DLP has two meanings, one is Digital Light Processing, and the other is Data Loss Prevention. Based on the context of your question, I will explain DLP related to 3D printing, which is Digital Light Processing.What is DLP (Digital Light Processing)?
DLP is a technology that uses Digital Micromirror Devices (DMD) and ultraviolet (UV) light sources for stereolithography. This technology projects images using a projector to cure photosensitive polymer liquids layer by layer, thus creating 3D printed objects. DLP technology was originally developed by Texas Instruments (TI) for projection display devices and later applied to the field of 3D printing.What is a DLP 3D printer?
A DLP 3D printer is a type of 3D printing equipment that utilizes Digital Light Processing technology. Its working principle is as follows:1. Digital Micromirror Device (DMD): The DMD is the core component of the DLP 3D printer, consisting of thousands or even millions of micromirrors, each of which can be controlled independently to reflect or block light.2. Light Curing Process: During the DLP 3D printing process, UV light from the light source passes through the DMD. The DMD controls whether the light shines on the photosensitive resin based on the digital pattern generated by the computer. The resin that is exposed to the light quickly cures, forming a solid layer.3. Layer-by-Layer Stacking: After each layer is cured, the printing platform descends by one layer, and the process is repeated until the entire model is printed. In this way, solid layers are stacked on top of each other to eventually form a three-dimensional object.