Light bar and backlight module using same

摘要

The present invention provides a light bar and a backlight module using the light bar. The light bar includes: a circuit board (2), a quantum dot rail (4) mounted and fixed to the circuit board (2), and a light source (6) mounted to the circuit board (2) and located between the circuit board (2) and the quantum dot rail (4). The light source (6) is electrically connected to the circuit board (2). In the light bar and the backlight module using the light bar according to the present invention, the retention members are mounted to the circuit board of the light bar to allow the quantum dot rail to be directly mounted to the circuit board through snap engagement so as to enhance color saturation and at the same time simplifying the mounting structure and effectively reducing the manufacturing cost. Further, the retention members are made elastic components that can effectively protect the quantum dot rail from being damaged by external forces acting on the quantum dot rail and can simplifying the process of mounting thereby further reducing the manufacturing cost.

主权项

1. A light bar, comprising: a circuit board, a quantum dot rail mounted and fixed to the circuit board, and a light source mounted to the circuit board and located between the circuit board and the quantum dot rail, the light source being electrically connected to the circuit board;
wherein the circuit board comprises a plurality of retention members mounted thereto, each of the retention members comprising a mounting section that has an end fixed to the circuit board and an opposite, free end to which a retention section is mounted to carry and support the quantum dot rail in position, the mounting section and the retention section being each formed of an elastic material, the mounting section being in the form of a slender pillar smaller in cross-sectional area than the retention section; wherein the retention section of each of the retention members comprises a bottom wall that is mounted to the free end of the slender pillar of the mounting section to be spaced from the circuit board, the light source that is mounted to the circuit board is located between the bottom wall of the retention section and the circuit board; wherein the retention section of each of the retention members comprises two separate U-shaped end configurations that are connected to each other by the bottom wall to have openings thereof facing each other so as to define a retention channel, the quantum dot rail being received and retained in the retention channel and supported on the bottom wall of the retention member to be spaced from the circuit board and the light source; wherein the plurality of retention members are arranged to be spaced from each other so as to expose a portion of the quantum dot rail that is located between the bottom walls of the retention sections of two adjacent ones of the retention members to the light source directly mounted on the circuit board; wherein the circuit board has a surface on which the light source is mounted and the mounting sections of the retention members are fixed to the surface of the circuit board and distributed on the surface of the circuit board in a predetermined direction so as to be alternate with the light source in the predetermined direction, the quantum dot rail being carried and supported on the retention sections of the retention members to extend in the predetermined direction.