Patent ID: 8400438

Claim:
A display apparatus comprising: a display panel on which a plurality of pad parts are formed; a driving chip comprising a plurality of bumps, each of the bumps making contact with a corresponding pad part of the plurality of pad parts; and a non-conductive adhesive film disposed between the display panel and the driving chip to attach the driving chip to the plurality of pad parts, wherein each bump of the plurality of bumps comprises: a connection line; a protection layer provided with a contact hole formed therethrough exposing a portion of the connection line; a step-difference portion which comprises a non-conductive elastic polymer and is spaced apart from the contract hole; and a bump line formed on the step-difference portion, having a fine pattern through which an upper surface of the step-difference portion is exposed, and making contact with the pad part, wherein the non-conductive adhesive film is disposed in the fine pattern.