US 12,216,356 B2
Display device and mobile terminal
Shaojun Hou, Hubei (CN); Chao Wang, Hubei (CN); and Guanghui Liu, Hubei (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Hubei (CN)
Appl. No. 17/754,382
Filed by WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Hubei (CN)
PCT Filed Mar. 17, 2022, PCT No. PCT/CN2022/081335
§ 371(c)(1), (2) Date Mar. 31, 2022,
PCT Pub. No. WO2023/168736, PCT Pub. Date Sep. 14, 2023.
Claims priority of application No. 202210230007.7 (CN), filed on Mar. 10, 2022.
Prior Publication US 2024/0111188 A1, Apr. 4, 2024
Int. Cl. G02F 1/1335 (2006.01); F21V 8/00 (2006.01); G02F 1/13357 (2006.01)
CPC G02F 1/133613 (2021.01) [G02B 6/0055 (2013.01); G02B 6/0068 (2013.01); G02F 1/133524 (2013.01); G02F 1/133605 (2013.01); G02F 1/133615 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel comprising a first display area, a second display area, and a third display area, wherein the second display area is arranged on one side of the first display area, and the third display area is arranged within the second display area; and
a backlight module arranged on one side of the display panel, wherein the backlight module is provided with a via area, the via area is arranged corresponding to the third display area, and the backlight module comprises a plurality of first light sources arranged corresponding to the first display area and a plurality of second light sources arranged corresponding to the second display area;
wherein in a first state, the first light sources are turned on, and the second light sources are turned on; and in a second state, the first light sources are turned on, and the second light sources are turned off;
wherein the first light sources and the second light sources are disposed on one side of the light guide plate, the first light sources and the second light sources are arranged along the second direction, and the first light sources and the second light sources are disposed on a same side;
wherein the backlight module further comprises a light guide plate and a compensation backlight unit, the compensation backlight unit is disposed on one side of the light guide plate away from the display panel, and the compensation backlight unit is disposed corresponding to the third display area;
wherein the compensation backlight unit comprises a compensation light source and a liquid crystal layer, the compensation light source is arranged in a ring shape, a first electrode disposed on one side of the liquid crystal layer close to the display panel, a second electrode disposed on one side of the liquid crystal layer away from the display panel, and the compensation light source surrounds the liquid crystal layer;
in the light guide plate, a light propagation ability in a first direction is greater than a light propagation ability in a second direction; and
in the second direction, the first display area is disposed on one side of the second display area, the first direction intersects with the second direction, and the first direction and the second direction are parallel to a light emitting surface of the light guide plate.