Patent ID: 11947218
Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A display device, comprising:
a display panel comprising a first display area and a second display area, wherein the first display area at least partially surrounds the second display area;
a main backlight module disposed corresponding to the first display area and providing a backlight source for the first display area; and
a reinforcing backlight structure comprising a sub-backlight module and an optical conversion member, wherein the optical conversion member is disposed at least corresponding to the second display area, the optical conversion member is disposed on a light-emitting side of the sub-backlight module, and light emitted from the sub-backlight module is emitted to the second display area after passing through the optical conversion member,
wherein a first reflective film is disposed in the optical conversion member, and the first reflective film is inclined relative to the display panel;
wherein the display device further comprises an infrared sensor, and the infrared sensor and the sub-backlight module are respectively located on opposite sides of a plane where the first reflective film is located;
wherein the first reflective film transmits one of infrared light and visible light, and reflects the other;
wherein the optical conversion member comprises a first light-transmitting surface corresponding to the sub-backlight module, a second light-transmitting surface corresponding to the second display area, and a third light-transmitting surface corresponding to the infrared sensor;
wherein the infrared sensor is disposed corresponding to the second display area, the sub-backlight module is disposed corresponding to the first display area, the optical conversion member is disposed between the infrared sensor and the display panel, and the first reflective film transmits infrared light and reflects visible light;
wherein the first reflective film comprises a first sub-reflective film and a second sub-reflective film, the first sub-reflective film and the second sub-reflective film are respectively inclined relative to the display panel and intersect with the second light-transmitting surface;
wherein the sub-backlight module comprises a first sub-backlight module and a second sub-backlight module, the first sub-backlight module and the infrared sensor are respectively located on opposite sides of a plane where the first sub-reflective film is located, the second sub-backlight module and the infrared sensor are respectively located on opposite sides of a plane where the second sub-reflective film is located; and
wherein light emitted from the first sub-backlight module and light emitted from the second sub-backlight module are respectively reflected by the first sub-reflective film and the second sub-reflective film and then emit toward the second display area.