Profiled high-screen-occupation-ratio backlight module and control method thereof

Abstract

The invention discloses a profiled high-screen-occupation-ratio backlight module and a control method thereof. The backlight module comprises a light guide plate and a light source arranged on the light incidence side of the light guide plate. The light guide plate comprises a first light-exiting surface located on the upper part of the light guide plate, and two second light-exiting surfaces located at the lower part of the light guide plate. A space for setting a virtual key is arranged between the two second light-exiting surfaces. According to the technical scheme of the invention, two second light-exiting surfaces are additionally arranged at the bottom of the module, so that the screen occupation ratio is increased. The first light-exiting surface is arranged above the two second light-exiting surfaces. In this way, the optical path is shortened and the frame area is reduced. Therefore, the area of the first light-exiting surface is increased, so that the screen occupation ratio is further increased. In general, the screen occupation ratio is increased by more than 10%, so tputat the visual experience of consumers is more optimized. The on and off states of the first light-exiting surface and the second light-exiting surfaces can be respectively controlled. When only the second light-exiting surfaces are put to use, only a portion of LED lamps are running. Therefore, the power consumption is reduced and the electric quantity is saved.

Description

technical field [0001] The invention relates to a backlight module, in particular to a special-shaped high-screen ratio backlight module and a control method thereof. Background technique [0002] At present, the wave of replacement of smartphones in the market has passed. In order to promote consumers’ desire for replacement, sellers have begun to boldly imagine the appearance and visual enjoyment of smartphones. Mobile phones with high screen-to-body ratios are increasingly favored by consumers. . The screen-to-body ratio refers to the relative ratio of the screen to the area of ​​the front panel of the mobile phone. It is a parameter that is easier to obtain visual favorability in the design of the mobile phone. The current situation of mobile phones is that the screen-to-body ratio is small, especially the upper and lower borders occupy a large screen-to-body ratio due to the handset, camera, and HOME button, resulting in a low screen-to-body ratio utilization rate unde...

AI Technical Summary

Problems solved by technology

The current situation of mobile phones is that the screen-to-body ratio is small, especially the upper and lower borders occupy a large screen-to-body ratio due to the handset, camera, and HOME button, resulting in a low screen-to-body ratio under the premise of the shape.

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