Backlight module and liquid crystal display device

Abstract

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a backboard, a light guide plate, a light source and a rubber frame, wherein the backboard is used for accommodating the light guide plate, the light source and the rubber frame and comprises a base plate, a first sidewall and a second sidewall, wherein the first sidewall and the second sidewall extend towards the same direction along the two sides of the base plate; the light guide plate is arranged close to the base plate and comprises a first side surface and a second side surface which are arranged oppositely; the first side surface is arranged close to the light source and used as a light incident surface of the light guide plat; the rubber frame is arranged on the base plate and comprises a third sidewall and a fourth sidewall; the third sidewall is arranged between the first sidewall and the light source; the fourth sidewall is arranged between the second sidewall and the second side surface; the rubber frame also comprises at least one pressing mechanism; the pressing mechanism extends towards the second side surface of the light guide plate from the fourth sidewall and leans against the second side surface of the light guide plate so that the first side surface of the light guide plate is close to a light exit surface of the light source; the pressing mechanism and the rubber frame are integrally formed. The light guide plates of the backlight module and the liquid crystal display device are relatively high in light transmittance.

Description

technical field [0001] The invention relates to the display field, in particular to a backlight module and a liquid crystal display device. Background technique [0002] The backlight module is an important part of a liquid crystal display (Liquid Crystal Display, LCD). Since the liquid crystal itself does not emit light, a backlight module is required to provide light. The backlight module guides the light emitted by the light source into a flat light source by the light guide plate to supply the liquid crystal display panel. In the prior art, there is a gap between the light source and the light guide plate, and the light emitted by the light source leaks through the gap between the light source and the light guide plate, so that the light emitted by the light source cannot completely enter the light guide plate, causing the light incident rate of the light guide plate to be biased. Low. Contents of the invention [0003] The invention provides a backlight module, and...

AI Technical Summary

Problems solved by technology

In the prior art, there is a gap between the light source and the light guide plate, and the light emitted by the light source leaks through the gap between the light source and the light guide plate, so that the light emitted by the light source cannot completely enter the light guide plate, causing the light incident rate of the light guide plate to be biased. Low

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