JP2008242404A - Scattering device of liquid crystal panel spacer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive device which scatters liquid crystal panel spacers to only a designated part and of which the setup change is easy. <P>SOLUTION: In this scattering device, holes 2 having a minute diameter or slits having a minute width are provided in a wall surface of a container of pipe-shaped spacers 4 at required intervals in a lengthwise direction of the wall surface. This hole diameter is several to ten times as large as a spacer diameter. The slit width is slightly larger than the spacer diameter, and the slit length is approximately equal to that of a black matrix part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a spacer spraying device that secures a gap between two glass substrates of a liquid crystal panel.

There are various methods of spraying the spacers, and many devices are used to spray the entire surface of the substrate by air blowing. However, the spacers are sprayed into the effective pixels or aggregated to adversely affect the image. Several methods for spreading outside the effective pixels, for example, the black matrix portion have been proposed, but the apparatus is expensive.

Problems to be solved by the invention

Prices of TVs, personal computers, mobile phones, etc., which use liquid crystal panels, are drastically reduced, and higher image quality is required. And the model change is fast. Therefore, the manufacturing apparatus is required to clear high demands, be easy to change the setup, and be inexpensive.

The present invention provides a liquid crystal panel spacer that is sprayed only on a designated portion and can be easily replaced at low cost.

It is also possible to supply a fixing adhesive together with the spacer.

Means for solving the problem

A hole with a small diameter or a slit with a small width is installed at a required interval on the wall surface of the pipe-shaped spacer storage container. The hole diameter is slightly larger than the spacer diameter, or about several to ten times. The slit width is slightly larger than the spacer diameter, and the length is substantially the same as the black matrix portion. The required interval between the holes is an integral multiple of the interval of the black matrix of the liquid crystal panel. (Choose an appropriate interval instead of spraying all over the black matrix)
Small diameter holes or very narrow slits do not easily pass through powdered spacers when stationary.

Install a vibrator on the outer wall of the spacer container.

The minute holes of this storage container are faced to a horizontally placed glass substrate and matched to the required spraying position.

This container is filled with a spacer and is vibrated with a vibrator. The internal spacer falls to a predetermined position on the glass substrate by this vibration. The position is moved one after another, the spacer is dropped, and the spacer is sprayed on the required position of the glass substrate. Or, while moving, spread continuously in a line.

As an additional means, gas is supplied and dispersed in the spacer storage container while controlling the pressure and time. Alternatively, a fixed amount of adhesive is supplied, and a mixture of spacer and adhesive is discharged in a fixed amount.

The cylindrical cartridge 1 has minute holes 2 opened at a predetermined interval in the longitudinal direction of the wall surface, filled with a spacer 4 and sealed at both ends with caps 5 and 6. The dimension from the end face of the cartridge 1 to the reference minute hole 2 is accurately processed, and the alignment with the glass substrate 7 is facilitated. The microhole 2 is slightly larger than the diameter of the spacer 4 or has a diameter of several times to ten times, so that it cannot pass through the spacer 4 in a stationary state, and can pass by adding a required vibration with the vibrator 3. . The cap 5 is provided with a conduction port 9.

The spraying device 8 has a cartridge 1 detachably mounted thereon and a vibration exciter 3 that applies vibration to the cartridge 1 is installed. A supply device 10 for supplying gas or liquid to the conduction port 9 is installed.

Action

The micro hole 2 of the cartridge 1 is placed and moved so as to face the glass substrate 7 placed horizontally, and when it reaches the required position, vibration is applied by the vibrator 3 so that the spacer 4 is placed on the glass substrate 7. Fall down. Adjust the vibration condition of the vibration exciter 3 to adjust the amount of fall of the spacer 4. Since the spacers 4 are arranged in a spherical shape, the spacers 4 are dropped from the minute holes 2 without being entangled by adjusting the dimensions and vibration conditions of the minute holes 2.

The positions of the cartridges 1 are moved one after another, and the spacers 4 are sprayed on the required positions on the entire glass substrate 7. The cartridge 1 is continuously moved, and it is selected whether it is vibrated instantaneously at a required position and sprayed in a dot shape or continuously in a linear shape.

It is also possible to supply gas to the conduction port 9 by controlling the pressure and time from the supply device 10 to assist the falling of the spacer 4. Alternatively, an adhesive can be supplied to the conduction port 9 from the supply device 10, and the spacer 4 and the adhesive can be mixed and discharged in a fixed amount. When the minute hole 2 is opened in a slit shape, the opening area is increased, so that the discharge amount can be increased, and the control of the quantitative discharge of the liquid is facilitated.

The invention's effect

The spacer 4 can be spread only on the required position of the glass substrate 7. For example, it can be dispersed only in the black matrix portion, and image distortion can be prevented.

Since it can spray only to the partial location of the glass substrate 7, the spraying quantity of the spacer 2 can be decreased.

The spacer 4 is filled in the cartridge 1 and stored in a sealed state to prevent invasion of harmful substances until spraying. Spacer manufacturers can sell cartridges filled with spacers 4 and sealed.

The spraying device 8 for the spacer 4 only needs to be able to detachably mount the cartridge 1, and a complicated device is not necessary, and the setup change when the type of the spacer 4 is changed is simplified.
It is possible to spread the entire glass substrate 7 as in the conventional case.

The cartridge 1 can be collected after use, washed, dried, fully filled, and used repeatedly.

It is easy to enclose a dehumidifying material in the cartridge 1 to prevent the spacer 4 from moisture, and it is possible to prevent the spacer 4 from dropping due to humidification.

If the cartridge is provided with a large opening so that a plate having a minute hole can be detachably attached to the cartridge, it can be used for various glass substrates only by exchanging the plate.

Cross section of cartridge 1

Explanation of symbols

1: Cartridge 2: Micro hole 3: Vibrator 3 4: Spacer 5: Cap 7: Glass substrate

Claims (2)

A spacer storage container that has a small diameter hole or slit with a small width that does not easily allow a powdered spacer to pass through when it is stationary on the wall surface, is aligned with the position of the black matrix on the liquid crystal panel, and is sealed after filling the spacer. 2. A spacer distribution of a liquid crystal panel, wherein the spacer storage container of claim 1 is detachably mounted, and a vibration exciter for applying vibration and a gas or liquid quantitative supply device are installed in the storage container. apparatus.

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