Samsung Display Co., Ltd.

Kyung-Mok Lee

Hirotsugu Kishimoto

Daegeun Lee

Suk-Ho Lee

Dong-youb Lee

Hojin Kang

Wuhyen Jung

Minsung Kwon

A display device includes a folding area at which the display device is foldable; a first non-folding area and a second non-folding area opposing each other with the folding area therebetween; a display panel; an adhesive member having a thickness of about 15 micrometers to about 18 micrometers; and a protective film facing the display panel with the adhesive member having the thickness of about 15 micrometers to about 18 micrometers therebetween, the adhesive member coupling the protective film to the display panel.

Display device having adhesive member at folding area

A display panel measures a contact resistance of an adhesive portion to evaluate adhesion quality of an integrated circuit mounted thereon. The display panel includes a plurality of light-emitting elements, a first pad part including a plurality of first effective pads electrically connected to the light-emitting elements, and n (n being a natural number equal to or greater than 2) first measuring pads insulated from the light-emitting elements, a conductive adhesive film on the first pad part and including a plurality of conductive balls, an integrated circuit on the conductive adhesive film, and including an internal line electrically connected to the first measuring pads by the conductive balls, and a second pad part including a plurality of second effective pads electrically connected to the first effective pads, and 2n second measuring pads electrically connected to the first measuring pads.

Display panel and display panel test system

Growing community of inventors

Bucheon-si, South Korea

Kyung-Mok Lee