Questions tagged [lcd]

Short for Liquid Crystal Display. LCDs consume little power, and exist in graphic LCDs, or segmented. The latter type is used for character and 7-segment digit display, and also in custom LCDs for consumer electronics.

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120 views

What is the term for an LCD readout that is, by design, still visible after power-off?

I am looking to build an electronic device that has an LCD panel on it with a feature I noticed my Western Digital MyBook external hard drive has which is the ability to display data and it stays ...
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453 views

What is TFT driver SSD1963 data voltage

I recently bought a TFT module driven by SSD1963 I have experience on t6963 and ks0108 and by a quick look it seems ok to make a MCU interface to ATMega128. What is confusing to me is the difference ...
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190 views

Resistive Touchscreen Stands in Midway of the ADC in standby

In a resistive touchscreen I am trying to read x-y position. The schematics is as followed. The code works fine and when I press a point, it reads correct position well but the problem is in standby ( ...
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LCD display reverse engineering

I recently got in my hand an old phone lcd display. Display itself seems to be useful so I took apart it from the rest, and I begun to test its behaviour. Display is named SHARP LM167511 and its ...
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3answers
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How to interface with LCD display - HYeLCD, HC20216NYU

I am trying to drive a small (20x2) LCD screen from a Parallax Propeller board/chip. Can't find a decent manual anywhere. This is the LCD: http://www.jameco.com/1/1/24982-hc20216nyu-lyvo-20-2-black-...
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2answers
702 views

TFT LCD tutorial?

I am not sure if it is a good question or not, but I want to start working on TFT LCDs. I have good experience both on T6963 and KS0108, dot matrices, but zero experience on TFTs. Can anyone give any ...
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1answer
469 views

t6963 GLCD very low contrast

I am trying to setup a 240x128 GLCD with t6963c driver (datasheet). I am familiar with ks0108 drivers but newbie in t6963. I have written a simple code with only lcd-init() that I expect to see the ...
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2answers
3k views

Just burned my first LCD… but why?

I just attempted my first project with an LCD, and it did not go well. I am hoping to get some advice on how to prevent this from happening to my next LCD. On the first night everything seemed to ...
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1answer
82 views

How to use touch screen shield for GLCD?

I know this is a very elementary question. I was wondering if it is possible to use a touch screen shield on a normal GLCD to change it into a touch-GLCD. I have seen a product which is a transparent ...
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1answer
364 views

Problem with LCD 128x240 pinout

Recently I bought a 128x240 LCD with ts6963c driver chip. The part number is TS240128D-1. I am familiar with KS0108 driver but the problem is different pinouts. I found a good manual in a book for ...
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1answer
220 views

How can I use an old LCD screen? How can I determine each pin? [closed]

I took apart a broken iHome ip90. I now have the lcd screen, but I want to figure out how to use it in a project or something. I am used to getting nice instructions and tutorials, but obviously it's ...
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1answer
98 views

LCD that can be controlled via serial? [closed]

I am very new to hobby electronics, but I was hoping I could find a way to get an LCD (preferably a backlit monochrome LCD with a grid of pixels -- something like this) that I could somehow mount in ...
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1answer
2k views

LCD screen gets hot and sucks power from Raspberry Pi

Has anyone else experienced LCD screens overheating, and drawing too much current? I was trying a GPIO project with my Raspberry Pi in an attempt to interface with an LCD screen but for some reason my ...
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2answers
408 views

Looking for datasheet for SHARP LS030Y3DX01 Display

I am looking for the datasheet for the LS030Y3DX01 LCD display from Sharp. The display is a 3 inches with the resolution 480x800 pixels. The only thing I have found is on this web site that ...
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2answers
561 views

What type of LCD backlight does this screen have?

We are in the very early stages of developing a new product and are attempting to identify the type of LCD screen backlight we want to use. We are using a regular segment LCD glass screen, the type ...
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1answer
1k views

Interfacing with an LCD screen

I have managed to salvage the LCD screen from an old Tom-Tom (the model number of the screen is LTE430WQ-F0B-0BS). It comes with a driver for the screen on the back, but it doesn't look humanly ...
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1answer
411 views

MM5452 with 4 digit parallel 7-segment LCD display

I have a question regarding the backplane connection for the MM5452. From this data sheet: MM5452/MM5453 Liquid Crystal Display Drivers It says that the backplane pins on the MM5452 connects to a ...
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SPI device prevents ISP programming

I have an ATmega8 with a Nokia LCD 5510 connected to it. Everything works great on a breadboard and my next step is to move it to a more permanent board. My problem is that I can't program the ATmega8 ...
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2answers
389 views

A good TFT LCD for a project [closed]

I am starting a project and I need a colour screen preferably clear to shuffle through images (think of it as the digital photo frames). However, I need something bigger than the usual screens, maybe ...
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1answer
341 views

Is it safe to unplug power, from a working LCD monitor?

I've built a system using a pressure sensor on my chair, which in-turn controls a switching-relay such that when I get up from this chair, power to all my LCD screens is switched-off by the relays, ...
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3answers
1k views

PIC : Problem with LCD Initialization

As we are developing our application based on the PIC18F66K22. We need to interface LCD with it. We have the LCD working with it but the problem that we are getting is that the LCD initialization ...
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3answers
605 views

Can anyone identify this LCD Display

How do I go about identifying an LCD display module so I can get a data sheet? 16 Pins to one side in 2 rows of 8. printed on PCB: hy-211 printed on PCB: v0022201 rev.b printed on a sticker on side:...
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1answer
135k views

Differences between OLED, LED, LCD, and TFT Screens

I have heard about these different types of screens on DIY websites and in consumer electronics. What are the differences in these types of screens and what are their advantages and disadvantages?
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ILI9163C : LCD showing garbage after initialization

I am using a LCD having ILI9163C as LCD controller with pic18f66k22 with 8-bit parallel data interface. The problem that I am getting is that after initializing the LCD it shows the garbage instead of ...
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1answer
221 views

How Are Pixels Sent To The Screen?

So, today I started to wounder how pixels are stored, then push though the graphical bus. I have not really done much with LCD or touch screens. I do know from my programming background they are ...
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3answers
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Is this a common LCD display? [closed]

I'd like to know if this LCD display is a common one like the HD44780. Sadly there is no model number on it, only the brand(?) "onv" or maybe it should be "auo" when you read it upside down. It's part ...
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0answers
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16 x 2 LCD not displaying analog inputs fed to ATmega168

I am experiencing some problems getting a display of analog inputs(current and voltage) fed to ATmega168's A0 and A1 respectively. I believe the wiring and the program are correct since the same ...
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2answers
478 views

Getting rid of ripple from an LCD backlight

I have built a circuit which contains an integrated power supply stepping down mains voltage to 5v through a transformer, rectifier circuit and a voltage regulator. With a couple of smoothing caps the ...
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1answer
1k views

DFRobot LCD shield minimum pin connections

I am connecting a DFRobot LCD shield (http://www.dfrobot.com/index.php?route=product/product&product_id=51#.UYWE0itxsVk) to a bareduino. There will be no shield placed on top of the LCD and am ...
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2answers
4k views

MPLAB XC8 vs MikroC problem

I have been trying to write a program for LCD on PIC18f452. I found a library and worked on it and MPLAB XC8 compiled it successfully. I tested it in ISIS and it ...
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1answer
13k views

TFT LCD interface with a Microcontroller: Getting Started

I have a small 3.5 in TFT LCD display from a Chinese manufacturer. It doesn't have an integrated LCD controller. The documentation claims it is a "16 bit RGB/parallel interface" and it uses a Renesas ...
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3answers
3k views

TFT LCD pixel clock filtering

I would like to know how to filter the pixel clock in order to reduce emitted radiations. Block diagram The LCD controller is part of a motherboard. A board, connected at the other side of the FFC ...
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1answer
3k views

HDMI/VGA/NTSC/PAL to 24-bit parallel RGB interface [closed]

Adafruit.com is selling TFT-LCD modules that comes with an NTSC/PAL driver board. The product specification page includes a link to the original manufacturer´s datasheet/specifications for the TFT ...
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2answers
741 views

Interfacing a 16x2 Character LCD to the Arduino

A friend recently gave me a set of three (old) 16x2 LCD displays. (datasheet) However, I'm having difficulty thinking through how to connect one to my Arduino. Particularly, each LCD has 14 (!) ...
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1answer
123 views

How to flash error if a macro is not defined in program

I want my program to flash compile time error like "LCD_PORT not defined" if it is not defined in program itself. For that I modified the header file like this ...
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1answer
880 views

24-bit parallel TFT module on circuit designed for 16-bit parallel

I've designed a circuit that connects a 16-bit parallel LCD TFT module to the SPI-connector on a RPi, but bigger TFT modules often have 24-bit parallel. Can I use a 24-bit parallel TFT with my circuit ...
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4answers
714 views

Do graphical/pixel mapped LCDs need a screensaver?

Will displaying the same for a very long time on a graphical or pixel mapped LCD harm the display in any way? If so, what would be a maximum time to display the same, or how could I determine that ...
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1answer
589 views

A small, thin LCD for my device [closed]

I've been looking for a good display for the handheld device that I'm building and I've liked the various HD44780-based displays that I've tried. (like for example this one: https://www.sparkfun.com/...
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1answer
426 views

What makes a display visible in daylight (such as the Pixel Qi)?

What characteristics of the Pixel Qi display make it visible under daylight conditions? It seems to have something to do with "daylight grayscale". But what exactly does "daylight grayscale" mean? ...
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1answer
4k views

Can I use a voltage divider circuit instead of a level shifter here?

I am trying to hook up an LCD module to my microcontroller, and was following this tutorial. Notice that the three signal wires all go through a level shifter, which drops the voltage from 5V to the ...
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0answers
957 views

OLED Custom Character not being displayed correctly on Arduino Uno? Too Many?

So I have a bunch of custom characters and they are created like this ...
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1answer
133 views

Simplest device for mini operating system

I have been developing an operating system off of this video and I want to begin building a device to support this os. All it really does is print to the screen. I want to build a small device with an ...
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2answers
4k views

PIC16F877A (with LCD) not working

I have designed a PIC18F877A micro controller project to read temperature from an LM35 using ADC, display it on an LCD and transmit it to a serial port. When the program starts, sometimes it shows a ...
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2answers
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Applescript to Arduino LCD only works with Serial Monitor

I spent all day trying to figure this out and finally got somewhere that atleast lets me know that I am doing something weird... I am trying to send data to my LCD Screen on my Arduino Uno, but for ...
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1answer
924 views

Using touchscreen cellphone lcd module for custom projects

I intend to use the capacitive touch based lcd modules of cellphones in custom embedded projects, I will be using this display with low cost stm32 boards. Has anybody experimented with this approach ?...
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1answer
674 views

Voltage Level Translation: LCD(5V) -> GTL2000 <-> MCU (3.3V)

I am trying to interface a micro-controller (LPC11C14) to a LCD. The LCD has Vih = 3.5V so I cannot directly connect the uC pin to the LCD. For this, I found a GTL2000 chip which looks like it might ...
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939 views

Arduino 3 digit LCD calculator

We would like to build a calculator using Arduino which uses 3 digit LCD and a keypad similar to digital phones. (# for plus , * for minus) Which components and way is good enough to not to run out of ...
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1answer
1k views

Monochrome LCD sources [closed]

I'm planning on doing a one-off project that will need a monochrome LCD 3-4 inches wide. Unfortunately, I haven't had much luck finding what I need. Smaller screens like those salvaged from cell ...
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2answers
759 views

7 segment LCD works on breadboard, not on stripboard

I am using a 7 segment 3 1/2 digits "raw" LCD (like this one) using 4 CD4543 controllers and a MSP430. I use one of MSP430's pins to create a 30Hz square wave that I feed into CD4543's phase input. ...
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2answers
301 views

Best practicce to refresh data on LCD

I am currently reading value from ADC and displaying on LCD screen. The ADC is supported by DMA. Now my system has 5 menus seen on LCD (Voltage, Current, Resistance, Settings). 3 of them should ...