| 摘要 |
PROBLEM TO BE SOLVED: To provide a back light module which is provided with a back plate and a diffusion plate and is provided for coupling with a display panel.SOLUTION: A plurality of light bars are attached to a back plate, at least one light emission module is disposed with each light bar, each light emission module has an LED light source of positive direction and at least a pair of LED light sources of non-positive direction, the pair of LED light sources of non-positive direction are disposed on a lateral edge of the LED light source of positive direction, emission light of the LED light source of positive direction is coupled with emission light of the LED light source of each non-positive direction and forms light forms of diffusion with a diffusion plate and the light forms of diffusion formed by each light emission module are connected with each other with the diffusion plate to form a distribution. When the backlight module is applied, the installation number of light bars is decreased, thereby, the weight, volume and cost of the backlight module and the whole liquid crystal display device can be reduced and, moreover, the problem of brightness and darkness imbalance due to the conventional backlight module can be reinforced. |
