Sony Corporation

Koichi Furui

Jun Miura

Ichiro Utsumi

A reflection type flat cathode-ray tube enhanced in quality of display image, and its manufacturing method are presented. A flat cathode-ray tube is composed by forming a grid layer, a reflective layer, and a fluorescent layer sequentially at the inner side of a screen panel. The reflective layer is preferably formed at the outer side of the circumference of the fluorescent layer. On a transfer substrate, a transfer foil laminating at least a fluorescent layer, a reflective layer, and a grid layer in this order is prepared, the grid layer side of the transfer foil is heated, pressed and adhered to the inner side of a screen panel, a transfer substrate is peeled off, and a fluorescent screen composed of the fluorescent layer, reflective layer, and grid layer is transferred.

Flat cathode-ray tube including a transfer foil laminate adhered to a screen panel

Transfer foil, transfer method, transfer apparatus, flat cathode-ray tube, and its manufacturing method

A main picture is displayed in monochrome in a main picture display area by emission of a first phosphor layer formed of a white emission phosphor. A second phosphor layer formed of a phosphor different from the first phosphor layer is provided in a region different from the first phosphor layer. Icons are displayed in the icon display area in a color different from the main picture by emission of the second phosphor layer.

Cathode ray tube and method of displaying picture

In a sealing apparatus used in a process for sealing a glass tube-assembly of a flat-type cathode-ray tube by frits, three of a front panel, a screen panel and a funnel can be sealed together, and the front panel can be prevented from being broken. The sealing apparatus includes a frame for properly positioning a combined assembly in which the front panel, the screen panel and the funnel are butted with each other by frits and the following sealing jig ( ). The sealing jig ( ) includes a holding means ( ) for holding a front panel ( ) and a screen panel ( ) under the condition that joint surfaces of the front panel and the screen panel are butted with each other by frits. The holding means ( ) is provided with a first resilient member ( ) which is urged against the outer surface of the front panel ( ) and a second resilient member ( ) which is urged against the outer surface of the screen panel ( ). A portion in which the first resilient member ( ) is urged against the outer surface of the front panel ( ) is provided with a member ( ) whose hardness is selected to be less than that of a panel glass

Frit coating method, a frit coating apparatus, a sealing apparatus, and a sealing method for a flat-type cathode-ray tube

In a flat cathode-ray tube, there are problems that an axis of electron beam is separated before the electron beam enters a main lens due to magnetic field of a magnet disposed outside a neck, and coma aberration is generated to degrade an image quality. It is an object of the present invention to solve these problems. A flat cathode-ray tube comprises an electron gun having a main lens M whose center coincides with a tube axis, a deflection yoke, and a magnet disposed outside a neck. An axis of a prefocus lens of the electron gun is separated from the tube axis.

Flat cathode-ray tube, electron gun for flat cathode-ray tube and producing method thereof

An electron gun supporting member for securing and supporting an electron gun within a cathode ray tube, such as a Braun tube of a television receiver, is disclosed. The electron gun supporting member is comprised of a shield section, electron gun supporting sections and connecting sections. The function of the electron gun supporting sections is to secure and support the electron gun with respect to the cathode ray tube, while that of the connecting sections is to establish electrical connection between the last electrode of the electron gun and an electrically conductive layer formed on the inner wall of the cathode ray tube. The electron gun supporting sections and the connecting sections are bent obliquely outwards in a direction opposite to the direction of insertion of the electron gun into the cathode ray tube.

Growing community of inventors

Kanagawa, Japan

Koichi Furui