KR101047597B1 - Double waveguide - Google Patents

Abstract

The present invention provides a dual optical waveguide. The dual optical waveguide includes a first light source at both sides and includes a plurality of layers, and corresponds to the partial area so as to induce light from the first light source to a region other than a portion of the liquid crystal panel. A first optical module having a through hole formed therein; An instrument panel disposed at a position corresponding to the through hole at the rear of the first optical module and displayed in the partial region through the through hole; A second optical module disposed in the vicinity of the first optical module, the second optical module having a second light source at both sides, and having at least one pattern for guiding light from the second light source to the instrument panel and the liquid crystal panel; And an opening and closing module disposed between the liquid crystal panel and the first optical module and selectively blocking and exposing the through hole and the partial region by receiving an electrical signal from the outside. Accordingly, the present invention may selectively display a device image, such as a dashboard disposed at a predetermined distance from the liquid crystal panel, in a partial region of the liquid crystal panel so as to be partitioned from an image of another region of the liquid crystal panel.

Description

Dual Light Waveguides {DUAL LIGHT WAVE GUIDE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dual optical waveguide, wherein the selective display and dual optical waveguides are applied to a portion of a liquid crystal panel so that a device image such as an instrument panel disposed spaced apart from the liquid crystal panel can be partitioned from an image of another region of the liquid crystal panel. The present invention relates to a dual optical waveguide capable of simultaneously implementing unique functions.

Typically, a display device is a CRT, a liquid crystal display (LCD), a flat panel display panel (PDP), etc., as a device capable of displaying figures, characters, and images of contents to be displayed.

Here, the liquid crystal display may display figures, characters, and images embodied in the liquid crystal by irradiating light to the liquid crystal, but may not emit light by itself, and irradiate the liquid crystal panel of the liquid crystal display device using a separate light source to emit an image. It is a device to display. Therefore, the liquid crystal display device is provided with a double optical waveguide to irradiate light to the liquid crystal panel.

Here, the optical waveguide is divided into the edge method and the direct method according to the installation position of the lamp, the edge method is a method in which the lamp is arranged on one side or both sides of the light guide plate for guiding the light, and the direct method is directly under the light guide plate. A plurality of lamps are arranged to irradiate light toward the liquid crystal panel.

In the dual optical waveguide, a liquid crystal panel is installed in front of the bottom chassis, and a plurality of lamps and a plurality of sockets are connected between the power inverter and the lamp while the light guide plate is fixed to the bottom chassis.

For this reason, when the image is implemented by using the light provided from the lamp, the image is represented only as the image implemented in the liquid crystal panel. Therefore, the game contents of the slot machine, which must be expressed in a special mechanical manner, cannot be displayed at the same time. There is.

Therefore, as disclosed in Japanese Patent Application Laid-Open No. 166964 in 2004, it is partitioned into different areas to implement a mechanical image as necessary, so that the image can be realized in the entire area of the liquid crystal panel while being rearward from a certain area of the liquid crystal panel. A liquid crystal display device is provided so that the instrument panel can be displayed so that it can be recognized according to the game situation.

That is, as shown in FIG. 1, the liquid crystal panel 1 is provided at the front, and the optical film 2 and the light guide member 3 are sequentially provided at the rear of the liquid crystal panel 1, and the light guide member 3 is provided. One side of the edge of the lamp 4 is provided with the light of the lamp 4 is guided toward the liquid crystal panel 3 by the light guide member 3, by the induced light to implement an image on the liquid crystal panel 1, A hole 3a is formed in a part of the light guide member 3 so that the contents of the instrument panel 5 mechanically displayed from the rear thereof can be simultaneously displayed through the hole 3a as necessary.

However, since the instrument panel and the hole 3a of the light guiding member are formed, when the same image is realized in the entire liquid crystal panel 1, the contrast between the hole formed portion and the portion not formed is clear, resulting in a problem that the image is separated. have.

In addition, when the image is implemented in a part of the liquid crystal panel, that is, the edge region of the liquid crystal panel without holes, and the image is not implemented in the central region where the holes are formed, the instrument panel (by the lamp 6 provided at the rear of the instrument panel 5) 5) there is a problem that the image and the display contents of the instrument panel overlap. Therefore, there is a problem inferior identification.

In addition, although the device image such as the instrument panel can be visualized through the liquid crystal panel through the hole, there is a problem in that the illumination of the hole portion is dark during the entire display of the liquid crystal panel, thereby darkening the image of the instrument panel.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a part of a liquid crystal panel so that a device image such as an instrument panel disposed at a predetermined interval from the liquid crystal panel can be partitioned from an image of another region of the liquid crystal panel. The present invention provides a dual light wave guide that can selectively display the area and simultaneously realize the unique role of the dual light waveguide.

Another object of the present invention is to provide a dual optical waveguide capable of selectively displaying an image of devices disposed behind the liquid crystal panel at multiple positions of the liquid crystal panel.

The present invention provides a first example of a dual optical waveguide for solving the above problems.

The dual optical waveguide includes a first light source at both sides and includes a plurality of layers, and corresponds to the partial area so as to induce light from the first light source to a region other than a portion of the liquid crystal panel. A first optical module having a through hole formed therein; An instrument panel disposed at a position corresponding to the through hole at the rear of the first optical module and displayed in the partial region through the through hole; A second optical module disposed in the vicinity of the first optical module, the second optical module having a second light source at both sides, and having at least one pattern for guiding light from the second light source to the instrument panel and the liquid crystal panel; And an opening / closing module included in the first optical module and selectively blocking and exposing the through hole and the partial region by receiving an electrical signal from the outside.

The first optical module may include an optical sheet having a first through hole formed therein, and a second through hole disposed at one surface side of the optical sheet and having a position corresponding to the first through hole. A light guide plate on which a first light source is disposed, and a reflective sheet disposed on one surface side of the light guide plate, and a third through hole corresponding to a position of the second through hole is formed.

The through hole may include the first through hole, the second through hole, and the third through hole.

The opening and closing module preferably includes a polymer dispersed liquid crystal panel that is transparent by receiving the voltage, and a voltage applying unit that applies or stops a predetermined voltage to the polymer liquid crystal panel.

The polymer dispersed liquid crystal panel may have a size that may include the through hole.

In addition, the through hole may be formed at a plurality of positions of the first optical module.

In this case, the polymer dispersed liquid crystal panel is formed of a plurality, it is preferable that the plurality of through holes are formed in a position corresponding to the position.

In addition, the voltage applying unit is electrically connected to a control unit, the control unit is set in the region position information according to the plurality of positions of the through hole, the control unit is a polymer dispersed liquid crystal panel corresponding to one or more of the region position information It is preferable to selectively apply a predetermined voltage through the voltage applying unit.

On the other hand, the pattern is formed in a region corresponding to the through hole, it is preferable that the surface facing the instrument panel is formed so as to achieve any one of the scattering, refraction and diffraction of light at regular intervals toward the instrument panel.

The present invention provides a second example of a dual optical waveguide for solving the above problems.

The dual optical waveguide includes a first light source at both sides and includes a plurality of layers, and corresponds to the partial area so as to induce light from the first light source to a region other than a portion of the liquid crystal panel. A first optical module in which one or a plurality of through holes are formed; An instrument panel disposed at a position corresponding to the through hole at the rear of the first optical module and displayed in the partial region through the through hole; A second optical module disposed in the vicinity of the first optical module, having a second light source at both sides, and having at least one pattern for inducing light from the second light source to the instrument panel and the liquid crystal panel, respectively; ; A main opening / closing module included in the first optical module and selectively blocking and exposing the through hole and the partial region by receiving an electrical signal from the outside; And a sub-opening module disposed between the second optical module and the instrument panel to selectively block and expose the display of the instrument panel to the through hole by receiving an electrical signal from the outside.

The first optical module may include an optical sheet having a first through hole formed therein, and a second through hole disposed at one surface side of the optical sheet and having a position corresponding to the first through hole. A light guide plate on which a first light source is disposed, and a reflective sheet disposed on one surface side of the light guide plate and having a third through hole corresponding to a position of the second through hole, wherein the through hole comprises: a first through hole; Preferably, the second through hole and the third through hole are provided.

The main opening / closing module preferably includes a main polymer dispersed liquid crystal panel in which the voltage is applied and is transparent, and a voltage applying unit for applying or stopping a predetermined voltage to the main polymer liquid crystal panel.

In addition, the main polymer dispersed liquid crystal panel preferably has a size that may include the through hole.

In addition, the polymer dispersed liquid crystal panel is formed of a plurality, it is preferable that the one or a plurality of through holes is formed in a position corresponding to the position formed.

In addition, the voltage applying unit is electrically connected to the control unit, the control unit is set to the location information according to the position of the one or a plurality of through holes, the control unit is a polymer dispersed liquid crystal panel corresponding to the location information It is preferable to selectively apply a predetermined voltage through the voltage applying unit.

In addition, the pattern is formed in a region corresponding to the through hole, it is preferable that the surface facing the instrument panel is formed so as to achieve any one of scattering, refraction and diffraction of light at regular intervals toward the instrument panel.

The sub-switching module preferably includes a sub-polymer dispersed liquid crystal panel which is transparent by receiving the voltage, and a sub-voltage applying unit which applies or stops a predetermined voltage to the sub-polymer liquid crystal panel.

In addition, the sub-polymer dispersed liquid crystal panel preferably has a size including a region where the pattern is formed.

The present invention selectively displays a device image, such as an instrument panel, which is spaced apart from the liquid crystal panel at a predetermined interval, on a portion of the liquid crystal panel so as to be partitioned from an image of another region of the liquid crystal panel so as to transmit a desired portion to the user. In addition to being able to view the image, it has the effect that can realize the unique role of the dual optical waveguide at the same time.

In addition, the present invention has an effect that can selectively display the image of the devices disposed behind the liquid crystal panel in multiple positions of the liquid crystal panel.

In addition, the present invention has an effect that can be easily utilized in the field of games and automobiles by visually combining the image of the mechanical device and the general image on the surface of one liquid crystal panel.

Hereinafter, a dual optical waveguide of the present invention will be described with reference to the accompanying drawings.

2 is a cross-sectional view showing a first example of the double optical waveguide of the present invention. FIG. 3 is a cross-sectional view illustrating a plurality of through holes and PDLCs of FIG. 2. 4 is a cross-sectional view showing a second example of the double optical waveguide of the present invention. 5 is a cross-sectional view showing that the transfer lens is further provided in the dual optical waveguide of the present invention.

In describing the present invention, the first and second examples will be described.

2 to 4, the dual optical waveguide of the present invention includes a housing 80 having both sides opened, a liquid crystal panel 10 disposed at one side of the housing 80, and a liquid crystal panel 10 of the liquid crystal panel 10. A first optical module disposed at a rear side and having a first light source 40 at both sides, and having a through hole A, and a second optical source disposed at both sides of the first optical module and disposed at a rear side of the first optical module; And a second optical module 50, a main opening / closing module 200 included in the first optical module, and an instrument panel 90 disposed near the main opening / closing module 200.

Here, the opening of the housing 80 has a first opening 81 on which the liquid crystal panel 10 is installed and a second opening 82 for exposing the second optical module 50 to the outside. The two openings 82 may be formed to have a predetermined width narrower than that of the first opening 81. Here, the opening width of the second opening 82 is preferably formed to a size that can include the through hole (A). Here, the through hole (A) is composed of a first through hole 21, the second through hole 31 and the third through hole (71).

Here, the liquid crystal panel 10 may be made of an LCD panel. The liquid crystal panel 10 includes a partial region 11 corresponding to the through hole A and a remaining region 12 except for the partial region 11. In addition, when the through hole A is formed at a plurality of positions, the partial region 11 is also formed at a plurality of positions.

The first optical module includes an optical sheet 20 disposed behind the liquid crystal panel 10, a light guide plate 30 disposed behind the optical sheet 20, and a light guide plate 30. It is comprised by the reflective sheet 70 arrange | positioned at the back. Here, the first light source 40 is configured in a pair is disposed on the edge side of the light guide plate 30 so as to act as a side light source on both sides of the light guide plate 30.

The first light source 40 is provided as a light source such as a Cold Cathode Fluorescent Lamp (CCFL) or a Light Emitting Diode (LED) to be installed at the edge of the light guide plate 30.

Therefore, when the first light source 40 is driven to provide light, the light is incident at the edge of the light guide plate 30 and transmitted toward the through hole A, thereby inducing light to the front liquid crystal panel 10. And the light toward the through hole (A) is reflected by the surface of the through hole (A) again to induce light to the remaining area 12 of the liquid crystal panel (10). At this time, it is reflected by the surface of the through hole (A), but some may pass through the through hole (A).

The optical sheet 20 serves to uniformize the light passing through the light guide plate 30. The optical sheet 20 is composed of at least one of a diffusion sheet, a lens sheet and a prism sheet, and a composite sheet, or a sheet in which all of the diffusion sheet, the lens sheet, and the prism sheet are laminated.

A first through hole 21 is formed in the optical sheet 20, a second through hole 31 is formed in the light guide plate 30, and a third through hole 71 is formed in the reflective sheet 70. Is formed. Here, the through hole (A) is made of the first, second, third through holes (21, 31, 71) and they are formed so that their positions coincide with each other.

In addition, the light guide plate 30 is provided in a plate shape and may be provided in a synthetic resin sheet such as PMMA or transparent acrylic.

The shape and size of the through hole A may be determined by the shape and size of the partial region 11 of the liquid crystal panel 10, and the partial region 11 of the liquid crystal panel 10 may have a rectangular shape. In this case, the through hole A may also have a quadrangular shape. And the size is formed the same. However, the through hole A is not limited to the shape and size of the partial region 11.

The second optical module 50 may be a light guide plate having second light sources 60 at both sides thereof. The upper surface of the second optical module 50, that is, the surface exposed by the instrument panel 90, is formed with a pattern 51 protruding in an embossed or hemispherical shape toward the instrument panel 90. In this case, the pattern 51 is not limited to one surface of the instrument panel 90, but may be formed on one surface of the liquid crystal panel 10. Herein, the pattern 51 may be formed to achieve any one of scattering, refraction, and diffraction of light.

Here, the second optical module 50, which is a light guide plate, is formed larger than the third through hole 71 of the reflective sheet 70 so as to cover the through hole A. FIG.

The main opening / closing module 200 is included in the first optical module.

Specifically, the main opening and closing module 200 is made transparent by receiving a voltage from the outside, the main polymer dispersed liquid crystal panel 210 is installed between the optical sheet 20 and the light guide plate 30, The main polymer dispersed liquid crystal panel 210 includes a main voltage applying unit 220 for applying or stopping a predetermined voltage.

Therefore, the main polymer dispersed liquid crystal panel 210 may cover the second and third through holes 31 and 71 of the first optical module.

In the main polymer dispersed liquid crystal panel 210, when there is no voltage to be supplied, liquid crystal molecules present in the inside thereof become an irregular direction and cause scattering at an interface having a different refractive index from the medium. On the other hand, when the voltage is supplied, the direction of the liquid crystal molecules is aligned, and the refractive indexes of the liquid crystal molecules coincide with each other, thereby becoming a transmission state. Therefore, the main polymer dispersed liquid crystal panel 210 may be formed transparently or opaquely depending on the presence or absence of voltage, and thus may not require a separate polarizing plate.

The main polymer dispersed liquid crystal panel 210 may have a size that may include the second and third through holes 31 and 71.

The sub-opening module 300 is disposed between the instrument panel 90 and the second optical module 50. The sub opening / closing module 300 applies a predetermined voltage to the sub polymer dispersed liquid crystal panel 310 installed in the second opening 82 of the housing 80 and the sub polymer dispersed liquid crystal panel 310. The sub voltage applying unit 320 is configured.

Therefore, when the sub-polymer dispersed liquid crystal panel 310 receives a voltage from the sub voltage applying unit 320, the sub polymer dispersed liquid crystal panel 310 is made transparent and becomes opaque when the supply of the voltage is stopped. Accordingly, the sub-polymer dispersed liquid crystal panel 310 may serve as a shutter capable of selectively blocking the exposure path between the instrument panel 90 and the through hole A in the second opening 82.

Here, the instrument panel 90 is provided in a reel shape and is rotatably provided, and a phrase or a pattern and a figure to be displayed at a predetermined angle interval are formed. And the instrument panel 90 includes a reel drive means not shown for rotating the instrument panel 90 of a separate reel form. Here, the instrument panel 90 and the reel driving means not shown are known techniques, and the instrument panel 90 may be provided in a plate shape without being limited to the reel form.

In addition, the center of rotation of the instrument panel 90 may include a third light source 110 that illuminates from the rear of the instrument panel 90 toward the through hole A. The third light source 110 may be provided to illuminate the instrument panel 90 from the rear to increase the luminance at the front. In this case, since the third light source 110 should be formed to be narrower than the width of the instrument panel 90, the third light source 110 may be provided as a high luminance LED. And the instrument panel 90 may be provided with a plate material of a relatively thin 1mm or less synthetic resin material so that the brightness can be improved by the third light source (110).

Next, the operation of the dual optical waveguide of the present invention will be described with reference to the above configuration.

2 to 4, in the liquid crystal panel 10, a partial region 11 corresponding to a position of the through hole A of the first optical module and a remaining region 12 except for the partial region 11 are formed. do. The partial region 11 and the remaining region 12 may display different image information.

First, the main voltage applying unit 220 applies a predetermined voltage of preferably 6V to the main polymer dispersed liquid crystal panel 210. Subsequently, the liquid crystal molecules of the main polymer dispersed liquid crystal panel 210 applied with the voltage are aligned with each other. Thus, the main polymer dispersed liquid crystal panel 210 is transparent.

Accordingly, the through hole A of the first optical module may be exposed to the partial region 11 of the liquid crystal panel 10. Here, the first light source 40 of the first optical module is irradiated with light from both sides of the light guide plate 30 and reflected by the reflective sheet 70 and transmitted to the liquid crystal panel 10 through the optical sheet 20. It is transmitted to the area except the through hole (A). Accordingly, light may be transmitted to the remaining area 12 of the liquid crystal panel 10, and predetermined image information may be displayed on the remaining area 12.

In the sub opening and closing means 300, the sub voltage applying unit 320 applies a predetermined voltage to the sub polymer dispersed liquid crystal panel 310. Therefore, the liquid crystal molecules of the sub-polymer dispersed liquid crystal panel 310 may be neatly arranged to achieve a transparent state. Accordingly, the second opening 82 of the housing 80 may be in an open state. That is, the instrument panel 90 and the second optical module 50 may be exposed to be distributed to each other.

At this time, the second light source 60 disposed on both sides of the second optical module 50 irradiates light, and the irradiated light is transmitted to the pattern 51 formed in a hemispherical shape.

Part of the pattern 51 is guided to diffuse the light toward the liquid crystal panel 10, and a part of the remaining light is guided to the instrument panel 90 to illuminate the instrument panel 90. In addition, the light directed toward the liquid crystal panel 10 in the pattern 51 is limited by the second opening 81 of the housing 80 to the liquid crystal panel 10, thereby irradiating the liquid crystal panel 10. have.

The device image of the illuminated instrument panel 90 is irradiated to a partial region 11 of the liquid crystal panel 10 through the through hole A of the first optical module. Therefore, the device image of the instrument panel 90 may be displayed in the partial region 11 of the liquid crystal panel 10.

Accordingly, different image or image information may be displayed on the partial region 11 and the remaining region 12 of the liquid crystal panel 10.

Meanwhile, referring to FIG. 4, the through hole A ′ according to the present invention may be formed at a plurality of positions in the first optical module. In this case, region position information according to a plurality of positions of the through hole A 'may be preset in the controller 230 electrically connected to the main voltage applying unit 220. Herein, the through hole A 'includes a first through hole 21' formed in the optical sheet 20 ', a second through hole 31' formed in the light guide plate 30 ', and a reflective sheet. And a third through hole 71 'formed at 70').

The main polymer dispersed liquid crystal panel 210 ′ may also be formed in plural. The arrangement positions of the plurality of main polymer dispersed liquid crystal panels 210 ′ coincide with region position information.

Here, the main voltage applying unit 220 is electrically connected to the control unit 230, the area position information according to a plurality of positions of the through hole (A ') is preset in the control unit 230, the control unit ( 230 may selectively apply a predetermined voltage to the main polymer dispersed liquid crystal panel 210 ′ corresponding to one or more of the region location information through the main voltage applying unit 220.

Therefore, when the controller 230 receives an input signal for selecting one or a plurality of region location information, the controller 230 may apply a voltage to the main polymer dispersed liquid crystal panel 210 ′ corresponding to the selected region location information. The voltage applying unit 220 is operated. Accordingly, the main voltage applying unit 220 may apply a predetermined voltage to the selected main polymer dispersed liquid crystal panel 210 ′.

Accordingly, the selected main polymer dispersed liquid crystal panel 210 ′ is transparent, and the selected main polymer dispersed liquid crystal panel 210 ′ is selected in one or a plurality of partial regions 11 of the corresponding liquid crystal panel 10. ), Different device images such as the instrument panel 90 transmitted through the through hole A 'may be displayed.

That is, the controller 230 according to the present invention may display different device images on one or a plurality of partial regions 11 formed in the liquid crystal panel 10. In addition, an image different from the device image may be displayed in the remaining area 12 of the liquid crystal panel 10 except for the partial areas 11.

In addition, as shown in FIG. 5, the light passing through the second optical module 50, which is a light guide plate, may be further provided with a transfer lens 120 to transmit forward. Here, the transfer lens 120 has a plate shape having a predetermined thickness and is provided in the same shape as that of the second and third through holes 31 and 71. In this case, the thickness of the transfer lens 120 is greater than the thickness of the light guide plate 30, and is provided smaller than the thickness of the transfer lens 120 from the rear surface of the liquid crystal panel 10 to the second optical module 50.

The rear of the transfer lens 120 is in close contact with the front of the second optical module 50, and the main polymer dispersed liquid crystal panel 210 is in close contact with the front of the second optical module 50. Therefore, the light induced by the second optical module 50 may be transmitted to the liquid crystal panel 10 through the main polymer dispersed liquid crystal panel 210 through the transfer lens 120 to reduce the leakage of light.

At this time, although not shown in the drawings, the transmission lens 120 is formed in the second and third through-holes 31 and 71 along the surface of the edge so that the light transmitted therein is not blocked (not shown). May be formed. The blocking unit may be provided with the same reflective layer or diffusion layer as the blocking layer formed in the second and third through holes 31 and 71.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Of course.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

1 is a cross-sectional view showing a conventional double optical waveguide.

2 is a cross-sectional view showing a first example of the double optical waveguide of the present invention.

FIG. 3 is a cross-sectional view illustrating a plurality of through holes and PDLCs of FIG. 2.

4 is a cross-sectional view showing a second example of the double optical waveguide of the present invention.

5 is a cross-sectional view showing that the transfer lens is further provided in the dual optical waveguide of the present invention.

* Description of main parts *

10 liquid crystal panel

11: some areas

12: remaining area

20, 20 ': optical sheet

21, 21 ': First through hole

30, 30 ': light guide plate

31, 31 ': Second through hole

40: first light source

50: second optical module

51: pattern

60: second light source

70, 70 ': reflective sheet

71, 71 ': third through hole

80: housing

81: first opening

82: second opening

90: instrument panel

120: transmission lens

200: main opening and closing module

210: main polymer dispersed liquid crystal panel

220: main voltage applying unit

230: control unit

300: sub opening and closing module

310: sub polymer dispersed liquid crystal panel

320: sub voltage applying unit

A, A ': through hole

Claims (17)

A first light source is provided at both sides, and is formed of a plurality of layers, and through holes corresponding to the partial areas are formed to guide the light from the first light source to the remaining areas except for the partial areas of the liquid crystal panel. A first optical module; An instrument panel disposed at a position corresponding to the through hole at the rear of the first optical module and displayed in the partial region through the through hole; A second optical module disposed in the vicinity of the first optical module, the second optical module having a second light source at both sides, and having at least one pattern for guiding light from the second light source to the instrument panel and the liquid crystal panel; And And a switching module included in the first optical module and configured to selectively block and expose the through hole and the partial region by receiving an electrical signal from the outside. The method of claim 1, The first optical module, An optical sheet having a first through hole formed therein, a second through hole disposed at one side of the optical sheet and having a position corresponding to the first through hole, and having a first light source disposed at both sides thereof; A reflective sheet disposed on one surface side of the light guide plate and having a third through hole corresponding to a position of the second through hole; And the through hole comprises the first through hole, the second through hole, and the third through hole. The method of claim 1, The opening and closing module, A dual optical waveguide comprising: a polymer dispersed liquid crystal panel configured to be transparent by receiving a voltage; and a voltage applying unit configured to apply or stop a predetermined voltage to the polymer liquid crystal panel. The method of claim 3, The polymer dispersed liquid crystal panel is a dual optical waveguide, characterized in that having a size that can include the through-hole. The method of claim 3, And the through-holes are formed at a plurality of positions of the first optical module. The method of claim 5, The polymer dispersed liquid crystal panel is composed of a plurality, the dual optical waveguide, characterized in that disposed in a position corresponding to a plurality of positions where the through-hole is formed. The method of claim 6, The voltage applying unit is electrically connected to the control unit, Area control information corresponding to a plurality of positions of the through hole is set in the controller; And the control unit selectively applies a predetermined voltage to the polymer dispersed liquid crystal panel corresponding to one or more of the region position information through the voltage applying unit. The method of claim 1, The pattern is formed in a region corresponding to the through hole, the dual optical waveguide is formed on the surface facing the instrument panel to achieve any one of scattering, refraction and diffraction of light at regular intervals toward the instrument panel. . A first light source is provided at both sides, and is composed of a plurality of layers, and one or more through-holes corresponding to the partial area so as to guide light from the first light source to the remaining areas except for the partial area of the liquid crystal panel. A first optical module in which holes are formed; An instrument panel disposed at a position corresponding to the through hole at the rear of the first optical module and displayed in the partial region through the through hole; A second optical module disposed in the vicinity of the first optical module, the second optical module having a second light source at both sides, and having at least one pattern for guiding light from the second light source to the instrument panel and the liquid crystal panel; A main opening / closing module included in the first optical module and selectively blocking and exposing the through hole and the partial region by receiving an electrical signal from the outside; And And a sub-opening module disposed between the second optical module and the instrument panel to selectively block and expose the display of the instrument panel to the through hole by receiving an electrical signal from the outside. The method of claim 9, The first optical module, An optical sheet having a first through hole formed therein, a second through hole disposed at one side of the optical sheet and having a position corresponding to the first through hole, and having a first light source disposed at both sides thereof; A reflective sheet disposed on one surface side of the light guide plate and having a third through hole corresponding to a position of the second through hole; And the through hole comprises the first through hole, the second through hole, and the third through hole. The method of claim 9, The main opening and closing module, A dual optical waveguide, comprising: a main polymer dispersed liquid crystal panel made transparent by receiving a voltage; and a voltage applying unit configured to apply or stop a predetermined voltage to the main polymer liquid crystal panel. The method of claim 11, Wherein the main polymer dispersed liquid crystal panel has a size that may include the through hole. The method of claim 11, The polymer dispersed liquid crystal panel is composed of a plurality, the dual optical waveguide, characterized in that disposed in a position corresponding to the position where the one or a plurality of through-holes are formed. The method of claim 13, The voltage applying unit is electrically connected to the control unit, Area control information corresponding to the one or more through hole positions is set in the controller; And the control unit selectively applies a predetermined voltage to the polymer dispersed liquid crystal panel corresponding to the region position information through the voltage applying unit. The method of claim 9, The pattern is formed in a region corresponding to the through hole, the dual optical waveguide is formed on the surface facing the instrument panel to achieve any one of scattering, refraction and diffraction of light at regular intervals toward the instrument panel. . The method of claim 9, The sub opening and closing module, And a sub-polymer dispersed liquid crystal panel configured to be transparent by receiving a voltage, and a sub-voltage application unit configured to apply or stop a predetermined voltage to the sub-polymer liquid crystal panel. The method of claim 16, The sub-polymer dispersed liquid crystal panel is a dual optical waveguide, characterized in that the size comprises a region in which the pattern is formed.

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