Illumination – Display backlight – Lcd backlight
Reexamination Certificate
2011-06-07
2011-06-07
Alavi, Ali (Department: 2875)
Illumination
Display backlight
Lcd backlight
C362S097100, C362S235000, C362S236000, C362S240000, C362S246000, C362S247000, C362S296010
Reexamination Certificate
active
07954969
ABSTRACT:
Light which tries to enter a diffuser plate3at an angle which exceeds an angle at which a percentage of reflected light increases rapidly (that is, the incidence angle θ=70 degrees) is all reflected by a reflecting surface21and then enters the diffuser plate3. Therefore, a pseudo light source is formed by light which was collected near a connection point between adjacent reflecting surfaces21out of the emitted light of the discharge lamps1. So, the brightness between the adjacent discharge lamps1is increased, and it is possible to reduce unevenness in brightness. Furthermore, since the discharge lamp1is housed inside the reflecting surface21whose cross-sectional shape is a parabola, it is possible to reduce the distance between a reflecting plate2and the diffuser plate3, as compared with the prior art, and to reduce the thickness dimension in the anteroposterior direction.
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International Search Report for PCT/JP2006/313432 mailed Oct. 10, 2006.
Taiwanese Office Action for the Application No. 095124985 dated Nov. 24, 2010.
Kamada Masao
Matsukawa Kazuyuki
Nara Isao
Tanaka Wataru
Uemoto Yasuo
Alavi Ali
Cheng Law Group PLLC
Panasonic Electric Works Co., Ltd.
Zettl Mary
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