10+ Differences Between LCD vs. LED - ips monitor vs led

This DIY lasertag project designed by [Nii], which he brought to Tokyo Maker Faire back in September, is a treasure trove. It’s all in Japanese and you’ll need to visit X (formerly Twitter) to see it, but the images do a fine job of getting the essentials across and your favorite translator tool will do a fair job of the rest.

If you can’t find your own transparent displays, spinning things are a popular trend in this area. We just saw one last week that spun an LED matrix to form cylindrical display. Another favorite of ours is a volumetric display that spins a helix-shaped projection screen.

Aside from being a Dell monitor provided by WCER, if you see any USB ports on the back , side, or near the other ports of the monitor, it can be used as a USB hub (with the proper cable connected).

As for the choice of transparent OLED displays? They are certainly cool, and we remember how wild it looks to have several stacked together.

This module with I2C interface has reduced this number to 2 pins. A potentiometer is also included to adjust the display contrast.

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Want to know more? Check out [Nii]’s earlier prototypes on his website. It’s clear this has been in the works for a while, so if you like seeing how a project develops, you’re in for a treat.

For reasons that are probably obvious, [Kevin] considers the Arduglasses an experiment and isn’t looking to turn them into a commercial product or kit. But if there’s interest, he’s willing to put the design files up on GitHub for anyone who wants to add a pair of Arduino glasses to their cyberpunk wardrobe.

The key to this project is a pair of transparent CrystalFonts OLED displays, just like the ones [Sean Hodgins] recently used to produce his gorgeous volumetric display. In fact, [Kevin] says it was his success with these displays that inspired him to pursue his own project. With some clever PCB design, he came up with some boards that could be manufactured by OSH Park and put together with jewelry box hinges. Small flexible circuits, also from OSH Park, link the boards and allow the frames to fold up when not being worn.

[Sean Hodgins] is out with his latest video and it’s a piece of art in itself. Beyond a traditional project show and tell, he’s spun together a cyberpunk vibe to premiere the volumetric display he built from an OLED stackup. Update: He’s also documented the build.

The Arduglasses use the same ATmega32U4 microcontroller as the Arduboy, and with a few basic controls and a small 100 mAh rechargeable battery onboard, they can technically run anything from the open source handheld’s extensive software library. Of course, technically is the operative word here. While the hardware is capable of playing the games, [Kevin] reports that the OLED displays are too close to the wearer’s eyes to actually focus on them. That said the ability to easily create software for these glasses offers plenty of opportunity for memes, as we see in the video below.

There’s a whole lot to admire in this project. The swing-out transparent OLED display is super slick, the electronics are housed on a single PCB, the back half of the grip is in fact a portable USB power bank that slots directly in to provide power, and there’s a really smart use of a short RGB LED strip for effects.

The optical elements show some inspired design, as well. An infrared LED points forward, and with the help of a lens, focuses the beam tightly enough to make aiming meaningful. For detecting hits, the top of the pistol conceals a custom-made reflector that directs any IR downward into a receiver, making it omnidirectional in terms of hit sensing but only needing a single sensor.

To use the USB ports on the monitor, you just need to connect a USB Type-A to USB Type-B USB cable from your dock (or computer) to the upstream USB port of the monitor. When you do this, the monitor will activate the other downstream USB ports on the monitor which you can then connect to USB devices to use with your computer.

One of the major advantages of OLED over LCD panels is that the former can be made using far fewer layers as the pixels themselves are emitting the light instead of manipulating the light from a backlight. This led some to ask the question of whether it’s possible to make an OLED panel that is transparent or at least translucent. As Xiaomi’s new Mi TV LUX OLED Transparent Edition shows, the answer there is a resounding ‘yes’. Better yet, for a low-low price of about $7,200 you can own one of these 55″ marvels.

Tiny OLED displays are an absolute must-have in the modern parts bin, so what better way to show your allegiance to the maker movement than with a pair of Arduino-compatible OLED glasses? Created by Arduboy mastermind [Kevin Bates], these digital spectacles might not help you see any better — in fact, you’ll see a bit worse — but they’ll certainly make you stand out in the crowd at the next hacker con. (Whenever we can have one of those again, anyway.)

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As it turns out, merely removing the opaque backing from an OLED panel isn’t enough to make it transparent. In order for an OLED panel to become transparent, the circuitry in the pixel layer and TFT layer need to be aligned as best as possible to allow for many, many tiny holes to be punched through the display.

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Looking at [Linus]’s experiences with the LG prototype, it does appear that this kind of technology would be highly suitable for signage purposes, while also allowing for something like an invisible television or display in a room that could be placed in front of a painting or other decoration. Once displaying an image, the screen is bright enough that you can comfortably make out the image. Just don’t put any bright lights behind the TV.

All Dell monitors purchased by WCER allow you to connect additional USB peripheral devices (like a keyboard, mouse, external drive, etc.) to your computer. This provides the benefits of allowing more USB devices on your computer, as well as freeing up the more convenient USB ports on either your computer or dock.

There is a limit to how sharp and how quickly displayed an image can be before the user will no longer notice improvement.

Transparent OLED technology is not new, of course. Back in 2018 LG was showing off a prototype TV that used one of the early transparent OLED panels. In the video that is embedded after the break, [Linus] from Linus Tech Tips goes hands-on with that LG prototype while at LG in South Korea, while including a number of crucial details from an interview from one of the engineers behind that panel.

The trick of a volumetric display is the ability to add a third dimension for positioning pixels. Here [Sean] delivered that ability with a stack up of ten screens to add a depth element. This is not such an easy trick. These small OLED displays are all over the place but they share a common element: a dark background over which the pixels appear. [Sean] has gotten his hands on some transparent OLED panels and with some Duck-Duck-Go-Fu we think it’s probably a Crystalfontz 128×56 display. Why is it we don’t see more of these? Anyone know if it’s possible to remove the backing from other OLED displays to get here. (Let us know in the comments.)

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The image below shows the ends of a USB Type-A to USB Type-B cable. The USB Type-B end is the squared-up connection and is the input to the monitor. The other end is USB Type-A, and needs to be connected to the dock’s USB port (or directly to the computer if there is no dock).

The rest of the built is fairly straight-forward with a Feather M4 board driving the ten screens via SPI, and an MPU-6050 IMU for motion input. The form factor lends an aesthetic of an augmented reality device and the production approach for the video puts this in a Bladerunner or Johnny Mnemonic universe. Kudos for expanding the awesome of the build with an implied backstory!

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Once you have the upstream cable connected, the monitor is now a USB hub and will activate its USB ports. It will draw its power from the computer connection. Any USB connecting device would work in it, as long as it stays within the power specs.