Display device and electronic device including the same

An electronic device comprising:

• a display device comprising:
• a display panel;
• a glass substrate over the display panel;
• and
• an adhesive member between the display panel and the glass substrate;
• a hinge assembly coupled to the display device and configured to convert the display device between an unfolded state and a folded state;
• and
• a housing coupled to the display device and the hinge assembly, wherein the adhesive member has a stress relaxation (SR) in a range of 70% to 85%, and
• wherein the stress relaxation (SR) of the adhesive member is given by Equation 1:
• SR
• =
• [
• 1
• -
• (
• X
• 2
• /
• X
• 1
• )
• ]
• ×
• 100
• ⁢
• %
• wherein, X1 is a first shear stress measured immediately after application of 25% shear strain at a temperature of 25° C., and X2 is a second shear stress measured 1 hour after the application of 25% shear strain at a temperature of 25° C.