KR102133914B1 - Tiled display, and Bezelless liuid crystal display apparatus - Google Patents

Abstract

According to the present invention, the tiled display includes a plurality of bezelless liquid crystal display panels formed such that liquid crystal pixels are exposed to at least one side of an upper side, a lower side, a left side, and a right side; And a plurality of backlight units that are installed under each of the plurality of bezel-free liquid crystal display panels and emit light; and wherein the plurality of bezel-free liquid crystal display panels are installed such that side surfaces to which the liquid crystal pixels are exposed are connected to each other. Each of the plurality of backlight units includes a plurality of LEDs (LEDs) that illuminate the bezel-free liquid crystal display panel, and the plurality of LEDs are installed at equal intervals, and the plurality of bezel-free liquid crystal displays Two adjacent LEDs may be installed to maintain equal spacing even in the parts where the panels are connected to each other.

Description

Tiled display, and Bezelless liuid crystal display apparatus

The present invention relates to a tiled display, and more particularly, to a tiled display and a bezel-free liquid crystal display device formed by using a plurality of bezel-free liquid crystal display panels to which at least one side liquid crystal pixel is exposed.

In general, a tiled display is formed by connecting two or more liquid crystal displays (LCDs). However, since a bezel forming an edge of the liquid crystal display exists in a portion where the two liquid crystal displays are connected, when an image is output to the tiled display, the image is cut off at a location where the bezel is located, resulting in a discontinuous section.

Accordingly, a structure in which an optical member or a sub display is installed in a connection portion where a bezel is positioned to minimize or eliminate such discontinuous section has been developed. However, a tiled display in which an optical member or sub-display is installed on the connecting portion may reduce discontinuities, but requires additional parts, separate image processing corresponding to the optical member or sub-display, and a narrow viewing angle. , There is a problem that the installation is difficult.

Accordingly, there is a need to develop a tiled display that is easy to install without generating a discontinuous section.

The present invention has been devised in view of the above problems, and a tiled display formed using a bezel-free liquid crystal display panel formed such that liquid crystal pixels are exposed on at least one side to facilitate installation without generating a discontinuous section, and It is related to a bezel-free liquid crystal display device.

A tiled display according to an aspect of the present invention includes a plurality of bezelless liquid crystal display panels formed such that liquid crystal pixels are exposed to at least one side of an upper side, a lower side, a left side, and a right side; And a plurality of backlight units that are installed under each of the plurality of bezel-free liquid crystal display panels and emit light; and wherein the plurality of bezel-free liquid crystal display panels are installed such that side surfaces to which the liquid crystal pixels are exposed are connected to each other. Each of the plurality of backlight units includes a plurality of LEDs (LEDs) that illuminate the bezel-free liquid crystal display panel, and the plurality of LEDs are installed at equal intervals, and the plurality of bezel-free liquid crystal displays Two adjacent LEDs may be installed to maintain equal spacing even in the parts where the panels are connected to each other.

At this time, at least one of the plurality of bezel-free liquid crystal display panels may be a single-sided bezel-free liquid crystal display panel formed such that the liquid crystal pixels are exposed on the left side or the right side.

In addition, in the single-sided bezel-free liquid crystal display panel, a gate drive IC may be installed on the right side or the left side.

In addition, the single-sided bezel liquid crystal display panel may include a color filter without a black matrix at the left end or the right end.

Further, at least one of the plurality of bezel-free liquid crystal display panels may include a double-sided bezel-free liquid crystal display panel formed such that the liquid crystal pixels are exposed on the left and right sides.

In addition, the double-sided bezel-free liquid crystal display panel may be provided with a gate drive IC and a source drive IC at the top and bottom facing each other.

In addition, the double-sided bezel-free liquid crystal display panel may include a color filter having no black matrix at the left end and the right end.

Also, at least one of the plurality of bezel-free liquid crystal display panels may be a three-sided bezel-free liquid crystal display panel formed to expose the liquid crystal pixels on three side surfaces.

In addition, the three-sided bezel-free liquid crystal display panel may have a gate drive integrated circuit and a source drive integrated circuit installed on the same side.

In addition, the three-sided bezel-free liquid crystal display panel may be configured to express a single line image or two lines of image with one gate signal.

In addition, two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels may be installed such that the exposed side surfaces of the liquid crystal pixels contact each other.

In addition, two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels may be installed such that the outermost liquid crystal pixel lines on the side where the liquid crystal pixels are exposed overlap each other.

In addition, a portion of the lower polarizing member corresponding to the overlapping liquid crystal pixel line is removed from the non-bezel liquid crystal display panel positioned on the upper side, and the portion of the upper polarizing member corresponding to the overlapping liquid crystal pixel line is removed from the non-bezel liquid crystal display panel positioned on the lower side. This can be removed.

In addition, the plurality of bezel-free liquid crystal display panels further includes a transparent dummy panel formed on the side where the liquid crystal pixels are exposed, and two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels have the transparent dummy panel. It may be installed to overlap the exposed liquid crystal pixel line.

In addition, each of the plurality of bezel-free liquid crystal display panels further includes a transparent sealing member that seals a side on which the liquid crystal pixels are exposed, and two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels are transparent. The sealing member may be installed to overlap the exposed liquid crystal pixel line.

In addition, each of the plurality of bezel-free liquid crystal display panels may include a position detection sensor capable of detecting a positional relationship with an adjacent bezel-free liquid crystal display panel.

In addition, the cross-section bezel-free liquid crystal display panel may be formed by cutting the gate portions of one side of the liquid crystal display panel having gate portions on both sides.

A bezel-free liquid crystal display device according to another aspect of the present invention includes a bezelless liquid crystal display panel formed to expose a liquid crystal pixel to at least one side of a left side surface and a right side surface; A backlight unit installed under each of the bezel-free liquid crystal display panels and emitting light; A housing supporting the bezel-free liquid crystal display panel and the backlight unit; A position detection sensor installed on a rear surface of the housing and detecting a position of a bezel-free liquid crystal display device installed on the left or right side of the housing; And a stand supporting the housing.

At this time, a mobile unit capable of moving the housing up and down and left and right may be further installed on the stand, and the mobile unit may move the housing according to the signal of the position detection sensor.

In addition, the bezel-free liquid crystal display device may further include a control unit outputting a connection pattern to the bezel-free liquid crystal display panel.

1 is a view showing a cross-section bezel-free liquid crystal display panel used in a tiled display according to an embodiment of the present invention;
2 is a view showing a double-sided bezel liquid crystal display panel used in a tiled display according to an embodiment of the present invention;
3 is a view showing a three-sided bezel liquid crystal display panel used in a tiled display according to an embodiment of the present invention;
Figure 4 is a side view schematically showing one side of a cross-section bezel-free liquid crystal display device;
5 is a side view schematically showing one side of a double-sided bezel-free liquid crystal display device;
6 is a side view schematically showing one side of a three-sided bezel-free liquid crystal display device;
7A to 7D are front views showing a tiled display according to various embodiments of the present invention;
8 is a partial perspective view showing two bezel-free liquid crystal display panels connected by a connecting member;
9 is a front view showing a tiled display according to another embodiment of the present invention;
10 is a view for explaining a method of making a single-sided bezel liquid crystal display panel using a liquid crystal display panel having gate portions on both sides;
11 is a view for explaining a method of making a single-sided bezel liquid crystal display panel using a liquid crystal display panel having a gate portion on only one side;
12 is a view showing the arrangement of source and gate drive integrated circuits of a single-sided bezel-free liquid crystal display panel;
13 is a view showing the arrangement of the source and gate drive integrated circuit of the double-sided bezel-free liquid crystal display panel;
14 is a diagram showing the arrangement of source and gate drive integrated circuits of a three-sided bezel-free liquid crystal display panel;
15 is a view showing an example of connecting a source line and a gate line in a three-sided bezel-free liquid crystal display panel;
16 is a view showing another example of connecting a source line and a gate line in a three-sided bezel-free liquid crystal display panel;
17A is a cross-sectional view schematically showing a state immediately before connecting two bezel-free liquid crystal display devices;
17B is a cross-sectional view schematically showing a state in which two bezel-free liquid crystal display devices are connected;
18 to 25 are cross-sectional views schematically showing various connection structures connecting two bezel-free liquid crystal display devices;
26 is a view for explaining a method of forming a 2x2 tiled display using a bezel-free liquid crystal display panel cut from the same side;
27 is a view for explaining the operation of the position detection sensor installed on the back of the bezel-free liquid crystal display device;
28 is a view showing another example of the position detection sensor installed on the rear of the bezel-free liquid crystal display device;
29 is a view showing a bezel-free liquid crystal display device according to an embodiment of the present invention;
30 is a view showing a process of automatically connecting the two bezel-free liquid crystal display devices shown in FIG. 29;
FIG. 31 is a view showing a state in which a pattern for connection is output on the screens of the two bezel-free liquid crystal display devices shown in FIG. 29;
32 is a view showing a case in which two bezel-free liquid crystal display devices are installed to be shifted up and down;
FIG. 33 is a diagram for explaining a method of displaying an image when two bezel-free liquid crystal display devices are alternately installed as shown in FIG. 32.

Hereinafter, embodiments of the tiled display and the bezel-free liquid crystal display panel according to the present invention will be described in detail with reference to the accompanying drawings.

It should be understood that the embodiments described below are illustratively shown to help the understanding of the present invention, and the present invention can be implemented in various ways differently from the embodiments described herein. However, in the following description of the present invention, when it is determined that a detailed description of related known functions or components may unnecessarily obscure the subject matter of the present invention, the detailed description and specific illustration will be omitted. In addition, the accompanying drawings may not be drawn to scale in order to aid the understanding of the invention, but the dimensions of some components may be exaggerated.

1 is a view showing a single-sided bezel-free liquid crystal display panel used in a tiled display according to an embodiment of the present invention, and FIG. 2 is a double-sided bezel-free liquid crystal display used in a tiled display according to an embodiment of the present invention 3 is a view showing a three-sided bezel-free liquid crystal display panel used in a tiled display according to an exemplary embodiment of the present invention.

1 to 3, the bezel-free liquid crystal display panels 10, 20 and 30 according to an exemplary embodiment of the present invention are formed such that at least one of the four sides exposes a liquid crystal pixel.

Specifically, FIG. 1 discloses a single-sided bezel-free liquid crystal display panel 10 surrounded by a bezel 15 with the liquid crystal pixels exposed on one of the four sides and the other three sides. The single-sided bezel liquid crystal display panel 10 is formed such that the bezel on the right side is removed as shown in FIG. 1(a) to expose the right end liquid crystal pixel line 11, or the bezel on the left side as shown in FIG. 1(b). This may be removed so that the left end liquid crystal pixel line 12 is exposed. Alternatively, the single-sided bezel liquid crystal display panel 10 is formed such that the lower side bezel is removed as shown in FIG. 1(c) to expose the lower liquid crystal pixel line 13, or the upper side as shown in FIG. 1(d). The bezel of may be removed to form the upper liquid crystal pixel line 14.

FIG. 2 discloses a double-sided bezel-free liquid crystal display panel 20 in which two of the four sides are exposed with liquid crystal pixels, and the other two sides are surrounded by a bezel 25. Specifically, the double-sided bezel-free liquid crystal display panel 20 is formed such that the right and lower bezels are removed to expose the right and lower liquid crystal pixel lines 21 and 22 as shown in FIG. 2A. , As shown in FIG. 2B, the left and lower bezels are removed to form the left and lower liquid crystal pixel lines 23 and 22 exposed. Alternatively, the double-sided bezel-free liquid crystal display panel 20 is formed such that the left and upper bezels are removed to expose the left and upper liquid crystal pixel lines 23 and 24 as shown in FIG. As shown in (d), the right and upper bezels are removed so that the right and upper liquid crystal pixel lines 21 and 24 are exposed. Alternatively, as illustrated in (e) of FIG. 2, the left and right bezels are removed to form the left and right liquid crystal pixel lines 23 and 21.

FIG. 3 discloses a three-sided bezel-free liquid crystal display panel 30 in which three of the four sides are exposed with liquid crystal pixels, and the other side is surrounded by a bezel 35. Specifically, as shown in FIG. 3, the three-sided bezel-free liquid crystal display panel 30 removes the bezel of the left side, right side, and bottom side, and thus the right end, bottom, and left end liquid crystal pixel lines 31, 32, and 33. ) Is formed to be exposed. However, the three-sided bezel-free liquid crystal display panel 30 is not limited thereto. Although not shown, it is also possible to make a three-sided bezel-free liquid crystal display panel 30 by maintaining the bezel of one of the left side, right side, and lower side, and removing the bezel of the other portion.

The above-described single-sided, double-sided, and three-sided bezel-free liquid crystal display panels 10, 20, and 30 may include single-sided, double-sided, and three-sided bezel-free liquid crystal display devices, each of which includes a backlight unit installed on a lower surface. Therefore, when the backlight unit emits light, the single-sided, double-sided, and three-sided bezel-free liquid crystal display panels can display an image.

4 to 6 are cross-sectional views schematically showing a single-sided, double-sided, and three-sided bezel-free liquid crystal display device according to an embodiment of the present invention.

FIG. 4 is a side view schematically showing one side of a single-sided bezel-free liquid crystal display device, FIG. 5 is a side view schematically showing one side of a double-sided bezel-free liquid crystal display device, and FIG. 6 is a side view of a three-sided bezel-free liquid crystal display device It is a side view schematically showing.

Referring to FIG. 4, the single-sided bezel-free liquid crystal display device 10-1 includes a single-sided bezel-free liquid crystal display panel 10-2, a diffuser plate 10-3, and a backlight unit 10-7. The single-sided bezel-free liquid crystal display panel 10-2 and the diffuser plate 10-3 are upper housings 10-4 forming a bezel 15 surrounding the three sides of the bezel-free liquid crystal display panel 10 as shown in FIG. ). Therefore, the upper housing 10-4 is formed in a shape in which one side is removed from the rectangular frame. The diffuser plate 103 provides light emitted from a plurality of LEDs 10-6 of the backlight unit 107 to a bezel-free liquid crystal display panel 10-2, a prism sheet used in a conventional liquid crystal display device, and the like It may include the same optical sheets. The backlight unit 10-7 is installed on the upper surface of the lower housing 10-5 and the lower housing 10-5, and a plurality of LEDs 10- emitting light toward the bezel-free liquid crystal display panel 10-2 6). The lower housing 10-5 is coupled to the upper housing 10-4 by fastening members 10-8 such as bolts, screws, and the like. Like the upper housing 10-4, the lower housing 10-5 is formed with one side removed. Accordingly, as shown in FIG. 4, the single-sided bezel-free liquid crystal display device 10-1 is exposed with one side of the bezel-free liquid crystal display panel 10-2 and the diffuser plate 10-3. In addition, although FIG. 4 illustrates that five LEDs 10-6 are installed in the lower housing 10-5, the number of LEDs 10-6 is not limited thereto. The plurality of LEDs 10-6 may be appropriately determined according to the size of the bezel-free liquid crystal display panel 10-2.

Referring to FIG. 5, the double-sided bezel-free liquid crystal display device 20-1 includes a double-sided bezel-free liquid crystal display panel 20-2_, a diffuser plate 20-3, and a backlight unit 20-7. The bezel-free liquid crystal display panel 20-2 and the diffuser plate 20-3 are upper housings 20-4 forming a bezel 25 surrounding the two surfaces of the bezel-free liquid crystal display panel 20 as shown in FIG. Thus, the upper housing 20-4 is formed in a shape in which both sides are removed from the rectangular frame The diffuser plate 20-3 is a plurality of LEDs 20 of the backlight unit 20-7. The light emitted from -6) is provided to the bezel-free liquid crystal display panel 20-2, and may include optical sheets such as a prism sheet used in a conventional liquid crystal display device, etc. The backlight unit 20-7 A lower housing 20-5 and a plurality of LEDs 20-6 that are installed on the upper surfaces of the lower housing 20-5 and emit light toward the bezel-free liquid crystal display panel 20-2. (20-5) is coupled to the upper housing 20-4 by fastening members 20-8, such as bolts, screws, etc. The lower housing 20-5 is also on both sides like the upper housing 20-4. Thus, the two sides of the double-sided bezel-free liquid crystal display device 20-1 are exposed on both sides of the bezel-free liquid crystal display panel 20-2 and the diffuser plate 20-3. Although 5 LEDs 20-6 are installed in the lower housing 20-5 in FIG. 5, the number of LEDs 20-6 is not limited to this. May be appropriately determined according to the size of the bezel-free liquid crystal display panel 20-2.

Referring to FIG. 6, the three-sided bezel-free liquid crystal display device 30-1 may include a three-sided bezel-free liquid crystal display panel 30-2, a diffuser plate 30-2, and a backlight unit 30-4. have. The three-sided bezel-free liquid crystal display panel 30-2, the diffuser plate 30-3, and the backlight unit 30-4, as shown in FIG. 3, wrap a bezel 35 surrounding one side of the bezel-free liquid crystal display panel 30. It is supported by a fixed frame (30-8) forming. The fixed frame 30-8 is formed to fix the bezel-free liquid crystal display panel 30-2, the diffuser plate 30-2, and the backlight unit 30-4 from one side. At this time, a backlight unit 30-4 having an optical guide plate 30-5 may be used to support the liquid crystal display panel 30-2 and the diffuser plate 30-3. Specifically, the backlight unit 30-4 is provided on the side of the fixed frame 30-8 on one side of the light guide plate 30-5 and the light guide plate 30-5, which are installed under the diffuser plate 30-3. It may include a plurality of LEDs (30-6) installed, and the lower plate (30-7). 6, the optical bonding between the liquid crystal display panel 30-2, the diffuser plate 30-3, the light guide plate 30-5, and the lower plate 30-7 on the opposite side of the fixed frame ). The optical bonding 30-9 uses an optical clear resin or an optical clear adhesive. The diffuser plate 30-3 provides light emitted from the light guide plate 30-5 of the backlight unit 30-4 to the bezel-free liquid crystal display panel 30-2, and is used in a conventional liquid crystal display device. Optical sheets such as prism sheets. FIG. 6 shows a case in which the edge type backlight unit 30-4 is used, but as another example, in the case of a three-sided bezel-free liquid crystal display device, a direct type backlight unit as shown in FIGS. 4 and 5 as a backlight unit. Can be used.

7A to 7D show a tiled display formed using the above-described single-sided bezel liquid crystal display panel, double-sided bezel-free liquid crystal display panel, and three-sided bezel-free liquid crystal display panel. When forming a tiled display, an appropriate support frame may be used according to a desired size of the tiled display. The support frame can firmly fix the single-sided, double-sided, and three-sided bezel-free liquid crystal display devices constituting the tiled display. In FIGS. 7A to 7D, the support frame is installed under a plurality of bezel-free liquid crystal display panels.

7A shows a tiled display 100 in which six bezel-free liquid crystal display panels are arranged in a 2x3 form. In this case, four double-sided bezel-free liquid crystal display panels 110, 120, 150 and 160 and two three-sided bezel-free liquid crystal display panels 130 and 140 are used. The first display 110 is a double-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the right side 111 and the bottom side 112, and the second display 120 is provided with a bezel 115 on the upper side and the left side. ) Is a double-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed on the left side and the bottom side, and the right side 121 and the top side 124. The third display 130 is a three-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the left side 133, the right side 131, and the lower side and a bezel 135 is present on the upper side, and the fourth display ( 140 is a three-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the left side 141, the right side 143, and the top side and a bezel 145 is present on the bottom side. The fifth display 150 is a double-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the left side 151 and the bottom side 152, with a bezel 155 on the upper side and the right side, and the sixth display ( 160) is a double-sided bezel liquid crystal display panel in which a bezel 165 is present on the lower side and the right side, and a liquid crystal pixel line is exposed on the left side 163 and the upper side 164. The tiled display 100 shown in FIG. 7A has a structure in which the exposed liquid crystal pixel lines of the six bezel-free liquid crystal display panels 110, 120, 130, 140, 150, and 160 are connected to each other, so that a user can watch a video that is not broken or minimized in the connected portion on a large screen. have.

7B shows a tiled display 200 in which four bezel-free liquid crystal display panels 210, 220, 230, and 240 are arranged in a 2x2 form. In this case, four double-sided bezel-free liquid crystal display panels 210, 220, 230, and 240 are used. The first display 210 is a double-sided bezel-free liquid crystal display panel in which liquid crystal pixel lines are exposed to the right and bottom sides, and the second display 220 is a double-sided bezel-free liquid crystal display panel in which liquid crystal pixel lines are exposed to the right and top sides. to be. The third display 230 is a double-sided bezel-free liquid crystal display panel in which liquid crystal pixel lines are exposed to the left side and the bottom side, and the fourth display 240 is a double-sided bezel-free liquid crystal in which liquid crystal pixel lines are exposed to the left and top sides. It is a display panel. 4B, reference numerals 215, 225, 235, and 245 denote bezels of the first to fourth displays 210, 220, 230, and 240, respectively.

7C shows a tiled display 300 in which three bezel-free liquid crystal display panels 310, 320, and 330 are arranged in the form of 1x3. In this case, two single-sided bezel-free liquid crystal display panels 310 and 330 and one double-sided bezel-free liquid crystal display panel 320 are used. The first display 310 is a single-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the right side, and the second display 320 is a double-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the left side and right side. The 3 display 330 is a single-sided bezel-free liquid crystal display panel in which a liquid crystal pixel line is exposed to the left side. In FIG. 7C, reference numerals 315,325, and 335 denote bezels of the first to third displays 310, 320, and 330, respectively.

7D is a tiled display 400 in which two bezel-free liquid crystal display panels 410 and 420 are arranged in the form of 1x2. In this case, two cross-section bezel-free liquid crystal display panels 410 and 420 are used. The first display 410 is a single-sided bezel liquid crystal display panel in which a liquid crystal pixel line is exposed to the right side 411, and the second display 420 is a single-sided bezel liquid crystal display in which a liquid crystal pixel line is exposed to the left side 421. It is a panel. 7D, reference numerals 415 and 425 denote bezels of the first and second displays 410 and 420, respectively.

In the tiled displays 100, 200, 300, and 400 of FIGS. 7A to 7D, portions where two bezel-free liquid crystal display panels 81 and 82 contact each other may be supported using a connecting member 80 as illustrated in FIG. 8. The connecting member 80 may be formed in a form in which a groove 80-2 into which one side of the liquid crystal display panels 81 and 82 can be inserted is formed in the square block 80-1. At this time, the connection member 80 is installed so as not to interfere with the upper housing constituting the bezel-free liquid crystal display device. When the connecting member 80 is used as shown in FIG. 8, the two liquid crystal display panels 81 and 82 can be stably connected.

9 is a tiled display 500 in which 9 bezel-free liquid crystal display devices are arranged in the form of 3x3. In this case, four double-sided bezel-free liquid crystal display panels (510,530,550,570) and five three-sided bezel-free liquid crystal display panels (520, 540,560,580,590) are used. The first, third, fifth, and seventh displays 510, 530, 550, and 570 are double-sided, bezel-free liquid crystal display panels in which bezels 515, 535, 555, and 575 are present on both sides and liquid crystal pixel lines are exposed on the other sides. The second, fourth, sixth, and eighth displays 520, 540, 560, and 580 are three-sided bezel-free liquid crystal display panels in which bezels 525, 545, 565, and 585 are present on only one side and liquid crystal pixel lines are exposed on the other three sides. In addition, the ninth display 590 located at the center is also a three-sided bezel-free liquid crystal display panel in which the bezel 595 is present on only one side and the liquid crystal pixel lines are exposed on the other three sides. Therefore, in order to minimize the breakage of the image in the bezel portion 595 of the ninth display 590, an optical member such as a lens or a sub-display may be installed in the bezel portion 595. The tiled display 500 shown in FIG. 9 is a structure in which the exposed liquid crystal pixel lines of the nine bezel-free liquid crystal display panels 510, 520, 530, 540, 550, 560, 570, 580, 590 are connected to each other, so that a user can watch a video on which a break is minimized in a connected portion on a large screen .

Hereinafter, a method of manufacturing the bezel-free liquid crystal display panel as described above will be described with reference to FIGS. 10 and 11.

The bezel-free liquid crystal display panel may be manufactured using a liquid crystal display panel having a gate portion on both sides or a liquid crystal display panel having a gate portion on only one side.

10 is a view for explaining a method of making a single-sided liquid crystal display panel using a liquid crystal display panel having a gate portion on both sides, and FIG. 11 is a single-sided bezel using a liquid crystal display panel having a gate portion on only one side. It is a diagram for explaining a method of making a liquid crystal display panel.

A process of manufacturing a single-sided bezel-free liquid crystal display panel using the liquid crystal display panels 610 having gate portions 611 and 612 on both sides will be described with reference to FIG. 10.

First, a liquid crystal display panel 610 having gate portions 611 and 612 on both sides is prepared as shown in FIG. 10( a ). Subsequently, a portion of the upper polarizing member 613 is peeled off from one side to expose the liquid crystal pixel as shown in FIG. At this time, the upper polarizing member 613 is peeled off the liquid crystal display panel 610 by a width corresponding to the width of the black matrix. In FIG. 10(b), 613a represents a portion where the upper polarizing member 613 is peeled off. Next, as shown in FIG. 10(c), a portion of the upper polarizing member 613 is stripped along the arrow 615 to expose the outermost liquid crystal pixel line at one end of the liquid crystal display panel 610. Thereafter, sealing the side 616 of the exposed liquid crystal pixel line as shown in FIG. 10(d), the fabrication of the single-sided bezel-free liquid crystal display panel 610' is completed. Therefore, the single-sided bezel-free liquid crystal display panel 610' manufactured as shown in FIG. 10(d) is connected to the source drive integrated circuit installed in the upper source portion 617 and the gate drive integrated circuit installed in the left gate portion 611. Can be driven by.

A process of manufacturing a single-sided bezel-free liquid crystal display panel using a liquid crystal display panel having a gate portion on one side will be described with reference to FIG. 11.

First, a liquid crystal display panel 620 having a gate portion 621 on one side is prepared as shown in FIG. 11(a). At this time, the liquid crystal display panel 620 is a state in which the color filter 623 and the upper polarizing member 624 are not installed. That is, the liquid crystal display panel 620 is a lower liquid crystal display panel composed of a lower polarizing member and a liquid crystal layer. In addition, since the side portion 622 which becomes a black matrix of a certain width in which a gate line can be formed exists on the side without the gate portion of the lower liquid crystal display panel 620, the outermost liquid crystal pixel line is not exposed to the outside. Subsequently, as shown in FIG. 11( b ), the color filter 623 from which the portion corresponding to the black matrix is removed is attached to the top of the liquid crystal layer. At this time, a sealing agent is previously applied to the liquid crystal layer so that the color filter 623 is attached to the liquid crystal layer. Then, the side portion 622 of the lower liquid crystal display panel 620 to which the color filter 623 is not attached is exposed as shown in FIG. 11(c). Next, as shown in FIG. 11(c), the lower side of the liquid crystal display panel 620 is cut by cutting the lower liquid crystal display panel 620 along the side of the color filter 623 from which the black matrix is removed, that is, the arrow 625. The outer liquid crystal pixel line 626 is exposed. Thereafter, the upper polarizing member 624 is attached to the upper surface of the color filter 623 as shown in FIG. 11(d). Then, when the exposed liquid crystal pixel line 626 is sealed, manufacturing of the single-sided bezel-free liquid crystal display panel 620' is completed. Accordingly, the single-sided bezel-free liquid crystal display panel 620' manufactured as described above is driven by a source drive integrated circuit installed in the upper source portion 627 and a gate drive integrated circuit installed in the left gate portion 621. Can.

As described above, a single-sided bezel-free liquid crystal display panel in which liquid crystal pixels are exposed to one side and a double-sided bezel-free liquid crystal display panel in which liquid crystal pixels are exposed in one side and a lower side or an upper side have a color filter in which one side of the black matrix is cut. Is used. However, in the case of a double-sided bezel-free liquid crystal display panel in which liquid crystal pixels on the left and right sides are exposed, a color filter in which the left and right black matrix parts are cut is used.

Hereinafter, a driving structure of the liquid crystal pixel of the bezel-free liquid crystal display panel will be described in detail with reference to FIGS. 12 to 14.

12 is a view showing the arrangement of source and gate drive integrated circuits of a single-sided bezel-free liquid crystal display panel. At this time, the liquid crystal layer 711 is exposed by removing the upper polarizing member, the color filter, and the bezel from the liquid crystal display panel 710. In FIG. 12, only the liquid crystal pixel 712 is partially shown for convenience of illustration. Referring to FIG. 8, a source drive integrated circuit 713 is provided on the upper portion of the liquid crystal layer 711, and a gate drive integrated circuit 715 is provided on the left side of the liquid crystal layer 711. The source drive integrated circuit 713 and the gate drive integrated circuit 715 are connected to each liquid crystal pixel 712 through the source line 714 and the gate line 716. In FIG. 12, the source drive integrated circuit 713 is installed on the upper side of the liquid crystal layer 711, and the gate drive integrated circuit 715 is installed on the left side of the liquid crystal layer 711, but the source drive integrated circuit is shown. 713 is installed on the lower portion of the liquid crystal layer 711, and the gate drive integrated circuit 715 may be installed on the right portion of the liquid crystal layer 711.

The double-sided bezel-free liquid crystal display panel may also have source and gate drive integrated circuits disposed in the same manner as the single-sided bezel-free liquid crystal display panel 710 described above. However, the double-sided bezel-free liquid crystal display panel in which the liquid crystal pixel lines are exposed to the left and right sides cannot have the source and gate drive integrated circuits 713 and 715 in a structure as shown in FIG. 12.

The source and gate drive integrated circuits of the double-sided bezel-free liquid crystal display panel 20 in which the liquid crystal pixel lines are exposed to the left and right sides 21 and 23 as shown in FIG. 2E are arranged as shown in FIG. 13. Specifically, referring to FIG. 13, the double-sided bezel-free liquid crystal display panel 720 is provided with a source drive integrated circuit 723 at an upper portion of the liquid crystal layer 721 and a gate drive at a lower portion of the liquid crystal layer 721. Integrated circuit 725 is installed. The liquid crystal pixels are connected to the source drive integrated circuit 723 and the gate drive integrated circuit 725 through the source line 724 and the gate line 726.

The three-sided bezel-free liquid crystal display panel 730 may be provided with a source and gate drive integrated circuit 733 on only one side of the liquid crystal layer. For example, as illustrated in FIG. 14, both the source and gate drive integrated circuit 733 may be disposed on the upper side of the liquid crystal layer 731. In the case of the liquid crystal layer 731 having a structure in which the source drive integrated circuit and the gate drive integrated circuit are installed on the same side as described above, the source and gate drive integrated circuit 733 and the liquid crystal pixel 732 may be connected in two ways. .

One example is to connect the source drive integrated circuit and the gate drive integrated circuit with a plurality of liquid crystal pixels 732-1,732-2,732-3 as shown in FIG. Specifically, a plurality of gate lines (G1, G2, G3...) connecting the gate drive integrated circuit wired left and right and the plurality of liquid crystal pixels 732-1,732-2,732-3 are sequentially connected to the upper side. It is a structure to form and connect. At this time, the plurality of source lines S1, S2, S3, S4... connecting the source drive integrated circuit and the plurality of liquid crystal pixels 732-1,732-2,732-3 are wired up and down. In this case, when one gate line (eg, G1) is turned on, one line of liquid crystal pixels 732-1 connected to the gate line G1 is operated.

Another example is to connect the source drive integrated circuit and the gate drive integrated circuit with a plurality of liquid crystal pixels 732-1,732-2,732-3,732-4 as shown in FIG. Specifically, a plurality of gate lines (G1, G2, G3, G4...) connecting the gate drive integrated circuit wired left and right and the plurality of liquid crystal pixels 732-1,732-2,732-3,732-4 are sequentially upwards. It is a structure that connects by forming a connecting line with a negative. At this time, the gate line is a structure arranged one by one between two rows of liquid crystal pixel lines 732-1 and 732-2 arranged in a horizontal direction, and the above-described example in which one gate line is disposed in one line of liquid crystal pixel lines And different. Further, a plurality of source lines S1, S2, S3, S4, S5... connecting the source drive integrated circuit and the plurality of liquid crystal pixels 732-1,732-2,732-3,732-4 are wired up and down. Accordingly, when one gate line (for example, G1) is turned on, two lines of liquid crystal pixel lines 732-1 and 732-2 connected to the gate line operate. When the gate line is wired in such a structure, the operation speed of the liquid crystal display panel can be increased.

Hereinafter, a method for connecting the bezel-free liquid crystal display devices according to an embodiment of the present invention will be described in detail with reference to FIGS. 17A and 17B.

17A is a cross-sectional view schematically showing a state immediately before connecting two bezel-free liquid crystal display devices, and FIG. 17B is a cross-sectional view schematically showing a state in which two bezel-free liquid crystal display devices are connected.

The bezel-free liquid crystal display panel 810 is combined with a backlight unit 820 installed at the bottom to form a bezel-free liquid crystal display device 801,802. In the backlight unit 820, a plurality of LEDs (Light Emitting Diodes) 823 are installed at equal intervals on the bottom surface 821 as shown in FIG. 17A. A diffuser plate 830 is installed above the LED 823 of the backlight unit 820. The inner surface of the bottom plate 821 on which the LED 823 of the backlight unit 820 is installed is a reflecting plate, and is formed so that light does not leak to the rear surface of the backlight unit 820. A bezel-free liquid crystal display panel 810 is installed above the diffuser plate 830 of the backlight unit 820. A detachable cover 840 is provided on the side 816 of the liquid crystal pixel of the bezel-free liquid crystal display panel 810 and the side 826 of the backlight unit 820 corresponding thereto. The cover 840 is formed of rubber, plastic, metal, or the like to easily peel off the side of which the liquid crystal pixels of the bezel-free liquid crystal display devices 801 and 802 are exposed. In FIG. 17A, the bezel-free liquid crystal display device 801 on the right side shows a state in which the cover 840 is separated from the side 816 to which the liquid crystal pixels are exposed.

A single-sided bezel-free liquid crystal display device having a single-sided bezel-free liquid crystal display panel is provided with a cover so as to cover one side of the liquid crystal pixel. A double-sided bezel-free liquid crystal display device in which a double-sided bezel-free liquid crystal display panel is installed is provided with a cover so as to cover two side surfaces of the liquid crystal pixels. The three-sided bezel-free liquid crystal display device on which the three-sided bezel-free liquid crystal display panel is installed is provided with a cover so as to cover three side surfaces of the liquid crystal pixels.

If the two-sided bezel-free liquid crystal display devices 801 and 802 are to be connected, after removing the cover 840, as shown in FIG. 17B, one side 816 from which the cover 840 has been peeled off is brought into contact with each other. When the two bezel-free liquid crystal display devices 801 and 802 are connected as described above, since the two liquid crystal display panels 810 are continuously connected without a bezel in the middle, a wide seamless screen can be realized. At this time, the distance (d) between the outermost LEDs 823-1,823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LEDs 823-1,823- of the first bezel-free liquid crystal display device 801. 2) Since the interval d1 is equal to the interval d2 between the distance d1 and the LEDs 823'-1,823'-2 of the second non-bezel liquid crystal display device (i.e., d=d1=d2), The same amount of light as the liquid crystal pixels of other parts can be supplied to the liquid crystal pixels.

In the above, a method of connecting two exposed liquid crystal pixels of the two bezel-free liquid crystal display devices 801 and 802 by contacting each other has been described, but the method of connecting the bezel-free liquid crystal display device is not limited thereto. Two bezel-free liquid crystal display devices may be connected by overlapping the bezel-free liquid crystal display panel. Hereinafter, a structure in which two bezel-free liquid crystal display devices are connected in the form of overlapping two bezel-free liquid crystal display panels will be described with reference to FIGS. 18 to 25. Although the thickness of the bezel-free liquid crystal display panel 810 is very thick in FIGS. 18 to 25, since the thickness of the actual liquid crystal display panel 810 is about 1 mm or less, overlapping and connecting two liquid crystal display panels 810 It is possible. Accordingly, FIGS. 18 to 25 conceptually illustrate a connection relationship between the bezel-free liquid crystal display panel 810 and the backlight unit 820.

FIG. 18 shows a connection structure in which the liquid crystal pixel lines 811-1 and 811-2 of the two bezel-free liquid crystal display panels 810 and 810' overlap each other, that is, the outermost liquid crystal pixel lines. At this time, the second bezel-free liquid crystal display panel 810' is installed to be positioned below the first bezel-free liquid crystal display panel 810. The second non-bezel liquid crystal display panel 810' is inserted below the first non-bezel liquid crystal display panel 810 by a width w of one liquid crystal pixel 811-1, and the first non-bezel liquid crystal display panel The lower polarizing member 814 of 810 is in a state in contact with or close to the upper polarizing member 813 of the second non-bezel liquid crystal display panel 810'. At this time, the distance (d) between the outermost LEDs 823-1, 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and Since the LED gap d2 of the second non-bezel liquid crystal display device 802 is the same (ie, d=d1=d2), the same amount of light as the liquid crystal pixels of other parts can be supplied to the liquid crystal pixels of the connected parts.

Fig. 19 shows a connection structure in which the liquid crystal pixel lines 811-1 and 811-2 of the two bezel-free liquid crystal display panels 801 and 802 overlap each other, that is, the outermost liquid crystal pixel lines. However, the first non-bezel liquid crystal display panel 801 is a state in which a portion of the lower polarizing member 814 corresponding to the outermost liquid crystal pixel line 811-1 is removed, and the second non-bezel liquid crystal display panel 802 Is a state in which the upper polarizing member 813 corresponding to the outermost liquid crystal pixel line 811-2 is removed. Accordingly, when the second non-bezel liquid crystal display panel 802 is inserted under the first non-bezel liquid crystal display panel 801 by a width w of one liquid crystal pixel, the first non-bezel liquid crystal display panel 801 The liquid crystal layer 811 and the color filter 812 of the second non-bezel liquid crystal display panel 802 are brought into contact or in close proximity. At this time, the distance (d) between the outermost LEDs 823-1, 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second non-bezel liquid crystal display device 802 is the same (ie, d=d1=d2).

FIG. 20 shows a connection structure in which the liquid crystal pixel lines 811-1 and 811-2 of the two bezel-free liquid crystal display panels 801 and 802 overlap each other, that is, the outermost liquid crystal pixel lines. However, the second non-bezel liquid crystal display panel 802 is a state in which portions of upper and lower polarizing members 813 and 814 corresponding to the outermost liquid crystal pixel lines 811-2 are removed. Accordingly, when the second non-bezel liquid crystal display panel 802 is inserted under the first non-bezel liquid crystal display panel 801 by a width w of one liquid crystal pixel, the first non-bezel liquid crystal display panel 801 The lower polarizing member 813 and the color filter 812 of the second non-bezel liquid crystal display panel 802 are brought into contact or in close proximity. At this time, the distance (d) between the outermost LEDs 823-1, 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second bezel-free liquid crystal display device 802 is the same (ie, d=d1=d2).

FIG. 21 shows a connection structure of the two bezel-free liquid crystal display panels 801 and 802 overlapping the dummy panel 850 installed on the exposed side of the liquid crystal pixels and the outermost liquid crystal pixel lines 811-1.811-2. Here, the dummy panel 850 is formed on one side of the outermost liquid crystal pixel lines 811-1 and 811-2 with a transparent material to seal the exposed liquid crystal pixels. Although the width of the dummy panel 850 is illustrated in FIG. 21 as a size corresponding to the width w of one liquid crystal pixel, the width of the dummy panel 850 is not limited thereto. The dummy panel 850 may be formed to be larger or smaller than the width of the liquid crystal pixels as long as the outermost liquid crystal pixel lines 811-1 and 811-2 can be sealed. Accordingly, the dummy panel 850 of the second bezel-free liquid crystal display panel 802 is inserted under the first bezel-free liquid crystal display panel 801. At this time, an end of the outermost liquid crystal pixel line 811-2 of the second bezel-free liquid crystal display panel 802 and an end of the outermost liquid crystal pixel line 811-1 of the first bezel-free liquid crystal display panel 801 Insert until it matches. In this case, since the dummy panel 850 positioned above the outermost liquid crystal pixel line 811-2 of the second non-bezel liquid crystal display panel 802 is transparent, the outermost portion of the second non-bezel liquid crystal display panel 802 is transparent. You can see the image output from the liquid crystal pixel line 811-2. In addition, the distance (d) between the outermost LEDs 823-1 and 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second non-bezel liquid crystal display device 802 is the same (ie, d=d1=d2).

22 shows a connection structure in which the sealing portions 860 and the outermost liquid crystal pixel lines 811-1 and 811-2 of the two bezel-free liquid crystal display panels 801 and 802 overlap each other. Here, the sealing unit 860 refers to a portion sealing the exposed side surfaces of the outermost liquid crystal pixel lines 811-1 and 811-2 with a transparent sealing agent to seal the exposed liquid crystal pixels. Although the width of the sealing portion 860 is illustrated in FIG. 22 as a size corresponding to the width of one liquid crystal pixel, the width of the sealing portion 860 is not limited thereto. The sealing unit 860 may be formed to be larger or smaller than the width of the liquid crystal pixels as long as the outermost liquid crystal pixel lines 811-1 and 811-2 can be sealed. The sealing portion 860 of the second bezel-free liquid crystal display panel 820 is inserted under the first bezel-free liquid crystal display panel 810. In this case, the end of the outermost liquid crystal pixel line 811-2 of the second bezel-free liquid crystal display panel 810' is the end of the outermost liquid crystal pixel line 811-2 of the first bezel-free liquid crystal display panel 810. Insert until it matches. In this case, since the sealing portion 860 positioned above the outermost liquid crystal pixel line 811-2 of the second bezel-free liquid crystal display panel 810' is transparent, the second bezel-free liquid crystal display panel 810' The image output from the outermost liquid crystal pixel line 811-2 can be seen. In addition, the distance (d) between the outermost LEDs 823-1 and 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second non-bezel liquid crystal display device 802 is the same (ie, d=d1=d2).

23 is a connection structure similar to the connection structure of the bezel-free liquid crystal display devices 801 and 802 of FIG. 22, but the insertion depth of the second bezel-free liquid crystal display panel 810' is different. Specifically, in the case of FIG. 22, the outermost liquid crystal pixel lines 811-1 and 811-2 of the two bezel-free liquid crystal display panels 810.810' do not overlap each other, but in the case of FIG. 23, two bezel-free liquid crystal displays The second bezel liquid crystal display panel 810' is inserted under the first bezel liquid crystal display panel 810 so that the outermost liquid crystal pixel lines 811-1 and 811-2 of the panels 810 and 810' may overlap each other. . Therefore, the sealing portion 860 of the first non-bezel liquid crystal display panel 810 is located above the inner liquid crystal pixel line of the second non-bezel liquid crystal display panel 810', and the second non-bezel liquid crystal display panel 810' The sealing portion of) is located below the inner liquid crystal pixel line of the first non-bezel liquid crystal display panel 810. In addition, the distance (d) between the outermost LEDs 823-1 and 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second bezel-free liquid crystal display device 802 is the same (ie, d=d1=d2).

FIG. 24 shows a connection structure similar to the connection structure of the bezel-free liquid crystal display devices 801 and 802 of FIG. 22, but the arrangement of the second bezel-free liquid crystal display panel 810' is different. Specifically, the second bezel-free liquid crystal display panel 810' is a state in which the first bezel-free liquid crystal display panel 810 is rotated 180 degrees. Then, as shown in FIG. 24, the red pixels, green pixels, and blue that constitute the outermost liquid crystal pixels 811-1,811-2 of the two bezel-free liquid crystal display panels 810,810' The arrangement order of the blue pixels (hereinafter referred to as RGB pixels) is the same. For example, if the arrangement of the RGB pixels of the outermost liquid crystal pixel 811-1 of the first non-bezel liquid crystal display panel 810 is in the order of red, green, and blue, the second non-bezel liquid crystal display panel 810' The arrangement of the RGB pixels of the outermost liquid crystal pixel 811-2 is also in order of red, green, and blue.

At this time, the sealing portion 860 of the second non-bezel liquid crystal display panel 810' is inserted under the first non-bezel liquid crystal display panel 810. In addition, an end of the outermost liquid crystal pixel line 811-2 of the second non-bezel liquid crystal display panel 810' is an end of the outermost liquid crystal pixel line 811-1 of the first bezel liquid crystal display panel 810. Insert until it matches. In addition, the distance d between the outermost LEDs 823-1,823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second bezel-free liquid crystal display device 802 is the same (ie, d=d1=d2).

25 is a connection structure similar to the connection structure of the bezel-free liquid crystal display devices 801 and 802 of FIG. 24, but the insertion depth of the second bezel-free liquid crystal display panel 810' is different. Specifically, in the case of FIG. 24, the outermost liquid crystal pixel lines 811-1 and 811-2 of the two bezel-free liquid crystal display panels 810 and 810' do not overlap each other, but in the case of FIG. 25, the two bezel-free liquid crystal displays The second bezel liquid crystal display panel 810' is the first bezel liquid crystal display panel 810 so that the last pixel of the RGB pixels of the outermost liquid crystal pixel lines 811-1,811-2 of the panels 810,810' can overlap each other. ). For example, when the last pixel among the RGB pixels of the outermost liquid crystal pixel line 811-1 is a blue pixel, the second bezel-free liquid crystal display panel 810' may have a first bezel liquid crystal so that only blue pixels can overlap. It is inserted under the display panel 810. Therefore, the sealing portion 860 of the first non-bezel liquid crystal display panel 810 is located above the second non-bezel liquid crystal display panel 810', and the sealing portion of the second non-bezel liquid crystal display panel 810' ( 860) is located under the first bezel-free liquid crystal display panel 810. In addition, the distance (d) between the outermost LEDs 823-1 and 823'-1 of the two bezel-free liquid crystal display devices 801 and 802 connected to each other is the LED spacing d1 of the first bezel-free liquid crystal display device 801 and The LED gap d2 of the second non-bezel liquid crystal display device 802 is the same (ie, d=d1=d2).

In the above description, when the two bezel-free liquid crystal display devices are connected, FIGS. 17A to 25 illustrate an example in which a bezel-free liquid crystal display device is applied with a direct type backlight unit in which an LED is installed directly under the panel. As another example, the edge type backlight unit in which the LED is installed on the side of the backlight unit may be applied in the same way.

In FIG. 10, a case in which a bezel-free liquid crystal display panel 610 ′ is manufactured using the liquid crystal display panels 610 having gate portions 611 and 612 on both sides has been described. When manufacturing by cutting the liquid crystal display panel as described above, it is preferable to cut only the same side surface of the liquid crystal display for production efficiency and use it to make the necessary bezel-free liquid crystal display panel. For example, if only the right side of all liquid crystal display panels are cut, the bezel-free liquid crystal display panel in which the left side should be a cut surface can be made using a bezel-free liquid crystal display panel with the right side cut off. To this end, the liquid crystal layer is rotated 180 degrees. At this time, the upper and lower polarizing members attached to the upper and lower surfaces of the liquid crystal layer do not rotate together so that the polarization components of light emitted from the liquid crystal display panel are the same.

Hereinafter, a method of installing a 2X2 tiled display using a bezel-free liquid crystal display panel in which the right side and the lower side are cut will be described with reference to FIG. 26.

First, four double-sided bezel-free liquid crystal display panels 901 in which the right side 911 and the lower side 912 are cut are prepared.

The first bezel-free liquid crystal display panel 901 uses a double-sided bezel-free liquid crystal display panel in which the right side 911 and the lower side 912 are cut. At this time, the upper polarizing member 921 is configured to pass only light in the vertical direction, and the lower polarizing member 922 is configured to pass only light in the horizontal direction. In Fig. 26, arrows indicate polarization directions.

The second non-bezel liquid crystal display panel 902 rotates only the liquid crystal layer 910 180 degrees while leaving the upper polarizing member 921 and the lower polarizing member 902 intact. That is, the source portion 913 on the upper side is positioned as it is, and the liquid crystal layer 910 is rotated 180 degrees around the X axis so that the gate portion 911 on the left side is located on the right side, and the upper and lower surfaces of the rotated liquid crystal layer 910 are rotated. The upper polarizing member 921 and the lower polarizing member 922 are attached to each. Then, the image displayed on the second bezel-free liquid crystal display panel 902 is inverted left and right. Therefore, when the left and right inverted images are input to the second non-bezel liquid crystal display panel 902, the images that are not inverted left and right are displayed.

The third bezel liquid crystal display panel 903 rotates the first bezel liquid crystal display panel 901 180 degrees clockwise around the Z axis. Also in this case, since the image displayed on the third non-bezel liquid crystal display panel 903 is inverted left and right, an inverted left and right image is input to the third non-bezel liquid crystal display panel 903.

The fourth non-bezel liquid crystal display panel 904 makes the first non-bezel liquid crystal display panel 901 the same as the second non-bezel liquid crystal display panel 902 and then the second non-bezel liquid crystal display panel 902 on the Z axis. Rotate 180 degrees clockwise to the center. In this case, since the image displayed on the fourth bezel-free liquid crystal display panel 904 is not inverted left and right, unlike the second bezel-free liquid crystal display panel 902, the left and right inverted images can be input to the fourth bezel-free liquid crystal display panel. no need.

As described above, according to the present invention, since one type of bezel-free liquid crystal display panel 901 is manufactured, various types of bezel-free liquid crystal display panels 902, 903, and 904 can be manufactured using the same, and thus there is an advantage in convenience in manufacturing.

In addition, the bezel-free liquid crystal display device according to an embodiment of the present invention can install a position detection sensor capable of detecting the position of another bezel-free liquid crystal display device to be connected to the rear of the bezel-free liquid crystal display device for convenience of connection. have.

27 is a view for explaining the operation of the position detection sensor installed on the rear of the bezel-free liquid crystal display device.

Referring to FIG. 27, four position detection sensors 1001 may be installed at four corners of the rear side of the bezel-free liquid crystal display device 1000. The four position detection sensors 1001 may detect other bezel-free liquid crystal display devices 1000 connected to the top, bottom, and left and right sides of the bezel-free liquid crystal display device 1000. Four position detection sensors 1001 are also installed on the rear of the other bezel-free liquid crystal display device 1000 installed around the bezel-free liquid crystal display device 1000. Therefore, when an infrared sensor or a laser sensor is used as the position detection sensor 1001, a position between two bezel-free liquid crystal display devices 1000 to be connected can be detected. The user monitors the positions between the two bezel-free liquid crystal display devices 1000 output from the position detection sensor 1001, specifically, the two bezel-free liquid crystal display devices 1000 while monitoring the distances in the up, down, left, and right and back directions. You can connect correctly.

In FIG. 27, the case where four of the position detection sensors 1001 are installed at the rear edge of the bezel-free liquid crystal display device 1000 has been described, but the position detection sensor 1001 is not limited thereto. As another example, as illustrated in FIG. 27, one position detection sensor 1002 may be installed at the center of the rear surface of the bezel-free liquid crystal display device 1000. In this case, the position detection sensor 1002 installed in the center is configured to detect the positions of other bezel-free liquid crystal display devices 1000 to be connected by emitting infrared rays or lasers up and down and left and right.

Hereinafter, a method of connecting a bezel-free liquid crystal display device having a position detection sensor will be described with reference to FIGS. 29 and 30. At this time, the bezel-free liquid crystal display device may be a flat-panel television or a flat-panel monitor.

29 is a view showing a bezel-free liquid crystal display device having a position detection sensor according to an embodiment of the present invention, and FIG. 30 is a view showing a process of automatically connecting the two bezel-free liquid crystal display devices shown in FIG. It is a top view.

The bezel-free liquid crystal display device 1010 includes a bezel-free liquid crystal display panel 1020 and a housing 1030 that supports and fixes a backlight unit (not shown). A position detection sensor 1001 for detecting the position of another bezel-free liquid crystal display device 1010' to be connected to the left or right side of the bezel-free liquid crystal display panel 1020 is installed on the rear surface of the housing 1030. In addition, a stand 1040 for vertically supporting the housing 1030 with respect to the bottom surface is installed under the housing 1030.

Between the housing 1030 and the stand 1040, a moving unit 1050 capable of moving the housing 1030 may be further installed. The moving unit 1050 is configured to linearly move the housing 1030 in the front-rear direction, up-down direction, or left-right direction. Here, the front-rear direction means a direction perpendicular to the drawing in FIG. 29. In addition, the moving unit 1050 may be configured to move the housing 1030 in the front-rear direction, up-down direction, or left-right direction according to the signal of the position detection sensor 1001. Since such a moving unit 1050 capable of linearly moving the housing 1030 in the front-rear, up-down, and left-right directions can be implemented using a conventional technique, a detailed description thereof will be omitted here. In addition, the bezel-free liquid crystal display device 1010, 1010' controls the moving unit 1050 using the signal of the position detection sensor 1001 to move the housing 1030 in which the bezel-free liquid crystal display panel 1020 is accommodated. It may include a control unit (not shown). The controller may output a connection pattern 1101 (refer to FIG. 31) to check the connection state of the two bezel-free liquid crystal display panels 1020 on the screen of the liquid crystal display panel 1020. Such a control unit may be formed integrally or separately from a conventional control device that controls to output an image to the bezel-free liquid crystal display panel 1020.

In FIG. 29, since the first bezel-free liquid crystal display device 1010 is a single-sided bezel-free liquid crystal display device in which the right side surface 1011 is cut, two position detection sensors 1001 are installed on the rear right side of the housing 1030. Since the second bezel-free liquid crystal display device 1010' is a double-sided bezel-free liquid crystal display device in which left and right sides 1011' and 1012' are cut, four position detection sensors 1001 are installed on the rear surface of the housing 1030. .

When connecting the two bezel-free liquid crystal display devices 1010 and 1010', the user places the two bezel-free liquid crystal display devices 1010 and 1010' at a constant distance as shown in FIG. At this time, the distance between the two bezel-free liquid crystal display devices 1010 and 1010' is preferably equal to or less than the maximum distance that the mobile unit 1050 can move in the left and right directions.

Then, the control unit of the first non-bezel liquid crystal display device 1010 outputs infrared light from the position detection sensor 1001 to detect the position of the second non-bezel liquid crystal display device 1010'. 30(a), when the second bezel-free liquid crystal display device 1010' is projected forward and spaced a certain distance to the right, based on the first bezel-free liquid crystal display device 1010, the first mu The control unit of the bezel liquid crystal display device 1010 controls the mobile unit 1050 so that the housing 1030 of the first non-bezel liquid crystal display device 1010 moves forward, so that the first and second bezel liquid crystal display devices ( 1010, 1010') so that the front surfaces 1021, 1021' of the liquid crystal display panel coincide. Thereafter, the control unit controls the moving unit 1050 of the first non-bezel liquid crystal display device 1010 so that the housing 1030 of the first non-bezel liquid crystal display device 1010 moves to the right, so that the first non-bezel liquid crystal The right side 1011 of the display device 1010 is brought into contact with the left side 1012' of the second bezel-free liquid crystal display device 1010'. Then, two bezel-free liquid crystal display devices 1010 and 1010' are correctly connected as shown in FIG. 30C. In the above, the case where the first bezel liquid crystal display device 1010 moves has been described, but the second bezel liquid crystal display device 1010' moves to move the first and second bezel liquid crystal display devices 1010 and 1010'. ). Alternatively, the first and second bezel-free liquid crystal display devices 1010 and 1010' may be moved to connect the first and second bezel-free liquid crystal display devices 1010 and 1010'.

In the above, a method of connecting two bezel-free liquid crystal display devices 1010 and 1010' has been described, but when connecting three bezel-free liquid crystal display devices, one side of the second bezel-free liquid crystal display device 1010' The third non-bezel liquid crystal display device is moved to the second non-bezel liquid crystal display device by placing the third non-bezel liquid crystal display device (not shown) on the screen and moving the housing of the third non-bezel liquid crystal display device using the position detection sensor 1001. Device 1010'.

In the above, the case of automatically connecting the two bezel-free liquid crystal display devices 1010 and 1010' has been described, but the two bezel-free liquid crystal display devices can also be manually connected. In this case, the mobile unit 1050 does not exist between the stand 1040 and the housing 1030.

In this case, the position detection sensor 1001 detects the position of the second bezel-free liquid crystal display device 1010' based on the first bezel-free liquid crystal display device 1010, and the control unit uses this sensor information to inform the user A location to move the second bezel-free liquid crystal display device 1010' may be provided by voice. For example, the control unit may inform the user with the sound,'Move the bezel-free liquid crystal display device on the right side from the current position 5 cm to the left'.

Thereafter, the control unit outputs connection patterns 1101 and 1101' as shown in FIG. 31 on the screens of the first and second bezel liquid crystal display devices 1010 and 1010'. Then, the user can more accurately connect the first and second bezel-free liquid crystal display devices 1010 and 1010' using the connection patterns 1101 and 1101'. The connection patterns 1101 and 1101' may be formed by a plurality of straight lines drawn in a horizontal direction with white lines on a black background. Accordingly, when the first and second bezel-free liquid crystal display devices 1010 and 1010' are not correctly connected, a step is generated on the surface 1100 connecting patterns 1101 and 1101'.

For example, when the user manually connects the first and second bezel-free liquid crystal display devices 1010 and 1010', if the connection is incorrect, the first and second bezel-free liquid crystal display devices as shown in FIG. A step is generated vertically between the connection patterns 1101 and 1101' output on the screen of (1010, 1010'). Accordingly, the user may remove the first bezel liquid crystal display device 1010 so that the step difference between the connection patterns 1101 and 1101' output to the first and second bezel liquid crystal display devices 1010 and 1010' is eliminated. The second non-bezel liquid crystal display device 1010' is moved. When the two connection patterns 1101 and 1101' displayed on the first and second bezel-free liquid crystal display devices 1010 and 1010' form a straight line without a step as shown in FIG. 31, the first and second bezel-free liquid crystal display The devices 1010 and 1010' are correctly connected.

However, if the user does not correctly connect the first and second bezel-free liquid crystal display devices 1010 and 1010' as shown in FIG. 31, and connects them in an up and down twisted state as shown in FIG. 2 The control unit of the bezel-free liquid crystal display devices 1010 and 1010' can detect the amount of the first and second bezel liquid crystal display devices 1010 and 1010' that are shifted up and down by using the position detection sensor 1001. have. In addition, the control unit may calculate the size of pixels in which the liquid crystal display panels of the first and second bezel liquid crystal display devices 1010 and 1010' are shifted by using the detected amount of shift. Accordingly, as illustrated in FIG. 33, the control unit displays the pixel portions 1111b and 1111'b shifted from the liquid crystal display panels 1020 and 1020' of the first and second bezel liquid crystal display devices 1010 and 1010'. It is possible to display the image by counting only the pixel portions 1111a and 1111'a that are connected to each other as an effective region for displaying the image. Then, the user can view the uninterrupted image even when the first and second non-bezel liquid crystal display devices 1010 and 1010' are not correctly connected up and down.

In the above, the present invention has been described by way of example. The terms used herein are for illustrative purposes and should not be understood in a limiting sense. Various modifications and variations of the present invention are possible according to the above. Accordingly, the present invention may be freely implemented within the scope of the claims unless otherwise specified.

10; Single-sided bezel liquid crystal display pixel 15; Bezel
20; A double-sided bezel liquid crystal display device 25; Bezel
30; Three-sided bezel-free liquid crystal display device 35; Bezel
100,200,300,400,500; Tiled display
610; Liquid crystal display panels 611,612,621; Gate part
613,624; Upper polarizing member 617,627; Source part
620; Lower liquid crystal display panel 623; Color filter
710,720,730; Liquid crystal display panel
711,721,731; Liquid crystal layer 712,722,732; LCD pixel
713,723,733; Source drive integrated circuit
715,725,735; Gate drive integrated circuit
801,802; No-bezel LCD display device
810,810'; No-Bezel LCD Display Panel
811; Liquid crystal layer 812; Color filter
813; Upper polarizing member 814; Lower polarization member
820; Backlight unit 823,823'; LED
840; Cover 850; Dummy panel
860; Sealing
901,902,903,904; No-Bezel LCD Display Panel
910; Liquid crystal layer 921; Upper polarizing member
922; Lower polarization member
1000,1010,1010'; No-bezel LCD display device
1001,1002; Position detection sensor 1030; housing
1040; Stand 1050; Mobile unit
1101,1101'; Connection pattern

Claims (20)

A plurality of bezelless liquid crystal display panels formed such that liquid crystal pixels are exposed to at least one side of an upper side, a lower side, a left side, and a right side; And
Included in the plurality of backlight units that are installed under each of the plurality of bezel-free liquid crystal display panels and emit light.
The plurality of bezel-free liquid crystal display panels are installed such that side surfaces to which the liquid crystal pixels are exposed contact each other,
Each of the plurality of backlight units includes a plurality of LEDs (LEDs) that illuminate the bezel-free liquid crystal display panel, and the plurality of LEDs are installed at equal intervals, and the plurality of bezel-free liquid crystal display panels are provided. Two adjacent LEDs are installed evenly in contact with each other to maintain equal spacing.
A tiled display characterized in that the interval between exposed liquid crystal pixels and the interval between unexposed liquid crystal pixels are the same. According to claim 1,
A tiled display, characterized in that at least one of the plurality of bezel-free liquid crystal display panels is a single-sided bezel liquid crystal display panel formed such that the liquid crystal pixels are exposed on a left side or a right side. According to claim 2,
The single-sided bezel liquid crystal display panel is a tiled display, characterized in that the gate drive integrated circuit (gate drive IC) is installed on the right side or the left side. According to claim 2,
The single-sided bezel liquid crystal display panel includes a color filter having no black matrix at the left end or the right end. According to claim 1,
A tiled display, wherein at least one of the plurality of bezel-free liquid crystal display panels is a double-sided bezel-free liquid crystal display panel formed such that the liquid crystal pixels are exposed on the left and right sides. The method of claim 5,
The double-sided bezel-free liquid crystal display panel is a tiled display, characterized in that a gate drive integrated circuit (gate drive IC) and a source drive integrated circuit (source drive IC) are installed at upper and lower sides facing each other. The method of claim 5,
The double-sided bezel-free liquid crystal display panel includes a color filter without a black matrix at the left end and the right end. According to claim 1,
A tiled display, wherein at least one of the plurality of bezel-free liquid crystal display panels is a three-sided bezel-free liquid crystal display panel formed to expose the liquid crystal pixels on three sides. The method of claim 8,
The three-sided bezel-free liquid crystal display panel is a tiled display, characterized in that the gate drive integrated circuit and the source drive integrated circuit are installed on the same side. The method of claim 8,
The three-sided bezel-free liquid crystal display panel is a tiled display, characterized in that it is configured to represent a single line or two lines of images with a single gate signal. According to claim 1,
Two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels are provided so that the side surfaces where the liquid crystal pixels are exposed are in contact with each other. According to claim 1,
A tiled display characterized in that two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels are provided so that the outermost liquid crystal pixel lines on the side where the liquid crystal pixels are exposed overlap each other. The method of claim 12,
The portion of the lower polarizing member corresponding to the overlapping liquid crystal pixel line is removed from the non-bezel liquid crystal display panel positioned at the upper side, and the portion of the upper polarizing member corresponding to the overlapping liquid crystal pixel line is removed from the lower bezel liquid crystal display panel located at the lower side. Tiled display, characterized in that. According to claim 1,
The plurality of bezel-free liquid crystal display panels further includes a transparent dummy panel formed on a side where the liquid crystal pixels are exposed,
Two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels are provided so that the transparent dummy panel overlaps the exposed liquid crystal pixel lines. According to claim 1,
Each of the plurality of bezel-free liquid crystal display panels further includes a transparent sealing member that seals a side where the liquid crystal pixels are exposed, respectively.
Two adjacent bezel-free liquid crystal display panels among the plurality of bezel-free liquid crystal display panels are provided so that the transparent sealing member overlaps with the exposed liquid crystal pixel line. According to claim 1,
Each of the plurality of bezel-free liquid crystal display panels includes a tiled display comprising a position detection sensor capable of detecting a positional relationship with an adjacent bezel-free liquid crystal display panel. According to claim 2,
The single-sided bezel liquid crystal display panel is formed by cutting the gate portions of one side of the liquid crystal display panel having gate portions on both sides. A plurality of bezelless liquid crystal display panels formed such that the liquid crystal pixels are exposed to at least one side of the left and right sides;
A backlight unit installed under each of the bezel-free liquid crystal display panels and emitting light;
A housing supporting the bezel-free liquid crystal display panel and the backlight unit;
A position detection sensor installed on a rear surface of the housing and detecting a position of a bezel-free liquid crystal display device installed on the left or right side of the housing; And
It includes; a stand for supporting the housing;
The plurality of bezel-free liquid crystal display panels are installed such that side surfaces to which the liquid crystal pixels are exposed contact each other,
A bezel-free liquid crystal display device, characterized in that the interval between the exposed liquid crystal pixels and the unexposed liquid crystal pixels are the same. The method of claim 18,
The stand is further provided with a moving unit that can move the housing up and down and left and right,
The mobile unit is a bezel-free liquid crystal display device, characterized in that for moving the housing according to the signal of the position detection sensor. The method of claim 18,
And a control unit configured to output a connection pattern to the bezel-free liquid crystal display panel.

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