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Apparatus and method for dispensing liquid crystal material

A liquid crystal material and dispensing device technology, which is applied to the device for coating liquid on the surface, the flow control of the electric device, the injection device, etc., which can solve the problems of reducing manufacturing efficiency, exposure to the atmosphere or certain gases, and consumption of liquid crystal materials. Increase and other issues

Inactive Publication Date: 2007-10-03
LG DISPLAY CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

For example, it takes about 8 hours to fully inject the liquid crystal material 14 into a 15-inch liquid crystal display panel, thus reducing manufacturing efficiency
[0021] Second, the consumption of liquid crystal material 14 increases in the liquid crystal injection method
Therefore, in the process of installing the liquid crystal display panel 1 into the vacuum chamber 10, the unused liquid crystal material 14 will be exposed to the atmosphere or certain gases, which will pollute the liquid crystal material 14.
Thus, any remaining liquid crystal material 14 must be discarded after injecting the liquid crystal material 14 into a plurality of liquid crystal display panels 1, which increases manufacturing costs.

Method used

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  • Apparatus and method for dispensing liquid crystal material
  • Apparatus and method for dispensing liquid crystal material
  • Apparatus and method for dispensing liquid crystal material

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Embodiment Construction

[0047] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0048] FIG. 4 is a cross-sectional view of an exemplary LCD device manufacturing method in accordance with the present invention. In FIG. 4 , before assembling the lower substrate 5 with the driving device and the upper substrate 103 with the color filters, a liquid crystal material 107 is dropped onto the lower substrate 105 . Optionally, the liquid crystal material 107 can be added dropwise on the upper substrate 103 on which the color filter is disposed. For example, the liquid crystal material 107 can be disposed on either a thin film transistor (TFT) substrate or a color filter (CF) substrate.

[0049] A sealing material 109 is coated along at least one peripheral portion of the upper substrate 103 . By applying pressure to the upper substrate 103 and the lower substrate 105 , the upper substrate 103 and the lower s...

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Abstract

A liquid crystal material dispensing apparatus includes a spacer height measuring unit for measuring a height of a spacer on a substrate, and a liquid crystal material dispensing system for determining an amount of the liquid crystal material to be dispensed on the substrate based upon the measured spacer height and for dispensing the liquid crystal material onto the substrate.

Description

[0001] This application is a divisional application of the Chinese patent application filed on March 24, 2003 with the application number 03107368.9 and the title of the invention being "Apparatus and method for distributing liquid crystal materials". technical field [0002] The invention relates to a liquid crystal dosing device, in particular to a liquid crystal dosing device for controlling the distribution amount of liquid crystal material on a substrate. Background technique [0003] Recently, portable electronic devices such as mobile phones, Personal Digital Assistants (PDAs), and notebook computers have been developed due to their small size, light weight, and energy efficient operation. Therefore, such as liquid crystal display (Liquid Crystal Display, LCD), plasma display panel (Plasma Display Panel, PDP), field emission display (Field Emission Display, FED), and vacuum fluorescent display (Vacuum Fluorescent Display, VFD) and the like Flat panel display devices h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1341G02F1/133G02F1/13
CPCB05B1/3046B05C5/0225G02F1/1303G02F1/1341G05D7/06
Inventor 金完洙朴武烈郑圣守权赫珍孙海晙
Owner LG DISPLAY CO LTD
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