JP2001311927A - Positioning device of liquid crystal panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to adjust an angle of a liquid crystal panel to a polarizing film, for example, by using one adjusting screw. SOLUTION: A hole 43 is formed by drilling a ruler plate 4 which is axially supported by a perpendicular rotating shaft 8 and regulates the angle of the liquid crystal panel P and an adjusting screw 10 is put through the hole 43 to be screw threaded with a female screw 52 provided in a screen plate 51 of a fixed side and a compression coil spring 11 is interposed between the ruler plate 4 and the screen plate 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for positioning a liquid crystal panel, and more specifically, for example, when attaching a polarizing film to a liquid crystal panel, adjusting the position of the liquid crystal panel to be attached to its polarization axis. The present invention relates to a liquid crystal panel positioning device.

[0002]

2. Description of the Related Art As a final stage of a process of assembling a liquid crystal panel, there is a process of attaching a polarizing film to a panel surface of the assembled liquid crystal panel. In this bonding, it is necessary to adjust the relative position between the polarizing film and the liquid crystal panel. In many cases, the liquid crystal panel side is moved with reference to the polarizing axis of the polarizing film.

FIG. 4 is a perspective view and FIG.
The conventional device 1 used for this adjustment will be described. A base 2 having a horizontal stage surface 3 on which a liquid crystal panel P is mounted is provided on a predetermined side of the liquid crystal panel P mounted on the stage surface 3. And a ruler plate 4 having a reference surface 41 that abuts.

The ruler plate 4 is disposed on a support plate 5 having an L-shaped cross section and provided along one side of the base 2.
A substantially central portion in the length direction of the ruler plate 4 is supported by a vertical rotating shaft 8 erected on the support plate 5. Therefore, the ruler plate 4 can rotate around the vertical rotation axis 8,
It is fixed at a predetermined rotational position by the angle adjusting means 6.

In this case, the angle adjusting means 6 includes two adjusting screws 6a and 6b. The adjusting screws 6a and 6b are formed in female screw holes 4 formed on both end sides of the ruler plate 4, respectively.
2, 42, the tip of which is the partition plate 51 of the support plate 5.
Abutment is possible.

According to this, for example, one adjustment screw 6a
Is turned clockwise to enter, and the other adjusting screw 6b is turned counterclockwise to retract, so that the ruler plate 4 is adjusted to a predetermined inclination angle as shown in FIG. Can be fixed in position.

[0007]

However, in this positioning device 1, as described above, one of the adjusting screws 6a is used.
For example, as the clockwise rotation is performed, the other adjustment screw 6b must be rotated counterclockwise by the same amount, so that it is difficult to adjust the angle of the ruler plate 4. By the way, if one approach amount is large and the other retreat amount is small, the ruler plate 4
Play will occur.

[0008]

According to the present invention, only one
The angle of the ruler plate can be easily adjusted using only the adjusting screw.

That is, the present invention has a base portion having a horizontal stage surface on which a liquid crystal panel is mounted, and a reference surface which can contact one side of the liquid crystal panel on the stage surface, and has a lengthwise direction. A ruler plate having a substantially central portion pivotally supported by a vertical rotation axis, and an angle adjusting means for rotating the ruler plate about the vertical rotation axis, wherein the angle adjustment means is provided at one end of the ruler plate. A through hole formed at a predetermined position, an adjusting screw having a head with a diameter larger than the through hole, and being inserted into the through hole from the outer surface opposite to the reference surface of the ruler plate; The female screw formed on the base portion side to be screwed with the adjusting screw, and the ruler plate so that no gap is generated between the outer surface of the ruler plate and the head of the adjusting screw. Spring means for urging the rotation.

The spring means may be arranged at one end of the ruler plate where the through-hole is formed or at the other end opposite thereto, but is arranged at one end with the through-hole. In this case, a compression coil spring is used, and when it is arranged on the other end side, a tension coil spring is used.

When a compression coil spring is used, it is preferable that the compression coil spring be fitted into the adjusting screw and one end of the compression screw be housed in the through hole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. Note that, in this embodiment, the same reference numerals are used for the components that may or may be regarded as the same as those of the conventional device described above.

In this positioning device 1a, an adjusting screw 10 as an angle adjusting means is provided only on one side of the ruler plate 4. The ruler plate 4 is provided with a through hole 43 through which the adjustment screw 10 is inserted.

Here, when the side surface of the ruler plate 4 opposite to the reference surface 41 is defined as an outer surface 4a, and the surface of the support plate 5 facing the partition plate 51 is defined as the inner surface 4b of the ruler plate 4, Hole 43
Is provided with a storage portion 43a which is hollowed out to a large diameter from the middle thereof toward the inner side surface 4b.

The adjusting screw 10 is a male screw having a head (knob) 10 a having a diameter larger than that of the through hole 43, and has a length penetrating the ruler plate 4 and further penetrating the partition plate 51. . A female screw 52 which is a counterpart of the adjusting screw 10 is formed on the partition plate 51.

A compression coil spring 11 is coaxially mounted on the adjusting screw 10. The compression coil spring 11 is disposed between the ruler plate 4 and the partition plate 51 in an appropriately compressed state, and constantly urges the ruler plate 4 clockwise in FIG. In this embodiment, one end side of the compression coil spring 11 is housed in a housing 43a which is hollowed out to a large diameter. Thus, the distance between the ruler plate 4 and the partition plate 51 does not need to be increased.

According to the positioning device 1 a, the ruler plate 4 is moved by the compression coil spring 11 so that the head 10
Since it is always pressed against a, no play occurs in the ruler plate 4. Therefore, the ruler plate 4 can be fixed with one adjusting screw 10.
Angle can be adjusted.

The compression coil spring 11 may be disposed anywhere on the ruler plate 4 as long as it is within the range from the central vertical rotation shaft 8 to one end where the adjusting screw 10 is provided. Further, a leaf spring may be used instead of the compression coil spring.

As another example, a tension spring can be used. In this case, the tension spring is provided between the ruler plate 4 and the partition plate 51 on the opposite side of the ruler plate 4 where the adjusting screw 10 is not provided.

[0020]

As described above, according to the present invention,
The ruler plate is always pressed against the head of the adjusting screw by a spring means so that play does not occur in the ruler plate.
By simply operating the two adjusting screws, the angular position of the liquid crystal panel can be easily adjusted.

[Brief description of the drawings]

FIG. 1 is a perspective view of a liquid crystal panel positioning device according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view showing a conventional device.

FIG. 5 is a plan view showing a cross section of a part of the conventional device.

[Explanation of symbols]

 1a Positioning device 2 Base part 3 Stage surface 4 Ruler plate 4a Outer surface 4b Inner surface 41 Reference surface 43 Through hole 43a Storage unit 5 Support plate 51 Partition plate 52 Female screw 8 Vertical rotation axis 10 Adjustment screw 10a Head 11 Compression coil spring ( Spring means) P Liquid crystal panel

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H088 FA16 FA18 FA30 HA18 MA20 2H091 FA08X FA08Z FC29 FD12 FD15 5G435 AA17 BB12 KK03

Claims (4)

[Claims] 1. A base portion having a horizontal stage surface on which a liquid crystal panel is mounted, and a reference surface capable of contacting one side of the liquid crystal panel on the stage surface, and a substantially central portion in a longitudinal direction. Includes a ruler plate pivotally supported by a vertical rotation axis, and angle adjusting means for rotating the ruler plate about the vertical rotation axis, wherein the angle adjustment means is formed at a predetermined position on one end side of the ruler plate. The provided through-hole, having a head diameter larger than the above-mentioned through-hole,
An adjusting screw inserted into the through hole from the outer surface side opposite to the reference surface of the ruler plate; a female screw formed on the base portion side to be screwed with the adjusting screw; and the ruler plate A spring means for urging the ruler plate to rotate so that no gap is formed between the outer surface and the head of the adjusting screw. 2. The spring means comprises a compression coil spring interposed between the ruler plate and the base at one end of the ruler plate where the through hole is formed.
A positioning device for a liquid crystal panel according to claim 1. 3. The liquid crystal panel positioning device according to claim 2, wherein the compression coil spring is fitted to the adjustment screw, and one end of the compression coil spring is housed in the through hole. 4. The spring means comprises a tension spring interposed between the ruler plate and the base at the other end of the ruler plate where the through hole is not formed.
A positioning device for a liquid crystal panel according to claim 1.