WO2018010446A1 - 灯条组装装置以及利用其进行灯条组装的方法 - Google Patents

灯条组装装置以及利用其进行灯条组装的方法 Download PDF

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Publication number
WO2018010446A1
WO2018010446A1 PCT/CN2017/077084 CN2017077084W WO2018010446A1 WO 2018010446 A1 WO2018010446 A1 WO 2018010446A1 CN 2017077084 W CN2017077084 W CN 2017077084W WO 2018010446 A1 WO2018010446 A1 WO 2018010446A1
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WO
WIPO (PCT)
Prior art keywords
light bar
rotating platform
pressing
bar assembly
backing plate
Prior art date
Application number
PCT/CN2017/077084
Other languages
English (en)
French (fr)
Inventor
张庆
栾庆军
王挺
周玉华
Original Assignee
京东方科技集团股份有限公司
京东方光科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 京东方光科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/555,037 priority Critical patent/US10508781B2/en
Publication of WO2018010446A1 publication Critical patent/WO2018010446A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • 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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G02F2201/503—Arrangements improving the resistance to shock
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49904—Assembling a subassembly, then assembling with a second subassembly

Definitions

  • the present invention relates to the field of display device manufacturing, and in particular to a light bar assembly device and a method for assembling the same using the same.
  • the backlight product process is an important part of the field, and the LED light bar is one of the core components of the backlight module.
  • the market puts higher demands on the performance of liquid crystal displays, such as strong anti-shock for automotive displays, high temperature resistance for some devices and meters, and the demand for LCD displays.
  • the thickness of the liquid crystal display is required to be lowered.
  • the traditional backlight module LED light bar has been eliminated by means of screw fixing.
  • the double-sided tape is mainly used for bonding.
  • problems such as insufficient bonding, insufficient bonding strength, and offset of the bonding position are likely to occur. Therefore, in the assembly work of the LED light bar, the assembly to be assembled must be effectively fixed and positioned, and the light bar should be attached to the surface of the light bar after the light bar is attached, so that the light bar is accurately and tightly fixed on the backlight back plate.
  • the present invention provides an improved light bar assembly device and a method of assembling a light bar using the light bar assembly device.
  • a light bar assembly apparatus comprising a rotating platform and a press drive module disposed at an outer side of the rotary platform, the rotary platform being provided with a fitting for a backing plate to be fitted to the light bar
  • the process positioning stage and the pressing process for the back plate to which the light bar is attached are positioned to position the stage, and the press drive module is configured to perform a pressing operation on the light bar attached to the back plate.
  • the light bar assembly device realizes integration of the light bar fitting and pressing process, reduces waste of transmission and waiting time, and improves work efficiency.
  • the device has two conforming positioning stations and two press positioning stations. This arrangement allows the lamination process and the lamination process to be performed in parallel.
  • the rotating platform has a disk-shaped rotating base, and the fitting positioning stage and the pressing positioning stage are arranged in a circumferential direction On the surface of the pedestal. This arrangement facilitates the cyclic execution of the lamination and pressing processes.
  • the conforming positioning stage has a groove that matches a side of the backing plate to which the light bar is to be mounted.
  • the press-fit positioning stage has a boss that matches the shape of the body of the back plate to which the light bar is attached, so that the back plate is inverted on the boss. .
  • the backing plate is buckled on the carrying platform, it is more stably loaded; at this time, the pressing action can directly act on the side of the backing plate to which the light bar is attached, so as to avoid damage to the light bar caused by directly impacting the surface of the light bar. .
  • the side of the boss that faces the periphery of the rotating platform has a notch for evading the light source on the light strip. This gap protects the light source on the light strip from damage.
  • a locking device for locking the rotating platform is provided below the rotating platform. This locking enables stability of the rotating platform during press-fitting, thereby increasing the precision of the press-fit.
  • the locking device is a pneumatic bolt and the rotating platform has an aperture for insertion of the pneumatic bolt.
  • a backplane position detecting device is disposed under the rotating base.
  • the rotation of the rotating platform can be precisely controlled by the detecting device, thereby improving the alignment precision.
  • the backplane position detecting device is implemented using a photosensor or a metal sensor.
  • the press drive module is comprised of a dual shaft cylinder and a compression head.
  • a current limiting barometer for the press drive module is also included.
  • the pressing force can be precisely adjusted according to different requirements.
  • a toggle switch for the manual/automatic rotation mode of the rotary platform is also included. According to the requirements of different models, the switching between automatic rotation and manual rotation can be realized by the control of the switch.
  • the bonding process positioning stage and the pressing process positioning stage are replaceable. Adaptable to different sizes of backplanes and light strips by changing the stage
  • a method of assembling a light bar using the light bar assembly apparatus described above comprising the steps of:
  • the back plate to which the light bar is attached is inverted on the positioning stage of the pressing process, and the side of the back plate to which the light bar is attached is directed to the outside of the rotating platform;
  • the pressing drive module is driven to perform a pressing operation on the light bar on the backboard.
  • the light bar assembly device has a simple structure, is convenient for maintenance, and realizes the assembly of the LED light bar and the pressing process, and the manpower requirement is reduced by 50%, and the welding device can be used for the bonding and pressing cooperation. Simultaneously, reducing the waste of waiting time.
  • FIG. 1 shows an overall schematic view of a light bar assembly device in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic view showing the structure of a rotating platform in a light bar assembling device according to an embodiment of the present invention.
  • 3A is a schematic view showing the structure of a positioning stage of a bonding process in a light bar assembling device according to an embodiment of the present invention.
  • FIG. 3B is a schematic view showing a state in which the positioning stage of the positioning stage is loaded with the backing plate according to the embodiment of the present invention.
  • FIG. 4A is a schematic view showing the structure of a aligning process positioning stage in a light bar assembling device according to an embodiment of the present invention.
  • 4B is a schematic view showing a state in which a positioning stage of a press-fit process is carried by a press-fit process according to an embodiment of the present invention.
  • FIG. 5A shows a detailed structural view of a press drive module in a light bar assembly apparatus according to an embodiment of the present invention.
  • 5B is a schematic view showing a state in which a press-fit driving module presses a light bar in a backing plate according to an embodiment of the present invention.
  • FIG. 6 shows an arrangement diagram of a position detecting device and a locking device disposed under a rotating platform according to an embodiment of the present invention.
  • Fig. 7 shows a schematic view of an operation panel of a light bar assembly device according to an embodiment of the present invention.
  • Figure 8 illustrates a method of lamp strip assembly using a light bar assembly apparatus in accordance with an embodiment of the present invention.
  • the light bar assembly device mainly comprises a rotary platform 12 and a press drive module 2, which are respectively disposed in the base 5.
  • the rotating platform 12 is provided with a bonding process positioning stage 4, 11 and a pressing process positioning stage 6, 13.
  • the laminating process positions the stages 4, 11 for carrying a backing plate (or bottom plate) of the display device to which the light bar is to be attached.
  • the positioning stage 4 is a stage when the backing board is not carried, and in the bonding process, the positioning stage 11 is a stage after the backing board is carried.
  • the pressing process positioning stages 6, 13 are used to carry a backing plate to which the light bar is attached and to be pressed.
  • the pressing process positioning stage 6 is a stage when the backing plate is not carried, and the pressing process positioning stage 13 is a stage after the backing plate is carried.
  • the number of the two stages shown in Fig. 1 is two each, and they are alternately arranged on the rotary table 12 in the circumferential direction. This facilitates the combined pipeline operation of the two processes.
  • the device can perform a press-fit operation at the same time when the operator performs a fitting operation.
  • more stages can be placed on the rotating platform 12.
  • the above-mentioned stage is replaceable, and the corresponding stage can be replaced according to the specifications of different back boards, thereby greatly improving the group. Applicability of the installed device.
  • the press drive module 2 is disposed at the outer side of the rotary platform 12. When the pressing process of the backing plate to be pressed is carried out, the positioning stage 13 is aligned with the pressing drive module 2 as the rotation of the rotating platform 12 (as shown in Fig. 1). The press drive module 2 can drive the press head to extend to press the back plate. As further shown in Figures 5A and 5B, the press drive module 2 is realized, for example, in the form of a two-shaft cylinder. On the base 5, a finite flow barometer 1 is also provided for setting the magnitude of the air pressure of the cylinders in the press drive module 2, so that the adjustment of the pressure of the press can be achieved.
  • the light bar assembly device is also provided with a time delay relay 9, which is adjustable and can be used to adjust the duration of press-fitting of the backing plate to achieve different requirements.
  • the adjustment knob of the time delay relay 9 is provided, for example, on the operation panel on the front side of the base 5, as further shown in FIG.
  • the light bar assembly device realizes the integration of the two processes of the light bar fitting and pressing, reduces the waste of the transfer and the waiting time, and has the advantages of simple structure, high flexibility, and convenient maintenance.
  • the rotating platform has a rotating base, which has a disk shape, for example.
  • the fitting process positioning stage and the pressing process positioning stage are both disposed on the rotating base, and they are arranged, for example, in the circumferential direction.
  • the direction of rotation is preferably marked on the spin base for operator operation.
  • the spin base can also have other shapes than the disc, such as a rectangle.
  • FIG. 3A is a schematic view showing the structure of the positioning stage 4 in the bonding process in the light bar assembling device according to the embodiment of the present invention.
  • the stage 4 is used to carry a backing plate to which the light bar is to be attached, so that the stage 4 has a recess 41 for engaging the backing plate.
  • the groove 41 is matched to the side of the backing plate to be mounted, that is, the side can be firmly engaged in the groove 41.
  • the stage 4 can also have a recess 42 for the passage of a flexible circuit board in the light strip to be mounted.
  • the stage 4 has a screw hole 43 which can be fixed to the rotary base by screws. Of course, the stage 4 can also be fixed to the rotating base in another fixed manner.
  • stage 4 illustrated in FIG. 3A is merely an example, and the stage 4 may have other shapes and sizes for different shapes and regular back sheets.
  • FIG. 3B is a schematic view showing a state in which the positioning stage of the positioning stage is loaded with the backing plate according to the embodiment of the present invention.
  • FIG. 3B the back plate can be firmly engaged in the groove 41, Thereby, it is easy to perform the bonding operation, that is, the light bar having the light source is attached to the side edge by the double-sided tape.
  • the stage 6 has a boss that matches the shape of the body of the backing plate to which the light bar is attached, so that the backing plate is inverted on the boss.
  • one side of the stage 6 ie, the side facing the outer side of the rotating platform
  • the stage 6 can also be provided with apertures 62 for the passage of optical signals for the backplane position detecting device (described further below), which is described in further detail below.
  • the stage 6 is further provided with a screw hole 63, and the stage 4 can be fixed to the rotary base by screws.
  • the stage 4 can also be fixed on the rotating base by other fixing means.
  • stage 6 illustrated in FIG. 4A is merely an example, and the stage 6 may have other shapes and sizes for different shapes and regular back sheets.
  • FIG. 4B is a schematic view showing a state in which a positioning stage of a press-fit process is carried by a press-fit process according to an embodiment of the present invention.
  • the backing plate to which the light bar is attached can be stably folded down on the boss, and its side edges are engaged with the four side edges of the boss.
  • the side to which the light bar is attached is aligned with the side of the boss having the notch 61 so that the light source on the light bar is received in the notch 61. Folding the backing plate on the boss can make the bearing more stable, which is beneficial to improve the stability of the pressing operation.
  • FIG. 5A shows a detailed structural view of a press drive module in a light bar assembly apparatus according to an embodiment of the present invention.
  • the press drive module 2 has a press head 21 and a cylinder 22.
  • the press head 21 is coupled to a drive rod on the cylinder 22 and has a flat front surface to facilitate application of pressure to the sides of the backing plate.
  • the cylinder 22 is preferably a two cylinder cylinder.
  • the press-fit drive module eliminates the need for rails and is less expensive to manufacture.
  • FIG. 5B is a schematic view showing a state in which a press-fit driving module presses a light bar in a backing plate according to an embodiment of the present invention.
  • the drive rod of the cylinder upon press-fitting, the drive rod of the cylinder extends to press the press head against one side of the backing plate, thereby applying pressure to the side of the backing plate to which the light strip is attached.
  • the time delay relay 9 the duration of the pressing can be adjusted; by adjusting the current limiting barometer 1, the pressure can be adjusted.
  • FIG. 5B shows a schematic view of the arrangement of components disposed under a rotating platform, in accordance with an embodiment of the present invention. As can be seen from Fig. 6, a backing plate position detecting device and a locking device are disposed below the rotating base.
  • the backplane position detecting device can be implemented using a photosensor.
  • the photosensor In the pressing process positioning the stage and the corresponding position of the rotating base, holes are provided for the light emitted by the photoelectric sensor to pass through.
  • the photosensor detects the light reflected back from the backing plate, it can send a signal to indicate that the pressing process carrying the backing plate is detected to position the stage to the designated position, so that the pressing operation can be performed.
  • the backplane position detecting device may have two (for example, sensors 14 and 15 in Fig. 6) to improve the accuracy of the detection.
  • the backplane position detecting device can be implemented using a metal sensor.
  • the metal sensor controls the rotating platform to stop when a back plate made of a metal material is detected in the vicinity thereof to perform a pressing operation.
  • a rotary drive device 16 and a locking device 17 are also provided below the base.
  • the rotary drive device 16 is, for example, a rotary cylinder.
  • the cylinder can be used to drive the rotary base to rotate.
  • the rotary driving device 16 stops driving the rotation of the rotating base, and the locking device 17 locks the rotating base, and then performs the above-described pressing process.
  • the rotary drive device 16 can also be implemented using a stepper motor.
  • the locking device 17 is for example a pneumatic bolt.
  • the pneumatic bolt bounces up and rotates into the hole in the base to lock the rotating base before the rotating base stops rotating, thereby preventing the movement of the rotating base and ensuring the pressing operation. Accuracy.
  • Fig. 7 shows a schematic view of an operation panel of a light bar assembly device according to an embodiment of the present invention.
  • the front side of the light bar assembly device is provided with an operation panel.
  • a power switch 7, a manual/automatic rotation mode changeover switch 8, a time delay relay adjustment knob 9, and a manual operation switch 10 are disposed on the operation panel.
  • the manual/automatic mode switch 8 is used to switch the operation mode of the light bar assembly device.
  • the assembly device In the automatic mode, the assembly device automatically controls the rotation of the spin base.
  • the rotation of the spin base is controlled by the user operating the switch 10 manually.
  • a method of assembling a light bar using the light bar assembly apparatus provided by the embodiment of the present invention will be described below with reference to FIG.
  • the method includes the following steps.
  • step S1 the backing plate is fixed to the bonding process positioning stage and then the light bar is attached to the side of the backing plate.
  • This step is easy to operate and is less prone to errors due to the use of the positioning stage in the laminating process. This step can be used when the rotating platform stops rotating Waiting.
  • step S2 the backing plate to which the light bar is attached is inverted on the positioning stage of the pressing process, and the side of the backing plate to which the light bar is attached is directed to the outside of the rotating platform. This step is easy to operate due to the use of the positioning stage in the press-fit process.
  • step S3 the rotating platform is rotated until the pressing process positioning stage carrying the backing plate faces the pressing drive module.
  • the rotation can be controlled automatically or manually, and the pressing process positioning the stage and the press drive module can be detected by the backplane position detecting device described above.
  • step S4 the press driving module is driven to perform a pressing operation on the light bar on the backboard.
  • the locking device 17 locks the rotating base so as to be immobilized, thereby improving the precision of the pressing and avoiding damage of the backing plate due to the shaking of the rotating base.

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Abstract

一种灯条组装装置，该装置包括旋转平台（12）和设置在旋转平台的外侧处的压合驱动模块（2），旋转平台（12）设置有用于待贴合灯条的背板的贴合工序定位载台（4，11）和用于贴合有灯条的背板的压合工序定位载台（6，13），压合驱动模块（2）被配置用于对贴合在背板上的灯条进行压合操作。该装置实现了贴合工序和压合工序的整合，提高了工作效率。以及一种利用该装置进行灯条组装的方法。

Description

灯条组装装置以及利用其进行灯条组装的方法 技术领域
本发明涉及显示设备制造领域，并且具体涉及一种灯条组装装置以及利用其进行灯条组装的方法。
背景技术
在TFT-LCD产业链中，背光源产品工艺为该领域的重要组成部分，而LED灯条是背光模组的核心部件之一。随着技术进步和液晶显示器被更加广泛地应用，市场对液晶显示器性能提出更高要求，如对于汽车用显示器要求坚固抗震，对于部分设备仪表显示器要求耐高温，在要求液晶显示器的强度增加的同时要求液晶显示器的厚度降低。传统背光模组LED灯条用螺丝固定的方式已淘汰，目前主要采用双面胶带贴合的方式。但是使用胶带进行贴合的作业中，容易出现贴合不够紧密、贴合强度不够均匀、贴合位置偏移等问题。因此在LED灯条组装作业中，必须对待组装部件有效固定和定位，灯条贴合后需进行垂直于灯条表面的压附，使灯条准确并紧密固定在背光背板上。
因此，需要一种改进的灯条组装装置以实现更好的灯条组装。
发明内容
鉴于以上问题，本发明提出了一种改进的灯条组装装置，以及一种利用该灯条组装装置进行灯条组装的方法。
根据第一方面，提出了一种灯条组装装置，其包括旋转平台和设置在旋转平台的外侧处的压合驱动模块，所述旋转平台设置有用于待贴合灯条的背板的贴合工序定位载台和用于贴合有灯条的背板的压合工序定位载台，所述压合驱动模块被配置用于对贴合在背板上的灯条进行压合操作。该灯条组装装置实现了灯条贴合、压合工序的整合，减少传递和等待时间浪费，提高了工作效率。
在可选的实施例中，所述装置具有两个贴合定位载台和两个压合定位载台。这一布置可允许贴合工序和压合工序被并行执行。
在进一步可选的实施例中，所述旋转平台具有圆盘状旋转基座，并且所述贴合定位载台和所述压合定位载台沿着圆周方向被布置在所 述基座的表面上。这一布置便于贴合、压合工序的循环执行。
在可选的实施例中，所述贴合定位载台具有与所述背板的待安装灯条的侧边匹配的凹槽。
在可选的实施例中，所述压合定位载台具有与所述贴合有灯条的背板的主体形状匹配的凸台，以便于所述背板被倒扣在所述凸台上。当背板被倒扣在承载台上时，其得到更稳固的承载；此时，压合动作可直接作用在背板贴有灯条的一侧，避免直接冲击灯条表面造成灯条的损伤。
在进一步可选的实施例中，所述凸台上朝向所述旋转平台的外围的一侧具有用于避让所述灯条上的光源的缺口。该缺口可保护灯条上的光源免受损伤。
在可选的实施例中，在所述旋转平台下面设置有用于对所述旋转平台进行锁定的锁定设备。这一锁定可实现旋转平台在压合期间的稳定性，从而提高压合的精度。
在可选的实施例中，所述锁定设备是气动凸栓，并且所述旋转平台具有供所述气动凸栓插入的孔。
在可选的实施例中，所述旋转基座下设置有背板位置检测设备。通过该检测设备可精确控制旋转平台的旋转，从而提高对准精度。
在可选的实施例中，所述背板位置检测设备利用光电传感器或金属传感器来实施。
在可选的实施例中，所述压合驱动模块由双轴气缸和压合头构成。
在可选的实施例中，还包括用于所述压合驱动模块的限流气压表。由此，压合力度根据不同要求可被精确调整。
在可选的实施例中，还包括用于所述旋转平台的手动/自动旋转模式的切换开关。根据不同机种要求，可通过该开关的控制可实现自动旋转和手动旋转的切换。
在可选的实施例中，所述贴合工序定位载台和所述压合工序定位载台是可更换的。可通过更换载台的方式来适应不同尺寸的背板和灯条
根据另一方面，提出了一种利用上文所述的灯条组装装置进行灯条组装的方法，该方法包括以下步骤：
将背板固定在贴合工序定位载台上并且将灯条贴合到所述背板的 侧边上；
将贴合有灯条的背板倒扣在压合工序定位载台上，同时使所述背板的贴合有灯条的一侧朝向旋转平台外侧；
使所述旋转平台旋转，直到承载有所述背板的压合工序定位载台与压合驱动模块正对；以及
驱动所述压合驱动模块对所述背板上的灯条进行压合操作。
根据本发明的实施例的灯条组装装置具有简单的结构，便于维护，并且实现LED灯条贴合、压合工序合并，人力需求减少50％，并且利用旋转装置可实现贴合、压合作业同时进行，减少等待时间浪费。
附图说明
包括附图以提供对实施例的进一步理解并且附图被并入本说明书中并且构成本说明书的一部分。附图图示了实施例并且与描述一起用于解释本发明的原理。将容易认识到其它实施例和实施例的很多预期优点，因为通过引用以下详细描述，它们变得被更好地理解。附图的元件不一定是相互按照比例的。同样的附图标记指代对应的类似部件。
图1示出了根据本发明的实施例的灯条组装装置的整体结构示意图。
图2示出了根据本发明的实施例的灯条组装装置中的旋转平台的结构示意图。
图3A示出根据本发明的实施例的灯条组装装置中的贴合工序定位载台的结构示意图。
图3B示出根据本发明的实施例的贴合工序定位载台在承载了背板时的状态示意图。
图4A示出根据本发明的实施例的灯条组装装置中的压合工序定位载台的结构示意图。
图4B示出根据本发明的实施例的压合工序定位载台在承载了背板时的状态示意图。
图5A示出根据本发明的实施例的灯条组装装置中的压合驱动模块的具体结构图。
图5B示出根据本发明的实施例的压合驱动模块在对背板中的灯条进行压合时的状态示意图。
图6示出根据本发明的实施例的设置于旋转平台下的位置检测设备和锁定设备的布置示意图。
图7示出根据本发明的实施例的灯条组装装置的操作面板示意图。
图8示出利用根据本发明的实施例的灯条组装装置进行灯条组装的方法。
具体实施方式
在以下详细描述中，参考附图，该附图形成详细描述的一部分，并且通过其中可实践本发明的说明性具体实施例来示出。对此，参考描述的图的取向来使用方向术语，例如“顶”、“底”、“左”、“右”、“上”、“下”等。因为实施例的部件可被定位于若干不同取向中，为了图示的目的使用方向术语并且方向术语绝非限制。应当理解的是，可以利用其他实施例或可以做出逻辑改变，而不背离本发明的范围。因此以下详细描述不应当在限制的意义上被采用，并且本发明的范围由所附权利要求来限定。
应当理解的是，本文描述的各个示例性实施例的特征可以相互组合，除非特别另外指出。
图1示出了根据本发明的实施例的灯条组装装置的整体结构示意图。从图1可看出，该灯条组装装置主要包括旋转平台12和压合驱动模块2，其分别被设置在底座5中。其中在旋转平台12中设置有贴合工序定位载台4、11和压合工序定位载台6、13。该贴合工序定位载台4、11用于承载待贴合灯条的显示设备的背板(或称为底板)。贴合工序定位载台4为未承载背板时的载台，而贴合工序定位载台11为承载背板后的载台。当背板被放置在贴合工序定位载台上时，操作员可方便地将设置有背光源的灯条贴合在背板的内侧上。压合工序定位载台6、13用于承载贴合有灯条并且待压合的背板。而压合工序定位载台6为未承载背板时的载台，而压合工序定位载台13为承载背板后的载台。在图1中示出的两种载台的数量各为两个，并且其沿着圆周方向交替布置在旋转平台12上。这有助于两个工序相结合的流水线操作。例如，在操作员执行贴合操作时，该装置可同时执行压合操作。当然，可选地，在旋转平台12上可以设置更多的载台。并且优选地，上述载台是可更换的，可根据不同背板的规格来更换相应的载台，由此大大提高了该组 装装置的适用性。
而压合驱动模块2被布置在旋转平台12的外侧处。当承载有待压合的背板的压合工序定位载台13随着旋转平台12的旋转与压合驱动模块2正对时(如图1中示出那样)。压合驱动模块2可以驱动压合头伸出以对背板进行压合。如在图5A和5B中进一步示出的，该压合驱动模块2例如利用双轴气缸的形式实现。而在该基座5上还设置有限流气压表1，其用于设置压合驱动模块2中的气缸的气压的大小，从而可以实现对压合的压力的调节。
另外，该灯条组装装置还设置有延时继电器9，其是可调节的，可用于调节对背板进行压合的持续时间，从而实现不同的要求。该延时继电器9的调节钮例如设置在底座5的正面的操作面板上，如图7进一步示出的那样。
根据本发明的实施例的灯条组装装置实现了灯条贴合和压合两个工序的整合，减少了传递和等待时间的浪费，并且结构简单，灵活性强，便于维护。
图2示出了根据本发明的实施例的灯条组装装置中的旋转平台的结构示意图。该旋转平台具有旋转基座，该旋转基座例如具有圆盘状。贴合工序定位载台和压合工序定位载台均被设置在该旋转基座上，并且其例如沿着圆周方向被布置。在该旋转基座上优选地标注了其旋转方向，以便于操作员操作。当然，该旋转基座还可以具有除了圆盘之外的其它形状，例如矩形。
图3A示出根据本发明的实施例的灯条组装装置中的贴合工序定位载台4的结构示意图。该载台4用于承载待贴合灯条的背板，因此该载台4具有用于卡合背板的凹槽41。该凹槽41与所述背板的待安装灯条的侧边相匹配，即该侧边可被稳固地卡合在该凹槽41中。该载台4还可具有用于供待安装的灯条中的柔性电路板穿过的凹槽42。另外，该载台4上具有螺孔43，可利用螺丝将该载台4固定在旋转基座上。当然，该载台4还可采用别的固定方式被固定在旋转基座上。
应当认识到，图3A示出的载台4仅仅是一个示例，而针对不同形状和规则的背板，该载台4可以具有其它形状和尺寸。
图3B示出根据本发明的实施例的贴合工序定位载台在承载了背板时的状态示意图。从图3B可看出，背板可以被稳固地卡合在凹槽41中， 从而便于执行贴合操作，即将具有光源的灯条通过双面胶贴合在该侧边处。
图4A示出根据本发明的实施例的灯条组装装置中的压合工序定位载台的结构示意图。该载台6具有与所述贴合有灯条的背板的主体形状匹配的凸台，以便于所述背板被倒扣在所述凸台上。特别是，该载台6的一个侧边(即朝向旋转平台的外侧的侧边)具有用于避让背板上的背光源(例如LED)的缺口61，从而避免在压合期间对背光源造成损坏。该载台6还可设置有孔62，以用于供背板位置检测设备(在下文进一步描述)的光信号穿过，其在下文进一步详细描述。并且该载台6还设置有螺孔63，可利用螺丝将该载台4固定在旋转基座上。当然该载台4还可采用别的固定方式固定在旋转基座上。
应当认识到，图4A示出的载台6仅仅是一个示例，而针对不同形状和规则的背板，该载台6可以具有其它形状和尺寸。
图4B示出根据本发明的实施例的压合工序定位载台在承载了背板时的状态示意图。从图4B可看出，贴合有灯条的背板可以被稳固地倒扣在凸台上，并且其侧边与凸台的四个侧边卡合。另外贴有灯条的侧边与凸台上具有缺口61的侧边对齐，从而使灯条上的光源正好被容纳在缺口61中。将背板倒扣在凸台上可使得这一承载更加稳固，从而利于提高压合操作的稳定性。
从图4B还可看出，被贴合在背板上的灯条所具有的柔性电路板(FPC)从背板中伸出。
图5A示出根据本发明的实施例的灯条组装装置中的压合驱动模块的具体结构图。该压合驱动模块2具有压合头21和气缸22。该压合头21连接到气缸22上的驱动杆，并且具有平坦的正面，以便于对背板的侧边施加压力。而该气缸22优选为双缸气缸。该压合驱动模块无需导轨，制造成本较低。
图5B示出根据本发明的实施例的压合驱动模块在对背板中的灯条进行压合时的状态示意图。从图5B可看出，在进行压合时，气缸的驱动杆伸出以使得压合头压到背板的一侧上，从而向背板贴合有灯条的一侧施加压力。而如上文所述的，通过调节延时继电器9，可以调节压合的持续时间；通过调节限流气压表1，可以调节压力的大小。
由图5B可清楚看出，在进行压合操作时，必须保证承载有背板的 压合工序定位载台6与压合驱动模块对准。图6示出根据本发明的实施例的设置于旋转平台下的部件的布置示意图。由图6可看出，在旋转基座的下方设置了背板位置检测设备和锁定设备。
该背板位置检测设备可利用光电传感器来实现。而在压合工序定位载台以及旋转基座的对应位置上设置有孔以供光电传感器发出的光穿过。而在光电传感器检测到从背板反射回的光的情况下，其可以发出信号以指示检测到承载有背板的压合工序定位载台到达指定位置，从而可以进行压合操作。优选地，该背板位置检测设备可具有两个(例如图6中的传感器14和15)，从而提高检测的精度。
在另一实施例中，该背板位置检测设备可利用金属传感器来实现。该金属传感器在检测到其附近出现利用金属材质制成的背板时，控制旋转平台停止，以便进行压合操作。
另外，在基座下方还设置有旋转驱动设备16和锁定设备17。该旋转驱动设备16例如是旋转气缸。利用该气缸可驱动旋转基座旋转。并且在背板检测设备检测到背板时，该旋转驱动设备16停止驱动旋转基座旋转，并且锁定设备17将旋转基座进行锁定，然后执行上述的压合过程。该旋转驱动设备16也可以利用步进电机来实现。
该锁定设备17例如是气动凸栓。在旋转基座停止旋转，并且将要进行压合操作之前，该气动凸栓弹起，并且插入基座中的孔中，以锁定旋转基座，从而防止旋转基座的运动，保证压合操作的精确性。
图7示出根据本发明的实施例的灯条组装装置的操作面板示意图。从图7以及图1可看出，灯条组装装置的正面设置有操作面板。在该操作面板上布置了电源开关7、手动/自动旋转模式切换开关8、延时继电器调节钮9和手动操作开关10。其中，手动/自动模式切换开关8用于对灯条组装装置的操作模式进行切换。在自动模式中，该组装装置自动控制旋转基座的旋转。而在手动模式中，通过用户操作手动操作开关10来控制旋转基座的旋转。
下文结合图8描述利用本发明的实施例提供的灯条组装装置进行灯条组装的方法。该方法包括以下步骤。
在步骤S1，将背板固定在贴合工序定位载台上并且然后将灯条贴合到所述背板的侧边上。由于贴合工序定位载台的使用，这一步骤是容易操作的并且不易出现误差。该步骤可以在旋转平台停止旋转的时 候进行。
在步骤S2，将贴合有灯条的背板倒扣在压合工序定位载台上，同时使所述背板的贴合有灯条的一侧朝向旋转平台外侧。由于压合工序定位载台的使用，这一步骤是容易操作的。
在步骤S3，使所述旋转平台旋转，直到承载有所述背板的压合工序定位载台与压合驱动模块正对。该旋转可以自动或手动地控制，并且压合工序定位载台与压合驱动模块是否正对可通过上文所述的背板位置检测设备来检测。
在步骤S4，驱动所述压合驱动模块对所述背板上的灯条进行压合操作。优选地，在压合操作时，锁定设备17将旋转基座锁定，以使其固定不动，由此提高了压合的精度，避免由于旋转基座晃动导致背板的损坏。
值得注意的是，虽然上文分步描述了该方法的各个步骤，但是这并不表示这些步骤必须被按照所描述的顺序来执行，这些步骤也可以被同时或以其它顺序执行，例如在灯条组装装置上具有两套以上的定位载台的情况下。并且在流水线操作的情况下，以上步骤循环执行。
以上描述了本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
在本申请的描述中，需要理解的是，术语“上”、“下”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。措词‘包括’并不排除在权利要求未列出的元件或步骤的存在。元件前面的措词‘一’或‘一个’并不排除多个这样的元件的存在。在相互不同从属权利要求中记载某些措施的简单事实不表明这些措施的组合不能被用于改进。在权利要求中的任何参考符号不应当被解释为限制范围。

Claims (15)

  1. 一种灯条组装装置，包括旋转平台和设置在旋转平台的外侧处的压合驱动模块，所述旋转平台设置有用于待贴合灯条的背板的贴合工序定位载台和用于贴合有灯条的背板的压合工序定位载台，所述压合驱动模块被配置用于对贴合在背板上的灯条进行压合操作。
  2. 根据权利要求1所述的灯条组装装置，其中，所述装置具有两个贴合定位载台和两个压合定位载台。
  3. 根据权利要求2所述的灯条组装装置，其中，所述旋转平台具有圆盘状旋转基座，并且所述贴合定位载台和所述压合定位载台沿着圆周方向被布置在所述基座的表面上。
  4. 根据权利要求1所述的灯条组装装置，其中，所述贴合定位载台具有与所述背板的待安装灯条的侧边匹配的凹槽。
  5. 根据权利要求1所述的灯条组装装置，其中，所述压合定位载台具有与所述贴合有灯条的背板的主体形状匹配的凸台，以便于所述背板被倒扣在所述凸台上。
  6. 根据权利要求5所述的灯条组装装置，其中，所述凸台上朝向所述旋转平台的外围的一侧具有用于避让所述灯条上的光源的缺口。
  7. 根据权利要求1到6中的任一项所述的灯条组装装置，其中，在所述旋转平台下面设置有用于对所述旋转平台进行锁定的锁定设备。
  8. 根据权利要求7所述的灯条组装装置，其中所述锁定设备是气动凸栓，并且所述旋转平台具有供所述气动凸栓插入的孔。
  9. 根据权利要求3所述的灯条组装装置，其中，所述旋转基座下设置有背板位置检测设备。
  10. 根据权利要求9所述的灯条组装装置，其中，所述背板位置检测设备利用光电传感器或金属传感器来实施。
  11. 根据权利要求1所述的灯条组装装置，其中，所述压合驱动模块由双轴气缸和压合头构成。
  12. 根据权利要求1所述的灯条组装装置，还包括用于所述压合驱动模块的限流气压表。
  13. 根据权利要求1所述的灯条组装装置，还包括用于所述旋转平台的手动/自动旋转模式的切换开关。
  14. 根据权利要求1所述的灯条组装装置，其中，所述贴合工序定位载台和所述压合工序定位载台是可更换的。
  15. 一种利用权利要求1到14中的任一项所述的灯条组装装置进行灯条组装的方法，包括以下步骤：
    将背板固定在贴合工序定位载台上并且将灯条贴合到所述背板的侧边上；
    将贴合有灯条的背板倒扣在压合工序定位载台上，同时使所述背板的贴合有灯条的一侧朝向旋转平台外侧；
    使所述旋转平台旋转，直到承载有所述背板的压合工序定位载台与压合驱动模块正对；以及
    驱动所述压合驱动模块对所述背板上的灯条进行压合操作。
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