Liquid crystal display device

Abstract

The invention discloses a liquid crystal display device, which comprises a liquid crystal display panel, a backlight module and an outer frame, wherein the liquid crystal display panel and the backlight module are accommodated in the outer frame; the backlight module comprises a rubber frame, a light guide plate and a light source which is arranged on a light entering side of the light guide plate; a light-transmitting sealing plate for separating the light guide plate from the light source is fixedly arranged between the light guide plate from the light source; the light source is detachably and fixedly connected with the rubber frame or the outer frame; and the light source is electrically connected with an energy supply device in a pluggable mode. The light guide plate is separated from a light-emitting diode (LED) light bar through the light-transmitting sealing plate with high transmittance, so that the environment of the light guide plate is not influenced by the action of the LED light bar; the fixing mode of the LED light bar is changed into a mode of fixedly fastening the LED light bar in a withdrawing way, and an airtight device is arranged at an outlet of the withdrawing LED light bar. When the normal service life of the LED light bar is reached, the backlight brightness and a normal using effect can be achieved by only replacing the light bar instead of the whole liquid crystal display device, and the user cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of electronic display, in particular to a liquid crystal display device. Background technique [0002] With the development of the industry, mobile phones, digital cameras, digital video cameras, notebooks, desktop computers, televisions, etc. are all moving towards more convenient, multi-functional and beautiful directions. However, the display screens of mobile phones, digital cameras, digital video cameras, notebook computers, desktop computers and televisions are indispensable human-machine communication interfaces. The display screens of the above products will bring more convenience. In recent years, most of the display screens on mobile phones, digital cameras, digital video cameras, notebook computers, desktop computers and televisions have been dominated by liquid crystal display panels. [0003] Since the liquid crystal in the liquid crystal display panel does not emit light itself, in order to a...

AI Technical Summary

Problems solved by technology

After the service life is reached, the brightness of the LED light source decreases, making the picture seen by the user dim, and the normal viewing effect cannot be achieved, and the LCD panel still works normally

The LED lights are one-time assembly. Once opened, dust will enter the LCD panel, causing a short circuit in the drive circuit of the LCD panel and causing dead pixels. Therefore, the existing LCD panel cannot be opened after assembly.

In this way, the entire LED-backlit LCD panel must be replaced only because the brightness of the LED light is reduced, and even because the manufacturer stopped production later, there is no corresponding panel to replace

This causes a very large waste and causes great losses to users.

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