WO2009116810A2

WO2009116810A2 - Apparatus for attaching stereoscopic image display panels in the process of horizontal/vertical alignment thereof

Info

Publication number: WO2009116810A2
Application number: PCT/KR2009/001392
Authority: WO
Inventors: 이영훈; 정용비
Original assignee: (주)마스터이미지; (주)디지털큐브
Priority date: 2008-03-19
Filing date: 2009-03-19
Publication date: 2009-09-24
Also published as: CN102047667A; WO2009116810A3; JP2011519051A; KR20090100028A; KR100935892B1; HK1157544A1; TWI384863B; JP5156125B2; CN102047667B; TW201006233A

Abstract

The invention relates to an apparatus for attaching stereoscopic image display panels in the process of horizontal/vertical alignment thereof. An apparatus for attaching stereoscopic image display panels according to the invention comprises: a position adjustment unit which adjusts an attaching position of a stereoscopic panel and a display module either to a horizontal direction or to a vertical direction, the stereoscopic panel selectively showing an image on the left side and an image on the right side for the implementation of a stereoscopic image, the display module illuminating an image light onto the stereoscopic panel; an image identifying unit which includes a first camera located on the top of the position adjustment unit, taking one of two symmetric positions with respect to the central portion in the horizontal direction via the central portion of the stereoscopic panel and the central portion of the display module, and a second camera located on one of two symmetric positions with respect to the central portion in the vertical direction via the central portion of the stereoscopic panel and the central portion of the display module; and an attaching unit for attaching the stereoscopic panel and the display module. The image identifying unit photographs, by the first camera, the stereoscopic image displayed on the stereoscopic panel and on the display module to identify a horizontally divided state of the stereoscopic image into the image on the left side and the image on the right side, and identifies, by the second camera, a vertically divided state of the stereoscopic image into the image on the left side and the image on the right side.

Description

Bonding device for horizontal / vertical alignment of display panels for stereoscopic images

The present invention relates to a display panel bonding technique, and more particularly, to perform bonding of a stereoscopic panel and a display module in a state of actually confirming the horizontal / vertical alignment of the stereoscopic panel and the display module of the stereoscopic display panel. It's about technology.

Advances in information and communication technology have enabled multimedia services that support two-dimensional video and voice to digital terminals that process text, voice, and video at high speeds. It is expected to develop.

In general, a three-dimensional image representing a three-dimensional image is made by the principle of stereo vision through two eyes. An important factor of the three-dimensional effect is the parallax of binocular disparity, or binocular disparity, which appears because the human eyes are about 65 mm apart. Therefore, the eyes of the left and right eyes see different two-dimensional images, and when the two images are transmitted to the brain through the retina, the brain fuses with each other to reproduce the depth and actual sense of the original three-dimensional image. This is commonly referred to as stereography.

The stereoscopic image display apparatus is largely classified into a stereoscopic stereoscopic image display apparatus and a non-eyeglass type (autostereoscopic) stereoscopic image display apparatus according to whether to wear glasses separately. Spectacular stereoscopic image display apparatus must bear the inconvenience of observer wearing special glasses, but non-stereoscopic stereoscopic image display apparatus can feel stereoscopic image simply by staring at the screen without wearing the above glasses. Since the shortcomings of the stereoscopic image display device can be solved, many researches on this have been conducted. The non-stereoscopic 3D display device is largely classified into a lenticular device and a parallax-barrier device.

In the lenticular method, a display panel is arranged alternately with a left image and a right image in a vertical cell (R, G, B) unit in a vertical direction (vertical interlacing method), and a specially manufactured refractive lens (hereinafter referred to as "lenticular) Lens ”) to separate the left and right images to view a three-dimensional image.

In addition, the parallax-barrier method is a method in which a vertical barrier is placed in front of an image corresponding to left and right eyes so that two left and right images synthesized through the barrier are separated and observed to make a stereoscopic feeling. to be.

The stereoscopic image display device includes a stereoscopic panel including the above-described lenticular lens array or parallax barrier, and a display module for illuminating image light on the stereoscopic panel, the specific configuration of the stereoscopic panel and display module including the parallax barrier, and A specific configuration for a cell type stereoscopic display module that provides displaying stereoscopic images in both horizontal and vertical directions is filed by the present applicant on August 26, 2005, and registered on November 13, 2006. The invention is described in detail in Patent No. 647517 (hereinafter referred to as "647517 Patent Invention"), which is a "cell structure parallax-barrier and a stereoscopic image display apparatus using the same."

On the other hand, in the three-dimensional panel according to the parallax-barrier method and the three-dimensional panel according to the lenticular method, the degree of separation between the left image and the right image of the stereoscopic image is influenced by the fine alignment position with the display module, thus joining them. It is necessary to raise the joining precision in a process.

Conventionally, after cutting a stereoscopic panel and a display module after displaying a guide mark indicating an alignment position between the disc state stereoscopic panel or a display module before cutting, the stereoscopic image is cut using the stereoscopic panel and display module thus cut. Although a technology for bonding a display panel for a device has been proposed, there has been a problem that misalignment of a three-dimensional panel and a display module occurs due to a cutting error occurring at the cutting stage of the original plate.

In addition, after cutting the three-dimensional panel and display module in the original state, when displaying the guide mark according to the alignment of the cut three-dimensional panel and display module, the unit cost of the three-dimensional panel and the display module itself increases according to the guide mark display. In addition to the problem, when the state of TN-LCD or TFT included in the three-dimensional panel and the display module is slightly different from each other according to the cutting state, and the guide mark is displayed according to the determined value, the guide mark is displayed in the original state before cutting. In the same manner as in the case of misalignment occurred between them.

In addition, when the process of inserting the guide mark in the three-dimensional panel and the display module and the process of bonding them separately, there is a problem that can not prevent the error occurring in the bonding process itself.

Invented by the present inventors to solve the problems as described above, filed by the present applicant on January 20, 2006, registered on April 13, 2007, the name of the invention "display panel for stereoscopic images" Bonding device and method "Patent No. 0709728 invention (hereinafter referred to as" 709728 Patent Invention ") is performed by confirming the alignment state of the three-dimensional panel and the display module by distinguishing the left and right image of the actual stereoscopic image, In this process, a technique of reducing the alignment error described above is provided by performing the bonding of both.

However, as disclosed in the Patent No. 647517, the display module for stereoscopic images, which must be bonded through a bonding apparatus, has a horizontal direction and a display module as well as a display module requiring alignment of any one of a horizontal direction and a mathematical direction. And a display module for cell type stereoscopic images that requires alignment in both vertical directions. When such a cell type stereoscopic display module is bonded in accordance with the prior art, after checking the alignment state in any one of the horizontal direction and the vertical direction, it is again aligned with respect to the other of the horizontal direction and the vertical direction. It is required to perform the same alignment check procedure by rotating in the direction for confirming, and there is a possibility that an alignment error occurs in this rotation process.

In addition, after checking the alignment in one of the horizontal and vertical directions, the procedure of checking the alignment in the other direction through rotation again may reduce the yield of the bonding process.

In addition, in the 709728 patent invention, the number of cameras of the image checking unit is simply increased from two to four, and when checking the horizontal and vertical alignment states of each of the two, the manufacturing cost and the camera utilization of the bonding apparatus can be lowered. Due to the volume of the camera itself, it may be difficult to arrange the four cameras at a proper position by the distance between the two eyes of the person in the horizontal and vertical directions. Therefore, there is a need for another technique for improving such a problem.

An object of the present invention for solving the above problems is to determine the horizontal and vertical alignment state of the stereoscopic panel and the display module to distinguish between the left image and the right image of the actual stereoscopic image while using a minimal camera. At the same time, to provide a display module bonding apparatus for a stereoscopic image that can perform the bonding of both.

In addition, by using the same concept provides a technology that can effectively reduce the number of cameras of the image confirmation unit in the conventional three-dimensional display module bonding apparatus.

In one embodiment of the present invention for solving the above problems, as a display panel bonding apparatus for a stereoscopic image, in either of the horizontal direction and vertical direction, the left image and the right image for implementing the stereoscopic image selectively A position adjusting unit for adjusting a bonding position of a display module for illuminating an image light including the left image and the right image on the stereoscopic panel to be visible; A first camera disposed at one of two positions symmetrical with each other from the center in a horizontal direction passing through the center of the stereoscopic panel and the display module, and the stereoscopic panel and the display module An image checking unit including a second camera disposed at any one of two positions symmetrical with each other from the center in a vertical direction passing through the center; And a bonding unit for bonding the three-dimensional panel and the display module, wherein the image checking unit captures the three-dimensional image displayed on the three-dimensional panel and the display module through the first camera. And the horizontal division state of the right image and the vertical division state of the left image and the right image of the stereoscopic image by capturing the stereoscopic image displayed on the stereoscopic panel and the display module through the second camera. Provided is a display panel bonding apparatus for stereoscopic images, characterized by checking.

In this case, the stereoscopic panel may be a cell type stereoscopic panel that selectively displays the left image and the right image in any one direction selected according to a stereoscopic image display mode among the horizontal and vertical directions.

The bonding unit may adjust a bonding position of the three-dimensional panel and the display module such that the horizontal direction and the vertical direction division state of the left image and the right image confirmed by the position controller is greater than or equal to a predetermined reference. It is preferable to bond the three-dimensional panel and the display module in one state.

The apparatus may further include a stereoscopic image signal controller connected to the stereoscopic panel and the display module to provide a stereoscopic image signal so that the stereoscopic panel and the display module display stereoscopic images.

In addition, the distance between the two positions symmetrical to each other from the center in a horizontal direction and a vertical direction passing through the center of the three-dimensional panel and the display module preferably corresponds to an average distance between two eyes of the person, the three-dimensional panel May comprise any one or more of a parallax barrier and a lenticular lens array.

On the other hand, in another embodiment of the present invention for solving the problems as described above as a display panel bonding device for a stereoscopic image, in one of a predetermined direction of the horizontal direction and vertical direction, left image and right for implementing the stereoscopic image A position adjusting unit for adjusting a bonding position of a stereoscopic panel for selectively displaying an image and a display module for illuminating image light including the left image and the right image on the stereoscopic panel; On the top of the position adjusting unit, a single camera disposed at any one of two positions symmetrical with each other from the center in one of the horizontal and vertical directions passing through the center of the stereoscopic panel and the display module. Image identification unit comprising; And a bonding unit for bonding the three-dimensional panel and the display module, wherein the image checking unit captures the three-dimensional image displayed on the three-dimensional panel and the display module through the single camera. Provided is a display panel bonding apparatus for a stereoscopic image, characterized by checking a state of division in the predetermined direction of the right image.

In the case of using the display module bonding apparatus for stereoscopic images according to an embodiment of the present invention as described above, the horizontal and vertical alignment states of the stereoscopic panel and the display module are aligned with the left image of the actual stereoscopic image while using a minimal camera. The identification state of the right image may be checked and the bonding may be performed.

In addition, when using the display module bonding apparatus for stereoscopic images according to another embodiment of the present invention, the number of cameras of the image confirmation unit can be efficiently used in the existing stereoscopic display module bonding apparatus.

1 is a view showing the configuration of a stereoscopic panel and a display module bonded by a display panel bonding apparatus for a stereoscopic image.

2 and 3 are views for explaining the structure when the three-dimensional panel is a parallax barrier.

4 is a schematic diagram illustrating a configuration of a display panel bonding apparatus for stereoscopic images according to the invention 709728.

5 to 7 are views for explaining the configuration of a cell type parallax barrier type display module according to the invention 647517.

8 is a diagram illustrating an example of a stereoscopic image provided by a stereoscopic image signal controller of a display panel bonding apparatus for stereoscopic images.

9 is a diagram illustrating an example of a state in which a left image and a right image are separated by an image confirming unit of a display panel bonding apparatus for stereoscopic images according to the invention 709728.

10 and 11 are views for explaining the positional relationship between two cameras for checking the alignment state of the cell type display module using the image confirmation unit according to the invention 709728.

12 is a view for explaining the core concept of the display module bonding apparatus for stereoscopic images according to the present invention.

FIG. 13 is a view for explaining a camera arrangement relationship of an image checking unit in the display module bonding apparatus for stereoscopic images according to an exemplary embodiment of the present invention.

As described above, in one embodiment of the present invention, the horizontal and vertical alignment states of the stereoscopic panel and the display module are checked while distinguishing between the left and right images of the actual stereoscopic image while using a minimal camera. An object of the present invention is to provide a display module bonding apparatus for stereoscopic images. To this end, first, the configuration of a three-dimensional panel and a display module bonded by a display module bonding apparatus for three-dimensional images, a three-dimensional image display module according to a preferred embodiment of the present invention and improved bonding technology according to the existing 709728 patent invention The bonding apparatus will be described in detail with reference to the accompanying drawings.

The detailed description, which will be given below with reference to the accompanying drawings, is intended to explain exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced.

On the other hand, the following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, one of ordinary skill in the art appreciates that the present invention may be practiced without these specific details. In some instances, well-known structures and devices are omitted or shown in block diagram form, centering on the core functions of each structure and device, in order to avoid obscuring the concepts of the present invention. In addition, the same components throughout the present specification will be described using the same reference numerals as possible.

The stereoscopic display panel may include a stereoscopic panel 100 and a display module 200 that illuminates image light on the stereoscopic panel 100. Specifically, the stereoscopic panel 100 for selectively displaying the left image and the right image for implementing the stereoscopic image in the stereoscopic image display panel bonded by the stereoscopic display panel bonding apparatus is a parallax barrier (not shown). Or a lenticular lens array (not shown). In addition, when the three-dimensional panel 100 includes a parallax barrier, the parallax barrier may be configured as a TN-LCD, wherein the display module may include a TFT for illuminating image light on the TN-LCD.

The structure of the case where the three-dimensional panel 100 is a parallax barrier will be briefly described as an example.

In the parallax barrier type stereoscopic panel 100, as shown in FIGS. 2 and 3, the left image L and the right image R arranged in the horizontal direction (Y-Y ′) are respectively perpendicular to the vertical direction (X-X). Disposed in front of the display module 200 alternately displayed at "), so that the left image L and the right image R can be selectively seen in the left and right eyes of the user, as shown in FIG. . In this case, the stereoscopic panel 100 includes a parallax barrier repeatedly arranged at intervals that cannot be seen by the human eye, and the minute alignment error between the stereoscopic panel 100 and the display module 200 is also stereoscopic. This can have a big impact on the implementation.

4 is a schematic diagram illustrating a configuration of a conventional display panel bonding apparatus for stereoscopic images.

As shown in FIG. 4, a display panel bonding apparatus for a stereoscopic image according to the existing 709728 patent invention generally includes a position adjusting unit 10, a stereoscopic image signal controller 20, an image checking unit 30, and a bonding unit 40. ).

Referring to each configuration shown in FIG. 4 with reference to FIG. 1, the position adjusting unit 10 includes a stereoscopic panel 100 and a stereoscopic panel 100 for selectively displaying a left image and a right image for implementing a stereoscopic image. Adjust the bonding position of the display module 200 for illuminating the image light to 100. In addition, the position adjusting unit 10 includes a jig for supporting the three-dimensional panel 100 and a jig for supporting the display module 200, so that at least one of these jigs is vertically (vertically) and left and right directions. Although it may include a control unit for adjusting to move in the (horizontal direction), any known control means can be used as long as it can adjust the bonding position of the three-dimensional panel 100 and the display module 200.

The stereoscopic image signal controller 20 may be connected to the stereoscopic panel 100 and the display module 200 to provide a stereoscopic image signal and a driving control signal to display the stereoscopic image. The stereoscopic image signal includes a left image generated to be visible to the left of a person and a right image generated to be visible to the right of a person. In addition, the driving control signal is any configuration that can control whether or not to drive in the three-dimensional panel 100 and the display module 200 (for example, the three-dimensional panel 100 is shown in FIGS. In the case of including the lax barrier, the parallax barrier includes a signal for controlling whether to drive the parallax barrier.

In the display panel bonding apparatus for stereoscopic images according to the above-described 709728 patent invention, the image checking unit 30 includes two

cameras

31 and 32 disposed at a position separated by a predetermined distance. The distance between these two

cameras

31 and 32 is equal to the average distance between two eyes of a person, and preferably has a distance of approximately 65 mm. Through this, the two cameras can be divided into a camera (camera L) corresponding to the left eye of the person and a camera (camera R) corresponding to the right eye, respectively. The image checking unit 30 checks the state of separation of the left image and the right image of the stereoscopic image by capturing the stereoscopic images displayed on the stereoscopic panel 100 and the display module 200 by the

cameras

31 and 32. . Accordingly, the

cameras

31 and 32 are located at a place where the stereoscopic panel 100 and the display module 200 are photographed to face each other and are positioned on two jigs of the position adjusting unit 10, respectively. , Preferably it is located at the top of the position adjusting unit (10).

In addition, the bonding unit 40 is a bonding unit of the three-dimensional panel 100 and the display module 200 such that the position control unit 10 is separated from the left image and the right image checked by the image checking unit 30 to a predetermined reference or more. After adjusting the position, the three-dimensional panel 100 and the display module 200 are bonded. Bonding unit 40 to the three-dimensional panel 100 and the display module 200 is bonded by the position controller 10 in a state of confirming the separation state of the left image and the right image by the image checking unit 30. It is achieved by moving to the optimum position, it is possible to reduce the bonding error generated in the bonding process itself.

However, when bonding a display module for cell type stereoscopic images that requires bidirectional alignment in a horizontal direction and a vertical direction by using the bonding apparatus according to the 709728 patent, the following problem may occur. In order to explain this, as an example of a display module for a cell type stereoscopic image, a display module for a cell type stereoscopic image according to the patent No. 647517 will be briefly described.

As illustrated in FIG. 5, in the cell type parallax barrier type display module, each pixel is disposed in a horizontal direction (X-X ') and a vertical direction (Y-Y'). In FIG. The pixel corresponding to the even column is omitted. Such pixels are alternately connected to two kinds of common terminals C1 and C2 and two kinds of segment terminals S1 and S2 as shown in FIG. As shown in (b), the parallax barrier may be configured in a modification direction or a horizontal direction.

That is, the cell type parallax barrier type display module according to the Patent No. 647517 is different from the general parallax barrier type display module shown in Figs. do.

In order to check the horizontal and vertical alignment state of a cell type display module requiring horizontal alignment in both directions in the horizontal and vertical directions using an existing bonding device such as the Patent No. 709728, the horizontal and vertical alignment is generally performed. After confirming the alignment of the three-dimensional panel 100 and the display module 200 in any one of the directions, and then rotate it to check the alignment of the other direction of the horizontal and vertical direction to perform the bonding. In this rotation process, an alignment error may occur and the yield of the bonding process may be reduced. This will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 8, the left image of the stereoscopic image signal provided by the stereoscopic image signal controller 20 includes an identification mark (eg, “L”) indicating that the stereoscopic image signal is a left image, and the right image of the stereoscopic image signal is It may include an identification mark (eg, “R”) indicating that it is a right image. The stereoscopic image provided by the stereoscopic image signal controller 20 has a left image and a right image divided in a vertical direction (vertical direction) and alternately arranged in a horizontal direction (horizontal direction) as shown in FIG. The image and the right image are overlapped. In the case of an image in which "L" and "R" are overlapped in FIG. 8, "L" means a display indicating that it is a left image and "R" means indicating that it is a right image. In the case of the image provided by the actual stereoscopic image controller 20, the left and right images which are further divided than the image shown in FIG. 8 are alternately arranged, so that it is difficult to know whether they are alternately disposed when viewed by the human eye. , Only "L" and "R" will be recognized as overlapping images.

9 is a diagram illustrating an example of a state in which a left image and a right image are separated by an image checking unit of a conventional display panel bonding apparatus for stereoscopic images.

When the bonding position adjustment of the stereoscopic panel 100 and the display module 200 is completed by the position adjusting unit 10, the image photographed by the left image camera 31 of the image checking unit 30 is substantially shown in FIG. 9 is the same as the image shown in (1), and the image captured by the camera 32 for the right image is substantially the same as the image shown in (2) in FIG. That is, as a result of photographing the images displayed by the three-dimensional panel 100 and the display module 200 by the two

cameras

31 and 32 of the image checking unit 30, as shown in FIGS. The two parts are joined in a state where adjustment is completed to distinguish them.

10 and 11 are views for explaining the positional relationship of two cameras for checking the alignment state of the cell type display module using the image checking unit.

In order to bond the general parallax barrier type display module as shown in FIGS. 2 and 3 in the display module bonding apparatus for stereoscopic images, the positions of the two

cameras

31 and 32 of the image checking unit are shown in FIG. 10. Likewise, one of the horizontal direction (XX 'direction) and the vertical direction (Y-Y') direction passing through the center of the stereoscopic panel 100 and the display module 200 (for example, in FIG. 10, the horizontal direction (XX). Direction ”), which may be two positions symmetric with each other (eg, position 501 and position 502). Through this, it is possible to check the actual alignment state of any one of the horizontal direction and the vertical direction of the parallax barrier as shown in FIGS. 2 and 3. Here, the distance d between the two

cameras

31 and 32 preferably corresponds to the distance between two eyes of a person. In general, the distance d is preferably 65 mm as described above, but is not limited thereto. .

Meanwhile, when bonding a display module for cell type stereoscopic image using an existing bonding device such as the bonding device according to the invention 709728, as described above with reference to FIG. 10, one of the horizontal and vertical directions is aligned. After checking the state (horizontal direction (XX 'direction) in FIG. 10), the stereoscopic panel 100 and the display module 200 are rotated 90 degrees or 270 degrees again (FIG. 11 rotates 90 degrees clockwise). In this case, it is necessary to confirm the bonding state in another direction (for example, the vertical direction (YY 'direction)), and FIG. 11 illustrates this. Accordingly, the positions of the two

cameras

31 and 32 of the image checking unit 10 are located at positions corresponding to the

positions

501 and 502, as shown in FIG. 11. Is required to be changed to a position corresponding to

As such, when the stereoscopic panel 100 and the display module 200 are rotated to check the alignment of the cell type display module, alignment errors may occur as described above in the rotation process, and the bonding process may be performed due to a separate rotation process. Can reduce the yield. In addition, when the image checking unit 10 is changed to use four cameras instead of two cameras, the manufacturing cost of the display bonding apparatus for stereoscopic images may increase, and four cameras may be due to the volume of the camera itself. May be constrained to place it at a suitable location (eg, four

locations

501, 502, 503 and 504 in FIG. 11).

In addition, instead of rotating the stereoscopic panel 100 and the display module 200 as described above with reference to FIGS. 10 and 11, the positions of the two

cameras

31 and 32 are rotated by 90 degrees or 270 degrees. Although it is possible to consider a method of using the same, the reduction in yield due to the addition of the rotation process and the alignment error due to the inaccuracy of the two camera rotation positions are the same as the method of rotating the three-dimensional panel 100 and the display module 200.

In order to solve the above problems, the present invention is to provide a display module bonding apparatus for a stereoscopic image of the type which improved the invention of the 709728, paying attention to the following principle.

It is not necessary to use two cameras to check the alignment of either the horizontal direction or the vertical direction of the 3D image display module. 12 is a horizontal direction (XX) of the three-dimensional panel 100 and the display module 200 by removing one camera 32 of the two cameras in the arrangement as shown in FIG. 10 and using only the other one camera 31. 'Direction) shows the concept of checking alignment. As described above, when a stereoscopic image is taken using only one of the two cameras, and only the division state of any one of (1) or (2) of FIG. 9 is checked, the other one is regarded as automatically aligned. can do. For example, when the camera 31 of FIG. 12 is a camera for photographing the left image L, the stereoscopic panel 100 and the display module 200 displayed as shown in FIG. As shown in FIG. 4, when only the division state of the left image L is checked, the right image may be automatically aligned.

This means that in either direction (eg, in the horizontal direction (XX 'direction)) through which the camera passes through the center of the stereoscopic panel 100 and the display module 200, two positions are symmetrical from the center (that is, the same distance from the center). 2 positions located at)). Also, as shown in FIG. 2, the left and right images L are distinguished by a certain level even if one eye (for example, the right eye) is ignored in the principle of selectively displaying the left and right images of the left and right eyes. If only the right image R is displayed on the right eye, the same principle may be used.

Therefore, the configuration of the image confirmation unit of the display module bonding apparatus for stereoscopic images according to the preferred embodiment of the present invention, which can simultaneously confirm the alignment in both directions in the horizontal direction and the vertical direction, is proposed as follows.

Specifically, in the display module bonding apparatus for a stereoscopic image according to an exemplary embodiment of the present invention as shown in FIG. 13, the image checking unit 10 may be any one of two

cameras

31 and 32. Any one of the two

positions

501 and 502 which are symmetrical with each other from the center in the horizontal direction (XX 'direction) passing through the center of the stereoscopic panel 100 and the display module 200 (FIG. 13 is an exemplary position 501). 2

positions

601 and 602 which are disposed at the center and symmetrical with each other from the center in the vertical direction (YY 'direction) through which the other camera 32 passes through the center of the stereoscopic panel 100 and the display module 200. 13 proposes to position at position 602 by way of example. With the two

cameras

31 and 32 arranged in this way, the image confirmation unit is a stereoscopic panel 100 through one camera 31. And the three-dimensional display module 200 displays By taking an image, the horizontal direction (XX 'direction) alignment state of both of them is checked on the principle as shown in FIG. 12, and the vertical direction (YY' direction) alignment state is performed on the same principle through the other camera 32. With this configuration, despite the use of the same number of cameras (two) as in the prior art, it is possible to simultaneously check the horizontal and vertical alignment states of the display module for stereoscopic images, thereby increasing the alignment accuracy. The yield of the bonding process can be improved.

In the present invention, the display module for stereoscopic images, which is the object of bonding, may be a cell type display module according to the patent No. 647517, but the present invention is one of a vertical direction and a horizontal direction of a general stereoscopic display module. It can also be used to check alignment status at the same time. In this case, the position at which the display module for the stereoscopic image to be bonded to the bonding apparatus is disposed may have an additional advantage of not being restricted in both the horizontal direction and the vertical direction.

In addition, in the above-described description, the three-dimensional panel 100 focuses on the case of the parallax barrier type three-dimensional panel, but the three-dimensional panel 100 may be applied according to the same principle even when the three-dimensional panel 100 is a three-dimensional panel by a lenticular lens array. have.

On the other hand, another embodiment of the present invention proposes a technique for efficiently reducing the number of cameras of the display panel bonding apparatus for stereoscopic images using the principle described above with respect to FIG.

That is, in the conventional display panel bonding apparatus for stereoscopic images, the image checking unit 10 does not necessarily need to include two cameras, and only one of the two cameras is used when it is clearly defined only for the positional relationship of the cameras. The same effect can be achieved.

That is, in the present embodiment, it is assumed that the image checking unit includes only a single camera, and the single camera is in either the horizontal direction or the vertical direction passing through the center of the stereoscopic panel 100 and the display module 200. It is proposed to be disposed at any one of two positions symmetrical with each other from the central portion. As such, even when only one camera is used, the actual alignment of the three-dimensional panel 100 and the display module 200 can be confirmed as described above with reference to FIG. 12, thereby doubling the efficiency of using the camera while maintaining the existing device. Can be increased.

The detailed description of the preferred embodiments of the invention disclosed as described above is provided to enable any person skilled in the art to make and practice the invention. Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. I can understand that you can. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

As described above, the present invention can be applied in a manner of performing bonding after checking the actual image alignment state in various bonding processes as well as bonding the display panel and the stereoscopic panel in the stereoscopic image field.

Claims

In the display panel bonding apparatus for stereoscopic images,

A display for illuminating an image light including the left image and the right image on the three-dimensional panel and a three-dimensional panel to selectively display the left image and the right image for stereoscopic image in any one of the horizontal direction and the vertical direction. Position adjusting unit for adjusting the bonding position of the module;

A first camera disposed at one of two positions symmetrical with each other from the center in a horizontal direction passing through the center of the stereoscopic panel and the display module, and the stereoscopic panel and the display module An image checking unit including a second camera disposed at any one of two positions symmetrical with each other from the center in a vertical direction passing through the center; And

It includes a bonding portion for bonding the three-dimensional panel and the display module,

The image checking unit checks the horizontal division state of the left image and the right image of the stereoscopic image by capturing the stereoscopic image displayed on the stereoscopic panel and the display module through the first camera. The stereoscopic display panel bonding apparatus for checking the vertical direction of the left image and the right image of the stereoscopic image by photographing the stereoscopic image displayed on the stereoscopic panel and the display module through.
The method of claim 1,

And the stereoscopic panel is a cell type stereoscopic panel for selectively displaying the left image and the right image in any one direction selected according to a stereoscopic image display mode among the horizontal and vertical directions.
The method of claim 1,

The bonding unit is a state in which the position adjustment unit adjusts the bonding position of the three-dimensional panel and the display module such that the horizontal direction and the vertical direction distinguishing state of the left image and the right image confirmed by the image checking unit is greater than or equal to a predetermined reference. And bonding the stereoscopic panel and the display module to each other.
The method of claim 1,

And a stereoscopic image signal controller connected to the stereoscopic panel and the display module and providing a stereoscopic image signal so that the stereoscopic panel and the display module display stereoscopic images.
The method of claim 1,

And a distance between the two positions symmetrical with each other from the center in a horizontal direction and a vertical direction passing through the center of the stereoscopic panel and the display module corresponds to an average distance between two eyes of a human.
The method of claim 1,

And the stereoscopic panel includes at least one of a parallax barrier and a lenticular lens array.
In the display panel bonding apparatus for stereoscopic images,

Illuminating an image light including the left image and the right image on the stereoscopic panel and the stereoscopic panel to selectively display the left image and the right image for stereoscopic image in any one of a horizontal direction and a vertical direction. Position adjusting unit for adjusting the bonding position of the display module;

On the top of the position adjusting unit, a single camera disposed at any one of two positions symmetrical with each other from the center in one of the horizontal and vertical directions passing through the center of the stereoscopic panel and the display module. Image identification unit comprising; And

It includes a bonding portion for bonding the three-dimensional panel and the display module,

The image checking unit checks the state of division in the predetermined direction of the left image and the right image of the stereoscopic image by photographing the stereoscopic image displayed on the stereoscopic panel and the display module through the single camera, Display panel bonding device for stereoscopic images.