KR102271454B1 - Liquid crystal display device - Google Patents

Abstract

The present invention relates to a liquid crystal display, and more particularly, to a liquid crystal display in which pixels connected to both sides of each of the data lines are driven in a zigzag form along each of the data lines by at least two controllers. To provide is a technical task.

Description

Liquid crystal display device {LIQUID CRYSTAL DISPLAY DEVICE}

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device using a Z-inversion method.

In order to prevent deterioration of liquid crystal and improve display quality, the liquid crystal display drives the panel in an inversion method. The inversion method means periodically changing the voltage difference across the liquid crystal.

Examples of the inversion method include a Frame Inversion System, a Line Inversion System, a Column Inversion System, a Dot Inversion System, or a Z-inversion ( Z-Inversion System) method is used.

1 is an exemplary view showing the configuration of a conventional liquid crystal display using a Z-inversion method.

The liquid crystal display includes a liquid crystal panel, a data driver supplying data voltages to data lines formed in the liquid crystal panel, a gate driver sequentially supplying scan pulses to gate lines formed in the liquid crystal panel, and controlling the data driver and the gate driver It includes a timing controller for

In the liquid crystal panel of the liquid crystal display using the Z-inversion method among the inversion methods described above, the pixels P connected to the data line are, as shown in FIG. 1 , the data line It is alternately placed on the left and right along (DL).

The data driver and the timing controller may be formed as one integrated circuit (IC). Hereinafter, the integrated circuit (IC) in which the data driver and the timing controller are integrated will be simply referred to as a controller 40 .

As the liquid crystal panel 10 becomes high-definition, in the liquid crystal display device, at least two control units 40 are required. 1 shows a liquid crystal display including the two control units 40 .

In the liquid crystal display device using the Z-inversion method and having the two control units 40 , as shown in FIG. 1 , pixels A (hereinafter referred to as “pixels A”) at the boundary between the two control units 40 . , simply referred to as 'boundary pixels') are alternately connected to the two control units 40 .

Accordingly, the two control units should alternately output data voltages to the boundary pixels A.

All images output to the data lines by an external system (not shown) for driving an imaging device equipped with the liquid crystal display device, for example, a monitor, to each of the two control units 40 . When data is transmitted, each of the two control units 40 may convert only necessary image data into a data voltage and output the converted image data to the data lines. In this case, the two control units may alternately output data voltages to the boundary pixels A. However, if the number of data lines is increased, it is difficult for the control unit 40 to be configured as described above.

Accordingly, a point-to-point method in which only image data to be output to the data lines connected to the control unit 40 is transmitted from the external system to the control unit 40 is used.

However, as shown in FIG. 1 , in the display device using the Z-inversion method, in order to apply the point-to-point method, the external system reconstructs image data to be output to the boundary pixels A, , must be transmitted to the two control units.

Accordingly, the point-to-point method can be applied only when the structure of the external system as well as the structure of the control unit 40 must be newly developed.

In addition, in order for the control unit to which the last data line is connected to supply data voltages to all of the pixels B (hereinafter, simply referred to as 'end pixels') formed along the last data line, it is shown in FIG. 1 . As described above, one auxiliary data line (C) connected to the end pixels (B) should be further connected to the last control unit.

Accordingly, the two control units 40 shown in FIG. 1 should be manufactured in different shapes. In this case, since it is difficult for the two control units to be compatible, the manufacturing cost of the liquid crystal display may increase.

The present invention has been proposed to solve the above problems, and the pixels connected to both sides of each of the data lines are driven in a zigzag form along each of the data lines by at least two or more controllers, in a liquid crystal display. It is a technical task to provide a device.

A liquid crystal display device according to the present invention for achieving the above technical problem includes g gate lines, d data lines, and pixels, and among the data lines, nth (n is less than d) pixels connected to data lines are alternately arranged on the left and right sides along the n-th data line, and at least two auxiliary data lines connected only to pixels arranged on one side are arranged a liquid crystal panel; and k (k is a natural number greater than 2) control units outputting data voltages to the data lines, wherein pixels arranged in a row along the data lines form a vertical line pixel group, and Line pixel groups are arranged on the liquid crystal panel along the data lines, and each of the control units includes one more m ports than the number of vertical line pixel groups including pixels driven by the control unit; The ports are connected to m−1 of the data lines and one auxiliary data line.

Another liquid crystal display device according to the present invention for achieving the above-described technical problem includes g gate lines, d data lines, and pixels, and among the data lines, nth (n is d) a natural number less than or equal to) a liquid crystal panel in which pixels connected to a data line are alternately arranged on left and right sides along the n-th data line; and k (k is a natural number greater than 2) control units outputting data voltages to the data lines, wherein pixels arranged in a row along the data lines form a vertical line pixel group, and Line pixel groups are arranged on the liquid crystal panel along the data lines, and each of the control units includes one more m ports than the number of vertical line pixel groups including pixels driven by the control unit; The ports are connected to the data lines, a first control unit and a second control unit of the control units are adjacent to each other, an auxiliary line connected to an m-th port of the first control unit, and a first control unit of the second control unit The auxiliary line connected to the port is connected to the boundary data line connected in a zigzag form to the pixels formed in the two adjacent vertical line pixel groups through the switching unit.

Another liquid crystal display device according to the present invention for achieving the above-described technical problem includes g gate lines, d data lines, and pixels, and among the data lines, nth (n is d) less than or equal to natural number) pixels connected to data lines are alternately arranged on the left and right along the n-th data line, and auxiliary data lines connected only to pixels arranged on one side are arranged. liquid crystal panel; and k (k is a natural number greater than 2) control units outputting data voltages to the data lines, wherein pixels arranged in a row along the data lines form a vertical line pixel group, and Line pixel groups are arranged on the liquid crystal panel along the data lines, and a k-th control unit connected to a last data line among the control units is configured to select the vertical line pixel groups including pixels driven by the k-th control unit. m ports, which is one more than the number, and the remaining control units other than the kth control unit include m-1 ports, and the ports of the kth control unit include m-1 number of the data lines and 1 number of ports. Image data received from an external system is transmitted and received between the control units connected to the auxiliary data lines and adjacent to each other among the control units.

According to the present invention, since the same type of control unit can be used, the manufacturing cost of the liquid crystal display can be reduced, and one control unit can be applied to various liquid crystal display devices.

Also, according to the present invention, even if the Z-inversion method is applied, there is no need to change the configuration of an external system for transmitting image data using the point-to-point method with at least two control units. Therefore, a design change for changing the external system is not required, and accordingly, the manufacturing cost can be reduced.

1 is an exemplary view showing the configuration of a conventional liquid crystal display using a Z-inversion method.
2 is an exemplary view showing the configuration of a liquid crystal display device according to a first embodiment of the present invention.
3 is an exemplary view showing the configuration of a liquid crystal display device according to a second embodiment of the present invention.
4 is an exemplary view showing the configuration of a liquid crystal display device according to a third embodiment of the present invention.
5 is an exemplary view showing the configuration of a liquid crystal display device according to a fourth embodiment of the present invention.

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

2 is an exemplary view showing the configuration of a liquid crystal display device according to a first embodiment of the present invention.

In the liquid crystal display according to the first embodiment of the present invention, g gate lines, d data lines, and pixels are disposed, and nth (n is a natural number less than or equal to d) among the data lines. ) A liquid crystal in which pixels connected to data lines are alternately arranged on the left and right along the n-th data line, and at least two auxiliary data lines connected only to pixels arranged on one side are arranged and a panel, k (k is a natural number greater than 2) control units outputting data voltages to the data lines, and a gate driver for sequentially supplying scan pulses to the g gate lines. In particular, in FIG. 1 , 2304 (= d = 1152 + 1152) data lines DL, two auxiliary data lines 310 and 320 , and two controllers 510 and 520 (k = 2) are shown. A liquid crystal display including a liquid crystal display is shown as a first embodiment of the present invention. Accordingly, a liquid crystal display according to a first embodiment of the present invention will be described below by taking the liquid crystal display having the configuration shown in FIG. 2 as an example. The gate driver is not shown in FIG. 2 .

First, the liquid crystal panel 100 includes pixels P arranged in each region defined by the intersection of the gate lines G1 to Gg) and the data lines DL arranged in the display region 110 . do.

A thin film transistor (TFT), a pixel electrode, and a common electrode are disposed in each of the pixels (P). The thin film transistor TFT is turned on according to the scan signal transmitted from the gate line, and supplies the data voltage transmitted from the data line DL to the pixel electrode. As the light transmittance of the liquid crystal is adjusted by the voltage applied to the pixel electrode and the common electrode, an image is output through the liquid crystal panel 100 .

In particular, pixels formed of the thin film transistor and the pixel electrode connected to one data line are alternately formed on the left and right sides along the data line DL. In this case, the pixels are arranged in a zigzag form on the left and right sides of the data line based on one data line.

For example, in FIG. 2, pixels formed on odd-numbered horizontal lines 1H, 3H, ... are connected to data lines formed on the left side of the pixels. In FIG. 2, pixels formed on even-numbered horizontal lines 2H, 4H, ... are connected to data lines formed on the right side of the pixels.

Accordingly, the pixels of the odd-numbered horizontal line are charged by receiving the data voltage transmitted from the data line DL adjacent to the left through the thin film transistor TFT. On the other hand, the pixels of the even-numbered horizontal line are charged by receiving the data voltage transmitted from the data line adjacent to the right through the thin film transistor.

Pixels formed in a row along the data line DL form a vertical line pixel group PG. A plurality of the vertical line pixel groups PG are formed along the data lines in the liquid crystal panel 100 . In the liquid crystal panel 100 of the liquid crystal display shown in FIG. 2 , 2304 pixel groups PG are formed.

Second, the gate driver (not shown) shifts a Gate Start Pulse (GSP) transmitted from any one of the controllers 510 and 520 according to a Gate Shift Clock (GSC), A scan pulse having a gate-on voltage is sequentially supplied to the gate lines.

The gate driver supplies a gate-off voltage to the gate lines during the remaining period in which the scan pulse having the gate-on voltage is not supplied.

In the above description, the gate driver has been described as being configured independently of the control unit, but it may be configured in any one of the control units.

In addition, the gate driver may be formed as an integrated circuit and mounted on the liquid crystal panel 100 , or may be formed directly in a non-display area of the liquid crystal panel 100 .

Third, each of the controllers 510 and 520 receives timing signals such as a data enable signal (DE) and a dot clock (CLK) from the external system 900 and controls the gate driver 200 . A gate control signal GCS for controlling the operation timing is generated. The external system 900 drives an imaging device to which the display device according to the present invention is applied. The imaging device may be a TV, a monitor, a smart phone, a tablet PC, or the like.

In addition, each of the controllers 510 and 520 rearranges the input image data input from the external system 900 , converts the rearranged image data into data voltages, and then converts the data voltages to the data lines. and output to the auxiliary data lines.

To this end, each of the control units 510 and 520 includes a generation unit 420 , an output unit 410 , and a communication unit 430 .

First, the communication unit 430 communicates with the external system 900 to receive the timing signals and the input image data.

Next, the generator 420 generates the gate control signal GCS. The generator 420 may generate a data control signal necessary for the output unit.

In this case, the generator 420 is formed in both of the controllers. However, the gate control signal may be generated from one of the two control units and transmitted to the gate driver. For example, when the communication unit 430 of the first control unit 510 among the two control units receives the timing signals from the external system 900 , the generation formed in the first control unit 510 . The unit 420 may generate the gate control signal and transmit it to the gate driver.

However, the timing signals may be transmitted to both of the control units. In this case, the two control units may be connected to different gate lines to supply the scan pulses to the gate lines.

Finally, the output unit 410 rearranges the input image data input from the communication unit 430 according to the structure of the pixels formed in the liquid crystal panel 100 . The output unit converts the rearranged image data into data voltages, and then supplies data voltages corresponding to one horizontal line to the data lines DL for each horizontal period in which a scan pulse is supplied to the gate line. That is, the data driver 300 converts the image data into data voltages using gamma voltages supplied from a gamma voltage generator (not shown), and outputs the image data to the data lines.

To this end, the data driver 300 may include a shift register unit, a latch unit, a digital-to-analog converter, an output buffer, and the like.

Hereinafter, the characteristics of the display device according to the first embodiment of the present invention will be described in detail.

First, each of the controllers 510 and 520 includes one more m ports than the number of vertical line pixel groups PGs including pixels driven by the controller.

For example, in the liquid crystal panel 100 shown in FIG. 2 , 2304 vertical line pixel groups PG are formed, and the first control unit 510 controls 1152 vertical line pixel groups PG. Data voltages are supplied to included pixels P, and the second control unit 520 supplies data voltages to pixels P included in 1152 vertical line pixel groups PG. .

Accordingly, the number of vertical line pixel groups PG including pixels driven by each of the first control unit 510 and the second control unit 520 is 1152 (=m-1), and the first 1153 (=m) ports #1 to #1153 are formed in each of the control unit 510 and the second control unit 520 .

Second, the ports are connected to m−1 of the data lines DL and one auxiliary data line 310 .

For example, in the liquid crystal panel 100 shown in FIG. 2 , 1153 (=m) ports formed in the first control unit 510 include 1152 (=m-1) data lines ( DL) and one auxiliary data line 310 . In addition, 1153 (=m) ports formed in the second control unit 520 are connected to 1152 (=m-1) data lines DL and one auxiliary data line 310 . have.

Third, among the m ports, the m-1 th data line DL connected to the m-1 th port and the auxiliary data line 310 or 320 connected to the m th port are one vertical line pixel group PG. ) is formed on both sides of the vertical line and is connected to the pixel group.

For example, 1153 (=m) ports are formed in the first controller 510 illustrated in FIG. 2 , and 1152 (=m−1) ports are 1152 data lines DLs. is connected with In particular, the 1152 (= m-1) data line DL connected to the 1152 (= m-1) port #1152 and the auxiliary data line 310 connected to the 1153 port #1153, It is formed on both sides of the 1152th vertical line pixel group 1152PG, and is connected to the 1152th vertical line pixel group 1152PG in a zigzag shape.

The 1152 th data line and the auxiliary data line 320 connected to the second control unit 520 have the same structure as described above, and are connected to the 1152 th vertical line pixel group 1152PG.

Fourth, each of the controllers 510 and 520 transmits input image data to be transmitted from the external system 900 to the m−1 data lines DL and one auxiliary data line 310 , 320 . , converts the input image data into the data voltages, and outputs the converted image data through the ports.

For example, the first control unit 510 receives only the input image data to be transmitted to the 1152 data lines and the auxiliary data line 310 formed on the left side of the liquid crystal panel 100 and receives the The data voltages are output, and the second controller 520 receives only the input image data to be transmitted to the 1152 data lines and the auxiliary data line 320 formed on the right side of the liquid crystal panel 100 . Thus, the data voltages are output.

Fifth, each of the controllers 510 and 520 drives pixels formed on the left and right sides of one data line in a zigzag pattern.

For example, as shown in FIG. 2 , a pixel formed on the right side of one data line and formed on an odd-numbered horizontal line during the first horizontal period is driven. During the second horizontal period, pixels formed on an even-numbered horizontal line formed below the odd-numbered horizontal line on which the pixels driven in the first horizontal period are formed are driven. During the third horizontal period, pixels formed on the odd-numbered horizontal line formed below the even-numbered horizontal line on which the pixels driven in the second horizontal period are formed are driven. In this case, in each horizontal period, the polarity of the data voltage is the same. However, polarities of data voltages supplied to adjacent data lines are different from each other. Also, when the frame is changed, the polarity of the data voltage supplied to each data line is changed.

By the method as described above, the pixels formed in the liquid crystal panel may be recognized as being driven in a zigzag form based on one data line as shown in FIG. 2 .

Sixth, the pixels formed in the pixel group of the vertical line connected to the m-1 th data line and the auxiliary data line have data voltages transmitted through the m-1 th data line and the auxiliary data line. are sequentially driven by

For example, the 1152 data line connected to the 1152 port #1152 of the first control unit 510 and the auxiliary data line 310 connected to the 1153 port #1153 of the first control unit 510 ), the pixels formed in the 1152th vertical line pixel group 1152PG are sequentially driven by the data voltages transmitted through the 1152th data line and the auxiliary data line 310 . .

In this case, among the pixels formed in the 1152-th vertical line pixel group 1152PG, pixels formed on an odd-numbered horizontal line are sequentially driven by the data voltages supplied to the 1152-th data line, and the even-numbered pixels are sequentially driven. Pixels formed on the horizontal line are sequentially driven by data voltages transmitted through the auxiliary data line 310 . In this case, the pixels formed on the odd-numbered horizontal lines and the pixels formed on the even-numbered horizontal lines are alternately driven.

The second control unit 520 also drives the pixels in the same manner as described above.

Seventh, among the vertical line pixel groups PG, between two vertical line pixel groups adjacent to each other and receiving the data voltages from two different control units, a first control unit of the control units An auxiliary data line connected to the driven vertical line pixel group and a data line connected to the vertical line pixel group driven by a second control unit among the control units are formed.

For example, in FIG. 2 , a 1152 th vertical line pixel group 1152PG connected to the auxiliary data line 310 connected to the 1153 port #1153 of the first control unit 510, and the second control unit The auxiliary data line 310 and the data line are formed between the data line connected to the first port #1 of the 520 and the first vertical line pixel group connected to each other.

In this case, the auxiliary data line 310 is connected to the 1152th vertical line pixel group 1152PG together with the 1152th data line.

In addition, the data line connected to the first port #1 of the first control unit 510 and the data line connected to the first port #1 of the second control unit 520 are different from each other. Unlike the lines, only pixels formed on odd-numbered horizontal lines are connected. In detail, each of the data lines other than the data lines connected to the first port #1 is alternately connected to pixels formed on the left and right sides of the data line. However, the data lines connected to the first port #1 are connected only to pixels formed on odd-numbered horizontal lines.

According to the display device according to the first embodiment of the present invention as described above, since the control units can be formed in the same shape, compatibility of the control unit can be improved, and the manufacturing cost of the liquid crystal display device can be reduced. can

In addition, according to the display device according to the first embodiment of the present invention, the structure of the external system 900 does not need to be changed. Accordingly, development for changing the structure of the external system 900 is not required, and accordingly, the manufacturing cost of the display device can be reduced.

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

In the liquid crystal display according to the second embodiment of the present invention, pixels are disposed in each region where g gate lines and d data lines intersect, and among the data lines, nth (n is less than or equal to d) natural number) pixels connected to data lines are alternately arranged on the left and right sides along the n-th data line, and at least two auxiliary data lines connected only to pixels arranged on one side are arranged. and a liquid crystal panel, k (k is a natural number greater than 2) control units outputting data voltages to the data lines, and a gate driver for sequentially supplying scan pulses to the g gate lines. In particular, in FIG. 3 , 2304 (= d = 1152 + 1152) data lines DL, two auxiliary data lines 310 and 320, and two control units 510 and 520 (k = 2) are shown. A liquid crystal display including a liquid crystal display is shown as a second embodiment of the present invention.

The liquid crystal display device according to the second embodiment of the present invention performs the same configuration and function as the liquid crystal display device according to the first embodiment of the present invention. Accordingly, a description of the configuration and function of the liquid crystal display according to the second embodiment of the present invention will be omitted.

However, in the liquid crystal display according to the second embodiment of the present invention, the auxiliary data line connected to the vertical line pixel group driven by the first control unit 510 and the auxiliary data line driven by the second control unit 520 . A width of the data line connected to the vertical line pixel group is smaller than a width of one data line formed between two vertical line pixel groups driven by the same control unit.

For example, as described with reference to FIG. 2 , in FIG. 3 , the 1152 vertical line pixel connected to the auxiliary data line 310 connected to the 1153 port #1153 of the first control unit 510 . Between the group 1152PG and the first vertical line pixel group connected to the first data line connected to the first port #1 of the second control unit 520, the auxiliary data line 310 and the second One data line DL1 is formed.

In this case, the width of the auxiliary data line 310 and the first data line DL is the width of one data line formed between the two vertical line pixel groups driven by the first control unit, and The width may be smaller than the width of one data line formed between the two vertical line pixel groups driven by the second control unit.

As described above, the reason why the widths of the auxiliary data line 310 and the first data line DL1 may be smaller than the widths of other data lines is that the auxiliary data line 310 and the first data line DL1 may be formed. This is because the line DL1 is connected only to pixels corresponding to 1/2 of the pixels connected to other data lines.

In more detail, the number of pixels connected to the auxiliary data line 310 and the first data line DL1 is only 1/2 of the number of pixels connected to other data lines. Accordingly, a load applied to the auxiliary data line 310 and the first data line DL1 is small.

Accordingly, even when the widths of the auxiliary data line 310 and the first data line DL1 are formed to be smaller than the widths of other data lines, the auxiliary data line 310 and the first data line DL1 are normally operated. can be driven

In addition, since widths of the auxiliary data line 310 and the first data line DL1 may be formed to be smaller than the widths of other data lines, the 1152th vertical line pixel group ( 1152 ) connected to the auxiliary data line 310 . 1152PG) and the first vertical line pixel group connected to the first data line, even when the auxiliary data line 310 and the first data line DL1 are formed, the aperture ratio of the liquid crystal panel 100 increases. it may not be

4 is an exemplary view showing the configuration of a liquid crystal display device according to a third embodiment of the present invention.

In the liquid crystal display according to the third embodiment of the present invention, pixels are formed in each region where g gate lines and d data lines intersect, and among the data lines, nth (n is less than or equal to d) A liquid crystal panel 100 in which pixels connected to a natural number) data line are alternately disposed on the left and right sides along the n-th data line, k (k is greater than 2) for outputting data voltages to the data lines a natural number) control units and a gate driver for sequentially supplying scan pulses to the g gate lines. In particular, in FIG. 4, 2304 (= d = 1152 + 1152) data lines DL, two auxiliary lines 330 and 340, and two controllers 510 and 520 (k = 2) are included. A liquid crystal display device according to a third embodiment of the present invention is shown.

The configuration and function of the liquid crystal display device according to the third embodiment of the present invention are the same as or similar to those of the liquid crystal display device according to the first embodiment of the present invention. Accordingly, among the configurations and functions of the liquid crystal display according to the third embodiment of the present invention, the same or similar configurations and functions as those of the liquid crystal display according to the first embodiment of the present invention are omitted or simply described. .

First, in the liquid crystal display according to the third embodiment of the present invention, pixels formed in a row along the data line form a vertical line pixel group PG, and the plurality of vertical line pixel groups PG are It is formed on the liquid crystal panel 100 along the data lines.

Second, each of the control units 510 and 520 includes one more m ports than the number of vertical line pixel groups including pixels driven by the control unit.

For example, in the liquid crystal panel 100 shown in FIG. 4 , 2304 vertical line pixel groups PG are formed, and the first control unit 510 controls 1152 vertical line pixel groups PG. Data voltages are supplied to included pixels P, and the second control unit 520 supplies data voltages to pixels P included in 1152 vertical line pixel groups PG. .

Accordingly, the number of vertical line pixel groups PG including pixels driven by each of the first control unit 510 and the second control unit 520 is 1152 (=m-1), and the first 1153 (=m) ports #1 to #1153 are formed in each of the control unit 510 and the second control unit 520 .

Third, the ports are connected to the data lines DL. In this case, the 1153 port of the first control unit 510 is connected to the data line through a first auxiliary line 330 , and the first port #1 of the second control unit 510 is The second auxiliary line 340 is connected to the data line.

Fourth, among the control units, the first control unit and the second control unit are adjacent to each other, and the auxiliary line connected to the m-th port of the first control unit and the auxiliary line connected to the first port of the second control unit are adjacent to each other. It is connected to the boundary data line X connected in a zigzag form with the pixels formed in the two vertical line pixel groups through the switching unit 600 .

For example, the first control unit 510 and the second control unit 520 are adjacent to each other.

The first auxiliary line 330 connected to the first port #1153 of the first control unit and the second auxiliary line 340 connected to the first port #1 of the second control unit 520 are adjacent to each other. The pixels formed in the two vertical line pixel groups PGa and PGb are connected to the boundary data line X formed in a zigzag shape through the switching unit 600 .

Fifth, in this case, the switching unit 600 is controlled according to a switching signal transmitted from the first control unit 510 or the second control unit 520 .

For example, the switching unit 600 may connect the first auxiliary line 330 to the boundary data line X when a first switching signal is transmitted from the first control unit 510 . Accordingly, the data voltage may be supplied to the pixels formed in the vertical line pixel group PGa formed on the left side of the boundary data line X.

The switching unit 600 may connect the second auxiliary line 340 to the boundary data line X when a second switching signal is transmitted from the first control unit 510 . Accordingly, the data voltage may be supplied to the pixels formed in the vertical line pixel group PGb formed on the right side of the boundary data line X.

By the driving method as described above, the pixels formed on the panel 100 may be driven in a zigzag shape as shown in FIG. 4 .

Sixth, a last control unit among the control units, for example, an m-1 th data line DL connected to an m-1 th port among the m ports formed in the second control unit 520 illustrated in FIG. 4 . and the auxiliary data line 320 connected to the mth port are respectively formed on both sides of one vertical line pixel group PG and are connected to the vertical line pixel group.

For example, 1153 (=m) ports are formed in the second control unit 520 illustrated in FIG. 4 , among which 1152 (=m−1) ports are 1152 data lines DLs. is connected with In particular, the 1152 (=m-1) data line DL connected to the 1152 (= m-1) port #1152 and the auxiliary data line 320 connected to the 1153 port #1153, It is formed on both sides of the 1152th vertical line pixel group 1152PG, respectively, and is connected to the 1152th vertical line pixel group 1152PG in a zigzag shape.

Seventh, a data line DL1 connected to a first port #1 among the m ports formed in a first control unit among the control units, for example, the first control unit 520 shown in FIG. 4 . is connected only to pixels formed on odd-numbered horizontal lines, unlike other data lines. In more detail, each of the data lines other than the data lines connected to the first port #1 of the first control unit 510 includes pixels formed on the left and right sides of the data line. are alternately connected. However, the data line connected to the first port #1 of the first controller 520 is connected only to pixels formed on odd-numbered horizontal lines.

According to the display device according to the third embodiment of the present invention as described above, since the control units can be formed in the same shape, compatibility of the control unit can be improved and the manufacturing cost of the liquid crystal display device can be reduced. can

In addition, according to the display device according to the third embodiment of the present invention, the structure of the external system 900 does not need to be changed. Accordingly, development for changing the structure of the external system 900 is not required, and accordingly, the manufacturing cost of the display device can be reduced.

In addition, according to the display device according to the third exemplary embodiment of the present invention, since the data lines having the same shape can be formed on the liquid crystal panel 200, the manufacturing process of the data lines and the pixel can be simplified. have.

Also, in the display device according to the third embodiment of the present invention, only one data line is disposed between the vertical line pixel groups. Accordingly, the aperture ratio can be increased.

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

In the liquid crystal display according to the fourth embodiment of the present invention, g gate lines G1 to Gg, d data lines DL1 to DLd, and pixels are disposed, and a second one of the data lines is provided. Pixels connected to n (n is a natural number less than or equal to d) data line are alternately arranged on the left and right along the n-th data line, and auxiliary data connected only to pixels arranged on one side The liquid crystal panel 110 on which the line 350 is disposed, k (k is a natural number greater than 2) control units 510 and 520 for outputting data voltages to the data lines, and the g gate lines. A gate driver for sequentially supplying scan pulses is included. In particular, in FIG. 5 , a liquid crystal display including 4608 (= d = 2304 + 2304) data lines DL, the auxiliary line 320, and two controllers 510 and 520 (k=2). 1 is shown as a fourth embodiment of the present invention.

The configuration and function of the liquid crystal display device according to the fourth embodiment of the present invention are similar to those of the liquid crystal display device according to the first to third embodiments of the present invention. Accordingly, among the configurations and functions of the liquid crystal display according to the fourth embodiment of the present invention, the configurations and functions similar to those of the liquid crystal display according to the first to third embodiments of the present invention are omitted or Briefly explained.

First, in the liquid crystal display according to the fourth embodiment of the present invention, pixels arranged in a row along the data line form a vertical line pixel group PG, and a plurality of the vertical line pixel groups form the data line It is disposed on the liquid crystal panel 100 along the DLs.

Second, the kth control unit connected to the last data line DLd among the control units 510 and 520 has one more m than the number of vertical line pixel groups including pixels driven by the kth control unit. includes ports.

For example, in FIG. 5 , the two control units 510 and 520 are shown. Therefore, k is 2. In this case, the second control unit 520 controls one more than the number (= 2304) of the vertical line pixel groups PG including pixels driven by the second control unit (k=2) 520 . It contains many 2305 (= m) ports.

Third, the remaining control units other than the k-th control unit include m-1 ports. For example, in FIG. 5 , the first control unit 510 includes 2304 (=2305-1) ports.

In this case, image data is transmitted/received between the first control unit 510 and the second control unit 520 as described in FIG. 5 and below. Transmission and reception of image data between the control units is performed through a separate communication port.

In more detail, the communication port may also be a port of the control unit. However, for convenience of description, m or m-1 ports mean ports connected to the data lines, and the communication port means a port for transmitting and receiving image data between the controllers.

Fourth, the ports of the k-th control unit are connected to m-1 number of the data lines and one auxiliary data line 350 .

For example, in FIG. 5 , the ports #1 to #2305 of the second controller are connected to 2304 data lines and the auxiliary data line 350 .

Fifth, image data received from an external system is transmitted/received between adjacent control units among the control units.

For example, in FIG. 5 , the first control unit 510 and the second control unit 520 are adjacent to each other. In this case, the first control unit 510 may control a portion of the image data to be transmitted to pixels included in the second 2304 pixel group 304PG(S) among the image data transmitted from the external system to the second control unit. 510.

The above characteristics will be described in more detail as follows.

Among the control units, a p-th control unit (p is a natural number less than k) receives image data to be transmitted to pixels included in the m-1th vertical line pixel group from the external system 900 .

For example, in FIG. 5 , the first control unit 510 receives image data to be transmitted to pixels included in a 2304 vertical line pixel group 2304PG(S) from the external system 900 .

The p-th control unit transmits image data to be transmitted to pixels connected to the m-1 th port of the p-th control unit among pixels included in the m-1 th vertical line pixel group, the m-1 th port and The image data to be transmitted through the connected m-1 th data line and to be transmitted to pixels connected to the first port of the p+1 th control unit among the pixels included in the m-1 th vertical line pixel group, The p+1 control unit transmits the image data received from the p-th control unit through a first data line connected to the first port.

For example, the first control unit 510 is connected to the 2304 port #2304 of the first control unit 510 among the pixels included in the 2304 vertical line pixel group 2304PG(S). Image data to be transmitted to the pixels is transmitted through a 2304 data line connected to the 2304 port, and among the pixels included in the 2304 vertical line pixel group 2304PG(S), the second control unit 520 ), the image data to be transmitted to the pixels connected to the first port is transmitted to the second control unit 520 . In this case, the second controller 520 transmits the image data received from the first controller 510 through a first data line connected to the first port.

In more detail, the first control unit 510 includes the 2304 vertical line pixel group 2304PG(S) including pixels connected to the 2304 port #2304 of the first control unit 510 . Receives image data to be transmitted from the external system 900 .

The first controller 510 is configured to transmit image data to be transmitted to odd-numbered pixels included in the 2304 vertical line pixel group 2304PG(S) among the image data. It transmits through the 2304 data line connected to the 2304 port (#2304).

Also, the first controller 510 is configured to transmit image data to be transmitted to even-numbered pixels included in the second 2304 vertical line pixel group 2304PG(S) among the image data. ) is sent to The second control unit 520 transmits the image data received from the first control unit 510 through a first data line connected to the first port #1 of the second control unit 520 , It is transmitted to the even-numbered pixels included in the 2304 vertical line pixel group 2304PG(S).

Sixth, the m-1 th data line connected to the m-1 th port and the auxiliary data line connected to the m th port among the m ports of the k th control unit are located on both sides of the m-1 th vertical line pixel group. respectively, and connected to the vertical line pixel group.

For example, in FIG. 5 , among the 2305 ports of the second control unit, a 2304 data line DLd connected to a 2304 port #2304 and the auxiliary data connected to a 2305 port #2305 The line 350 is disposed on both sides of the 2304 vertical line pixel group 2304PG(R), respectively, and is connected to the 2304 vertical line pixel group 2304PG(R). In particular, in FIG. 5 , the 2304 data line DLd is disposed on the left side of the 2304 vertical line pixel group 2304PG(R), and the auxiliary data line 350 is connected to the 2305 vertical line pixel group 2305 . 2304PG(R)).

Seventh, the k-th control unit receives image data to be transmitted to the pixels included in the m-1th vertical line pixel group from an external system, and among the pixels included in the m-1th vertical line pixel group, an odd number The image data to be transmitted to the m-1 th pixels (or even-numbered pixels) are transmitted through the m-1 th data line connected to the m-1 th port, and pixels included in the m-1 th vertical line pixel group. Among them, image data to be transmitted to even-numbered pixels (or odd-numbered pixels) are transmitted through the auxiliary data line connected to the m-th port.

For example, in FIG. 5 , the second control unit 520 receives image data to be transmitted to pixels included in a 2304 vertical line pixel group 2304PG(R) from an external system, and the second control unit 520 receives the 2304 vertical line pixel group 2304PG(R) from an external system. Among the pixels included in the line pixel group 2304PG(R), image data to be transmitted to odd-numbered pixels is transmitted through a 2304 data line connected to the 2304 port, and the 2304 vertical line pixel group ( Among the pixels included in the 2304PG(R), image data to be transmitted to even-numbered pixels is transmitted through the auxiliary data line 350 connected to the 2305 port #2305.

According to the display device according to the fourth embodiment of the present invention as described above, since the control units except for the kth control unit among the control units may be formed in the same shape, compatibility of the control unit may be improved, and the liquid crystal The manufacturing cost of the display device may be reduced.

In addition, according to the display device according to the fourth embodiment of the present invention, the structure of the external system 900 does not need to be changed. That is, the external system 900 may divide the image data to be output to the data lines according to the number of the controllers, and then transmit image data corresponding to the respective controllers to the respective controllers. . In detail, the external system 900 includes, as the first control unit 510 , a first vertical line pixel group to a second vertical line pixel group 2304PG(S) connected to the first control unit 510 . Only image data to be transmitted is transmitted to the pixels included in , and to the second control unit 520 , the first to second vertical line pixel groups 2304PG(R) connected to the second control unit 520 . )), only image data to be transmitted to the pixels included in the )). Accordingly, development for changing the structure of the external system 900 is not required, and accordingly, the manufacturing cost of the display device can be reduced.

In addition, according to the display device according to the fourth embodiment of the present invention, since the data lines having the same shape can be formed on the liquid crystal panel 200 , the manufacturing process of the data lines and the pixels can be simplified. have.

Also, in the display device according to the fourth embodiment of the present invention, only one data line is disposed between the vertical line pixel groups. Accordingly, the aperture ratio can be increased.

Those skilled in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: liquid crystal panel 510: control unit
900: external system

Claims (13)

g gate lines, d data lines, and pixels are disposed, and among the data lines, pixels connected to an n-th (n is a natural number less than or equal to d) data line are the n-th data lines. a liquid crystal panel which is alternately disposed on the left and right along the line, at least two auxiliary data lines connected only to pixels disposed on one side of the liquid crystal panel; and
and k (k is a natural number greater than 2) number of control units outputting data voltages to the data lines,
Pixels arranged in a row along the data line form a vertical line pixel group, and a plurality of the vertical line pixel groups are arranged on the liquid crystal panel along the data lines,
Each of the control units includes one more m ports than the number of vertical line pixel groups including pixels driven by the control unit,
The ports are connected to m-1 of the data lines and one auxiliary data line,
Among the vertical line pixel groups, between two vertical line pixel groups adjacent to each other and receiving the data voltages from the two different control units, the vertical line driven by the first control unit of the control units is located between the two vertical line pixel groups. An auxiliary data line connected to the line pixel group and a data line connected to a vertical line pixel group driven by a second control unit among the control units are disposed,
The width of the auxiliary data line connected to the vertical line pixel group driven by the first control unit and the data line connected to the vertical line pixel group driven by the second control unit is equal to the width of the two data lines driven by the same control unit. A liquid crystal display formed to be smaller than the width of one data line disposed between pixel groups of vertical lines. The method of claim 1,
Among the m ports, the m-1 th data line connected to the m-1 th port and the auxiliary data line connected to the m th port are respectively disposed on both sides of one vertical line pixel group to form the vertical line pixel group and the vertical line pixel group. connected liquid crystal display. The method of claim 1,
Each of the controllers receives input image data to be transmitted to the m-1 data lines and one auxiliary data line from an external system, and converts the input image data into the data voltages to connect the ports. A liquid crystal display that outputs through. The method of claim 1,
Each of the controllers drives the pixels disposed on the left and right sides of one data line in a zigzag manner. 3. The method of claim 2,
The pixels arranged in the pixel group of the vertical line connected to the m-1 th data line and the auxiliary data line are generated by data voltages transmitted through the m-1 th data line and the auxiliary data line. A liquid crystal display device driven sequentially. delete delete g gate lines, d data lines, and pixels are disposed, and among the data lines, pixels connected to an n-th (n is a natural number less than or equal to d) data line are the n-th data lines. a liquid crystal panel alternately arranged on the left and right along the ; and
and k (k is a natural number greater than 2) number of control units outputting data voltages to the data lines,
Pixels arranged in a row along the data line form a vertical line pixel group, and a plurality of the vertical line pixel groups are arranged on the liquid crystal panel along the data lines,
Each of the control units includes one more m ports than the number of vertical line pixel groups including pixels driven by the control unit,
The ports are connected to the data lines,
Among the control units, the first control unit and the second control unit are adjacent to each other,
The auxiliary line connected to the m-th port of the first control unit and the auxiliary line connected to the first port of the second control unit are connected to the pixels formed in the two adjacent vertical line pixel groups in a zigzag pattern. A liquid crystal display device connected to the boundary data line through a switching unit. 9. The method of claim 8,
The switching unit may be controlled according to a switching signal transmitted from the first control unit or the second control unit. g gate lines, d data lines, and pixels are disposed, and among the data lines, pixels connected to an n-th (n is a natural number less than or equal to d) data line are the n-th data lines. a liquid crystal panel alternately disposed on the left and right along the line, and on which auxiliary data lines connected only to pixels disposed on one side are disposed; and
and k (k is a natural number greater than 2) number of control units outputting data voltages to the data lines,
Pixels arranged in a row along the data line form a vertical line pixel group, and a plurality of the vertical line pixel groups are arranged on the liquid crystal panel along the data lines,
The k-th control unit connected to the last data line among the control units includes one more m ports than the number of vertical line pixel groups including pixels driven by the k-th control unit,
The remaining control units other than the k-th control unit include m-1 ports,
The ports of the k-th control unit are connected to m-1 number of the data lines and one auxiliary data line,
Image data received from an external system is transmitted and received between adjacent control units among the control units;
The pth (p is a natural number smaller than k) control unit,
Receive image data to be transmitted to pixels included in the m-1th vertical line pixel group from an external system,
Among the pixels included in the m-1 th vertical line pixel group, image data to be transmitted to pixels connected to the m-1 th port of the p th control unit are selected as the m-1 th data connected to the m-1 th port. transmitted through the line,
Transmitting image data to be transmitted to pixels connected to the first port of the p+1th control unit among the pixels included in the m-1th vertical line pixel group to the p+1th control unit,
The p+1th control unit transmits the image data received from the pth control unit through a first data line connected to the first port. 11. The method of claim 10,
Among the m ports of the k-th control unit, the m-1 th data line connected to the m-1 th port and the auxiliary data line connected to the m th port are disposed on both sides of the m-1 th vertical line pixel group, respectively. a liquid crystal display device connected to the vertical line pixel group. delete 11. The method of claim 10,
The kth control unit,
Receive image data to be transmitted to the pixels included in the m-1th vertical line pixel group from an external system,
Image data to be transmitted to odd-numbered pixels (or even-numbered pixels) among the pixels included in the m-1th vertical line pixel group is transmitted through the m-1th data line connected to the m-1th port. send,
A liquid crystal display for transmitting image data to be transmitted to even-numbered pixels (or odd-numbered pixels) among pixels included in the m-1th vertical line pixel group through the auxiliary data line connected to the mth port .

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