Back plate of improved backlight unit

Abstract

The invention discloses a back plate of an improved backlight unit. The back plate of the improved backlight unit comprises a bottom layer and a high-reflection layer arranged on the bottom layer, wherein the bottom layer is an acrylonitrile butadiene styrene (ABS) plastic layer, the high-reflection layer is a poly carbonate (PC) plastic layer, and reflection particles accounts 10-30wt% of PC plastic. Because the high-reflection layer is arranged on the ABS plastic layer, and the high-reflection layer is the PC plastic layer with the reflection particles mixed, when light of a backlight source of the backlight unit is transmitted on the back plate, light waves can be transmitted into the high-reflection layer through transparent characteristics of the PC plastic, and light reflection and diffusion characteristics of the reflection particles inside the high-reflection layer are utilized to reflect out light waves in the high-reflection layer to ensure that the back plate is provided with reflective effect without additionally arranging a reflective sheet, and the problem that because reflective sheets are additionally arranged on the original back plate, installment procedures of the backlight unit are trial and work load of workers is increased is avoided.

Description

technical field [0001] The invention relates to a backlight module, in particular to a backplane of the backlight module. Background technique [0002] The backlight module is one of the key components of the liquid crystal display panel. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply sufficient brightness and uniformly distributed light source so that it can display images normally. Existing backlight modules mainly include: backplane, light guide plate and backlight source, among which the backplane is mostly used for the appearance and protection of backlight, light guide plate and other components, and is generally made of the same material. It is made of lower plastic (such as ABS plastic). However, this kind of backplane not only cannot reflect the light, but also causes the loss of optical energy. Therefore, the optical loss caused by the backplane must be compensated by a reflector, then During the installation...

AI Technical Summary

Problems solved by technology

Existing backlight modules mainly include: backplane, light guide plate and backlight source, among which the backplane is mostly used for the appearance and protection of backlight, light guide plate and other components, and is generally made of the same material. It is made of lower plastic (such as ABS plastic). However, this kind of backplane not only cannot reflect the light, but also causes the loss of optical energy. Therefore, the optical loss caused by the backplane must be compensated by a reflector, then During installation, there is an additional process of installing reflectors on the inner side of the backplane, which makes the installation process of the backlight module more troublesome and increases the labor load of workers

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