Display panel, manufacturing method thereof, display device, and substrate

A manufacturing method of a display panel, comprising:

• providing a first substrate;
• forming a sealing member on the first substrate, wherein the forming the sealing member comprises forming a first retaining wall on the first substrate, and forming a first sealant on a side of the first retaining wall away from the first substrate, wherein an elastic modulus of a material of the first sealant is greater than an elastic modulus of a material of the first retaining wall;
• providing a second substrate;
• and
• cell-assembling a side of the first substrate on which the sealing member is formed and the second substrate to form the display panel, wherein the display panel comprises a display area and a peripheral area surrounding the display area, the sealing member is formed in the peripheral area and hermetically connects the first substrate and the second substrate,
• wherein the first retaining wall is at least one continuous ring of retaining wall surrounding the display area, and wherein the forming the sealing member further comprises:
• in a direction perpendicular to the first substrate, before forming the first sealant, forming a second retaining wall on the second substrate, and then forming the first sealant on the first retaining wall or the second retaining wall to connect the first retaining wall and the second retaining wall, wherein the second retaining wall is a continuous ring of retaining wall surrounding the display area, and the elastic modulus of the material of the first sealant is greater than an elastic modulus of a material of the second retaining wall.

A substrate, comprising:

• a base substrate;
• and
• a sealing member, disposed in a peripheral area of the base substrate, wherein the sealing member comprises a first sealant and a first retaining wall, an orthographic projection of the first retaining wall on the base substrate is at least partially overlapped with an orthographic projection of the first sealant on the base substrate, and an elastic modulus of a material of the first sealant is greater than an elastic modulus of a material of the first retaining wall, and
• wherein the sealing member further comprises a second retaining wall, wherein, in a direction perpendicular to the base substrate, the second retaining wall is disposed on a side of the first sealant away from the base substrate, and is in contact with the first sealant, the second retaining wall is a continuous ring of retaining wall, and the elastic modulus of the material of the first sealant is greater than an elastic modulus of a material of the second retaining wall.