KR100829632B1 - LCOS panel assembly mounting apparatus and method of optical system - Google Patents

Abstract

Elcos panel assembly mounting apparatus of the optical system according to the present invention comprises a quad housing; A quad placed in the quad housing; A pin base fixed to the quad; A pin guide detachably fastened to the pin base; And an elcos panel assembly fixed to the pin guide.

As the present invention, the pin is manufactured in a form that is separated from the quad, when the defect occurs in the pin, there is an advantage that the manufacturing cost is reduced because only the pin guide needs to be replaced. In addition, there is a possibility that convergence or screen matching may be wrong after the matching is made at the time of production, and thus it is possible to maintain a better image quality for a long time. It has the advantage of maintaining good image quality for a long time.

Elcos, panel

Description

LCOS panel assembly mounting apparatus and method of optical system

1 is a view illustrating a state in which an elcos panel assembly is separated from a conventional quad housing;

2 is a side view illustrating a thermal deformation state of the quad housing.

Figure 3 is a perspective view of the elcos panel assembly mounting apparatus according to the present invention.

Figure 4 is an exploded perspective view of the Elcos panel assembly mounting apparatus.

5 is a perspective view showing a state in which the Elcos panel assembly is coupled to a quad.

6 is a flow chart illustrating a method for mounting an elcos panel assembly in an optical system in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

16: pin base 17: pin guide 19: screw

The present invention relates to an optical system, and more particularly, to an apparatus for mounting an Elcos panel assembly in an Elcos optical system. More specifically, the present invention relates to an Elcos panel assembly mounting apparatus of an optical system that improves screen performance and improves product recyclability by improving the structure in which the Elcos panel assembly is mounted in a quad housing.

One type of reflective liquid crystal display (LCOS: Liquid Crystal On Silicon, hereinafter referred to as Elcos) is a liquid crystal cell formed on a semiconductor substrate unlike a conventional liquid crystal display. Switching circuits can be arranged highly integrated to achieve XGA-level or higher resolution in a compact size of about 1 inch.

For this reason, the Elcos panel is attracting attention as a display device of the projection system, and the technology development and commercialization of the Elcos panel and the projection display system using the same are actively progressing.

The projection system converts white light into R (red), G (green), and B (blue) light, and includes three LCOS panels corresponding to R, G, and B light. The R, G, and B images implemented by each Elcos panel are used as a three-panel method to synthesize a color image and project it on a screen.

Such a general Elcos projection system includes a lighting system in which light is projected, a synthesis system for synthesizing each image of RGB formed on the Elcos panel after the light is projected, and a projection lens for projecting the light synthesized in the synthesis system. And a screen on which the light projected from the projection lens is formed into an image. Three elcose panels are separately fixed to the synthesis system, and red, green, and blue three colors of light separated from white light are incident on the elcos panel, and then the reflected and reflected light are synthesized with each other. In addition, a quarter wave plate is disposed in an adjacent position of the Elcos panel to improve the contrast of the image. The quarter wave plate serves to change linearly polarized light into circularly polarized light.

On the other hand, the Elcos panel is provided with three to combine the red, green, blue three colors, respectively, when provided in the three-plate type, it is important to ensure that the image registration between each of the Elcos panel is accurate to be.

In order to ensure accurate screen alignment, an Elcos panel assembly in which the Elcos panel and the quarter wave plate are coupled to the quad housing while a quad housing is provided with three color quads as a single article. To be fastened.

In detail, the coupling structure of the Elcos panel assembly and the quad housing will be described.

1 is a diagram illustrating a state in which an elcos panel assembly is separated from a conventional quad housing.

Referring to FIG. 1, conventionally, a pin 3 is integrally formed with the quad housing 1, and the pin 3 is formed in a fixing hole formed in an elcos panel assembly 6, 7, 8. 5) is inserted. After the pin 3 is inserted into the fixing hole 5, a bond is injected into the internal space of the fixing hole 5 so that the pin 3 and the fixing hole 5, and moreover, the elcos panel assembly and the quad housing are firm. To be combined. And the quad (2) is placed inside the quad housing (1) serves to separate / synthesize the light.

When the Elcos panel assembly and the quad housing are combined in this manner, the Elcos panel assembly will eventually move with the quad housing. In other words, when the quad housing is deformed due to heat, fatigue, or aging, the Elcos panel assembly moves in the same manner.

In this case, since the deformation amount of the quad housing is different depending on the position of the quad housing, the positions of the three elcos panel assemblies 6, 7 and 8 also differ, and thus the initial registration position between the elcos panel assemblies. Later become distorted. As such, when the initial matched positions of the three Elcos panel assemblies are misaligned, convergence of the screen, poor focus, and distortion of the screen may occur. This phenomenon occurs more remarkably because the amount of thermal expansion between the quad 2 and the quad housing 1 is different.

Thermal deformation of the quad housing can be seen through the side view of the quad housing shown in FIG. 2, where the higher the temperature of the quad housing, the greater the amount of deformation away from the base 4. In other words, since the base 4 is fixed to an external object, there is no thermal deformation, but the farther from the base 4, the larger the deformation amount becomes. As a result, serious deformation occurs at the front of the quad housing in which the second elcos panel assembly 7 is fixed. Of course, the thermal expansion is different for each part of the quad housing 2, it is also natural that the local Elcos panel assembly is moved.

In addition, since one Elcos panel assembly 6, 7, 8 is coupled to the quad housing 1 at a plurality of points, the deformation amount of the quad housing at the plurality of points is different. The position of the supporting point of any one Elcos panel assembly 6, 7, 8 also differs from the beginning. In this case, stress is applied to the connection portion between the pin and the fixing hole, that is, the bonding portion of the pin, and eventually causes the destruction of the Elcos panel assembly.

In addition to these problems, since the Elcos panel assembly is directly fastened to the quad housing by bonding between the pins and the fixing holes, even if any one of the Elcos panel assemblies is incorrectly assembled due to the operator's mistake in the assembly process, Can not. Therefore, there was a disadvantage in that the three Elcos panel assemblies and the quad housing as a whole had to be disposed of entirely. It is easy to predict that manufacturing costs will rise due to these difficulties.

In addition, there is a disadvantage in that the quad housing needs to be replaced as a whole because the extended usage time of the product does not allow this to be performed even when one of the elcos panel assemblies needs to be replaced by prolonged use.

In addition, during the bonding operation between the pin and the fixing hole or the movement of the quad housing, the pin is often damaged. In this case, the quad housing must be discarded as a whole.

The present invention is proposed in order to solve the above problems, excellent coupling workability of the Elcos panel assembly, excellent matching properties of the screen, easy operation, there is no need to discard the quad housing as a whole in case of poor pins We propose an Elcos panel assembly mounting device for an optical system that reduces costs, is easy to maintain in the future, and faithfully copes with thermal deformation of each member placed in a high temperature environment.

Elcos panel assembly mounting apparatus of the optical system according to the present invention for achieving the above object is a quad housing; A quad placed in the quad housing; A pin base fixed to the quad; A pin guide detachably fastened to the pin base; And an elcos panel assembly fixed to the pin guide.

According to another aspect of the present invention, an elcos panel assembly mounting apparatus of the optical system includes: a quad separating and synthesizing light; A pin base attached to the quad; A pin guide detachably fastened to the pin base and protruding at least one pin; And an Elcos panel assembly mounted to the pin.

According to another aspect of the present invention, an elcos panel assembly mounting apparatus of the optical system includes: a quad separating and synthesizing light; A quad housing accommodating the quad therein; And an elcos panel assembly detachably fastened to the quad.

According to another aspect, an elcos panel assembly mounting method of an optical system of the present invention is a method for mounting a plurality of elcos panel assemblies to be matched with each other in an elcos optical system. A process of fastening a pin base directly to a quad for synthesizing provided images, and a process of fastening a pin guide to the elcos panel assembly; And fastening the pin guide to the pin base.

According to the present invention described above, the screen misalignment of the optical system can be prevented, the productivity and maintainability of the product is improved, and can be used stably in a high temperature environment. In addition, when a failure occurs in any one Elcos panel assembly or pin, only the corresponding parts are replaced and the entire replacement is not necessary, which has the advantage of reducing costs.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the accompanying embodiments, and those skilled in the art who understand the spirit of the present invention can easily suggest other embodiments included in the scope of the same idea by adding, changing, deleting, and adding components. This may also be said to fall within the spirit of the invention.

Figure 3 is a perspective view of the Elcos panel assembly mounting apparatus according to the present invention, Figure 4 is an exploded perspective view of the Elcos panel assembly mounting apparatus.

3 and 4, the mounting apparatus of the present invention includes a quad housing 10, a quad 12 seated inside the quad housing 10, and an elcos panel assembly mounted directly on the quad. 13) (14) (15) are included. The elcos panel assemblies 13, 14 and 15 are directly directed to the quad 12 having a low amount of thermal deformation, so that the elcos panel assemblies 13, 14 and 15 also have no initial thermal deformation. The state of maintaining the position may be continued. Furthermore, even if small thermal deformations occur in the quad 12, the light is separated or synthesized while passing through the quad 12, and the elcos panel assemblies 13, 14, 15 also have such a quad 12. Since it is attached directly to the same shape and provided in the same aspect, there is no inherent concern for optical misalignment between the quad and elcos panel assemblies.

The device in which the elcos panel assemblies 13, 14, 15 are mounted to the quad 12 will be described in more detail.

First, the pin base 16 is fixed to the quad 12. In this case, it is preferable that both sides of the bonding process are bonded in terms of the use of the quad 12. In addition, the pin base 17 is fastened to the pin base 16 by using a fastening tool that is easy to engage / disengage, such as a screw. Of course, a pin 19 protrudes from the pin guide 17, and the pin 19 becomes a portion to which the elcos panel assembly is fastened as described above.

The pin guide 17 is fastened to the pin base 16 by a screw 18 passing through a groove formed in the pin base 16 and a hole formed in the pin guide 17 in common. Can be performed by The elcos panel assemblies 13, 14 and 15 are bonded to the pin 19 in a proper position.

11, not shown, refers to the base.

As described, the Elcos panel assembly mounting apparatus of the optical system according to the present invention maintains a long initial surface registration of the Elcos panel because the Elcos panel assembly is directly attached to a quad which is free of heat deformation and is a direct light path. In other words, the convergence is improved, the focus failure is eliminated, the distortion of the screen is eliminated, and the stress between the pin and the Elcos panel assembly is reduced.

In addition, the pins can be removed by removing the screws, so you only need to repair and replace them at the point where the mating error occurred. Therefore, there is an advantage that the repair is easy, the repair cost is reduced, and the manufacturing cost as a whole.

In addition, even if a defect occurs in the pin, which is a protrusion, since only a portion thereof needs to be replaced, there is an advantage in that the problem of conventionally disposing the quad housing as a whole is improved.

5 is a perspective view illustrating a state in which the Elcos panel assembly is coupled to a quad.

Referring to FIG. 5, a pin base 16 is attached to the quad 12 and the pin guide 17 is fixed to the elcos panel assembly 14, 15. Here, the pin base 16 may be formed in the form of being previously attached to the quad 12 by an ultraviolet bond or the like, and the pin guide 17 is inserted into the fixing hole 21 and then in advance by the ultraviolet bond or the like. It may be formed in an attached aspect.

In this state, the pin guide 17 is brought close to the pin base 16, and the pin guide 17 and the pin base 16 are fixed to each other using the screw 18. Of course, in the subsequent process, the process of adjusting the angle of the elcos panel and the quarter wave plate to match the screen more precisely or more accurately may be performed.

On the other hand, since the Elcos panel assembly coupled to the one pin guide 17 is provided in a manner that the two are coupled at once, it is possible to obtain a more convenient handling and fastening than the conventional. This is possible because the second elcos panel assembly 14 and the third elcos panel assembly 15 are provided in close proximity to both. In this case, the first elcos panel assembly 13 is independently fastened as an independent article. However, since the two Elcos panel assembly 14, 15 to the pin guide 17 at the same time by the present invention, it will be obvious that the coupling process is reduced and the operator's convenience is enhanced.

In addition, when the pin guide 17 is defective, such as the pin 19 being broken, it is only necessary to loosen the screw or the like and replace only the pin guide 17. Therefore, it is necessary to replace the quad housing as a whole as in the prior art. none. Therefore, the cost of repair is reduced, and there is an advantage that the Elcos panel assembly can be replaced / repaired easily in the manufacturing site.

6 is a flowchart illustrating a method for mounting an elcos panel assembly in an optical system according to the present invention.

Referring to Figure 6, the mounting method of the Elcos panel assembly according to the present invention is a process of attaching and fixing a pin base on each surface on which the Elcos panel assembly is mounted in the quad, by attaching a pin guide to the Elcos panel assembly The fixing process is performed (St 1). Here, the process of mounting the quad and pin base and the process of fixing the pin guide to the elcos panel assembly may be performed independently of each other at different times and positions.

Thereafter, the pin guide is coupled to the pin base by a predetermined fastening tool such as a screw (St 2).

As such, the process of fixing the pin guide to the Elcos panel assembly and the process of fixing the pin base to the quad are performed independently of each other, and then the pin guide and the pin base are combined in a later assembly process. Therefore, the final manufacturing process may be increased, but the final assembly process of the optical system is a process that combines the pin guide and the pin base by using a fastening tool such as a screw, there is an advantage that the work becomes more convenient. In addition, a process of attaching an Elcos panel assembly to a pin guide or a process of attaching a pin base to a quad using a bond such as an ultraviolet bond or the like may be performed at a site for producing a single product separately from a production line.

Another embodiment included in the spirit of the present invention will be described by way of example.

First, the present invention has been described that the second elcos panel assembly 14 and the third elcos panel assembly 15 are fastened using a single pin guide. However, it is not limited to such a coupling structure, it is natural that each of the Elcos panel assembly can be fastened by using different pin guides, which will also be included within the scope of the present invention.

It is also described that the pin base is fixed to the quad by the method of attachment. However, the present invention is not limited thereto, and it is natural that the pin base may be attached by other methods such as a fastening method or a direct screw fastening method as well as attachment by a bond. Furthermore, the screws for fastening the pin base and the pin guide are merely exemplary, and other fastening members of other structures and types may be easily modified and used.

In another embodiment, the idea of the present invention is characterized in that the Elcos panel assembly is directly fixed to the quad to prevent screen misalignment. To achieve this purpose, the Elcos panel assembly is mounted on the quad rather than the quad housing. As long as it is fixed, the pin base, pin guide, and the like are merely one embodiment for implementing the same. Thus, any structure in which the Elcos panel assembly is fixed to the quad can be said to be included in the spirit of the present invention, and the pin base and the pin guide are not required, and the Elcos panel assembly can be directly fixed to the quad. There will be.

As the present invention, the pin is manufactured in a form that is separated from the quad, when a failure occurs in the pin, there is an advantage that the manufacturing cost is reduced because only the pin guide needs to be replaced.

In addition, there is a possibility that convergence or screen matching may be wrong after the matching is made at the time of manufacturing, and thus it is possible to maintain a better image quality for a long time. It has the advantage of maintaining good image quality for a long time.

In addition, there is an advantage that the assembly process in the production site is simplified.

Claims (8)

Quad housing; A quad placed in the quad housing; A pin base fixed to the quad; A pin guide detachably fastened to the pin base; And Elcos panel assembly mounting apparatus of the optical system comprising an elcos panel assembly fixed to the pin guide. The method of claim 1, And the contact portion of the pin base and the quad and / or the contact portion of the pin guide and the elcos panel assembly are bonded to each other. The method of claim 1, And the pin base and the pin guide are screwed together. The method of claim 1, The Elcos panel assembly mounting apparatus of the optical system is fastened to the pin guide two Elcos panel assembly. In an Elcos optical system, a method of mounting a plurality of Elcos panel assemblies to be matched with each other, Performing a process of fastening a pin base directly to a quad for synthesizing the images provided to the plurality of Elcos panel assemblies, and a process of engaging a pin guide to the Elcos panel assembly; And And mounting said pin guide to said pin base. The method of claim 5, wherein And the pin guide and the pin base are detachably fastened. Quad separating and synthesizing light; A pin base attached to the quad; A pin guide detachably fastened to the pin base and protruding at least one pin; And Elcos panel assembly mounting apparatus of the optical system comprising an elcos panel assembly mounted to the pin. Quad separating and synthesizing light; A quad housing accommodating the quad therein; And Elcos panel assembly mounting apparatus of the optical system includes an elcos panel assembly detachably fastened to the quad.

Images