| (19) |
 |
|
(11) |
EP 0 406 503 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
24.07.1991 Bulletin 1991/30 |
| (43) |
Date of publication A2: |
|
09.01.1991 Bulletin 1991/02 |
| (22) |
Date of filing: 15.11.1989 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB NL |
| (30) |
Priority: |
06.07.1989 KR 899624
|
| (71) |
Applicant: SAMSUNG DISPLAY DEVICES CO., LTD. |
|
Hwaseong-gun,
Kyungki-do (KR) |
|
| (72) |
Inventors: |
|
- Yong-Du, Sin
Tongrae-ku
Pusan (KR)
- Lee, Suk-jae
Puk-ku
Pusan (KR)
- Lim, Hyeong-seob
Pusan (KR)
|
| (74) |
Representative: Rodhain, Claude et al |
|
Cabinet Claude Rodhain S.A.
3, rue Moncey
75009 Paris
75009 Paris (FR) |
|
| |
|
| (54) |
Color cathode ray tube lacking inner shield |
(57) A color cathode ray tube (10b) lacking an inner shield (16) is disclosed which is
characterized in that the inner surface of the funnel is coated with a conductive
layer (18b), the conductive layer being made of a high permeability metal or an alloy
of high permeability metals, or being made of a high permeability metal or an alloy
of high permeability metals and a high resistance material.
According to the present invention, the inner shield is totally removed, and therefore,
the manufacturing process for the products is simplified and the manufacturing cost
is saved.