Backlight module and liquid crystal display using same

Abstract

The invention discloses a backlight module and a liquid crystal display using the same, wherein the backlight module at least comprises a back plate, a light guide plate, a rubber frame, a circuit board and a plurality of point light sources. The light guide plate is arranged on one surface of the back plate; the rubber frame is arranged on the surface of the back plate and positioned outside oneside face of the light guide plate, comprises adjacent first and second surfaces, and is provided with a plurality of accommodating spaces, wherein the first surface of the rubber frame faces the side face of the light guide plate and each accommodating space is provided with first and second openings on the first and second surfaces of the rubber frame respectively; the circuit board is arrangedbetween the second surface of the rubber frame and the surface of the back plate; and the plurality of point light sources are fixedly arranged on the circuit board and respectively and correspondingly embedded in the accommodating spaces of the rubber frame, wherein the light emergent face of each point light source is positioned in the first opening of the corresponding accommodating space and faces the side face of the light guide plate.

Description

Technical field [0001] The present invention relates to a backlight module and its application, and more particularly to a backlight module with a point light source and its application on a liquid crystal display. Background technique [0002] In the development of liquid crystal display technology, because light-emitting diodes (LEDs) are low-energy and environmentally friendly light sources, and their luminous efficiency and color saturation are extremely excellent, the current development trend is toward the use of light-emitting diodes as backlights The light source of the module to replace the traditional cold cathode lamp (CCFL) light source. In the current design of light-emitting diode backlight modules, most of the light-emitting diodes are arranged in a linear manner to provide a linear light source, or the light-emitting diodes are arranged in a matrix to provide a surface light source, instead of cold cathode lamps, and are applied to the side input. Light type back...

AI Technical Summary

Problems solved by technology

[0005] However, since the light emitted from the LED element 114 is usually only emitted from the light emitting surface 116, the light source reflector 112 is not optimally designed for the light source of the LED element 114, so it cannot perfectly fit the new light source. Diode application

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