JP2002055632A - Light-emitting display device - Google Patents
Light-emitting display deviceInfo
- Publication number
- JP2002055632A JP2002055632A JP2000239726A JP2000239726A JP2002055632A JP 2002055632 A JP2002055632 A JP 2002055632A JP 2000239726 A JP2000239726 A JP 2000239726A JP 2000239726 A JP2000239726 A JP 2000239726A JP 2002055632 A JP2002055632 A JP 2002055632A
- Authority
- JP
- Japan
- Prior art keywords
- light
- display device
- emitting display
- emitting
- shielding plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
- G09F27/008—Sun shades, shades, hoods or louvres on electronic displays to minimise the effect of direct sun light on the display
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は主として屋外で使用
する発光表示装置に係り、特に光源が発光ダイオード
（ＬＥＤ）である発光表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting display device mainly used outdoors, and more particularly to a light emitting display device in which a light source is a light emitting diode (LED).
【０００２】[0002]
【従来の技術】屋外設置用の発光表示装置の一つとして
光源をＬＥＤとした発光表示装置が用いられている。Ｌ
ＥＤは半永久的な寿命を有し、低電圧で駆動可能であっ
て回路構成が簡単になり電力消費、発熱が少なく安全か
つ経済的であること、更には最近では発色も従来の赤、
青、緑以外の中間色や白色の発色も可能となっている等
の理由により、ＬＥＤを用いた発光表示装置の用途は今
後益々増加するものと考えられる。2. Description of the Related Art A light-emitting display device using an LED as a light source is used as one of the light-emitting display devices for outdoor installation. L
EDs have a semi-permanent life, can be driven at low voltage, have a simple circuit configuration, consume less power, generate less heat, and are more economical.
It is considered that the application of the light emitting display device using the LED will increase more and more in the future because, for example, an intermediate color other than blue and green and a white color can be developed.
【０００３】ＬＥＤを用いた発光表示装置の用途として
は屋外看板等のように地面に設置されたり、所定の構造
物に固定するものだけでなく、最近では行き先表示装置
等として、バス等の車両に取り付けられる事例も増加し
ている。Light-emitting display devices using LEDs are used not only for installation on the ground such as outdoor signboards or for fixing to predetermined structures, but also recently for vehicles such as buses as destination display devices. The number of cases where it can be attached to the Internet is increasing.
【０００４】[0004]
【発明が解決しようとする課題】図４及び図５はＬＥＤ
を用いた従来の発光表示装置の構成を示す。発光表示装
置は基板３上に多数のＬＥＤ１０を配置し、各ＬＥＤ１
０を適宜点灯或いは消灯することにより表示装置全体で
は意味のある図形や文字を表示するものである。光量及
び光源からの入射角が安定している屋内でこの発光装置
を用いる場合には別段問題無いが、太陽光のある屋外で
は光量を増して視認性を高めるため各ＬＥＤ１０は高密
度に配置される必要がある。FIGS. 4 and 5 show an LED.
1 shows a configuration of a conventional light-emitting display device using. The light emitting display device has a large number of LEDs 10 arranged on a substrate 3 and each LED 1
By turning on or off 0 as appropriate, meaningful figures and characters are displayed on the entire display device. There is no particular problem when using this light-emitting device indoors where the light amount and the incident angle from the light source are stable, but in the case of sunlight, the LEDs 10 are arranged at high density to increase the light amount and enhance visibility. Need to be
【０００５】ここで、ＬＥＤ１０は円筒形の本体部１０
ａの先端に半球部１０ｂが連接した構成となっている。
発光はこの本体部１０ａと半球部１０ｂとの連接部近傍
にあり、このため半球部は１０ｂはレンズとしての機能
も有している。なお、図中符号ＬＰで示す想像線は各Ｌ
ＥＤ１０の発光部の位置を示す。Here, the LED 10 has a cylindrical main body 10.
The configuration is such that the hemispherical portion 10b is connected to the tip of a.
Light emission is near the connection between the main body portion 10a and the hemispherical portion 10b. Therefore, the hemispherical portion 10b also has a function as a lens. The imaginary line indicated by the symbol LP in the drawing is L
3 shows the position of the light emitting unit of the ED 10.
【０００６】上記の構成のＬＥＤ１０を高密度で配置す
ると、発光部ＬＰの位置が半球部１０ｂの底部に位置し
ているため、各ＬＥＤ１０の発光は隣接するＬＥＤの半
球部に遮られ、その視野角が、各ＬＥＤ１０が本来有す
る視野角に比較して図示のα１で示す角度に限定されて
しまい、発光表示装置としての視認可能な範囲を限定し
てしまう。因みに個々のＬＥＤ１０の本来の視野角は１
６０°から１７０°程度あり、図４に示す高密度配置の
場合その視野角α１は約１００°程度に限定されてしま
う。When the LEDs 10 having the above configuration are arranged at a high density, the position of the light emitting portion LP is located at the bottom of the hemispherical portion 10b. The angle is limited to the angle indicated by α1 in the drawing as compared with the viewing angle that each LED 10 originally has, which limits the visible range of the light emitting display device. By the way, the original viewing angle of each LED 10 is 1
The viewing angle α1 is limited to about 100 ° in the high-density arrangement shown in FIG.
【０００７】また屋外で使用する場合には表示面に対し
て直射日光が当たらないようにする必要がある。即ちＬ
ＥＤ１０の光量は直射日光に比較して僅かであるため、
もし日光が表示面に直接当たると表示内容の視認が困
難、或いは殆ど不可能になってしまう。When used outdoors, it is necessary to prevent the display surface from being exposed to direct sunlight. That is, L
Since the light intensity of the ED10 is small compared to direct sunlight,
If the sunlight directly hits the display surface, it is difficult or almost impossible to see the display contents.
【０００８】図５は太陽光ＳＬがＬＥＤ１０に対して直
接当たるのを防止するための遮光板を配置した状態を示
す。遮光板１１は各ＬＥＤ１０の配列に対して、水平方
向に各ＬＥＤ１０の列を仕切るように水平に配置され
る。これにより発光表示装置上方から照射される太陽光
ＳＬがＬＥＤ１０に直接当たらないようになっている。
太陽光の直接照射を避けるためには遮光板１１の突出し
量を多く取る必要がある。このため図４に示す密度で配
置されたＬＥＤの場合であっても各ＬＥＤ１０の視野角
α２は前記視野角α１の半分若しくはそれ以下と、更に
狭くなってしまう。FIG. 5 shows a state where a light shielding plate for preventing sunlight SL from directly hitting the LED 10 is arranged. The light-shielding plate 11 is arranged horizontally with respect to the arrangement of the LEDs 10 so as to partition the rows of the LEDs 10 in the horizontal direction. This prevents sunlight SL emitted from above the light emitting display device from directly hitting the LED 10.
In order to avoid direct irradiation of sunlight, it is necessary to increase the amount of protrusion of the light shielding plate 11. For this reason, even in the case of LEDs arranged at the density shown in FIG. 4, the viewing angle α2 of each LED 10 is further narrowed to half or less of the viewing angle α1.
【０００９】一般的に発光表示装置は、これを見る者の
目の位置（目線）よりも高い位置に配置されることが多
いので、視野角の減少、特に遮光板１１による視野角の
減少は下方からの表示内容の視認を極めて困難にするこ
とになる。In general, the light emitting display device is often arranged at a position higher than the position (eye line) of a viewer's eyes, so that the viewing angle, especially the viewing angle due to the light shielding plate 11, is reduced. This makes it extremely difficult to visually recognize the display content from below.
【００１０】[0010]
【課題を解決するための手段】本発明は上述の問題点に
鑑み構成した発光表示装置であって、同表示装置を構成
するＬＥＤ等の発光体は、発光部近傍で半球部を削除し
た形状で、かつ発光部がほぼ平面に形成され、これによ
り相互に隣接するＬＥＤの半球部が他のＬＥＤの視野角
を狭めないように形成される。SUMMARY OF THE INVENTION The present invention is directed to a light-emitting display device constructed in view of the above-mentioned problems, wherein a light-emitting body such as an LED constituting the display device has a shape in which a hemispherical portion is deleted near a light-emitting portion. In addition, the light emitting portion is formed substantially in a plane, whereby the hemispherical portions of the LEDs adjacent to each other are formed so as not to narrow the viewing angles of the other LEDs.
【００１１】また、太陽光の直接照射を避ける遮光板
は、発光表示装置の下方に向かって斜め前方に切り欠か
れた斜面部が形成され、この斜面部の形成角度に対応し
て、発光表示装置の下方向に対する視野角を拡大するよ
う構成したことを特徴とする発光表示装置である。Further, the light-shielding plate for avoiding direct irradiation of sunlight has a slope portion cut diagonally forward toward the lower side of the light-emitting display device, and the light-emitting display device corresponds to the formation angle of the slope portion. A light emitting display device characterized in that the viewing angle with respect to the downward direction of the device is configured to be enlarged.
【００１２】[0012]
【発明の実施の形態】発光表示装置の表示面を形成する
ＬＥＤ等の発光体（以下実施例も含め「ＬＥＤ」で説明
する）は発光面がほぼ平坦に形成されており、各ＬＥＤ
を高密度で配置しても個々のＬＥＤの視野角が減少しな
いようになっている。また発光面は微小な凹凸加工（曇
り加工）を施すことにより発光面で外来光が反射するの
を防止して視認性を高めるようにしておくことが望まし
い。BEST MODE FOR CARRYING OUT THE INVENTION A luminous body such as an LED which forms a display surface of a light-emitting display device (hereinafter also referred to as "LED" including the embodiments) has a substantially flat luminous surface.
Are arranged so that the viewing angles of the individual LEDs do not decrease. In addition, it is desirable that the light emitting surface is subjected to fine unevenness processing (clouding processing) to prevent external light from being reflected on the light emitting surface and to enhance visibility.
【００１３】次に遮光板を配置する構成において、遮光
する光が太陽光である場合には各遮光板は発光表示装置
の下方に向かって斜め前方に切り欠かれた斜面部が形成
され、この遮光板により外来光である太陽光等を遮光す
ると共に、主として発光表示装置下方の視野角を広げ、
当該発光表示装置下方からの視認性を向上させる。Next, in the configuration in which the light-shielding plates are arranged, when the light to be shielded is sunlight, each light-shielding plate has a slope portion cut diagonally forward toward the lower side of the light-emitting display device. While shielding external light such as sunlight by a light-shielding plate, the viewing angle mainly below the light-emitting display device is widened,
The visibility from below the light emitting display device is improved.
【００１４】[0014]
【実施例】以下本発明の実施例を図面を参考に具体的に
説明する。図１は本発明の第１の実施例を示す。図中
（Ａ）において、符号１は発光表示装置の表示面を構成
する発光体たるＬＥＤである。このＬＥＤ１を基板３に
多数配列することにより発光表示装置３が構成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. In FIG. 1A, reference numeral 1 denotes an LED, which is a light-emitting body and constitutes a display surface of a light-emitting display device. The light emitting display device 3 is configured by arranging a large number of the LEDs 1 on the substrate 3.
【００１５】上記ＬＥＤ１は従来型ＬＥＤ１０の半球部
１０ａが削除された形状となっており、発光部ＬＰによ
って発光する部分が平面（以下「発光面」とする）１ａ
として形成されている。このように各ＬＥＤ１が平坦な
発光面１ａにより光を放射するため、各ＬＥＤ１を高密
度に配置しても各ＬＥＤの視野角α３は１６０°〜１７
０°と非常に大きくなり視認性が向上する。The LED 1 has a shape in which the hemispherical portion 10a of the conventional LED 10 is omitted, and a portion that emits light by the light emitting portion LP is a flat surface (hereinafter referred to as a “light emitting surface”) 1a.
It is formed as. As described above, since each LED 1 emits light from the flat light emitting surface 1a, the viewing angle α3 of each LED is 160 ° to 17 even if the LEDs 1 are arranged at high density.
This is extremely large at 0 °, and the visibility is improved.
【００１６】なお平坦な発光面１ａとすることにより外
来光はこの平坦面で反射するため、同図（Ｂ）に示すよ
うに発光面１ａの表面に微細な凹凸加工１ａａを加えた
曇り加工を行うことによって外来光の反射を抑えるよう
にしておくことが望ましい。Since the external light is reflected on the flat light emitting surface 1a by forming the flat light emitting surface 1a, as shown in FIG. It is desirable to suppress the reflection of extraneous light by performing the above.
【００１７】図２は第２の実施例を示す。この実施例は
図１に示すＬＥＤ１の配列に対して遮光板を配置した構
成を示す。遮光板２は基板３に対して配置された多数の
ＬＥＤ１の群のうち各ＬＥＤ群を水平方向に分けるよう
に水平に配置される。遮光板２は、上下のＬＥＤ１の間
に配置された支持部２ａから各ＬＥＤ１の発光面１ａの
前方に庇部２ｂが展出した構成となっており、この庇部
２ｂは発光表示装置４の前方下部に向かって斜めに形成
された斜面２ｂａが形成され、この斜面２ｂａの形成に
より発光表示装置４の下方から表示面を視認する者の側
に視野角α４が広がるよう構成されている。FIG. 2 shows a second embodiment. This embodiment shows a configuration in which a light shielding plate is arranged for the arrangement of the LEDs 1 shown in FIG. The light-shielding plate 2 is arranged horizontally so as to divide each LED group in the horizontal direction among a group of a large number of LEDs 1 arranged on the substrate 3. The light-shielding plate 2 has a configuration in which an eaves portion 2b is extended from a support portion 2a disposed between the upper and lower LEDs 1 in front of a light emitting surface 1a of each LED 1. The eaves portion 2b of the light-emitting display device 4 An inclined surface 2ba formed obliquely toward the lower front is formed, and by forming the inclined surface 2ba, the viewing angle α4 is configured to be widened toward a person who views the display surface from below the light emitting display device 4.
【００１８】上記斜面の２ｂａの形成角Ａと、庇部２ｂ
の展出量Ｗ１との設定量により太陽光ＳＬ等の外部光の
遮蔽、視野角α３、発光表示装置４の下方からの視認範
囲が決まる。即ち発光表示装置４の配置位置、表示装置
を視認する者の位置や目線等を総合的に考慮して前記形
成角Ａと、庇部２ｂの展出量Ｗ１を決めればよい。また
形成角Ａをもって形成される斜面は表示装置を視認する
者の目の位置に向かって斜めに形成することにより、こ
の視認する者の側の視野角が広がるよう形成される。The formation angle A of the slope 2ba and the eaves 2b
Of the external light such as the sunlight SL, the viewing angle α3, and the visible range from below the light-emitting display device 4 are determined by the set amount of the projection amount W1. That is, the formation angle A and the projection amount W1 of the eaves portion 2b may be determined in consideration of the arrangement position of the light emitting display device 4, the position of the person who views the display device, the line of sight, and the like. In addition, the slope formed with the formation angle A is formed so as to be inclined toward the position of the eyes of the viewer who views the display device, so that the viewing angle on the side of the viewer is widened.
【００１９】図３は第２の実施例を示す。符号５は遮光
板であるが、図２に示す遮光板１とは次の点で相違す
る。先ず図示の遮光板５は、図２に示す遮光板１の斜面
１ｂａに対応する斜面も含め、その幅（肉厚）Ｗ２が各
ＬＥＤ１の配置間隔と等しく形成されている。このため
発光表示装置４を正面から見た場合でも遮光板によって
ＬＥＤ１の発光面１ａの一部が隠れることはなく、正面
からの視認性が向上する。FIG. 3 shows a second embodiment. Reference numeral 5 denotes a light shielding plate, which differs from the light shielding plate 1 shown in FIG. 2 in the following point. First, the illustrated light shielding plate 5 is formed such that its width (thickness) W2 is equal to the arrangement interval of the LEDs 1 including the slope corresponding to the slope 1ba of the light shielding plate 1 shown in FIG. Therefore, even when the light emitting display device 4 is viewed from the front, a part of the light emitting surface 1a of the LED 1 is not hidden by the light shielding plate, and the visibility from the front is improved.
【００２０】遮光板５は前記遮光板１と同様ＬＥＤ１の
間隙に位置する支持部５ａと、この支持部５ａからＬＥ
Ｄ１の前方に展出する庇部５ｂとから成っている。また
この庇部５ｂは、庇部上面の斜面５ｂａと、庇部下面の
斜面５ｂｂとを有している。このうち裏面の斜面５ｂｂ
の基部はカットバック部５ｂｃとして上方に向かった切
り欠きを形成することにより表裏の斜面５ｂａ、５ｂｂ
を含めて庇部５ｂを含めた遮光板５全体が間隙ｗ２内に
位置するよう構成されている。The light-shielding plate 5 includes a supporting portion 5a located in the gap between the LEDs 1 similarly to the light-shielding plate 1, and an LE from the supporting portion 5a.
And an eaves portion 5b extending forward of D1. Further, the eaves portion 5b has a slope 5ba on the upper surface of the eaves portion and a slope 5bb on the lower surface of the eaves portion. Of these, the slope 5bb on the back
Is formed as a cut-back portion 5bc with a notch directed upward, thereby forming front and back slopes 5ba, 5bb.
The entire light-shielding plate 5 including the eaves portion 5b is located in the gap w2.
【００２１】前記斜面のうち庇部裏面の斜面５ｂｂの表
面は反射面となっており、発光表示装置４の下部から視
認する場合、このＬＥＤ１の発光部ＬＰからの光の一部
はこの反射面を介して表示を視認する者に反射するた
め、視認する者にとっては輝度か増して視認がより容易
となる。なお、この場合水平方向に隣接するＬＥＤ１の
光の反射により、表示全体として、色が滲んだり、形状
がやや不明確となる等の場合には水平方向に隣接する各
ＬＥＤの間に仕切（図示せず）を形成するようにしても
よい。The surface of the slope 5bb on the back surface of the eaves portion of the slope is a reflection surface, and when viewed from below the light emitting display device 4, a part of the light from the light emitting portion LP of the LED 1 is reflected on the reflection surface. Since the display is reflected to a person who visually recognizes the display, the luminance increases for the person who visually recognizes the image, and the visual recognition becomes easier. In this case, if the color of the entire display is blurred or the shape is slightly unclear due to the reflection of the light of the LED 1 adjacent in the horizontal direction, the partition between the LEDs adjacent in the horizontal direction (FIG. (Not shown).
【００２２】以上、本発明を発光体がＬＥＤである場合
を例に説明したが、発光体をＬＥＤに限定する趣旨では
なく、上述の構成が可能であれば小型ランプ等、発光体
が別のものであってもよい。また図示の例ではＬＥＤ以
外の外来光として太陽光を例として説明したため、遮光
板は水平方向に配置した構成となったが、遮蔽すべき外
来光が例えば装置の側面から照射される場合には、遮光
板はこの外来光を遮蔽すべく、例えば鉛直方向に配置さ
れることになる。つまり遮蔽すべき外来光の照射方向に
より遮光板の配置は決定される。Although the present invention has been described with reference to the case where the illuminant is an LED, the invention is not limited to the LED. If the above-described configuration is possible, another illuminant such as a small lamp may be used. It may be something. Also, in the illustrated example, sunlight was described as an example of external light other than LEDs, so the light-shielding plate was arranged in the horizontal direction. However, when external light to be shielded was emitted from the side of the device, for example, The light shielding plate is arranged, for example, in a vertical direction to shield the extraneous light. That is, the arrangement of the light-shielding plate is determined by the irradiation direction of the external light to be shielded.
【００２３】[0023]
【発明の効果】以上、本発明を具体的に説明したよう
に、本発明によれば、発光表示装置の表示面を形成する
各発光体の表面がほぼ平坦であるため、発光体を高密度
で配置しても隣接する発光体がその発光の邪魔になるこ
とはなく、発光表示装置全体として高い視認性を確保す
ることができる。As described above, according to the present invention, since the surfaces of the respective luminous bodies forming the display surface of the light emitting display device are substantially flat, the luminous bodies can be formed at a high density. Even if the light emitting device is disposed, the adjacent light emitting body does not obstruct the light emission, and high visibility as a whole of the light emitting display device can be secured.
【００２４】また遮蔽板には斜面が形成されることによ
り、特定方向から照射される外来光の遮光と、発光表示
板下方等、特定の位置における視認性とを両立させるこ
とが可能となる。Further, by forming a slope on the shielding plate, it is possible to achieve both the shielding of extraneous light emitted from a specific direction and the visibility at a specific position such as below the light emitting display plate.
【図１】（Ａ）は本発明の第１の実施例を示す発光表示
装置の側面部分図、（Ｂ）は（Ａ）のＡ−Ａ線による視
図である。FIG. 1A is a partial side view of a light emitting display device according to a first embodiment of the present invention, and FIG. 1B is a view along line AA in FIG.
【図２】本発明の第２の実施例を示す発光表示装置の側
面部分図である。FIG. 2 is a partial side view of a light emitting display device according to a second embodiment of the present invention.
【図３】本発明の第３の実施例を示す発光表示装置の側
面拡大部分図である。FIG. 3 is an enlarged partial side view of a light emitting display device according to a third embodiment of the present invention.
【図４】発光表示装置の従来例を示す発光表示装置の側
面部分図である。FIG. 4 is a partial side view of a light emitting display device showing a conventional example of the light emitting display device.
【図５】図４に示す発光表示装置の従来例に遮光板を配
置した状態を示す発光表示装置の側面部分図である。FIG. 5 is a partial side view of the light emitting display device shown in FIG. 4 in which a light shielding plate is arranged in the conventional example.
１ ＬＥＤ（発光体） １ａ 発光面 １ａａ 曇り加工 ２ 遮光板 ２ｂ 庇部 ２ｂａ 斜面 ３ 基板 ４ 発光表示装置 ５ 遮光板 ５ｂａ 表面の斜面 ５ｂｂ 裏面の斜面（反射面） １０ｂ 半球部 α１、α２、α３、α４ 視野角 ＬＰ 発光部 ＳＬ 太陽光 DESCRIPTION OF SYMBOLS 1 LED (light emitting body) 1a Light emitting surface 1aa Fogging process 2 Light shielding plate 2b Eave portion 2ba Slope 3 Substrate 4 Light emitting display device 5 Light shielding plate 5ba Slope on the surface 5bb Slope on the back surface (reflection surface) 10b Hemisphere portion α1, α2, α3, α4 Viewing angle LP Light emitting unit SL Sunlight
───────────────────────────────────────────────────── フロントページの続き (72)発明者 宇尾野 三夫 東京都多摩市桜ヶ丘１丁目60番５号 株式 会社スターレット内 (72)発明者 井上 宏之 東京都多摩市桜ヶ丘１丁目60番５号 株式 会社スターレット内 Ｆターム(参考） 5C094 AA01 AA12 BA25 ED15 FA04 5F041 AA14 DB09 DC07 DC23 EE24 FF04 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Mitsuo Uno 1-60-5 Sakuragaoka, Tama-shi, Tokyo Co., Ltd. Inside Starlet Co., Ltd. (72) Inventor Hiroyuki Inoue 1-60-5 Sakuragaoka, Tama-shi, Tokyo Starlet Co., Ltd. F term (reference) 5C094 AA01 AA12 BA25 ED15 FA04 5F041 AA14 DB09 DC07 DC23 EE24 FF04
Claims (7)
示面が構成され、かつこれらの発光体を点灯或いは消灯
することにより表示面に所定の情報を表示するよう構成
した装置において、各発光体の発光面はほぼ平坦に形成
されていることを特徴とする発光表示装置。1. An apparatus in which a display surface is formed by arranging a large number of light emitters, and a predetermined information is displayed on the display surface by turning on or off these light emitters. A light-emitting display device, wherein a light-emitting surface of a body is formed substantially flat.
ることを特徴とする請求項１記載の発光表示装置。2. The light-emitting display device according to claim 1, wherein the surface of the light-emitting surface is subjected to fogging.
請求項１又は２記載の発光表示装置。3. The light-emitting display device according to claim 1, wherein the light-emitting body is an LED.
光板が配置され、かつ遮光板は表示面を遮光するよう庇
部が形成され、庇部は、当該表示面を視認する者が位置
する側に向かって斜めに形成された斜面を有することに
より当該視認をする者の側に向かって各発光体の視野角
が広がるよう構成されていることを特徴とする請求項１
乃至３の何れかに記載の発光表示装置。4. A light-shielding plate is arranged so as to partition each line with respect to a line of light-emitting bodies, and the light-shielding plate has an eave portion formed so as to shield a display surface, and the eaves portion is a person who visually recognizes the display surface. The viewing angle of each luminous body is widened toward the side of the viewer by having an inclined surface formed obliquely toward the side where is located.
The light emitting display device according to any one of claims 1 to 3.
側も斜面として形成され、かつこの裏面の斜面は反射面
として形成されていることを特徴とする請求項４記載の
発光表示装置。5. The light-emitting display device according to claim 4, wherein the eaves of the light-shielding plate are also formed with a back surface facing the slope, and the back surface is formed as a reflection surface. .
展出しかつ斜面を有する庇部も含め、その肉厚が各発光
体の配置間隔とほぼ等しく形成されていることを特徴と
する請求項４又は５記載の発光表示装置。6. The light-shielding plate is characterized in that its thickness, including the support portion and the eaves portion protruding from the support portion and having a slope, is formed to be substantially equal to the arrangement interval of the light-emitting members. The light emitting display device according to claim 4 or 5, wherein
等、表示面上方から照射される外来光であって、遮光板
は各発光体の配置を水平方向に仕切るよう水平に配置さ
れていることを特徴とする請求項４乃至６の何れかに記
載の発光表示装置。7. The light to be shielded by the light-shielding plate is extraneous light such as sunlight or the like radiated from above the display surface, and the light-shielding plate is disposed horizontally so as to partition the arrangement of the light-emitting members in the horizontal direction. The light-emitting display device according to claim 4, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000239726A JP2002055632A (en) | 2000-08-08 | 2000-08-08 | Light-emitting display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000239726A JP2002055632A (en) | 2000-08-08 | 2000-08-08 | Light-emitting display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002055632A true JP2002055632A (en) | 2002-02-20 |
Family
ID=18731216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000239726A Pending JP2002055632A (en) | 2000-08-08 | 2000-08-08 | Light-emitting display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002055632A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004354476A (en) * | 2003-05-27 | 2004-12-16 | Nagoya Electric Works Co Ltd | Display unit using led |
| JP2014107463A (en) * | 2012-11-29 | 2014-06-09 | Mitsubishi Electric Corp | Display device |
| US20180130385A1 (en) * | 2016-11-10 | 2018-05-10 | Media Resources Inc. | System, method and apparatus for directed led display |
| CN108074497A (en) * | 2016-11-10 | 2018-05-25 | 媒体资源股份有限公司 | For orienting the system of light-emitting diode display, method and apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910465A (en) * | 1972-06-02 | 1974-01-29 | ||
| JPH01170983A (en) * | 1987-12-25 | 1989-07-06 | Alps Denshi Kogyo Kk | Cover with louver for electrooptic display device |
| JPH0567811A (en) * | 1991-09-07 | 1993-03-19 | Rohm Co Ltd | Light emitting diode lamp |
| JPH0588622A (en) * | 1991-09-30 | 1993-04-09 | Toshiba Lighting & Technol Corp | Display device |
| JPH08185130A (en) * | 1994-12-30 | 1996-07-16 | Takiron Co Ltd | Dot matrix light emitting display with light shielding louver |
-
2000
- 2000-08-08 JP JP2000239726A patent/JP2002055632A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4910465A (en) * | 1972-06-02 | 1974-01-29 | ||
| JPH01170983A (en) * | 1987-12-25 | 1989-07-06 | Alps Denshi Kogyo Kk | Cover with louver for electrooptic display device |
| JPH0567811A (en) * | 1991-09-07 | 1993-03-19 | Rohm Co Ltd | Light emitting diode lamp |
| JPH0588622A (en) * | 1991-09-30 | 1993-04-09 | Toshiba Lighting & Technol Corp | Display device |
| JPH08185130A (en) * | 1994-12-30 | 1996-07-16 | Takiron Co Ltd | Dot matrix light emitting display with light shielding louver |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004354476A (en) * | 2003-05-27 | 2004-12-16 | Nagoya Electric Works Co Ltd | Display unit using led |
| JP4575650B2 (en) * | 2003-05-27 | 2010-11-04 | 名古屋電機工業株式会社 | Display unit using LED |
| JP2014107463A (en) * | 2012-11-29 | 2014-06-09 | Mitsubishi Electric Corp | Display device |
| US20180130385A1 (en) * | 2016-11-10 | 2018-05-10 | Media Resources Inc. | System, method and apparatus for directed led display |
| CN108074497A (en) * | 2016-11-10 | 2018-05-25 | 媒体资源股份有限公司 | For orienting the system of light-emitting diode display, method and apparatus |
| CN108074497B (en) * | 2016-11-10 | 2022-08-30 | 媒体资源股份有限公司 | Systems, methods, and apparatus for orienting LED displays |
| US11488501B2 (en) * | 2016-11-10 | 2022-11-01 | Media Resources Inc. | System, method and apparatus for directed LED display |
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