JPH06186911A - Led display unit - Google Patents

Led display unit

Info

Publication number
JPH06186911A
JPH06186911A JP4335733A JP33573392A JPH06186911A JP H06186911 A JPH06186911 A JP H06186911A JP 4335733 A JP4335733 A JP 4335733A JP 33573392 A JP33573392 A JP 33573392A JP H06186911 A JPH06186911 A JP H06186911A
Authority
JP
Japan
Prior art keywords
led
led display
green
dot
eaves
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.)
Granted
Application number
JP4335733A
Other languages
Japanese (ja)
Other versions
JP2755080B2 (en
Inventor
Akinori Yanaru
昭則 矢鳴
Noriaki Nada
紀明 奈田
Yasunori Idegami
靖則 井手上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4335733A priority Critical patent/JP2755080B2/en
Publication of JPH06186911A publication Critical patent/JPH06186911A/en
Application granted granted Critical
Publication of JP2755080B2 publication Critical patent/JP2755080B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/481—Disposition
    • H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
    • H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
    • H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
    • H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/30—Technical effects
    • H01L2924/301—Electrical effects
    • H01L2924/3025—Electromagnetic shielding

Abstract

PURPOSE:To provide the LED display unit which is easily looked up at even from below while green with low luminance and is easily viewed even outdoors. CONSTITUTION:The LED display unit has one dot of its checkered light emission surface composed of a red LED 2b and a green LED 2a, low-luminance green is arranged closely to the side of a hood 4, whose top surface is tapered to secure upward visibility. Consequently, red LEDs 2a are hardly affected by the sunshine on the side of the hood 4, so the visibility is good even in the daytime and the upward visibility is also improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は情報表示用ＬＥＤ表示器
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED display for displaying information.

【０００２】[0002]

【従来の技術】近年、情報伝達手段としてＬＥＤ表示器
を用いた情報表示板が利用されるようになってきてい
る。従来ＬＥＤ表示器は主に屋内で使用されることが多
かったが、最近では屋外での使用が可能な高輝度タイプ
のＬＥＤ表示器が開発されてきている。2. Description of the Related Art In recent years, an information display board using an LED display has come to be used as an information transmission means. Conventionally, the LED display was mainly used indoors in many cases, but recently, a high-brightness type LED display that can be used outdoors has been developed.

【０００３】以下に図面を参照しながら従来のＬＥＤ表
示器の一例を説明する。図３は従来のＬＥＤ表示器の一
文字分の正面図であり、２５６個のＬＥＤ２が碁盤目状
に配列されており、任意のＬＥＤを選択的に点灯させる
事により、文字や図形を表示させるものである。An example of a conventional LED display will be described below with reference to the drawings. FIG. 3 is a front view of one character of a conventional LED display, 256 LEDs 2 are arranged in a grid pattern, and characters or figures are displayed by selectively turning on any LED. Is.

【０００４】図４は従来のＬＥＤ表示器の一部詳細図で
あり、図４に於て、ＬＥＤ表示器には１つのドット毎
に、隣接するドットへの光漏れを防止する仕切り板１が
設けられ、前記仕切り板１にはＬＥＤ２を挿通する為の
孔３が開けられると共に、孔３の上部には太陽光がＬＥ
Ｄ２に直接当たりＬＥＤ光が太陽光により相殺される事
を防止する目的の庇４が設けられている。１つのドット
には図５に示す様に赤色を発光する素子２ａと緑色を発
光する素子２ｂを各々１個ずつ搭載した２色発光用のＬ
ＥＤ２が配置されている。素子２ａ及び２ｂは金属製の
反射鏡２ｃに電気的な導伝性を有する材料２ｄにより固
定され、電気回路（図示せず）よりの電流を流す為のワ
イヤー２ｅが接続されている。反射鏡２ｃの回りには透
明なレンズ２ｆが形成され素子２ａ及び２ｂからの発光
を前面方向へ効率的に集めると共に素子２ａ及び２ｂの
機械的な保護を行っている。各素子２ａ及び２ｂは電気
回路からの信号を受けて赤色、緑色、オレンジ色（赤色
緑色の同時点灯）に発光し、文字や図形を表示する。FIG. 4 is a partial detailed view of a conventional LED display. In FIG. 4, the LED display has a partition plate 1 for each dot to prevent light from leaking to an adjacent dot. The partition plate 1 is provided with a hole 3 through which the LED 2 is inserted, and sunlight is LE on the upper part of the hole 3.
Eaves 4 are provided for the purpose of preventing the LED light from directly hitting D2 and being canceled by the sunlight. As shown in FIG. 5, one dot is provided with an element 2a for emitting red light and an element 2b for emitting green light, one for each color, and is for L for two-color emission.
ED2 is arranged. The elements 2a and 2b are fixed to a metallic reflecting mirror 2c by an electrically conductive material 2d, and a wire 2e for flowing a current from an electric circuit (not shown) is connected thereto. A transparent lens 2f is formed around the reflecting mirror 2c to efficiently collect light emitted from the elements 2a and 2b in the front direction and to mechanically protect the elements 2a and 2b. Each of the elements 2a and 2b receives a signal from the electric circuit and emits light in red, green and orange (simultaneous lighting of red and green) to display characters and figures.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら従来のＬ
ＥＤ表示器では、一つのＬＥＤに搭載された赤色を発光
する素子と緑色を発光する素子の輝度が各々の素子を構
成する材料特性の違いによって異なり、現在の技術では
一般的には赤色１００％に対して緑色は約３０％の輝度
しかなく、赤色１個の素子に対して緑色は３個の素子を
搭載するのが理想的である。しかしながら従来より用い
られてきたＬＥＤの構造では一つのＬＥＤ上に多くの素
子を搭載することは製造技術的に困難であり、又、多く
の素子を搭載するためにはスペース上の問題から新しく
反射鏡の金型を製作する必要があり、極めて不経済であ
る。又、太陽光がＬＥＤに直接当たる事を防止する庇が
ある為にＬＥＤ表示器を屋外に取り付けて下方から（矢
印方向）見た場合ＬＥＤが庇により隠れる為視認性が損
なわれる。本発明は前記課題を解決して緑色が屋外の使
用に於いても明瞭な視認性を得ることができると共に下
方からの視認性の良いＬＥＤ表示器を提供するものであ
る。However, the conventional L
In an ED display, the brightness of the element that emits red light and the element that emits green light mounted on one LED differs depending on the difference in the material characteristics of the respective elements. On the other hand, green has a brightness of only about 30%, and it is ideal to mount three elements for green for one element for red. However, it is difficult in terms of manufacturing technology to mount many elements on one LED in the structure of the LED that has been conventionally used, and in order to mount many elements, it is a new reflection due to space problems. It is very uneconomical to make a mirror mold. Further, since there is an eave to prevent sunlight from directly hitting the LED, when the LED display is installed outdoors and viewed from below (in the direction of the arrow), the LED is hidden by the eave and the visibility is impaired. SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides an LED display device in which green can provide clear visibility even in outdoor use and has good visibility from below.

【０００６】[0006]

【課題を解決するための手段】上記問題点を解決するた
めに本発明のＬＥＤ表示器は、緑色を発光するＬＥＤ２
個と赤色を発光するＬＥＤ１個とを接近して配置して１
つのドットとし、前記ＬＥＤを挿通する為の孔を有した
部材と、ＬＥＤの光軸方向を水平方向にして設置した
時、太陽光がＬＥＤに当たらずに影となる位置に設けら
れた庇とを具備し、１ドットのＬＥＤ配置が、緑色を発
光するＬＥＤ２個を赤色を発光するＬＥＤ１個よりも庇
側に配置し、且つ、緑色を発光するＬＥＤ２個と赤色を
発光するＬＥＤ１個の各々のＬＥＤ中心を結ぶ三角形の
中心点が前記孔を形成する部材の孔の中心点よりも庇側
に位置して配置すると共に、前記庇の上面側を全面にわ
たりテーパ形状としたものである。In order to solve the above problems, the LED display of the present invention is an LED 2 which emits green light.
1 and one LED that emits red light are placed close to each other.
A member having two holes and a hole for inserting the LED, and an eaves provided at a position where sunlight does not hit the LED and becomes a shadow when the LED is installed with the optical axis direction of the LED being horizontal. The 1-dot LED arrangement has two LEDs emitting green light on the eaves side of one LED emitting red light, and two LEDs emitting green light and one LED emitting red light. The center point of the triangle connecting the LED centers is arranged closer to the eaves side than the center point of the hole of the member forming the hole, and the upper surface side of the eaves is tapered over the entire surface.

【０００７】[0007]

【作用】本発明は上記した構成によって、輝度の低い緑
色ＬＥＤの輝度を確保すると共に、ＬＥＤ光が太陽光に
て相殺される事なく明瞭な視認性が得られる。又、太陽
光をさえぎる庇がテーパ状の為、ＬＥＤ表示器下方から
の視認性が良いＬＥＤ表示器が得られるものである。According to the present invention, due to the above-mentioned structure, the brightness of the green LED having a low brightness can be secured, and clear visibility can be obtained without the LED light being canceled by the sunlight. Moreover, since the eaves that block sunlight is tapered, an LED display with good visibility from below the LED display can be obtained.

【０００８】[0008]

【実施例】以下に、本発明の一実施例であるＬＥＤ表示
器について、図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An LED display according to an embodiment of the present invention will be described below with reference to the drawings.

【０００９】図１は本発明のＬＥＤ表示器一文字分の正
面図であり、３個のＬＥＤ２ａ２ｂを１つのドットとし
て碁盤目状に２５６ドット配列し、任意のＬＥＤを選択
的に点灯させる事により、文字や図形を表示させるもの
である。図２は本発明のＬＥＤ表示器の一部詳細図であ
り、ＬＥＤ表示器には１つのドット毎に隣接するドット
への光漏れを防止する仕切り板１が設けられ、前記仕切
り板１にはＬＥＤ２を挿通する為の孔３が開けられると
共に、孔３の上部には、太陽光がＬＥＤ２に直接当た
り、ＬＥＤ２から発光した光が相殺されて視認性が損な
われる事を防止する目的として庇４が設けられている。
仕切り板１のひとつの孔３には庇４により太陽光の陰に
なり易い上側に緑色に発光するＬＥＤ２ａが２個配置さ
れ、前記２個のＬＥＤ２ａの中央部下側に赤色に発光す
るＬＥＤ２ｂが１個配置されて１つのドットを形成して
いる。ここで、前記３個のＬＥＤの各々の中心を結ぶ三
角形の中心点５が仕切り板１のＬＥＤを挿通する為の孔
３の中心点６よりも庇４側になるようにＬＥＤ２が配置
されている。この配置はＬＥＤの１ドットを庇４に近く
することで太陽光によって視認性が損なわれることを防
止するとともに次に述べる下側の庇の陰となって下方か
らの視認性の低下することを防止するためのものであ
る。さらに、庇４の上面４ａはＬＥＤ表示器を屋外に取
り付けて下方（矢印方向）から見た場合に、庇４により
赤色を発光するＬＥＤ２ｂが隠れて視認性が損なわれる
事を防止する為にテーパ状に形成されている。この結
果、本ＬＥＤ表示器をビル壁面などの高所に設置したと
き、遠方の水平に近い方向からはもちろん比較的近くの
ＬＥＤ表示器を見上げるような位置からでもその表示内
容を読み取ることができる。FIG. 1 is a front view of one character of the LED display of the present invention. Three LEDs 2a2b are arranged as one dot in a grid of 256 dots, and any LED is selectively turned on, Characters and figures are displayed. FIG. 2 is a partial detailed view of the LED display device of the present invention. The LED display device is provided with a partition plate 1 for preventing light leakage to adjacent dots for each dot. A hole 3 for inserting the LED 2 is opened, and sunlight is directly applied to the LED 2 at the upper portion of the hole 3 to prevent the light emitted from the LED 2 from being offset and the visibility being reduced. Is provided.
In one hole 3 of the partition plate 1, two LEDs 2a that emit green light are arranged on the upper side, which is easily shaded by sunlight by the eaves 4, and one LED 2b that emits red light is provided on the lower side of the central portion of the two LEDs 2a. Individually arranged to form one dot. Here, the LED 2 is arranged so that the center point 5 of the triangle connecting the centers of the three LEDs is located closer to the eaves 4 than the center point 6 of the hole 3 for inserting the LED of the partition plate 1. There is. This arrangement prevents the visibility of the LED from being impaired by sunlight by placing one dot of the LED close to the eaves 4 and reduces the visibility from below as a shadow of the lower eaves described below. It is for prevention. Further, the upper surface 4a of the eaves 4 is tapered to prevent the LED 2b emitting red light from being hidden by the eaves 4 and hindering the visibility when the LED display is mounted outdoors and viewed from below (in the direction of the arrow). It is formed into a shape. As a result, when the LED display is installed at a high place such as a building wall surface, the display content can be read not only from a distant near horizontal direction but also from a position looking up at a relatively close LED display. .

【００１０】なお、本発明では１ドットを赤色に発光す
るＬＥＤを１個、緑色に発光するＬＥＤを２個の構成と
したがそれぞれさらに多数個としても構わない。この場
合でも輝度の違いを補うために赤色に発光するＬＥＤの
個数より緑色に発光するＬＥＤの個数が多いことが好ま
しい。In the present invention, one LED that emits red light for one dot and two LEDs that emit green light are used, but more LEDs may be provided. Even in this case, it is preferable that the number of LEDs emitting green light is larger than the number of LEDs emitting red light to compensate for the difference in brightness.

【００１１】[0011]

【発明の効果】以上、本発明の一実施例に基づいて説明
したように、本発明によれば、ＬＥＤ表示器の１ドット
に赤色を発光するＬＥＤに比べて輝度の低い緑色を発光
するＬＥＤを２個配置した為緑色の輝度が大きく、又、
太陽光の影響を受けにくい庇側に緑色が有る為屋外での
視認性が良い。又、１ドットを構成するＬＥＤ全体を仕
切り板の１ドットの孔に対して上部に配置し、なおかつ
庇の上部をテーパ状にしたためＬＥＤ表示器を取り付け
た場合に下方からの視認性が良くなる。As described above on the basis of one embodiment of the present invention, according to the present invention, an LED which emits green light having a lower brightness than an LED which emits red light in one dot of an LED display. Since two are arranged, the brightness of green is large, and
Good visibility outdoors because the eaves side is green, which is not easily affected by sunlight. Further, since the entire LED forming one dot is arranged above the one dot hole of the partition plate and the upper portion of the eave is tapered, the visibility from the bottom is improved when the LED display is attached. .

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明のＬＥＤ表示器の正面図FIG. 1 is a front view of an LED display of the present invention.

【図２】本発明のＬＥＤ表示器の一部詳細図FIG. 2 is a partial detailed view of the LED display of the present invention.

【図３】従来のＬＥＤ表示器の正面図FIG. 3 is a front view of a conventional LED display.

【図４】従来のＬＥＤ表示器の一部詳細図FIG. 4 is a partial detailed view of a conventional LED display device.

【図５】従来のＬＥＤ表示器用ＬＥＤの詳細図FIG. 5 is a detailed view of a conventional LED for an LED display.

【符号の説明】[Explanation of symbols]

１ 仕切り板 ２ ＬＥＤ ３ 孔 ４ 庇 ５ ３個のＬＥＤの中心 ６ 孔の中心 1 partition plate 2 LED 3 hole 4 eaves 5 center of 3 LEDs 6 center of hole

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 ＬＥＤを碁盤目状に配列して各ＬＥＤを
選択的に点灯させる事により文字、図形等を表示するＬ
ＥＤ表示器に於いて、緑色を発光するＬＥＤ２個と赤色
を発光するＬＥＤ１個を接近して配置してひとつのドッ
トとし、前記ＬＥＤを挿通する為の孔を有した部材と、
ＬＥＤの光軸を水平方向にして設置した時太陽光線がＬ
ＥＤに当たらずに影となる位置に設けられた庇とを具備
し、前記１ドットのＬＥＤの配置が、緑色を発光するＬ
ＥＤ２個を赤色を発光するＬＥＤ１個よりも庇側に位置
し、且つ、緑色を発光するＬＥＤ２個と赤色を発光する
ＬＥＤ１個の各々のＬＥＤの中心を結ぶ三角形の中心点
が、前記孔の中心点よりも前記庇側に位置して構成した
ことを特徴とするＬＥＤ表示器。1. An LED arranged in a checkerboard pattern and displaying characters, figures, etc. by selectively lighting each LED.
In the ED display, two LEDs that emit green light and one LED that emits red light are arranged close to each other to form one dot, and a member having a hole for inserting the LED,
When installed with the optical axis of the LED horizontal, the sun's rays are L
An eave provided at a position that does not hit the ED and becomes a shadow, and the arrangement of the LED of 1 dot is L that emits green light.
The center point of the triangle is located at the eaves side of the two EDs, which is closer to the eaves side than the one LED that emits red light, and that connects the centers of the two LEDs that emit green light and the one LED that emits red light to the center of the hole. An LED display characterized in that it is arranged on the eaves side with respect to a point. 【請求項２】 上記庇の上面側を全面にわたりテーパ形
状としたことを特徴とする請求項１記載のＬＥＤ表示
器。2. The LED display device according to claim 1, wherein the upper surface side of the eaves is entirely tapered.
JP4335733A 1992-12-16 1992-12-16 LED display Expired - Fee Related JP2755080B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4335733A JP2755080B2 (en) 1992-12-16 1992-12-16 LED display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4335733A JP2755080B2 (en) 1992-12-16 1992-12-16 LED display

Publications (2)

Publication Number Publication Date
JPH06186911A true JPH06186911A (en) 1994-07-08
JP2755080B2 JP2755080B2 (en) 1998-05-20

Family

ID=18291870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4335733A Expired - Fee Related JP2755080B2 (en) 1992-12-16 1992-12-16 LED display

Country Status (1)

Country Link
JP (1) JP2755080B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0798788A1 (en) * 1996-03-29 1997-10-01 ROLLS-ROYCE POWER ENGINEERING plc A display sign and an optical element for use in the same
JPH10190066A (en) * 1996-12-27 1998-07-21 Nichia Chem Ind Ltd Light emitting diode and led display using the same
GB2324598B (en) * 1997-04-21 2001-04-18 Microsense Systems Ltd A display
GB2324363B (en) * 1997-04-16 2001-05-16 Siemens Plc Improvements in or relating to variable message displays
JP2001337626A (en) * 2000-05-24 2001-12-07 Avix Inc Panel type led display module
JP2009163205A (en) * 2007-12-31 2009-07-23 Lg Display Co Ltd Exposure apparatus and exposure method for photosensitive film
WO2009157046A1 (en) * 2008-06-27 2009-12-30 株式会社日立製作所 Plasma display device
JP2016099393A (en) * 2014-11-18 2016-05-30 レシップホールディングス株式会社 Led display unit
US10741107B2 (en) 2013-12-31 2020-08-11 Ultravision Technologies, Llc Modular display panel
US10891881B2 (en) 2012-07-30 2021-01-12 Ultravision Technologies, Llc Lighting assembly with LEDs and optical elements

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5939996A (en) * 1996-03-29 1999-08-17 Rolls-Royce Power Engineering Plc Display sign and an optical element for use in the same
EP0798788A1 (en) * 1996-03-29 1997-10-01 ROLLS-ROYCE POWER ENGINEERING plc A display sign and an optical element for use in the same
JPH10190066A (en) * 1996-12-27 1998-07-21 Nichia Chem Ind Ltd Light emitting diode and led display using the same
GB2324363B (en) * 1997-04-16 2001-05-16 Siemens Plc Improvements in or relating to variable message displays
GB2324598B (en) * 1997-04-21 2001-04-18 Microsense Systems Ltd A display
JP4545281B2 (en) * 2000-05-24 2010-09-15 アビックス株式会社 Panel type LED display module
JP2001337626A (en) * 2000-05-24 2001-12-07 Avix Inc Panel type led display module
JP2009163205A (en) * 2007-12-31 2009-07-23 Lg Display Co Ltd Exposure apparatus and exposure method for photosensitive film
US8531647B2 (en) 2007-12-31 2013-09-10 Lg Display Co., Ltd. Exposure method and exposure apparatus for photosensitive film
WO2009157046A1 (en) * 2008-06-27 2009-12-30 株式会社日立製作所 Plasma display device
US10891881B2 (en) 2012-07-30 2021-01-12 Ultravision Technologies, Llc Lighting assembly with LEDs and optical elements
US10741107B2 (en) 2013-12-31 2020-08-11 Ultravision Technologies, Llc Modular display panel
JP2016099393A (en) * 2014-11-18 2016-05-30 レシップホールディングス株式会社 Led display unit

Also Published As

Publication number Publication date
JP2755080B2 (en) 1998-05-20

Similar Documents

Publication Publication Date Title
US6236382B1 (en) Light emitting diode display unit
US5924785A (en) Light source arrangement
US5400228A (en) Full color illuminating unit
EP0677833B1 (en) High-luminous-pattern display apparatus
JP2571743Y2 (en) Surface light collector for dot matrix light-emitting displays
JPH06186911A (en) Led display unit
CN101398153A (en) Led assembly
JP2898600B2 (en) Light emitting display
JP3080229B2 (en) LED display and LED signal light
KR200416943Y1 (en) Pcb for led coated with aluminium
JP2001168396A (en) Light emitting display device and light emitting display unit
JPH10161569A (en) Led dot matrix light emitting display body
JP3477358B2 (en) LED display
JP2562061Y2 (en) Surface light collector for dot matrix light-emitting displays
JP2000089694A (en) Dot matrix display device
JPH07302931A (en) Aggregate lamp
KR20030055843A (en) Apparatus for advertisement display using P4 LED
JP3527178B2 (en) LED unit for signal lights
KR200269125Y1 (en) Apparatus for advertisement display using P4 LED
GB2359580A (en) Anti-Glare Illuminating Traffic Signal
JPH07288342A (en) Aggregate led lamp
CN208538431U (en) LED display module, display screen and display system
JPH0438531Y2 (en)
EP0883100B1 (en) Casing for variable message displaying devices
JPH0342470Y2 (en)

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees