| 摘要 |
A car navigation including a touch screen with a function of a room-mirror and a DMB(Digital Multimedia Broadcasting) A/V display device are provided to reduce material cost without multiple reflection phases by containing a haft mirror layer formed by coating a half mirror film or a metal material. A car navigation including a touch screen(12) with a function of a room-mirror and a DMB A/V display device comprise a display(13), an electronic circuit substrate(31), and a haft mirror layer(35). The touch screen is divided into upper and lower plates. The display part is mounted to the rear part of the touch screen. The substrate is mounted to the rear part of the display part. The half mirror layer is formed as the rear surface of the lower plate of the touch screen, formed by metal-depositing one of aluminum, nickel, silver, or chrome, agitated and deposited by TiO2 and SiO2, and formed by coating a half mirror film or a metal material. The transmissivity of the half mirror layer is more than 5%, and the reflectivity of the layer is more than 20%. The surface of the half mirror layer is hard-coated for scratch prevention.
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