CN218566417U - Attached detection device of polarizing plate - Google Patents
Attached detection device of polarizing plate Download PDFInfo
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- CN218566417U CN218566417U CN202221716113.8U CN202221716113U CN218566417U CN 218566417 U CN218566417 U CN 218566417U CN 202221716113 U CN202221716113 U CN 202221716113U CN 218566417 U CN218566417 U CN 218566417U
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Abstract
The utility model discloses a polarizing plate attaching detection device, which comprises a transmission module, an optical signal module, an emission module, a receiving module and a control module; the transmitting module and the receiving module are arranged oppositely; the transmission module is used for moving a panel to be detected to a detection position between the transmitting module and the receiving module; the optical signal module is used for emitting a first optical signal when the panel to be detected is at the detection position; the first optical signal is transmitted to the panel to be tested through the transmitting module; the optical signal module receives the second optical signal through the receiving module and generates a detection signal according to the second optical signal; the control module is used for detecting the attaching state of the polarizing plate according to the detection signal and a preset standard signal. The utility model provides a technical scheme has reduced the check out test set cost, adapts to each type product and detects, has avoided the unable reconnaissance of no frame product, leads to the problem of unusual expansion.
Description
Technical Field
The embodiment of the utility model provides an it shows technical field to relate to an attached detection device of polarizing plate.
Background
The liquid crystal display device has many advantages of thin body, power saving, no radiation, etc., and is widely used. The polarizing plate is attached to the surface of a glass substrate and is used for controlling light to pass in a specific direction, and then the optical rotation effect of liquid crystal on polarized light is utilized, so that the light can selectively pass through, and the liquid crystal panel can display different pictures.
Attached precision of polarizing plate is through its edge of polarizing plate attached completion back distance to the display panel edge and weighs, the less precision of distance is higher, otherwise the distance is the precision lower more, present precision detection need increase the precision inspection machine and come attached effect and confirm, this has increased equipment cost undoubtedly, the price/performance ratio is extremely low, and along with the development of liquid crystal display panel product, the liquid crystal display panel product is mostly no frame design, the frame is extremely narrow, very easily think the polarizing plate edge with the frame edge mistake when precision inspection machine shoots through the ring light surface, can not discern the pseudo-subsides of polarizing plate, not paste the state such as, and then lead to the product bad, the bad scheduling problem of module processing procedure.
SUMMERY OF THE UTILITY MODEL
The utility model provides an attached detection device of polarizing plate has reduced the check out test set cost, adapts to each type product and detects, has avoided the no frame product can't listen, leads to the problem of unusual expansion.
The embodiment of the utility model provides a polarizing plate attaching detection device, which comprises a transmission module, an optical signal module, an emission module, a receiving module and a control module;
the optical signal module is respectively connected with the transmitting module and the receiving module; the transmitting module and the receiving module are arranged oppositely; the transmission module is used for moving a panel to be detected to a detection position between the transmitting module and the receiving module;
the optical signal module is used for emitting a first optical signal when the panel to be detected is at the detection position; the transmitting module is used for transmitting the first optical signal to the panel to be tested; the receiving module is used for receiving a second optical signal after the first optical signal passes through the panel to be tested; the optical signal module is further used for generating a detection signal according to the second optical signal;
the control module is connected with the optical signal module; the control module is used for detecting the attaching state of the polarizing plate according to the detection signal and a preset standard signal.
Optionally, the control module is connected with the transmission module; the control module is also used for generating a control signal according to the attaching state; the transmission module is also used for moving the panel to be tested to a preset area according to the control signal.
Optionally, the transmitting module and the receiving module are correlation type optical fiber sensors.
Optionally, the polarizing plate attaching detection device further includes a detection bracket; the detection bracket comprises a first platform, a second platform, a connecting part and a pair of fixed brackets; the first platform is connected with the second platform through the connecting part; wherein the first platform and the second platform are arranged in parallel; the fixed brackets are respectively arranged on the first platform and the second platform; the fixed support is used for fixing the transmitting module or the receiving module.
Optionally, the connecting portion is perpendicular to the first platform and the second platform, respectively.
Optionally, the detection bracket comprises a plurality of pairs of fixing brackets; and each pair of fixed brackets are arranged side by side at intervals of a preset distance.
Optionally, in the first direction, at least two first through holes are arranged in parallel on the first platform; the first direction is the extending direction of the intersecting edge of the first platform and the connecting part;
the fixed support is provided with at least two second through holes in parallel; the interval between the second through holes is equal to the interval between the first through holes; the first platform and the second platform are of symmetrical structures.
Optionally, the fixing bracket is further provided with a third through hole, and a vertical projection of the third through hole in a direction perpendicular to the first platform is not overlapped with the first platform or the second platform; the third through hole is used for fixing the transmitting module or the receiving module.
Optionally, the first through hole, the second through hole and the third through hole are circular holes or strip-shaped holes.
Optionally, the polarizing plate attaching detection device further includes a support frame; the connecting part is provided with a fourth through hole, and the fourth through hole is connected with the supporting frame; the support frame is used for adjusting the height of the detection support.
The embodiment of the utility model provides a technical scheme, set up emission module and receiving module relatively, and the panel that will await measuring removes to between emission module and the receiving module, emission module sends first light signal to and waits to detect the panel, when there is the anomaly in the attached state of polarizing plate, the intensity of the second light signal that receiving module received, angle isoparametric is different when normally attaching the state, consequently, control module corresponds the detected signal when the detected signal that corresponds according to the second light signal and normally attaching the state, the default compares promptly, can judge the attached state of polarizing plate that waits to detect the panel. The embodiment of the utility model provides a technical scheme need not to use the precision inspection machine based on image analysis, utilizes the small-cost design to reform transform, has reduced equipment use cost, and simultaneously, the testing process need not to evaluate the distance at frame and polaroid edge, still can realize detecting to narrow frame product, has avoided the no frame product can't listen, leads to unusual expansion problem.
Drawings
Fig. 1 is a schematic structural view of an attached detection device for a polarizing plate according to an embodiment of the present invention.
Fig. 2 is a schematic view of a partial structure of an attached inspection device for a polarizing plate according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a detecting bracket of an attached detecting device for polarizing plate according to an embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The conventional polarizing plate attachment accuracy detection device generally detects the polarizing plate attachment accuracy of a display panel to which a polarizing plate is attached by using an image sensor. The image sensor respectively takes pictures of the display panel, the edge of the polarizing plate and the edge of the display panel are found out through image analysis, whether the attaching precision of the polarizing plate is within the specification range or not is judged, when the polarizing plate is in a false attaching state or an non-attaching state, the state of the polarizing plate cannot be well reflected through image detection, and the precision inspection machine based on the image detection is high in equipment cost, so that the detection cost is increased.
Fig. 1 is a schematic structural diagram of a polarizer attachment inspection apparatus according to an embodiment of the present invention, referring to fig. 1, including a transmission module 110, an optical signal module 120, an emission module 130, a reception module 140, and a control module 150;
the optical signal module 120 is respectively connected with the transmitting module 130 and the receiving module 140; the transmitting module 130 is arranged opposite to the receiving module 140; the transmission module 110 is used for moving the panel to be tested to a detection position between the transmission module 130 and the receiving module 140;
the optical signal module 120 is configured to emit a first optical signal when the panel to be tested is at the detection position; the transmitting module 130 is configured to transmit the first optical signal to the panel to be tested; the receiving module 140 is configured to receive a second optical signal after the first optical signal passes through the panel to be tested; the optical signal module 120 is further configured to generate a detection signal according to the second optical signal;
the control module 150 is connected with the optical signal module 120; the control module 150 is configured to detect an attachment state of the polarizer according to the detection signal and a predetermined standard signal.
Specifically, the output end of the optical signal module 120 is connected to the transmitting module 130 through an optical fiber, the input end of the optical signal module 120 is connected to the receiving module 140 through an optical fiber, the transmitting module 130 and the receiving module 140 are arranged opposite to each other, a certain distance is provided between the transmitting module 130 and the receiving module 140, and the distance between the transmitting module 130 and the receiving module 140 serves as a detection position. When the test is started, the transmission module 110 moves the panel 160 to be tested to the testing position, i.e. between the transmission module 130 and the receiving module 140. The transmission module 110 is used for carrying the panel 160 to be tested, and the transmission module 110 drives the lead screw through the motor to move the panel 160 to be tested on the preset slide rail, so that the panel 160 to be tested can be moved to a specified position. The transmission module 110 may adopt a material taking suction cup 111 to take and place the panel 160 to be tested.
The polarizing plate attaching detection process comprises the following steps: after the transmission module 110 takes the panel 160 to be detected from the upstream platform, the panel 160 to be detected is moved to the detection position according to the position set by the program, after the transmission module 110 moves the panel 160 to be detected to the detection position, the optical signal module 120 emits a detection optical signal, that is, a first optical signal, the first optical signal is transmitted to the transmission module 130 through the connection optical fiber, the transmission module 130 transmits the first optical signal to the panel 160 to be detected, the first optical signal passes through the panel 160 to be detected, the reception module 140 receives a second optical signal passing through the panel 160 to be detected, the second optical signal returns to the optical signal module 120 through the connection optical fiber, the optical signal module 120 can convert the second optical signal into a detection signal after photoelectric conversion, and the detection signal is sent to the control module 150. The control module 150 can determine the attaching state of the polarizer of the panel 160 according to the detection signal and the preset value. The preset value is a detection signal, i.e., a standard value, corresponding to the second signal received by the receiving module 140 when the polarizer is attached normally.
The polarizing plate attaching state includes a non-attaching state and a pseudo-attaching state, wherein when the polarizing plate attaching state is not attached, the thickness of the panel 160 to be tested is different from the normal attaching state, and thus after the first optical signal transmitted by the transmitting module 130 passes through the panel 160 to be tested, the attenuation degree of the first optical signal is different from the attenuation degree in the normal attaching state, and further the detection signal is different. When the polarizing plate is attached in a pseudo-manner, that is, the polarizing plate is not completely attached, and a pseudo-attachment exists. Therefore, the angle of the polarizer of the panel to be tested 160 is different from the normal attachment state, and a part of the first optical signal emitted by the emitting module 130 is emitted after passing through the panel to be tested 160, so as to affect the receiving intensity of the receiving module 140 for receiving the second optical signal, thereby affecting the detection signal. Therefore, the control module 150 can determine the attached state of the polarizer of the panel 160 by comparing the detection signal with the predetermined value. Preferably, the connection line between the transmitting module 130 and the receiving module 140 is perpendicular to the panel 160 to be tested, that is, the first optical signal emitted from the transmitting module 130 is perpendicular to the panel 160 to be tested, so that the reflection of the first optical signal by the panel 160 to be tested is reduced, and the receiving intensity of the receiving module 140 is further improved.
The embodiment of the utility model provides a technical scheme, set up emission module and receiving module relatively, and the panel that will await measuring removes to between emission module and the receiving module, emission module sends first light signal to and waits to detect the panel, when there is the anomaly in the attached state of polarizing plate, the intensity of the second light signal that receiving module received, angle isoparametric is different when normally attaching the state, consequently, control module corresponds the detected signal when the detected signal that corresponds according to the second light signal and normally attaching the state, the default compares promptly, can judge the attached state of polarizing plate that waits to detect the panel. The embodiment of the utility model provides a technical scheme need not to use the precision inspection machine based on image analysis, utilizes the small-cost design to reform transform, has reduced equipment use cost, and simultaneously, the testing process need not to evaluate the distance at frame and polarisation flange edge, still can realize detecting to narrow frame product, has avoided the no frame product can't listen and has lead to unusual expansion problem.
Optionally, the control module 150 is connected to the transmission module 110; the control module 150 is further configured to generate a control signal according to the attachment state; the transmission module 110 is further configured to move the panel 160 to be tested to a predetermined area according to the control signal.
Specifically, the polarizer attaching state includes a non-attached state and a false-attached state, and the second optical signal received by the receiving module 140 is different in different polarizer attaching states, so that the corresponding detection signals are different. The control module 150 may generate corresponding control signals according to different detection signals. After the transmission module 110 receives the corresponding control signal, the transmission module 110 moves the panel 160 to be tested to the corresponding position. For example, the corresponding positions include an abnormal discharge position and a normal blanking position. For example, personnel recheck can be set at each discharge position, so that false detection caused by missed detection is avoided.
Wherein, driven work engineering does: when the control module 150 determines that the panel 160 to be tested is abnormal according to the detection signal and the preset value, the control module outputs an abnormal control signal, and the transmission module 110 moves to the normal blanking position to discharge the panel 160 to be tested to the blanking platform. When the control module 150 determines that the panel 160 to be tested is abnormal, the transmission module 110 moves to the abnormal discharge position, and simultaneously, an alarm can be given to remind an engineer of performing a recheck.
Optionally, the transmitting module 130 and the receiving module 140 are correlation type optical fiber sensors.
Specifically, the opposite-type optical fiber sensor has good sensitivity and detection speed, the transmitting module 130 is used as a light emitting part of the opposite-type optical fiber sensor, the receiving module 140 is used as a light receiving part of the opposite-type optical fiber sensor, the optical fiber heads of the transmitting module 130 and the receiving module 140 are arranged on a straight line, and when the polarizing plates are attached in different states, the second optical signal received by the receiving module 140 generates signal change.
Fig. 2 is a schematic view of a partial structure of a polarizer attachment detection device according to an embodiment of the present invention, fig. 3 is a schematic view of a detection bracket of a polarizer attachment detection device according to an embodiment of the present invention, and referring to fig. 2 and fig. 3, the polarizer attachment detection device further includes a detection bracket 210; the detection bracket 210 includes a first platform 310, a second platform 320, a connecting portion 340, and a pair of fixing brackets 330; the first platform 310 is connected with the second platform 320 through a connecting part 340; wherein the first platform 310 and the second platform 320 are arranged in parallel; the fixing brackets 330 are respectively provided on the first platform 310 and the second platform 320; the fixing bracket 330 is used to fix the transmitting module 130 or the receiving module 140.
Specifically, the first platform 310 and the second platform 320 are arranged in parallel, wherein the first platform 310 and the second platform 320 are connected by the connecting portion 340, for example, the first platform 310, the second platform 320 and the connecting portion 340 may be formed in an integral structure, and in order to ensure the stability of the test rack 210 and avoid the deformation of the test rack, the first platform 310, the second platform 320 and the connecting portion 340 may be made of a metal material and may be made into a shape similar to a "U". The fixing bracket 330 is used for fixedly placing the transmitting module 130 or the receiving module 140, and the transmitting module 130 and the receiving module 140 are arranged in pairs, so that the fixing bracket 330 also needs to be arranged in pairs, the fixing bracket 330 is respectively fixed on the first platform 310 and the second platform 320, and the transmitting module 130 and the receiving module 140 are fixed by using the fixing bracket 330, thereby avoiding the position deviation of the transmitting module 130 and the receiving module 140 and the influence on the measurement accuracy.
Alternatively, the connection part 340 is perpendicular to the first platform 310 and the second platform 320, respectively.
Specifically, the connecting portion 340 is perpendicular to the first platform 310 and the second platform 320, respectively, the transmission module 110 enables the panel 160 to be tested to be parallel to the first platform 310 through the material taking suction cup 111, and moves the panel 160 to be tested between the first platform 310 and the second platform 320, so that the optical signal transmission paths of the transmitting module 130 and the receiving module 140 are perpendicular to the panel 160 to be tested, and the loss of the first optical signal is reduced. Meanwhile, the first platform 310 and the second platform 320 can define a uniform detection position, so that the detection position can be set by a program conveniently, and the operation accuracy of the transmission module 110 is improved.
With continued reference to FIG. 3, the detection carriage 210 includes a plurality of pairs of fixed carriages 330; the fixing brackets 330 on the same platform are arranged side by side at a predetermined distance.
Specifically, pairs of fixing brackets 330 are disposed on the parallel first platform 310 and the parallel second platform 320, each pair of fixing brackets 330 is used as a detection group, and a preset distance is set between each pair of detection groups, so that the panel 160 to be detected can be placed in a space between each pair of fixing brackets 330. Adaptability, drive module 110 can get material sucking disc 111 through the multiunit, will await measuring panel 160 respectively and remove to a detection group to can detect by the multiunit, improve detection efficiency. For example, in this embodiment, a pair of fixing brackets 330 is respectively disposed at two ends of the first platform 310 and the second platform 320, that is, the detection is performed through two sets of the transmitting modules 130 and the receiving modules 140, wherein the optical signal modules 120 may be respectively equipped, or may multiplex one set of the optical signal modules 120, and the detection is performed on two sets of panels 160 to be detected by using different light emitting timings, so as to implement bilateral detection corresponding to bilateral production, thereby improving the detection efficiency.
With continued reference to fig. 3, optionally, in the first direction a, at least two first through holes 410 are arranged side by side on the first platform 310; wherein, the first direction a is an extending direction of an intersecting edge of the first platform 310 and the connecting portion 340;
the fixing bracket 330 is provided with at least two second through holes 420 side by side; the interval between the second through holes 420 is equal to the interval between the first through holes 410; the first platform 310 and the second platform 320 are symmetrical structures.
Specifically, the first platform 310 and the second platform 320 are arranged in the same structure, taking the first platform 310 as an example, at least two first through holes 410 are arranged side by side in the first direction a of the first platform 310, and the fixing bracket 330 is fixed through the two through holes compared with one first through hole 410, so that stability is better achieved, and the fixing bracket 330 is prevented from being inclined. A plurality of first through holes 410 may also be provided in a second direction b, wherein the first direction a is an extension direction of an edge where the first platform 310 and the connection part 340 meet, and the second direction b is perpendicular to the first direction a.
The fixing bracket 330 is provided with at least two second through holes 420 side by side, and when the fixing bracket 330 is fixedly connected to the respective platforms, the second through holes 420 cover the first through holes 410, and therefore, the interval between the first through holes 410 and the interval between the second through holes 420 are equal, so that the fixing bracket 330 can arbitrarily adjust the fixed position on the first through holes 410, illustratively, the first platform 310 and the second platform 320 are rectangular, and the first through holes 410 are arranged on the first platform 310 in the length and width directions to form a through hole matrix. Therefore, the mounting position of the fixing bracket 330 is adjusted according to the size of the panel 160 to be measured, the position switching is simple, and the position adjusting and switching time is shortened.
Optionally, the fixing bracket 330 is further provided with a third through hole 430, and a vertical projection of the third through hole 430 in a direction perpendicular to the first platform 310 does not overlap with the first platform 310 or the second platform 320; the third through hole 430 is used to fix the transmitting module 130 or the receiving module 140.
Specifically, the fixing bracket 330 is further provided with a third through hole 430, the third through hole 430 is used for limiting and fixedly mounting the transmitting module 130 or the receiving module 140, wherein the third through hole 430 is not blocked by the first platform 310 or the second platform 320, and the transmitting module 130 or the receiving module 140 mounted in the third through hole 430 can smoothly realize the transmission of the first optical signal or the reception of the second optical signal.
Optionally, the first through hole 410, the second through hole 420, and the third through hole 430 are circular holes or bar-shaped holes. Specifically, the circular port is convenient for fix a position the installation, and the bar hole is convenient for the hole site and is adjusted, and the application of specific pass can be selected according to application environment, and is exemplary, the embodiment of the utility model provides a, first through-hole 410 at first platform 310 and second platform 320 both ends sets up to the bar hole, and second through-hole 420 is the bar hole, and consequently fixed bolster 330 can stretch out length on the platform in the second direction and adjust. The third through hole 430 is a strip-shaped hole, and the transmitting module 130 or the receiving module 140 can be adjusted and limited in the first direction a. Circular holes are selected as the first through holes in the middle area of each platform, and it should be noted that the selection of the hole patterns in the embodiment of the present invention is only used as an illustration and is not specifically limited.
Optionally, the polarizer attachment detection device further comprises a support frame; the connecting part is provided with a fourth through hole, and the fourth through hole is connected with the supporting frame; the support frame is used for adjusting the height of the detection support.
Specifically, the support frame can adopt the aluminium alloy preparation for provide the support that detects the support, make the detection support be in suitable high position. The connecting portion that detect the support set up the fourth through-hole, detect the support and pass through the fourth through-hole and the support frame is connected through structures such as bolt, to different transmission module, can set up appropriate height to satisfy the test requirement.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The polarizing plate attaching detection device is characterized by comprising a transmission module, an optical signal module, an emission module, a receiving module and a control module;
the optical signal module is respectively connected with the transmitting module and the receiving module; the transmitting module and the receiving module are arranged oppositely; the transmission module is used for moving a panel to be detected to a detection position between the transmitting module and the receiving module;
the optical signal module is used for emitting a first optical signal when the panel to be detected is at the detection position; the transmitting module is used for transmitting the first optical signal to the panel to be tested; the receiving module is used for receiving a second optical signal after the first optical signal passes through the panel to be detected; the optical signal module is further used for generating a detection signal according to the second optical signal;
the control module is connected with the optical signal module; the control module is used for detecting the attaching state of the polarizing plate according to the detection signal and a preset standard signal.
2. The device for detecting attachment of a polarizing plate according to claim 1, wherein the control module is connected to the transmission module; the control module is also used for generating a control signal according to the attaching state; the transmission module is also used for moving the panel to be tested to a preset area according to the control signal.
3. The device for detecting attachment of a polarizing plate according to claim 1, wherein the transmitting module and the receiving module are opposite-type optical fiber sensors.
4. The polarizing plate attachment inspection device according to claim 1, further comprising an inspection stand; the detection bracket comprises a first platform, a second platform, a connecting part and a pair of fixed brackets; the first platform is connected with the second platform through the connecting part; wherein the first platform and the second platform are arranged in parallel; the fixed brackets are respectively arranged on the first platform and the second platform; the fixing support is used for fixing the transmitting module or the receiving module.
5. The device of claim 4, wherein the connecting portions are perpendicular to the first platform and the second platform, respectively.
6. The device for detecting attachment of a polarizing plate according to claim 4, wherein the detecting bracket comprises a plurality of pairs of fixing brackets; and each pair of fixed brackets are arranged side by side at intervals of a preset distance.
7. The device for detecting attachment of a polarizing plate according to claim 4, wherein at least two first through holes are provided side by side on the first stage in a first direction; the first direction is the extending direction of the intersecting edge of the first platform and the connecting part;
the fixed support is provided with at least two second through holes in parallel; the interval between the second through holes is equal to the interval between the first through holes; the first platform and the second platform are of symmetrical structures.
8. The device for detecting attachment of a polarizing plate according to claim 7, wherein the fixing bracket is further provided with a third through hole, and a perpendicular projection of the third through hole in a direction perpendicular to the first platform does not overlap with the first platform or the second platform; the third through hole is used for fixing the transmitting module or the receiving module.
9. The polarizing plate attachment inspection device according to claim 8, wherein the first through-hole, the second through-hole, and the third through-hole are circular holes or strip-shaped holes.
10. The polarizing plate attachment inspection device according to any one of claims 4 to 9, further comprising a support frame; the connecting part is provided with a fourth through hole, and the fourth through hole is connected with the supporting frame; the support frame is used for adjusting the height of the detection support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221716113.8U CN218566417U (en) | 2022-06-30 | 2022-06-30 | Attached detection device of polarizing plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221716113.8U CN218566417U (en) | 2022-06-30 | 2022-06-30 | Attached detection device of polarizing plate |
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| CN218566417U true CN218566417U (en) | 2023-03-03 |
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| CN202221716113.8U Active CN218566417U (en) | 2022-06-30 | 2022-06-30 | Attached detection device of polarizing plate |
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- 2022-06-30 CN CN202221716113.8U patent/CN218566417U/en active Active
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