Flexible circuit board and cutting device

Patent metadata

Field	Value
Publication number	US-9903906-B2
Application number	US-201615184595-A
Country	US
Kind code	B2
Filing date	Jun 16, 2016
Priority date	Sep 21, 2015
Publication date	Feb 27, 2018
Grant date	Feb 27, 2018

Abstract

A flexible circuit board and a cutting device are provided. The flexible circuit board includes a board body including a cutting region. A plurality rows of testing terminals are located in the cutting region, a first spacing being provided between two adjacent rows of testing terminals. The testing terminals can be respectively cut off from the board body along a cutting direction which is along the extending direction of the first spacing in the board body. A testing circuit is located on a surface of the board body. The testing circuit is arranged in a region outside the cutting region and the testing circuit is independently and electrically connected to each row of the testing terminals.

First claim

What is claimed is:

1. A flexible circuit board, comprising:
a board body including a cutting region;
a plurality rows of testing terminals located in the cutting region, wherein a first spacing is provided between two adjacent rows of testing terminals, and each row of the testing terminals can be respectively cut off from the board body along a cutting direction which is along the extending direction of the first spacing in the board body;
multiple lines of via holes, wherein each line of the via holes corresponds to each row of the testing terminals, and each line of the via holes includes two via holes respectively located at two sides of the corresponding testing terminal row; and
a testing circuit located on a surface of the board body, wherein the testing circuit is arranged in a region outside the cutting region and the testing circuit is independently and electrically connected to each row of the testing terminals;
wherein the via holes in each line are offset from the corresponding testing terminal toward the testing circuit.

2. The flexible circuit board according to claim 1 , wherein each of the testing terminals is in a shape of rectangle, and the cutting direction is parallel to the length direction of the testing terminal row.

3. The flexible circuit board according to claim 2 , wherein a gap is provided between each via hole and a corresponding end of the corresponding testing terminal row, and the distance between two via holes in each line is equal to each other.

4. The flexible circuit board according to claim 3 , wherein the first spacing between each of two adjacent rows of testing terminals is equal to each other, and a second spacing between each of two adjacent lines of via holes is equal to each other.

5. A cutting device for cutting the flexible circuit board according to claim 1 , comprising:
a fixing component configured to fix the flexible circuit board and expose the first spacing and its extending region on the board body; and
a cutter configured to cut the testing terminals from the flexible circuit board along the first spacing and its extending region on the board body.

6. The cutting device according to claim 5 , wherein each of the testing terminals is in a shape of rectangle, and the cutting direction is parallel to the length direction of the testing terminal row.

7. The cutting device according to claim 6 , wherein the distance between two via holes in each line is equal.

8. The cutting device according to claim 7 , wherein the fixing component of the cutting device comprises a first fixing element and two locating pins disposed on an upper surface of the first fixing element, and a distance between the two locating pins is equal to the distance between two via holes in each line of the flexible circuit board, and the locating pins are configured to pass through the two via holes in each line of the flexible circuit board to fix the flexible circuit board.

9. The cutting device according to claim 8 , wherein the first spacing between each of two adjacent rows of the testing terminals of the flexible circuit board is equal to each other, and the second spacing between each of two adjacent lines of the via holes is equal; the via holes in each line are offset from the corresponding testing terminals toward the testing circuit; based on a distance between each of the testing terminals and the testing circuit, the plurality rows of testing terminals are respectively a first row of testing terminals, a second row of testing terminals, . . . , a n th row of testing terminals from far to near, and the corresponding n lines of via holes are respectively a first line of via holes, a second line of via holes, . . . , a n th line of via holes; and
an upper surface of the first fixing element of the cutting device includes a first edge along the cutting direction; if the X th testing terminal needs to be cut out, the x th line of via holes are fixed with the locating pins, and the first edge of 1 the first fixing element is located at the first spacing between the x th testing terminal and the X+1 th testing terminal;
where n is a natural number being equal or larger than 2; and X is a natural number falling within a range of 1˜n−1.

10. The cutting device according to claim 9 , wherein the fixing component further comprises a second fixing element; wherein the second fixing element has two locating holes in its lower surface; a distance between the two locating holes is equal to the distance between the two locating pins; the locating pins are configured to be inserted into the locating holes to allow the lower surface of the second fixing element being pressed against the upper surface of the first fixing element and the first edge of the first fixing element is aligned with a second edge of the second fixing element.

11. The cutting device according to claim 10 , wherein the first fixing element is configured with a first attracting element; the second fixing element is configured with a second attracting element which mutually attracts the first attracting element; the first attracting element and the second attracting element are fixed together through mutual attraction to allow the lower surface of the second fixing element is pressed against the upper surface of the first fixing element.

12. The cutting device according to claim 10 , wherein a first attracting element is embedded in the first fixing element; a second attracting element is embedded in the second fixing element, which mutually attracts each other; the first attracting element and the second attracting element are fixed together through mutual attraction to allow the lower surface of the second fixing element being pressed against the upper surface of the first fixing element.

13. The cutting device according to claim 11 , wherein the first fixing element and the second fixing element each has a slide way; and the direction of the slide ways is parallel to the cutting direction; and
the cutter has a cutting part and two slidable parts connected with the cutting part, and the slidable parts can slip in the slide ways and can slide in the slide ways, respectively; the cutting part can slide along the first edge of the first fixing element as the slidable parts slide in the slide ways, respectively.

14. The cutting device according to claim 13 , wherein the slide way of the first fixing element is arranged between the upper surface and the first edge of the first fixing element, and the slide way of the second fixing element is arranged between the lower surface and the second edge of the second fixing element.

Assignees

• Boe Technology Group Co Ltd
• Boe Hebei Mobile Display Technology Co Ltd

Inventors

• Yang Guowen
• Zhang Ze
• Chen Lantao

Classifications

• H05K1/115

  Via connections; Lands around holes or via connections (H05K1/112 takes precedence) · CPC title

• H05K2203/16

  Inspection; Monitoring; Aligning · CPC title

• H05K2203/0228

  Cutting, sawing, milling or shearing · CPC title

• G09G3/006

  Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309) · CPC title

• H05K3/0044

  Mechanical working of the substrate, e.g. drilling or punching (H05K3/0008 takes precedence) · CPC title