Light leaking prevention liquid crystal display

Abstract

The invention relates to the field of liquid crystal display, in particular to a light leaking prevention liquid crystal display which comprises a liquid crystal panel, a back plate, a middle frame and a rubber frame, wherein the back plate is concave; a reflection piece, a light guide plate and an optical membrane piece are sequentially arranged from bottom to top inside the back plate; the liquid crystal panel is arranged above the optical membrane piece; the middle frame is arranged outside the side surface of the back plate; the rubber frame is T-shaped and is arranged among the liquid crystal panel, the optical membrane piece, the side surface of the back plate and the middle frame; a bent part is arranged outside the side surface of the back plate; an extension part is arranged at the bottom of the middle frame; the vertical distance between one end corresponding to the bottom side of the back plate, of the bent part, and the bottom side of the back plate is equal to the thickness of the extension part; the bent part and the rubber frame are both positioned in an accommodation cavity formed among the back plate, the middle frame and the extension part of middle frame; the bent part and the back plate are integrally formed in a punched manner; the other end of the bent part is higher than the side surface of the back plate; the sum of the thicknesses of the rubber frame and the bent part is equal to the length of the extension part.

Description

Technical field [0001] The present invention relates to the technical field of liquid crystal displays, in particular to a light-leakage liquid crystal display. technical background [0002] The existing frameless liquid crystal display is generally composed of a liquid crystal display module, a middle frame, and a rear case. The liquid crystal display module includes a liquid crystal panel, a plastic frame, an optical film, a light guide plate, a light source, and a back plate. In the existing structural design schemes of ultra-thin liquid crystal displays, in order to enhance the heat dissipation of the liquid crystal display and reduce the thickness of the liquid crystal display at the same time, there is a design scheme that directly exposes the back plate and cancels the back shell at the same time, that is, replace the back shell with the back plate In this way, not only can the material for the rear case be omitted, and the process of rear case assembly can be reduced, but...

AI Technical Summary

Problems solved by technology

[0004] 1) If the light-shielding tape is pasted at each gap where the light path penetrates, it will destroy the appearance of the display back panel

[0005] 2) If an adhesive strip is installed at the matching gap formed between the backplane and the plastic frame, in order to block the light from passing through, but the thickness of the adhesive strip is difficult to control, because the gap between the backplane and the plastic frame is usually only 0.1 mm, the adhesive strip is too thin to achieve a blocking effect, and the adhesive strip is too thick to cause extrusion of the backplane and the rubber frame, making it difficult to combine the backplane and the rubber frame, and the setting of the adhesive strip needs to increase the production process, and it is easy to contaminate the backplane. Optical film in the board, affecting product quality

[0006] 3) If the extension of the middle frame is added at the bottom of the middle frame to cover the bottom surface of the backplane, so that it covers the light outlet of the matching gap, although this design can block the transmission of light, the extension of the middle frame increases the thickness of the display (like figure 2 shown), which affects the ultra-thin effect of the display

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