Display panel, flexible circuit board and display device

A flexible circuit board, comprising:

• a base;
• and
• at least one row of a plurality of output pads arranged along a first direction, disposed on a side of the base, wherein:
• the plurality of output pads include at least one first-output pad and a plurality of second-output pads, wherein:
• a first-output pad of the at least one first-output pad is extended along a second direction, wherein the second direction intersects the first direction,
• the at least one first-output pad forms a first-output pad group,
• the plurality of second-output pads constitutes second-output pad groups, and two of the second-output pad groups are disposed on both sides of the first-output pad group, respectively,
• each output pad of the plurality of output pads includes a first end and a second end that are oppositely disposed in respective extension direction thereof, and a spacing between any adjacent two output pads of the plurality of output pads includes a first spacing and a second spacing, wherein:
• the first spacing is a spacing between two first ends of the adjacent two output pads in the first direction,
• the second spacing is a spacing between two second ends of the adjacent two output pads in the first direction, and
• in any one second-output pad group, the first spacing and the second spacing between adjacent two second-output pads are not equal, and
• in the first direction, along a direction from the first-output pad group to the second-output pad group, starting from adjacent first-output and second-output pads, the first spacing successively and gradually increases, and the second spacing successively and gradually increases,
• the output pads are arranged in such a way that, in a process of bonding the flexible circuit board to a display panel having a plurality of input pads with a one-to-one correspondence between the input pads and the output pads, a spacing variation of the output pads matches a spacing variation of the input pads in the display panel, and the first-input pad group is configured as a center for alignment between the input pads of the display panel and the output pads of the flexible circuit board, and the second-input pad group is configured to align with corresponding output pads of the flexible circuit board by moving the flexible circuit board up or down.

A display device, comprising a display panel, wherein the display panel includes:

• a substrate;
• and
• at least one row of a plurality of input pads arranged along a first direction, disposed in a bonding region of the substrate, wherein:
• the plurality of input pads includes at least one first-input pad and a plurality of second-input pads, wherein:
• a first-input pad of the at least one first-input pad is extended along a second direction, wherein the second direction intersects the first direction,
• the at least one first-input pad forms a first-input pad group,
• the plurality of second-input pads constitutes second-input pad groups, and two of the second-input pad groups are disposed on both sides of the first-input pad group, respectively,
• each input pad of the plurality of input pads includes a first end and a second end that are oppositely disposed in a respective extension direction thereof, and a spacing between any adjacent two input pads of the plurality of input pads includes a first spacing and a second spacing, wherein:
• the first spacing is a spacing between two first ends of the adjacent two input pads in the first direction,
• the second spacing is a spacing between two second ends of the adjacent two input pads in the first direction, and
• in any one second-input pad group, the first spacing and the second spacing between adjacent two second-input pads are not equal, and
• in the first direction, along a direction from the first-input pad group to the second-input pad group, starting from adjacent first-input and second-input pads, the first spacing successively and gradually increases, and the second spacing successively and gradually increases,
• wherein the display device further includes a flexible circuit board bond to the display panel, the flexible board includes a plurality of output pads, the plurality of output pads have a one-to-one correspondence with the plurality of input pads, and a spacing variation of the output pads in the flexible circuit board matches a spacing variation of the input pads in the display panel, and the first-input pad group is configured as a center for alignment between the input pads of the display panel and the output pads of the flexible circuit board, and the second-input pad group is configured to align with corresponding output pads of the flexible circuit board by moving the flexible circuit board up or down.