LED Display (TJ)

LED Display (TJ) is a big, styled readout node for the values you're tired of squinting at. Seed numbers, current loop index, a counter, a filename - the stuff that changes every run and that you want visible at a glance rather than buried in a small widget. It renders your value in LED-marquee style on the canvas, with size and colors you control, and it does exactly one other thing: passes the value through untouched.

How it works

You can give it static text, or you can connect the wildcard value input - INT, FLOAT, or STRING - and that becomes what's displayed (it overrides the text widget when connected). The label widget is a small caption that shows at the top-left of the panel, which is handy when you have several displays and need to remember which is which. font_size, text_color, and bg_color are all tunable; the default color scheme (bright green on near-black) is a deliberate nod to a real LED sign, but you can go amber or red or whatever matches your workflow aesthetic. The tooltip hints that dragging the slider changes font size live.

The one functional output is value, which echoes the input back out - same type, unchanged. That's the useful part: you can insert the node inline in a chain (say, on the seed wire before it hits the sampler) and get the readout without breaking the data flow. It's a monitor, not a transformer.

Inputs and outputs that matter

• text - static text shown when value isn't connected.
• value - the live value to display (INT / FLOAT / STRING, any of them).
• label - small caption.
• font_size, text_color, bg_color - the look.
• value (output) - passthrough of the input value.

Install

ComfyUI Manager → Install Custom Nodes → search TJ_NODE, or:

cd ComfyUI/custom_nodes
git clone https://github.com/designloves2/ComfyUI-TJ_NODE

Restart ComfyUI. Nothing to download. Category: ✨ TJ_Node/Utility.

The honest review

This is a quality-of-life node, the kind that's easy to dismiss and quietly useful once you've been bitten. If you run seed sweeps or queue loops, being able to see the current seed/index without opening the widget is genuinely nice. The passthrough means it slots into an existing wire with zero restructuring. It won't save you from a bad workflow - no node will - but for monitoring runs at a glance, it's the simplest thing in the pack that does exactly what it says. If you want the same idea with more introspection (type detection, JSON inspection, copy button), the pack's Smart Show is the heavyweight version; LED Display is the one you drop in when you just want to see the number.