Display devices and watches including the same

A watch, comprising a watchband and a display device, wherein the display device comprises:

• a first middle frame, wherein the first middle frame comprises a first frame body and a first support body disposed on the first frame body;
• a second middle frame, wherein the second middle frame and the first middle frame are disposed slidably, and the second middle frame comprises a second frame body and a second support body disposed on the second frame body;
• a first rack, wherein the first rack is fixedly disposed on the second middle frame;
• a first gear, wherein the first gear is disposed inside the first frame body and engaged with the first rack;
• a driving assembly, wherein the driving assembly is disposed inside the first middle frame and configured to drive the first gear to rotate;
• the driving assembly comprises a rotation axis, a second gear, a third gear, and a substrate module;
• the rotation axis is disposed inside the first middle frame;
• the second gear is sleeved on a peripheral side of the rotation axis and disposed on a side of the first gear;
• the third gear is disposed inside the first middle frame;
• the watchband is connected to a side of the substrate module, and the substrate module comprises a substrate and a latch disposed on the substrate;
• a flexible panel, wherein the flexible panel is disposed on the first support body and the second support body;
• a rolling up element, wherein the rolling up element is configured to roll up the flexible panel;
• and
• a third middle frame, wherein the third middle frame comprises a third frame body and a third support body disposed on the third frame body;
• the first frame body is inserted into the second frame body, and the third frame body is inserted into the first frame body;
• wherein a bottom of the second frame body is provided with a first opening channel configured to dodge the latch;
• a bottom of the third frame body is provided with a second opening channel configured to dodge the third gear;
• a side wall of the third frame body is equipped with a third opening channel configured to dodge the rotation axis.

A display device, comprising:

• a first middle frame, wherein the first middle frame comprises a first frame body and a first support body disposed on the first frame body;
• the first support body comprises a support part and is provided with a first chute and a second chute, and the support part is disposed between the first chute and the second chute;
• a second middle frame, wherein the second middle frame and the first middle frame are disposed slidably, and the second middle frame comprises a second frame body and a second support body disposed on the second frame body;
• a first rack, wherein the first rack is fixedly disposed on the second middle frame;
• a first gear, wherein the first gear is disposed inside the first frame body and engaged with the first rack;
• a driving assembly, wherein the driving assembly is disposed inside the first middle frame and configured to drive the first gear to rotate;
• a flexible panel, wherein the flexible panel is disposed on the first support body and the second support body;
• and
• a rolling up element, wherein the rolling up element is configured to roll up the flexible panel;
• wherein the first chute comprises an upper slot and a lower slot interconnected to each other, and a width of the lower slot is greater than a width of the upper slot;
• the second support body comprises a lower support part and an upper support part disposed on the lower support part, and a width of the upper support part is less than a width of the lower support part;
• and the upper support part is disposed in the upper slot, and the lower support part is disposed in the lower slot.