Vibration reduction and reinforcement method for large-size liquid crystal display

Abstract

A vibration reduction and reinforcement method for a large-size liquid crystal display, which realizes the gradual attenuation of vibration and shock through the flexible connection of the multi-layer fully laminated optical substrate in front of the large-size liquid crystal display and the flexible connection between the large-size liquid crystal display component and the structural front shell , The flexible connection structure is divided into a combined structure of a structural front shell, a conductive buffer layer, and a liquid crystal display component from top to bottom, or a combined structure of a structural outer front shell, a buffer bladder, a structural inner front shell, a conductive buffer layer, and a liquid crystal display component. The invention can not only improve the display quality and environmental reliability of the large-size liquid crystal display module in a strong vibration environment, reduce the failure rate of vibration shock, but also meet the requirements of light and thin liquid crystal display modules.

Description

technical field [0001] The invention relates to a liquid crystal display technology, in particular to a vibration reduction and reinforcement technology for a liquid crystal display, in particular to a vibration reduction and reinforcement method for a large-size liquid crystal display. Background technique [0002] In some special environments, liquid crystal displays need to work under extremely harsh conditions and need to withstand severe shock and vibration. Under the action of strong vibration, the vibration pressure produces periodic stress on the LCD screen, and the resulting harmonic vibration energy causes the display effect of the LCD screen to deteriorate, such as large-area stress spots, etc., especially when the display is in contact with the outside When the environment resonates, the display effect is the worst, and the accumulation of long-term vibration will also lead to cracking of the LCD screen and fatigue damage of components. The characteristic of imp...

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Problems solved by technology

[0003] The Chinese patent with the patent application number 200520050481.3 discloses a reinforced liquid crystal display. Active reinforcement of the liquid crystal display is realized by bonding a layer of glass on the upper and lower surfaces of the liquid crystal display, so as to meet the strong vibration and impact environment on the liquid crystal display. However, in fact, this method of blindly bonding glass on the upper and lower surfaces of the LCD screen will bring about many other display effects and environmental reliability problems. MURA display defects will appear when working under low temperature and high temperature

[0004] The Chinese patent with the patent application number 201020138446.8 discloses a multi-functional reinforced display device. By setting shielding glass and front panel in front of the liquid crystal display, a rear panel is arranged behind the liquid crystal display, and a power board and a control board are arranged on the inner surface of the rear panel. To meet the anti-vibration and impact capability of the multi-functional reinforced display device, however, this conventional liquid crystal display reinforcement method is effective for small and medium-sized liquid crystal display modules below 10.4 inches, and can be used for large-sized liquid crystal display modules, especially For liquid crystal displays larger than 15 inches, this conventional reinforcement method requires the thickness of the shielding glass attached to the front of the screen to be more than 5mm (mass about 1.3kg) to achieve the corresponding anti-vibration effect, which brings two problems : First, the glass in front of the screen is thick, which does not meet the requirements of light and thin reinforced display modules; second, during the vibration process, the overweight glass in front of the screen will generate greater periodic stress on the LCD screen, which is prone to cracking and crystal leakage of the LCD screen and other problems, reducing the environmental reliability of the LCD screen

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