KR0140117Y1 - Liquid crystal device - Google Patents

Abstract

In order to prevent static electricity leakage caused by poor contact between the antistatic film 56 and the extraction pattern 58 when the static electricity generated in the manufacturing process of the liquid crystal display device and the like is drawn out to the outside, each electrode 50, 52 is formed on the upper portion of the insulating film 57 and the cutout portion 1 formed by cutting the portion formed in the extraction pattern 57 of the insulating film 57 located below the alignment layer 55 is applied to the upper portion of the insulating film 57 The connection between the prevention layer 56 and the lead pattern 58 is enlarged to prevent contact failure, thereby improving display defects caused by static electricity.

Description

LCD

1 is a plan view showing a lower panel of the liquid crystal display device according to the present invention.

FIG. 2 is a partially enlarged cross-sectional view illustrating a corner portion where a drawing pattern is formed in FIG. 1.

3 is a cross-sectional view showing a general liquid crystal display device.

FIG. 4 is a plan view showing a lower panel in which a withdrawal pattern is formed.

* Explanation of symbols for main parts of the drawings

1: incision

[Industrial use]

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device having improved adhesion between an extraction pattern formed to draw out static electricity formed in a segment electrode and a common electrode to the outside and an antistatic film.

[Prior art]

In general, flat display devices that can reduce the installation area compared to cathode ray tubes include liquid crystal displays, plasma display panels, electroluminescent devices, and fluorescent float tubes. The liquid crystal display is a device using a liquid crystal twisted by an external voltage.

In the liquid crystal display, as shown in FIG. 3, the upper panel 51 in which the common electrode 50 is formed, and the lower part in which the segment electrode 52 forming a matrix shape with the common electrode 50 are formed. Liquid crystal interposed between the panel 53, the seal member 54 for sealing the upper and lower panels 51 and 53, and the upper and lower panels 51 and 53 and the seal member 54. (Not shown).

Of course, the upper part of the common electrode 50 and the segment electrode 52 is coated with the alignment layer 55 and the antistatic film 56, and a part of the common electrode 50 and the segment electrode 52 is applied to apply voltage. It protrudes outward.

When the liquid crystal display device has a different potential applied to each pixel of the common electrode 50 and the segment electrode 52, the liquid crystal located in the selected pixel is untwisted so that light of the backlight not shown is emitted. By transmitting, a predetermined image is reproduced.

Here, the alignment layer 55 is subjected to a rubbing process to arrange the liquid crystal molecules in a predetermined direction to adjust the twist angle, and to place the insulating layer 57 between the alignment layer 55 and the electrodes 50 and 52. This prevents the short between each electrode.

In particular, since the insulating layer 57 is spaced apart by several micrometers, it is prevented from being shorted by foreign matter mixed in the liquid crystal, thereby preventing breakage of each electrode.

Here, as described above, the static electricity is generated in the rubbing process performed on the alignment layer 55 to arrange the liquid crystal molecules, and after the fabrication of the liquid crystal display device, the liquid crystal is twisted at a predetermined angle by the above-mentioned static electricity, and the defect is displayed in appearance. In addition, the antistatic film 56 is coated on the alignment layer 55 to remove the static electricity because the leakage current between the pixels is generated by the static electricity and malfunction occurs.

Further, in order to draw the static electricity formed in the antistatic film 56 to the outside, as shown in FIG. 4, a drawing pattern 58 is formed on the outermost part of the segment electrode formed on the lower panel, and the antistatic film ( 56) as well as grounded with the external circuit board (P) is grounded through this, the static electricity is leaked to the outside.

Of course, the lead pattern 58 is formed at the outermost edges of the upper and lower panels 51 and 53.

[Problem trying to solve]

However, as described above, the extraction pattern 58 is formed at the outermost side of each electrode 50 and 52 and grounded to the antistatic layer 56, and the extraction pattern 58 and the circuit board P are connected. The discharge of static electricity by grounding has a problem that the contact of the extraction pattern 58 and the antistatic film 56 is difficult to contact by the insulating film 57 positioned therebetween, thereby preventing the leakage of static electricity.

Accordingly, an object of the present invention is to provide a liquid crystal display device which can prevent static leakage caused by poor contact between the antistatic film and the extraction pattern when the static electricity generated in the manufacturing process of the liquid crystal display device is drawn out to the outside. In providing.

[Means to solve the problem]

In order to realize the above object, the present invention provides an antistatic film and a drawing pattern which are formed on the top of each insulating film by forming an incision cut out of the drawing pattern forming part of the insulating film, which is located at the top of each electrode and located below the alignment film. The contact portion is enlarged so as to prevent contact failures.

[Action]

The static electricity generated during the rubbing process of the liquid crystal display element and the like remaining in the internal electrode is collected by the antistatic film and concentrated in a drawout pattern grounded through the cutout of the insulating film.

Of course, since the insulating film is formed only in the formation portion of the extraction pattern, there is no problem in the protective role of the electrode.

The static electricity concentrated in the drawing pattern flows out to the grounding means of the circuit board in contact with the drawing pattern, thereby completely removing the static electricity in the liquid crystal display.

EXAMPLE

1 is a plan view showing a lower panel of the liquid crystal display according to the present invention, the lower panel 53, the segment electrode 52 sequentially formed on the lower panel 53, the segment electrode 52 A drawing pattern 58 formed at the outermost part of the insulating film, an insulating film 57 having the cutout portion 1 formed therein so as not to coat the drawing pattern 58 with the segment electrode 52 described above, and the insulating film ( 57 and an antistatic feeling 56 applied to the upper portion of the alignment layer 55 and contacting the lead pattern 58 with a portion thereof.

Of course, the upper panel, not shown, has the same structure.

When the static electricity is collected in the upper panel (not shown) and the lower panel 53, it is concentrated in the antistatic film 56, the short with the electrodes 50, 52 by the insulating film 57 is prevented.

Here, the static electricity is introduced into the withdrawal pattern 58 in contact with the antistatic film 56, the contact between the antistatic film 56 and the withdrawal pattern 58 is the lower panel as shown in FIG. (53), the extraction pattern 58 and the segment electrode 52 and the above-described segment electrode 52, which are applied on the upper portion thereof, are not included and the extraction pattern 58 is not applied by the cutout 1. The insulating film 57, the alignment film 55 applied on the insulating film 57, the antistatic film coated on the alignment film 55, and the extraction pattern 58 and the egg contact 56).

That is, the extraction pattern 58 is not separated from the antistatic film 56 by the cutout 1 of the insulating layer 57, so that static electricity collected in the antistatic film 56 is easily introduced into the extraction pattern 58. will be.

Static electricity introduced into the lead pattern 58 is introduced into the circuit board P shown in FIG. 4 and discharged to the outside.

Of course, the circuit board P is provided with a grounding means (not shown) in contact with the drawing pattern 58.

[Effect of design]

As described above, the present invention forms the lead pattern and the antistatic layer formed on the outermost side of each electrode so as to be easily contacted through the cutout formed in the insulating layer, thereby drawing static electricity from the inside of the liquid crystal display device to the outside, and There is an advantage that can prevent malfunction.

Claims (1)

The upper and lower panels 51 and 53 on which the common electrode 50 and the segment electrode 52 are formed, the sealing material 54 which seals the upper and lower panels 51 and 53, and each of the electrodes described above. An insulating film 57 coated on the upper portion of the 50 and 52, an alignment film 55 coated on the insulating film 57, an antistatic film 56 coated on the alignment film 55, and In the liquid crystal display device which is connected to the circuit board P and composed of the drawing patterns 58 formed on the outermost sides of the electrodes 50 and 52, the antistatic film 56 and the drawing patterns 58 are in contact with each other. And a cutout (1) formed in the insulating film (57).