公开(公告)号：DE69832048D1

公开(公告)日：2005-12-01

申请号：DE69832048

申请日：1998-03-05

Applicant: THOMSON CONSUMER ELECTRONICS

Inventor： POLINIAK SAMUEL ,  RITT MICHAEL ,  COLLINS THOMAS ,  LAPERUTA JR ,  STORK ROBERT

IPC: B05B5/08 ,  B05B5/12 ,  B05B15/04 ,  B05B15/12 ,  H01J9/22 ,  H01J9/227

Abstract: A spray module 40 for manufacturing a cathode-ray tube (CRT) 10 comprises an enclosure 42 having sidewalls 44, a base 46 attached to the sidewalls 44, for closing one end thereof, and a panel support 48 having an opening, 50 therethrough. The panel support 48 is attached to an opposite end of the sidewalls 44. The spray module 40 has at least one electrostatic spray gun 36 therein for spraying charged screen structure material through the opening 50 in the panel support 48 and onto an interior surface of a faceplate panel 12 of the CRT 10. The spray module 40 includes a primary shield assembly 55 disposed within the enclosure 42 and extending through the opening 50 in the panel support 48. A secondary shield assembly 56 also is disposed within the enclosure 42 The primary and secondary shield assemblies 55 and 56, respectively, direct the charged screen structure material toward the interior surface of the panel 12, thereby increasing the transfer efficiency of the spray gun 36. A collecting tray 54 also is utilized to catch the spent spray which falls to the bottom of the spray module 40. The tray 54 is inclined toward a drain 100 that directs the spent material out of the spray module 40.

公开(公告)号：DE69927692D1

公开(公告)日：2005-11-17

申请号：DE69927692

申请日：1999-06-02

Applicant: THOMSON CONSUMER ELECTRONICS

Inventor： GOROG ISTVAN ,  LAPERUTA JR ,  PEARLMAN SAMUEL ,  NOSKER WILLIAM ,  HERFORD HELENE ,  DATTA PABITRA ESTATE OF ,  DESAI VITHALBHI ,  STEWART CLARENCE ,  COHEE JAMES

IPC: H01J9/227 ,  H01J29/32

Abstract: A light-absorbing matrix 23, having openings therein, is formed on an interior surface of a faceplate panel 12 of a cathode-ray tube 10 by providing a photoreceptor thereon, electrostatically charging the photoreceptor 72 to a substantially uniform level of charge, and exposing the photoreceptor to light through openings 33 in a color selection electrode 24 to selectively discharge the more intensely illuminated areas of the photoreceptor, without substantially discharging the less intensely illuminated areas. The photoreceptor 72 comprises a plurality of layers including a photoresist layer 56, a conductive layer 62, and a photoconductive layer 66. The openings 33 in the color selection electrode 24 have a dimension substantially greater than the dimension of the openings in the resultant matrix 23. The photoreceptor 72 is contacted with a liquid toner having charged pigment particles which form toner lines 84 on the less intensely illuminated areas of the photoreceptor. The photoreceptor 72 is exposed to UV radiation to selectively change the solubility of the photoresist portion 56 thereof into areas of greater and lesser solubility. The photoreceptor 72 is serially developed to expose portions of the interior surface of the panel 12, while leaving the areas of lesser solubility intact. Next, the interior surface of the panel and the areas of lesser solubility are coated with a matrix suspension which is dried to form the matrix 23. The areas of lesser solubility and the overlying light-absorbing matrix material thereon are removed, thereby forming in the matrix 23 a plurality of openings having a width less than the width of the openings 33 in the color selection electrode 24.