TWI507774B - Assembly method for display module and assembly station for display module - Google Patents

Description

Display module assembly method and display module assembly station

The invention relates to a method and an assembly device for assembling a display module, in particular to a display module assembly method using image recognition and an integrated display module assembly device.

Generally, the liquid crystal display module mainly comprises two parts: one is a backlight module, and the other is a panel module. The assembly process of the general backlight module and the assembly process of the panel module are separated into two different assembly processes. The assembly process of the backlight module is mainly manual assembly, and there are also automatic assembly of the equipment. However, the assembly of the backlight module and the panel module is mostly based on manual assembly. Due to the difference in the operating characteristics of individual operators, the assembly quality of the manually assembled liquid crystal display modules is different, and the product variation is large. Moreover, after a long period of work, the operator's distraction and fatigue worsen product variation and seriously affect product yield. In addition, the operator needs a relatively large working space, and the dust-free control in the working space is not easy, which also affects the product yield.

In view of the problems in the prior art, one of the objects of the present invention is to provide a display module assembly method for determining the outline of the backlight module by using the image of the backlight module, thereby accurately assembling a panel to the backlight. On the module.

The display module assembly method of the present invention comprises the following steps: providing a backlight module, The backlight module has a connection space; obliquely projecting a plurality of parallel lines on the backlight module; capturing the connection space of the backlight module and an image of the parallel line; in the image, determining the A parallel line forms a position of the gap at the edge of the joint space; a panel is provided; and the panel is assembled to the joint space according to the determined position. Therefore, the assembly method uses a parallel line projection onto the backlight module to generate a gap image to determine the geometric information of the connection space, thereby accurately assembling the panel to the backlight module, for example, using a robot arm. Helps automate assembly.

The display module assembly method of the present invention comprises the following steps: providing a backlight module, wherein the backlight module comprises a light guide plate, a structural frame for fixing the light guide plate, and a double-sided attached to the structure frame The tape, the structural frame and the light guide plate together form an interface space; an image of the double-sided tape of the backlight module is captured; in the image, the position of the double-sided tape is determined; a panel is provided; The determined position assembles the panel to the docking space and causes the double-sided tape to adhere to the panel. Therefore, the assembly method utilizes the dark double-sided tape to generate the image recognition effect, thereby judging the geometric information of the connection space, thereby accurately assembling the panel to the backlight module, and also facilitating automated assembly.

Another object of the present invention is to provide a display module assembly station that utilizes the display module assembly method of the present invention and has an integrated assembly environment to accurately and cleanly assemble the panel and the backlight module.

The display module assembly station of the present invention comprises an isolation chamber, a rotating stage and a panel Assembly mechanism. The isolation chamber has a first window and a second window. The rotating stage is rotatably disposed in the isolation chamber and has a plurality of processing positions, the plurality of processing positions including a starting position and a panel assembly position, wherein a backlight module can enter the isolation room via the first window A panel can be placed on the rotating stage, and a panel can enter the isolation chamber through the second window to be assembled to the backlight module carried on the rotating stage. The panel assembly mechanism includes an image capturing device, a robot arm, a projection device, and a control module electrically connected to the image capturing device and the robot arm, the projection device for obliquely projecting a plurality of parallel lines In the backlight module, the backlight module has a connection space, and the control module captures the image according to the backlight module by using the image capturing device, and the captured image includes the connection space of the backlight module And the image of the parallel line, the control module determines that the parallel line of the image forms a position of the gap at the edge of the joint space, and controls the movement of the robot arm according to the determined position to assemble the panel to the Connect the space. Therefore, the assembly station utilizes a rotating working line to reduce the space required by the assembly station, and uses image recognition to obtain contour information of the backlight module, which helps the robot arm to accurately align the panel to set the backlight. On the module, automated assembly is possible. In addition, in practice, the isolation chamber can be a clean room, which also helps to control the dust-freeness of the assembly environment.

Compared with the prior art, the display module assembly method of the present invention determines the outline of the backlight module by using the image of the backlight module, and can accurately assemble a panel to the backlight module, thereby effectively reducing or eliminating Manual manipulation creates problems with excessive product variation and also helps automate assembly. In addition, the display module assembly station of the present invention utilizes a single The isolation chamber with the rotating working line can reduce the required working space and help to control the dust-free degree of the isolation chamber, effectively suppressing the prior art, which is caused by the dust-free control of the working space and the product yield is not easy. Impact.

The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a flowchart of a method for assembling a display module according to a preferred embodiment of the present invention, and FIG. 2 is a backlight module for assembling the display module. A schematic view of the group 2 and a panel 3, wherein the detailed structure of the backlight module 2 and the connecting lines around the panel 3 are not shown in the drawings for convenience of explanation. The display module assembly method mainly uses the optical image to analyze the relevant contour information of the backlight module 2, so as to accurately assemble the panel 3 onto the backlight module 2, and the implementation details thereof will be described later.

In this embodiment, the display module assembly method first provides a backlight module 2, as shown in step S100. The backlight module 2 includes a light guide plate 22 and a structural frame 24 of the fixed light guide plate 22. The structural frame 24 and the light guide plate 22 together form an interface space 26 for accommodating the panel 3. It should be noted that, in practice, a plurality of optical films are attached to the light guide plate 22. For convenience of description, the invention is not particularly limited, but the invention is not limited thereto. Then, the display module assembly method obliquely projects a plurality of parallel lines 28 on the backlight module 2, as shown in step S120; and captures an image 40 of the connection space 26 and the parallel line 28 of the backlight module 2, In step S140. image 40, as shown in FIG. 3, for ease of explanation, the components of the components and their structural features in the image 40 are still labeled with the same component symbols. Next, the display module assembly method is used in the image 40 to determine the position at which the parallel line 28 forms the gap 282 at the edge 26a of the engagement space 26 (shown in FIG. 3 as a dashed circle), as by step S160.

In addition, in practice, in order to make the parallel lines 28 easy to recognize in the image, the parallel lines 28 are not parallel to the contour of the structural frame 24, especially the inner edge of the structural frame 24 (ie, the edge 26a of the engaging space 26). ), but the invention is not limited thereto. In addition, the oblique projection refers to an oblique state when the light is projected on the backlight module 2, but is not limited to the oblique direction of the light source. For example, since the light source is irradiated with radiation, even if the direction of the light source is perpendicular to the backlight module 2, most of the light that is incident on the backlight module 2 is not perpendicular to the backlight module 2, and is in the image 40, parallel lines 28 A gap 282 is created at the inner edge of the structural frame 24 for use in continuous image analysis. In addition, the interval of the parallel lines 28 is not limited to the same.

Please refer to FIG. 4 , which is a side view of the backlight module 2 , a light source device 50 and an image capturing device 52 . In this embodiment, the display module assembly method uses the obliquely disposed light source device 50, so that the deviations of the parallel lines 28 in the image 40 are all offset, but the invention is not limited thereto. In this embodiment, the parallel line 28 can be formed by providing a lens 502 (or glass) printed with parallel lines on the front end of the light source device 50. The projection of the parallel line on the backlight module 2 is the aforementioned parallel line 28, wherein The spacing of the parallel lines 28 is related to the parallel lines on the lens, so the spacing of the parallel lines 28 can be controlled by the spacing of the parallel lines on the lens, as is well known to those skilled in the art. Those who are easy to complete will not be described here. Moreover, in practice, the parallel lines 28 are implemented using thicker lines, which increases the image recognition of the parallel lines 28. In addition, in the embodiment, the image capturing device 52, such as but not limited to a charge coupled device (CCD), is disposed directly above the backlight module 2 to facilitate capturing the symmetric image of the backlight module 2. It helps to simplify image analysis, but the invention is not limited thereto. It is further noted that the color of the parallel lines 28 projected on the backlight module 2 is such that the parallel lines 28 can be recognized in the image 40. In general, the color of the structural frame 24 is usually dark (for example, black). At this time, the color of the parallel line 28 is preferably a light color (for example, white); however, the present invention is not limited thereto. Moreover, the light source used is not limited to visible light.

Next, the display module assembly method provides the panel 3 as shown in step S180; and assembles the panel 3 to the engagement space 26 according to the determined position (i.e., the position of the gap 282), as shown in step S200. Please refer to FIG. 5, which is a flowchart of a method for assembling the display module according to an embodiment. In this embodiment, the step S200 of the display module assembly method further includes determining the contour of the connecting space 26 (that is, the edge 26a of the engaging space 26, or the inner edge of the structural frame 24) according to the determined position. As shown in step S210. In the present embodiment, since the parallel lines 28 are not parallel to the contour of the structural frame 24 (the inner edge of the structural frame 24), the four inner edges of the structural frame 24 have a gap 282 occurring. Thus, in practice, some or all of the locations where the breaks 282 occur may be joined to form the inner edge of the structural frame 24. If the parallel line 28 is parallel to the inner edge of the structural frame 24, in practice, the parallel lines can be projected in both directions simultaneously, so that the inner edge of the structural frame 24 has a break image; The gap is used to determine the contour of the articulation space 26. Then, the display module assembly method is further based on the determined contour. The panel 3 is assembled into the engagement space 26 as shown in step S220. For example, using the contour of the articulation space 26 (or the inner edge of the structural frame 24) and the relative geometric relationship of the panel 3, based on a certain reference point (eg, the center or corner of the articulation space 26, the center or corner of the panel 3), the panel 3 is assembled into the joint space 26.

Please refer to FIG. 6 , which is a flowchart of a method for assembling the display module according to another embodiment. In this embodiment, the step S200 of the display module assembly method further includes determining, according to the determined position, the center position 26b of the connection space 26 (marked by a cross in FIG. 3), as shown in step S230. . In this embodiment, the display module assembly method may first find the contour of the engagement space 26 (as described above), and then determine the center position 26b of the engagement space 26 (ie, the center position of the contour of the connection space 26). Or directly, the coordinates of 282 at the occurrence of the gap are averaged to obtain the center position 26b of the joint space 26; however, the present invention is not limited thereto. Then, the display module assembly method can assemble the panel 3 into the connection space 26 according to the determined center position 26b, as shown in step S240. The panel 3 is assembled into the engagement space 26 based on, for example, the relative position of the center position 26b of the engagement space 26 and the center position of the panel 3, but the invention is not limited thereto.

It should be noted that, in the foregoing embodiments, the assembly of the panel 3 can be implemented by a robot arm 6, as shown in FIG. A suction cup 62 is disposed at the front end of the robot arm 6 to adsorb the panel 3 in a vacuum suction manner to achieve the operation of grasping and moving the panel 3 and placing the panel 3 in the connecting space 26, which can be easily accomplished by those skilled in the art. However, I will not go into details here. In addition, in the actual product, the panel 3 usually also relies on Double-sided tape is fixed. As shown in FIG. 2, the backlight module 2 also includes a double-sided tape 30 (indicated by a dotted line to indicate its occupied area), and is attached to the structural frame 24, so when the panel 3 is assembled in the connecting space 26 The double-sided tape 30 is adhered to the panel 3.

In addition to the function of the double-sided tape 30, the position of the double-sided tape 30 also contributes to the determination of the geometrical dimensions associated with the engagement space 26 in the various embodiments described above. Please refer to FIG. 8 , which is a flowchart of a method for assembling a module according to another embodiment. The flowchart shown in FIG. 8 is substantially the same as the flowchart shown in FIG. 1, and the main difference is that the image is captured, the image is analyzed, and the panel 3 is assembled based on the analysis result. When the image module 41 is captured, the image 41 also includes an image about the double-sided tape 30, as shown in step S340; the image of the image 41 is as shown in FIG. 9 compared with the third image. In the image 40 shown, the image 41 further includes an image of the double-sided tape 30 (shown in phantom in the figure), and the image 41 is also labeled with the same component symbol for convenience of explanation. When the image 41 is parsed, the display module assembly method is used in the image 41 to determine the position of the parallel line 28 at the edge of the engagement space 26 and the position of the double-sided tape 30, as in step S360; and the display mode The assembly method assembles the panel 3 to the engagement space 26 and causes the double-sided tape 30 to adhere to the panel 3 in accordance with the position of the gap 282 and the position of the double-sided tape 30, as by step S400.

Similarly, in step S400, in practice, the panel 3 can be assembled into the engagement space 26 based on the contour or center position of the engagement space 26. Please refer to FIG. 10, which is a flowchart of a method for assembling the display module according to an embodiment. In this embodiment, the step S400 of the display module assembly method further includes first according to the position of the gap 282 and The position of the double-sided tape 30 determines the contour of the engagement space 26 (i.e., the edge 26a of the engagement space 26, or the inner edge of the structural frame 24), as shown in step S410. The analysis of the parallel line 28 image here is not repeated as described above. In addition, since the double-sided tape 30 has a relatively wide width, which is advantageous for image recognition, the image of the double-sided tape 30 can also determine the contour of the engaging space 26 (that is, the edge 26a of the engaging space 26). In practice, the two analytical results can be averaged (ie, via parallel lines 28 and double-sided tape 30) to derive the contour of the final engagement space 26 as the contour determined by this step, or based on a double-sided tape 30. The resulting contour of the articulation space 26 is used as correction information to correct the contour of the articulation space 26 resulting from the parallel lines 28 to obtain the contour determined by this step. Next, the display module assembly method assembles the panel 3 into the engagement space 26 according to the determined contour and causes the double-sided tape 30 to adhere to the panel 3, as shown in step S420. For details of the implementation, refer to the foregoing description about step S220, and no further details are provided.

Please refer to FIG. 11 , which is a flowchart of a method for assembling the display module according to another embodiment. In this embodiment, the step S400 of the display module assembly method further includes determining the center position 26b of the connection space 26 according to the position of the gap 282 and the position of the double-sided tape 30 (that is, the contour of the connection space 26). The center position is marked with a cross in FIG. 9 as shown in step S430. The analysis of the parallel line 28 image here is not repeated as described above. Further, based on the image of the double-sided tape 30, the center position 26b of the engagement space 26 can also be found. Similarly, in practice, the two analytical results can be averaged (ie, via parallel line 28 and double-sided tape 30) to derive the center position 26b of the final engagement space 26 as the center position 26b determined by this step, or The center position 26b of the connection space 26 obtained based on the double-sided tape 30 is used as correction information to correct the correction based on The center line 26b of the engagement space 26 obtained by the parallel line 28 is used to obtain the center position 26b determined by this step. Next, the display module assembly method assembles the panel 3 into the engagement space 26 according to the determined center position 26b and causes the double-sided tape 30 to adhere to the panel 3, as shown in step S440. For details of the implementation, refer to the foregoing description about step S240, and no further details are provided. It should be noted that the selection of the color of the double-sided tape 30 may also take into account the same considerations as when the color of the parallel line 28 is selected, but the invention is not limited thereto. Since the double-sided tape 30 has a considerable width, the color of the double-sided tape 30 is in principle only necessary to be different from the color of the adjacent member. In addition, in practice, a dark (for example, black) double-sided tape 30 may be used to have a light absorbing effect, but the invention is not limited thereto.

As shown in the foregoing embodiments, the display module assembly method of the present invention utilizes the images 40 and 41 of the backlight module 2 to determine the outline of the backlight module 2, thereby accurately assembling the panel 3 to the backlight module 2. on. In addition, the display module assembly method utilizes the projection parallel line 28 to the backlight module 2, and mainly uses the image of the parallel line 28 as an analysis object to simplify the analysis of the images 40 and 41, thereby efficiently driving the panel 3 The assembly to the backlight module 2 effectively reduces or eliminates the problem of excessive product variation caused by manual operations, and also facilitates automated assembly. In addition, the double-sided tape 30 is generally only located around the light guide plate 22, and the image thereof is also simple. The display module assembly method of the present invention further analyzes the image of the double-sided tape 30 (for example, the image 41 includes the image of the double-sided tape 30) to further The accuracy of judging the connection space 26 is improved, that is, the accuracy of assembling the panel 3 to the backlight module 2.

In addition, as described in the foregoing embodiments, in practice, only the double-sided tape 30 is used. The image is used as a basis for judging the geometrical dimensions of the joint space 26, and the panel 3 is assembled to the backlight module 2 accordingly. Please refer to FIG. 2, FIG. 12 and FIG. 12, FIG. 12 is a flowchart of a method for assembling a display module according to a preferred embodiment of the present invention, and FIG. 13 is an image of the backlight module 2 according to the embodiment. A schematic diagram of 42. The flowchart shown in FIG. 12 is substantially the same as the flowchart shown in FIG. 1. The main difference is that the display module assembly method of the present embodiment uses the image of the double-sided tape 30 as the basis for judging the connection space 26. Thus, in Fig. 13, the image 42 contains an image of the double-sided tape 30 (shown in phantom in the figure), but the image of the parallel line 28 is not included. In this embodiment, the display module assembly method first provides the backlight module 2, as shown in step S500; wherein the description of the backlight module 2 (including the double-sided tape 30) can be referred to the foregoing and will not be repeated. Next, the display module assembly method captures the image 42 of the double-sided tape 30 of the backlight module 2, as shown in step S520; in the image 42, determines the position of the double-sided tape 30, as shown in step S540; The panel 3 is as shown in step S560; and the panel 3 is assembled into the engagement space 26 according to the determined position and the double-sided tape 30 is adhered to the panel 3 as shown in step S580.

The analysis of the image of the double-sided tape 30 can be referred to the foregoing and will not be repeated. In principle, in practice, based on the position of the double-sided tape 30, the display module assembly method may also determine the contour of the engagement space 26 (ie, the edge 26a of the engagement space 26) or the center position 26b of the engagement space 26 ( It is also marked with a cross in Fig. 13), and accordingly, the panel 3 device is engaged in the space 26 and the double-sided tape 30 is adhered to the panel 3. For the assembly basis of the contour of the joint space 26, reference may be made to the flowchart shown in FIG. In the flowchart, as shown in step S590, the step S580 of the display module assembly method further includes a root Based on the determined position (ie, the position of the double-sided tape 30 in the image 42), the contour of the engagement space 26 is determined; and as shown in step S600, the step S580 of the display module assembly method further includes the contour according to the determination. (ie, the contour of the engagement space 26), the panel 3 is assembled into the engagement space 26 and the double-sided tape 30 is adhered to the panel 3. For details of the implementation, refer to the foregoing description about step S220, and no further details are provided.

Further, the base position 26b of the engagement space 26 is based on the assembly, and the flowchart shown in Fig. 15 can be referred to. In the flowchart, as shown in step S610, the step S580 of the display module assembly method further includes determining the center position of the connection space 26 according to the determined position (ie, the position of the double-sided tape 30 in the image 42). 26b; and as shown in step S620, the step S580 of the display module assembly method further includes assembling the panel 3 into the connection space 26 and making the double according to the determined center position 26b (ie, the center position 26b of the engagement space 26). The face tape 30 is adhered to the panel 3. For details of the implementation, refer to the foregoing description about step S240, and no further details are provided. It should be noted that, in practice, in the algorithm using coordinate averaging, the coordinate values at the image edge number of the double-sided tape 30 may be averaged, but the invention is not limited thereto.

Please refer to FIG. 16 and FIG. 17. FIG. 16 is a top plan view showing a module assembly station 7 according to a preferred embodiment of the present invention, and FIG. 17 is a panel assembly of the module assembly station 7. A functional block diagram of the mechanism 76. For the description of the structure of the backlight module 2 and the method for assembling the panel 3, please refer to the related description of the foregoing embodiments, and no further details are provided. In the present embodiment, the display module assembly station 7 includes an isolation chamber 72, a rotating stage 74, and the panel assembly mechanism 76. The isolation chamber 72 has a first Window 722, a second window 724, and a third window 726. Rotating stage 74 is rotatably disposed within isolation chamber 72 and has a plurality of processing positions (shown in phantom circles in Figure 16), the direction of rotation 740 of which is indicated by solid arrows in Figure 16 in Figure 16. The plurality of processing positions includes a starting position 74a, a first film position 74b, a second film position 74c, a third film position 74d, a tape position 74e, a panel assembly position 74f, and an end position 74g. The panel assembly mechanism 76 includes an image capturing device 52, a robot arm 6, a control module 762, and a projection device 764 (such as the light source device 50 having the lens 502 described above), a control module 762 and an image capturing device 52, and a mechanism. The arm 6 and the projection device 764 are electrically connected, and the functional block diagram thereof is as shown in FIG. The control module 762 captures the images 40, 41, 42 according to the backlight module 2 by the image capturing device 52, and controls the robot arm 6 to grasp the panel 3 according to the captured images 40, 41, 42 and assembles to On the backlight module 2. In practice, the control module 762 can be integrated into the control system of the display module assembly station 7. The light source device 50 can also be electrically connected to the control module 762 to control the parallel lines 28 on the backlight module 2. Projection.

In the actual operation of the display module assembly station 7, the semi-finished product of the backlight module 2 can enter the isolation chamber 72 via the first window 722 to be placed on the rotating stage 74 at the starting position 74a; in practice, It is fed by robot arm, manual or conveyor belt. Next, the control module 762 controls the rotating stage 74 to sequentially rotate from the starting position 74a from each processing position, and performs a corresponding process on the backlight module 2 carried on the rotating stage 74, and finally rotates to the end position 74g. At this time, the panel 3 has been assembled to the backlight module 2, and its cross-sectional view is as shown in FIG. 18, in which the hatching is not shown in order to clearly show the structure of the stack. Further, when the control module 762 controls the rotating stage 74 When the start position 74a is rotated to the first film position 74b, the control module 762 can control a film sticking mechanism 78a, and the diffusion sheet 222 is attached to the light guide plate 22. The filming mechanism of the filming mechanism 78a can adopt the existing filming technology, which can be easily accomplished by those skilled in the art, and will not be further described herein. Next, the control module 762 controls the rotation stage 74 to rotate from the first film position 74b to the second film position 74c. The control module 762 can control a filming mechanism 78b, and attach the edge to the diffusion sheet 222 under the light guide plate 22. Lens 224. Then, the control module 762 controls the rotating stage 74 to rotate from the second film position 74c to the third film position 74d. The control module 762 can control a filming mechanism 78c to attach a film 224 to the lower surface of the light guide plate 22. Upper 226. Then, the control module 762 controls the rotating stage 74 to rotate from the third film position 74d to the tape position 74e. The control module 762 can control an tape attaching mechanism 80 to attach the double-sided tape 30 to the structural frame 24. The tape attaching mechanism 80 can be implemented by using the existing tape laying technology or the film sticking mechanism of the filming mechanism 78a, which can be easily accomplished by those skilled in the art, and will not be further described herein.

Thereafter, the control module 762 controls the rotation stage 74 to rotate from the tape attachment position 74e to the panel assembly position 74f. The panel 3 enters the isolation chamber 72 via the second window 724; in practice, it can be fed by means of a robotic arm, a hand or a conveyor belt. The control module 762 then controls the projection device to obliquely project a plurality of parallel lines 28 on the backlight module 2, and determines that the parallel lines 28 in the image 40 form a position of the gap at the edge of the connection space, and according to the judgment The position control robot 6 is actuated to assemble the panel 3 into the engagement space 26 and to adhere the double-sided tape 30 to the panel 3. In another embodiment, the control module 762 can simultaneously determine the position of the break of the parallel line 28 in the image 41 and the double-sided tape 30. The position of the robot arm 6 is controlled accordingly to assemble the panel 3 into the engagement space 26 and to adhere the double-sided tape 30 to the panel 3. Similarly, when the geometrical information of the interface space 26 is determined mainly by the image position of the double-sided tape 30 (the parallel line 28 does not need to be projected on the backlight module 2 at this time), the control module 762 will determine the image 42. The position of the double-sided tape 30 controls the actuation of the robot arm 6 to assemble the panel 3 into the engagement space 26 and adhere the double-sided tape 30 to the panel 3. Thereafter, the control module 762 controls the rotation stage 74 to rotate from the panel assembly position 74f to the end position 74g. The combination of the panel 3 and the backlight module 2 can be transported out of the isolation chamber 72 via the third window 726; in practice, the isolation chamber 72 can be sent by means of a robot arm, a manual or a conveyor belt to perform other assembly processes. For example, assembling an outer casing, packaging, and the like.

It should be noted that, in this embodiment, the rotating stage 74 is implemented as a single rotating arm, but the invention is not limited thereto. In practice, the rotating stage 74 can also be implemented by a rotating disk. At this time, the rotating disk can define a carrying position corresponding to the plurality of processing positions, thereby the display module assembly station of the present invention is at the same time. The processing program of the plurality of backlight modules 2 can be processed simultaneously. In addition, in the embodiment, the plurality of processing positions are sequentially arranged in the rotating direction 740, so that the backlight module 2 is rotated only in a single direction in the display module assembly station 7, but the invention is not limited thereto. . In addition, in the embodiment, the isolation chamber 72 is a clean room, and is provided with a dust removing device 728, so that the isolation chamber 72 can be kept in a certain dust-free environment, so that the panel 3 and the backlight module 2 are combined. The number of particles contained can be lower than that of the prior art by manual assembly.

As described above, the display module assembly station of the present invention integrates the processing environment and integrates Rotating the working line to reduce the space required by the assembly station, and using image recognition to obtain the contour information of the backlight module, helps the robot arm to accurately align and realize automatic assembly. In addition, the display module assembly station 7 simultaneously supports the assembly work of the panel 3 and the backlight module 2, the filming operation of the light guide plate 22, and the tape attaching operation of the double-sided tape 30, but the present invention does not limit. In practice, the backlight module 2 fed into the isolation chamber may also have the optical films 222, 224, 226 and the double-sided tape 30 attached first.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

2‧‧‧Backlight module

3‧‧‧ panel

6‧‧‧ Robotic arm

7‧‧‧Display module assembly station

22‧‧‧Light guide plate

24‧‧‧Structural framework

26‧‧‧Connected space

26a‧‧‧ edge

26b‧‧‧central location

28‧‧‧ parallel lines

30‧‧‧Double-sided tape

40, 41, 42‧ ‧ images

50‧‧‧Light source device

52‧‧‧Image capture device

62‧‧‧Sucker

72‧‧‧Isolation room

74‧‧‧Rotary stage

74a‧‧‧ starting position

74b‧‧‧First film position

74c‧‧‧Second film position

74d‧‧‧third film position

74e‧‧‧ Snap position

74f‧‧‧ panel assembly location

74g‧‧‧End position

76‧‧‧ Panel assembly mechanism

78a, 78b, 78c‧‧ ‧ filming mechanism

80‧‧‧ affixing agency

222‧‧‧Diffuser

224‧‧‧Downloads

226‧‧‧Upper film

282‧‧‧ 断差

502‧‧‧ lens

722‧‧‧ first window

724‧‧‧ second window

726‧‧‧ third window

728‧‧‧Dust removal device

740‧‧‧Rotation direction

762‧‧‧Control Module

764‧‧‧Projection device

S100~S240, S340~S440, S500~S620‧‧‧ implementation steps

1 is a flow chart showing a method of assembling a display module according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of a backlight module and a panel used in the assembly method of the display module.

FIG. 3 is a schematic diagram of an image of the backlight module according to the method of assembling the display module.

FIG. 4 is a side view showing the backlight module, a light source device, and an image capturing device according to the display module assembly method.

FIG. 5 is a flow chart of a method for assembling the display module according to an embodiment.

FIG. 6 is a flow chart of a method for assembling the display module according to another embodiment.

Figure 7 is a schematic view of a mechanical arm adsorbing the panel.

Figure 8 is a flow chart showing a method of assembling a display module according to another embodiment.

FIG. 9 is a schematic diagram of an image of the backlight module according to the method of assembling the display module shown in FIG. 8.

FIG. 10 is a flow chart of a method for assembling the display module according to an embodiment.

11 is a flow chart of a method of assembling the display module according to another embodiment.

Figure 12 is a flow chart showing a method of assembling a display module in accordance with a preferred embodiment of the present invention.

FIG. 13 is a schematic diagram of an image of the backlight module according to the embodiment.

Figure 14 is a flow chart of a method of assembling the display module according to an embodiment.

Figure 15 is a flow chart of a method of assembling the display module according to another embodiment.

Figure 16 is a top plan view showing a module assembly station according to a preferred embodiment of the present invention.

Figure 17 is a functional block diagram of a panel assembly mechanism of the display module assembly station in Figure 15.

Figure 18 is a schematic cross-sectional view of the panel assembled to the backlight module.

22‧‧‧Light guide plate

24‧‧‧Structural framework

26‧‧‧Connected space

26a‧‧‧ edge

26b‧‧‧central location

28‧‧‧ parallel lines

40‧‧‧Image

282‧‧‧ 断差

Claims (15)

A display module assembly method includes the following steps: (a) providing a backlight module, wherein the backlight module has a connection space; and (b) obliquely projecting a plurality of parallel lines on the backlight module; (c) Extracting an image of the connection space and the parallel line of the backlight module; (d) determining, in the image, a position where the parallel line forms a gap at an edge of the connection space; (e) providing a panel And (f) assembling the panel to the docking space based on the determined position. The display module assembly method of claim 1, wherein the step (f) further comprises the following steps: determining a contour of the connection space according to the determined position; and assembling the panel to the determined contour according to the determined Connect the space. The display module assembly method of claim 1, wherein the step (f) further comprises the following steps: determining a center position of the connection space according to the determined position; and assembling the panel according to the determined center position To the connection space. The method of assembling a display module according to claim 1, wherein in the step (b), the parallel line is not parallel to an edge of the joint space. The display module assembly method of claim 1, wherein the backlight module comprises a light guide plate and a structural frame for fixing the light guide plate, the structure frame and the light guide plate jointly form the connection space, in step (d) The break is formed at the structural frame. The method of assembling a display module according to claim 5, wherein the backlight module comprises a double-sided tape attached to the structural frame, and in the step (c), the image also includes an image about the double-sided tape. Step (d) is further included in the image to determine the position of the double-sided tape, and step (f) includes assembling the panel to the joint space according to the position of the gap and the position of the double-sided tape. The double-sided tape is adhered to the panel. The display module assembly method of claim 6, wherein the step (f) further comprises the following steps: determining the contour of the connection space according to the position of the gap and the position of the double-sided tape; and according to the decision Profile, the panel is assembled to the docking space. The method of assembling a display module according to claim 6, wherein the step (f) further comprises the following steps: determining a center position of the connection space according to the position of the gap and the position of the double-sided tape; and according to the decision The central location of the panel is assembled to the docking space. A display module assembly method includes the following steps: (a) providing a backlight module, wherein the backlight module comprises a light guide plate, a structural frame for fixing the light guide plate, and a double-sided tape attached to the structural frame, the structural frame and the light guide plate are formed together a connection space; (b) capturing an image of the double-sided tape of the backlight module; (c) determining a position of the double-sided tape in the image; (d) providing a panel; and (e) The panel is assembled to the joint space according to the determined position and the double-sided tape is adhered to the panel. The display module assembly method of claim 9, wherein the step (e) further comprises the following steps: determining a contour of the connection space according to the determined position; and assembling the panel to the determined contour according to the determined Connect the space. The method of assembling a display module according to claim 9, wherein the step (e) further comprises the following steps: determining a center position of the connection space according to the determined position; and assembling the panel according to the determined center position To the connection space. A display module assembly station includes: an isolation chamber having a first window and a second window; a rotating stage rotatably disposed in the isolation chamber and having a plurality of processing positions, the plurality of processing positions including a starting position and a panel assembly position, One of the backlight modules can enter the isolation chamber through the first window to be placed on the rotating stage in the starting position, and a panel can enter the isolation chamber through the second window to be assembled at the panel assembly position. And the panel assembly mechanism includes an image capturing device, a robot arm, a projection device, and one of the electrical connection with the image capturing device and the robot arm a control module, the projection device is configured to obliquely project a plurality of parallel lines on the backlight module, the backlight module has a connection space, and the control module uses the image capture device to capture the backlight module according to the backlight module The captured image includes the connection space of the backlight module and the image of the parallel line, and the control module determines that the parallel line in the image forms a position of the gap at the edge of the connection space, and according to The determined position controls the actuation of the robot arm to assemble the panel to the docking space. The display module assembly station of claim 12, wherein the backlight module comprises a light guide plate, a structural frame fixed to the light guide plate, and a double-sided tape attached to the structural frame, the structural frame and the The light guide plate jointly forms the connection space, the image also includes an image about the double-sided tape, the control module determines the position of the double-sided tape in the image, and the control module is based on the position of the gap and the double-sided tape The position controls the actuation of the robot arm to assemble the panel to the docking space and to adhere the double-sided tape to the panel. The display module assembly station of claim 12, wherein the backlight module includes a guide An optical plate, a structural frame fixed to the light guide plate, and a double-sided tape attached to the structural frame, the structural frame and the light guide plate together form an interface space, and the captured image includes the pair of the backlight module The image of the masking tape, the control module determines the position of the double-sided tape in the image, and the control module controls the actuation of the robot arm according to the determined position to assemble the panel to the connecting space and make the double-sided tape Paste the panel. The display module assembly station of claim 12, wherein the plurality of processing locations include a first film position, a second film position, a third film position, and a tape position, the backlight module includes a guide And a light-emitting plate and a structural frame fixed to the light guide plate, wherein when the rotating stage stops at the first film position, the second film position and the third film position, a diffusion sheet is sequentially attached to the light guide plate, When the rotating stage is stopped at the tape position, a double-sided tape is attached to the structural frame, and when the panel is assembled to the backlight module, the double-sided tape is attached. Paste the panel.