Think about how often you look at photos or watch videos on your mobile device. Although many people prefer the convenience of a small smartphone that can fit in their pocket, they will switch to a tablet for a slightly bigger display when they want a more comfortable viewing experience.
With the onset of 5G, streaming high-resolution content to mobile devices will only become easier and more prevalent. Consumers will want larger displays to take advantage of this widely available high-definition (HD) content. Using projection is a great way to achieve large screen sizes from a small device. In the past, designers had to choose from lower-resolution imagers in order to create the most compact products. Applications where consumers want high image quality to share pictures or watch video from a mobile device typically require 1080p resolution, as shown in Figure 1.
Figure 1: Leveraging a mobile projector or smartphone to view full HD content
With the latest DLP® Pico chipset, you can meet high-resolution requirements and create unique user experiences by embedding a full HD projector into mobile products. The DLP230NP chipset features a 0.23-inch 1080p digital micromirror device (DMD). Shown in Figure 2 with the DLPC3436 controller, it is the smallest microdisplay array on the market to deliver 1080p resolution (according to TI research as of the date of this post).
Figure 2: The DLP230NP DMD and DLPC3436 controller
Figure 3 shows two different examples of how projection can enable a multiuser experience rather than individual viewing. For example, you could consider designing a product that would allow your customers to share mobile content with friends by projecting it onto a wall or table rather than passing around a smartphone. You could also bring significant product differentiation to a smart speaker or smart display product by leveraging projection to create a display that can be seen from across the room rather than only when directly in front of the unit.
Figure 3: Mobile projectors, smartphones and smart displays enable multi-user viewing experiences
Enabling ultra-portable 1080p displays
Creating an ultra-portable 1080p display has several requirements, including a very small microdisplay, high optical efficiency to save power, and sufficient brightness for the projected image size desired.
What you need to start designing
The DLP230NP chipset is comprised of the 0.23-inch, 1080p DLP230NP DMD and the dedicated DLPC3436 display controller. The chipset also uses one of the DLPA2000, DLPA2005 or DLPA3000 integrated power-management integrated circuit (PMIC)/LED illumination drivers, depending on the amount of brightness and power required.
Figure 4 is a system block diagram of the DLP230NP, showing how the electrical components of the chipset are arranged with the appropriate illumination and optical components in order to create the projected image. An optical module is a compact assembly that includes a DMD, an LED-based illumination source, optics and associated mechanics.
Figure 4: Simplified application diagram for the DLP230NP chipset
Leverage production-ready optics to accelerate your design
Off-the-shelf optical modules reduce design time and get innovative products to market faster. TI collaborates with many optical engine manufacturers to offer developers a path to production-ready optical engines.
Manufacturers already developing optical modules for the DLP230NP chipset include ACTS, Shenzhen Anhua Optoelectronics Technology, Ongine Technology and Young Optics. Learn more at the DLP Pico Products optical engine site.
While a TV or tablet can’t fit in your pocket, the DLP230NP is enabling products that bring the big screen experience on the go. This chipset continues DLP Pico technology’s trajectory of enabling higher resolution displays from increasingly compact form factors. You can now pair the smallest and most affordable 1080p chipset in the DLP Products portfolio with production-ready optical engines to get to market quickly. Where will your customers take their portable 1080p display?
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