JPH0384519U

JPH0384519U -

Info

Publication number: JPH0384519U
Application number: JP14542589U
Authority: JP
Priority date: 1989-12-19
Filing date: 1989-12-19
Publication date: 1991-08-27

Description

[Brief explanation of drawings]

第１図乃至第５図はこの考案に係るキーボード
照明構造の実施例を示し、第１図は本考案のキー
ボード照明構造を示す断面図、第２図はキーボー
ドラバーをプリント回路基板上に積み重ねた状態
を示す上面図、第３図は本考案のキーボード照明
構造を構成するプリント回路基板上にマトリツク
ス回路とＬＥＤを設けた状態を示す平面図、第４
図Ａ，Ｂは同構造を構成する遮光シートを示す正
面図及び下面図、第５図Ａ，Ｂは同構造を構成す
るキーボードラバーを示す正面図及び下面図であ
る。主な符号の説明、１……プリント回路基板、２
……ＬＥＤ、３……接点、４……キーボードラバ
ー、４ａ……キートツプ、４ｂ……クリツク部、
４ｃ……ＬＥＤ用凹部、５……白色ペイント、６
……黒色接点、７……遮光シート、７ａ……孔、
８……筐体。 Figures 1 to 5 show an embodiment of the keyboard lighting structure according to the invention, Figure 1 is a cross-sectional view showing the keyboard lighting structure of the invention, and Figure 2 shows keyboard rubber stacked on a printed circuit board. FIG. 3 is a top view showing the state in which a matrix circuit and LEDs are provided on the printed circuit board constituting the keyboard lighting structure of the present invention; FIG.
Figures A and B are a front view and a bottom view showing a light-shielding sheet that constitutes the same structure, and Figures 5A and B are a front view and a bottom view that show a keyboard rubber that constitutes the same structure. Explanation of main symbols, 1...Printed circuit board, 2
...LED, 3...Contact, 4...Keyboard rubber, 4a...Key top, 4b...Click part,
4c... LED recess, 5... White paint, 6
...black contact, 7...light-shielding sheet, 7a...hole,
8... Housing.

Claims

[Scope of Claim for Utility Model Registration] 1. In a keyboard lighting structure for an electronic device in which a key top is provided on a sheet-like keyboard rubber stacked on a printed circuit board, and the key top of the keyboard rubber is inserted from the back side of the case into a hole for the key top provided in the case. A keyboard lighting structure characterized in that it is constructed by sequentially stacking a printed circuit board provided with an LED arranged near a key top, a keyboard rubber provided with the key top, and a light-shielding sheet provided with a hole for the key top. 2 Apply white paint to the bottom of the key top,
Claim 1 characterized in that a contact point is provided thereon.
Keyboard lighting structure as described. 3. The keyboard lighting structure according to claim 1, wherein white paint is applied to the LED setting side surface of the printed circuit board. 4. The keyboard lighting structure according to claims 1, 2 and 3, wherein the light shielding sheet is white.