US 12,481,371 B1
Backlight module
Syun-Yuan Chi, New Taipei (TW); and Chen-Hao Chiu, New Taipei (TW)
Assigned to Chicony Power Technology Co., Ltd., New Taipei (TW)
Filed by Chicony Power Technology Co., Ltd., New Taipei (TW)
Filed on Dec. 31, 2024, as Appl. No. 19/006,233.
Claims priority of application No. 113145115 (TW), filed on Nov. 22, 2024.
Int. Cl. G06F 3/02 (2006.01); F21V 8/00 (2006.01)
CPC G06F 3/02 (2013.01) [G02B 6/0021 (2013.01); G02B 6/0036 (2013.01); G02B 6/005 (2013.01); G02B 6/006 (2013.01); G02B 6/0076 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A backlight module, comprising:
a base layer having a first opening, a second opening, and a third opening;
a first light-isolating sheet disposed above the base layer and having a first light-isolating area, a second light-isolating area, and a fourth opening;
a first light guide sheet disposed in the first light-isolating area;
a second light guide sheet disposed in the second light-isolating area;
a first light-shielding sheet disposed above the first light-isolating sheet and having a first light-transmitting window, a second light-transmitting window, and a fifth opening, wherein the third opening, the fourth opening, and the fifth opening are disposed correspondingly;
a second light-isolating sheet disposed above the first light-shielding sheet and having a third light-isolating area;
a third light guide sheet disposed in the third light-isolating area; and
a second light-shielding sheet disposed above the second light-isolating sheet and having a third light-transmitting window, a fourth light-transmitting window, and a fifth light-transmitting window,
wherein the first light-transmitting window and the third light-transmitting window are disposed correspondingly to form a first light output path, the second light-transmitting window and the fourth light-transmitting window are disposed correspondingly to form a second light output path, and the fifth light-transmitting window forms a third light output path.