G904 User Guide Document: G904-2
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Introduction
G904 is multi-function signal processor with 8k/2k 30Hz, 4k/60Hz input and 4k/60Hz output. Each box
can display all-in-one content across entire video wall as well as display discrete true 4k/60 content in each 4k
monitor. Due to special system design, it is also served as multi-viewer to display up to 7 contents in one UHD
monitor. Multiple units can be cascaded to build big scale display system.
One G904 has four 4k/60 output channels. Each channel has 3x HDMI 2.0 inputs (one port is shared
with another channel) and 1x HDMI 2.0 outputs. Input supports up to 4096*2160 @60Hz, 7680*2160 @30Hz
with 4:4:4 chroma sampling. Two HDMI 2.0 loop out ports provide daisy chain connection for multiple unit
cascade in large scale display system.
Programmable output supports up to 4096*2400 @60Hz output resolution in each channel. The range
is from 800-4096 (with 8 Px/step under 230Mhz, 16 Px/step above 230MHz) in horizontal and 720-3840 (with
1 pixel/step) in vertical. The maximum resolution is limited to H * V < 9,830,400. Various input sources and
input timings are supported, including non-VESA standard input timings.
It is integrated with 10-bit high end processor, motion adaptive de-interlace, low angle smooth
algorithm, 3:2/2:2 pull-down cadence. Programmable EDID enables optimized input timing to get the best
video performance.
It can execute color adjustment in Brightness, Contrast, Hue, Saturation, Sharpness, color temperature
and discrete RGB gain adjustment.
Automatically detect and process HDR BT. 2020 input signal and output
with full color 4:4:4 RGB SDR signal.
User can select deep color mode with true 10-bit color output to get
smooth gradient color.
Video wall function in G904 can crop specific location & resolution in source image for each output
channel. Overlap function allows user to change image position, aspect ratio and cropping area up to +_1800
pixels in each edge. User can adjust aspect ratio and image position freely. Independent image 90/180/270
degrees flip and rotation are also available in each channel. User can build creative video wall with any LCD
array at landscape and portrait directions.
PIP (picture in picture) and POP (side by side or top/bottom) is standard functions in each output
channel. PIP image can be from 4k/60 source with PIP image size from 320*180 up to 1920x1200. It can be
located at any location in one screen. Both main and sub-images can be flipped and rotated at 90/180/270
degrees and quick seamless swap. The cropping range and position in both main and sub-image are
adjustable. Maximum display windows in the video wall with 4 monitors is ten.
Through the combination of PIP/POP, G904 can serve as multi-viewer to display up to 7 images in one
monitor (6 split views + one PIP). MultiViewer with 3/4 split views and 6 split views in one UHD monitor at
portrait or landscape directions are standard applications in G904.
User can use IR controller, USB, Web Gui and Ethernet for system operation and setup. It is designed
to work in 7/24 working environment and provides easy configuration, low entry barrier, cost effective, reliable
and flexible solution.
