JP2001242478A - Manufacturing device of liquid crystal display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely cure ultraviolet-curing resin, in attaching of a clip type terminal pin in a terminal part of a liquid crystal display panel, and fixing and protecting the chip part with the ultraviolet-curing resin. SOLUTION: Ultraviolet lamps 8a, 8b and 8c are disposed, respectively at three places, an upper part of the terminal part 1a of the liquid crystal display panel 1, in which the clip part 3b of the clip type terminal pin 3 is attached, a lower part, and a side, and an ultraviolet-curing resin 7 applied on the clip part 3b is irradiated with ultraviolet rays by respective ultraviolet lamps 8a, 8b and 8c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a liquid crystal display device, and more particularly, to a clip type terminal pin attached to a terminal portion of a liquid crystal display panel, and the attached portion is protected by an ultraviolet curing resin. It is about technology.

[0002]

2. Description of the Related Art As shown in FIG. 2, a terminal portion 1a is provided on at least one side of a liquid crystal display panel 1 so as to protrude, and the terminal portion 1a is provided with a transparent electrode for display. A large number of connecting electrodes (leading electrodes) 2 are formed.

Normally, a TCP substrate or the like for driving a liquid crystal is connected to the terminal portion 1a. For example, when the number of display pixels is relatively small, a clip type terminal pin 3 may be attached.

[0004] The clip type terminal pin 3 is
3A, the clip portion 3b is elastically deformable at one end, and the clip portion 3b is pressed against the terminal portion 1a, and the opening side thereof is forcibly expanded, so that the terminal portion 1 as shown in FIG.
a.

In this case, one clip-type terminal pin 3 is assigned to one connection electrode 2.
If each of them is attached to the terminal portion 1a, it takes a lot of trouble.

Therefore, when the plurality of terminal pins 3 are carried on the tape base material T, they are carried to the terminal section 1a by the conveyor belt 5, and when the part series of the terminal pins 3 arrives at the pin mounting stage. Thus, for example, the liquid crystal display panel 1 is moved toward the pin receiving plate 6, and a plurality of terminal pins 3 are collectively attached to the terminal portion 1a.

According to this, the terminal pin 3 is held on the terminal portion 1a by the elastic clamping force of the clip portion 3b. However, the impact resistance and the electrical reliability are difficult only by the spring elasticity. There is. Therefore, as shown in FIG.
An ultraviolet curable resin (UV resin) 7 is applied to the clip portion 3b, and is cured, so that the fixing of the clip portion 3b is further strengthened.

[0008]

An ultraviolet lamp is used to cure the ultraviolet-curable resin 7. Conventionally, ultraviolet lamps 8a and 8b are disposed above and below the terminal portion 1a, respectively. From there, the ultraviolet curing resin 7 is irradiated with ultraviolet rays.

However, according to this, the side surface portion 7a of the ultraviolet-curable resin 7 is
As a result, uncured portions remain, and, for example, in the case of a liquid crystal element that is susceptible to impact, such as an in-vehicle liquid crystal element, the terminal pins 3 may be displaced, resulting in unstable electrical contact. there were.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and its structural feature is a terminal attaching means for attaching a clip-type terminal pin to a terminal portion of a liquid crystal display panel. An apparatus for manufacturing a liquid crystal display device, comprising: a resin application unit for applying an ultraviolet curable resin to a clip portion of the terminal pin attached to the terminal unit; and an ultraviolet irradiation unit for curing the ultraviolet curable resin. Wherein the ultraviolet irradiation means irradiates the ultraviolet curable resin applied to the clip portion with ultraviolet light from above the terminal portion and irradiates ultraviolet light from below the terminal portion. In addition to the above-described second ultraviolet lamp, a third ultraviolet lamp that irradiates ultraviolet rays from the side of the terminal portion is further provided.

According to this configuration, since the ultraviolet light is irradiated to the side surface portion of the ultraviolet curable resin from the third ultraviolet lamp, the entire ultraviolet curable resin can be surely cured without leaving the uncured portion. it can. In this case, it is preferable that the third ultraviolet lamp is disposed within a range of ± 45 degrees with respect to a plane including the terminal portion.

[0012]

Next, an embodiment of the present invention will be described with reference to FIG. In this embodiment, the liquid crystal display panel 1, the clip-type terminal pins 3, and the transport belt 5 do not need to be particularly changed, and the above-described conventional example should be appropriately referred to.

In this manufacturing apparatus for a liquid crystal display element, terminal mounting means for mounting the clip-type terminal pin 3 to the terminal 1a of the liquid crystal display panel 1 and ultraviolet curing to the clip 3b of the terminal pin 3 mounted on the terminal 1a. There is provided a resin application unit for applying the mold resin 7 and an ultraviolet irradiation unit for curing the ultraviolet-curable resin 7.

In this case, for example, the liquid crystal display panel 1 is connected to the pin receiving plate 6 as described with reference to FIG.
Side, and clip-type terminal pins 3
a. Although not particularly shown, the resin application means may be a commonly used dispenser nozzle.

In the present invention, in addition to the first ultraviolet lamp 8a disposed above the terminal portion 1a and the second ultraviolet lamp 8b disposed below the terminal portion 1a, the ultraviolet irradiating means includes the terminal portion 1a. A third ultraviolet lamp 8c is provided on the side, and the ultraviolet light is reliably applied to the side surface portion 7a of the ultraviolet-curable resin 7. Although only one ultraviolet lamp 8a to 8c is shown in FIG. 1, a plurality of ultraviolet lamps may be arranged in a row.

It is preferable that the performance of each of the ultraviolet lamps 8a to 8c is the same and that the ultraviolet lamps 8a to 8c are arranged at substantially equal distances with respect to the terminal portion 1a. Are preferably arranged within an angle range of ± 45 degrees.

In this embodiment, each of the ultraviolet lamps 8a
8c is 2Kw, and the exposure amount at the terminal 1a is 20K.
It is set to 00 mJ. After attaching the clip-type terminal pins 3 to the terminal portions 1a of the liquid crystal display panel 1, an acrylic resin (trade name: L made by Nippon Loctite Co., Ltd.) is used as the ultraviolet curable resin 7 so as to cover the entire surface of the clip portions 3b.
X-0314). And each ultraviolet lamp 8
The ultraviolet curable resin 7 was cured by irradiating ultraviolet rays for 20 seconds from a to 8c.

When a tacking test (test for seeing whether or not the cotton on the cotton swab adheres to the ultraviolet curable resin) was performed on this example, it was found that cotton adhered to any surface of the ultraviolet curable resin 7. Did not.

Further, a side portion 7a of the ultraviolet-curable resin 7
Was 98% as measured by FT-IR. As a comparative example, in the case of the conventional example shown in FIG. 3, the degree of cure of the portion 7a was 80 to 95%. Also, when the pull-out strength of the terminal pin 3 was measured, in the case of this embodiment, 5 k
gf. As a comparative example, in the case of the conventional example of FIG.
４4 kgf.

[0020]

As described above, according to the present invention,
Attach clip-type terminal pins to the terminals of the liquid crystal display panel, and fix and protect the clips with ultraviolet-curing resin. Ultraviolet lamps are placed at three locations above, below, and on the side of the terminals to cure. By irradiating the mold resin with ultraviolet rays, the entire ultraviolet-curable resin can be reliably cured without leaving uncured portions.

[Brief description of the drawings]

FIG. 1 is a schematic view schematically showing an embodiment of a liquid crystal display element manufacturing apparatus according to the present invention.

FIG. 2 is a perspective view showing an example in which a clip-type terminal pin is attached to a terminal portion in the apparatus for manufacturing a liquid crystal display element.

FIG. 3 is a schematic view schematically showing a conventional apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Liquid crystal display panel 1a Terminal part 2 Connection electrode 3 Clip-type terminal pin 5 Conveyor belt 6 Pin receiving plate 7 Ultraviolet curing resin 8a First ultraviolet lamp 8b Second ultraviolet lamp 8c Third ultraviolet lamp

Continuation of the front page (72) Inventor Hiroshi Seki 2-2-234 Higashizao, Nagaoka-shi, Niigata Japan Seiki Co., Ltd. F-term (reference) 2H088 FA18 FA30 HA05 MA20 2H092 GA52 HA27 MA35 NA18 NA27 5G435 AA07 AA14 AA16 AA17 BB12 EE41 GG31 GG42

Claims (2)

[Claims] 1. A terminal attaching means for attaching a clip-type terminal pin to a terminal part of a liquid crystal display panel, a resin applying means for applying an ultraviolet curing resin to a clip part of the terminal pin attached to the terminal part, An apparatus for manufacturing a liquid crystal display device, comprising: an ultraviolet light irradiating means for curing an ultraviolet curable resin, wherein the ultraviolet light irradiating means includes a terminal portion for the ultraviolet curable resin applied to the clip portion. In addition to the first ultraviolet lamp for irradiating ultraviolet rays from above and the second ultraviolet lamp for irradiating ultraviolet rays from below the terminal section, the apparatus further comprises a third ultraviolet lamp for irradiating ultraviolet rays from the side of the terminal section. An apparatus for manufacturing a liquid crystal display element. 2. The apparatus according to claim 1, wherein the third ultraviolet lamp is disposed within a range of ± 45 degrees with respect to a plane including the terminal portion.