US 12,422,707 B2
Display device that prevents the vehicle-mounted display screen from affecting the main driver
Guofei Ji, Shenzhen (CN); Shilin Lv, Shenzhen (CN); and Haijiang Yuan, Shenzhen (CN)
Assigned to HKC CORPORATION LIMITED, Shenzhen (CN)
Filed by HKC CORPORATION LIMITED, Shenzhen (CN)
Filed on Aug. 23, 2024, as Appl. No. 18/814,397.
Claims priority of application No. 202311117837.X (CN), filed on Sep. 1, 2023.
Prior Publication US 2025/0076693 A1, Mar. 6, 2025
Int. Cl. G02F 1/13 (2006.01); G02F 1/13357 (2006.01)
CPC G02F 1/1323 (2013.01) [G02F 1/133603 (2013.01); G02F 1/133608 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device, comprising a backlight module and a display panel, the backlight module being configured to provide backlight for the display panel; wherein the backlight module comprises:
a back plate, comprising a bottom plate;
a first light plate, disposed on the bottom plate, wherein there is disposed a plurality of first light-emitting elements on the first light plate, and there is defined a hollowed region in a center of the first light plate;
a first viewing angle control layer, disposed on a side of the first light plate facing away from the bottom plate, wherein the first viewing angle control layer comprises a plurality of first grid lines sequentially arranged along a first orientation; and
a rotating assembly, arranged in the hollowed region, wherein one end of the rotating assembly is connected to the bottom plate, and another end of the rotating assembly is connected to the first viewing angle control layer to control the first viewing angle control layer to rotate in a direction parallel to a plane in which the display panel lies;
a second viewing angle control layer, disposed on a side of the first viewing angle control layer facing away from the bottom plate, wherein the second viewing angle control layer comprises a plurality of second grid lines sequentially arranged along a second orientation;
wherein an orthogonal projection of the second viewing angle control layer on the bottom plate overlaps with an orthogonal projection of the first viewing angle control layer on the bottom plate.