TWI784200B - Luminescent panel of naked-view three-dimensional display device with moiré reduction and manufacturing method of moiré reduction display - Google Patents

Abstract

This creation discloses a moiré-reducing naked-view 3D display device's light-emitting panel and a method for making a moiré-reducing display. It is characterized in that: the light-emitting panel has a plurality of installation areas, and the installation areas are arranged in a matrix, and Each of the installation areas is provided with three-color light-emitting diodes, and each of the light-emitting diodes is separated by a spacer area. The spacer areas are rectangular, and the light-emitting diodes in each of the installation areas The long sides of the equally spaced areas are parallel to the short sides of the equally spaced areas in the installation area below it. In this way, the arrangement of the interval regions between the light-emitting diodes is not the same as that of the lenticular lenses by separating and completely disconnecting the interval regions, thereby achieving the effect of eliminating moiré .

Description

Luminescent panel of naked-view three-dimensional display device with moiré reduction and manufacturing method of moiré reduction display

The invention belongs to the field of display devices, especially a light-emitting panel that can reduce moiré after being installed in a naked-view stereoscopic display device, and a manufacturing method for reducing moiré display.

By the way, with the help of many film companies, the upsurge of viewing stereoscopic images has not only driven the growth of the glasses-type 3D TV market, but also led to the development and demand of naked-eye 3D stereoscopic image display devices that do not need to wear special glasses.

Generally, naked-eye 3D stereoscopic image display technologies are mainly divided into two types, one is a lenticular lens type (Lenticular Lens), and the other is a parallax barrier type (Parallax Barrier). The lenticular lens technology mainly uses the focusing and light refraction technology of the lenticular lens to change the direction of the light and split the light, so that the image information produces a parallax effect, so that the two images are synthesized into a three-dimensional visual effect through the viewer's brain. The parallax barrier type mainly uses the linear stripes distributed at intervals between light-transmitting and opaque (black) to limit the direction of light travel, thereby allowing the image information to produce a parallax effect, allowing the two images to be synthesized into a three-dimensional visual effect through the viewer's brain.

However, both of these two stereoscopic image display technologies have the overlapping structures of two identically arranged structures, which easily cause "moire pattern" on the stereoscopic image screen, which will seriously affect the visual quality. At present, some operators want to reduce or eliminate the occurrence of moiré by changing the arrangement of the internal structure. Take the lenticular lens type three-dimensional display as an example. Some will place the lens obliquely, so as to be different from the traditional vertical or horizontal arrangement, but in this way The method will change the shape of the substrate below, Furthermore, after multiple substrates are assembled with each other, they cannot be smoothly installed into a general rectangular casing. It is necessary to order additional casings of the same shape, or cut the assembled substrates to fit the shape of the casing, and this will cause The LED installation space on the substrate is wasted; some displays choose to change the shape of the lens, but this requires multiple experiments to confirm whether the parameters such as the refraction direction and brightness of the light meet the requirements, and the manufacturing cost will also increase a lot. It is really inconvenient.

In view of this, the inventor of the present invention feels that it is not perfect, and has exhausted his mind to study it, and based on his accumulated experience in this industry for many years, and then provides a light-emitting panel and a moiré-reducing naked-view three-dimensional display device. The production method of the invention can improve the deficiency of the above-mentioned prior art in the hope of.

One object of the present invention is to provide a light-emitting panel and a moiré-reducing display production method for a three-dimensional display device that reduces moiré, which is mainly used in lenticular displays without any shape or arrangement of the lenses. In the case of modification, the moiré pattern is eliminated, thereby improving the shortcomings of the previous technology.

Therefore, this creation discloses a manufacturing method for alleviating moiré display, which is characterized in that: a plurality of light-emitting diode modules are arranged sequentially and in a matrix on a light-emitting panel, and each light-emitting diode module is installed After the module is assembled, after rotating the parts on which the light-emitting diode modules are installed by 90 degrees, the next light-emitting diode module is installed, so that the two light-emitting diode modules set before and after into a 90 degree difference.

Wherein, the light-emitting diodes located in the same horizontal row form a light-emitting diode module, and at least three rows of the light-emitting diode modules are arranged on the light-emitting panel, and two of the light-emitting diode modules arranged in front and behind The distance between the light-emitting diode modules is about 90 microns, and each of the light-emitting diode modules is equipped with At least three light-emitting diodes are evenly spaced, and the length of the light-emitting diodes is about 8 microns, and the width is about 5 microns.

This creation also discloses a light-emitting panel for a naked-view stereoscopic display device that reduces moiré patterns. The light-emitting panel is rectangular. It is characterized in that: the light-emitting panel has multiple installation areas, and the installation areas are arranged in a matrix. And each of the installation areas is provided with three light-emitting diodes, one each of red, green and blue, and each of these light-emitting diodes is separated by an interval area, and the interval areas are rectangular , and the long sides of the equally spaced areas in each installation area are parallel to the short sides of the equally spaced areas in the installation area below it.

Preferably, the luminescent panel can be installed in a lenticular lens-type naked-view stereoscopic display device, and the installation areas are arranged in a square array.

Preferably, the spaced regions are about 8 microns long and about 5 microns wide.

In addition, this creation also discloses a light-emitting panel for a naked-view three-dimensional display device that reduces moiré. It is assumed that a plurality of light-emitting diodes are arranged in the horizontal row, and they are arranged at uniform intervals, and the light-emitting diode systems are arranged in groups of three, and each group has red, green and blue light-emitting diodes respectively. Diodes, and each of the light-emitting diodes in the installation horizontal row of the even-numbered row from top to bottom is arranged on any two adjacent such light-emitting diodes in the installation horizontal row of the odd-numbered row body, so that the center point of each light-emitting diode in any even-numbered row of the installation horizontal row is located in any two adjacent such light-emitting diodes in the adjacent odd-numbered row of the installation horizontal row In the direction of the normal extension of the center point of the light-emitting diode connection line; the arrangement of each group of light-emitting diodes in all odd-numbered rows of such installation horizontal rows is the same, and all even-numbered rows of such installation horizontal rows The arrangement of each group of light-emitting diodes is the same so that the light-emitting diodes are arranged diagonally from upper left to lower right.

Moreover, this creation further discloses a light-emitting panel for a naked-view stereoscopic display device with reduced moiré pattern, which is characterized in that: the light-emitting panel has a plurality of installation rows arranged in parallel, and each There are a plurality of light-emitting diodes in the horizontal row of the installation, and they are arranged at even intervals, and the light-emitting diode systems are set in groups of three, and each group has red, green and blue light-emitting diodes respectively. Light-emitting diodes, and each of the light-emitting diodes in the installation horizontal row in the even-numbered row from top to bottom is arranged in any two adjacent light-emitting diodes in the odd-numbered row of the installation horizontal row Between the polar bodies, so that the center point of each light-emitting diode in any even-numbered row of the installation horizontal row is located in any two adjacent adjacent odd-numbered rows of the installation horizontal row. In the direction of the normal extension of the center point of the light-emitting diode connection line; the arrangement of each group of light-emitting diodes in all odd-numbered rows of such installation horizontal rows is the same, and all even-number rows of such installation horizontal rows The arrangement of each group of light-emitting diodes is the same so that the light-emitting diode systems are arranged diagonally from upper left to lower right.

In addition, this creation further discloses a luminous panel for a naked-view stereoscopic display device with reduced moiré patterns. There are a plurality of light-emitting diodes in the horizontal row of the installation, and they are evenly spaced, and the light-emitting diode systems are in groups of three, and each group has red, green and blue light-emitting diodes. and other light-emitting diodes, and each of the light-emitting diodes in the installation horizontal row of the even-numbered row from top to bottom is arranged in any two adjacent such light-emitting diodes in the odd-numbered row of the installation horizontal row Between the diodes, so that the center point of each light-emitting diode in any even-numbered row of the installation horizontal row is located between any two adjacent odd-numbered rows of the installation horizontal row In the extension direction of the normal line of the central point of the connecting line of these light-emitting diodes; the arrangement of each group of light-emitting diodes in all odd-numbered rows of such installation horizontal rows is the same, and all even-numbered rows of such installation horizontal rows The arrangement of each group of light-emitting diodes is the same so that these light-emitting diode systems are arranged diagonally from upper right to lower left.

Still another, this creation discloses a light-emitting panel for a naked-view stereoscopic display device that reduces moiré patterns. There are a plurality of light-emitting diodes in the horizontal row of the installation, and they are arranged at even intervals, and the light-emitting diode systems are set in groups of three, and each group has red, green and blue light-emitting diodes respectively. Light-emitting diodes, and each of the light-emitting diodes in the installation horizontal row in the even-numbered row from top to bottom is arranged in any two adjacent light-emitting diodes in the odd-numbered row of the installation horizontal row Between the polar bodies, so that the center point of each light-emitting diode in any even-numbered row of the installation horizontal row is located in any two adjacent adjacent odd-numbered rows of the installation horizontal row. In the direction of the normal extension of the center point of the light-emitting diode connection line; the arrangement of each group of light-emitting diodes in all odd-numbered rows of such installation horizontal rows is the same, and all even-number rows of such installation horizontal rows The arrangement of each group of light-emitting diodes is the same so that the connection between these light-emitting diodes is an isosceles triangle.

In this way, the arrangement of the interval regions between the light emitting diodes is not exactly the same as the arrangement of the lenticular lenses by separating and completely disconnecting the interval regions between the light emitting diodes. To achieve the effect of reducing moiré.

1: Luminous panel

10: Light-emitting diode

11: Installation area

12: Red LED

13: Green LED

14: Blue LED

15: interval area

2: Luminous panel

21: installation horizontal row

22: light emitting diode

23: Concave

24: convex part

Figure 1 is a schematic diagram of setting up light-emitting diodes during the production of this creation.

Fig. 2 is a schematic diagram of the arrangement of the first embodiment of the invention.

Fig. 3 is a schematic diagram of arrangement of another implementation pattern of the first embodiment of the present invention.

Fig. 4 is a schematic diagram of the arrangement (1) of the second embodiment of the invention.

Fig. 5 is a schematic diagram of the arrangement of the second embodiment of the invention (two).

Figure 6 is a schematic diagram of the arrangement of the second embodiment of the invention (three).

Fig. 7 is a schematic diagram of the arrangement of the implementation style (four) of the second embodiment of the invention.

Figure 8 is a schematic diagram of the arrangement of the second embodiment of the invention (five).

Figure 9 is a schematic diagram of the shape of the light-emitting panel of the second embodiment of the invention.

In order to enable your examiners to clearly understand the content of the present invention, the following descriptions are provided with accompanying drawings, please refer to them.

Please refer to Figure 1, which is a schematic diagram of setting up the light-emitting diode module during the production of this creation. This creation discloses a manufacturing method for reducing moiré display, which is characterized in that: on a light-emitting panel 1, a plurality of light-emitting diodes 10 are arranged sequentially and in a matrix, and each horizontal row of these light-emitting diodes 10 It is a group of 3, when each set of these light-emitting diodes 10 is installed, the parts on which these light-emitting diodes 10 are installed are rotated 90 degrees, and then the next set of these light-emitting diodes is installed The light emitting diodes 10 are arranged in different horizontal rows, so that the arrangement of the two groups of light emitting diodes 10 arranged in front and back will have a difference of 90 degrees, as shown in FIG. 1 . Moreover, the preferred situation is that at least three rows of these light-emitting diodes 10 are arranged on the light-emitting panel 1, and the distance between the two groups of these light-emitting diodes 10 arranged before and after is about 90 microns, and each horizontal The light-emitting diodes 10 in the row are evenly spaced, and the length of the space between the light-emitting diodes 10 is about 8 microns, and the width is about 5 microns. Such a setting can produce discontinuous separation breakpoints, thereby eliminating moiré, and can also avoid the problem of residual waste caused by cutting the corners after changing the shape of the light-emitting panel. It only needs to continuously rotate 90 degrees to continuously install the light emitting diodes 10 on the light emitting panel 1 to reduce the generation of moiré, so there is no need to design other structures that can assist in eliminating moiré, further reducing the production cost.

Please refer to Fig. 2, which is a schematic diagram of the arrangement of the first embodiment of the invention. As shown in the figure, in this embodiment, the invention discloses a light-emitting panel 1, which is mounted on a columnar transparent In a mirror-type naked-view stereoscopic display device, and the light-emitting panel 1 is rectangular and has a plurality of installation areas 11, the installation areas 11 are arranged in a matrix, that is, the light-emitting panel 1 has a plurality of mutually parallel The horizontal rows, and the installation areas 11 are distributed in these horizontal rows, and these lenticular lenses are arranged on the top of the light-emitting panel 1, and the direction of arrangement can be perpendicular to the horizontal rows parallel to each other, or left and right Rotate within 13.5 degrees. A red light-emitting diode 12, a green light-emitting diode 13 and a blue light-emitting diode 14 are arranged in each installation area 11, and the red, green and blue light-emitting diodes There is a spacer area 15 between them, and the spacer areas 15 are rectangular, and the long sides of the spacer areas 15 in each installation area 11 are the intervals in the installation area 11 below them. The shorter sides of regions 15 are parallel, and the equally spaced regions are about 8 microns long and about 5 microns wide.

By designing the directions of the interval regions 15 in the upper and lower installation regions 11 to be perpendicular to each other, the same arrangement direction of the interval regions 15 can be interrupted, so that the arrangement of the interval regions 15 The direction is not exactly the same as the arrangement direction of the lenticular lenses, so as to prevent two structures with the same periodic arrangement from overlapping each other, so that the effect of reducing moiré can be achieved.

Please continue to refer to Figure 3, which is a schematic diagram of another implementation of the first embodiment of the invention. As shown in the figure, compared with the first embodiment, in this embodiment, the long sides of the equal interval regions 15 in each of the installation regions 11 of the light-emitting panel 1 are connected to all the adjacent devices. It is assumed that the short sides of the equally spaced regions 15 in the region 11 are parallel, and the rest of the components are the same as those of the first embodiment, and will not be repeated here.

In this embodiment, the interval regions 15 are further dispersed, so that the interval regions 15 in the installation regions 11 that are adjacent to each other will not have the same arrangement direction, and then in the previous On the basis of the implementation pattern, the effect of interrupting the same arrangement direction is further improved, so that the effect of reducing moiré can be more thorough, so as to enhance the practicability of this creation.

Please refer to Fig. 4, which is an arrangement schematic diagram of the implementation style (1) of the second embodiment of the invention. As shown in the figure, compared with the first embodiment, in this embodiment, this invention provides a light-emitting panel 2 for naked-view three-dimensional display device with reduced moiré pattern, which is characterized in that: the light-emitting panel 2 has multiple devices There are horizontal rows 21, and these installation horizontal rows 21 are arranged in parallel, and a plurality of light-emitting diodes 22 are arranged in each of the installation horizontal rows 21, and are arranged at even intervals, and these light-emitting diodes 22 It is a group of three, and each group has red, green and blue light-emitting diodes 22 respectively, and each of the even-numbered rows from top to bottom in the horizontal row 21 of the installation The light-emitting diodes 22 are arranged between any two adjacent light-emitting diodes 22 in the installation horizontal row 21 of the odd-numbered row, and each group in the installation horizontal row 21 of all the odd-numbered rows The arrangement of the light-emitting diodes 22 is the same, and the arrangement of each group of light-emitting diodes 22 in the installation rows 21 is the same. In addition, there will be one more light-emitting diode 22 at the far right side of the installation horizontal rows 21 in even-numbered rows, which is equally spaced from the previous one, so that the light-emitting diodes 22 in the installation horizontal rows 21 of even-numbered rows The number of equal light emitting diodes 22 is the same as that in the odd row.

As can be seen from the figure, the distance between the light emitting diodes 22 in the installation rows 21 in odd rows is replaced by the light emitting diodes in the installation rows 21 in even numbers. 22, that is, the intervals between the light-emitting diodes 22 in two adjacent installation rows 21 are disconnected and incoherent, so the generation of moiré can be reduced, and the present The object required by the invention.

Please refer to Fig. 5, which is an arrangement schematic diagram of the implementation style (2) of the second embodiment of the invention. As shown in the figure, compared with the previous embodiment, in this embodiment, the arrangement of even-numbered rows of light-emitting diodes 22 is changed, that is, the arrangement of the light-emitting diodes 22 in the first even-numbered row 21 In each group of light emitting diodes 22, the light emitting diodes 22 are arranged diagonally from upper left to lower right.

As can be seen from the figure, the distance between the light emitting diodes 22 in the installation rows 21 in odd rows is replaced by the light emitting diodes in the installation rows 21 in even numbers. 22 blocked, also That is, the intervals between the LEDs 22 in two adjacent installation rows 21 are disconnected and incoherent, so the generation of moiré can be reduced, and the goal required by the present invention can be achieved. .

Please refer to Fig. 6, which is a schematic arrangement diagram of the implementation pattern (3) of the second embodiment of the invention. As shown in the figure, compared with the previous embodiment, in this embodiment, the arrangement of even-numbered rows of light-emitting diodes 22 is changed. Among the light emitting diodes 22, the light emitting diodes 22 are arranged diagonally from upper right to lower left, so as to achieve the same purpose through different arrangements.

As can be seen from the figure, the distance between the light emitting diodes 22 in the installation rows 21 in odd rows is replaced by the light emitting diodes in the installation rows 21 in even numbers. 22, that is, the intervals between the light-emitting diodes 22 in two adjacent installation rows 21 are disconnected and incoherent, so the generation of moiré can be reduced, and the present The object required by the invention.

Please refer to Fig. 7 and Fig. 8, which are schematic diagrams of arrangement (four) and (five) of the second embodiment of the invention. As shown in the figure, compared with the previous embodiment, in this embodiment, the arrangement of even-numbered rows of light-emitting diodes 22 is changed. Among the light emitting diodes 22 , the connecting lines between the light emitting diodes 22 are isosceles triangles. In the aspect of Figure 7, the light-emitting diodes 22 are arranged in a positive isosceles triangle, but it can also be set as an inverted isosceles triangle, so that the purpose of reducing moiré can be achieved, so it is not taken for granted. limit. In the aspect of Fig. 8, the light-emitting diodes 22 are arranged in an isosceles triangle with the base on the left, but it can also be set as an isosceles triangle with the base on the right, so as to reduce moiré. purpose, so it is not limited to this.

Please refer to Figure 9, which is a schematic diagram of the shape of the light-emitting panel of the second embodiment of the present invention. In addition to proposing a special arrangement of the light-emitting diodes 22 on the generally rectangular light-emitting panel 2, this creation also provides another special-shaped light-emitting panel 2 to fully meet the requirements of this creation. The arrangement of the light-emitting diodes 22 provided is as shown in Figure 9. The light-emitting panel 2 is respectively formed with a concave portion 23 and a convex portion on the left and right side edges of the installation horizontal rows 21 corresponding to even rows. portion 24, and the distances between the concave portions 23 and the convex portions 24 and the adjacent light-emitting diodes 22 are the same, so that after a plurality of the light-emitting panels 2 are combined with each other, the devices with the same number of rows It is assumed that the spacing of the light emitting diodes 22 in the horizontal row 21 will be the same, and in this way, the area of the light emitting panel 2 will not need to be slightly enlarged due to the special arrangement of the light emitting diodes 22, so that The volume occupied by the light-emitting panels 2 after splicing can be maintained within a certain range, thereby improving the practicability of the invention.

In addition, any aspect in the second embodiment can also be designed so that the center point of each light-emitting diode 22 in any even-numbered row of the device horizontal row 21 is located in the adjacent odd-numbered row of the device. Set any two adjacent light-emitting diodes 22 in the horizontal row 21 in the direction of the normal extension of the central point of the line, so that the interval between these light-emitting diodes 22 can be disconnected, and then the Maximize the effect of reducing moiré.

Although in the first embodiment and the second embodiment, the arrangement of each group of light-emitting diodes is red, green, and blue from left to right, it can also be green, blue, red or blue, green, red and other arrangements, even the arrangement order of the light-emitting diodes in each of the installation areas 1 or each group 1 in the installation rows 21 is the adjacent installation areas 11 or the Arrangements in which the arrangement order of the light-emitting diodes in each group in the horizontal row 21 are different also belong to the scope of this creation, so it is not limited to this, and can also be increased through a variety of different arrangements. The implementation of the light-emitting panel 1 (2) further enhances the visual diversity of the naked-view stereoscopic display device.

To sum up, the present invention interrupts the intervals of each light-emitting diode through a special arrangement to make moiré less likely to appear, thereby improving the defects of the lenticular lens-type naked-eye 3D stereoscopic display.

However, the above-mentioned ones are only preferred embodiments of the present invention, and are not used to limit the scope of implementation of this creation; therefore, equal changes and modifications made without departing from the spirit and scope of the present invention should be covered by within the patent scope of the present invention.

1: Luminous panel

11: Installation area

12: Red LED

13: Green LED

14: Blue LED

15: interval area

Claims (7)

A manufacturing method for reducing moiré display, characterized in that: a plurality of light-emitting diodes are arranged sequentially and in a matrix on a light-emitting panel, and the light-emitting diode systems in each horizontal row are in groups of three , when each set of these light-emitting diodes is installed, after rotating the parts on which these light-emitting diodes are installed by 90 degrees, then set the next set of these light-emitting diodes on different horizontal rows, so that the front and rear The arrangement of the two sets of light-emitting diodes will have a difference of 90 degrees. The manufacturing method described in item 1 of the scope of the patent application, wherein the light-emitting diodes located in the same horizontal row form a light-emitting diode module, and at least three or more rows of the light-emitting diodes are arranged on the light-emitting panel. Diode modules, and the distance between the two light-emitting diode modules arranged front and back is about 90 microns, and each of the light-emitting diode modules is equipped with at least three light-emitting diodes at even intervals. polar bodies, and the distance between the light emitting diodes is about 8 microns in length and about 5 microns in width. A light-emitting panel for a naked-view three-dimensional display device that reduces moiré, the light-emitting panel is rectangular, and it is characterized in that: there are multiple installation areas on the light-emitting panel, and the installation areas are arranged in a matrix, and each of the There are three light-emitting diodes each of red, green and blue in the installation area, and each of these light-emitting diodes is separated by an interval area. The interval areas are rectangular, and each The long sides of the interval areas in the installation area are parallel to the short sides of the interval areas in the installation area below it. The light-emitting panel as described in claim 3, wherein the length of the spaced regions is about 8 microns, and the width is about 5 microns. A light-emitting panel for a naked-view stereoscopic display device with reduced moiré, characterized in that: The light-emitting panel has a plurality of installation rows, and the installation rows are arranged in parallel, and each installation row is provided with a plurality of light-emitting diodes, which are evenly spaced, and the light-emitting The two-pole system is a group of three, and each group has red, green and blue light-emitting diodes respectively, and each of the even-numbered rows from top to bottom in the horizontal row of the device The light-emitting diode system is arranged between any two adjacent light-emitting diodes in the installation row of the odd-numbered row, so that each of the light-emitting diodes in any even-numbered row of the installation row The center point of the polar body is located in the direction of the normal extension of the center point of any two adjacent light-emitting diodes in the adjacent odd-numbered row of the installation horizontal row; all the odd-numbered rows of the installation horizontal The arrangement of each group of light-emitting diodes in the row is the same, and the arrangement of each group of light-emitting diodes in all even-numbered rows is the same, so that the light-emitting diodes are arranged from top left to The bottom right is arranged diagonally. A light-emitting panel for a naked-view three-dimensional display device with reduced moiré patterns, characterized in that: the light-emitting panel has a plurality of horizontal rows of installations, the horizontal rows of installations are arranged in parallel, and each horizontal row of installations is equipped with There are a plurality of light-emitting diodes, and they are arranged at uniform intervals, and the light-emitting diode systems are in groups of three, and each group has red, green and blue light-emitting diodes respectively, and the Each of the light-emitting diodes in the installation horizontal row of the even-numbered row from top to bottom is arranged between any two adjacent such light-emitting diodes in the installation horizontal row of the odd-numbered row, so that The center point of each of the light-emitting diodes in the installation horizontal row of any even-numbered row is the connection line between any two adjacent light-emitting diodes in the installation horizontal row of the adjacent odd-numbered row In the extension direction of the normal line of the central point; the arrangement of each group of light-emitting diodes in all odd-numbered rows of such installation horizontal rows is the same, and all even-numbered rows of each group of light-emitting diodes in such installation horizontal rows The arrangement method is the same so that the light-emitting diode systems are arranged diagonally from upper right to lower left. A light-emitting panel for a naked-view stereoscopic display device with reduced moiré, characterized in that: The light-emitting panel has a plurality of installation rows, and the installation rows are arranged in parallel, and each installation row is provided with a plurality of light-emitting diodes, which are evenly spaced, and the light-emitting The two-pole system is a group of three, and each group has red, green and blue light-emitting diodes respectively, and each of the even-numbered rows from top to bottom in the horizontal row of the device The light-emitting diode system is arranged between any two adjacent light-emitting diodes in the installation row of the odd-numbered row, so that each of the light-emitting diodes in any even-numbered row of the installation row The center point of the polar body is located in the direction of the normal extension of the center point of any two adjacent light-emitting diodes in the adjacent odd-numbered row of the installation horizontal row; all the odd-numbered rows of the installation horizontal The arrangement of each group of light-emitting diodes in the row is the same, and the arrangement of each group of light-emitting diodes in all even-numbered rows is the same, so that the connection between these light-emitting diodes The lines are isosceles triangles.

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