Pressure stabilizing air-floating type liquid crystal display screen with vibration reduction and impact resistance functions

Abstract

The invention relates to a pressure-stabilizing air-floating type liquid crystal display screen with vibration reduction and impact resistance functions. The liquid crystal display screen is characterized in that a front panel assembly comprises a front shell assembly and an internal screen core assembly; the front shell assembly comprises a screen front panel, anti-collision cotton, shielding glass and a glass pressing frame; the shielding glass is fixed on the screen front panel through the glass pressing frame; the anti-collision cotton is adhered to the glass pressing frame; the internal screen core assembly comprises a pressure stabilizing air-floating type vibration reduction and impact resisting part, a screen installation transition plate, a screen reinforcing piece, a liquid crystal screen and an AD conversion plate; the liquid crystal screen and the AD conversion plate are fixed on the screen reinforcing piece; one end of the pressure-stabilizing air-floating vibration reduction and impact resisting part is connected with the screen reinforcing piece, and the other end of the pressure-stabilizing air-floating vibration reduction and impact resisting part is mounted on the screen installation transition plate; the pressure-stabilizing air-floating vibration reduction and impact resisting part comprises air-floating assemblies, constant-pressure source hoses and a constant-pressure source, and the air-floating assemblies are symmetrically installed on the two sides of the constant-pressure source through the constant-pressure source hoses. The anti-vibration level of the large-size liquid crystal display is improved, the safety and stability of equipment are guaranteed, and the requirement for application in a high-vibration environment is met.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and relates to vibration reduction and anti-shock control of liquid crystal screens, in particular to a voltage-stabilizing air-floating liquid crystal display screen with vibration-reduction and anti-shock functions. Background technique [0002] In harsh environments with high vibration and strong impact, large-size liquid crystal displays have been widely used and played an important role. With the development of precision and integration of LCD screen equipment and the increasing demand for localization, the problem of relatively low anti-vibration indicators of localized LCD screens has been magnified in the military field. Since the anti-vibration index of the liquid crystal screen gradually decreases with the increase of its size, it is easy to cause part of the liquid crystal array to fail when it is impacted, resulting in irrecoverable lines on the display section. Theref...

AI Technical Summary

Problems solved by technology

When the commonly used equipment is inspected according to the reinforced type b standard in GJB 322A, the inspection index is 1mm below 15Hz and 9.8m / s2 above 15Hz. This index is already higher than the vibration index of the LCD screen in the test frequency band. It is easy to cause irreversible lines in the display area of ​​the LCD screen, resulting in irreversible damage to the LCD screen.

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