JP2005221769A - Plate housing tray - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate housing tray which can house a liquid crystal panel of a large diameter in a stable state without bending, which can respond to liquid crystal panels of various sizes, and which takes sufficient countermeasure against electrostatic to reliably protect circuits. <P>SOLUTION: In the plate housing tray 1 comprising a conductive material such as a metal and having a plate housing plane to house a liquid crystal panel 8, the upper face of the plate housing plane is provided with an antislip member 9 comprising a conductive synthetic rubber to prevent horizontal shift of the liquid crystal panel by frictional force. A plurality of plate supporting members to support a liquid crystal panel are disposed in accordance with various widths or diameters of liquid crystal panels to be mounted. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a plate storage tray used for storing and transporting a liquid crystal panel during and between production processes of the liquid crystal panel, and in particular, can accommodate and accommodate various sizes of liquid crystal panels. The present invention relates to a plate storage tray that takes into account countermeasures against static electricity, which is a problem.

Conventionally, in order to store and transport glass liquid crystal panels in the production process of liquid crystal displays, it has been equipped with grooves, steps, shelves, etc. that hold the outer periphery of the liquid crystal panel, and efficiently stores multiple liquid crystal panels. A liquid crystal panel transport container having a rack structure to be transported and a tray made of synthetic resin are used.
JP-A-8-324684

However, in recent years, liquid crystal displays have become larger and thinner, and the size of the liquid crystal panel has become extremely large and easily bent, with a height of 1 meter or more and a thickness of 1 millimeter or less. Therefore, in a conventional liquid crystal panel transport container having a rack structure that holds the outer peripheral edge of the liquid crystal panel, the stored liquid crystal panel may bend or swing, which may cause damage or trouble in operation. there were. In addition, since the rack-structured liquid crystal panel transport container holds the outer peripheral edge of the liquid crystal panel, if the size of the liquid crystal panel to be stored changes, a new transport container corresponding to the size must be manufactured. It was. The tray made of synthetic resin has a structure in which the outer peripheral edge of the liquid crystal panel is hooked by a stopper, and in addition to being forced to change the size of the tray for each size of the liquid crystal panel, it has a large diameter. Maintaining the flatness of the tray so as not to bend the liquid crystal panel is extremely difficult in terms of resin molding. Furthermore, liquid crystal panels in the manufacturing process are usually charged using a conductive resin with conductive paint or surfactant added to the tray so that the circuits formed there are not damaged by static electricity. However, in the conventional antistatic technology, the resistance value of the resin surface is several Ω to 10 ⁶ Ω, and the liquid crystal panel charged with high voltage comes into contact with the tray and the static electricity is grounded. In this case, spark discharge may occur between the liquid crystal panel or its circuit and the conductive tray. When a discharge occurs in the circuit of the liquid crystal panel, the circuit will burn out. Furthermore, the above-described antistatic effect is dependent on humidity, and the surface resistance value increases with time, so that the predetermined surface resistance value cannot be maintained stably for a long period of time.

  Therefore, in the present invention, in order to solve these problems, a large-diameter liquid crystal panel can be stored in a stable state without being bent, and can correspond to liquid crystal panels of various sizes. It is an object of the present invention to provide a plate container that can sufficiently protect a circuit with sufficient consideration for static electricity countermeasures.

  In order to achieve the above object, the plate body storage tray of the present invention is configured such that the plate body storage surface of a plate body storage body such as a liquid crystal panel made of a conductive material such as metal has static electricity charged on the plate body to be stored. The plate body supporting member to be gradually neutralized is arranged according to the size of the plate body to be accommodated.

Further, the plate support member is formed by adding and copolymerizing a hydrophilic polymer antistatic agent such as polyether or ether amide so as to maintain a surface resistance value exceeding 10 ⁸ Ω and not more than 10 ¹² Ω. It is formed from an antistatic synthetic resin material.

  The plate support member is characterized in that an anti-slip member made of a conductive rubber material that prevents horizontal movement of the plate to be stored is attached to the upper surface.

  Further, the plate body storage body is composed of an outer frame and a frame body that is provided with a plate body support member that is connected with an interval between opposite sides of the outer frame, and is provided with a space in the vertical direction on the plate body storage surface. A portion is formed.

  According to the plate body storage tray of the present invention, the plate body storage surface of the plate body storage body such as a liquid crystal panel made of a conductive material such as metal is a plate that gradually neutralizes static electricity charged in the stored plate body. By disposing the body support member according to the size of the plate body to be accommodated, it is possible to suitably neutralize the plate body such as a liquid crystal panel charged by static electricity.

Further, the plate support member is formed by adding and copolymerizing a hydrophilic polymer antistatic agent such as polyether or ether amide so as to maintain a surface resistance value exceeding 10 ⁸ Ω and not more than 10 ¹² Ω. By being formed from an antistatic synthetic resin material, when a plate body such as a liquid crystal panel charged by static electricity is placed and stored on a plate body support member, it can be suitably neutralized without causing a spark discharge. It becomes possible.

  In addition, the plate body support member is formed by attaching a non-slip member made of a conductive rubber material that prevents the horizontal movement of the plate body to be stored on the upper surface, so that the plate body of various sizes can be provided without a stopper member. Correspondingly, it can be stored suitably.

  Further, the plate body storage body is composed of an outer frame and a frame body that is provided with a plate body support member that is connected with an interval between opposite sides of the outer frame, and is provided with a space in the vertical direction on the plate body storage surface. By forming the portion, the tray is reduced in weight, and even if dust is generated in the plate body storage tray, the tray can be dropped from the gap without being stored in the tray, and a clean state can be maintained.

  1 to 2 show a plate body storage tray 1 according to the present invention. The plate body storage tray 1 is made of a conductive structure such as a metal angle material (channel material) having a U-shaped cross section on all sides. The outer frame 2 and the four housings 3 constituting the plate body storage surface of the liquid crystal panel to be stored are made of a metal cross-sectional L-shaped angle member that connects the opposing sides of the outer frame 2 with an interval. A plurality of (12 in this embodiment) plate support members 4 made of synthetic resin and arranged on the upper surface of the inner casing 3, and the upper surface of the outer casing 3. A support plate 5 for supporting the circuit portion of the liquid crystal panel disposed, a corner member 6 for stacking trays disposed at the four corners of the upper surface of the outer frame 2, and a handle disposed at an appropriate interval on the upper surface of the outer frame 2 It is comprised from the member 7. FIG.

  The plate body storage tray 1 is composed of an outer frame 2 and a housing 3, and a space portion is provided between the outer frame and the housing in the vertical direction so as not to be blocked by the bottom plate. Even if dust is generated, it can be dropped from the gap without being stored in the tray 1 to keep a clean state.

The plate support member 4 shown in FIG. 3, a polypropylene, a hydrophilic polymer antistatic agent copolymerized synthetic resin material such as polyether or polyether amide those obtained by injection molding, the 10 ⁸ Omega It has a feature that the surface resistance value exceeding 10 ¹² Ω is maintained without humidity dependency and change with time. An anti-slip member 9 made of low-resistance conductive synthetic rubber such as conductive silicon rubber is disposed on the upper surface, and horizontal movement of the liquid crystal panel 8 to be placed is suppressed only by the frictional force. Therefore, a position regulating member such as a stopper is unnecessary. Further, by disposing twelve support bodies 4 on the inner casing 3, a liquid crystal panel of any size can be used as long as it has a width diameter that can be accommodated in the outer frame 2 and is equal to or larger than the interval between the plate support members 4. It can be stably supported by the plate support member 4. The versatility of the storage size is that the outer peripheral edge of the plate body is not restricted by the stopper member, but the movement of the plate body in the horizontal direction is prevented only by the frictional force by the anti-slip member 9 of the plate body support member 4. It is possible.

The plate body support member 4 has a surface resistance value of more than 10 ⁸ Ω and not more than 10 ¹² Ω, a value of several Ω to several tens of Ω in conductive coating, and several tens of Ω of conductive resin kneaded with carbon filler. Although it is high compared with 10 ⁶ Ω, it is sufficiently low compared with 10 ¹⁵ Ω to 10 ¹⁷ Ω of a general resin such as polypropylene or polyethylene as an insulator, that is, the resistance value of the semiconductor region close to the insulating region. In the case of a surface resistance value in the range, even if the liquid crystal panel charged with high voltage static electricity contacts the plate support member 4 (via a non-slip member 9 of a good conductor), the high voltage static electricity is caused by spark discharge. Without being instantaneously flowing to the tray, the current is gradually discharged through the plate support member 4 to the outer frame 2 made of a metal structure over a period of several microseconds to several hundred milliseconds. is there.

A plurality of support plates 5 arranged on the upper surface of the outer casing 3 at appropriate intervals support circuit parts such as TCPs arranged on the outer periphery of the liquid crystal panel. It is held safely without sagging downwards. The support plate 5 is also of polypropylene in the same manner as the plate member supporting member 4 described above, the hydrophilic polymer antistatic agent copolymerized synthetic resin material such as polyether or polyether amide injection molding, the 10 ⁸ Omega It has a feature that the surface resistance value exceeding 10 ¹² Ω is maintained without humidity dependency and change with time. Further, even when the plate support member 4 is omitted and the anti-slip member 9 as the plate support member is directly disposed on the support plate 5, the anti-slip effect and static electricity are gradually eliminated. Both effects are the same as described above, and the number of parts can be reduced.

  In the embodiment described above, the liquid crystal panel has been described as being stored in the plate body storage tray 1. However, the present invention is not limited to this, and an appropriate plate body other than the liquid crystal panel may be used. It ’s good.

It is a perspective view which shows the plate body storage tray of this invention. It is a top view which shows the plate body storage tray of this invention. It is explanatory drawing of the board support member in the board storage tray of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate body storage tray 2 Outer frame 3 Frame 4 Plate body support member 5 Support plate 6 Corner member 7 Handle member 8 Liquid crystal panel 9 Non-slip member

Claims (4)

  The plate body storage surface of a plate body storage body such as a liquid crystal panel made of a conductive material such as metal has a size of a plate body that stores a plate body support member that gradually eliminates static electricity charged in the stored plate body. A plate storage tray characterized by being arranged accordingly. The plate support member is formed by adding a hydrophilic polymer antistatic agent such as polyether or etheramide and copolymerizing it to maintain a surface resistance value exceeding 10 ⁸ Ω and 10 ¹² Ω or less. 2. The plate body storage tray according to claim 1, wherein the plate body storage tray is formed of a synthetic resin material.   2. The plate body storage tray according to claim 1, wherein the plate body support member is provided with an anti-slip member made of a conductive rubber material for preventing movement of the plate body to be stored in the horizontal direction on the upper surface.   The plate body storage body is composed of an outer frame and a casing having a plate body support member that is connected to each other at intervals between opposite sides of the outer frame, and the plate body storage surface has a space portion in the vertical direction. The plate body storage tray according to claim 1, wherein the plate body storage tray is formed.

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