As today's display technology keeps improving in terms of resolution and color depth, video interface bandwidths must keep pace to meet the transmission demands. This is where Display Stream Compression (DSC) comes in, a widely used image stream compression technology that enables highresolution data to be output at low bandwidths. Much like vacuum storage bags compress their contents' volume to save space, in video compression, the transmitting end encodes and compresses the image data to be transmitted, allowing high-resolution data to be output at low bandwidth. The receiving end then decodes and decompresses the received image data, and thanks to the "visually lossless" compression technology, the restored image data can be displayed on the screen without distortion.

DSC function that complies with international standards

Chroma's display test instruments support DSC version 1.2a as formulated by VESA. The video signal generators come equipped with intuitive and convenient editing software. This includes a real-time test image preview window, as well as a function for adding and editing text onto the compressed test patterns for easy identification. The parameter section includes DSC version settings, Sampling mode (RGB / YCbCr / simple_422 / native_422 / native_420) and other parameters, and allows selection of 8/10/12 BPC (Bits Per Component) and BPP (Bits Per Pixel). Various compression ratios can be set automatically, and users can set the horizontal and vertical slice values with the Slice function, enabling a wide range of formats for comprehensive compression testing.

Test instruments that support a range of DSC interfaces

Chroma provides display panel test solutions for various video transmission interfaces such as DisplayPort, HDMI, USB-C, eDP, and MIPI:

Flat Panel Display Tester

Video Pattern Generator

Chroma's display test solutions are suitable for panel makers, driver IC design, repair centers, PCB substrate test, automated testing equipment vendors, IC aging test, and product verification applications. For more information on our products and solutions, please visit our website and leave your request and contact information, we will be happy to be of service!