Backlight module and display device

Abstract

A backlight module comprises a back plate, a light-emitting assembly, a front frame, a rubber frame, an optical film set and an elastic piece. The light-emitting assembly is arranged on the back plate. The front frame is provided with an annular outer wall surrounding the back plate and a covering part protruding out of the inner surface of the annular outer wall. The cover portion extends from an inner surface of the annular outer wall to a position above a periphery of the back plate. The rubber frame is arranged between the periphery and the front frame and provided with an upper surface far away from the back plate and protruding columns protruding out of the upper surface, and each protruding column is provided with an inclined face inclining towards the annular outer wall. The optical film set is arranged on the side, away from the back plate, of the light-emitting assembly and provided with a surrounding area corresponding to the rubber frame. The surrounding area is located between the covering part and the rubber frame and provided with an opening. A gap is formed between the peripheral area and the upper surface. The protruding columns penetrate through the opening, and the inclined face of each protruding column makes contact with the wall face beside the opening. The elastic member is disposed between the peripheral area and the front frame. The invention also provides a display device comprising the backlight module. The backlight module and the display device can reduce the probability of deformation and collapse of the optical film group.

Description

technical field [0001] The present invention relates to an optical module and a display device, and in particular to a backlight module and a display device. Background technique [0002] The display device includes a backlight module and a display panel. The backlight module can provide a surface light source to the display panel so that users can watch images displayed on the display panel. In current display devices, a common practice is to use a plastic frame to carry the optical film group, and fix the optical film group to the protrusion structure of the plastic frame. However, in this method, a supporting structure must be added under the optical diaphragm group to support the optical diaphragm group, so as to avoid the deformation and collapse of the optical diaphragm group under the environment of high and low temperature changes due to cold shrinkage and thermal expansion, thereby affecting optical effect. [0003] However, increasing the supporting structure wi...

AI Technical Summary

Problems solved by technology

However, in this method, a supporting structure must be added under the optical diaphragm group to support the optical diaphragm group, so as to avoid the deformation and collapse of the optical diaphragm group under the environment of high and low temperature changes due to cold shrinkage and thermal expansion, thereby affecting optical effect

[0003] However, increasing the supporting structure will increase the overall thickness of the backlight module and the production cost

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