A kind of backlight module and mobile terminal

Abstract

The present invention provides a backlight module and a mobile terminal. The backlight module includes a light guide plate, the light guide plate includes a light exit surface and a bottom surface opposite to the light exit surface, and the light guide plate forms a light incident side at a part of the corresponding bottom surface that exceeds the light exit surface. The light-incident side includes a beveled surface between the bottom surface and the light-emitting surface, and a light-incident area formed by the orthographic projection of the beveled surface on the bottom surface; a reflective layer, the reflective layer covers the beveled surface, and the reflective surface of the reflective layer faces The bottom surface is arranged; the light source part, the light source part includes a light-emitting element, the light source part is arranged on the light-incident side, and the light-emitting element is located on the side of the bottom surface, and the light-emitting surface of the light-emitting element is set toward the light-incident area. This can effectively reduce the required installation space of the light-emitting element on the light-incident side of the light guide plate, thereby reducing the width of the black border of the backlight module, thereby increasing the screen-to-body ratio of the mobile terminal.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a backlight module and a mobile terminal. Background technique [0002] At present, mobile terminals such as mobile phones include a display area and a black border area. In order to increase the screen-to-body ratio of the mobile terminal to meet user needs, it is generally achieved by reducing the black border area of ​​the mobile terminal. The black border area includes an upper black border area and a lower black border area. Among them, the upper black border area is generally the setting area of ​​the receiver and the camera, and the width of the upper black border area can be reduced by designing the receiver or camera under the screen; the lower black border area includes the backlight module beyond the display area of ​​the display screen. For the display part, under the premise of ensuring the working performance of the display screen, the limit size of the non-d...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a backlight module and a mobile terminal to solve the problem of low screen-to-body ratio in mobile terminals in the prior art

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