CN105487265A - Lighting jig for backlight - Google Patents
Lighting jig for backlight Download PDFInfo
- Publication number
- CN105487265A CN105487265A CN201610009389.5A CN201610009389A CN105487265A CN 105487265 A CN105487265 A CN 105487265A CN 201610009389 A CN201610009389 A CN 201610009389A CN 105487265 A CN105487265 A CN 105487265A
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- China
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- backlight
- clamp system
- base plate
- lighting jig
- screw
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The invention relates to the technical field of liquid crystal display design and manufacturing, in particular to a lighting jig for a backlight. According to the lighting jig for the backlight, a backlight clamping device and a flexible printed circuit board press-fitting device are arranged on a bottom board, the backlight clamping device comprises a first clamping mechanism and a second clamping mechanism, and the backlight is clamped between the first clamping mechanism and the second clamping mechanism. Due to the fact that the first clamping mechanism and/or the second clamping mechanism are/is detachably mounted on the bottom board through mounting holes, the distance between the first clamping mechanism and the second clamping mechanism can be adjusted by changing the position of the first clamping mechanism or the second clamping mechanism on the bottom board, the lighting jig can be suitable for backlights of different sizes and specifications, the backlights of various specifications can be subjected to lighting tests or produced, universality of the lighting jig is achieved, and production cost is reduced. Meanwhile, the magnitude of clamping force applied to the backlight can be adjusted through an adjusting assembly, and the accuracy of positioning of the backlight can be kept.
Description
Technical field
The present invention relates to liquid crystal display design and manufacturing technology field, particularly relate to a kind of backlight lighting jig.
Background technology
Current LCDs obtains using more and more widely in the various product such as mobile phone, TV, in order to uniform backlight can be got, make the brightness uniformity of LCD Panel, backlight lighting jig is generally needed to test the optical property of backlight, thus determine relative position and the angle of backlight and light source, make the demand meeting LCDs from the backlight injection briliancy of light, angle and uniformity coefficient.
Because the model of the electronic product using LCDs is a lot, the size and dimension of LCDs is also different, for LCDs provides the size and shape of the backlight module of light source also different, and the backlight lighting jig that present stage uses is all the product type specialized designs for liquid crystal display, backlight lighting jig does not have versatility, after product type changes, need to redesign lighting jig, not only cause the serious waste of resource, and add production cost, waste time and energy costly, very inconvenient.
In addition, existing lighting jig is uncontrollable for the clamping dynamics of backlight, considers the manufacturing tolerance of fixture itself and the manufacturing tolerance of backlight, may have the situation of clamping tension damage test object, also may have the situation clamping pine and cannot locate.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: existing backlight lighting jig does not have the problem of versatility, cause the serious waste of resource and the increase of cost, and lighting jig is uncontrollable for the clamping dynamics of backlight, the situation of clamping tension damage test object may be had, also may have the situation clamping pine and cannot locate.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of backlight lighting jig, comprise the base plate being provided with multiple mounting hole, described base plate is provided with backlight clamp device and flexible PCB press fit device, described backlight clamp device comprises the first clamp system and the second clamp system, described first clamp system and/or the second clamp system are arranged on base plate by mounting hole is dismountable, backlight is clamped between the first clamp system and the second clamp system, and described first clamp system or the second clamp system are provided with adjusting part, described adjusting part is applied to the size of backlight holding force for regulating, described flexible PCB press fit device is for being pressed together on base plate by the flexible PCB on backlight.
Alternatively, described first clamp system is fixedly connected with described base plate, and described mounting hole is screw, is connected by screw between described second clamp system and base plate.
Alternatively, described first clamp system is that the L shape be located on base plate is protruding, and described second clamp system comprises the installing plate being provided with screw and the L clevis part be located on installing plate, and described projection and described folder are oppositely arranged.
Alternatively, described adjusting part comprises respectively perpendicular to two adjusting screw(rod)s on L clevis part two end limit, and two described adjusting screw(rod)s hold limit to be slidably connected respectively by push rod and L clevis part two.
Alternatively, one end of described adjusting screw(rod) is provided with blind hole, and the other end is provided with and shakes wheel, and described push rod is provided with the nose section that coordinates with described blind hole and for nose section being fixed on the contraction section in blind hole; Described adjusting screw(rod) is also provided with cover plate, and one end of described cover plate is connected with adjusting screw(rod) by screw, and the other end stretches in contraction section and is stuck in described blind hole by described nose section
Alternatively, also copper sheathing is provided with between the lateral wall of described contraction section and blind hole madial wall.
Alternatively, one end that two end limits of described folder are connected with push rod is respectively equipped with chute, and two described chutes are arranged along the length direction on two end limits respectively, and be equipped with slide rail in each described chute, described push rod can slide in described chute.
Alternatively, the inner of described folder is also provided with the protective seam be made up of resilient material.
Alternatively, the fixed frame that described flexible PCB press fit device comprises rocking arm, pressing bar and is fixedly connected with described base plate, the upper end of described fixed frame is provided with multiple screw, and described rocking arm and fixed frame are connected by screw; The upper end of described pressing bar is connected with described rocking arm is dismountable, and lower end is used for pressing flexible PCB.
Alternatively, described rocking arm is provided with elongate holes, and the upper end of described pressing bar is provided with screw thread, and described pressing bar is fixed in elongate holes by two nuts.
Alternatively, the lower end of described pressing bar is provided with the pressure head for pressing backlight, and described pressure head is made up of flexible material.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: the invention provides a kind of backlight lighting jig, described base plate is provided with backlight clamp device and flexible PCB press fit device, described backlight clamp device comprises the first clamp system and the second clamp system, backlight is clamped between the first clamp system and the second clamp system, simultaneously because the first clamp system and/or the second clamp system are arranged on base plate by mounting hole is dismountable, therefore position on base plate is arranged on by changing the first clamp system or the second clamp system, regulate the distance between the first clamp system to the second clamp system, to adapt to different size, the backlight of model, lighting test or production can be carried out to the backlight of various model, achieve the general of lighting jig, reduce production cost, also regulating the size of the holding force being applied to backlight simultaneously by adjusting part, the accuracy that backlight is located can be kept, simultaneously when ensureing that holding force is stable, can also avoid causing backlight to damage because clamping force is excessive.
Accompanying drawing explanation
The advantage of the above-mentioned and/or additional aspect of the present invention will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the stereographic map of the backlight lighting jig described in the embodiment of the present invention;
Fig. 2 is the vertical view of the backlight lighting jig described in the embodiment of the present invention;
Fig. 3 is the stereographic map of the second clamp system;
Fig. 4 is the vertical view of the second clamp system;
Fig. 5 is the structural representation of folder;
Fig. 6 is the structural representation of push rod;
Fig. 7 is the structural representation of adjusting screw(rod);
Fig. 8 is the structural representation of flexible PCB press fit device.
Corresponding relation wherein in Fig. 1 to Fig. 8 between Reference numeral and component names is:
1, base plate, 11, mounting hole, the 12, first clamp system; 13, the second clamp system, 131, installing plate, 132, folder; 1321, chute, 1322, slide rail, 1323, protective seam; 133, push rod, 1331, nose section, 1332, contraction section; 14, adjusting screw(rod), 141, blind hole, 142, shake wheel; 143, copper sheathing; 15, flexible PCB press fit device, 151, fixed frame, 152, rocking arm; 1521, elongate holes; 1522, nut, 153, pressing bar, 1531, pressure head; 2, backlight, 21, flexible PCB.
Embodiment
In describing the invention, it should be noted that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of backlight lighting jig, comprise the base plate 1 being provided with multiple mounting hole 11, described base plate 1 is provided with backlight clamp device and flexible PCB press fit device 15, described backlight clamp device comprises the first clamp system 12 and the second clamp system 13, described first clamp system 12 and/or the second clamp system 13 are arranged on base plate 1 by mounting hole 11 is dismountable, backlight is clamped between the first clamp system 12 and the second clamp system 13, and described first clamp system 12 or the second clamp system 13 are provided with adjusting part, described adjusting part is applied to the size of backlight holding force for regulating, described flexible PCB press fit device 15 is for being pressed together on base plate 1 by the flexible PCB on backlight.Backlight lighting jig provided by the invention, backlight can be clamped between the first clamp system 12 and the second clamp system 13, simultaneously because the first clamp system 12 and/or the second clamp system 13 are arranged on base plate 1 by mounting hole 11 is dismountable, therefore position on base plate 1 is arranged on by changing the first clamp system 12 or the second clamp system 13, regulate the distance between the first clamp system 12 to the second clamp system 13, to adapt to different size, the backlight of model, lighting test or production can be carried out to the backlight of various model, achieve the general of lighting jig, reduce production cost, also regulating the size of the holding force being applied to backlight simultaneously by adjusting part, the accuracy that backlight is located can be kept, simultaneously when ensureing that holding force is stable, can also avoid causing backlight to damage because clamping force is excessive.
Embodiment one
As depicted in figs. 1 and 2, the backlight lighting jig that the present embodiment provides, comprise the base plate 1 being provided with multiple mounting hole 11, multiple described mounting hole 11 is uniformly distributed on described base plate 1, wherein said first clamp system 12 is fixedly connected with described base plate 1, described mounting hole 11 is screw, be connected by screw between described second clamp system 13 and base plate 1, the dismounting that screw connects is fairly simple, the dismounting of convenience and the second clamp system 13 and installation, because the first clamp system 12 is fixed on base plate 1, therefore by regulating the second clamp system 13 position be arranged on base plate to regulate distance between the first clamp system 12 and the second clamp system 13, to adapt to the clamping position of the backlight 2 of Multiple Type, in addition, by screw, the second clamp system 13 is fixed on base plate 1, simple to operate, easy accessibility.
Alternatively, as shown in Figure 2, described first clamp system 12 is for being located at the L shape projection on base plate 1, described L shape projection can be fixed on base plate by the mode of welding, also can be integrated with described base plate 1, as shown in Figure 3 and Figure 4, described second clamp system 13 comprises the installing plate 131 being provided with screw and the L clevis part 132 be located on installing plate 131, described projection and described folder 132 are oppositely arranged, namely the angle of two L shapes is that diagonal angle is arranged, such installing plate 131 is fixed by screws on base plate 1, L shape projection and L clevis part 132 are clamped in two diagonal angle ends of backlight respectively simultaneously, the movement of backlight planar in all directions can be limited like this, more firm for fixing of backlight, locate more stable.Described adjusting part comprises respectively perpendicular to two adjusting screw(rod)s 14 on L clevis part 132 two end limit, and as shown in Figure 6, two described adjusting screw(rod)s 14 hold limit to be slidably connected respectively by push rod 133 and L clevis part 132 two.Shaking wheel 142 by rotation makes folder 132 planar move, two orthogonal adjusting screw(rod)s 14 are utilized to finely tune the planimetric position of folder 132 on base plate 1, and then the holding force improved for backlight, keep the moderate of dynamics is clamped for backlight, avoid holding force to spend and greatly damage is caused to liquid crystal display, or holding force is spent little, and cause the problem that cannot locate.Alternatively, as shown in Figure 7, one end of described adjusting screw(rod) 14 is provided with blind hole 141, and the other end is provided with and shakes wheel 142, shakes wheel 142 regulate two adjusting screw(rod)s 14 by rotation, and then regulates the clamping dynamics for backlight; Described push rod 133 is provided with the nose section 1331 that coordinates with described blind hole 141 and for nose section 1331 being fixed on the contraction section 1332 in blind hole 141; Described adjusting screw(rod) 14 is also provided with cover plate, one end of described cover plate is connected with adjusting screw(rod) 14 by screw, the other end stretches into and is stuck in described blind hole 141 by described nose section 1331 in contraction section 1332, limits the movement of push rod 133 along adjusting screw(rod) 14 axis by cover plate.
Preferably, also be provided with copper sheathing 143 between the lateral wall of described contraction section 1332 and blind hole 141 madial wall, the main lubricate of copper sheathing 143, can make adjusting screw(rod) 14 rotate relative to push rod 133, prevent adjusting screw(rod) 14 from driving push rod 133 to rotate, avoid injuring folder 132, alternatively, as shown in Figure 5 and Figure 6, one end that two end limits of described folder 132 are connected with push rod 133 is respectively equipped with chute 1321, two described chutes 1321 are arranged along the length direction on two end limits respectively, slide rail 1322 is equipped with in each described chute 1321, described slide rail 1322 pairs of push rods 133 lead, described push rod 133 can slide in described chute 1321, convenient in finely tuning backlight holding force, the inner of described folder 132 is also provided with the protective seam 1323 be made up of resilient material simultaneously, described resilient material is rubber, it is large that it has friction force, the feature that plasticity is high, backlight can be protected on the one hand, larger friction force better can clamp backlight on the other hand.
Alternatively, as shown in Figure 8, the fixed frame 151 that described flexible PCB press fit device 15 comprises rocking arm 152, pressing bar 153 and is fixedly connected with described base plate 1, the limit, upper end of described fixed frame 151 is provided with multiple screw, and described rocking arm 152 is connected by screw with fixed frame 151; The upper end of described pressing bar 153 is connected with described rocking arm 152 is dismountable, the lower end of described pressing bar 153 is provided with the pressure head 1531 be made up of flexible material, described pressure head 1531 is for pressing flexible PCB, and pressure head 1531 is made up of flexible material, can shield to flexible PCB; The position of screw on fixed head is fixed on to regulate the operating space of pressing flexible PCB by rocking arm 152 correspondence, the upper end of the bar of pressing simultaneously 153 is connected with rocking arm 152 is dismountable, therefore suitable pressing bar 153 can be changed according to different flexible PCBs, and before fixing rocking arm 152 can the angle of rotating arm 152 to suitable position, adapt to the pressing demand of different flexible PCBs.
Preferably, described rocking arm 152 is provided with elongate holes 1521, the upper end of described pressing bar 153 is provided with screw thread, described pressing bar 153 is fixed in elongate holes 1521 by two nuts 1522, the effective rake of pressing bar 153 can be regulated by regulating two nuts 1522, and then regulate the pressure force of pressure head 1531 pairs of flexible PCBs.
Illustrate that backlight lighting jig provided by the invention carries out the course of work of backlight lighting below:
First, one of backlight jiao is fixed in the L shape projection on base plate, the respective model of the backlight tested as required and size, select the fixed position of the second clamp system, the folder on the second clamp system is made to be stuck in another relative angle of backlight, now regulate folder for the holding force of backlight, until stop operating when holding force is adjusted to correct position shake wheel by rotating to shake to take turns; Then according to the adjustment installation site of rocking arm on fixed frame, position of flexible PCB, the fixed position of adjusting rock arm in elongate holes simultaneously, and according to the effective rake of height adjusting rock arm, guarantee the stability for flexible PCB pressing, can avoid again damaging flexible PCB by pressure simultaneously.
In sum, the invention provides a kind of backlight lighting jig, described base plate is provided with backlight clamp device and flexible PCB press fit device, described backlight clamp device comprises the first clamp system and the second clamp system, backlight is clamped between the first clamp system and the second clamp system, simultaneously because the first clamp system and/or the second clamp system are arranged on base plate by mounting hole is dismountable, therefore position on base plate is arranged on by changing the first clamp system or the second clamp system, regulate the distance between the first clamp system to the second clamp system, to adapt to different size, the backlight of model, lighting test or production can be carried out to the backlight of various model, achieve the general of lighting jig, reduce production cost, also regulating the size of the holding force being applied to backlight simultaneously by adjusting part, the accuracy that backlight is located can be kept, simultaneously when ensureing that holding force is stable, can also avoid causing backlight to damage because clamping force is excessive.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (11)
1. a backlight lighting jig, it is characterized in that: comprise the base plate being provided with multiple mounting hole, described base plate is provided with backlight clamp device and flexible PCB press fit device, described backlight clamp device comprises the first clamp system and the second clamp system, described first clamp system and/or the second clamp system are arranged on base plate by mounting hole is dismountable, backlight is clamped between the first clamp system and the second clamp system, and described first clamp system or the second clamp system are provided with adjusting part, described adjusting part is applied to the size of backlight holding force for regulating, described flexible PCB press fit device is for being pressed together on base plate by the flexible PCB on backlight.
2. backlight lighting jig according to claim 1, is characterized in that: described first clamp system is fixedly connected with described base plate, and described mounting hole is screw, is connected by screw between described second clamp system and base plate.
3. backlight lighting jig according to claim 2, it is characterized in that: described first clamp system is that the L shape be located on base plate is protruding, described second clamp system comprises the installing plate being provided with screw and the L clevis part be located on installing plate, and described projection and described folder are oppositely arranged.
4. backlight lighting jig according to claim 3, it is characterized in that: described adjusting part comprises respectively perpendicular to two adjusting screw(rod)s on L clevis part two end limit, two described adjusting screw(rod)s hold limit to be slidably connected respectively by push rod and L clevis part two.
5. backlight lighting jig according to claim 4, it is characterized in that: one end of described adjusting screw(rod) is provided with blind hole, the other end is provided with and shakes wheel, and described push rod is provided with the nose section that coordinates with described blind hole and for nose section being fixed on the contraction section in blind hole; Described adjusting screw(rod) is also provided with cover plate, and one end of described cover plate is connected with adjusting screw(rod) by screw, and the other end stretches in contraction section and is stuck in described blind hole by described nose section.
6. backlight lighting jig according to claim 5, is characterized in that: be also provided with copper sheathing between the lateral wall of described contraction section and blind hole madial wall.
7. backlight lighting jig according to claim 6, it is characterized in that: one end that two end limits of described folder are connected with push rod is respectively equipped with chute, two described chutes are arranged along the length direction on two end limits respectively, be equipped with slide rail in each described chute, described push rod can slide in described chute.
8. backlight lighting jig according to claim 3, is characterized in that: the inner of described folder is also provided with the protective seam be made up of resilient material.
9. backlight lighting jig according to claim 1, it is characterized in that: the fixed frame that described flexible PCB press fit device comprises rocking arm, pressing bar and is fixedly connected with described base plate, the upper end of described fixed frame is provided with multiple screw, and described rocking arm and fixed frame are connected by screw; The upper end of described pressing bar is connected with described rocking arm is dismountable, and lower end is used for pressing flexible PCB.
10. backlight lighting jig according to claim 9, is characterized in that: described rocking arm is provided with elongate holes, and the upper end of described pressing bar is provided with screw thread, and described pressing bar is fixed in elongate holes by two nuts.
11. backlight lighting jigs according to claim 10, is characterized in that: the lower end of described pressing bar is provided with the pressure head for pressing backlight, and described pressure head is made up of flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610009389.5A CN105487265B (en) | 2016-01-07 | 2016-01-07 | A kind of backlight lighting jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610009389.5A CN105487265B (en) | 2016-01-07 | 2016-01-07 | A kind of backlight lighting jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105487265A true CN105487265A (en) | 2016-04-13 |
| CN105487265B CN105487265B (en) | 2019-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610009389.5A Expired - Fee Related CN105487265B (en) | 2016-01-07 | 2016-01-07 | A kind of backlight lighting jig |
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| Country | Link |
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| CN (1) | CN105487265B (en) |
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| CN108761867A (en) * | 2018-07-04 | 2018-11-06 | 武汉精测电子集团股份有限公司 | A kind of pressure head structure for preventing maloperation on measurement jig |
| CN108803099A (en) * | 2018-08-16 | 2018-11-13 | 武汉精测电子集团股份有限公司 | A kind of flexible hardness screen detection jig of included backlight |
| CN110736606A (en) * | 2018-07-20 | 2020-01-31 | 黄山市展硕半导体科技有限公司 | Backlight source detection tool and automatic adjustment method thereof |
| CN111982922A (en) * | 2020-07-18 | 2020-11-24 | 东莞恒扬光电有限公司 | Intelligent vision AOI detects machine |
| CN113305759A (en) * | 2021-06-11 | 2021-08-27 | 常州机电职业技术学院 | Adjustable chip fixing jig for chip processing equipment |
| CN115629493A (en) * | 2022-12-22 | 2023-01-20 | 江苏比微曼智能科技有限公司 | Vacuum lighting fixture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108803099A (en) * | 2018-08-16 | 2018-11-13 | 武汉精测电子集团股份有限公司 | A kind of flexible hardness screen detection jig of included backlight |
| CN111982922A (en) * | 2020-07-18 | 2020-11-24 | 东莞恒扬光电有限公司 | Intelligent vision AOI detects machine |
| CN113305759A (en) * | 2021-06-11 | 2021-08-27 | 常州机电职业技术学院 | Adjustable chip fixing jig for chip processing equipment |
| CN113305759B (en) * | 2021-06-11 | 2022-09-16 | 常州机电职业技术学院 | Adjustable chip fixing jig for chip processing equipment |
| CN115629493A (en) * | 2022-12-22 | 2023-01-20 | 江苏比微曼智能科技有限公司 | Vacuum lighting fixture |
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| Publication number | Publication date |
|---|---|
| CN105487265B (en) | 2019-03-05 |
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