the mems drives the mirror 411 to deflect.
When the optical assembly 400 includes a plurality of optical lenses 452, the driving device includes a plurality of micro-electro-mechanical systems, each of which is correspondingly connected to one of the optical lenses 452, and the micro-electro-mechanical systems are used for driving the optical lenses 452 to deflect. The control module 600 provides a driving signal to the mems according to the size of the curved portion 120 of the curved panel 100 and the position relationship among the curved panel 100, the optical assembly 400 and the image capturing assembly 300, and the mems drives the optical lens 452 to deflect.
In step S103, a test image may be obtained by the image capturing component 300, where the test image is a display image of the curved screen 100 to be detected.
Wherein, image acquisition component 300 can include camera (for example CCD camera), support, memory cell and communication unit etc. and the camera installation and support, memory cell and camera connection are used for receiving and the image of storing the camera collection, and communication unit is used for realizing image acquisition component 300 and control module 600 communication. The communication unit may be a wired communication unit such as an I/O interface or the like. The communication unit may also be a wireless communication unit, such as a bluetooth communication unit, an infrared communication unit, a WiFi communication unit, and the like.
The display image of the curved screen 100 to be tested can be collected through the camera, the display image of the curved screen 100 to be tested is sent to the control module 600 through the communication unit, or the display image of the curved screen 100 to be tested is temporarily stored in the storage unit and then sent to the control module 600 through the communication unit.
In step S105, it may be determined whether the curved screen 100 to be detected is qualified according to the test image.
The control module 600 is connected to the image capturing assembly 300 to receive the display image of the curved screen 100 captured by the image capturing assembly 300, and detect the display image of the curved screen 100. And further judging whether the curved screen 100 is qualified or not, wherein the judgment can be carried out by one or more of a tainted point judgment method, point-by-point scanning contrast analysis and a boundary judgment method.
By way of example, the detection method provided by the embodiment of the present disclosure may be implemented by the following steps:
placing the curved screen to be detected on the accommodating part on the detection table;
adjusting the position of the optical assembly and the deflection angle of an optical unit in the optical assembly so that the image acquisition assembly can acquire a complete curved screen display image;
judging whether the curved screen is qualified or not according to the image displayed by the curved screen;
and outputting a detection result of the current curved screen to be detected.
According to the detection method provided by the embodiment of the disclosure, the propagation direction of the light emitted by the curved surface part 120 of the curved screen 100 to be detected is adjusted through the plurality of optical units 410, so that the image acquisition assembly 300 opposite to the accommodating part 210 of the detection table 200 can simultaneously acquire the display images of the curved surface part 120 and the plane part 110 of the display screen to be detected, the display of the curved screen 100 to be detected can be detected through the image, the problems of inconsistent detection standards and easiness in misjudgment and omission caused by manual detection of the curved surface part 120 in the related art are solved, and the detection accuracy and the detection efficiency of the curved screen 100 can be improved.
It should be noted that although the various steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that these steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Thus, various aspects of the invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" unit.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (11)
1. The utility model provides a detection device for detect curved surface screen, curved surface screen includes plane portion and the curved surface portion that is located plane portion edge, its characterized in that, detection device includes:
the detection table is provided with an accommodating part, and the accommodating part is used for placing a curved screen to be detected;
the image acquisition assembly is opposite to the accommodating part and is used for acquiring a display image of the curved screen to be detected;
the optical assembly comprises a plurality of optical units, and the plurality of optical units are configured to be capable of adjusting the propagation direction of light emitted by the curved surface part of the curved screen to be detected so that the image acquisition assembly can acquire the image of the curved surface part.
2. The detection apparatus of claim 1, wherein the optical assembly further comprises:
and the driving device is connected with the optical unit and is used for driving the optical unit to deflect.
3. The detection apparatus according to claim 2, wherein the optical unit includes:
a plurality of mirrors arranged in an array;
the driving device includes:
and each micro-electromechanical system is correspondingly connected with one reflector and is used for driving the reflector to deflect.
4. The detection apparatus according to claim 2, wherein the optical unit includes:
a plurality of optical lenses distributed in an array;
the driving device includes:
and each micro-electro-mechanical system is correspondingly connected with one optical lens and is used for driving the optical lens to deflect.
5. The detection apparatus of claim 4, wherein the optical unit further comprises:
a connection unit provided at one side of the optical lens and connected with the optical lens, the micro electro mechanical system being connected with the connection unit.
6. A testing device according to claim 5 wherein the projection of the MEMS onto the optical element is in the region of the attachment element.
7. The detecting apparatus according to any one of claims 3 to 6, wherein the drive means further comprises:
the driving circuit is connected with the micro-electro-mechanical system and used for providing power signals for the micro-electro-mechanical system.
8. The detection device according to claim 1, wherein the optical assembly is disposed on both sides of the accommodating portion.
9. The inspection device of claim 8, wherein the optical assembly is slidably coupled to the inspection station.
10. The sensing device of claim 1, further comprising:
the transparent cover plate is arranged on one side, close to the image acquisition assembly, of the detection platform, and the optical assembly is connected to the transparent cover plate.
11. A detection method is used for detecting a curved screen, and is characterized by comprising the following steps:
controlling a plurality of optical units to adjust light emitted by the curved surface part according to the curvature of the curved surface part of the curved surface screen to be detected;
acquiring a test image by using an image acquisition assembly, wherein the test image is a display image of the curved screen to be detected;
and determining whether the curved screen to be detected is qualified or not according to the test image.
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