公开(公告)号：EP0135234A3

公开(公告)日：1987-05-13

申请号：EP84201196

申请日：1984-08-17

申请人： NORTH AMERICAN PHILIPS CONSUMER ELECTRONICS CORP.

发明人： Speigel, Kenneth

IPC分类号： G03F07/04 ,  H01J09/22 ,  H01J09/227

CPC分类号： G02B3/005 ,  G02B3/0012 ,  G03B21/625 ,  G03F7/04 ,  H01J9/2278

摘要： A method is shown in which a black, light-absorbing matrix is formed on the viewing surface of a rear-projection polymethyl methacrylate TV viewing screen in which there is use of a negative working photoresist composition comprising an aqueous solution of polyvinyl alcohol, a water-soluble dichromate and acetone as essentially the sole wetting agent.

公开(公告)号：EP0207247A3

公开(公告)日：1987-08-26

申请号：EP86105583

申请日：1986-04-23

申请人： GENERAL ELECTRIC COMPANY

发明人： Jansma, Jon Bennett

IPC分类号： H01J09/22

CPC分类号： H01J9/225 ,  B05B5/08

摘要： Method and apparatus for electrostatically applying phosphor coatings to the interior surface of fluorescent lamp tubes includes equipment for applying an electrical charge of one polarity to the glass wall and electrical charge of the opposite polarity to the phosphor particles to cause the phosphor particles to adhere to the glass surface until the particles can be heated to bond them to the interior surface of the glass by lehring. By using electrostatic deposition the lehring may be done at a lower temperature than is required with conventional phosphor deposition using organic binders so that U-shaped fluorescent lamps do not experience distortion from the lehring temperature. The invention includes the fluorescent lamps provided which are devoid of residue of organic binder.

公开(公告)号：EP0025553A3

公开(公告)日：1981-05-27

申请号：EP80105243

申请日：1980-09-03

申请人： Hitachi, Ltd.

发明人： Sasaya, Osamu ,  Nishizawa, Masahiro ,  Yokomizo, Hiroshi ,  Miura, Kiyoshi ,  Tomita, Yoshifumi

IPC分类号： G03C01/60 ,  H01J01/74 ,  H01J09/227 ,  H01J29/32 ,  H01J01/62 ,  H01J09/22 ,  H01J29/18

CPC分类号： H01J9/2271 ,  G03C1/61 ,  G03F7/28 ,  H01J29/225

摘要： An ampholytic surfactant is added to a photosensitive composition consisting essentially of an aromatic diazonium salt and used to prepare a fluorescent screen of a color picture tube. The photosensitive composition can reduce exposure time or amount of light exposure and can reduce formation of fogs.

公开(公告)号：EP0242821A3

公开(公告)日：1988-01-13

申请号：EP87105726

申请日：1987-04-16

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Itiki, Hidetoshi c/o Patent Division ,  Kozasa, Yoshihisa c/o Patent Division

IPC分类号： H01J09/22

CPC分类号： H01J9/223

摘要： An apparatus for supporting a cathode-ray tube panel (20) includes a pair of holders (22) movable to come close to each other and to be separated from each other. Each holder (22) includes elastic rollers (34). The panel (20) is located between the rollers (34) of the pair of holders (22). After the panel (20) is located between the rollers (34) of the holders (22), the holders (22) are moved to a surfaces of the panel (20). The rollers (34) of the holders (22) are brought into contact with the surfaces of the panel (20). The holders (22) are interlocked with an actuator (40). The actuator (40) is interlocked with a lock plate (44) through a ratchet mechanism (46). The holders (22) can freely come close to each other by the ratchet mechanism (46) although the lock plate (44) is not pivoted. The holders (22) can be brought into contact with panels (20) having different sizes. In a contact state, the acuta- tor (40) locked with the lock plate (44) through the ratchet mechanism (46) is pivoted by a predetermined angle so as to cause the holders (22) to come closer to each other. When the holders (22) are thus moved, they are locked. Therefore, the rollers (34) of the holders (22) are kept in tight contact with the surfaces of the panel (20) and are elastically deformed. The panel (20) can be held at a constant contact pressure corresponding to the pivot angle.

公开(公告)号：EP0003148A3

公开(公告)日：1979-08-22

申请号：EP79200011

申请日：1979-01-09

申请人： N.V. Philips' Gloeilampenfabrieken

发明人： Popma, Theo Johan August ,  Van Tol, Maurits Willem

IPC分类号： H01J09/22 ,  C09K11/02 ,  C09K11/46 ,  H01J29/20

CPC分类号： H01J9/221 ,  C09K11/02 ,  C09K11/7701

摘要： A method of making a luminescent screen suitable for use in a cathode-ray tube which is operated with a highly loaded luminescent screen. A luminescent screen comprising a substrate (12) bearing a luminescent layer is produced by spraying a stable aerosol containing a solution (7A) of compounds which are converted on heating into a luminescent material onto the substrate (12) which is maintained at a temperature at which this conversion occurs.

公开(公告)号：EP0286848A3

公开(公告)日：1988-10-26

申请号：EP88104045

申请日：1988-03-15

申请人： Nokia Graetz Gesellschaft mit beschränkter Haftung

发明人： Nill, Eberhard ,  Tischer, Kurt-Manfred

IPC分类号： H01J09/22 ,  B05D05/00

CPC分类号： H01J9/2277 ,  B41M1/34

公开(公告)号：EP0118251A3

公开(公告)日：1987-09-02

申请号：EP84301093

申请日：1984-02-21

申请人： THORN EMI plc

发明人： Ellerbeck, Roger Percy ,  Ranby, Peter Whitten ,  George, Leslie John ,  Clewer, Peter John

IPC分类号： H01J09/22

CPC分类号： H01J9/225

摘要： The invention provides a method of electrostatically coating a tubular glass envelope with phosphor for a filament lamp. The phosphor comprises a mixture of 100 parts by weight of phosphor, 0.01 to 3 parts by weight of a fatty acid having a melting point greater than 40°C or the ammonium, aluminium alkaline earth salts thereof, 0.05 to 5 parts by weight of finely divided aluminium oxide having a grain size smaller than 0.1 micron. The phosphor is applied to the tube by a venturi effect and results in a more uniformly applied coating than is provided using a suspension coating. Uniformity of the coating is measured by the disclosed optical densitometry test.