hacking lcd displays supplier

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.

Thus, say you have a 128x64 STN LCD, you might accidentally try to drive it with a 64x64 input signal, and... in most cases I"ve run into it"ll work. The image will be displayed at the left, and the right 64x64 pixels will display whatever garbage was in those registers from power-on/reset (and if you believe the hype, those liquid crystals might get unhappy with DC... but, I"m not sure about that, since the AC waveform is separate from the shift-register loading).

The latter is something I"d been trying to figure out for some time, two displays on a lappy from the single display"s input. I don"t know why, but my brain was stuck this whole time in trying to use the regular input signals, rather than tapping to/from the panels themselves.

Or maybe you dug out a groovy old stencilled LCD from an old lappy with a HD activity indicator, battery indicator, etc. and want to mount it next to the display. Or even a VFD for such things.... oooohhhh....

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.

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.

I"m more of an end-results kind of guy, even knowing the dangers of that characterizing me as a charlatan - but hey, I is what I is. The deal is, I don"t care at what level I"m hacking, as long as it does what I want, and is a) cheap, and b) easy. I"m more goal-oriented than process-interested, if you follow me. If I learn something about the process on the way to my goal (which I invariably do), than that"s groovy, too.

So I think the goal with the TFT LCD is to just do what we"ve being doing with 7-segs, LED matrixes, and LCD text displays, only bigger, better, and (relatively) cheaper. The goal is to be able to display characters or graphics, even just simple ones, using little more than a cheap mcu and the hacked display. Part of the learning process (or learning about the process, if you will), will be figuring out what we can get for the least amount of cash and effort.

I like the VGA CRT digression, because the follow-up could be using a small (like 15") LCD monitor that has a VGA connector. I appreciate that from an engineering stand-point, it"s all topsy-turvy, because you"d be using a digital mcu (like a PIC) to interface a digital monitor (the LCD monitor) via an analog connection (or is the VGA connector pseudo-analog... it could be considered digital if you just wanted to have black and white or a handful of colour options). The way things are going market-wise with monitors, it"s not going to be long before 15" LCD monitors are cheap-as-free. Re-use, Recycle... Hack!

Just because the VGA protocol (that is, coming out of VGA driver card) is 640x480 and a ton of colours, doesn"t mean that we can"t come up with our own PIC driver to connect to the VGA monitor. So we"ll simplify: drop the colours, drop the resolution, maybe even drop the vertical frequency. Still, doesn"t it seem like we ought to be able to drive the monitor with at least the resolution and frequency that some folks have worked out for various, smaller LCD graphical displays?

The digital signage industry has a problem with hacking, and, if you think about it, it makes sense. First, the industry is filled with plenty of digital sign DIY solutions and hardware/software combinations that do not have a focus on security. Secondly, by their nature, digital signs display images and videos in prominent locations. After all, that’s the entire point - digital signs are meant to be seen. This provides a tempting opportunity for hackers to take over a digital sign and display whatever image or video content they want to a large audience.

Sometimes, what is meant to be seen can quickly become the obscene. Once the hacker has gained access to the digital sign, the hacker is often in full control – whatever the digital sign displays is entirely up to the hacker. In this article, we take a look at some of the most notable digital signage hacks in recent news.

You can find all kinds of LCD screens in broken electronics. But it"s often a chore to figure out how they are controlled if you don"t have a working device that can be used to…

Almost all electronics have some sort of human interface, from blinking lights and beeping speakers to seven segment alphanumeric and Liquid Crystal Displays. This Instructable is about salvaging and testing Liquid Crystal Displays, and a couple tricks I know to make salvaging them more successful.

I salvage; components can get expensive, LCDs can run $10.00 and up even SCRs and mosfets can cost over $100.00 so I salvage everything of reusable value as well as recyclable. Scrap metals like copper, gold, silver, and aluminum can bring you money as well.

Liquid Crystal Displays can be found on CD players, Phones, and printers just to mention a few. In this Instructable I will be dissembling an HP combination printer, scanner, fax machine.

This printer display is parallel data input to the circuit board and parallel data input to the COG LCD, I know this by reverse engineering the circuit board and checking the components datasheets.

You can just pull the LCD however finding just the right ribbon socket can be hard, so the only part I need from the circuit board to use this COG LCD else where is the ribbon socket. (Inside the yellow rectangle) I do this by placing my large soldering iron on the back of the circuit board and when the solder melts I lift off the socket.

Using Arduino to test the 16x1 modules and check the functions; I found that the 16x2 code needed to be modified because the IC looked at the 16x1 LCD as two lines and all you see is the first eight segments of the display.

Demonstrates the use a 16x1 LCD display; the LiquidCrystal library works with all LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by the 16-pin interface however these are 16x1 LCD, 14 pin interface.

Demonstrates the use a 16x1 LCD display; the LiquidCrystal library works with all LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by the 16-pin interface however these are 16x1 LCD, 14 pin interface.

Using Arduino to test the 16x1 10 pin modules again I found a few differences; the same code used for the 16x1 14 pin is used for the 10 pin LCD, this is the hookup and code for the 16x1 10 pin LCD.

Demonstrates the use a 16x1 LCD display; the LiquidCrystal library works with all LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually tell them by the 16-pin interface however these are 16x1 LCD, 14 pin interface.

This circuit board came from a compact disk player; I start by tracing out the circuitry and looking up the LCD driver IC. The IC is a PT6533 general purpose LCD driver this part is important and it makes salvaging the LCD easier, other than the backlight LEDs the driver and the LCD are separate from the push button switches. Now I know what I need to cut away from the circuit board to salvage the LCD.

Many of the members at Instructables and our visitors use Arduino and Raspberry Pi for their projects. I connected the new LCD to my Arduino UNO, the LED backlights work but I am still working on the Arduino code to run serial input LCDs.

I have a tm162b9dcwu6 LCD display which I salvaged from a DSC PK5500 control panel. Do you by any chance have the schematic diagram showing the input/output labels? I want to use the display on an Arduino project

I have a couple oF Honeywell alarm Keypad with Function Buttons and I have started hacking them (Buttons, Leds, Piezo). I have questions concerning the LCD.

From photo 2 , you can see that the LCD is without a PCB/controller but only a strip that when press on the PCB"s traces, connect to the MCU directly.

It looks like a copy of the 128x64 graphic LCD, but I don"t know the model of the chip and I don"t know if it works with the communication protocol "spi or i2c" and which of the 7 cables is for power, clock and data.

de una impresora Epson tx235 rescate un lcd muy chico con 20 pines y quisiera reutilizarla en un proyecto de arduino. te dejo las imagenes para que veas la pantalla y me digas si se puede hacer algo con ella. muchas gracias por todo.

I have the exact same LCD, but I am unable to find any referrence or schematics for this particular model. I would like to use it in my arduino project, do you think you can help me with a datasheet for it?

I love to read about people with a passion for salvaging items. I have loads of components I have salvaged and even fixed a few electronic devices which is very satisfying. Most LCDs I salvage are the standard 16x2 which are fairly straightforward but I have one that I am struggling with. It was removed from an Avaya 5410 desk phone and it has a 22 pin interface with 6 buttons on the PCB.

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

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.”

I"m trying to find specifics on the (unmarked) LCD display, its" 3" x 3/4". I found this somewhat idealized schematic here: http://www.hobby-hour.com/electronics/m830b-schematic-diagram.gif. The pin numbers 2-20 and 22-25 seem to match the way the PCB traces are laid if one assumes that pins 2-20 of the 7106 go to pins 2-20 on the LCD. But then I don"t know what"s up with LCD pins labeled 8, 12, 16 which seem to have to do with power.

Apple tasked BOE with making iPhone 13 displays last October, a short-lived deal that ended earlier this month when Apple reportedly caught BOE changing the circuit width of the iPhone 13’s display’s thin-film transistors without Apple’s knowledge. (Did they really think Apple wouldn’t notice?).

This decision could continue to haunt BOE, however, as Apple may take the company off the job of making the OLED display for the iPhone 14 as well. According to The Elec, BOE sent an executive to Apple’s Cupertino headquarters to explain the incident and says it didn’t receive an order to make iPhone 14 displays. Apple is expected to announce the iPhone 14 at an event this fall, but The Elec says production for its display could start as soon as next month.

In place of BOE, The Elec expects Apple to split the 30 million display order between LG Display and Samsung Display, its two primary display providers. Samsung will likely produce the 6.1 and 6.7-inch displays for the upcoming iPhone 14 Pro, while LG is set to make the 6.7-inch display for the iPhone 14 Pro Max.

According to MacRumors, BOE previously only manufactured screens for refurbished iPhones. Apple later hired the company to supply OLED displays for the new iPhone 12 in 2020, but its first batch of panels failed to pass Apple’s rigorous quality control tests. Since the beginning of this year, BOE’s output has also been affected by a display driver chip shortage.