Bump structure of a scattering reflective board and method...

Details Bump structure of a scattering reflective board and method... Bump structure of a scattering reflective board and method...

2005-05-17

2005-05-17

Kang, Donghee (Department: 2811)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S114000, C349S130000, C349S187000, C359S559000, C359S613000, C430S321000, C430S325000, C430S326000, C438S029000, C438S030000

Reexamination Certificate

active

06894748

ABSTRACT:
A bump structure of a scattering reflective board and a method for manufacturing the bump structure. Multiple strip-shaped shielding sections are arranged on an optical mask at intervals. Multiple irregularly arranged circular holes are distributed in the respective strip-shaped shielding sections. Multiple irregularly arranged circular shielding sections are distributed in spacing sections between the adjacent strip-shaped shielding sections. Multiple irregularly arranged arch notches and arch shielding sections are distributed on the edges of the strip-shaped shielding sections. After exposed and developed, multiple scattered and irregularly arranged bumps are formed on the photosensitive material layer laid on the substrate. Then a reflective film is laid on the substrate and the bumps to form the reflective board.

REFERENCES:
patent: 4648691 (1987-03-01), Oguchi et al.
patent: 5204765 (1993-04-01), Mitsui et al.
patent: 5917567 (1999-06-01), Oh et al.
patent: 6335150 (2002-01-01), Tsai
patent: 6452653 (2002-09-01), Yamanaka et al.

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