JPH10197855A - Carrying tray for base plate provided with transparent electrode - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain the sticking of dust and a damage so as to prevent faulty patterning and to reduce the crack of a plate by forming a projecting part for regulating the rising of a base plate housed in a lower carrying tray on a part of a lower surface. SOLUTION: A transparent a electrode is formed on the upper surface 1a of the base plate 1. A housing part 4 housing the base plate 1 is formed on the upper surface of the respective carrying trays 3a and 3b and an aperture 5 is formed on the bottom part of the housing part 4. The peripheral part of the base plate 1 is supported by the outer periphery part of the bottom part of the housing part 4 and positioned by abutting on steps 4a and 4b. The projecting part 6 is provided at a part along in the lateral direction of the base plate 1 on the back surfaces of the trays 3a and 3b. The projecting part 6 abuts on the base plate 1 housed in the housing part 4 of the lower tray 3a of the stacked trays. The stacked trays 3a and 3b abut, so that the base plates 1 set in the respective housing parts 4 do not directly abut on each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport tray used when laminating and transporting substrates with transparent electrodes.

[0002]

2. Description of the Related Art In a substrate 1 with a transparent electrode used for manufacturing a liquid crystal display device, a transparent electrode is formed on an upper surface 1a in FIGS. Conventionally, when transporting the substrate 1 with a transparent electrode, the substrate 1 with a transparent electrode is stacked and transported with a spacer 2 interposed therebetween to prevent contact between the substrates during transportation.

[0003]

However, in such a conventional spacer 2, dust adheres or scratches occur at a portion where the spacer 2 and the upper surface 1a of the substrate 1 with a transparent electrode are in contact. If dust adheres or flaws are generated near the end surface of the substrate of the transparent electrode as described above, patterning failure occurs during patterning.

Further, since the substrates 1 are stacked via the spacers 2, all the loads of the substrate 1 and the spacers 2 stacked on the substrate 1 itself are applied.
There is a problem that cracks are easily generated.

It is an object of the present invention to provide a transport tray which can minimize the occurrence of dust and scratches on a transparent electrode during transport, can prevent patterning defects at the time of manufacture, and can realize transport with less cracking of a plate. And

[0006]

The transport tray of the present invention comprises:
On the upper surface, a storage portion for storing the transferred object and performing horizontal positioning is formed, and at least a portion of the lower surface is inserted into the storage portion of the stacked lower transfer tray and the lower portion is inserted. It is characterized in that a projection is formed to regulate the lifting of the transported object stored in the transport tray.

According to the present invention, the occurrence of dust and scratches on the transparent electrode during transportation is reduced, patterning defects during manufacture can be prevented, and transport with less plate cracks can be realized.

[0008]

A transfer tray for a substrate with a transparent electrode according to claim 1 is a transfer tray used for transferring a substrate for a liquid crystal display panel provided with a transparent electrode, and a transfer object is provided on the upper surface. A storage part for storing and performing horizontal positioning is formed, and at least a part of the lower surface is inserted into the storage part of the stacked lower transfer tray and stored in the lower transfer tray. It is characterized in that a protruding portion for regulating the lifting of the transported object is formed.

According to this configuration, the substrate is stored in the storage section of each transport tray, and a large load does not act regardless of the stacking height. Also, the positioning in the horizontal and vertical directions restricts the movement in the storage section.

According to a second aspect of the present invention, in the transport tray for a substrate with a transparent electrode according to the first aspect, the bottom of the storage portion is opened, and the outer peripheral portion of the bottom of the storage portion supports the peripheral portion of the transferred object. It is characterized by comprising.

According to this structure, the outer surface of the bottom of the storage portion of the transport tray stacked above does not contact the transparent electrode of the substrate, and only the protrusion of the transport tray stacked above contacts the transparent electrode. I do.

An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows one substrate 1 with a transparent electrode.
And a first transport tray 3a on which the substrate 1 with a transparent electrode is set, and a second transport tray 3b stacked on the first transport tray 3a. In this example, a transparent electrode is formed on the upper surface 1a of the substrate 1.

On the upper surface of each of the transport trays 3a and 3b, a storage section 4 for storing the substrate 1 to be transferred is formed, and an opening 5 is formed at the bottom of the storage section 4. The size of the storage portion 4 is slightly larger than the size of the substrate 1, and the substrate 1 set inside the storage portion 4 as shown in FIGS. The peripheral portion of the transported object is supported by the transport tray 3a at the outer peripheral portion at the bottom of the portion 4, and is positioned in contact with the steps 4a and 4b so that movement in the horizontal direction is restricted.

As shown in FIGS. 2 and 3B, a projection 6 is provided on the back surface of each of the transport trays 3a and 3b at a portion along the lateral direction of the set substrate 1. ing. As shown in FIG. 3B, the projection 6 is inserted into the storage section 4 of the stacked lower transport tray 3b and is in contact with the substrate 1 stored in the lower transport tray 3b.

The transport trays 3 stacked as described above
a comes into contact with the transport tray 3b, and each of the transport trays 3a, 3
Since the substrates 1 and 1 set in the accommodating portion 4b do not directly contact each other, a load corresponding to the stacking height does not act on the substrate 1 and the substrate 1 during transportation is not applied.
Can be avoided.

The transport trays 3 stacked on top of each other
Since only the protrusion 6 of the substrate 1 is in contact with the transparent electrode of the substrate 1, the occurrence of dust and scratches on the transparent electrode of the substrate 1 during transportation is small, and patterning defects at the time of manufacturing can be prevented. Patterning can be performed up to the full width.

The projection 6 provided in the longitudinal direction of the glass substrate
Is formed at 50 to 80% of the length of the long side of the substrate 1, and there is a section 7 where the protrusion 6 is not formed between the adjacent protrusions 6. .

When the user arrives at the target position in the state shown in FIGS. 3A and 3B, the stacked transport trays 3 are inverted, and the suction pads (not shown) are placed on the uppermost transport tray 3 as shown in FIG. The section 7 is sucked and handled.

Therefore, when the length of the protrusion 6 is larger than 80% of the length of the long side of the substrate 1, the portion to be sucked by the suction pad becomes small, and reliable handling cannot be expected. If it is smaller than 50%, it is difficult to reliably control the lifting of the substrate 1 during transfer.

Incidentally, to give a specific example of the dimensions of the above embodiment, the size of the substrate 1 is 300 × 400 mm, the thickness of the substrate 1 is 0.7 mm, the depth of the storage section 4 is 2 mm, The protrusion length of No. 6 was 1 mm.

Specific materials used for the transport tray 3 include polyethylene, polypropylene, phenol resin,
ABS, FRP, etc. can be used.

[0022]

As described above, according to the present invention, a storage portion for storing a transferred object and performing horizontal positioning is formed on the upper surface, and the stacked lower portion is formed on at least a part of the lower surface. A projection is formed in the storage section of the transfer tray to restrict the lifting of the transferred object stored in the lower transfer tray, thereby preventing dust adhesion and scratching to prevent patterning failure and transport. Cracks inside can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a transport tray according to an embodiment of the present invention, a substrate as an object to be transported, and a transport tray overlaid thereon.

FIG. 2 is a perspective view of FIG. 1 viewed from below.

FIG. 3 is a cross-sectional view of a case where the transfer trays according to the embodiment are stacked to transfer a substrate as an object to be transferred;

FIG. 4 is a cross-sectional view showing a conventional transport state.

FIG. 5 is a perspective view illustrating a conventional transport state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 3a, 3b Transport tray 4 Storage part 4a, 4b Step 5 Opening 6 Projection 7 Section in which projection 6 is not formed

Claims (2)

[Claims] 1. A transport tray for transporting a substrate for a liquid crystal display panel provided with a transparent electrode, wherein a storage portion for storing an object to be transported and positioning in a horizontal direction is formed on an upper surface, and a lower surface. At least a portion of the substrate with a transparent electrode formed with a protrusion that is inserted into the storage portion of the stacked lower transfer tray and regulates the lifting of the transferred object stored in the lower transfer tray. Transport tray. 2. The transfer tray for a substrate with a transparent electrode according to claim 1, wherein the bottom of the storage portion is opened, and the outer peripheral portion of the bottom of the storage portion supports the peripheral portion of the transferred object.