US 12,072,574 B2
Display apparatus
Michikazu Noguchi, Tokyo (JP); Motoki Tsuda, Tokyo (JP); and Kazuki Ichihara, Tokyo (JP)
Assigned to Japan Display Inc., Tokyo (JP)
Filed by Japan Display Inc., Tokyo (JP)
Filed on Jun. 5, 2023, as Appl. No. 18/328,810.
Claims priority of application No. 2022-092888 (JP), filed on Jun. 8, 2022.
Prior Publication US 2023/0408863 A1, Dec. 21, 2023
Int. Cl. G02F 1/13357 (2006.01); F21V 8/00 (2006.01)
CPC G02F 1/133603 (2013.01) [G02B 6/0068 (2013.01); G02B 6/0073 (2013.01); G02B 6/0083 (2013.01); G02B 6/0086 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a first substrate including a first front surface and a first back surface opposite to the first front surface;
a liquid crystal layer arranged on the first front surface of the first substrate;
a light guide panel including a first surface facing the first front surface, a second surface opposite to the first surface and a first side surface crossing the first surface and the second surface; and
a light source unit including a plurality of light emitting diode elements arranged in a first direction at a position facing the first side surface of the light guide panel,
wherein the plurality of light emitting diode elements includes:
a first light emitting diode element capable of emitting light of first color;
a second light emitting diode element capable of emitting light of second color different from the first color; and
a third light emitting diode element capable of emitting light of third color different from the first color and the second color,
in the first direction, a plurality of the first light emitting diode elements, single or a plurality of the second light emitting diode elements and single or a plurality of the third light emitting diode elements are repeatedly arranged,
the total number of the first light emitting diode elements is larger than the total number of the second light emitting diode elements, and
light flux of the light of the first color emitted from the first light emitting diode elements is lower than light flux of the light of the second color emitted from the second light emitting diode elements.