KR101084858B1 - Module for lcd - Google Patents

Abstract

The present invention relates to a module of a liquid crystal display device. The module of the disclosed liquid crystal display device includes: a liquid crystal panel in which an upper plate and a lower plate are spaced apart from each other, and a liquid crystal is filled therebetween; First and second polarizers attached to both sides of the liquid crystal panel, respectively; A driver driver IC formed at an outer portion of a lower plate of the liquid crystal panel; It is characterized in that it comprises a top cover surrounding the edges and side surfaces of the front and rear of the liquid crystal panel, the pressing structure is formed in the lower portion of the front edge.

The module of the liquid crystal display device according to the present invention can prevent the gate driver IC from electrostatic damage in the module of the liquid crystal display device employing a line on glass (LOG) structure.

Driver cover, top cover, static

Description

Module of liquid crystal display device {MODULE FOR LCD}

1 is a view showing a data driver IC and a gate drive IC formed in a typical LOG type liquid crystal display.

2 is a cross-sectional view taken along line AA ′ of FIG. 1.

3 is a view showing the generation of static electricity in FIG.

4 is a view schematically showing the structure of a first embodiment of a module of a LOG type liquid crystal display according to the present invention;

5 is a plan view schematically showing the structure of the top cover of FIG.

6 is a view schematically showing the structure of a second embodiment of a module of a LOG type liquid crystal display according to the present invention;

7 is a plan view showing the structure of the top cover of FIG.

<Description of the symbols for the main parts of the drawings>

410, 610 --- Liquid Crystal Panel 402, 602 --- Bottom

404, 604 --- Top plate 406, 606 --- First polarizer

408, 608 --- Second Polarizer 420, 620 --- Top Cover

430, 630 --- Gate Driver ICs

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a module of a liquid crystal display device, and more particularly, to a module of a liquid crystal display device employing a line on glass (LOG) structure, wherein the driving driver IC can be prevented from electrostatic damage. It is about a module.

A liquid crystal display (LCD) displays an image corresponding to a video signal on a liquid crystal panel in which liquid crystal cells are arranged in a matrix form by adjusting light transmittance of liquid crystal cells according to a video signal.

Such LCDs have characteristics such as light weight, thinness, and low power consumption, so that their application range is gradually increasing. Due to this trend, chip on glass (hereinafter referred to as 'COG') type has been in the spotlight as a mounting structure of a driving LSI of a high precision liquid crystal panel. On the other hand, in a COG panel, a line on glass (hereinafter, 'LOG') forming a conductor on a lower glass substrate in order to apply a signal to each integrated circuit (IC). Method is used.

FIG. 1 is a view showing a data driver IC and a gate drive IC formed in a typical LOG type liquid crystal display. As shown therein, the LOG type liquid crystal display device 100 includes a pixel region 110 in which pixels formed by vertically crossing a data line (not shown) and a gate line (not shown) are arranged in a matrix form; A data driver 122 formed in the non-pixel region 120 to supply a data signal to the data line of the pixel region 110, and a non-pixel region to supply a gate signal to the gate line of the pixel region 110. And a gate driver 121 formed in the gate driver 121.

In general, a liquid crystal panel of a LOG type liquid crystal display device has liquid crystals injected between two glass substrates, a color filter is formed on an upper substrate, and gate lines and data lines are orthogonal to each other on a lower substrate.

In addition, a thin film transistor (TFT) for selectively supplying an image input from the data lines to the liquid crystal cell is formed at the intersection of the gate lines and the data lines on the lower substrate. For this purpose, the gate terminal of the TFT is connected to the gate line, and the source terminal is connected to the data line. The drain terminal of the TFT is connected to the pixel electrode of the liquid crystal cell.

The data driver IC 122 is electrically connected to the data lines on the liquid crystal panel, latches the video data in synchronization with a dot clock input from the outside, and then corrects the latched data signal according to the gamma voltage. .

In addition, the gate driver IC 121 is electrically connected to the gate lines on the liquid crystal panel and sequentially generates scan pulses in response to a gate start pulse input from the outside, and drives the voltage of the scan pulses to drive the liquid crystal cell. Shift to a level appropriate for your needs.

Therefore, the data signal on the data line is supplied to the pixel electrode of the liquid crystal cell by the TFT in response to the scan pulse input from the gate driver IC 121.

2 is a cross-sectional view taken along line AA ′ of FIG. 1. As shown in FIG. 2, the module 200 of the conventional LOG type liquid crystal display device includes a liquid crystal panel 210 in which an upper plate and a lower plate are spaced apart from each other, and filled with liquid crystal therebetween, and the liquid crystal panel 210. A gate driver IC 230 formed at an outer portion of the lower plate of the base plate; It is configured to include a top cover 220 surrounding the edge and side of the liquid crystal panel 210.

3 is a diagram illustrating the generation of static electricity in FIG. 2. As shown in the drawing, when the static electricity flows from the outside through the gap between the junction of the top cover 220 and the polarizer, the gate driver IC 230 exposed to the bottom plate is affected. When received, a problem occurs that flicker occurs during the operation of the liquid crystal panel.

SUMMARY OF THE INVENTION An object of the present invention is to provide a module of a liquid crystal display device which can prevent a driving driver IC from electrostatic damage in a module of a liquid crystal display device employing a line on glass (LOG) structure.

In order to achieve the above object, the module of the liquid crystal display device according to the present invention,

An upper panel and a lower panel spaced apart from each other, and a liquid crystal panel in which liquid crystal is filled therebetween;

First and second polarizers attached to both sides of the liquid crystal panel, respectively;

A driver driver IC formed at an outer portion of a lower plate of the liquid crystal panel;

It is characterized in that it comprises a top cover surrounding the edge and side portions of the front and rear of the liquid crystal panel, the pressing structure is formed in the lower portion of the front edge portion.                     

Here, in particular, the pressing structure formed on the top cover is characterized in that it prevents the static electricity flowing into the top cover.

In addition, the module of the liquid crystal display device according to the present invention in order to achieve the above object,

The upper and lower plates are spaced apart from each other, and the liquid crystal panel filled with liquid crystal therebetween,

First and second polarizers attached to both sides of the liquid crystal panel, respectively;

A driving driver IC formed at an outer portion of the lower plate of the liquid crystal panel;

It is characterized in that it comprises a top cover surrounding the edges and side surfaces of the front and rear of the liquid crystal panel, the banding structure is formed in the front edge.

Here, in particular, the bending structure of the top cover is characterized in that it prevents static electricity flowing into the top cover.

In particular, the top cover is characterized in that it is formed of a metallic material.

In particular, the driving driver IC is characterized in that the gate driver IC.

Here, in particular, the lower part of the liquid crystal panel is characterized in that the backlight assembly for supplying light to the liquid crystal panel is further provided.

According to the present invention as described above, in a module of a liquid crystal display device employing a line on glass (LOG) structure, the driving driver IC can be prevented from electrostatic damage.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.                     

4 is a view schematically showing the structure of a first embodiment of a module of a LOG type liquid crystal display according to the present invention. As shown in the figure, the module 400 of the LOG type liquid crystal display device has an upper panel and a lower panel spaced apart from each other, and a liquid crystal panel 410 in which liquid crystal is filled therebetween, and on both sides of the liquid crystal panel 410. First and second polarizing plates 406 and 408 attached so that the light transmission axes are perpendicular to each other; The driving driver IC 430 formed at the outer portion of the lower plate of the liquid crystal panel 410 and the edges and side surfaces of the front and rear surfaces of the liquid crystal panel 410 are wrapped, and the pressing structure is pushed downward to the front edge. It is configured to include a top cover 420 is formed.

In addition, although not shown in FIG. 4, a backlight unit (not shown) for providing light to the liquid crystal panel and a liquid crystal panel 410 and the backlight unit are formed on a rear surface of the liquid crystal panel and a mold or a metal material. It further includes a main frame (not shown) for fixing and supporting the bottom, and a bottom case (not shown) surrounding the bottom of the liquid crystal panel 410.

The backlight unit (not shown) includes a lamp housing equipped with a lamp, a light guide plate for converting light incident from the lamp into a surface light source, a diffusion sheet attached to the light guide plate to increase light efficiency incident to the liquid crystal panel, Optical sheets stacked in a plurality of sheets, such as a prism sheet, a protective sheet, and a reflector attached to the rear surface of the light guide plate and reflecting light emitted to the rear surface of the light guide plate to the liquid crystal panel.

The liquid crystal panel 410 is a liquid crystal cell (not shown) is injected between the two upper substrate 404 and the lower substrate 402 to which the polarizers 406 and 408 are attached, respectively, and arranged in a matrix form. Each is driven by a thin film transistor (TFT).

The top cover 420 is formed of a metal material and surrounds edges and sides of the front and rear surfaces of the liquid crystal panel 410.

The driving driver IC (Integrated Circuit) is composed of a gate driver IC 430 and a data driver IC (not shown), and is mounted on the edge of the lower plate of the liquid crystal panel 410 in a LOG type. In addition, the driving driver IC is an integrated structure without a separate PCB and tape carrier.

Meanwhile, in the present invention, the gate driver IC 430 in which electrostatic damage is easily generated will be referred to.

A detailed description of the driving of the driving driver integrated circuit (IC) will be omitted with reference to the bar illustrated in FIG. 1.

The gate driver IC 430 formed at the edge of the lower plate 402 of the liquid crystal panel 410 is exposed, and the top cover 420 protects the exposed portion.

5 is a plan view schematically illustrating the structure of the top cover of FIG. 4. As shown in the drawing, the top cover 420 is formed in a structure surrounding an edge of a front side, a side portion, and a rear side of the liquid crystal panel 410.

Further, a press (A) structure is further formed on the side surface of the front surface of the liquid crystal panel 410.

The pressing structure A absorbs the static electricity introduced through the gap GAP between the first polarizing plate 408 and the top cover 420 of the liquid crystal panel 410 by the metal top cover 420. As a result, the gate driver IC 430 exposed on the lower plate inside the top cover 420 is protected.

That is, the pressing structure of the top cover 420 is protected from the static electricity introduced by the gate driver IC 430 formed outside the corresponding position.

6 is a view schematically showing the structure of a second embodiment of a module of a LOG type liquid crystal display according to the present invention. As shown in the figure, the upper plate 602 and the lower plate 604 are spaced apart from each other, and the liquid crystal panel 610 filled with the liquid crystal therebetween, and the optical transmission axis on each side of the liquid crystal panel 610, respectively. First and second polarizers 606 and 608 attached to be perpendicular to each other; A driving driver IC 630 formed at an outer portion of the lower plate 602 of the liquid crystal panel 610, and surrounding edges and side surfaces of the front and rear surfaces of the liquid crystal panel 610, and a banding structure at the front edges thereof. It is configured to include a top cover 620 is formed.

Here, a detailed description of the second embodiment will be omitted with reference to the bar mentioned in the first embodiment.

On the other hand, Figure 7 is a plan view showing the structure of the top cover of FIG. As shown in the drawing, the top cover 620 is formed in a structure surrounding an edge of a front side, a side portion, and a rear side of the liquid crystal panel 610.                     

The side surface of the front surface of the liquid crystal panel 610 has a banding treatment (B). In this case, the bending (B) portion is bent in a B-shape at a position corresponding to the corner portion of the upper plate 604 of the liquid crystal panel 610 to cause a step.

Therefore, the static electricity introduced through the gap GAP between the first polarizing plate 608 and the top cover 620 of the liquid crystal panel 610 in the bending process (B) is the top cover of the metal material ( Absorption of the 620 protects the gate driver IC 630 exposed on the lower plate inside the top cover 620.

That is, the bending process B of the top cover 620 is protected from the static electricity introduced by the gate driver IC 630 formed outside the corresponding position.

Therefore, in the module of the liquid crystal display device applying the line on glass (LOG) structure as described in the above embodiment of the present invention, by modifying the structure of the top cover, the driving driver IC inside the top cover is modified. It can prevent the inflow of static electricity.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

 As described above, the module of the liquid crystal display device according to the present invention can prevent the gate driver IC from electrostatic damage in the module of the liquid crystal display device employing a line on glass (LOG) structure.

Claims (7)

The upper and lower plates are spaced apart from each other, and the liquid crystal panel filled with liquid crystal therebetween, First and second polarizers attached to both sides of the liquid crystal panel, respectively; A driver driver IC formed in an outer portion of the lower plate of the liquid crystal panel by a line on glass method and exposed; A top cover formed of a metal material to cover edges and side surfaces of the front and rear surfaces of the liquid crystal panel, surrounding the driving driver IC, and having a pressing structure protruding downward from the front edge; The pressing structure may be spaced apart from the top cover and the first polarizing plate on the top cover by a predetermined distance, and the driving driver IC may be formed outside the corresponding position on the top cover to block static electricity flowing into the top cover. A module of a liquid crystal display device, characterized in that. delete The upper and lower plates are spaced apart from each other, and the liquid crystal panel filled with liquid crystal therebetween, First and second polarizers attached to both sides of the liquid crystal panel, respectively; A driver driver IC formed in an outer portion of the lower plate of the liquid crystal panel by a line on glass method and exposed; A top cover formed of a metal material to cover edges and side surfaces of the front and rear surfaces of the liquid crystal panel, surrounding the driving driver IC, and having a banding structure formed at the edges of the front surface; The banding structure may be spaced apart from the top cover and the first polarizing plate on the top cover by a predetermined distance, and the driving driver IC may be formed outside the corresponding position on the top cover to block static electricity flowing into the top cover. , The bending structure is a module of a liquid crystal display device, characterized in that the step is bent in a "b" shape at a position corresponding to the edge of the upper plate of the liquid crystal panel. delete delete The method according to claim 1 or 3, And said drive driver IC is a gate driver IC. delete

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