Liquid crystal display device module

Abstract

The invention discloses a liquid crystal display module, comprising a light source, a metal backing plate, a light guide plate, an upper frame contacted with the edge of the light guide plate, an optical thin-film, a liquid crystal panel, a metal frame and a silica gel pad arranged between the upper frame and the liquid crystal panel, wherein a surface of the silica gel pad contacted with the liquid display panel is of a curved surface; the shape of the curved surface is undulatory or indented or concavo-convex and has anti-compression elasticity; a ribbing type structure is arranged close to the contacting position of the upper frame contacted with the light guide plate and the light guide plate; and a section of the ribbing type structure is of square, rectangle, trapezium, triangle or comb. The liquid crystal display module has the advantage that the silica gel pad with a new structure is arranged between the liquid crystal panel and the upper frame, the ribbing type structure arranged on the lower end of the upper frame is designed to improve deformation and wrap of the light guide plate under the excessive heat and humidity environment, thereby improving the reliability of the liquid crystal display module.

Description

technical field [0001] The invention relates to a liquid crystal display (LCD) module, in particular to an upper frame structure of the liquid crystal display module and an accessory structure thereof. Background technique [0002] figure 1 is a schematic cross-sectional view of an LCD module in the prior art. Such as figure 1 As shown, the liquid crystal display module includes: a liquid crystal panel 1, a metal frame 2, an optical film 3, a silicone pad 4, an upper frame 5, a light guide plate 6, a metal back plate 7 and other components. When the above components are assembled, the metal backplane 7 is used as a reference, and the light guide plate 6 is loaded into the metal backplane 7, and then a series of optical films 3 are installed on the light guide plate 6. After the matching of each position is correct, it is loaded from above Frame 5, and then set the liquid crystal panel 1 above the upper frame 5, wherein the silicone pad 4 is set in the contact area between...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned prior art uses a rectangular silicone pad 4 to control the distance between the light guide plate 6 and the liquid crystal panel 1. Due to its poor elasticity and partial melting after being heated for a long time, the liquid crystal panel 1 and the silicone pad 6 stick immediately, and at the same time As a result, the liquid crystal panel 1 has unstable reliability performance under high temperature and high humidity conditions, and it is easy to cause poor assembly gap display (GAP MURA), display ripple phenomenon (RIPPLE) and other reliability problems.

[0004] In addition, since the material of the light guide plate is polymethyl methacrylate (PMMA), which has the property of absorbing water and deforming, if it is not controlled, it will affect the reliability of the liquid crystal panel

[0005] In the prior art, the effective structure of the upper frame prevents the warping of the optical film and the bending of the light guide plate, and achieves the purpose of preventing particles from entering the display area. There is a certain reference in the existing patent US 7,095,461, but it lacks perfection. It is very difficult to implement

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