Liquid crystal cells – elements and systems – Particular structure – Holder – support – frame – or housing
Reexamination Certificate
2005-09-06
2005-09-06
Dudek, James A. (Department: 2871)
Liquid crystal cells, elements and systems
Particular structure
Holder, support, frame, or housing
C349S065000, C362S085000
Reexamination Certificate
active
06940569
ABSTRACT:
An information processing apparatus includes a display unit having a first reflective plate and a second reflective plate forming a reflective-plate unit, and a third reflective plate. The first reflective plate is bonded to an external frame, and the second reflective plate is connected to a reflective-plate hinge. In addition, the third reflective plate is pivotally connected-to the reflective-plate hinge, and a diffusion plate is bonded to the third reflective plate. Light emitted from a cold-cathode fluorescent lamp is guided by an optical waveguide and illuminates the entire surface of a liquid crystal panel. In addition, a part of the light is reflected by the second reflective plate, is incident on the diffusion plate bonded to the third reflective plate, is efficiently diffused by the diffusion plate, and uniformly illuminates an operation unit such as a keyboard.
REFERENCES:
patent: 6191939 (2001-02-01), Burnett
patent: 6776497 (2004-08-01), Huppi et al.
Nakagawa Masao
Tanahashi Makoto
Tanaka Akitsugu
Dudek James A.
Frommer William S.
Frommer & Lawrence & Haug LLP
Sony Corporation
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