WO2010113288A1

WO2010113288A1 - Assembling device for display

Info

Publication number: WO2010113288A1
Application number: PCT/JP2009/056738
Authority: WO
Inventors: 宏樹田本; 仁啓谷口
Original assignee: シャープ株式会社
Priority date: 2009-03-31
Filing date: 2009-03-31
Publication date: 2010-10-07
Also published as: CN101933067A; CN101933067B

Abstract

Disclosed is an assembling device of a simple structure for assembling, for example, a liquid crystal panel and a backlight unit. In order to attain assembling work with a high accuracy and quickly, the backlight unit (1) is pressed by compression springs (4) for positioning and holding the panel (5), and in such a state, the panel (5) is fitted into the recess of the backlight unit (1) and fixed.

Description

Display device assembly equipment

The present invention relates to an assembling apparatus for a display device that performs assembly processing such as fitting, pressurizing, and fixing a display element into a recessed portion of a lighting device or a casing in assembling a liquid crystal display device or the like.

The background of the progress of thinning and miniaturization of portable devices is the individualization such as thinning of lighting devices, thinning of housings, and adoption of FPC to minimize the space for routing signal and power lines. There are contrivances such as making the display area thin as much as possible and increasing the display area in the housing area as much as possible by narrowing the frame of the display element.
FIG. 15 shows a cross-sectional structure of a typical display device. The display device shown in FIG. 15 includes an illumination device 50, a metal housing (bezel) 51, a display element 52, a polarizing plate 53, an FPC 54, and a driving IC 55.
A typical assembly process of the display device (liquid crystal module) is configured as follows, for example.
(1) A process of attaching a polarizing plate to a display element (liquid crystal panel) (2) A process of mounting a driving semiconductor device (driver IC) on the display element (3) Supplying external input / output signals and power to the display element (4) The step of incorporating the display element into the recess of the lighting device (backlight unit) (5) The flexible substrate is mounted on the back side of the display surface Step of folding and fixing (6) Step of attaching a metal casing to complete a display device Conventionally, as a method of performing assembly processing such as fitting by disposing two spaced apart members using positioning means, each member There is a method of grasping the position of the image by the image recognition means and positioning it. Positioning by image recognition is also common in the assembly process of liquid crystal display devices, but replacement with methods that do not use image recognition is progressing to reduce manufacturing costs, and positioning using the outer shape of members as an alternative means A method is being considered. However, as the mobile devices become thinner and smaller, the liquid crystal display device is designed so that the gap between the recess of the liquid crystal panel and the backlight unit (hereinafter referred to as B / L unit) is as small as possible. When assembling non-members, there is a problem that the members may interfere with each other at the time of assembling depending on the error of the member or the assembling process error, and the member may be damaged. Therefore, according to the prior art disclosed in Japanese Patent Application Laid-Open No. 9-273661 and Japanese Patent Application Laid-Open No. 8-85089 below, the assembling member is a means for freely moving in the assembling plane, Means for automatically correcting the relative position by a tapered shape formed on the outer peripheral portion of the member when there is a shift in position is described.
Specifically, as shown in a cross-sectional view of the assembling apparatus of FIG. 16A from the side and a cross-sectional view of the assembling apparatus of FIG. 16B viewed from above, one end of the positioning body 40 is attached to the upper plate of the movable frame 48. It is supported from both sides by two fixed support pillars 44. Each of the support pillars 44 has ball joints 43 at two locations, and the support pillars 44 are configured to freely follow the movement of the positioning body 40. On the four side walls of the movable frame 48, springs 47 are provided for pressing and centering the positioning body 40 supported by the support pillars 44 from four directions. Each spring 47 presses the positioning body 40 via the

telescopic cylinders

45 and 46. The positioning body 40 has guide plates 42 facing each other, and tapered surfaces 49 are formed on both sides of the tip, and the position of the positioning body 40 is determined by hitting the outer shape of the flange portion 41. The movement is corrected (for example, see Japanese Patent Laid-Open No. 9-273661).
In another prior art, as shown in FIG. 17, the floating unit 20 includes an X-axis linear guide 27 that is movable in the X-axis direction within a horizontal plane, and a Y-axis that is connected to the X-axis linear guide 27 and connected to the X-axis linear guide 27. An axially movable Y-axis linear guide 24 and an X-axis linear guide 27 and a tension spring 32 for positioning the Y-axis linear guide 24 at a neutral point are configured to move and correct the position of the insertion member 38. (For example, see JP-A-8-85089).
However, in each of the prior arts described above, in order to freely move the assembling member held on the transfer machine side within the assembling surface, the prior art disclosed in Japanese Patent Application Laid-Open No. 9-273661 discloses a holding means via a ball joint. It is necessary to hold the member. Further, the prior art disclosed in Japanese Patent Laid-Open No. 8-85089 requires means for stacking two axes of an X-axis linear guide and a Y-axis linear guide, both of which have complicated floating means for holding members. Increases in size. In addition, this increases the inertial mass and lowers the positioning accuracy when the transfer machine is turned on. Therefore, it is necessary to increase the taper-shaped dimensions for absorbing positioning errors, like the B / L unit. It is difficult to apply to a member having a narrow side wall.
In addition, in order to ensure the positioning accuracy on the transfer machine side, even when the floating means of the prior art is applied to the built-in member instead of the built-in member, the positioning accuracy on the transfer machine side is improved, but the built-in Since the inertial mass of the working member increases, the moving acceleration of the member that avoids interference during assembly is reduced. Therefore, it can be applied to assembling a member having a long processing tact, but when high-speed processing is required, it is necessary to reduce the inertial mass of the floating means itself.

An object of the present invention is to provide an assembling apparatus that can perform high-precision and high-speed assembly processing with a simple configuration with respect to members such as a liquid crystal panel and a B / L unit because the inertial mass of the floating means can be reduced. It is to be.
The present invention is an assembling apparatus for manufacturing a liquid crystal display device by holding a display element and incorporating the display element into the recessed portion of a lighting device or a display element housing having a recessed portion,
Elastic holding means for pressing and holding the lighting device or the display device housing simultaneously with positioning;
Suction means for holding the display element after positioning;
A transfer unit for transferring the display element held by the suction means to the illumination device or the display element housing;
An assembling apparatus comprising: a pressing unit that incorporates the display element into a recess of the lighting device or the display element housing.
According to the present invention, the floating means for moving and correcting the position of the member is provided on the member to be assembled, so that the inertial mass of the transfer machine is reduced and the positioning accuracy of the transfer machine is improved. Since the gap between the members such as the B / L unit is small, it is possible to incorporate the members that do not easily secure the tapered region.
In addition, the floating means of the present invention has a simple configuration in which the member can be positioned and held at the same time using the elastic holding means, and the member can be moved and corrected. Therefore, since the inertial mass of the floating means can be reduced, high-accuracy and high-speed assembly processing can be performed with a simple configuration for members such as a liquid crystal panel and a B / L unit.
In the assembling apparatus of the present invention, the elastic holding means that presses and holds the lighting device or the display element housing simultaneously with positioning includes a plurality of compression springs that press the side surface of the lighting device and center the lighting device. It is characterized by being configured.
According to the present invention, since the member to be assembled is centered by the compression spring, when the member to be assembled interferes with the member to be assembled, the position can be freely corrected and assembled in the assembling plane.
Furthermore, the present invention is an assembling apparatus that manufactures a display device by holding a display element and incorporating the display element into the recessed portion of a lighting device or a display element housing having a recessed portion,
The lighting device or the display element housing has a positioning guide against which a side surface is pressed, and the lighting device or the display element housing is positioned by pressing the side surface of the lighting device or the display element housing against the positioning guide. Elastic holding means for pressing and holding at the same time;
Suction means for holding the display element after positioning;
A transfer unit for transferring the display element held by the suction means directly above the recess of the illumination device or the display element housing;
A pressurizing part that incorporates the display element into the recess of the illumination device or the display element housing,
In the positional relationship in which the lighting device or display element housing held by the elastic holding means and the display element held by the suction means are projected onto an installation plane, the lighting device or display element housing and display When the reference sides of the elements are pressed against the respective positioning guides, the display elements are assembled in the recesses of the illumination device with a predetermined interval therebetween.
According to the present invention, the members on the reference side do not interfere with each other, and on the opposite side, if the size of the liquid crystal panel is too large or the size of the B / L unit recess is too small, the members are Even when there is interference, the B / L unit slightly moves in the direction in which the elastic holding means for positioning and holding the B / L unit is pushed, so that the interference between members can be eliminated, resulting in poor assembly and damage. Absent. Further, there is no need for means for allowing the B / L unit to move freely within the assembling plane, and the structure is simple because it is composed of only the positioning guide and the pressing means from one direction. Therefore, the inertial mass of the floating means can be reduced, and even when the members interfere with each other, the to-be-assembled member instantaneously moves and corrects to enable high-speed assembly.
Furthermore, the present invention is characterized in that the elastic holding means is constituted by a compression spring, and presses and holds the lighting device or the display element housing against a guide with a predetermined deflection amount.
According to the present invention, the pressing force calculated from the spring constant of the spring to be used and the amount of deflection can be applied to the B / L unit. By setting the predetermined deflection amount, the B / L unit can be positioned on the positioning guide. Further, by setting the pressing force so as not to prevent the movement of the B / L unit in the direction of canceling the interference, it is possible to avoid the occurrence of an assembly failure even when the members interfere with each other.

Objects, features, and advantages of the present invention will become more apparent from the following detailed description and drawings.
It is a perspective view which shows the assembly apparatus of one Embodiment of this invention. It is a top view of the assembly apparatus shown in FIG. It is a side view of the assembly apparatus shown in FIG. It is a top view which shows embodiment of the floating means of a structure different from FIG. 2A and 2B. It is a side view of the floating means of the structure different from FIG. 2A and 2B. It is a side view which shows the state before the panel 5 is integrated in the B / L unit 1. FIG. It is a side view which shows the state in which the panel 5 was integrated in the B / L unit 1. FIG. FIG. 5 is a plan view showing a state in which the panel 5 is positioned on the B / L unit 1 by the compression spring 4. FIG. 6 is a plan view showing a state in which the panel 5 is positioned by the positioning pins 7 and the movable pins 8. It is a top view in the state where the B / L unit 1 and the panel 5 which were positioned by the positioning means were arranged oppositely just before the assembly. It is an enlarged plan view of a reference corner portion. It is a side view which shows the state by which the B / L unit 1 and the panel 5 were opposingly arranged. FIG. 4 is a side view showing a state where the lowered panel 5 has reached the B / L unit 1 assembly surface. 6 is a side view showing a state immediately after the end surface of the panel 5 interferes with the tapered portion 1b of the wall surface of the B / L unit 1. FIG. It is a side view which shows the state of the display apparatus after completion of integration. It is a figure which shows the case where the dimension B1 of the taper part 1b is smaller than the position error A of the panel 5. FIG. It is a figure which shows the case where the dimension B2 of the taper part 1b is larger than the position error A of the panel 5. FIG. It is a figure which shows the whole structure of a panel-B / L unit assembly apparatus, and the flow of the member used as an assembly object. It is a time chart for demonstrating operation | movement of an assembly apparatus. It is a flowchart for demonstrating operation | movement of an assembly apparatus. It is a figure which shows schematic structure of the assembly apparatus of the 1st Embodiment of this invention. It is a figure which shows schematic structure of the assembly apparatus of other embodiment of this invention. It is a figure which shows the cross-section of a typical display apparatus. It is sectional drawing which looked at the assembly apparatus of a prior art from the side. It is sectional drawing which looked at the assembly apparatus of a prior art from upper direction. It is a disassembled perspective view which shows the assembly apparatus of another prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Backlight unit 1a Convex part 1b Chamfer part 3 Positioning block 4 Compression spring 5 Panel 7 Positioning pin 8 Movable pin 9 Panel holding stage 10 Mounting stage 11 Index table 12 Pressure plate 13 Panel transfer machine 14 Lifting means 15 Base

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
Embodiments of a display device manufacturing apparatus according to the present invention will be described below. FIG. 1 is a perspective view for explaining an assembling apparatus according to an embodiment of the present invention, and shows a state in which a backlight unit (hereinafter referred to as a B / L unit) 1 and a panel 5 are assembled. In the present embodiment, a panel 5 corresponding to a built-in member is sucked and held after positioning by a suction hand of a transfer machine (not shown), and a B / L unit corresponding to a built-in member placed on the placement stage 10. Move it directly above 1 and install it. In this embodiment, as shown in the plan view of FIG. 2A and the side view of FIG. 2B, the side surface of the B / L unit 1 is pressed from four directions by a compression spring 4 as an elastic holding means such as a compression spring or a plunger. Thus, the member is held simultaneously with the centering. A chamfered portion (not shown) is formed on the entire circumference of the side wall of the B / L unit 1, and when interference occurs with the B / L unit 1 when the panel 5 is assembled, When the component force acts, the B / L unit 1 can be assembled by moving and correcting the position freely in the assembly plane.
It is sufficient that the pressing force of the compression spring 4 is slightly larger than the maximum static friction coefficient between the B / L unit 1 and the mounting stage 10, and the assembly can be performed with a small load. On the contrary, when the pressing force of the compression spring 4 is too large, the movement correction of the B / L unit 1 is hindered, which is not suitable.
Next, FIGS. 3A and 3B are views showing an embodiment of the floating means different from FIGS. 2A and 2B, FIG. 3A is a plan view of the floating means, and FIG. 3B is a side view of the floating means. 4A is a side view showing a state before the panel 5 is assembled into the B / L unit 1, and FIG. 4B is a side view showing a state where the panel 5 is incorporated into the B / L unit 1. The mounting stage 10 of the B / L unit 1 is connected and held to the base 15 by a compression spring 4 disposed in a direction perpendicular to the assembly plane. The compression spring 4 is composed of three compression coil springs, and can freely move and correct within the built-in plane, and can follow the movement in which the mounting stage 10 freely tilts.
Therefore, as shown in FIG. 4A, even when the panel 5 is inserted with an inclination, the B / L unit 1 can be incorporated as shown in FIG. The built-in pressure is uniformly applied to both. However, since the present embodiment serves as a means for correcting the movement of the mounting stage 10 holding the B / L unit 1, the inertial mass of the movement correcting means can be reduced unless the mounting stage 10 is lightweight. Therefore, it is not suitable for high-speed embedded processing.
5A and 5B show a method for positioning the B / L unit 1 and the panel 5 on the basis of the outer shape, and FIG. 5A is a plan view showing a state in which the panel 5 is positioned on the B / L unit 1 by the compression spring 4. FIG. 5B is a plan view showing a state in which the panel 5 is positioned by the positioning pins 7 and the movable pins 8. The B / L unit 1 has a convex portion 1a serving as a position reference on the outer periphery thereof, and positioning is performed by positioning the convex portion 1a on a reference block 3 serving as a positioning reference. At this time, a compression spring 4 which is an elastic holding means is arranged on the opposite side to the corner portion where the positioning block 3 is disposed, and the B / L unit 1 is pushed out diagonally by the compression spring 4 so that the B / L The convex portions 1a formed on the two sides of the L unit 1 are positioned on the positioning block 3, and are held simultaneously with the positioning. In the drawing, the compression springs 4 are arranged at two locations on the opposite side of the positioning block 3, but only one location may be disposed at the corner portion and pushed in the diagonal direction. Further, when there is no protrusion 1a serving as a position reference on the outer periphery of the B / L unit 1, the positioning block 3 may be replaced with a pin, and the B / L unit 1 can be positioned based on the outer shape.
On the other hand, the positioning means of the panel 5 includes a positioning pin 7 disposed on the reference side and a movable pin 8 disposed on the opposite side, and the panel 5 is supplied with the movable pin 8 in an open state, and the supply is completed. Later, the movable pin 8 is closed, so that the positioning pin 7 is positioned. After positioning, the panel 5 is sucked and held, and the positioning pins 7 and the movable pins 8 are retracted downward from the panel mounting surface so that they do not interfere with the B / L unit 1 when assembled, and the holding state before assembly is completed. To do.
FIG. 6 is a plan view for explaining a state in which the B / L unit 1 and the panel 5 positioned by the positioning means are arranged to face each other immediately before assembly. Here, the B / L unit 1 is positioned and held on the positioning block 3 by the compression spring 4, and the panel is arranged oppositely on the B / L unit 1 while being sucked and held by a conveying means such as an XY orthogonal stage or a SCARA robot. Is done. In this case, the relative positions obtained by projecting the positions of the B / L unit 1 and the panel 5 onto the built-in plane have a relationship in which the reference sides on which the two are positioned are arranged at a predetermined interval.
The set value of the predetermined interval will be described in detail with reference to an enlarged plan view of the reference corner portion of FIG. In the figure, L1 is the inner wall thickness of the B / L unit, and corresponds to the distance from the tip of the convex portion 1a of the B / L unit 1 to the end face of the B / L inner wall. In the figure, L2 is the distance from the positioning block 3 with which the tip of the convex portion 1a of the B / L unit 1 abuts to the outer edge of the panel 5. In the drawing, L3 is the distance between the B / L unit inner wall end face and the panel outer end face, and corresponds to the difference between the dimension L2 and the dimension L1. Here, the set value of the predetermined interval described above is derived from conditions for preventing the inner wall of the B / L unit 1 and the outer shape of the panel 5 from interfering with each other regardless of an error factor of the relative position between them.
The error factors consist of three factors: (1) accuracy of the member positioning means, (2) positioning accuracy of the panel transport means, and (3) thickness tolerance of the side wall of the B / L unit 1, and each error factor is a mechanism system It is defined by the specification value and the dimensional standard of the member. That is, if the clearance L1, which is the distance between the inner wall end face of the B / L unit 1 and the panel outer end face, is set to be equal to or greater than the cumulative error of the above three factors, The inner wall of the L unit 1 and the panel outer shape do not interfere with each other on the reference side side. In this embodiment, it is a precondition that the positioned reference sides do not interfere with each other, and an interval necessary for the calculation is calculated from three factors that cause an error, and is set as a predetermined interval. As a means for adjusting the relative position between the two to be a set value, the positioning pin 7 of the panel 5 can be adjusted by a fine movement means such as a built-in micrometer head or a scaled feed screw.
Next, the behavior when the panel-B / L unit is assembled in this embodiment will be described with reference to the side views of FIGS. 8A and 8B. FIG. 8A shows a state in which the B / L unit 1 and the panel 5 are arranged to face each other, and the B / L unit 1 is positioned and held by the positioning guide 3 by the compression spring 4. On the upper part of the B / L unit 1, a panel 5 that is attracted and fixed to the panel holding stage 9 is disposed oppositely. As described above, the positioning guide side has a positional relationship such that the B / L unit inner wall and the panel outer shape do not interfere with each other by maintaining a predetermined distance. Moves down in the axial direction and starts the assembling operation.
FIG. 8B is a side view showing a state in which the lowered panel 5 has reached the assembling surface of the B / L unit 1. Due to the dimensional relationship between the outer dimensions of the panel and the inner dimensions of the B / L unit, interference occurs between the end of the panel 5 and the side wall of the B / L unit 1 on the opposite side of the reference side. The figure shows a state in which the end face of the panel 5 overlaps the side wall of the B / L unit 1 when the outer dimension of the panel is larger than the design dimension and the inner dimension of the B / L unit 1 is smaller than the design dimension.
FIG. 8C is a side view showing a state immediately after the end surface of the overlapped panel 5 interferes with the chamfered portion 1 b of the wall surface of the B / L unit 1. In the figure, the arrow X indicates the direction in which the compression spring 4 pushes the B / L unit 1, and the arrow -X indicates the direction in which the compression spring 4 is pushed, that is, the direction in which the B / L unit 1 cancels interference. When the end surface of the panel 5 comes into contact with the chamfered portion 1b formed on the wall surface of the B / L unit 1, the B / L unit 1 slightly moves in the -X direction due to the component force of the applied force acting in the horizontal direction of the assembly plane. At the same time, the panel 5 is assembled inside the side wall of the B / L unit 1. Therefore, the pressing force of the compression spring 4 is larger than the maximum frictional static force between the B / L unit 1 and the mounting stage 10 and is applied to avoid interference between the B / L unit 1 and the panel 5 during installation. It needs to be smaller than the pressure component. In the present embodiment, a favorable assembling result was obtained by setting the pressing range of the compression spring 4 to 30 to 150 gf with respect to the assembling load of 10 kgf.
FIG. 8D is a side view showing the state of the display device after completion of the assembly. The display device is positioned and held on the positioning guide 3 by the compression spring 4 again by releasing the pressurization and suction holding on the panel 5. Finally, the compression spring 4 is opened and carried out as a display device to the next process.
Next, details of the chamfered portion 1b formed on the side wall of the B / L unit will be described with reference to FIGS. 9A and 9B. 9A is a diagram illustrating a case where the dimension B1 of the chamfered portion 1b is smaller than the position error A of the panel 5. FIG. The position error of the panel 5 is determined by the accumulation of the panel outer dimension tolerance and the built-in accuracy, and is defined by the member tolerance and the specification value of the transfer means. Therefore, when the panel 5 having a size larger than the design value is inserted or when the positioning error of the transfer machine is large, the interference cannot be eliminated, and an assembly failure occurs.
On the other hand, FIG. 9B shows a case where the dimension B2 of the chamfered portion 1b is larger than the position error A of the panel 5. In this case, regardless of the size of the panel 5 to be inserted and the positioning accuracy of the transfer machine, the B / L unit 1 exerts a force component in the direction to eliminate the interference with the panel 5 and normal assembly processing is performed. Yes. That is, how much the position can be corrected depends on the dimension of the chamfered portion, and the chamfered dimension may be designed according to the member tolerance and the specification value of the transfer means. Since the built-in device positions the panel 5 and the B / L unit 1 on the basis of the external shape, the positioning accuracy is improved as compared with the positioning method using centering.
Further, in order to increase the movement correction amount, the same effect can be obtained not only in such chamfering but also in corner R machining.
In general, the main member of the B / L unit is often made of plastic, and even if the chamfered portion as described above is not formed on the side wall of the B / L unit 1, natural corners formed at the time of molding are formed. It is also possible to avoid interference by roundness (corner R).
FIG. 10 shows the entire configuration of the display device assembly apparatus and the flow of members to be assembled. The index table 11 rotates counterclockwise every 90 °, and the following processing is performed at each step. First, the B / L unit 1 is inserted from the 0 o'clock direction (P1). The loaded B / L unit 1 is positioned on the index table 11 and then positioned and held on the guide block by elastic holding means (not shown). Next, the index table 11 is rotated by 90 ° (P2), and the panel 5 positioned from the 9 o'clock direction is loaded by a transfer machine (not shown) (P3). After the panel 5 is disposed so as to face the B / L unit 1 directly above, a transfer machine (not shown) is lowered in the Z-axis direction and assembled into the B / L unit 1.
Note that the B / L unit 1 and the panel 5 are fixed by, for example, a double-sided tape (not shown) attached in advance to the B / L unit.
Next, the index table 11 is rotated by 90 ° (P4), and the pressure plate 12 installed immediately above the display device is lowered at a position of 6 o'clock to apply a certain load to the display device (P5). . The pressurizing operation here is an additional pressurizing means for ensuring the incorporation of the panel 5 and the B / L unit 1, and the initial pressurizing is performed in the operation P3. Next, the index table 11 is rotated by 90 ° (P6), the display device is unlocked at the 3 o'clock position, and is carried out by a transfer machine (not shown) (P7).
FIG. 11 is a time chart for explaining the operation of the assembling apparatus, and FIG. 12 is a flowchart for explaining the operation of the assembling apparatus. As shown in FIG. 11, by using the index table 11, each process can be performed in parallel, and a liquid crystal panel can be manufactured efficiently.
That is, first, the first set of B / L units is inserted at timing T10 (step S1), and positioning and fixing are simultaneously performed on the B / L units inserted at timing T11 (step S2). Next, the index table 11 rotates at timing T12 (step S3), and during this period, positioning is performed in parallel with respect to the first set of panels 5 at timing T13. Then, the positioned B / L unit 1 is sucked and held by the transfer machine (step S4), the panel is inserted at timing T14 and assembled (step S4), and in parallel at timing T20. The second set of B / L unit 1 is inserted. Subsequently, the index table 11 is rotated at timing T15 (step S6), and the second panel 5 is positioned in parallel at timing T23. Subsequently, the first set of display devices is pressurized at timing T16 (step S7), and the second set of B / L unit 1 and the panel 5 are assembled at timing T24. Furthermore, the index table 11 rotates at timing T17 (step S8), and the first display device is carried out at timing T18, and the processing of the first set of display devices is completed.
In parallel with the timing T18, the second set of display devices is pressurized at the timing T26, the index table is subsequently rotated at the timing T27, and the second set of display devices is carried out at the timing T28 (step S9). .
In this way, the index table 11 rotates at regular intervals (step S10), so that the liquid crystal member mounted on the index table 11 flows continuously, and the B / L unit installed around the index table 11 The loading / unloading machine, the panel loading / unloading machine, the pressure plate, and the unloading / transferring machine of the display device repeat the same operation in synchronization with the rotation of the index table 11.
Therefore, since each component part can work in parallel, it is possible to minimize the standby time, and to efficiently assemble the display device.
In addition, assembling using the index table 11 is performed immediately after the index table 11 rotates at the timing T12, and the panel is inserted at the timing T14 and incorporated into the B / L unit 1.
According to such an assembling apparatus, the floating means for holding the B / L unit can be realized with a simple configuration capable of holding the member simultaneously with positioning and correcting movement. Therefore, even when the member to be assembled is placed on the index table 11 and the member to be assembled is moved before and after assembling, the inertial mass of the floating means is reduced, so that the positioning accuracy is improved and the static is improved. The fixed time can be shortened. Therefore, high-precision and high-speed incorporation processing can be enabled.
FIG. 13 is a diagram showing a schematic configuration of the assembling apparatus according to the first embodiment of the present invention, and shows an apparatus in which the panel transfer machine is directly incorporated into the B / L unit 1. In this case, the panel 5 is positioned at another location, and the panel loading / unloading machine 13 sucks and holds the positioned panel 5 and performs an assembling process on the B / L unit 1.
FIG. 14 is a diagram showing a schematic configuration of an assembling apparatus according to another embodiment of the present invention, and shows an apparatus in which the panel transfer machine and the assembling apparatus are separated. The panel transfer machine 13 inputs the panel to the panel holding stage 9 from a panel supply position (not shown) of the panel 5. The

panel holding stages

9 and 10 that hold the panel 5 and the B / L unit 1 can be assembled by the lifting means 14 such as an air cylinder while maintaining the relative position of the panel 5 and the panel 5 After being sucked and held by the panel holding stage 9, the lifting / lowering means operates to be incorporated into the B / L unit 1. In this embodiment, since assembling is performed via the lifting means, higher assembling accuracy can be obtained compared to the first embodiment, and the required dimensions of the chamfered portion can be suppressed.
Although the above embodiment has been described by using a liquid crystal display device as an example, the present invention is applicable regardless of the type of the display device. For example, in the case of an organic EL display device, since it is a self-luminous display device, an illuminating device is not required, but the organic EL panel is fitted into a concave portion of the housing, pressed, fixed, and the like. Is common to liquid crystal display devices. Therefore, for example, it can be applied when assembling a flat display element and a box-shaped housing.
As described above, according to the assembling apparatus according to the present invention, the floating means for moving and correcting the position of the member is provided on the member to be assembled side, so that the inertial mass of the transfer machine is reduced and the transfer machine is positioned. Accuracy is improved. Therefore, highly accurate assembly processing is possible regardless of the design dimensions of each member. In addition to the above configuration, the floating means has a simple configuration in which positioning and member holding are simultaneously performed using an elastic body and the member can be moved and corrected. Therefore, since the inertial mass of the floating means can be reduced, high-precision and high-speed assembly processing can be performed on members such as a liquid crystal panel and a B / L unit even with an apparatus having a simple configuration. This makes it possible to incorporate a liquid crystal panel and a B / L unit with high accuracy and high speed according to the external shape reference of the member without using an alignment method based on image recognition even in the assembly process of the liquid crystal display device. It is the best method to realize.
The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all respects, and the scope of the present invention is shown in the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the scope of the claims are within the scope of the present invention.

Claims

An assembly device for manufacturing a display device by holding a display element and incorporating the display element into the recess of the illumination device having a recess or the display element housing,
Elastic holding means for pressing and holding the lighting device or the display element housing simultaneously with positioning; and
Suction means for holding the display element after positioning;
A transfer unit for transferring the display element held by the suction means to the illumination device or the display element housing;
An assembly apparatus for a display device, comprising: a pressing unit that incorporates the display element into a recess of the illumination device or the display element housing.
The display device assembly according to claim 1, wherein the elastic holding unit includes a plurality of compression springs that press the side surface of the lighting device or the display element housing to center the lighting device. apparatus.
An assembly device for manufacturing a display device by holding a display element and incorporating the display element into the recess of the illumination device having a recess or the display element housing,
The lighting device or the display element housing has a guide that is pressed against a side surface of the lighting device or the display element housing, and the lighting device or the display element housing is pressed against the guide to position the lighting device or the display element housing. Elastic holding means for pressing and holding at the same time;
Suction means for holding the display element after positioning;
A transfer unit for transferring the display element held by the suction means to the illumination device or the display element housing;
A pressurizing part that incorporates the display element into the recess of the illumination device or the display element housing,
In the positional relationship in which the lighting device or display element housing held by the elastic holding means and the display element held by the suction means are projected onto an installation plane, the lighting device or display element housing and display An assembly apparatus for a display device, wherein the display element is incorporated into a recess of the illumination device in a state where a reference end pressed against the guide of the element is kept at a predetermined interval.
4. The display device assembly apparatus according to claim 3, wherein the elastic holding means is constituted by a compression spring, and presses and holds the illumination device or the display element housing against the guide with a predetermined deflection amount.