Backlight module and display device

Abstract

The embodiment of the invention relates to a backlight module and a display device. The backlight module comprises a light guide plate, a first light source arranged along the first side edge of the light guide plate and multiple second light sources arranged along at least one of the two side edges, perpendicular to the first side edge, of the light guide plate, wherein the multiple second light sources have different color temperatures, the color temperatures of the second light sources located at different positions are determined according to the light absorbing characteristics of the light guide plate so as to compensate the lights with the colors corresponding to the color temperatures of the second light sources and absorbed by the light guide plate.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a backlight module and a display device. Background technique [0002] With the continuous development of liquid crystal display technology, the application fields of liquid crystal display devices, especially color liquid crystal display devices, are also expanding, and the requirements for user experience are gradually increasing. development trend. [0003] The backlight module is one of the important components of the liquid crystal display, which is used to provide light with sufficient brightness and uniformity for the liquid crystal panel. At present, the acrylic plate is usually used as the light guide plate of the backlight module. Due to its small light absorption coefficient, it absorbs less light propagating therein, and can obtain relatively uniform outgoing light. However, it is well known that acrylic (PMMA) plates have lower temperatur...

AI Technical Summary

Problems solved by technology

Generally, the farther away from the light source, the more serious the absorption, which seriously affects the uniformity of the emitted light of the backlight module, resulting in serious color shift of the light emitted from the light emitting surface of the light guide plate, thus affecting the display effect of the display

It can be seen that it is difficult to meet the requirements of reducing the thickness of the light guide plate and obtaining uniform outgoing light at the same time.

Images