JP4660008B2 - Liquid crystal cell multiple substrate - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a liquid crystal cell multiple substrate that includes a plurality of liquid crystal cells that have been injected and in which liquid crystals are simultaneously injected into each liquid crystal cell in a liquid crystal injection step.
[0002]
[Prior art]
In many cases, from the viewpoint of productivity, the liquid crystal display panel is multifaceted on a mother substrate, and liquid crystal cell multiple substrates (stick substrates) are cut out from the mother substrate in units of one column or one row. Then, the liquid crystal cells are transported to the liquid crystal injection process in the state of the liquid crystal cell multi-substrate, and after the liquid crystal is injected into each liquid crystal cell, the individual liquid crystal surface cells are cut out from the liquid crystal cell multi-substrate. Is done.
[0003]
As an example, FIG. 3A shows a front view of the liquid crystal cell multiple substrate 10 cut out from the mother substrate, and FIG. 3B shows a bottom view thereof. The liquid crystal cell multiple substrate 10 includes a plurality of liquid crystal cells 11 formed of a mother substrate (not shown) in a row.
[0004]
At the time of cutting out from the mother substrate, the injection of each liquid crystal cell 11 is performed. In this example, the inlet 11 a of each liquid crystal cell 11 is aligned on the lower side 10 a side of the liquid crystal cell multiple substrate 10.
[0005]
In the left and right margins 10c of the liquid crystal cell multi-substrate 10, cut marks M are provided which serve as a reference when the liquid crystal cells 11 are cut out from the liquid crystal cell multi-substrate 10 after the liquid crystal is injected.
[0006]
Usually, the cutting mark M is formed of a transparent electrode material (for example, ITO) on the inner surface side of one of the strip-shaped substrates 12 and 13. That is, the cut mark M is formed simultaneously with patterning the transparent electrode on each liquid crystal cell 11.
[0007]
The size of the cutting mark M is about 0.5 mm square, and is imaged by a CCD camera of an automatic cell cutting device. The automatic cell cutting device positions the liquid crystal cell multiple substrate 10 with respect to the cutting mark M, and then each liquid crystal. The cell 11 is disconnected.
[0008]
[Problems to be solved by the invention]
In the margin portion 10c of the liquid crystal cell multiple substrate 10, the cut mark M is arranged on the upper side 10b side. However, since the gap between the substrates 12 and 13 is narrow, the liquid crystal is introduced into the margin portion 10c by capillary action when liquid crystal is injected. May crawl up and adhere to the cutting mark M.
[0009]
FIG. 4 shows a state in which the liquid crystal L is attached to the cutting mark M. The cutting mark M is made of a transparent electrode material. If the liquid crystal L adheres in addition to being difficult to read, the cutting mark M cannot be accurately imaged by the CCD camera, and cutting trouble occurs due to poor positioning.
[0010]
The present invention has been made in order to solve such a problem. The object of the present invention is to provide a liquid crystal cell with a cut mark even if the liquid crystal crawls up in a blank portion where the cut mark of the liquid crystal cell multi-layer substrate is formed. An object of the present invention is to provide a liquid crystal cell multi-layer substrate that does not reach the above level.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a plurality of liquid crystal cells arranged in a line on the lower side of the substrate are arranged in a line between a pair of strip substrates, and any one of the strip substrates is disposed. In a liquid crystal cell multiple substrate in which a cut mark for cutting out a liquid crystal cell made of a transparent electrode material is formed on the inner surface of one blank part, a seal extending between the strip-shaped substrate and surrounding the cut mark in the lower side direction of the substrate An enclosure frame made of a material is provided, the inside of the enclosure frame is partitioned into multiple stages by a partition having a communication hole, and a communication hole communicating with the atmosphere is also provided in the lowermost partition.
[0012]
This enclosing frame is applied to one substrate side like the peripheral sealing material constituting each liquid crystal cell, and is crimped between the other substrate, but the inside communicates with the atmosphere through the communication hole, There is no puncture when crimping.
[0013]
It is preferable that the communication holes are arranged on the same straight line so that air in the surrounding frame can be easily released during the pressure bonding. Even if the liquid crystal enters the surrounding frame from the communication hole, the inside of the surrounding frame is divided into multiple stages, so that the cutting mark is not easily reached.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view of a liquid crystal cell multiple substrate according to this embodiment, and FIG. 2 is an enlarged view of a main part thereof. Note that the same reference numerals are used for components that may be regarded as the same as or the same as those of the conventional example of FIG. 3 described above, and the description thereof is omitted.
[0015]
Also in this liquid crystal cell multiple substrate 10 ′, the cutting marks M are formed on the inner surface side of the blank portions 10c at both ends, but around the cutting marks M, a sealing material for preventing the adhesion of liquid crystal is used. An enclosing frame 20 is provided.
[0016]
In this embodiment, the surrounding frame 20 has a vertically long rectangular shape, the inside thereof is divided into five stages by four partitions 21, and the cutting mark M is arranged in the uppermost section 20 a.
[0017]
Each partition 21 is formed with a communication hole 22 so that the sections 20a to 20e communicate with each other. A communication hole 22 is also formed on the bottom side of the surrounding frame 20 forming the lowermost compartment 20e. Therefore, all the compartments 20a to 20e communicate with the atmosphere.
[0018]
The surrounding frame 20 is made of, for example, an epoxy-based thermosetting resin like the peripheral sealing material of the liquid crystal cell 11 and is applied to the inner surface of one substrate and then sandwiched between the other substrate. Since the hole 22 communicates with the atmosphere, the air is confined inside and does not puncture. In order to make air easy to escape, in this embodiment, each communication hole 22 is arranged on a straight line.
[0019]
Since there is the surrounding frame 20, the cut mark M is protected from the liquid crystal that crawls into the blank portion 10c when the liquid crystal is injected. Even if the liquid crystal enters the enclosure frame 20 from the communication hole 22, the enclosure frame 20 is divided into multiple stages, so there is almost no risk that the liquid crystal will enter the uppermost compartment 20a.
[0020]
Therefore, in the cell cutting step after the liquid crystal injection step, the cutting mark M can be clearly imaged by the CCD camera of the automatic cell cutting device, and the liquid crystal cell multiple substrate 10 ′ can be accurately positioned.
[0021]
In the present invention, the shape of the surrounding frame 20 can be deformed into, for example, an ellipse or a bowl. It is also arbitrary how many stages the enclosure frame 20 is partitioned. Further, the position of the communication hole 22 may be changed for each partition 21.
[0022]
In the above embodiment, the liquid crystal cell multiple substrate is described as being cut out from the mother substrate. However, the present invention also applies to a substrate that is configured as a liquid crystal cell multiple substrate from the beginning without going through the mother substrate manufacturing process. Needless to say, is applicable.
[0023]
【The invention's effect】
As described above, according to the present invention, in a liquid crystal cell multiple substrate including a plurality of liquid crystal cells arranged in a line and forming cut marks for cutting out liquid crystal cells in the margins at both ends, By forming an enclosing frame that surrounds the cutting mark with a material, and dividing the inside of the enclosing frame into multiple stages by a partition having a communicating hole, and providing a communicating hole communicating with the atmosphere in the lowermost section, the cutting mark It is possible to form the surrounding frame for preventing the liquid crystal from adhering to the film without puncturing.
[Brief description of the drawings]
FIG. 1 is a front view showing a liquid crystal cell multiple substrate according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a main part of the present invention.
FIGS. 3A and 3B are a front view and a bottom view showing a liquid crystal cell multiple substrate as a conventional example. FIGS.
FIG. 4 is an explanatory diagram for explaining a problem of the conventional example.
[Explanation of symbols]
10 'liquid crystal cell multiple substrate 10a lower side 10b of liquid crystal cell multiple substrate upper side 10c of liquid crystal cell multiple substrate margin 11 of liquid crystal cell multiple substrate liquid crystal cell 11a inlet 12, 13 strip substrate 20 surrounding frames 20a-20e partition 21 Partition 22 Communication hole M Cutting mark for cutting out liquid crystal cell

Claims (2)

Between the pair of band-shaped substrates, a plurality of liquid crystal cells, which are aligned in the direction of the lower side of the same substrate, are arranged in a row, and are formed of a transparent electrode material on the inner surface of one of the band-shaped substrates. In the liquid crystal cell multiple substrate in which the cutting marks for cutting out the liquid crystal cells are formed,
Between the strip-shaped substrates, there is an enclosing frame made of a sealing material that surrounds the cutting mark and extends in the lower side direction of the substrate, the inside of the enclosing frame is partitioned in multiple stages by a partition having a communication hole, and the lowermost part The liquid crystal cell multi-substrate is characterized in that a communication hole communicating with the atmosphere is also provided in the compartment. The liquid crystal cell multiple substrate according to claim 1, wherein the communication holes are arranged on the same straight line.

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