CN110987804A - Display panel macro inspection equipment and illumination control device and method thereof - Google Patents
Display panel macro inspection equipment and illumination control device and method thereof Download PDFInfo
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- CN110987804A CN110987804A CN201911280016.1A CN201911280016A CN110987804A CN 110987804 A CN110987804 A CN 110987804A CN 201911280016 A CN201911280016 A CN 201911280016A CN 110987804 A CN110987804 A CN 110987804A
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The application relates to a display panel macroscopic inspection device and an illumination control device and method thereof, which comprise an in-place detection module and an illumination control module, wherein the in-place detection module outputs an in-place signal to the illumination control module when detecting that a display panel enters the macroscopic inspection device, and the illumination control module outputs a light-on control command according to the received in-place signal to control a light source of a light box to be lightened; the in-place detection module outputs a leaving signal to the illumination control module when detecting that the display panel leaves the macro inspection equipment, and the illumination control module generates a delay instruction for prolonging the lighting of the light source of the light box according to the received leaving signal; the lighting device can be turned off when the display panel is not required to be detected, and the problem that the lighting device is continuously in a lighting state and is not beneficial to energy conservation and emission reduction is solved.
Description
Technical Field
The application belongs to the technical field of liquid crystal panel detection, and particularly relates to a display panel macro-inspection device and an illumination control device and method thereof.
Background
In the production process of display panels, product inspection is an important link in the whole production. The inspection of the liquid crystal panel includes microscopic inspection, macroscopic inspection, and data test, which are mutually supported. The macroscopic inspection equipment projects light to the glass substrate, and inspectors perform macroscopic inspection on the glass substrate by matching the light reflected by the glass substrate with different angles, such as detecting whether the panel has defects of uneven coating, bright and dark spots, foreign matters, scratches and the like.
The macro inspection equipment is usually placed in a light-blocking housing, and a light box and a backlight box are mounted on the housing to provide illumination for the macro inspection equipment, which facilitates photographing by an automatic optical device. At present, an upper lamp box is installed at the top of an outer cover, and the upper lamp box is provided with a metal lamp and a sodium lamp for illuminating macro-inspection equipment.
At present, a metal lamp is in a lighting state as long as the metal lamp is started in macro inspection equipment, but the metal lamp is not in a working state in real time, and if the metal lamp is continuously in the lighting state, the metal lamp is not beneficial to energy conservation and emission reduction, resources are wasted, the service life of the metal lamp is also shortened, and the cost is increased.
Disclosure of Invention
The technical problem that this application will solve is: the problem that the lighting device of the macroscopic inspection equipment is continuously in a lighting state and is not beneficial to energy conservation and emission reduction is solved.
In order to solve the technical problem, the application provides a display panel macroscopic examination device and an illumination control device and method thereof, and the application can light the bright illumination device of the macroscopic examination device when detecting that the display panel is to be examined, and turn off the illumination device when detecting that no display panel is to be examined, thereby saving energy and prolonging the service life of the illumination device.
The technical scheme adopted by the application for solving the technical problem is as follows:
the first aspect of the application provides an illumination control device of display panel macro inspection equipment, which comprises an in-place detection module and an illumination control module, wherein the signal output end of the in-place detection module is connected with the signal input end of the illumination control module, and the control signal output end of the illumination control module is connected with a lamp box of the macro inspection equipment;
the in-place detection module outputs an in-place signal to the illumination control module when detecting that the display panel enters the macroscopic inspection equipment, and the illumination control module outputs a light-on control command according to the received in-place signal to control the light source of the light box to be lightened;
the in-place detection module outputs a leaving signal to the illumination control module when detecting that the display panel leaves the macro inspection equipment, and the illumination control module generates a delay instruction for prolonging the lighting of the light source of the light box according to the received leaving signal;
and the lighting control module determines whether the in-place signal is received within the delay time according to the delay time in the delay instruction, and outputs a lamp turning-off control command to control the light source of the light box to be turned off when the in-place signal is not received.
Further, according to the illumination control device of the display panel macro inspection apparatus provided by the first aspect of the present application,
the lighting control module includes:
the in-place triggering unit is used for outputting a sheet detection signal when receiving the in-place signal of the in-place detection module; or when receiving the leaving signal of the in-place detection module, outputting a no-chip detection signal;
the illumination control unit is connected with the in-place trigger unit and used for outputting a light-on control command and controlling the light source to be lightened when receiving the film detection signal; or when the no-chip detection signal is received, a light-off control command is output to control the light source to be extinguished.
Further, according to the lighting control device of display panel macroscopical inspection equipment that this application first aspect provided, lighting control module is still including turning on light delay unit, turn on light delay unit's signal trigger end and connect the trigger unit's that targets in place no piece detection signal output, turn on light delay unit's signal reset end and connect the trigger unit that targets in place have a piece detection signal output, turn on light delay unit's time delay to signal output end and be connected to lighting control unit's signal reset end.
Further, according to the illumination control device of the display panel macro inspection apparatus provided in the first aspect of the present application, the illumination control module is implemented by a PLC controller.
Further, according to the illumination control apparatus of the display panel macro inspection device provided in the first aspect of the present application, the in-position detection module employs a capacitance type proximity sensor.
The second aspect of the present application provides an illumination control method for a display panel macro inspection apparatus, including:
detecting whether a display panel enters a macro inspection device;
when detecting that a display panel enters the macro inspection equipment, outputting a position signal;
outputting a light-on control command according to the in-place signal to control the light source of the light box to be lightened;
outputting a leave signal when it is detected that the display panel leaves the macro inspection apparatus;
generating a delay instruction for prolonging the lighting of the light source of the light box according to the leaving signal;
acquiring the lamp turn-on delay time in the delay instruction;
and when the in-place signal is not received within the lamp-on delay time, outputting a lamp-off control command to control the light source of the lamp box to be turned off.
Further, according to the illumination control method of the display panel macro inspection apparatus provided by the second aspect of the present application, whether or not the display panel enters the macro inspection apparatus is detected using the capacitance type proximity sensor.
Further, according to the illumination control method of the display panel macro inspection apparatus provided in the second aspect of the present application, the lighting-on delay time is set to an interval time from when one display panel finishes detection and leaves the macro inspection apparatus to when an adjacent subsequent display panel is conveyed to the macro inspection apparatus.
Further, according to the second aspect of the present application, there is provided an illumination control method for a display panel macro inspection apparatus, further comprising: and if the display panel is not detected to leave the macro-inspection equipment within the preset time, outputting a light-off control command.
A third aspect of the present application provides a macro inspection apparatus comprising the illumination control device of the first aspect of the present application.
The beneficial effect of this application is: the light source of the lamp box can be lightened when the display panel is detected to be detected, and the light source of the lamp box is closed when the display panel is not detected to be detected, so that the purposes of energy conservation and emission reduction are achieved, the replacement period of the lamp is shortened, and the cost is reduced.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
FIG. 1 is a schematic diagram of a lighting control device according to an embodiment of the present application;
FIG. 2 is a diagram of a lighting control module of an embodiment of the present application;
fig. 3 is a flowchart of a control method according to an embodiment of the present application.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
First embodiment
The present embodiment provides an illumination control device for a display panel macro inspection apparatus, and the present embodiment takes the example of controlling on and off of a metal lamp in an upper lamp box as an example, and the technical solution of the present embodiment may also be adopted for on and off control of other light sources.
The lighting control device of the embodiment comprises an in-place detection module and a lighting control module, wherein the signal output end of the in-place detection module is connected with the signal input end of the lighting control module, and the control signal output end of the lighting control module is connected with the lamp box of the macroscopic inspection equipment.
And the in-place detection module is arranged on the macroscopic inspection equipment and used for detecting whether the display panel to be detected enters the macroscopic inspection equipment or not and outputting an in-place signal to the illumination control module when the display panel is detected to enter the macroscopic inspection equipment.
And the illumination control module outputs a light-on control command according to the received in-place signal to control the light source of the light box to be lightened. And when the display panel is detected to leave the macro inspection equipment, a leaving signal is output to the illumination control module, and the illumination control module generates a delay instruction for prolonging the lighting of the light source of the light box according to the received leaving signal.
And the lighting control module determines whether the in-place signal is received within the lamp-on delay time according to the lamp-on delay time in the delay instruction, and outputs a lamp-off control command to control the light source of the lamp box to be turned off when the in-place signal is not received.
The technical scheme of the embodiment can achieve the purposes of energy conservation and emission reduction, prolong the service life of the lamp, reduce the replacement period of the lamp and reduce the cost.
As shown in fig. 1, the lighting control module of the present embodiment includes:
the in-place triggering unit is used for outputting a sheet detection signal when receiving the in-place signal of the in-place detection module; or when receiving the leaving signal of the in-place detection module, outputting a no-chip detection signal;
the illumination control unit is connected with the in-place trigger unit and used for outputting a light-on control command and controlling the light source to be lightened when receiving the film detection signal; or when the no-chip detection signal is received, a light-off control command is output to control the light source to be extinguished.
In this embodiment, the in-place detection module outputs an in-place signal to the in-place trigger unit when detecting that the display panel enters the macro inspection device, and outputs a leaving signal to the in-place trigger unit when detecting that the display panel leaves the macro inspection device.
When the in-place trigger unit receives the in-place signal, a sheet detection signal is output to the illumination control unit, and the illumination control unit is triggered to output a light-on control command to control the light source of the light box to be lightened; and when the leaving signal is received, a no-sheet detection signal is output to the illumination control unit, the illumination control unit is triggered to output a lamp turning-off control command, and the light source of the lamp box is controlled to be turned off.
As a possible implementation, the in-place detection module of this embodiment may be a capacitive proximity sensor, when a display panel approaches the capacitive proximity sensor, a capacitance parameter of the capacitive proximity sensor changes, so that a switching value output signal of the capacitive proximity sensor changes, and the lighting control module may determine whether the display panel enters the macro inspection device according to a signal change condition of the capacitive proximity sensor.
As a further optimized implementation scheme, the lighting control module of this embodiment is provided with a light-on delay unit, a signal trigger end of the light-on delay unit is connected to a no-chip detection signal output end of the in-place trigger unit, a signal reset end of the light-on delay unit is connected to a chip detection signal output end of the in-place trigger unit, and a delay signal output end of the light-on delay unit is connected to a signal reset end of the lighting trigger unit.
In the embodiment, when the lighting control module detects that the display panel enters the macro detection device and controls the metal lamp to be turned on, if the in-place trigger unit receives the leaving signal of the capacitive proximity sensor, it indicates that the current display panel has completed detection, and at this time, the lighting control module does not immediately control the metal lamp to be turned off, but triggers the lamp turn-on delay unit to be turned on. And within the delay time set by the lamp-on delay unit, if a new display panel enters the macroscopic inspection equipment again, the metal lamp is not turned off. For example:
and when the metal lamp is in an on state at the time T1, if the Nth display panel is detected to leave, starting the lamp-on delay unit, giving a delayed off time T to the metal lamp, and if the macro inspection equipment is detected to have the display panel in the time T1+ T, not turning off the metal lamp.
Through setting up the time delay unit of turning on light for two adjacent display panel get into the interval time of macroscopic examination equipment than short-term, need not close the metal lamp, can avoid frequent opening and closing of metal lamp, further improve the life of metal lamp.
Furthermore, the embodiment further provides a lamp turning-off timing unit, after the metal lamp is turned on, the lamp turning-off timing unit is started, and if the display panel is not detected to leave the macro inspection device within the preset timing time of the lamp turning-off timing unit, a lamp turning-off control command is output. The time for turning off the lamp can be set according to actual working experience.
The lighting control module of this embodiment may be implemented by a PLC controller, as shown in fig. 2, the in-place triggering unit may be implemented by using an auxiliary relay M0, the M0 triggers when receiving a rising edge pulse, the lighting control unit is implemented by using an auxiliary relay M3564 and an output relay Y1454 together, and the turn-on delay unit is implemented by using a timing relay T80.
The normally open contact of M0 is connected in parallel with the normally open contact of M3564, and both M0 and M3564 are connected to the relay coil of M3564.
The normally open contact of M3564 is connected with the relay coil of Y1454, the normally open contact of Y1454 is connected with the lamp-on control output coil L3564, and the normally closed contact of Y1454 is connected with the lamp-off control output coil L3565.
The rising edge of M0 triggers the normally open contact to connect with the reset coil of T80, the normally closed contact of M0 to connect with the relay coil of T80, and the normally open contact of T80 to connect with the reset coil of M0.
The light-off timing unit of the embodiment is realized by a timing relay T504, a normally open contact of L3564 is connected with a relay coil of the T504 in series, one end of a normally closed contact of the T504 is connected with a parallel point of normally open contacts of M0 and M3564 in series, and the other end of the normally closed contact of the T504 is connected with the relay coil of M3564 in series.
The present embodiment is provided with a metal lamp turning-on button L3164 and a metal lamp turning-off button L3165, and the metal lamp can be turned on or off manually. The SM400 in the figure is a special relay inside the PLC, and is always in a connection state during the power-on operation of the PLC.
Second embodiment
The present embodiment provides an illumination control method of a display panel macro inspection apparatus, as shown in fig. 3, including:
(1) detecting whether a display panel enters a macro inspection device;
(2) when detecting that a display panel enters the macro inspection equipment, outputting an in-place signal, and outputting a light-on control command according to the in-place signal to control a light source of the light box to be lightened;
(3) when the display panel is detected to leave the macro inspection equipment, a leaving signal is output, and a delay instruction for prolonging the lighting of a light source of the light box is generated according to the leaving signal;
(4) and acquiring the lamp-on delay time in the delay instruction, and outputting a lamp-off control command to control the light source of the lamp box to be turned off when the in-place signal is not received within the lamp-on delay time.
In this embodiment, if a leaving signal indicating that the display panel leaves the macro inspection apparatus is not received all the time within a predetermined time, it indicates that the detection operation may be suspended due to the fact that a detection person leaves a post or due to other reasons, and in this case, a light-off control command is output to control the metal light to be turned off. Of course, the metal lamp may also be turned off manually by the inspector.
The delay time is set as follows:
the turn-on delay time may be set to a time interval from when one display panel finishes detection and leaves the macro inspection apparatus to when an adjacent subsequent display panel is conveyed to the macro inspection apparatus. The interval time may be an empirical value or may be determined by dividing the distance separating two adjacent display panels by the transmission speed.
If the interval time is less than or equal to a minimum threshold (such as 5-10s), determining the turn-on delay time according to the minimum threshold; if the interval time is larger than a minimum threshold (such as 5-10s) and smaller than or equal to a maximum threshold (such as 10-20s), determining the turn-on delay time according to the maximum threshold; if the interval time is greater than the maximum threshold (e.g., 10-20s), the turn-on delay time is controlled to be one third to one half of the minimum threshold.
The turn-on delay time is controlled by detecting the interval time, so that the turn-on delay time can be reasonably determined, the light source of the light box is prevented from being frequently turned on and off, and the service life of the light source of the light box is prolonged.
The apparatus for implementing the control method of this embodiment refers to the first embodiment, and the specific implementation manner and the execution process refer to the first embodiment.
The third embodiment:
the present embodiment provides a macro inspection apparatus of a display panel including the illumination control device as described in the first embodiment.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The lighting control device of the display panel macro-inspection equipment is characterized by comprising an in-place detection module and a lighting control module, wherein the signal output end of the in-place detection module is connected with the signal input end of the lighting control module, and the control signal output end of the lighting control module is connected with a lamp box of the macro-inspection equipment;
the in-place detection module outputs an in-place signal to the illumination control module when detecting that the display panel enters the macroscopic inspection equipment, and the illumination control module outputs a light-on control command according to the received in-place signal to control the light source of the light box to be lightened;
the in-place detection module outputs a leaving signal to the illumination control module when detecting that the display panel leaves the macro inspection equipment, and the illumination control module generates a delay instruction for prolonging the lighting of the light source of the light box according to the received leaving signal;
and the lighting control module determines whether the in-place signal is received within the lamp-on delay time according to the lamp-on delay time in the delay instruction, and outputs a lamp-off control command to control the light source of the lamp box to be turned off when the in-place signal is not received.
2. The illumination control apparatus of the display panel macro inspection device according to claim 1, wherein the illumination control module includes:
the in-place triggering unit is used for outputting a sheet detection signal when receiving the in-place signal of the in-place detection module; or when receiving the leaving signal of the in-place detection module, outputting a no-chip detection signal;
the illumination control unit is connected with the in-place trigger unit and used for outputting a light-on control command and controlling the light source to be lightened when receiving the film detection signal; or when the no-chip detection signal is received, a light-off control command is output to control the light source to be extinguished.
3. The lighting control device of the display panel macro inspection apparatus according to claim 2, wherein the lighting control module further comprises a lamp-on delay unit, a signal triggering end of the lamp-on delay unit is connected to a no-chip detection signal output end of the in-place triggering unit, a signal resetting end of the lamp-on delay unit is connected to a chip detection signal output end of the in-place triggering unit, and a delay signal output end of the lamp-on delay unit is connected to a signal resetting end of the lighting control unit.
4. The illumination control device of the display panel macro inspection apparatus of claim 3, wherein the illumination control module is implemented by a PLC controller.
5. The illumination control device of the display panel macro inspection apparatus of claim 1, wherein the in-place detection module employs a capacitive proximity sensor.
6. An illumination control method of a display panel macro inspection apparatus, comprising:
detecting whether a display panel enters a macro inspection device;
when detecting that a display panel enters the macro inspection equipment, outputting a position signal;
outputting a light-on control command according to the in-place signal to control the light source of the light box to be lightened;
outputting a leave signal when it is detected that the display panel leaves the macro inspection apparatus;
generating a delay instruction for prolonging the lighting of the light source of the light box according to the leaving signal;
acquiring the lamp turn-on delay time in the delay instruction;
and when the in-place signal is not received within the lamp-on delay time, outputting a lamp-off control command to control the light source of the lamp box to be turned off.
7. The illumination control method of the display panel macro inspection apparatus of claim 6, wherein whether or not the display panel enters the macro inspection apparatus is detected using a capacitance type proximity sensor.
8. The illumination control method of the display panel macro inspection apparatus according to claim 6, wherein the turn-on delay time is set to an interval time from completion of detection of one display panel out of the macro inspection apparatus to conveyance of an adjacent subsequent display panel to the macro inspection apparatus.
9. The illumination control method of the display panel macro inspection apparatus of claim 6, further comprising: and if the display panel is not detected to leave the macro-inspection equipment within the preset time, outputting a light-off control command.
10. A macro-inspection apparatus, characterized by comprising an illumination control device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911280016.1A CN110987804A (en) | 2019-12-13 | 2019-12-13 | Display panel macro inspection equipment and illumination control device and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911280016.1A CN110987804A (en) | 2019-12-13 | 2019-12-13 | Display panel macro inspection equipment and illumination control device and method thereof |
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Application publication date: 20200410 |