KR20110014359A - Liquid crystal display device - Google Patents

Abstract

PURPOSE: A liquid crystal display device is provided to form a light source signal transmitting line on a glass substrate of a liquid crystal panel without a separate cable for connection between a light source operating unit and a connector in a LOG(Line On Glass) type. CONSTITUTION: A plurality of data tape carrier packages connects a non display part(100b) of a liquid crystal panel(100) with a source PCB(Printed Circuit Board). A light source printed circuit board includes a plurality of light sources and a connector. A connection part(111) connects the connector to the non display part. One end of a light source operating signal transmitting line is connected to a light source operating part(150) through a data tape carrier package or a source printed circuit board. The other end of the light source operating signal transmitting line is connected to the connection part.

Description

[0001] LIQUID CRYSTAL DISPLAY DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device. In particular, the light source driver and the connector formed on the light source printed circuit board are connected to each other using a light source signal transmission line formed in a line-on-glass method, thereby reducing manufacturing costs and being advantageous for thinning. It is about.

A conventional liquid crystal display device displays an image by adjusting the light transmittance of a liquid crystal using an electric field. To this end, the liquid crystal display includes a liquid crystal panel in which pixel regions are arranged in a matrix, and a driving circuit for driving the liquid crystal panel.

In the liquid crystal panel, a plurality of gate lines and a plurality of data lines are arranged to cross each other, and a pixel region is positioned in an area defined by vertical crossings of the gate lines and the data lines. Pixel electrodes and a common electrode for applying an electric field to each of the pixel regions are formed in the liquid crystal panel.

A light source for providing light to the liquid crystal panel is provided below the liquid crystal panel, and the light sources are connected to the light source driver through a separate cable. This cable not only looks bad, but also complicates the process of assembling the liquid crystal display device. In addition, there is a problem that the manufacturing cost increases due to the use of this cable.

The present invention has been made to solve the above problems, by reducing the manufacturing cost and thinning by connecting between the light source driver and the connector formed on the light source printed circuit board using a light source signal transmission line formed in a line on glass method. It is an object to provide an advantageous liquid crystal display device.

Liquid crystal display device according to the present invention for achieving the above object, the liquid crystal panel divided into a display portion and a non-display portion; A plurality of data tape carrier packages connecting the non-display portion of the liquid crystal panel and a source printed circuit board; A light source driver formed on the source printed circuit board to generate a light source driving signal; A data drive integrated circuit mounted on each data tape carrier package to drive data lines of the display unit; A light source printed circuit board having a plurality of light sources for supplying light to the liquid crystal panel and a connector for receiving and supplying the light source driving signals to the light sources; A connecting portion connecting the connector to the non-display portion; And a light source driving signal transmission line formed on the non-display unit, one end of which is connected to the light source driver through one of the data tape carrier package and the source printed circuit board, and the other end of which is connected to the connection unit. It features.

A first transmission line formed on the source printed circuit board; And a second transmission line formed in the one data tape carrier package; The first transmission line connects the light source driver and the second transmission line; The second transmission line is connected between the first transmission line and the light source driving signal transmission line.

The connection part may be any one of a flexible flat cable and a flexible printed circuit.

A plurality of gate tape carrier packages having one side connected to the non-display portion so as to overlap the light source driving signal transmission line; And a gate drive integrated circuit mounted on each gate tape carrier package to drive gate lines of the display unit.

And a built-in gate driver formed in the non-display portion to drive gate lines of the display portion.

In addition, the liquid crystal display device according to the present invention for achieving the above object, the liquid crystal panel divided into a display portion and a non-display portion; A plurality of data tape carrier packages connecting the non-display portion of the liquid crystal panel and a source printed circuit board; A light source driver formed on the source printed circuit board to generate a light source driving signal; A data drive integrated circuit mounted on each data tape carrier package to drive data lines of the display unit; A plurality of gate tape carrier packages connected to the non-display portion of the liquid crystal panel; A gate drive integrated circuit mounted on each gate tape carrier package to drive gate lines of the display unit; A light source printed circuit board having a plurality of light sources for supplying light to the liquid crystal panel and a connector for receiving and supplying the light source driving signals to the light sources; A connecting portion connecting the connector to the non-display portion; A first light source driving signal formed on the non-display part, one end of which is connected to the light source driver through one of the data tape carrier package and the source printed circuit board, and the other end of which is connected to the gate tape carrier package located on the uppermost side; Transmission line; A second light source driving signal transmission line formed in the non-display portion so as to be positioned between the adjacent gate tape carrier packages to connect the adjacent gate tape carrier packages; And a third light source driving signal transmission line formed in the non-display portion, one end of which is connected to the gate tape carrier package located at the lowermost side, and the other end of which is connected to the connection portion.

A first transmission line formed on the source printed circuit board; A second transmission line formed in the one data tape carrier package; And a third transmission line formed in each gate tape carrier package; The first transmission line connects the light source driver and the second transmission line; The second transmission line connects the first transmission line and the first light source driving signal transmission line; The third transmission line may connect adjacent light source driving signal transmission lines to each other.

A first transmission line formed on the source printed circuit board; A second transmission line formed in the one data tape carrier package; And third and fourth transmission lines formed in each gate tape carrier package; The first transmission line connects the optical source driver and the second transmission line; The second transmission line connects the first transmission line and the first light source driving signal transmission line; A pair of third and fourth transmission lines formed in one gate tape carrier package are connected to each other via a gate drive integrated circuit mounted in the gate tape carrier package; The pair of third and fourth transmission lines may connect light source drive signal transmission lines adjacent to each other.

Liquid crystal display device according to the present invention for achieving the above object, the liquid crystal panel divided into a display portion and a non-display portion; A plurality of data tape carrier packages connecting the non-display portion of the liquid crystal panel and a source printed circuit board; A light source driver formed on the source printed circuit board to generate a light source driving signal; A data drive integrated circuit mounted on each data tape carrier package to drive data lines of the display unit; A plurality of gate tape carrier packages connecting the non-display portion of the liquid crystal panel and the gate printed circuit board; A gate drive integrated circuit mounted on each gate tape carrier package to drive gate lines of the display unit; A light source printed circuit board having a plurality of light sources for supplying light to the liquid crystal panel and a connector for receiving and supplying the light source driving signals to the light sources; A connecting portion connecting the connector to the non-display portion; A first light source driving signal formed on the non-display part, one end of which is connected to the light source driver through one of the data tape carrier package and the source printed circuit board, and the other end of which is connected to the gate tape carrier package located on the uppermost side; Transmission line; And a second light source driving signal transmission line formed on the non-display portion, one end of which is connected to the gate tape carrier package located at the lowermost side, and the other end of which is connected to the connection portion.

A first transmission line formed on the source printed circuit board; A second transmission line formed in the one data tape carrier package; A third transmission line formed in the uppermost gate tape carrier package; A fourth transmission line formed in the lowermost gate tape carrier package; And a fifth transmission line formed on the gate printed circuit board; The first transmission line connects the light source driver and the second transmission line; The second transmission line connects the first transmission line and the first light source driving signal transmission line; The third transmission line connects the first light source driving signal transmission line and the fifth transmission line; The fourth transmission line is connected between the fifth transmission line and the second light source driving signal transmission line.

The liquid crystal display according to the present invention has the following effects.

In the present invention, a light source signal transmission line is formed on a glass substrate of a liquid crystal panel by using a line-on-glass method on the glass substrate of the liquid crystal panel, thereby reducing costs and making the liquid crystal display device thinner. It is advantageous.

First embodiment

FIG. 1 is a view showing a liquid crystal display device according to a first embodiment of the present invention, and FIG. 2 is a view showing a part of the liquid crystal display device from which the gate tape carrier package (G-TCP) of FIG. 1 is removed.

As shown in FIG. 1, the liquid crystal display according to the first embodiment of the present invention includes: a liquid crystal panel 100 divided into a display unit 100a and a non-display unit 100b; A plurality of data tape carrier packages (D-TCPs) for connecting the non-display unit (100b) of the liquid crystal panel (100) and the source printed circuit board (SP); A light source driver 150 formed on the source printed circuit board SP to generate a light source driver signal; A data drive integrated circuit (D-IC) mounted on each data tape carrier package (D-TCP) to drive data lines DL of the display unit 100a; A light source printed circuit board (LPCB) having a plurality of light sources (LEDs) for supplying light to the liquid crystal panel 100 and a connector (CNT) for receiving and supplying the light source driving signals to the light sources (LEDs). and; A connection part 111 connecting the connector CNT and the non-display part 100b; The non-display unit 100b is connected to the light source driver 150 through one data tape carrier package (D-TCP) and a source printed circuit board (SP). It includes a light source drive signal transmission line (LOG) connected to the connection portion 111. Herein, the connection part 111 may use any one of a flexible flat cable and a flexible printed circuit.

In addition, the liquid crystal display according to the first exemplary embodiment of the present invention includes a first transmission line L1 formed on the source printed circuit board SP and a first tape formed on one of the data tape carrier packages D-TCP. It further comprises two transmission lines (L2). Here, the second transmission line L2 is formed in the first data tape carrier package D-TCP located on the leftmost side of the data tape carrier packages D-TCP.

The first transmission line L1 connects the light source driver 150 and the second transmission line L2, and the second transmission line L2 connects the first transmission line L1 and the light source. Connect between drive signal transmission lines (LOG).

The light source driving signal transmission line LOG is formed on the non-display portion 100b of the liquid crystal panel 100 in a line on glass manner. Specifically, the liquid crystal panel 100 includes a first substrate on which a thin film transistor is formed and a second substrate on which a color filter is formed. The light source driving signal transmission line LOG is a non-display portion 100b of the first substrate. Line on glass). Therefore, the light source driving signal transmission line LOG may be formed simultaneously with the link lines LK and the gate lines GL. The link lines LK are formed from the gate link lines LK and the data drive integrated circuits D-IC which transmit gate signals from the gate drive integrated circuits G-IC to the gate lines GL. Are divided into data link lines LK which transmit data signals of the data lines to the data lines DL.

The light source driving signal transmission line LOG may be formed of the same material as the data line DL.

According to the first embodiment of the present invention, the light source driving signal from the light source driving unit 150 is the first transmission line (L1), the second transmission line (L2), the light source driving signal transmission line (LOG), the connecting portion 111 And via the connector CNT in turn to the light sources LEDs.

The light sources (LEDs) may be configured as light emitting diodes, and in particular, each of the light emitting diodes is configured as a package. That is, each light emitting diode is a white light emitting diode 150 that emits white light, and each light emitting diode 150 is packaged with various components for emitting white light in one package. .

On the other hand, a timing controller TC is formed on the source printed circuit board SP. The timing controller TC includes a horizontal synchronization signal Hsync, a vertical synchronization signal Vsync, and The data control signal and the gate control signal are generated using the clock signal CLK and supplied to the plurality of data drive integrated circuits D-IC and the plurality of gate drive integrated circuits G-IC. The data control signal DCS includes a dot clock, a source shift clock, a source enable signal, a polarity inversion signal, and the like. The gate control signal GCS includes a gate start pulse, a gate shift clock, a gate output enable, and the like.

The data drive integrated circuits (D-ICs) sample the data according to the data control signal from the timing controller TC, and then divide the sampled data into one line for each horizontal time (1H, 2H, ...). The latched and latched data are supplied to the data lines DL through the link lines LK. That is, the data drive integrated circuits D-IC convert the data from the timing controller TC into an analog pixel signal using the gamma voltage input from the gamma voltage generation unit and supply the data to the data lines DL.

The gate drive integrated circuit G-IC drives the liquid crystal cell by using a shift register which sequentially generates scan pulses in response to a gate start pulse among the gate control signals GCS from the timing controller TC, and a voltage of the scan pulses. And a level shifter for shifting to a voltage level suitable for. The gate drive integrated circuit G-IC outputs a gate high voltage corresponding to the high voltage of the scan pulse in response to a gate control signal, and the gate high voltage is applied to the gate lines GL through the link lines LK. To feed.

Second embodiment

3 illustrates a liquid crystal display according to a second exemplary embodiment of the present invention.

As shown in FIG. 3, the liquid crystal display according to the second exemplary embodiment of the present invention includes: a liquid crystal panel 100 divided into a display unit 100a and a non-display unit 100b; A plurality of data tape carrier packages (D-TCPs) connecting the non-display unit 100b of the liquid crystal panel 100 and the source printed circuit board SP; A light source driver 150 formed on the source printed circuit board SP to generate a light source driver signal; A data drive integrated circuit (D-IC) mounted on each data tape carrier package (D-TCP) to drive data lines DL of the display unit 100a; A plurality of gate tape carrier packages (G-TCPs) connected to the non-display unit (100b) of the liquid crystal panel (100); A gate drive integrated circuit (G-IC) mounted on each gate tape carrier package (G-TCP) to drive the gate lines (GL) of the display unit (100a); A light source printed circuit board (LPCB) having a plurality of light sources (LEDs) for supplying light to the liquid crystal panel 100 and a connector (CNT) for receiving and supplying the light source driving signals to the light sources (LEDs). and; A connection part 111 connecting the connector CNT and the non-display part 100b; It is formed in the non-display portion (100b), one end is connected to the light source driver 150 through one of the data tape carrier package (D-TCP) and the source printed circuit board (SP), the other end is the uppermost A first light source driving signal transmission line LOG1 connected to a gate tape carrier package G-TCP located in the first light source; A second light source driving signal transmission line LOG2 formed in the non-display unit 100b to be positioned between the gate tape carrier packages G-TCP adjacent to each other, and connecting the gate tape carrier packages G-TCP adjacent to each other; ; The third light source driving signal transmission line is formed on the non-display unit 100b and has one end connected to a gate tape carrier package (G-TCP) located at the lowermost end, and the other end connected to the connection unit 111. (LOG3). Herein, the connection part 111 may use any one of a flexible flat cable and a flexible printed circuit.

In addition, the liquid crystal display according to the second embodiment of the present invention includes a first transmission line (L1) formed on the source printed circuit board (SP); A second transmission line (L2) formed in the one data tape carrier package (D-TCP); The apparatus further includes a third transmission line L3 formed in each gate tape carrier package G-TCP. Here, the second transmission line L2 is formed in the first data tape carrier package D-TCP located on the leftmost side of the data tape carrier packages D-TCP.

A first transmission line (L1) connects between the light source driver (150) and the second transmission line (L2); The second transmission line (L2) connects the first transmission line (L1) and the first light source drive signal transmission line (LOG1); The third transmission line L3 connects light source driving signal transmission lines adjacent to each other.

According to the second embodiment of the present invention, the light source driving signal from the light source driving unit 150 is the first transmission line (L1), the second transmission line (L2), the first light source driving signal transmission line (LOG1), the first Third transmission line L3, first second light source driving signal transmission line LOG2, second third transmission line L3, second second light source driving signal transmission line LOG2, third third transmission line L3, the third light source driving signal transmission line LOG3, the connecting portion 111, and the connector CNT are sequentially supplied to the light sources LEDs.

In the second embodiment, the liquid crystal panel 100, the link line LK, the timing controller TC, the light source driver 150, the gate drive integrated circuit G-IC, the data drive integrated circuit D-IC, The light source LED and the light source printed circuit board LPCB are the same as those in the first embodiment.

Third Embodiment

4 is a view showing a liquid crystal display device according to a second embodiment of the present invention.

The liquid crystal display device according to the third embodiment of the present invention has a structure substantially similar to that of the liquid crystal display device of the second embodiment described above. However, the liquid crystal display according to the third embodiment of the present invention, as shown in Figure 4, the first transmission line (L1) formed on the source printed circuit board (SP); A second transmission line (L2) formed in the one data tape carrier package (D-TCP); And third and fourth transmission lines L3 and L4 formed in each gate tape carrier package G-TCP. The second transmission line L2 is formed in the first data tape carrier package (D-TCP) located at the leftmost side of the data tape carrier packages (D-TCP).

A first transmission line (L1) connects between the light source driver (150) and the second transmission line (L2); The second transmission line (L2) connects the first transmission line (L1) and the first light source drive signal transmission line (LOG1); The pair of third and fourth transmission lines L3 and L4 formed in one gate tape carrier package G-TCP are gate drive integrated circuits G-IC mounted in the gate tape carrier package G-TCP. Are connected to each other through; The pair of third and fourth transmission lines L3 and L4 connect between adjacent light source driving signal transmission lines.

According to the third embodiment of the present invention, the light source driving signal from the light source driving unit 150 is the first transmission line (L1), the second transmission line (L2), the first light source driving signal transmission line (LOG1), the first Third transmission line L3, first fourth transmission line L4, first second light source driving signal transmission line LOG2, second third transmission line L3, second fourth transmission line L4 The second second light source driving signal transmission line LOG2, the third third transmission line L3, the third fourth transmission line L4, the third light source driving signal transmission line LOG3, the connecting portion 111, and It is supplied to the light sources LED via the connector CNT in turn.

In the third embodiment, the liquid crystal panel 100, the link line LK, the timing controller TC, the light source driver 150, the gate drive integrated circuit G-IC, the data drive integrated circuit D-IC, The light source LED and the light source printed circuit board LPCB are the same as those in the first embodiment.

Fourth embodiment

5 is a view showing a liquid crystal display device according to a fourth embodiment of the present invention.

As shown in FIG. 5, the liquid crystal display according to the fourth embodiment of the present invention includes: a liquid crystal panel 100 divided into a display unit 100a and a non-display unit 100b; A plurality of data tape carrier packages (D-TCPs) for connecting the non-display unit (100b) of the liquid crystal panel (100) and the source printed circuit board (SP); A light source driver 150 formed on the source printed circuit board SP to generate a light source driver signal; A data drive integrated circuit (D-IC) mounted on each data tape carrier package (D-TCP) to drive data lines DL of the display unit 100a; A plurality of gate tape carrier packages (G-TCP) for connecting the non-display portion (100b) of the liquid crystal panel (100) and the gate printed circuit board; A gate drive integrated circuit (G-IC) mounted on each gate tape carrier package (G-TCP) to drive gate lines (GLs) of the display unit (100a); A light source printed circuit board (LPCB) having a plurality of light sources (LEDs) for supplying light to the liquid crystal panel 100 and a connector (CNT) for receiving and supplying the light source driving signals to the light sources (LEDs). and; A connection part 111 connecting the connector CNT and the non-display part 100b; It is formed in the non-display portion (100b), one end is connected to the light source driver 150 through one of the data tape carrier package (D-TCP) and the source printed circuit board (SP), the other end is the uppermost A first light source driving signal transmission line LOG1 connected to a gate tape carrier package G-TCP located in the first light source; The second light source driving signal transmission line is formed on the non-display unit 100b and has one end connected to a gate tape carrier package (G-TCP) located at the lowermost end, and the other end connected to the connection unit 111. (LOG2). Herein, the connection part 111 may use any one of a flexible flat cable and a flexible printed circuit.

In addition, the liquid crystal display according to the fourth embodiment of the present invention comprises: a first transmission line L1 formed on the source printed circuit board SP; A second transmission line (L2) formed in the one data tape carrier package (D-TCP); A third transmission line L3 formed on the uppermost gate tape carrier package G-TCP; A fourth transmission line L4 formed in the lowermost gate tape carrier package G-TCP; And a fifth transmission line L5 formed on the gate printed circuit board. Here, the second transmission line L2 is formed in the first data tape carrier package D-TCP located on the leftmost side of the data tape carrier packages D-TCP.

A first transmission line (L1) connects between the light source driver (150) and the second transmission line (L2); The second transmission line (L2) connects the first transmission line (L1) and the first light source drive signal transmission line (LOG1); The third transmission line L3 connects the first light source driving signal transmission line LOG1 and the fifth transmission line L5; The fourth transmission line L4 connects the fifth transmission line L5 and the second light source driving signal transmission line LOG2.

According to the fourth embodiment of the present invention, the light source driving signal from the light source driving unit 150 is the first transmission line (L1), the second transmission line (L2), the first light source driving signal transmission line (LOG1), the third The light source (LED) via the transmission line (L3), the fifth transmission line (L5), the fourth transmission line (L4), the second light source drive signal transmission line (LOG2), the connecting portion 111 and the connector (CNT) in turn. Are supplied.

In the third embodiment, the liquid crystal panel 100, the link line LK, the timing controller TC, the light source driver 150, the gate drive integrated circuit G-IC, the data drive integrated circuit D-IC, The light source LED and the light source printed circuit board LPCB are the same as those in the first embodiment.

Fifth Embodiment

6 illustrates a liquid crystal display according to a fifth exemplary embodiment of the present invention.

The liquid crystal display device according to the fifth embodiment of the present invention has a structure substantially similar to that of the liquid crystal display device of the first embodiment described above. However, the liquid crystal display according to the fifth exemplary embodiment of the present invention includes a plurality of gate drive integrated circuits (G-ICs) mounted on a plurality of gate tape carrier packages (G-TCP), as shown in FIG. 6. Instead, it includes an embedded gate driver GD formed in the non-display portion 100b of the liquid crystal panel 100. The built-in gate driver GD outputs scan pulses and supplies them to the gate lines GL through the link lines LK.

According to the fifth embodiment of the present invention, the light source driving signal from the light source driving unit 150 is the first transmission line (L1), the second transmission line (L2), the light source driving signal transmission line (LOG), the connecting portion 111 And via the connector CNT in turn to the light sources LEDs.

Meanwhile, the light source driving signal transmission line LOG, the first light source driving signal transmission line LOG1, the second light source driving signal transmission line LOG2, and the third light source driving signal transmission in the first to fifth embodiments described above. Each of the line LOG3, the first transmission line L1, the second transmission line L2, the third transmission line L3, and the fourth transmission line L4 may be configured in plural instead of one.

As such, in the present invention, a light source signal transmission line is formed on the glass substrate of the liquid crystal panel 100 in a line on glass manner without using a separate cable to connect the light source driver 150 and the connector CNT. It is advantageous to reduce the cost and to thin the liquid crystal display.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a view showing a liquid crystal display device according to a first embodiment of the present invention.

FIG. 2 is a view illustrating a portion of a liquid crystal display with the gate tape carrier package of FIG. 1 removed. FIG.

3 is a view showing a liquid crystal display device according to a second embodiment of the present invention.

4 illustrates a liquid crystal display according to a second embodiment of the present invention.

5 illustrates a liquid crystal display according to a fourth embodiment of the present invention.

6 illustrates a liquid crystal display according to a fifth embodiment of the present invention.

Claims (10)

A liquid crystal panel divided into a display unit and a non-display unit; A plurality of data tape carrier packages connecting the non-display portion of the liquid crystal panel and a source printed circuit board; A light source driver formed on the source printed circuit board to generate a light source driving signal; A data drive integrated circuit mounted on each data tape carrier package to drive data lines of the display unit; A light source printed circuit board having a plurality of light sources for supplying light to the liquid crystal panel and a connector for receiving and supplying the light source driving signals to the light sources; A connecting portion connecting the connector to the non-display portion; And, It is formed in the non-display portion, one end is connected to the light source driver via any one of the data tape carrier package and the source printed circuit board, the other end includes a light source driving signal transmission line connected to the connection portion Liquid crystal display device. The method of claim 1, A first transmission line formed on the source printed circuit board; And, A second transmission line formed in the one data tape carrier package; The first transmission line connects the light source driver and the second transmission line; And the second transmission line connects the first transmission line and the light source driving signal transmission line. The method of claim 1, And the connection part is any one of a flexible flat cable and a flexible printed circuit. The method of claim 1, A plurality of gate tape carrier packages having one side connected to the non-display portion so as to overlap the light source driving signal transmission line; And, And a gate drive integrated circuit mounted on each gate tape carrier package to drive gate lines of the display unit. The method of claim 1, And a built-in gate driver formed in the non-display portion to drive gate lines of the display portion. A liquid crystal panel divided into a display unit and a non-display unit; A plurality of data tape carrier packages connecting the non-display portion of the liquid crystal panel and a source printed circuit board; A light source driver formed on the source printed circuit board to generate a light source driving signal; A data drive integrated circuit mounted on each data tape carrier package to drive data lines of the display unit; A plurality of gate tape carrier packages connected to the non-display portion of the liquid crystal panel; A gate drive integrated circuit mounted on each gate tape carrier package to drive gate lines of the display unit; A light source printed circuit board having a plurality of light sources for supplying light to the liquid crystal panel and a connector for receiving and supplying the light source driving signals to the light sources; A connecting portion connecting the connector to the non-display portion; A first light source driving signal formed on the non-display part, one end of which is connected to the light source driver through one of the data tape carrier package and the source printed circuit board, and the other end of which is connected to the gate tape carrier package located on the uppermost side; Transmission line; A second light source driving signal transmission line formed in the non-display portion so as to be positioned between the adjacent gate tape carrier packages to connect the adjacent gate tape carrier packages; And, And a third light source driving signal transmission line formed on the non-display portion, the one end of which is connected to the gate tape carrier package located at the lowermost side, and the other end of which is connected to the connection portion. The method of claim 6, A first transmission line formed on the source printed circuit board; A second transmission line formed in the one data tape carrier package; And, A third transmission line formed in each gate tape carrier package; The first transmission line connects the light source driver and the second transmission line; The second transmission line connects the first transmission line and the first light source driving signal transmission line; And the third transmission line connects adjacent light source driving signal transmission lines to each other. The method of claim 6, A first transmission line formed on the source printed circuit board; A second transmission line formed in the one data tape carrier package; And, Further comprising third and fourth transmission lines formed in each gate tape carrier package; The first transmission line connects the light source driver and the second transmission line; The second transmission line connects the first transmission line and the first light source driving signal transmission line; A pair of third and fourth transmission lines formed in one gate tape carrier package are connected to each other via a gate drive integrated circuit mounted in the gate tape carrier package; And the pair of third and fourth transmission lines connect adjacent light source driving signal transmission lines to each other. A liquid crystal panel divided into a display unit and a non-display unit; A plurality of data tape carrier packages connecting the non-display portion of the liquid crystal panel and a source printed circuit board; A light source driver formed on the source printed circuit board to generate a light source driving signal; A data drive integrated circuit mounted on each data tape carrier package to drive data lines of the display unit; A plurality of gate tape carrier packages connecting the non-display portion of the liquid crystal panel and the gate printed circuit board; A gate drive integrated circuit mounted on each gate tape carrier package to drive gate lines of the display unit; A light source printed circuit board having a plurality of light sources for supplying light to the liquid crystal panel and a connector for receiving and supplying the light source driving signals to the light sources; A connecting portion connecting the connector to the non-display portion; A first light source driving signal formed on the non-display part, one end of which is connected to the light source driver through one of the data tape carrier package and the source printed circuit board, and the other end of which is connected to the gate tape carrier package located on the uppermost side; Transmission line; And, And a second light source driving signal transmission line formed on the non-display portion, the one end of which is connected to the gate tape carrier package located at the lowermost side, and the other end of which is connected to the connection portion. The method of claim 9, A first transmission line formed on the source printed circuit board; A second transmission line formed in the one data tape carrier package; A third transmission line formed in the uppermost gate tape carrier package; A fourth transmission line formed in the lowermost gate tape carrier package; And, A fifth transmission line formed on the gate printed circuit board; The first transmission line connects the light source driver and the second transmission line; The second transmission line connects the first transmission line and the first light source driving signal transmission line; The third transmission line connects the first light source driving signal transmission line and the fifth transmission line; And the fourth transmission line connects the fifth transmission line and the second light source driving signal transmission line.

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