CN114018544B - Lighting device and lighting method - Google Patents
Lighting device and lighting method Download PDFInfo
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- CN114018544B CN114018544B CN202110792124.8A CN202110792124A CN114018544B CN 114018544 B CN114018544 B CN 114018544B CN 202110792124 A CN202110792124 A CN 202110792124A CN 114018544 B CN114018544 B CN 114018544B
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 239000003086 colorant Substances 0.000 claims description 11
- 230000007547 defect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 20
- 210000003128 head Anatomy 0.000 description 20
- 238000010586 diagram Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000004397 blinking Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The present invention relates to a lighting device and a lighting method. The lighting device detachably installs on place the platform, and the lighting device is used for waiting to lighten the structure, and the lighting device includes: the carrier is detachably connected with the placing platform, and the structure to be lightened is detachably arranged on the carrier; the alignment pressing block is arranged on one side of the carrier and is respectively abutted against the side walls of the carrier and the structure to be lightened, and the carrier and the alignment pressing block are respectively limited on the structure to be lightened; and the lighting device is electrically connected with the structure to be lighted to light the structure to be lighted. The invention solves the problems of low detection efficiency and inaccurate detection position of the structure to be lightened in the prior art.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a lighting device and a lighting method.
Background
The LEDs are subjected to the process of die bonding by die bonding before lighting inspection, but die bonding by die bonding is easy to have adverse effect on the LEDs. When the LED chip is lighted and inspected, the bad phenomenon is generally caused on the LEDs on the structure to be lighted, so that bad points, bad defects and the like are required to be maintained, manual maintenance is generally adopted at present, the efficiency and the yield are low, but the number of LED chips transferred is increased, the number of maintenance after the LED chips are fixed is increased, and the manual maintenance cannot meet the requirements.
That is, the structure to be lightened in the prior art has the problems of low detection efficiency and inaccurate inspection position.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present application is to provide a lighting device and a lighting method, which are aimed at solving the problems of low detection efficiency and inaccurate inspection position of a structure to be lit in the prior art.
A lighting device detachably mounted on a placement platform, the lighting device being for lighting a structure to be lit, the lighting device comprising: the carrier is detachably connected with the placing platform, and the structure to be lightened is detachably arranged on the carrier; the alignment pressing block is arranged on one side of the carrier and is respectively abutted against the side walls of the carrier and the structure to be lightened, and the carrier and the alignment pressing block are respectively limited on the structure to be lightened; and the lighting device is electrically connected with the structure to be lighted to light the structure to be lighted.
The carrier can be connected with the place platform detachable to make the carrier can be fixed on the place platform, in order to guarantee that the position of carrier on the place platform can not change, in order to guarantee the stability of carrier work. The cooperation of counterpoint briquetting and carrier can be with waiting to lighten the structure spacing on the carrier for the carrier is fixed with waiting to lighten the position of structure relatively, and then makes waiting to lighten the position of structure on place the platform and is fixed, is convenient for record waiting to lighten the coordinate of the last bad point of structure. The arrangement of the lighting device can light the structure to be lighted so as to detect the structure to be lighted. The lighting device can fix the position of the structure to be lighted and simultaneously can lighten the structure to be lighted so as to realize rapid detection of the structure to be lighted.
Optionally, the side wall of the structure to be lightened, which is abutted to the alignment pressing block, is a first side wall, and the carrier is provided with a limiting structure, and the limiting structure is abutted to the side wall of the structure to be lightened except the first side wall.
Optionally, at least a portion of the lighting device is detachably connected with the alignment pressing block, the lighting device has a pin, a side of the structure to be lit, which is close to the alignment pressing block, has a test structure, and the pin contacts with the test structure to light the structure to be lit.
Optionally, the surface that counterpoint briquetting and place the platform and be connected has the spacing groove, and the lateral wall intercommunication of spacing groove and counterpoint briquetting waits to lighten the structure and stretch into spacing inslot and spacing groove's cell wall butt.
Optionally, the alignment pressing block is provided with a mounting notch, the mounting notch is located in the limiting groove, at least a part of the structure to be lightened is exposed at the mounting notch, and at least a part of the lightening device is mounted at the mounting notch to be electrically connected with the structure to be lightened.
Optionally, the lighting device includes: a power supply device; one end of the transmission line is connected with the power supply device; the other end of the transmission line is connected with the voltage input pressure head, and the voltage input pressure head is arranged at the mounting notch and is electrically connected with the structure to be lightened.
Optionally, the voltage input pressure head and the mounting notch are correspondingly arranged.
Optionally, the voltage input ram comprises: the transmission main body is connected with the transmission line and extends into the mounting notch to be electrically connected with the structure to be lightened; and the supporting structure extends from two opposite sides of the transmission main body and is detachably connected with the alignment pressing block.
Optionally, the power supply device includes: a case body; the display screen is arranged on the surface of the box body and used for displaying voltage and current; the adjusting button is arranged on the box body; and the voltage output port is connected with the transmission line.
A lighting method, the lighting device applies the lighting method, and the lighting method comprises the following steps: providing a carrier and placing the carrier on a platform; providing a structure to be lightened, and placing the structure to be lightened on a carrier; providing an alignment pressing block, and adjusting the position of the alignment pressing block to limit the structure to be lightened by the alignment pressing block; providing a lighting device, and connecting the lighting device with a structure to be lighted; and adjusting the current limiting button of the lighting device to the maximum allowable current and lighting the structure to be lighted, thereby obtaining the lighting condition of the structure to be lighted.
The lighting method is to use the lighting device to light the structure to be lighted, but when the lighting condition of the structure to be lighted is obtained, the condition that the broken point of the structure to be lighted is observed by human eyes can be adopted. By adopting the lighting device to light, the lighting structure can be fixed without manual work, the bad point condition can be directly observed by human eyes, and the detection efficiency is also increased.
Optionally, in the process of providing the lighting device and connecting the lighting device with the structure to be lit, the method further includes: and adjusting the position of the lighting device to enable the lighting device to be connected with at least one test structure of the structure to be lighted.
Optionally, in the process of adjusting the current limiting button of the lighting device to the maximum allowable current and lighting the structure to be lit, obtaining the lighting condition of the structure to be lit further includes: an RGB picture conversion button on the lighting device is adjusted to switch to an R picture mode, and the structure to be lighted displays an R picture, so that the lighting condition of the structure to be lighted is obtained; adjusting an RGB picture conversion button to switch to a G picture mode, enabling a structure to be lightened to display a G picture, and obtaining the lightening condition of the structure to be lightened; adjusting an RGB picture conversion button to switch to a B picture mode, enabling a structure to be lightened to display a B picture, and obtaining the lightening condition of the structure to be lightened; and adjusting the RGB picture conversion button to switch to a white picture mode, enabling the structure to be lightened to display a white picture, and obtaining the lightening condition of the structure to be lightened.
A lighting method, the lighting device applies the lighting method, and the lighting method comprises the following steps: providing a lighting device, and installing the lighting device on the AOI equipment; and adjusting the current limiting button of the lighting device to the maximum allowable current and lighting the structure to be lighted, and acquiring the lighting condition of the structure to be lighted and recording the defect coordinates by the AOI equipment.
The lighting method is to use the lighting device to light the structure to be lighted, and is the case of the bad point obtained by adopting the AOI equipment. By adopting the lighting device to light, the lighting structure can be fixed without manual work, the bad point condition can be directly obtained by the AOI equipment, the detection efficiency is improved, and meanwhile, the coordinates of the bad point obtained by the AOI equipment are very accurate. After the AOI equipment obtains the dead pixel coordinates, the dead pixel coordinates are input into the maintenance equipment so as to accurately maintain the structure to be lighted, and the secondary repair rate is reduced.
Optionally, in providing the lighting device, the process of installing the lighting device on the AOI device 50 further includes: placing a carrier of the lighting device on the AOI device 50; providing a structure to be lightened, and placing the structure to be lightened on a carrier; adjusting the position of an alignment pressing block of the lighting device to limit the alignment pressing block to the structure to be lighted; installing a voltage input pressure head of the lighting device on the alignment pressure block and contacting with a test structure of the structure to be lighted; connecting a transmission line of the lighting device with a voltage input pressure head and a power supply device of the lighting device respectively; the power supply switch is turned on.
Optionally, when adjusting the current limiting button of the lighting device to the maximum allowable current and lighting the structure to be lighted, the process of obtaining the lighting condition of the structure to be lighted and recording the defect coordinates by the AOI device further includes: the RGB picture conversion button of the power supply device of the lighting device is adjusted to be switched to an R picture mode, the structure to be lighted displays an R picture, and the AOI equipment grabs coordinates of a region with inconsistent colors of the R picture and a flickering region; an R voltage adjusting button of the power supply device is adjusted to control the brightness of a structure to be lightened, and an AOI device grabs coordinates of an LED with abnormal dark brightness and a bad LED in an R picture; adjusting an RGB picture conversion button of a power supply device to switch to a G picture mode and enabling a structure to be lightened to display a G picture, and enabling AOI equipment to grasp coordinates of a region with inconsistent colors and a flickering region of the G picture; regulating a G voltage regulating button of a power supply device to control the brightness of a structure to be lightened, and grabbing coordinates of an LED with abnormal dark brightness and a bad LED in a G picture by an AOI device; adjusting an RGB picture conversion button of a power supply device to switch to a B picture mode and enabling a structure to be lightened to display a B picture, and enabling AOI equipment to grasp coordinates of a region with inconsistent colors of the B picture and a flickering region; b voltage adjusting buttons of the power supply device are adjusted to control the brightness of a structure to be lightened, and the AOI equipment grabs coordinates of an LED with abnormal dark brightness and a bad LED in a B picture; and adjusting an RGB picture conversion button of the power supply device to switch to a white picture mode and enabling the structure to be lightened to display a white picture, wherein the AOI equipment grabs coordinates of flicker, black stripes and abnormal area display generated when switching to the white picture.
Drawings
FIG. 1 is a schematic diagram of the cooperation relationship between a lighting device and an AOI device according to one embodiment of the present invention;
FIG. 2 is an exploded view of a lighting device according to one embodiment of the present invention;
FIG. 3 is a schematic diagram of the mating relationship of a carrier, a structure to be lit, and an AOI device according to one embodiment of the invention;
FIG. 4 is a schematic diagram of a carrier according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a structure to be lit according to one embodiment of the invention;
FIG. 6 is a schematic diagram of a contraposition block according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a voltage input ram in accordance with one embodiment of the invention;
fig. 8 is a schematic structural view of a power supply device according to an embodiment of the present invention;
fig. 9 is a flowchart of a lighting method in an embodiment according to the present invention;
fig. 10 is a flowchart of a lighting method in an embodiment according to the present invention;
FIG. 11 is a flow chart of a lighting method according to an embodiment of the present invention;
fig. 12 is a flowchart of a lighting method in an embodiment according to the present invention;
fig. 13 is a flowchart of a lighting method in an embodiment according to the present invention;
fig. 14 is a flowchart of a lighting method according to an embodiment of the present invention.
Reference numerals illustrate:
10-a carrier; 11-a limiting structure; 20-a structure to be lightened; 21-test structure; 30-aligning pressing blocks; 31-limit grooves; 32-mounting notch; 40-lighting means; 41-inserting needles; 42-power supply means; 421-case; 422-display screen; 423-an adjustment button; 4231-a switch button; 4232-R voltage regulator knob; 4233-G voltage regulator knob; 4234-B voltage regulator knob; 4235-a restrictor knob; 4236-RGB picture conversion buttons; 424-voltage output port; 4241-R voltage output port; 4242-G voltage output port; 4243-B voltage output port; 4244-negative electrode port; 43-transmission line; 44-voltage input ram; 441-a transmission body; 442-a support structure; a 50-AOI device; 60-magnetic piece.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
As described in the background section, the structure to be lit in the prior art has problems of low detection efficiency and inaccurate inspection position.
Based on this, the present application intends to provide a solution to the above technical problem, the details of which will be explained in the following embodiments.
As shown in fig. 1 to 8, the lighting device is detachably mounted on the placement platform, the lighting device is used for lighting the structure to be lighted 20, the lighting device comprises a carrier 10, an alignment pressing block 30 and a lighting device 40, the carrier 10 is detachably connected with the placement platform, and the structure to be lighted 20 is detachably arranged on the carrier 10; the alignment pressing block 30 is arranged on one side of the carrier 10 and is respectively abutted against the side walls of the carrier 10 and the structure 20 to be lightened, and the carrier 10 and the alignment pressing block 30 are respectively limited on the structure 20 to be lightened; the lighting device 40 is electrically connected with the structure to be lit 20 to light the structure to be lit 20.
The carrier 10 can be detachably connected with the placement platform, so that the carrier 10 can be fixed on the placement platform, and the position of the carrier 10 on the placement platform is ensured not to be changed, so that the working stability of the carrier 10 is ensured. The alignment pressing block 30 is matched with the carrier 10, so that the structure 20 to be lightened can be limited on the carrier 10, the positions of the carrier 10 and the structure 20 to be lightened are relatively fixed, the position of the structure 20 to be lightened on a placing platform is fixed, and the coordinates of bad points on the structure 20 to be lightened are recorded conveniently. The lighting device 40 is configured to light the structure to be lighted 20 so as to facilitate detection of the structure to be lighted 20. The lighting device can fix the position of the structure 20 to be lighted and can also light the structure 20 to be lighted at the same time so as to realize rapid detection of the structure 20 to be lighted.
It should be noted that the structure to be lighted 20 includes an LED display panel after completing the lighting and die bonding.
As shown in fig. 1 to 4, the side wall of the structure to be lightened 20 abutting against the alignment pressing block 30 is a first side wall, the carrier 10 has a limiting structure 11, and the limiting structure 11 abuts against the side wall of the structure to be lightened 20 except for the first side wall. The alignment pressing block 30 is located at one side of the structure 20 to be lightened, and is abutted against the structure 20 to be lightened. The carrier 10 is provided with the limiting structure 11, the limiting structure 11 and the alignment pressing block 30 enclose a limiting area, the first side wall is in butt joint with the alignment pressing block 30, and the other side walls of the structure 20 to be lightened are in butt joint with the limiting structure 11, so that the structure 20 to be lightened can be limited in the limiting area, when the structure 20 to be lightened is subjected to subsequent operation, the structure 20 to be lightened cannot be misplaced, and the accuracy of the position of the structure 20 to be lightened in detection is ensured. The structure 20 to be lightened is fixed by adopting a mechanical structure, and the structure 20 to be lightened is not required to be manually fixed. In addition, by adopting the mechanical structure to fix the structure to be lit 20, the structure to be lit 20 can be fixed on the AOI device 50, and the AOI device 50 obtains the coordinates of the dead pixels of the structure to be lit 20, thereby increasing the detection efficiency of the structure to be lit 20.
Note that, the AOI (Automated Optical Inspection) apparatus is an automatic optical detection apparatus.
In the embodiment shown in fig. 4, the limiting structures 11 are disposed at two adjacent sides of the carrier 10, so that the limiting structures 11 are abutted against two sides of the structure to be lighted 20, and the first side wall is abutted against the alignment pressing block 30, so that one side of the structure to be lighted 20 is not abutted against anything, so that the lighting device can adapt to the structures to be lighted 20 with different sizes, and the adaptability of the electric lamp device is increased.
In an embodiment not shown, the limiting structure 11 is detachably connected to the carrier 10, and the limiting structure 11 abuts against all the sidewalls of the structure to be lightened 20 except the first sidewall, so as to prevent the structure to be lightened 20 from shaking. Through setting up into detachable form between limit structure 11 and the carrier 10, can make limit structure 11 set up on any position on the carrier 10 to make limit structure 11 and counterpoint briquetting 30 enclose into the spacing region of equidimension, make the structure 20 of waiting to light that lighting device can adapt to equidimension like this, with the suitability that has increased the electric lamp device.
As shown in fig. 3, 5 and 7, at least a part of the lighting device 40 is detachably connected with the alignment jig 30, the lighting device 40 has a needle insertion 41, a side of the structure to be lit 20 near the alignment jig 30 has a test structure 21, and the needle insertion 41 contacts with the test structure 21 to light the structure to be lit 20. The lighting device 40 is detachably connected with the counterpoint briquetting 30, so that the lighting device 40 and the counterpoint briquetting 30 can be separated, and then the lighting device 40 and the counterpoint briquetting 30 can be used independently, thereby realizing multiple purposes. The needle insertion 41 is in contact with the test structure 21 so that the current of the lighting device 40 can be transferred to the structure 20 to be lit to light the LED chips on the structure 20 to be lit, so that the thickness AOI device 50 obtains the coordinates of the dead spots on the structure 20 to be lit.
Specifically, the alignment pressing block 30 is magnetically connected with the placement platform. This arrangement facilitates removal of the alignment block 30 from the placement platform to facilitate testing of different structures 20 to be lit. Meanwhile, the magnetic connection can enable the alignment pressing block 30 and the placement platform to be quickly installed together. Specifically, the alignment pressing block 30 is magnetically connected with the placement platform through the magnetic member 60.
As shown in fig. 6, the surface of the alignment pressing block 30 connected with the placement platform is provided with a limit groove 31, the limit groove 31 is communicated with the side wall of the alignment pressing block 30, and the structure 20 to be lightened stretches into the limit groove 31 to be abutted with the groove wall of the limit groove 31. The setting of spacing groove 31 can treat and lighten structure 20 and form spacingly, avoids waiting to lighten structure 20 to produce the phenomenon that rocks in the in-process of test, guarantees the accuracy of detection to treat accurately and lighten structure 20 and maintain, reduced the secondary and reprocessed rate. The spacing groove 31 communicates with a lateral wall of counterpoint briquetting for wait to light structure 20 and can stretch into in the spacing groove 31, the cell wall of spacing groove 31 all with wait to light structure 20 and carry out spacingly, make wait to light structure 20 and all can not take place to remove in three direction department, guaranteed the stationarity of waiting to light structure 20 to place.
As shown in fig. 6, the alignment pressing block 30 has a mounting notch 32, the mounting notch 32 is located in the limiting groove 31, at least a portion of the structure to be lit 20 is exposed at the mounting notch 32, and at least a portion of the lighting device 40 is mounted at the mounting notch 32 to be electrically connected with the structure to be lit 20. The mounting notch 32 provides a mounting location for the lighting device 40 such that the needle 41 of the lighting device 40 is electrically connected to the structure 20 to be lit. By arranging the mounting notch 32 on the alignment pressing block 30, the position of the lighting device 40 is fixed, and the lighting device 40 does not need to be manually fixed, so that the detection efficiency of the structure 20 to be lighted is greatly improved.
As shown in fig. 1 and 2, the lighting device 40 includes a power supply device 42, a transmission line 43, and a voltage input ram 44, one end of the transmission line 43 being connected to the power supply device 42; the other end of the transmission line 43 is connected to a voltage input ram 44, and the voltage input ram 44 is mounted at the mounting notch 32 and is electrically connected to the structure 20 to be lit. The power supply device 42 can provide power for the structure 20 to be lighted to realize lighting of the structure 20 to be lighted. Both ends of the transmission line 43 are connected to the power supply device 42 and the voltage input ram 44, respectively, so that the power supply device 42 supplies power to the voltage input ram 44. And the voltage input pressure head 44 extends into the mounting notch 32 to contact the structure 20 to be lighted, so as to transmit current to the structure 20 to be lighted, thereby lighting the structure 20 to be lighted.
As shown in fig. 1 and 2, the voltage input ram 44 and the mounting notch 32 are correspondingly positioned such that the voltage input ram 44 can extend through the mounting notch 32 to connect with the test structure 21.
As shown in fig. 1 and 2, the voltage input pressure head 44 and the mounting notch 32 are plural, and the plural voltage input pressure heads 44 and the mounting notches 32 are disposed in one-to-one correspondence. The number of the voltage input pressure heads 44 and the mounting notches 32 are in one-to-one correspondence with the number of the test structures 21, and each test structure 21 is communicated with a part of the LED chips on the structure 20 to be lighted, so that the part of the LED chips can be lighted after the voltage input pressure heads 44 are communicated with the test structures 21. The number of the voltage input pressure heads 44 is identical to that of the test structures 21, so that the voltage input pressure heads 44 are in one-to-one correspondence with the test structures 21, and all the LED chips on the structure 20 to be lighted can be lighted, or only part of the LED chips can be lighted.
Specifically, the voltage input ram 44 is magnetically connected to the alignment block 30. The voltage input pressure head 44 is magnetically connected with the alignment pressure block 30, so that the voltage input pressure head 44 and the alignment pressure block 30 can be conveniently disassembled and assembled, the voltage input pressure head 44 can be separated from the alignment pressure block 30 to work independently, and the diversity of the work of the lighting device 40 is increased.
Of course, the voltage input pressure head 44 and the alignment pressure block 30 may be connected by bolts, so that only the voltage input pressure head 44 and the alignment pressure block 30 can be connected together for cooperation, and the voltage input pressure head 44 and the alignment pressure block 30 can be separated for independent operation.
As shown in fig. 7, the voltage input ram 44 includes a transmission body 441 and a supporting structure 442, the transmission body 441 is connected to the transmission line 43, and the transmission body 441 extends into the mounting notch 32 to be electrically connected to the structure 20 to be lit; the supporting structure 442 extends from opposite sides of the transmission body 441, and the supporting structure 442 is detachably connected to the alignment block 30. The transmission body 441 has a needle 41, and the supporting structures 442 are supported on two sides of the mounting notch 32, so as to prevent the voltage input pressure head 44 from pressing the structure 20 to be lightened, and reduce the damage to the structure 20 to be lightened during the testing stage.
Specifically, the supporting structure 442 is magnetically connected to the alignment pressing block 30, and the supporting structure 442 is connected to the alignment pressing block 30 through the magnetic member 60, so that the supporting structure 442 is conveniently and rapidly mounted on the alignment pressing block 30.
Of course, screw connection may be adopted between the supporting structure 442 and the alignment block 30, so as to ensure that the supporting structure 442 and the alignment block 30 can be connected together to light the structure 20 to be lighted, and also the supporting structure 442 and the alignment block 30 can be detached for separate operation.
As shown in fig. 8, the power supply device 42 includes a case 421, a display screen 422, an adjustment button 423, and a voltage output port 424, the display screen 422 being disposed on a surface of the case 421, the display screen 422 being for displaying voltage and current; the adjusting button 423 is provided on the case 421; the voltage output port 424 is connected to the transmission line 43. The adjusting button 423 can adjust the lighting environment of the structure to be lighted 20, and can adjust the limit current of the structure to be lighted 20, and adjust the test voltage and the test current. Meanwhile, the display screen can display the test voltage, the test current and the limit current.
As shown in fig. 8, the plurality of adjustment buttons 423 are provided, the plurality of adjustment buttons 423 are disposed on the box 421 at intervals, and at least two adjustment buttons 423 of the plurality of adjustment buttons 423 have different functions.
Specifically, the number of the voltage output ports 424 and the transmission lines 43 is plural, and the plurality of the voltage output ports 424 are connected to the plurality of the transmission lines 43.
Specifically, the adjustment buttons 423 include a switch button 4231, an R voltage adjustment button 4232, a G voltage adjustment button 4233, a B voltage adjustment button 4234, a current limit button 4235, and an rgb screen conversion button 4236. The switch button 4231 can turn on the power supply 42 to energize the power supply 42. The current limiting button 4235 is capable of adjusting the maximum current achieved during testing to avoid excessive current from burning the structure 20 to be lit. Since different structures 20 to be lit can withstand different currents, the limiting current during testing needs to be adjusted by adjusting the current limiting button 4235. The RGB screen conversion button 4236 can adjust the power supply device 42 to the R screen, G screen, B screen, and white screen to realize the lighting of the structure 20 in different lighting environments. The R voltage adjusting knob 4232 adjusts the voltage condition in the case of R picture. And the G voltage adjusting knob 4233 adjusts the voltage condition in the case of the G picture; the B voltage adjusting knob 4234 adjusts the voltage condition in the case of B picture.
The R-frame is a red frame displayed on the structure to be lit 20. And the G frame refers to the structure to be lit 20 being displayed as a green frame, and the B frame refers to the structure to be lit 20 being displayed as a blue frame. And white pictures refer to white pictures displayed on the structure 20 to be lit.
As shown in fig. 8, the voltage output ports 424 include an R voltage output port 4241, a G voltage output port 4242, a B voltage output port 4243, and a negative electrode port 4244. By setting the voltage output ports 424 differently, the magnitude of the voltage under different test environments can be controlled.
As shown in fig. 12, the lighting device applies a lighting method including: step S1201: providing a carrier 10 and placing the carrier 10 on a platform; step S1202: providing a structure to be lightened 20, and placing the structure to be lightened 20 on a carrier 10; step S1203: providing an alignment pressing block 30, and adjusting the position of the alignment pressing block 30 to limit the alignment pressing block 30 to the structure 20 to be lightened; step S1204: providing a lighting device 40, and connecting the lighting device 40 with the structure 20 to be lighted; step S1205: the current limiting button 4235 of the lighting device 40 is adjusted to the maximum allowable current and lights the structure to be lighted 20, and the lighting condition of the structure to be lighted 20 is obtained. The lighting method in the present embodiment is to light the structure to be lit with the lighting device described above, but the case of observing the bad spot of the structure to be lit 20 by the human eye may be adopted when the lighting condition of the structure to be lit 20 is obtained. The lighting device 40 is used for lighting, the structure 20 to be lit does not need to be manually fixed, the bad spot condition can be directly observed by human eyes, and the detection efficiency is also increased.
Specifically, in the process of providing the lighting device 40 and connecting the lighting device 40 with the structure 20 to be lit, it further includes: the position of the lighting device 40 is adjusted so that the lighting device 40 is connected to the two test structures 21 of the structure 20 to be lit. The lighting device 40 may be connected to one of the test structures 21 to light a portion of the LED chips and detect the portion of the LED chips. In this case, the method is generally applied to secondary detection after repairing the dead pixel, and energy can be saved. Of course, the lighting device 40 may also light all the LED chips to realize detection of all the LED chips.
In the specific embodiment shown in fig. 13, when the current limiting button 4235 of the lighting device 40 is adjusted to the maximum allowable current and the structure 20 to be lit is lit, the process of obtaining the lighting condition of the structure 20 to be lit further includes: step S1301: the RGB picture conversion button 4236 on the adjusting lighting device 40 is switched to the R picture mode and causes the structure to be lit 20 to display the R picture, and obtains the lighting condition of the structure to be lit 20; step S1302: adjusting the RGB picture conversion button 4236 to switch to the G picture mode and causing the structure to be lighted 20 to display a G picture, obtaining the lighting condition of the structure to be lighted 20; step S1303: adjusting the RGB picture conversion button 4236 to switch to the B picture mode and causing the structure to be lighted 20 to display the B picture, and obtaining the lighting condition of the structure to be lighted 20; step S1304: adjusting the RGB screen conversion button 4236 switches to the white screen mode and causes the structure to be lit 20 to display a white screen, and obtains the lighting condition of the structure to be lit 20. This enables a person to observe the lighting condition of the structure to be lit 20 in the environments of the G-picture, the R-picture, the B-picture, and the white picture to record the coordinates of the dead pixels or the areas of the dead pixels of the structure to be lit 20.
It should be noted that, the coordinates of the dead pixel obtained by such artificial observation and detection are not accurate.
In the specific embodiment shown in fig. 9, the lighting device described above applies a lighting method, and the lighting method includes: step S901: providing a lighting device, and mounting the lighting device on the AOI device 50; step S902: the current limiting button 4235 of the lighting device is adjusted to the maximum allowable current and lights the structure to be lighted 20, and the aoi device 50 acquires the lighting condition of the structure to be lighted 20 and records the defect coordinates. The lighting method in the present embodiment is a case in which the lighting device described above is used to light the structure to be lit, and is a dead spot acquired by the AOI device 50. By adopting the lighting device 40 to light, the structure 20 to be lit can be directly obtained by the AOI equipment 50 without manually fixing the structure, so that the detection efficiency is improved, and meanwhile, the coordinates of the dead pixels obtained by the AOI equipment 50 are very accurate. After the AOI device 50 acquires the dead pixel coordinates, the dead pixel coordinates are input into the maintenance device to accurately maintain the structure 20 to be lighted, thereby reducing the secondary repair rate.
In the specific embodiment shown in fig. 10, in providing the lighting device, the process of installing the lighting device on the AOI device 50 further includes: step S1001: placing the carrier 10 of the lighting device on the AOI device 50; step S1002: providing a structure to be lightened 20, and placing the structure to be lightened 20 on a carrier 10; step S1003: adjusting the position of an alignment pressing block 30 of the lighting device to limit the structure 20 to be lighted by the alignment pressing block 30; step S1004: a voltage input pressure head 44 of the lighting device is arranged on the alignment pressure block 30 and is contacted with the test structure 21 of the structure 20 to be lighted; step S1005: a transmission line 43 of the lighting device 40 is connected with a voltage input ram 44 and a power supply device 42 of the lighting device 40, respectively; step S1006: the power supply 42 is turned on. The arrangement is such that the structure 20 to be lit can be fixed to the AOI device 50, so that the position of the structure 20 to be lit relative to the AOI device 50 is fixed, and the coordinates of the structure 20 to be lit, obtained by the AOI device 50, are unchanged each time the structure 20 to be lit is tested, so that the AOI device 50 can obtain accurate dead pixel coordinates when the structure 20 to be lit, so that the structure can be maintained accurately.
In the specific embodiment shown in fig. 11, in the process of adjusting the current limiting button 4235 of the lighting device to the maximum allowable current and lighting the structure to be lit 20, the aoi device 50 obtains the lighting condition of the structure to be lit 20 and records the defect coordinates, further includes: step S1101: the RGB picture conversion button 4236 of the power supply device 42 of the adjusting lighting device 40 is switched to the R picture mode and causes the structure to be lit 20 to display the R picture, and the AOI device 50 grabs coordinates of the region where the colors of the R picture are inconsistent and the region where the colors of the AOI device flash; step S1102: the R voltage adjusting knob 4232 of the adjusting power supply device 42 controls the brightness of the structure 20 to be lighted, and the AOI device 50 grasps the coordinates of the LEDs and bad LEDs with abnormal dark brightness in the R picture; step S1103: adjusting the RGB picture conversion button 4236 of the power supply device 42 to switch to the G picture mode and causing the structure to be lit 20 to display the G picture, the AOI device 50 grabs coordinates of the area where the colors of the G picture are inconsistent and the blinking area; step S1104: the G voltage adjusting knob 4233 of the adjusting power supply device 42 controls the brightness of the structure 20 to be lighted, and the AOI device 50 grabs the coordinates of the LEDs and bad LEDs with abnormal dark brightness in the G picture; step S1105: adjusting the RGB picture conversion button 4236 of the power supply device 42 to switch to the B-picture mode and causing the structure to be lit 20 to display the B-picture, the AOI device 50 grabs coordinates of the area where the colors of the B-picture are inconsistent and the blinking area; step S1106: the B voltage adjusting knob 4234 of the adjusting power supply device 42 controls the brightness of the structure 20 to be lighted, and the AOI device 50 grabs the coordinates of the LEDs and bad LEDs with abnormal dark brightness in the B picture; step S1107: the RGB screen conversion button 4236 of the power supply device 42 is adjusted to switch to the white screen mode and causes the structure to be lit 20 to display a white screen, and the AOI device 50 grabs coordinates of flicker, black streaks, and abnormal area display generated when switching to the white screen. The coordinates of the areas with inconsistent colors and the areas with flickering in the environments of the R picture, the G picture, the B picture and the white picture are set, and the coordinates of the LED with abnormal dark brightness and the coordinates of the bad LED are obtained by adjusting the voltage in different environments, so that the AOI equipment 50 is adopted to obtain the more accurate coordinates of the bad point, and the testing efficiency is greatly increased.
In the specific embodiment shown in fig. 14, the lighting device applies a lighting method, and the lighting method includes: step S1401: providing a carrier 10 and placing the carrier 10 on a platform; step S1402: providing a structure 20 to be lightened, placing the structure 20 to be lightened on a carrier 10, and adjusting the position of a lighting device 40 to connect the lighting device 40 with one test structure 21 of the structure 20 to be lightened; step S1403: providing an alignment pressing block 30, and adjusting the position of the alignment pressing block 30 to limit the alignment pressing block 30 to the structure 20 to be lightened; step S1404: providing a lighting device 40, and connecting the lighting device 40 with the structure 20 to be lighted; step S1405: the current limiting button 4235 of the lighting device 40 is adjusted to the maximum allowable current and lights the structure to be lighted 20, and the lighting condition of the structure to be lighted 20 is obtained. The lighting method in the present embodiment is to light the structure to be lit with the lighting device described above, but the case of observing the bad spot of the structure to be lit 20 by the human eye may be adopted when the lighting condition of the structure to be lit 20 is obtained. In addition, the lighting method in the present embodiment lights only the display area corresponding to one test structure 21 on the structure to be lit, and the display area corresponding to the other test structure 21 is not displayed. In the present embodiment, the lighting device 40 may be used alone.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (14)
1. A lighting device, characterized in that it is detachably mounted on a placement platform, said lighting device being for lighting a structure (20) to be lit, said lighting device comprising:
the carrier (10), the said carrier (10) is connected with said placement platform removably, the said structure (20) to be lightened is set up on said carrier (10) removably;
the alignment pressing block (30), the alignment pressing block (30) is arranged on one side of the carrier (10) and is respectively abutted against the side walls of the carrier (10) and the structure (20) to be lightened, and the carrier (10) and the alignment pressing block (30) are respectively used for limiting the structure (20) to be lightened; and
a lighting device (40), the lighting device (40) being electrically connected with the structure (20) to be lit to light the structure (20) to be lit;
at least a part of the lighting device (40) is detachably connected with the alignment pressing block (30), the lighting device (40) is provided with a needle (41), one side, close to the alignment pressing block (30), of the structure (20) to be lighted is provided with a test structure (21), and the needle (41) is contacted with the test structure (21) to light the structure (20) to be lighted.
2. The lighting device according to claim 1, wherein a side wall of the structure to be lighted (20) abutting against the alignment pressing block (30) is a first side wall, the carrier (10) has a limit structure (11), and the limit structure (11) abuts against a side wall of the structure to be lighted (20) except the first side wall.
3. The lighting device according to claim 1, wherein the surface of the alignment pressing block (30) connected with the placement platform is provided with a limit groove (31), the limit groove (31) is communicated with the side wall of the alignment pressing block (30), and the structure (20) to be lighted stretches into the limit groove (31) to be abutted with the groove wall of the limit groove (31).
4. A lighting device as claimed in claim 3, characterized in that the alignment block (30) has a mounting notch (32), the mounting notch (32) being located in the limit slot (31), at least a portion of the structure (20) to be lit being exposed at the mounting notch (32), at least a portion of the lighting device (40) being mounted at the mounting notch (32) to be electrically connected with the structure (20) to be lit.
5. The lighting device according to claim 4, wherein said lighting device (40) comprises:
a power supply device (42);
a transmission line (43), wherein one end of the transmission line (43) is connected with the power supply device (42);
the other end of the transmission line (43) is connected with the voltage input pressure head (44), and the voltage input pressure head (44) is installed at the installation notch (32) and is electrically connected with the structure (20) to be lightened.
6. The lighting device according to claim 5, wherein the voltage input ram (44) and the mounting notch (32) are provided in correspondence.
7. The lighting device according to claim 5, wherein said voltage input ram (44) comprises:
the transmission main body (441) is connected with the transmission line (43), and the transmission main body (441) stretches into the mounting notch (32) to be electrically connected with the structure (20) to be lightened;
-a support structure (442), the support structure (442) extending from opposite sides of the transfer body (441), the support structure (442) being detachably connected with the alignment press (30).
8. The lighting device according to claim 5, wherein said power supply means (42) comprises:
a case (421);
the display screen (422) is arranged on the surface of the box body (421), and the display screen (422) is used for displaying voltage and current;
an adjusting button (423), wherein the adjusting button (423) is arranged on the box body (421);
-a voltage output port (424), said voltage output port (424) being connected to said transmission line (43).
9. A lighting method, wherein the lighting device of any one of claims 1 to 8 applies the lighting method, the lighting method comprising:
providing a carrier (10) and placing the carrier (10) on a platform;
providing a structure (20) to be lit and placing the structure (20) to be lit on the carrier (10);
providing an alignment pressing block (30), and adjusting the position of the alignment pressing block (30) to enable the alignment pressing block (30) to limit the structure (20) to be lightened;
-providing a lighting device (40), connecting the lighting device (40) with the structure (20) to be lit;
and adjusting a current limiting button (4235) of the lighting device (40) to the maximum allowable current and lighting the structure (20) to be lighted, so as to obtain the lighting condition of the structure (20) to be lighted.
10. A lighting method according to claim 9, characterized in that in said providing a lighting device (40), said connecting the lighting device (40) to the structure (20) to be lit further comprises:
and adjusting the position of the lighting device (40) so that the lighting device (40) is connected with at least one test structure (21) of the structure (20) to be lighted.
11. The lighting method according to claim 9, wherein, in the process of adjusting the current limiting button (4235) of the lighting device (40) to the maximum allowable current and lighting the structure (20) to be lit, the process of obtaining the lighting condition of the structure (20) to be lit further comprises:
adjusting an RGB picture conversion button (4236) on the lighting device (40) to switch to an R picture mode, enabling the structure (20) to be lighted to display an R picture, and obtaining the lighting condition of the structure (20) to be lighted;
adjusting the RGB picture conversion button (4236) to switch to a G picture mode and enabling the structure to be lightened (20) to display a G picture, and obtaining the lightening condition of the structure to be lightened (20);
adjusting the RGB picture conversion button (4236) to switch to a B picture mode and enabling the structure to be lightened (20) to display a B picture, and obtaining the lightening condition of the structure to be lightened (20);
and adjusting the RGB picture conversion button (4236) to switch to a white picture mode, enabling the structure (20) to be lightened to display a white picture, and obtaining the lightening condition of the structure (20) to be lightened.
12. A lighting method, wherein the lighting device of any one of claims 1 to 8 applies the lighting method, the lighting method comprising:
providing the lighting device, and mounting the lighting device on an AOI device (50);
adjusting a current limiting button (4235) of the lighting device to a maximum allowable current and lighting the structure (20) to be lighted, and acquiring the lighting condition of the structure (20) to be lighted by the AOI equipment (50) and recording defect coordinates.
13. A lighting method as defined in claim 12, wherein during said providing said lighting device, mounting said lighting device on an AOI device (50) further comprises:
-placing a carrier (10) of the lighting device on the AOI device (50);
providing a structure (20) to be lit and placing the structure (20) to be lit on the carrier (10);
adjusting the position of an alignment pressing block (30) of the lighting device to enable the alignment pressing block (30) to limit the structure (20) to be lighted;
installing a voltage input pressure head (44) of the lighting device on the alignment pressing block (30) and contacting with a test structure (21) of the structure (20) to be lighted;
connecting a transmission line (43) of the lighting device (40) with the voltage input pressure head (44) and a power supply device (42) of the lighting device (40), respectively;
opening a switch of the power supply device (42).
14. The lighting method according to claim 12, wherein, in the process of adjusting the current limiting button (4235) of the lighting device to a maximum allowable current and lighting the structure (20) to be lit, the AOI device (50) acquires the lighting condition of the structure (20) to be lit and records the defect coordinates, further comprises:
an RGB picture conversion button (4236) of a power supply device (42) of the lighting device (40) is adjusted to be switched to an R picture mode, the structure (20) to be lighted is enabled to display an R picture, and the AOI equipment (50) captures coordinates of a region with inconsistent colors and a flickering region of the R picture;
an R voltage adjusting button (4232) of the power supply device (42) is adjusted to control the brightness of the structure (20) to be lightened, and the AOI equipment (50) grabs the coordinates of the LED with abnormal dark brightness and the bad LED in the R picture;
adjusting an RGB picture conversion button (4236) of the power supply device (42) to switch to a G picture mode and enabling the structure (20) to be lightened to display a G picture, wherein the AOI equipment (50) captures coordinates of a region with inconsistent colors and a flickering region of the G picture;
a G voltage adjusting button (4233) of the power supply device (42) is adjusted to control the brightness of the structure (20) to be lightened, and the AOI equipment (50) grabs the coordinates of the LED with abnormal dark brightness and the bad LED in the G picture;
adjusting an RGB picture conversion button (4236) of the power supply device (42) to switch to a B picture mode and enabling the structure (20) to be lightened to display a B picture, wherein the AOI equipment (50) captures coordinates of a region with inconsistent colors and a flickering region of the B picture;
a B voltage adjusting button (4234) of the power supply device (42) is adjusted to control the brightness of the structure (20) to be lightened, and the AOI equipment (50) grabs the coordinates of the LED with abnormal dark brightness and the bad LED in the B picture;
and adjusting an RGB picture conversion button (4236) of the power supply device (42) to switch to a white picture mode and enabling the structure (20) to be lightened to display a white picture, wherein the AOI equipment (50) captures coordinates of flicker, black stripes and abnormal area display generated when the structure is switched to the white picture.
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