Lighting device, display device and television device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8579454
APP PUB NO 20130120669A1
SERIAL NO

13704694

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An edge light-type lighting device with which uneven brightness on a display surface hardly occurs or is less likely to occur even though a positioning structure for positioning a light guide plate is included is provided. A backlight unit 24 according to the present invention includes a light guide plate 20, an LED unit 32, a reflection sheet 26, a backlight chassis 22, and a positioning pin 40. The light guide plate 20 has a light entrance surface 20a on the side, a light exit surface 20b on the front, an opposite surface 20c on the back, and a cutout 38 at edges. The LED unit 32 is arranged opposite the light entrance surface 20a of the light guide plate 20. The reflection sheet 26 is arranged on the opposite surface 20c side. The backlight chassis 22 includes a bottom plate 22a and side plates 22b, 22c. The positioning pin 40 is provided on the backlight chassis 22 and for positioning the light guide plate 20 when fitted in the cutout 38. The positioning pin 40 is fitted in the cutout 38. The reflection sheet 26 includes a portion that is bent in a location where the cutout 38 is located and covers a part of the positioning pin 40 exposed on an opposite side to the side plate 22b or 22c.

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First Claim

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Patent Owner(s)

  • SHARP KABUSHIKI KAISHA

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kuromizu, Yasumori Osaka, JP 93 308

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