JP5496712B2 - ELECTRONIC DISPLAY PANEL AND ELECTRIC DISPLAY DEVICE HAVING THE SAME - Google Patents

Description

  The present invention relates to an electric display panel in which a large number of point light sources are arranged, and an electric display device including the same.

  It is preferable that the signboard arranged on the side of the guardrail of the road has a small lateral width with respect to the road traveling direction in consideration of the driving performance of the car and the human walking ability. For this reason, Patent Document 1 proposes to install an electric display panel in which LEDs are arranged so as to be inclined with respect to the road traveling direction.

  In this Patent Document 1, when LEDs are arranged on an electric display panel, the direction of the LED is set in advance so that strong light is emitted to a vehicle far away from the electric display panel using the directivity of the light of the LED. It is set. By setting in this way, light (leakage light) is diffused from a side of the LED with a wide light emitting area to the vehicle approaching the electric display panel although it is weak light. Accordingly, it is possible to efficiently recognize the display by the LED light in both the vehicle far from the road and the vehicle approaching the road, and the viewing range is widened.

JP 2008-191641 A

  By the way, such an electric display board is effective when moving from one direction of the road toward the electric display board, but even when moving from two or more directions toward the electric display board, If the display contents can be recognized efficiently in this way, it is preferable because the range of use of the electric display panel can be further expanded.

  In view of the above fact, the present invention has as its first object to provide an electric display panel having a wide viewing range in each direction even from a plurality of directions, and an electric display device including the same. It is a second object to provide an electric display panel with a limited viewable range and an electric display device including the same.

The invention according to claim 1 is a one-way point light source group composed of a large number of point light sources visible from one direction, a multi-direction point light source group composed of a large number of point light sources visible from another direction, and the one direction. A first housing provided around the point light source group to limit a light divergence angle range; a second housing provided around the other direction point light source group to limit a light divergence angle range; A first substrate on which the point light source group is disposed; and a second substrate on which the other direction point light source group is disposed. In the one-way point light source group and the other direction point light source group, the point light sources are parallel to each other. Are arranged in a plurality of rows, each row of the one-direction point light source group and each row of the other-direction point light source group are alternately arranged, and the first substrate is in the first housing, The second substrate is press-fitted into the second housing. It has been fixed.

The one direction viewed by the viewer and the other direction may be opposite directions.
In the first aspect of the invention, characters and the like are displayed in one direction by the blinking control of each point light source of the one-way point light source group, and the characters and the like are displayed in the other direction by the blinking control of each point light source of the other-direction point light source group. It is possible to provide an electric display panel that can display

Then, each column of the one-direction point light source group and each column of the other-direction point light source group are alternately arranged. Therefore, it is possible to halve the size of the installed electrical display panel as compared to the case where both the electrical display panel displaying only in one direction and the electrical display panel displaying only in the other direction are installed. This is because a large dimensional reduction effect can be obtained when the interval between adjacent rows of the unidirectional point light source group is widened to increase the visible angle with respect to the direction orthogonal to the display surface of the electric display panel. . In addition, since the first and second housings that limit the light divergence angle range are provided, it is possible to avoid interference between the light from the one-way point light source group and the light from the other-direction point light source group.

In the invention according to claim 2, the one direction is one direction of the passage, and the other direction is the other direction of the passage.
Thereby, a mutually different display or the mutually same display can be performed toward both directions of a channel | path.

According to a third aspect of the present invention, the first housing and the second housing are rectangular in cross section, and the first substrate and the second substrate are on diagonal lines of the first housing and the second housing, respectively. It is press-fitted.

According to a fourth aspect of the present invention, a point light source column direction position of each column of the one-direction point light source group is different from a point light source column direction position of each column of the other direction point light source group.
In the invention according to claim 4, when viewed from one direction and the other direction, the light from each point light source of the one-way point light source group overlaps with the light from each point light source of the other direction point light source group. Is fully avoided.

In the invention according to claim 5, the point light source is an LED.
As a result, the point light source can have a strong directivity, and it is not necessary to incorporate a reflection plate, and the electric display plate can be easily made thin.

Invention of Claim 6 controls blinking of each point light source of the light-emitting display board in any one of Claims 1-5, and the said one direction point light source group and the said other direction point light source group. Control means.
In the invention according to claim 6, characters and the like are displayed in one direction by the blinking control of each point light source of the one-way point light source group, and characters and the like are displayed in the other direction by the blinking control of each point light source of the other-direction point light source group. Can be displayed.
Then, each column of the one-direction point light source group and each column of the other-direction point light source group are alternately arranged. Therefore, it is possible to halve the size of the installed electric display panel as compared with an apparatus that installs both the electric display panel displaying only in one direction and the electric display panel displaying only in the other direction.

According to a seventh aspect of the present invention, the control means controls a first control device that controls blinking of each point light source of the one-way point light source group, and blinking of each point light source of the other direction point light source group. And a second control device.
In the invention according to claim 7, the point light sources of the one-direction point light source group and the point light sources of the other direction point light source group can be controlled by separate control devices.

According to an eighth aspect of the present invention , an elongated housing having a rectangular cross section in which a notch is formed along a longitudinal direction, and a light radiating angle by the notch disposed in a row in the housing along the longitudinal direction of the housing. Light emitting units having a plurality of point light sources having a limited range and a substrate on which the plurality of point light sources are disposed are arranged in a plurality of rows on a base, and the notches are arranged at a housing angle. The cutouts of the respective light emitting units are aligned in the longitudinal direction when viewed from the longitudinal direction of the light emitting unit, and the substrate is fixed by being press-fitted on a diagonal line of the housing , and is adjacent to the back side. A reflection surface for reflecting light from the light emitting unit is formed on the back side of the housing.
In the invention described in 請 Motomeko 8, as seen from the longitudinal direction of the light emitting unit, the position of the notches in each light emitting unit is aligned, dissipation area of light in each light emitting unit is the same. Therefore, an electric display panel that can be visually recognized from a direction in which light is diffused but cannot be visually recognized from a direction in which light is not diffused can be provided. This is particularly effective for displaying an electric light that can be seen by a pedestrian walking from one direction in a passage or the like and cannot be seen by a pedestrian walking from another direction opposite to the one direction. Play.

The housing is a rectangular cross section, the notch on it because it is formed in the housing corners, it is possible to align the notch position easily by placing the light-emitting unit on the base.

Further, the reflecting surface for reflecting light from the light-emitting unit adjacent to the rear side, since it is formed on the rear side of the housings, a part of the light radiated from the point light source of the light emitting unit is reflected by the reflecting surface Is done.
Therefore, it can be visually recognized from the direction in which the light is diffused, and the reflected light can be visually recognized from a direction different from the direction in which the light is diffused and reflected from the reflecting surface.

According to a ninth aspect of the present invention, the reflective surface is formed of a metal foil provided on the back side of the housing.
Thereby, a reflective surface with a high reflectance can be formed on the back side of the housing by a simple method.

The invention according to claim 1 0 includes a sign display board according to claim 8 or 9, and a control means for controlling the flashing of each point light source disposed on the electronic display panel.
Thereby, although it can visually recognize from the direction in which light is diffused, it can be set as the electroluminescent display apparatus which cannot be visually recognized from the direction in which light is not diffused.

The invention of claim 1 1, a one-way point light source group consisting of a large number of point light sources visible from one direction of passage, the front direction point light source groups consisting of a large number of point light sources visible from the front side of the passage A first housing that is provided around the one-way point light source group to limit a light diffusion angle range, and a second housing that is provided around the front-direction point light source group to limit a light diffusion angle range. And two substrates on which the one-way point light source group and the front-direction point light source group are respectively disposed, and in the one-way point light source group and the front-direction point light source group, the point light sources are parallel to each other The rows of the one-direction point light source groups and the rows of the front-direction point light source groups are alternately arranged, and the two substrates are respectively disposed in the first housing. And press-fitted into the second housing. It is fixed by.
In the invention according to claim 1 1, in the position far from the one direction of passage, can visually recognize the electronic display by way point light source group can view the electronic display by the front direction point light source group approaches the passage front .
In addition, it is easier to visually recognize the luminescent color by making the unidirectional point light source group different from the front direction point light source group.

The invention according to claim 1 2, wherein a first housing and said second housing having a rectangular cross section, the two substrates are pressed to each of the first housing and on a diagonal line of the second housing The light divergence angle of the front direction point light source group is limited by the first housing.
Thereby, the light divergence angle of a front direction point light source group can be limited using the 1st housing of a one direction point light source group.

  According to the present invention, an electric display panel having a wide viewing range in each direction even from a plurality of directions, and an electric display device including the same are realized, and an electric display panel having a limited visible range. And an electro-optical display device including the same.

It is a typical top view explaining the example in which the electric display panel concerning a 1st embodiment is installed beside a passage along a passage. It is a perspective view which shows the structure of the electroluminescent display apparatus which concerns on 1st Embodiment. It is side surface sectional drawing of the one-way light emission unit which comprises the electroluminescent display board which concerns on 1st Embodiment. FIG. 3 is an explanatory diagram for explaining the principle that the display content can be visually recognized at one of the remote position and the close position of the light display panel from the one direction and the other direction of the light display panel in the light display panel according to the first embodiment. It is a typical top view explaining that the modification of the electronic display panel concerning a 1st embodiment is installed beside a passage along a passage. It is a top view explaining the arrangement position of LED in 2nd Embodiment. It is a top view explaining the arrangement position of LED in 3rd Embodiment. It is sectional drawing of the arrow 8-8 of FIG. It is side surface sectional drawing of the light emission unit which comprises the electroluminescent display board which concerns on 4th Embodiment. It is a typical top view explaining the electroluminescent display board which concerns on 5th Embodiment. In 6th Embodiment, it is side surface sectional drawing of the unidirectional light emission unit and other direction light emission unit arrange | positioned contact | abutting back-to-back. In 7th Embodiment, it is side surface sectional drawing explaining that the lamp | ramp is arrange | positioned as a point light source. In 7th Embodiment, it is side surface sectional drawing of the one-way light emission unit with which the lamp | ramp is arrange | positioned. It is side surface sectional drawing explaining that the light emission angle range can be adjusted by adjusting the notch dimension of the housing of a one way light emission unit in 7th Embodiment. In 8th Embodiment, it is side surface sectional drawing which shows the electroluminescent display board which forms a floor surface on an upper surface. It is side surface sectional drawing of the light emission unit which comprises the electroluminescent display board which concerns on 9th Embodiment. In 9th Embodiment, it is explanatory drawing explaining the display content of an electroluminescent display board. It is side surface sectional drawing of the light emission unit which comprises the electroluminescent display board which concerns on 10th Embodiment. It is side surface sectional drawing of the light emission unit which comprises the electroluminescent display board which concerns on 11th Embodiment. It is a typical top view explaining the example in which the electric display panel concerning a 12th embodiment is installed beside a passage along a passage. It is explanatory drawing which shows the structure of the electroluminescent display apparatus which concerns on 12th Embodiment. In 12th Embodiment, it is explanatory drawing which shows the electric light display visually recognized from the one side of the channel | path. In 12th Embodiment, it is explanatory drawing which shows the electric light display visually recognized from the other side of the channel | path.

  Hereinafter, embodiments will be described and embodiments of the present invention will be described. In the second and subsequent embodiments, the same components as those already described are denoted by the same reference numerals, and description thereof is omitted.

[First Embodiment]
First, the first embodiment will be described. As shown in FIGS. 1 and 2, the light-emitting display device 10 according to the present embodiment includes a light-emitting display plate 12 according to the present embodiment, and a first control device 14 that controls blinking of each light source of the light-emitting display plate 12. And a second control device 16.

  The electric display panel 12 includes a one-way point light source group 22 in which the central direction of the main light is directed so as to be visible from one direction F of the pedestrian path R, and the other direction B (one direction F And the other direction point light source group 24 in which the center direction of the main light is directed so as to be visible from the opposite direction. The passage R may be a passage outside a building such as a vehicular road, or a pedestrian passage such as an underground passage or a building. The light emission range of the main light is within a range of a predetermined angle α (for example, 15 °) with respect to the light source center direction C as shown in FIG.

  In the present embodiment, each point light source constituting the one-way point light source group 22 and the other-direction point light source group 24 is constituted by an LED (light emitting diode) 26. In the one-way point light source group 22 and the other-direction point light source group 24, the LEDs 26 are arranged in a plurality of rows parallel to each other, and each row of the one-way point light source group 22 and each of the other-direction point light source groups 24 are arranged. The columns are alternately arranged, and the LEDs 26 are arranged in a dot matrix.

  In addition, as shown in FIG. 2, the electric display panel 12 includes a rigid grid-like base 30 formed in a plane and one direction of a strip shape or a strip shape alternately arranged on the base 30. A light emitting unit 32 and an elongated or strip-shaped other-direction light emitting unit 34 are provided.

  The base 30 is obtained by coating a lattice made of, for example, stainless steel. In order to install the one-way light emitting unit 32 and the other-direction light emitting unit 34 on the base 30, they may be fixed with an adhesive, or a holder for detachably holding the light emitting unit is arranged on the base 30 in advance. It may be left.

  The one-way light emitting unit 32 includes a first housing 36 (see also FIG. 3) in which a notch 35 is formed so that LED light is diffused to a viewer side (hereinafter referred to as F side) viewed from one direction F. A board 38 arranged diagonally in the first housing 36, a plurality of LEDs 26 arranged as a point light source array in a line on the board 38, and a harness 28 electrically connected to each LED 26 are provided. The unidirectional point light source group 22 is configured by the LEDs 26 of the unidirectional light emitting units 32.

  As shown in FIG. 3, the substrate surface side (the notch 35 side) is sealed with a front side resin portion 40. On the back side of the substrate, resin sealing portions 41 (see FIG. 2) are formed at both ends. With this configuration, a cavity 42 (see FIG. 3) is formed on the back side of the substrate by the substrate 38, the first housing 36, and the resin sealing portion 41, so that the weight of the one-way light emitting unit 32 is reduced. .

The configuration of the other-direction light emitting unit 34 is the same as that of the one-way light-emitting unit 32, but the one-way light-emitting unit 32 so that the LED light is diffused to the viewer side (hereinafter referred to as B side) viewed from the other direction B. Compared with the base 30, it is arranged at a position inverted 180 ° in a plane parallel to the base 30. The other direction point light source group 24 is configured by the LEDs 26 of the respective other direction light emitting units 34. A notch 39 is formed in the second housing 37 (inverted first housing 36 by 180 °) constituting the other direction light emitting unit 34 so that the LED light is diffused to the B side.
In addition, the column direction position of each LED 26 of the one-way light emitting unit 32 is the same position in each column. The column direction position of each LED 26 of the other direction light emitting unit 34 is also the same position in each column.

  The first control device 14 controls the blinking of the LEDs of the unidirectional point light source group 22, that is, the LEDs 26 of all the unidirectional light emitting units 32. The second control device 16 controls blinking of the LEDs of the other direction point light source group 24, that is, the LEDs 26 of all the other direction light emitting units 34. Therefore, the F side and the B side can be displayed separately. For example, the F side displays a "one-way" character or symbol, and the B side displays a "no entry" character or symbol. You can display.

  Hereinafter, with reference to FIG. 4, the principle that the display contents can be visually recognized from the one direction F and the other direction B of the passage R at the distant position and the close position of the light display panel 12 with the flat light display panel 12 will be described.

  It is assumed that the electric display panel 12 is provided along the ceiling surface 50. Then, the LED 26 </ b> A is disposed at a position P <b> 1 farthest from the viewer M among the LEDs constituting the one-way point light source group 22 when viewed from the one direction F, and the LED 26 </ b> B is disposed at the closest position P <b> 2. Suppose it is placed.

  When the viewer M views the light display panel 12 from one direction F at a position D far from the light display panel 12, both the LED 26A and the LED 26B are visually recognized by the viewer M with the same brightness due to the directivity of the LED 26. . Even if the viewer M views the electronic display panel 12 at a position far from the other direction B, the viewer M is visually recognized by the same principle.

  When the viewer M looks at the light display panel 12 from one direction F at the proximity position N from the light display panel 12, the LED 26A is scattered by scattered light (leakage light) from the wide side wall of the LED 26 grains (light emitting portion). And the LED 26B are sufficiently visible to the viewer M. Even if the viewer M looks at the electronic display panel 12 at a close position from the other direction B, the viewer M can view the same.

  Therefore, when the thin electroluminescent display board 12 is disposed in a plane along the traveling direction of the viewer M, such as the ceiling surface 50 or the side wall surface of the LED 26, the passage R can be seen from both the one direction F and the other direction B. The display content of the electric display panel 12 can be visually recognized at a distant position or a close position. Moreover, since the first control device 14 controls the blinking of the LEDs 26 of the one-way point light source group 22 and the second control device 16 controls the blinking of the LEDs 26 of the other-direction point light source group 24, the F side and the B side Can be displayed with different contents.

  As described above, according to the present embodiment, the single electric display panel 12 can be visually recognized from both the one direction F and the other direction B even at a distant position or a close position. An electric display can be recognized.

  Then, each one-way light emitting unit 32 having the LED 26 of the one-way point light source group 22 and each other direction light-emitting unit 34 having the LED 26 of the other-direction point light source group 24 are arranged in the longitudinal direction of the electric display panel 12 (that is, in the path R). (Along the direction along one direction F and the other direction B). Therefore, compared with the case where an electric display panel displaying only on the F side and an electric display panel displaying only on the B side are installed, the size of the installed electric display panel can be reduced by about half, and a large dimensional reduction effect is obtained. be able to.

  Also, a first housing 36 that is provided around the LED 26 of the one-way point light source group 22 to limit the light divergence angle range, and a light divergence angle range that is provided around the LED 26 of the other-direction point light source group 24 is provided. A second housing 37 to be limited is provided. Thereby, it is possible to avoid interference between the light from the one-direction point light source group 22 and the light from the other-direction point light source group 24.

  In addition, since the base 30 has a lattice shape, the slit effect is generated, the ventilation is good, the wind pressure is strong, and the amount of ice attached due to snow accumulation or the like can be significantly suppressed as compared with the plate-like case.

  Further, the substrate 38 is disposed on a diagonal line of the first housing 36 and the second housing 37, and the direction (angle) of the substrate 38 can be set as the set direction by press-fitting the substrate 38 into the housing.

The one-way light emitting unit 32 and the other-direction light emitting unit 34 may have different pitches, housing lengths, cross-sectional shapes, arrangement numbers, and the like of the LEDs 26.
Further, the emission colors of the LEDs 26 may be the same color, or the emission colors of the one-way light emitting unit 32 and the other-direction light emitting unit 34 may be different from each other. Furthermore, a plurality of colors may be emitted in the one-way light emitting unit 32 or the other-direction light emitting unit 34. Further, the brightness may be distributed.
Further, in the present embodiment, the example in which the passage R can be visually recognized from both the one direction F and the other direction B has been described. However, by adjusting the angle of the directivity direction of the LED 26, the direction is not limited to both directions of the passage. It is possible to display in both directions different from this.
Further, by providing an electric display panel 46 (see FIG. 5) in which only the one-way point light source group 22 is arranged without providing the other-direction point light source group 24, a pedestrian walking from one direction F of the passage R can be used. The electric display board 46 can be visually recognized and cannot be visually recognized by a pedestrian walking from the other direction B of the passage R.

[Second Embodiment]
Next, a second embodiment will be described.
As shown in FIG. 6, in this embodiment, compared to the first embodiment, the LEDs 26 of the other direction light emitting units 34 are positioned in the middle position in the column direction of the LEDs 26 of the one direction light emitting unit 32. The light emitting unit 32 and the other direction light emitting unit 34 are installed on the base 30.
Thereby, when visually recognizing from one direction F and the other direction B of the path R, the light from each LED 26 of the one-way point light source group 22 and the light from each LED 26 of the other-direction point light source group 24 are visually recognized. Is sufficiently avoided.
In addition, as indicated by a two-dot chain line, the unit longitudinal direction position of the end portion of the other direction light emitting unit 34 may not coincide with the unit longitudinal direction of the one direction light emitting unit 32.

[Third Embodiment]
Next, a third embodiment will be described.
As shown in FIGS. 7 and 8, in the present embodiment, the one-way light emitting unit 32 and the other-direction light emitting unit 34 are arranged in contact with each other compared to the first embodiment.
Thereby, LEDs can be arranged at high density without reducing the number of LEDs arranged, and the arrangement configuration of the one-way light emitting unit 32 and the other direction light emitting unit 34 can be simplified.

[Fourth Embodiment]
Next, a fourth embodiment will be described.
As shown in FIG. 9, in this embodiment, compared to the third embodiment, instead of the one-way light emitting unit 32 and the other-direction light emitting unit 34, the one-way point light source group 22 (FIG. 1) is provided in one housing 56. The light emitting units 58 in which the LEDs 26 constituting the reference) and the LEDs 26 constituting the other direction point light source group 24 (see FIG. 1) are arranged are arranged. As in the third embodiment, the housing 56 is formed with notches 35 and 39 (see also FIG. 8), and can display light on both sides of the F side and the B side.
According to this embodiment, even if the number of parts is reduced, the same effect as that of the third embodiment can be obtained.

[Fifth Embodiment]
Next, a fifth embodiment will be described.
As shown in FIG. 10, in this embodiment, the one-way light emitting units 32 are arranged so as to perform light-emitting display with the LED 26 on the F-side on one side 61 of the light-emitting display board 60, and the other-direction light-emitting units 34 are light-emitting displays. The plate 60 is arranged on the opposite side 62 from the one side 61 of the plate 60 so that the LED 26 displays light on the B side.
Thereby, for example, the electric display panel 60 is arranged between the up line and down line of the train, and different contents are displayed on the up line side (one direction side) and the down line side (other direction side). can do. Of course, it is possible to display the same contents.

[Sixth Embodiment]
Next, a sixth embodiment will be described.
As shown in FIG. 11, in this embodiment, the other direction light emission unit 74 whose cross-sectional dimension is smaller than the other direction light emission unit 34 (refer FIG. 8) compared with 3rd Embodiment is provided. The size of the LED 76 disposed in the other direction light emitting unit 74 is equal to or smaller than that of the LED 26 disposed in the one direction light emitting unit 32.
This makes it possible to save energy by changing the side that does not need to be displayed with very high brightness in the other direction, or by reducing the number of light emitting units and the number of columns with simpler symbol marks with fewer dot arrangements. Can be planned.

[Seventh Embodiment]
Next, a seventh embodiment will be described.
As shown in FIGS. 12 and 13, in this embodiment, compared to the first embodiment, a unidirectional light emitting unit 82 and an omnidirectional light emitting unit 84 in which a normal lamp 86 is arranged in the housing instead of the LED 26 are arranged. ing.
As a result, the cost of the electric display panel can be greatly reduced.
As shown in FIGS. 13 and 14, a notch 85 having a large dimension or a notch 95 having a small dimension may be formed in the housing of the one-way light emitting unit 82. In this way, by adjusting the notch size, it is possible to adjust the radiating angle range (θ1, θ2) of the light from the lamp 86.

[Eighth Embodiment]
Next, an eighth embodiment will be described. As shown in FIG. 15, in this embodiment, compared with 1st Embodiment, the pedestrian's walking surface S is formed with the transparent reinforcement material 102, and it is the example which installed the electronic display board 100 in the lower side.
Accordingly, different contents can be displayed on both sides of the F side and the B side, and the displayed contents can be viewed without the pedestrian looking up to the left or right or above.

[Ninth Embodiment]
Next, a ninth embodiment will be described. As shown in FIG. 16, in the present embodiment, compared to the third embodiment, an intermediate point between the one-way light emitting unit 32 and the other-direction light emitting unit 34 in the direction orthogonal to the display surface of the electric display panel. A light emitting unit 112 is provided. Therefore, the one-way light emitting unit 32 and the other-direction light emitting unit 34 are arranged so as to sandwich the intermediate light emitting unit 112 on the back side.
In this embodiment, a pedestrian who has walked from one direction can visually recognize an electric display (for example, “one-way” character 114 shown in FIG. 17) by the one-way light emitting unit 32 from a distance, and is close to the electric display board. When it reaches, an electric display by the intermediate light emitting unit 112 (for example, “⇒” mark 116 shown in FIG. 17) can be visually recognized. Then, a pedestrian who has walked from another direction can visually recognize an electric display (for example, a character 118 of “prohibition of entry” shown in FIG. 17) by the other-direction light emitting unit 34 from a distance, and when reaching near the electric display board, the intermediate An electric display (for example, “⇒” mark 116 shown in FIG. 17) by the light emitting unit 112 can be visually recognized.

[Tenth embodiment]
Next, a tenth embodiment will be described. As shown in FIG. 18, in this embodiment, the one-way light emitting unit 32 and the other-direction light emitting unit 34 are arranged in a direction facing each other instead of back to back, and an intermediate light emitting unit 122 is provided therebetween. Accordingly, the one-way light emitting unit 32 and the other-direction light emitting unit 34 are arranged so as to sandwich the intermediate light emitting unit 122 on the front side.
Also in the present embodiment, the same electroluminescent display as in the ninth embodiment can be performed.

[Eleventh embodiment]
Next, an eleventh embodiment will be described. As shown in FIG. 19, in this embodiment, the one-way light emitting unit 130 and the one-way light emitting unit 132 are arranged so that the front side of the one-way light emitting unit 132 is in contact with the back side of the one-way light emitting unit 130. .
In the one-way light emitting unit 130, compared to the one-way light emitting unit 132, the notch portion on the passage side of the notch 135 of the first housing 136 constituting the one-way light emitting unit 130 so that the light of the LED 26 is visually recognized only at a distance. The dimension of 135T is made small. As a result, the light diffusing range 138 of the unidirectional light emitting unit 130 is narrower than that of the unidirectional light emitting unit 32 (see FIG. 8).
In the one-way light emitting unit 132, compared to the one-way light emitting unit 130, the notch on the passage side of the notch 145 of the second housing 146 constituting the one-way light emitting unit 132 is configured so that the light of the LED 26 can be visually recognized only at a close position. The dimension of the part 145T is adjusted. In this adjustment, the size of the notch 145T may be increased or decreased.
In the present embodiment, the first housing 136 of the one-way light emitting unit 130 prevents the light from the one-way light emitting unit 132 from being dissipated far away. Therefore, a pedestrian walking from one direction visually recognizes only the electric display of the one-way light emitting unit 132 by light in the dispersive range 138 at a distance, and one direction by light in the dispersive range 140 of the one-way light emitting unit 132 at a close position. Only the electric display of the light emitting unit 132 can be visually recognized.

[Twelfth embodiment]
Next, a twelfth embodiment will be described. As shown in FIG. 20, the electro-optic display device 210 according to this embodiment includes an electro-optic display board 212. In this electric display panel 212, a one-way point light source group 222 is provided on a rigid grid-like base 30 (see FIG. 2) formed in a plane. As shown in FIG. 21, the unidirectional point light source group 222 is configured such that the unidirectional light emitting units 232 are arranged at a predetermined interval d in the column direction (arrangement direction). The predetermined interval d is determined based on the diffusion angle of the LED 226 of the one-way light emitting unit 232, the height of the LED 226 from the bottom surface of the first housing 36, and the like.

The unidirectional light emitting unit 232 is compared with the unidirectional light emitting unit 32 described in the first embodiment on the back side of the first housing 36 (opposite to the side where the LED light is diffused, that is, the side where the notch 35 is formed). The aluminum foil 240 is affixed to the side). The aluminum foil 240 forms a reflecting surface 242 that reflects light from the one-way light emitting unit 232 adjacent to the back side. With this configuration, a part of the light diffused from the LED 226 of the one-way light emitting unit 232 is reflected by the reflecting surface 242 on the back side of the first housing of the one-way light emitting unit 232 adjacent to the notch 35 side.
Accordingly, from one direction F of the path R, light emitted from the one-way light emitting unit 232 is displayed as an electric display by the light 233 that is not reflected by the aluminum foil 240 adjacent to the notch 35 side of the one-way light emitting unit 232 (for example, (See FIG. 22).
Then, from the other direction B of the passage R, an electric display (for example, see FIG. 23) is visually recognized by the light 234 reflected by the aluminum foil 240 among the light diffused from the one-way light emitting unit 232.
The electric display content viewed from the other direction B is not the reverse display (upside down display) as if normal characters were reflected by the mirror, but the same electric display content as viewed from the one direction F. This is because, instead of visually recognizing normal surface reflection, an aggregate of dot light (LED light) reflections is viewed from the other direction B.

As described above, in this embodiment, by arranging the unidirectional light emitting units 232 in which the reflection surface 242 is formed on the rear surface side of the housing, the same electronic display contents can be obtained from both directions of the passage (one direction F and the other direction B). It can be visually recognized.
In addition, by attaching the aluminum foil 240 to the back surface of the first housing 36, the reflective surface 242 having a high reflectance can be easily formed.

As shown in FIG. 21, in the one-way light emitting unit 232 </ b> T on the distal end side, only the first housing 36 and the aluminum foil 240 may be provided without providing the LED 226. Moreover, the aluminum foil 240 may not be provided in the one-way light emitting unit 232B on the rear end side.
Moreover, in this embodiment, although aluminum foil 240 is affixed in order to form the reflective surface 242, as long as it can reflect an LED light and can carry out an electroluminescent display, such as a mirror, a reflective tape, a metal plate, it is other than aluminum foil. It can be anything.
Further, in the present embodiment, an example in which the unidirectional light emitting units 232 adjacent in the column direction are separated from each other by a predetermined interval d, but even if the unidirectional light emitting units 232 adjacent in the column direction are close to each other, Of the light radiated from the unidirectional light emitting unit 232, the light display 234 reflected by the aluminum foil 240 makes it possible to visually recognize the electric display (for example, see FIG. 23) from the other direction B of the passage R.

  The embodiments of the present invention have been described above with reference to the embodiments. However, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to these embodiments.

DESCRIPTION OF SYMBOLS 10 Electric light display apparatus 12 Electric light display board 14 1st control apparatus 16 2nd control apparatus 22 Unidirectional point light source group 24 Other direction point light source groups 26, 26A, 26B LED
30 Base 32 Unidirectional light emitting unit (light emitting unit)
36 1st housing 37 2nd housing 46 Lightning display board 56 Housing (1st housing, 2nd housing)
60 Light-Emitting Display Board 74 Other-direction Light-Emitting Unit 86 Lamp 100 Light-Emitting Display Board 130 One-way Light-Emitting Unit (One-way Point Light Source Group)
132 Front direction light emitting unit (front direction point light source group)
136 First housing 146 Second housing 210 Electric display device 212 Electric display panel 222 Unidirectional point light source group 232 Unidirectional light emitting unit 226 LED
240 Aluminum foil 242 Reflecting surface 232N Unidirectional light emitting unit B Other direction F Unidirectional R Path θ1 Divergence angle range θ2 Divergence angle range

Claims (12)

A unidirectional point light source group consisting of a number of point light sources visible from one direction;
Other direction point light source group consisting of a number of point light sources visible from the other direction,
A first housing provided around the unidirectional point light source group to limit a light divergence angle range;
A second housing provided around the other direction point light source group to limit a light divergence angle range;
Two substrates on which the one-direction point light source group and the other-direction point light source group are respectively disposed;
With
In the one-way point light source group and the other-direction point light source group, the point light sources are arranged in a plurality of rows parallel to each other, and each row of the one-way point light source group and each row of the other-direction point light source group Are arranged alternately,
An electric display panel in which the two substrates are fixed by being press-fitted into the first housing and the second housing, respectively.   The electric display panel according to claim 1, wherein the one direction is one direction of the passage, and the other direction is the other direction of the passage.   The lightning according to claim 1 or 2, wherein the first housing and the second housing have a rectangular cross section, and the two substrates are press-fitted on diagonal lines of the first housing and the second housing, respectively. Display board.   The point light source row direction position of each row of the one-way point light source group and the point light source row direction position of each row of the other direction point light source group are different from each other. An electric light display board according to 1.   The electric display board of any one of Claims 1-4 whose said point light source is LED. The electric display board according to any one of claims 1 to 5,
Control means for controlling blinking of each point light source of the one-direction point light source group and the other-direction point light source group;
A light-emitting display device. The control means is
A first control device for controlling blinking of each point light source of the one-way point light source group;
A second control device for controlling blinking of each point light source of the other direction point light source group;
The electric display device according to claim 6, comprising: A rectangular and elongated housing having a notch formed in the longitudinal direction, and a plurality of points arranged in a row in the housing along the longitudinal direction of the housing and the light divergence angle range being limited by the notch. Light emitting units having a light source and a substrate on which the plurality of point light sources are disposed in the housing are arranged in a plurality of rows on a base,
The notches are formed in the corners of the housing, and the positions of the notches of the respective light emitting units are aligned when viewed from the longitudinal direction of the light emitting units,
The substrate is fixed by being press-fitted on a diagonal line of the housing ,
An electric display panel , wherein a reflective surface for reflecting light from a light emitting unit adjacent to the back side is formed on the back side of the housing . The electric display panel according to claim 8 , wherein the reflection surface is formed of a metal foil provided on the back side of the housing. An electric display board according to claim 8 or 9 ,
Control means for controlling blinking of each point light source arranged on the electric light display board;
A light-emitting display device. A unidirectional point light source group consisting of a number of point light sources visible from one direction of the passage;
A front direction point light source group consisting of a number of point light sources visible from the front side of the passage,
A first housing provided around the unidirectional point light source group to limit a light divergence angle range;
A second housing provided around the front-direction point light source group to limit a light divergence angle range;
Two substrates on which the one-way point light source group and the front-direction point light source group are respectively disposed;
With
In the one-way point light source group and the front-direction point light source group, the point light sources are arranged in a plurality of rows parallel to each other, and each row of the one-way point light source group and each row of the front-direction point light source group Are arranged alternately,
An electric display panel in which the two substrates are fixed by being press-fitted into the first housing and the second housing, respectively. The first housing and the second housing have a rectangular cross section, and the two substrates are press-fitted on diagonal lines of the first housing and the second housing, respectively, and the front direction point is formed by the first housing. dissipation angle of the light source groups is limited, electronic display panel of claim 1 1.

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