Title:
METHOD OF MANUFACTURING A COLOR DISPLAY DEVICE AND A COLOR DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO1999034387
Kind Code:
A3
Abstract:
A display device comprises a color filter pattern between a phosphor pattern and a display window. For blue, the thickness (t2) of this color filter pattern is more than 2.5 micrometer, preferably 5-7 micrometer, and/or for red said thickness is 0.25-1.5 micrometer. The red and/or blue color filter patterns are provided by means of a non-linear photoresist. This enables an improved contrast (LCP) to be achieved.
Inventors:
VAN DOORN ARIE R
VAN MELIS GODEFRIDUS P
VAN MELIS GODEFRIDUS P
Application Number:
PCT/IB1998/002034
Publication Date:
September 10, 1999
Filing Date:
December 14, 1998
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
PHILIPS SVENSKA AB (SE)
PHILIPS SVENSKA AB (SE)
International Classes:
G09F9/00; G09F9/30; G02B5/20; H01J1/74; H01J9/20; H01J9/227; H01J29/18; H01J29/32; (IPC1-7): H01J9/20
Domestic Patent References:
| WO1998018147A1 | 1998-04-30 |
Foreign References:
| US3734728A | 1973-05-22 | |||
| EP0738926A2 | 1996-10-23 | |||
| US4268594A | 1981-05-19 | |||
| GB2215910A | 1989-09-27 |
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