Display device and electronic device

A display device comprising:

• a first display panel;
• a second display panel being at least partly flexible;
• and
• a light-transmitting layer,
• wherein the first display panel includes a first region and a light-blocking region,
• wherein the first region has a function of performing display,
• wherein the second display panel includes a second region and a third region,
• wherein the second region has a function of performing display,
• wherein the third region is adjacent to the second region,
• wherein the third region has a function of transmitting visible light,
• wherein the light-transmitting layer includes a light-transmitting material having a transmittance with respect to light in a wavelength range of 450 nm to 700 nm of 80% or more on the average, and a higher refractive index than air,
• wherein the light-transmitting layer is between the first display panel and the second display panel,
• wherein the light-transmitting layer is positioned on a display surface side of the first display panel,
• wherein the light-transmitting layer is positioned on a side opposite to a display surface side of the second display panel,
• wherein the second display panel is bent in at least one of the second region and the third region,
• wherein the third region overlaps part of the first region with the light-transmitting layer provided therebetween,
• wherein a surface of the first display panel on a side opposite to the display surface side of the first display panel is a first surface of the first display panel, and
• wherein a flexible printed circuit is in contact with and electrically connected to the first surface of the first display panel.