| 摘要 |
PURPOSE:To use left and right screens divisionally in one picture display device, by arranging closely a protecting plate, where polarizing films having polarization axes orthogonal to each other are provided for every width of the bright line due to the horizontal sweep of a picture signal, in the front of the picture display device. CONSTITUTION:Polarizing films which are shown by dotted lines 3 and solid lines 4 and have polairzation axes orthogonal to each other are brought closely into contact with the surface of the back side of a substrate 2 which is formed with transparent glass or plastic and is so shaped that the substrate 2 can be mounted closely in the front of a display device. Respective polarizing films have widths corresponding to widths of odd and even bright lines in the horizontal sweep of a television. This protecting plate 1 functions to protect a picture display device 5 from the mechanical impact force also; and in case that a stereoscopical image is seen, a polarizing filter glasses polarization axes opposite to each other in the left and the right is used. |
