JPS6074015U

JPS6074015U - LED pergraph display device

Info

Publication number: JPS6074015U
Application number: JP16611083U
Authority: JP
Inventors: 水谷　正道
Original assignee: 株式会社東芝
Priority date: 1983-10-28
Filing date: 1983-10-28
Publication date: 1985-05-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はＬＥＤバーグラフ指示計の外観を示す斜視図、
第２図は従来のＬＥＤバーグラフ表示装置の構成を示す
斜視図、第３図は第２図のＬＥＤバーグラフ基板の構成
を分解して示す斜視図、第４図はモノシリツクタイプの
ＬＥＤバーグラフの外観を示す斜視図、第５図ａ、　ｂ
は本考案−実施例のＬＥＤバーグラフ表示装置を示し、
第５図ａぼ斜視図、第５図すは第５図ａの反射体の部分
を上から見た図、第６図乃至第８図ａ、　ｂはいずれも
本考案によるＬＥＤバーグラフ表示装置の変形例を示し
、第６図は反射面を曲面にした反射体の上面図、第７図
ａ、　ｂはそれぞれ光出射面に波形の凹凸を形成した反
射体の上面図および斜視図、第８図ａ、　ｂはそれぞれ
第６図の反射体の光出射面に波形の凹凸を形成した場合
の反射体の上面図および斜視図である。１１・・・ＬＥＤバーグラフ駆動回路プリント基板、１
２・・・ＬＥＤチップ、１３・・・反射体、１３ａ・・
・逃げ溝、１３ｂ・・・反射面、１３ｃ・・・光出射面
、１４・・・黒色塗装または黒色ポリエステルフィルム
、１５・・・波形の凹凸。第１図　　　　　　第２図第３図　　　第４３FIG. 1 is a perspective view showing the appearance of the LED bar graph indicator;
Fig. 2 is a perspective view showing the configuration of a conventional LED bar graph display device, Fig. 3 is an exploded perspective view showing the structure of the LED bar graph board in Fig. 2, and Fig. 4 is a monolithic type LED bar graph display device. Perspective view showing the appearance of the graph, Figures 5a and b
shows an LED bar graph display device of the present invention-embodiment,
Figure 5a is a perspective view, Figure 5a is a top view of the reflector in Figure 5a, and Figures 6 to 8a and b are all LED bar graph display devices according to the present invention. Fig. 6 is a top view of a reflector with a curved reflecting surface, Figs. 8a and 8b are a top view and a perspective view, respectively, of the reflector shown in FIG. 6 when wave-shaped unevenness is formed on the light exit surface of the reflector. 11...LED bar graph drive circuit printed circuit board, 1
2...LED chip, 13...Reflector, 13a...
- Relief groove, 13b... Reflective surface, 13c... Light exit surface, 14... Black paint or black polyester film, 15... Wave-shaped unevenness. Figure 1 Figure 2 Figure 3 Figure 43

Claims

[Scope of utility model registration request]

(1) An LED bar graph drive circuit printed circuit board on which an electronic circuit for driving the LED bar graph is mounted, a plurality of LED chips mounted linearly at a predetermined interval on one end of this printed circuit board, and this LED chip. a substantially triangular prism-shaped reflector made of transparent material that is attached to the printed circuit board with one surface that is perpendicular to the row directly facing the column and the other surface that is perpendicular to the row that is located substantially on the same plane as one end edge of the printed circuit board; An LED bar graph display device comprising:

(2) The LED bar graph display device according to claim 1, wherein the reflector has a black outer surface of the reflective surface facing the right-angled edge.

(3) The LED bar graph display device according to claim 2, wherein the reflector has a waveform unevenness parallel to the direction of the chip array on the light emitting surface.

(4) Any one of claims 2 or 3 of the claims for registration of a utility model, characterized in that the reflecting surface facing the edge at right angles to the reflecting force is formed into a curved surface having an outwardly convex curvature. 2. The LED bar graph display device described in .