Backlight module and frame and assembling method thereof

Abstract

The invention discloses a backlight module, a frame and an assembling method thereof. The frame comprises an incident side frame strip, a retaining block and a shielding sheet. The retaining block is arranged on the incident side frame strip and is between the incident side frame strip and a light guide plate. The retaining block is provided with a surface for propping the side edge of the light guide plate. The shielding sheet is arranged on the incident side frame strip, is connected with the retaining block and extends and protrudes out of the retaining block. The shielding sheet can be used for shielding a light source, the surface of part of the retaining block close to the light guide plate and the side edge of part of the light guide plate, wherein the shielding sheet is provided with an opening; and the opening corresponds to the retaining block and is arranged so as to expose part of the surface of the retaining block. An inspector can observe whether the surface of the retaining block props against the side edge of the light guide plate through the opening so as to judge whether the light guide plate is correctly arranged in the frame.

Description

technical field [0001] The present invention relates to a display, and in particular to a backlight module of the display. Background technique [0002] The backlight module is one of the key components of the liquid crystal display. Since the liquid crystal itself does not emit light, a backlight module is needed to supply light so that the liquid crystal panel can provide normal images with uniform brightness. There are multiple optical sheets in the backlight module, such as a light guide plate, a diffusion sheet and a prism sheet, which are used to evenly distribute the light emitted by the light source on the liquid crystal panel, thereby increasing the brightness of the liquid crystal panel. [0003] The assembly process of the backlight module is to combine the frame, light source and various optical sheets, such as light guide plate, diffusion sheet, etc. During the assembly process of the backlight module, the light source will be fixed on the side of the frame, a...

AI Technical Summary

Problems solved by technology

[0006] If the light guide plate 120 is installed incorrectly, such as Figure 1A and Figure 1B As shown, the distance between the light source 110 and the light-incident side of the light guide plate 120 is not zero and the distance is not equal, which will cause the brightness and uniformity of the backlight module 100 to decrease, and reduce the production yield.

[0007] However, because the frame 200 covers the light source 110 and the top of the light incident side of the light guide plate 120, it is difficult for inspectors to visually judge whether the light guide plate 120 is assembled correctly during the assembly process.

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