US 9,810,827 B2
Display device
Munenori Motooka, Mobara (JP); and Nobuyuki Suzuki, Isumi (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Dec. 28, 2016, as Appl. No. 15/392,019.
Application 15/392,019 is a continuation of application No. 14/499,509, filed on Sep. 29, 2014, granted, now 9,568,667.
Application 14/499,509 is a continuation of application No. 13/572,757, filed on Aug. 13, 2012, granted, now 8,864,361, issued on Oct. 21, 2014.
Claims priority of application No. 2011-177436 (JP), filed on Aug. 15, 2011.
Prior Publication US 2017/0108634 A1, Apr. 20, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. F21V 7/04 (2006.01); F21V 8/00 (2006.01)
CPC G02B 6/0023 (2013.01) [G02B 6/0051 (2013.01); G02B 6/0053 (2013.01); G02B 6/0055 (2013.01); G02B 6/0083 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A backlight comprising:
a light source having an emission region;
a wiring board having the light source mounted thereon;
a light guide plate having a side surface into which light from the light source enters, and a front surface from which the light exits; and
an optical sheet which overlaps with the front surface of the light guide plate,
wherein the front surface of the light guide plate includes an effective region serving as a planar light source and a light entering region ranging from the side surface to the effective region,
wherein the optical sheet is arranged from the effective region to the light source, and overlapped with a light-shielding layer in the light entering region.