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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1answer
53 views

What's happening when an LCD is initialized?

It seems that the function set command is repeated multiple times, with differing delays. Why can't it be a single function set command with all the delays combined? What is characteristically special ...
0
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1answer
42 views

bluetooth headset with LCD and memory

I was wondering if it is possible to create a bluetooth device which would have a LCD screen and some memory (1kb) for making and receiving calls. From my research ( and I am far from an EE, but ...
0
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0answers
23 views

How to interface SED 1335 F0A LCD controller to LPC 2148?

I'm trying to interface a 320x240 Text/Graphics LCD module to an ARM microcontroller-LPC 2148. The LCD controller is SED 1335 F0A by EPSON. The LPC 2148 is mounted on a Keil Evaluation Board-MCB 2140. ...
-1
votes
2answers
60 views

serial to parallel lcd converter

Im looking for some information on a serial to parallel lcd converter. Im trying to retro fit a 240x64 led lcd with a 8 bit paralell in a machine with serial pixilated data. I have been searching ...
0
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2answers
40 views

Need help finding datasheet for Mitsubishi Electric AA11SB6C-ADFD TFT

Searching datasheet for Mitsubishi Electric AA11SB6C-ADFD LCD display. This LCD is discontinued product, no information on official site. Already tried sites like datasheetarchive, alldatasheet. Still ...
1
vote
1answer
42 views

Arduino TC1602 no display but backlight

I am using an Arduino Uno and TC1602 LCD display to write from MCU to the module. I have checked the wire connection for a lot of times, but still only backlight no text. So I am wondering whether ...
2
votes
2answers
110 views

Program memory question (working dispite insufficient memory)

I am writing this program to a Microchip PIC. ...
2
votes
3answers
146 views

BJT switch vs amplifier mode

I'm getting really confused about a specific BJT circuit. I want to control LCD brightness and contrast as suggested here. Apprently a capacitor is used to filter PWM output to the contrast pin, ...
0
votes
1answer
58 views

LCD brightness and contrast control with PWM

Is it reasonable to control LCD brightness and contrast directly with the PWM pins of an Arduino, or would it be advisable to use a capacitor/filter to get a constant analog voltage? I assume human ...
0
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0answers
82 views

How to connect smartphone LCD to HDMI (how to make controller)

I need very small HDMI display. I saw HDMIPi - 9 inch is too big for me, if that display was 5-7 inch - it would be perfect for me. There are 7 inch HDMI displays for cameras, but they are big, ...
2
votes
1answer
83 views

Good idea to control LCD contrast using a microcontroller?

In a commercial product, would it be a good idea to control LCD contrast using a microcontroller? The LCD is to be installed in a vehicle and is to withstand temperature changes. I am concerned if ...
0
votes
1answer
44 views

What are types of connection between metallic conductors and glass part of an LCD?

I know that elastomeric connectors are being used to connect metallic conductors to the conductive paths on the glass part of an LCD but there must be other ways being commonly used. For example in ...
1
vote
3answers
277 views

Convert 3.3v to 14v?

I want to use a 4D Systems OLED display with an ATmega32u4 based PCB. I'm still working on designing the PCB and have hit a problem. In the data sheet it says that one of the power supply pins for the ...
0
votes
2answers
66 views

I2C Enabled LCD Unreliability

I'm trying to control an I2C Enabled LCD Display using the STM32F0. I have a bunch boards built with the LCDs and a couple of them work all the time, a few work intermittently and a few rarely work at ...
-1
votes
1answer
47 views

Displaying binary on LCD

Hi I am doing a home project to make a simple calculator. I plan on using a encoder for the number and arithmetic inputs and I want to display it on an LCD. I plan on having a 16:4 encoder where 0 to ...
0
votes
1answer
59 views

Identify Display Technology

Can somebody tell me what display technology this is? There're digits made out individual pixels and then there're glyphs. It is installed behind white plastic.
0
votes
1answer
53 views

Arduino LCD crashing / solid top line

I have recently acquired an Arduino and LCD display, I have been experimenting with it and I have made it work, and had it working for a few days on a few different sketches. This morning, I uploaded ...
1
vote
2answers
48 views

Extra pins on HD44780 lcd

I am looking at ordering this lcd https://www.sparkfun.com/products/255, however when looking at the picture it seems that there are some extra pins on the right side not described in the hd4470 ...
0
votes
1answer
100 views

Writing to FSMC is extremely slow

I have an ARM Cortex M3 STMF32F103VE http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00191185.pdf, and I'm using an LCD with ILI9320 controller ...
1
vote
1answer
213 views

OLED 128 x 32 SSD1306 display problem (picture inside)

I bought one of these cheap 0.91" OLED displays and hooked it up according to a datasheet that was sent to me by the seller. I tried several drivers for it after I thought there are compatibility ...
1
vote
1answer
57 views

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 ...
0
votes
1answer
65 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 ...
0
votes
0answers
92 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 ...
1
vote
1answer
127 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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2answers
84 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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votes
1answer
87 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?
1
vote
1answer
236 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
votes
1answer
84 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 ...
12
votes
5answers
4k 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
210 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
263 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 ...
0
votes
0answers
59 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
191 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 ...
0
votes
2answers
49 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 ...
0
votes
0answers
170 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 ...
1
vote
0answers
194 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
votes
0answers
47 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
40 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 ...
0
votes
2answers
85 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 ...
1
vote
2answers
141 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 ...
0
votes
0answers
55 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 ...
0
votes
0answers
189 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 ...
2
votes
3answers
237 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
149 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)...
0
votes
4answers
180 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 ...
0
votes
1answer
110 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. ...
1
vote
1answer
812 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
vote
1answer
506 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
307 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 ...
0
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0answers
173 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 ...