CN111006852A - A backlight module for TFT/OLED detection - Google Patents
A backlight module for TFT/OLED detection Download PDFInfo
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- CN111006852A CN111006852A CN201911294443.5A CN201911294443A CN111006852A CN 111006852 A CN111006852 A CN 111006852A CN 201911294443 A CN201911294443 A CN 201911294443A CN 111006852 A CN111006852 A CN 111006852A
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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
- G01M11/02—Testing optical properties
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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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Abstract
The invention relates to the field of TFT/OLED display panel detection, in particular to a backlight source module and a backlight source module control system, and the technical scheme is as follows: and designing a higher-precision platform, installing the backlight module on the platform, and setting a backlight module control system. According to the backlight source module and the backlight source module control system, the height of the backlight source module is not too high, the requirement that the synchronous beam needs to be arranged lower can be met, the size structure in the backlight source module is reasonably arranged, and the backlight source module can emit uniform and stable light with enough brightness while the requirement that the height is lower than 36mm is met; backlight module control system can realize better control to the backlight module, realizes lighting respectively of each light board, realizes the luminance of every light board and adjusts alone to entity button and computer can both realize the regulation to the light board.
Description
Technical Field
The invention relates to the field of TFT/OLED display panel detection, in particular to a backlight module for TFT/OLED detection.
Background
Tft (thin Film transistor) refers to a thin Film transistor, that is, each liquid crystal pixel is driven by a thin Film transistor integrated behind the pixel, so that screen information can be displayed at high speed, high brightness and high contrast. Each pixel point of the TFT is controlled by the TFT integrated on the TFT, and is an active pixel point. Therefore, not only the speed can be greatly improved, but also the contrast and the brightness are greatly improved, and simultaneously the resolution ratio also reaches a high level.
Oled (organic Light Emitting display), i.e. organic Light Emitting display, belongs to a new rising category on mobile phone LCD. The OLED display technology is different from the conventional LCD display mode in that a backlight is not required, and a very thin organic material coating and a glass substrate are used, and when a current flows, the organic material emits light. Moreover, the OLED display screen can be made lighter and thinner, the visual angle is larger, and the electric energy can be obviously saved.
After the TFT/OLED display panel is produced, backlight detection is needed, the backlight source module is used for lighting the TFT/OLED display panel in a backlight mode, and then whether the TFT/OLED display panel can be lighted or not is observed through naked eyes, so that whether the TFT/OLED display panel is bad or not is judged. However, in the prior art, when the TFT/OLED display panel is subjected to backlight detection, detection is performed by using small-sized detection equipment, and it is not possible to detect a plurality of TFT/OLED display panels at one time, or even detect a TFT/OLED display panel with a large size.
Disclosure of Invention
In view of the disadvantages of the prior art, an object of the present invention is to provide a backlight module capable of providing backlight for an FTF/OLED to perform pixel point detection on the FTF/OLED.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a backlight module, includes the board of lighting a lamp, all the board and is used for installing the aluminium base board on testing platform, the board of lighting a lamp is laid on the aluminium base board, it sets up in the board of lighting a lamp top to all the board, the board of lighting a lamp can produce the light that is used for lighting FTF OLED.
By adopting the technical scheme, the aluminum substrate meets RoHs requirements, can better dissipate heat, prolongs the service life, and has higher power density and good reliability; the method has the advantages of reducing the assembly of a radiator and other hardware (including thermal interface materials), reducing the volume of a product, reducing the hardware and assembly cost, optimally combining a power circuit and a control circuit and improving the mechanical durability. The light board produces light and lights FTF OLED, and the board of evening light can make these light disperse uniformly, makes light can not locally cross bright or local dark, and the backlight module will wait to detect FTF OLED and light the back, can carry out the pixel point after lightening to FTF OLED and detect.
The invention is further configured to: the aluminum base plate is characterized by further comprising a limiting block, wherein the limiting block is used for limiting the positions of the aluminum base plate and the light homogenizing plate.
Through adopting above-mentioned technical scheme, the setting of stopper can be so that aluminium base board, equal worn-out fur, light worn-out fur install better.
The invention is further configured to: the light board is provided with 12, and 12 light boards are laid on the aluminum substrate according to a 3X4 structure.
Through adopting above-mentioned technical scheme, 12 light boards can provide the light all around to the ground.
The invention is further configured to: the light plate is provided with a plurality of crystal columns for supporting the light homogenizing plate.
By adopting the technical scheme, the crystal column can better support the light-equalizing plate.
Another object of the present invention is to provide a control system for a backlight module, which can better control the backlight module.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a backlight module control system, includes every the equal electric connection of light board has independent power and independent programmable controller, 12 programmable controller electric connection has a total controller, total controller electric connection has entity button and computer, through the entity button or through the computer can realize 12 the control of light board.
Through adopting above-mentioned technical scheme, through entity button or computer, can give total controller input signal, then total controller control transmits the programmable controller after with signal processing, then programmable controller controls light board, and independent power can supply power for every light board and every programmable controller alone, the different detection demands of reply.
The invention is further configured to: a light control circuit is arranged in the master controller and comprises a control chip and a single chip microcomputer connected with the control chip, the type of the control chip is ADM2587E, and the type of the single chip microcomputer is SSOP-28.
By adopting the technical scheme, the control chip with the model of ADM2587E and the single chip microcomputer with the model of SSOP-28 can well realize the control of the light boards and independently control each light board.
The invention is further configured to: and a lamp panel control system is arranged in the programmable digital control and comprises a light source brightness adjusting unit and a starting unit for respectively controlling each light panel to be lightened.
Through adopting above-mentioned technical scheme, the brightness control unit can adjust the light of light worn-out fur, and the start unit can control opening and close of light worn-out fur.
The invention is further configured to: the light source brightness adjusting unit is connected with the single chip microcomputer through a coupling node, the starting unit is connected with the single chip microcomputer through a coupling node, the entity button and the computer can adjust the brightness of the light plate through the brightness adjusting unit, and the entity button and the computer can adjust the brightness of the light plate through the starting unit.
By adopting the technical scheme, the solid button and the computer can both realize the on-off control of the light plate, and the solid button and the computer can both realize the brightness adjustment of the light plate.
The second objective of the present invention is to provide a large-sized TFT/OLED display panel inspection platform capable of performing a plurality of defect inspections on TFTs/OLEDs.
The technical purpose of the invention is realized by the following technical scheme: the backlight module of any one of claims 1-5, further comprising a base, a control display module, a marble substrate, a detection platform, an X-direction motion module, a Y-direction motion module, a Z-direction motion module, and a detection module;
the base is placed on the ground, the marble substrate is arranged on the base, the detection platform is arranged above the marble substrate and used for placing a large-size TFT/OLED display panel to be detected, the backlight source module is arranged between the marble substrate and the detection platform and used for providing backlight for the TFT/OLED, the detection module is arranged above the detection platform and used for detecting defects on the large-size TFT/OLED display panel;
the X-direction movement module is used for enabling the detection module to move above the detection platform along the X direction;
the Y-direction movement module is used for enabling the detection module to move above the detection platform along the Y direction;
the Z-direction movement module is used for enabling the detection module to move above the detection platform along the Z direction;
the Y-direction movement module comprises a portal frame, Y-direction linear motors, Y-direction sliding rails and synchronous beams, the number of the linear motors is two, the Y-direction linear motors comprise Y-direction magnetic tracks and Y-direction rotors, the two Y-direction magnetic tracks are arranged along the Y-axis direction, the two Y-direction magnetic tracks are respectively arranged on two sides of the marble substrate, the synchronous beams are arranged along the X-axis direction and are fixedly connected with the two Y-direction stators, the portal frame comprises a portal frame cross beam and two stand columns, the portal frame cross beam is fixedly arranged at the top end positions of the two stand columns, the two stand columns are respectively arranged at two end parts of the synchronous beams, the Y-direction sliding rails are four, the four Y-direction sliding rails are respectively arranged on two sides of the two Y-direction magnetic tracks, and the bottom of the synchronous beams is provided with Y-direction sliding blocks connected with the Y-direction;
be provided with the test bench on the base, the marble base plate is not equipped with the both sides of magnetic track and is provided with the supporting shoe, the supporting shoe is used for supporting the test bench, testing platform sets up on the test bench.
Through adopting above-mentioned technical scheme, the detection module is used for microcosmic bad that detects TFT OLED, and the backlight module can carry out the pixel point inspection after lightening TFT OLED, and such testing platform can carry out multinomial inspection to FTF OLED. Adopt two linear electric motor to drive the portal frame and remove, can provide sufficient power for the motion of portal frame, and the efficiency is higher, the setting of synchronization beam, can increase the stability of portal frame motion on the one hand, on the other hand can increase the synchronism between two stands of portal frame, and the synchronization beam both ends of portal frame all are provided with two Y to the slide rail, compare both ends and all slide on single Y to the slide rail, have more stable effect, the great vibrations of longmen at the operation in-process of marble base plate quality.
The invention is further configured to: the X-direction movement module is arranged on a portal frame beam and comprises an X-direction linear motor, a mounting frame and an X-direction slide rail, wherein,
the side wall of the portal frame beam is provided with a groove, the X-direction linear motor comprises an X-direction rotor and X-direction magnetic tracks, the X-direction magnetic tracks are arranged along the X-axis direction, the X-direction magnetic tracks are arranged at the bottom of the groove, the X-direction rotor is fixedly connected with the mounting frame, the X-direction slide rails are arranged in two numbers, the two X-direction slide rails are respectively arranged on the upper surface and the lower surface of the portal frame beam, the mounting frame is provided with two X-direction slide blocks, and the two X-direction slide blocks are respectively connected with the two X-direction slide rails in a sliding manner;
z is in to the motion module setting on the mounting bracket, Z is including the mounting panel at least to the motion module, it sets up on the mounting panel to detect the module.
Through adopting above-mentioned technical scheme, such X is to the slide rail, and the motion process is more stable, detects the module and on the platform stable like this, moves more accurately, can carry out more accurate detection to TFT OLED.
The invention is further configured to: the Z-direction movement module comprises a coarse adjustment module and a fine adjustment module;
the coarse adjustment module comprises a servo motor, a screw rod, a sliding block, a fixed plate, two first Z-direction slide rails and two fixed blocks, wherein the two fixed blocks are arranged on an installation frame, the servo motor is fixedly arranged on one fixed block, the screw rod is vertically arranged and is rotatably connected between the two fixed blocks, an output shaft of the servo motor is fixedly connected with the screw rod, the sliding block is arranged between the two fixed blocks and is in threaded connection with the screw rod, the fixed plate is fixedly connected with the sliding block, the two first Z-direction slide rails are vertically arranged on the installation frame, a first Z-direction slide block is arranged on the fixed plate and is connected with the first Z-direction slide rails in a sliding manner;
the fine adjustment module comprises a fine adjustment motor, a manual fine adjustment knob, a rotating shaft, a gear, a rack, an installation part and two second Z-direction sliding rails, wherein the rack and the two second Z-direction sliding rails are vertically arranged on a fixed plate;
the mounting plate is arranged on the mounting part.
Through adopting above-mentioned technical scheme, Z to the second grade adjust make the platform focus more accurately, and adjust rapider, and the setting of manual focusing knob makes things convenient for the operation workman to carry out the school zero, also makes things convenient for the operation workman initiative to carry out the regulation to detecting the module height.
The invention is further configured to: the base includes supporting legs, base frame, base load beam, hydraulic support seat and worker shape load steel, base load beam includes a mouth type frame, a base crossbeam and three base longerons, the base crossbeam with the base longeron all sets up on the mouth type frame, the hydraulic support seat with worker shape load steel all sets up on the base longeron for provide the support for the marble base plate.
Through adopting above-mentioned technical scheme, such a structure can guarantee the stability of platform, is difficult to produce vibrations.
The invention is further configured to: the synchronous beam is provided with an auxiliary light assembly, the auxiliary light assembly comprises a belt pulley assembly, an auxiliary sliding rail, a fixing portion and an auxiliary light source, the auxiliary sliding rail is arranged on the synchronous beam along the X direction, an auxiliary sliding block is fixedly arranged on the fixing portion and connected with the auxiliary sliding rail in a sliding mode, the auxiliary light source is arranged on the fixing portion, and the belt pulley assembly is used for enabling the fixing portion to move along the auxiliary sliding rail.
Through adopting above-mentioned technical scheme, the reason that the installation assisted light subassembly was gone up to the synchronization roof beam is, and some detection module need use the effect that the assisted light improves the detection. The driving component enables the fixing part to move along the auxiliary sliding rail, so that the auxiliary light source moves on the auxiliary sliding rail, and the auxiliary light module can move along the X direction along with the detection module.
The invention is further configured to: the belt pulley assembly comprises a first linkage belt, a second linkage belt, a first fixed angle code, a second fixed angle code, a first belt pulley, a second belt pulley, a third belt pulley, a fourth belt pulley, a fifth belt pulley and a sixth belt pulley, wherein the first fixed angle code and the second fixed angle code are fixedly arranged on the left side and the right side of the mounting frame, one end of the first linkage belt is fixedly arranged on the first fixed angle code, the other end of the first linkage belt is fixedly arranged on the second fixed angle code, the first linkage belt sequentially bypasses the first belt pulley, the second belt pulley, the third belt pulley and the fourth belt pulley, the left end and the right end of the portal frame beam are respectively provided with a first mounting part and a second mounting part, the first mounting part is used for mounting the first belt pulley and the third belt pulley, the second mounting part is used for mounting the fourth belt pulley, and a side wall of the synchronous beam is fixedly provided with the third mounting part and the fourth mounting part, another lateral wall of synchronization beam is fixed and is provided with fifth installed part, the second belt pulley is installed on third installed part, the fifth belt pulley is installed on fourth installed part, the sixth belt pulley is installed on the fifth installed part, the second belt pulley with the coaxial fixed setting of fifth belt pulley, the cladding of second linkage belt sets up between fifth belt pulley and sixth belt pulley, fixed part fixed connection is at the upper segment of second linkage belt.
By adopting the technical scheme: when the mounting bracket removed, drive first linkage belt motion, first belt pulley, second belt pulley, third belt pulley, fourth belt pulley rotate in succession under the drive of first linkage belt, because second belt pulley and the coaxial fixed setting of fifth belt pulley, so the second belt pulley also can follow and rotate in the lump to drive the rotation of second linkage belt, and then drive the rotation in the lump of sixth belt pulley, finally realize driving the fixed part and move in the lump on supplementary slide rail.
The invention is further configured to: the width of light board is 390mm, length is 475mm, thickness is 2.3mm, the width of aluminium base board is 1180mm, length is 1900mm, thickness is 2mm, the width of the board of evening light is 1180mm, length is 1900mm, thickness is 2 mm.
By adopting the technical scheme: the aluminum substrate and the light board with the sizes can detect the TFT display panel with larger size, and can detect a plurality of TFT display panels.
The invention is further configured to: the vertical distance between the lower surface of the synchronizing beam and the upper surface of the marble substrate is 36-40mm, the distance between the lower surface of the aluminum substrate and the upper surface of the marble substrate is 8.8-9.2mm, and the vertical distance between the lower surface of the light homogenizing plate and the upper surface of the light plate is 20 mm.
By adopting the technical scheme: because the high stability ability of whole Y to the motion module of relation to of synchronization beam, so the synchronization beam can not set up too high, must be within 40mm, but need install backlight module on marble base plate surface, so the height of backlight module can not be too high, after advancing adjustment and experiment many times, it only is found when the size setting of light board is at wide 390mm, length 475mm, thickness 2.3mm, and the vertical distance of light board lower surface distance light board upper surface is 20mm, just can satisfy the demand in two aspects of light source homogeneity and intensity, when light board is too far away from light board, light intensity can weaken, can not satisfy the demand of lighting, when light board is too far away from light board, uneven phenomenon of luminance can appear.
In conclusion, the invention has the following beneficial effects:
firstly, the platform of the invention has high moving precision, can be provided with various detection modules, and has good detection effect;
secondly, the auxiliary optical assembly can move synchronously with the detection module, so that the detection accuracy of the detection module is improved;
thirdly, the backlight source module can be matched with the detection module together to complete detection of various performances of the TFT/OLED;
fourthly, the height of the backlight source module is not too high, the requirement that the synchronous beam needs to be set to be lower can be met, the size structure inside the backlight source module is reasonably arranged, and the backlight source module can emit light rays which are uniform, stable and sufficient in brightness while the requirement that the height is lower than 36mm is met;
fifthly, the backlight module control system can realize better control to the backlight module, realizes lighting respectively of each light board, realizes the luminance of every light board and adjusts alone to the regulation to the light board can both be realized to entity button and computer.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic structural view of a base in the present embodiment;
FIG. 3 is another structural diagram of the base of the present embodiment;
FIG. 4 is a schematic structural view of a base-mounted marble substrate in this embodiment;
FIG. 5 is a side view and an enlarged view of the backlight module in the present embodiment;
FIG. 6 is an exploded view of the backlight module of the present embodiment;
FIG. 7 is an enlarged view at B in FIG. 6;
fig. 8 is a schematic circuit configuration diagram of the chip microcomputer in the present embodiment;
FIG. 9 is a schematic diagram of a circuit structure of the control chip in the present embodiment;
FIG. 10 is a schematic diagram of the circuit structure of the LED and the nixie tube in the present embodiment;
FIG. 11 is a schematic diagram of a circuit structure of the control chip in the present embodiment;
FIG. 12 is a schematic structural diagram of the Y-direction motion module in the present embodiment;
FIG. 13 is another schematic view of the Y-motion module of the present embodiment;
FIG. 14 is an enlarged view at C of FIG. 13;
FIG. 15 is a schematic structural diagram of the detection platform in the present embodiment;
FIG. 16 is a schematic structural diagram of the X-direction motion module in the present embodiment;
FIG. 17 is another schematic structural diagram of the X-direction motion module in the present embodiment;
FIG. 18 is a schematic structural diagram of a Z-direction motion module in the present embodiment;
FIG. 19 is a schematic structural diagram of a Z-direction motion module in the present embodiment;
FIG. 20 is a schematic structural diagram of an auxiliary light assembly according to the present embodiment;
FIG. 21 is an enlarged view at D of FIG. 20;
FIG. 22 is an enlarged view at E in FIG. 20;
FIG. 23 is an enlarged view at F of FIG. 20;
FIG. 24 is an enlarged view at G of FIG. 20;
fig. 25 is a schematic view showing the movement of the pulley assembly in this embodiment.
In the figure: 1. a base; 1a, a base bearing beam; 1a1, mouth frame; 1a2, base rail; 1a21, first stringer; 1a22, second stringer; 1a23, third stringer; 1a3, base beam; 1b, a hydraulic support seat; 1c, I-shaped bearing steel; 1d, supporting legs; 1e, a base frame; 1e1, surround board; 1e11, string hole; 1f, a marble substrate; 2. a detection platform; 2a, a detection bench; 3. an X-direction movement module; 3. an X-direction linear motor; 3a1, X-way track; 3a2, X-direction mover; 3b, X-direction sliding rails; 3c, mounting racks; 3c1, X-direction slider; 4. a Y-direction motion module; 4a, a portal frame; 4a1, gantry beam; 4a2, post; 4b, a Y-direction linear motor; 4b1, Y-direction mover; 4b2, Y-direction track; 4c, Y-direction sliding rails; 4d, a synchronous beam; 4d1, lightening holes; 4d2, Y-direction slider; 5. a Z-direction movement module; 5a, a coarse adjustment module; 5a1, servo motor; 5a2, a screw rod; 5a3, a sliding block; 5a4, fixed block; 5a5, a first Z-direction slide rail; 5a6, a first Z-direction slider; 5a7, fixing plate; 5b, a fine adjustment module; 5b1, manual fine adjustment knob; 5b2, fine tuning motor; 5b3, a second Z-direction slide rail; 5b4, second Z-direction slider; 5b5, mounting part; 5c, mounting a plate; 6. a detection module; 7. controlling a display module; 8. a backlight source module; 8a, a supporting strip; 8b, an aluminum substrate; 8c, a light plate; 8d, homogenizing a light plate; 8e, a limiting block; 9. a crystal column; 10. an auxiliary light assembly; 10a, a pulley assembly; 10a1, a first fixed corner brace; 10a2, a first pulley; 10a3, second pulley; 10a4, a third pulley; 10a5, a fourth pulley; 10a6, a fifth pulley; 10a7, a sixth pulley; 10a8, second fixed corner brace; 10b, a fixing part; 10c, an auxiliary light source; 10d, an auxiliary slide rail; 11. a first mounting member; 12. a second mount; 13. a third mount; 14. a fourth mount; 15. a fifth mount; 16. a dust cover.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
In which like parts are designated by like reference numerals. It should be noted that the following description uses terms of orientation such as "front and back end," "left and right sides," "above," "below," and the like to refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" to refer to directions toward and away from, respectively, the geometric center of a particular component. In addition, the descriptions of "mounted on … …", "disposed on … …" and the like refer to two components having a certain connection and positional relationship, and do not refer to one component being on the upper surface of the other component. In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
Referring to fig. 1, a large-sized TFT/OLED display panel inspection platform 2 includes a base 1, an inspection platform 2, an X-direction movement module 3, a Y-direction movement module 4, a Z-direction movement module 5, an inspection module 6, and a control display module 7. The control display module 7 mainly comprises a computer arranged beside the base 1, and the computer can display some parameters of the detection platform 2 and can input some instructions for controlling the detection platform 2 to carry out detection.
The base 1 is placed on the ground, the detection platform 2 is arranged above the base 1, the detection platform 2 is used for placing a large-size TFT/OLED display panel to be detected, the detection module 6 is arranged above the detection platform 2, and the detection module 6 is used for detecting defects on the large-size TFT/OLED display panel.
The X-direction movement module 3 is used for enabling the detection module 6 to move above the detection platform 2 along the X direction, the Y-direction movement module 4 is used for enabling the detection module 6 to move above the detection platform 2 along the Y direction, and the Z-direction movement module 5 is used for enabling the detection module 6 to move above the detection platform 2 along the Z direction.
Referring to fig. 2 and 3, the base 1 includes supporting legs 1d, a base frame 1e, a base bearing beam 1a, a hydraulic supporting base 1b, and an i-shaped bearing steel 1 c. The base bearing beam 1a mainly comprises a mouth-shaped frame 1a1, a base cross beam 1a3 and three base longitudinal beams 1a2, wherein the base cross beam 1a3 and the base longitudinal beams 1a2 are both arranged on the mouth-shaped frame 1a 1. For the sake of simplifying the description, we will refer to the three base longitudinal beams 1a2 as a first longitudinal beam 1a21, a second longitudinal beam 1a22 and a third longitudinal beam 1a23, respectively, and four hydraulic support seats 1b are provided, four of the hydraulic support seats 1b are provided on the base longitudinal beams 1, two of the hydraulic support seats are provided on the first longitudinal beam 1a21 and are respectively provided near both ends of the first longitudinal beam 1a21, and the other two hydraulic support seats 1b are provided on the third longitudinal beam 1a23 and are also provided near both ends of the third longitudinal beam 1a 23. Four I-shaped bearing steel pieces 1c are arranged similarly, two of the I-shaped bearing steel pieces are arranged on the first longitudinal beam 1a21 and are arranged close to the center of the first longitudinal beam 1a21, and the other two I-shaped bearing steel pieces 1c are arranged on the third longitudinal beam 1a23 and are arranged close to the center of the third longitudinal beam 1a 23. The base frame 1e comprises four coaming plates 1e1, the four coaming plates 1e1 are respectively fixedly arranged at the outer sides of four sides of the mouth-shaped frame 1a1, one coaming plate 1e1 is provided with a wire hole 1e11, and external wires enter the device from the wire hole 1e 11.
Referring to fig. 4, the base 1 further includes a marble substrate 1f, the marble substrate 1f is fixedly disposed on the hydraulic support base 1b and the i-shaped force-bearing steel 1c, and the i-shaped force-bearing steel 1c and the hydraulic support base 1b are used for providing support for the marble substrate 1 f. Be provided with backlight module 8 on marble base plate 1f, backlight module 8 is used for lighting FTF OLED to carry out the pixel point inspection to FTF OLED.
Referring to fig. 4 and 5, a backlight module 8 includes support bar 8a, stopper 8e, light board 8c, board 8d and aluminium base board 8b of evening light, and support bar 8a sets up a plurality of, and a plurality of support bar 8a sets up on the marble base board 1f for bear aluminium base board 8b, and light board 8c lays on aluminium base board 8b, and even light board 8d sets up in light board 8c top, and light board 8c can produce the light that is used for lighting FTF OLED. Since the backlight module 8 in this embodiment is entirely square, the limiting blocks 8e in this embodiment are disposed at four corners of the backlight module 8.
Referring to fig. 6 and 7, twelve light boards 8c are provided, the twelve light boards 8c are laid on an aluminum substrate 8b according to a structure of 3X4, and crystal columns 9 are provided on the twelve light boards 8c, and the crystal columns 9 are used for supporting a light homogenizing board 8 d. Every light board 8c all electric connection have independent power and independent controller, 12 controller electric connection have a total controller, total controller electric connection have entity button and computer, can realize the control to 12 light boards 8c through the entity button or through the computer.
A light control circuit is arranged in the master controller and comprises a control chip and a single chip microcomputer connected with the control chip, the type of the control chip is ADM2587E, and the type of the single chip microcomputer is SSOP-28.
And a lamp panel control system is arranged in the programmable digital control, and comprises a light source brightness adjusting unit and a starting unit for respectively controlling each light panel 8c to be lightened.
The light source brightness adjusting unit lotus node is on the singlechip, the same lotus node of start unit is on the singlechip, the entity button all can adjust the luminance of light board 8c through the brightness adjusting unit with the computer, the entity button all can adjust the light of light board 8c through the start unit with the computer.
Referring to fig. 8-10, the Y-direction moving module 4 includes a gantry 4a, two Y-direction linear motors 4b, two Y-direction slide rails 4c, and a synchronization beam 4d, the two linear motors are respectively disposed on two sides of the marble substrate 1f,
and the Y-direction linear motor 4b includes a Y-direction magnetic track 4b2 and a Y-direction mover 4b1, two Y-direction magnetic tracks 4b2 are both arranged along the Y-axis direction, and two Y-direction magnetic tracks 4b2 are respectively arranged at both sides of the marble substrate 1f, the synchronization beam 4d is arranged along the X-axis direction, the middle of the synchronization beam 4d is provided with a plurality of weight-reducing holes 4d1 and fixedly connected with the two Y-direction stators, the gantry 4a includes two upright posts 4a2 and a gantry beam 4a1, and the gantry beam 4a1 in fig. 9 and 10 includes a casing covering the outside of the gantry beam 4a 1. Two upright posts 4a2 of the gantry 4a are arranged at two end portions of the synchronous beam 4d, four Y-direction slide rails 4c are arranged, the four Y-direction slide rails 4c are respectively arranged at two sides of two Y-direction magnetic tracks 4b2, and a Y-direction slide block 4d2 connected with the Y-direction slide rails 4c in a sliding manner is arranged at the bottom of the synchronous beam 4 d. Two ends of the two Y-direction magnetic tracks 4b2 are provided with Y-axis hydraulic buffer bases 1, and the four Y-axis hydraulic buffer bases 1 are provided with two hydraulic buffer pieces. The Y-axis hydraulic buffer mainly plays a role of collision avoidance. Referring collectively to fig. 18, a dust cover 16 may be provided over Y-direction magnetic track 4b 2.
Referring to fig. 5, 6 and 9, the light plate 8c has a width of 390mm, a length of 475mm and a thickness of 2.3mm, the aluminum substrate 8b has a width of 1180mm, a length of 1900mm and a thickness of 2mm, and the light equalizing plate 8d has a width of 1180mm, a length of 1900mm and a thickness of 2 mm.
The vertical distance between the lower surface of the synchronizing beam 4d and the upper surface of the marble substrate 1f is 36-40mm, the distance between the lower surface of the aluminum substrate 8b and the upper surface of the marble substrate 1f is 8.8-9.2mm, and the vertical distance between the lower surface of the light homogenizing plate 8d and the upper surface of the light plate 8c is 20 mm.
Referring to fig. 11, a detection rack 2a is disposed on the base 1, support blocks are disposed on two sides of the marble substrate 1f, which are not provided with magnetic tracks, and used for supporting the detection rack 2a, the detection platform 2 is disposed on the detection rack 2a, and the detection platform 2 may be a piece of transparent glass.
Referring to fig. 12 and 13, the gantry beam 4a1 is shown hiding an external cabinet, the X-direction moving module 3 is disposed on the gantry beam 4a1, and includes an X-direction linear motor 3, a mounting frame 3c, and an X-direction slide rail 3b, wherein,
set up flutedly on the crossbeam lateral wall, X includes X to active cell 3a2 and X to magnetic track 3a1 to linear electric motor 3, X sets up along X axle direction to magnetic track 3a1, and X sets up in the recess bottom to magnetic track 3a1, X is to active cell 3a2 and mounting bracket 3c fixed connection, X sets up two to slide rail 3b, two X set up the upper and lower surface at the crossbeam respectively to slide rail 3b, be provided with two X on the mounting bracket 3c and to slider 3c1, two X slide to slider 3c1 respectively with two X to slide rail 3b and be connected. Both ends of the X-direction magnetic track 3a1 are provided with an X-axis hydraulic buffer base 1, and a hydraulic buffer member is provided on the X-axis hydraulic buffer base 1.
Referring to fig. 14 and 15, the Z-direction movement module 5 includes a coarse adjustment module 5a, a fine adjustment module 5b, and a mounting plate 5 c.
The rough adjusting module 5a comprises a servo motor 5a1, a screw rod 5a2, a sliding block 5a3, a fixing plate 5a7, two first Z-direction sliding rails 5a5 and two fixing blocks 5a4, wherein the two fixing blocks 5a4 are arranged on a mounting frame 3c, the servo motor 5a1 is fixedly arranged on one fixing block 5a4, the screw rod 5a2 is vertically arranged, the screw rod 5a2 is rotatably connected between the two fixing blocks 5a4, an output shaft of the servo motor 5a1 is fixedly connected with the screw rod 5a2, the sliding block 5a3 is arranged between the two fixing blocks 5a4 and is in threaded connection with the screw rod 5a2, the fixing plate 5a7 is fixedly connected with the sliding block 5a3, the two first Z-direction sliding rails 5a5 are vertically arranged on the mounting frame 3c, a first Z-direction sliding block 5a6 is arranged on the fixing plate 5a7, and a sliding block 5a6 is in sliding connection with a 5.
The fine adjustment module 5b comprises a fine adjustment motor 5b2, a manual fine adjustment knob 5b1, a rotating shaft, a gear, a rack, a mounting part 5b5, two second Z-direction slide rails 5b3, the rack and the two second Z-direction slide rails 5b3 are vertically arranged on the fixing plate 5a7, the mounting part 5b5 is provided with a second Z-direction slide block 5b4, the second Z-direction slide block 5b4 is connected with the second Z-direction slide rails 5b3 in a sliding mode, the rotating shaft is horizontally arranged on the mounting part 5b5, one end of the rotating shaft is fixedly connected with the manual fine adjustment knob 5b1, the other end of the rotating shaft is fixedly connected with the fine adjustment motor 5b2, the mounting part 5b5 is provided with a cavity, the gear is arranged in the cavity and is coaxially and fixedly arranged on.
The mounting plate 5c is provided on the mounting portion 5b5, and the detection module 6 is provided on the mounting plate 5 c. The detection module 6 can be installed and selected according to actual conditions, under the condition that the platform precision is enough, the detection module 6 can be a microscopic detection module 6 and can also be an infrared camera detection module 6, and the detection module 6 can be freely selected due to the fact that the detection platform 2 of the invention has enough precision, even some microscopic detection modules 6 with extremely high precision requirements can be used on the platform of the invention.
Referring to fig. 16-20, in order to assist the detection module 6 in detection, an auxiliary light assembly 10 is disposed on the synchronization beam 4d, the auxiliary light assembly 10 includes a pulley assembly 10a, an auxiliary slide rail 10d, a fixing portion 10b, and an auxiliary light source 10c, the auxiliary slide rail 10d is disposed on the synchronization beam 4d along the X direction, the fixing portion 10b is fixedly disposed with an auxiliary slider, the auxiliary slider is connected to the auxiliary slide rail 10d in a sliding manner, the auxiliary light source 10c is disposed on the fixing portion 10b, and the pulley assembly 10a is configured to drive the fixing portion 10b to move along the auxiliary slide rail 10 d.
Referring to fig. 16-19, pulley assembly 10a includes a first interlocking belt (not shown), a second interlocking belt (not shown), a first fixed angle code 10a1, a second fixed angle code 10a8 (not shown in fig. 16-19), a first pulley 10a2, a second pulley 10a3, a third pulley 10a4, a fourth pulley 10a5, a fifth pulley 10a6, and a sixth pulley 10a 7. The first interlocking belt is wound around the first pulley 10a2, the second pulley 10a3, the third pulley 10a4, and the fourth pulley 10a5 in this order.
Referring to fig. 16-17, the first fixed corner brace 10a1 and the second fixed corner brace 10a8 are fixedly disposed on the left and right sides of the mounting frame 3c, and one end of the first linkage belt is fixedly disposed on the first fixed corner brace 10a1, and the other end of the first linkage belt is fixedly disposed on the second fixed corner brace 10a 8.
With reference to figure 16 of the drawings, in fig. 18 and 19, a first mounting part 11 and a second mounting part 12 are respectively disposed at left and right ends of a gantry beam 4a1, the first mounting part 11 is used for mounting a first pulley 10a2 and a third pulley 10a4, the second mounting part 12 is used for mounting a fourth pulley 10a5, a third mounting part 13 and a fourth mounting part 14 are fixedly disposed on one side wall of a synchronizing beam 4d, a fifth mounting part 15 is fixedly disposed on the other side wall of the synchronizing beam 4d, a second pulley 10a3 is mounted on the third mounting part 13, a fifth pulley 10a6 is mounted on the fourth mounting part 14, a sixth pulley 10a7 is mounted on the fifth mounting part 15, the second pulley 10a3 is coaxially and fixedly disposed with the fifth pulley 10a6, a second coupling belt is disposed between the fifth pulley 10a6 and the sixth pulley 10a7, and a fixing part 10b is fixedly connected to an upper section of the second coupling belt.
Referring to fig. 21, the movement pattern of pulley assembly 10a is: when the mounting bracket 3c moves in the X direction, that is, when the mounting bracket moves left and right in the figure, the first interlocking belt can be driven to move, and the first pulley 10a2, the second pulley 10a3, the third pulley 10a4 and the fourth pulley 10a5 are driven to rotate synchronously, so that a person skilled in the art can determine the steering direction of each pulley according to the figure, the second pulley 10a3 and the fifth pulley 10a6 are coaxially and fixedly arranged, so that the fifth pulley 10a6 can rotate together with the second pulley 10a3, and drive the second interlocking belt to move, and drive the sixth pulley 10a7 to rotate, and the fixing part 10b is fixedly arranged at the upper section of the second interlocking belt, so that the fixing part 10b can move together with the second interlocking belt, and this way of pulley arrangement can finally enable the fixing part 10b and the mounting bracket 3c to move synchronously.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (11)
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| CN201911294443.5A CN111006852B (en) | 2019-12-16 | 2019-12-16 | Large-size TFT/OLED display panel detection platform |
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