Sony Corporation

Kouji Iida

Takashi Oku

Masato Hatanaka

Kazuhiro Yokota

Shinsuke Kito

Yuichiro Maruyama

Sinobu Yamada

Seiji Miyamura

A light dimming dot pattern is provided for an LCD in which the diameter of dots is changed in a range from approximately 0.16 mm to approximately 0.65 mm depending on the distance of the dots from a fluorescent tube () in such a manner that the volume of the shielded light is increased and decreased at a location close to a position overlying the fluorescent tube () and at a location remote from the fluorescent tube (), respectively. In this manner, a light dimming dot pattern with a transmittance for all light rays of approximately 62% (roughly in the vicinity of 62%), higher than the transmittance for all light rays in the conventional technique not higher than 50%, is produced. Consequently, the light of uniform high luminance may be produced without raising the luminance of the fluorescent tube (), and hence an LCD of high luminance may be realized.

Backlight device and liquid crystal display apparatus

Backlight device and liquid crystal display

Growing community of inventors

Chiba, Japan

Kouji Iida