JP2008146078A - Liquid crystal tray and liquid crystal injecting method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid crystal tray and a liquid crystal injecting method for reducing the consumption of liquid crystal material. <P>SOLUTION: The liquid crystal tray for injecting liquid crystal material into a panel is disclosed and the liquid crystal tray is characterized in that the liquid crystal tray includes a main body which has a loading surface and four side faces, the loading surface being a complete plane adjacent to the side faces. Further, the liquid crystal injecting method of injecting the liquid crystal material is characterized in that the method includes the steps of: providing the liquid crystal tray and a panel each including the loading surface which is the complete plane; loading the liquid crystal material on the loading surface; and injecting the liquid crystal material into the panel from the liquid crystal tray, in contact with an edge of the panel having the loading surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a liquid crystal tray, and more particularly to a liquid crystal tray that reduces the amount of liquid crystal material used.

  FIG. 1 a represents a conventional liquid crystal tray 1 and includes a body having a groove 11 and a recess 12. FIG. 1 b is a cross-sectional view along line II in FIG. 1 a, where the recess 12 is formed with the edge 13. As shown in FIG. 1 c, when the liquid crystal material is injected, first, the liquid crystal material 14 is placed in the recess 12. Subsequently, as shown in FIG. 1d, the panel 2 contacts the edge 13, and the liquid crystal material 14 is injected into the panel 2 from the recess 12 by capillary action.

  In conventional liquid crystal injection methods, the recess 12 contains much more liquid crystal material than the amount injected into the panel 2. Therefore, the liquid crystal material remains in the recess 12 after the injection. Since the remaining liquid crystal material is usually reused, it deteriorates with repeated liquid crystal injection.

  Further, as shown in FIG. 1 d, when the panel 2 comes into contact with the liquid crystal material 14 due to the relatively low surface tension of the liquid crystal material 14 placed in the recess 12, the liquid crystal material 14 enters the groove 11. Overflowing.

  As described above, the conventional liquid crystal tray is usually provided with a recess capable of accommodating a liquid crystal material sufficient for filling the panel.

JP-A-4-258925 JP-A-5-333354 JP 2002-244142 A Korean Patent Application Publication No. 200200440995 Korean Patent Application Publication No. 20020044294

  A liquid crystal tray capable of reducing the amount of liquid crystal material used is provided.

  The present invention provides a liquid crystal tray for injecting a liquid crystal material into a panel, including a stacking surface and four side surfaces, and the stacking surface includes a main body that is a complete plane adjacent to the side surface. In the liquid crystal tray of the present invention, when the liquid crystal material is injected, the liquid crystal material is placed on the stacking surface, and the edge of the panel is in contact with the stacking surface. In the prior art, the concave portion was formed so that the loading surface of the liquid crystal tray was not in direct contact with the edge of the panel, but the present invention reduces the loading amount of the liquid crystal because the loading surface is a flat surface without a groove. Can be made.

  In addition, the present invention includes a liquid crystal tray used for a liquid crystal injection facility, including a main body including a loading surface that is a complete plane, and a joint portion that is installed on the bottom surface of the main body and is bonded to the liquid crystal injection facility. . Such a joint portion is mainly combined with the liquid crystal injection device so that the liquid crystal port corresponds to the liquid crystal tray.

  In the liquid crystal tray of the present invention, the joining portion is smaller than the main body and includes two sandwiching areas formed on both sides thereof. This is for fixing the liquid crystal tray to the liquid crystal injection device.

  The main body of the liquid crystal tray of the present invention has a convex cross section or a structure having a step at one end of the side surface, and includes a loading surface that is a complete flat surface. The main body is placed on a loading surface, and an edge of the panel is in contact with the loading surface. By adopting a convex cross section, it is possible to prevent excess liquid crystal from overflowing when the amount of liquid crystal to be loaded on the liquid crystal tray exceeds the amount that can be loaded. Further, by having a stepped structure at one end of the side surface, liquid crystal can be mounted on the stepped portion, and it is possible to prevent the amount of liquid crystal for injection from being insufficient due to overflow of the liquid crystal in the planar portion. it can.

  According to the liquid crystal tray of the present invention, it is possible to reduce the amount of liquid crystal material used, and as a result, the effect of preventing leakage and deterioration of the liquid crystal material can be derived.

  A liquid crystal injection method according to another aspect of the present invention includes the following steps. First, providing a liquid crystal tray and a panel including a loading surface that is a complete plane, placing the liquid crystal material on the loading surface, and contacting an edge of the panel having the loading surface, the liquid crystal material Is injected into the panel from the liquid crystal tray. Since the conventional liquid crystal tray has a recess, reuse of the liquid crystal material remaining in the recess may lead to deterioration of the product. According to the present invention, since the loading surface is flat, it is possible to inject liquid crystal material efficiently, thus reducing the number of times the liquid crystal material in the liquid crystal tray is replaced and saving the amount of liquid crystal material. As a result, the reliability of the product can be improved. With this step, the purpose of injecting liquid crystal can be achieved with the most economical amount of liquid crystal used. Moreover, after adding a liquid crystal to a liquid crystal tray, it is not wash | cleaned for every production of 1 cycle, A small amount of liquid crystal is added after each cycle, and the injection | pouring process of the following product can be repeated continuously.

  Furthermore, the liquid crystal injection method according to the present invention includes a step of providing a liquid crystal tray and a chamber that are installed in a chamber and including a completely flat loading surface, a step of lowering the pressure in the chamber, a step of providing a liquid crystal material, and the liquid crystal material A step of providing a panel, an edge of the panel having the loading surface is in contact with the loading surface, and the liquid crystal material is injected into the panel from the liquid crystal tray; and Increasing the pressure in the chamber to normal pressure. By adjusting the pressure in the chamber, the liquid crystal can be effectively injected using the difference between the internal pressure and the external pressure of the panel.

  The present invention also relates to a liquid crystal injection method in which the ratio between the amount of the liquid crystal material placed on the stacking surface and the amount of liquid crystal material injected into the panel is 3: 1 to 5: 1. . In such a ratio, the amount of liquid crystal used is the most economical.

  According to the liquid crystal tray and the liquid crystal injection method of the present invention, it is possible to prevent the liquid crystal material from leaking, reduce the amount of the liquid crystal material used, and prevent the liquid crystal material from deteriorating.

  In order that the objects, features, and advantages of the present invention will be more clearly understood, embodiments will be described below in detail with reference to the drawings.

  FIG. 2 a shows Example 1 of the liquid crystal tray 100 including the main body 101. The main body 101 includes a first side surface 110, a second side surface 120, a third side surface 130, a fourth side surface 140, a stacking surface 150, and a bottom surface 160. The loading surface 150 faces the bottom surface 160. The first side surface 110, the second side surface 120, the third side surface 130, and the fourth side surface 140 are adjacent to the stacking surface 150 and the bottom surface 160.

  2b is a cross-sectional view along the line II-II in FIG. 2a. When liquid crystal is injected, first, the liquid crystal material 14 is placed on the loading surface 150. In the embodiments and claims of the present invention, the loading surface is defined as “the entire surface that contacts the liquid crystal material when it is loaded”. That is, the loading surface is the entire surface that contacts the liquid crystal material before the panel contacts the liquid crystal tray. The loading surface 150 is completely flat. In the examples and claims of the present invention, a perfect plane is defined as "a plane without grooves, recesses or protrusions". Since the loading surface 150 is a perfect plane, the liquid crystal material 14 having a low surface tension can be sufficiently prevented from leaking. Further, since the loading surface 150 has no recess, the amount of liquid crystal material used can be reduced.

  As shown in FIG. 2c, after the panel 2 contacts the stacking surface 150 of the liquid crystal tray 100, the liquid crystal material 14 is injected into the panel 2 by capillary action.

  Conventionally, the edge of the panel 2 where the liquid crystal material is injected has been considered to be a perfect plane. Therefore, when the stacking surface 150 is a perfect plane, as shown in FIG. Since the edge of the panel 2 is in intimate contact with the loading surface 150 when placed on the liquid crystal tray, the liquid crystal material 14 is pushed out of the loading surface 150, so that sufficient liquid crystal material is injected into the panel 2. It was thought that it would not be done. However, as shown in FIG. 3b in which the portion A of FIG. 2c is enlarged, in practice, the surface of the edge of the panel 2 is not a perfect plane, but is uneven due to uneven cutting. Also, as shown in FIG. 3c, due to inaccurate cutting, the edge of the panel 2 is not completely perpendicular to its main surface (ie, the entrance surface and the exit surface), and the edges of the loading surface 150 and the panel 2 are When contacting, a depression angle is formed between them. Therefore, when the liquid crystal is injected, the edge of the panel 2 does not come into close contact with the loading surface 150, and there is a space between the loading surface 150 and the edge of the panel 2. Accommodates an amount of liquid crystal material.

  The liquid crystal tray according to the present invention reduces the amount of liquid crystal material used. Table 1 shows the amount of liquid crystal material contained in the liquid crystal tray of the present invention and the conventional liquid crystal tray corresponding to various sizes of panels.

  As shown in Table 1, the liquid crystal tray based on Example 1 of the present invention has the effect of reducing the amount of liquid crystal material used, and as a result prevents deterioration of the liquid crystal material.

  FIG. 4 shows a liquid crystal tray 100 ′ according to the second embodiment of the present invention, which includes a notch portion 102 that guides leaked liquid crystal material. In the second embodiment, the cross-sectional view of the main body 101 'has a convex shape. In Example 2, the loading surface 150 (the entire surface that contacts the liquid crystal material before the panel contacts the liquid crystal tray) is a perfect plane.

  FIG. 5 shows a liquid crystal tray 100 ″ according to a third embodiment of the present invention, which includes a notch portion 103 that guides leaked liquid crystal material. In the third embodiment, the cross-sectional view of the main body 101 ″ is one end of the side surface. Have a stepped structure (ladder shape). In Example 3, the loading surface 150 (the entire surface that contacts the liquid crystal material before the panel contacts the liquid crystal tray) is a perfect plane.

  FIG. 6 shows a liquid crystal tray 200 according to the fourth embodiment of the present invention, and further includes a joint 210 formed on the bottom surface of the main body 101 ′. The junction 210 is for connection to a liquid crystal injection facility, and is connected by two sandwiching areas formed on both sides thereof. The junction part 210 can be installed in Examples 1-4 of a liquid crystal tray.

  FIG. 7 shows various liquid crystal trays bonded to the liquid crystal injection equipment. In the figure, the liquid crystal tray 200 of Example 4 which is the liquid crystal tray of this invention is represented. The liquid crystal tray 200 is fixed on the positioning block 310.

  FIG. 8 is a flowchart of a liquid crystal injection process according to the present invention. In Example 1, the liquid crystal injection process is performed in a chamber. First, the pressure in the chamber is lowered (S1). Next, the panel contacts the liquid crystal material on the liquid crystal tray, and the liquid crystal material is injected into the panel (S2). Finally, the pressure in the chamber is raised and liquid crystal injection is completed (S3).

  9a and 9b show the liquid crystal tray 200 of the present invention on which the liquid crystal material 14 is loaded, and the liquid crystal trays 200 of FIGS. 9a and 9b have the same size and the same shape. As shown in FIG. 9a, since the loading surface of the liquid crystal tray 200 is smooth, the amount of the liquid crystal material 14 that can be loaded by the conventional concave liquid crystal tray is larger. However, in the concave liquid crystal tray, the loading surface and the panel do not come into contact with each other, so that the liquid crystal material loaded on the liquid crystal tray requires 10 times or more the liquid crystal material injected into the panel. On the other hand, in the case of the liquid crystal tray 200 according to the present invention, since the stacking surface and the panel are in contact with each other, the ratio between the amount of liquid crystal material placed on the stacking surface and the amount of liquid crystal material injected into the panel is 3 : 1 to 5: 1 is sufficient. In practice, since the amount of liquid crystal material added to the liquid crystal tray is determined by the size and number of panels, the above ratio does not necessarily limit the amount.

  The preferred embodiments of the present invention have been described above, but this does not limit the present invention, and a few changes and modifications that can be made by those skilled in the art without departing from the spirit and scope of the present invention. It is possible to add. Accordingly, the scope of the protection claimed by the present invention is based on the scope of the claims.

2 shows a conventional liquid crystal tray. 1 b is a cross-sectional view taken along line II of FIG. It represents a liquid crystal material placed on a conventional liquid crystal tray. It represents the liquid crystal material injected into the panel. 2 shows a liquid crystal tray based on Example 1 of the present invention. The liquid crystal material placed on the liquid crystal tray of Example 1 of the present invention is represented by a cross-sectional view taken along line II-II in FIG. 2a. 3 shows a liquid crystal material injected into the panel of Example 1 of the present invention. Represents incorrect qualification of conventional design mode. It is an enlarged view of the part A of FIG. It is a side view of the panel which is contacting the liquid crystal tray. Fig. 4 shows Example 2 of the present invention. Example 3 of the present invention is shown. Fig. 4 shows Embodiment 4 of the present invention. 2 shows a liquid crystal tray of the present invention joined to a liquid crystal injection facility. It is a flowchart of the liquid crystal injection of this invention. 2 shows a liquid crystal tray of the present invention on which a liquid crystal material is loaded. 2 shows a liquid crystal tray of the present invention on which a liquid crystal material is loaded.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid crystal tray 10 Main body 11 Groove 12 Recess 13 Edge 14 Liquid crystal material 100, 100 ', 100 "Liquid crystal tray 101, 101', 101" Main body 102 Notch part 103 Notch part 110 First side surface 120 Second side surface 130 Third side surface 140 Fourth side surface 150 Loading surface 160 Bottom surface 200 Liquid crystal tray 210 Joining portion 310 Positioning blocks S1, S2, S3 Liquid crystal injection step

Claims (9)

In the liquid crystal tray that injects liquid crystal material into the panel,
A liquid crystal tray comprising a stacking surface and four side surfaces, wherein the stacking surface includes a main body which is a complete plane adjacent to the side surface.   The liquid crystal tray according to claim 1, wherein when the liquid crystal material is injected, the liquid crystal material is placed on the stacking surface, and an edge of the panel is in contact with the stacking surface. In liquid crystal trays used for liquid crystal injection equipment,
A liquid crystal tray, comprising: a main body including a loading surface that is a complete plane; and a joint that is installed on a bottom surface of the main body and is joined to the liquid crystal injection facility.   The liquid crystal tray according to claim 3, wherein the joint portion is smaller than the main body and includes two sandwiching areas formed on both sides thereof. In the liquid crystal tray that injects liquid crystal material into the panel,
A main body having a convex cross-section, including a loading surface that is a perfect plane, the liquid crystal material being placed on the loading surface when the liquid crystal material is injected, and an edge of the panel contacting the loading surface; Including LCD tray. In the liquid crystal tray that injects liquid crystal material into the panel,
The liquid crystal material has a structure having a step at one end of the side surface and includes a completely flat loading surface. When the liquid crystal material is injected, the liquid crystal material is placed on the loading surface, and the edge of the panel is the loading surface. A liquid crystal tray comprising a main body in contact with the liquid crystal tray. In a liquid crystal injection method for injecting a liquid crystal material,
Providing a liquid crystal tray and panel including a loading surface that is a perfect plane;
Placing the liquid crystal material on the loading surface; and contacting the edge of the panel having the loading surface and injecting the liquid crystal material from the liquid crystal tray into the panel. Liquid crystal injection method. Providing a liquid crystal tray and chamber that is installed in the chamber and includes a completely planar loading surface;
Reducing the pressure in the chamber;
Providing a liquid crystal material;
Placing the liquid crystal material on the loading surface;
Steps to provide panels,
An edge of the panel having the loading surface contacts the loading surface, the liquid crystal material is injected from the liquid crystal tray into the panel, and the pressure in the chamber is increased to normal pressure. A liquid crystal injection method characterized.   9. The liquid crystal injection method according to claim 7, wherein a ratio between an amount of the liquid crystal material placed on the stacking surface and an amount of the liquid crystal material injected into the panel is 3: 1 to 5: 1.

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