Display panel, method for manufacturing the same, display device and method for manufacturing the same

The display panel according to claim 52, wherein the first side surface is a left side surface, the second side surface is a lower side surface, the third side surface is an upper side surface, and the fourth side surface is a right side surface;

• the display panel further comprises a circuit board arranged on the lower surface, and the circuit board is arranged at a lower side edge of the display panel;
• a longest distance between an orthographic projection of each of the alignment mark regions onto the first plane and a lower left rounded corner of an orthographic projection of a display region boundary of the display panel onto the first plane is smaller than a predetermined distance, and/or, a longest distance between the orthographic projection of each of the alignment mark regions onto the first plane and a lower right rounded corner of the orthographic projection of the display region boundary of the display panel onto the first plane is smaller than the predetermined distance;
• or,
• wherein the first side surface is a left side surface, the second side surface is a lower side surface, the third side surface is an upper side surface, and the fourth side surface is a right side surface;
• the display panel further comprises a circuit board arranged on the lower surface, and the circuit board is arranged at an upper side edge of the display panel;
• a longest distance between an orthographic projection of each of the alignment mark regions onto the first plane and an upper left rounded corner of an orthographic projection of a display region boundary of the display panel onto the first plane is smaller than a predetermined distance, and/or, a longest distance between the orthographic projection of each of the alignment mark regions onto the first plane and an upper right rounded corner of the orthographic projection of the display region boundary of the display panel onto the first plane is smaller than the predetermined distance;
• or,
• wherein the first side surface is a left side surface, the second side surface is a lower side surface, the third side surface is an upper side surface, and the fourth side surface is a right side surface;
• the display panel further comprises a circuit board arranged on the lower surface, and the circuit board is arranged at a lower side edge of the display panel;
• a longest distance between an orthographic projection of each of the alignment mark regions onto the first plane and an upper left rounded corner of an orthographic projection of a display region boundary of the display panel onto the first plane is smaller than a predetermined distance, and/or, a longest distance between the orthographic projection of each of the alignment mark regions onto the first plane and an upper right rounded corner of the orthographic projection of the display region boundary of the display panel onto the first plane is smaller than the predetermined distance;
• or,
• wherein the first side surface is a left side surface, the second side surface is a lower side surface, the third side surface is an upper side surface, and the fourth side surface is a right side surface;
• the display panel further comprises a circuit board arranged on the lower surface, and the circuit board is arranged at an upper side edge of the display panel;
• a longest distance between an orthographic projection of each of the alignment mark regions onto the first plane and a lower left rounded corner of an orthographic projection of a display region boundary of the display panel onto the first plane is smaller than a predetermined distance, and/or, a longest distance between the orthographic projection of each of the alignment mark regions onto the first plane and a lower right rounded corner of the orthographic projection of the display region boundary of the display panel onto the first plane is smaller than the predetermined distance.

A method for manufacturing a display panel, wherein the display panel comprises a display region and a peripheral region arranged on a substrate, the peripheral region comprises a region between the display region and an edge of the display panel, the peripheral region comprises a flat region and a curved region, and the flat region comprises a flat redundant driving circuit region;

• the method for manufacturing the display panel comprises:
• arranging a plurality of pixel units in the display region, and arranging a plurality of active driving circuits and a plurality of redundant driving circuits in the peripheral region;
• arranging at least part of the redundant driving circuits in the flat redundant driving circuit region, wherein each of the redundant driving circuits comprises one or more electrode layers arranged on the substrate;
• arranging alignment mark regions in the flat redundant driving circuit region;
• and
• in each of the alignment mark regions, hollowing out at least one of the electrode layers, and/or filling up at least one of the electrode layers;
• wherein a minimum distance between edges of orthographic projections of two adjacent alignment mark regions of the alignment mark regions onto the substrate is an alignment mark distance, and at least one alignment mark distance is larger than a predetermined alignment mark distance.

A method for manufacturing a display device, wherein the display device comprises a display panel, a heat dissipation film and an encapsulation cover plate, the display panel comprises a display region and a peripheral region arranged on a substrate, the peripheral region comprises a region between the display region and an edge of the display panel, the peripheral region comprises a flat region and a curved region, and the flat region comprises a flat redundant driving circuit region;

• the method for manufacturing the display device comprises:
• arranging a plurality of pixel units in the display region, and arranging a plurality of active driving circuits and a plurality of redundant driving circuits in the peripheral region;
• arranging at least part of the redundant driving circuits in the flat redundant driving circuit region, wherein each of the redundant driving circuits comprises one or more electrode layers arranged on the substrate;
• arranging alignment mark regions in the flat redundant driving circuit region;
• in each of the alignment mark regions, hollowing out at least one of the electrode layers, and/or filling up at least one of the electrode layers;
• and
• aligning and laminating the display panel with the encapsulation cover plate, and aligning and laminating the display panel with the heat dissipation film by using the alignment mark regions;
• wherein a minimum distance between edges of orthographic projections of two adjacent alignment mark regions of the alignment mark regions onto the substrate is an alignment mark distance, and at least one alignment mark distance is larger than a predetermined alignment mark distance.