【発明の詳細な説明】〔発明の目的〕（産業上の利用分野）本発明は、ＬＥＤ表示装置に係り、特に、高輝度のＬＥ
Ｄを用いる高精細化した表示部の前面に配設するフィル
タ板に関するものである。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to an LED display device, and particularly to a high-brightness LED display device.
The present invention relates to a filter plate disposed in front of a high-definition display using D.
（従来の技術）周知のように、空港や駅においては、それぞれの用途に
応じた旅客案内表示装置を備え、利用者に各種情報を提
供することにより、利用者が確認やスムースに動けるよ
うにサービスしている。(Prior art) As is well known, airports and stations are equipped with passenger information display devices tailored to their respective purposes, and provide various information to users so that they can confirm information and move smoothly. Service.
このような旅客案内表示装置には、回転機構で駆動する
表示パネルを利用したもの等が用いられていたが、近年
、高輝度のＬＥＤ （以下、高輝ＩＬＥＤという）が開
発され、この高輝度ＬＥＤを用い高精細化したＬＥＤ表
示装置が、リアルタイムで表示内容の変更が可能、回転
機構不要でメンテナンスが容易、表示部そのものが発光
体で専用のランプが不要等のメリットを有することから
、広く採用されるようになってきた。Such passenger information display devices used to utilize a display panel driven by a rotating mechanism, but in recent years, high-brightness LEDs (hereinafter referred to as high-brightness ILEDs) have been developed. High-definition LED display devices are widely adopted because they have the following advantages: the display content can be changed in real time, maintenance is easy as no rotating mechanism is required, and the display itself is a light emitting body, eliminating the need for a dedicated lamp. It has started to be done.
ところで、このような高輝度ＬＥＤを用い高精細化した
ＬＥＤ表示装置は、その高輝度ＬＥＤの発光部から放出
される電磁波が、外部機器ヘノイズどなって悪影響を与
えるので、これを防止するために表示部の前面に、アク
リル材等で製作し銅製の網を張付けたフィルタ板を配設
している。By the way, in a high-definition LED display device using such high-brightness LEDs, the electromagnetic waves emitted from the light-emitting part of the high-brightness LEDs cause noise and adverse effects on external equipment, so in order to prevent this, A filter plate made of acrylic material and covered with a copper mesh is placed in front of the display.
このフィルタ板は、また、高輝度ＬＥＤが消灯中にはそ
の先端を正面側から見えなくするため、染料のような着
色剤を混入したアクリル材で製作している。The filter plate is also made of acrylic material mixed with a coloring agent such as dye, so that the tips of the high-intensity LEDs are not visible from the front when they are off.
一方、高輝度ＬＥＤを用い高精細化すると発熱も大きく
なるので、高輝度ＬＥＤの背面側からフしかしながら、
以上のように構成されたＬＥＤ表示装置にも、次のよう
な改良すべき点がある。On the other hand, when high-intensity LEDs are used to achieve high definition, heat generation also increases, so it is necessary to
The LED display device configured as described above also has the following points to be improved.
■ アクリル材でフィルタを製作した場合、高輝度ＬＥ
Ｄからの発熱を全面に受けるため熱変形し、表示内容が
歪んでしまいフィルタとしての機能を果たさなくなるこ
とが多い。■ If the filter is made of acrylic material, high brightness LE
Since the entire surface receives heat from D, it is thermally deformed, distorting the displayed content, and often not functioning as a filter.
■ フィルタの熱変形を防ぐため、背面側からファン等
で通風して冷却しても充分な冷却効果は得られず、止む
を得ず高輝度ＬＥＤの点灯率を低下させたり、連続点灯
時間を制限していたので、任意の画像を表示することが
できない。■ In order to prevent thermal deformation of the filter, even if you use a fan to cool the filter from the back side, a sufficient cooling effect cannot be obtained. Because of the restrictions, it is not possible to display any images.
■ フィルタに銅製の網を張付けることは、その作業が
困難であるのみでなく、この網のために視認性が損なわ
れる。■ Attaching a copper mesh to the filter is not only difficult, but also reduces visibility.
（イ）着色剤を混入したフィルタは、完成後に実装して
から色調が濃すぎたり、逆に薄すぎたりすることが分か
り、−回で所望の色調を得ることは実際上きわめて困難
であるから、所望の色調を得るまで試行錯誤を繰返し、
何回もフィルタを作り直さなければならず、煩雑となり
生産効率を極めて悪いものとしている。(b) When a filter mixed with a colorant is installed after completion, it is found that the color tone is either too dark or too light, and it is actually extremely difficult to obtain the desired color tone in one cycle. , repeat trial and error until you get the desired color tone.
The filter has to be remade many times, which is complicated and extremely inefficient.
そこで１本発明の目的は、製作が容易で、熱変形による
表示内容の歪みがなく、任意の画像の表示が容易となる
ＬＥＤ表示装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an LED display device that is easy to manufacture, has no distortion of display content due to thermal deformation, and can easily display any image.
本発明は、高輝度ＬＥＤを用い高精細化した表示部を有
するＬＥＤ表示装置本体と、このＬＥＤ表示装置本体の
前面にフィルタ板を配設したしＥＤ表示装置において、
フィルタ板に表示部の面積以上とした面積を有する中空
部を形成し、この中空部に冷却媒体を循環させるように
したものである。The present invention provides an ED display device including an LED display device main body having a high-definition display section using high-intensity LEDs, and a filter plate disposed on the front surface of the LED display device main body.
A hollow portion having an area larger than the area of the display portion is formed in the filter plate, and a cooling medium is circulated through this hollow portion.
（作用）フィルタ板の中空部に冷却媒体を循環させるので、高輝
度のＬＥＤからの発熱をこの冷却媒体により放熱してフ
ィルタ板の熱変形を防ぐことができ、表示内容の歪みが
なく、任意の画像の表示が容易となる。(Function) Since the cooling medium is circulated through the hollow part of the filter plate, the heat generated from the high-intensity LED is dissipated by the cooling medium, and thermal deformation of the filter plate can be prevented.There is no distortion of the displayed content, and the display can be displayed freely. This makes it easier to display images.
（実施例）以下、本発明の一実施例を図面を参照して説明する。第
１図は、本発明の一実施例の構成を示す断面図であり、
第２図は、本発明の一実施例の要部を示す斜視図である
。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing the configuration of an embodiment of the present invention,
FIG. 2 is a perspective view showing essential parts of an embodiment of the present invention.
第１図及び第２図において、１は高輝度ＬＥＤ２を用い
高精細化した表示部を備えたＬＥＤ表示装置本体で、そ
の前面側の上部及び下部にはそれぞれ取付金具３及び４
が設けられている。ここで、高精細化とは、高輝度ＬＥ
Ｄの配列ピッチをその直径より僅かに大きくする（例え
ば、高輝度ＬＥＤ２の直径が３ｍのときピッチを約４閤
）構成をいう。５はＬＥＤ表示装置本体１の取付金具３
゜４にねじ締めその他適宜の手段により取付けられたフ
ィルタ板で、ＬＥＤ表示装置本体１の前面全体を覆うよ
うな大きさとなるように透明なアクリル材で製作され、
ＬＥＤ表示装置本体１の表示部全体をカバーする面積を
有する中空部６を設けている。なお、フィルタ板５の表
面には、外部からの光による反射を防ぐため乱反射剤（
透明）を塗布する。中空部６には、一方の側（第２図で
は手前側）の最下部に注入ロア、他方の側の最上部に排
出口８を設け、注入ロアは注入管９を介してポンプ１０
の吐出口に連結され、排出口８は排出管１１を介して冷
却液１２を収容している冷却液槽１３に連通している。1 and 2, reference numeral 1 denotes an LED display device body equipped with a high-definition display section using high-brightness LEDs 2, and mounting brackets 3 and 4 are provided at the upper and lower parts of the front side, respectively.
is provided. Here, high definition means high brightness LE
Refers to a configuration in which the arrangement pitch of D is slightly larger than its diameter (for example, when the diameter of the high-intensity LED 2 is 3 m, the pitch is about 4 squares). 5 is the mounting bracket 3 of the LED display device main body 1
The filter plate is attached to 4 by screws or other appropriate means, and is made of transparent acrylic material and has a size that covers the entire front surface of the LED display device main body 1.
A hollow portion 6 having an area that covers the entire display portion of the LED display device main body 1 is provided. Note that the surface of the filter plate 5 is coated with a diffused reflective agent (
Apply transparent). The hollow part 6 is provided with an injection lower at the bottom of one side (the front side in FIG. 2) and an outlet 8 at the top of the other side, and the injection lower is connected to the pump 10 via an injection pipe 9.
The discharge port 8 communicates via a discharge pipe 11 with a coolant tank 13 containing a coolant 12 .
ポンプ１０の吸入口は、吸入管１４を介して冷却液槽１
３に連通している。なお、必要に応じ冷却液槽１３には
放熱器を設け、温度上昇した冷却液１２を冷却する。The suction port of the pump 10 is connected to the cooling liquid tank 1 via the suction pipe 14.
It is connected to 3. Note that, if necessary, a radiator is provided in the cooling liquid tank 13 to cool the cooling liquid 12 whose temperature has increased.
次に、以上のように構成された実施例の作用を説明する
。ポンプ１０を駆動し、冷却液１２を冷却液槽１３から
吸入管１４、注入管９及び注入ロアを介してフィルタ板
５の中空部６に供給する。中空部６に冷却液１２が充満
すると、排出口８から排出管１１を介して冷却液槽１３
へ戻される。この冷却液１２の循環過程で、冷却液１２
は、圧力をもって供給され。Next, the operation of the embodiment configured as above will be explained. The pump 10 is driven to supply the coolant 12 from the coolant tank 13 to the hollow portion 6 of the filter plate 5 via the suction pipe 14, injection pipe 9 and injection lower. When the hollow part 6 is filled with the cooling liquid 12, the cooling liquid tank 13 is passed from the discharge port 8 through the discharge pipe 11.
be returned to. In this circulation process of the coolant 12, the coolant 12
is supplied under pressure.
中空部６の最上部の排出口８から排出されるので、中空
部６内には冷却液１２が常に充満している。Since the cooling liquid 12 is discharged from the discharge port 8 at the top of the hollow part 6, the hollow part 6 is always filled with the cooling liquid 12.
高輝度ＬＥＤ２からの発熱は、フィルタ板５の中空部６
を循環する冷却液１２により放熱されるので、フィルタ
板５は過熱されることなく熱変形を防ぐことができる。The heat generated from the high-intensity LED 2 is generated in the hollow part 6 of the filter plate 5.
Since the heat is radiated by the circulating cooling liquid 12, the filter plate 5 is not overheated and can be prevented from being thermally deformed.
また、冷却液１２として臭酸溶液または食塩水のような
電解性を有する液体を用いることにより、高輝度ＬＥＤ
２からの電磁波はシールドされ、外部へのノイズ源とな
ることを防ぐことができる。In addition, by using an electrolytic liquid such as a hydrochloric acid solution or a saline solution as the cooling liquid 12, high-intensity LED
Electromagnetic waves from 2 are shielded and can be prevented from becoming a source of noise to the outside.
さらに、冷却液１２に染料を混入させることにより、フ
ィルタ板５に着色するのと同じ効果が得られ、色調は、
冷却液槽１３で冷却液１２と染料の調合により、容易に
即応性をもって調整でき、従来のように何回もフィルタ
板を作り直すことがなくなる。また１色彩も染料を選定
することにより、カラフルなものを自由に選択すること
ができる。Furthermore, by mixing dye into the coolant 12, the same effect as coloring the filter plate 5 can be obtained, and the color tone is
By mixing the coolant 12 and the dye in the coolant tank 13, adjustments can be made easily and quickly, and it is no longer necessary to remake the filter plate many times as in the past. Furthermore, by selecting the dye, you can freely select a colorful one.
なお１以上の実施例では、冷却媒体として冷却液１２を
用いたが、この代りに冷媒ガスを用いても同様の冷却効
果を得ることができる。Note that in one or more embodiments, the cooling liquid 12 is used as the cooling medium, but a similar cooling effect can be obtained by using a refrigerant gas instead.
以上説明したように本発明によれば、次のような効果を
有するＬＥＤ表示装置を提供することができる。As explained above, according to the present invention, an LED display device having the following effects can be provided.
■ フィルタ板は、内部に冷却媒体が循環されて冷却さ
れるので、高輝度ＬＥＤを高精細化した表示部に対して
も充分放熱でき、熱変形がなく歪のない画像を提供する
ことができる。■ The filter plate is cooled by circulating a cooling medium inside it, so it can sufficiently dissipate heat even for display parts made of high-brightness LEDs with high definition, and can provide images without thermal deformation and distortion. .
■ 高輝度ＬＥＤの点灯率を制限する必要がなく、任意
の画像を連続して表示することができる。■ There is no need to limit the lighting rate of high-intensity LEDs, and any image can be displayed continuously.
■ フィルタ板は、銅網の張付けが不要となり、製作が
容易で視認性を損なわれることがない。■ The filter plate does not require the attachment of copper mesh, is easy to manufacture, and does not impair visibility.
（４） フィルタ板は、素材へ着色剤の混入が不要とな
り、試作を多数回行うための時間、労力、費用を省くこ
とができる。(4) The filter plate does not require the mixing of colorants into the material, and the time, labor, and cost of making multiple prototypes can be saved.
第１図は本発明の一実施例を示す断面図、第２図は本発
明の一実施例の要部を示す斜視図である。１・・・ＬＥＤ表示装置本体 ２・・・高輝度Ｌ Ｅ
Ｄ５・・・フィルタ板 ６・・・中空部７
３３．注入口 ８・・・排出口１０・・
・ポンプ １２・・・冷却液１３・・・
冷却液槽代理人 弁理士 則 近 憲 佑（’ｗＵつμ）ｑフFIG. 1 is a cross-sectional view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing essential parts of one embodiment of the present invention. 1... LED display device body 2... High brightness L E
D5...Filter plate 6...Hollow part 7
33. Inlet port 8... Outlet port 10...
・Pump 12...Cooling liquid 13...
Coolant Tank Agent Patent Attorney Kensuke Chika ('w Utsuμ) qfu
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20933290AJPH0497194A (en) | 1990-08-09 | 1990-08-09 | LED display device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20933290AJPH0497194A (en) | 1990-08-09 | 1990-08-09 | LED display device |
| Publication Number | Publication Date |
|---|---|
| JPH0497194Atrue JPH0497194A (en) | 1992-03-30 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20933290APendingJPH0497194A (en) | 1990-08-09 | 1990-08-09 | LED display device |
| Country | Link |
|---|---|
| JP (1) | JPH0497194A (en) |
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| US12108546B1 (en) | 2022-07-25 | 2024-10-01 | Manufacturing Resources International, Inc. | Electronic display assembly with fabric panel communications box |
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