KR20040062132A - Liquid crystal display panel and fabricating method thereof, liquid crystal display device having the same - Google Patents

Abstract

PURPOSE: A liquid crystal display panel, a method for manufacturing the same, and a liquid crystal display device having the same are provided to prevent cross-talk or flicker by preventing delay and distortion of driving signals transmitted from a data driver to a gate driver by separately transmitting direct current signals and alternating current signals. CONSTITUTION: A second substrate is joined to a first substrate(210) to protrude one short side and one long side of the first substrate. An image display part(230) has a plurality of pixels arranged in the joined area of the first substrate and the second substrate. A gate pad part(240) is formed at the protruded one short side for supplying driving signals to the pixels. A data pad part(250) is formed at the protruded one long side for supplying image data to the pixels. A plurality of first line-on-glass wires(211) are mounted at a corner area of the first substrate where the protruded long and short sides meet so that the first line-on-glass wires transmit first driving signals. A plurality of second line-on-glass wires(212) are mounted at the first substrate in association with an edge of the image display part of the other long and short sides to transmit second driving signals.

Description

Liquid crystal display panel and manufacturing method thereof, and liquid crystal display device having the same {LIQUID CRYSTAL DISPLAY PANEL AND FABRICATING METHOD THEREOF, LIQUID CRYSTAL DISPLAY DEVICE HAVING THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display panel, a method for manufacturing the same, and a liquid crystal display device having the same, and in particular, minimizes resistance and signal distortion of line-on-glass (LOG) wirings formed on the liquid crystal display panel. The present invention relates to a liquid crystal display panel and a method of manufacturing the same, and a liquid crystal display device having the same.

In general, a liquid crystal display device displays a desired image by individually supplying data signals according to image information to liquid crystal cells arranged in a matrix form, and adjusting a light transmittance of the liquid crystal cells. to be.

Accordingly, a liquid crystal display device includes: a liquid crystal display panel in which liquid crystal cells in pixel units are arranged in a matrix form; And a driving circuit for driving the liquid crystal cells.

The liquid crystal display panel includes a color filter substrate and a thin film transistor array substrate, which are opposed to each other at a predetermined interval, and a liquid crystal layer formed at a spaced interval between the color filter substrate and the thin film transistor array substrate. It consists of.

A plurality of data lines for transmitting image information to liquid crystal cells on the thin film transistor array substrate of the liquid crystal display panel; A plurality of gate lines for transmitting the scan signal to the liquid crystal cells are orthogonal to each other, and liquid crystal cells are defined at each intersection of the data lines and the gate lines.

Common electrodes and pixel electrodes are formed on opposite inner surfaces of the color filter substrate and the thin film transistor array substrate to apply an electric field to the liquid crystal layer. In this case, the pixel electrode is formed for each liquid crystal cell on the thin film transistor array substrate, while the common electrode is integrally formed on the entire surface of the color filter substrate. Therefore, by controlling the voltage applied to the pixel electrode in a state where a voltage is applied to the common electrode, it is possible to individually control the light transmittance of the liquid crystal cells.

As described above, in order to control the voltage applied to the pixel electrode for each liquid crystal cell, a thin film transistor used as a switching element is formed in each liquid crystal cell.

The driving circuit may include a gate driver supplying a scan signal to the gate lines; A data driver supplying image information to the data lines; A timing controller which controls driving timing of the gate driver and the data driver; A power supply unit for supplying various driving voltages used in the liquid crystal display device is provided.

The timing controller controls driving timing of the gate driver and the data driver through image information and a control signal supplied from an external graphic processor, and supplies image information to the data driver.

The power supply unit is driven such as a common voltage Vcom, a gate high voltage Vgh, a gate low voltage Vgl, and a gamma reference voltage Vref, which are used in the liquid crystal display using power supplied from an external graphic processor. The voltage is generated and supplied to the gate driver, the data driver, the gamma voltage generator, and the liquid crystal display panels.

The gate driver sequentially supplies scan signals to the gate lines so that the liquid crystal cells arranged in a matrix form are selected one by one, and the selected one line of liquid crystal cells is passed through the data lines from the data driver. Image information is supplied.

The image information is separately supplied to the pixel electrodes of the liquid crystal cells, and the common voltage Vcom is supplied to the common electrode, so that an electric field is applied to the liquid crystal layer according to the voltage difference between the pixel electrode and the common electrode. The light transmittance can be individually adjusted to display a desired image.

The data driver and the gate driver directly connected to the liquid crystal display panel are made of a plurality of integrated circuits (ICs).

The data driving integrated circuits and the gate driving integrated circuits are mounted on a tape carrier package (TCP) and connected to a liquid crystal display panel in a tap automated bonding (TAB) manner.

In the case where the data driving integrated circuits are connected to the liquid crystal display panel in a tapped manner through a tape carrier package, the tape carrier package is connected to a data printed circuit board (PCB) and mounted on the data printed circuit board. Image information, control signals, and driving voltages are supplied from the above-described timing control section and power supply section through the connected wirings.

In addition, when the gate driving integrated circuits are connected to the liquid crystal display panel in a tab manner through a tape carrier package, the tape carrier package is connected to a gate printed circuit board, and through the wirings mounted on the gate printed circuit board. Control signals and driving voltages are supplied from a timing controller and a power supply.

However, in recent years, as semiconductor chips having high integration and high performance have emerged due to the rapidly developing semiconductor processing technology and packaging technology, a controller mounted on the gate printed circuit board is mounted on the data printed circuit board to achieve high integration and high performance semiconductor. Chips can be made one-chip. Accordingly, the gate printed circuit board simply performs a function of transferring a processed signal from the data printed circuit board.

The connection state of the conventional liquid crystal display panel and its driving unit as described above is schematically shown in the exemplary view of FIG.

Referring to FIG. 1, a thin film transistor array substrate 10 and a color filter substrate 20 which are opposed to each other; A gate tape carrier package (30) connected to the gate pad portion of the thin film transistor array substrate (10); A data tape carrier package (40) connected to the data pad portion of the thin film transistor array substrate (10); A gate printed circuit board (50) connected to the gate tape carrier package (30); Shown is a data printed circuit board 60 connected to the data tape carrier package 40.

The data printed circuit board 60 is provided with a controller (not shown) for processing image information, control signals, and driving voltages. In this case, as described above, a high integration and high performance controller is applied to process the control signals and the driving voltages supplied to the gate printed circuit board 50. Accordingly, the gate printed circuit board 50 controls the control signals and driving voltages supplied from the data printed circuit board 50 through the gate tape carrier package 30 through the gate pad portion of the thin film transistor array substrate 10. It has a simple function of passing on.

As described above, in order to supply the control signals and the driving voltages from the data printed circuit board 60 to the gate printed circuit board 50, connectors are provided on the gate printed circuit board 50 and the data printed circuit board 60, respectively. 55 and 65 are formed, and the connectors 55 and 65 formed on the gate printed circuit board 50 and the data printed circuit board 60 are electrically connected by a flexible plate cable (FPC, 70). do.

However, as described above, connectors 55 and 65 are formed to supply control signals and driving voltages from the data printed circuit board 60 to the gate printed circuit board 50, and the flexible plate cable 70 is formed. As the connectors 55 and 65 are electrically connected to each other, the following problems occur in the conventional liquid crystal display.

First, as the connectors 55 and 65 are formed on the thin gate printed circuit board 50 and the data printed circuit board 60, the thickness of the liquid crystal display device increases as much as the thickness of the connectors 55 and 65. Inevitably increased, it becomes a factor that inhibits the thinning of the liquid crystal display device.

Second, as the flexible plate cable 70 for electrically connecting the connectors 55 and 65 should be provided, the number of processes for manufacturing the liquid crystal display device is increased, which increases the manufacturing cost of the liquid crystal display device.

Therefore, recently, line-on for mounting wirings for supplying control signals and driving voltages from the data printed circuit board 60 to the gate printed circuit board 50 in the outer dummy region of the thin film transistor array substrate 10. A glass type liquid crystal display device has been proposed.

The connection state of the conventional line-on-glass type liquid crystal display panel and its driving unit as described above is schematically shown in the exemplary diagram of FIG.

2, a thin film transistor array substrate 110 and a color filter substrate 120 bonded to each other; A gate tape carrier package (130) connected to the gate pad portion of the thin film transistor array substrate (110); A data tape carrier package (140) connected to the data pad portion of the thin film transistor array substrate (110); A gate printed circuit board (150) connected to the gate tape carrier package (130); Shown is a data printed circuit board 160 connected to the data tape carrier package 140.

The data printed circuit board 160 includes a controller for processing image information, control signals, and driving voltages, and the controller can process the control signals and the driving voltages to be supplied to the gate printed circuit board 150. Highly integrated and high performance controllers are applied. Accordingly, the gate printed circuit board 150 controls the control signals and driving voltages supplied from the data printed circuit board 150 through the gate tape carrier package 130 through the gate pad portion of the thin film transistor array substrate 110. It has a simple function of passing on.

In general, the liquid crystal display panel is bonded so that the thin film transistor array substrate 110 and the color filter substrate 120 face each other with a predetermined gap, and a liquid crystal layer is formed at the gap.

One side of the short side and one side of the thin film transistor array substrate 110 protrude relative to the color filter substrate 120, and a gate pad electrically connected to the gate lines of the thin film transistor array substrate 110 in the protruding region. A data pad portion is formed which is electrically connected to the portion and the data lines.

The gate pad part and the data pad part are formed to correspond to the effective image display part of the thin film transistor array substrate 110 and the color filter substrate 120 bonded together.

Accordingly, a corner portion where one short side and one long side of the thin film transistor array substrate 110 meet each other is a dummy region which is not used for any purpose in the liquid crystal display panel.

However, in the line-on-glass type liquid crystal display panel, line-on-glass wiring 111 is mounted on a corner portion (ie, a dummy region) where one side and a long side of the thin film transistor array substrate 110 meet. The control signal and driving voltages are supplied from the data printed circuit board 160 to the gate printed circuit board 150.

Thus, the above-described connectors 55 and 65 of FIG. 1 need not be formed on the gate printed circuit board 150 and the data printed circuit board 160, and also electrically connect the connectors 55 and 65. Flexible plate cable 70 is not required.

The driving voltages supplied to the gate printed circuit board 150 through the line-on-glass wirings 111 are a gate high voltage (Vgh), a gate low voltage (Vgl), a common voltage (Vcom), and a ground voltage (GND). And direct current signals such as a power supply voltage Vcc. In addition, the control signals supplied to the gate printed circuit board 150 through the line-on-glass wirings 111 may include a gate start pulse GSP, a gate shift clock GSC, and a gate enable signal GOE. AC signals.

Since the line-on-glass wirings 111 are patterned and formed at the same time in the process of forming the gate lines and the gate electrodes on the thin film transistor array substrate 110, the relatively resistivity value of the AlNd material is generally 0.046. ) Is formed of a large metal layer.

In addition, the line-on-glass wirings 111 are formed by patterning the plurality of wirings to be finely spaced in a very limited narrow space of a corner portion where one short side and one long side of the thin film transistor array substrate 110 meet.

Therefore, the line-on-glass wirings 111 have a high resistance value, so that gate signals are delayed, and line widths and spacing intervals of the wirings are very finely patterned, so that the gate signals are distorted by being influenced by adjacent wirings. do.

When the gate signals transmitted through the line-on-glass wirings 111 are delayed and distorted, the image quality is displayed as cross-talk or flicker occurs in the image displayed through the liquid crystal display. There was a problem of lowering.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a liquid crystal display panel capable of minimizing resistance and signal distortion of line-on-glass wirings formed on a liquid crystal display panel. A manufacturing method thereof and a liquid crystal display device having the same are provided.

1 is an exemplary view schematically showing a connection state of a conventional liquid crystal display panel and a driving unit thereof.

FIG. 2 is an exemplary view schematically showing a connection state of a liquid crystal display panel of a conventional line-on-glass method and a driving unit thereof. FIG.

3 is an exemplary view briefly showing a liquid crystal display panel according to the present invention.

FIG. 4 is a view illustrating a liquid crystal display panel of FIG. 3, wherein the first line-on-glass wirings are formed, the thin film transistors of the unit pixel are formed, and the second line-on-glass wirings are formed. Exemplary diagram showing an example of the cross-sectional configuration of the substrate.

FIG. 5 is a view illustrating a liquid crystal display panel of FIG. 3, wherein a first line-on-glass wiring is formed, a thin film transistor of a unit pixel is formed, and a second line-on-glass wiring is formed in a first region. Exemplary diagram showing another example of the cross-sectional configuration of the substrate.

6 is an exemplary view schematically illustrating a planar configuration of a liquid crystal display according to an exemplary embodiment in which a driving unit is connected to the liquid crystal display panel of FIG.

*** Explanation of symbols for main parts of drawing ***

210: first substrate 211: first line-on-glass wiring

212: second line-on-glass wiring 220: second substrate

230: Image display unit 240: Gate pad portion

250: data pad unit

According to an aspect of the present invention, there is provided a liquid crystal display panel comprising: a second substrate bonded to the first substrate such that one short side and one long side of the first substrate protrude; An image display unit in which a plurality of pixels are arranged in a bonded region of the first substrate and the second substrate; A gate pad part formed at one protruding short side of the first substrate to supply driving signals to the pixels; A data pad part formed on one protruding long side of the first substrate to supply image information to the pixels; First line-on-glass wirings mounted on an edge region of the first substrate where one protruding short side and one long side of the first substrate meet each other to transmit first driving signals; And second line-on-glass wires mounted on the first substrate along edges of the image display part of the other short side and the other long side of the first substrate to transmit second driving signals.

In order to achieve the object of the present invention, a method of manufacturing a liquid crystal display panel includes forming a conductive material on an upper surface of a first substrate and then patterning the gate lines and gate electrodes in the image display area and at one side of the image display area. Forming first line-on-glass wirings around the edge where the short side and one long side meet, and forming second line-on-glass wirings along the other short side and the other long side edge of the image display area; A gate insulating film, an active layer, and a source / drain electrode are sequentially formed on an upper surface of the resultant to form a thin film transistor provided in the unit pixels of the image display area, and a data line is formed in the image display area together with a source / drain electrode. Simultaneously patterning them; Forming a drain contact hole by forming a passivation layer on an upper surface of the resultant and then selectively etching a portion of the drain electrode of the thin film transistor to expose the drain electrode; And forming a transparent conductive material on the upper surface of the passivation layer, patterning the same, and electrically connecting the drain electrode through the drain contact hole to form a pixel electrode provided in the unit pixels of the image display area. It features.

According to an aspect of the present invention, there is provided a liquid crystal display device comprising: a second substrate bonded to a first substrate to protrude one short side and one long side of the first substrate; An image display unit in which gate lines and data lines cross each other in the bonded area of the first substrate and the second substrate, and a plurality of pixels formed at each crossing area; A gate pad portion formed on one protruding short side of the first substrate and connected to the gate lines; A data pad part formed on one protruding long side of the first substrate and connected to the data lines; A gate driver supplying driving signals to the gate pad part to drive the gate lines; A data driver supplying driving signals to the data pad part to drive the data lines; First line-on-glass interconnections mounted on corner portions of the first substrate where one protruding short side and one long side of the first substrate meet each other to transmit first driving signals from the data driver to the gate driver; Second line-on-glass wirings mounted on a first substrate along edges of the image display part of the other short side and the other long side of the first substrate to transmit second driving signals from the data driver to the gate driver; It is characterized in that the configuration.

The liquid crystal display panel according to the present invention as described above, a manufacturing method thereof, and a liquid crystal display device having the same will be described in detail with reference to the accompanying drawings.

3 is an exemplary view briefly showing a liquid crystal display panel according to the present invention.

Referring to FIG. 3, the first substrate 210 and the second substrate 220 are bonded to each other so that one side and one side of the first substrate 210 protrude, and the first substrate 210 and the second substrate ( An image display unit 230 in which a plurality of pixels are arranged in a matrix form in the bonded area of 220 is illustrated.

The thin film transistor array substrate of the liquid crystal display panel is applied to the first substrate 210, and the color filter substrate is applied to the second substrate 220.

Accordingly, a plurality of data lines are arranged on the first substrate 210 of the image display unit 230 to be spaced apart from the plurality of gate lines that are regularly spaced apart and are arranged in a row. A plurality of pixels are defined for each crossing area of the data lines and arranged in a matrix form.

Each of the plurality of pixels includes a thin film transistor as a switching element and a pixel electrode connected to the thin film transistor.

The second substrate 220 of the image display unit 230 has red, green, and blue color filters separated and applied to each pixel by a black matrix, and the counter electrode of the pixel electrode formed on the first substrate 210. Phosphorus common electrode is provided.

The first substrate 210 and the second substrate 220 configured as described above are bonded by a sealant. At this time, a patterned spacer is formed on the first substrate 210 or the second substrate 220 by a randomly distributed spacer ball or a photolithography process. It has a spaced interval, the liquid crystal layer is formed in the spaced interval.

The gate pad part 240 may be electrically connected to the gate lines in an area corresponding to the image display part 230 to protrude one short side of the first substrate 210 to supply driving signals to the gate lines. Is formed, and a data pad part 250 which is electrically connected to the data lines in an area corresponding to the image display part 230 to supply image information to the data lines is formed on one protruding long side.

First line-on-glass wiring 211 is mounted on an edge portion (ie, a dummy area) where the protruding one short side and one long side of the first substrate 210 meet and transmit first driving signals.

In addition, second line-on-glass wiring lines 212 are mounted along edges of the other short side of the first substrate 210 and the long side of the other side of the image display unit 230 to transmit second driving signals.

The first line-on-glass wiring 211 has a relatively low resistance value because the length is very short compared to the second line-on-glass wiring 212.

Therefore, the DC signal which is highly influenced by the resistance value and sensitive to signal distortion is transmitted to the first driving signals through the first line-on-glass wiring 211, and is relatively less affected by the resistance value. Preferably, the AC signals insensitive to signal distortion are transmitted as second driving signals through the second line-on-glass wiring 212.

DC signals such as a gate high voltage Vgh, a gate low voltage Vgl, a common voltage Vcom, a ground voltage GND, and a power supply voltage Vcc may be applied to the first driving signals. For example, AC signals such as a gate start pulse GSP, a gate shift clock GSC, and a gate enable signal GOE may be applied.

As described above, the line-on-glass type liquid crystal display panel according to the present invention has a first line-on-glass wiring on a corner portion where one short side and one long side of the first substrate 210, that is, the thin film transistor array substrate meet. The second line-on-glass wirings 212 are patterned along the edges of the other short side and the other long side of the thin film transistor array substrate and along the edge of the image display unit 230 of the thin film transistor array substrate. It transmits DC signals sensitive to distortion and AC signals which are relatively less affected by resistance and insensitive to signal distortion.

Therefore, the number of the first line-on-glass wirings 211 patterned in the limited space of the corner portion where one short side and one long side of the thin film transistor array substrate meet can be reduced, and thus, the first line-on- By patterning the line widths of the glass wires 211 widely, the influence of the resistance value of the DC signals transmitted to the first driving signals may be minimized, and the spaced apart intervals of the first line-on-glass wires 211 may be reduced. It is possible to prevent the signal distortion caused by adjacent wirings of the DC signals transmitted to the first driving signals by wide patterning.

The liquid crystal display panel according to the present invention can be applied to a liquid crystal display having a variety of liquid crystal mode (liquid crystal mode), and also a liquid crystal display of driving the liquid crystal through a vertical electric field or a method of driving the liquid crystal through a horizontal electric field It can be applied very effectively to the device.

4 illustrates an area in which first line-on-glass wirings 211 are formed, an area in which a thin film transistor of a unit pixel is formed, and second line-on-glass wiring 212 of the liquid crystal display panel according to the present invention. As an exemplary view showing an example of a cross-sectional configuration of the first substrate 210 in the region to be formed, a first embodiment of a method of manufacturing a liquid crystal display panel according to the present invention will be described in detail with reference to the following.

First, the conductive material is formed on the upper surface of the transparent substrate 310 and then patterned to form the gate electrode 320 in the region where the thin film transistor of the image display unit is formed, and is constant on one side and the other outside of the image display unit, respectively. A plurality of first line-on-glass wires 311 and a plurality of second line-on-glass wires 312 are formed to be spaced apart from each other. In this case, the image display part includes a plurality of gate lines that are uniformly spaced apart laterally along with the gate electrode 320, the first line-on-glass wiring 311, and the second line-on-glass wiring 312. (Not shown) are patterned, such gate electrode 320, first line-on-glass wiring 311, second line-on-glass wiring 312 and gate lines are AlNd. It is preferable to form a conductive material such as.

In addition, a gate insulating layer is formed on the top surface of the transparent substrate 310 on which the gate electrode 320, the first line-on-glass wiring 311, the second line-on-glass wiring 312, and the gate lines are patterned. 321 is formed, and active layers 322 and source / drain electrodes 323 and 324 are sequentially formed in regions where the thin film transistors of the image display unit are formed to form thin film transistors provided in the unit pixels of the image display unit. In this case, a plurality of data lines (not shown) which are vertically spaced with the source / drain electrodes 323 and 324 and arranged vertically are patterned to intersect the gate lines in the image display unit. The electrodes 323 and 324 and the data lines are preferably formed of a conductive material such as Cr or Mo.

The active layer 322 is formed by continuously depositing a semiconductor layer 322A made of amorphous silicon and an ohmic contact layer 322B made of n + amorphous silicon heavily doped with phosphorus (P). It is formed after patterning.

The source / drain electrodes 323 and 324 are patterned and formed after deposition of a metal material such as Cr or Mo on the ohmic contact layer 322B and the gate insulating layer 321, and between the source / drain electrodes 323 and 324. The exposed ohmic contact layer 322B is removed by patterning to expose the semiconductor layer 322A.

In addition, a passivation layer 325 is formed on an upper surface of the gate insulating layer 321 on which the active layer 322 and the source / drain electrodes 323 and 324 are formed, and then a portion of the drain electrode 324 is selectively etched to expose the drain contact. The hole 326 is formed. In general, the protective film 325 is mainly made of a thin film of an inorganic material such as SiNx or SiOx, but recently, in order to improve the aperture ratio of the liquid crystal display device, benzocyclobutene (BCB) having low dielectric constant (BCB) and Eoji Organic materials such as spin on glass (SOG) or photoacryl have been applied as thick films.

In addition, a conductive material is formed on the upper surface of the passivation layer 325 and then patterned to be electrically connected to the drain electrode 324 through the drain contact hole 326. The pixel electrode is provided in the unit pixels of the image display unit. 327 is formed. In this case, the pixel electrode 327 may be formed of a transparent conductive material such as indium-tin-oxide (ITO) or indium-zinc-oxide (IZO).

In the method of manufacturing a liquid crystal display panel according to the present invention, the first line-on-glass wiring 311 and the second line-on-glass wiring 312 are connected to the gate lines and the gate electrodes 320 of the image display unit. It is formed by patterning together.

However, the first line-on-glass wires 311 and the second line-on-glass wires 312 may be formed by patterning the data lines of the image display unit and the source / drain electrodes 323 and 324. The cross-sectional structure is shown in the exemplary diagram of FIG.

As described above, the line-on-glass type liquid crystal display panel according to the present invention is patterned together with the gate lines and the gate electrodes 320 or the data lines and the source / drain electrodes 323 and 324 of the image display unit. The first line-on-glass wiring 311 and the second line-on-glass wiring 312 can be formed.

Therefore, the liquid crystal display panel of the present invention is manufactured without the need for an additional process, and thus is affected by the resistance value, and the DC signals sensitive to the signal distortion and the resistance value are relatively affected. It receives less and can transmit separate AC signals which are insensitive to signal distortion.

FIG. 6 is an exemplary view schematically illustrating a planar configuration of a liquid crystal display according to an exemplary embodiment in which a driving unit is connected to the liquid crystal display panel of FIG. 3.

Referring to FIG. 6, the first and second substrates 410 and 420 are bonded to each other so that one side short side and one side long side of the first substrate 410 protrude, and the first substrate 410 and the second substrate ( The image display unit 430 is illustrated in which a plurality of pixels are arranged in a matrix form within the bonded area of the 420.

The thin film transistor array substrate of the liquid crystal display panel is applied to the first substrate 410, and the color filter substrate is applied to the second substrate 420.

Accordingly, a plurality of data lines are arranged on the first substrate 410 of the image display unit 430 so as to be spaced apart from the plurality of gate lines and are arranged in a row. A plurality of pixels are defined for each crossing area of the data lines and arranged in a matrix form.

Each of the plurality of pixels includes a thin film transistor as a switching element and a pixel electrode connected to the thin film transistor.

The second substrate 420 of the image display unit 430 has red, green, and blue color filters separated and applied to each pixel by a black matrix, and the counter electrode of the pixel electrode formed on the first substrate 410. Phosphorus common electrode is provided.

The first substrate 410 and the second substrate 420 configured as described above are bonded by the sealant. At this time, a patterned-spacer is formed on the first substrate 410 or the second substrate 420 by randomly spreading spacer balls or a photolithography process, so that the liquid crystal is separated at a predetermined interval. A layer is formed.

A gate pad part 440 is formed at an area corresponding to the image display part 430 at one protruding short side of the first substrate 410 to supply driving signals to the gate lines, and to provide the first substrate 410. A data pad part 450 is formed in an area corresponding to the image display part 430 on one protruding long side of the to supply image information to the data lines.

A gate driver 460 electrically connected to one protruding short side of the first substrate 410 supplies driving signals to the gate pad part 440, and is electrically connected to one protruding long side of the first substrate 410. The data driver 470 connected to the apparatus supplies image information to the data pad unit 450.

The gate driver 460 is electrically connected to the gate tape carrier package 461 and the gate tape carrier package 461 that is electrically connected to the gate pad unit 440 of the first substrate 410. A gate printed circuit board 462 is configured to transmit driving signals to the unit 440.

The data driver 470 is electrically connected to the data tape carrier package 471 electrically connected to the data pad unit 450 of the first substrate 410 and the data tape carrier package 471. The data printed circuit board 472 transmits driving signals to the unit 450.

The data printed circuit board 472 is provided with a controller for processing image information, control signals and driving voltages. The controller is configured to control the control signals and the driving voltages to be supplied to the gate printed circuit board 462 as described above. Highly integrated and high performance controllers are applied for processing. Accordingly, the gate printed circuit board 462 may transmit the control signals and the driving voltages supplied from the data printed circuit board 472 through the gate tape carrier package 461 to the gate pad part of the first substrate 410. 440 has a simple function of passing.

First line-on-glass wirings 411 are mounted at corners where the protruding short side and the long side of the first substrate 410 meet, so that the data from the data printed circuit board 472 of the data driver 470 is fixed. The first driving signals supplied through the tape carrier package 471 are transmitted to the gate printed circuit board 462 of the gate driver 460.

In addition, second line-on-glass wiring lines 412 are mounted along edges of the other short side and the other long side of the first substrate 410 along the edge of the image display unit 430 to print data of the data driver 470. The second driving signals supplied from the circuit board 472 through the data tape carrier package 471 are transmitted to the gate printed circuit board 462 of the gate driver 460.

The first line-on-glass wirings 411 have a relatively low resistance value because the first line-on-glass wirings 411 are very short in length compared to the second line-on-glass wirings 412.

Therefore, the DC signal which is highly influenced by the resistance value and sensitive to signal distortion is transmitted to the first driving signals through the first line-on-glass wiring 411, and is relatively less affected by the resistance value. Preferably, the AC signals insensitive to signal distortion are transmitted as second driving signals through the second line-on-glass wirings 412.

DC signals such as a gate high voltage Vgh, a gate low voltage Vgl, a common voltage Vcom, a ground voltage GND, and a power supply voltage Vcc may be applied to the first driving signals. For example, AC signals such as a gate start pulse GSP, a gate shift clock GSC, and a gate enable signal GOE may be applied.

As described above, the liquid crystal display according to the present invention, in which a driving unit is connected to a line-on-glass type liquid crystal display panel, is provided at a corner portion where one short side and one long side of the first substrate 410, that is, the thin film transistor array substrate meet. Patterning the first line-on-glass wirings 411 to print DC signals supplied from the data printed circuit board 472 of the data driver 470 through the data tape carrier package 471 to the data of the gate driver 460. Transmission to the circuit board 462.

Further, the second line-on-glass wiring 412 is patterned along the edges of the image display unit 430 on the other side and the other side of the first substrate 410, that is, the thin film transistor array substrate. The AC signals supplied from the data printed circuit board 472 through the data tape carrier package 471 are transmitted to the data printed circuit board 462 of the gate driver 460.

Therefore, the number of the first line-on-glass wirings 411 patterned in the limited space of the corner portion where one short side and one long side of the thin film transistor array substrate meet can be reduced, and thus, the first line-on- By patterning the line widths of the glass wires 411 wide, the influence of the resistance value of the DC signals transmitted to the first driving signals may be minimized, and the spaced interval between the first line-on-glass wires 411 may be reduced. It is possible to prevent the signal distortion caused by adjacent wirings of the DC signals transmitted to the first driving signals by wide patterning.

As described above, the liquid crystal display panel according to the present invention, a method of manufacturing the same, and a liquid crystal display device having the same include: first line-on-glass wirings and second line-on-glass wiring in the outer dummy region of the thin film transistor array substrate. DC signals which are highly influenced by the resistance value and sensitive to signal distortion, and AC signals which are relatively less affected by the resistance value and insensitive to signal distortion are transmitted from the data driver to the gate driver.

Therefore, since the number of first line-on-glass wires patterned in the limited space of the corner portion where one short side and one long side of the thin film transistor array substrate meet is reduced, the number of first line-on-glass wires can be reduced. By widening the line width, the influence of the resistance value of the DC signals can be minimized, and the spaced intervals of the first line-on-glass wirings can be patterned widely to prevent signal distortion by adjacent wirings of the DC signals. It becomes possible.

As described above, by preventing the delay and the signal distortion of the driving signals transmitted from the data driver to the gate driver, it is possible to suppress the occurrence of cross-talk or flicker in the image displayed by the liquid crystal display, thereby improving image quality. There is.

Claims (17)

A second substrate bonded to the first substrate to protrude one short side and one long side of the first substrate; An image display unit in which a plurality of pixels are arranged in a bonded region of the first substrate and the second substrate; A gate pad part formed at one protruding short side of the first substrate to supply driving signals to the pixels; A data pad part formed on one protruding long side of the first substrate to supply image information to the pixels; First line-on-glass wirings mounted on an edge region of the first substrate where one protruding short side and one long side of the first substrate meet each other to transmit first driving signals; And second line-on-glass wires mounted on the first substrate along edges of the image display part of the other short side and the other long side of the first substrate to transmit second driving signals. panel. The liquid crystal display panel according to claim 1, wherein a liquid crystal layer is interposed between the bonded first substrate and the second substrate. The liquid crystal display panel of claim 1, wherein the first driving signals are direct current signals. The DC driving signal of claim 1, wherein the first driving signals include a gate high voltage Vgh, a gate low voltage Vgl, a common voltage Vcom, a ground voltage GND, and a power supply voltage Vcc. At least one liquid crystal display panel. The liquid crystal display panel of claim 1, wherein the second driving signals are alternating current signals. The liquid crystal display panel of claim 1, wherein the second driving signals are at least one of an AC signal including a gate start pulse GSP, a gate shift clock GSC, and a gate enable signal GOE. . The conductive material is formed on the upper surface of the first substrate and then patterned to form gate lines and gate electrodes in the image display area, and the first line-on-glass is formed around the edge where one short side and one long side of the image display area meet. Forming wirings and forming second line-on-glass wirings along the other short side and the other long side edge of the image display area; A gate insulating film, an active layer, and a source / drain electrode are sequentially formed on an upper surface of the resultant to form a thin film transistor provided in the unit pixels of the image display area, and a data line is formed in the image display area together with a source / drain electrode. Simultaneously patterning them; Forming a drain contact hole by forming a passivation layer on an upper surface of the resultant and then selectively etching a portion of the drain electrode of the thin film transistor to expose the drain electrode; And forming a transparent conductive material on the upper surface of the passivation layer and patterning the same to form a pixel electrode electrically connected to the drain electrode through the drain contact hole and provided in the unit pixels of the image display area. The manufacturing method of the liquid crystal display panel characterized by the above-mentioned. The method of claim 7, wherein the first line-on-glass wirings and the second line-on-glass wirings are formed of AlNd material. Forming a conductive material on the upper surface of the first substrate and then patterning the gate lines and the gate electrodes in the image display area; A gate insulating film, an active layer, and a source / drain electrode are sequentially formed on an upper surface of the resultant to form a thin film transistor provided in the unit pixels of the image display area, and a data line is formed in the image display area together with a source / drain electrode. Simultaneously patterning the first line-on-glass wires on the edges where one short side and one long side of the image display area meet, and second line-on along the other short side and the other long side edge of the image display area. Patterning the glass wirings; Forming a drain contact hole by forming a passivation layer on an upper surface of the resultant and then selectively etching a portion of the drain electrode of the thin film transistor to expose the drain electrode; And forming a transparent conductive material on the upper surface of the passivation layer, patterning the same, and electrically connecting the drain electrode through the drain contact hole to form a pixel electrode provided in the unit pixels of the image display area. The manufacturing method of the liquid crystal display panel characterized by the above-mentioned. The method of claim 9, wherein the first line-on-glass wirings and the second line-on-glass wirings are formed of Cr or Mo material. A second substrate bonded to the first substrate to protrude one short side and one long side of the first substrate; An image display unit in which gate lines and data lines cross each other in the bonded area of the first substrate and the second substrate, and a plurality of pixels formed at each crossing area; A gate pad portion formed on one protruding short side of the first substrate and connected to the gate lines; A data pad part formed on one protruding long side of the first substrate and connected to the data lines; A gate driver supplying driving signals to the gate pad part to drive the gate lines; A data driver supplying driving signals to the data pad part to drive the data lines; First line-on-glass interconnections mounted on corner portions of the first substrate where one protruding short side and one long side of the first substrate meet each other to transmit first driving signals from the data driver to the gate driver; Second line-on-glass wirings mounted on a first substrate along edges of the image display part of the other short side and the other long side of the first substrate to transmit second driving signals from the data driver to the gate driver; A liquid crystal display device, characterized in that. The gate print carrier of claim 11, wherein the gate driver is electrically connected to the gate pad part of the first substrate, and the gate printing is electrically connected to the gate tape carrier package to transmit driving signals to the gate pad part. A liquid crystal display device comprising a circuit board. 12. The method of claim 11, wherein the data driver is a data tape carrier package electrically connected to the data pad portion of the first substrate, and the data printing is electrically connected to the data tape carrier package to transmit the drive signals to the data pad portion A liquid crystal display device comprising a circuit board. The liquid crystal display panel of claim 11, wherein the first driving signals are direct current signals. The method of claim 11, wherein the first driving signals are selected from among DC signals including a gate high voltage Vgh, a gate low voltage Vgl, a common voltage Vcom, a ground voltage GND, and a power supply voltage Vcc. At least one liquid crystal display panel. The liquid crystal display panel of claim 11, wherein the second driving signals are alternating current signals. The liquid crystal display panel of claim 11, wherein the second driving signals are at least one of an AC signal including a gate start pulse GSP, a gate shift clock GSC, and a gate enable signal GOE. .