| 摘要 |
PURPOSE:To easily observe the display of a liquid crystal display part even at a position radiated by strong rays of light by screwing a front face control plate having a mirror face on one side and side face control plates similarly having mirror face on each side on the front and both sides of the liquid crystal display part so that respective mirror faces are turned to the inside and setting up the mirror faces to optional angles in accordance with the angles of irradiating light beams. CONSTITUTION:The front face control plate forming the mirror face 14a on one side and the side face control plates 15 having a mirror face 15a on each one side are respectively screwed into the front face and both sides of the liquid crystal displayed part on the main face 11a of a board cover 11 on which the display part 2 and operation keys 3 are arranged so that respective mirror faces 14a, 15a are turned to the inside and the mirror faces are set up to optional angles in accordance with the angles of light beams made incident upon the display part 2. Thereby, strong light made incident from the front window is interrupted by the front face control plate 14 and surface reflection on the display part 2 can be removed, and when the device is used in a gloomy position, weak light beams from back or right and left directions are reflected on respective mirror faces 14a, 15a and made incident upon the display part 2. Consequently, the contents of display can be always decided.
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