Electronic device

1. An electronic device, comprising:

a supporting board provided with a circuit layer;

an electrical board having a board body, a plurality of through holes passing through the board body, an electrical layer arranged on the board body, and a plurality of primary conductive elements respectively arranged in the through holes, wherein the board body is defined with a first surface and a second surface opposite to each other, the through holes communicate with the first surface and the second surface of the board body, and the primary conductive elements electrically connect the electrical layer to the circuit layer of the supporting board; and

a plurality of electronic units arranged on the first surface of the board body, wherein each of the electronic units is partially overlapped with one of the through holes in a projection direction of the electrical board, each of the electronic units has an electronic component and a secondary conductive element electrically connecting the electronic component to the electrical layer;

wherein, the secondary conductive elements of the electronic units and the primary conductive elements of the electrical board are arranged in dislocation in the projection direction of the electrical board.

2. The electronic device of claim 1 , wherein each of the electronic units defines a plurality of corners, and one of the corners of each of the electronic units is overlapped by one of the through holes in the projection direction of the electrical board.

3. The electronic device of claim 1 , wherein each of the electronic units defines a plurality of corners, and one of the through holes overlaps the corners of one or ones of the electronic units in the projection direction of the electrical board.

4. The electronic device of claim 1 , wherein the electronic units are arranged in an m*n array, and cover at least one of the through holes in the projection direction of the electrical board, and m and n are equal or unequal positive integers.

5. The electronic device of claim 1 , wherein each of the electronic units comprises a plurality of the secondary conductive elements, and each of the secondary conductive elements electrically connects the corresponding electronic component to the electrical layer.

6. The electronic device of claim 1 , wherein the electronic device comprises a plurality of the electrical boards.

7. The electronic device of claim 1 , wherein each of the supporting board and the board body of the electrical board are resilient.

8. An electronic device, comprising:

a supporting board provided with a circuit layer;

an electrical board having a board body, an electrical layer arranged on the board body, and a plurality of primary conductive elements electrically connected to the electrical layer, wherein the board body is defined with a first surface and a second surface opposite to each other, and the primary conductive elements electrically connect the electrical layer to the circuit layer of the supporting board; and

a plurality of electronic units arranged on the first surface of the board body, wherein each of the electronic units is partially overlapped with one of the primary conductive elements in a projection direction of the electrical board, each of the electronic units has an electronic component and a secondary conductive element electrically connecting the electronic component to the electrical layer;

wherein, the secondary conductive elements of the electronic units and the primary conductive elements of the electrical board are arranged in dislocation in the projection direction of the electrical board.

9. The electronic device of claim 8 , wherein each of the electronic units is a surface mounted device.

10. The electronic device of claim 8 , wherein each of the electronic units defines a plurality of corners, and one of the corners of each of the electronic units is overlapped by one of the primary conductive elements in the projection direction of the electrical board.

11. The electronic device of claim 8 , wherein each of the electronic units defines a plurality of corners, and one of the primary conductive elements overlaps the corners of one or ones of the electronic units in the projection direction of the electrical board.

12. The electronic device of claim 8 , wherein the electronic units are a plurality of electronic structures, each of the electronic structures comprises a carrier board, and the electronic component is arranged on the carrier board.

13. The electronic device of claim 8 , wherein the electronic component is a micro photoelectric chip.

14. The electronic device of claim 8 , wherein the electronic unit further comprises an encapsulation layer for encapsulating the electronic component.

15. The electronic device of claim 8 , wherein the electronic units form an electronic structure, the electronic structure comprises a carrier board, and the electronic components of the electronic units are arranged on the carrier board.

16. The electronic device of claim 8 , wherein the electronic units are arranged in an m*n array, and cover at least one of the primary conductive elements in the projection direction of the electrical board, and m and n are positive integers.

17. The electronic device of claim 8 , wherein each of the electronic units comprises a plurality of the secondary conductive elements, and each of the secondary conductive elements electrically connects the corresponding electronic component to the electrical layer.

18. The electronic device of claim 8 , wherein the secondary conductive element of each of the electronic units is a solder bump.

19. The electronic device of claim 8 , wherein the electrical board further comprises a plurality of driving components, and the driving components are respectively corresponding to the electronic components of the electronic units.

20. The electronic device of claim 19 , wherein the driving component is a thin-film transistor (TFT) or an integrated circuit (IC).