Display device and manufacturing method thereof
A display device in which reliability of a display element is improved is provided. Alternatively, a display device in which reliability of a transistor is improved is provided. Alternatively, a display device in which an increase in an area of a periphery region is suppressed is provided. A display device includes a display region including a display element between a first flexible substrate and a second flexible substrate in which the display region is surrounded by a first continuous sealant, the first sealant is surrounded by a second continuous sealant, and the second sealant is provided between the first substrate and the second substrate and on at least one of a side surface of the first substrate and a side surface of the second substrate.
1. A method for manufacturing a display device, comprising:
forming an insulating film over and in contact with a first substrate with flexibility;
forming a first sealant continuously surrounding a display region over the insulating film;
irradiating the first sealant with a first laser beam;
bonding a second substrate with flexibility to the first substrate with the first sealant;
irradiating the first sealant with a second laser beam;
forming a second sealant continuously surrounding the first sealant in a gap between the first substrate and the second substrate and on a side surface of the first substrate and a side surface of the second substrate; and
forming a member in contact with a side surface of the second sealant,
wherein the member comprises a bottom surface portion in contact with a top surface of the insulating film.
2. The method according to claim 1 , wherein the first sealant comprises glass.
3. The method according to claim 1 , wherein the second sealant comprises a resin material or glass.
4. The method according to claim 1 , wherein the member comprises a metal material.
5. The method according to claim 1 , wherein the member surrounds the second sealant.
6. The method according to claim 1 , wherein a wavelength of the first laser beam is 810 nm or 940 nm.
7. The method according to claim 1 , wherein the second laser beam is irradiated from a side surface direction of the first substrate.
8. A method for manufacturing a display device, comprising:
forming an insulating film over and in contact with a first substrate with flexibility;
forming a first sealant continuously surrounding a display region over the insulating film;
irradiating the first sealant with a first laser beam;
bonding a second substrate with flexibility to the first substrate with the first sealant;
irradiating the first sealant with a second laser beam;
forming a second sealant continuously surrounding the first sealant in a gap between the first substrate and the second substrate and on a side surface of the first substrate and a side surface of the second substrate;
forming a member in contact with a side surface of the second sealant; and
forming an FPC over the first substrate,
wherein the member comprises a bottom surface portion in contact with a top surface of the insulating film.
9. The method according to claim 8 , wherein the first sealant comprises glass.
10. The method according to claim 8 , wherein the second sealant comprises a resin material or glass.
11. The method according to claim 8 , wherein the member comprises a metal material.
12. The method according to claim 8 , wherein the member surrounds the second sealant.
13. The method according to claim 8 , wherein a wavelength of the first laser beam is 810 nm or 940 nm.
14. The method according to claim 8 , wherein the second laser beam is irradiated from a side surface direction of the first substrate.