LED crystal grain mixing method

Abstract

An LED crystal grain mixing method comprises the following steps that a matrix with i columns and j rows is established, the matrix comprises i * j elements, each element in the matrix is a square matrix with n columns and n rows, i is larger than or equal to 2, j is larger than or equal to 2, n is larger than or equal to 3, and i, j and n are all positive integers; respectively marking numbers 1, 2,..., n2 on the n2 coordinates of each square matrix by using a magic square, so that the sum of the numbers marked on the n coordinates of each row, each column and two diagonals of each square matrix is equal to # imgabs0 #, the plurality of LED crystal grains are divided into n2 wavelength sections according to the wavelength, and each wavelength section comprises i * j LED crystal grains; and respectively placing the i * j LED crystal grains in the same wavelength section on the coordinates marked with the same number in the plurality of square matrixes.

Description

Technical Field

[0001] The invention relates to a LED grain mixing method. Background Art

[0002] A light emitting diode display (LED display) is a display using light emitting diodes, including a plurality of LED light boxes. Each LED light box includes a plurality of LED printed circuit boards. Each LED printed circuit board is composed of a plurality of discretely packaged LED dies.

[0003] The conventional LED die mixing method is to use vibration random combination or random number sorting of different types of LED dies (red light, blue light and green light). Therefore, the average wavelength of multiple LED printed circuit boards will be consistent, that is, the color between multiple LED printed circuit boards is uniform.

[0004] However, a small area within a single LED printed circuit board has an inconsistency in average wavelength, resulting in uneven color of the single LED printed circuit board.

[0005] Furthermore, these LED dies are easily collided and damaged due to vibration mixing. Summary of the invention

[0006] The main purpose of the present invention is to provide a method for mixing LED dies, which can allocate positions of different types of LED dies (red light, blue light and green light) by using magic squares and wavelength segments.

[0007] In order to achieve the above-mentioned object, the present invention provides a method for mixing LED dies, comprising the following steps:

[0008] (a) establishing a matrix with i columns and j rows, the matrix comprising i×j elements, each element in the matrix being a square matrix with n columns and n rows, wherein i≥2, j≥2, n≥3, and i, j, and n are all positive integers;

[0009] (b) Using magic squares in the n of each of the square matrices 2 The coordinates are marked with numbers 1, 2, ..., n 2 , so that the sum of the numbers marked on the n coordinates of each row, each column and two diagonals of each of the square matrices is equal to

[0010]

[0011] (c) Divide multiple LED chips into n groups according to wavelength 2 wavelength bands, and each wavelength band contains i×j LED chips; and

[0012] (d) placing the i×j LED chips of the same wavelength range respectively on the coordinates marked with the same numbers in a plurality of the square arrays.

[0013] In some embodiments, the magic square is an odd-order magic square.

[0014] In some embodiments, n=3.

[0015] In some embodiments, the magic square is an even-order magic square.

[0016] In some embodiments, step (b) further comprises: the sum of the numbers marked on the consecutive n coordinates of any diagonal of two adjacent square matrices is equal to

[0017] In some embodiments, step (b) further comprises: the sum of the numbers marked on the coordinates of any 2×2 inner square matrix in each of the square matrixes is equal to 2 (n 2 +1), the distance between any diagonal line in each of the square matrices is The sum of the numbers marked on the two coordinates of the coordinate unit is equal to n 2 +1, and the side length of the matrix is ​​a coordinate unit that is a multiple of 4.

[0018] In some embodiments, step (b) further comprises: the sum of the numbers marked on the consecutive n coordinates of any diagonal of two adjacent square matrices is equal to The sum of the numbers marked on the coordinates of any 2×2 inner square matrix in each of the square matrices is equal to 2(n 2 +1), the two distances in each of the square arrays are The sum of the numbers marked on the diagonal coordinates is equal to n 2 +1, and the side length of the matrix is ​​a coordinate unit that is a multiple of 4.

[0019] In some embodiments, n=4.

[0020] In some embodiments, step (b) further comprises: the positions of the numbers marked by the multiple coordinates of the multiple matrixes are the same.

[0021] In some embodiments, step (d) further comprises: randomly placing the i×j LED dies of the same wavelength band on coordinates marked with the same number in a plurality of the square arrays.

[0022] The effect of the present invention lies in that the LED grain mixing method of the present invention can use magic squares to match wavelength segments to allocate positions of different types of LED grains (red light, blue light and green light), thereby achieving the following effects: first, the average wavelengths between multiple LED printed circuit boards are consistent, so that the colors between the multiple LED printed circuit boards are uniform; second, the average wavelengths of small areas inside a single LED printed circuit board are consistent, so that the colors of the single LED printed circuit board are uniform; third, these LED grains 20 will not be collided and damaged due to vibration mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a flow chart of the method of the present invention.

[0024] Figure 2 is a schematic diagram of step S10 and step S20 of the first embodiment of the method of the present invention.

[0025] Figure 3 FIG. 1 is a schematic diagram of step S30 of the first embodiment of the method of the present invention.

[0026] Figures 4 to 7 is a schematic diagram of step S40 of the first embodiment of the method of the present invention.

[0027] Figure 8 is a schematic diagram of step S10 and step S20 of the second embodiment of the method of the present invention.

[0028] Fig. 9 is a schematic diagram of step S30 of the second embodiment of the method of the present invention.

[0029] Figures 10 to 13 is a schematic diagram of step S40 of the second embodiment of the method of the present invention.

[0030] Description of reference numerals:

[0031] 10, 10A-matrix, 11, 11A-square matrix, 111-coordinate, 112-inner square matrix, 121, 122-diagonal, 20-grain, 30-wavelength segment, L, W-side length, S10~S40-steps. DETAILED DESCRIPTION

[0032] The following is a more detailed description of the embodiments of the present invention with the help of drawings and component symbols, so that those skilled in the art can implement the invention according to the description after reading the specification.

[0033] Figure 1 is a flow chart of the method of the present invention. Figure 2 is a schematic diagram of step S10 and step S20 of the first embodiment of the method of the present invention. Figure 3is a schematic diagram of step S30 of the first embodiment of the method of the present invention. Figures 4 to 7 Schematic diagram of step S40 of the first embodiment of the method of the present invention. The present invention provides an LED die mixing method, comprising the following steps:

[0034] Step S10, as Figure 1 and Figure 2 As shown, a matrix 10 with i columns and j rows is established. The matrix 10 includes i×j elements, and each element in the matrix 10 is a square matrix 11 with n columns and n rows, wherein i≥2, j≥2, n≥3, and i, j, and n are all positive integers.

[0035] Step S20, as Figure 1 and Figure 2 As shown, using magic squares in each matrix 11 n 2 The coordinates 111 are marked with numbers 1, 2, ..., n respectively 2 , so that the sum of the numbers marked on the n coordinates 111 of each row, each column and two diagonals of each square matrix 11 is equal to

[0036] Step S30, as Figure 1 and Figure 3 As shown, the plurality of LED chips 20 are divided into n 2 wavelength bands 30 , and each wavelength band 30 includes i×j LED dies 20 .

[0037] Step S40, as Figure 1 , Figures 4 to 7 As shown, i×j LED dies 20 of the same wavelength band 30 are placed on the coordinates 111 marked with the same numbers in these square arrays 11 respectively.

[0038] In the first embodiment, step S10, as Figure 2 As shown, a matrix 10 with four columns and three rows is established, the matrix 10 includes twelve elements, each element in the matrix 10 is a square matrix 11 with three columns and three rows, wherein i=4, and j=3, the magic square is an odd-order magic square and n=3; step S20, as Figure 2 As shown, the magic square is used to mark the numbers 1, 2, ..., 9 on the nine coordinates 111 of each matrix 11, so that the sum of the numbers marked on the three coordinates 111 of each row, each column and two diagonals of each matrix 11 is equal to fifteen; step S30, as Figure 3 As shown, the plurality of LED dies 20 are divided into nine wavelength segments 30 (only four are shown in the figure) according to the wavelength, and each wavelength segment 30 includes twelve LED dies 20; step S40, as shown Figures 4 to 7As shown, twelve dies 20 of the same wavelength band 30 are respectively placed on the coordinates 111 marked with the same numbers in these square arrays 11 .

[0039] Furthermore, in the first embodiment, Figure 4 and Figure 5 Twelve crystal grains 20 (coded A to L in English) are shown to be placed at coordinates 111 marked with number 1 in these square arrays 11, Figure 6 Twelve crystal grains 20 (coded A to L in English) are shown to be placed on the coordinates 111 marked with number 2 in these square arrays 11, Figure 7 Twelve crystal grains 20 (coded as A to L in English) are shown to be placed at the coordinates 111 marked with number 9 in these square arrays 11, and so on.

[0040] Preferably, step S20 further comprises: Figure 2 As shown, the positions of the numbers marked by the coordinates 111 of the square arrays 11 are the same. For example, in the square arrays 11, the numbers marked by the coordinates 111 from left to right in the first row are 2, 7, and 6, the numbers marked by the coordinates 111 from left to right in the second row are 9, 5, and 1, the numbers marked by the coordinates 111 from left to right in the third row are 4, 3, and 8, and so on.

[0041] Preferably, step S40 further comprises: Figure 4 and Figure 5 As shown, twelve crystal grains 20 of the same wavelength band 30 are randomly placed on the coordinates 111 marked with the same number in the square arrays 11. For example, twelve crystal grains 20 of the same wavelength band 30 (coded as A to L in English) are randomly placed on the coordinates 111 marked with number 1 in the square arrays 11.

[0042] Figure 8 is a schematic diagram of step S10 and step S20 of the second embodiment of the method of the present invention. Fig. 9 is a schematic diagram of step S30 of the second embodiment of the method of the present invention. Figures 10 to 13 is a schematic diagram of step S40 of the second embodiment of the method of the present invention. The difference between the second embodiment and the first embodiment is that: step S10 further includes: the magic square is an even-order magic square; step S20 further includes: the sum of the numbers marked on the continuous n coordinates 111 of any diagonal line 121 of two adjacent square matrices 11A is equal to The sum of the numbers marked on the coordinates 111 of any 2×2 inner square 112 in each square 11A is equal to 2 (n 2 +1), the distance between any diagonal line 122 in each matrix 11A is The sum of the numbers marked on the two coordinates 111 of the coordinate unit is equal to n 2+1, and the side lengths L and W of the matrix 10A are coordinate units that are multiples of 4.

[0043] In the second embodiment, step S10, as Figure 8 As shown, a matrix 10A with four columns and three rows is established, the matrix 10A includes twelve elements, each element in the matrix 10A is a square matrix 11A with four columns and four rows, wherein, wherein, i=4, and j=3, the magic square is an even-order magic square and n=4; step S20, as Figure 8 As shown, the magic square is used to mark the numbers 1, 2, ..., 16 on the twelve coordinates 111 of each matrix 11A, so that the sum of the numbers marked on the four coordinates 111 of each row, each column and two diagonals of each matrix 11A is equal to thirty-four, the sum of the numbers marked on the four consecutive coordinates 111 of any diagonal 121 of two adjacent matrixes 11A is equal to thirty-four, the sum of the numbers marked on the coordinates 111 of any 2×2 inner matrix 112 in each matrix 11A is equal to thirty-four, the sum of the numbers marked on the two coordinates 111 of any diagonal 122 in each matrix 11A is equal to seventeen, and the length L of the long side of the matrix 10A is sixteen coordinate units, and the length W of the short side of the matrix 10A is twelve coordinate units; step S30, as Fig. 9 As shown, the plurality of LED dies 20 are divided into sixteen wavelength segments 30 (only four are shown in the figure) according to the wavelength, and each wavelength segment 30 includes twelve LED dies 20; step S40, as shown Figures 10 to 13 As shown, twelve dies 20 of the same wavelength range 30 are respectively placed on the coordinates 111 marked with the same numbers in the square arrays 11A.

[0044] Furthermore, in the second embodiment, Fig.10 and Fig.11 Twelve crystal grains 20 (coded A to L in English) are shown to be placed at the coordinates 111 marked with number 1 in these square arrays 11A. Fig.12 Twelve crystal grains 20 (coded A to L in English) are shown to be placed on the coordinates 111 marked with number 2 in these square arrays 11A. Fig.13 Twelve crystal grains 20 (coded as A to L in English) are shown to be placed at the coordinates 111 marked with number 16 in these square arrays 11A, and so on.

[0045] Preferably, step S20 further comprises: Figure 8As shown, the positions of the numbers marked by the coordinates 111 of these square arrays 11A are the same. For example, in the square array 11A, the numbers marked by the coordinates 111 from left to right in the first row are 1, 15, 10, and 8, the numbers marked by the coordinates 111 from left to right in the second row are 12, 6, 3, and 13, the numbers marked by the coordinates 111 from left to right in the third row are 7, 9, 16, and 2, the numbers marked by the coordinates 111 from left to right in the fourth row are 14, 4, 5, and 11, and so on.

[0046] Preferably, step S40 further comprises: Fig.10 and Fig.11 As shown, twelve crystals 20 of the same wavelength band 30 are randomly placed on the coordinates 111 marked with the same number in the square arrays 11A. For example, twelve crystals 20 of the same wavelength band 30 (coded as A to L in English) are randomly placed on the coordinates 111 marked with number 1 in the square arrays 11A.

[0047] It is worth mentioning that each array 11 is a single LED printed circuit board containing n×n LED chips 20, and the matrix 10 is an LED light box containing i×j LED printed circuit boards. Multiple light boxes can constitute an LED display screen.

[0048] In summary, the LED chip mixing method of the present invention can use magic squares and wavelength segments to allocate positions of different types of LED chips 20 (red light, blue light and green light), thereby achieving the following effects: first, the average wavelengths between multiple LED printed circuit boards are consistent, so that the colors between the multiple LED printed circuit boards are uniform; second, the average wavelengths of small areas inside a single LED printed circuit board are consistent, so that the color of the single LED printed circuit board is uniform; third, these LED chips 20 will not be collided and damaged due to vibration mixing.

[0049] The above description is only used to explain the preferred embodiments of the present invention, and is not intended to limit the present invention in any form. Therefore, any modifications or changes made to the present invention under the same inventive spirit should still be included in the scope of protection intended by the present invention.

Claims

1. A method for mixing LED chips, characterized in that: The following steps are involved: (a) establishing a matrix with i columns and j rows, the matrix comprising i×j elements, each element in the matrix being a square matrix with n columns and n rows, wherein i≥2, j≥2, n≥3, and i, j, and n are all positive integers; (b) Using magic squares in the n of each of the square matrices 2 The coordinates are marked with numbers 1, 2, ..., n 2 , so that the sum of the numbers marked on the n coordinates of each row, each column and two diagonals of each of the square matrices is equal to (c) Divide multiple LED chips into n groups according to wavelength 2 wavelength bands, and each wavelength band contains i×j LED chips; and (d) placing the i×j LED chips of the same wavelength range respectively on the coordinates marked with the same numbers in a plurality of the square arrays.

2. The LED die mixing method according to claim 1, characterized in that: The magic square is an odd-order magic square.

3. The LED die mixing method according to claim 2, characterized in that: n＝3。 4. The LED die mixing method according to claim 1, characterized in that: The magic square is an even-order magic square.

5. The LED die mixing method according to claim 4, characterized in that: Step (b) further comprises: the sum of the numbers marked on the consecutive n coordinates of any diagonal of two adjacent square matrices is equal to 6. The LED die mixing method according to claim 4, characterized in that: Step (b) further comprises: the sum of the numbers marked on the coordinates of any 2×2 inner square matrix in each of the square matrixes is equal to 2 (n 2 +1), the distance between any diagonal line in each of the square matrices is The sum of the numbers marked on the two coordinates of the coordinate unit is equal to n 2 +1, and the side length of the matrix is ​​a coordinate unit that is a multiple of 4.

7. The LED die mixing method according to claim 4, characterized in that: Step (b) further comprises: the sum of the numbers marked on the consecutive n coordinates of any diagonal of two adjacent square matrices is equal to The sum of the numbers marked on the coordinates of any 2×2 inner square matrix in each of the square matrices is equal to 2(n 2 +1), the two distances in each of the square arrays are The sum of the numbers marked on the diagonal coordinates is equal to n 2 +1, and the side length of the matrix is ​​a coordinate unit that is a multiple of 4.

8. The LED die mixing method according to any one of claims 4 to 7, characterized in that: n＝4。 9. The LED die mixing method according to claim 1, characterized in that: Step (b) further includes: the positions of the numbers marked by the multiple coordinates of the multiple square arrays are the same.

10. The LED die mixing method according to claim 1, characterized in that: Step (d) further includes: randomly placing the i×j LED dies of the same wavelength segment on coordinates marked with the same number in a plurality of the square arrays.

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