Liquid crystal distributor

Abstract

A liquid crystal dispensing apparatus includes a liquid crystal material container filled with liquid crystal material a gas supply at an upper portion of the liquid crystal material container for pressurizing the liquid crystal material with gas, a needle seat positioned at a lower portion of the liquid crystal material container and having a discharge hole for discharging the liquid crystal material of the liquid crystal material container, a needle having first and second ends positioned within the liquid crystal material container to be movable along upward and downward directions, a first spring positioned at a first end of the needle, a solenoid coil positioned at the upper portion of the liquid crystal material container, a magnetic bar positioned adjacent to the first end of the needle within the solenoid coil for moving the needle along the upward direction by generating a magnetic force when power is applied to the solenoid coil, a second spring positioned around the magnetic bar within the magnetic coil, and a nozzle positioned at the lower portion of the liquid crystal material container for dispensing the liquid crystal material from the liquid crystal material container onto a surface of a substrate.

Description

technical field [0001] The present invention relates to a liquid crystal dispensing device, in particular to a liquid crystal distributing device capable of distributing precise and quantitative liquid crystals on a substrate and spreading the dispensed liquid crystals on the substrate. Background technique [0002] Recently, the development of various portable electronic devices such as mobile phones, personal digital assistants (PDAs), notebook computers, etc. has required flat panel display devices that are light in weight, small in size and suitable for portable electronic devices. Various types of flat panel display devices developed for these portable electronic devices include liquid crystal displays (LCDs), plasma display panels (PDPs), field emission displays (FEDs), and vacuum fluorescent displays (VFDs). [0003] FIG. 1 is a cross-sectional view of a prior art liquid crystal display device. Referring to FIG. 1 , an LCD 1 includes a lower substrate 5 , an upper su...

AI Technical Summary

Problems solved by technology

In addition, when the liquid crystal material is exposed to the atmosphere or some kind of gas, the liquid crystal material will deteriorate due to the reaction

Furthermore, when in contact with the liquid crystal panel 1, the liquid crystal material 14 will be deteriorated due to impurities.

As a result, the remaining liquid crystal material in the container 12 must be discarded after filling each liquid crystal panel 1, which increases manufacturing costs.

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