There are many components to building your own home theater system, starting with a projector. For a picture like you see at the cinema, you’ll need to get a home theater projector that’s capable of true 4K resolution, with 3840x2160 or 4096x2160 pixels. The more pixels, the more vivid the picture contents are. The technology that’s used inside your projector to produce the picture is important too. DLP (Digital Light Processing) is the leading projection display technology on the market. The DLP chip inside BenQ’s 4K projectors uses a technology called pixel-shifting, which can achieve true 4K resolution with 8.3 million distinct pixels.

We’ve put together a few questions to help you pick out the right 4K DLP projector.

CTA (Consumers Technology Association), defines 4K UHD, or True 4K, as visuals that must deliver 8.3 million distinct pixels on the screen, which is four times the resolution of Full HD 1080p. 4K resolution produces sharp, detailed images, enhacing the home theater experience.

Our True 4K DLP technology, developed by Texas Instruments, empowers projectors to achieve authentic 4K resolution with 8.3 million distinct pixels, regardless of the native pixel count on the DMD chip. It achieves this by either doubling the DMD's 2716x1528 pixels or quadrupling the DMD chip's 1920x1080 pixels, resulting in a genuine 4K quality with lightning-fast pixel shifting speed.

Both True 4K DLP Technology for DLP projectors and 4K-Enhancement Technology for other projector systems utilize pixel-shifting techniques, but they yield fundamentally different results.

True 4K DLP Technology

True 4K DLP Technology generates 8.3 million distinct pixels, achieved by doubling the DMD's 2716x1528 pixels or quadrupling the DMD chip's 1920x1080 pixels. This results in a genuine 4K resolution of 8.3 million pixels, all at a rapid pixel shifting rate.

4K-Enhancement Technology

4K-Enhancement Technology can only produce 4.1 million pixels by doubling the native 1920x1080 pixel resolution, falling short of the 8.3 million pixels required for true 4K resolution. This is due to the nature of liquid crystals, which can’t withstand the switching speed required to produce 8.3 million pixels.

In order to enjoy 4K HDR you’ll need the following items:

• A 4K Blu-ray player
• A BenQ 4K HDR projector
• Make sure source output is set to 3840x2160 at 60 Hz
• Make sure the BenQ 4K HDR projector uses the correct HDMI color range (full or limited of RGB, YUV limited). Also be sure to confirm the source player output.
• 4K movies or 4K videos
• 4K UHD Blu-ray sets come with two discs: one 1080p disc and one 4K UHD disc. Be sure to use the 4K UHD disc.
• An HDMI 2.0 cable connected to HDMI 1 port

Not all HDMI cables can support 4K UHD resolution or HDR content. What is the difference between HDMI cable versions, and which one do you need?

HDCP 2.2 is a copy protection file format, and all standard Blu-ray discs are protected by HDCP 2.2. For those who want to enjoy a smooth Blu-ray disc viewing experience without any hindrance, all associated disc players, amplifiers, projectors, and HDMI cables should be checked for compatibility with HDCP 2.2 decryption, to ensure the Blu-ray discs can play properly.

Since 4K Netflix files are also protected by HDCP 2.2, meaning that for all the Netflix packages you’ve subscribed to, the audiovisual system, the projector, and the HDMI cables used must be compatible with HDCP 2.2. Also, an internet connection speed of at least 25 megabits per second is strongly recommended for an optimal 4K streaming experience. For 4K 60fps video contents, a 4K 60Hz-compatible HDMI cable is also required. (Please refer to the question “Which HDMI Cables Are Needed for 4K HDR?”). For more information regarding Netflix, please refer to their website.