LED display device and method for manufacturing the same

Abstract

The present invention discloses an LED display device and a method for making the same, wherein the LED display device includes (2m-1)*(2n-1) colloid units arranged in a rectangular array, each including m*n pixel colloid units and (3mn-2m-2n+1) blank colloid units, where m is a positive integer and n is a positive integer; a group of pixel units is provided on any pixel colloid unit, the pixel units being located at the colloid center of the corresponding pixel colloid unit; and a colloid separation groove is provided between any two adjacent colloid units. The present invention solves the problem of light crosstalk between pixels of a multi-pixel integrated LED display device, effectively improves the light color consistency and black screen appearance consistency of the LED display device, and optimizes the display performance of the LED display device.

Description

Technical Field

[0001] The present invention relates to the technical field of LED display devices, and in particular to an LED display device and a method for manufacturing the LED display device. Background Art

[0002] In traditional multi-pixel integrated LED devices, in order to prevent light crosstalk between pixels, encapsulation glue is generally used, and pixel division grooves are made between adjacent pixels to form gel separation grooves for isolation. Figure 1 As shown in the figure, in traditional 2*2 pixel integrated LED display devices, two horizontal and vertical cuts are usually used to divide the pixels into grooves. However, since the groove width is inconsistent with the patch spacing, the pixel center of the pixel unit is not at the center of the corresponding colloid unit. The light emitted by the same pixel unit passes through the colloid in different directions. The distance is different, resulting in inconsistent light output angles in different directions, poor consistency of light color and consistency of black screen appearance. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing technology. The present invention provides an LED display device and a method for manufacturing an LED display device, which solves the problem of light crosstalk between pixels of a multi-pixel integrated LED display device, effectively improves the color consistency of the light output of the LED display device and the consistency of the black screen appearance, and optimizes the display performance of the LED display device.

[0004] The present invention provides an LED display device, comprising (2m-1)*(2n-1) colloid units arranged in a rectangular array, the colloid units comprising m*n pixel colloid units and (3mn-2m-2n+1) blank colloid units, where m is a positive integer and n is a positive integer;

[0005] A group of pixel units is provided on any pixel colloid unit, and the pixel units are located at the colloid center of the corresponding pixel colloid unit;

[0006] A colloid separation groove is provided between any two adjacent colloid units.

[0007] Furthermore, when m is an odd number, in the m-th row of colloidal units, the pixel colloidal units and the blank colloidal units are alternately arranged.

[0008] Furthermore, when n is an odd number, in the nth column of colloidal units, the pixel colloidal units and the blank colloidal units are alternately arranged.

[0009] Furthermore, when m is an even number, all the colloid units in the mth row are blank colloid units.

[0010] Furthermore, when n is an even number, all the colloid units in the nth column are blank colloid units.

[0011] Furthermore, the depth of the colloid separation groove is 0.05 mm-0.4 mm.

[0012] Furthermore, the width of the colloid separation groove is 0.08 mm-0.4 mm.

[0013] Furthermore, any two colloidal units have the same size.

[0014] Furthermore, any group of pixel units includes a red LED chip, a green LED chip, and a blue LED chip.

[0015] The present invention also provides a method for manufacturing an LED display device, which is used to manufacture the above-mentioned LED display device, and the manufacturing method includes:

[0016] Integrate m*n pixel units in a matrix array on a substrate and package them to form a multi-pixel integrated LED display device with m rows and n columns;

[0017] Pixel segmentation and grooving are performed on the multi-pixel integrated LED display device to form (2m-1)*(2n-1) colloid units, wherein the colloid units include m*n pixel colloid units and (3mn-2m-2n+1) blank colloid units. A group of pixel units is arranged on any pixel colloid unit, and the pixel unit is located at the colloid center of the corresponding pixel colloid unit. A colloid separation groove is arranged between any two adjacent colloid units, where m is a positive integer and n is a positive integer.

[0018] Furthermore, performing pixel segmentation and grooving on the multi-pixel integrated LED display device includes:

[0019] Measuring the dot pitch of the multi-pixel integrated LED display device and obtaining the width of the cutting blade;

[0020] Calculating the theoretical size of the colloid unit based on the dot spacing and the width of the cutting blade;

[0021] Selecting a cutting mark based on the theoretical size of the colloid unit;

[0022] Pixel segmentation and grooving are performed based on the cutting traces.

[0023] Furthermore, the pixel segmentation and grooving based on the cutting traces includes:

[0024] Based on the cutting blade and the cutting marks, horizontal pixel division grooves and vertical pixel division grooves are respectively performed on the multi-pixel integrated LED display device to form (m-1)*2 horizontal colloid division grooves and (n-1)*2 vertical colloid division grooves.

[0025] The present invention provides an LED display device and a method for manufacturing the same. By dividing and slotting adjacent pixel units to prevent crosstalk, pixel colloid units and blank colloid units are provided, and the pixel units are provided at the colloid center of the corresponding pixel colloid units, the light emitted by the same pixel unit passes through the colloid for the same distance in different directions, effectively improving the color consistency of the light emitted by the LED display device and the consistency of the black screen appearance, and optimizing the display performance of the LED display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the split slot structure of a 2*2 pixel integrated LED display device in the prior art;

[0028] Figure 2 This is a schematic diagram of the split groove structure of the 2*2 pixel integrated LED display device in the first embodiment of the present invention;

[0029] Figure 3 2 is a schematic diagram of a 2*2 pixel integrated LED display device with split grooves in the first embodiment of the present invention;

[0030] Figure 4 is a flow chart of a method for manufacturing an LED display device in Embodiment 2 of the present invention;

[0031] Figure 5 This is a flowchart of pixel segmentation and grooving on a 2*2 pixel integrated LED display device in the second embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the split groove structure of the 2*2 pixel integrated LED display device in the second embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the cross-sectional structure of the split grooves of the 2*2 pixel integrated LED display device in the second embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the present invention, it should be understood that terms such as "include" or "have" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts or their combinations disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts or their combinations exist or are added.

[0036] It should also be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] Example 1

[0038] Embodiment 1 of the present invention provides an LED display device, comprising (2m-1)*(2n-1) colloid units arranged in a rectangular array, each comprising m*n pixel colloid units and (3mn-2m-2n+1) blank colloid units, where m is a positive integer and n is a positive integer; a group of pixel units is provided on any pixel colloid unit, and the pixel units are located at the colloid center of the corresponding pixel colloid unit; and a colloid separation groove is provided between any two adjacent colloid units.

[0039] In an optional implementation of this embodiment, when m=2 and n=2, the LED display device includes 3*3 colloid units arranged in a rectangular array, and the colloid units include 2*2 pixel colloid units and 5 blank colloid units.

[0040] Specifically, such as Figure 2 As shown, Figure 2 The schematic diagram of the segmented and grooved structure of the 2*2 pixel integrated LED display device in the first embodiment of the present invention is shown. The colloid unit includes 4 pixel colloid units 1 and 5 blank colloid units 2.

[0041] In an optional implementation of this embodiment, as Figure 2 As shown, in the 3*3 colloid units of the LED display device, the four pixel colloid units 1 occupy the positions (1,1), (3,1), (1,3), and (3,3) respectively, and the five blank colloid units 2 occupy the positions (1,2), (2,1), (2,2), (2,3), and (3,2) respectively.

[0042] In an optional implementation of this embodiment, when m is an odd number, in the m-th row of colloidal units, the pixel colloidal units 1 and the blank colloidal units 2 are alternately arranged.

[0043] Specifically, in Figure 2 In the first row of colloid units of the LED display device, the pixel colloid units 1 and the blank colloid units 2 are alternately arranged, wherein the pixel colloid units 1 occupy the (1,1) and (1,3) positions, and the blank colloid units 2 occupy the (1,2) position.

[0044] More in Figure 2 In the 3rd row of colloid units of the LED display device, the pixel colloid units 1 and the blank colloid units 2 are alternately arranged, wherein the pixel colloid units 1 occupy the positions (3,1) and (3,3), and the blank colloid units 2 occupy the position (3,2).

[0045] In an optional implementation of this embodiment, when n is an odd number, in the nth column of colloidal units, the pixel colloidal units 1 and the blank colloidal units 2 are alternately arranged.

[0046] Specifically, in Figure 2 In the first column of the colloid unit of the LED display device, the pixel colloid unit 1 and the blank colloid unit 2 are alternately arranged, wherein the pixel colloid unit 1 occupies the (1,1) and (3,1) positions, and the blank colloid unit 2 occupies the (2,1) position.

[0047] More in Figure 2 In the third column of the colloid unit of the LED display device, the pixel colloid unit 1 and the blank colloid unit 2 are alternately arranged, wherein the pixel colloid unit 1 occupies the (1,3) and (3,3) positions, and the blank colloid unit 2 occupies the (2,3) position.

[0048] In an optional implementation of this embodiment, when m is an even number, all the colloidal units in the mth row are blank colloidal units.

[0049] Specifically, in Figure 2 In the colloid units of the second row of the LED display device, the blank colloid units 2 completely occupy the entire colloid units of the second row.

[0050] In an optional implementation of this embodiment, when n is an even number, all the colloidal units in the nth column are blank colloidal units.

[0051] Specifically, in this Figure 2 In the second column of colloid units of the LED display device, the blank colloid units 2 completely occupy the entire second column of colloid units.

[0052] In an optional implementation of this embodiment, a group of pixel units is provided on any pixel colloid unit, and the pixel units are located at the colloid center of the corresponding pixel colloid unit.

[0053] Specifically, such as Figure 2 As shown, Figure 2 A group of pixel units 3 is provided on any pixel colloid unit 1 , and the pixel units 3 are located at the colloid center of the corresponding pixel colloid unit 1 .

[0054] Specifically, the pixel unit 3 is located at the colloid center of the corresponding pixel colloid unit 1 , which means that the pixel center of the pixel unit 3 is located at the colloid center of the corresponding pixel colloid unit 1 .

[0055] In an optional implementation of this embodiment, a colloid separation groove is provided between any two adjacent colloid units.

[0056] Specifically, in the colloid units in the same row, a vertical colloid separation groove is provided between any two adjacent colloid units.

[0057] Furthermore, in the colloid units of the same column, a transverse colloid separation groove is provided between any two adjacent colloid units.

[0058] It should be noted that any of the vertical colloid separation grooves and any of the horizontal colloid separation grooves are perpendicular to each other.

[0059] In an optional implementation of this embodiment, the number of the vertical colloid separation grooves A=(n-1)*2.

[0060] Specifically, in this embodiment, the number of the vertical colloid separation grooves A=(2-1)*2=2.

[0061] In an optional implementation of this embodiment, the number of the transverse colloid separation grooves B=(m-1)*2.

[0062] Specifically, in this embodiment, the number of the transverse colloid separation grooves B=(2-1)*2=2.

[0063] In an optional implementation of this embodiment, any two colloid units have the same size.

[0064] Specifically, any two pixel colloidal units have the same size, any two blank colloidal units have the same size, and any pixel colloidal unit has the same size as any blank colloidal unit.

[0065] In an optional implementation of this embodiment, the width D of the colloid separation groove is 0.08 mm-0.4 mm.

[0066] Specifically, the width D of the colloid separation groove may be a value among 0.08 mm, 0.2 mm, 0.4 mm, etc., and is determined according to actual needs.

[0067] In an optional implementation of this embodiment, as Figure 2 As shown, the dot pitch of the LED display device, that is, the distance between any two adjacent pixel centers is P, the width of any colloid separation groove is D, and the side length of any colloid unit is L, L=(P-2*D) / 2.

[0068] Specifically, such as Figure 2 As shown, Figure 2 The LED display device in the embodiment is a 2*2 pixel integrated LED display device, with a dot pitch P=3 mm and a colloid separation groove width D=0.2 mm. Then, the colloid unit side length L=(3-2*0.2) / 2=1.3 mm.

[0069] In an optional implementation of this embodiment, the first side length of the LED display device is L′, the second side length is L″, L′=(2m-1)*L+(m-1)*2*D, L″=(2n-1)*L+(n-1)*2*D.

[0070] Specifically, such as Figure 2 As shown, Figure 2 The LED display device is a 2*2 pixel integrated LED display device, then the first side length L′=(2*2-1)*1.3+(2-1)*2*0.2=4.3 mm, and the second side length L″=(2*2-1)*1.3+(2-1)*2*0.2=4.3 mm.

[0071] In an optional implementation of this embodiment, as Figure 3 As shown, Figure 3 The figure shows a schematic cross-sectional structure diagram of a 2*2 pixel integrated LED display device with split grooves in the first embodiment of the present invention.

[0072] In an optional implementation of this embodiment, the depth H of the colloid separation groove is 0.05 mm-0.4 mm.

[0073] Specifically, the depth H of the colloid separation groove may be a value among 0.05 mm, 0.1 mm, 0.2 mm, 0.4 mm, etc., and is determined according to actual needs.

[0074] In an optional implementation of this embodiment, any group of pixel units includes a red LED chip, a green LED chip, and a blue LED chip.

[0075] In summary, an embodiment of the present invention proposes an LED display device, which prevents cross-lighting by dividing and slotting adjacent pixel units, setting pixel colloid units and blank colloid units, and setting the pixel units at the colloid center of the corresponding pixel colloid units, so that the light emitted by the same pixel unit passes the same distance through the colloid in different directions, effectively improving the color consistency of the light output of the LED display device and the consistency of the black screen appearance, and optimizing the display performance of the LED display device.

[0076] Example 2

[0077] Embodiment 2 of the present invention provides a method for manufacturing an LED display device, which is used to manufacture the LED display device in embodiment 1. The manufacturing method includes: integrating m*n pixel units in a matrix array on a substrate, and packaging them to form a multi-pixel integrated LED display device with m rows and n columns; and performing pixel segmentation and grooving on the multi-pixel integrated LED display device.

[0078] In an optional implementation of this embodiment, a 2-row 2-column pixel integrated LED display device is used.

[0079] In an optional implementation of this embodiment, as Figure 4 As shown, Figure 4 A flow chart of a method for manufacturing a 2*2 pixel integrated LED display device in a second embodiment of the present invention is shown, comprising the following steps:

[0080] S401, integrating m*n pixel units in a matrix array on a substrate, and encapsulating them to form a multi-pixel integrated LED display device with m rows and n columns;

[0081] In an optional implementation of this embodiment, m*n pixel units are integrated in a matrix array on a substrate and packaged to form a multi-pixel integrated LED display device with m rows and n columns of pixel units.

[0082] In an optional implementation of this embodiment, an LED display device integrating 2*2 pixel units is used.

[0083] In an optional implementation of this embodiment, any group of pixel units includes a red LED chip, a green LED chip, and a blue LED chip.

[0084] S402 , performing pixel segmentation and grooving on the multi-pixel integrated LED display device.

[0085] In an optional implementation of this embodiment, as Figure 5 As shown, Figure 5A flowchart of pixel segmentation and grooving on a 2*2 pixel integrated LED display device in a second embodiment of the present invention is shown, including the following steps:

[0086] S501, measuring the dot pitch of the multi-pixel integrated LED display device and obtaining the width of the cutting blade;

[0087] In an optional implementation of this embodiment, the dot pitch P of the multi-pixel integrated LED display device is measured and obtained, and the width of the cutting blade is obtained.

[0088] It should be noted that the width D of the colloid separation groove formed after the pixel segmentation and grooving by the cutting blade is consistent with the width of the cutting blade.

[0089] In an optional implementation of this embodiment, as Figure 6 As shown, Figure 6 The figure shows a schematic diagram of the splitting and slotting structure of a 2*2 pixel integrated LED display device in the second embodiment of the present invention. Figure 6 The dot pitch of the 2*2 pixel integrated LED display device, that is, the distance between any two adjacent pixel centers 3 is P, and the width of any colloid separation groove is D. In the 2*2 pixel integrated LED display device in this embodiment, the dot pitch P = 3 mm, and the colloid separation groove width D = 0.2 mm.

[0090] S502, calculating the theoretical size of the colloid unit according to the dot spacing and the width of the cutting blade;

[0091] In an optional implementation of this embodiment, the theoretical size L of the colloid unit is calculated based on the dot pitch P and the width of the cutting blade, that is, based on the dot pitch P and the width D of the colloid separation groove.

[0092] It should be noted that the sizes of any two colloid units are the same.

[0093] Specifically, the calculation formula of the theoretical size L of the colloid unit is as follows:

[0094] L = (P-2*D) / 2;

[0095] Where L is the theoretical size of the colloid unit, P is the point spacing, and D is the width of the colloid separation groove.

[0096] Specifically, in the 2*2 pixel integrated LED display device in this embodiment, the dot pitch P=3 mm, the colloid separation groove width D=0.2 mm, and the colloid unit theoretical size L=(3-2*0.2) / 2=1.3 mm.

[0097] S503, selecting cutting marks based on the theoretical size of the colloid unit;

[0098] In an optional implementation of this embodiment, the cutting mark is selected based on the theoretical size L of the colloid unit.

[0099] Specifically, any pixel unit is selected, and the pixel center of the pixel unit is used as the center, and L / 2 is extended upward, downward, left and right to form a square with a side length of L. The outline of the square with a side length of L is used as the cutting mark, and the above steps are repeated until all square outlines centered on each pixel unit are formed.

[0100] Specifically, such as Figure 6 As shown, a square with a side length of L and a center of each pixel 3 is formed, and the outline of the square is used as a cutting mark. All square outlines are connected to form a cutting mark.

[0101] S504: Perform pixel segmentation and grooving based on the cutting traces.

[0102] In an optional implementation of this embodiment, a cutting blade is used to perform pixel segmentation and grooving based on the cutting traces to form a plurality of colloid separation grooves.

[0103] Specifically, based on the cutting blade and the cutting marks, horizontal pixel division grooves and vertical pixel division grooves are respectively performed on the multi-pixel integrated LED display device to form (m-1)*2 horizontal colloid division grooves and (n-1)*2 vertical colloid division grooves.

[0104] It should be noted that any of the vertical colloid separation grooves and any of the horizontal colloid separation grooves are perpendicular to each other.

[0105] In an optional implementation of this embodiment, as Figure 6 As shown, after a horizontal pixel division groove is performed, a horizontal colloid division groove is formed, and after a vertical pixel division groove is performed, a vertical colloid division groove is formed. In the 2*2 pixel integrated LED display device in this embodiment, a total of (2-1)*2=4 horizontal pixel division grooves and (2-1)*2=4 vertical pixel division grooves are required to form (2-1)*2=4 horizontal colloid division grooves and (2-1)*2=4 vertical colloid division grooves.

[0106] In an optional implementation of this embodiment, after horizontal pixel segmentation and vertical segmentation, (2m-1)*(2n-1) colloidal units are formed, and the colloidal units include m*n pixel colloidal units and (3mn-2m-2n+1) blank colloidal units. A group of pixel units is arranged on any pixel colloidal unit, and the pixel unit is located at the colloidal center of the corresponding pixel colloidal unit. A colloidal separation groove is arranged between any two adjacent colloidal units. m is a positive integer, and n is a positive integer.

[0107] Specifically, in the 2*2 pixel integrated LED display device of this embodiment, as Figure 6 As shown, after pixel segmentation and grooving are performed on the multi-pixel integrated LED display device, (2*2-1)*(2*2-1)=9 colloidal units are formed, including 2*2=4 pixel colloidal units 1 and (3*2*2-2*2-2*2+1)=5 blank colloidal units 2, wherein the 4 pixel colloidal units 1 occupy the positions (1,1), (3,1), (1,3), and (3,3) respectively, and the 5 blank colloidal units 2 occupy the positions (1,2), (2,1), (2,2), (2,3), and (3,2) respectively.

[0108] In an optional implementation of this embodiment, when m is an odd number, in the m-th row of colloidal units, the pixel colloidal units 1 and the blank colloidal units 2 are alternately arranged.

[0109] Specifically, in Figure 6 In the first row of colloid units of the LED display device, the pixel colloid units 1 and the blank colloid units 2 are alternately arranged, wherein the pixel colloid units 1 occupy the (1,1) and (1,3) positions, and the blank colloid units 2 occupy the (1,2) position.

[0110] More in Figure 6 In the 3rd row of colloid units of the LED display device, the pixel colloid units 1 and the blank colloid units 2 are alternately arranged, wherein the pixel colloid units 1 occupy the positions (3,1) and (3,3), and the blank colloid units 2 occupy the position (3,2).

[0111] In an optional implementation of this embodiment, when n is an odd number, in the nth column of colloidal units, the pixel colloidal units 1 and the blank colloidal units 2 are alternately arranged.

[0112] Specifically, in Figure 6 In the first column of the colloid unit of the LED display device, the pixel colloid unit 1 and the blank colloid unit 2 are alternately arranged, wherein the pixel colloid unit 1 occupies the (1,1) and (3,1) positions, and the blank colloid unit 2 occupies the (2,1) position.

[0113] More in Figure 6 In the third column of the colloid unit of the LED display device, the pixel colloid unit 1 and the blank colloid unit 2 are alternately arranged, wherein the pixel colloid unit 1 occupies the (1,3) and (3,3) positions, and the blank colloid unit 2 occupies the (2,3) position.

[0114] In an optional implementation of this embodiment, when m is an even number, all the colloidal units in the mth row are blank colloidal units.

[0115] Specifically, in Figure 6 In the colloid units of the second row of the LED display device, the blank colloid units 2 completely occupy the entire colloid units of the second row.

[0116] In an optional implementation of this embodiment, when n is an even number, all the colloidal units in the nth column are blank colloidal units.

[0117] Specifically, in this Figure 6 In the second column of colloid units of the LED display device, the blank colloid units 2 completely occupy the entire second column of colloid units.

[0118] In an optional implementation of this embodiment, a group of pixel units is provided on any pixel colloid unit, and the pixel units are located at the colloid center of the corresponding pixel colloid unit.

[0119] Specifically, such as Figure 6 As shown, Figure 5 A group of pixel units 3 is provided on any pixel colloid unit 1 , and the pixel units 3 are located at the colloid center of the corresponding pixel colloid unit 1 .

[0120] Specifically, the pixel unit 3 is located at the colloid center of the corresponding pixel colloid unit 1 , which means that the pixel center of the pixel unit 3 is located at the colloid center of the corresponding pixel colloid unit 1 .

[0121] In an optional implementation of this embodiment, the width D of the colloid separation groove is 0.08 mm-0.4 mm.

[0122] Specifically, the width D of the colloid separation groove may be a value among 0.08 mm, 0.2 mm, 0.4 mm, etc., and is determined according to actual needs.

[0123] In an optional implementation of this embodiment, after pixel separation and grooving, the LED display device formed has a first side length of L′ and a second side length of L″, L′=(2m-1)*L+(m-1)*2*D, L″=(2n-1)*L+(n-1)*2*D.

[0124] Specifically, in this embodiment, Figure 6 As shown, Figure 6 The LED display device is a 2*2 pixel integrated LED display device, then the first side length L′=(2*2-1)*1.3+(2-1)*2*0.2=4.3 mm, and the second side length L″=(2*2-1)*1.3+(2-1)*2*0.2=4.3 mm.

[0125] In an optional implementation of this embodiment, as Figure 7 As shown, Figure 7 A schematic diagram of the split groove cross-sectional structure of a 2*2 pixel integrated LED display device in the second embodiment of the present invention is shown.

[0126] In an optional implementation of this embodiment, the depth H of the colloid separation groove is 0.05 mm-0.4 mm.

[0127] Specifically, the depth H of the colloid separation groove may be a value among 0.05 mm, 0.1 mm, 0.2 mm, 0.4 mm, etc., and is determined according to actual needs.

[0128] In summary, embodiment 2 of the present invention provides a method for manufacturing an LED display device, which is used to manufacture the LED display device in embodiment 1. By dividing and grooving adjacent pixel units to prevent cross-light phenomenon, pixel colloid units and blank colloid units are set, and the pixel units are set at the colloid center of the corresponding pixel colloid units, the light emitted by the same pixel unit passes through the colloid for the same distance in different directions, effectively improving the color consistency of the light output of the LED display device and the consistency of the black screen appearance, and optimizing the display performance of the LED display device.

[0129] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0130] In addition, the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An LED display device, characterized in that: The LED display device includes (2m-1)*(2n-1) colloid units, which are arranged in a rectangular array. The colloid units include m*n pixel colloid units and (3mn-2m-2n+1) blank colloid units, where m is a positive integer and n is a positive integer. A group of pixel units is provided on any pixel colloid unit, and the pixel units are located at the colloid center of the corresponding pixel colloid unit; A colloid separation groove is provided between any two adjacent colloid units; When m is an odd number, in the mth row of colloidal units, the pixel colloidal units and the blank colloidal units are alternately arranged; When n is an odd number, in the nth column of colloidal units, the pixel colloidal units and the blank colloidal units are alternately arranged; When m is an even number, all the colloid units in the mth row are blank colloid units; When n is an even number, all the colloid units in the nth column are blank colloid units.

2. The LED display device according to claim 1, wherein The depth of the colloid separation groove is 0.05mm-0.4mm.

3. The LED display device according to claim 1, wherein The width of the colloid separation groove is 0.08mm-0.4mm.

4. The LED display device according to claim 1, wherein Any two colloid units have the same size.

5. The LED display device according to claim 1, wherein Any group of pixel units includes a red LED chip, a green LED chip, and a blue LED chip.

6. A method for manufacturing an LED display device, characterized in that: The method for manufacturing the LED display device is used to manufacture the LED display device according to any one of claims 1 to 5, and the method comprises: Integrate m*n pixel units in a matrix array on a substrate and package them to form a multi-pixel integrated LED display device with m rows and n columns; Pixel segmentation and grooving are performed on the multi-pixel integrated LED display device to form (2m-1)*(2n-1) colloid units, wherein the colloid units include m*n pixel colloid units and (3mn-2m-2n+1) blank colloid units. A group of pixel units is arranged on any pixel colloid unit, and the pixel unit is located at the colloid center of the corresponding pixel colloid unit. A colloid separation groove is arranged between any two adjacent colloid units, where m is a positive integer and n is a positive integer.

7. The method for manufacturing an LED display device according to claim 6, wherein: The pixel segmentation and grooving on the multi-pixel integrated LED display device comprises: Measuring the dot pitch of the multi-pixel integrated LED display device and obtaining the width of the cutting blade; Calculating the theoretical size of the colloid unit based on the dot spacing and the width of the cutting blade; Selecting a cutting mark based on the theoretical size of the colloid unit; Pixel segmentation and grooving are performed based on the cutting traces.

8. The method for manufacturing an LED display device according to claim 7, wherein: The pixel segmentation and grooving based on the cutting traces includes: Based on the cutting blade and the cutting marks, horizontal pixel division grooves and vertical pixel division grooves are respectively performed on the multi-pixel integrated LED display device to form (m-1)*2 horizontal colloid division grooves and (n-1)*2 vertical colloid division grooves.

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