KR20030049835A - The structure of light combining part in projector for settling alignment - Google Patents

Abstract

PURPOSE: A composite system of a projector for matching an image is provided to maintain an image having a superior quality by preventing an image from being distorted after matching the image. CONSTITUTION: A composite system of a projector includes a prism and a prism holder(50) for receiving the prism therein. A liquid crystal panel(65) is formed at three side surfaces of the prism in order to form an image signal. A panel holder(60) is provided at a contact surface formed between the liquid crystal panel(65) and the prism holder(50) in order to allow the liquid crystal panel(65) to be installed at three side surfaces of the prism. A projection lens(30) is formed at the front of the prism holder(50). A cooling fan(70) is installed under the projection lens(30) in order to cool heat generated from the projection lens(30) and the prism.

Description

The structure of light combining part in projector for settling alignment}

The present invention relates to a projector structure of a projector, and more particularly, to a projector structure for screen registration so that the matching of the screen projected from the projector and formed on the screen is effectively achieved.

Projectors, especially liquid crystal projectors, can enjoy larger and better image quality by projecting images generated on the red, green, and blue tri-color liquid crystals by the high-intensity light to form images on the screen. As a device for the use, a lot of spotlights have been made due to the increase in the presentation using a computer and the desire of the viewer to request a large screen.

The configuration of the liquid crystal projector includes an optical engine unit including a lamp unit for irradiating light, a synthesis unit for forming and projecting an image, and a projection lens unit for refracting and diffusing light as main components.

On the other hand, the synthesis unit is a red cyan tricolor image is formed, and the three colors of light are combined, the three liquid crystal panel is placed in an appropriate position in order to form an accurate screen so that the red cyan tricolor image is precisely matched. It is important to do.

In this way, a conventionally known device as a screen matching adjusting device of a projector for achieving matching between three color screens has the following configuration.

1 is a perspective view of a conventional projector synthesis system.

Referring to FIG. 1, the present invention is an image forming panel in which an image is formed, and a red and green tricolor liquid crystal panel 5 and an upper prism holder 25 to which a prism is installed to couple images of a red green and blue tricolor. A lower prism holder (see 26 in FIG. 2), a support 20 placed under the prism holders 25 and 26 so as to support its own weight, and a rear surface of the liquid crystal panel 5 to form a liquid crystal panel 5. ), And a holder coupler 15 for fixing the upper and lower sides to the upper prism holder 25 and the support 20, respectively, and supporting the liquid crystal panel holder 10 in front. Included.

Also included is a projection lens 30 to allow the three colors of light coupled through the prism to be properly refracted and projected onto the screen.

2 is an exploded perspective view of a conventional projector synthesis system.

Referring to FIG. 2, the conventional projector synthesizing unit includes a liquid crystal panel 5, a liquid crystal panel holder 10, and a holder coupler 15 integrally formed thereon, and an upper prism holder 25 and a holder coupler on the support 20. The upper and lower sides of (15) are respectively coupled. On the other hand, the coupling method is applied to the first fastener 16 to be coupled to the upper prism holder 25, and the second fastener 17 to be coupled to the support 20, respectively.

On the other hand, the lower prism holder 26 is placed below the prism 35 to fix the position of the prism.

3 is a view illustrating a structure in which a liquid crystal panel is combined in a conventional projector synthesizing unit.

Referring to FIG. 3, as a main component of a conventional projector synthesizing unit structure, a liquid crystal panel 5 includes a signal cable 5a and a liquid crystal panel 5 for receiving an input of an electrical signal formed on the upper side to control image formation. ) Is included in the fastening hole (5b) to be coupled to the liquid crystal panel holder (10). Three fastening holes 5b are formed on the outer edge surface of the liquid crystal panel 5.

In addition, the liquid crystal panel holder 10 is bent horizontally from the upper end to the upper and lower control plate 10a for adjusting the position of the liquid crystal panel up and down, and the position of the liquid crystal panel holder 10 is formed through the approximately center portion of the upper end The projection guide 10b for adjusting the light guide, the third fixing holes 10c respectively formed in the upper left and right sides, and the lower center portion so that the liquid crystal panel 5 is fixed to the liquid crystal panel holder 10, A lower spring engaging protrusion 10d for allowing the liquid crystal panel holder 10 and the holder coupler 15 to adjust the vertical position of the liquid crystal panel 5 by spring spooling from each other is included.

In addition, each pair of first variable fixing holes 15a may be formed at the upper and lower ends of the holder coupler 15 so that the holder coupler 15 moves back and forth or from side to side to be fixed at a proper position. ) And the second variable fixing hole 15b and the third fastener 6 are inserted into the fastening hole 5b and the third fixing hole 10c by the third fastener 6. After the liquid crystal panel 5 and the liquid crystal panel holder 10 are fixed in one assembly, the third fastener 6 may be moved to allow the liquid crystal panel holder 10 to be moved relative to the holder coupler 15. ) Is formed on the outside of the third fastener insertion hole 15c and the first variable fixing hole 15a and the second variable fixing hole 15b which are machined wider than First position adjusting groove 15d and second position adjusting for adjustment by a predetermined tool such as a flat head screwdriver (15h) and the clip fixing projection (15e) to be pressed on the upper and lower sides of the holder coupling sphere 15, the fixing of the liquid crystal panel holder 10 and the holder coupling sphere 15 by a certain locking action, Along with the lower spring locking protrusion 10d, the upper spring locking protrusion 15f allows the position of the liquid crystal panel 5 to be adjusted up and down by a spring locking action, and a predetermined adjustment hole is inserted therein to allow the upper and lower adjustment plates 10a to be inserted. And up and down adjustment holes 15g for adjusting the up and down positions of the liquid crystal panel holder 10.

4A to 4C are diagrams illustrating a tilt adjustment structure of the liquid crystal panel in the synthesis step structure of the projector according to the present invention.

Referring to FIG. 4A, together with the components already described in FIG. 3, a fixing clip 11 having a clip fixing hole 11a formed at one end and an adjusting hole 18a penetrating therein are machined. An inclination adjustment projection 18 is further included in the projection guide 10b to allow the inclination of the liquid crystal panel holder 10 to be adjusted.

Referring to FIG. 4B, this is a cross-sectional view taken along the line A-A 'of FIG. 4A, which extends to the rear surface of the inclination adjustment protrusion 18 and is inserted into a predetermined hole which is inserted into a predetermined hole to be processed in the holder coupling hole 15. A sphere 19 is further included.

On the other hand, the rotation center sphere 19 is to take a shape that is widely processed on the back side of the holder coupling sphere 15, so that the fastening of the rotation center sphere 19 and the holder coupling sphere 15 is not released.

In particular, the rotation center hole 19 is formed in a slightly eccentric position other than the center of the inclination adjustment projection 18, so that the inclination adjustment projection 18 rotates only when an external force is applied through the adjustment hole 18a. Non-rotational displacements are also possible.

4A and 4B, a tilt adjusting mechanism of a conventional projector synthesizing section structure will be described.

The fastening between the liquid crystal panel holder 10 and the holder coupler 15 is performed as the fixing clip 11.

Particularly, in the installation process of the fixing clip 11, the clip fixing hole 11a is aligned and aligned with the clip fixing protrusion (see 15e of FIG. 3) so that the liquid crystal panel holder 10 may be fitted with a holder coupler ( Even if it moves relatively with respect to 15), the fixing clip 11 does not come out.

After the fastening between the liquid crystal panel holder 10 and the holder coupler 15 by the fixing clip 11, the mechanism for adjusting the tilt of the liquid crystal panel holder 10 will be described.

The bar-shaped tool coincides with the diameter of the adjustment hole 18a or slightly smaller in diameter so that the tool is inserted into the adjustment hole 18a. When the torque is applied to the bar-shaped tool, the tilt adjustment protrusion 18 can be seen that the rotation and the revolution movement occur simultaneously about the rotation center hole 19. In addition, the rotation center sphere 19 is formed so as to allow free rotation of at least one of the inclination adjustment protrusion 18 or the holder coupling mechanism 15, so that the inclination adjustment protrusion 18 and the holder coupling mechanism 15 are formed. Relative movement takes place.

The movement of the inclination adjustment projection 18 is transmitted to the projection guide 10b, and the projection guide 10b moves in the direction in which the inclination adjustment projection 18 moves, resulting in the movement of the entire liquid crystal panel holder 10. The inclination of the liquid crystal panel 5 is adjusted.

4C is a view for explaining the movement of the inclination adjustment projection and the projection guide.

Referring to FIG. 4C, this is a view of FIG. 4B viewed in the direction B, and when the inclination adjustment protrusion 18 is revolved by an external force, the protrusion guide 10b is also pushed to the left and right by the left and right movement of the inclination adjustment protrusion 18. do. Similarly, the liquid crystal panel holder 10 in which the projection guide 10b is formed is also pushed left and right.

In addition, the protrusion guide 10b is positioned above the liquid crystal panel holder 10, so that the entire movement of the liquid crystal panel holder 10 is rotated from side to side about the lower side rather than being pushed from side to side. Due to this, the inclination of the liquid crystal panel holder 10 is adjusted.

On the other hand, by adjusting the shape of the projection guide (10b) may be a different direction of movement of the liquid crystal panel holder 10. For example, if the shape of the projection guide 10b is to lower the height of the upper side, the liquid crystal panel holder 10 can be moved upward when the inclination adjustment protrusion 18 is moved upward. will be.

However, the structure of the conventional projector synthesizing unit as described above has a structure in which the liquid crystal panel holder 10 and the holder coupler 15 are elastically coupled to the fixing clip 11, so that the liquid crystal panel holder 10 The adjustment is easy, but when the liquid crystal panel holder 10 is not adjusted, that is, when the position is adjusted during the operation of the device, an external shock, i.e., vibration of the fan or the projector occurs while moving There is a problem in that the screen matching of red, green, and blue colors is misaligned because it is vulnerable to shock. In addition, there is always a problem that a complicated manufacturing process is added to form such a control structure.

5 is a view for explaining a vertical adjustment mechanism of the liquid crystal panel in the structure of a conventional projector synthesizing section.

Referring to FIG. 5, in addition to the upper and lower adjustment plate 10a and the upper and lower adjustment holes 15g as illustrated in FIG. 3, the upper and lower adjustment holes 13 may be further processed to have a predetermined groove on the outer circumference, such as a male screw. It is. In addition, the inner circumference of the upper and lower adjustment holes (15g) is processed such that the grooves of the same size as the groove of the upper and lower adjustment holes 13, such as a female screw, so that the movement of the upper and lower adjustment holes 13 is guided and supported.

On the other hand, both ends are placed on the upper spring engaging projection 15f formed in the holder engaging hole 15 and the lower spring engaging projection 10d formed on the liquid crystal panel holder 10, and both holders are pulled to pull the two. A tension spring 12 is further included to allow the liquid crystal panel holder 10 to move upward with respect to the. In addition, since the upper and lower sides of the holder coupler 15 are fixed to the upper prism holder 25 and the support 20, only the liquid crystal panel holder 10 moves upward.

Referring to the above configuration in detail the movement of the liquid crystal panel holder 10 up and down as follows.

The up and down adjustment tool 13 is inserted into the upper and lower adjustment holes (15g), the lower end is in contact with the upper and lower control plate (10a).

In this state, when the liquid crystal panel 5 moves downward, the upper and lower adjusting holes 13 move up and down along the upper and lower adjusting holes 15g when the upper and lower adjusting holes 13 are rotated. In particular, when the up and down adjustment mechanism 13 moves downward, the up and down adjustment plate 10a is also pushed downward, so that the coupling assembly of the liquid crystal panel holder 10 and the liquid crystal panel 5 is displaced downward, so that the liquid crystal panel 5 It is possible to adjust the screen registration to the bottom of).

The movement of the liquid crystal panel 5 upward is achieved by adjusting in the opposite direction.

However, the operation of pushing the vertical adjustment plate 10a by the upper and lower adjustment holes 13 may be used, so that the position of the liquid crystal panel holder 10 may be adjusted. However, when the external vibration is applied, the upper and lower adjustment holes 13 may be easily used. Unwinding also causes the adverse effect that the vertical position of the liquid crystal panel 5 is distorted.

6A to 6C are diagrams for explaining front, rear, left, and right adjustment mechanisms of the liquid crystal panel in the conventional projector synthesis system structure.

Referring to FIG. 6A, a prism 35 for synthesizing light of three colors of red green blue, an upper prism holder 25 formed above the prism 35 to adjust the position of the prism 35, and A lower prism holder 26 for supporting and fixing the position of the prism 35 at the bottom, and a support 20 for supporting the weight of the prism 35 and the upper and lower prism holders 25 and 26. have. On the other hand, the prism 35 and the upper and lower prism holders 25 and 26 are bonded by UV Bond.

In addition, the upper prism holder 25 is aligned with the first positioning groove (see 15d in FIG. 3) in a line so as to adjust the position of the front, rear, left and right on the upper side of the holder coupler 15. The position of the holder coupling hole 15 in the state where the screen registration is aligned, that is, the liquid crystal panel 5 in which the screen registration is aligned, is fixed by the insertion of the first fastener (see 16 in FIG. 2). The first fixing hole 25b is further included. The first fixing hole 25b is aligned with the first variable fixing hole (see 15a of FIG. 3) and fixed by the first fastener 16.

In addition, at least one prism guide 26a is included at a side edge of the lower prism holder 26 to correctly select the position of the prism 35 during the work in which the prism 35 is placed.

In addition, the support 20 is aligned with the second positioning groove (see 15h in FIG. 3) in a line, the second position adjustment guide 20a for adjusting the position of the front, rear, left and right at the lower side of the holder coupler 15. ) And the position of the holder coupler 15 after the alignment of the second variable fixing hole (15b of FIG. A second fixing hole 20b to be fixed by the insertion of the second fixing hole 20b.

However, the prism 35 has a method in which the upper prism holder 25 and the lower prism holder 26 are bonded to the upper and lower portions, respectively, so that when the uncured portion of the UV bond is generated, the prism position is shifted. there is a problem.

In addition, if a small impact is applied from the outside while the UV Bond is cured, the correct position of the prism is misaligned, resulting in a problem of misalignment of the screen. The phenomenon of screen misalignment due to the positional variation of the prism is a serious problem in a projector that must accurately match red, green, and blue liquid crystal panels to form a correct image.

6B is a view for explaining position adjustment on the upper side of the holder coupler in the screen registration adjusting device of the projector according to the present invention.

Referring to FIG. 6B, a portion of the first positioning guide 25a and the first positioning groove (see 15d in FIG. 3) are aligned in a row, and the first fixing hole 25b and the first variable fixing are arranged in line. The holes (see 15a in Fig. 3) are arranged in a line.

A predetermined thin tool 40 such as a flat head screwdriver is inserted into the first position adjustment guide 25a and the first position adjustment groove 15d to move within the first position adjustment guide 25a. Allow the thin tool 40 to move. In particular, one end of the thin tool 40 is inserted into the first position adjusting groove 15d to allow the holder coupler 15 to move back, forth, left, and right.

As described above, the position of the holder coupler 15 is adjusted so that the screen registration of the liquid crystal panel 5 is aligned back and forth and left and right, and then the first variable fixing hole 15a and the first fixing hole 25b. A first fastener (see 16 in FIG. 2) is inserted between the two fasteners so that the holder fastener 15 is fixed.

FIG. 6C is a view illustrating a position adjustment of the holder coupler lower side in the screen registration adjusting apparatus of the projector according to the present invention, which is the same as the position adjustment of the holder coupler upper side, and thus detailed description thereof will be omitted.

However, during the process as described above, the deformation occurs in the holder coupler 15 by the twist applied by the thin tool 40, by the first fastener 16 and the second fastener 17 The torsion is fixed, in which case even if the holder coupler 15 is fixed, deformation continues to occur in the liquid crystal panel 5 due to the remaining residual stress, which eventually forms on the screen. There is a disadvantage that causes a drop in the matching of the screen.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and by avoiding a coupling method such as a screw used to couple the liquid crystal panel, and preventing the screen registration once achieved during the fixing operation of the liquid crystal panel from being mismatched, It is an object of the present invention to provide a projector structure that allows better image quality to be maintained for a long time.

It is another object of the present invention to provide a projector structure that allows the operator to assemble the parts more easily by reducing the number of parts which are complicatedly formed at the time of screen registration.

1 is a perspective view of a conventional projector synthesis system.

Figure 2 is an exploded perspective view of a conventional projector synthesis system.

3 is a view for explaining a structure in which a liquid crystal panel is combined in a conventional projector.

4A to 4C are diagrams illustrating the inclination adjustment structure of the liquid crystal panel in the synthesis step structure of the projector according to the present invention.

Fig. 5 is a diagram for explaining a vertical adjustment mechanism of a liquid crystal panel in the structure of a conventional projector synthesis section.

6A to 6C are diagrams for explaining front, rear, left, and right adjustment mechanisms of a liquid crystal panel in a conventional projector synthesis system structure.

7 is a perspective view of a projector synthesis section structure according to the present invention.

8 is a view for explaining the installation process of the prism in the synthesis system structure of the projector according to the present invention.

9 is a view for explaining the installation process of the prism supporter in the synthesis system structure of the projector according to the present invention.

10 is a view for explaining the installation process of the liquid crystal panel in the projector synthesis system structure according to the present invention.

11 is a view for explaining a method in which a liquid crystal panel and a panel holder are combined in a synthesis structure of a projector according to the present invention.

12 is a view illustrating a state in which a panel holder and a prism holder are coupled to each other in a synthetic step structure of a projector according to the present invention.

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

5, 65: liquid crystal panel 5a, 65a: signal cable 5b: fastening hole

6: Third fastener 10: Liquid crystal panel holder 10a: Up and down control plate

10b: projection guide 10c: third fixing hole

10d: Lower spring engaging protrusion 15: Holder coupling hole

15a: first variable fixing hole 15b: second variable fixing hole

15c: 3rd fastener insertion hole 15d: 1st positioning groove

15e: clip fixing protrusion 15f: upper spring locking protrusion

15g: Up and down adjustment hole 15h: 2nd position adjusting groove 16: 1st fastener

17. Second fastener 20: Support 25: Upper prism holder

26: lower prism holder 30: projection lens 35, 75: prism

50: prism holder 50b: UV bonding projection 51: vertical stand

52 holder side portion 52a supporter guide hole 53 second supporter fixing hole

55 prism supporter 60 panel holder 60a UV bonding hole

60b: panel guide 60c: fixed jig 61: ultraviolet irradiator

63: ultraviolet bonding portion 66: panel fixing device 60d: second panel fixing hole

70: cooling fan 75a: prism bonding portion

The projector synthesizing structure according to the present invention for achieving the above object comprises an image forming panel in which an image of red-green-blue three colors is formed, a prism for combining the image formed in the image forming panel, and a line with the image forming panel. Holder side portions for opening the predetermined portion to be aligned are formed on each side, characterized in that the inside further comprises a prism holder on which the prism is seated.

By adopting the above-described configuration, the synthesis step structure of the projector according to the present invention can effectively prevent distortion of the screen registration due to the vibration applied from the outside.

Hereinafter, with reference to the drawings, it will be described in detail a specific embodiment of the present invention.

7 is a perspective view of a projector synthesis system structure according to the present invention.

Referring to FIG. 7, the present invention provides a prism (see 75 of FIG. 8) for combining red, green, and blue image signals, a prism holder 50 into which the prism 75 is inserted, and The liquid crystal panel 65 is formed in three lateral directions of the prism holder 50 and allows the image signal to be formed, and the liquid crystal panel 65 so that the liquid crystal panel 65 is installed on the three sides of the prism holder 50. And a panel holder 60 formed on the contact surface of the prism holder 50, a projection lens 30 formed in front of the prism holder 50, and allowing the light to be refracted and projected, the projection lens 30 and the prism A cooling fan 70 formed below the projection lens 30 is included to allow the high heat generated by the 75 to be cooled.

In addition, a prism supporter 55 is formed on the upper side of the prism 75 so that the position of the prism 75 can be stably supported from the upper side.

In addition, the prism holder 50 is vertically formed so that the prism 75 may be seated on the vertical pole 51 and a predetermined surface formed between the vertical poles 51 for the liquid crystal panel 65. A holder side portion 52 is further included in which an opened portion is formed.

On the other hand, the liquid crystal panel 65 will be irrelevant as long as it is an image forming panel on which an image is formed and can be projected, and the liquid crystal panel is not necessarily used.

With reference to the above structure will be described briefly the formation process and operation of the projector synthesis unit structure according to the present invention. An image formed on the liquid crystal panel 65 of red, green, and blue color is formed in an illumination system (not shown), and the image is projected by the light emitted from the liquid crystal panel 65. The projected image is then combined with three colors by a prism (see 75 in FIG. 8) to form a complete image, and then is projected through the projection lens 30 to form a complete image on the screen.

On the other hand, the cooling fan 70 is installed under the projection lens 30 in order to cool the heat formed by the strong light generated during the operation of the projector to force the outside air projection lens 30 and It is intended to be blown into the synthetic step.

In addition, the prism supporter 55 allows the prism 75 to be firmly and securely fixed upward, so that the position of the prism 75 can be stably fixed even when an impact is applied from the outside, such as when carrying the projector.

In particular, the prism supporter 55 is such that when the projector is installed upside down from the ceiling, the self-weight of the prism 75 is supported on the upper surface in the state that the prism 75 can be placed upside down, thereby allowing the top and bottom installation of the projector It is effective to safely use the projector even in the reversed state.

Briefly describing the process of forming the projector composite structure having the configuration as described above, after the prism 75 is seated in the prism holder 50, the prism supporter 55 supports the upper surface of the prism 75. By doing so, the position of the prism 75 can be stably placed. In addition, the bottom surface of the prism holder 50 and the bottom surface of the prism 75 are UV bonded to be completely bonded and fixed.

After the prism 75 is installed, the liquid crystal panel 65 is formed on the side of the prism holder 50.

More specifically, the liquid crystal panel 65 is fixedly installed by the panel holder 60 and then installed on the prism holder 50 so that stable installation of the liquid crystal panel 65 can be ensured.

8 is a view for explaining the installation process of the prism in the synthesis system structure of the projector according to the present invention.

Referring to FIG. 8, the prism 75 has the shape of a rectangular parallelepiped, and a surface on which the polarizer is not attached is provided in a direction toward the projection lens 30.

Also, since the UV bond is deposited on the lower surface of the prism holder 50, the prism 75 is bonded to the lower surface of the prism holder 50, and thus the prism 75 is positioned due to the impact applied from the outside. A prism bonding portion 75a is included to prevent the change of.

In addition, the prism supporter 55 is formed with a second supporter fixing hole 53 for fixing the prism supporter 55 to the prism holder 50.

In order to fix the prism 75 more firmly, the prism bonding portion 75a may preferably allow UV bonds to be deposited at four spaces apart from each other.

The second supporter fixing hole 53 is preferably formed on the upper side of the vertical stand 51 so that the second supporter fixing hole 53 is not damaged even when the fastening tool is inserted.

On the other hand, the prism supporter 55 is formed to be aligned with the supporter guide hole 52a so that the position of the prism supporter 55 can be properly selected, and the supporter guide 55a is formed in the horizontal and vertical directions on the inner surface. And the reinforcing ribs 55c for improving the strength of the prism supporter 55 and the second supporter fixing hole 53 to be fixed to the prism holder 50 so as to be fixed to the prism holder 50. A first supporter fixing hole 55b into which the supporter fastener 56 is inserted is formed.

Preferably, the supporter guide hole 52a and the supporter guide 55a are preferably formed in at least two places so that the prism supporter 55 cannot move left and right.

9 is a view for explaining the installation process of the prism supporter in the synthesis system structure of the projector according to the present invention.

Referring to FIG. 9, the installation procedure of the prism supporter 55 will be described. In order to allow the prism supporter 55 to be installed on the prism holder 50, first, a supporter guide formed on one side of the prism supporter 55 ( 55a) is inserted into the supporter guide hole 52a. When the position of the prism supporter 55 is fixed by the supporter guide 55a and then the other side of the prism supporter 55 is fixed by the supporter fastener 56, the prism supporter 55 is fastened. The prism 75 or the like can be completed and firmly supported.

However, the supporter guide 55a and the supporter guide hole 52a may have any shape as a predetermined locking structure.

In addition, the supporter fastener 56 is generally a screw coupling method in which a screw is used, but any form may be used as a predetermined coupling structure.

10 is a view for explaining the installation process of the liquid crystal panel in the projector synthesis system structure according to the present invention.

Referring to FIG. 10, a UV bonding protrusion 50b is formed on the holder side portion 52 of the prism holder 50 to stably fix the panel holder 60 in the structure of the projector according to the present invention. The four corners of the panel holder 60 are aligned in line with the UV bonding protrusions 50b to insert the UV bonding protrusions 50b so that the mating positions of the panel holders 60 are stably fixed. Bonding holes 60a are formed. Furthermore, a signal cable 65a is formed on the upper side of the liquid crystal panel 65 for inputting an image signal as an electrical signal from the outside.

Referring to the above-described configuration, the process of installing the panel holder 60 is as follows.

UV bonding holes 60a formed at four corners of the panel holder 60 and UV bonding protrusions 50b extending at four corners of the holder side part 52 are aligned in a line, and the UV After the bonding protrusions 50b are inserted into the UV bonding holes 60a, the UV bonds are allowed to be deposited around the UV bonding holes 60a. In addition, by irradiating UV (Ultra Violet) to the deposited UV bond to bond, the bonding between the panel holder 60 and the prism holder 50 is made to be firm.

The UV bond is an article having a property of firmly solidifying after being irradiated with ultraviolet rays, and once fixed, exhibits a very strong adhesive force.

FIG. 11 is a view illustrating a method in which a liquid crystal panel and a panel holder are combined in a synthesis system structure of a projector according to the present invention.

Referring to FIG. 11, the panel holder 60 is inserted with the UV bonding protrusion 50b so that the panel holder 60 is fixed to the prism holder 50 and the panel. The panel guide 60b for easily selecting the position of the liquid crystal panel 65 on the holder 60 and the panel holder 60 while the panel holder 60 is fixed to the prism holder 50 by UV bonds. Second panel fixing for allowing the fixing jig 60c and the panel holder 60 and the liquid crystal panel 65 to be mutually coupled as a supporting structure in which an external tool is used to stably support the position of the 60. The hole 60d is included.

The liquid crystal panel 65 includes a signal cable 65a for electrically inputting an image signal to the liquid crystal, and a second panel fixing hole 60d to be aligned in line with a predetermined panel fixing member 66. The first panel fixing hole 65b for fastening the liquid crystal panel 65 and the panel holder 60 and the panel guide 60b are aligned with each other so that the liquid crystal panel 65 is aligned. A panel guide hole 65c is included for easy alignment.

Preferably, the panel guide 60b and the panel guide hole 65c are formed at least two places so that the position of the liquid crystal panel 65 is correctly selected. More preferably, the panel guide 60b and the panel guide hole 65c are formed in opposite directions with respect to the center of each of the liquid crystal panel holder 60 and the liquid crystal panel 65 so that the liquid crystal panel is left and right and up and down. It is desirable for 65 to allow the location to be selected conveniently.

In addition, the first panel fixing hole 65b and the second panel fixing hole 60d may be formed on the other side where the panel guide 60b and the panel guide hole 65c are not formed, and more specifically, the panel guide 60b. And the panel guide hole 65c is preferably formed at another corner where the panel guide hole 65c is not formed.

When the liquid crystal panel 65 and the panel holder 60 are coupled to each other, the liquid crystal panel 65 is brought close to the panel holder 60 so that the panel guide 60b and the panel guide hole 65c are combined. ) Are lined up.

In addition, the panel guide 60b and the panel guide hole 65c are fitted to each other, which causes the liquid crystal panel 65 to be placed at an appropriate position.

In addition, the panel fixture 66 is inserted into the first panel fixing hole 65b and the second panel fixing hole 60d to provide a firm fixing between the liquid crystal panel 65 and the panel holder 60.

12 is a view illustrating a state in which a panel holder and a prism holder are coupled to each other in the structure of the projector according to the present invention.

Referring to FIG. 12, first, the UV bonding protrusion 50b may be inserted into the UV bonding hole 60a. In addition, an ultraviolet irradiator 61 which is formed for bonding to the outside of the UV bonding hole 60a to irradiate ultraviolet rays to harden the UV bond, and after the UV bond is deposited, the ultraviolet irradiator 61 is irradiated. By curing by the UV bonding hole 60a and the UV bonding protrusions 50b are bonded to each other to form an ultraviolet bonding portion 63.

Preferably, the ultraviolet bonding portion 63 is preferably formed in at least two places, more preferably four corners, that is, four places on the left and right sides of the panel holder 60, respectively, in the panel holder 60.

As described above, the ultraviolet bonding portion 63 is formed in four places, thereby preventing the panel holder 60 from being separated, and in particular, the separation of the panel holder 60 by the torsion caused by high heat is suppressed. .

Meanwhile, referring to FIGS. 11 and 12, the process of coupling the panel holder 60 will be described below.

A predetermined support tool is mounted on the fixing jig 60c to stably fix the position of the panel holder 60.

Then, the position of the fixing jig 60C is supported and the position of the panel holder 60 is stably designated, and the UV bonding protrusion 50b is inserted into the UV bonding hole 60a to be UV bonded and fixed. Thus, the panel holder 60 is attached to the side of the prism holder 50.

As a result, by allowing the position of the panel holder 60 to be attached to the prism holder 50 in a state where it is stably designated by a predetermined support tool, image matching of red green blue tricolor can be reliably achieved. In addition, the matching once achieved can be firmly supported so that screen matching can be achieved completely.

The prism supporter 55 formed by the above-described process causes the upper surface of the prism 75 to be pressed, so that the UV bonding between the lower surface of the prism 75 and the prism holder 50 is weak, or the projector is aged according to use. Even in this case, the position of the prism 75 is not changed.

In particular, the prism supporter 55 can support the weight of the prism 75 when the projector is installed upside down on the ceiling of the room, so that the normal operation of the projector can be ensured, and furthermore, the cooling fan (FIG. 7). The influence of the prism 75 by the impact from the outside, such as the vibration of the reference 70) is also suppressed, so that the normal operation of the projector can be more fully guaranteed.

As described above, the projector structure of the projector according to the present invention is characterized in that it is easier to secure a proper position between the red, green, and blue three-color liquid crystal panels, and the prism position can be more firmly supported. The technical idea is not limited to that set forth in the detailed description of the present invention, and it is easy to create another embodiment by adding or deleting elements.

The synthesis part structure of the projector according to the present invention prevents residual stress generated when adjusting the position of the liquid crystal panel at first, and prevents residual stress from occurring, thereby preventing misalignment of the liquid crystal panel in advance. It has the effect of ensuring good image quality for a long time.

In addition, the present invention has the effect that the self weight of the prism is supported by a predetermined prism supporter structure, and the prism is attached to the prism holder as a single piece, thereby effectively preventing the image quality deterioration caused by the positional change of the prism.

In addition, the present invention reduces the number of screws applied to the installation and structure formation of the liquid crystal panel, there is an effect that the distortion of the screen registration due to external vibration generated in the cooling fan, etc. can be effectively prevented.

Claims (11)

A prism in which an image is synthesized; A prism holder having a holder side portion formed by opening a predetermined portion outward of the prism to allow the prism to be interpolated; A panel holder including a UV bonding hole aligned in line with the UV guide protruding to the outside of the holder side and UV bonded to the UV guide; A liquid crystal panel installed outside the panel holder to form an image; And a prism supporter coupled to the prism holder on the upper side of the prism to support the self weight of the prism, the prism supporter having a bottom thereof contacting the upper surface of the prism. The method of claim 1, And a lower surface of the prism is bonded to the prism holder. The method of claim 1, Projector composite structure of the projector, characterized in that the inner surface of the prism supporter is further formed with a plurality of reinforcing ribs are formed in the horizontal and vertical directions in order to improve the strength of the prism supporter. The method of claim 1, A plurality of supporter guide holes formed on an upper side of a holder side of the prism; And a supporter guide inserted into the supporter guide hole and formed at one end of the prism supporter so that the position of the supporter guide can be easily designated. The method of claim 1, And a vertical pole formed at a position where the side portions of each prism holder meet each other so that the strength of the holder side portion can be improved. An image forming panel on which an image of a red green cyan color is formed; A prism for allowing the images formed in the image forming panel to be combined; And a prism holder on each side of which is formed a holder side portion of the prism in which a predetermined portion aligned in line with the image forming panel is opened, and a prism holder on which the prism is mounted. The method of claim 6, And a prism bonding portion formed at four spaced apart portions so that the prism is adhesively fixed to the prism holder between the lower side of the prism and the lower side of the prism holder. The method of claim 6, Where the holder side portion of the prism meets the vertical section structure of the projector, characterized in that the longitudinal pole is further formed to improve the strength of the prism holder. The method of claim 6, And a prism supporter coupled to an upper side of the prism holder by a screwing structure and / or a stiffening structure to reliably support the upper side of the prism. The method of claim 6, UV bonding protrusions extending outward from the holder side of the prism holder to fasten the image forming panel; A UV bonding hole is formed in which the UV bonding protrusions are aligned in a line, and a panel holder for fixing the image forming panel to the outside is included. The method of claim 10, The UV bonding protrusions and the UV bonding holes are formed in four locations on the left and right sides of the projector.