Paste division filling device for producing plate display device

Abstract

To minimize a movement of a dispense head, to enable a reduction in vibration at work and forming accurate pattern formation and to enable paste coating corresponding to a large-sizing of a planar display device without tremendously increasing the size of the paste coater. A paste coater is composed of a frame, a fixed table provided on the upper surface of the frame, a movable stage in forward and backward directions on the upper part of the fixed table, a first linear motor driving the stage in forward and backward directions, a Y-axis arranged at both sides of the fixed table having length in forward and backward directions of the frame, a column arranged across between the both sides of Y-axis movable along the Y-axis, a second linear motor driving the column in Y-axis direction, a plurality of head units coating a substrate, mounted on the stage which is movable along the column, with paste in a longitudinal direction and in an orthogonal direction to the Y-axis, and a third linear motor driving each head unit in the orthogonal direction to the Y-axis.

Description

technical field [0001] The present invention relates to a paste dispenser for coating paste in a predetermined pattern on a substrate in a flat panel display manufacturing process, and more particularly, to an improved paste dispenser for applying paste on a glass substrate of a flat panel display such as an LCD Paste dispenser for a drive system that applies paste in a predetermined pattern. Background technique [0002] As we all know, LCD (Liquid Crystal Display) is a kind of flat-panel display, which is used as a next-generation display (such as a monitor of a mobile phone or a computer, or a TV receiver, and a PDP (Plasma Display Panel), or FED (Field Emission Displays)) have attracted attention because LCDs have excellent visibility compared to CRTs, and have lower power consumption and heat generation than CRTs of the same screen size. [0003] LCDs are manufactured by forming a plurality of pixels on one glass substrate, forming a color filter layer on another glass...

AI Technical Summary

Problems solved by technology

[0011] However, prior art paste dispensers with the above system and operating characteristics have the following disadvantages and problems, and these disadvantages and problems will be exacerbated with the trend to manufacture larger glass substrates

[0012] First, since the size and weight of the stage increase as the size of the glass substrate increases, the noise or vibration from the driving parts or the like of the prior art paste dispenser driven by the ball screw will increase with time. increase

[0013] At the same time, compared with the linear motor, the ball screw of the paste dispenser of the prior art is prone to a wider range of accuracy errors

[0014] That is, in the paste coating method of the related art, since it is necessary to apply the paste to the entire glass substrate by driving the head only in the X-axis and Y-axis directions in a state where the head is fixed. On the surface, so in the case of larger flat-panel displays, it is necessary to rapidly increase the overall size of the dispenser to ensure that the stage and stage movement space are proportional to the increase in the size of the glass substrate, with the increase in size and weight Increased, noise and vibration also increased, thereby reducing the accuracy of coating

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