JPS6039080U - Lighting device for transmissive display panel - Google Patents

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

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

第１図は照明装置の従来構造を示す断面図、第２図は同
装置における照明表示状態を示す正面図、第３図は本考
案に係る照明装置の基本的構成を示す説明図、第４図は
表示パネルとして液晶素子を用いた照明装置の一実施例
を示す要部断面図、第５図は同装置の部分説明図、第６
図は尚装置の一部変形例を示す要部断面図、第７図は本
考案の他の実施例を示す断面図である。 表示パネル：５，２７、導光板：６，１６，２８、受光
面ニア、１９，３Ｌ光源：８，２４゜２９、隔壁：９，
１０，２３，３２，３３、溝部：　１１．２２．３４、
遮光板：１２．２５．３５、表示パネルとしての液晶素
子：１３，１４、表示パネルとしての透明文字板＝１５
、隔壁を兼用するキャップ状覆い：２０゜FIG. 1 is a sectional view showing the conventional structure of a lighting device, FIG. 2 is a front view showing the illumination display state of the device, FIG. 3 is an explanatory diagram showing the basic structure of the lighting device according to the present invention, and FIG. The figure is a cross-sectional view of a main part of an embodiment of a lighting device using a liquid crystal element as a display panel, FIG. 5 is a partial explanatory diagram of the device, and FIG.
The figure is a sectional view of a main part showing a partially modified example of the device, and FIG. 7 is a sectional view showing another embodiment of the present invention. Display panel: 5, 27, Light guide plate: 6, 16, 28, Light receiving surface near, 19, 3L light source: 8, 24° 29, Partition wall: 9,
10, 23, 32, 33, groove: 11.22.34,
Light shielding plate: 12.25.35, liquid crystal element as display panel: 13, 14, transparent dial plate as display panel = 15
, Cap-shaped cover that also serves as a partition wall: 20°

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 液晶素子等の透過形表示パネルの背後に導光板を配設し
、この導光板の受光面に対置した光源からの照射光を導
光板内に導いて面照射することにより、上記透過形表示
パネルを背後から照明するようにしたものにおいて、上
記導光板の受光面に対置する光源と上記表示パネルの透
過表示面の少゛　　　　なくとも光源側端部とを結ぶ光
路に遮光板を配設するとともに、上記受光面近傍の導光
板上面には上方へ立ち上がる一対の隔壁を一体形成し、
この隔壁間の溝部に上記遮光板を挿入固定してなる透過
形表示パネルの照明装置。A light guide plate is disposed behind a transmissive display panel such as a liquid crystal element, and the light emitted from a light source placed opposite to the light-receiving surface of the light guide plate is guided into the light guide plate for surface irradiation. is illuminated from behind, a light shielding plate is disposed in the optical path connecting the light source opposite to the light receiving surface of the light guide plate and at least an end on the light source side of the transmissive display surface of the display panel; , a pair of partition walls rising upward are integrally formed on the upper surface of the light guide plate near the light receiving surface;
A lighting device for a transmissive display panel in which the light shielding plate is inserted and fixed in the groove between the partition walls.