数字光处理（Digital Light Processing，缩写：DLP）是一项使用在投影仪和背投电视中的显像技术。DLP技术最早是由德州仪器开发的。它至今仍然是此项技术的主要供应商。现在，DLP技术被很多许可制造商所采用，他们销售的产品都是基于德州仪器芯片组的。德国德累斯顿Fraunhofer学院（The Fraunhofer Institute of Dresden）也生产有着特殊用途的数字光处理器，并把它称作空间光调节器（Spatial Light Modulators，SLM）。例如，瑞典Micronic激光系统公司（Micronic Laser Systems of Sweden）就在其开发的Sigma印版硅模板刻印机中，利用Fraunhofer生产的空间光调节器来生成远紫外线图像。

Digital Light Processing (DLP) is a display device based on optical micro-electro-mechanical technology that uses a digital micromirror device. It was originally developed in 1987 by Dr. Larry Hornbeck of Texas Instruments. While the DLP imaging device was invented by Texas Instruments, the first DLP-based projector was introduced by Digital Projection Ltd in 1997. Digital Projection and Texas Instruments were both awarded Emmy Awards in 1998 for the DLP projector technology. DLP is used in a variety of display applications from traditional static displays to interactive displays and also non-traditional embedded applications including medical, security, and industrial uses.