Title:
TELEVISION RECEIVER AND SURFACE LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/015013
Kind Code:
A1
Abstract:
Disclosed is surface light source device that, despite using a plurality of point light sources, has almost no uneven luminescence (hot spots) in the vicinity of an incident light surface of a light guide plate and has uniform luminescence across almost the entire light-emitting surface of the light guide plate. Also disclosed is a television receiver that uses the surface light source device as a liquid crystal display device. The television receiver comprises: a surface light source device with a light guide plate that has a light-emitting surface, a facing surface that faces the light-emitting surface, and at least one incident light surface sandwiched between the light-emitting surface and the facing surface, and with a plurality of point light sources arranged in the vicinity of the at least one incident light surface in the light guide plate; a display panel arranged so as to face the light-emitting surface of the light guide plate, with a display area that displays by adjusting light transmission and a shielding frame that demarcates the display area; and a tuner that receives broadcast video signals. The at-least-one incident light surface in the light guide plate has a plurality of concave and convex sections that have openings or bottom surfaces with a long anistropic shape in a direction perpendicular to the light-emitting surface.
Inventors:
TAKATA, Yoshiki (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
鷹田 良樹 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
HATA, Yosuke (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
秦 洋介 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
GOTO, Masako (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
後藤 雅子 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
ODA, Kotaro (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
小田 光太郎 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
鷹田 良樹 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
HATA, Yosuke (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
秦 洋介 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
GOTO, Masako (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
後藤 雅子 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
ODA, Kotaro (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
小田 光太郎 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
Application Number:
JP2011/067368
Publication Date:
February 02, 2012
Filing Date:
July 28, 2011
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA (3-23, Nakanoshima 3-chome Kita-ku, Osaka-sh, Osaka 05, 〒5308205, JP)
旭化成株式会社 (〒05 大阪府大阪市北区中之島三丁目３番２３号 Osaka, 〒5308205, JP)
TAKATA, Yoshiki (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
鷹田 良樹 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
HATA, Yosuke (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
秦 洋介 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
GOTO, Masako (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
後藤 雅子 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
ODA, Kotaro (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
旭化成株式会社 (〒05 大阪府大阪市北区中之島三丁目３番２３号 Osaka, 〒5308205, JP)
TAKATA, Yoshiki (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
鷹田 良樹 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
HATA, Yosuke (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
秦 洋介 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
GOTO, Masako (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
後藤 雅子 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
ODA, Kotaro (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
International Classes:
F21S2/00; G02B1/04; G02F1/13357; H04N5/66; F21Y101/02; F21Y103/00
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (TMI ASSOCIATES, 23rd Floor Roppongi Hills Mori Tower, 6-10-1, Roppongi, Minato-k, Tokyo 23, 〒1066123, JP)
Claims:
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