Method of manufacturing and adjusting a color picture...

Details Method of manufacturing and adjusting a color picture... Method of manufacturing and adjusting a color picture...

H - Electricity

01

J

355/6, 313/35.16

H01J 9/42 (2006.01) H01J 29/98 (2006.01) H04N 9/28 (2006.01)

Patent

CA 1234640

E.Will II Abstract of the Disclosure A color picture tube comprising three electron-gun systems, in which on the shadow mask or a part connected thereto, phosphorescent marks are attached to the rear side thereof. These marks can be used for checking the exact position of the electron beams during adjustment. By suitably delaying the chrominance signals it is possible to improve the E-W convergence.

470283

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