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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Help with this protocol - LCTC

I have a 640x200 monochrome display from a HP 200LX palmtop computer. On its PCB I can see two types of ICs: HD66204TFL and HD66205TFL from Hitachi. Here is its schematic (it has 200 px not 240 as in ...
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0answers
56 views

What LCD is this and how to connect it? [on hold]

A friend of mine asked me which LCD is this and how can he connect it? It has 7 chars plus a battery symbol and a few other words.
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1answer
46 views

How to Identify faulty bus pins on LCD?

I've soldered 14 pins on the back of my LCD and connected to an AVR Microcontroller. The LCD powers on correctly and contrast is set correctly but I'm having trouble sending software initialization to ...
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0answers
46 views

VERILOG CODING FOR CHARACTER TO DECIMAL CONVERSION REGARDING [closed]

Can anyone post the verilog coding to convert the LCD CHARACTER to decimal numbers? Because I want to display the decimal value in LCD SPARTAN-3AN to 16*2 (1602zfa) LCD device.
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0answers
27 views

2.4" TFT LCD Shield isn't working on Arduino Mega

Even on ebay's website it is mentioned that I can't use 2.4" TFT LCD Shield display on attach to Arduino Mega. The problem is that I bought this shield by mistake. I want to put this shield onto ...
-3
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0answers
48 views

Arduino SPI TFT module not working - Module TM022HDH26

I have bought SPI TFT module from ebay (Model # : tm022hdh26), and I wired up the module with my Arduino UNO, After uploading Arduino TFT examples, only i can see is blank white screen. Also i must ...
1
vote
1answer
117 views

A black blinking box character on LCD [closed]

We have a machine which is using a timer and the timer has an LCD, a few of the displays, with no reason all of a sudden displays a black box blinking... If I switch off the machine from power switch ...
0
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0answers
64 views

Writing a framebuffered driver for ILI9230 LCD Controller

I'm using STMF32F103VE to control an ILI9320 LCD Controller, the datasheet is here: http://www.gpegint.com/files/library/files/supportpdf/ILI9320.pdf I have problems of copying the framebuffer ...
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2answers
69 views

Why was a transistor used in this circuit for setting the backlight of an LCD display?

The transistor connection was used to set the back-light of an LCD display. Can you explain why a transistor was used and why those resistor values were picked?
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1answer
83 views

If your monitor screen flikkers, what could be generally the causes of this? [closed]

If your monitor screenlight (not data, just the licht behind it) flikkers, say 30 times per second orzo, what could be generally the causes of this flickering of the light generally speaking?
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1answer
163 views

Problems with LCD initialization: 4-bit mode

I have this microcontroler with this LCD(DEM16216) mounted on it which I cannot initialize. Only 4 of the pins are connected, thus it runs in a 4 bit mode (I think?). I found the datasheet for it ...
4
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1answer
70 views

LCD: do black pixels spend energy?

Does displaying black screen (but not turned off), consume less power than a white screen? Or is the screen just blocking light to show a black pixel and not blocking for not showing it? And, if I go ...
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5answers
3k views

Why there are no circular LCDs?

There are some potential uses for round LCDs, for example smart watches. Searching reveals couple news from while ago but I haven't seen any in real use. What is the main reason why these non ...
2
votes
3answers
171 views

Could this white paste be the cause of intermittent power in a Dell LCD board? [closed]

I took apart my Dell 17" to try to repair it. I expected a burned out capacitor or something else obvious but the only thing I found was this white paste touching several components. Could this be the ...
2
votes
1answer
80 views

HD44780 initialization for 4-bit mode?

I have successfully implemented the I2C protocol necessary to communicate with the device, but I am absolutely stumped on the initialization sequence to get it to work. I have tried countless ...
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0answers
49 views

What kind of connector is this?

I opened display from my Dell D600 notebook and found connector like this If I did good count, there is 2x44 pins inside.After some research, I found model of the screen, and it is ...
1
vote
1answer
85 views

16x2 LCD not working with ATmega 8

Below program is written in AVR studio. Connections: PORTD pins 0 to 7 are connected to data lines of LCD i.e. DB0 to DB7 respectively, PORTB.1 connected to RS, PORTB.2 connected to R/W and PORTB.3 ...
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2answers
36 views

Does C-1602A-1YN LCD use the HD44780 controller?

I am new to using PIC microcontrollers and electronics in general. I have been reading a tutorial on how to interface a PIC with a HD44780 compliant LCD. As I have been shopping for a LCD I have been ...
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0answers
95 views

How to connect LCD to breadboard without header pins?

I am trying to connect 16X2 LCD into a breadboard, but I don't have 0.1 male headers. Can I replace the pin headers by inserting wire only the metal part, after removing the rubber covering and solder ...
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0answers
74 views

Controlling an LCD device using serial I2C module

I purchased an LCD/I2C driver pair and have been trying to get the thing to initialize. I am able to communicate with the I2C driver without issue, but getting the correct initialization sequence has ...
0
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0answers
26 views

Driving 2 displays with 1 board (LVDS)

We would like to connect 2 LCD displays with a Cubieboard that has a 2 channel 8 bit LVDS output. The displays have 1 channel 8 bit LVDS interfaces. My question is, is it possible to control the 2 ...
0
votes
1answer
36 views

Measure/Access Information from small device through audio jack (mic)? [closed]

I've got a small device that I have not yet opened. It sends some unknown sequence of voltage and current through a medium for a few seconds thereby calulating and then displaying a result value on a ...
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2answers
64 views

How to work with LCD to display a sequence [closed]

If I want to display a sequence or any character that what are the steps. I have a LCD that is attached with this and I want to know that how can I use this LCD to display my name or number etc. I ...
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2answers
106 views

68 series CPU vs 80 series CPU

I'm reading a lot of LCD driver data sheets at the moment and they often have multiple interfaces (serial, 8-bit, 16-bit, etc...). They are also often also split into two sections "80 series CPU" and ...
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0answers
50 views

Which display technology (for small displays) allows the thinnest bezel around the display area?

Generally speaking, what display technology (e.g. TFT / AMOLED / PMOLED / etc) allows for the smallest construction size with respect to the "bezel" of the display (i.e. the area around the active ...
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0answers
118 views

Does anyone have a datasheet for this Arira LCD?

I emailed the manufacturer but they haven't responded to my email. I received this LCD screen in a grab bag from Jameco. Googled for a while and couldn't find anything related to the pinouts of this ...
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3answers
120 views

Parallel LCD screen to serial? (1 dedicated microcontroller?)

I'm a newb with electronics and was wondering if there's an IC or PCB that could convert a parallel LCD connection to Serial so I can use 2 wires to communicate with the screen using an arduino and ...
0
votes
2answers
126 views

Deleting Single character in LCD

While I have successfully cleared all the lcd display with the help of some guys here by a cheat code (because it doesnt really delete the display)...
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4answers
145 views

Clearing display of lcd

I'm using serial communication to display the the data to my 4x20 lcd display. When I filled up all the lines of course I need to clear it. I've search over the net and found something like ...
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votes
1answer
65 views

Function setting on SPLC780D LCD

I'm drawing a bit of a blank with this. I have a 1602A-1 16x2 LCD screen hooked up to an i2c port expander chip. I'm using the screen in 4 bit mode so I have DB4-7 hooked up to GPIO 0-3 respectively. ...
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vote
1answer
416 views

Arduino pin descriptions

Hello, actually I am very new in electronics. Im using this as a reference in connecting lcd and 4x4 keypad in my my controller ( an arduino clone) Gizduino ATMEGA644 but I'm having a problem ...
1
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1answer
327 views

Where can I find the datasheet for an DGL-0401YG-4EH LCD display

I recently bought a "goodie bag" or whatever it is called with a lot of different displays in the bag. I figured it could be useful someday or just to play around with. However it seems that the ...
2
votes
1answer
227 views

Gizduino atmega644 + Universal keyboard and display terminal(e-term)

Hello I have a clone of arduino which is GizDuino ATMEGA644 and an Universal Keyboard and Display Terminal(e-term). With this images I connected the terminal to the microcontroller, after connecting ...
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0answers
100 views

Signal's Acquisition of XPT2046 : Resistive Touch Screen Controller

I have some question about this controller with my LCD, have tried to search around but I didn't find any answer. Did anybody can explain to me how it work please. I'm working with a STM32 F4 ...
1
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1answer
159 views

Do 9-pin LCD modules have a standard interface?

I bought some text LCD modules without spec sheets or obvious part numbers. They all have a series of connector pins, unlabelled other than a 1 to indicate pin 1. I was able to get the one with a ...
6
votes
1answer
127 views

Why don't wires block out the backlight of LCD/TFT displays?

Every explanation I've seen about how TFT/LCD screens work only talks about one pixel at a time. My question is: how are thousands of pixels and subpixels connected and controlled? I assume that they ...
3
votes
3answers
117 views

Found an old LCD in an old radio, how to test it?

I found this here LCD in an old radio, it has no number or anything on it, so I have no idea where to find a specsheet. Is there any safe way to see how this baby works?
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2answers
183 views

Is the JHD12864E compatible with an Arduino board?

I am using a KS0108 compatible graphic LCD (JHD12864E) and I want to connect it to my Arduino Leonardo board to display some text. I searched using Google and also in the Arduino forum but I didn’t ...
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0answers
108 views

Help identifying this LCD module

I am looking to identify the LCD module pictured below and find a datasheet for it, or otherwise determine the pinout and figure out how to properly drive it. Front The lines of text on the ribbon ...
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0answers
68 views

STMicroelectronics EMIF08-1502M16 ESD Protection and EMI filter output for 16-bit LCD interface

Hello everyone we've designed a circuit which is about an LCD driving on SSD1963 IC with 16-bit interface and it was normally working but we tested the ESD of the product the screen was going halt. ...
2
votes
0answers
163 views

Ardiuno Uno R3 Plus Digital Pins Overused?

I have an Ardiuno Uno R3 Plus with 14 digital pins, but they don't function well. Or maybe they do, but the point is, I think I am overusing them. I have an LCD connected to ports 13-7, 4 LED lights ...
0
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0answers
155 views

MSP430 launchpad LCD problem

I am trying to interface my MSP430G2553 launchpad with an LCD but my characters look weird. I am using http://www.fibidi.com/arduino-lcd-16x2-characters/ with one potentiometer , with changing ports ...
1
vote
1answer
411 views

Is it possible to use msp430 with keyboard + LCD?

I'm trying to do an assignment for my class which requires me to use a keyboard as input through a microcontroller to a LCD screen, nothing fancy , I just need to show that when I press characters on ...
0
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0answers
69 views

Beagleboard-xm: Dual screen capability?

I'm having trouble finding anything about this by Googleing. I have seen LCD expansion boards for the Beagleboard-xm. Can I have two screens, one connected to the HDMI port and one through the ...
2
votes
1answer
57 views

Intercepting signal between uC and LCD driver

I'm trying to intercept the signals between an old Elan uC and a HT-1622 LCD driver using a PIC18F14K50. There are 3 lines that are connected to the IOs of the uC: CS, WR(write clk) and DATA. At first ...
2
votes
3answers
229 views

Arduino Rounding question

I have made a simple thermostat for controlling a 12V heater. The temperature range can be from 0 F to around 190 F. For some reason when the displayed temperature on my LCD goes from 99 to 100 ...
4
votes
1answer
235 views

Controlling a 4.2V LED (LCD backlight) with a microcontroller

I have a PQC1602K-SYL alphanumeric LCD display with a backlight LED. I would like to drive the LED using a microcontroller pin. How can I achieve that? What I have tried According to the data sheet, ...
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0answers
56 views

Solar panel behind a dot matrix screen

I'm wondering if there is any kind of dot matrix screen (LCD, Eink, etc) that doesn't use a backlight (it's ambient-lit like wristwatch LCDs) and has a built-in PV panel behind the screen. I realize ...
3
votes
2answers
86 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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2answers
148 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 ...