Light conducting plate structure and back light module unit

Abstract

A light guiding plate structure comprises an outlet surface; a first side surface and a second side surface both of which are connected to the two sides of the outlet surfaces respectively; and a bottom surface connected to the first side surface and a second side surface. The bottom surface comprises the inlet surface and a bottom reflective surface, the upright projection of the first side surface on the bottom surface contains the inlet surface, light ray emitted from the inlet surface is reflected by the first side surface to one of the second side surface and the bottom reflective surface, and is emitted by the outlet surface. The first side surface comprises a third location surface connected with the outlet surface, a first inclination surface connected with the bottom surface and the third location surface. The invention also provides a backlight module comprising the light guiding plate structure. Light ray emitted by the light source can be irradiated evenly by the light guiding plate to improve the integral brightness evenness and solve the problem of uneven brightness caused by the thin type of the backlight module. In addition, the number of the light sources is reduced, so that weight of the backlight module is lowered.

Description

technical field [0001] The invention relates to a light guide plate structure and a backlight module, in particular to a light guide plate structure and a backlight module of a liquid crystal panel. Background technique [0002] Due to the rapid development of Internet and wireless communication technologies, portable information products such as notebook computers, personal digital assistants, mobile phones, and digital cameras are gradually becoming popular. Due to the development of information products towards light, thin, short, and small targets, traditional cathode ray tube screens are limited by problems such as large size and large energy consumption, and cannot meet the actual needs of users, so they are gradually eliminated by the market. It is replaced by a liquid crystal display (liquid crystal display, LCD) which has the advantages of small size and low power consumption. [0003] see figure 1 As shown, it is a schematic diagram of a conventional backlight mo...

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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a light guide plate structure and a backlight module including the light guide plate structure, which can solve the problem of uneven brightness and darkness caused by the thinning of the existing backlight module, and can also reduce the light source. number, thereby reducing the weight of the backlight module

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