Backlight module including a light guide plate comprising concave and convex lens structures, control method thereof and display device
AssigneesHEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. Anhui, China, Boe Technology Group Co., Ltd.
InventorJun Xu
Life of this patent
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Abstract
A backlight module comprising a plurality of light sources and a light guide plate. The plurality of light sources comprises a plurality of first light sources and a plurality of second light sources. The light guide plate comprises a plurality of concave lens structures and a plurality of convex lens structures on a side of the light guide plate distant from the plurality of light sources. The plurality of concave lens structures and the plurality of convex lens structures correspond to the plurality of first light sources and the plurality of second light sources, respectively. A method for controlling a backlight module and a display device including the backlight module is also provided.
Claims18
A backlight module, comprising a plurality of light sources and a light guide plate, wherein
- said plurality of light sources comprise a plurality of first light sources and a plurality of second light sources,
- said light guide plate comprises a plurality of concave lens structures and a plurality of convex lens structures on a side of the light guide plate distant from said plurality of light sources, and
- said plurality of concave lens structures and said plurality of convex lens structures correspond to said plurality of first light sources and said plurality of second light sources, respectively,
- wherein said plurality of concave lens structures and said plurality of convex lens structures are arranged alternately in both a row direction and a column direction, and said plurality of first light sources and said plurality of second light sources are arranged alternately in both a row direction and a column direction.
A method for controlling a backlight module, said backlight module comprising a plurality of light sources and a light guide plate, said plurality of light sources comprising a plurality of first light sources and a plurality of second light sources, said backlight module further comprising a controller, said controller being connected to said plurality of first light sources via a first control line and connected to said plurality of second light sources via a second control line, said light guide plate comprising a plurality of concave lens structures and a plurality of convex lens structures on a side of the light guide plate distant from said plurality of light sources, and said plurality of concave lens structures and said plurality of convex lens structures corresponding to said plurality of first light sources and said plurality of second light sources, respectively, wherein said plurality of concave lens structures and said plurality of convex lens structures are arranged alternately in both a row direction and a column direction, and said plurality of first light sources and said plurality of second light sources are arranged alternately in both a row direction and a column direction, said method comprises:
- in a first mode of said backlight module, said controller controlling said plurality of first light sources to emit light and controlling said plurality of second light sources to not emit light, and
- in a second mode of said backlight module, said controller controlling said plurality of first light sources to not emit light and controlling said plurality of second light sources to emit light.
Dependencies are inferred from the claim text.