US 11,874,553 B2
Backlight device
Ken Sugiyama, Tokyo (JP); Kosuke Matsubara, Tokyo (JP); and Takeshi Kaneki, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on May 15, 2023, as Appl. No. 18/197,346.
Application 18/197,346 is a continuation of application No. 17/545,560, filed on Dec. 8, 2021, granted, now 11,686,972.
Application 17/545,560 is a continuation of application No. 17/200,224, filed on Mar. 12, 2021, granted, now 11,209,695, issued on Dec. 28, 2021.
Application 17/200,224 is a continuation of application No. 16/196,428, filed on Nov. 20, 2018, granted, now 10,948,768, issued on Mar. 16, 2021.
Claims priority of application No. 2017-226210 (JP), filed on Nov. 24, 2017.
Prior Publication US 2023/0280614 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/13357 (2006.01); G02F 1/1362 (2006.01); G02F 1/1335 (2006.01); F21V 8/00 (2006.01)
CPC G02F 1/133602 (2013.01) [G02B 6/0091 (2013.01); G02B 6/0095 (2013.01); G02F 1/133512 (2013.01); G02F 1/136286 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A backlight device comprising:
a case having a bottom plate;
a light guide having a front surface as an emission surface, a rear surface opposed to the front surface, and an incidence surface that is one of side surfaces of the light guide, the rear surface facing to the bottom plate;
a plurality of light-emitting elements facing the incident surface of the light guide, each of the light-emitting elements having a bottom surface and a light-emitting surface facing the incidence surface of the light guide;
a fixing tape arranged on the bottom plate, each of the bottom surfaces of the light-emitting elements and the rear surface of the light guide being adhered to the fixing tape; and
a light-shield facing the fixing tape through the light guide.
 
11. A backlight device comprising:
a case having a bottom plate;
a light guide having a front surface as an emission surface, a rear surface opposed to the front surface, and an incidence surface that is one of side surfaces of the light guide, the rear surface facing on the bottom plate;
a plurality of light-emitting elements facing the incident surface of the light guide, each of the light-emitting elements having a bottom surface and a light-emitting surface facing the incidence surface of the light guide;
a fixing tape arranged on the bottom plate, each of the bottom surfaces of the light-emitting elements and the rear surface of the light guide being adhered to the fixing tape; and
a light-shield facing the fixing tape through each of the light emitting elements.