Illumination – Illuminated scale or dial – Internal light source
Reexamination Certificate
2008-06-03
2008-06-03
Sember, Thomas M. (Department: 2885)
Illumination
Illuminated scale or dial
Internal light source
C349S061000, C349S062000
Reexamination Certificate
active
07380953
ABSTRACT:
A display device is provided which offers double-sided display and achieves a thin structure and also which prevents deterioration in display quality of each of front and back display units when an illumination unit such as a backlight is shared by these display units. The display device includes a first display unit having a display surface on the front surface thereof; a second display unit having a display surface on the rear surface thereof; and a common illumination unit interposed between the first display unit and the second display unit, for illuminating both the first display unit and the second display unit with light. The illumination unit includes a light-guiding member having a first light-emitting surface opposed to the first display unit and a second light-emitting surface opposed to the second display unit, and a transflector is interposed between the second light-emitting surface of the light-guiding member and the second display unit.
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Kawakami Hisanori
Masamoto Taketoshi
Onishi Yasunori
Harness & Dickey & Pierce P.L.C.
Seiko Epson Corporation
Sember Thomas M.
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