| 摘要 |
<p>The present invention relates to a secure video display terminal visible only to one viewer out of many. The secure video display terminal in accordance with this invention mixes target images with complementary-color images and allows the viewer to see the video using variable filter glasses without her eyes being exposed to the complementary-color images. Those who do not wear the glasses are unable to see the video as the mixture of the target images and complementary-color images allows them to see achromatic-color images only. A monitor embodying the present invention can be used in computer monitors in offices or mobile device screens viewable in public places such as subway, bus, park, and plaza without causing inconvenience to others while keeping it secure from possible breaches.</p> |
