The present invention provides a display panel, a display module, and a display device. The display panel includes a substrate and micro-LEDs. The display module achieves an extremely-narrow-bezel design by attaching a support plate to one side of a flexible drive circuit board of the display panel, bending a bending region, and attaching a bonding region to another side of the support plate. Multiple display modules are arranged in a accommodating chamber defined by a back plate of the display device and are fixed and joined to each other. Accordingly, a narrow-gap joining technology for micro-LED is realized, thus solving a problem that the micro-LED is too small in size, and realizing large-sized micro-LED displays.