Light-Emitting Device and Electronic Device

A light-emitting device comprising:

• a pixel portion;
• a first driver circuit;
• a second driver circuit;
• and
• an FPC,
• wherein the pixel portion comprises:
• a transistor over a first flexible substrate;
• a planarization layer over the first flexible substrate and the transistor;
• an organic EL element over the planarization layer, wherein the organic EL element is electrically connected to the transistor;
• an adhesive layer over the planarization layer and the organic EL element;
• and
• a second flexible substrate over the adhesive layer,
• wherein a first thickness from the first flexible substrate to the planarization layer is 0.8 to 1.2 times as large as a second thickness from the second flexible substrate to the adhesive layer,
• wherein the first driver circuit and the second driver circuit are over the first flexible substrate,
• wherein the second driver circuit is provided on an opposite side of the first driver circuit across the pixel portion, and
• wherein the FPC does not comprise a region sandwiched between the first flexible substrate and the second flexible substrate.

A light-emitting device comprising:

• a pixel portion;
• a first driver circuit;
• a second driver circuit;
• and
• an FPC,
• wherein the pixel portion comprises:
• a transistor over a first surface of a first flexible substrate;
• a planarization layer over the first flexible substrate and the transistor;
• an organic EL element over the planarization layer, wherein the organic EL element is electrically connected to the transistor;
• an adhesive layer over the planarization layer and the organic EL element;
• and
• a second flexible substrate over the adhesive layer,
• wherein the first flexible substrate comprises a second surface opposite to the first surface;
• wherein the second flexible substrate comprises a third surface at the adhesive layer side and a fourth surface opposite to the third surface,
• wherein a first distance from an interface between the planarization layer and the adhesive layer to the second surface is 0.8 to 1.2 times as large as a second distance from the interface to the fourth surface,
• wherein the first driver circuit and the second driver circuit are over the first flexible substrate,
• wherein the pixel portion is between the second driver circuit and the first driver circuit, and
• wherein the FPC does not comprise a region sandwiched between the first flexible substrate and the second flexible substrate.

A light-emitting device comprising:

• a pixel portion;
• a first driver circuit;
• a second driver circuit;
• and
• an FPC,
• wherein the pixel portion comprises:
• a transistor over a first flexible substrate;
• a planarization layer over the first flexible substrate and the transistor;
• an organic EL element over the planarization layer, wherein the organic EL element is electrically connected to the transistor;
• an adhesive layer over the planarization layer and the organic EL element;
• and
• a second flexible substrate over the adhesive layer,
• wherein a neutral plane is positioned in the planarization layer, in the transistor, in the organic EL element, or near both the transistor and the organic EL element,
• wherein the first driver circuit and the second driver circuit are over the first flexible substrate,
• wherein the second driver circuit is provided on an opposite side of the first driver circuit across the pixel portion, and
• wherein the FPC does not comprise a region sandwiched between the first flexible substrate and the second flexible substrate.