Large-scale art and architectural light shows are becoming increasingly popular at events like New Year celebrations, Christmas festivals, sports events, national holidays, and lantern festivals. These grand displays not only involve 3D building projections, but also interactive motion-sensing, multi-user touch projections, and various dynamic effects, made possible by state-of-the-art outdoor projectors. To accommodate uneven projection surfaces and massive sculptural projections, leading manufacturers have been developing projectors featuring ever higher resolutions, brightness, and stability, as well as projection blending, 3D capabilities, and more. Such feature-packed projectors require rigorous testing both on the production line and at the end-product stage. The Chroma 2238 Video Pattern Generator provides just the solution. Fitted with the Chroma A223801 DisplayPort Signal Module, Chroma 2238 offers a full suite of applications to meet all the test requirements of high-end projectors.  

Unleashing the Potential of 8K Projection

The Chroma A223801 DisplayPort Signal Module supports 8K UHD (Ultra High Definition) image output, making it ideal for high-resolution 8K@60Hz testing. With a maximum transmission rate of 8.1 Gbps (HBR3) as defined by DisplayPort 1.4, the module also features a two-port split-screen mode (Figure 1). Leveraging the Chroma 2238's high-speed synchronization capability, two A223801 modules can be used to achieve a transmission rate of 5.4 Gbps (HBR2) across four ports with two different testing modes: Sample Interleave (Figure 2) and Square Division (Figure 3). This functionality enables the test program to incorporate seamless splicing for extra-large projections. 

Figure 1. 2-Port Vertical Splicing Mode

Figure 2. 4-Port Sample Interleave Mode

Figure 3. 4-Port Square Division Mode

Advanced HDR Image Testing Technology: Reproducing Lifelike Images

HDR (High Dynamic Range) technology significantly enhances brightness range and color depth, creating visuals that closely resemble what the human eye perceives as reality. To test various aspects such as brightness, contrast, color, sharpness, and dynamic images in HDR output, the Chroma A223801 DisplayPort Signal Module allows users to freely adjust HDR metadata for relevant testing. Additionally, it supports a maximum 12-bit color depth and a broad range of color spaces, including Wide Gamut RGB, ITU-R BT.601, ITU-R BT.709, ITU-R BT.2020, and DCI-P3. These features together produce image quality that is remarkably true to life.

Paired with the A223801 DisplayPort Signal Module, the Chroma 2238 Video Pattern Generator additionally supports HDCP 2.3/2.2/1.3 and MST (Multi-Stream Transport) testing. For testing high-end professional projectors, Chroma offers modules for HDMI 2.1a 4K@165 Auto Low-Latency Mode, 12G-SDI 8K, and other interfaces. Lastly, our comprehensive signal and optical test offering also includes the Chroma 7600A Front Projector Automated Test System, which excels at fully automated and highly accurate compliance testing to ANSI-1997, JBMIA, IEC&SJ/T, and other projector test standards. For more information, please browse our website and leave your inquiry and contact information. We will be happy to be of service!