hacking lcd displays for sale

Hackaday’s own [Arsenijs Picugins] has been rather busy hacking old laptops apart and learning what can and cannot be easily reused, and presents for the 2021 Hackaday Remoticon, a heavily meme-loaded presentation with some very practical advice.

What parts inside a dead laptop are worth keeping? Aside from removable items like RAM stick and hard drives, the most obvious first target is the LCD panel. These are surprisingly easy to use, with driver boards available on the usual marketplaces, so long as you make sure to check the exact model number of your panel is supported.

This awesome and easy hack came to me from Instructables member dimovi. Basically, you take a LCD monitor apart and extract its polarized film. The film then goes into a pair of old glasses and voilà, you have a privacy monitor that looks normal with your snazzy new glasses and blank to everyone else.

The transparent display we offer for sale (CFAL12856A0-0151) is an OLED (Organic Light Emitting Diode) display. OLED displays produce images by emitting light in the corresponding color. To produce black in a normal OLED, the pixels are simply turned off. With the transparent display, if the pixels are turned off, the display is transparent rather than black.

We’ve heard from a few customers requests for transparent displays with black graphics as well as requests for larger transparent displays. This guide will walk you through creating a transparent display out of a graphic LCD.

It"s pretty easy to do and only requires basic tools like scissors and an X-Acto knife. You can order the polarized filter online and just use an old LCD monitor you have lying around.

Multimedia and graphics analysis and consulting firm Jon Peddie Research has been conducting multi-monitor productivity research since 2002. In their most recent study, evaluating 1,000 end users" productivity patterns, the company found that "information workers, designers, and engineers can realize up to a 42% increase in productivity through the use of multiple displays."

Luckily, all the digital devices in his 2012 Hyundai Genesis Coupe were connected using a fairly common standard — the “Controller Area Network bus” (or CAN bus). So Harin grabbed one of his Arduino’s — plus a cheap SPI CANBUS circuit board — and just started doing some experiments. When he first installed his Arduino circuit board into the dashboard, the LCD began showing the time of day — every ten milliseconds — and any new messages that he sent to the screen were simply being wiped out when the system re-transmitted. But Harin had already built up a strong motivation to keep moving forward, according to a recent write-up in Make: magazine, because “I hated that stupid little blue LCD. It would just sit there staring at me brightly with the words ‘AUX’…”

So he re-routed the LCD’s input. And fortunately, Harin’s other Raspberry Pi board could accommodate a WiFi dongle. By using an iPhone for connectivity, it was now able to draw down the funny Reddit quotes. And Make: also reported that his next project may be to install a router directly into his car.

Harin’s even mounted his Nexus 7 Android tablet into his car’s dashboard and is using it to play music. In the comments on his blog, he talks about one day transmitting the “now playing” information from the tablet to the LCD. Somewhere in the mix, there’s even an SQL database. “My main script retrieves the top post from Shower Thoughts and converts the characters to their hexadecimal equivalents, adds the message ID and row identifier, and stores it in an SQL database.”

There’re two more scripts just for retrieving the quote from the database and display it on the screen, which Harin says will be building blocks for more features down the road. “Eventually, I’ll be able to screen the messages intended for the LCD on the primary [CAN bus] network and add the ones I want to keep to the SQL database while removing the ones I don’t need anymore.”

As you probably know, bistable or passive displays like the E-Ink ones in e-readers focus on battery life and readability rather than color and interactivity. The latest devices have been optimized for fast page refreshes and touch operation, but generally you’re still waiting a half a second or so for the screen to flip over to the next page, menu, or what have you.

The possibilities for this generation of readers are limited: few people are going to install a hack like this, and even if they did, not much content is really designed to be consumed this way. Pages are a natural way to read books, and scrolling constantly is kind of a pain. But it’s amazing to see these displays, usually so slow and static, being used so actively. Here’s hoping the next displays from E-Ink (or Bridgestone, or whoever) are capable of even more. Despite what people might say, the passive display still has a lot of potential to grow and evolve.

they are typically much lower resolution than you may be used to on laptop computers, but the net package LCD+microcontroller is much smaller and runs off batteries for much longer than the above approaches.

Most LCD monitors have two films on the glass - a polarized one to filter out the light you are not supposed to see, and a frosted anti-glare film. The anti-glare film we don"t need, the polarized one we do - it is used for the glasses.

Print a full screenshot of the spreadsheet and taskbar onto a piece of thin, clear plastic. Convince people you can only see well with black and white, so you can make it a real high contrast print. But make sure any lines are thin. Apply this to the LCD, taking care to remove bubbles. Tehn jsut get uesd to seneig waht it looks lkie knid of srecwed up. The brain is amazing at adapting, and there is a good chance you read the last sentence naturally. Look again ^^.0

By googling for hackable devices I found an interesting software hack that allow you to use a digital photo frame based on a Sintronix st2205u chipset as a usb LCD screen (1,5 inch, 128*128 pixels, with colors).

After changing the firmware it is possible to run lcd4linux : a program that displays information about computer system, or to run mplayer and display video on the DPF. It is even possible to use the DPF as linux terminal (with a computer and a keyboard of course).

There are many modded cases which had had simple LCD or VFD displays fitted to add an element of "coolness". These displays are generally somewhat limited in their capabilities and often consist of just a few lines of alphanumeric characters. Now you can go that extra mile and take "coolness" into the "chilly" realms by fitting a "real" graphic LCD display just like the one on your desktop, only smaller. I am talking about the add-on LCD screen for the Sony PSone Playstation games console. This display has a viewable area of approximately 5 inches, has a resolution of 640 x 480 and is a gift to modders everywhere. Here are a few features of this unit..."

The SoC GPU does have a DSI interface, and is used in many mobile phones world wide to drive the LCD. However, each LCD requires a new driver on the GPU, along with (often) very specific cabling etc. The DSI interface is available on the prototype, but I don"t think will be there on the Raspi Pi release board as no-one would be able to use it anyway as it would require recompiles of the binary blob. Also DSI is getting a bit old hat now.

But I still have a curious problem : on this ARM device the program lcd4linux display curious letters, as if it was an encoding (I mean like utf8 , in french we say "encodage", I hope it"s the good word) problem...

Pretty easy tbh if you don"t mind soldering a few things, just hook it up to the composite port of the RPi. There are hundreds of how-to"s explaining how to do composite->vga adaptors and you can easily find the psone lcd schematics.

Hey, a little cheap usb lcd screen would be great. You could use the little screen when using the device without a tv, and then plug it in to a tv when you get to one, but still have the lcd attached and working. It would be like a dual screened device.