Abstract: A cathode ray tube which emits harmful electromagnetic waves includes far-infrared emitting material which emits far-infrared rays which reduce the harmful effects of electromagnetic waves. The far-infrared emitting cathode ray tube is obtained by including far-infrared emitting material in at least one of a phosphor layer, a black matrix, an outer graphite layer, and a shadow mask. This far-infrared emitting cathode ray tube provides a user favorable work place by reducing the harmful effects of electromagnetic waves.

Abstract: A method for preparing an anti-reflective coating is provided which comprises the steps of applying a first coating composition containing an alcohol solution of a silicon alkoxide, at least one metal alkoxide of the formula M(OR).sub.4, an acid and water, where M is a metal selected from the group consisting of Ti, Sn, In and Zr and R is an alkyl group, on the outer surface of a panel to form a first layer; drying the panel at about 40.degree.-80.degree. C. to form a first layer; applying a second coating composition containing an alcohol solution of a silicon alkoxide, a salt selected from the group consisting of KCl, KNO.sub.3, CH.sub.3 COOK, NaCl, NaNO.sub.3, CH.sub.3 COONa, NH.sub.4 Cl, NH.sub.4 NO.sub.3 and CH.sub.3 COONH.sub.4, an acid and water onto the first layer to form a second layer; and heating the first and second layers coated on the outer surface of a panel.

Abstract: A housing for an image display device and an image display device are provided which include a cabinet having an opening for viewing an electronic information display accommodated in the cabinet, wherein at least a portion of the cabinet is formed from a mixture of raw material and at least one far infrared emitting material in an amount of 1 to 30%, by weight. An image display device and a housing for an image display device are also provided which include an electronic information display and at least one far infrared lamp at the front-side of a cabinet containing the electronic information display. Additionally provided is an image display device comprising at least one far infrared emitting device containing a heater to apply heat to a far infrared emitting material, a reflecting plate to reflect far infrared radiation which is outwardly emitted from the interior of the far infrared emitting device, and a supporting means for supporting at least one far infrared emitting device and the reflecting plate.