Liquid-crystal distributor with nozzle cleaner
A technology for distributing equipment and cleaning devices, which is applied in the direction of spraying devices, identification devices, cleaning flexible objects, etc., and can solve problems such as time extension, pollution, and increased cost of manufacturing LCDs
Inactive Publication Date: 2003-09-03
LG DISPLAY CO LTD
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Problems solved by technology
Therefore, it may take about 8 hours to inject liquid crystal material into a typical 15-inch LCD panel using the above-mentioned injection process
Therefore, the time required to manufacture LCDs using the liquid crystal injection process is unduly extended
[0013] Second, the amount of liquid crystal material required for the above liquid crystal injection process is very large
Therefore, a large amount of liquid crystal material reacts with nitrogen or other gases in the atmosphere and may be contaminated by them
As a result, the cost of manufacturing LCDs increases due to the necessity to discard the liquid crystal material that is not injected into the LCD panel after the injection process
Method used
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[0035] Reference will now be made in detail to the embodiments of the invention, examples of which are illustrated in the accompanying drawings.
[0036] In order to solve the problems existing in the aforementioned liquid crystal material injection method, a liquid crystal dispensing method is proposed. The liquid crystal dispensing method forms a liquid crystal layer by directly dispensing a liquid crystal material onto a substrate and uniformly distributing the dispensed liquid crystal material over the entire surface of the substrate by applying pressure to the substrate. The aforementioned liquid crystal dispensing method can arrange a liquid crystal material on a substrate in a short time, thereby enabling rapid formation of a liquid crystal layer in a large LCD panel. Since a predetermined amount of liquid crystal material is dispensed on the substrate, consumption of liquid crystal material is minimized and the cost of manufacturing the LCD can be reduced.
[0037] ...
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A liquid crystal dispensing apparatus includes a liquid crystal dispensing means and a nozzle cleaning means. The liquid crystal dispensing means includes a liquid crystal container for containing liquid crystal material and a nozzle through which the liquid crystal material may be dispensed on a substrate. The nozzle cleaning means is arranged around the nozzle and removes liquid crystal residue accumulated on a surface of the nozzle, moves to a lower portion of the nozzle to suck and remove the liquid crystal residue after liquid crystal material is dispensed by the liquid crystal dispensing means a predetermined number of times.
Description
technical field [0001] The present invention relates to a liquid crystal dispensing device, in particular to a liquid crystal dispensing device incorporating a cleaning device capable of removing liquid crystal residues accumulated on nozzles. Background technique [0002] With the continuous development of portable electronic devices such as mobile phones, personal digital assistants (PDAs), notebook computers, etc., such as liquid crystal displays (LCDs), plasma display panels (PDPs), field emission displays (FEDs), vacuum fluorescent displays ( Small, lightweight, and energy-efficient flat panel display devices such as VFDs have been the subject of intense research. LCDs are of particular interest due to their mass production, ease of driving, and superior picture quality. [0003] LCDs use the refractive anisotropy properties of liquid crystal materials to display information on the screen. refer to figure 1 , LCD1 generally includes a lower substrate 5 (ie, a driver ...
Claims
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IPC IPC(8): G02F1/1341B05B15/50B05B15/52B05C5/02B08B5/04G02F1/13G09F9/35
CPCB05C5/02B05B15/0208B08B5/04B05B15/52G02F1/13
Inventor 权赫珍孙海晙
Owner LG DISPLAY CO LTD