公开(公告)号：US20220113590A1

公开(公告)日：2022-04-14

申请号：US17265061

申请日：2020-03-30

申请人： BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Zhiqiang WANG ,  Fangyu SONG ,  Xin MA ,  Qiuli WANG ,  Jianfeng YAO ,  Chuan SUN

IPC分类号： G02F1/13357 ,  G02F1/1335

摘要： A backlight module and a display device are disclosed. The backlight module includes a light emitting element array including a plurality of light emitting elements that emit blue light; a quantum dot film disposed on a light-emergent side of the light emitting element array and having a middle area and an edge area, the edge area surrounding the middle area; and a light conversion layer disposed on the light-emergent side of the light emitting element array, wherein an orthographic projection of the light conversion layer on the quantum dot film is located in the edge area of the quantum dot film, a material of the light conversion layer includes a first light conversion material configured to emit red light under excitation of light from the light emitting element and a second light conversion material configured to emit green light under excitation of light from the light emitting element.

公开(公告)号：US20220373161A1

公开(公告)日：2022-11-24

申请号：US17765071

申请日：2021-05-20

申请人： Beijing BOE Optoelectronics Technology Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Jianfeng YAO ,  Qiuli WANG ,  Lei CHEN ,  Zhiqiang WANG ,  Xin MA ,  Chuan SUN ,  Xinyu WANG ,  Dingyang TAN

IPC分类号： F21V9/30

摘要： There are provided a backlight assembly (1) and a display device, the backlight assembly (1) includes a light source substrate (10), a microstructure film layer (30) and a backlight film material layer (20); the backlight film material layer (20) is located on a light outgoing side of the light source substrate (10), the microstructure film layer (30) is provided between the light source substrate (10) and the backlight film material layer (20), the microstructure film layer (30) includes a light transmission layer (301) and a microstructure region (302); the microstructure region (302) is provided at an edge position of the microstructure film layer (30). The combination of the microstructure region (302) and the light transmission layer (301) can change, at the edge position, an outgoing angle of all or part of backlight passing through the microstructure region (302), so that all or part of the backlight passing through the microstructure region (302) is deflected from a direction perpendicular to the edge where the microstructure region (302) is located and is refracted away from a center of the microstructure film layer (30), thereby an optical path of the backlight with the changed outgoing angle when passing through the backlight film material layer (20) is increased, more red light and green light are excited, and thus a problem of uneven chromaticity of a bluish edge of the backlight during full screen displaying is solved.

公开(公告)号：US20210405452A1

公开(公告)日：2021-12-30

申请号：US17344054

申请日：2021-06-10

申请人： Beijing BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

发明人： Qiuli WANG ,  Lei CHEN ,  Zhiqiang WANG ,  Xin MA ,  Chuan SUN ,  Jianfeng YAO ,  Xinyu WANG ,  Dingyang TAN

IPC分类号： G02F1/1335 ,  F21V8/00

摘要： The present disclosure discloses a backlight module and a display apparatus. A microprism film layer is further arranged on a light emitting side of a light guide plate, and the microprism film layer is located in a range of a preset distance by which the light guide plate extends from a side close to a light source to a side away from the light source; and the microprism film layer includes a plurality of first microprism structures, and the first microprism structures are configured to make an incident angle of light at a first interface when entering the first microprism structures greater than an emitting angle of the light at the first interface when exiting from the first microprism structures when the light in the light guide plate enters the first microprism structures from the light guide plate and then enters the light guide plate from the first microprism structures.

公开(公告)号：US20210215987A1

公开(公告)日：2021-07-15

申请号：US16634664

申请日：2018-12-07

申请人： BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Lei CHEN ,  Qi ZHANG ,  Xuerong WANG ,  Zhiqiang WANG ,  Xin MA ,  Chuan SUN ,  Qiuli WANG ,  Bochao RUI ,  Lingyun SHI ,  Hao ZHANG

IPC分类号： G02F1/155 ,  G02F1/163 ,  G02F1/1524

摘要： A visual range adjustment component and a driving method thereof, a visual range adjustment device, and a display device are disclosed. The visual range adjustment component includes a first substrate; a second substrate; an electrolyte layer; and a plurality of electrochromic elements. Each of the plurality of electrochromic elements includes a first transparent electrode, two second transparent electrodes and an electrochromic layer; the first transparent electrode is located on a side of the first substrate facing the second substrate and the second transparent electrode is located on a side of the second substrate facing the first substrate; the electrolyte layer is arranged to be in contact with the first transparent electrode, the second transparent electrode, and the electrochromic layer, respectively; the first transparent electrode and the two second transparent electrodes respectively drive the electrochromic layer to change color through the electrolyte layer to adjust a visual range.