KR102456942B1 - Display Device And Division Scanning Method Thereof - Google Patents

Abstract

The present invention relates to a display device and a divided driving method thereof, wherein pixel areas adjacent to upper and lower sides of a boundary are alternately connected to first and second data lines to form a boundary line in a zigzag rather than a straight line, or to form a first line at a specific point in time. and the second data lines are connected to each other so that the same data signal is applied to the pixel areas adjacent to the upper and lower sides of the boundary, or a switch is connected between the upper and lower pixel areas of the boundary to provide data signals of the first and second data lines. By making the average value of ? is applied to the upper and lower pixel regions adjacent to the boundary, discontinuity or DIM phenomenon due to process deviation and component deviation of the upper and lower data driver is alleviated.

Description

Display device and division driving method thereof {Display Device And Division Scanning Method Thereof}

The present invention relates to a display device and a divided driving method thereof, and more particularly, to a display device in which discontinuous image quality near a boundary is improved during divided driving of a high-resolution, large-area display panel, and a divided driving method thereof.

The display device has rapidly changed to a thin, light, and large-area flat panel display device (FPD) replacing a bulky cathode ray tube (CRT).

Flat panel displays include liquid crystal display devices (LCDs), plasma display panels (PDPs), organic light emitting diode displays (OLEDs), and electrophoretic displays. Display Device: EPD) and the like.

Among them, the liquid crystal display displays an image by controlling the electric field applied to the liquid crystal molecules according to the data voltage. The active matrix type liquid crystal display is the most widely used by being applied to almost all display devices from small mobile devices to large TVs as the price is lowered and the performance is improved thanks to the development of process technology and driving technology.

However, as the display device becomes higher resolution and larger in area, it is difficult to drive the display panel with one driving unit.

1 is a diagram for explaining a conventional method of dividing a display device.

As shown in FIG. 1 , the display device includes a display panel 10 , first and second gate drivers 20 and 30 , and first and second data drivers 40 and 50 .

The display panel 10 displays an image using a gate signal and a data signal. For this purpose, the display panel 10 includes first and second gate lines 90 and 100 , and first and second data lines 60 , 70) and a thin film transistor (not shown).

The first and second gate lines 90 and 100 and the first and second data lines 60 and 70 intersect each other to define a pixel region 80 , and each pixel region 80 includes the first and second data lines 60 and 70 . It includes a thin film transistor connected to the gate lines 90 and 100 and the first and second data lines 60 and 70 , and a pixel electrode (not shown) connected to the thin film transistor.

The first and second gate drivers 20 and 30 generate gate signals and supply them to the first and second gate wires 90 and 100 of the display panel 10, respectively, and the first and second gate wires 90 , 100 ) transfers the gate signal to the gate electrode of the thin film transistor of each pixel region 80 .

The first and second data drivers 40 and 50 generate data signals and supply them to the first and second data lines 60 and 70 of the display panel 10, respectively, and the first and second data lines Reference numerals 60 and 70 transmit the data signal to the source electrode of the thin film transistor of each pixel region 80 .

However, as the display device has a higher resolution and a larger area, the load of the first and second gate lines 90 and 100 and the first and second data lines 60 and 70 of the display panel 10 increases. increase, and as a result, the gate signal and data signal transmitted through the first and second gate lines 90 and 100 and the first and second data lines 60 and 70 are distorted, so that the display quality of the image is deteriorated. occurs

In order to prevent this, as shown in FIG. 1, in the case of a large-area, high-resolution display panel such as 8K (7680 X 4320), the first and second gate drivers 20 and 30 and the first and second data drivers ( 40 and 50 are disposed on the upper, lower, left and right sides of the display panel 10 , respectively, and the first and second gate drivers 20 and 30 and the first and second data drivers 40 and 50 are disposed on the display panel 10 . A divided driving method in which a display area is divided and driven has been proposed.

That is, the display area of the display panel 10 is divided into first to fourth areas A, B, C, and D, and scan (0001) is performed in the first to fourth areas A, B, C, and D, respectively. A gate signal was sequentially applied from scan(1080) to divide the display area and drive it.

In such a divided driving method, the first and second gate drivers 20 and 30 and the first and second data drivers 40 and 50 drive 1/4 of the display area, respectively, so that the gate signal and the data signal It is possible to minimize distortion of image and prevent deterioration of image display quality.

However, in such a conventional divided driving method, the first and second gate wirings 90 and 100 and the first and second gate wirings 90 and 100 formed in the first to fourth regions A, B, C, and D of the display region. The data lines 60 and 70 may have different line widths or thicknesses due to variations in manufacturing processes.

In addition, in general, the first and second gate drivers 20 and 30 and the first and second data drivers 40 and 50 are manufactured in the same form as an integrated circuit (IC). Due to this, the integrated circuits for driving the first to fourth regions A, B, C, and D may have different characteristics.

Process deviations of the first and second gate lines 90 and 100 and the first and second data lines 60 and 70 and the first and second gate drivers 20 and 30 and the first and second data drivers In the part deviation of (40, 50), a discontinuous pattern such as dim appears in the image at the boundary line BL of a straight line between the first to fourth regions A, B, C, and D, Accordingly, there is a problem in that the display quality of the image of the display device is deteriorated.

The present invention has been proposed to solve this problem, and by alternately connecting the upper and lower pixel areas of the boundary to the first and second data lines to form the boundary line in a zigzag rather than a straight line, process deviation and upper and lower data driver parts An object of the present invention is to provide a display device in which discontinuity or DIM phenomenon due to deviation is alleviated and a divided driving method thereof.

Further, according to the present invention, the first and second data lines are connected to each other at a specific point in time so that the same data signal is applied to the upper and lower adjacent pixel regions of the boundary, thereby preventing discontinuity due to process deviation and component deviation of the upper and lower data drivers. Another object of the present invention is to provide a display device in which the DIM phenomenon is alleviated and a divided driving method thereof.

Further, according to the present invention, the average value of the data signals of the first and second data lines is applied to the upper and lower pixel areas of the boundary by connecting a switch between the upper and lower pixel areas of the boundary portion, thereby reducing process deviation and upper and lower edges. Another object of the present invention is to provide a display device in which discontinuity or DIM phenomenon caused by component deviation of a data driver is alleviated and a divided driving method thereof.

In order to achieve the above technical object, the present invention provides a display panel including first to fourth regions including a plurality of pixel regions, first gate wirings disposed in the first and second regions, and the third and a second gate line disposed in the fourth area, first data lines disposed in the first and third areas, a second data line disposed in the second and fourth areas, and the first and first data lines disposed in the second and fourth areas; and first and second gate drivers respectively supplying a gate signal to a second gate line, and first and second data drivers respectively supplying a data signal to the first and second data lines; The two pixel regions adjacent to the top and bottom of the boundary between the second region and the third and fourth regions are alternately connected to the first and second data lines.

In addition, the thin film transistors of the two upper and lower pixel areas adjacent to the odd-numbered portion of the boundary portion are connected to the first data line, and the thin film transistors of the two even-numbered vertically adjacent upper and lower pixel areas of the boundary portion are connected to the second data line. Can be connected to wiring.

Meanwhile, according to the present invention, a display panel including first to fourth regions including a plurality of pixel regions, first gate wirings disposed in the first and second regions, and the third and fourth regions disposed in the third and fourth regions a second gate line formed in the first and second gate lines; a first data line disposed in the first and third regions; a second data line disposed in the second and fourth regions; and a gate to the first and second gate lines, respectively. and first and second gate drivers for supplying signals, and first and second data drivers for supplying data signals to the first and second data lines, respectively, between the first and second regions and between the first and second data lines. Two pixel regions adjacent to the top and bottom of the boundary between the third and fourth regions are respectively connected to the second and first data lines, and the first and second data lines at the boundary are connected to each other through a switch. display is provided.

In addition, a thin film transistor in the pixel area at the boundary of the first and third areas is connected to the second data line, and the thin film transistor in the pixel area at the boundary of the second and fourth areas is connected to the first It can be connected to a data line.

In addition, the thin film transistor and the switch of the pixel area of the boundary portion may be turned on at the same time.

Meanwhile, according to the present invention, a display panel including first to fourth regions including a plurality of pixel regions, first gate wirings disposed in the first and second regions, and third and fourth regions disposed in the third and fourth regions a second gate line, first to fourth data lines respectively disposed in the first to fourth regions, and first and second gate drivers supplying gate signals to the first and second gate lines, respectively; first to fourth data drivers for supplying data signals to the first to fourth data lines, respectively, and upper and lower portions of a first boundary between the first and second regions and between the third and fourth regions two adjacent pixel regions are connected to each other through a first or second switch, and two pixel regions adjacent to the left and right of a second boundary between the first and third regions and between the second and fourth regions are A display device connected to each other through a third or fourth switch is provided.

In addition, the pixel electrodes of the pixel region of the first boundary portion are connected to each other through the first or second switch, and the pixel electrodes of the pixel region of the second boundary portion are connected to each other through the third or fourth switch. can

Further, during the Nth frame, the first and third switches are turned on, the second and fourth switches are turned off, and during the (N+1)th frame, the first and third switches are turned off. and the second and fourth switches may be turned on.

In another aspect, the present invention provides a display panel including first to fourth regions, first and second gate lines, first and second data lines, first and second gate drivers, and a first and a second data driver, wherein two pixel regions adjacent to the top and bottom of a boundary between the first and second regions and between the third and fourth regions are alternately connected to the first and second data lines. In the divided driving method of a connected display device, a) the first and second gate drivers apply a gate signal to a pixel region at the boundary of the first and third regions through the first and second gate lines supplying; b) the first data driver supplies a data signal to an odd-numbered pixel region of the boundary between the first and third regions through the first data line, and the second data driver supplies the data signal to the second data driver. supplying the data signal to an even-numbered pixel region of the boundary portion of the first and third regions through a second data line; c) the first and second gate drivers are the first and second gate drivers, respectively. supplying a gate signal to the pixel region at the boundary of the second and fourth regions through a second gate line; d) the first data driver connects the second and fourth regions through the first data line A data signal is supplied to an odd-numbered pixel region of the boundary of the region, and the second data driver supplies the data to an even-numbered pixel region of the boundary of the second and fourth regions through the second data line. supplying a signal; e) the first and second gate drivers sequentially apply the gate signal to the pixel regions above and below the boundary of the first to fourth regions through the first and second gate lines supplying the first to fourth data through the first and second data lines, respectively, by the first and second data drivers; and sequentially supplying the data signal to pixel regions above and below the boundary of the region.

Meanwhile, the present invention provides a display panel including first to fourth regions, first and second gate lines, first and second data lines, first and second gate drivers, and first and second gate lines. and a data driver, wherein two pixel regions adjacent to the top and bottom of a boundary between the first and second regions and between the third and fourth regions are connected to the second and first data lines, respectively In the division driving method of a display device in which the first and second data lines at the boundary are connected to each other through a switch, a) the first and second gate drivers connect the first and second gate lines supplying a gate signal to the pixel region of the boundary portion at the same time and turning on the switch; b) the first and second data drivers are connected to the boundary portion through the first and second data lines, respectively supplying a data signal to a pixel region of a; c) the first and second gate drivers to the pixel regions above and below the boundary of the first to fourth regions through the first and second gate lines sequentially supplying a gate signal; d) the first and second data drivers respectively pass the first and second data lines to the pixel regions above and below the boundary of the first to fourth regions. Provided is a method for dividing a display device including sequentially supplying signals.

Meanwhile, the present invention provides a display panel including first to fourth regions, first and second gate wires, first to fourth data wires, first and second gate drivers, and first to fourth and a data driver, wherein the two pixel regions adjacent to the top and bottom of a first boundary between the first and second regions and between the third and fourth regions are connected to each other through a first or second switch, In the division driving method of a display device, two pixel regions adjacent to the left and right of a second boundary portion between the first and third regions and between the second and fourth regions are connected to each other through a third or fourth switch, , a) during an N-th frame, the first and second gate drivers supply a gate signal to the pixel region at the boundary of the first and third regions through the first and second gate lines, and turning on the first and third switches and turning off the second and fourth switches; b) during the Nth frame, the first to fourth data drivers are respectively the first to fourth data supplying a data signal to the pixel region of the first boundary portion through a wiring; c) during the Nth frame, the first and second gate drivers through the first and second gate lines sequentially supplying the gate signal to the pixel regions above and below the first boundary of the first to fourth regions; d) during the Nth frame, the first to fourth data drivers, respectively, for the first to fourth sequentially supplying the data signal to pixel regions above and below the boundary of the first to fourth regions through a data line; and e) during the (N+1)th frame, the first and second gate drivers supplies a gate signal to the pixel region of the boundary portion of the first and third regions through the first and second gate wirings, and the first and third turning off a switch and turning on the second and fourth switches; and f) during the (N+1) th frame, the first to fourth data drivers are respectively the first to fourth data supplying a data signal to the pixel region of the first boundary portion through a wiring; and g) during the (N+1)th frame, the first and second gate drivers connect the first and second gate wirings. sequentially supplying the gate signal to the pixel regions above and below the first boundary of the first to fourth regions; and d) during the (N+1)th frame, the first to fourth data drivers and sequentially supplying the data signals to pixel regions above and below the boundary of the first to fourth regions through the first to fourth data lines, respectively.

As described above, according to the present invention, by alternately connecting the upper and lower pixel regions of the boundary to the first and second data lines to form the boundary line in a zigzag rather than a straight line, discontinuity due to process deviation and deviation of the upper and lower data driver parts Or it has the effect of alleviating the DIM phenomenon.

Further, according to the present invention, the first and second data lines are connected to each other at a specific point in time so that the same data signal is applied to the upper and lower adjacent pixel regions of the boundary, thereby preventing discontinuity due to process deviation and component deviation of the upper and lower data drivers. It has the effect of alleviating the DIM phenomenon.

Further, according to the present invention, the average value of the data signals of the first and second data lines is applied to the upper and lower pixel areas of the boundary by connecting a switch between the upper and lower pixel areas of the boundary portion, thereby reducing process deviation and upper and lower edges. It has the effect of alleviating the discontinuity or DIM phenomenon due to component deviation of the data driver.

1 is a diagram for explaining a conventional method of dividing a display device.
2 is a view for explaining a display device according to a first embodiment of the present invention.
3 is a view for explaining a method of dividing a display device according to a first embodiment of the present invention.
4 is a view for explaining a display device according to a second embodiment of the present invention.
5 is a diagram for explaining a method of dividing a display device according to a second embodiment of the present invention.
6 is a view for explaining a display device according to a third embodiment of the present invention.
7 is a view for explaining a method of dividing a display device according to a third embodiment of the present invention.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the drawings.

2 is a view for explaining a display device according to a first embodiment of the present invention.

Referring to FIG. 2 , the display device according to the first embodiment of the present invention includes a display panel 110 , first and second gate drivers 120 and 130 , and first and second data drivers 140 and 150 . includes

The display panel 110 displays an image using a gate signal and a data signal. To this end, the display panel 110 includes a plurality of first and second gate wires 190 and 200 and a plurality of first and second data signals. wirings 160 and 170 are included.

The plurality of first and second gate lines 190 and 200 and the plurality of first and second data lines 160 and 170 cross each other to define a plurality of pixel regions 180 , and each pixel region 180 . A thin film transistor (not shown) is formed there.

Here, the display panel 110 includes first to fourth regions A, B, C, and D, and a plurality of first gate wires 190 are disposed in the first and second regions A and B. and a plurality of second gate wirings 200 are arranged in the third and fourth regions C and D, and a plurality of first data wirings 160 are arranged in the first and third regions A and C. and the plurality of second data lines 170 are disposed in the second and fourth regions B and D.

The first gate driver 120 is disposed on the left side of the display panel 110 , and generates a gate signal through the plurality of first gate wires 190 in the first and second regions A, B), the second gate driver 130 is disposed on the right side of the display panel 110 , and generates a gate signal through a plurality of second gate wirings 200 to generate the third and third gate signals of the display panel 110 . It is supplied to the fourth regions C and D.

The first data driver 140 is disposed on the upper side of the display panel 110 , and generates data signals through the plurality of first data lines 160 in the first and third regions A, C), the second data driver 150 is disposed below the display panel 110 , and generates a data signal for the second data signal of the display panel 110 through the plurality of second data lines 170 . and mainly supplied to the fourth regions B and D.

In this case, the two pixel areas 180 vertically adjacent to the boundary portion BA between the first and second areas A and B and the boundary portion BA between the third and fourth areas C and D. The thin film transistors are alternately connected to the first and second data lines 160 and 170 .

That is, the thin film transistors of the two vertically adjacent two pixel regions 180 of the odd-numbered boundary portion BA are connected to the first data line 160 , and the even-numbered vertically adjacent two pixel regions 180 of the boundary portion BA are vertically adjacent. The thin film transistor of the pixel region 180 may be connected to the second data line 170 .

For example, the thin film transistors of the first two pixel areas 180 adjacent to the top and bottom of the first left of the boundary portion BA are connected to the first data line 160 , and are connected to the second top and bottom of the left side of the boundary portion BA. The thin film transistors of the two pixel regions 180 adjacent to each other are connected to the second data line 170 .

In addition, the thin film transistors of the two vertically adjacent two pixel areas 180 from the left of the boundary portion BA are connected to the first data line 160 and vertically adjacent to the fourth from the left of the boundary portion BA. The thin film transistors of the two pixel regions 180 are connected to the second data line 170 .

Here, the display panel 110 may be a liquid crystal panel or an organic light emitting diode panel,

The display panel 110, which is a liquid crystal panel, includes a first substrate including a thin film transistor and a pixel electrode, a second substrate facing the first substrate and including a common electrode, and a liquid crystal positioned between the first and second substrates. layers may be included.

In addition, the display panel 110 , which is an organic light emitting diode panel, may include a first substrate including a thin film transistor, a light emitting diode connected to the thin film transistor, and a second substrate facing the first substrate.

Hereinafter, the divided driving method of the display device according to the first exemplary embodiment of the present invention will be described with reference to FIG. 2 . The first and second data drivers 140 and 150 include first and second data lines 160 and 170, respectively. ), the data signals of the first and second data drivers 140 and 150 are alternately input to the two pixel regions 180 adjacent to the upper and lower sides of the boundary portion BA.

That is, when a gate signal is supplied from the first gate driver 120 to the first gate wiring 190 at the bottom of the first region A, the pixel region (BA) of the boundary portion BA of the first region A 180) of the thin film transistor is turned on (turn-on).

Accordingly, the data signal of the first data driver 140 is transmitted through the first data line 160 in odd-numbered pixel areas such as the first left and third left of the boundary portion BA of the first area A. (180) is transferred to the thin film transistor.

In addition, the data signal of the second data driver 150 is transmitted through the second data line 170 to even-numbered pixel areas (such as second left and fourth left) of the boundary portion BA of the first area A. 180) is transferred to the thin film transistor.

Thereafter, when a gate signal is supplied from the first gate driver 120 to the first gate wiring 190 at the uppermost portion of the second region B, the pixel region (BA) of the boundary portion BA of the second region B. 180) of the thin film transistor is turned on (turn-on).

Accordingly, the data signal of the first data driver 140 is transmitted through the first data line 160 to the odd-numbered pixel areas such as the first left and the third left of the boundary portion BA of the second area B. (180) is transferred to the thin film transistor.

Then, the data signal of the second data driver 150 is transmitted through the second data line 170 to even-numbered pixel areas (eg, second left and fourth left, etc.) near the boundary BA of the second area B. 180) is transferred to the thin film transistor.

Accordingly, in the divided driving method of the display device according to the first embodiment of the present invention, the pixel region 180 to which the data signal of the first data driver 140 is applied and the data signal of the second data driver 150 are applied. Since the boundary line BL between the pixel regions 180 is formed in a zigzag shape rather than a straight line, the recognition level of the boundary line BL is reduced, so that process deviation of the boundary line region and the upper and lower data drivers 140 and 150 are formed. Discontinuity or DIM phenomenon due to deviation can be alleviated.

At this time, since the data signal is applied to the two pixel regions 180 adjacent to the top and bottom of the boundary portion BA through the same data line, the gate wiring corresponding to the boundary portion BA is sequentially gated by changing the order for each frame. A signal is applied, which will be described with reference to the drawings.

FIG. 3 is a diagram for explaining a method of dividing a display device according to the first embodiment of the present invention, and will be described with reference to FIG. 2 .

As shown in FIG. 3 , the gate signals output from the first and second gate drivers 120 and 130 in the N-th frame (Frame N) are the boundary portions (A, C) of the first and third regions (A, C). It is first applied to the first and second gate wirings 190 and 200 corresponding to the pixel region 180 of BA), and the pixel region 180 of the boundary portion BA of the second and fourth regions B and D. ) is applied a second time to the first and second gate wirings 190 and 200 corresponding to The first and second gate wirings 190 and 200 corresponding to the first and second gate wirings 190 and 200 corresponding to the pixel region 180 below the boundary portion BA of the second and fourth regions B and D. 190 and 200) simultaneously and sequentially.

The gate signals in the first and second gate wirings 190 and 200 corresponding to the pixel region 180 of the boundary portion BA of the first and third regions A and C and the second and fourth regions ( When gate signals from the first and second gate lines 190 and 200 corresponding to the pixel region 180 of the boundary portion BA of B and D are simultaneously applied, the boundary portion BA is vertically adjacent to each other. Since the same data signal is applied to the thin film transistor of the pixel region 180 and thus image quality may be deteriorated, the first and second gate wirings corresponding to the two pixel regions 180 adjacent to the top and bottom of the boundary portion BA. Gate signals are sequentially applied to (190, 200).

As such, the order of application of the gate signal applied to the gate line corresponding to the boundary portion BA may be changed for each frame, and the range of the boundary vicinity BA to which the gate signal is sequentially applied is determined by the area of the display panel 110 and It may be determined in consideration of image quality.

In the display device according to the first embodiment of the present invention, data signals are alternately input to the upper and lower pixel regions adjacent to the upper and lower portions of the boundary during division driving to form the boundary line in a zigzag rather than a straight line, thereby reducing the process deviation of the boundary portion and Discontinuity or DIM phenomenon due to component deviation of the first and second data drivers 140 and 150 can be alleviated

FIG. 4 is a view for explaining a display device according to a second embodiment of the present invention, and descriptions of the same parts as those of the first embodiment of FIG. 2 will be omitted.

Referring to FIG. 4 , the display device according to the second embodiment of the present invention includes a display panel, first and second gate drivers 220 (not shown), and first and second data drivers 240 and 250 . do.

In this case, the two pixel areas 280 adjacent to the top and bottom of the boundary portion BA between the first and second areas A and B and the boundary portion BA between the third and fourth areas C and D. are connected to the second and first data lines 270 and 260, respectively.

In addition, a switch SW is connected between the first and second data lines 260 and 270 of the boundary portion BA, and the switch SW may be a thin film transistor that is switched according to a switch signal Vsw.

Referring to FIG. 4 , the divided driving method of the display device according to the second embodiment of the present invention will be described. The first and second data drivers 240 and 250 include first and second data lines 260 and 270, respectively. The data signal is supplied to the thin film transistors of the two pixel regions 280 adjacent to the upper and lower sides of the boundary portion BA, and the average value of the data signals of the first and second data drivers 240 and 250 is input.

That is, when a gate signal is simultaneously supplied from the first gate driver 220 to the lowermost gate line 290 of the first region A and the uppermost gate line 290 of the second region B, the first The thin film transistor of the pixel area 280 of the boundary portion BA between the first area A and the second area B is turned on, and at the same time the switch SW is also turned on. on) becomes

For example, the switch signal Vsw for controlling the switch SW is transmitted to the first and second gate wirings 290 (not shown) corresponding to the two pixel regions 280 vertically adjacent to the upper and lower portions of the boundary portion BA. It may be a signal having the same timing as the applied gate signal.

Accordingly, the data signal of the first data driver 240 transmitted through the first data line 260 and the data signal of the second data driver 250 transmitted through the second data line 270 are switched between the switch SW ), and the average value is equally transmitted to the thin film transistors of the two pixel regions 280 adjacent to the top and bottom of the boundary portion BA.

Accordingly, in the divided driving method of the display device according to the second exemplary embodiment of the present invention, the first and second data drivers 240 and 250 are connected to the thin film transistors of the two pixel areas 280 vertically adjacent to the boundary portion BA. ), the boundary line BL is not generated, so the discontinuity or DIM phenomenon caused by the process deviation of the boundary line and the component deviation of the upper and lower data drivers 240 and 250 can be alleviated.

FIG. 5 is a diagram for explaining a method of dividing a display device according to a second exemplary embodiment of the present invention, which will be described with reference to FIG. 4 .

As shown in FIG. 5 , the gate signals output from the first and second gate drivers 220 (not shown) are applied between the first and third regions (A and C in FIG. 2 ) and between the second and fourth regions. It is simultaneously applied to the first and second gate wirings 290 (not shown) corresponding to the pixel region 280 of the boundary portion BA between (B and D in FIG. 2 ), and thereafter, the first and third regions The first and second gate wirings 290 (not shown) corresponding to the pixel region 280 above the boundary portion BA of (A, C in FIG. 2) and the second and fourth regions (B in FIG. 2) It is simultaneously and sequentially applied to the first and second gate wirings 290 (not shown) corresponding to the pixel region 280 under the boundary portion BA of D).

The average values of the data signals of the first and second data drivers 240 and 250 are equally applied to the thin film transistors of the two pixel regions 280 adjacent to the top and bottom of the boundary portion BA by the switch SW, so that the boundary line ( BL) is not generated, so the discontinuity or DIM phenomenon caused by the process deviation of the boundary line and the deviation of the parts of the upper and lower data drivers 240 and 250 can be alleviated.

In this case, the number of pixel regions 280 adjacent to the top and bottom of the boundary portion BA to which the same average value is applied by turning on the switch SW may be determined in consideration of the area and image quality of the display panel.

6 is a diagram for explaining a display device according to a third embodiment of the present invention, and descriptions of the same parts as those of the first and second embodiments will be omitted.

Referring to FIG. 6 , a display device according to a third exemplary embodiment of the present invention includes a display panel, first and second gate drivers 320 and 330 , and first to fourth data drivers 340 , 350 , 342 and 352 . ) is included.

The display panel displays an image using a gate signal and a data signal. For this purpose, the display panel (110 in FIG. 2 ) includes a plurality of first and second gate wires 390 and 400 and a plurality of first to fourth data. wirings 360 , 370 , 362 , and 372 are included.

The plurality of first and second gate lines 390 and 400 and the plurality of first to fourth data lines 360 , 370 , 362 , and 372 cross each other to define a plurality of pixel regions 380 , and each pixel A thin film transistor (not shown) is formed in the region 380 .

Here, the display panel includes first to fourth regions A, B, C, and D, and a plurality of first gate wirings 390 are disposed in the first and second regions A and B, and The second gate wiring 400 is disposed in the third and fourth regions C and D, and the plurality of first to fourth data lines 360, 370, 362, and 372 are respectively disposed in the first to fourth regions. It is placed at (A, B, C, D).

The first gate driver 320 is disposed on the left side of the display panel, generates a gate signal and supplies it to the first and second regions A and B of the display panel through the plurality of first gate wires 390 , The second gate driver 330 is disposed on the right side of the display panel, generates a gate signal and supplies it to the third and fourth regions C and D of the display panel through the plurality of second gate lines 400 .

The first data driver 340 is disposed on the upper left side of the display panel, generates a data signal and supplies it to the first area A of the display panel through the plurality of first data lines 360 , and the second data driver Reference numeral 350 is disposed on the lower left side of the display panel, generates data signals and supplies them to the second region B of the display panel through the plurality of second data lines 370 .

The third data driver 342 is disposed on the upper right side of the display panel, generates a data signal and supplies it to the third region C of the display panel through a plurality of third data lines 362 , and the fourth data driver generates a data signal Reference numeral 352 is disposed on the lower right side of the display panel to generate a data signal and supply it to the fourth region D of the display panel through a plurality of fourth data lines 372 .

That is, the thin film transistors of the pixel regions 380 of the first to fourth regions A, B, C, and D are respectively connected to the first to fourth data lines 360 , 370 , 362 , and 372 .

And, the pixel electrode ( ) of the two pixel areas 380 adjacent to the top and bottom of the first boundary portion BA1 between the first and second areas A and B and between the third and fourth areas C and D In the case of a liquid crystal panel, one electrode of the liquid crystal capacitor, in the case of a light emitting diode panel, one electrode of a light emitting diode) is connected to each other through the first switch SW1 and the rest is connected to each other through the second switch SW2.

In addition, the pixel electrodes of the two pixel regions 380 adjacent to the left and right of the second boundary portion BA2 between the first and third regions A and C and between the second and fourth regions B and D are formed. Some are connected to each other through the third switch SW3 and others are connected to each other through the fourth switch SW4.

The first to fourth switches SW1 to SW4 may be thin film transistors switched according to the first to fourth switch signals Vsw1, Vsw2, Vsw3, and Vsw4, respectively.

Hereinafter, the divided driving method according to the third embodiment of the present invention will be described with reference to FIG. 6 . The first and second data drivers 340 and 350 transmit data to the first and second data lines 360 and 370, respectively. A signal is supplied, and the third and fourth data drivers 342 and 352 supply data signals to the third and fourth data lines 362 and 372, respectively.

At this time, during the N-th frame, the first switch SW1 is turned on and the second switch SW2 is turned off, and thus the first boundary portion BA1 is The average value of the data signals of the first and second data drivers 340 and 350 or the third and fourth data is connected to a portion of the pixel electrodes of the two vertically adjacent pixel regions 380 connected by the first switch SW1. The average value of the data signals of the drivers 342 and 352 is applied, and the data signals of the first to fourth data drivers 340 , 350 , 342 and 352 are respectively applied to the remainder connected by the second switch SW2 . .

And, during the N-th frame, the third switch SW3 is turned on and the fourth switch SW4 is turned off, and thus the second boundary portion BA2 is Among the pixel electrodes of the two left and right pixel regions 380 , which are connected by the third switch SW3 , the average value of the data signals of the first and third data drivers 340 and 342 or the second and fourth data The average value of the data signals of the drivers 350 and 352 is applied, and the data signals of the first to fourth data drivers 340 , 350 , 342 and 352 are respectively applied to the remainder connected by the fourth switch SW4 . .

Meanwhile, during the (N+1)th frame, the first switch SW1 is turned off and the second switch SW2 is turned on, and thus the first boundary portion Data signals from the first to fourth data drivers 340 , 350 , 342 , and 352 are connected to some of the pixel electrodes of the two vertically adjacent pixel regions 380 of BA1 connected by the first switch SW1 , respectively. is applied, and to the remainder connected by the second switch SW2, the average value of the data signals of the first and second data drivers 340 and 350 or the data signals of the third and fourth data drivers 342 and 352 The average value is applied.

And, during the (N+1)th frame, the third switch SW3 is turned off and the fourth switch SW4 is turned on, and thus the second boundary portion Data signals from the first to fourth data drivers 340 , 350 , 342 , and 352 are respectively connected to some of the pixel electrodes of the two adjacent pixel regions 380 on the left and right of BA2 connected by the third switch SW3 . is applied, and to the remainder connected by the fourth switch SW4, the average value of the data signals of the first and third data drivers 340 and 342 or the data signals of the second and fourth data drivers 350 and 352 The average value is applied.

Accordingly, in the divided driving method of the display device according to the third embodiment of the present invention, some of the pixel electrodes of the two pixel regions 380 adjacent to the top, bottom, left, and right of the first and second boundary portions BA1 and BA2 for each frame Since the average values of the data signals of the first to fourth data drivers 340 , 350 , 342 , and 352 are equally applied to the first to fourth data drivers 340 , 350 , 342 , and thus generation of the boundary line BL is minimized, process deviation of the boundary line portion and the data driving units 340 , 350 , 342 are applied. , 352) can alleviate the discontinuity or DIM phenomenon caused by component deviation.

FIG. 7 is a view for explaining a method of dividing a display device according to a third exemplary embodiment of the present invention, which will be described with reference to FIG. 6 .

As shown in FIG. 7 , the gate signals output from the first and second gate drivers 320 and 330 are between the first and second regions A and B and the third and fourth regions C and D ) are simultaneously applied to the first and second gate wirings 390 and 400 corresponding to the pixel region 380 of the first boundary portion BA1 between the The first and second gate lines 390 and 400 corresponding to the pixel area 380 above the first boundary portion BA1 and the lower portions of the first boundary portion BA1 of the second and fourth areas B and D It is sequentially applied simultaneously to the first and second gate wirings 390 and 400 corresponding to the pixel region 380 of .

Some of the pixel electrodes of the two pixel regions 380 adjacent to the top and bottom of the first boundary portion BA1 are connected to the first and second data drivers 340 and 350 by the first or second switches SW1 and SW2. The average value of the data signal or the average value of the data signals of the third and fourth data drivers 342 and 352 is equally applied, and among the pixel electrodes of the two pixel regions 380 adjacent to the left and right of the second boundary portion BA2 In some, the average value of the data signals of the first and third data drivers 340 and 342 or the average value of the data signals of the second and fourth data drivers 350 and 352 by the third or fourth switches SW3 and SW4 Since the same is applied to minimize the generation of the boundary line BL, it is possible to alleviate the discontinuity or DIM phenomenon caused by the process deviation of the boundary line portion and the component deviation of the data driving units 340, 350, 342, 352.

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.

110: display panel 120: first gate driver
130: second gate driver 140: first data driver
150: second data driver 190: first gate wiring
200: second gate line 160: first data line
170: second data line 180: pixel area
BL: borderline

Claims (13)

delete delete a display panel including first to fourth regions including a plurality of pixel regions;
a first gate line disposed in the first and second areas; a second gate line disposed in the third and fourth areas; a first data line disposed in the first and third areas; a second data line disposed in the second and fourth regions;
first and second gate drivers respectively supplying gate signals to the first and second gate lines;
and first and second data drivers respectively supplying data signals to the first and second data lines;
two pixel areas adjacent to the top and bottom of the boundary between the first and second areas and between the third and fourth areas are respectively connected to the second and first data lines;
The first and second data lines of the boundary portion are connected to each other through a switch,
A display device in which the thin film transistor and the switch of the pixel area of the boundary are turned on at the same time.
4. The method of claim 3,
The thin film transistor of the pixel area of the boundary portion of the first and third areas is connected to the second data line, and the thin film transistor of the pixel area of the boundary portion of the second and fourth areas is connected to the first data line display connected to the .
delete a display panel including first to fourth regions including a plurality of pixel regions;
A first gate line disposed in the first and second regions, a second gate line disposed in the third and fourth regions, and first to fourth data lines disposed in the first to fourth regions, respectively class;
first and second gate drivers respectively supplying gate signals to the first and second gate lines;
and first to fourth data drivers respectively supplying data signals to the first to fourth data lines;
Two pixel regions adjacent to the top and bottom of the first boundary between the first and second regions and between the third and fourth regions are connected to each other through a first or second switch,
Two pixel regions adjacent to the left and right of a second boundary portion between the first and third regions and between the second and fourth regions are connected to each other through a third or fourth switch,
During the Nth frame, the first and third switches are turned on and the second and fourth switches are turned off,
A display device in which the first and third switches are turned off and the second and fourth switches are turned on during a (N+1)th frame.
7. The method of claim 6,
The pixel electrodes of the pixel region of the first boundary are connected to each other through the first or second switch,
The pixel electrode of the pixel region of the second boundary portion is connected to each other through the third or fourth switch
delete delete a display panel including first to fourth regions; first and second gate lines; first and second data lines; first and second gate drivers; and first and second data drivers; Two pixel regions adjacent to the top and bottom of the boundary between the first and second regions and between the third and fourth regions are respectively connected to the second and first data lines, and the first and the first and fourth pixel regions of the boundary In the divided driving method of a display device in which the second data line is connected to each other through a switch,
a) the first and second gate drivers simultaneously supplying a gate signal to the pixel region of the boundary portion through the first and second gate wirings, and turning on the switch;
b) supplying, by the first and second data drivers, a data signal to the pixel region of the boundary portion through the first and second data lines, respectively;
c) sequentially supplying, by the first and second gate drivers, the gate signals to pixel regions above and below the boundary of the first to fourth regions through the first and second gate lines;
d) sequentially supplying, by the first and second data drivers, the data signals to the pixel regions above and below the boundary of the first to fourth regions through the first and second data lines, respectively; A divided driving method of a display device.
a display panel including first to fourth regions; first and second gate lines; first to fourth data lines; first and second gate drivers; and first to fourth data drivers; Two pixel regions adjacent to the top and bottom of a first boundary portion between the first and second regions and between the third and fourth regions are connected to each other through a first or second switch, and the first and third regions In the division driving method of a display device, two pixel regions adjacent to the left and right of a second boundary portion between the two regions and the second and fourth regions are connected to each other through a third or fourth switch,
a) during an N-th frame, the first and second gate drivers supply a gate signal to a pixel region of the first boundary portion of the first and third regions through the first and second gate lines, and turning on the first and third switches and turning off the second and fourth switches;
b) supplying, by the first to fourth data drivers, a data signal to the pixel region of the first boundary portion through the first to fourth data lines, respectively, during the Nth frame;
c) During the N-th frame, the first and second gate drivers sequentially apply the gate signals to the pixel regions above and below the first boundary of the first to fourth regions through the first and second gate lines. supplying with;
d) During the Nth frame, the first to fourth data drivers respectively apply the data signals to the pixel regions above and below the first boundary of the first to fourth regions through the first to fourth data lines. sequentially supplying;
e) During the (N+1)th frame, the first and second gate drivers transmit the gate signal to the pixel region at the first boundary of the first and third regions through the first and second gate wirings. supplying , turning off the first and third switches and turning on the second and fourth switches;
f) during the (N+1)th frame, the first to fourth data drivers supplying data signals to the pixel regions of the first boundary portion through the first to fourth data lines, respectively;
g) During the (N+1)-th frame, the first and second gate drivers are connected to the pixel regions above and below the first boundary of the first to fourth regions through the first and second gate lines. sequentially supplying gate signals;
h) During the (N+1)th frame, the first to fourth data drivers are respectively connected to the pixel regions above and below the first boundary of the first to fourth regions through the first to fourth data lines. and sequentially supplying the data signals.
4. The method of claim 3,
Among the two pixel areas adjacent to the upper and lower sides of the boundary portion, a pixel area connected to the second data line is not connected to the first data line, and among these two pixel areas, a pixel area connected to the first data line is A display device not connected to the second data line.
7. The method of claim 6,
At a portion where the first boundary portion and the second boundary portion intersect, among the four pixel areas adjacent to the top, bottom, left and right, two pixel areas adjacent to each other are connected to each other through the first switch, and from among the four pixel areas, to the left and right Two adjacent pixel areas are connected to each other through the fourth switch.

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