US 11,734,945 B2
Display module and display device
Jian Zhang, Beijing (CN); Cai Zheng, Beijing (CN); Tingting Zhao, Beijing (CN); Litao Fan, Beijing (CN); Yingxue Yu, Beijing (CN); Jinzhao Zhou, Beijing (CN); and Qin Xin, Beijing (CN)
Assigned to BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/977,490
Filed by BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Dec. 16, 2019, PCT No. PCT/CN2019/125658
§ 371(c)(1), (2) Date Sep. 2, 2020,
PCT Pub. No. WO2021/119923, PCT Pub. Date Jun. 24, 2021.
Prior Publication US 2021/0216741 A1, Jul. 15, 2021
Int. Cl. G06V 40/13 (2022.01); G02F 1/1333 (2006.01); F21V 8/00 (2006.01); G06V 10/143 (2022.01); G06V 10/54 (2022.01); G06V 40/00 (2022.01); G06V 10/147 (2022.01)
CPC G06V 40/1318 (2022.01) [G02B 6/0055 (2013.01); G02B 6/0068 (2013.01); G02F 1/1333 (2013.01); G02F 1/133331 (2021.01); G06V 10/143 (2022.01); G06V 10/147 (2022.01); G06V 10/54 (2022.01); G06V 40/00 (2022.01)] 15 Claims
OG exemplary drawing
 
1. A display module, comprising: a liquid crystal module, a cover plate, a texture recognition unit and a side-type backlight module; wherein
the texture recognition unit includes:
a first light source, located at a side of the cover plate proximate to the liquid crystal module, and configured to emit invisible light; and
a texture sensing module, located at a side of the liquid crystal module facing away from the cover plate;
wherein a light wavelength range of light allowed to pass through the cover plate and the liquid crystal module includes a light wavelength range of the invisible light; and the texture sensing module is configured to collect reflected light after the invisible light is irradiated to a target object, so as to identify a texture of the target object;
wherein the side-type backlight module includes:
a light guide plate, located at a side of the liquid crystal module facing away from the cover plate;
a second light source, located at a side face of the light guide plate, and configured to emit visible light;
at least one optical film, located at a side of the light guide plate proximate to the liquid crystal module, and a light wavelength range of light allowed to pass through the at least one optical film includes the light wavelength range of the invisible light and a light wavelength range of the visible light; and
a reflective sheet, located at a side of the light guide plate facing away from the liquid crystal module, and configured to reflect the visible light and transmit the invisible light;
wherein the texture sensing module is located at a side of the reflective sheet facing away from the light guide plate.