JP3875768B2 - Display device - Google Patents

Display device Download PDF

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Publication number
JP3875768B2
JP3875768B2 JP20906097A JP20906097A JP3875768B2 JP 3875768 B2 JP3875768 B2 JP 3875768B2 JP 20906097 A JP20906097 A JP 20906097A JP 20906097 A JP20906097 A JP 20906097A JP 3875768 B2 JP3875768 B2 JP 3875768B2
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JP
Japan
Prior art keywords
light
emitting element
display device
light emitting
ridge
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.)
Expired - Lifetime
Application number
JP20906097A
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Japanese (ja)
Other versions
JPH1152878A (en
Inventor
信一 山崎
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.)
MK Seiko Co Ltd
Original Assignee
MK Seiko 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 MK Seiko Co Ltd filed Critical MK Seiko Co Ltd
Priority to JP20906097A priority Critical patent/JP3875768B2/en
Publication of JPH1152878A publication Critical patent/JPH1152878A/en
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Publication of JP3875768B2 publication Critical patent/JP3875768B2/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)

Description

【０００１】
【産業上の利用分野】
本発明は、屋外に設置され多数の発光素子を配置して、文字、画像等を表示するための表示装置に関する。
【０００２】
【従来の技術】
従来から知られている表示装置は、図１、２に示すように発光素子を収容する貫通孔と、貫通孔に収容された発光素子に太陽光線が当たらないようにようにするための発光素子の上側横方向に位置する庇を設けたシェードを、多数の発光素子をマトリクス状に配列したプリント基板の前面に防滴、防塵のためにシリコン等の充填材を発光素子の周囲に充填してビス等を用いて取り付けている。そして、シェードは耐候性に優れたポリカーボネート等の樹脂が用いられ、庇を水平方向に対して雨水の排水性・下方からの視認性を考慮して多少の傾斜を持たせた形状となっている。
【０００３】
【発明が解決しようとする課題】
このような従来の表示装置では、シェードがポリカーボネート樹脂製であるため、雨水が表面張力により庇上に水滴となって溜まってしまい、発光素子から発した光が水滴の屈折作用によって撹乱されてしまい、視認性を低下させてしまっている。本発明では、雨天時に庇に付着した雨水の水滴を素早く除去し、雨水による視認性の低下を防止する。
【０００４】
【課題を解決するための手段】
庇の先端天面部を傾斜させると共にその端部に凹凸を形成し、表面をシリコンによりコーティング処理を施した。
【０００５】
【作用】
この発明では、庇の先端天面部を傾斜させると共にその端部に凹凸を形成したことにより、従来の表示装置に比べ雨天時に庇に付着した雨水の水滴を素早く除去することができる。
【０００６】
また、庇の表面をシリコンによりコーティング処理を施したことで、より水滴を素早く除去することができる。
【０００７】
【実施例】
以下、図面を基に、本発明の実施例について説明する。図３は本発明の実施使用例を示す一部拡大側面断面図、図４は本発明の実施使用例を示す一部拡大平面断面図、図５は本発明の実施使用例を示す斜視図である。
【０００８】
１は本発明の表示装置のシェード、２は多数の発光素子群３をマトリクス状に配列したプリント基板である。シェード１は樹脂製で、発光素子群を収容する貫通孔４、前面に貫通孔４に収容された発光素子群３に太陽光線が当たらないようにようにするための庇５が備えられている。プリント基板２の発光素子群３は、赤、緑、青の発光ダイオードからなり、赤：緑：青＝１：２：１の４個の発光ダイオードで１ドットを構成されている。１ドットにおける４個の発光ダイオードの配列および発光素子群３をマトリクス状に配列する方法は適宜に行われている。６は発光素子群３を駆動および制御を行うための電源、制御信号等を伝送するフラットケーブルである。
【０００９】
庇５は先端天面部を全体の傾斜より傾斜させると共にその端部に凹凸を形成してある。これにより雨天時に庇５上に付着した雨水が庇５の形状に追従しずらくなり、従来に比べ雨水の水滴を素早く除去することができる。また、表面にはシリコンによりコーティング処理を施してあり、より雨水の水滴を素早く除去することができる。
【００１０】
次に、図４を基に発光体ユニットについて説明する。発光体ユニットはシェード１とプリント基板２、背面カバー７によって形成され、ビスによって取り付けられている。発光素子群３の周囲には、シェード１の貫通孔４からの雨水、粉塵等の侵入を防止するために、シリコン等の充填材８を充填している。背面カバー７はシェード１同様に樹脂製で、適宜位置にプリント基板２のフラットケーブル６が貫通する貫通孔９が設けられている。この背面カバー７によりプリント基板２の背面を保護すると共に、側面からシリコン等の充填材８の流出を防止している。
【００１１】
庇５の先端天面部の傾斜および凹凸の間隔は下方からの視認性と雨水の排水効果を考慮して形成される。本実施例では凹凸がマトリクス状になるように形成したが、これに限定されるものではなくランダムであっても千鳥状であってもよい。
【００１２】
【発明の効果】
この発明では、庇の先端天面部を傾斜させると共にその端部に凹凸を形成したことにより、庇上に付着した雨水が庇の形状に追従しずらくなり、従来の表示装置に比べ素早く除去することができる。
【００１３】
また、庇の表面をシリコンによりコーティング処理を施したことで、より水滴を素早く除去することができる。
【００１４】
以上のことにより、雨水による視認性の低下を防止した表示装置を提供できる。
【図面の簡単な説明】
【図１】従来の表示装置の説明図である。
【図２】従来の表示装置の説明図である。
【図３】本発明の表示装置の一部拡大側面断面図である。
【図４】本発明の表示装置の一部拡大平面断面図である。
【図５】本発明の表示装置の斜視図である。
【符号の説明】
１ シェード
２ プリント基板
３ 発光素子群
４、９ 貫通孔
５ 庇
６ フラットケーブル
７ 背面カバー
８ 充填材[0001]
[Industrial application fields]
The present invention relates to a display device for displaying characters, images and the like by arranging a large number of light emitting elements installed outdoors.
[0002]
[Prior art]
As shown in FIGS. 1 and 2, a conventionally known display device includes a through-hole that houses a light-emitting element, and a light-emitting element for preventing sunlight from hitting the light-emitting element that is housed in the through-hole. A shade provided with a ridge located in the lateral direction above the front side of the printed circuit board in which a large number of light emitting elements are arranged in a matrix is dipped and filled with a filler such as silicon around the light emitting elements to prevent dust. It is attached using screws. The shade is made of a resin such as polycarbonate that has excellent weather resistance, and has a shape with a slight inclination in consideration of drainage of rainwater and visibility from below with respect to the horizontal direction. .
[0003]
[Problems to be solved by the invention]
In such a conventional display device, since the shade is made of polycarbonate resin, rainwater accumulates as water droplets on the surface due to surface tension, and the light emitted from the light emitting element is disturbed by the refraction action of the water droplets. , Has reduced visibility. In the present invention, raindrops adhering to the kite during rainy weather are quickly removed to prevent visibility from being lowered due to rainwater.
[0004]
[Means for Solving the Problems]
The top surface of the heel was tilted and irregularities were formed at the end, and the surface was coated with silicon.
[0005]
[Action]
In the present invention, since the top surface portion of the tip of the kite is inclined and the projections and depressions are formed on the end portion thereof, it is possible to quickly remove rainwater droplets adhering to the kite during rainy weather as compared with a conventional display device.
[0006]
In addition, since the surface of the ridge is coated with silicon, water droplets can be removed more quickly.
[0007]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. 3 is a partially enlarged side sectional view showing an example of use of the present invention, FIG. 4 is a partially enlarged plan sectional view showing an example of use of the present invention, and FIG. 5 is a perspective view showing an example of use of the present invention. is there.
[0008]
Reference numeral 1 denotes a shade of the display device of the present invention, and 2 denotes a printed circuit board in which a large number of light emitting element groups 3 are arranged in a matrix. The shade 1 is made of resin, and includes a through hole 4 for accommodating the light emitting element group, and a front face 5 for preventing sunlight from hitting the light emitting element group 3 accommodated in the through hole 4 on the front surface. . The light emitting element group 3 of the printed circuit board 2 includes red, green, and blue light emitting diodes, and one dot is configured by four light emitting diodes of red: green: blue = 1: 2: 1. An arrangement of four light emitting diodes in one dot and a method of arranging the light emitting element groups 3 in a matrix are appropriately performed. Reference numeral 6 denotes a flat cable for transmitting a power source, a control signal and the like for driving and controlling the light emitting element group 3.
[0009]
The flange 5 has the top surface of the tip inclined from the entire inclination, and has irregularities formed at the ends thereof. This makes it difficult for rainwater adhering to the gutter 5 to follow the shape of the gutter 5 when it rains, and to remove rainwater droplets more quickly than in the past. In addition, the surface is coated with silicon, and rainwater droplets can be removed more quickly.
[0010]
Next, the light emitter unit will be described with reference to FIG. The light emitting unit is formed by the shade 1, the printed circuit board 2, and the back cover 7, and is attached by screws. A filler 8 such as silicon is filled around the light emitting element group 3 in order to prevent rainwater, dust and the like from entering through the through hole 4 of the shade 1. The back cover 7 is made of resin like the shade 1, and a through hole 9 through which the flat cable 6 of the printed circuit board 2 passes is provided at an appropriate position. The back cover 7 protects the back surface of the printed circuit board 2 and prevents the filler 8 such as silicon from flowing out from the side surface.
[0011]
The inclination of the top surface of the top of the ridge 5 and the interval between the projections and depressions are formed in consideration of the visibility from below and the drainage effect of rainwater. In this embodiment, the projections and depressions are formed so as to form a matrix, but the present invention is not limited to this and may be random or staggered.
[0012]
【The invention's effect】
In this invention, since the top surface of the tip of the kite is inclined and the projections and depressions are formed on the end thereof, the rainwater adhering to the kite becomes difficult to follow the shape of the kite and is removed more quickly than the conventional display device. be able to.
[0013]
In addition, since the surface of the ridge is coated with silicon, water droplets can be removed more quickly.
[0014]
As described above, it is possible to provide a display device that prevents the visibility from being deteriorated by rainwater.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a conventional display device.
FIG. 2 is an explanatory diagram of a conventional display device.
FIG. 3 is a partially enlarged side sectional view of the display device of the present invention.
FIG. 4 is a partially enlarged plan sectional view of the display device of the present invention.
FIG. 5 is a perspective view of a display device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shade 2 Printed circuit board 3 Light emitting element group 4, 9 Through-hole 5 庇 6 Flat cable 7 Back cover 8 Filling material

Claims (2)

多数の発光素子あるいは発光素子群をマトリクス状に配列したプリント基板の前面に、上記発光素子あるいは発光素子群を収容する貫通孔と、前記貫通孔に収容された上記発光素子あるいは発光素子群に太陽光線が直接当たらないようにようにするための上記発光素子あるいは発光素子群の上側横方向に位置する庇を設けたシェードを取り付けた表示装置において、上記庇の先端天面部を傾斜させると共にその端部に凹凸を形成し、雨天時に庇に付着した雨水の水滴を速やかに除去するようにしたことを特徴とする表示装置。A front surface of a printed circuit board in which a large number of light-emitting elements or light-emitting element groups are arranged in a matrix, a through-hole that houses the light-emitting elements or light-emitting element groups, and the light-emitting elements or light-emitting element groups that are housed in the through-holes In a display device having a shade provided with a ridge located in the upper lateral direction of the light emitting element or the light emitting element group so as not to be directly exposed to a light beam, the tip top surface portion of the ridge is inclined and its end The display device is characterized in that irregularities are formed on the portion so that raindrops adhering to the bag in the rain are quickly removed. 請求項１記載の表示装置において、庇の表面をシリコンによりコーティング処理を施したことを特徴とする表示装置。2. A display device according to claim 1, wherein the surface of the ridge is coated with silicon.
JP20906097A 1997-08-04 1997-08-04 Display device Expired - Lifetime JP3875768B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20906097A JP3875768B2 (en) 1997-08-04 1997-08-04 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20906097A JP3875768B2 (en) 1997-08-04 1997-08-04 Display device

Publications (2)

Publication Number Publication Date
JPH1152878A JPH1152878A (en) 1999-02-26
JP3875768B2 true JP3875768B2 (en) 2007-01-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9780267B2 (en) 2014-08-29 2017-10-03 Nichia Corporation Display device
WO2017213368A1 (en) 2016-06-10 2017-12-14 Samsung Electronics Co., Ltd. Display module and method for coating the same

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4545281B2 (en) * 2000-05-24 2010-09-15 アビックス株式会社 Panel type LED display module
GB0711632D0 (en) 2007-06-18 2007-07-25 Barco Nv Method and device for shading in a display system
JP2009002979A (en) * 2007-06-19 2009-01-08 Mitsubishi Electric Corp Video display device and its manufacturing method
US8974077B2 (en) 2012-07-30 2015-03-10 Ultravision Technologies, Llc Heat sink for LED light source
US9582237B2 (en) 2013-12-31 2017-02-28 Ultravision Technologies, Llc Modular display panels with different pitches
US9195281B2 (en) 2013-12-31 2015-11-24 Ultravision Technologies, Llc System and method for a modular multi-panel display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9780267B2 (en) 2014-08-29 2017-10-03 Nichia Corporation Display device
WO2017213368A1 (en) 2016-06-10 2017-12-14 Samsung Electronics Co., Ltd. Display module and method for coating the same
US10251224B2 (en) 2016-06-10 2019-04-02 Samsung Electronics Co., Ltd. Display module and method for coating the same
US10560988B2 (en) 2016-06-10 2020-02-11 Samsung Electronics Co., Ltd. Display module and method for coating the same

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