This is “R” of sales technology.
We would like to introduce a demo set of 0.1mm class size LEDs, which are mini LEDs that you rarely have the chance to see, so that you can turn them on one by one and check their appearance.
Here is what we made.
Can you see the small white and black square boards lined up on top of the black board lined with switches?
Various LEDs are bonded in the center of this small board.
The current limit uses a constant current diode (CRD) and is a constant current of 15mA (cut out).
The small board is replaceable so that various comparisons can be made.
This is the one that allows you to check the difference in package (size).
From the left, a 3mm bullet-shaped package, 1608 size SMD chip LED, 1005 size SMD chip LED, 0.2mm x 0.3mm mini LED, 0.17mm x 0.315mm mini LED. The ones placed on the white board are lined up, and on the far right, the one with the 0.17 x 0.315 mm mini LED bonded on the black board is inserted.
Here, only mini LEDs of the same size (0.17 x 0.315 mm) are lined up.
R, G, B can be compared side by side.
Here is how it was turned on.
The LED on the white board looks brighter because the board itself becomes a reflector.
On the other hand, the LEDs on the black board are inconspicuous when not lit.
Each has its own characteristics, and even with the same LED, the appearance will change, so you can check them side by side.
The pictures below are enlarged pictures of each.
Actually, we wanted to line up the smallest LED that we could get, 100um x 200um, but the PCB maker couldn't resolve it enough and couldn't install it.
Since the plan was L / S = 3 / 3mil, we were wondering if the recommended land-to-land gap of 80um would be just fine.
Even with the matrix display lighting board that we created earlier, we received a give-up declaration from a PCB manufacturer different from this time, so the point is to make a board for 100um class mini LEDs (if it is an FPC or glass board, it is completely we can make a board without any problem).
Finally, we would like to introduce the difference from the SMD package product.
The finish is not beautiful because I mounted it by hand soldering. .. ..
The top two are 1608 and 1005 SMD types. The land shape is the land recommended by the manufacturer.
Since the land size is a little large, it may be a little disadvantageous for visual comparison.
And the photo below is a 170x315um mini LED. (The magnification has not changed!)
Since the bonding terminals are on the underside of the chip, resist openings are also minimized. Therefore, the presence of the light emitting source can be considerably reduced. A feature of the mini LED is that it is as thin as 100um.
It's a small detail, but this time we made it possible to drive with batteries.
It can be powered by batteries or a USB port. This ensures that when we introduce the demo set to our customers, we won't have to worry about short cables or poor routing.
If you are interested, please contact us using the inquiry form on our website.
We also rent out this demo set.
We are looking forward to hearing from you.