OL23C-D20 is a monocular Micro-display module used for augmented reality. It uses a 0.23-inch high-brightness screen with a brightness of 3000cd/m . Optics is a free-form prism,The material is high-quality material. Simply plug in to light up screen. PS:If signal source device is not adaptive, the signal source resolution should be adjusted to 640 x 480. Otherwise, it may not be displayed or screen may not be full, or screen may be split. Additionally, your signal source output port must have video output The driver board of AV interface can light up screen by supplying 3.5-5V and AV video signals. The display module is widely used in portable display devices due to its small size, low power consumption, and light weight, reducing customer development cycles and costs. It can be easily applied to customer product development and design. Color: As Shown Material: PCB Package Contents: 1 * -compatible Board Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.