Sony Corporation

Minoru Makida

Yasufumi Ogawa

Takaaki Iwaki

Hiroaki Uchino

A transmissive screen includes a first board member on a light source side, the first board member including a Fresnel lens on the surface of the light source side and one of a vertical lenticular lens or a horizontal lenticular lens on the surface of a viewer side; and a second board member on the viewer side, the second board member including the other of the vertical lenticular lens or the horizontal lenticular lens. The first board member includes a diffusing layer between the Fresnel lens and the lenticular lens on the surface of the viewer side at a position close to the Fresnel lens, wherein a relation represented by &#x3b8;&#x2267;tan(fp/2L) is obtained, where &#x3b8; is a diffusion angle at which a distribution characteristic of diffused light passing through the diffusing layer is half the peak gain, fp is a pitch of the Fresnel lens and L is a light path between the diffusing layer and the lenticular lens on the surface of the viewer side.

Transmissive screen and rear projection display apparatus

A method is provided for reducing a residual spot on a cathode ray tube when a power supply is turned off. The method is executed by applying a holding voltage being no less than the value of the voltage enabling to enhance the back raster luminance and a cut-off voltage, or a voltage of a lower value, to a second grid electrode while the anode voltage is lowered to a predetermined voltage value when the main power supply is turned off.

Growing community of inventors

Kanagawa, Japan

Minoru Makida