JP2010175606A - Display plate of light-emitting diode type, and thin and long illumination tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a large display plate of an LED end surface placement type, wherein luminance of a display surface is uniform and a width is equal to or larger than a processing ability width of a laser device, and to provide a thin and long illumination tool with similar configuration. <P>SOLUTION: The LED type large display plate is obtained by a wide and large combined waveguide equal twice as large or larger than a width obtained by connecting two or more rectangular light guide plates in the width direction, having reflective patterns imprinted and processed to a maximum processing ability width, LEDs are disposed in both long side end surfaces of the rectangular waveguides and the end surface of the connected part, in other words a LED is also disposed in the middle part of the combined waveguide, the position and the shape of each imprinted reflective pattern of the two stacked light guide plates are adjusted, and luminance of the large display plate is made uniform. For the thin and long illumination tool, a combined waveguide body formed by dividing the combined waveguide thin and long is used, and its luminance is made uniform by the LED disposed in the middle part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention is a display advertising light emitting diode (hereinafter referred to as LED) installed indoors and outdoors.
This relates to a light-emitting display panel and an LED elongated luminaire.

The reflection pattern or reflection plate on one side of the rectangular translucent plate reflects the incident light from the side edge of the translucent plate on the other side of the rectangular translucent plate. There is a light guide plate type display plate in which the image is recognized by the naked eye by passing through the image film in close contact with the display surface. Also,
Fluorescent lamps that have a short service life, high environmental impact, and waste disposal are used not only in space lighting but also in showcases that illuminate articles from nearby.
Japanese Patent Application No. 2004-75541 Japanese Patent Application No. 2008-34314

However, increasing the size of the light guide plate type display plate limits the width of the light guide plate due to the processing capability of the laser processing device or the like that engraves the reflection pattern, and it is impossible to produce a large light guide plate that exceeds that width. There was a problem that it was not possible to meet the demand for a wider display.

In addition, the light guide plate manufacturing by laser processing is arranged on the long side end face, that is, the edge on the translucent plate surface scanned with the laser beam between the opposing long sides of the quadrilateral.
It is to form a pattern with a narrow groove for reflecting light emitted from the LED toward the non-processed surface, that is, the display surface. The weak point of the LED end face, that is, the edge-arranged wide plate, is that there is a problem of brightness non-uniformity, where the strip-shaped central strip parallel to the long side away from the long-side LED is darkened by light attenuation. The LED type elongated illuminator that uses a light guide that can replace the fluorescent lamp has the same problem.

The present invention was invented in view of the above situation, and includes an LED-type display plate and an elongated illuminator that suppresses the non-uniformity by arranging LEDs not only in the periphery of the light guide plate but also in the middle. The purpose is to provide.

In order to achieve the above-mentioned object, the present invention is arranged such that LEDs are arranged on both long side end surfaces and inner surfaces of a rectangular combined light guide plate having a reflection pattern or only on both long side end surfaces, and a reflecting material is disposed on both short side end surfaces. The LED type display panel is composed of an outer peripheral frame assembly that houses the LED power supply circuit-related equipment.

The present invention provides a first rectangular translucent plate having a reflection pattern in a central portion that is substantially divided into three equal parts in parallel with the long side, and a second rectangular translucent plate that has reflection patterns on both side portions that are also divided in substantially the same manner. In the bi-polymer light guide plate overlaid on the plate, LEDs are arranged on both ends of the long side, reflectors on both ends of the short side, reflectors and back plate on the entire top surface, light diffusion plate and display film on the entire bottom surface Place the face plate and LED
LED integrated with an outer frame that houses power circuit equipment
This is a double-type display panel.

The present invention provides an LED-type central light guide plate having a central double-type combined light guide plate in which LEDs are transferred and arranged on both end faces of the central portion obtained by cutting and removing the non-engraved portions on both sides of the first rectangular translucent light guide plate in the double-type combined light guide plate. It is a double type display board.

According to the present invention, in the central double-type combined light guide plate, a lap joint type combined guide in which a reflecting material is disposed on both cut end surfaces of both side portions obtained by cutting and removing the center non-marked portion of the middle plate of the second rectangular translucent plate. It is an LED type lap joint type display board using a light plate.

The present invention provides a light guide plate in which the opposite sides of a single-side LED light guide plate having a plurality of reflective patterns that are in contact with each other and have a maximum width from the side on which the LED is disposed to the opposite side are reflected on the entire reflective pattern surface. This is a LED butt-type display board that is constructed integrally with an outer peripheral frame assembly in which a light diffusing plate, a display film, and a front plate are arranged on the entire other surface, and the LED power supply circuit related equipment is housed inside.

The present invention provides the other side of the LED light guide plate according to claim 4 on the opposite side.
In a combined light guide that partially overlaps the LED side of the LED light guide plate, a reflective material and a back plate are provided on the entire top surface, each other end and each side end, and a light diffusing plate, a display film, and a front plate are provided on the entire bottom surface. It is an LED-type sequential stacked display panel that is arranged and integrated with an outer peripheral frame assembly that houses LED power supply circuit-related equipment.

The present invention includes a double-type, a central double-type, a lap joint type, and a sequential superposition type combined light guide plate each of which is reduced in the long side direction, and an LED disposed on each end face and intermediate end face thereof. , Each long side end surface, the short side end surface where no LED is disposed, the reflective material disposed on the entire upper surface, the light diffusing material and the surface material disposed on the entire lower surface,
It is a LED type elongated illuminator of double type, central double type, lap joint type, and sequentially stacked type, which are integrally configured by an exterior body that houses the LED power circuit related equipment.

The present invention relates to an LED disposed on one or more open notches or closed notches and both short sides inside the end face or end face on one or both sides of the long side of the elongated flat plate light guide having a reflection pattern, each end and each plane. A reflective material, a light diffusing material, a surface material,
LED integrated with an exterior body that houses LED power supply circuit-related equipment
This is a notch type lighting fixture.

In the present invention, LEDs are arranged on both short sides of the light guide and LEDs are also arranged on each open notch or each closed notch attached to both end surfaces or inner surface portions of the long side, and light diffusion is performed on the back surface of the plane having the reflection pattern. This is an LED-type notched flat illuminator that is made up of an exterior body that arranges a material and a surface material, arranges a reflective material on both sides of the notch and the reflection pattern plane, and houses the LED power circuit related equipment inside.

In the present invention, LEDs are arranged on both short sides of a flat light guide, and one long side end surface has a notch and a reflection pattern in which one or more LEDs are arranged, and a reflecting material is provided on the long side end surface and both side planes. , Arrange the light diffusing material and the surface material over the entire long side end face of the notch,
LED integrated with an exterior body that houses the LED power circuit related equipment
This is a notch type lighting fixture.

In the LED type display panel of the present invention, the LEDs are arranged in the middle of the width of the light guide plate, and the brightness of the display panel is made uniform.

In the LED type double display panel of the present invention, the LED is arranged in the middle of the width of the light guide plate,
The brightness of the display board is uniform.

The LED-type center double display panel of the present invention has uniform brightness, and a light-transmitting material, that is, a light guide plate is saved.

The LED lap joint type display panel of the present invention has uniform luminance and further saves light-transmitting material.

The LED butt type display panel of the present invention is a large display panel with uniform brightness and double width.

The LED type sequentially stacked display panel of the present invention is a super-large display panel with wider width and uniform brightness.

Each of the LED type double type, center double type, lap joint type and sequentially stacked type elongated illuminator of the present invention has a plurality of LEDs arranged in the middle of the light guide, and the brightness is uniform.
The translucent material is reduced, and the stacking type can be elongated in sequence.

The LED-type notched illuminator of the present invention is arranged with high brightness and uniformity by arranging LEDs in an open notch on one end face of a single elongated flat light guide or in a closed notch inside the end face.

In the LED-type notched flat illuminator of the present invention, the notches in which the LEDs are arranged are on both end surfaces of the long side of the flat light guide material, and the brightness is further uniformed.

The LED notch type lighting device of the present invention has a narrow light emitting surface and high luminance.

BEST MODE FOR CARRYING OUT THE INVENTION A best mode of a light emitting diode (hereinafter referred to as LED) type display board and an elongated illuminator according to the present invention will be described with reference to FIGS. The width of the display board, that is, L
In the case of a wide light guide plate having a large distance between both sides to face each other where the ED is disposed, the brightness of the central strip portion is reduced, that is, nonuniformity occurs due to light attenuation as described above.
As a method to improve this, we devised various configurations of the light guide plate and LED arrangement,
In order to produce a large display board with a width that exceeds the processing capability of the laser processing equipment,
A combined light guide plate was devised to join the translucent plate in the width direction.
Note that the long side of the rectangular translucent plate or translucent material, the light guide plate or the light guide is referred to as a length, and the short side is referred to as a width. Further, description will be made with the display light emitting surface on the lower side.

FIG. 1 is a schematic cross-sectional view in the width direction with the display surface of a rectangular LED type double display panel 1A of the present invention facing down, and FIG. 2 shows a double combined light guide plate 2A which is the main part of the display panel. It is a schematic cross-sectional view, and is roughly divided into three equal parts or a central part parallel to the long side of each acrylic resin translucent plate as two constituent materials, and the upper first translucent plate 2a is The reflection pattern 3a is engraved on the upper surface of the central portion, and the lower second translucent plate 2b is engraved with the reflection pattern 3b on the upper surface of both side portions, and these two sheets are laminated and joined. In this double-type combined light guide plate 2A, LED substrates 4b on which individual LEDs or LEDs are arranged are arranged on both end surfaces of the long side, the reflecting material is disposed on both end surfaces of the short side not shown in the figure, and the reflecting material 5 is disposed on the entire upper surface. And back plate 6
A milk plate, that is, a light diffusing plate 7, a display film 8, and a surface plate 9 serving as a display light-emitting surface are arranged on the entire lower surface, and LED power supply circuit board related devices are accommodated inside the LED substrate 4b.
The LED-type double display panel 1A is configured by being integrated with a metal outer peripheral frame body 10 composed of a plurality of members that is directly or indirectly connected to and also serves as a heat sink.
It should be noted that structures related to other functions, waterproofness, etc. of the outer peripheral frame body are omitted.
It should be noted that the reflection pattern may be imprinted approximately in accordance with the position of the character or design to be displayed, or the LED corresponding to the portion not imprinted may be removed. A reflective agent may be attached to the reflective pattern.

A plurality of parallel reflective patterns 3a having substantially thin and long rhombuses with a thin line structure engraved on the upper surface of the central portion of the first light-transmitting plate 2a have both acute angle ends near the long sides on both sides of the central portion. The reflection pattern 3b having a substantially elongated triangular shape engraved on the upper surfaces of both sides of the plate 2b has a position where the apex of the acute angle is in the vicinity of the long sides of the both sides and the base overlaps with the respective acute angle ends of the elongated rhomboid pattern. It is in the shape of a spread at the end. See Patent Document 2 and Japanese Patent Application No. 2008-34314.
And the radiated light from LED board 4a arrange | positioned at both long sides is a 1st translucent board.
2a reflection pattern non-engraved pass through both sides as it is, proceed to the central part, reflected by the reflection pattern 3a there, transmitted in the thickness direction of the translucent plate 2a and proceed to the display surface, the second translucent plate The lower surface of 2b, that is, the entire display surface of the combined light guide plate 2A exhibits substantially uniform luminance.

Each of the following display plates is substantially the same except that the shape of the combined light guide plate is different, and instead of showing a cross-sectional schematic view of each display plate, a cross-sectional schematic view of each combined light guide plate is shown.
In the following description, it is assumed that 2A in FIG. 1, that is, the double united light guide plate 2A shown in FIG. 2 is replaced with each united light guide plate.

FIG. 3 is a schematic cross-sectional view of the combined light guide plate 2B of the LED type center double display panel 1B according to the present invention, in which the both sides of the first light transmission plate 2a of the double light guide plate 2A are removed. Central double-type combined light guide plate with translucent plate only at the center
2B, the LED 4b is transferred and arranged on both end faces, and in the same manner as described above, the reflecting material is provided on both end faces of the short side, the reflecting material 5 and the back plate 6 are provided on the entire upper surface, and the light diffusing plate 7 and the display film 8 are provided on the entire lower surface. The face plate 9 is arranged, and the LED type central double display panel 1B is configured by integrating the outer peripheral frame body 10 in which the LED power supply circuit-related appliances are housed. By LED4b arranged on both long sides and both end faces of the first translucent plate 2a,
The first translucent plate reflects the LED light to the central portion of the display surface of the second translucent plate 2b, and the entire display surface is substantially uniform by the LED 4b disposed in the middle portion of the width of the combined light guide plate 2B. Expresses brightness. The widths of the LED type double type and center double type display boards are limited by the processing width, since the width of the second light transmission plate is the maximum processing width of the processing machine.

FIG. 4 shows a combined light guide plate 2 C of the LED type lap joint type display plate 1 C of the present invention.
FIG. 2 is a schematic cross-sectional view of the second light transmitting plate 2b of the central double-type display panel 2B, and the width of the non-engraved central portion of the second light transmitting plate 2b is smaller than the width of the central portion of the first light transmitting plate. A lap joint type combined light guide plate 2 C in which both ends of the long side of the central portion of the first translucent plate 2a are overlapped and joined to the cut end of the light transmitting portion, and the LED 4b is arranged on both ends of the long side of the outside, and the inner side is cut. In close contact with the reflective material 5b on both end faces of the long side,
The reflective material is brought into close contact with the cut end face of each side portion, and the reflective material 5 and the back plate 6 are disposed on the entire upper surface.
A light diffusing plate 7, a display film 8, and a surface plate 9 are arranged on the entire lower surface, and are integrated by an outer peripheral frame assembly 10 in which an LED power supply circuit-related instrument is housed to constitute an LED type lap joint type display plate 1C. Similar to the above, the entire display surface expresses substantially uniform luminance.

If the width of each translucent plate is set to the maximum processing width of the processing machine, this LED type lap joint type display plate is approximately three times the maximum processing width, and is not restricted by the processing function force. LEDs are also arranged in the middle part of each united light guide plate, and the luminance is made uniform. In other words, both the problem of increasing the size of the display plate and the resulting non-uniform luminance are solved simultaneously. The LED 4b of the first light transmitting plate 2a may be on one side.

FIG. 5 is a schematic cross-sectional view of the light guide plate 2D of the LED butt display panel 1D according to the present invention. The butt is formed by engraving a thin and substantially triangular reflection pattern group from one long side to the opposite side where the LED 4b is arranged. A translucent plate 2d and another translucent plate 2d similar to each other are butt-joined to form a double-width butt-type light guide plate 2D. Similarly to the above, a reflecting material is brought into close contact with the end faces of both short sides, Reflector 5 on the entire top surface
And the back plate 6 are arranged on the entire lower surface with a light diffusing plate 7, a display film 8 and a front plate 9, and are integrated by an outer peripheral frame body 10 in which an LED power circuit related device is housed. Composed. Note that a double-sided reflective material may be sandwiched between the butt end faces. Further, one of the butted translucent plates 2d may be used as a display plate. In this case, a reflective material is arranged on the non-LED arrangement end face.

FIG. 6 shows the combined light guide plate 2E of the LED-type sequentially stacked display plate 1E of the present invention.
LED4b one-sided translucent plate 2d used for the butting
In the combined light guide 2E in which the opposite sides of the similar one-side LED light-transmitting plate 2d are partially overlapped under the LED-side end sides, similarly to the above, each of the opposite-side end faces has a reflecting material.
5b and reflectors on the short sides of each side, reflector 5 and back plate 6 on the entire top surface, light diffuser 7, display film 8 and surface plate 9 on the entire bottom surface The outer peripheral frame body 10 that accommodates the inside constitutes an ultra-large LED type sequentially stacked display panel 1E that is substantially equal to an arbitrary multiple of the integrated laser processing width. The united light guide 2E, the reflecting plate, and the light diffusing plate are partially tightly bonded to the outer peripheral frame body 10, the back plate 6, and the front plate 9.

In addition, the following explanation is based on the double type 2A, the central double type 2B, and the lap joint type 2C.
And a lighting fixture that uses each united light guide that follows the cross-sectional shape of each united light guide plate of the stacking type 2E, and the cross section in the long side direction is substantially the same as FIG. As in the case of the display panels, the configurations of the lighting devices are substantially the same.

FIG. 7 is a schematic longitudinal sectional view in the long side direction of an LED-type lap-jointed elongated illuminator 1R using a lap-joint combined light guide 2R as a representative example.
The body light guide 2R has a shape in which the length of the combined light guide plate 2C is shortened, that is, is cut and divided by a short predetermined dimension parallel to the short side, the cut dimension is the width, and the length is the length of the combined light guide plate. Width. In this elongated combined light guide 2R,
The LED 4b is arranged on each short-side end face of each light-transmitting material, and the reflecting material 5b is in close contact with the long-side end face and the short-side end face where the LED is not arranged. A metal or plastic exterior that houses the LED power circuit related equipment inside, with the reflective material 5 on the entire upper surface and the light diffusing material 7 and the surface material 9 on the entire lower surface of the combined light guide 2R that is the light-emitting surface Body 10 r
As a result, the LED lap joint type illuminator 1R is formed. The above is an example when the width of the lighting fixture, that is, the cutting dimension is equal to or greater than the thickness, that is, the dimension from the lower surface of the surface material to the upper surface of the exterior body. The integrated light guide of each shape cut out from the flat light-transmitting plate may also be used. Since the LED is arranged in the middle of the elongated combined light guide material, the luminance is made uniform.

Although not shown in the drawing, the structure of the other type of illuminating device corresponds to the shape difference of the combined light guide, and is the same as in the case of each display panel. Therefore, the LED type double combined light guide A double-type lighting fixture 1P with 2P, a central double-type lighting fixture 1Q with a central double-type combined light guide 2Q, and a sequential stacking type lighting fixture 1S with a sequential overlapping-type combined light guide 2S can be easily assumed.

FIG. 8 is a schematic cross-sectional view in the long side direction of the LED-type notched flat lighting device 1X, and the light emission surface is not shown.
One or more rectangular, trapezoidal, or other quadrangular open cuts 11 facing each other or alternately staggered on the long side end faces of the non-merged elongated flat plate light guide 2X, or closed square cuts such as squares and circles inside the end faces And LED4 is arranged on both short side end faces,
Similarly to the above, although not shown, one or more elongated triangular reflective patterns that require or parallel to each LED side are engraved on one side plane, the other side becomes a light emitting surface, and both side end surfaces of the notch And a reflective material 5 on the plane of the reflective pattern, a light diffusing material and a surface material (not shown) are disposed on the lower surface of the plane, that is, the entire light emitting surface,
LE integrated with an exterior body 10x that houses the LED power circuit related equipment
A D-type notched flat lighting 1X is configured. L on both short side edges and notches
ED4 is arranged to make the brightness uniform. The notch depth is equal to or less than the thickness of the light guide.

FIG. 9 is a schematic longitudinal sectional view in the long side direction of the LED-type notched illuminator 1Y, in which one or more LEDs 4 are arranged on one long side end face of the elongated planar light guide 2Y. And the same reflection pattern is engraved, and the other long-side end surface is a light emitting surface, and similarly to the above, the reflective material 5 is formed on the notched end surface and both side surfaces on which the reflection pattern is engraved. Light diffuser 7 over the entire end face of some other long side
And exterior material 10y that arranges the surface material 9 and houses the LED power circuit related equipment inside
As a result, the LED-type notched lighting fixture 1Y is configured. The elongated light-emitting surface of the light guide body thickness is arranged on the short side end faces on both sides and each notch, by LED4,
Higher brightness and uniformity. In addition, the aspect ratio of the cross section of the flat plate type and the vertical type light guide is set to 1 and up to 10. Further, a reflection pattern may be engraved on the both side planes.

As described above, the configurations and functions of the LED display plate and the LED elongated illuminator using the combined light guide plate of the present invention have been described. However, it should be understood that various modifications are possible and structural details may be omitted. As an example of modification, the light guide plate may be configured in various ways by combining a plurality of unit modules, that is, a light transmitting plate having a width of 1 meter and a length of 1 meter or more. For example, following the lap joint type combined light guide plate, using the three unit modules, the first transparent plate is formed on the entire end surfaces of both long sides facing each other of the two second light transmitting plate modules arranged in parallel at an interval of the module width. It is a non-overlapping united light guide plate that is three times the module width formed by arranging and joining transparent receivers of the same thickness and width that support the optical plate module, reflecting patterns, LEDs,
A reflective material or the like is disposed in the same manner as described above. It should be noted that the unit module configurations of other types of light guide plates can be understood in the same manner except for the sequentially stacked type. The same applies to the light guide of the illuminator.

The main structural differences between the display board and the elongated illuminator are the surface shape and the rod shape, the long side and the short side are reversed, the presence or absence of the display film and the back material, the outer peripheral frame body and the exterior body. Although the application is different, the basic functions are the same.
In addition, you may replace the additional marking of a reflective pattern with the printing type application | coating of a reflecting agent, or the machining by a pointed blade or a file.
As the reflection pattern moves away from the LED on which dots are arranged, the pattern may be deepened in a divergent shape, that is, in a gradation shape or machining.

In addition, you may attach the inclination with respect to the plane of a translucent board or a translucent material to the end surface where LED is arrange | positioned. Further, in the case of a single rectangular cross-section light guide for an elongated illuminator, the left and right cross sections may be changed continuously with the bisected cross section perpendicular to the long axis as the symmetry plane. That is, the light guide may have a shape other than a rectangular parallelepiped.
In addition, you may arrange | position the LED power supply circuit related instrument on the exterior of an outer periphery frame body and an exterior body.
The center portion of the lap joint type combined light guide plate may be a butt type light guide plate.
Further, the light guide material may be a bead material mixed with a fine powder reflective agent. In this case, the reflection pattern is not stamped.

It is the cross-sectional schematic of the width direction of the LED type | mold double-type display board of this invention. It is the cross-sectional schematic of the short side direction of the double type | mold combined light-guide plate of this invention. It is the cross-sectional schematic of the short side direction of the center double type | mold union light-guide plate of this invention. It is the cross-sectional schematic of the short side direction of the lap joint type | mold union light-guide plate of this invention. It is the cross-sectional schematic of the short side direction of the butt-type light-guide plate of this invention. It is the cross-sectional schematic of the short side direction of the sequential overlap type | mold combined light-guide plate of this invention. It is the longitudinal cross-sectional schematic of the long side direction of the LED type | mold lap joint type elongate lighting fixture of this invention. FIG. 2 is a schematic cross-sectional view in the long side direction of the xLED-type notched plate-type elongated illuminator of the present invention. It is the longitudinal cross-sectional schematic of the long side direction of the LED type notch standing type | mold elongate lighting fixture of this invention.

1A LED type double display board
1R LED lap joint type elongated illuminator 1X Notched flat plate type elongated illuminator,
1Y Notch type long and narrow lighting fixture
2A Double united light guide plate
2B Central bipolymer light guide plate,
2C lap joint type combined light guide plate,
2D butt-type united light guide plate,
2E Sequentially combined light guide plate,
2R lap joint type combined light guide 2a first translucent plate,
2b Second translucent plate,
2d butt translucent plate
3a reflective pattern,
3b reflective pattern,
4b LED, LED substrate
5, 5b Reflector,
6 Back plate,
7 Light diffusing plate,
8 Display film 9 Surface plate,
10 outer frame body,
10r, 10x, 10y exterior body
11 Notch

Claims (10)

A rectangular combined light guide plate having a reflection pattern, LEDs arranged at both ends of the long side and the middle part of the plate surface or only at both ends of the long side, reflectors arranged at both ends of the short side, and reflectors arranged on the entire upper surface An LED type display board comprising: a back panel, a light diffusing plate disposed on the entire bottom surface, a display film, a front panel, and an outer peripheral frame housing an LED power circuit related device inside. 2. The LED-type display board according to claim 1, wherein the first rectangular light-transmitting plate having a reflection pattern group in the central part substantially parallel to the long side is reflected on both side parts similarly divided into three parts. In the combined light guide plate overlaid on the second rectangular translucent plate having a pattern, LEDs are arranged on both end surfaces of the long side, the reflective material on both end surfaces of the short side, the reflective material and the back plate on the entire top surface, and the entire bottom surface An LED-type double-type display board, which is composed of an outer peripheral frame that houses a light diffusion plate, display film, and surface plate, and that houses the LED power circuit related equipment. The united light guide plate according to claim 2, comprising a central double-type united light guide plate in which LEDs are transferred and arranged on both cut end surfaces of the central part where the non-engraved portions on both sides of the first rectangular translucent plate are cut and removed. Characteristic LED type center double type display board. The united light guide plate according to claim 3, wherein the translucent plate of three translucent plates in which a reflecting material is disposed on both cut end surfaces of both side portions obtained by cutting and removing the non-engraved portion of the central portion of the second rectangular translucent plate. It is composed of a combined light guide plate
LED stacked joint display. 2. The LED type display panel according to claim 1, wherein the opposite side of the rectangular one-side LED light guide plate having a substantially elongated triangular reflection pattern group extending from the side on which the LED is arranged to the opposite side is butt-joined to each other. Reflector and back plate, and light diffuser plate, display film and front plate are arranged on the entire bottom surface.
LED type butt-type display board, which is integrated with an outer frame body that houses power circuit related equipment inside. 6. An LED-type sequentially stacked display panel comprising a combined light guide body in which the LED side of another one-side LED light guide plate is partially overlapped on the opposite side of the one-side LED light guide plate according to claim 5 . Respective elongated combined light guides obtained by reducing each of the combined light guide plates of the double type, center double type, lap joint type, and sequentially stacked type described in claim 2, 3, 4, and 6 in the long side direction; LED placed in the middle part, each long side end face, short side end face where no LED is placed, reflective material placed on the entire top surface, light diffusing material and surface material placed on the entire bottom surface, and LED power supply circuit related equipment LED type elongated illuminator of double type, central double type, lap joint type, and sequential lap type, characterized by an integral construction with an exterior body that fits inside. One or more open notches or closed notches on both sides of one or both sides of the long side of the elongated flat plate light guide having a reflection pattern, or both short sides
The LED, the reflective material arranged on the long side end face and the reflection pattern plane, the light diffusing material and the surface material arranged on the other plane, and the exterior body that houses the LED power circuit related equipment inside LED-type notch type lighting fixture. In the flat light guide according to claim 8, LEDs are arranged on both short sides of the light guide material, and LEDs are also arranged in open notches or closed notches attached to both end surfaces or inner surface portions of the long sides, A light diffusing material and a surface material are arranged on the back surface of the plane having the reflection pattern, and a reflection material is arranged on both sides of the notch and the reflection pattern plane. LED-type notched flat type lighting fixture. The flat light guide according to claim 8, wherein both short sides of the flat light guide are provided.
An LED is arranged and one long side end face has a notch and a reflection pattern in which one or more LEDs are arranged, a reflecting material is provided on the long side end face and both side planes, and a light diffusing material is provided on the entire non-notched long side end face. LED type notch type lighting fixture, which is made up of an exterior body that houses LED power supply circuit-related equipment inside.

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